JP5017664B2 - Seismic isolation device - Google Patents

Description

The present invention relates to MenShinSo location used for seismic isolation devices.

  Casters are often attached to relatively heavy equipment such as copying machines and medical equipment in order to facilitate movement thereof. However, by making the movement easier with casters, there is a risk that the equipment will move unpredictably in the event of an earthquake and will collide with the walls and people, damaging the walls and equipment, and injuring the human body. .

In order to prevent such damage, various techniques for fixing a device equipped with casters have been proposed. For example, a caster support that is attached to a floor surface and fixes a caster with a base and a fixing member has been proposed (see Patent Document 1).
JP 2000-139597 A

  When taking earthquake countermeasures for heavy equipment, there is a problem that a simple fixing device such as Patent Document 1 is insufficient in function, and a caster is easily detached in a large-scale earthquake. Therefore, in order to fix the device, a technique of fixing a caster or the like to the floor surface with a bolt is also used. With such a technique, the device can be firmly fixed to the floor surface, so that the movement of the device can be suppressed even during an earthquake.

  However, when moving the equipment for maintenance, etc., it is necessary to remove the bolt, and when installing it again, it is necessary to attach the bolt, and the work must be done in a narrow space at the foot of the equipment. It was very inconvenient.

  In addition, for devices that have removable accessories such as paper trays at the front, such as copiers, the accessories and the device body are firmly fixed to facilitate attachment / detachment. Not done. For this reason, when the equipment body is firmly fixed to the floor, the accessories jump out of the equipment body at the time of an earthquake and there is a risk of damage to the surroundings.

The present invention has been made in view of the above problem, the object can easily move, and an object thereof is to provide a MenShinSo location with high seismic isolation performance.

The invention according to claim 1, which has been made to solve the above problem, has a rail having a loading surface on which a caster of an object is placed, and is installed on the floor surface so that the rail can be moved in a predetermined direction along the floor surface. A base that is attached to the rail, a stopper that restricts movement of the caster in a predetermined direction, and a rail that is attached to at least one of the rail and the base. A rail friction member in contact with the rail, and the rail is provided with a drop-off preventing portion for preventing the caster from dropping off from the rail at an end portion of the loading surface in a direction intersecting the predetermined direction, and the predetermined direction. The end part of the caster is formed so that it can move between the floor surface of the caster and the loading surface, and friction generated when the rail and the base slide. Thus, the object is a seismic isolation device characterized in that deprived the energy moves to the predetermined direction.

  With the seismic isolation device configured as described above, when an object moves in a predetermined direction when an earthquake occurs, the caster comes into contact with the stopper, and the rail to which the stopper is attached moves in the predetermined direction. At this time, the friction generated between the rail and the base loses energy for moving the object in the predetermined direction, so that the width of movement in the predetermined direction can be suppressed to be small.

  Moreover, since it is possible to prevent the impact of the earthquake from being applied to the object suddenly, it is possible to suppress the object from falling and the accessory from popping out. Thereby, since the failure and breakage of the object after the occurrence of the earthquake are suppressed, it is possible to prevent the work using the object from being performed and the work from being interrupted.

  In the above-described seismic isolation device, the fixation between the caster and the seismic isolation device when the object is installed in the seismic isolation device is realized by restricting the movement of the caster with a stopper. As in the prior art, when the object or caster is completely fixed to the floor surface, it is necessary to firmly fix the object or caster. However, in the seismic isolation device of the present invention, the caster is even dropped from the rail. If you don't, you can demonstrate its seismic isolation function. In the seismic isolation device, when the caster collides with the stopper, the rail moves together with the stopper. Therefore, when the caster collides with the stopper, a load is applied to one point and the caster is less likely to jump out. Therefore, it is not necessary to firmly fix the caster, and when moving, it is only necessary to remove the stopper, for example, to remove it from the loading surface, so that it is easy to install and release the object. .

  Thus, if it is the seismic isolation apparatus of this invention mentioned above, a target object can be installed simply and a high seismic isolation effect can be acquired.

  Note that the object here refers to a device including a caster, and includes, for example, a copying machine, a medical device, a refrigerator, and a vending machine.

Moreover, the predetermined direction here is a direction in which the rail and the base slide relative to each other. When installing the seismic isolation device, it is preferable to install the seismic isolation device so that the direction in which the movement of the object is most suppressed (for example, the direction in which accessories such as a paper tray are attached) is a predetermined direction. That is, as in the seismic isolation device according to claim 8, the object is provided with a paper cassette, and the base is configured so that the predetermined direction is a drawing direction of the paper cassette. Also good.

  The above-mentioned seismic isolation device changes the seismic isolation performance according to the frictional force generated between the rail and the base, but the appropriate frictional force varies depending on the physical properties (weight, position of the center of gravity, etc.) of the object. Therefore, the frictional force generated between the rail and the base is preferably changed according to the object.

In order to change the frictional force, for example, it is conceivable to change the material of the rail and the base. Further, the seismic isolation device according to claim 1 is attached to either rail or based at least, in the rail and the base slide, Ru includes a rail friction member in contact with one different other the .

  If it is a seismic isolation apparatus comprised in this way, high seismic isolation performance can be obtained by changing frictional force. Moreover, the frictional force can be easily changed by changing the rail friction member.

  The rail friction member may be attached to either the rail or the base, or may be attached to both.

  Further, the shape of the rail friction member is not particularly limited, but it can be used by being attached to a sliding portion by forming it in a sheet shape. Further, as the rail friction member, a material having a higher friction coefficient than a friction coefficient when nothing is disposed between the rail and the base may be used, or a material having a lower friction coefficient may be used.

The base described above may be completely fixed to the floor surface, but may be attached so as to have a seismic isolation action with the floor surface. For this purpose, as in the seismic isolation device according to claim 2 , the base may be attached to the floor surface by an elastic member having elasticity arranged between the base and the floor surface.

  If it is the seismic isolation apparatus comprised in this way, since an elastic member absorbs the force transmitted to the whole seismic isolation apparatus and a target object at the time of the occurrence of an earthquake, seismic isolation performance can be improved.

  If the elastic member mentioned above has adhesiveness, it can further improve seismic isolation performance. In addition, since this elastic member is compressed into a seismic isolation device and an object in use, the elastic member has good performance to withstand this (for example, one sold by Kitagawa Kogyo Co., Ltd. under the name of Tackfit) It is desirable to use

The stopper mentioned above is good also as a structure provided with the stopper buffer material which deform | transforms elastically when a stopper contacts a caster in the position which faces a caster like the seismic isolation apparatus of Claim 3 .

  With the seismic isolation device configured as described above, when the earthquake occurs, the impact when the caster comes into contact with the stopper is buffered by the stopper cushioning material. Therefore, since the object moves at the time of the occurrence of the earthquake and the impact when it comes into contact with the stopper can be suppressed, the object can be prevented from overturning and the accessory jumping out.

  The stopper cushioning material described above is not particularly limited as long as it is a material that cushions impact, but high impact cushioning performance can be obtained by using low-resilience urethane, impact cushioning gel, or the like.

In addition , a floor friction member may be provided that is installed on the floor and suppresses the movement of the rail by sliding with the rail when the rail moves in a predetermined direction.

  With the seismic isolation device configured as described above, even when the rail moves in a predetermined direction and a part of the rail protrudes from the base at the time of occurrence of the earthquake, Since the force to suppress movement works, seismic isolation performance can be improved.

  The floor friction member may be in contact with any part of the rail, but if formed into a sheet attached to the floor, it is not conspicuous at times other than when an earthquake occurs.

Rails described above, at the end in the direction orthogonal to the predetermined direction in the product Nomen, disengagement prevention part for preventing falling off from the caster the rail is that provided.

  If it is the seismic isolation apparatus comprised in this way, it can prevent that a caster moves to the direction which cross | intersects a predetermined direction, and falls from a rail. Therefore, the movement of the object in the direction intersecting with the predetermined direction can be suppressed.

Moreover, the drop-off prevention unit described above may be configured to include a rail cushioning material that elastically deforms when contacting the caster at a position facing the caster, as in the seismic isolation device according to claim 4 .

  With the seismic isolation device configured as described above, when the earthquake occurs, an impact when the caster comes into contact with the drop-off preventing portion is buffered by the rail cushioning material. Therefore, since an object moves at the time of the occurrence of an earthquake and an impact when a caster contacts a drop-off prevention part can be controlled, a danger that a drop-off prevention part is damaged or an object floats up and falls can be reduced.

If the object moves due to the occurrence of an earthquake and the caster collides with a stopper or the like, the object may be lifted upward due to the impact at that time. Therefore, as in the seismic isolation device according to claim 5 , the mounting member is attached to the object, and the mounting member is provided on the rail and attached to the object in a state where the caster is on the loading surface. And a guide member that guides the movement of the attachment member in a predetermined direction. When the guide member is engaged with the attachment member, at least the direction of the attachment member in the direction orthogonal to the floor surface is provided. It is good also as a structure which suppresses a movement.

In the event of an earthquake, or when the caster collides with such de-drop prevention portion that stoppers or above, when subjected to vertical force of the earthquake, a possibility that lifted the object falls off from the isolator However, with the seismic isolation device configured as described above, it is possible to prevent the object from being lifted off the floor and falling off the seismic isolation device.

  Further, when the object is installed in the seismic isolation device, the guide member also guides the movement of the caster of the object, so that the installation of the object on the seismic isolation device is facilitated.

To one of the above-mentioned mounting member or guide member, b Ra is provided in the mounting member and guide member contacts the circumferential surface of the roller is in contact with one different other as described above It is good also as a structure.

  If it is a seismic isolation apparatus comprised in this way, in the state which the guide member mentioned above and the attachment member are contacting, the frictional force which acts between them can be suppressed. Therefore, when the earthquake occurs, the guide member and the mounting member are not caught, and the caster can smoothly contact the stopper and the rail can be slid appropriately with respect to the base, so that the seismic isolation performance can be improved. .

Further, the mounting member and the guide member described above may be configured to absorb an impact applied to the object by deforming at least one of them when an earthquake occurs in a state where they are engaged. . Specifically, it can be realized by forming the attachment member and the guide member with a material having an appropriate strength, and adjusting the plate thickness and area of the attachment member and the guide member. In addition, it is conceivable to configure the seismic isolation device as follows .

When member Mounting is in contact with the guide member may be configured to have a deformation area to absorb the impact by deforming.

  With the seismic isolation device configured in this way, when an earthquake occurs and the object is lifted, the mounting member comes into contact with the guide member and deforms to absorb the impact. Therefore, since the force which raises a target object can be reduced, the fall of a target object etc. can be suppressed.

  As a specific configuration of the deformation region, for example, it is conceivable to form a region in contact with the guide member in the mounting member in a comb shape.

By the way, the mounting member mentioned above is good also as a structure attached to a target object by the sticking part which has the elasticity arrange | positioned between a mounting member and a target object like the seismic isolation apparatus of Claim 6 .

  When an object is lifted from the floor surface, such as when an earthquake occurs, the lifting of the object is suppressed by engaging the mounting member and the guide member. If it is the seismic isolation apparatus of the said structure, the sticking part can buffer the impact added to the guide member and attachment member at that time. Thereby, it is possible to suppress sudden attachment of the mounting member from the object due to a large impact or damage to the mounting member or the guide member.

Although the above-mentioned sticking part may be comprised from one member which has elasticity, the 1st sticking member which has elasticity at least like a seismic isolation device of Claim 7 , and a reinforcement board And the 2nd sticking member which has elasticity may be arranged in layers in this order.

  Thus, if a sticking part is comprised using a reinforcement board, compared with the sticking part which does not contain a reinforcement board and consists only of a 1st sticking member and a 2nd sticking member, as a whole sticking part when receiving the same load Since the amount of elastic deformation of the material increases, the performance of buffering the impact increases. Therefore, if it is a seismic isolation apparatus of the structure mentioned above, it can suppress more effectively that an attachment member remove | deviates or an attachment member and a guide member are damaged.

  In addition, the material of the 1st sticking part and the 2nd sticking part will not be specifically limited if it is the material which buffers an impact, However If a low-resilience urethane, impact buffering gel, etc. are used, high impact buffering performance can be obtained. Moreover, the same material may be sufficient as a 1st sticking part and a 2nd sticking part, and a different material may be sufficient as it.

Further, the reinforcing plate may be configured with a pinching portion disposed in a positional relationship sandwiching the mounting member from both sides with respect to the top Symbol predetermined direction.

  If it is the seismic isolation apparatus comprised in this way, the movement to the predetermined direction of an attachment member will be restrict | limited by a reinforcement board. Therefore, it becomes difficult to add a twist between the mounting member and the reinforcing plate. The first sticking portion or the second sticking member may be easily detached by twisting. However, with the above configuration, since the twist is difficult to be applied between the mounting member and the reinforcing plate, the mounting member is reinforced. As a result of being difficult to come off the plate, it is possible to suppress the attachment member from coming off the object.

Meanwhile, the base was above mentioned, the direction intersecting the upper Symbol predetermined direction, and may be configured to include a base extending member extending out in a direction along the floor surface.

  When an upward force is applied to an object due to an earthquake, the base is loaded in the direction in which the base is lifted upward. However, if the seismic isolation device has the above-described configuration, the base extension member suppresses lifting. Therefore, it can suppress that a base peels from a floor surface.

Another seismic isolation device described as a reference includes a rail having a loading surface on which an object is placed, and a base that is installed on the floor and holds the rail movably in a predetermined direction along the floor. This is a seismic isolation device.

  With the seismic isolation device configured as described above, when the object moves in a predetermined direction when an earthquake occurs, the rail moves in a predetermined direction due to friction between the object and the rail. At this time, the friction generated between the rail and the base loses energy for moving the object in the predetermined direction, so that the width of movement in the predetermined direction can be suppressed to be small.

  Moreover, since it is possible to prevent the impact of the earthquake from being applied to the object suddenly, it is possible to suppress the object from falling and the accessory from popping out.

  In addition, a target object here is an apparatus which is not provided with a caster.

Isolator above SL, when the frictional force between the object and the rail is too small, there is a possibility that not available frictional force between the slips on the rail in the event of an earthquake, the rail and the base.

Therefore, is disposed between the Target object and the rail, it may be configured to include a movement restriction member for restricting the movement in the predetermined direction of the object.

  If it is a seismic isolation apparatus comprised in this way, the frictional force which arises between a rail and a base can fully be utilized.

  The movement restricting member here refers to, for example, an adhesive member attached between the object and the rail. If the member is an elastic member, the elastic member is exempted when an earthquake occurs. Since the force transmitted to the entire seismic device and the object is absorbed, the seismic isolation performance can be further enhanced.

Also, attached to either rail or based at least, in the rail and the base slide, may be configured to include a rail friction member in contact with one with different other above.

  If it is the seismic isolation apparatus comprised in this way, the appropriate frictional force according to the physical property of a target object can be obtained, and high seismic isolation performance can be obtained.

Further, base over scan is, base and may be configured to be attached to the floor by an elastic member having arranged elastically between the floor surface.

  If it is the seismic isolation apparatus comprised in this way, since an elastic member absorbs the force transmitted to the whole seismic isolation apparatus and a target object at the time of the occurrence of an earthquake, seismic isolation performance can be improved.

Moreover , it is good also as a structure provided with the floor-surface friction member which is installed in a floor surface and suppresses a movement of a rail by sliding with a rail when a rail moves to a predetermined direction.

  With the seismic isolation device configured as described above, even when the rail moves in a predetermined direction and a part of the rail protrudes from the base at the time of occurrence of the earthquake, Since the force to suppress movement works, seismic isolation performance can be improved.

Further, pairs and attachment member attached to the elephants was provided on the rail, in a state where the object is on the stacking surface engages the mounting member attached to the object, in a predetermined direction of the mounting member A guide member that guides the movement, and the guide member may be configured to suppress movement of the attachment member in at least a direction orthogonal to the floor surface when engaged with the attachment member.

  If it is a seismic isolation apparatus comprised in this way, it can prevent that a target object floats from a floor surface and falls out of a seismic isolation apparatus.

In seismic isolation device described above, the base, the direction intersecting the upper Symbol predetermined direction, and may be configured to include a base extending member extending out in a direction along the floor surface.

  If it is a seismic isolation apparatus comprised in this way, as a result of being able to suppress the lift of a base, it can control that an object rises and falls.

Another seismic isolation device described as a reference is provided on a floor surface installation member that is installed on a floor surface and has a loading surface on which a caster of an object is placed, an attachment member that is attached to the object, and a floor surface installation member. A guide member that engages with an attachment member attached to an object and guides the movement of the attachment member in a predetermined direction while the caster is on the loading surface. A seismic isolation device that suppresses movement of a mounting member along a floor surface and in a direction orthogonal to a predetermined direction and an upward direction orthogonal to the floor surface when engaged with a member. It is.

  If it is a seismic isolation apparatus comprised in this way, when a target object floats, since the movement will be restrict | limited by a guide member, it can suppress that a target object floats and falls.

In seismic isolation device described above, the floor mounting member is a direction intersecting the upper Symbol predetermined direction, and may be configured to include a floor surface extending member extending out in a direction along the floor surface.

  If it is a seismic isolation apparatus comprised in this way, as a result of suppressing the raising of a floor surface installation member, it can suppress that a target object floats and falls.

In the said seismic isolation apparatus, you may comprise so that an attachment member may have a deformation | transformation area | region which deform | transforms and absorbs an impact, when it contacts with a guide member.

  With the seismic isolation device configured in this way, when an earthquake occurs and the object is lifted, the mounting member comes into contact with the guide member and deforms to absorb the impact. Therefore, since the force which raises a target object can be reduced, the fall of a target object etc. can be suppressed.

Incidentally, the mounting member in the seismic isolation device may be configured to be attached to the object by sticking part having arranged elastically between the member with the object taken.

  When an object is lifted from the floor surface, such as when an earthquake occurs, the lifting of the object is suppressed by engaging the mounting member and the guide member. And if it is the seismic isolation apparatus of the said structure, the sticking part can buffer the impact added to the guide member and attachment member at that time. Thereby, it is possible to suppress sudden attachment of the mounting member from the object due to a large impact or damage to the mounting member or the guide member.

Pasting unit described above, even without low, a first adhering member having elasticity, and a reinforcing plate, a second adhering member having elasticity, or may be a formed by arranged in layers in this order.

  Thus, if a sticking part is comprised using a reinforcement board, compared with the sticking part which does not contain a reinforcement board and consists only of a 1st sticking member and a 2nd sticking member, as a whole sticking part when receiving the same load Since the amount of elastic deformation of the material increases, the performance of buffering the impact increases. Therefore, if it is a seismic isolation apparatus of the structure mentioned above, it can suppress more effectively that an attachment member remove | deviates or an attachment member and a guide member are damaged.

Further, the reinforcing plate may be configured relates upward Symbol predetermined direction to include a pinching portion disposed in a positional relationship sandwiching the attachment member from both sides.

  Thus, if a sticking part is comprised using a reinforcement board, compared with the sticking part which does not contain a reinforcement board and consists only of a 1st sticking member and a 2nd sticking member, as a whole sticking part when receiving the same load Since the amount of change of becomes large, the performance of buffering the impact is enhanced. Therefore, if it is a seismic isolation apparatus of the structure mentioned above, it can suppress more effectively that an attachment member remove | deviates or an attachment member and a guide member are damaged.

The seismic isolation system described as a reference includes a pair of seismic isolation devices according to any one of claims 1 to 8 and a pair of seismic isolation devices installed on a floor surface and perpendicular to a predetermined direction. A seismic isolation system comprising: a connecting member connected side by side.

  With such a seismic isolation system, the object can be isolated with two seismic isolation devices, so that a very high seismic isolation performance can be obtained.

In the above-described seismic isolation system, the pair of seismic isolation devices may be arranged so that the casters on both side surfaces of the object can be placed. Moreover, the higher seismic isolation effect can be acquired by arrange | positioning an adhesive elastic member between a connection member and a floor surface. This elastic member may have the same physical properties as or different from the elastic member described in claim 2 described above.

  Embodiments of the present invention will be described below with reference to the drawings.

[overall structure]
As shown in FIG. 1, the seismic isolation system 1 according to the present embodiment is a system that segregates an object 3 including four casters 2 and suppresses movement of the object due to the earthquake, and is disposed on a floor surface. A pair of shock absorbers 10 extending in one direction (referring to the direction A in FIG. 1 and hereinafter simply referred to as “predetermined direction”, and the same applies to FIG. 2 and the following), and a pair of shock absorbers disposed on the floor. A rectangle that connects the shock absorbers 10 in a line perpendicular to a predetermined direction (refer to direction B in FIG. 1; A and B are directions along the floor surface, and the same applies to FIG. 2 and subsequent figures). Connecting member 20 and mounting member 30 attached to the side surface of object 3 near caster 2. The object 3 referred to here is a device including a caster, and corresponds to, for example, a copying machine, a cutting machine, or a medical device.

  As shown in FIG. 2 (a), the shock absorber 10 described above is installed on the floor and a rail 40 extending in a predetermined direction (A direction in FIG. 2 (a)), and the rail 40 extends along the floor. The base 50 that is movably held in a predetermined direction and two stoppers 60 that are attached in the vicinity of both ends in the longitudinal direction of the rail 40 are provided. FIG. 2B shows a state where the rail 40 has moved in a predetermined direction.

  As shown in FIG. 3, the rail 40 includes a rectangular rail bottom plate 41 extending in a predetermined direction (direction A in FIG. 3). On the upper surface of the rail bottom plate 41, a stacking surface 42 on which the caster 2 of the object 3 is placed extends. The rail 40 extends in a direction orthogonal to the loading surface 42 at the end of the loading surface 42 in the direction intersecting with the predetermined direction described above (direction B in FIG. 3), and the caster 2 extends from the loading surface 42 of the rail 40. A pair of side plates 43 are formed to prevent falling off. On the other hand, since the side plate 43 is not formed at the end portion in the predetermined direction on the loading surface 42, the caster 2 can move from the floor surface or the base 50 to the loading surface 42 at the end portion in the predetermined direction. Yes.

  Guide members 44 (44A, 44B) are provided at the upper ends of the pair of side plates 43 at both ends in a predetermined direction.

  Each guide member 44 has a groove 45 into which the stopper 60 is fitted.

  A cross-sectional view of the rail 40 is shown in FIG. 4A is a cross-sectional view at a position C in FIG. 3, and FIG. 4B is a cross-sectional view at a position D in FIG. The side plate 43 is formed higher in C than in D.

  As shown in FIG. 3, a sheet-like rail friction member 46 is attached to the back surface of the rail 40. The rail friction member 46 comes into contact with the base 50 when the rail 40 and the base 50 slide.

  As shown in FIG. 5, the base 50 is disposed in a rectangular base bottom plate 51 extending along the above-described predetermined direction (direction A in FIG. 5) and in parallel with the base bottom plate 51, and in a predetermined direction of the base bottom plate 51. , And a bottom plate receiver 52 connected to the base bottom plate 51 at the end in the direction intersecting with B (direction B in FIG. 5). The rail bottom plate 41 of the rail 40 described above is disposed between the base bottom plate 51 and the bottom plate receiver 52. In this way, the base 50 holds the rail 40 so as to be movable in a predetermined direction. In addition, one end 53 in a predetermined direction of the base 50 has a shape bent in the floor surface direction, so that the caster 2 can be easily climbed from the floor surface.

  In addition, the floor 50 side surface of the base 50 has adhesiveness and elasticity, and an elastic member 54 attached to both the floor surface and the base 50 is disposed. As this elastic member 54, it is preferable to use a material having good performance to withstand compression by the shock absorbing device 10 and the object 3, for example, those sold by Kitagawa Kogyo Co., Ltd. under the trade name of Tackfit. preferable.

  The stopper 60 is disposed near both ends of the rail 40 in a predetermined direction. Therefore, the stopper 60 is disposed so as to be sandwiched from the outside of the two casters 2 riding on one rail 40. As shown in FIG. 6, the stopper 60 is disposed at a position facing the caster 2 and a plate-like member 61 having a shape that can be fitted into the groove 45 of the rail 40, and elastically deforms when contacting the caster 2. And a stopper cushioning material 62.

  As shown in FIG. 1, an elastic member 21 that has adhesiveness and elasticity and is attached to both the floor surface and the connecting member 20 is disposed on the floor side surface of the connecting member 20 described above.

  Further, as shown in FIG. 7, the mounting member 30 described above includes a rectangular plate portion 31, a pasting member 32 attached to one surface of the plate portion 31, and a lower end portion of the plate portion 31. An extension portion 33 extending in a direction intersecting with the portion 31 and in a direction in which the attaching member 32 is attached, and provided in the vicinity of the tip of the extension portion 33 on the side opposite to the plate portion 31. A roller 34 having a rotation axis in a direction orthogonal to the main surface.

  The affixing member 32 attaches the attachment member 30 and the object 3 and has adhesiveness and elasticity. The affixing member 32 may be formed by a single member, or may be formed by stacking a plurality of sheet-like members.

  In FIG. 8A, the attachment member 30 is attached to the object 3, the caster 2 is on the loading surface 42 of the shock absorbing device 10, and the attachment member 30 and the guide member 44A of the rail 40 are engaged. The side view seen from the predetermined direction in a state is shown. In addition, since it is the same also when the attachment member 30 and the guide member 44B engage, drawing is abbreviate | omitted.

  In the above state, the guide member 44 guides the movement of the mounting member 30 in the predetermined direction described above.

The shock absorbing device 10 and the mounting member 30 correspond to the seismic isolation device in the present invention. [Operation of seismic isolation system]
In normal times other than when an earthquake occurs, two casters 2 of the object 3 are positioned on the loading surface 42 of the rail 40 of each shock absorber 10 as shown in FIG. Since the stopper 60 is disposed near both ends of the rail 40 in the predetermined direction so as to be sandwiched from the outside of the caster 2, the movement of the caster 2 in the predetermined direction is restricted by the stopper 60. Further, the side plate 43 restricts the movement of the caster 2 in the direction intersecting the predetermined direction. Therefore, the object 3 is immovable from the seismic isolation system 1. Note that the object 3 can be moved from the seismic isolation system 1 by removing the stopper 60 from the groove 45.

  When the object 3 moves in a predetermined direction when an earthquake occurs, the caster 2 comes into contact with the stopper 60. At this time, the impact when the caster 2 comes into contact with the stopper 60 is buffered by the stopper cushioning material 62.

  Subsequently, the rail 40 to which the stopper 60 is attached moves in a predetermined direction. While the earthquake continues, the rail 40 reciprocates on the base 50 in a predetermined direction. At this time, because the friction between the rail 40 and the base 50 deprives the energy for moving the object 3 in the predetermined direction, the width of the movement in the predetermined direction is kept small.

  On the other hand, the movement in the direction in which the object 3 intersects the predetermined direction is suppressed by the caster 2 coming into contact with the side plate 43 of the rail 40.

  Further, when the object 3 is lifted by the caster 2 colliding with the stopper 60, the side plate 43 or the like, or receiving the force in the vertical direction of the earthquake, the guide member 44 is moved as shown in FIG. Since it contacts with the circumferential surface of the roller 34 in the extending portion 33 of the mounting member 30, further lifting of the object 3 in the upward direction perpendicular to the floor surface is suppressed.

Moreover, the adhesive elastic member 21 and the elastic member 54 provided in the connecting member 20 and the base 50 suppress the force transmitted to the entire seismic isolation system 1 and the object 3 due to the earthquake.
[effect]
With the seismic isolation system 1 configured in this way, friction force generated between the rail 40 and the base 50 when an earthquake occurs, buffering by the stopper cushioning material 62 when the caster 2 contacts the stopper 60, and The seismic isolation action by the elastic member 21 and the elastic member 54 attached to the floor can prevent a sudden impact on the object 3, so that the object 3 can be moved unpredictably, The occurrence of damage to the object 3 can be suppressed.

  In addition, since the lifting of the object 3 from the floor surface is suppressed by the mounting member 30 and the guide member 44, the object 3 can be prevented from falling off the seismic isolation system 1. Further, the friction force acting between the guide member 44 and the mounting member 30 can be suppressed by the roller 34. Therefore, when an earthquake occurs, the caster 2 can smoothly come into contact with the stopper 60, and the rail 40 can be appropriately slid with respect to the base 50, so that the seismic isolation performance can be enhanced.

  In the above-described seismic isolation system 1, the frictional force generated between the rail 40 and the base 50 can be easily changed by replacing the rail friction member 46, so that the physical properties (weight and center of gravity) of the object 3 can be changed. It is possible to set an appropriate frictional force according to the position, etc., and high seismic isolation performance can be obtained.

  Moreover, since the fixation of the caster 2 and the seismic isolation system 1 when the target object 3 is installed in the seismic isolation system 1 is realized by restricting the movement of the caster 2 by the stopper 60, the stopper 60 It is possible to move the object 3 simply by removing it from the rail 40, and the operation of installing and releasing the object 3 becomes simple.

  Further, the height of the side plate 43 is changed along a predetermined direction, and in the portion where the side plate 43 is low (position D in FIG. 3), there is a case where some accessory is attached to the lower part of the object 3. Even in this case, the object 3 can be installed without contacting the side plate 43 or the guide member 44B.

  By the way, in today's general office, there are many cases where free access (construction that can be wired under the floor) is performed, and 60% or more of the above-mentioned free access floor is the national average. Fixing things has become even more difficult. It is said that even floors other than free access are not strong enough to fix objects exceeding 100kg in weight unless reinforcement work other than anchor bolts is performed.

  Also, if the target object is an OA device or medical device with a caster, there is a high need for use as part of business continuity (BCP) immediately after the earthquake has stopped, so the impact of the earthquake is more than just a fall prevention. It is required to increase the probability that the object can be used normally after an earthquake, but if it is firmly fixed with anchor bolts etc., even if the object does not fall Due to the large impact on the object, normal use of the object is difficult.

However, since the seismic isolation system 1 of the above embodiment is intended to reduce the impact transmitted to the object 3 when an earthquake occurs, it does not need to be firmly fixed to the floor using anchor bolts or the like. A big impact is applied to the object 3, and business continuity (BCP) after the earthquake can be improved.
[Modification]
As described above, the first embodiment of the present invention has been described, but the present invention is not limited to the above-described embodiment, and it goes without saying that various forms can be taken as long as they belong to the technical scope of the present invention.

  For example, in the above-described embodiment, the configuration in which the rail friction member 46 is provided on the back surface of the rail 40 is illustrated. However, if the friction force generated between the rail 40 and the base 50 can be adjusted, a specific attachment is possible. The position is not particularly limited. For example, you may attach to the surface which contacts the rail 40 of the base 50. FIG.

  Moreover, in the said Example, although the attachment of the stopper 60 illustrated the structure implement | achieved by being engage | inserted in the groove part 45 formed in the rail 40, if it can fix to the rail 40, the specific fixing method will be especially limited. Not. For example, a method of fixing to the rail 40 by screwing is conceivable.

  Moreover, in the said Example, although the structure to which an adhesive elastic member was attached to the connection member 20 and the base 50 was illustrated, the structure provided with the friction member which does not have adhesiveness and elasticity may be sufficient, and a floor There may be a configuration in which nothing is arranged between the surfaces and the surfaces are completely fixed to the floor surface.

  Moreover, in the said embodiment, although the structure in which the roller 34 was provided in the attachment member 30 was illustrated, the structure in which a roller is provided in the guide member 44 may be sufficient, and the structure in which a roller is not provided may be sufficient. . In addition, the structure in which a roller is not provided is shown by FIG. 12 in Example 2 mentioned later. The action of the guide member and the mounting member at this time is the same as that described in the second embodiment.

  In the configuration in which the roller is not provided, the object 3 is lifted, and a frictional force is generated when the guide member 44 and the extending portion 33 come into contact with each other, so that the energy for moving the object 3 in a predetermined direction is generated. Since it is taken away, movement in a predetermined direction is suppressed. In order to change the frictional force, a member that generates the frictional force may be disposed at a position where the guide member 44 and the extending portion 33 are in contact with each other when the object 3 is lifted. By comprising in this way, when the guide member 44 and the extension part 33 contact, since the energy which moves the target object 3 to a predetermined direction is taken, the movement to a predetermined direction is suppressed.

  In addition, since the frictional force between the guide member 44 and the attachment member 30 that can provide the highest seismic isolation performance varies depending on the physical properties (weight, position of the center of gravity, etc.) of the object 3, Accordingly, it is preferable to appropriately provide a roller or attach a member that generates a frictional force.

  Moreover, in the said Example, although the rail 40 illustrated the structure rubbed only with the base 50, it is good also as a structure rubbed with other members.

  For example, as shown in FIG. 9A, the floor friction member 47 having a frictional force is arranged at a position on the floor surface where the rail 40 moves when an earthquake occurs, as shown in FIG. 9B. In addition, a configuration is conceivable in which the rail 40 is slid with the floor friction member 47 when the rail 40 moves in a predetermined direction and the movement of the rail 40 is suppressed by the frictional force.

  With the seismic isolation system configured as described above, even when the rail 40 moves in a predetermined direction and a part of the rail 40 protrudes from the base 50 when the earthquake occurs, the rail 40 moves. Since the force that suppresses the vibration works, seismic isolation performance can be improved. Further, since members other than the base 50 can be used to suppress the movement of the rail 40, it is not necessary to make the base 50 large so as to cover the range in which the rail 40 can move. It is possible to reduce the size and weight.

  Moreover, in the said Example, although the structure which mounts all the four casters 2 of the target object 3 in the two impact buffering apparatuses 10 was illustrated, it is not limited to the structure in which all the casters 2 are mounted. For example, the shock absorbing device 10 may be configured so that only one caster rides.

  Moreover, in the said Example, although the structure which connects a pair of impact buffering device 10 with the rectangular connection member 20 was illustrated, the state which arranged the positional relationship of a pair of impact buffering device 10 in the direction orthogonal to a predetermined direction As long as it can be maintained, the specific configuration is not particularly limited. For example, a configuration is possible in which the connecting member is formed in an X shape in which two rectangular plates intersect and connected to each of the shock absorbing devices 10 at two locations.

  Moreover, in the said Example, the structure which the height of the side plate 43 changes in steps along a predetermined direction was illustrated. However, depending on the shape of the lower part of the target object 3, it is not necessary to change the height of the side plate 43. For example, as shown in FIG. 10, the side plate 43 may have a constant height.

  In this way, if the seismic isolation system is configured such that the height of the side plate 43 is constant, the height at which the extending portion 33 of the mounting member 30 and the guide member 44 are positioned is uniformly aligned along a predetermined direction. The mounting member 30 is guided in a predetermined direction in any guide member 44. Therefore, when the object 3 moves on the rail 40, there is no possibility that the mounting member 30 interferes with the guide member 44 that is not properly guided because the height is different, and the object 3 can be installed and moved smoothly. It becomes like this.

  Furthermore, when there are a plurality of guide members 44 having different heights, there is a possibility that the force applied to each guide member 44 may be biased when the object 3 is lifted when an earthquake occurs. However, the height of the guide member 44 is constant. By doing so, since force is equally applied to any of the guide members 44, the lifting of the object 3 can be suppressed stably, and as a result, stable seismic isolation performance can be exhibited. In addition, since the rail 40 has a simple shape, the manufacturing cost is excellent.

  Moreover, in the said Example, although the structure which isolate | separates the target 3 provided with the caster 2 and suppresses the movement by an earthquake was illustrated by the seismic isolation system 1, it limited as a target provided with a caster. Not. For example, the seismic isolation system 1 can exhibit the functions even with a legged organized dance.

  FIG. 11 shows a state in which the object 4 that does not include casters and includes legs 70 instead is installed in the seismic isolation system 1. A movement restricting member 71 having adhesiveness and elasticity is attached to the lower surface of the leg 70, and when an earthquake occurs, a sufficient frictional force is generated between the rail 40 and the base 50 without sliding on the rail 40. Can be used. The other configurations are the same as those in the above embodiment, and the same operations and effects as those in the above embodiment 1 can be obtained. It is also possible to use the floor friction member 47 described above.

[overall structure]
As shown in FIG. 12, the seismic isolation device 101 of the present embodiment is a device for isolating the object 103 including the casters 102 and suppressing movement due to the earthquake, and is installed on the floor surface. The floor surface installation member 105 having the loading surface 104 on which the caster 102 is placed, the mounting member 110 attached to the object 103, and the floor surface installation member 105 are provided. The guide member 120 engages with the attachment member 110 attached to the object 103 and guides the movement in a predetermined direction (X direction in FIG. 12).

  As shown in FIG. 13, the attachment member 110 intersects the plate portion 111 from the rectangular plate portion 111, the attaching member 112 attached to one surface of the plate portion 111, and the lower end portion of the plate portion 111. Extending in the direction in which the attaching member 112 is attached, and the extending portion 113 extends in a direction parallel to the main surface of the plate portion 111 from the tip opposite to the plate portion 111. Engaging portion 114.

  The affixing member 112 attaches the attachment member 110 and the object 103 and has adhesiveness and elasticity.

  The engaging portion 114 extends in the same direction as the plate portion 111 with the extending portion 113 as a reference.

The guide member 120 includes a vertical plate 121 that stands vertically from the floor surface, a horizontal plate 122 that extends from the upper end of the vertical plate 121 and extends parallel to the floor surface, and downward from the front end of the horizontal plate 122. And a hanging plate 123 that expands. The horizontal plate 122 extends outward from the position where the casters 102 are arranged.
[Operation and effect of seismic isolation device]
When the object 103 moves in a direction orthogonal to a predetermined direction (Y direction in FIG. 12) at the time of the occurrence of the earthquake, the engaging portion 114 of the mounting member 110 contacts the vertical plate 121 or the suspension plate 123 (or the plate Therefore, the movement of the object 103 in the above direction is limited. Further, when the object 103 floats upward (Z direction in FIG. 12), the engaging portion 114 of the mounting member 110 comes into contact with the horizontal plate 122 (or the hanging plate 123 comes into contact with the extending portion 113). For this reason, it is possible to suppress further floating.

In this way, with the seismic isolation device of this embodiment, since the movement of the object 103 in the direction orthogonal to the predetermined direction can be suppressed, the object 103 moves unpredictably and damages the surroundings. Can be suppressed.
[Modification]
As shown in FIG. 14, the floor surface installation member 105 includes a floor surface extending member 106 that extends in a direction intersecting with a predetermined direction and in a direction along the floor surface (Y direction in FIG. 14). Also good.

  When the floor surface extension member 106 is not provided, the floor surface installation member 105 is engaged with the mounting member 110 when the object 103 moves in the vertical and horizontal directions when an earthquake occurs. An attempt is made to float so that the end 107 of the member 105 rotates about the rotation axis.

  Here, when the floor surface installation member 105 includes the floor surface extension member 106, the rotation axis changes to the end portion 108. Since the floor surface installation member 105 becomes difficult to rotate as the distance from the point where the force on the floor surface installation member 105 acts (the point where it contacts the attachment member 110) to the rotation axis increases, the floor surface extension member 106 is provided. Thus, the rotation of the floor surface installation member 105 can be suppressed, the lifting of the object 103 can be suppressed, and the floor surface installation member 105 can be further prevented from being peeled off from the floor surface.

[overall structure]
The seismic isolation system 1 in Example 3 is shown in FIG. The seismic isolation system 1 of the present embodiment has basically the same configuration as that of the first embodiment. However, since the structures of the mounting member 30, the rail 40, and the base 50 are partially different, the differences will be mainly described.

  FIG. 16 shows a side view of the mounting member 30 of this embodiment as viewed from a predetermined direction (direction A in FIG. 15). As in the first embodiment, the attachment member 30 includes the plate portion 31 and the extension portion 33, and the main surface of the plate portion 31 from the tip of the extension portion 33 opposite to the plate portion 31. A deforming portion 35 extending in a parallel direction is provided. Further, it is attached to the object 3 by a pasting part 140 instead of the pasting member 32.

  The sticking part 140 is formed by arranging a first sticking member 141, a reinforcing plate 142, and a second sticking member 143 in this order in layers, and the first sticking member 141 is arranged on the object 3 side. Then, the second sticking member 143 is disposed on the plate portion 31 side of the mounting member 30. The 1st sticking member 141 and the 2nd sticking member 143 have adhesiveness and elasticity, and attach the attachment member 30 to the target object 3 with the adhesiveness. Further, when a load is applied to the attachment member 30, it is elastically deformed.

  As this 1st sticking member 141 and the 2nd sticking member 143, what is marketed with the brand name of a tack fit from Kitagawa Industries, for example is preferable.

  The top view which looked at the sticking part 140 from the upper direction orthogonal to a floor surface is shown in FIG. The reinforcing plate 142 includes a sandwiching portion 144 that is disposed in a positional relationship that sandwiches the plate portion 31 of the mounting member 30 from both sides with respect to a predetermined direction (A direction in FIG. 17). It is formed to be a mold.

  Further, FIG. 18 shows a perspective view of the pasting portion 140. FIG. 18 shows a state where the second sticking member 143 is removed from the reinforcing plate 142. The 1st sticking member 141 and the 2nd sticking member 143 are divided | segmented and arrange | positioned at the up-down direction (E direction in FIG. 18).

  As shown in FIG. 19, the extended portion of the deformable portion 35 is formed in a comb shape.

  As shown in FIG. 20, the rail 40 includes rail cushioning members 150 that elastically deform when contacted with the casters 2 at four positions on the side plate 43 facing the casters 2.

As shown in FIG. 15, the base 50 includes a base extending member 160 that is a plate-like member that extends in a direction intersecting the predetermined direction described above (the B direction in FIG. 15). The base extending member 160 is disposed so as to straddle the two bases in the seismic isolation system 1 at both ends in the predetermined direction of the base 50.
[Operation and effect of seismic isolation system]
At the time of the occurrence of an earthquake, when the object 3 is lifted due to the caster 2 colliding with the stopper 60, the side plate 43 or the like, or receiving the force in the vertical direction of the earthquake, the guide member 44 becomes a deformed portion of the mounting member 30. Since it contacts 35, the further lifting of the target object 3 regarding the upward direction orthogonal to a floor surface is suppressed.

  At this time, the sticking portion 140 having elasticity extends in the vertical direction and elastically deforms, thereby buffering the lifting force. Since the sticking part 140 has the reinforcing plate 142 disposed between the first sticking member 141 and the second sticking member 143, the buffering effect of the upward lifting force is increased, and the object 3 is prevented from falling. Can be suppressed. This is considered to be a result of an increase in the amount of elastic deformation of the pasting portion 140 as a whole as compared with the configuration without the reinforcing plate 142.

  Moreover, the 1st sticking member 141 and the 2nd sticking member 143 are divided | segmented and attached to the up-down direction. In this case, compared with the case where the 1st sticking member 141 or the 2nd sticking member 143 of the same area comprised by 1 sheet | seat is not divided | segmented to an up-down direction, a buffer effect can be enlarged more. This is considered to be a result of increasing the amount of elastic deformation of the entire pasting portion 140 by attaching the first pasting member 141 and the second pasting member 143 in the vertical direction.

  Further, since the plate portion 31 of the mounting member 30 is sandwiched from both sides with respect to the predetermined direction by the sandwiching portion 144 of the reinforcing plate 142, movement in the predetermined direction is restricted. Therefore, it becomes difficult to add a twist between the plate portion 31 and the reinforcing plate 142. The second sticking member 143 may be easily detached by twisting, but it becomes difficult to twist between the plate portion 31 and the reinforcing plate 142, so that twisting is difficult to be applied to the second sticking member 143. As a result of the plate portion 31 becoming difficult to be detached from the reinforcing plate 142, it is possible to suppress the attachment member 30 from being detached from the object 3.

  In addition, since the reinforcing plate 142 has a U-shaped cross section together with the sandwiching portion 144, the rigidity of the reinforcing plate 142 is increased, and the reinforcing plate 142 is damaged even when a load is applied in the event of an earthquake, and the mounting member 30 is the target. It can suppress that it remove | deviates from the thing 3. FIG.

  Furthermore, as shown in FIG. 21, when the object 3 has a laminated structure including the first layer 3A and the second layer 3B, the first sticking member 141 is provided on each of the first layer 3A and the second layer 3B. As a result of being able to suppress separation of the first layer 3 </ b> A and the second layer 3 </ b> B even if the object 3 receives a lifting force when an earthquake occurs, only the second layer 3 </ b> B can be suppressed. Jumping out and damaging the surroundings can be suppressed.

  Note that the object 3 having such a stacked structure corresponds to a printer or the like in which a sheet feeding cassette is stacked below.

  Further, since the deforming portion 35 is formed in a comb-teeth shape, the rigidity is lower than that of the plate portion 31 and the extending portion 33, and it is easy to deform when the deforming portion 35 contacts the guide member 44. Therefore, when the object 3 is lifted, the deforming portion 35 is in contact with the guide member 44 and deforms to absorb the impact, thereby suppressing the force that the object is lifted, and suppressing the object 3 from being overturned. can do.

  Further, since the rail cushioning material 150 is provided on the side plate 43 of the rail 40, the impact when the caster 2 collides with the side plate 43 or the like is absorbed, and the force that lifts the object 3 due to the collision is suppressed. And the fall of the object 3 can be suppressed.

  In addition, since the base 50 includes the base extending member 160, even if a vertical or horizontal load is applied to the object 3 due to an earthquake, the base 50 is prevented from being lifted, and the object 3 is lifted and falls. The base 50 can be prevented from peeling off the floor surface. This can be explained as follows.

  When the object 3 moves and a load is applied to the base 50 in the event of an earthquake or the like, the base 50 floats so as to rotate about the end in the direction orthogonal to the predetermined direction (direction B in FIG. 15). I will try. At this time, since the base 50 includes the base extending member 160, the rotation shaft changes to the end of the base extending member 160 in the B direction.

  The force necessary for the object 3 to rotate increases as the distance from the center of gravity of the object 3 to the both ends increases. In the base 50 according to the present embodiment, the rotation shaft is formed at a position away from the center of gravity of the object 3 by the base extending member 160, so that the object 3 is difficult to rotate. As a result, the base 50 is lifted from the floor surface. It becomes difficult, and the lifting of the object 3 can be suppressed.

  In recent offices, the number of cases where carpets are laid on the floor surface is increasing. In this case, even if the adhesive strength of the elastic member 54 that fixes the base 50 and the carpet on the floor surface is strong, If the stickiness is weak, there is a risk that the carpet will be lifted when an earthquake occurs. However, since the base extending member 160 described above can suppress the lifting of the object 3 without depending on the carpet, the floor surface, and the adhesive strength, it is possible to reduce the risk of the object falling due to peeling of the carpet.

By the way, in an actual earthquake, it is at most several times that the object 3 receives a strong lifting force that causes the object 3 to fall while the earthquake continues. It becomes important. In the configuration of the present embodiment, the impact when the caster 2 collides with the side plate 43 can be reduced, and when the caster 2 is lifted, the impact can be reduced by the affixing portion 140 and the deforming portion 35. A very high fall prevention performance can be obtained.
[Modification]
As described above, the third embodiment of the present invention has been described. However, the present invention is not limited to the above-described embodiment, and it goes without saying that various forms can be taken as long as they belong to the technical scope of the present invention.

  For example, in the said Example, although the structure formed in the position where the deformation | transformation part 35 contacts the guide member 44 was illustrated, if the force which the target object 3 floats can be buffered, the specific structure will be especially limited. Not. For example, the structure which the extension part 33 deform | transforms may be sufficient.

  Moreover, the shape of the deformation | transformation part 35 will not be specifically limited if it is a shape which can deform | transform when a load is applied. For example, a mixture of combs having different heights and widths (FIG. 22A), a T-shaped one (FIG. 22B), a corrugated one (FIG. 22C), or the like may be used. Conceivable.

  Other than the above, the extending tip has a curved shape, for example, as shown in FIG. 23 (a), the deformed portion 35 does not have a comb shape and is curved in one direction, or as shown in FIG. 23 (b). In addition, it is conceivable that the deforming portion 35 has a comb shape and is alternately bent in the opposite direction.

  Moreover, in the said Example, although the base extension member 160 illustrated the structure arrange | positioned so that it might straddle the two bases 50, the structure where each base 50 is equipped with the base extension member 160 separately may be sufficient. .

[overall structure]
As shown in FIG. 24, the seismic isolation system 200 of the present embodiment is a system for isolating the object 3 including the four casters 2 and suppressing the movement of the object due to the earthquake, and is disposed on the floor surface. A pair of shock absorbers 210L and 210R extending long in a predetermined direction (front-rear direction in FIG. 24) and a pair of shock absorbers 210L and 210R arranged on the floor and perpendicular to the predetermined direction (left and right in FIG. 24) A rectangular connecting member 220 connected side by side in the direction) and an attachment member 230 attached to the side surface of the object 3 near the caster 2. The object 3 referred to here is a device including a caster, and corresponds to, for example, a copying machine, a cutting machine, or a medical device. The object 3 of the present embodiment has a laminated structure, and has a structure that can be separated into a lower first layer 3A and an upper second layer 3B.

  Of the shock absorbing devices 210L and 210R described above, the shock absorbing device 210R arranged on the right side is shown in FIG.

  The shock absorbing device 210R includes a rail 240R extending in the front-rear direction, a base 250 that is installed on the floor and holds the rail 240R so as to be movable in the front-rear direction along the floor, and both ends in the longitudinal direction (front-rear direction) of the rail 240R. And two stoppers (a first stopper 260 and a second stopper 263) attached in the vicinity. FIG. 25B shows a state where the rail 240R has moved forward.

  As shown in FIG. 26, the rail 240 </ b> R includes a rectangular rail bottom plate 241 extending in the front-rear direction, and a loading surface 242 on which the caster 2 of the object 3 is placed extends on the top surface of the rail bottom plate 241. The rail 240R has a pair of left and right side plates that extend in a direction orthogonal to the loading surface 242 at the left and right ends of the loading surface 242 and prevent the casters 2 from falling off the loading surface 242 of the rail 240R. 243 is formed. Since the side plate 243 is not formed at the front-rear end of the stacking surface 242, the caster 2 can move from the floor surface or the base 250 to the stacking surface 242 at the front-rear end. Yes.

  A rail cushioning material 248 that elastically deforms when contacting the caster 2 is provided on the surface facing the caster 2 in the side plate 243 (the surface where the pair of side plates 243 face each other).

  A guide member 244 having a surface extending in the front-rear direction intersecting with the surface facing the caster 2 of the side plate 243 is provided at the upper end of one of the pair of side plates 243 (the right side plate 243). Further, the side plate 243 (and the guide member 244) is formed with a groove 245A into which the first stopper 260 is fitted and a groove 245B into which the second stopper 263 is fitted. The groove portion 245A is a groove formed downward from the upper end of the side plate 243, and is formed in the vicinity of the rear end portion of the rail 240R. Further, the groove 245B is an L-shaped groove extending downward from the upper end of the side plate 243 and having its lower end bent forward, and is formed near the front end of the rail 240R.

  A sheet-like rail friction member 246 is attached to the back surface of the rail 240R. The rail friction member 246 contacts the base 250 when the rail 240R and the base 250 slide.

  The shock absorber 210L disposed on the left side in the seismic isolation system 200 of the present embodiment has basically the same configuration as the shock absorber 210R, but is symmetrical to the rail 240R instead of the rail 240R. A rail 240L is provided.

  As shown in FIG. 27A, the base 250 is a rectangular base bottom plate 251 extending in the front-rear direction, and extends in a direction perpendicular to the base bottom plate 251 at the left and right ends of the base bottom plate 251. And a bottom plate receiver 252 that extends from the upper end of the side wall 255 and is arranged in parallel with the base bottom plate 251 in a stepwise manner. The rail bottom plate 241 of the rails 240L and 240R described above is disposed between the base bottom plate 251 and the bottom plate support 252. In this way, the base 250 holds the rails 240L and 240R so as to be movable in the front-rear direction.

  The front end 253 of the base 250 has a shape bent in the floor surface direction, so that the caster 2 can be easily climbed from the floor surface.

  In addition, as shown in FIG. 27B, the bottom plate receiver 252 and the rear end portion 256 of the side wall 255 in the base 250 are bent inwardly so that the rails 240L and 240R can be seen from the rear. It is formed so as not to jump out.

  Further, the surface of the base 250 on the floor surface side has adhesiveness and elasticity, and an elastic member 254 attached to both the floor surface and the base 250 is attached. As this elastic member 254, it is preferable to use a material having good performance to withstand compression by the impact buffering devices 210L and 210R and the object 3, and is sold, for example, by Kitagawa Kogyo Co., Ltd. under the trade name of Tackfit. Those are preferred.

  Further, as shown in FIG. 24, the base 250 includes a base extending member 257 that is a plate-like member extending in the left-right direction. The base extension member 257 is disposed so as to straddle the two bases 250 in the seismic isolation system 200 on both ends in the front-rear direction of the base 250.

  As shown in FIG. 28, the first stopper 260 is disposed at a position facing the caster 2 and a plate-like member 261 that can be fitted into the rails 240L and 240R by fitting into the grooves 245A behind the rails 240L and 240R. And a stopper cushioning material 262 that elastically deforms when it comes into contact with the caster 2.

  As shown in FIG. 29, the second stopper 263 is disposed at a position facing the caster 2 and the shaft 264 having a shape that can be fitted in the groove 245B in front of the rails 240L and 240R. A stopper cushioning material 265 that elastically deforms, and a bracket 266 having a U-shaped cross section that holds the shaft 264 and the stopper cushioning material 265.

  The stopper cushioning materials 262 and 265 described above may be formed by a single member, or may be formed by stacking a plurality of sheet-like members.

  As shown in FIG. 24, an elastic member 221 attached to both the floor surface and the connecting member 220 is disposed on the floor side surface of the connecting member 220 described above.

  Further, as shown in FIG. 30, the mounting member 230 described above includes a rectangular plate portion 231, an extending portion 232 extending from the lower end portion of the plate portion 231 in a direction intersecting with the plate portion 231, and an extension. The protruding portion 232 includes an engaging portion 233 extending from a tip on the opposite side to the plate portion 231 in a direction parallel to the main surface of the plate portion 231. The engaging portion 233 extends in the same direction as the plate portion 231 with the extending portion 232 as a reference.

  In FIG. 31, the attachment member 230 is attached to the object 3, the caster 2 is on the loading surface 242 of the shock absorbing device 210R, and the attachment member 230 and the guide member 244 of the rail 240R are engaged. The side view which looked at from the front is shown. This FIG. 31 differs from the other drawings in the ratio of the dimensions of each component.

  In the above state, the guide member 244 guides the movement of the attachment member 230 in the front-rear direction.

  As shown in FIG. 31, the attachment member 230 is attached to the object 3 by the pasting part 270.

  The sticking part 270 is formed by arranging the first sticking member 271, the reinforcing plate 272, and the second sticking member 273 in this order in layers, and the first sticking member 271 is arranged on the object 3 side. Then, the second sticking member 273 is disposed on the plate portion 231 side of the mounting member 230. The 1st sticking member 271 and the 2nd sticking member 273 have adhesiveness and elasticity, and attach the attachment member 230 to the target object 3 with the adhesiveness. Further, the first sticking member 271 and the second sticking member 273 are elastically deformed when a load is applied to the mounting member 230.

  As this 1st sticking member 271 and the 2nd sticking member 273, what is marketed with the brand name of a tack fit from Kitagawa Industries, for example is preferable. Moreover, although the 1st sticking member 271 and the 2nd sticking member 273 may be formed by one member, they may be formed by stacking a plurality of sheet-like members.

  Moreover, the 1st sticking member 271 and the 2nd sticking member 273 are divided | segmented and arrange | positioned at the up-down direction. In the present embodiment, since the object 3 has a laminated structure including the first layer 3A and the second layer 3B, the first sticking members 271 are attached to the first layer 3A and the second layer 3B, respectively.

  The top view which looked at the sticking part 270 from the upper direction orthogonal to a floor surface is shown in FIG. The reinforcing plate 272 includes a sandwiching portion 274 that is disposed in a positional relationship that sandwiches the plate portion 231 of the mounting member 230 from both sides in the front-rear direction, and is formed so that a cross section viewed from above is a U-shape. ing.

Further, a floor friction member 247 having a frictional force is disposed at a position on the floor where the rails 240L and 240R move when an earthquake occurs. When the rails 240L, 240R move forward, they slide with the floor friction member 247, and the movement of the rails 240L, 240R is suppressed by the frictional force.
[Operation and effect of seismic isolation system]
In a normal time other than the occurrence of an earthquake, two casters 2 of the object 3 are located on each loading surface 242 of the rails 240L and 240R as shown in FIG. Since the first stopper 260 and the second stopper 263 are disposed so as to be sandwiched from the outside of the caster 2 in the vicinity of both ends of the rail 240 in the front-rear direction, the first stopper 260 and the second stopper 263 allow the caster 2 to Movement in the front-rear direction is restricted. Further, the side plate 243 restricts the movement of the caster 2 in the left-right direction. In this way, the object 3 is immovable from the seismic isolation system 200.

  When the object 3 moves in the front-rear direction when an earthquake occurs, the caster 2 comes into contact with the first stopper 260 and the second stopper 263. At this time, the impact when the caster 2 comes into contact with the first stopper 260 and the second stopper 263 is buffered by the stopper cushioning materials 262 and 265.

  Subsequently, the rails 240L and 240R to which the first stopper 260 and the second stopper 263 are attached move in the front-rear direction. While the earthquake continues, the rails 240L and 240R reciprocate on the base 250 in the front-rear direction. At this time, because the friction between the rails 240L and 240R and the base 250 deprives the energy for moving the object 3 in the front-rear direction, the width of movement in the front-rear direction can be kept small. Further, when the rails 240L and 240R come into contact with the rear end portion 256 of the base 250, the bent bottom plate receiver 252 and the side wall 255 are deformed to absorb the impact when they come into contact.

  On the other hand, the movement of the object 3 in the left-right direction when the earthquake occurs is suppressed by the caster 2 coming into contact with the side plates 243 of the rails 240L and 240R. Further, since the side plate 243 is provided with the rail cushioning material 248, the impact when the caster 2 collides with the side plate 243 or the like is absorbed.

  Further, when the object 3 is lifted due to the caster 2 colliding with the first stopper 260, the second stopper 263, the side plate 243, or the like, or receiving the force in the vertical direction of the earthquake, it is shown in FIG. 31 (b). Thus, since the guide member 244 is in contact with the extending portion 232 or the engaging portion 233 of the mounting member 230, further lifting of the object 3 in the upward direction orthogonal to the floor surface is suppressed. As a result, the object 3 can be prevented from falling off the seismic isolation system 200.

  Note that the attachment member 230 and the guide member 244 may be configured to deform when subjected to a large load, and may be configured to absorb an impact applied to the object 3 when an earthquake occurs. Specifically, it can be realized by forming the attachment member 230 and the guide member 244 with a material having appropriate strength, and adjusting the plate thickness and area of the attachment member 230 and the guide member 244.

  Moreover, the 1st sticking member 271 and the 2nd sticking member 273 of the sticking part 270 mentioned above are extended in an up-down direction, are elastically deformed, and thereby buffer the lifting force. Since the reinforcing plate 272 is arranged between the first sticking member 271 and the second sticking member 273, the sticking portion 270 has a large buffering effect of the upward lifting force. This is considered to be a result of an increase in the amount of elastic deformation of the pasting part 270 as a whole compared to a configuration without the reinforcing plate 272.

  Moreover, the 1st sticking member 271 and the 2nd sticking member 273 are divided | segmented and attached to the up-down direction. In this case, compared with the case where the 1st sticking member 271 or the 2nd sticking member 273 of the same area comprised by 1 sheet | seat without dividing | segmenting to an up-down direction can make a buffer effect larger. This is considered to be a result of increasing the amount of elastic deformation of the entire pasting portion 270 by attaching the first pasting member 271 and the second pasting member 273 in the vertical direction.

  Further, the adhesive elastic member 221 and the elastic member 254 provided on the connecting member 220 and the base 250 reduce the force transmitted to the entire seismic isolation system 200 and the object 3 due to the earthquake.

  In the seismic isolation system 200 configured as described above, when the earthquake occurs, the seismic isolation action generated between the rails 240L and 240R and the base 250, when the caster 2 contacts the first stopper 260 and the second stopper 263, The shocks applied to the object 3 are prevented by the buffering by the stopper cushioning materials 262 and 265, the cushioning by the rail cushioning material 248, and the cushioning action by the elastic members 221 and 254 attached to the floor surface. Therefore, it is possible to suppress the unpredictable movement of the object 3, the occurrence of damage to the surroundings and the object 3 due to the jumping out of accessories, the occurrence of a failure due to the object 3 falling over or receiving a strong impact.

  Further, since the plate portion 231 of the attachment member 230 is sandwiched from both sides in the front-rear direction by the sandwiching portion 274 of the reinforcing plate 272, movement in the front-rear direction is limited. Therefore, it becomes difficult to add a twist between the plate portion 231 and the reinforcing plate 272. The second sticking member 273 may be easily detached by twisting. However, twisting is difficult to be applied between the plate portion 231 and the reinforcing plate 272, so that twisting is difficult to be applied to the second sticking member 273. As a result of the plate portion 231 becoming difficult to be detached from the reinforcing plate 272, it is possible to suppress the attachment member 230 from being detached from the object 3.

  Further, since the reinforcing plate 272 has a U-shaped cross section together with the sandwiching portion 274, the rigidity of the reinforcing plate 272 is increased, and even if a load is applied when an earthquake occurs, the reinforcing plate 272 is damaged and the mounting member 230 is removed. It can suppress that it remove | deviates from the target object 3. FIG.

  Furthermore, even if the object 3 has a laminated structure including the first layer 3A and the second layer 3B, the first sticking member 271 is attached to the first layer 3A and the second layer 3B, respectively. Even if the object 3 receives a lifting force when an earthquake occurs, it is possible to suppress the separation of the first layer 3A and the second layer 3B. As a result, only the second layer 3B falls and damages the surroundings. Giving can be suppressed.

  In addition, since the base 250 includes the base extending member 257, even when a load in the vertical and horizontal directions is applied to the object 3 due to an earthquake, the base 250 is prevented from being lifted, and the object 3 is lifted and falls. The base 250 can be prevented from peeling off the floor surface. This can be explained as follows.

  When the object 3 moves and a load is applied to the base 250 when an earthquake occurs or the like, the base 250 is lifted so as to rotate about the end in the direction orthogonal to the front-rear direction (the left-right direction in FIG. 24). I will try. At this time, since the base 250 includes the base extending member 257, the rotation shaft changes to the end portion of the base extending member 257 in the left-right direction.

  The force necessary for the object 3 to rotate increases as the distance from the center of gravity of the object 3 to the both ends increases. In the base 250 according to the present embodiment, the base extension member 257 forms a rotation axis at a position away from the center of gravity of the object 3, so that the object 3 becomes difficult to rotate. As a result, the base 250 is lifted from the floor surface. It becomes difficult, and the lifting of the object 3 can be suppressed.

  In recent offices, there is an increasing number of cases where carpets are laid on the floor surface. In this case, even if the adhesive strength of the elastic member 254 that fixes the base 250 and the carpet on the floor surface is strong, If the stickiness is weak, there is a risk that the carpet will be lifted when an earthquake occurs. However, since the base extending member 257 described above can suppress the lifting of the object 3 without depending on the carpet, the floor surface, and the adhesive strength, it is possible to reduce the risk of the object 3 falling due to peeling of the carpet.

  Further, in the above-described seismic isolation system 200, the frictional force generated between the rail 240 and the base 250 can be easily changed by replacing the rail friction member 246. Therefore, the physical properties (weight and center of gravity) of the object 3 can be changed. It is possible to set an appropriate frictional force according to the position, etc., and high seismic isolation performance can be obtained.

  Further, when the object 3 is installed in the seismic isolation system 200, the caster 2 and the seismic isolation system 200 are fixed by restricting the movement of the caster 2 by the first stopper 260 and the second stopper 263. Has been. Therefore, the object 3 can be moved from the seismic isolation system 1 by removing the first stopper 260 from the groove 245A or the second stopper 263 from the groove 245B, and the object 3 can be easily installed and installed. Can be released.

  By the way, in today's general office, there are many cases where free access (construction that can be wired under the floor) is performed, and 60% or more of the above-mentioned free access floor is the national average. Fixing things has become even more difficult. It is said that even floors other than free access are not strong enough to fix objects exceeding 100kg in weight unless reinforcement work other than anchor bolts is performed.

  Also, if the target object is an OA device or medical device with a caster, there is a high need for use as part of business continuity (BCP) immediately after the earthquake has stopped, so the impact of the earthquake is more than just a fall prevention. It is required to increase the probability that the object can be used normally after an earthquake, but if it is firmly fixed with anchor bolts etc., even if the object does not fall Due to the large impact on the object, normal use of the object is difficult.

However, since the seismic isolation system 200 of the above embodiment is intended to reduce the impact transmitted to the object 3 when an earthquake occurs, it does not need to be firmly fixed to the floor using anchor bolts or the like. A big impact is applied to the object 3, and business continuity (BCP) after the earthquake can be improved.
[Usage example of this embodiment]
FIG. 33 shows a state in which the seismic isolation system 200 of this embodiment is applied to the multi-function device 5 having functions such as copying, printer, and FAX as the object 3. The multi-function device 5 has a laminated structure that can be separated between the paper cassettes 5A and 5B, and the pasting portion 270 is attached across both. The reinforcing plate 272 of the sticking portion 270 is bent inward so that the tip of the sandwiching portion 274 (the end opposite to the multifunction device 5) holds the attachment member 230.

  A damper 258 is attached to the longitudinal end of the base 250. The damper 258 absorbs the shock when the rail 240 comes into contact with an earthquake or the like, and prevents the user from touching the end of the base 250 and getting injured even when the earthquake is not occurring. .

  The seismic isolation system 200 suppresses the multifunction machine 5 from falling over and the paper cassettes 5A and 5B from jumping out when an earthquake occurs. Further, since the pasting portion 270 is attached across the paper cassettes 5A and 5B, it is possible to prevent the upper side of the paper cassette 5A in the multifunction machine 5 from falling over due to separation therebetween.

The perspective view which shows the seismic isolation system of Example 1 Perspective view showing shock absorber Perspective view showing rail Rail cross section Perspective view showing the base Perspective view showing stopper Perspective view showing mounting member Side view showing the state where the object is installed in the seismic isolation device Perspective view showing floor friction member The figure which shows the modification of Example 1. The figure which shows the modification of Example 1. The perspective view which shows the seismic isolation apparatus of Example 2. Perspective view showing mounting member Side view showing floor installation members The perspective view which shows the seismic isolation system of Example 3 Side view showing the mounting member Top view showing the affixed part Perspective view showing affixing part The perspective view which shows a deformation | transformation part. Perspective view showing rail Perspective view showing affixing part The figure which shows the modification of Example 3. The figure which shows the modification of Example 3. The perspective view which shows the seismic isolation system of Example 4 Perspective view showing shock absorber Perspective view showing rail Perspective view showing the base A perspective view showing the first stopper A perspective view showing the second stopper Perspective view showing mounting member Side view showing the state where the object is installed in the seismic isolation device Top view showing the affixed part Perspective view showing usage example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Seismic isolation system, 2 ... Caster, 3 ... Object, 3A ... 1st layer, 3B ... 2nd layer, 4 ... Object, 5 ... Multi-function machine, 5A, 5B ... Paper cassette, 10 ... Shock absorber, DESCRIPTION OF SYMBOLS 20 ... Connecting member, 21 ... Elastic member, 30 ... Mounting member, 31 ... Plate part, 32 ... Pasting member, 33 ... Extension part, 34 ... Roller, 35 ... Deformation part, 40 ... Rail, 41 ... Rail bottom plate, 42 ... Loading surface, 43 ... Side plate, 44 (44A, 44B) ... Guide member, 45 ... Groove, 46 ... Rail friction member, 47 ... Floor friction member, 50 ... Base, 51 ... Base bottom plate, 52 ... Bottom plate receiver, 53 ... one end, 54 ... elastic member, 60 ... stopper, 61 ... plate-like member, 62 ... stopper cushioning material, 70 ... leg, 71 ... movement limiting member, 101 ... seismic isolation device, 102 ... caster, 103 ... object, 104 ... Loading surface, 105 ... Floor installation 106, floor extending member, 107, end portion, 108, end portion, 110, mounting member, 111, plate portion, 112, sticking member, 113, extending portion, 114, engaging portion, 120 ... Guide member 121 ... Vertical plate 122… Horizontal plate 123… Suspension plate 141… First sticking member 142… Reinforcement plate 143… Second sticking member 144… Clamping portion 150… Rail cushioning material 160… Base extension member, 200 ... Seismic isolation system, 210 (210L, 210R) ... Shock shock absorber, 220 ... connecting member, 221 ... elastic member, 230 ... mounting member, 231 ... plate portion, 232 ... extension portion, 233 ... Engagement part, 240 ... rail, 240L ... rail, 240R ... rail, 241 ... rail bottom plate, 242 ... loading surface, 243 ... side plate, 244 ... guide member, 245A ... groove, 245B ... groove, 246 ... rail wear 247 ... Floor friction member, 248 ... Rail cushioning material, 250 ... Base, 251 ... Base bottom plate, 252 ... Bottom plate receiver, 253 ... End, 254 ... Elastic member, 255 ... Side wall, 256 ... End, 257 ... Base extension member, 258 ... damper, 260 ... first stopper, 261 ... plate-like member, 262 ... stopper cushioning material, 263 ... second stopper, 264 ... shaft, 265 ... stopper cushioning material, 266 ... bracket, 270 ... pasting 271 ... 1st sticking member, 272 ... Reinforcing plate, 273 ... 2nd sticking member, 274 ... Clamping part

Claims (8)

A rail having a loading surface on which a caster of an object is placed;
A base installed on the floor and holding the rail movably in a predetermined direction along the floor;
A stopper attached to the rail and restricting movement of the caster in the predetermined direction;
A rail friction member attached to at least one of the rail or the base and contacting the other different from the one when the rail and the base slide.
The rail is provided with a drop-off preventing portion for preventing the caster from dropping from the rail at an end of the loading surface in a direction intersecting the predetermined direction, and the end in the predetermined direction is the end of the caster. It is formed to be movable between the floor surface and the loading surface,
The seismic isolation device according to claim 1, wherein energy generated when the object moves in the predetermined direction is deprived by friction generated when the rail and the base slide . The seismic isolation device according to claim 1, wherein the base is attached to the floor surface by an elastic member having elasticity arranged between the base and the floor surface. The stopper is in a position facing the caster, seismic isolation device according to claim 1 or claim 2, characterized in that it comprises a stopper buffer material is elastically deformed upon contact with the caster. The relief according to any one of claims 1 to 3, wherein the drop-off prevention unit includes a rail cushioning material that is elastically deformed when contacting the caster at a position facing the caster. Seismic device. An attachment member attached to the object;
A guide member that is provided on the rail and guides the movement of the mounting member in the predetermined direction by engaging with the mounting member that is mounted on the object in a state where the caster is on the loading surface. And comprising
The guide member, when engaged with said mounting member, any one of claims 1, wherein the inhibit movement of the mounting member with respect to the direction perpendicular to at least the floor of the claims 4 1 Seismic isolation device as described in the paragraph . The seismic isolation device according to claim 5 , wherein the attachment member is attached to the object by an elastic sticking portion disposed between the attachment member and the object. The sticking part, at least, claim wherein the first adhering member having elasticity, and a reinforcing plate, a second adhering member having elasticity, that a is made by arranging in layers in this order 6 The seismic isolation device described in 1.   The object comprises a paper cassette;
  The base is disposed such that the predetermined direction is a drawing direction of the paper cassette.
  The seismic isolation device according to any one of claims 1 to 7, characterized in that