JP3771920B2 - Furniture fall prevention device - Google Patents

Description

  The present invention relates to a furniture overturn prevention device that prevents furniture from falling forward during an earthquake.

Conventionally, furniture fall prevention devices that prevent furniture from falling in the event of an earthquake have been arranged by placing a stretchable column member between the ceiling and the top plate of the furniture. The thing which prevents falling forward is devised (for example, refer patent document 1).
JP-A-9-84648

  However, when the support member described in Patent Document 1 is arranged between the ceiling and the furniture used in ordinary houses, the support member breaks through the ceiling in the event of an earthquake, and the furniture is surely toppled. There is a problem that cannot be prevented.

  In view of the above problems, an object of the present invention is to propose a furniture overturn prevention device that can reliably prevent furniture overturning regardless of the strength and form of the ceiling.

  In order to solve the above problems, the present invention is a furniture overturn prevention device for preventing furniture from tipping forward due to an earthquake, holding the rolling element and the rolling element at a position higher than the floor surface, From this state, in conjunction with the backward tilting operation of the furniture, the device that causes the rolling element that has been held to sink into the gap generated between the front lower end of the furniture and the floor surface by rolling under its own weight. And a main body.

In the present invention, the plurality of rolling elements having different outer diameters are held in the apparatus main body in a state in which rolling can be started in order from a small diameter . With this configuration, when the furniture is slightly tilted due to an earthquake, a small rolling element sinks between the front lower end of the furniture and the floor, and when the furniture is further tilted from this state, a larger rolling element is moved forward of the furniture. Dive between the bottom edge and the floor. Therefore, every time the rolling lower body floats between the front lower end of the furniture and the floor surface, the furniture tilts back and forth more gradually, so that the furniture can be more reliably tilted forward. Can be prevented.

  In the present invention, the apparatus main body extends toward the front lower end portion of the furniture from the rolling body holding portion and the rolling body holding portion that holds the rolling body at a position higher than the floor surface at the front position of the lower end portion of the furniture. A fixed side member provided with a rolling path, and a movable side member interlocking with the movement of the lower front end of the furniture, the movable side member being connected to the rolling element holding portion. A stopper part that restricts rolling to the moving path is provided, and the stopper part rolls the rolling element to the rolling path by the movement of the movable side member when the front lower end of the furniture is lifted. It is preferable to move to an allowable position.

  In the present invention, the rolling path is formed in a plate-like portion of the fixed-side member, and the movable-side member has a hinge mechanism between the tip sides of the plate-like portion of the fixed-side member. And the apparatus main body is in a state of being overlapped so that the plate-like portion of the fixed-side member is located below and the plate-like portion of the movable-side member is located above The stopper part restricts rolling of the rolling element held by the rolling element holding part to the rolling path in the overlapping state. It is preferable that when the movable side member is separated from the plate-like portion of the fixed side member, rolling of the rolling element held by the rolling element holding portion to the rolling path is started.

  In this invention, it is preferable that the said apparatus main body is provided with the urging means which urges | biases the said movable side member toward the furniture while urging | biasing the said fixed side member to the floor surface side. If comprised in this way, while a movable side member will always interlock | cooperate with the raising operation | movement of the front lower end part of furniture, a fixed side member will always be pressed toward a floor surface. Therefore, the fixed side member does not need to be fixed to the floor surface by a method such as adhesion or screwing.

  In the present invention, a locking mechanism that can be restrained in a state in which the plate-like portion of the fixed-side member and the plate-like portion of the movable-side member are overlapped is configured between the fixed-side member and the movable-side member. It is preferable that If comprised in this way, even if it remove | releases a hand, the plate-shaped part of a fixed side member and the plate-shaped part of a movable side member will overlap, and the state by which the rolling element was hold | maintained at the fixed side member can be maintained. Therefore, the furniture fall prevention device can be easily set, and the earthquake countermeasure can be completed simply by releasing the lock mechanism.

  The furniture overturn prevention device of the present invention, when the furniture tilts backward, the rolling element from the apparatus body starts rolling by its own weight toward the gap generated between the front lower end of the furniture and the floor surface, It is a furniture overturn prevention device that has a completely new principle of sinking between the front lower end of the furniture and the floor surface, and can reliably prevent furniture overturn regardless of the strength and form of the ceiling. In addition, the furniture overturn prevention device of the present invention only has to be set at the front lower end of the furniture, and therefore has the advantage of being easy to set. Moreover, since the furniture overturn prevention device of the present invention has a simple structure, it can be reliably operated and provided at low cost.

  An example of a furniture overturn prevention device to which the present invention is applied will be described with reference to the drawings.

(overall structure)
1 (a), (b), and (c) are schematic perspective views showing a standby state of the furniture overturn prevention device according to the present invention, the movable member is lifted to show the internal state in this state, and FIG. 3 is an explanatory view showing a part of a fixed side member and a movable side member by cutting out, and a schematic perspective view showing an operating state.

  As shown in FIGS. 1A, 1 </ b> B, and 1 </ b> C, the furniture overturn prevention device 1 according to the present embodiment includes a rolling element 2 and an apparatus main body 3. It is comprised from the fixed side member 4 installed in the side, and the movable side member 5 interlock | cooperated with the motion of the front lower end part of furniture. Although the material of the stationary member 4 and the movable member 5 is not limited, for example, a resin molded product can be used.

  The fixed-side member 4 includes a rolling element holding portion 44 in which a rolling element storage recess 45 that holds the rolling element 2 at a position higher than the floor surface 10 at a position in front of the lower end of the furniture, and a rolling element holding portion 44. A rolling path 40 extending from the lower end of the rolling element housing recess 45 through the step 49 toward the front lower end of the furniture is composed of a plate-like portion 41 formed in a groove shape.

  The rolling element housing recess 45 is largely recessed while forming a concave curved surface upward from a boundary portion with the rolling path 40 located on the lower end side. For this reason, in this embodiment, the rolling element housing recess 45 is in a state in which a plurality of rolling elements 2 having different outer diameters can be started to roll into the rolling path 40 in order from the smallest diameter as the rolling element 2. It can be held. In this embodiment, as the small-diameter rolling element 21, for example, a 12φ cylindrical or round bar is used, and as the large-diameter rolling element 22, for example, a 20φ cylindrical or round bar is used. . In addition, although a spherical body can also be used as the rolling element 2, in this form, the cylindrical or round bar-shaped thing is used from the surface of control of a rolling direction and a load. As the rolling element 21, for example, a resin or metal one is used.

  The movable side member 5 includes a plate-like portion 51 whose front ends are connected to the plate-like portion 41 of the fixed-side member 4 via the hinge mechanism 6, and a stopper portion 54 that rises vertically from the plate-like portion 51. The upper end portion 56 is bent at a right angle from the upper end portion of the stopper portion 54 and has an L-shaped cross section.

  A concave portion 46 into which the upper end portion 56 of the movable side member 5 is fitted is formed on the upper surface of the rolling element holding portion 44 of the fixed side member 4, and the plate-like portion 41 of the fixed side member 4 and the plate of the movable side member 5 are formed. The upper end portion 56 of the movable side member 5 is completely fitted into the concave portion 46 of the fixed side member 4 in a state where the shape portion 51 is vertically stacked. Further, in a state where the plate-like portion 41 of the fixed-side member 4 and the plate-like portion 51 of the movable-side member 5 are vertically stacked, the stopper portion 54 of the movable-side member 5 is used for storing the rolling elements of the rolling-element holding portion 44. The recess 45 is closed, and rolling of the rolling element 2 held in the rolling element storage recess 45 to the rolling path 40 is restricted.

  Such a state is a standby state. In this state, when the movable side member 5 is lifted, the stopper portion 54 is moved upward, and the rolling member 2 is moved from the recess 45 for storing the rolling member to the rolling path 40 of the rolling member 2. Allow movement.

  In the fixed side member 4, a cylindrical protrusion 461 stands upright from the bottom surface of the recess 46, and the coil spring 11 is mounted around the protrusion 461. In the coil spring 11, the lower end portion is fixed to the fixed side member 4 side while the lower end portion is mounted so as to surround the protrusion 461, while the upper end portion is on the lower surface of the upper end portion 56 of the movable side member 5. It is fitted and held in a receiving portion 561 formed of a formed round hole. Further, the protrusion 461 and the coil spring 11 are completely fitted to the receiving portion 561 of the movable side member 5 in a state where the plate-like portion 41 of the fixed side member 4 and the plate-like portion 51 of the movable side member 5 are vertically stacked. It comes to include. In this embodiment, the coil spring 11 functions as a biasing means that biases the fixed side member 4 toward the floor surface 10 and biases the movable side member 5 toward the furniture 15.

  In the fixed side member 4, through holes 71 and 72 are formed in the upper end portion of the rolling element holding portion 44 sandwiching the recess 46, and a through hole 75 is also formed in the upper end portion of the movable side member 5. In the state where the plate-like portion 41 of the fixed-side member 4 and the plate-like portion 51 of the movable-side member 5 are vertically stacked, the upper end portion 56 of the movable-side member 5 is completely fitted into the recess 46 of the fixed-side member 4. And each through-hole 71,72,75 communicates. Therefore, by simply inserting the lock pin 70 here, the plate-like portion 41 of the fixed side member 4 and the plate-like portion 51 of the movable side member 5 can be constrained in a vertically stacked state. The restraint state can be released. In the present embodiment, the plate-like portion 41 of the fixed side member 4 and the movable side member 5 are interposed between the fixed side member 4 and the movable side member 5 by the through holes 71, 72, 75 and the lock pin 70. A lock mechanism 7 is configured that can be restrained in a state in which the plate-like portion 51 is overlapped.

  Further, projections 511 and 512 are formed on both sides of the plate-like portion 51 sandwiching the stopper portion 54 in the movable side member 5, while the rolling element housing recess 45 of the rolling element holding portion 44 is formed in the fixed side member 4. Guide grooves 441 and 442 into which the protrusions 511 and 512 are respectively fitted are formed on both sides of the sandwiching. In this embodiment, the projections 511 and 512 and the guide grooves 441 and 442 cause the movable side member 5 to rotate around the hinge mechanism 6 when the movable side member 5 is separated from the plate-like portion 41 of the fixed side member 4. A guide mechanism is configured to perform the movement.

(Operation example)
2 (a), 2 (b), and 2 (c) are explanatory views showing a method of using and a function of the furniture overturn prevention device 1 according to the present invention. 3 (a) and 3 (b) are explanatory views showing a method of using the furniture overturn prevention device according to the present invention, and an explanatory diagram showing an example when a design is applied to the furniture overturn prevention device.

  As shown in FIG. 1 (a), the furniture overturn prevention device 1 stores a small-diameter rolling element 21 below the rolling element storage recess 45 and a large-diameter rolling element 22 above the rolling element storage recess 45 before use. In this state, the plate-like portion 41 of the fixed-side member 4 and the plate-like portion 51 of the movable-side member 5 are vertically stacked, and the lock pin 70 is inserted into the through holes 71, 72, 75. deep. As a result, the apparatus main body 3 is restrained in this state by the lock mechanism 7. In this state, the coil spring 11 is in a compressed state.

  Next, with the double-sided tape (not shown) attached to the upper surface of the plate-like portion 51 of the movable side member 5, the front lower end portion 16 of the furniture 15 is lifted from the floor surface 10, and the front lower end portion 16 of the furniture 15. In the gap formed between the floor 10 and the floor 10, a portion where the plate-like portion 41 of the stationary member 4 and the plate-like portion 52 of the movable member 5 are vertically stacked is inserted. 2A, when the front lower end 16 of the furniture 15 is lowered, the front lower end 16 of the furniture 15 and the upper surface of the plate-like portion 51 of the movable member 5 are fixed with a double-sided tape. . Then, the lock pin 70 is pulled out. With the above operation, the setting of the furniture overturn prevention device 1 is completed. Here, as shown in FIG. 3A, the furniture overturn prevention device 1 is disposed on both the left and right sides of the front lower end portion 16 of the furniture 15, and the position is a position where the furniture 15 has a lower frame. .

  In the state where the furniture fall prevention device 1 is set in this way, an earthquake occurs, and the furniture 15 is tilted rearward and the front lower end 16 of the furniture 15 is lifted from the floor 10 as shown in FIG. Then, the movable member 5 rotates around the hinge mechanism 6 and the stopper portion 54 moves upward. At that time, since the fixed side member 4 is biased to the floor surface 10 by the coil spring 11, even if the movable side member 5 rotates upward in conjunction with the furniture 15, the fixed side member 4 It remains pressed against the surface 10 and does not follow. Therefore, among the rolling elements 2 stored in the rolling element storage recess 45 of the rolling element holding portion 44, the small diameter rolling element 21 starts rolling toward the rolling path 40 by its own weight, and the front of the furniture 15. It sinks into a gap 18 generated between the lower end portion 16 and the floor surface 10. As a result, the furniture 15 is tilted backward, so that it does not fall forward. In this state, the lower end portion of the stopper portion 54 of the movable side member 5 slightly covers the rolling element storage recess 45 of the rolling element holding portion 44. Do not roll to road 40.

  In addition, it is assumed that the furniture 15 is tilted backward from this state as shown in FIG. At that time, since the furniture 15 has already been inclined backward by the small-diameter rolling element 21 that has already entered the space between the front lower end portion 16 of the furniture 15 and the floor surface 10, An even larger gap 19 is generated between the lower end portion 16 and the floor surface 10. Accordingly, this time, the large-diameter rolling element 2 starts rolling toward the rolling path 40 due to its own weight, and pushes the small-diameter rolling element 2 away from the back so that the front lower end 16 of the furniture 15 and the floor surface 10 It sinks into the gap 19 generated between them. As a result, the furniture 15 is further tilted rearward so that it does not fall forward.

(Main effects of this form)
As described above, the furniture overturn prevention device 1 to which the present invention is applied is directed toward the gaps 18 and 19 generated between the front lower end 16 of the furniture 15 and the floor surface 10 when the furniture 15 tilts backward. Thus, the furniture overturn prevention device 1 having a completely new principle that the rolling element 2 starts rolling by its own weight from the device main body 3 and sinks between the front lower end portion 16 of the furniture 15 and the floor surface 10, Regardless of the strength and form of the ceiling, the furniture 15 can be reliably prevented from falling.

  Moreover, the furniture overturn prevention device 1 to which the present invention is applied only needs to be set at the front lower end 16 of the furniture 15, so that there is an advantage that the setting is easy. Moreover, since the furniture fall prevention apparatus 1 has a simple structure, it can operate reliably and can be provided at low cost. Furthermore, since the clearance required for setting the furniture fall prevention device 1 is about several millimeters, there is no sense of incongruity even if the furniture fall prevention device 1 is set.

  Further, since the plurality of rolling elements 2 having different outer diameters start rolling from the apparatus body 3 in order from the smallest diameter, when the furniture 15 is tilted by an earthquake, the small rolling element 21 is located at the lower front end of the furniture 15. When the furniture 15 is further tilted from the state 16 and the floor surface 10, and the furniture 15 further tilts from this state, the larger rolling element 2 sinks between the front lower end portion 16 of the furniture 15 and the floor surface 10. Accordingly, each time the rolling element 2 sinks between the front lower end portion 16 of the furniture 15 and the floor surface 10 because the front lower end portion 16 of the furniture 15 is lifted, the furniture 15 is gradually inclined backward. It can prevent more reliably falling forward.

  Further, the apparatus main body 3 includes a coil spring 11 that urges the fixed side member 4 toward the floor surface 10 and urges the movable side member 5 toward the furniture. Even when 5 is interlocked with the lifting operation of the front lower end portion 16 of the furniture 15, the stationary member 4 is always pressed against the floor surface 10. Therefore, it is not necessary to fix the fixed side member 4 to the floor surface 10 by a method such as adhesion or screwing. Further, since the movable side member 5 is biased toward the furniture 15 by the coil spring 11, the double sided tape that bonds the movable side member 5 and the furniture 15 does not work, or a double sided tape is used. Even if there is not, the movable member 5 is always interlocked with the lifting operation of the furniture 15. Therefore, the furniture overturn prevention device 1 of this embodiment operates reliably.

  Further, since the lock mechanism 7 is configured between the fixed side member 4 and the movable side member 5, the fixed side member 4 is urged toward the floor surface 10 and the movable side member 5 is directed toward the furniture. Even when the coil spring 11 for biasing is provided, the plate-like portion 41 of the fixed-side member 4 and the plate-like portion 51 of the movable-side member 5 overlap each other, and the rolling element 2 is held by the fixed-side member 4. The state can be maintained even if the hand is released. Therefore, the furniture fall prevention device 1 can be easily set, and the earthquake countermeasure is completed simply by releasing the lock mechanism 7.

  Furthermore, the apparatus main body 3 has a guide mechanism for reliably rotating the movable side member 5 around the hinge mechanism 6 when the movable side member 5 is separated from the plate-like portion 41 of the fixed side member 4. 12 is configured. Therefore, in this embodiment, the furniture overturn prevention device 1 can be operated more reliably.

[Other embodiments]
In the furniture overturn prevention device 1 to which the present invention is applied, the rolling element holding portion 44 of the stationary member 4 is only exposed at the front lower end portion 16 of the furniture 15 in the set state, and may be disposed in the home. Even if placed in the office, there is no sense of incongruity and it does not get in the way.

  Further, as shown in FIG. 3 (b), the rolling element holding portion 44 of the fixed member 4 is safe because it has a hemispherical shape and has no angular portion. Moreover, if a pattern such as a ladybug is attached to the outer surface, for example, there is no sense of incongruity even when used in the home.

Furthermore, if a rubber material or the like is attached to the bottom surface of the fixed side member 4 as necessary, the floor surface 10 can be prevented from being damaged. Furthermore, in the above embodiment, the rolling is the number of the moving object 2 is set to two, it may be three or more.

  In the furniture overturn prevention device of the present invention, when the furniture tilts backward, the rolling element starts rolling by its own weight from the device body toward the gap generated between the front lower end of the furniture and the floor surface, Since a completely new principle of sinking between the front lower end of the furniture and the floor surface is adopted, it is possible to reliably prevent the furniture from falling over regardless of the strength and form of the ceiling. In addition, the furniture overturn prevention device of the present invention only has to be set at the front lower end of the furniture, and therefore has the advantage of being easy to set. Moreover, since the furniture overturn prevention device of the present invention has a simple structure, it can be reliably operated and provided at low cost.

(A), (b), (c) is a schematic perspective view showing the standby state of the furniture overturn prevention device according to the present invention, and the movable side member is lifted and fixed to show the internal state in this state. It is explanatory drawing which cuts off a part of side member and a movable side member, and a schematic perspective view which shows an operation state. (A), (b), (c) is explanatory drawing which shows the usage method and operation | movement of the furniture fall prevention apparatus which concerns on this invention. (A), (b) is explanatory drawing which shows the usage method of the furniture fall prevention apparatus which concerns on this invention, and explanatory drawing which shows an example at the time of giving design to this furniture fall prevention apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Furniture fall prevention apparatus 2 Rolling body 3 Apparatus main body 4 Fixed side member 5 Movable side member 6 Hinge mechanism 7 Lock mechanism 10 Floor surface 11 Coil spring (biasing means)
12 Guide Mechanism 15 Furniture 16 Front Lower Lower End 18, 19 Clearance 21 between Furniture Lower Front End and Floor 21 Small Diameter Rolling Element 22 Large Diameter Rolling Element 40 Rolling Path 41 Plate-shaped Portion 44 of Fixed Side Member Moving body holding portion 45 Rolling body housing recess 51 Movable member plate-like portion 54 Stopper portion

Claims (5)

A furniture overturn prevention device that prevents furniture from tipping forward due to an earthquake,
The rolling element and the rolling element are held at a position higher than the floor surface, and in this state, in conjunction with the backward tilting operation of the furniture, toward the gap generated between the front lower end of the furniture and the floor surface. , possess a device body which submerge the rolling elements that held by the rolling by its own weight,
A furniture overturn prevention device characterized in that a plurality of the rolling elements having different outer diameters are held in the device main body in a state in which rolling can be started in order from a small diameter . In claim 1,
The apparatus main body includes a rolling element holding portion that holds the rolling element at a position higher than the floor surface at a position in front of the lower end portion of the furniture, and a rolling path that extends from the rolling element holding portion toward the front lower end portion of the furniture. A fixed side member provided, and a movable side member that interlocks with the movement of the front lower end of the furniture,
The movable side member includes a stopper portion that restricts rolling of the rolling element held by the rolling element holding portion to the rolling path,
The stopper portion is moved to a position allowing the rolling element to roll to the rolling path by the movement of the movable side member when the front lower end of the furniture is lifted up. apparatus. In claim 2,
The rolling path is formed in a plate-like portion of the fixed-side member, and the movable-side member is connected to the plate-like portion of the fixed-side member via a hinge mechanism between the distal ends. A plate-shaped part,
The apparatus main body is placed between the front lower end of the furniture and the floor surface in a state where the plate-like portion of the fixed-side member is positioned below and the plate-like portion of the movable-side member is positioned above. Inserted and fixed
In the overlapped state, the stopper portion restricts rolling of the rolling elements held by the rolling element holding portion to the rolling path, and the movable side member is a plate of the fixed side member. The furniture overturn prevention device is characterized in that rolling of the rolling element held by the rolling element holding part to the rolling path is started when the rolling element is separated from the shaped part . In claim 3,
The apparatus main body includes an urging means for urging the fixed side member toward the floor and urging the movable side member toward the furniture. In claim 4,
Between the fixed side member and the movable side member, there is configured a lock mechanism that can restrain the plate-like portion of the fixed-side member and the plate-like portion of the movable side member in an overlapped state. Furniture fall prevention device characterized by.

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