JP7157441B2 - Object support device - Google Patents

Description

The present invention relates to an object support device that supports an object. In particular, it relates to an object supporting device focusing on a seismic isolation function against vertical vibrations.

As a horizontal object support device (for example, a seismic isolation table), conventionally, several configurations have been devised. A horizontal seismic isolation table can be realized relatively easily. Since the weight of the object supported by the seismic isolation table is supported by the XY table, bearings, etc., the spring constant in the horizontal direction can be set relatively small to respond to horizontal acceleration vibrations during an earthquake. For example, a mechanism such as a bearing supports a vertical load, suppresses resistance to horizontal vibration, and effectively exerts a seismic isolation function.

On the other hand, there is a demand for an object supporting device for vertical vibration that has a simple configuration and can be realized at low cost.

Waves with various periods are superimposed on earthquake waves, and among them, wave components with a period of about 0.5 to 1.0 seconds are prominent. By setting the vertical natural period of the object support device to be greater than 1 second, resonance of the object support device with respect to seismic waves can be avoided, and the seismic isolation effect can be increased. As the vertical natural period of the object support device is increased to 1 second, 2 seconds, 3 seconds, and 5 seconds, the seismic isolation effect increases. It is preferable to make it at least about 2 seconds.

In order to make the vertical natural period of the object support device about 2 seconds, it is necessary to soften the vertical spring. Here, in order to set the natural period of the object support device in the vertical direction to about 2 seconds, if the spring constant is constant, a static deflection of about 1 m is required regardless of the mass of the object. is known. When an object is gently placed on the seismic isolation device in an unloaded state, it sinks about 1 m and balances. The object support device has a height of about 1 m to several tens of cm. If the vertical natural period of the seismic isolation device is set to 3 seconds or 5 seconds, the static deflection becomes larger.

In particular, as an object support device against vertical vibration, it is preferable to use a seismic isolation device having non-linear spring characteristics with extremely small static deflection under a certain load and a soft spring constant above a certain load.
For example, when an object is placed on a table, it statically flexes to one position and statically hangs in its static hanging position. When an earthquake occurs, it vibrates up and down around the static suspension position.

Applicant of the present application, et al., ``a table on which an object is placed and which moves up and down with respect to a base, and a spring installed between the table and the base, which moves vertically in accordance with the up-and-down movement of the table. a vertical spring member that generates a force; a connecting member that connects the table and the base and has a horizontal movable portion that moves in the horizontal direction as the table moves vertically; a horizontal direction spring member that is engaged with the movable portion and generates a spring force in the horizontal direction according to the movement of the horizontal movable portion, wherein the connecting members increase the distance between each other as the table moves up and down. A pair of link members each having the variable horizontal movable portion is provided, and one end of each of the pair of link members is rotatably engaged with the table. is connected to each of the horizontal movable parts."
The market wants to further improve the seismic isolation function of the object support device devised by the applicant.

SUMMARY OF THE INVENTION The present invention has been devised in view of the problems described above, and it is an object of the present invention to provide an object supporting device for supporting an object with a simple structure and improved seismic isolation function.

In order to achieve the above object, the object supporting device according to the present invention comprises a table on which the object is placed, a base supported by a foundation, and the table supported on the basis of the base. a table support mechanism, wherein the table support mechanism is a horizontal axis extending in a specific horizontal direction with respect to the other of the table or the base, a pair of left and right guides spaced apart along a specific horizontal axis a horizontal movement guide mechanism having a block and a pair of left and right guide rails for movably guiding the pair of left and right guide blocks along a pair of left and right tracks extending along the specific horizontal axis; and a vertical spring member that generates an upward spring force on the table as a center of rotation, and one of the upper end and the lower end is the center of rotation about one of the table and the base. and a pair of left and right links fixed rotatably around the center of rotation of the other end of the upper end or the lower end of the guide block. a horizontal direction spring member for applying a spring force to each of the pair of left and right links in a direction of approaching each other along the specific horizontal axis; and a vertical movement guide mechanism that guides the track so as to be movably movable, and the pair of left and right tracks extend so as to be biased in one direction in the vertical direction as the track transitions along the specific horizontal axis in directions separating from each other. , I assumed.

With the configuration of the present invention described above, the object can be placed on the table. A base is supported by the foundation. A table support mechanism supports the table on the basis of the base. The horizontal movement guide mechanism of the table support mechanism includes a pair of left and right guide blocks spaced apart along a specific horizontal axis extending in a specific horizontal direction with respect to the other of the table and the base. It has a pair of left and right guide rails for guiding the pair of guide blocks movably along a pair of left and right tracks extending along the specific horizontal axis. A vertical spring member of the table support mechanism generates an upward spring force on the table based on the base. A pair of left and right links of the table support mechanism allows one end of the upper end or the lower end to be rotatable about the center of rotation about one of the table and the base. The other end of the fixed upper end or the lower end is rotatably fixed to the guide block around the other rotation center which is the rotation center. A horizontal spring member of the table support mechanism applies a spring force to each of the pair of left and right links in a direction of approaching each other along the specific horizontal axis. A vertical movement guide mechanism of the table support mechanism suppresses relative horizontal movement of the table based on the base and guides the table vertically movably. The pair of left and right tracks extend along the specific horizontal axis so as to deviate to one side in the vertical direction as they transition along the specific horizontal axis.
As a result, by selecting the degree to which one of the pair of left and right tracks is biased in the vertical direction, the support characteristics of the table support mechanism can be selected according to the purpose, increasing the degree of freedom in design.

An object support device according to an embodiment of the present invention will be described below. The present invention includes any of the embodiments described below, or a combination of two or more of them.

Further, when the pair of right and left trajectories transition along a specific horizontal axis in directions away from each other, one of the upper end and the lower end of the link is located along the transition. Extends in a biased manner.
According to the configuration of the embodiment according to the present invention, when the pair of left and right tracks transition along the specific horizontal axis in the direction of separating from each other, the upper end or the lower end of the link is shifted along with the transition. It extends so as to be biased toward one of the ends.
As a result, by selecting the degree to which one of the pair of left and right tracks is biased in the vertical direction, the support characteristics of the table support mechanism can be selected according to the purpose, increasing the degree of freedom in design.

Also, the pair of left and right tracks extend along a concave curve.
With the configuration of the embodiment according to the present invention, the pair of left and right tracks extend along a concave curve.
As a result, by selecting the degree of curvature of the pair of left and right tracks, the support characteristics of the table support mechanism can be selected according to the purpose, increasing the degree of freedom in design.

Further, the pair of left and right tracks extend respectively along a pair of left and right curved lines having a predetermined concave curvature.
According to the configuration of the embodiment according to the present invention, the pair of left and right tracks extend respectively along a pair of left and right curved lines having a predetermined curvature.
As a result, by selecting the curvature of the pair of left and right tracks, the support characteristics of the table support mechanism can be selected according to the purpose, increasing the degree of freedom in design.

When the point at which a pair of left and right imaginary lines connecting the one rotation center and the other rotation center of the pair of left and right links when viewed horizontally so as to divide the left and right links into left and right is called a virtual intersection, When one end is the upper end, the center of the right curvature, which is the predetermined curvature of the right trajectory, which is the right trajectory of the pair of left and right trajectories, and the center of the right curvature of the pair of left and right trajectories The left curvature center, which is the center of the left curvature, which is the predetermined curvature of the left trajectory, which is the left trajectory, is positioned above the imaginary intersection as the upper and lower boundary, and one end is the lower end. In this case, the right curvature center, which is the center of the right curvature, which is the predetermined curvature of the right trajectory, which is the right trajectory of the pair of left and right trajectories, and the predetermined left trajectory, which is the left trajectory of the pair of left and right trajectories The left curvature center, which is the center of the left curvature, which is the curvature of
According to the configuration of the embodiment according to the present invention, a pair of left and right imaginary lines connecting the one rotation center and the other rotation center of the pair of left and right links when viewed horizontally so as to divide the pair of left and right links into left and right. A point of intersection is called a virtual intersection. When one end is the upper end, the center of the right curvature, which is the predetermined curvature of the right trajectory, which is the right trajectory of the pair of left and right trajectories, and the center of the right curvature of the pair of left and right trajectories The center of the left curvature, which is the predetermined curvature of the left trajectory, is located above the imaginary crossing point. When one end is the lower end, the right curvature center, which is the center of the right curvature, which is the predetermined curvature of the right trajectory, which is the right trajectory of the pair of left and right trajectories, and the pair of left and right trajectories The left curvature center, which is the center of the left curvature, which is the predetermined curvature of the left orbit, which is the left orbit, is located below the imaginary intersection as a vertical boundary.
As a result, the radius of curvature of the orbit can be lengthened, and the degree of freedom in design for the purpose of lengthening the period increases.

Further, a point at which a pair of left and right imaginary lines connecting the one rotation center and the other rotation center of the pair of left and right links when viewed horizontally so as to divide the pair of left and right links into left and right is called a virtual crossing point. Then, the right curvature center, which is the center of the right curvature, which is the predetermined curvature of the right trajectory, which is the right trajectory of the pair of left and right trajectories, is located on the left side with the virtual intersection as the boundary between the left and right, and the left trajectory is A left curvature center, which is the center of left curvature, which is a predetermined curvature of a left track, is located on the right side of the imaginary intersection as a left-right boundary.
According to the configuration of the embodiment according to the present invention, a pair of left and right links connecting the one rotation center and the other rotation center of each of the pair of left and right links when viewed horizontally so as to divide the pair of left and right links into left and right A point where the lines intersect is called a virtual intersection. The right curvature center, which is the center of the right curvature, which is the predetermined curvature of the right trajectory, which is the right trajectory of the pair of left and right trajectories, is located on the left side of the virtual intersection as a boundary between the left and right sides, and the left trajectory, which is the left trajectory, is located on the left side. The left curvature center, which is the center of the left curvature, which is the predetermined curvature of the track, is located on the right side of the imaginary intersection as the boundary between the left and right sides.
As a result, the degree of inclination of the orbit can be increased, increasing the degree of freedom in design.

Further, the one rotation center of each of the pair of left and right links is separated from each other by a predetermined separation distance when viewed horizontally so that the pair of left and right links are divided into left and right.
With the configuration of the embodiment according to the present invention, the one rotation center of each of the pair of left and right links is separated by a predetermined separation distance when viewed horizontally so as to separate the pair of left and right links into left and right.
As a result, the degree of freedom in design increases.

Further, when viewed horizontally so as to separate the pair of left and right links into the left and right, the one rotation center of each of the pair of left and right links coincides.
By the configuration of the embodiment according to the present invention,
When viewed horizontally so as to divide the pair of left and right links into left and right, the one rotation center of each of the pair of left and right links coincides.
As a result, the degree of freedom in design increases.

Further, the pair of left and right links intersect between the one rotation center and the other rotation center when viewed horizontally so as to divide the pair of left and right links into left and right.
With the configuration of the embodiment according to the present invention, the pair of left and right links intersect between the one rotation center and the other rotation center when viewed horizontally so as to divide the pair of left and right links into left and right.
As a result, the degree of freedom in design increases.

Further, the pair of left and right links intersect between the one rotation center and the other rotation center when viewed horizontally so as to divide the pair of left and right links into the left and right, and the pair of left and right links are divided into the respective The one rotation center and the other rotation center are rotatably connected at an intersecting portion sandwiched therebetween.
With the configuration of the embodiment according to the present invention, the pair of left and right links intersect between the one rotation center and the other rotation center when viewed horizontally so as to divide the pair of left and right links into left and right. The pair of left and right links are rotatably connected at points where they intersect and intersect between the one rotation center and the other rotation center.
As a result, the degree of freedom in design increases.

Further, the table support mechanism has a vertical movement guide mechanism that suppresses relative lateral movement of the table based on the base and guides the table so that it can move vertically, and the vertical movement guide mechanism One of the table and the base is fitted to the other of the table and the base, thereby suppressing the relative lateral movement of the table and guiding the table so that it can move vertically.
With the configuration of the embodiment according to the present invention, the vertical movement guide mechanism is such that one of the table and the base is fitted to the other of the table and the base, and relative horizontal movement of the table is achieved. is suppressed and guided so as to move freely in the vertical direction.
As a result, it is possible to suppress the relative horizontal movement of the table with a simple structure and to guide the table so that it can move freely in the vertical direction.

In order to achieve the above object, an object supporting device for supporting an object according to the present invention comprises a table on which the object is placed, a base supported by a base, and an N supporting the table on the basis of the base. a pair of left and right table support mechanisms arranged apart from each other along a specific horizontal axis extending in a specific horizontal direction with respect to the other of the table and the base and a pair of left and right guide rails for movably guiding the pair of left and right guide blocks along a pair of left and right tracks extending along the specific horizontal axis; and a vertical spring member for generating an upward spring force on the table based on the base, and one end of the upper end portion or the lower end portion being the center of rotation about one of the table or the base. A pair of right and left guide blocks are rotatably fixed around the center of rotation and the other end of the upper end or the lower end is fixed to the guide block so as to be rotatable around the other center of rotation. and a horizontal spring member for applying a spring force to each of the pair of left and right links along the specific horizontal axis in a direction toward each other. and support the table respectively, and the vertical spring member is a tension spring whose upper part is connected to the base and whose lower part is connected to the table.

With the configuration of the present invention described above, the object can be placed on the table. A base is supported by the foundation. N table support mechanisms support the table based on a base. When viewed from above, N table support mechanisms are arranged to surround the table and support the table respectively. The horizontal movement guide mechanism of the table support mechanism includes a pair of left and right guide blocks spaced apart along a specific horizontal axis extending in a specific horizontal direction with respect to the other of the table and the base. It has a pair of left and right guide rails for guiding the pair of guide blocks movably along a pair of left and right tracks extending along the specific horizontal axis. A vertical spring member of the table support mechanism generates an upward spring force on the table based on the base. A pair of left and right links of the table support mechanism fixes one of the upper end and the lower end to one of the table and the base so as to be rotatable around the center of rotation. The other end of the upper end or the lower end is fixed to the guide block so as to be rotatable around the other rotation center. A horizontal spring member of the table support mechanism applies a spring force to each of the pair of left and right links in a direction of approaching each other along the specific horizontal axis. The vertical spring member is a tension spring whose upper part is connected to the base and whose lower part is connected to the table.
As a result, a large-scale object support device can be manufactured by adjusting the seismic isolation characteristics of the N table support mechanisms, increasing the degree of freedom in design.

Further, the table support mechanism has a vertical movement guide mechanism for suppressing relative lateral movement of the table based on the base and guiding the table so as to be movable in the vertical direction, the vertical movement guide mechanism The unevenness formed on one of the table and the base is fitted into the unevenness formed on the other of the table and the base, thereby suppressing the relative lateral movement of the table and guiding it vertically movably. It is a mechanism to
According to the configuration of the embodiment according to the present invention, the vertical movement guide mechanism is such that the unevenness formed on one of the table and the base is fitted into the unevenness formed on the other of the table and the base. It is a mechanism that suppresses the relative horizontal movement of the table and guides it so that it can move vertically.
As a result, it is possible to suppress the relative horizontal movement of the table with a simple structure and to guide the table so that it can move freely in the vertical direction.

As described above, the object supporting device according to the present invention has the following effects due to its procedure and configuration.
Using the base as a base, the table is restrained from moving relative to the left and right, and is guided so as to be movable in the vertical direction. One end is rotatably fixed to one of the table or the base, and the other end is rotatably fixed to a pair of left and right guide blocks spaced apart along a specific horizontal axis, and the pair of left and right guide blocks Guided along a pair of trajectories, a spring force is applied to a pair of left and right links in a direction to approach each other, and as the pair of left and right trajectories transition along the specific horizontal axis in a direction away from each other. Since it extends so as to be biased in one direction in the vertical direction, the support characteristic of the table support mechanism can be selected according to the purpose by selecting the degree of bias in one direction in the vertical direction of the pair of left and right tracks. more freedom.
Further, the pair of left and right tracks are arranged to extend so as to deviate toward the side where one end of the link is located as the pair of left and right tracks transition along the specific horizontal axis in directions that separate them from each other. By selecting the degree of bias in one of the vertical directions of the track, the support characteristics of the table support mechanism can be selected according to the purpose, increasing the degree of freedom in design.
Further, since the pair of left and right tracks extends along a concave curve, the support characteristics of the table support mechanism can be selected according to the purpose by selecting the degree of curvature of the pair of left and right tracks. This increases the degree of freedom in design.
Further, the support characteristics of the table support mechanism can be adjusted by selecting the curvature of the pair of left and right tracks such that the pair of left and right tracks extend respectively along a pair of left and right curves having a predetermined concave curvature. It can be selected according to the purpose, and the degree of freedom in design increases.
Further, when one end is the upper end, the center of right curvature of the right trajectory and the left center of curvature of the left trajectory are positioned above the imaginary intersection as a boundary between the upper and lower sides, or one end is the lower end. , the center of right curvature of the right track and the center of left curvature of the left track are positioned downward with the imaginary intersection as a boundary between the upper and lower sides. The degree of freedom in designing for the purpose of optimizing is increased.
In addition, since the center of right curvature of the right track is positioned on the left side of the imaginary intersection as a boundary between the left and right sides, and the center of left curvature of the left track is positioned on the right side of the imaginary intersection as a boundary, the degree of inclination of the track can be controlled. It can be made larger, increasing the degree of freedom in design.
In addition, since the left and right links are divided into right and left sides, the one rotation center of each of the left and right links is separated from each other by a predetermined separation distance, thereby increasing the degree of freedom in design.
In addition, since the one-way rotation center of each of the pair of left and right links is aligned with each other when viewed horizontally so as to divide the pair of left and right links into the left and right, the degree of freedom in design is increased.
In addition, since the pair of left and right links are arranged to intersect between the one rotation center and the other rotation center when viewed horizontally so as to divide the left and right links into the left and right, the degree of freedom in design is increased. increase.
In addition, since the pair of left and right links are rotatably connected at the intersection between the one rotation center and the other rotation center, the degree of freedom in design increases.
In addition, one of the table and the base is fitted to the other of the table and the base so that the relative movement of the table to the left and right is suppressed and the table is guided so as to be movable in the vertical direction. With a simple structure, it is possible to suppress the relative horizontal movement of the table and to guide the table so that it can move freely in the vertical direction.
In addition, relative lateral movement of the table is suppressed with the base as a base, and the table is guided vertically movably. One end is rotatably fixed to one of the table or the base, and the other end is rotatably fixed to a pair of left and right guide blocks separated along a specific horizontal axis. are guided along a pair of left and right trajectories, and N table support mechanisms for applying a spring force to the pair of left and right links in a direction to approach each other are arranged to surround the table and support the table respectively, Since the vertical spring member is a tension spring whose upper part is connected to the base and whose lower part is connected to the table, the seismic isolation characteristics of N table support mechanisms are adjusted to provide a large-scale object support device. can be created, increasing the degree of freedom in design.
Also, one of the table and the base is fitted to the other of the table and the base, so that the relative movement of the table to the left and right is suppressed and the table is guided so as to be movable in the vertical direction. With a simple structure, it is possible to suppress the relative horizontal movement of the table and to guide the table so that it can move freely in the vertical direction.
Therefore, it is possible to provide a seismic isolation device that supports an object with a simple structure and an adapted seismic isolation function.

1 is a conceptual diagram of an object support device according to a first embodiment of the present invention; FIG. It is a conceptual diagram of the target object support apparatus concerning 2nd embodiment of this invention. It is a conceptual diagram of the target object support apparatus concerning 3rd embodiment of this invention. It is a conceptual diagram of the target object support apparatus concerning 4th embodiment of this invention. It is a conceptual diagram of the target object support apparatus concerning 5th embodiment of this invention. It is a conceptual diagram of the target object support apparatus concerning 6th embodiment of this invention. It is a conceptual diagram of the target object support apparatus concerning 7th embodiment of this invention. FIG. 11 is a conceptual diagram of an object support device according to an eighth embodiment of the present invention; It is a conceptual diagram of the target object support apparatus concerning 9th embodiment of this invention. 4 is a composite spring reaction force graph of the object support device according to the embodiment of the present invention; 4 is a comparative graph of synthetic spring reaction force of the object support device according to the embodiment of the present invention; 1 is a first example of adoption of the object support device according to the embodiment of the present invention; 1 is a side view of a first adoption example of an object support device according to an embodiment of the present invention; FIG. 1 is a plan view of a first adoption example of an object support device according to an embodiment of the present invention; FIG. FIG. 10 is a side cross-sectional view of a second adoption example of the object support device according to the embodiment of the present invention; FIG. 4 is a partial detailed view of a second example of adoption of the object support device according to the embodiment of the present invention; FIG. 4 is a partial detailed view of a second example of adoption of the object support device according to the embodiment of the present invention; FIG. 4 is a partial detailed view of a second example of adoption of the object support device according to the embodiment of the present invention; It is a top view of the example 2 of adoption of the target object support apparatus concerning embodiment of this invention. 1 is a conceptual diagram of a conventional object support device; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described below with reference to the drawings.

First, an object supporting device according to a first embodiment of the present invention will be described. FIG. 1 is a conceptual diagram of an object supporting device according to a first embodiment of the present invention.

An object support device is a device that supports an object.
The object supporting device is used for a device that supports the object 10 and isolates it from vertical vibrations.
The object support device may be used in combination with a horizontal vibration isolation device.

The object support device is composed of a table 100 , a base 200 and a table support mechanism 300 .
The table 100 is for placing the object 10 thereon.
The base 200 is supported by a foundation.
The table support mechanism 300 is a mechanism that supports the table 100 on the basis of the base 200 .
The structure of the table support mechanism 300 will be described below.

The table support mechanism 300 is composed of a horizontal movement guide mechanism 310 , a vertical spring member 320 , a pair of left and right link mechanisms 330 , and a horizontal spring member 340 .
The table support mechanism 300 may be composed of a horizontal movement guide mechanism 310 , a vertical spring member 320 , a pair of left and right link mechanisms 330 , a horizontal spring member 340 and a vertical movement guide mechanism 350 .

The horizontal movement guide mechanism 310 includes a pair of left and right guide blocks 311 and a pair of left and right guide blocks arranged apart along a specific horizontal axis x, which is a horizontal axis extending in a specific horizontal direction with respect to the other of the table and the base. A pair of left and right guide rails 312 movably guide the rail 311 along a pair of left and right tracks g extending along the specific horizontal axis x.
For example, the horizontal movement guide mechanism 310 is provided on the base 200 and includes a pair of left and right guide blocks 311 spaced apart along a specific horizontal axis x, which is a horizontal axis extending in a specific horizontal direction with respect to the base 200. and a pair of left and right guide rails 312 for movably guiding a pair of left and right guide blocks 311 along a pair of left and right tracks g extending along the specific horizontal axis x.
For example, the horizontal movement guide mechanism 310 includes a pair of left and right guide blocks 311 provided on the table 100 and spaced apart along a specific horizontal axis x, which is a horizontal axis extending in a specific horizontal direction with respect to the table 100 . It is composed of a pair of left and right guide rails 312 that movably guide a pair of guide blocks 311 along a pair of left and right tracks g extending along a specific horizontal axis x.
The shape of the trajectory g will be described later.
FIG. 1 shows how the horizontal movement guide mechanism 310 is provided on the base 200 .

The vertical spring member 320 is a member that generates an upward spring force on the table 100 based on the base 200 .
The vertical spring member 320 has a design-selected spring constant.
The vertical spring member 320 may be a compression spring.
For example, a compression spring has a lower end connected to the base 200 and an upper end connected to the table 100 to exert an upward compressive force on the table 100 .
The vertical spring member 320 may be a tension spring.
For example, a tension spring has a lower end connected to the table 100 and an upper end connected to the base, and exerts an upward tensile force on the table 100 .
FIG. 1 schematically shows how compression springs are provided between a table 100 and a base 200 .

The link mechanism 330 is composed of a pair of left and right links 331 .
The link mechanism 330 may be composed of a pair of left and right links 331, one connecting shaft 332u and the other connecting shaft 332d.
For example, the pair of left and right links 331 is composed of a right link 331r and a left link 331l.
The pair of left and right links 331 are fixed at one end of the upper end or the lower end to one of the table or the base so as to be rotatable about the center of rotation. The other end of the upper end or the lower end is fixed to the guide block 311 so as to be rotatable around the other rotation center.
For example, when the horizontal movement guide mechanism 310 is provided on the base 200, the pair of left and right links 331 are rotatable around the center of rotation of the table 100 at one end, which is the upper end. The other end, which is the lower end, is rotatably fixed to the guide block 311 around the other rotation center, which is the center of rotation.
One connecting shaft 332 u rotatably connects one end of the link to the table 100 , and the other connecting shaft 332 d rotatably connects the other end of the link to the guide block 311 .
For example, when the horizontal movement guide mechanism 310 is provided on the table 100, the pair of left and right links 331 are rotatable around the rotation center with one end, which is the lower end, relative to the base 200. The other end, which is the upper end, is rotatably fixed to the guide block 311 around the other rotation center, which is the rotation center.
One connecting shaft 332 u rotatably connects one end of the link to the base 200 , and the other connecting shaft 332 d rotatably connects the other end of the link to the guide block 311 .
1 shows a horizontal movement guide in which a pair of left and right links 331 are rotatably connected to the table 100 by one connecting shaft 332u at one end and provided on the base 200 by the other connecting shaft 322d at the other end. It is shown to be rotatably connected to the guide block 311 of the mechanism 310 by the other connecting shaft 332d.

When viewed horizontally so that the pair of left and right links 331 are divided into left and right, the one rotation center of each of the pair of left and right links 331 may coincide.
1, one end of a pair of left and right links 331 is rotatably connected to the table 100 by one connecting shaft 332u, and the other end is provided to the base 200 by a pair of left and right other connecting shafts 322d. It is shown to be rotatably connected to the guide block 311 of the horizontal movement guide mechanism 310 by the other connecting shaft 332d.

The horizontal direction spring member 340 is a member that applies a spring force to each of the pair of left and right links 331 along the specific horizontal axis x in a direction toward each other.
The horizontal direction spring member 340 may be a member that applies a spring force to the other end of the pair of left and right links 331 along the specific horizontal axis x in a direction toward each other.
The horizontal spring member 340 has a design-selected spring constant.
Horizontal spring member 340 may be a compression spring.
For example, a pair of compression springs may exert a spring force on the other end of the pair of left and right links 331 in a direction to approach each other along the specific horizontal axis x.
Horizontal spring member 340 may be a tension spring.
For example, a tension spring may apply a spring force to the other end of the pair of left and right links 331 in a direction to approach each other along the specific horizontal axis x.
For example, a pair of tension springs may exert a spring force on the other end of the pair of left and right links 331 in a direction to approach each other along the specific horizontal axis x.
For example, a tension spring has one end connected to the other end of the right link 331r, the other end connected to the other end of the left link 331l, and the other end of the pair of left and right links 331. exert a spring force on each in a direction toward each other along a particular horizontal axis x.
The horizontal spring member 340 may directly apply a spring force to the pair of left and right links 331 in a direction toward each other along the specific horizontal axis x.
The horizontal spring member 340 may apply a spring force to the pair of left and right links 331 through the guide block 311 so as to approach each other along the specific horizontal axis x.
In FIG. 1, the tension spring has one end connected to the other end of the right link 331r and the other end connected to the other end of the left link 331l. The ends are shown to exert a spring force on each in a direction toward each other along a particular horizontal axis x.

A vertical movement guide mechanism (not shown) is a mechanism that suppresses the relative horizontal movement of the table 100 based on the base 200 and guides the table 100 so as to be movable in the vertical direction.
A vertical movement guide mechanism (not shown) may be a mechanism that suppresses relative lateral movement and rocking motion of the table 100 based on the base 200 and guides the table 100 so that the table 100 can move freely in the vertical direction.
A vertical movement guide mechanism (not shown) may be a mechanism that suppresses relative horizontal movement, pitching, and rolling of the table 100 based on the base 200 and guides the table 100 so that it can move freely in the vertical direction.
A vertical movement guide mechanism (not shown) to which a locking prevention function is added is also called an anti-locking mechanism.

A pair of left and right trajectories g extend so as to deviate to one side in the vertical direction as they make transitions along the specific horizontal axis x in directions that separate them from each other.
A pair of left and right trajectories g may extend upward at a constant ratio as they transition along the specific horizontal axis x in directions away from each other.
FIG. 1 shows that the trajectory g is linear and extends with a constant bias in one direction in the upward direction as it traverses along a particular horizontal axis x in directions that are spaced apart from each other.

Next, an object supporting device according to a second embodiment of the present invention will be described. FIG. 2 is a conceptual diagram of an object supporting device according to a second embodiment of the present invention.

The object support device is a device that supports the object 10 .
The object support device is used for a device that supports the object 10 and isolates vertical vibrations.
The object support device may be used in combination with a horizontal vibration isolation device.

The object support device is composed of a table 100 , a base 200 and a table support mechanism 300 .
The main structures of the table 100, the base 200, and the table support mechanism 300 are the same as those of the object support device according to the first embodiment of the present invention, so description thereof will be omitted, and only different points will be described.

A pair of left and right trajectories g extend so as to deviate to one side in the vertical direction as they make transitions along the specific horizontal axis x in directions that separate them from each other.
A pair of left and right trajectories g may extend downward at a constant ratio as they transition along the specific horizontal axis x in directions away from each other.
FIG. 2 shows that the trajectory g is linear and extends downward at a constant rate as it traverses along a particular horizontal axis x in directions that are spaced apart from each other.

Next, an object supporting device according to a third embodiment of the present invention will be described. FIG. 3 is a conceptual diagram of an object supporting device according to a third embodiment of the present invention.

The object support device is a device that supports the object 10 .
The object support device is used for a device that supports the object 10 and isolates vertical vibrations.
The object support device may be used in combination with a horizontal vibration isolation device.

The object support device is composed of a table 100 , a base 200 and a table support mechanism 300 .
The main structures of the table 100, the base 200, and the table support mechanism 300 are the same as those of the object support device according to the first embodiment of the present invention, so description thereof will be omitted, and only different points will be described.

A pair of left and right trajectories g extend so as to deviate to one side in the vertical direction as they make transitions along the specific horizontal axis x in directions that separate them from each other.
A pair of left and right trajectories g extend so as to be biased upward as they make transitions along the specific horizontal axis x in directions away from each other.
A pair of left and right tracks may extend along a concave curve.
A pair of left and right tracks may extend along a downwardly concave curve.
The pair of left and right tracks may each extend along a pair of left and right curves having a predetermined curvature that is concave downward.
FIG. 3 shows a pair of left and right tracks extending along a pair of left and right curved lines each having a predetermined curvature that is concave downward, and the radius of curvature R is longer than the length of the link.

Here, for convenience of explanation, the intersection point of a pair of left and right imaginary lines connecting one rotation center and the other rotation center of a pair of left and right links when viewed horizontally so as to divide the pair of left and right links into left and right is defined as a virtual intersection C. call it.
When one end is the upper end, the right curvature center Rc, which is the center of the right curvature that is the predetermined curvature of the right trajectory, which is the right trajectory of the pair of left and right trajectories, and the right curvature center Rc of the pair of left and right trajectories The left curvature center Lc that is the center of the left curvature that is the predetermined curvature of the left trajectory that is the trajectory on the left side of the left trajectory may be positioned above the imaginary intersection C as a vertical boundary.
When one end is the lower end, the right curvature center Rc, which is the center of the right curvature that is the predetermined curvature of the right trajectory, which is the right trajectory of the pair of left and right trajectories, and the right curvature center Rc of the pair of left and right trajectories The left curvature center Lc, which is the center of the left curvature that is the predetermined curvature of the left trajectory, which is the trajectory on the left side of the left trajectory, may be positioned below the imaginary intersection C as a boundary between the upper and lower sides.
FIG. 3 shows a right curvature center Rc that is the center of the right curvature that is the predetermined curvature of the right trajectory of the pair of left and right trajectories, and a left curvature center Lc that is the center of the left curvature that is the predetermined curvature of the left trajectory. It is shown to be located above the virtual intersection C as a boundary between the upper and lower sides.

Next, an object supporting device according to a fourth embodiment of the present invention will be described. FIG. 4 is a conceptual diagram of an object supporting device according to a fourth embodiment of the present invention.

The object support device is a device that supports the object 10 .
The object support device is used for a device that supports the object 10 and isolates vertical vibrations.
The object support device may be used in combination with a horizontal vibration isolation device.

The object support device is composed of a table 100 , a base 200 and a table support mechanism 300 .
The main structures of the table 100, the base 200, and the table support mechanism 300 are the same as those of the object support device according to the first embodiment of the present invention, so description thereof will be omitted, and only different points will be described.

A pair of left and right trajectories g extend so as to deviate to one side in the vertical direction as they make transitions along the specific horizontal axis x in directions that separate them from each other.
A pair of left and right trajectories g extend so as to deviate downward as they transition along the specific horizontal axis x in directions away from each other.
A pair of left and right tracks g may extend along a concave curve.
A pair of left and right tracks g may extend along an upwardly concave curve.
The pair of left and right tracks g may each extend along a pair of left and right curves having a predetermined curvature concave upward.
FIG. 4 shows that a pair of left and right tracks g extend along a pair of left and right curves with a predetermined curvature that is concave upward, and the radius of curvature R is longer than the length of the link.

Here, for convenience of explanation, the intersection point of a pair of left and right imaginary lines connecting one rotation center and the other rotation center of a pair of left and right links when viewed horizontally so as to divide the pair of left and right links into left and right is defined as a virtual intersection C. call it.
When one end is the upper end, the right curvature center Rc, which is the center of the right curvature that is the predetermined curvature of the right trajectory, which is the right trajectory of the pair of left and right trajectories, and the right curvature center Rc of the pair of left and right trajectories The left curvature center Lc, which is the center of the left curvature, which is the predetermined curvature of the left trajectory, may be located below the trajectory g as a vertical boundary.
When one end is the lower end, the right curvature center Rc, which is the center of the right curvature that is the predetermined curvature of the right trajectory, which is the right trajectory of the pair of left and right trajectories, and the right curvature center Rc of the pair of left and right trajectories The left curvature center Lc, which is the center of the left curvature, which is the predetermined curvature of the left trajectory, may be positioned above the trajectory g as a vertical boundary.
In FIG. 4, one end is an upper end, and the right curvature center Rc, which is the center of the right curvature that is the predetermined curvature of the right trajectory that is the right trajectory of the pair of left and right trajectories, and the pair of left and right trajectories The left curvature center Lc, which is the center of the left curvature of the left trajectory, which is the left trajectory of the trajectories, is positioned below the trajectory g as a vertical boundary.

Next, an object supporting device according to a fifth embodiment of the present invention will be described. FIG. 5 is a conceptual diagram of an object supporting device according to a fifth embodiment of the present invention.

The object support device is a device that supports the object 10 .
The object support device is used for a device that supports the object 10 and isolates vertical vibrations.
The object support device may be used in combination with a horizontal vibration isolation device.

The object support device is composed of a table 100 , a base 200 and a table support mechanism 300 .
The main structures of the table 100, the base 200, and the table support mechanism 300 are the same as those of the object support device according to the first embodiment of the present invention, so description thereof will be omitted, and only different points will be described.

A pair of left and right trajectories g extend so as to deviate to one side in the vertical direction as they make transitions along the specific horizontal axis x in directions that separate them from each other.
A pair of left and right trajectories g extend so as to deviate downward as they transition along the specific horizontal axis x in directions away from each other.
A pair of left and right tracks g may extend along a concave curve.
A pair of left and right tracks g may extend along a downwardly concave curve.
The pair of left and right tracks g may each extend along a pair of left and right curves having a predetermined curvature that is concave downward.
FIG. 5 shows a pair of left and right tracks g each extending along a pair of left and right curves with a predetermined curvature that is concave downward, and the radius of curvature R is longer than the length of the link.

Here, for convenience of explanation, a virtual intersection C is a point at which a pair of left and right imaginary lines connecting one rotation center and the other rotation center of the left and right pair of links 331 are divided into left and right when viewed horizontally. called
The right curvature center Rc, which is the center of the right curvature of the right trajectory, which is the right trajectory of the pair of left and right trajectories g, is located on the left side of the imaginary intersection C as a boundary between the left and right, and the predetermined curvature of the left trajectory. The left curvature center Lc, which is the center of the left curvature, is located on the right side of the imaginary intersection C as the boundary between the left and right sides.
FIG. 5 shows the right curvature center Rc that is the center of the right curvature that is the predetermined curvature of the right trajectory and the left curvature center Lc that is the center of the left curvature that is the predetermined curvature of the left trajectory of the pair of left and right trajectories g. is located above the imaginary intersection C as the upper and lower boundary, and the right curvature center Rc, which is the center of the right curvature that is the predetermined curvature of the right trajectory of the pair of left and right trajectories g, is on the left side with the imaginary intersection C as the left and right boundary. , and the left curvature center Lc, which is the center of the left curvature, which is a predetermined curvature of the left track, is positioned on the right side of the imaginary intersection C as a left-right boundary.

Next, an object support device according to a sixth embodiment of the present invention will be described. FIG. 6 is a conceptual diagram of an object support device according to a sixth embodiment of the present invention.

The object support device is a device that supports the object 10 .
The object support device is used for a device that supports the object 10 and isolates vertical vibrations.
The object support device may be used in combination with a horizontal vibration isolation device.

The object support device is composed of a table 100 , a base 200 and a table support mechanism 300 .
The main structures of the table 100, the base 200, and the table support mechanism 300 are the same as those of the object support device according to the first embodiment of the present invention, so description thereof will be omitted, and only different points will be described.

A pair of left and right trajectories g extend so as to deviate to one side in the vertical direction as they make transitions along the specific horizontal axis x in directions that separate them from each other.
A pair of left and right trajectories g extend so as to be biased upward as they make transitions along the specific horizontal axis x in directions away from each other.
A pair of left and right tracks g may extend along a concave curve.
A pair of left and right tracks g may extend along an upwardly concave curve.
The pair of left and right tracks g may each extend along a pair of left and right curves having a predetermined curvature concave upward.
FIG. 6 shows that a pair of left and right tracks g extend along a pair of left and right curves that are concave upward and have a predetermined curvature, and the radius of curvature R is longer than the length of the link.

Here, for convenience of explanation, the intersection point of a pair of left and right imaginary lines connecting one rotation center and the other rotation center of a pair of left and right links when viewed horizontally so as to divide the pair of left and right links into left and right is defined as a virtual intersection C. call it.
When one end is the upper end, the right curvature center Rc, which is the center of the right curvature that is the predetermined curvature of the right trajectory, which is the right trajectory of the pair of left and right trajectories, and the right curvature center Rc of the pair of left and right trajectories The left curvature center Lc, which is the center of the left curvature, which is the predetermined curvature of the left trajectory, may be located below the trajectory g as a vertical boundary.
When one end is the lower end, the right curvature center Rc, which is the center of the right curvature that is the predetermined curvature of the right trajectory, which is the right trajectory of the pair of left and right trajectories, and the right curvature center Rc of the pair of left and right trajectories The left curvature center Lc, which is the center of the left curvature, which is the predetermined curvature of the left trajectory, may be positioned above the trajectory g as a vertical boundary.
In FIG. 6, one end is an upper end, and a right curvature center Rc that is the center of a right curvature that is a predetermined curvature of the right trajectory that is the right trajectory of a pair of left and right trajectories and a pair of left and right trajectories The left center of curvature Lc, which is the center of the left curvature of the left trajectory, which is the left trajectory of the trajectories, is positioned below the trajectory g as a vertical boundary, and the right of the pair of left and right trajectories g. The right curvature center Rc, which is the center of the right curvature, which is the predetermined curvature of the track, is located on the left side of the imaginary intersection C as a left-right boundary, and the left curvature center Lc, which is the center of the left curvature which is the predetermined curvature of the left track, is located on the left side of the imaginary intersection C. The state of being positioned on the right side with the virtual intersection C as the boundary between the left and right is shown.

Next, an object support device according to a seventh embodiment of the present invention will be described. FIG. 7 is a conceptual diagram of an object support device according to a seventh embodiment of the present invention.

The object support device is a device that supports the object 10 .
The object support device is used for a device that supports the object 10 and isolates vertical vibrations.
The object support device may be used in combination with a horizontal vibration isolation device.

The object support device is composed of a table 100 , a base 200 and a table support mechanism 300 .
The main structures of the table 100, the base 200, and the table support mechanism 300 are the same as those of the object support device according to the first embodiment of the present invention, so description thereof will be omitted, and only different points will be described.
The trajectory g may be any of the trajectories g of the object support devices according to the first to sixth embodiments.

When viewed horizontally so as to divide the pair of left and right links 331 into the left and right, one rotation center of each of the pair of left and right links 331 is separated by a predetermined distance.
FIG. 7 shows how the left and right links 331 are horizontally separated from each other by a predetermined separation distance H between the one rotation centers of the left and right links 331 when viewed horizontally.

Next, an object supporting device according to an eighth embodiment of the present invention will be described. FIG. 8 is a conceptual diagram of an object supporting device according to an eighth embodiment of the present invention.

The object support device is a device that supports the object 10 .
The object support device is used for a device that supports the object 10 and isolates vertical vibrations.
The object support device may be used in combination with a horizontal vibration isolation device.

The object support device is composed of a table 100 , a base 200 and a table support mechanism 300 .
The main structures of the table 100, the base 200, and the table support mechanism 300 are the same as those of the object support device according to the first embodiment of the present invention, so description thereof will be omitted, and only different points will be described.
The trajectory g may be any of the trajectories g of the object support devices according to the first to sixth embodiments.

Here, for convenience of explanation, the point at which a pair of left and right imaginary lines connecting one rotation center and the other rotation center of each of the left and right links when viewed horizontally so as to divide the left and right links into left and right is defined as a virtual intersection. Call it C.
The pair of left and right links 331 are viewed horizontally so as to be divided into left and right, and the pair of left and right links 331 intersect between their one rotation center and the other rotation center.
FIG. 8 shows how the pair of left and right links 331 intersect between their one rotation center and the other rotation center when viewed horizontally so as to divide the left and right links 331 into left and right.

Next, an object supporting device according to a ninth embodiment of the present invention will be described. FIG. 9 is a conceptual diagram of an object supporting device according to a ninth embodiment of the present invention.

The object support device is a device that supports the object 10 .
The object support device is used for a device that supports the object 10 and isolates vertical vibrations.
The object support device may be used in combination with a horizontal vibration isolation device.

The object support device is composed of a table 100 , a base 200 and a table support mechanism 300 .
The main structures of the table 100, the base 200, and the table support mechanism 300 are the same as those of the object support device according to the first embodiment of the present invention, so description thereof will be omitted, and only different points will be described.
The trajectory g may be any of the trajectories g of the object support devices according to the first to sixth embodiments.

Here, for convenience of explanation, the point at which a pair of left and right imaginary lines that connect one rotation center and the other rotation center of each of the left and right links 331 when viewed horizontally so as to divide the pair of left and right links 331 into left and right is the intersection point. Call it virtual intersection C.
A pair of left and right links 331 are viewed horizontally so as to be divided into left and right, and the pair of left and right links intersect between one rotation center and the other rotation center, and the left and right links 331 are each located at one rotation center and the other rotation center. It is rotatably connected at a place where it intersects with and is sandwiched between.
One end of the link 331 is rotatably connected to one guide block 361 of one horizontal movement guide mechanism 360 provided on either the table 100 or the base.
On the other hand, the horizontal movement guide mechanism 360 includes a pair of left and right guide blocks 361 and a pair of left and right guide blocks 361 which are spaced apart along a specific horizontal axis x, which is a horizontal axis extending in a specific horizontal direction with respect to either the table or the base. It is composed of a pair of left and right one-side guide rails 362 that guide the one-side guide block 361 movably along a pair of left and right tracks extending along the specific horizontal axis x.
In FIG. 9, a pair of left and right links 331 are divided into left and right when viewed horizontally. One end of the link 331 is rotatably connected to the one guide block 361 of the one horizontal movement guide mechanism 360 provided on the table 100 at the point where it intersects between the one rotation center and the other rotation center. A state of connection is shown.
A link connecting shaft 333 rotatably connects the pair of links 331 at an intersection.
The seismic isolation performance can be selected by selecting the locus g of the guide rail 362 in the same manner as selecting the locus g of the guide rail 312 .

The composite spring reaction force of the object support mechanism according to the embodiment of the present invention will be described below with reference to the drawings.
FIG. 10 is a synthetic spring reaction force graph of the object support device according to the embodiment of the present invention.
The solid line in FIG. 10 is a curve showing the relationship between the vertical displacement (m) of the table 100 and the vertical reaction force (N) acting on the table 100 due to the spring force of the horizontal spring member 340.
The solid dashed line in FIG. 10 is a curve showing the relationship between the vertical displacement (m) of the table 100 and the vertical reaction force (N) acting on the table 100 due to the spring force of the vertical spring member 320.
A thin dashed line in FIG. 10 is a curve showing the relationship between the vertical displacement (m) of the table 100 and the combined spring reaction force.
By selecting the trajectory g and the position of one end of the link, the characteristics of the resultant spring reaction force can be selected.

FIG. 11 is a comparative graph of synthetic spring reaction force of the object support device according to the embodiment of the present invention.
11A to 11D are comparisons of the characteristics of the synthetic spring reaction force when the shape and specifications of the guide rail are the same except for the shape of the trajectory of the guide rail, and the trajectory of the guide rail is set as follows. is.
(A) of the third embodiment in which the trajectory is a concave downward curve.
(B) of the fourth embodiment in which the trajectory is an upwardly concave curve;
(C) In the first embodiment, the trajectory is a straight line rising as it transitions outward.
(D) A second embodiment in which the trajectory is a straight line that descends as it transitions outward.
In the figure, the combined spring reaction force represented by the dashed line is for the table support structure shown in FIG.
A comparison of (A) to (D) in FIG. 11 reveals the following.

When one end of the link is the upper end and the other end of the link guided by the guide rail is the lower end, the centers of curvature Rc and Lc of the guide rails are set above the imaginary intersection C. , or set so that the inclination of the trajectory becomes upward as it transitions to the left or right, the spring constant of the negative spring is increased compared to the conventional table support structure having a horizontal trajectory g. The spring becomes so-called rigid, the negative inclination becomes sharper, the overall spring characteristic combined with the vertical spring is made flat, and the response characteristic of the object supporting device for supporting the object can be made long cycle.

When one end of the link is the upper end and the other end of the link guided by the guide rail is the lower end, the center of curvature of the guide rail is located below the locus. , or set so that the inclination of the trajectory turns downward as it shifts to the left and right, the spring constant of the negative spring is made smaller than that of the conventional table support structure having a horizontal trajectory g, and the spring becomes so-called soft. As a result, the slope of the negative slope becomes blunted, and the overall spring characteristics combined with the vertical spring are sloped, and the response characteristics of the object support device that supports the object can be made short-period.

1 and 2 of adoption examples of the object support device according to the embodiment of the present invention will be described below with reference to the drawings.
A first application example of the object supporting device according to the embodiment of the present invention is applied to a table for supporting a small object.
FIG. 12 shows a first adoption example of the object supporting device according to the embodiment of the present invention. FIG. 13 is a side view of a first adoption example of the object support device according to the embodiment of the present invention. FIG. 14 is a plan view of a first adoption example of the object support device according to the embodiment of the present invention.
For example, a small object is a work of art.
For example, a table for supporting an artwork is composed of a vertical base isolation table 20, a horizontal base isolation table 30, and a glass case 40.
The vertical seismic isolation table 20 incorporates the object support device according to the embodiment of the present invention.
The horizontal seismic isolation table 30 is a table that restricts movement in the vertical direction, allows horizontal movement, and generates a damping force according to the horizontal movement.
The glass case 40 is a transparent body that covers the artwork.

The object support device employed in the vertical seismic isolation table 20 is composed of a table 100 , a base 200 and N table support mechanisms 300 .
FIG. 13 shows an object support device composed of a table 100, a base 200 and four table support mechanisms 300. As shown in FIG.
The table support mechanism 300 is composed of a horizontal movement guide mechanism 310 , a vertical spring member 320 , a pair of left and right link mechanisms 330 , a horizontal spring member 340 and a vertical movement guide mechanism 350 .
Description of the same configuration as the horizontal movement guide mechanism 310, the vertical spring member 320, the pair of left and right link mechanisms 330, and the horizontal spring member 340 described above is omitted, and the object support device employed in the vertical seismic isolation table 20 A characteristic configuration will be explained.

When viewed from above, N table support mechanisms are arranged to surround the table 100 and support the table 100 respectively.

A horizontal movement guide mechanism 310 is provided on the base 200 .
A guide rail 312 is provided in a plate member forming the side surface of the base 200, and is a slit formed along the locus g.
Guide blocks 311 have wheels that are guided in slits in guide rails 312 .
A wheel rolls along a trajectory g.
(A) in the figure shows one provided with a guiding guide having a straight horizontal trajectory.
(B) in the figure shows that a guiding guide having a linearly inclined trajectory g is provided.
(C) in the figure shows that a guiding guide having a locus g of a curved line recessed downward is provided.

The vertical spring member 320 is a tension spring whose upper part is connected to the base and whose lower part is connected to the table.

In the vertical movement guide mechanism 350, the unevenness formed on one of the table 100 and the base 200 fits into the unevenness formed on the other of the table and the base, thereby suppressing the relative horizontal movement of the table 100. It is a mechanism that guides the robot so that it can move vertically.

A second application example of the object support device according to the embodiment of the present invention is applied to a large-scale table for supporting a large object 10 .
FIG. 15 is a side cross-sectional view of a second adoption example of the object support device according to the embodiment of the present invention. FIG. 19 is a plan view of a second adoption example of the object support device according to the embodiment of the present invention.

For example, large object 10 is a reactor.
For example, the base for supporting the reactor is composed of a plurality of upper and lower base isolation tables 20, a plurality of upper and lower base isolation tables 20x, and a plurality of horizontal base isolation tables 30.
One of the vertical seismic isolation table 20 and the vertical seismic isolation table 20x incorporates the object support device according to the embodiment of the present invention, and the other of the vertical seismic isolation table 20 and the vertical seismic isolation table 20x is an object of another type. An object support device may be incorporated.
For example, the vertical seismic isolation table 20 incorporates the object support device according to the embodiment of the present invention, and the vertical seismic isolation table 20x incorporates another type of object support device.
The horizontal seismic isolation table 30 is a table that restricts movement in the vertical direction, allows horizontal movement, and generates a damping force according to the horizontal movement.
For example, the horizontal seismic isolation table 30 is a seismic isolation table in which a metal plate and a rubber plate are laminated.

The table support mechanism 300 is composed of a horizontal movement guide mechanism 310 , a vertical spring member 320 , a pair of left and right link mechanisms 330 , and a horizontal spring member 340 .
The vertical seismic isolation table 20x has a function of suppressing the relative horizontal movement of the object 10 and guiding the object 10 so as to be movable in the vertical direction.
The vertical seismic isolation table 20x has a function of suppressing relative lateral movement, rolling, and pitching of the target object 10 and guiding the target object 10 so as to be freely movable in the vertical direction.

An example of the vertical base isolation table 20 and the vertical base isolation table 20X will be described below with reference to the drawings.
FIG. 16 is a partially detailed view of a second adoption example of the object support device according to the embodiment of the present invention. FIG. 17 is a partially detailed view of a second adoption example of the object support device according to the embodiment of the present invention. FIG. 18 is a partial detailed view of a second adoption example of the object support device according to the embodiment of the present invention.

FIG. 16 shows an example of the structure of the vertical seismic isolation base 20. As shown in FIG.
The vertical seismic isolation table 20 shown in FIG. 16 is composed of a table 100, a base 200, a vertical spring member 320, a vertical movement guide mechanism 350, and a locking prevention mechanism 400 in the structure of the table support mechanism 300 of the present invention. , the horizontal movement guide mechanism 310, the link mechanism 330 and the horizontal spring member 340 are omitted.
The vertical movement guide mechanism 350 and the locking prevention mechanism 400 are composed of a pair of pantograph mechanisms and a link mechanism that connects the pair of pantographs.
The vertical spring member 320 may be composed of a compression spring.

17 and 18 show an example of the structure of the upper and lower seismic isolation base 20x.
A vertical base isolation table 20x shown in FIG. 340.
The vertical seismic isolation table 20x shown in FIG. 18 is composed of a table 100, a base 200, a horizontal movement guide mechanism 310, a link mechanism 330, and a horizontal spring member 340 in the structure of the table support mechanism 300 of the present invention. The vertical spring member 320 is omitted.
The vertical spring member 320 may be composed of a compression spring.

As shown in FIG. 17, when viewed from above, the vertical seismic isolation table 20x having the structure of the present invention is arranged in the center, and the vertical seismic isolation table 20 composed of the vertical spring members 320 is arranged around it. may
The spring constant of the combined spring reaction force of the vertical base isolation base 20x is smaller than the spring constant of the combined spring reaction force of the vertical base isolation base 20x.
By arranging in this manner, the vertical movement of the object can be efficiently supported, and the locking of the object can be efficiently supported.

The following effects can be obtained by using the object support device according to the above-described embodiment.
With the base 200 as a base, the table 100 is restrained from moving relative to the left and right and is guided so as to be movable in the vertical direction. is rotatably fixed to one of the table 100 or the base 200, the other end is rotatably fixed to a pair of left and right guide blocks 311 separated along a specific horizontal axis x, and a pair of left and right guides A block 311 is guided along a pair of left and right trajectories g, and a spring force acts on the other ends of the pair of left and right links 331 so that the pair of left and right trajectories g move toward each other along a specific horizontal axis x. The support characteristics of the table support mechanism 300 can be selected by selecting the degree to which the pair of left and right tracks g are biased to one of the vertical directions. can be selected according to the purpose, increasing the degree of freedom in design.
In addition, since the pair of left and right tracks g are arranged to extend toward one end of the link 331 as they make transition along the specific horizontal axis x in directions away from each other, the pair of left and right tracks g By selecting the degree of deviation of the track g in one of the vertical directions, the support characteristics of the table support mechanism 300 can be selected according to the purpose, increasing the degree of freedom in design.
In addition, since the pair of left and right tracks g extends along a concave curve, the support characteristics of the table support mechanism 300 can be selected according to the purpose by selecting the degree of curvature of the pair of left and right tracks. , increasing the degree of freedom in design.
In addition, by selecting the curvature of the pair of left and right tracks g, the curvature of the curves of the pair of left and right tracks g is selected such that the pair of left and right tracks g extend respectively along the pair of left and right curves having a predetermined concave curvature. The support characteristics can be selected according to the purpose, increasing the degree of freedom in design.
Further, when one end is the upper end, the right center of curvature Rc of the right track and the left center of curvature Lc of the left track are positioned above the imaginary intersection C as a vertical boundary. The radius of curvature R of the orbit can be increased, increasing the degree of freedom in design for the purpose of lengthening the period.
In addition, since the right center of curvature Rc of the right track is positioned on the left side of the imaginary intersection C as a boundary, and the left center of curvature Lc of the left track is positioned on the right side of the imaginary intersection C as a boundary between the left and right sides, the track is inclined. The degree can be increased, and the degree of freedom in design increases.
Further, when viewed horizontally so as to separate the pair of left and right links 331, the one rotation center of each of the pair of left and right links 331 is separated by a predetermined separation distance, thereby increasing the degree of freedom in design.
Further, since the pair of left and right links 331 are divided into left and right when viewed horizontally, the one rotation center of each of the pair of left and right links 331 is made to coincide with each other, so that the degree of freedom in design is increased.
In addition, since the pair of left and right links 331 are divided into left and right when viewed horizontally, the pair of left and right links 331 intersect between the center of rotation on one side and the center of rotation on the other side, increasing the degree of freedom in design. .
Further, since the pair of left and right links 331 are rotatably connected at the intersection between the one rotation center and the other rotation center, the degree of freedom in design increases.
In addition, one of the table 100 and the base 200 is fitted to the other of the table 100 and the base 200 so as to suppress the relative lateral movement of the table and to guide the table so that it can move freely in the vertical direction. With such a structure, the relative lateral movement of the table 100 can be suppressed and the table 100 can be movably guided in the vertical direction.
In addition, relative lateral movement of the table 100 is suppressed with the base 200 as a base, and the table 100 is guided so as to be movable in the vertical direction. One end is rotatably fixed to one of the table 100 or the base 200, and the other end is rotatably fixed to a pair of left and right guide blocks 311 separated along a specific horizontal axis x. guide block 311 is guided along a pair of left and right trajectories g, and N table support mechanisms 300 that apply a spring force to the other ends of the pair of left and right links in a direction to approach each other surround the table 100. Each of the N table support mechanisms 300 is arranged to support the table 100, and the vertical spring member 320 is a tension spring whose upper part is connected to the base 200 and whose lower part is connected to the table 100. A large-scale object support device can be created by adjusting the seismic isolation characteristics, increasing the degree of freedom in design.
In addition, one of the table 100 and the base 200 is fitted to the other of the table and the base 200 to suppress the relative lateral movement of the table 100 and to guide the table 100 so that it can move freely in the vertical direction. With this structure, the relative horizontal movement of the table 100 can be suppressed and the table 100 can be movably guided in the vertical direction.

The present invention is not limited to the embodiments described above, and various modifications are possible without departing from the gist of the invention.
Although the case where the horizontal movement guide mechanism 310 is provided on the base 200 has been described as an example, it is not limited to this. For example, the horizontal movement guide mechanism 310 may be provided on the table 100 .
Although the example in which the structure in which one rotation center of each of the pair of left and right links is apart from each other by the predetermined separation distance H is applied to the first embodiment, the present invention is not limited to this. For example, a structure in which one rotation center of each of a pair of left and right links is separated by a predetermined separation distance H may be applied to the second to sixth embodiments.
An example in which a structure in which a pair of left and right links intersect is applied to the first embodiment has been described, but the present invention is not limited to this. For example, a structure in which a pair of left and right links intersect may be applied to the second to sixth embodiments.
Although the example in which the structure for rotatably connecting the points where the pair of left and right links intersect is applied to the first embodiment has been described, the present invention is not limited to this. For example, a structure in which a pair of left and right links intersect is rotatably connected may be applied to the second to sixth embodiments.

x Specific horizontal axis g Trajectory C Virtual intersection Rc Center of right curvature Lc Center of left curvature R Radius of curvature H Separation distance 10 Object 20 Upper and lower base isolation table 20x Upper and lower base isolation table 30 Horizontal base isolation table 40 Glass case 100 Table 200 Base 300 Table support mechanism 310 Horizontal movement guide mechanism 311 Guide block 312 Guide rail 320 Vertical spring member 330 Link mechanism 331 Link 331r Right link 331l Left link 332u One connecting shaft 332d Other connecting shaft 333 Link connecting shaft 340 Horizontal spring member 350 Vertical movement Guide mechanism 360 One-way horizontal movement guide mechanism 361 One-way guide block 362 One-way guide rail 400 Anti-locking mechanism

JP-A-11-37214 Japanese Patent Application Laid-Open No. 2009-168157 Japanese Patent Application Laid-Open No. 2008-157288

Claims (12)

An object support device for supporting an object,
a table on which an object can be placed;
a base supported by a foundation;
a table support mechanism that supports the table on the basis of the base;
with
The table support mechanism is
A pair of left and right guide blocks and a pair of left and right guide blocks arranged apart from each other along a specific horizontal axis which is a horizontal axis extending in a specific horizontal direction provided with respect to either the table or the base. a horizontal movement guide mechanism having a pair of left and right guide rails for movably guiding each of them along a pair of left and right tracks extending along the specific horizontal axis;
a vertical spring member for generating an upward spring force on the table based on the base;
A link mechanism having a pair of left and right links,
a horizontal spring member for applying a spring force to each of the pair of left and right links in a direction toward each other along the specific horizontal axis;
has
The pair of left and right links are
When the horizontal movement guide mechanism is provided on the base, the upper end is the center of rotation about the table, while the lower end is the center of rotation about the guide block. On the other hand, when the horizontal movement guide mechanism is provided on the table so as to be rotatable around the center of rotation, the lower end is fixed to the base while the center of rotation is the center of rotation, while the upper side is fixed to the center of rotation. The end portion is fixed to the guide block so as to be rotatable around the other rotation center which is the rotation center,
A pair of left and right guide blocks are restrained by the pair of left and right guide rails from moving relative to each other in a horizontal direction perpendicular to the track,
When the table moves up and down with respect to the base, the pair of left and right guide blocks are guided by the pair of left and right guide rails along the pair of left and right tracks. extending along the horizontal axis away from each other so as to be biased in one of the vertical directions as the transition is made;
An object support device characterized by: When the table moves up and down with respect to the base, the pair of left and right guide blocks are guided by the pair of left and right guide rails along the pair of left and right tracks. extending linearly so as to be biased in one of the vertical directions as the transition is made along the horizontal axis in directions away from each other;
The object support device according to claim 1, characterized in that: When the table moves up and down with respect to the base, the pair of left and right guide blocks are guided by the pair of left and right guide rails along the pair of left and right tracks. extending along a concave curve that is biased in one of the vertical directions as it transitions along directions spaced apart from each other along the horizontal axis;
The object support device according to claim 1, characterized in that: When the table moves up and down with respect to the base, the pair of left and right guide blocks are guided by the pair of left and right guide rails along the pair of left and right tracks. Each extends along a pair of left and right curves having a predetermined curvature that is concave in one of the vertical directions as it transitions along the horizontal axis in directions spaced apart from each other,
The object support device according to claim 1, characterized in that: When the point at which a pair of left and right imaginary lines connecting the one rotation center and the other rotation center of the pair of left and right links when viewed horizontally so as to divide the left and right links into left and right is called a virtual intersection,
When the horizontal movement guide mechanism is provided on the base, a right curvature center that is the center of a right curvature that is a predetermined curvature of the right trajectory, which is the right trajectory of the pair of left and right trajectories, and the pair of left and right trajectories The left curvature center, which is the center of the left curvature, which is the predetermined curvature of the left trajectory, which is the left trajectory, is located above the virtual intersection as a boundary between the upper and lower sides,
When the horizontal movement guide mechanism is provided on the table, the center of right curvature, which is the predetermined curvature of the right trajectory, which is the right trajectory of the pair of left and right trajectories, and the center of the right curvature of the pair of left and right trajectories. The left curvature center, which is the center of the left curvature, which is the predetermined curvature of the left trajectory, which is the left trajectory, is located below the virtual intersection as a boundary between the top and bottom.
5. The object support device according to claim 3 or 4, characterized in that: When the point at which a pair of left and right imaginary lines connecting the one rotation center and the other rotation center of the pair of left and right links when viewed horizontally so as to divide the left and right links into left and right is called a virtual intersection,
A right curvature center that is a center of a right curvature that is a predetermined curvature of the right orbit that is the right orbit of the pair of left and right orbits is located on the left side of the imaginary intersection as a left and right boundary,
The left curvature center, which is the center of the left curvature that is the predetermined curvature of the left trajectory, which is the left trajectory, is located on the right side with the virtual intersection as the left and right boundary,
5. The object support device according to claim 3 or 4, characterized in that: When viewed horizontally so as to divide the pair of left and right links into left and right, the one rotation center of each of the pair of left and right links is separated by a predetermined separation distance,
5. The object supporting device according to claim 1, wherein: When viewed horizontally so as to divide the pair of left and right links into left and right, the one rotation center of each of the pair of left and right links coincides,
5. The object supporting device according to claim 1, wherein: When viewed horizontally so as to divide the pair of left and right links into left and right, the pair of left and right links intersect between the one rotation center and the other rotation center,
5. The object supporting device according to claim 1, wherein: When viewed horizontally so as to divide the pair of left and right links into left and right, the pair of left and right links intersect between the one rotation center and the other rotation center,
The pair of left and right links are rotatably connected at a location where they intersect with each of the one rotation center and the other rotation center,
5. The object supporting device according to claim 1, wherein: The table support mechanism is
a vertical movement guide mechanism that suppresses the relative horizontal movement of the table based on the base and guides the table so that it can move vertically;
has
In the vertical movement guide mechanism, one of the table and the base is fitted to the other of the table and the base, thereby suppressing the relative horizontal movement of the table and guiding the table vertically movably. is a mechanism,
5. The object supporting device according to claim 1, wherein: N table support mechanisms;
with
When viewed from above, N table support mechanisms are arranged so as to surround the table and support the table respectively;
The vertical spring member is a tension spring whose upper part is connected to the upper part of a member whose lower part is supported by a base and extends upward, and whose lower part is connected to the table.
5. The object supporting device according to claim 1, wherein:

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