JP7390066B2 - Object support device - Google Patents

Description

The present invention relates to an object support device that supports an object. In particular, the present invention relates to an object support device that focuses on a seismic isolation function against vibrations in the vertical direction.

BACKGROUND ART Several configurations of horizontal object support devices (for example, seismic isolation tables) have been devised in the past. Horizontal seismic isolation tables 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 can support a vertical load, suppress resistance to horizontal vibration, and effectively exhibit a seismic isolation effect.

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

Earthquake waves are composed of waves with various periods, and among them, waves with periods of 0.5 to 1.0 overlap.
Wave components on the order of seconds are predominant. By making the vertical natural period of the object support device larger 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. The seismic isolation effect increases as the vertical natural period of the object support device increases to 1 second, 2 seconds, 3 seconds, and 5 seconds. It is preferable to set the time to 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 springs. Here, in order to make the vertical natural period of the object support device 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. I know. When an object is gently placed on the seismic isolation device in an unloaded state, it sinks about 1 meter and balances out, and vibrates up and down around this static equilibrium position, exerting a seismic isolation effect. The object support device has a height of about 1 m to several tens of cm. When the vertical natural period of the seismic isolation device is set to 3 seconds or 5 seconds, the static deflection becomes even larger.

In particular, as an object support device for vertical vibrations, it is preferable to use a seismic isolation device with nonlinear spring characteristics that exhibits extremely small static deflection under a certain load and has a soft spring constant when the load exceeds a certain level.
For example, when an object is placed on a table, it statically flexes to one position and statically suspends at that static suspension position. When an earthquake occurs, it vibrates up and down centering on the static suspension position.

Applicants of the present application, et al. have disclosed that ``a table on which an object is placed and moves up and down with respect to a base, and a spring that is installed between this table and the base and moves up and down in response to 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 part that moves along the horizontal direction as the table moves up and down; a horizontal spring member that is engaged with the movable part and generates a spring force in the horizontal direction according to the movement of the horizontal movable part, and the connecting member is arranged such that the distance between them increases as the table moves up and down. A pair of link members each having the horizontal movable portion that changes is provided, one end of each of the pair of link members is rotatably engaged with the table, and the horizontal spring member is connected to both ends of the link member. are respectively connected to each of the horizontal movable parts.''
The market desires to further improve the seismic isolation function of the object support device devised by the applicant.

The present invention has been devised in view of the above-mentioned problems, and it is an object of the present invention to provide an object support device for supporting an object that has a simple structure and further improved seismic isolation function.

In order to achieve the above object, an object support device for supporting an object according to the present invention includes a table on which the object is placed, a base supported by a foundation, and the table is supported using the base as a base. a table support mechanism; the table support mechanism includes a pair of left and right guides arranged apart from each other along a specific horizontal axis that is a horizontal axis extending in a specific horizontal direction with respect to the other of the table or the base; a horizontal movement guide mechanism having a block and a pair of left and right guide rails that movably guide the pair of left and right guide blocks along a pair of left and right tracks extending along the specific horizontal axis; a vertical spring member that generates an upward spring force on the table; and a rotation center whose one end of the upper end or the lower end is centered on one of the table or the base. a pair of left and right links, the other of which is the upper end or the lower end is rotatably fixed to the guide block around the other rotation center; , a horizontal spring member that applies a spring force to each of the left and right pairs of links in a direction in which they approach each other along the specific horizontal axis; and a horizontal spring member that suppresses relative left and right movement of the table based on the base and in an up and down direction. and a vertical movement guide mechanism for movably guiding the left and right tracks, and as the pair of left and right tracks transition along the specific horizontal axis in a direction that is spaced apart from each other, the track extends so as to be biased toward one side in the vertical direction as the tracks transition along the specific horizontal axis. , it was taken as a thing.

With the configuration of the present invention described above, an object can be placed on the table. A base is supported on the foundation. A table support mechanism supports the table based on the base. The horizontal movement guide mechanism of the table support mechanism is connected to a pair of left and right guide blocks spaced apart along a specific horizontal axis that extends in a specific horizontal direction with respect to the other of the table or the base. It has a pair of left and right guide rails for movably guiding the pair of guide blocks 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 are rotatable about one rotation center with one of the upper end and the lower end being attached to one of the table or the base. The other end of the upper end or the lower end is fixed to the guide block so as to be rotatable about the other rotation center. A horizontal spring member of the table support mechanism applies a spring force to each of the left and right links in a direction in which they approach 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 movably in the vertical direction. When the pair of left and right trajectories transition along the specific horizontal axis in directions that are spaced apart from each other, they extend so as to be biased toward one side in the vertical direction as they transition.
As a result, by selecting the extent to which the pair of left and right tracks are biased toward one side 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.

Furthermore, when the pair of left and right trajectories transition in a direction that separates them from each other along a specific horizontal axis, as the pair of trajectories transitions, one of the upper end and the lower end of the link is located. It extends in a lopsided manner.
According to the configuration of the embodiment according to the present invention, when the pair of left and right trajectories transition in a direction that is spaced apart from each other along the specific horizontal axis, the upper end or the lower end of the link changes as the pair of left and right trajectories transition along the specific horizontal axis. It extends toward the side where one end is located.
As a result, by selecting the extent to which the pair of left and right tracks are biased toward one side 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.

Further, 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 bending of the curves 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 respectively extend along a pair of left and right curves having a predetermined concave curvature.
According to the configuration of the embodiment according to the present invention, the pair of left and right tracks respectively extend along the pair of left and right curves having a predetermined concave curvature.
As a result, by selecting the curvature of the curves 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 pair of left and right links are viewed horizontally so as to be divided into left and right, the point where the pair of left and right virtual lines connecting the one rotation center and the other rotation center of the left and right pair of links intersect is referred to as a virtual intersection; When one end is the upper end, the center of right curvature, which is the center of right curvature, which is the predetermined curvature of the right orbit, which is the right orbit of the pair of left and right orbits, and the center of right curvature, which is the center of right curvature, The left curvature center, which is the center of the left curvature, which is a predetermined curvature of the left orbit, which is the left orbit, is located above the virtual intersection as the upper and lower boundary, and one end is the lower end. In this case, the center of right curvature is the predetermined curvature of the right orbit, which is the right orbit of the pair of left and right orbits, and the predetermined center of curvature, which is the center of right curvature, of the left orbit, which is the left orbit of the pair of left and right orbits. The center of left curvature, which is the curvature of , is located below the virtual intersection as the upper and lower boundary,
According to the configuration of the embodiment according to the present invention, the pair of left and right imaginary lines connecting the one rotation center and the other rotation center of the left and right pair of links when viewed horizontally so as to divide the left and right links into left and right links. The point of intersection is called a virtual intersection. When one end is the upper end, the center of right curvature, which is the center of right curvature, which is the predetermined curvature of the right orbit, which is the right orbit of the pair of left and right orbits, and the center of right curvature, which is the center of right curvature, The left curvature center, which is the center of the left curvature that is a predetermined curvature of the left orbit, which is the left orbit, is located above the virtual intersection as the upper and lower boundary. When one end is the lower end, the center of right curvature, which is the center of right curvature, which is the predetermined curvature of the right orbit, which is the right orbit of the pair of left and right orbits, and the center of right curvature, which is the center of right curvature, and The left curvature center, which is the center of the left curvature that is a predetermined curvature of the left orbit, which is the left orbit, is located below the virtual intersection as the upper and lower boundary.
As a result, the radius of curvature of the orbit can be made longer, increasing the degree of freedom in designing for a longer period.

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

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

Further, when viewed horizontally, the pair of left and right links intersect between the one center of rotation and the other center of rotation, respectively, when viewed horizontally so as to divide the pair of left and right links into left and right sides.
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 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 divide the left and right pairs of links into left and right, the left and right pairs of links intersect between the one rotation center and the other rotation center, and the left and right pairs of left and right links intersect each of the rotation centers. The one rotation center and the other rotation center are sandwiched and intersected and are rotatably connected.
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 left and right links into left and right. The pair of left and right links are rotatably connected at a location where each of the links intersects 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 includes a vertical movement guide mechanism that suppresses relative left and right movement of the table based on the base and guides the table so as to be movable in the vertical direction, and the vertical movement guide mechanism includes: This is a mechanism in which one of the table and the base is fitted into the other of the table and the base, and the relative left and right movement of the table is suppressed and the table is guided so as to be movable in the vertical direction.
According to the configuration of the embodiment according to the present invention, the vertical movement guide mechanism allows one of the table and the base to fit into the other of the table and the base, and allows the table to move horizontally relative to each other. It suppresses the movement and guides it in a vertically movable manner.
As a result, with a simple structure, relative left and right movement of the table can be suppressed and the table can be guided in a vertically movable manner.

In order to achieve the above object, an object support device for supporting an object according to the present invention includes a table on which the object is placed, a base supported by a foundation, and a N. a pair of left and right table support mechanisms arranged apart from each other along a specific horizontal axis that is a horizontal axis extending in a specific horizontal direction with respect to the other of the table or the base; a horizontal movement guide mechanism having a guide block and a pair of left and right guide rails that movably guide the pair of left and right guide blocks along a pair of left and right tracks extending along the specific horizontal axis, and the base; a vertical spring member that generates an upward spring force on the table based on the spring member; a pair of left and right parts, each of which is rotatably fixed around a rotation center, with the other end of the upper end or the lower end being fixed to the guide block so as to be rotatable around the other rotation center; a link, and a horizontal spring member that applies a spring force to each of the left and right links in a direction in which they approach each other along the specific horizontal axis,
When viewed from above, N table support mechanisms are arranged to surround the table and respectively support the table, 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. It was, it was assumed.

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

Further, the table support mechanism includes a vertical movement guide mechanism that suppresses relative left and right movement of the table based on the base and guides the table movably in the vertical direction, and the vertical movement guide mechanism is configured to control the table The unevenness formed on one of the table and the base fits into the unevenness formed on the other side of the table and the base, suppressing relative left and right movement of the table and guiding the table so that it can move freely in the vertical direction. It is a mechanism to do this.
With the configuration of the embodiment according to the present invention, the vertical movement guide mechanism allows the unevenness formed on one of the table and the base to fit into the unevenness formed on the other side of the table and the base. This is a mechanism that suppresses relative horizontal movement of the table and guides the table so as to be movable in the vertical direction.
As a result, with a simple structure, relative left and right movement of the table can be suppressed and the table can be guided in a vertically movable manner.

As explained 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 guided so as to be movable in the vertical direction while suppressing relative left and right movement, and using the base as a base, an upward spring force is generated on the table, and one of the pair of left and right links is guided. An 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. Guided along a pair of trajectories, a spring force is applied to a pair of left and right links in a direction in which they approach each other, and as the pair of left and right trajectories transition in a direction that moves away from each other along the specific horizontal axis, Since the extension is biased to one side in the vertical direction, the support characteristics of the table support mechanism can be selected according to the purpose by selecting the degree to which the pair of left and right tracks are biased in the vertical direction. Increased freedom.
Further, when the pair of left and right tracks transition along the specific horizontal axis in a direction that separates them from each other, they extend so as to be biased toward one end of the link as they transition. By selecting the degree to which the trajectory is biased to one side 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.
Furthermore, since the pair of left and right tracks extend along concave curves, the support characteristics of the table support mechanism can be selected according to the purpose by selecting the degree of bending of the curves of the pair of left and right tracks. This increases the degree of freedom in design.
In addition, the support characteristics of the table support mechanism can be improved by selecting the curvature of the left and right pair of tracks so that the left and right tracks extend along a pair of left and right curves each having a predetermined concave curvature. It can be selected according to the purpose, increasing the degree of freedom in design.
In addition, when one end is an upper end, the right center of curvature of the right track and the left center of curvature of the left track are located above the virtual intersection as a vertical boundary, or one end is located below. Since the right center of curvature of the right orbit and the left center of curvature of the left orbit are positioned below with the virtual intersection as the upper and lower boundary when the end of This increases the degree of freedom in design for the purpose of
In addition, the center of right curvature of the right track is located on the left with the virtual intersection as the border between left and right, and the center of left curvature of the left track is located on the right with the virtual intersection as the border, so the degree of inclination of the track can be controlled. It can be made larger, increasing the degree of freedom in design.
Further, since the pair of left and right links are divided into left and right, and the one rotation center of each of the left and right links is separated by a predetermined distance when viewed horizontally, the degree of freedom in design is increased.
Further, since the pair of left and right links are divided into left and right so that the one rotation center of each of the left and right links coincides with each other when viewed horizontally, the degree of freedom in design is increased.
Further, since the pair of left and right links are divided into left and right, and viewed horizontally, the pair of left and right links intersect between the one rotation center and the other rotation center, which increases the degree of freedom in design. increase.
Moreover, since the pair of left and right links are connected rotatably at the locations where they are sandwiched between and intersect with the one rotation center and the other rotation center, the degree of freedom in design is increased.
Further, one of the table and the base fits into the other of the table and the base,
Since the relative horizontal movement of the table is suppressed and the table is guided so as to be movable in the vertical direction,
With a simple structure, relative left and right movement of the table can be suppressed and the table can be guided in a vertically movable manner.
Further, the table is guided so as to be movable in the vertical direction while suppressing the relative left and right movement of the table based on the base, and an upward spring force is generated on the table using the base as a base, and the pair of left and right links is 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. are guided along a pair of left and right trajectories, and N table support mechanisms that apply a spring force to a pair of left and right links in a direction in which they approach each other are arranged to surround the table and respectively support the table; Since the vertical spring member is a tension spring whose upper portion is connected to the base and whose lower portion is connected to the table, the seismic isolation characteristics of the N table support mechanisms can be adjusted to create a large-scale object support device. can be created, increasing the degree of freedom in design.
Further, one of the table and the base fits into the other of the table and the base,
Since the relative horizontal movement of the table is suppressed and the table is guided so as to be movable in the vertical direction,
With a simple structure, relative left and right movement of the table can be suppressed and the table can be guided in a vertically movable manner.
Therefore, it is possible to provide a seismic isolation device that supports an object with a simple structure and has a seismic isolation function.

FIG. 1 is a conceptual diagram of an object support device according to a first embodiment of the present invention. FIG. 3 is a conceptual diagram of an object support device according to a second embodiment of the present invention. FIG. 7 is a conceptual diagram of an object support device according to a third embodiment of the present invention. FIG. 7 is a conceptual diagram of an object support device according to a fourth embodiment of the present invention. It is a conceptual diagram of the object support device concerning the fifth embodiment of the present invention. It is a conceptual diagram of the object support device concerning the sixth embodiment of the present invention. It is a conceptual diagram of the object support device concerning the seventh embodiment of the present invention. It is a conceptual diagram of the object support device concerning the eighth embodiment of the present invention. It is a conceptual diagram of the object support device concerning the ninth embodiment of the present invention. It is a composite spring reaction force graph of the object support device according to the embodiment of the present invention. It is a comparison graph of the synthetic spring reaction force of the object support device concerning embodiment of this invention. This is a first example of adoption of the object support device according to the embodiment of the present invention. FIG. 2 is a side view of a first example of adoption of the object support device according to the embodiment of the present invention. FIG. 2 is a plan view of a first example of adoption of the object support device according to the embodiment of the present invention. FIG. 6 is a side sectional view of a second example of adoption of the object support device according to the embodiment of the present invention. FIG. 7 is a partial detailed view of the second example of adoption of the object support device according to the embodiment of the present invention. FIG. 7 is a partial detailed view of the second example of adoption of the object support device according to the embodiment of the present invention. FIG. 7 is a partial detailed view of the second example of adoption of the object support device according to the embodiment of the present invention. FIG. 7 is a plan view of a second example of adoption of the object support device according to the embodiment of the present invention. FIG. 2 is a conceptual diagram of a conventional object support device.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The best mode for carrying out the present invention will be described below with reference to the drawings.

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

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

The object support device includes a table 100, a base 200, and a table support mechanism 300.
The table 100 is for placing the object 10 on it.
The base 200 is supported by a foundation.
The table support mechanism 300 is a mechanism that supports the table 100 based on the base 200.
The structure of the table support mechanism 300 will be explained below.

The table support mechanism 300 includes 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 include 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 or the base. 311 along a pair of left and right tracks g extending along a specific horizontal axis x.
For example, the horizontal movement guide mechanism 310 includes a pair of left and right guide blocks 311 that are provided on the base 200 and are spaced apart along a specific horizontal axis x, which is a horizontal axis that extends in a specific horizontal direction with respect to the base 200. and a pair of left and right guide rails 312 that movably guide the pair of left and right guide blocks 311 along a pair of left and right tracks g extending along a specific horizontal axis x.
For example, the horizontal movement guide mechanism 310 is provided on the table 100 and is connected to a pair of left and right guide blocks 311 that are arranged 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 comprised of a pair of left and right guide rails 312 that guide a pair of guide blocks 311 movably 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 designed spring constant.
The vertical spring member 320 may be a compression spring.
For example, the compression spring has a lower end connected to the base 200 and an upper end connected to the table 100 to apply an upward compressive force to the table 100.
The vertical spring member 320 may be a tension spring.
For example, the tension spring has a lower end connected to the table 100 and an upper end connected to the base to apply an upward pulling force to the table 100.
FIG. 1 schematically shows how a compression spring is provided between a table 100 and a base 200.

The link mechanism 330 includes a pair of left and right links 331.
The link mechanism 330 includes a pair of left and right links 331, one connecting shaft 332u, and the other connecting shaft 33.
2d.
For example, the pair of left and right links 331 includes a right link 331r and a left link 331l.
The pair of left and right links 331 have one of the upper end and the lower end fixed to one of the table or the base so as to be rotatable around the rotation center, and the upper end The other end of the lower end is fixed to the guide block 311 so as to be rotatable about the other rotation center.
For example, when the horizontal movement guide mechanism 310 is provided on the base 200, a pair of left and right links 3
31 has one end, which is an upper end, fixed to the table 100 so as to be rotatable around one rotation center, and the other end, which is a lower end, to the guide block 311, which is the rotation center. The other is rotatably fixed around the rotation center.
One connecting shaft 332u rotatably connects one end of the link to the table 100, and the other connecting shaft 332d rotatably connects the other end of the link to the guide block 311.
For example, when the horizontal movement guide mechanism 310 is installed on the table 100, the pair of left and right links 331 have one end, which is the lower end, attached to the base 200, and the other end is rotatable around the rotation center. The other end, which is the upper end, is fixed to the guide block 311 so as to be rotatable about the other rotation center.
One connecting shaft 332u rotatably connects one end of the link to the base 200, and the other connecting shaft 332d rotatably connects the other end of the link to the guide block 311.
In FIG. 1, a pair of left and right links 331 connects one end to the table 100 with a connecting shaft 332.
u, and the other end is rotatably connected to the guide block 311 of the horizontal movement guide mechanism 310 provided on the base 200 by the other connecting shaft 322d. show.

When viewed horizontally so that the pair of left and right links 331 are divided into left and right, one rotation center of each of the pair of left and right links 331 may coincide.
In FIG. 1, a pair of left and right links 331 connects one end to the table 100 with a connecting shaft 332.
u, and the other end is connected to the base 2 by a pair of left and right connecting shafts 322d.
00 is shown rotatably connected to the guide block 311 of the horizontal movement guide mechanism 310 by the other connecting shaft 332d.

The horizontal spring member 340 is a member that applies a spring force to each of the left and right links 331 in a direction in which they approach each other along the specific horizontal axis x.
The horizontal spring member 340 may be a member that applies a spring force to the other ends of the pair of left and right links 331 in a direction toward each other along the specific horizontal axis x.
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 apply a spring force to the other ends of the left and right links 331 in a direction in which they 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 ends of the pair of left and right links 331 in a direction in which they approach each other along the specific horizontal axis x.
For example, a pair of tension springs may apply a spring force to the other ends of the pair of left and right links 331 in a direction in which they 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. A spring force is applied to each of them 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 in which they approach 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 in a direction toward each other along the specific horizontal axis x via the guide block 311.
In FIG. 1, 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 left and right links 331. It is shown that a spring force is applied to each end in a direction toward each other along a specific horizontal axis x.

The vertical movement guide mechanism (not shown) is a mechanism that suppresses relative left and right movement of the table 100 based on the base 200 and guides the table 100 so as to be movable in the vertical direction.
The vertical movement guide mechanism (not shown) may be a mechanism that suppresses the relative left and right movement and rocking movement of the table 100 based on the base 200, and guides the table 100 so as to be movable in the vertical direction.
The 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 as to be movable in the vertical direction.
The vertical movement guide mechanism (not shown) is also called an anti-locking mechanism when it has a function to prevent locking.

When the pair of left and right trajectories g transition in directions that are spaced apart from each other along the specific horizontal axis x, they extend so as to be biased toward one side in the vertical direction as they transition.
The pair of left and right trajectories g may extend upward at a constant ratio as they transition in directions that are spaced apart from each other along the specific horizontal axis x.
FIG. 1 shows that the trajectory g is linear and extends upward at a constant rate as it transitions along directions that are spaced apart from each other along a particular horizontal axis x.

Next, an object support device according to a second embodiment of the present invention will be described. FIG. 2 is a conceptual diagram of an object support 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 vibrations in the vertical direction.
The object support device may be used in combination with a device for isolating horizontal vibrations.

The object support device includes 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 the explanation will be omitted and only the different points will be explained.

When the pair of left and right trajectories g transition in directions that are spaced apart from each other along the specific horizontal axis x, they extend so as to be biased toward one side in the vertical direction as they transition.
The pair of left and right trajectories g may extend downward at a constant ratio as they transition in directions that are spaced apart from each other along the specific horizontal axis x.
FIG. 2 shows that the trajectory g is linear and extends downward at a constant rate as the trajectory transitions along a particular horizontal axis x in directions spaced apart from each other.

Next, an object support device according to a third embodiment of the present invention will be described. FIG. 3 is a conceptual diagram of an object support 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 vibrations in the vertical direction.
The object support device may be used in combination with a device for isolating horizontal vibrations.

The object support device includes 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 the explanation will be omitted and only the different points will be explained.

When the pair of left and right trajectories g transition in directions that are spaced apart from each other along the specific horizontal axis x, they extend so as to be biased toward one side in the vertical direction as they transition.
When the pair of left and right trajectories g transition in directions that are spaced apart from each other along the specific horizontal axis x, they extend so as to be biased upward as they transition.
The pair of left and right tracks may extend along a concave curve.
The 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 that are concave downward and have a predetermined curvature.
FIG. 3 shows a pair of left and right tracks each extending along a pair of left and right curves having a predetermined downward concave curvature, and the radius of curvature R is longer than the length of the link.

Here, for convenience of explanation, the point where the pair of left and right virtual lines intersect, which connects the center of rotation of one side of the pair of left and right links and the center of rotation of the other 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 referred to as a virtual intersection C. To call.
When one end is the upper end, the right curvature center Rc, which is the center of right curvature, which is the predetermined curvature of the right orbit, which is the right orbit of the pair of left and right orbits, and The left curvature center Lc, which is the center of the left curvature that is a predetermined curvature of the left trajectory, which is the left trajectory, may be located above the virtual intersection C as the upper and lower boundary.
When one end is the lower end, the right curvature center Rc, which is the center of right curvature, which is the predetermined curvature of the right orbit, which is the right orbit of the pair of left and right orbits, and The left curvature center Lc, which is the center of the left curvature that is a predetermined curvature of the left trajectory, which is the left trajectory, may be located below the virtual intersection C as an upper and lower boundary.
In FIG. 3, the right curvature center Rc, which is the center of the right curvature, which is the predetermined curvature of the right trajectory of the pair of left and right trajectories, and the left curvature center Lc, which is the center of the left curvature, which is the predetermined curvature of the left trajectory, are shown. The virtual intersection C is shown as being located above as the upper and lower boundary.

Next, an object support device according to a fourth embodiment of the present invention will be described. FIG. 4 is a conceptual diagram of an object support 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 vibrations in the vertical direction.
The object support device may be used in combination with a device for isolating horizontal vibrations.

The object support device includes 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 the explanation will be omitted and only the different points will be explained.

When the pair of left and right trajectories g transition in directions that are spaced apart from each other along the specific horizontal axis x, they extend so as to be biased toward one side in the vertical direction as they transition.
When the pair of left and right trajectories g transition in directions that are spaced apart from each other along the specific horizontal axis x, they extend so as to be biased downward as they transition.
The pair of left and right tracks g may extend along a concave curve.
The 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 that are concave upward and have a predetermined curvature.
FIG. 4 shows a pair of left and right tracks g extending along a pair of left and right curves each having a predetermined curvature concave upward, and the radius of curvature R is longer than the length of the link.

Here, for convenience of explanation, the point where the pair of left and right virtual lines intersect, which connects the center of rotation of one side of the pair of left and right links and the center of rotation of the other 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 referred to as a virtual intersection C. To call.
When one end is the upper end, the right curvature center Rc, which is the center of right curvature, which is the predetermined curvature of the right orbit, which is the right orbit of the pair of left and right orbits, and The left curvature center Lc, which is the center of the left curvature that is a predetermined curvature of the left orbit, which is the left orbit, may be located below the orbit g as an upper and lower boundary.
When one end is the lower end, the right curvature center Rc, which is the center of right curvature, which is the predetermined curvature of the right orbit, which is the right orbit of the pair of left and right orbits, and The left curvature center Lc, which is the center of the left curvature that is a predetermined curvature of the left trajectory, which is the left trajectory, may be located above the trajectory g as the upper and lower boundary.
In FIG. 4, one end is the upper end, and the right curvature center Rc, which is the center of right curvature that is a predetermined curvature of the right orbit, which is the right orbit of the pair of left and right orbits, and the right curvature center Rc, which is the center of right curvature, and The left curvature center Lc, which is the center of the left curvature, which is the predetermined curvature of the left orbit, which is the left orbit of the orbit, is the orbit g.
It is shown that it is located at the bottom with the upper and lower boundaries as the upper and lower boundaries.

Next, an object support device according to a fifth embodiment of the present invention will be described. FIG. 5 is a conceptual diagram of an object support 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 vibrations in the vertical direction.
The object support device may be used in combination with a device for isolating horizontal vibrations.

The object support device includes 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 the explanation will be omitted and only the different points will be explained.

When the pair of left and right trajectories g transition in directions that are spaced apart from each other along the specific horizontal axis x, they extend so as to be biased toward one side in the vertical direction as they transition.
When the pair of left and right trajectories g transition in directions that are spaced apart from each other along the specific horizontal axis x, they extend so as to be biased downward as they transition.
The pair of left and right tracks g may extend along a concave curve.
The 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 that are concave downward and have a predetermined curvature.
FIG. 5 shows a pair of left and right tracks g extending respectively along a pair of left and right curves having a predetermined downward concave curvature, and the radius of curvature R is longer than the length of the link.

Here, for convenience of explanation, the point where the pair of left and right virtual lines connecting the rotation center of one of the left and right links and the rotation center of the other pair when viewed horizontally so as to divide the left and right links 331 into left and right links is defined as the virtual intersection point C. It is 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 with the virtual intersection C as the 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 virtual intersection C as the left and right boundary.
In FIG. 5, the right curvature center Rc, which is the center of right curvature, which is the predetermined curvature of the right trajectory of the pair of left and right trajectories g, and the left curvature center Lc, which is the center of left curvature, which is the predetermined curvature of the left trajectory. is located above the virtual intersection C as the upper and lower boundaries, and the right curvature center Rc, which is the center of right curvature that is the predetermined curvature of the right trajectory of the pair of left and right trajectories g, is located on the left side with the virtual intersection C as the left and right boundaries. It is shown that the left curvature center Lc, which is the center of the left curvature which is a predetermined curvature of the left orbit, is located on the right side with the virtual intersection C as the left and 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 vibrations in the vertical direction.
The object support device may be used in combination with a device for isolating horizontal vibrations.

The object support device includes 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 the explanation will be omitted and only the different points will be explained.

When the pair of left and right trajectories g transition in directions that are spaced apart from each other along the specific horizontal axis x, they extend so as to be biased toward one side in the vertical direction as they transition.
When the pair of left and right trajectories g transition in directions that are spaced apart from each other along the specific horizontal axis x, they extend so as to be biased upward as they transition.
The pair of left and right tracks g may extend along a concave curve.
The 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 that are concave upward and have a predetermined curvature.
FIG. 6 shows a pair of left and right tracks g extending along a pair of left and right curves each having 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 point where the pair of left and right virtual lines intersect, which connects the center of rotation of one side of the pair of left and right links and the center of rotation of the other 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 referred to as a virtual intersection C. To call.
When one end is the upper end, the right curvature center Rc, which is the center of right curvature, which is the predetermined curvature of the right orbit, which is the right orbit of the pair of left and right orbits, and The left curvature center Lc, which is the center of the left curvature that is a predetermined curvature of the left orbit, which is the left orbit, may be located below the orbit g as an upper and lower boundary.
When one end is the lower end, the right curvature center Rc, which is the center of right curvature, which is the predetermined curvature of the right orbit, which is the right orbit of the pair of left and right orbits, and The left curvature center Lc, which is the center of the left curvature that is a predetermined curvature of the left trajectory, which is the left trajectory, may be located above the trajectory g as the upper and lower boundary.
In FIG. 6, one end is the upper end, and the right curvature center Rc, which is the center of right curvature that is a predetermined curvature of the right orbit, which is the right orbit of the pair of left and right orbits, and the right curvature center Rc, which is the center of right curvature, and The left curvature center Lc, which is the center of the left curvature, which is the predetermined curvature of the left orbit, which is the left orbit of the orbit, is the orbit g.
is located below as the upper and lower boundary, and the right curvature center Rc, which is the center of right curvature that is a predetermined curvature of the right trajectory of the pair of left and right trajectories g, is located on the left side with the virtual intersection C as the left and right boundary, It is shown that the left curvature center Lc, which is the center of the left curvature which is a predetermined curvature of the left orbit, is located on the right side with the virtual intersection C as the left and right boundary.

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 vibrations in the vertical direction.
The object support device may be used in combination with a device for isolating horizontal vibrations.

The object support device includes 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 the explanation will be omitted and only the different points will be explained.
The trajectory g may be any trajectory g among the trajectory g of the object support device according to the first to sixth embodiments.

When viewed horizontally so that the pair of left and right links 331 are divided into left and right, one rotation center of each of the pair of left and right links 331 is separated by a predetermined distance.
In FIG. 7, a pair of left and right links 331 are viewed horizontally as if divided into left and right.
31 is shown separated by a predetermined distance H.

Next, an object support device according to an eighth embodiment of the present invention will be described. FIG. 8 is a conceptual diagram of an object support 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 vibrations in the vertical direction.
The object support device may be used in combination with a device for isolating horizontal vibrations.

The object support device includes 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 the explanation will be omitted and only the different points will be explained.
The trajectory g may be any trajectory g among the trajectory g of the object support device according to the first to sixth embodiments.

Here, for convenience of explanation, the point where the pair of left and right virtual lines intersect, which connects the center of rotation of one side and the center of rotation of the other of each pair of left and right links when viewed horizontally as if dividing the pair of left and right links into left and right links, is the virtual intersection point. It is called C.
When viewed horizontally so as to divide the left and right links 331 into left and right, the left and right pairs of links 331 intersect between one rotation center and the other rotation center.
In FIG. 8, a pair of left and right links 331 are viewed horizontally as if divided into left and right.
31 are shown intersecting between one rotation center and the other rotation center of each.

Next, an object support device according to a ninth embodiment of the present invention will be described. FIG. 9 is a conceptual diagram of an object support 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 vibrations in the vertical direction.
The object support device may be used in combination with a device for isolating horizontal vibrations.

The object support device includes 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 the explanation will be omitted and only the different points will be explained.
The trajectory g may be any trajectory g among the trajectory g of the object support device according to the first to sixth embodiments.

Here, for convenience of explanation, the intersection of the pair of left and right imaginary lines connecting one rotation center and the other rotation center of each of the left and right pairs of links 331, when viewed horizontally so as to divide the left and right links 331 into left and right, is It is called virtual intersection C.
Viewed horizontally as if the left and right pairs of links 331 are divided into left and right, the left and right pairs of links intersect between one rotation center and the other rotation center, and the left and right pairs of links 331 intersect between one rotation center and the other rotation center. It is rotatably connected at the point where it is sandwiched between and intersects.
One end of the link 331 is rotatably connected to one guide block 361 of one horizontal movement guide mechanism 360 provided on one of 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 3 arranged apart along a specific horizontal axis x, which is a horizontal axis extending in a specific horizontal direction with respect to one of the table or the base.
61 and a pair of left and right one-way guide rails 362 that guide the left and right one-way guide blocks 361 movably along a pair of left and right tracks extending along a specific horizontal axis x.
In FIG. 9, a pair of left and right links 331 are viewed horizontally as if divided into left and right.
31 intersect between one rotation center and the other rotation center, and a pair of left and right links 331 are rotatably connected at a point where they intersect between one rotation center and the other rotation center, and the links 331 It is shown that one end of the table 100 is rotatably connected to a guide block 361 of a guide mechanism 360 for horizontal movement provided on the table 100.
A link connecting shaft 333 rotatably connects the pair of links 331 at a point where they intersect.
Similarly to selecting the trajectory g of the guide rail 312, the seismic isolation performance can be selected by selecting the trajectory g of the guide rail 362.

Below, the composite spring reaction force of the object support mechanism according to the embodiment of the present invention will be explained based on the drawings.
FIG. 10 is a composite 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 broken 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.
The thin broken line in FIG. 10 is a curve showing the relationship between the vertical displacement (m) of the table 100 and the composite spring reaction force.
By selecting the locus g and the position of one end of the link, the characteristics of the composite spring reaction force can be selected.

FIG. 11 is a comparison graph of the composite spring reaction force of the object support device according to the embodiment of the present invention.
(A) to (D) in FIG. 11 have the same shape and specifications except for the shape of the trajectory of the guide rail,
The trajectory of the guide rail was set as shown below, and the characteristics of the composite spring reaction force were compared.
(A) A third embodiment in which the locus is a downwardly concave curve.
(B) A fourth embodiment in which the locus is an upwardly concave curve.
(C) In the first embodiment, the locus is a straight line that rises as it transitions outward.
(D) In the second embodiment, the locus is a straight line that descends as it transitions outward.
In the figure, the combined spring reaction force represented by a broken line is that of the table support structure shown in FIG. 20, which has a horizontal straight trajectory, and is shown for comparison.
Comparing (A) to (D) in FIG. 11, the following can be seen.

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 virtual intersection C. If the slope of the trajectory is set so that it is located at The spring becomes so-called rigid, the negative slope becomes sharper, the overall spring characteristics combined with the upper and lower springs become flat, and the response characteristics of the object support device that supports the object can be made to have a long period.

When one end of the link is the upper end and the other end guided by the guide rail of the link is the lower end, the center of curvature of the guide rail is located below the trajectory. If the slope of the trajectory is set downward as it transitions from side to side, the spring constant of the negative spring is reduced compared to a conventional table support structure with a horizontal trajectory g, and the spring becomes softer. As a result, the slope of the negative slope becomes blunt, the overall spring characteristic combined with the upper and lower springs becomes sloped, and the response characteristic of the object support device that supports the object can be made to have a short period.

EMBODIMENT OF THE INVENTION Below, the 1st and 2nd example of adoption of the object support apparatus concerning embodiment of this invention is demonstrated based on a figure.
A first example of employment of the object support device according to the embodiment of the present invention is that the object support device is adopted as a stand for supporting a small object.
FIG. 12 is a first example of the adoption of the object support device according to the embodiment of the present invention. FIG. 13 is a side view of the first example of adoption of the object support device according to the embodiment of the present invention. Figure 14 shows
FIG. 2 is a plan view of a first example of adoption of the object support device according to the embodiment of the present invention.
For example, the small object is a work of art.
For example, the stands that support the artwork include a vertical seismic isolation stand 20, a horizontal seismic isolation stand 30, and a glass case 40.
It consists of
The vertical seismic isolation table 20 incorporates an object support device according to an embodiment of the present invention.
The horizontal seismic isolation table 30 is a table that restrains movement in the vertical direction, allows horizontal movement, and generates a damping force in accordance with 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 includes 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.
The table support mechanism 300 includes 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 description of the same configurations as the horizontal movement guide mechanism 310, the vertical spring member 320, the left and right pair of link mechanisms 330, and the horizontal spring member 340 described above will be omitted, and the object support device adopted in the vertical seismic isolation table 20 will be explained. The characteristic configuration will be explained.

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

A horizontal movement guide mechanism 310 is provided on the base 200.
The guide rail 312 is a slit provided in a plate material forming the side surface of the base 200 and formed along the trajectory g.
A guide block 311 has wheels that are guided in slits in a guide rail 312.
The wheels roll along a trajectory g.
(A) in the figure shows one provided with a guide having a straight and horizontal trajectory.
(B) in the figure shows one in which a guide having a linearly inclined locus g is provided.
(C) in the figure shows a guide provided with a downwardly concave curved locus g.

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

The vertical movement guide mechanism 350 suppresses relative horizontal movement of the table 100 by causing the unevenness formed on one side of the table 100 and the base 200 to fit into the unevenness formed on the other side of the table and the base. This is a mechanism that guides the robot in a vertically movable manner.

In a second example of adoption of the object support device according to the embodiment of the present invention, it is adopted as a large-scale stand that supports a large-sized object 10.
FIG. 15 is a side sectional view of the second example of adoption of the object support device according to the embodiment of the present invention. FIG. 19 is a plan view of the second example of adoption of the object support device according to the embodiment of the present invention.

For example, the large object 10 is a reactor.
For example, the platforms supporting the reactor include a plurality of upper and lower base isolation stands 20 and a plurality of upper and lower base isolation stands 20x.
and a plurality of horizontal seismic isolation stands 30.
One of the upper and lower seismic isolation stands 20 and the upper and lower seismic isolation stands 20x has a built-in object support device according to the embodiment of the present invention, and the other of the upper and lower seismic isolation stands 20 and the upper and lower seismic isolation stands 20x is for supporting objects of other types. It may also have a built-in object support device.
For example, the upper and lower seismic isolation stands 20 incorporate the object support device according to the embodiment of the present invention, and the upper and lower seismic isolation stands 20x incorporate other types of object support devices.
The horizontal seismic isolation table 30 is a table that restrains movement in the vertical direction, allows horizontal movement, and generates a damping force in accordance with the horizontal movement.
For example, the horizontal seismic isolation table 30 is a seismic isolation table made by laminating metal plates and rubber plates.

The table support mechanism 300 includes 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 stand 20x has a function of suppressing relative left and right movement of the object 10 and guiding the object 10 so as to be movable in the vertical direction.
The vertical seismic isolation stand 20x has a function of suppressing relative left-right movement, rolling, and pitching of the object 10 and guiding the object 10 so as to be movable in the vertical direction.

Below, examples of the upper and lower seismic isolation stands 20 and the upper and lower seismic isolation stands 20X will be explained based on the drawings.
FIG. 16 is a partial detailed view of the second example of adoption of the object support device according to the embodiment of the present invention. FIG. 17 is a partial detailed view of the second example of adoption of the object support device according to the embodiment of the present invention. FIG. 18 is a partial detailed view of the second example of adoption of the object support device according to the embodiment of the present invention.

FIG. 16 shows an example of the structure of the upper and lower seismic isolation stands 20.
The vertical seismic isolation table 20 shown in FIG. 16 is composed of the table 100, the base 200, the vertical spring member 320, the vertical movement guide mechanism 350, and the locking prevention mechanism 400, among the structures of the table support mechanism 300 of the present invention. , the horizontal movement guide mechanism 310, link mechanism 330, and 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 a compression spring.

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

As shown in FIG. 17, when viewed from above, a vertical seismic isolation table 20x having the structure of the present invention is placed in the center, and a vertical seismic isolation table 20 composed of a vertical spring member 320 is placed around it. It's okay.
The spring constant of the composite spring reaction force of the upper and lower seismic isolation tables 20x is smaller than the spring constant of the composite spring reaction force of the upper and lower seismic isolation tables 20.
When arranged in this way, it is possible to efficiently support the vertical movement of the object and efficiently support the locking of the object.

If the object support device according to the above-described embodiment is used, the following effects will be exhibited.
Using the base 200 as a base, the relative left and right movement of the table 100 is suppressed and the table 100 is guided so as to be movable in the vertical direction, and an upward spring force is generated on the table 100 using the base 200 as a base, and one of the pair of left and right links 331 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 spaced apart along a specific horizontal axis x. The block 311 is guided along a pair of left and right trajectories g, and a spring force is applied to the other ends of the left and right links 331 in a direction in which they approach each other, so that the pair of left and right trajectories g move toward each other along a specific horizontal axis The support characteristics of the table support mechanism 300 can be changed by selecting the extent to which the pair of left and right tracks g are biased toward one side in the vertical direction. can be selected according to the purpose, increasing the degree of freedom in design.
Furthermore, when the pair of left and right trajectories g transition along the specific horizontal axis x in a direction that separates them from each other, they extend so as to be biased toward one end of the link 331 as they transition.
The table support mechanism 300 can be adjusted by selecting the degree to which the pair of left and right tracks g are biased in one direction in the vertical direction.
The support characteristics can be selected according to the purpose, increasing the degree of freedom in design.
Furthermore, since the pair of left and right tracks g extend along concave curves, the support characteristics of the table support mechanism 300 can be selected according to the purpose by selecting the degree of bending of the curves of the pair of left and right tracks. This increases the degree of freedom in design.
In addition, by selecting the curvature of the curve of the pair of left and right tracks g so 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 table support mechanism 30
0 support characteristics can be selected according to the purpose, increasing the degree of freedom in design.
In addition, 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 virtual intersection C as the upper and lower boundary, so The radius of curvature R of the orbit can be made longer, increasing the degree of freedom in designing for longer periods.
In addition, the right curvature center Rc of the right track is located on the left side with virtual intersection C as the border, and the left curvature center Lc of the left track is located on the right side with virtual intersection C as the border between left and right, so that the track inclines. This increases the degree of freedom in design.
Also, when looking horizontally so that the left and right pairs of links 331 are divided into left and right, the left and right pairs of links 33
Since the centers of rotation of each of the parts 1 and 1 are separated by a predetermined distance, the degree of freedom in design increases.
Also, when looking horizontally so that the left and right pairs of links 331 are divided into left and right, the left and right pairs of links 33
Since the centers of rotation of each of the parts 1 and 1 coincide with each other, the degree of freedom in design increases.
Also, when looking horizontally so that the left and right pairs of links 331 are divided into left and right, the left and right pairs of links 33
1 intersects between one rotation center and the other rotation center, increasing the degree of freedom in design.
In addition, the pair of left and right links 331 are rotatably connected at a point where they intersect between one rotation center and the other rotation center, thereby 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 100 and the base 200, so that the relative left and right movement of the table is suppressed and the table is guided so as to be movable in the vertical direction. With this structure, relative left and right movement of the table 100 can be suppressed and the table 100 can be guided in a vertically movable manner.
Further, the table 100 is guided to be movable in the vertical direction while suppressing the relative horizontal movement of the table 100 using the base 200 as a base, and generates an upward spring force on the table 100 using the base 200 as a base. A pair of left and right guide blocks 31, one end of which is rotatably fixed to one of the table 100 or the base 200, and the other end of which is separated along a specific horizontal axis x.
1, a pair of left and right guide blocks 311 are guided along a pair of left and right trajectories g, and a spring force is applied to the other end of the pair of left and right links in a direction in which they approach each other. The support mechanism 300 is arranged to surround the table 100 and support each table 100, and the vertical spring member 320 is a tension spring whose upper part is connected to the base 200 and the lower part is connected to the table 100. Therefore, it is possible to create a large-scale object support device by adjusting the seismic isolation characteristics of the N table support mechanisms 300, increasing the degree of freedom in design.
Furthermore, one of the table 100 and the base 200 is fitted into the other of the table and the base, suppressing the relative left and right movement of the table 100 and guiding the table 100 so that it can move freely in the vertical direction. The structure suppresses relative left and right movement of the table 100 and allows the table 100 to be guided in a vertically movable manner.

The present invention is not limited to the embodiments described above, and various changes can be made 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, the present invention is not limited thereto. For example, the horizontal movement guide mechanism 310 may be provided on the table 100.
Although an example has been described in which a structure in which one rotation center of each of a pair of left and right links is separated by a predetermined 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 distance H may be applied to the second to sixth embodiments.
Although an example has been described in which a structure in which a pair of left and right links intersect is applied to the first embodiment, the present invention is not limited thereto. 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 first embodiment has been described as an example in which a structure in which the intersections of a pair of left and right links are rotatably connected, the present invention is not limited thereto. For example, a structure in which the intersections of a pair of left and right links are 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 Distance 10 Object 20 Vertical base isolation base 20x Vertical base isolation base 30 Horizontal base isolation base 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 side horizontal movement guide mechanism 361 One side guide block 362 One side guide rail 400 Locking prevention mechanism

Japanese Patent Application Publication No. 11-37214 JP2009-168157 JP2008-157288 JP2004-308845 Japanese Patent Application Publication No. 06-193676

Claims (2)

An object support device that supports an object,
A table on which objects can be placed,
a base supported by the foundation;
N table support mechanisms that support the table based on a base;
Equipped with
The table support mechanism includes:
A pair of left and right guide blocks arranged apart along a specific horizontal axis, which is a horizontal axis extending in a specific horizontal direction relative to the other of the table or the base; and a pair of left and right guide blocks arranged along the specific horizontal axis. a horizontal movement guide mechanism having a pair of left and right guide rails that movably guide each one along a pair of left and right tracks that extend along the horizontal axis;
a vertical spring member that generates an upward spring force on the table based on the base;
One end of the upper end or the lower end is fixed to one of the table or the base as a rotation center, and the upper end or the lower end is rotatably fixed around the rotation center. a link mechanism having a pair of left and right links, the other end of which is rotatably fixed to the guide block around the other rotation center;
a horizontal spring member that applies a spring force to each of the left and right pairs of links in a direction in which they approach each other along the specific horizontal axis;
has
When viewed from above, N table support mechanisms are arranged to surround the table and respectively support the table;
The vertical spring member is a tension spring whose upper portion is connected to a base and whose lower portion is connected to a table;
The table support mechanism has a vertical movement guide mechanism that suppresses relative left and right movement of the table based on the base and guides the table movably in the vertical direction,
The vertical movement guide mechanism is provided on the outer periphery of the table when viewed from above, and a portion that is uneven along the outer periphery when viewed from above is arranged at a position of the base surrounding the outer periphery of the table when viewed from above. a mechanism that fits into a convex and concave portion provided on the table and that is uneven along the inner periphery when viewed from above, and suppresses relative left and right movement of the table and guides the table so as to be movable in the vertical direction;
An object support device characterized by: The guide rail is provided on a plate material forming a side surface surrounding the base when viewed from above the base, and has a slit formed along a track and having a pair of stroke ends at both ends along the track,
the guide block is movably guided by the slit of the guide rail along a track;
The object support device according to claim 1, characterized in that:

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