Object support device

Abstract

To provide an object support device which is simplified in structure and can support an object while maintaining a seismic isolation function.SOLUTION: As an alternative to a conventional object support device, an object support device according to the present invention comprises: a table support mechanism for supporting a table with a base as a foundation; and a sliding mechanism having a sliding member which is a horizontally movable member, and generating in the sliding member a resistance acting in a horizontal direction corresponding to a horizontal speed of the sliding member. The table support mechanism includes a link mechanism having a vertical spring member for producing an upward spring force in the table, and a pair of left and right main links. In the main links, one end part of a pair of vertical end parts is rotatably connected to one structure around a rotation center, the other end part is oriented toward a side of the other structure. The other end part of the at least one main link is rotatably connected to the sliding member around the other rotation center as a rotation center.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an object support device for supporting an object. In particular, it relates to an object support device that focuses on the seismic isolation function against vertical vibrations.

Background Art

[0002] Conventionally, several configurations of object support devices in the horizontal direction (for example, seismic isolation tables) 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 an X-Y table, bearings, etc., the spring constant in the horizontal direction is set relatively small so that it can respond to horizontal acceleration vibrations during an earthquake. For example, a mechanism such as a bearing supports the vertical load and suppresses the resistance to horizontal vibrations, effectively exerting the seismic isolation effect.

[0003] On the other hand, there is a demand for an object support device for vertical vibrations that can be realized with a simple configuration and low cost.

[0004] The waves of an earthquake have waves with various periods overlapping, and among them, the components of waves with a period of about 0.5 to 1.0 seconds are prominent. By making the natural period of the object support device in the vertical direction larger than 1 second, resonance of the object support device with respect to earthquake waves can be avoided, and the seismic isolation effect can be enhanced. The larger the natural period of the object support device in the vertical direction is, such as 1 second, 2 seconds, 3 seconds, or 5 seconds, the greater the seismic isolation effect becomes. It is preferably at least about 2 seconds.

[0005] An object support device for vertical vibrations is preferably a seismic isolation device that deflects under a certain load and generates a damping force corresponding to the deflection speed. Also, an object support device for vertical vibrations is preferably a seismic isolation device that deflects vertically under a certain load. Also, an object support device for vertical vibrations is preferably a seismic isolation device that deflects vertically under a certain load and generates a damping force corresponding to the deflection speed. For example, when an object is placed on a table, it will statically flex to a certain position and then statically balance at that equilibrium position. When an earthquake occurs, it will vibrate up and down around that static equilibrium position.

[0006] The applicant has devised a seismic isolation device characterized by a table on which an object is placed and which moves up and down relative to a base, a vertical spring member installed between the table and the base which generates a vertical spring force in accordance with the vertical movement of the table, and a damping force which is generated in accordance with the vertical movement of the table. In the process of developing the invention, the applicant devised a seismic isolation device characterized by having a table on which an object is placed and which moves vertically up and down relative to a base, and a vertical spring member installed between the table and the base, which generates a vertical spring force in accordance with the vertical movement of the table. [Overview of the Initiative] [Problems that the invention aims to solve]

[0007] The market desires a simpler structure for the object support device devised by the applicant, while maintaining its seismic isolation function.

[0008] This invention was devised in view of the problems described above, and aims to provide an object support device that can support an object with a simpler structure while maintaining seismic isolation functionality. [Means for solving the problem]

[0009] To achieve the above objective, the object support device according to the present invention comprises a table on which an object can be placed, a base supported on a foundation, a table support mechanism that supports the table on the base, and a slide mechanism that has a slide member which is a horizontally movable member and generates a horizontal resistance force acting on the slide member corresponding to the horizontal speed of the slide member, wherein the table support mechanism has a link mechanism that has a vertical spring member which generates an upward spring force on the table on the base and a pair of left and right main links, the main links are elongated members which are inclined in the longitudinal direction and one end of a pair of upper and lower ends is connected to one structure so as to be rotatable around one rotation center which is the center of rotation and the other end is directed toward the other structure, and the other end of at least one of the main links is connected to the slide member so as to be rotatable around the other rotation center which is the center of rotation, Here, when one end of the main link is the upper end, the one structure is the table and the other structure is the base, and when one end of the main link is the lower end, the one structure is the base and the other structure is the table.

[0010] With the above configuration of the present invention, the table support mechanism is a mechanism that supports the table on the base. The slide mechanism has a slide member which is a horizontally movable member and is a mechanism that generates a horizontally acting resistance force on the slide member corresponding to the horizontal speed of the slide member. The table support mechanism has a link mechanism which has a vertical spring member and a pair of left and right main links. The vertical spring member is a member which generates an upward spring force on the table on the base. The main links are elongated members which are inclined in the longitudinal direction and are links in which one end of a pair of upper and lower ends is rotatably connected to one structure around one rotation center which is the center of rotation, and the other end is directed toward the other structure. The other end of at least one of the main links is rotatably connected to the slide member around the other rotation center which is the center of rotation. Here, when one end of the main link is the upper end, the one structure is the table and the other structure is the base, and when one end of the main link is the lower end, the one structure is the base and the other structure is the table. As a result, a damping force is generated that corresponds to the resistance force acting on the sliding member in response to the vertical movement of the table.

[0011] The 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 two or more of them combined.

[0012] Furthermore, the link mechanism comprises a pair of left and right main links and a pair of left and right support links, wherein the support links are elongated members whose longitudinal direction is inclined in the opposite direction to the inclination direction of the main links, and one end of a pair of upper and lower ends is rotatably connected to the main links around the rotation center of the one support, which is the rotation center, and the other end is rotatably connected to the other structure around the rotation center of the other support, which is the rotation center. In the configuration of the embodiment of the present invention described above, the support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination direction of the main link, and one end of a pair of upper and lower ends is rotatably connected to the main link around the rotation center of the first support, which is the rotation center, and the other end is rotatably connected to the other structure around the rotation center of the second support, which is the rotation center. As a result, when the table moves up and down, the tilt of the support links changes in accordance with the change in the tilt of the main links, allowing the link structure to change stably.

[0013] Furthermore, the center of rotation of one support is located on the main link central axis connecting the center of rotation of one support and the other center of rotation, and the distance between the center of rotation of one support and the center of rotation of one support and the distance between the center of rotation of one support and the other center of rotation and the distance between the center of rotation of one support and the other center of rotation are approximately equal. In the configuration of the embodiment according to the present invention described above, the one support rotation center is located on the main link central axis connecting the one rotation center and the other rotation center. The distance between the one rotation center and the one support rotation center, the distance between the one support rotation center and the other rotation center, and the distance between the one support rotation center and the other support rotation center are approximately equal. As a result, the table moves up and down stably.

[0014] Furthermore, the one rotation center of at least one main link is fixed to one structure so as to be immovable relative to it, and the sliding member is constrained to move up and down but is able to move horizontally. In the configuration of the embodiment of the present invention described above, the one rotation center of at least one main link is fixed to the one structure so as not to move relative to it. The sliding member is constrained to move up and down, but is able to move horizontally. As a result, when the table moves up and down, the one rotation center moves along a straight line extending vertically.

[0015] Furthermore, the link mechanism further comprises a pair of left and right second main links, each of which is a long member that inclins in the longitudinal direction, and one of its upper and lower ends is rotatably connected to one structure around a second rotation center which is the rotation center, and the other end is directed toward the other structure, and at least one of the other ends of the second main link is rotatably connected to the slide member around a second rotation center which is the rotation center. In the configuration of the embodiment of the present invention described above, the link mechanism has a pair of left and right main links and a pair of left and right second main links. Alternatively, the link mechanism has a pair of left and right main links, a pair of left and right support links and a pair of left and right second main links. The second main link is an elongated member that inclins in the longitudinal direction, and one end of a pair of upper and lower ends is rotatably connected to one structure around a second rotation center which is the rotation center, and the other end is directed toward the other structure. At least one of the other ends of the second main link is rotatably connected to the slide member around the other rotation center which is the rotation center. As a result, the resistance force generated in the sliding member as the table moves up and down is stably transmitted to the table.

[0016] Furthermore, the link mechanism further comprises a pair of left and right second main links and a pair of left and right interlocking links. The second main links are elongated members that incline in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a second rotation center which is the rotation center, and the other end facing the other structure. At least one of the other ends of the second main links is rotatably connected to the slide member around a second rotation center which is the rotation center. The interlocking links are elongated members that make the longitudinal direction horizontal, with one end of a pair of left and right ends rotatably connected to the main link around a first interlocking rotation center which is the rotation center, and the other end rotatably connected to the second main link around a second interlocking rotation center which is the rotation center. In the configuration of the embodiment of the present invention described above, the link mechanism has a pair of left and right main links, a pair of left and right second main links, and a pair of left and right interlocking links. Alternatively, the link mechanism has a pair of left and right main links, a pair of left and right support links, a pair of left and right second main links, and a pair of left and right interlocking links. The second main link is an elongated member that inclins in the longitudinal direction, and one end of a pair of upper and lower ends is rotatably connected to one structure around a second rotation center which is the rotation center, and the other end is directed toward the other structure. At least one of the other ends of the second main link is rotatably connected to the slide member around a second rotation center which is the rotation center. The interlocking link is an elongated member that makes the longitudinal direction horizontal, and one end of a pair of left and right ends is rotatably connected to the main link around a first interlocking rotation center which is the rotation center, and the other end is rotatably connected to the second main link around a second interlocking rotation center which is the rotation center. As a result, the table moves up and down stably.

[0017] Furthermore, the link mechanism further comprises a pair of left and right second main links, a pair of left and right second support links, and a pair of left and right interlocking links. The second main links are elongated members that incline in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a second rotation center which is the rotation center, and the other end facing the other structure. At least one of the other ends of the second main links is rotatably connected to the slide member around the other rotation center which is the rotation center, and the second support links incline in the longitudinal direction in the opposite direction to the inclination of the second main links. The elongated member is a link in which one end of a pair of upper and lower ends is rotatably connected to the second main link around a second support rotation center which is the rotation center, and the other end is rotatably connected to the other structure around a second support rotation center which is the rotation center, and the interlocking link is an elongated member whose elongated direction is horizontal, and one end of a pair of left and right ends is rotatably connected to the main link around a first interlocking rotation center which is the rotation center, and the other end is rotatably connected to the second main link around a second interlocking rotation center which is the rotation center. With the configuration of the above embodiment of the present invention, The link mechanism comprises a pair of left and right main links, a pair of left and right second main links, a pair of left and right second support links, and a pair of left and right interlocking links. Alternatively, the link mechanism comprises a pair of left and right main links, a pair of left and right support links, a pair of left and right second main links, a pair of left and right second support links, and a pair of left and right interlocking links. The second main link is a long member that inclines in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a first second rotation center which is the rotation center, and the other end facing the other structure. At least one of the other ends of the second main link is rotatably connected to the slide member around a second rotation center which is the rotation center. The second support link is a long member that inclines in the longitudinal direction in the opposite direction to the inclination of the second main link, with one end of a pair of upper and lower ends rotatably connected to the second main link around a first second support rotation center which is the rotation center, and the other end rotatably connected to the other structure around a second second support rotation center which is the rotation center. The aforementioned interlocking link is a long member whose longitudinal direction is horizontal, and one end of a pair of left and right ends is rotatably connected to the main link around the first interlocking rotation center, which is the rotation center, and the other end is rotatably connected to the second main link around the second interlocking rotation center, which is the rotation center. As a result, the link mechanism changes stably in accordance with the vertical movement of the table.

[0018] Furthermore, the one linked rotation center coincides with the one second support rotation center, which is the rotation center at one end of the second support link, and the other linked rotation center coincides with the one support rotation center. In the configuration of the embodiment according to the present invention described above, the one interlocking rotation center coincides with the one second support rotation center, which is the rotation center at one end of the second support link. The other interlocking rotation center coincides with the one support rotation center. As a result, the link structure becomes simpler.

[0019] Furthermore, the link mechanism further comprises a pair of left and right upper guide links, a pair of left and right lower guide links, and a pair of left and right interlocking links. The upper guide links are elongated members that tilt in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a rotation center of the upper guide, which is the rotation center, and the other end rotatably connected to one end of a pair of upper and lower ends of the lower guide link around a rotation center of the lower guide, which is the rotation center. The lower guide links are elongated members that tilt in the longitudinal direction in the opposite direction to the tilt of the upper guide links, with the other end of a pair of upper and lower ends rotatably connected to the other structure around a rotation center of the lower guide, which is the rotation center. The interlocking links are elongated members that make the longitudinal direction horizontal, with one end rotatably connected to a main link or one of the support links around a rotation center of the interlocking link, and the other end of a pair of left and right ends rotatably connected to one of the upper guide links or the lower guide links around a rotation center of the other interlocking link. In the configuration of the embodiment of the present invention described above, the link mechanism comprises a pair of left and right main links, a pair of left and right support links, a pair of left and right upper guide links, a pair of left and right lower guide links, and a pair of left and right interlocking links. The upper guide link is a long member that is inclined in the longitudinal direction, and one end of a pair of upper and lower ends is rotatably connected to one structure around the rotation center of the upper guide, which is the rotation center, and the other end is rotatably connected to one end of a pair of upper and lower ends of the lower guide link around the rotation center of the lower guide, which is the rotation center. The lower guide link is a long member that is inclined in the longitudinal direction in the opposite direction to the inclination of the upper guide link, and the other end of a pair of upper and lower ends is rotatably connected to the other structure around the rotation center of the lower guide, which is the rotation center. The aforementioned interlocking link is a long member whose longitudinal direction is horizontal, and one end is rotatably connected to one of the main links or the support links around the one interlocking rotation center, and the other end of the pair of left and right ends is rotatably connected to one of the upper guide links or the lower guide links around the other interlocking rotation center. As a result, the link mechanism changes stably as the table moves up and down.

[0020] Further, the table support mechanism includes the vertical spring member, the link mechanism, and a locking prevention mechanism. The locking prevention mechanism supports the table based on the base, restricts relative horizontal movement between the table and the base, and enables movement in the vertical direction. With the configuration of the embodiment according to the present invention, the table support mechanism includes the vertical spring member, the link mechanism, and the locking prevention mechanism. The locking prevention mechanism supports the table based on the base, restricts relative horizontal movement between the table and the base, and enables movement in the vertical direction. As a result, the table moves up and down stably.

[0021] Further, the slide mechanism includes the slide member and a slide guide member that restricts vertical movement of the slide member and enables horizontal movement. With the configuration of the embodiment according to the present invention, the slide mechanism includes the slide member and a slide guide member that restricts vertical movement of the slide member and enables horizontal movement. As a result, the vertical movement of the slide member is restricted and it can move horizontally.

[0022] Further, the slide guide member includes a rail-shaped member and a wheel-shaped member that is restricted from moving vertically on the rail-shaped member and enables horizontal movement. The wheel-shaped member supports the slide member. With the configuration of the embodiment according to the present invention, the slide guide member includes a rail-shaped member and a wheel-shaped member that is restricted from moving vertically on the rail-shaped member and enables horizontal movement. The wheel-shaped member supports the slide member. As a result, the vertical movement of the slide member is restricted and it can move horizontally stably.

[0023] To achieve the above objective, the object support device for supporting an object according to the present invention comprises a table on which an object can be placed, a base supported on a foundation, a table support mechanism that supports the table on the base, and a slide mechanism having a slide member which is a member whose vertical movement is restrained and which is capable of horizontal movement. The table support mechanism has a link mechanism which has a vertical spring member that generates an upward spring force on the table on the base, and a pair of left and right main links. The main links are elongated members that are inclined in the longitudinal direction, and one end of a pair of upper and lower ends is rotatably connected to one structure around a rotation center which is the center of rotation, and the other end is directed toward the other structure. At least one of the other ends of the main links is rotatably connected to the slide member around a rotation center which is the center of rotation. Here, when one end of the main link is the upper end, the one structure is the table and the other structure is the base, and when one end of the main link is the lower end, the one structure is the base and the other structure is the table.

[0024] With the configuration of the present invention described above, the table can place an object on it. The base is supported by a foundation. The table support mechanism supports the table using the base as its foundation. The sliding mechanism has a sliding member which is a member that is restricted from vertical movement but is capable of horizontal movement. The table support mechanism has a link mechanism which has a vertical spring member and a pair of left and right main links. The vertical spring member generates an upward spring force on the table using the base as its foundation. The main link is a long member that is inclined in the longitudinal direction, and one end of a pair of upper and lower ends is rotatably connected to one structure around one rotation center, which is the center of rotation, and the other end is directed toward the other structure. At least one of the other ends of the main link is rotatably connected to the slide member around the other rotation center, which is the center of rotation. Here, when one end of the main link is the upper end, the one structure is the table and the other structure is the base, and when one end of the main link is the lower end, the one structure is the base and the other structure is the table. As a result, the table moves up and down stably.

[0025] The 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 two or more of them combined.

[0026] Furthermore, the link mechanism comprises a pair of left and right main links and a pair of left and right support links, wherein the support links are elongated members whose longitudinal direction is in the opposite direction to the inclination of the main links, and one end of each is rotatably connected to the pair of left and right main links around a rotation center of one support, which is the rotation center, and the other end of each is rotatably connected to the other structure around a rotation center of the other support, which is the rotation center. In the configuration of the embodiment of the present invention described above, the support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination direction of the main link, and one end is connected to a pair of left and right main links so as to be rotatable around the rotation center of one support, which is the rotation center, and the other end is connected to the other structure so as to be rotatable around the rotation center of the other support, which is the rotation center. As a result, when the table moves up and down, the tilt of the support links changes in accordance with the change in the tilt of the main links, allowing the link structure to change stably.

[0027] Furthermore, the center of rotation of one support is located on the main link central axis connecting the center of rotation of one support and the other center of rotation, and the distance between the center of rotation of one support and the center of rotation of one support and the distance between the center of rotation of one support and the other center of rotation and the distance between the center of rotation of one support and the other center of rotation are approximately equal. In the configuration of the embodiment according to the present invention described above, the one support rotation center is located on the main link central axis connecting the one rotation center and the other rotation center. The distance between the one rotation center and the one support rotation center, the distance between the one support rotation center and the other rotation center, and the distance between the one support rotation center and the other support rotation center are approximately equal. As a result, the table moves up and down stably.

[0028] Furthermore, the one rotation center of at least one main link is fixed to one structure so as to be immovable relative to it, and the sliding member is constrained to move up and down but is able to move horizontally. In the configuration of the embodiment of the present invention described above, the one rotation center of at least one main link is fixed to the one structure so as not to move relative to it. The sliding member is constrained to move up and down but is able to move horizontally. As a result, when the table moves up and down, the one rotation center moves along a straight line extending vertically.

[0029] Furthermore, the link mechanism further comprises a pair of left and right second main links, each of which is a long member that inclins in the longitudinal direction, and one of its upper and lower ends is rotatably connected to one structure around a second rotation center which is the rotation center, and the other end is directed toward the other structure, and at least one of the other ends of the second main link is rotatably connected to the slide member around a second rotation center which is the rotation center. In the configuration of the embodiment of the present invention described above, the link mechanism has a pair of left and right main links and a pair of left and right second main links. Alternatively, the link mechanism has a pair of left and right main links, a pair of left and right support links and a pair of left and right second main links. The second main link is an elongated member that inclins in the longitudinal direction, and one end of a pair of upper and lower ends is rotatably connected to one structure around a second rotation center which is the rotation center, and the other end is directed toward the other structure. At least one of the other ends of the second main link is rotatably connected to the slide member around the other rotation center which is the rotation center. As a result, the table moves up and down stably.

[0030] Furthermore, the link mechanism further comprises a pair of left and right second main links and a pair of left and right interlocking links. The second main links are elongated members that incline in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a second rotation center which is the rotation center, and the other end facing the other structure. At least one of the other ends of the second main links is rotatably connected to the slide member around a second rotation center which is the rotation center, and the interlocking links are elongated members that make the longitudinal direction horizontal, with one end of a pair of left and right ends rotatably connected to the main link around a first interlocking rotation center which is the rotation center, and the other end of the interlocking links is rotatably connected to the second main link around a second interlocking rotation center which is the rotation center. In the configuration of the embodiment of the present invention described above, the link mechanism has a pair of left and right main links, a pair of left and right second main links, and a pair of left and right interlocking links. Alternatively, the link mechanism has a pair of left and right main links, a pair of left and right support links, a pair of left and right second main links, and a pair of left and right interlocking links. The second main link is an elongated member that inclins in the longitudinal direction, and one end of a pair of upper and lower ends is rotatably connected to one structure around a second rotation center which is the rotation center, and the other end is directed toward the other structure. At least one of the other ends of the second main link is rotatably connected to the slide member around a second rotation center which is the rotation center. The interlocking link is an elongated member that makes the longitudinal direction horizontal, and one end of a pair of left and right ends is rotatably connected to the main link around a first interlocking rotation center which is the rotation center, and the other end is rotatably connected to the second main link around a second interlocking rotation center which is the rotation center. As a result, the table moves up and down stably.

[0031] Furthermore, the link mechanism further comprises a pair of left and right second main links, a pair of left and right second support links, and a pair of left and right interlocking links. The second main links are elongated members that incline in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a second rotation center which is the rotation center, and the other end facing the other structure. At least one of the other ends of the second main links is rotatably connected to the slide member around the other rotation center which is the rotation center, and the second support links incline in the longitudinal direction in the opposite direction to the inclination of the second main links. The elongated member is a link in which one end of a pair of upper and lower ends is rotatably connected to the second main link around a second support rotation center which is the rotation center, and the other end is rotatably connected to the other structure around a second support rotation center which is the rotation center, and the interlocking link is an elongated member whose elongated direction is horizontal, and one end of a pair of left and right ends is rotatably connected to the main link around a first interlocking rotation center which is the rotation center, and the other end is rotatably connected to the second main link around a second interlocking rotation center which is the rotation center. In the configuration of the embodiment of the present invention described above, the link mechanism has a pair of left and right main links, a pair of left and right second main links, a pair of left and right second support links, and a pair of left and right interlocking links. Alternatively, the link mechanism has a pair of left and right main links, a pair of left and right support links, a pair of left and right second main links, a pair of left and right second support links, and a pair of left and right interlocking links. The second main links are elongated members that incline in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a first second rotation center which is the rotation center, and the other end facing the other structure. At least one of the other ends of the second main links is rotatably connected to the slide member around a second rotation center which is the rotation center. The second support links are elongated members that incline in the longitudinal direction in the opposite direction to the inclination of the second main links, with one end of a pair of upper and lower ends rotatably connected to the second main links around a first second support rotation center which is the rotation center, and the other end rotatably connected to the other structure around a second second support rotation center which is the rotation center. The aforementioned interlocking link is a long member whose longitudinal direction is horizontal, and one end of a pair of left and right ends is rotatably connected to the main link around the first interlocking rotation center, which is the rotation center, and the other end is rotatably connected to the second main link around the second interlocking rotation center, which is the rotation center. As a result, the link mechanism changes stably in accordance with the vertical movement of the table.

[0032] Furthermore, the one linked rotation center coincides with the one second support rotation center, which is the rotation center at one end of the second support link, and the other linked rotation center coincides with the one support rotation center. In the configuration of the embodiment of the present invention described above, the one interlocking rotation center coincides with the one second support rotation center, which is the rotation center at one end of the second support link, and the other interlocking rotation center coincides with the one support rotation center. As a result, the link structure becomes simpler.

[0033] Furthermore, the link mechanism further comprises a pair of left and right upper guide links, a pair of left and right lower guide links, and a pair of left and right interlocking links. The upper guide links are elongated members that tilt in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a rotation center of the upper guide, which is the rotation center, and the other end rotatably connected to one end of a pair of upper and lower ends of the lower guide link around a rotation center of the lower guide, which is the rotation center. The lower guide links are elongated members that tilt in the longitudinal direction in the opposite direction to the tilt of the upper guide links, with the other end of a pair of upper and lower ends rotatably connected to the other structure around a rotation center of the lower guide, which is the rotation center. The interlocking links are elongated members that make the longitudinal direction horizontal, with one end rotatably connected to a main link or one of the support links around a rotation center of the interlocking link, and the other end of a pair of left and right ends rotatably connected to one of the upper guide links or the lower guide links around a rotation center of the other interlocking link. In the configuration of the embodiment of the present invention described above, the link mechanism comprises a pair of left and right main links, a pair of left and right support links, a pair of left and right upper guide links, a pair of left and right lower guide links, and a pair of left and right interlocking links. The upper guide link is a long member that is inclined in the longitudinal direction, and one end of a pair of upper and lower ends is rotatably connected to one structure around the rotation center of the upper guide, which is the rotation center, and the other end is rotatably connected to one end of a pair of upper and lower ends of the lower guide link around the rotation center of the lower guide, which is the rotation center. The lower guide link is a long member that is inclined in the longitudinal direction in the opposite direction to the inclination of the upper guide link, and the other end of a pair of upper and lower ends is rotatably connected to the other structure around the rotation center of the lower guide, which is the rotation center. The aforementioned interlocking link is a long member whose longitudinal direction is horizontal, and one end is rotatably connected to one of the main links or the support links around the one interlocking rotation center, and the other end of the pair of left and right ends is rotatably connected to one of the upper guide links or the lower guide links around the other interlocking rotation center. As a result, the link mechanism changes stably in accordance with the vertical movement of the table.

[0034] Furthermore, the table support mechanism comprises the vertical spring member, the link mechanism, and the locking prevention mechanism, wherein the locking prevention mechanism supports the table on the base, restricting the relative horizontal movement between the table and the base, and allowing it to move freely in the vertical direction. In the embodiment of the present invention described above, the table support mechanism comprises the vertical spring member, the link mechanism, and the locking prevention mechanism. The locking prevention mechanism supports the table on the base and restrains the relative horizontal movement between the table and the base, allowing it to move freely in the vertical direction. As a result, the table moves up and down stably.

[0035] Furthermore, the sliding mechanism includes the sliding member and a sliding guide member that restricts the vertical movement of the sliding member and allows for horizontal movement. In the configuration of the embodiment of the present invention described above, the slide mechanism includes the slide member and a slide guide member that restrains the vertical movement of the slide member and is capable of horizontal movement. As a result, the sliding member is restricted from vertical movement and can move horizontally.

[0036] Furthermore, the slide guide member has a rail-shaped member and a wheel-shaped member whose vertical movement is constrained by the rail-shaped member but which is capable of horizontal movement, and the wheel-shaped member supports the slide member. In the configuration of the embodiment of the present invention described above, the slide guide member has a rail-shaped member and a wheel-shaped member whose vertical movement is constrained by the rail-shaped member and which is capable of horizontal movement, and the wheel-shaped member supports the slide member. As a result, the sliding member is restricted from vertical movement and can move horizontally stably. [Effects of the Invention]

[0037] As described above, the object support device according to the present invention has the following effects due to its procedure and configuration. When one of the base and the table is referred to as the "one structure" and the other as the "other structure," an upward spring force is generated on the table using the base as a foundation. One end of a pair of left and right main links, which are inclined in the longitudinal direction, is rotatably connected to the one structure, and the other end is rotatably connected to a sliding member that moves horizontally toward the other structure and is subjected to a resistance force corresponding to the horizontal speed. As a result, a damping force is generated in response to the resistance force acting on the sliding member in accordance with the vertical movement of the table. One end of the support link, which is tilted in the opposite direction to the main link, is rotatably connected to the main link, and the other end is rotatably connected to the other structure. As the table moves up and down, the tilt of the support link changes in accordance with the change in the tilt of the main link, and the link structure changes stably. Since the distance between the one rotation center and the one support rotation center, the distance between the one support rotation center and the other rotation center, and the distance between the one support rotation center and the other support rotation center are made approximately equal, the table moves up and down stably. The distance between the one rotation center and the one support rotation center, the distance between the one support rotation center and the other rotation center, and the distance between the one support rotation center and the other support rotation center are approximately equal, and the one rotation center is fixed to the one structure so as to be immovable relative to it, and the sliding member is constrained to move up and down, so that when the table moves up and down, the one rotation center moves along a straight line that extends vertically. One end of a pair of left and right second main links, which are inclined in the longitudinal direction, is rotatably connected to one structure, and the other end facing the other structure is rotatably connected to a sliding member that moves horizontally and is subjected to a resistance force corresponding to the horizontal speed. As a result, the resistance force generated in the sliding member as the table moves up and down is stably transmitted to the table. Since one end of a pair of interlocking links, oriented horizontally in the longitudinal direction, is rotatably connected to the main link and the other end is rotatably connected to the second main link, the table moves up and down stably. A second main link, tilted longitudinally, is rotatably connected at one end to one structure and at the other end to the other structure, and at the other end is rotatably connected to a sliding member toward the other structure. A second support link, tilted longitudinally in the opposite direction, is rotatably connected at one end to the second main link and at the other end to the other structure. An interlocking link, horizontally oriented longitudinally, is rotatably connected at one end to the main link and at the other end to the second support link. As a result, the link mechanism changes stably in accordance with the vertical movement of the table. Since the aforementioned one-way linked rotation center coincides with the aforementioned one-way second support rotation center, and the other-way linked rotation center coincides with the aforementioned one-way support rotation center, the link structure becomes simpler. The upper guide link, which tilts in the longitudinal direction, is rotatably connected at one end to one structure and at the other end to one end of the lower guide link; the lower guide link, which tilts in the longitudinal direction in the opposite direction, is rotatably connected at the other end to the other structure; and the interlocking link, which makes the longitudinal direction horizontal, is rotatably connected at one end to the lower guide link and at the other end to the support link. As a result, the link mechanism changes stably in accordance with the vertical movement of the table. By restricting the relative horizontal movement between the table and the base while allowing free vertical movement, the table moves up and down stably. The sliding mechanism includes a sliding member and a sliding guide member that restricts the vertical movement of the sliding member while allowing horizontal movement. As a result, the sliding member is restricted from moving up and down and can move horizontally. The slide guide member has a rail-shaped member and a wheel-shaped member that is restricted from vertical movement by the rail-shaped member and is capable of horizontal movement. The wheel-shaped member supports the slide member, so that the slide member is restricted from vertical movement and can move horizontally stably.

[0038] Furthermore, as described above, the object support device according to the present invention has the following effects due to its procedure and configuration. When one of the base and the table is referred to as the "one structure" and the other as the "other structure," the base serves as the foundation upon which an upward spring force is generated on the table. One end of a pair of left and right main links, which are inclined in the longitudinal direction, is rotatably connected to the one structure, while the other end is rotatably connected to a sliding member that moves horizontally but is restricted from vertical movement, facing the other structure. As a result, the table moves up and down stably. One end of the support link, which is tilted in the opposite direction to the main link, is rotatably connected to the main link, and the other end is rotatably connected to the other structure. As the table moves up and down, the tilt of the support link changes in accordance with the change in the tilt of the main link, and the link structure changes stably. Since the distance between the one rotation center and the one support rotation center, the distance between the one support rotation center and the other rotation center, and the distance between the one support rotation center and the other support rotation center are made approximately equal, the table moves up and down stably. The distance between the one rotation center and the one support rotation center, the distance between the one support rotation center and the other rotation center, and the distance between the one support rotation center and the other support rotation center are approximately equal, and the one rotation center is fixed to the one structure so as to be immovable relative to it, and the sliding member is constrained to move up and down, so that when the table moves up and down, the one rotation center moves along a straight line that extends vertically. One end of a pair of left and right second main links, which are inclined in the longitudinal direction, is rotatably connected to one structure, and the other end facing the other structure is rotatably connected to a sliding member that is restricted from vertical movement but moves horizontally, so that the table moves up and down stably. Since one end of a pair of interlocking links, oriented horizontally in the longitudinal direction, is rotatably connected to the main link and the other end is rotatably connected to the second main link, the table moves up and down stably. A second main link, tilted longitudinally, is rotatably connected at one end to one structure and at the other end to the other structure, and at the other end is rotatably connected to a sliding member toward the other structure. A second support link, tilted longitudinally in the opposite direction, is rotatably connected at one end to the second main link and at the other end to the other structure. An interlocking link, horizontally oriented longitudinally, is rotatably connected at one end to the main link and at the other end to the second support link. As a result, the link mechanism changes stably in accordance with the vertical movement of the table. Since the aforementioned one-way linked rotation center coincides with the aforementioned one-way second support rotation center, and the other-way linked rotation center coincides with the aforementioned one-way support rotation center, the link structure becomes simpler. The upper guide link, which tilts in the longitudinal direction, is rotatably connected at one end to one structure and at the other end to one end of the lower guide link; the lower guide link, which tilts in the longitudinal direction in the opposite direction, is rotatably connected at the other end to the other structure; and the interlocking link, which makes the longitudinal direction horizontal, is rotatably connected at one end to the lower guide link and at the other end to the support link. As a result, the link mechanism changes stably in accordance with the vertical movement of the table. By restricting the relative horizontal movement between the table and the base while allowing free vertical movement, the table moves up and down stably. The sliding mechanism includes a sliding member and a sliding guide member that restricts the vertical movement of the sliding member while allowing horizontal movement. As a result, the sliding member is restricted from moving up and down and can move horizontally. The slide guide member has a rail-shaped member and a wheel-shaped member that is restricted from vertical movement by the rail-shaped member and is capable of horizontal movement. The wheel-shaped member supports the slide member, so that the slide member is restricted from vertical movement and can move horizontally stably. Therefore, it is possible to provide an object support device that can support an object while maintaining seismic isolation functionality and simplifying its structure. [Brief explanation of the drawing]

[0039] [Figure 1]This is a conceptual diagram of an object support device according to the first embodiment of the present invention. [Figure 2] This is a conceptual diagram of an object support device according to a second embodiment of the present invention. [Figure 3] This is a conceptual diagram of an object support device according to a third embodiment of the present invention. [Figure 4] This is a conceptual diagram of an object support device according to a fourth embodiment of the present invention. [Figure 5] This is a conceptual diagram of an object support device according to the fifth embodiment of the present invention. [Figure 6] This is a conceptual diagram of an object support device according to the sixth embodiment of the present invention. [Figure 7] This is a conceptual diagram of an object support device according to the seventh embodiment of the present invention. [Figure 8] This is a conceptual diagram of an object support device according to the eighth embodiment of the present invention. [Figure 9] This is a conceptual diagram of an object support device according to the ninth embodiment of the present invention. [Figure 10] This is a conceptual diagram of an object support device according to ten embodiments of the present invention. [Figure 11] This is a conceptual diagram of an object support device according to an eleventh embodiment of the present invention. [Figure 12] This is a conceptual diagram of an object support device according to twelve embodiments of the present invention. [Figure 13] This is a conceptual diagram of a slide mechanism according to the first embodiment of the present invention. [Figure 14] This is a conceptual diagram of a slide mechanism according to a second embodiment of the present invention. [Figure 15] This is a conceptual diagram of a slide mechanism according to a third embodiment of the present invention. [Figure 16] This is a conceptual diagram of a slide mechanism according to a fourth embodiment of the present invention. [Modes for carrying out the invention]

[0040] The best mode for carrying out the present invention will be described below with reference to the drawings. First, an object support device according to an embodiment of the present invention will be described.

[0041] An object support device is a device that supports an object. Object support devices are used in devices that support objects and isolate them from vertical vibrations. The object support device may be used in combination with a device that isolates horizontal vibrations.

[0042] The object support device consists of a table 100, a base 200, a table support mechanism 300, and a sliding mechanism 400. Table 100 is for placing objects on. Base 200 is supported by the foundation. The table support mechanism 300 is a mechanism that supports the table 100 based on the base 200. The slide mechanism 400 is a mechanism having a slide member 410 which is a horizontally movable member.

[0043] The slide mechanism 400 may also be a mechanism having a slide member 410 which is a member that is restricted from vertical movement but is capable of horizontal movement. The slide mechanism 400 may have a slide member 410 which is a horizontally movable member, and may be a mechanism that generates a horizontally acting resistance force on the slide member 410 that corresponds to the horizontal speed of the slide member 410. The slide mechanism 400 may have a slide member 410 which is a member that is constrained to move up and down but can move horizontally, and may be a mechanism that generates a horizontal resistance force acting on the slide member 410 that corresponds to the horizontal speed of the slide member 410. The slide member 410 may be immersed in a viscous pool 440 filled with viscous material 430. The sliding member 410 may be a member fixed to one end of the damper 450. For example, damper 450 may be a liquid damper or a gas damper.

[0044] The table support mechanism 300 consists of a vertical spring member 320 and a link mechanism 330. The table support mechanism 300 may consist of a vertical spring member 320, a link mechanism 330, and a locking prevention mechanism 360. The table support mechanism 300 may consist of a vertical spring member 320, a link mechanism 330, a horizontal spring member 340, and a locking prevention mechanism 360. The table support mechanism 300 may consist of a horizontal guide mechanism 310, a vertical spring member 320, a link mechanism 330, a horizontal spring member 340, and a locking prevention mechanism 360.

[0045] The horizontal guide mechanism 310 is a mechanism that fixes the connecting portion of the link mechanism 330 to the table 100 or base 200 so that it can move horizontally.

[0046] 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 spring constant selected during the design process. The vertical spring member 320 may also be a compression spring. For example, a compression spring is connected at its lower end to a base 200 and at its upper end to a table 100, thereby applying an upward compressive force to the table 100. The vertical spring member 320 may also be a tension spring. For example, a tension spring is connected at its lower end to the table 100 and at its upper end to the base 200, and acts as an upward tensile force on the table 100. Figures 1 to 12 schematically show how a pair of left and right compression springs are provided between the table 100 and the base 200.

[0047] The link mechanism 330 is a mechanism provided between the base 200 and the table 100. The link mechanism 330 is a mechanism formed by combining multiple links.

[0048] The horizontal spring member 340 is a member that applies a spring force to each of a pair of specific left and right points, which are specific locations on the link mechanism 330, along a specific horizontal axis in a direction that brings them closer to each other. The horizontal spring member 340 is provided as needed.

[0049] The anti-locking mechanism 360 is a mechanism that suppresses the tilting and horizontal movement of the table 100. The anti-locking mechanism 360 is a mechanism that prevents the table 100 from tilting. The anti-locking mechanism 360 is a mechanism that prevents the table 100 from moving horizontally. The anti-locking mechanism 360 is provided as needed. For example, if the link mechanism 330 has a locking prevention mechanism 360, it is not necessary to provide a separate locking prevention mechanism 360. For example, if the object support device has different anti-locking mechanisms 360, the link mechanism 330 does not need to have an anti-locking mechanism 360.

[0050] The structure of the link mechanism 330 is described in detail below. When one end of the main link 331 is the upper end, one structure is the table 100 and the other structure is the base 200. When one end of the main link 331 is the lower end, one structure is the base 200 and the other structure is the table 100. For the sake of explanation, we will refer to a specific horizontal axis extending in a particular horizontal direction as the specific horizontal axis, and describe the table 100 as one structure and the base 200 as the other structure.

[0051] The link mechanism 330 may consist of a pair of left and right main links 331. The main link 331 is a long member that is inclined in the longitudinal direction, and is a link in which one end of a pair of upper and lower ends is connected to one structure so as to be rotatable around the rotation center 331Cu which is the rotation center, and the other end is directed toward the other structure. The other end of at least one main link 331 is rotatably connected to the slide member 410 around the other rotation center 331Cd, which is the rotation center.

[0052] The linkage mechanism 330 may consist of a pair of left and right main links 331 and a pair of left and right support links 332. The support link 332 is a long member whose longitudinal direction is inclined in the opposite direction to the inclination direction of the main link 331. One end of a pair of upper and lower ends is rotatably connected to the main link 331 around the first support rotation center 332Cu, which is the rotation center, and the other end is rotatably connected to the other structure around the second support rotation center 332Cd, which is the rotation center.

[0053] On the one hand, the support rotation center 332Cu is located on the main link central axis connecting the one rotation center 331Cu and the other rotation center 331Cd, and the distance between the one rotation center 331Cu and the one support rotation center 332Cu, the distance between the one support rotation center 332Cu and the other rotation center 331Cd, and the distance between the one support rotation center 332Cu and the other support rotation center 332Cd may be approximately equal.

[0054] At least one main link 331 may have one rotation center 331Cu fixed to one structure so as not to move relative to it, and the sliding member 410 may be constrained to move up and down but be able to move horizontally. At least one main link 331 may have a rotation center 331Cu that is movable relative to one of the structures.

[0055] The linkage mechanism 330 may consist of a pair of left and right main links 331 and a pair of left and right second main links 333. The linkage mechanism 330 may consist of a pair of left and right main links 331, a pair of left and right support links 332, and a pair of left and right second main links 333. The second main link 333 is a long member that is inclined in the longitudinal direction, and is a link in which one of a pair of upper and lower ends is connected to one structure so as to be rotatable around the first second rotation center 333Cu which is the rotation center, and the other end is directed toward the other structure. At least one second main link 333 has its other end rotatably connected to the slide member 410 around the other second rotation center 333Cd, which is the rotation center. The other end of each pair of left and right second main links 333 may be rotatably connected to each pair of left and right sliding members 410 around the other second rotation center 333Cd, which is the rotation center.

[0056] The linkage mechanism 330 may consist of a pair of left and right main links 331, a pair of left and right second main links 333, and a pair of left and right interlocking links 335. The linkage mechanism 330 may consist of a pair of left and right main links 331, a pair of left and right support links 332, a pair of left and right second main links 333, and a pair of left and right interlocking links 335. The interlocking link 335 is a long member that makes the longitudinal direction horizontal, and one end of a pair of left and right ends is rotatably connected to the main link 331 around the first interlocking rotation center 335Cu, which is the rotation center, and the other end is rotatably connected to the second main link 333 around the second interlocking rotation center 335Cd, which is the rotation center.

[0057] The linkage mechanism 330 may consist of a pair of left and right main links 331, a pair of left and right support links 332, a pair of left and right second main links 333, a pair of left and right second support links 334, and an interlocking link 335. The linkage mechanism 330 may consist of a pair of left and right main links 331, a pair of left and right second main links 333, a pair of left and right second support links 334, and an interlocking link 335. The second support link 334 is a long member whose longitudinal direction is inclined in the opposite direction to the inclination direction of the second main link 333. One end of a pair of upper and lower ends is rotatably connected to the second main link 333 around the first second support rotation center 334Cu, which is the rotation center, and the other end is rotatably connected to the other structure around the second second support rotation center 334Cd, which is the rotation center.

[0058] On the one hand, the linked rotation center 335Cu may coincide with the one support rotation center 332Cu, and on the other hand, the linked rotation center 335Cd may coincide with the one second support rotation center 334Cu, which is the rotation center of one end of the second support link 334.

[0059] On the one hand, the second support rotation center 334Cu is located on the second main link central axis connecting the first second rotation center 333Cu and the other second rotation center 333Cd, and the distance between the first second rotation center 333Cu and the first second support rotation center 334Cu, the distance between the first second support rotation center 334Cu and the other second rotation center 333Cd, and the distance between the first second support rotation center 334Cu and the other second support rotation center 334Cd may be approximately equal.

[0060] The linkage mechanism 330 may consist of a pair of left and right main links 331, a pair of left and right upper guide links 336, a pair of left and right lower guide links 337, and a pair of left and right interlocking links 335. The linkage mechanism 330 may consist of a pair of left and right main links 331, a pair of left and right support links 332, a pair of left and right upper guide links 336, a pair of left and right lower guide links 337, and a pair of left and right interlocking links 335. The upper guide link 336 is a long member that tilts in the longitudinal direction, and one end of a pair of upper and lower ends is rotatably connected to one structure around the upper guide rotation center 336Cu, which is the rotation center, and the other end is rotatably connected to one end of a pair of upper and lower ends of the lower guide link 337 around the lower guide rotation center 337Cu, which is the rotation center. The lower guide link 337 is a long member whose longitudinal direction is inclined in the opposite direction to the inclination direction of the upper guide link 336, and is a link to which the other end of a pair of upper and lower ends is rotatably connected to the other structure around the other lower guide rotation center 337Cd, which is the rotation center. The interlocking link 335 is a long member that makes the longitudinal direction horizontal, and one end of a pair of left and right ends is rotatably connected to one link of the upper guide link 336 or the lower guide link 337 around one interlocking rotation center 335Cu, and the other end is rotatably connected to one link of the main link 331 or the support link 332 around the other interlocking rotation center 335Cd.

[0061] Specific examples of object support devices according to the first to twelfth embodiments of the present invention will be described below with reference to the figures. First, an object support device according to a first embodiment of the present invention will be described. Figure 1 is a conceptual diagram of an object support device according to a first embodiment of the present invention. One specific example of an object support device according to the first embodiment of the present invention consists of a table 100, a base 200, a table support mechanism 300, and a sliding mechanism 400. Table 100 is designed to hold objects. Base 200 is supported by the foundation. Table 100 is positioned above base 200. Since the upper end of the main link 331 is connected to the table 100 and the lower end is connected to the sliding member 410, the table 100 corresponds to one structure and the base 200 corresponds to the other structure. The sliding mechanism 400 is provided on the side of the base 200, which corresponds to the other structure. The table support mechanism 300 consists of a vertical spring member 320, a link mechanism 330, and a locking prevention mechanism 360. The vertical spring member 320 is composed of a compression spring that generates an upward spring force on the table 100 based on the base 200. The link mechanism 330 consists of a pair of left and right main links 331. The left and right pair of main links 331 are elongated members that are tilted in the longitudinal direction. One end of each pair of upper and lower ends is rotatably connected to the table 100, which is one structure, around a rotation center 331Cu, which is the rotation center, and the other end is directed toward the base 200, which is the other structure. The other end of each of the left and right main links 331 is rotatably connected to the slide member 410 around the other rotation center 331Cd, which is the rotation center. The anti-locking mechanism 360 is a mechanism that suppresses tilting and horizontal movement of the table 100. For example, the anti-locking mechanism 360 contacts the periphery of the table 100, suppressing the tilting and horizontal movement of the table 100. The slide mechanism 400 has a slide member 410 which is a horizontally movable member, and is a mechanism that generates a horizontally acting resistance force on the slide member 410 that corresponds to the horizontal speed of the slide member 410. The slide mechanism 400 may have a slide member 410 which is a member that is constrained to move up and down but can move horizontally, and may be a mechanism that generates a horizontal resistance force acting on the slide member 410 that corresponds to the horizontal speed of the slide member 410.

[0062] The slide mechanism 400 according to the first and second embodiments of the present invention will be described below with reference to the figures. Figure 13 is a conceptual diagram of a slide mechanism 400 according to the first embodiment of the present invention. The slide mechanism 400 according to the first embodiment of the present invention is composed of a slide member 410 and a slide guide member 420. The sliding member 410 is a plate-shaped member whose vertical movement is restricted and whose horizontally movable surface is oriented vertically. The other end of the main link 331 is rotatably connected to the slide member 410 around the other rotation center 331Cd. The slide guide member 420 consists of a pair of rail-shaped members 421, four wheel-shaped members 422, a viscous body 430, and a viscous body pool 440. The pair of rail-shaped members 421 extend horizontally in the left-right direction and are rail-shaped members that guide the wheel-shaped member 422 in the horizontal direction. The four wheel-shaped members 422 are wheel-shaped members that are fixed to each of the four corners of the sliding member 410 so as to be rotatable. The viscous substance 430 is a liquid that, when the slide member 410 moves horizontally in the left-right direction, exerts a resistance force on the slide member 410 corresponding to its speed of movement. The viscous body pool 440 is a pool-shaped component that holds the viscous body 430. As a result, when the table 100 moves vertically, the other end of the main link 331 moves horizontally, generating a resistance force on the slide member 410 corresponding to the horizontal speed of the slide member 410, and this resistance force generates a damping force that acts vertically on the table 100 via the main link 331.

[0063] Figure 14 is a conceptual diagram of a slide mechanism 400 according to a second embodiment of the present invention. The slide mechanism 400 according to the second embodiment of the present invention is composed of a slide member 410 and a slide guide member 420. The sliding member 410 is a plate-shaped member whose vertical movement is restricted and whose horizontally movable surface is oriented vertically. The other end of the main link 331 is rotatably connected to the slide member 410 around the other rotation center 331Cd. The slide guide member 420 consists of a pair of guide grooves 423, four saddle members 424, a viscous body 430, and a viscous body pool 440. The pair of guide grooves 423 extend horizontally in the left-right direction and have a groove-like structure into which the four spool members 424 are fitted, and are provided in the viscous pool 440. A pair of guide grooves 423 are filled with a viscous substance 430. The four spindle members 424 are spindle-shaped members that are fixed to the four corners of the slide member 410. The viscous substance 430 is a liquid that, when the slide member 410 moves horizontally in the left-right direction, exerts a resistance force on the slide member 410 corresponding to its speed of movement. The viscous body pool 440 is a pool-shaped component that holds the viscous body 430. As a result, when the table 100 moves vertically, the other end of the main link 331 moves horizontally, generating a horizontal resistance force on the slide member 410 that corresponds to the horizontal speed of the slide member 410, and this resistance force generates a damping force that acts vertically on the table 100 via the main link 331.

[0064] Next, a second embodiment of the present invention, an object support device, will be described. Figure 2 is a conceptual diagram of an object support device according to a second embodiment of the present invention. One specific example of an object support device according to the second embodiment of the present invention consists of a table 100, a base 200, a table support mechanism 300, and a sliding mechanism 400. The table 100, base 200, and sliding mechanism 400 are the same as those described above, so their explanation will be omitted. The table support mechanism 300 consists of a vertical spring member 320 and a link mechanism 330. The structure of the vertical spring member 320 is the same as described above, so the explanation will be omitted. The linkage mechanism 330 consists of a pair of left and right main links 331 and a pair of left and right support links 332. The structure of the left and right pair of main links 331 is the same as described above, so the explanation will be omitted. The left and right pair of support links 332 are elongated members whose longitudinal direction is inclined in the opposite direction to the inclination of the main link 331. One end of the pair of upper and lower ends is rotatably connected to the main link 331 around the one support rotation center 332Cu, which is the rotation center, and the other end is rotatably connected to the base 200, which corresponds to the other structure, around the other support rotation center 332Cd, which is the rotation center. One support rotation center 332Cu is located on the main link central axis connecting one rotation center 331Cu and the other rotation center 331Cd, and the distance between one rotation center 331Cu and one support rotation center 332Cu, the distance between one support rotation center 332Cu and the other rotation center 331Cd, and the distance between one support rotation center 332Cu and the other support rotation center 332Cd are approximately equal. As a result, when the table 100 moves in the vertical direction, the link mechanism 330 operates to suppress the tilting motion and the movement of the table 100 in the left-right direction, and a damping force acts on the table 100.

[0065] Next, an object support device according to a third embodiment of the present invention will be described. Figure 3 is a conceptual diagram of an object support device according to a third embodiment of the present invention. One specific example of an object support device according to the third embodiment of the present invention consists of a table 100, a base 200, a table support mechanism 300, and a sliding mechanism 400. The table 100, base 200, and sliding mechanism 400 are the same as those described above, so their explanation will be omitted. The table support mechanism 300 consists of a vertical spring member 320 and a link mechanism 330. The structure of the vertical spring member 320 is the same as described above, so the explanation will be omitted. The link mechanism 330 consists of a pair of left and right main links 331 and a pair of left and right second main links 333. The structure of the left and right pair of main links 331 is the same as described above, so the explanation will be omitted. The pair of left and right second main links 333 are elongated members that are tilted in the longitudinal direction. One end of each pair of upper and lower ends is rotatably connected to the table 100, which corresponds to one structure, around the first second rotation center 333Cu, which is the rotation center, and the other end faces the base 200, which corresponds to the other structure. The other end of each of the pair of left and right second main links 333 is rotatably connected to the slide member 410 around the other second rotation center 333Cd, which is the rotation center. In the main link 331, the distance between one rotation center 331Cu and the other rotation center 331Cd is equal to the distance between one second rotation center 333Cu and the other second rotation center 333Cd. As a result, when the table 100 moves in the vertical direction, the link mechanism 330 operates to suppress the tilting motion and the movement of the table 100 in the left-right direction, and a damping force acts on the table 100.

[0066] Next, a fourth embodiment of the present invention, an object support device, will be described. Figure 4 is a conceptual diagram of an object support device according to a fourth embodiment of the present invention. One specific example of an object support device according to the fourth embodiment of the present invention consists of a table 100, a base 200, a table support mechanism 300, and a sliding mechanism 400. The table 100, base 200, and sliding mechanism 400 are the same as those described above, so their explanation will be omitted. The table support mechanism 300 consists of a vertical spring member 320 and a link mechanism 330. The structure of the vertical spring member 320 is the same as described above, so the explanation will be omitted. The linkage mechanism 330 consists of a pair of left and right main links 331, a pair of left and right support links 332, and a pair of left and right second main links 333. The structure of the left and right pair of main links 331, the left and right pair of support links 332, and the left and right pair of second main links 333 is the same as described above, so the explanation will be omitted. As a result, when the table 100 moves vertically, the link mechanism 330 acts to suppress the tilting motion and the movement of the table 100 from side to side, and a damping force is applied to the table 100.

[0067] Next, a fifth embodiment of the present invention, an object support device, will be described. Figure 5 is a conceptual diagram of an object support device according to the fifth embodiment of the present invention. One specific example of an object support device according to the fifth embodiment of the present invention consists of a table 100, a base 200, a table support mechanism 300, and a sliding mechanism 400. The table 100, base 200, and sliding mechanism 400 are the same as those described above, so their explanation will be omitted. The table support mechanism 300 consists of a vertical spring member 320 and a link mechanism 330. The structure of the vertical spring member 320 is the same as described above, so the explanation will be omitted. The linkage mechanism 330 consists of a pair of left and right main links 331, a pair of left and right second main links 333, and a pair of left and right second support links 334. The structure of the pair of left and right main links 331 and the pair of left and right second main links 333 is the same as described above, so the explanation will be omitted. The pair of left and right second support links 334 are elongated members whose longitudinal direction is inclined in the opposite direction to the inclination direction of the second main link 333. One end of the pair of upper and lower ends is rotatably connected to the second main link 333 around the first second support rotation center 334Cu, which is the rotation center, and the other end is rotatably connected to the base 200, which corresponds to the other structure, around the second second support rotation center 334Cd, which is the rotation center. The first second support rotation center 334Cu is located on the second main link central axis connecting the first second rotation center 333Cu and the other second rotation center 333Cd, and the distance between the first second rotation center 333Cu and the first second support rotation center 334Cu, the distance between the first second support rotation center 334Cu and the other second rotation center 333Cd, and the distance between the first second support rotation center 334Cu and the other second support rotation center 334Cd are approximately equal. As a result, when the table 100 moves in the vertical direction, the link mechanism 330 acts to suppress the tilting motion and the movement of the table 100 in the left-right direction, and a damping force is applied to the table 100.

[0068] Next, an object support device according to a sixth embodiment of the present invention will be described. Figure 6 is a conceptual diagram of an object support device according to the sixth embodiment of the present invention. One specific example of an object support device according to the sixth embodiment of the present invention consists of a table 100, a base 200, a table support mechanism 300, and a sliding mechanism 400. The table 100, base 200, and sliding mechanism 400 are the same as those described above, so their explanation will be omitted. The table support mechanism 300 consists of a vertical spring member 320 and a link mechanism 330. The structure of the vertical spring member 320 is the same as described above, so the explanation will be omitted. The linkage mechanism 330 consists of a pair of left and right main links 331, a pair of left and right support links 332, a pair of left and right second main links 333, and a pair of left and right second support links 334. The structure of the left and right pair of main links 331, the left and right pair of support links 332, the left and right pair of second main links 333, and the left and right pair of second support links 334 is the same as described above, so the explanation will be omitted. As a result, when the table 100 moves vertically, the link mechanism 330 acts to suppress the tilting motion and the movement of the table 100 from side to side, and a damping force is applied to the table 100.

[0069] Next, a seventh embodiment of the present invention, an object support device, will be described. Figure 7 is a conceptual diagram of an object support device according to the seventh embodiment of the present invention. One specific example of an object support device according to the seventh embodiment of the present invention consists of a table 100, a base 200, a table support mechanism 300, and a sliding mechanism 400. The table 100, base 200, and sliding mechanism 400 are the same as those described above, so their explanation will be omitted. The table support mechanism 300 consists of a vertical spring member 320 and a link mechanism 330. The structure of the vertical spring member 320 is the same as described above, so the explanation will be omitted. The linkage mechanism 330 consists of a pair of left and right main links 331, a pair of left and right second main links 333, and a pair of left and right interlocking links 335. The structure of the pair of left and right main links 331 and the pair of left and right second main links 333 is the same as described above, so the explanation will be omitted. The interlocking link 335 is a long member that makes the longitudinal direction horizontal, and is a link in which one end of a pair of left and right ends is rotatably connected to the main link 331 around the first interlocking rotation center 335Cu, which is the rotation center, and the other end is rotatably connected to the second main link 333 around the second interlocking rotation center 335Cd, which is the rotation center. As a result, when the table 100 moves in the vertical direction, the link mechanism 330 acts to suppress the tilting motion and the movement of the table 100 in the left-right direction, and a damping force is applied to the table 100.

[0070] Next, an object support device according to the eighth embodiment of the present invention will be described. Figure 8 is a conceptual diagram of an object support device according to the eighth embodiment of the present invention. One specific example of an object support device according to the eighth embodiment of the present invention consists of a table 100, a base 200, a table support mechanism 300, and a sliding mechanism 400. The table 100, base 200, and sliding mechanism 400 are the same as those described above, so their explanation will be omitted. The table support mechanism 300 consists of a vertical spring member 320 and a link mechanism 330. The structure of the vertical spring member 320 is the same as described above, so the explanation will be omitted. The linkage mechanism 330 consists of a pair of left and right main links 331, a pair of left and right support links 332, a pair of left and right second main links 333, a pair of left and right second support links 334, and a pair of left and right interlocking links 335. The structure of the left and right pair of main links 331, the left and right pair of support links 332, the left and right pair of second main links 333, the left and right pair of second support links 334, and the left and right pair of interlocking links 335 is the same as described above, so the explanation will be omitted. On the one hand, the linked rotation center 335Cu coincides with the one support rotation center 332Cu, and on the other hand, the linked rotation center 335Cd coincides with the one second support rotation center 334Cu. As a result, when the table 100 moves in the vertical direction, the link mechanism 330 acts to suppress the tilting motion and the movement of the table 100 in the left-right direction, and a damping force is applied to the table 100.

[0071] Next, an object support device according to the ninth embodiment of the present invention will be described. Figure 9 is a conceptual diagram of an object support device according to the ninth embodiment of the present invention. One specific example of an object support device according to the ninth embodiment of the present invention consists of a table 100, a base 200, a table support mechanism 300, and a sliding mechanism 400. The table 100, base 200, and sliding mechanism 400 are the same as those described above, so their explanation will be omitted. The table support mechanism 300 consists of a vertical spring member 320 and a link mechanism 330. The structure of the vertical spring member 320 is the same as described above, so the explanation will be omitted. The linkage mechanism 330 consists of a pair of left and right main links 331, a pair of left and right support links 332, a pair of left and right upper guide links 336, a pair of left and right lower guide links 337, and a pair of left and right interlocking links 335. The structure of the left and right pair of main links 331, the left and right pair of support links 332, and the left and right pair of interlocking links 335 is the same as described above, so the explanation will be omitted. The upper guide link 336 is a long member that tilts in the longitudinal direction, and one end of a pair of upper and lower ends is rotatably connected to the table 100 corresponding to one structure around the upper guide rotation center 336Cu, which is the rotation center, and the other end is rotatably connected to one end of a pair of upper and lower ends of the lower guide link 337 around the lower guide rotation center 337Cu, which is the rotation center. The lower guide link 337 is a long member whose longitudinal direction is inclined in the opposite direction to the inclination direction of the upper guide link 336. One end of a pair of upper and lower ends is rotatably connected to the other end of the upper guide link 336 around the one lower guide rotation center 337Cu, which is the rotation center, and the other end of the pair of upper and lower ends is rotatably connected to the base 200, which corresponds to the other structure, around the other lower guide rotation center 337Cd, which is the rotation center. The interlocking link 335 is a long member that aligns horizontally in its longitudinal direction, with one end rotatably connected to one of the main links 331 or support links 332 around one interlocking rotation center 335Cu, and the other end of a pair of left and right ends rotatably connected to one of the upper guide links 336 or lower guide links 337 around the other interlocking rotation center 335Cd. As a result, when the table 100 moves in the vertical direction, the link mechanism 330 acts to suppress the tilting motion and the movement of the table 100 in the left-right direction, and a damping force is applied to the table 100.

[0072] Next, an object support device according to ten embodiments of the present invention will be described. Figure 10 is a conceptual diagram of an object support device according to ten embodiments of the present invention. One specific example of an object support device according to the tenth embodiment of the present invention consists of a table 100, a base 200, a table support mechanism 300, and a sliding mechanism 400. Table 100 and base 200 are the same as those mentioned above, so their explanation will be omitted. The table support mechanism 300 consists of a vertical spring member 320, a link mechanism 330, and a locking prevention mechanism 360. The structure of the vertical spring member 320 and the link mechanism 330 is the same as described above, so the explanation will be omitted. Figure 10 illustrates a linkage mechanism 330 consisting of a pair of left and right main links 331 and a pair of left and right support links 332. The anti-locking mechanism 360 is a mechanism that uses the base 200 as a foundation to suppress the tilting motion and horizontal movement of the table 100. The anti-locking mechanism 360 consists of a pair of guide rods, one on the left and one on the right. The guide rod allows the table 100 to move freely in the vertical direction, using the base 200 as a foundation, while restricting its horizontal movement. The sliding mechanism 400 consists of a pair of left and right dampers 450. The damper 450 is either an oil damper or an air damper. The damper 450 has one end of its pair of left and right ends fixed to the other end of the main link 331, and the other end fixed to the base 200. The damper 450 may have one end of its pair of left and right ends rotatably connected to the other end of the main link 331, and the other end rotatably connected to the base 200.

[0073] Next, an object support device according to an eleventh embodiment of the present invention will be described. Figure 11 is a conceptual diagram of an object support device according to an eleventh embodiment of the present invention. One specific example of an object support device according to the eleventh embodiment of the present invention consists of a table 100, a base 200, a table support mechanism 300, and a sliding mechanism 400. Table 100 and base 200 are the same as those mentioned above, so their explanation will be omitted. The table support mechanism 300 consists of a horizontal guide mechanism 310, a vertical spring member 320, a link mechanism 330, and a locking prevention mechanism 360. The structure of the vertical spring member 320, the link mechanism 330, and the locking prevention mechanism 360 is the same as described above, so the explanation will be omitted. Figure 11 illustrates a linkage mechanism 330 consisting of a pair of left and right main links 331 and a pair of left and right support links 332. The horizontal guide mechanism 310 is a mechanism that connects one end of the main link 331 to the table 100 so that it can move relative to the table in the horizontal direction. For example, the horizontal guide mechanism 310 consists of guide wheels 311 and guide rails 312. The guide wheel 311 is guided along the guide rail 312 so as to be able to move horizontally. A guide wheel 311 is provided at one end of the main link 331. The object support device according to this embodiment requires a separate mechanism (not shown) to suppress the horizontal movement of the table 100.

[0074] Next, an object support device according to a twelfth embodiment of the present invention will be described. Figure 12 is a conceptual diagram of an object support device according to twelve embodiments of the present invention. One specific example of an object support device according to the twelfth embodiment of the present invention consists of a table 100, a base 200, a table support mechanism 300, and a sliding mechanism 400. Table 100 and base 200 are the same as those mentioned above, so their explanation will be omitted. The table support mechanism 300 is the same as described above, so its explanation will be omitted. The structure of the vertical spring member 320 and the link mechanism 330 is the same as described above, so the explanation will be omitted. Figure 12 illustrates a linkage mechanism 330 consisting of a pair of left and right main links 331 and a pair of left and right support links 332. The horizontal spring member 340 acts a spring force on each of the pair of specific points on the left and right main links 331, which are specific points on each of the left and right main links, along a specific horizontal axis in a direction that brings them closer to each other. Here, the specific horizontal axis is a horizontal axis that extends in the horizontal direction. In Figure 12, the horizontal spring member 340 is composed of a spring member that applies a tensile force. In this way, the spring characteristics of the vertical spring member 320 and the horizontal spring member 340 can be selected, and the spring characteristics acting on the table 100 can be set to the desired specifications.

[0075] The structure of the other slide mechanisms 400 is described below, based on the diagram. Figure 15 is a conceptual diagram of a slide mechanism 400 according to a third embodiment of the present invention. The slide mechanism 400 according to the third embodiment of the present invention, in an embodiment that does not use a slide guide member 420, is composed of a combination of a slide member 410, a main link 331, a second main link 333, a locking prevention mechanism 360, and an interlocking link 335. The sliding member 410 is a plate-shaped member that can move horizontally. The other end of the main link 331 is rotatably connected to the slide member 410 around the other rotation center 331Cd, and the other end of the second main link 333 is rotatably connected to the slide member 410 around the other second rotation center 333Cd. The other ends of the main link 331 and the second main link 333 move horizontally while maintaining their horizontal position through a combination of the anti-locking mechanism 360 and the interlocking link 335. The viscous substance 430 is a liquid that, when the slide member 410 moves horizontally in the left-right direction, exerts a resistance force on the slide member 410 corresponding to its speed of movement. The viscous body pool 440 is a pool-shaped component that holds the viscous body 430. As a result, when the table 100 moves vertically, the main link 331 and the other end of the second main link 333 move horizontally while maintaining their horizontal position, generating a horizontal resistance force on the slide member 410 that corresponds to the horizontal speed of the slide member 410. This resistance force generates a damping force that acts vertically on the table 100 via the main link 331 and the second main link 333.

[0076] Figure 16 is a conceptual diagram of a slide mechanism 400 according to a fourth embodiment of the present invention. The slide mechanism 400 according to the fourth embodiment of the present invention differs from the one described above in that it does not have a pool for storing viscous material. The slide mechanism 400 according to the fourth embodiment of the present invention is composed of a slide member 410 and a slide guide member 420. The sliding member 410 is a plate-shaped member that is restricted from vertical movement but is capable of horizontal movement. The other end of the main link 331 is rotatably connected to the slide member 410 around the other rotation center 331Cd. The slide guide member 420 is composed of a pair of rail-shaped members 421 and four wheel-shaped members 422. The pair of rail-shaped members 421 extend horizontally in the left-right direction and are rail-shaped members that guide the wheel-shaped member 422 in the horizontal direction. The four wheel-shaped members 422 are wheel-shaped members that are fixed to each of the four corners of the sliding member 410 so as to be rotatable. Four wheel-shaped members 422 are guided to move freely in the horizontal direction, while their vertical movement is constrained by a pair of rail-shaped members 421. As a result, when the table 100 moves vertically, the other end of the main link 331 moves horizontally.

[0077] The object support device according to the above embodiment provides the following advantages. When one of the base 200 and the table 100 is referred to as the "one structure" and the other as the "other structure," the base 200 acts as a foundation to generate an upward spring force on the table 100. One end of a pair of left and right main links 331, which are inclined in the longitudinal direction, is rotatably connected to the one structure, and the other end is rotatably connected to a slide member 410 that moves horizontally toward the other structure and is subjected to a resistance force corresponding to the horizontal speed. As a result, a damping force is generated in response to the vertical movement of the table 100, corresponding to the resistance force acting on the slide member 410. Since one end of the support link 332, which is tilted in the opposite direction to the main link 331, is rotatably connected to the main link 331 and the other end is rotatably connected to the other structure, when the table 100 moves up and down, the tilt of the support link 332 changes in accordance with the change in the tilt of the main link 331, and the link structure changes stably. Since the distance between one rotation center 331Cu and one support rotation center 332Cu, the distance between one support rotation center 332Cu and the other rotation center 331Cd, and the distance between one support rotation center 332Cu and the other support rotation center 332Cd are made approximately equal, the table 100 moves up and down stably. The distance between the one rotation center 331Cu and the one support rotation center 332Cu, the distance between the one support rotation center 332Cu and the other rotation center 331Cd, and the distance between the one support rotation center 332Cu and the other support rotation center 332Cd are approximately equal. Since the one rotation center 331Cu is fixed to the one structure so that it cannot move relative to it, and the sliding member 410 is constrained to move up and down, the one rotation center 331Cu moves along a straight line extending vertically when the table 100 moves up and down. One end of each of the pair of left and right second main links 333, which are inclined in the longitudinal direction, is rotatably connected to one structure, and the other end facing the other structure is rotatably connected to a slide member 410 that moves horizontally and is subjected to a resistance force corresponding to the horizontal speed. As a result, the resistance force generated in the slide member 410 as the table 100 moves up and down is stably transmitted to the table 100. Since one end of a pair of left and right interlocking links 335, oriented horizontally in their longitudinal direction, is rotatably connected to the main link 331, and the other end is rotatably connected to the second main link 333, the table 100 moves up and down stably. One end of the second main link 333, which is inclined in the longitudinal direction, is rotatably connected to one structure, the other end is rotatably connected to the other structure, and the other end is rotatably connected to the slide member 410 facing the other structure. The second support link 334, which is inclined in the longitudinal direction in the opposite direction, is rotatably connected to the second main link 333 at one end and to the other structure at the other end. The interlocking link 335, which is horizontal in the longitudinal direction, is rotatably connected to the main link 331 at one end and to the second support link 334 at the other end. The link mechanism 330 changes stably as the table 100 moves up and down. On the one hand, the linked rotation center 335Cu coincides with the second support rotation center 334Cu, and on the other hand, the linked rotation center 335Cd coincides with the support rotation center 332Cu, thus simplifying the link structure. The upper guide link 336, which tilts in the longitudinal direction, is rotatably connected at one end to one structure and at the other end to one end of the lower guide link 337. The lower guide link 337, which tilts in the longitudinal direction in the opposite direction, is rotatably connected at the other end to the other structure. The interlocking link 335, which makes the longitudinal direction horizontal, is rotatably connected at one end to the lower guide link 337 and at the other end to the support link 332. As a result, the link mechanism 330 changes stably in accordance with the vertical movement of the table 100. By restricting the horizontal relative movement between the table 100 and the base 200, while allowing free vertical movement, the table 100 moves up and down stably. The slide mechanism 400 includes a slide member 410 and a slide guide member 420 that restricts the vertical movement of the slide member 410 while allowing it to move horizontally. As a result, the slide member 410 is restricted from vertical movement and can move horizontally. The slide guide member 420 has a rail-shaped member 421 and a wheel-shaped member 422 that is restricted from vertical movement by the rail-shaped member 421 and is capable of horizontal movement, and the wheel-shaped member 422 supports the slide member 410, so that the slide member 410 is restricted from vertical movement and can move horizontally stably.

[0078] When one of the base 200 and the table 100 is referred to as the "one structure" and the other as the "other structure," the base 200 acts as a foundation to generate an upward spring force on the table 100. One end of a pair of left and right main links 331, which are inclined in the longitudinal direction, is rotatably connected to the one structure, while the other end is rotatably connected to a sliding member 410 that moves horizontally but is restricted from moving up and down, thus allowing the table 100 to move up and down stably. Since one end of the support link 332, which is tilted in the opposite direction to the main link 331, is rotatably connected to the main link 331 and the other end is rotatably connected to the other structure, when the table 100 moves up and down, the tilt of the support link 332 changes in accordance with the change in the tilt of the main link 331, and the link structure changes stably. Since the distance between one rotation center 331Cu and one support rotation center 332Cu, the distance between one support rotation center 332Cu and the other rotation center 331Cd, and the distance between one support rotation center 332Cu and the other support rotation center 332Cd are made approximately equal, the table 100 moves up and down stably. The distance between the one rotation center 331Cu and the one support rotation center 332Cu, the distance between the one support rotation center 332Cu and the other rotation center 331Cd, and the distance between the one support rotation center 332Cu and the other support rotation center 332Cd are approximately equal. Since the one rotation center 331Cu is fixed to the one structure so that it cannot move relative to it, and the sliding member 410 is constrained to move up and down, the one rotation center 331Cu moves along a straight line extending vertically when the table 100 moves up and down. One end of each of the pair of left and right second main links 333, which are inclined in the longitudinal direction, is rotatably connected to one structure, and the other end facing the other structure is rotatably connected to a sliding member 410 that is restricted from vertical movement but moves horizontally, so that the table 100 moves up and down stably. Since one end of a pair of left and right interlocking links 335, oriented horizontally in their longitudinal direction, is rotatably connected to the main link 331, and the other end is rotatably connected to the second main link 333, the table 100 moves up and down stably. One end of the second main link 333, which is inclined in the longitudinal direction, is rotatably connected to one structure, the other end is rotatably connected to the other structure, and the other end is rotatably connected to the slide member 410 facing the other structure. The second support link 334, which is inclined in the longitudinal direction in the opposite direction, is rotatably connected to the second main link 333 at one end and to the other structure at the other end. The interlocking link 335, which is horizontal in the longitudinal direction, is rotatably connected to the main link 331 at one end and to the second support link 334 at the other end. The link mechanism 330 changes stably as the table 100 moves up and down. On the one hand, the linked rotation center 335Cu coincides with the second support rotation center 334Cu, and on the other hand, the linked rotation center 335Cd coincides with the support rotation center 332Cu, thus simplifying the link structure. The upper guide link 336, which tilts in the longitudinal direction, is rotatably connected at one end to one structure and at the other end to one end of the lower guide link 337. The lower guide link 337, which tilts in the longitudinal direction in the opposite direction, is rotatably connected at the other end to the other structure. The interlocking link 335, which makes the longitudinal direction horizontal, is rotatably connected at one end to the lower guide link 337 and at the other end to the support link 332. As a result, the link mechanism 330 changes stably in accordance with the vertical movement of the table 100. By restricting the horizontal relative movement between the table 100 and the base 200, while allowing free vertical movement, the table 100 moves up and down stably. The slide mechanism 400 includes a slide member 410 and a slide guide member 420 that restricts the vertical movement of the slide member 410 while allowing it to move horizontally. As a result, the slide member 410 is restricted from vertical movement and can move horizontally. The slide guide member 420 has a rail-shaped member 421 and a wheel-shaped member 422 that is restricted from vertical movement by the rail-shaped member 421 and is capable of horizontal movement, and the wheel-shaped member 422 supports the slide member 410, so that the slide member 410 is restricted from vertical movement and can move horizontally stably. Therefore, it is possible to provide an object support device that can support an object while maintaining seismic isolation functionality and simplifying its structure.

[0079] The present invention is not limited to the embodiments described above, and various modifications are possible without departing from the spirit of the invention. The explanation used an example where one structure corresponds to the table 100 and the other structure corresponds to the base 200, but the explanation is not limited to this. For example, if the top and bottom of the link mechanism 330 are reversed, one structure corresponds to the base 200 and the other structure corresponds to the table 100. [Explanation of Symbols]

[0080] 100 tables 200 bases 300 Table support mechanism 310 Horizontal guide mechanism 311 Guide Wheel 312 Guide Rail 320 Vertical spring member 330 Link Mechanism 331 Main Link 331Cu Unidirectional rotation center 331Cd Other rotation center 332 Support Links 332Cu One-sided support rotation center 332Cd Other support rotation center 333 Second primary link 333Cu, on the other hand, the second rotation center. 333Cd The other second rotation center 334 Second Support Link 334Cu, on the other hand, the second support rotation center. 334Cd On the other hand, the second support rotation center 335 Interlocking Links 335Cu One-way linked rotation center 335Cd The other interlocking rotation center 336 Upper Guide Link 336Cu One-sided upper guide rotation center 337 Guide Links 337Cu One-sided lower guide rotation center 337Cd Other lower guide rotation center 340 Horizontal spring member 360 Anti-lock mechanism 400 Slide mechanism 410 Slide Member 420 Slide guide member 421 Rail-shaped member 422 Wheel-shaped member 423 Guide groove 424 Component parts 430 Viscous body 440 Viscous Pool 450 damper [Prior art documents] [Patent Documents]

[0081] [Patent Document 1] Japanese Patent Publication No. 63-23437 [Patent Document 2] Japanese Patent Publication No. 63-21070 [Patent Document 3] Japanese Patent Application Publication No. 9-195571 [Patent Document 3] Japanese Patent Publication No. 10-82208

Claims

1. 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 based on the base, A sliding mechanism having a sliding member which is a horizontally movable member, and generating a horizontal resistance force acting on the sliding member that corresponds to the horizontal speed of the sliding member, Equipped with, The table support mechanism has a link mechanism that uses the base as a foundation and includes a vertical spring member that generates an upward spring force on the table, and a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a rotation center, and the other end facing the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The aforementioned link mechanism further comprises a pair of left and right second main links, The second main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the second rotation center which is the rotation center, and the other end is directed toward the other structure. At least one of the other ends of the second main link is rotatably connected to the slide member around the other second rotation center, which is the rotation center. An object support device characterized by the following features.

2. 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 based on the base, A sliding mechanism having a sliding member which is a horizontally movable member, and generating a horizontal resistance force acting on the sliding member that corresponds to the horizontal speed of the sliding member, Equipped with, The table support mechanism has a link mechanism that uses the base as a foundation and includes a vertical spring member that generates an upward spring force on the table, and a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a rotation center, and the other end facing the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The link mechanism comprises a pair of left and right main links and a pair of left and right support links. The support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination direction of the main link, and one end of a pair of upper and lower ends is rotatably connected to the main link around the rotation center of the first support, which is the rotation center, and the other end is rotatably connected to the other structure around the rotation center of the second support, which is the rotation center. The aforementioned link mechanism further comprises a pair of left and right second main links, The second main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the second rotation center which is the rotation center, and the other end is directed toward the other structure. At least one of the other ends of the second main link is rotatably connected to the slide member around the other second rotation center, which is the rotation center. An object support device characterized by the following features.

3. 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 based on the base, A sliding mechanism having a sliding member which is a horizontally movable member, and generating a horizontal resistance force acting on the sliding member that corresponds to the horizontal speed of the sliding member, Equipped with, The table support mechanism has a link mechanism that uses the base as a foundation and includes a vertical spring member that generates an upward spring force on the table, and a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a rotation center, and the other end facing the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The aforementioned link mechanism further comprises a pair of left and right second main links and a pair of left and right interlocking links. The second main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the second rotation center which is the rotation center, and the other end is directed toward the other structure. At least one of the other ends of the second main link is rotatably connected to the slide member around the other second rotation center which is the rotation center, The aforementioned interlocking link is a long member whose longitudinal direction is horizontal, and one end of a pair of left and right ends is rotatably connected to the main link around the first interlocking rotation center, which is the center of rotation, and the other end is rotatably connected to the second main link around the second interlocking rotation center, which is the center of rotation. An object support device characterized by the following features.

4. 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 based on the base, A sliding mechanism having a sliding member which is a horizontally movable member, and generating a horizontal resistance force acting on the sliding member that corresponds to the horizontal speed of the sliding member, Equipped with, The table support mechanism has a link mechanism that uses the base as a foundation and includes a vertical spring member that generates an upward spring force on the table, and a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a rotation center, and the other end facing the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The link mechanism comprises a pair of left and right main links and a pair of left and right support links. The support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination direction of the main link, and one end of a pair of upper and lower ends is rotatably connected to the main link around the rotation center of the first support, which is the rotation center, and the other end is rotatably connected to the other structure around the rotation center of the second support, which is the rotation center. The aforementioned link mechanism further comprises a pair of left and right second main links and a pair of left and right interlocking links. The second main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the second rotation center which is the rotation center, and the other end is directed toward the other structure. At least one of the other ends of the second main link is rotatably connected to the slide member around the other second rotation center which is the rotation center, The aforementioned interlocking link is a long member whose longitudinal direction is horizontal, and one end of a pair of left and right ends is rotatably connected to the main link around the first interlocking rotation center, which is the center of rotation, and the other end is rotatably connected to the second main link around the second interlocking rotation center, which is the center of rotation. An object support device characterized by the following features.

5. 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 based on the base, A sliding mechanism having a sliding member which is a horizontally movable member, and generating a horizontal resistance force acting on the sliding member that corresponds to the horizontal speed of the sliding member, Equipped with, The table support mechanism has a link mechanism that uses the base as a foundation and includes a vertical spring member that generates an upward spring force on the table, and a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a rotation center, and the other end facing the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The aforementioned link mechanism further comprises a pair of left and right second main links, a pair of left and right second support links, and a pair of left and right interlocking links. The second main link has one end of its pair of upper and lower ends connected to one structure so as to be rotatable around the second center of rotation, which is the center of rotation, and the other end is directed toward the other structure. The other end of at least one of the second main links is rotatably connected to the slide member around another second rotation center which is the rotation center, The second support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination direction of the second main link, and one end of a pair of upper and lower ends is rotatably connected to the second main link around the first second support rotation center, which is the rotation center, and the other end is rotatably connected to the other structure around the second second support rotation center, which is the rotation center. The aforementioned interlocking link is a long member whose longitudinal direction is horizontal, and one end of a pair of left and right ends is rotatably connected to the main link around the first interlocking rotation center, which is the center of rotation, and the other end is rotatably connected to the second main link around the second interlocking rotation center, which is the center of rotation. An object support device characterized by the following features.

6. 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 based on the base, A sliding mechanism having a sliding member which is a horizontally movable member, and generating a horizontal resistance force acting on the sliding member that corresponds to the horizontal speed of the sliding member, Equipped with, The table support mechanism has a link mechanism that uses the base as a foundation and includes a vertical spring member that generates an upward spring force on the table, and a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a rotation center, and the other end facing the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The link mechanism comprises a pair of left and right main links and a pair of left and right support links. The support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination direction of the main link, and one end of a pair of upper and lower ends is rotatably connected to the main link around the rotation center of the first support, which is the rotation center, and the other end is rotatably connected to the other structure around the rotation center of the second support, which is the rotation center. The aforementioned link mechanism further comprises a pair of left and right second main links, a pair of left and right second support links, and a pair of left and right interlocking links. The second main link has one end of its pair of upper and lower ends connected to one structure so as to be rotatable around the second center of rotation, which is the center of rotation, and the other end is directed toward the other structure. The other end of at least one of the second main links is rotatably connected to the slide member around another second rotation center which is the rotation center, The second support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination direction of the second main link, and one end of a pair of upper and lower ends is rotatably connected to the second main link around the first second support rotation center, which is the rotation center, and the other end is rotatably connected to the other structure around the second second support rotation center, which is the rotation center. The aforementioned interlocking link is a long member whose longitudinal direction is horizontal, and one end of a pair of left and right ends is rotatably connected to the main link around the first interlocking rotation center, which is the center of rotation, and the other end is rotatably connected to the second main link around the second interlocking rotation center, which is the center of rotation. An object support device characterized by the following features.

7. The aforementioned one linked rotation center coincides with the aforementioned one support rotation center, and the aforementioned other linked rotation center coincides with the aforementioned one second support rotation center. The object support device according to feature 6.

8. 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 based on the base, A sliding mechanism having a sliding member which is a horizontally movable member, and generating a horizontal resistance force acting on the sliding member that corresponds to the horizontal speed of the sliding member, Equipped with, The table support mechanism has a link mechanism that uses the base as a foundation and includes a vertical spring member that generates an upward spring force on the table, and a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a rotation center, and the other end facing the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The link mechanism comprises a pair of left and right main links and a pair of left and right support links. The support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination direction of the main link, and one end of a pair of upper and lower ends is rotatably connected to the main link around the rotation center of the first support, which is the rotation center, and the other end is rotatably connected to the other structure around the rotation center of the second support, which is the rotation center. The aforementioned link mechanism further comprises a pair of left and right upper guide links, a pair of left and right lower guide links, and a pair of left and right interlocking links. The upper guide link is a long member that tilts in the longitudinal direction, and one end of a pair of upper and lower ends is rotatably connected to one structure around the rotation center of the upper guide, which is the rotation center, and the other end is rotatably connected to one end of a pair of upper and lower ends of the lower guide link around the rotation center of the lower guide, which is the rotation center. The lower guide link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination of the upper guide link, and is a link to which the other end of a pair of upper and lower ends is rotatably connected to the other structure around the other lower guide rotation center, which is the rotation center. The aforementioned interlocking link is a long member that aligns horizontally in its longitudinal direction, with one end rotatably connected to one of the main links or the support links around a one-way interlocking rotation center, which is the center of rotation, and the other end of a pair of left and right ends rotatably connected to one of the upper guide links or the lower guide links around a other-way interlocking rotation center, which is the center of rotation. An object support device characterized by the following features.

9. 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 based on the base, A sliding mechanism having a sliding member which is a horizontally movable member, and generating a horizontal resistance force acting on the sliding member that corresponds to the horizontal speed of the sliding member, Equipped with, The table support mechanism has a link mechanism that uses the base as a foundation and includes a vertical spring member that generates an upward spring force on the table, and a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a rotation center, and the other end facing the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The link mechanism comprises a pair of left and right main links and a pair of left and right support links. The support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination direction of the main link, and one end of a pair of upper and lower ends is rotatably connected to the main link around the rotation center of the first support, which is the rotation center, and the other end is rotatably connected to the other structure around the rotation center of the second support, which is the rotation center. The aforementioned one support rotation center is located on the main link central axis connecting the aforementioned one rotation center and the aforementioned other rotation center, and the distance between the aforementioned one rotation center and the aforementioned one support rotation center, the distance between the aforementioned one support rotation center and the aforementioned other rotation center, and the distance between the aforementioned one support rotation center and the aforementioned other support rotation center are approximately equal. The one rotation center of at least one main link is fixed to the one structure so as not to move relative to it. The sliding member is constrained to move up and down but is capable of moving horizontally. The table support mechanism comprises the vertical spring member, the link mechanism, and the locking prevention mechanism. The locking prevention mechanism supports the table on the base and restrains the relative horizontal movement between the table and the base, while allowing it to move freely in the vertical direction. An object support device characterized by the following features.

10. 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 based on the base, A sliding mechanism having a sliding member which is a horizontally movable member, and generating a horizontal resistance force acting on the sliding member that corresponds to the horizontal speed of the sliding member, Equipped with, The table support mechanism has a link mechanism that uses the base as a foundation and includes a vertical spring member that generates an upward spring force on the table, and a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, with one end of a pair of upper and lower ends rotatably connected to one structure around a rotation center, and the other end facing the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The link mechanism comprises a pair of left and right main links and a pair of left and right support links. The support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination direction of the main link, and one end of a pair of upper and lower ends is rotatably connected to the main link around the rotation center of the first support, which is the rotation center, and the other end is rotatably connected to the other structure around the rotation center of the second support, which is the rotation center. The aforementioned one support rotation center is located on the main link central axis connecting the aforementioned one rotation center and the aforementioned other rotation center, and the distance between the aforementioned one rotation center and the aforementioned one support rotation center, the distance between the aforementioned one support rotation center and the aforementioned other rotation center, and the distance between the aforementioned one support rotation center and the aforementioned other support rotation center are approximately equal. The slide mechanism includes the slide member and a slide guide member that restricts the vertical movement of the slide member and allows horizontal movement. The slide guide member has a rail-shaped member and a wheel-shaped member whose vertical movement is constrained by the rail-shaped member but which is capable of horizontal movement, and the wheel-shaped member supports the slide member. An object support device characterized by the following features.

11. 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 based on the base, A slide mechanism having a slide member which is a member that is constrained to move up and down but can move horizontally, Equipped with, The table support mechanism includes a vertical spring member that generates an upward spring force on the table based on the base, and a link mechanism having a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the one rotation center, and the other end is directed toward the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The aforementioned link mechanism further comprises a pair of left and right second main links, The second main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the second rotation center which is the rotation center, and the other end is directed toward the other structure. At least one of the other ends of the second main link is rotatably connected to the slide member around the other second rotation center, which is the rotation center. An object support device characterized by the following features.

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 based on the base, A slide mechanism having a slide member which is a member that is constrained to move up and down but can move horizontally, Equipped with, The table support mechanism includes a vertical spring member that generates an upward spring force on the table based on the base, and a link mechanism having a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the one rotation center, and the other end is directed toward the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The link mechanism comprises a pair of left and right main links and a pair of left and right support links. The support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination of the main link, and one end is connected to a pair of left and right main links so as to be rotatable around the rotation center of one support, which is the rotation center, and the other end is connected to the other structure so as to be rotatable around the rotation center of the other support, which is the rotation center. The aforementioned link mechanism further comprises a pair of left and right second main links, The second main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the second rotation center which is the rotation center, and the other end is directed toward the other structure. At least one of the other ends of the second main link is rotatably connected to the slide member around the other second rotation center, which is the rotation center. An object support device characterized by the following features.

13. 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 based on the base, A slide mechanism having a slide member which is a member that is constrained to move up and down but can move horizontally, Equipped with, The table support mechanism includes a vertical spring member that generates an upward spring force on the table based on the base, and a link mechanism having a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the one rotation center, and the other end is directed toward the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The aforementioned link mechanism further comprises a pair of left and right second main links and a pair of left and right interlocking links. The second main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the second rotation center which is the rotation center, and the other end is directed toward the other structure. At least one of the other ends of the second main link is rotatably connected to the slide member around the other second rotation center which is the rotation center, The aforementioned interlocking link is a long member whose longitudinal direction is horizontal, and one end of a pair of left and right ends is rotatably connected to the main link around the first interlocking rotation center, which is the center of rotation, and the other end is rotatably connected to the second main link around the second interlocking rotation center, which is the center of rotation. An object support device characterized by the following features.

14. 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 based on the base, A slide mechanism having a slide member which is a member that is constrained to move up and down but can move horizontally, Equipped with, The table support mechanism includes a vertical spring member that generates an upward spring force on the table based on the base, and a link mechanism having a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the one rotation center, and the other end is directed toward the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The link mechanism comprises a pair of left and right main links and a pair of left and right support links. The support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination of the main link, and one end is connected to a pair of left and right main links so as to be rotatable around the rotation center of one support, which is the rotation center, and the other end is connected to the other structure so as to be rotatable around the rotation center of the other support, which is the rotation center. The aforementioned link mechanism further comprises a pair of left and right second main links and a pair of left and right interlocking links. The second main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the second rotation center which is the rotation center, and the other end is directed toward the other structure. At least one of the other ends of the second main link is rotatably connected to the slide member around the other second rotation center which is the rotation center, The aforementioned interlocking link is a long member whose longitudinal direction is horizontal, and one end of a pair of left and right ends is rotatably connected to the main link around the first interlocking rotation center, which is the center of rotation, and the other end is rotatably connected to the second main link around the second interlocking rotation center, which is the center of rotation. An object support device characterized by the following features.

15. 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 based on the base, A slide mechanism having a slide member which is a member that is constrained to move up and down but can move horizontally, Equipped with, The table support mechanism includes a vertical spring member that generates an upward spring force on the table based on the base, and a link mechanism having a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the one rotation center, and the other end is directed toward the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The aforementioned link mechanism further comprises a pair of left and right second main links, a pair of left and right second support links, and a pair of left and right interlocking links. The second main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the second rotation center which is the rotation center, and the other end is directed toward the other structure. At least one of the other ends of the second main link is rotatably connected to the slide member around the other second rotation center which is the rotation center, The second support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination of the second main link, and one end of a pair of upper and lower ends is rotatably connected to the second main link around the first second support rotation center, which is the rotation center, and the other end is rotatably connected to the other structure around the second second support rotation center, which is the rotation center. The aforementioned interlocking link is a long member whose longitudinal direction is horizontal, and one end of a pair of left and right ends is rotatably connected to the main link around the first interlocking rotation center, which is the center of rotation, and the other end is rotatably connected to the second main link around the second interlocking rotation center, which is the center of rotation. An object support device characterized by the following features.

16. 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 based on the base, A slide mechanism having a slide member which is a member that is constrained to move up and down but can move horizontally, Equipped with, The table support mechanism includes a vertical spring member that generates an upward spring force on the table based on the base, and a link mechanism having a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the one rotation center, and the other end is directed toward the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The link mechanism comprises a pair of left and right main links and a pair of left and right support links. The support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination of the main link, and one end is connected to a pair of left and right main links so as to be rotatable around the rotation center of one support, which is the rotation center, and the other end is connected to the other structure so as to be rotatable around the rotation center of the other support, which is the rotation center. The aforementioned link mechanism further comprises a pair of left and right second main links, a pair of left and right second support links, and a pair of left and right interlocking links. The second main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the second rotation center which is the rotation center, and the other end is directed toward the other structure. At least one of the other ends of the second main link is rotatably connected to the slide member around the other second rotation center which is the rotation center, The second support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination direction of the second main link, and one end of a pair of upper and lower ends is rotatably connected to the second main link around the first second support rotation center, which is the rotation center, and the other end is rotatably connected to the other structure around the second second support rotation center, which is the rotation center. The aforementioned interlocking link is a long member whose longitudinal direction is horizontal, and one end of a pair of left and right ends is rotatably connected to the main link around the first interlocking rotation center, which is the center of rotation, and the other end is rotatably connected to the second main link around the second interlocking rotation center, which is the center of rotation. An object support device characterized by the following features.

17. The aforementioned one linked rotation center coincides with the aforementioned one support rotation center, and the aforementioned other linked rotation center coincides with the aforementioned one second support rotation center. The object support device according to feature 16.

18. 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 based on the base, A slide mechanism having a slide member which is a member that is constrained to move up and down but can move horizontally, Equipped with, The table support mechanism includes a vertical spring member that generates an upward spring force on the table based on the base, and a link mechanism having a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the one rotation center, and the other end is directed toward the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The link mechanism comprises a pair of left and right main links and a pair of left and right support links. The support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination of the main link, and one end is connected to a pair of left and right main links so as to be rotatable around the rotation center of one support, which is the rotation center, and the other end is connected to the other structure so as to be rotatable around the rotation center of the other support, which is the rotation center. The aforementioned link mechanism further comprises a pair of left and right upper guide links, a pair of left and right lower guide links, and a pair of left and right interlocking links. The upper guide link is a long member that tilts in the longitudinal direction, and one end of a pair of upper and lower ends is rotatably connected to one structure around the rotation center of the upper guide, which is the rotation center, and the other end is rotatably connected to one end of a pair of upper and lower ends of the lower guide link around the rotation center of the lower guide, which is the rotation center. The lower guide link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination of the upper guide link, and is a link to which the other end of a pair of upper and lower ends is rotatably connected to the other structure around the other lower guide rotation center, which is the rotation center. The aforementioned interlocking link is a long member that aligns horizontally in its longitudinal direction, with one end rotatably connected to one of the main links or the support links around a single interlocking rotation center, which is the center of rotation, and the other end of a pair of left and right ends rotatably connected to one of the upper guide links or the lower guide links around a single interlocking rotation center, which is the center of rotation. An object support device characterized by the following features.

19. 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 based on the base, A slide mechanism having a slide member which is a member that is constrained to move up and down but can move horizontally, Equipped with, The table support mechanism includes a vertical spring member that generates an upward spring force on the table based on the base, and a link mechanism having a pair of left and right main links. The main link is a long member that is inclined in the longitudinal direction, and one of its pair of upper and lower ends is connected to one structure so as to be rotatable around the one rotation center, and the other end is directed toward the other structure. At least one of the main links has its other end rotatably connected to the slide member around the other rotation center, which is the rotation center. Here, When one end of the main link is the upper end, the one structure is the table and the other structure is the base. When one end of the main link is the lower end, the one structure is the base and the other structure is the table. The link mechanism comprises a pair of left and right main links and a pair of left and right support links. The support link is a long member whose longitudinal direction is inclined in the opposite direction to the inclination of the main link, and one end is connected to a pair of left and right main links so as to be rotatable around the rotation center of one support, which is the rotation center, and the other end is connected to the other structure so as to be rotatable around the rotation center of the other support, which is the rotation center. The aforementioned one support rotation center is located on the main link central axis connecting the aforementioned one rotation center and the aforementioned other rotation center, and the distance between the aforementioned one rotation center and the aforementioned one support rotation center, the distance between the aforementioned one support rotation center and the aforementioned other rotation center, and the distance between the aforementioned one support rotation center and the aforementioned other support rotation center are approximately equal. The one rotation center of at least one main link is fixed to the one structure so as not to move relative to it. The sliding member is constrained to move up and down but is capable of moving horizontally. The table support mechanism comprises the vertical spring member, the link mechanism, and the locking prevention mechanism. The anti-locking mechanism supports the table on the base and restrains the relative horizontal movement between the table and the base, allowing it to move freely in the vertical direction. An object support device characterized by the following features.

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