JP6178653B2 - Bearing structure - Google Patents

Description

  The present invention relates to a support device for supporting an upper structure with a lower structure, for example.

  Conventionally, for example, a relatively movable structure such as a bridge, a base-isolated structure, or a connecting part that connects fixed structures, a supported structure (upper structure) such as a main girder, a pier, etc. Between the upper support fixed to the supported structure (upper structure) and the lower support fixed to the support structure (lower structure). A support device is provided in which the boundary surfaces, that is, the sliding surfaces slide.

  For example, the support device disclosed in Patent Document 1 has a structure in which the sliding surface of the lower collar is formed long in a predetermined direction and allows sliding in the longitudinal direction with respect to the lower collar of the upper collar, and in the longitudinal direction. On the other hand, with respect to the lower rivet having a substantially T-shaped cross section in the width direction that intersects the upper heel, the upper heel is restricted from being spaced apart from the lower heel in the upward and width directions by being locked to the T-shaped flange portion. Has been.

Therefore, the support device of Patent Document 1 can prevent the upper collar from sliding in the longitudinal direction with respect to the lower collar, and the upper collar from rising relative to the lower collar or being relatively moved in the width direction and separated. However, as in the bearing device disclosed in Patent Document 2 in which the sliding surface of the upper and lower ridges is formed in a spherical surface convex upward, the upper heel slides in the inclined direction with respect to the lower heel. It was possible to slide along the bearing device installation surface (ground).
Accordingly, it is difficult to safely support the upper structure that moves relative to the lower structure while allowing various postures.

JP-A-9-210121 JP 2006-118170 A

  Therefore, the present invention provides a support structure that can safely support an upper structure that moves relatively in various postures with respect to the lower structure without the upper collar separating from the lower collar in the vertical direction. Objective.

The present invention is composed of upper and lower ridges disposed at the opposing portions of the upper structure and the lower structure, and allows sliding between the sliding surfaces at the opposed portions of the upper and lower ridges. In addition, the sliding surface of one of the upper collar and the lower collar is formed longer in a predetermined direction than the sliding surface of the other collar, and the relative relationship between the upper collar and the lower collar A movable support device that allows sliding in the longitudinal direction, and a restriction means for restricting the vertical separation of the upper and lower eyelids is formed long in the predetermined direction, and the upper and Provided in any one of the lower rods, the other rod among the upper rod and the lower rod, the regulated member regulated by the regulating means, the sliding member having the sliding surface, and at least a part Is a support member disposed between the regulated member and the sliding member In constructed, the opposed surfaces of the bearing member and each of the controlled member and the sliding member, the support member is tiltable, composed of convex spherical surfaces in either the vertical direction, the upper At least one of the sliding surfaces in each of the sliding surface that slides on the scissors and the lower scissors and the facing surface on which the regulating means and the regulated member slide facing each other Friction reducing means for reducing friction in a sliding state is provided, and the restricting means and the regulated member are opposed to each other in a plane and are slidable in the predetermined direction .

At least one of the sliding surfaces in each of the sliding surface that slides on the upper and lower collars and the facing surface on which the regulating means and the regulated member slide facing each other. One surface is at least one of the sliding surface of the upper collar and the sliding surface of the lower collar, and an opposing surface on which the regulating means and the regulated member slide to face each other. It means at least one of the surfaces. Further, the friction reducing means is a means constituted by a material having a low friction coefficient such as a sliding resin material, a means constituted by a smooth surface obtained by smoothing the surface of a steel member, for example, or a friction coefficient on the member surface. It is possible to use a means by a coating process or affixing using a low material, or a means by forming a non-lubricated film such as graphite or molybdenum disulfide.

According to the present invention, the upper structure can be safely supported by the lower structure without causing the upper collar to be separated from the lower fence in the vertical direction even with respect to the vertical motion earthquake input.
Specifically, by providing a restriction means for restricting the vertical separation of the upper and lower eyelids in either the upper or lower eyelids, the upper eyelids are separated from the lower eyelids in the vertical direction. Therefore, it is possible to safely support the upper structure that moves relatively in various postures.

  Further, by forming the sliding surface of one of the upper collar and the lower collar longer in a predetermined direction than the sliding surface of the other collar, the upper collar and the lower collar are It can slide relatively in the longitudinal direction.

  Furthermore, the regulated member that is regulated by the regulating means and the sliding member, wherein one of the upper collar and the lower collar is slid with the other collar whose sliding surface is long in a predetermined direction. A sliding member having a surface, and a support member at least partially disposed between the regulated member and the sliding member, each of the regulated member and the sliding member and the bearing member The support member is made to be inclined with respect to the regulated member and the sliding member by configuring the opposite surface to be a spherical surface that is convex in any of the vertical directions so that the support member can be inclined. In other words, the upper eyelid and the lower eyelid can be inclined in either direction with respect to one eyelid.

  Therefore, the upper rod and the lower rod can slide in the longitudinal direction in a state where the vertical separation is restricted, and the other rod can be inclined with respect to one rod, It is possible to safely support superstructures that move relatively in various postures.

In addition, at least one of the sliding surfaces in each of the sliding surface that slides on the upper rod and the lower rod and the facing surface on which the regulating means and the regulated member slide facing each other. By providing the friction reducing means for reducing the friction in the sliding state on one surface, the friction on the sliding surface is reduced by the friction reducing means and smoothly slides in the longitudinal direction. The superstructure can be supported safely.

  As an aspect of the present invention, the regulation means for regulating the upward separation of the upper collar by forming the sliding surface of the lower collar longer in the predetermined direction than the sliding surface of the upper collar. In addition to the lower rod, the upper rod can be constituted by the regulated member, the sliding member, and the support member connected to the upper structure.

According to the present invention, the upper structure can be safely supported by the lower structure without causing the upper cage to be spaced apart upward from the lower cage even in the case of vertical earthquake input.
Specifically, the lower heel is provided with a restricting means for restricting the upward separation of the upper heel with respect to the lower heel, and the sliding surface of the lower heel is formed longer in a predetermined direction than the sliding surface of the upper heel. And at least part of the upper collar is disposed between the regulated member and the sliding member, the regulated member regulated by the regulating means, the sliding member having the sliding surface. The bearing member is composed of a spherical surface that protrudes in any of the vertical directions so that the bearing member can be inclined with respect to each of the regulated member and the sliding member. As a result, the upper arm is not separated upward from the lower arm, and the support member is slid in the inclined direction with respect to the regulated member and the sliding member on the upper arm, and the upper arm is It can also be inclined in the direction of.

  Therefore, while allowing the upper lid to slide relative to the lower collar in the longitudinal direction, the upper collar can be inclined relative to the lower collar, and relative to the upper structure in various postures. It is possible to safely support the superstructure moving to

  Further, as an aspect of the present invention, the restriction means includes: a separation direction restriction means for restricting the separation in the vertical direction of the restricted member; and a width direction restriction means for restricting relative movement in the width direction intersecting the longitudinal direction. It can comprise, and the said to-be-regulated member, the said separation | spacing direction regulation means, and the said width direction regulation means can be comprised so that sliding is possible while facing in a plane.

According to the present invention, the upper structure slides smoothly in each direction without being separated in the width direction in addition to the vertical direction with respect to the lower structure, and the upper structure is safely supported by the lower structure. be able to.
In addition, since the regulated member, the separation direction regulating means and the width direction regulating means face each other in a plane and are configured to be slidable, for example, the regulated member and the regulating means abut on each other locally. As compared with the case where either one of them is damaged by sliding, a reliable regulated state can be realized over a long period of time. Further, since the regulated member and the separation direction regulating means and the width direction regulating means are opposed to each other in a plane, the regulated member and the separation direction regulating means and the width direction regulating means can be easily opposed to each other. Friction reducing means can be provided.

  According to the present invention, it is possible to provide a support structure that can safely support an upper structure that moves relatively in various postures with respect to the lower structure without the upper collar being separated from the lower collar in the vertical direction. .

The perspective view of a movable support apparatus. Explanatory drawing of a movable support apparatus. The disassembled perspective view of a movable support apparatus. The disassembled perspective view of a movable support apparatus. Explanatory drawing of the movable support apparatus of the state inclined and movable to the longitudinal direction. Explanatory drawing of the movable support apparatus of the state inclined in the width direction.

An embodiment of the present invention will be described below with reference to FIGS.
FIG. 1 is a perspective view of the movable bearing device 1, and FIG. 2 is an explanatory diagram of the movable bearing device 1.

  Specifically, FIG. 1 is shown with a part of the front side of the movable support device 1 cut out for easy understanding of the structure of the movable support device 1. 2A is a cross-sectional view taken along the line AA in FIG. 1, FIG. 2B is a cross-sectional view taken along the line BB, and FIG. 2C is a plan view of the movable support device 1. Is shown.

  3 shows an exploded perspective view of the movable bearing device 1 as viewed from above, FIG. 4 shows an exploded perspective view of the movable bearing device 1 as viewed from below, and FIG. FIG. 6 shows an explanatory view of the movable bearing device 1 in a state inclined and movable in the direction L, and FIG. 6 shows an explanatory view of the movable bearing device 1 in a state where the upper collar 10 is inclined in the width direction W with respect to the lower collar 20. Yes.

  Specifically, FIG. 5A shows a cross-sectional view taken along line BB in FIG. 1 in a state where the upper collar 10 is movable in the longitudinal direction L with respect to the lower collar 20 and is inclined in the longitudinal direction L. FIG. (B) has shown the top view of the movable support apparatus 1 of the same state. 6A is a cross-sectional view taken along the line AA in FIG. 1 in a state where the upper collar 10 is inclined in the width direction W with respect to the lower collar 20, and FIG. 6B is a movable support device 1 in the same state. FIG. 3 and 4, as in FIG. 1, a part of the front side of each component of the movable support device 1 is cut out for easy understanding of the structure of each component constituting the movable support device 1. The illustration is missing.

  The movable bearing device 1 is a bearing device that supports an upper structure with a lower structure (not shown), and includes a lower rod 20 disposed on the upper portion of the lower structure and an upper rod 10 disposed on the bottom portion of the upper structure. It is the structure which permits the movement and inclination of the longitudinal direction L of the upper collar 10 with respect to the lower collar 20 to be comprised.

The upper eaves 10 disposed at the bottom of the upper structure includes a floating ring 11, a support upper member 12, a vertical support bearing holding member 13, and a vertical support bearing 14.
The floating ring 11 is a rectangular ring shape in plan view having a circular opening 111 that allows a support upper member body 121 of a support upper member 12 to be described later to pass through in the center in plan view, and is formed at a predetermined height. Further, the portion corresponding to the lower portion of the circular opening 111 on the bottom surface side of the floating ring 11 has a spherical surface that protrudes upward, that is, a spherical surface portion 112 that has an upwardly convex circular arc shape having the same diameter in the cross section in any direction. Thus, the spherical opening 113 is formed. The circular opening 111 is formed to have a larger diameter than the support upper member main body 121 of the support upper member 12 described later.

  Further, the floating ring 11 is made of a structural steel material such as SS400, and the spherical upper surface 11a of the floating ring 11 and the spherical surface portion 112 forming the spherical opening 113 are smooth surfaces obtained by smoothing the steel material surface. In FIG. 1, FIG. 3, and FIG. 4, the smooth surface obtained by performing the smoothing process on the steel material surface is shown by dots.

  The support upper member 12 is formed in a spherical shape having the same diameter as the spherical portion 112 while facing the spherical portion 112 in the lower portion of the support upper member main body 121 and the lower portion of the support upper member main body 121. And the spherical widened portion 122. Further, in the bottom view center of the support upper member bottom surface 12a of the support upper member 12, a spherical portion 123 having an upwardly convex spherical shape, that is, an upwardly convex circular arc shape having the same diameter in the cross section in any direction, A spherical concave portion 124 is formed as a concave portion having a spherical lens shape convex upward.

The spherical spherical surface portion 123 forming the spherical concave portion 124 is concentric with the spherical widened portion 122 formed of a spherical surface having the same diameter as the spherical surface portion 112, and is formed of a spherical surface having a small diameter by the thickness of the spherical widened portion 122. ing.
Similarly to the floating ring 11, the support upper member 12 is made of a structural steel material such as SS400, faces the spherical opening 113 of the floating ring 11 and slides on the surface of the spherical widened portion 122, which will be described later. The spherical portion 123 that slides while facing the vertical support bearing holding member 13 is a smooth surface obtained by performing a smoothing process on the steel surface.

  The vertical support bearing holding member 13 has a spherical lens shape that is upwardly convex in a circular shape when viewed from the bottom, and is made of a structural steel material such as SS400, like the floating ring 11 and the support upper member 12. In addition, the upper spherical surface portion 13a of the vertical support bearing holding member 13 that faces and slides on the spherical surface portion 123 of the spherical concave portion 124 of the spherical widened portion 122 is formed with the same diameter as the spherical surface portion 123 and is smooth on the steel surface. The surface is smooth.

  The vertical support bearing 14 mounted on the holding member bottom surface 13b of the vertical support bearing holding member 13 has a circular plate shape in plan view that is the same as the planar shape of the holding member bottom surface 13b, and is made of a resin sliding material having a low friction coefficient. doing.

  The lower rod 20 disposed on the upper portion of the lower structure is a support lower member 22 that is concave in a front view and is long in the longitudinal direction L, and a pullout that is disposed in symmetrical directions on both sides of the upper portion of the support lower member 22 in the width direction W. It consists of a resistance member 21.

  The support lower member 22 includes a support lower member main body 221 wider than the floating ring 11 in the upper collar 10, and guide side portions 222 protruding upward from the main body upper surface 221 a on both sides in the width direction W of the support lower member main body 221. A sliding groove 223 that is formed in a concave shape and surrounds the three sides by the main body upper surface 221 a of the support lower member main body 221 and the guide side inner surface 222 a of the guide side portion 222 is configured.

  The sliding groove 223 has a guide side portion so that the floating ring 11 of the upper collar 10 can be fitted from above and the separation of the floating ring 11 in the width direction W can be regulated by the guide side inner surface 222a of the guide side portion 222. The interval between the guide side inner side surfaces 222 a of 222 is slightly larger than the length in the width direction W of the floating ring 11. In the present embodiment, the distance between the guide side portion inner side surfaces 222 a of the guide side portion 222, that is, the length in the width direction W of the sliding groove 223 is formed to be about 3 mm larger than the floating ring 11.

  Further, the protruding amount of the guide side portion 222 from the main body upper surface 221a, that is, the depth of the sliding groove 223 is formed to be slightly higher than the height of the floating ring 11, and in this embodiment, the upper surface 221a of the main body is formed. The protruding amount of the guide side part 222 from the height of the floating ring 11 is formed to be about 3 mm higher.

  Further, the support lower member 22 is made of a structural steel material such as SS400 like the floating ring 11, the support upper member 12 and the vertical support bearing holding member 13 constituting the upper guide 10, and the vertical support bearing of the upper guide 10. The main body upper surface 221a of the support lower member main body 221 that faces and slides is formed as a smooth surface obtained by performing a smoothing process on the steel material surface.

  The pull-out resistance member 21 covers the guide side portion upper surface 222b of the guide side portion 222 of the support lower member 22 so as to straddle the guide side portion outer surface 222c, and the horizontal portion 211 protrudes toward the sliding groove 223. The cross-section L-shaped member to be mounted as described above is made of a structural steel material such as SS400.

  The pull-out resistance member 21 mounted on the guide side portions 222 on both sides in the width direction W is mounted in a bilaterally symmetrical direction so that the respective horizontal portions 211 protrude toward the sliding groove 223. It is fixed to the guide side part 222 with a fastening jig (not shown).

  The horizontal portion bottom surface 211a of the horizontal portion 211 of the pull-out resistance member 21 attached to the guide side portion 222 is floated in a sliding groove 223 formed at substantially the same height as the floating ring 11 of the upper collar 10. In order to face and slide against the ring upper surface 11a of the ring 11, the surface of the steel material is a smooth surface.

Thus, the movable support apparatus 1 which comprised each component assembled | attached and comprised the upper rod 10 arrange | positioned at the bottom part of an upper structure, and the lower rod 20 arrange | positioned at the upper part of a lower structure.
More specifically, first, the vertical support bearing 14 is attached to the holding member bottom surface 13b of the vertical support bearing holding member 13 and integrated. Then, the vertical support bearing holding member 13 is fitted into the spherical concave portion 124 of the support upper member 12 so that the spherical portion 13a of the vertical support bearing holding member 13 and the spherical portion 123 of the support upper member 12 face each other. In addition, the support upper member main body 121 of the support upper member 12 is inserted into the circular opening 111 of the floating ring 11, and the spherical widened portion 122 is changed to the spherical opening 113 so that the spherical widened portion 122 and the spherical portion 112 face each other. Fit and assemble upper collar 10. Then, the floating ring 11 is fitted into the sliding groove 223 so that the bottom surface of the vertical support bearing 14 faces the main body upper surface 221 a of the support lower member 22. And the pulling-out resistance member 21 is fixed from the upper part, the lower rod 20 is assembled | attached, and the movable support apparatus 1 is comprised.

  The above description of the assembling order is assembled in an assembling order that makes the interrelationships of the respective components clear, and is not limited to this order. For example, with respect to the main body upper surface 221a of the support lower member 22 The movable support device 1 may be configured by assembling the vertical support bearing 14, the vertical support bearing holding member 13, the support upper member 12, the floating ring 11, and the pull-out resistance member 21 in this order from the bottom.

  The upper rod 10 and the lower rod 20 of the movable bearing device 1 assembled in this way are the vertical support bearing 14 of the upper rod 10 and the main body of the supporting lower member main body 221 that becomes the bottom surface of the sliding groove 223 in the lower rod 20. The upper surface 221a faces the longitudinal direction L so as to be slidable. Similarly, the ring upper surface 11a of the floating ring 11 and the horizontal portion bottom surface 211a of the horizontal portion 211 of the pull-out resistance member 21 are slidably opposed to each other in the longitudinal direction L.

  Further, in the upper collar 10, in the spherical concave portion 124, the spherical portion 123 forming the spherical concave portion 124 and the spherical portion 13a of the vertical support bearing holding member 13 are slidably opposed along the spherical surface, and the spherical opening portion is provided. In 113, the spherical surface part 112 and the spherical widening part 122 which form the spherical opening part 113 are slidably opposed along the spherical surface.

  Specifically, for example, as shown in FIG. 5, a main body upper surface 221 a of a support lower member main body 221 that is a smooth surface obtained by smoothing a steel surface, and a vertical support bearing 14 made of a resin sliding material, Are opposed to each other so that the upper collar 10 can move relative to the lower collar 20 in the longitudinal direction L. At this time, the separation of the floating ring 11 in the width direction W is regulated by the guide side portion 222 constituting the sliding groove 223, and the separation in the drawing direction is regulated by the horizontal portion 211 of the drawing resistance member 21.

  Further, the spherical surface portion 123 forming the spherical concave portion 124, the spherical surface portion 13a of the vertical support bearing holding member 13, and the spherical surface portion 112 forming the spherical opening 113 and the spherical widening portion 122 are spherical by the respective smooth surfaces. Therefore, the upper support member 12 is supported on the upper collar 10 with respect to the floating ring 11 and the vertical support bearing holding member 13, for example, in the longitudinal direction L (see FIG. 5) or in the width direction W (see FIG. 6). ) In any direction.

  Therefore, even if the upper structure on which the upper rod 10 is disposed moves relative to the lower structure on which the lower rod 20 is disposed, in the longitudinal direction L or the tilt direction, Can be supported safely.

  As described above, the movable bearing device 1 that includes the upper rod 10 and the lower rod 20 that are disposed at the respective opposing portions of the upper structure and the lower structure and allows sliding on the sliding surfaces of the upper structure and the lower structure, By forming the main body upper surface 221a of the support lower member main body 221 that is a sliding surface in the collar 20 wider in the longitudinal direction L than the vertical support bearing 14 that constitutes the sliding surface in the upper collar 10, the lower collar 20 On the other hand, the upper collar 10 can slide relatively in the longitudinal direction L.

  Further, since the pullout resistance member 21 is provided on the lower rod 20, the horizontal portion 211 of the pullout resistance member 21 restricts the separation of the floating ring 11 in the pulling direction. Further, the support upper member 12 having the spherical widened portion 122, the vertical support bearing holding member 13, and the vertical sandwiched between the spherical surface portion 112 of the floating ring 11 and the main body upper surface 221 a of the support lower member main body 221 in the lower collar 20. The support bearing 14 is regulated in the extraction direction by the extraction resistance member 21 through the floating ring 11. Therefore, it is possible to prevent the upper collar 10 from being separated from the lower collar 20 in the drawing direction.

  As described above, the floating ring 11 of the upper collar 10 fitted into the sliding groove 223 of the lower collar 20 is regulated in the extraction direction by the extraction resistance member 21 and is guided by the guide side portion 222 constituting the sliding groove 223. The upper collar 10 can slide more smoothly in the longitudinal direction L without being separated from the lower collar 20 in the crossing direction (width direction W).

  In addition, since the support side member 22 and the floating ring 11 in the lower collar 20 are formed with a flat guide side inner surface 222a and a side surface 11b of the floating ring 11 facing each other, for example, with respect to the guide side inner surface 222a Thus, there is no possibility that the guide side portion inner side surface 222a and the floating ring 11 are partially damaged as in the case where the floating ring 11 is slid while being locally contacted. A regulated state can be realized.

  Further, the vertical support bearing 14 constituting the sliding surface of the upper collar 10 is made of a resin sliding material having a low friction coefficient, and the main body upper surface 221a constituting the sliding surface of the lower collar 20 is subjected to a smoothing process. Thus, the friction between the vertical support bearing 14 and the upper surface 221a of the main body 221a due to the sliding of the upper collar 10 with respect to the lower collar 20 in the longitudinal direction L is reduced. The upper structure can be safely supported by the structure.

  Furthermore, since both the ring upper surface 11a of the floating ring 11 and the horizontal partial bottom surface 211a of the horizontal portion 211 of the pull-out resistance member 21 of the lower collar 20 are formed as a smooth surface obtained by smoothing the steel surface, The upper collar 10 can smoothly slide in the longitudinal direction L.

  Furthermore, the upper collar 10 is divided into a floating ring 11 whose separation in the drawing direction is restricted by the drawing resistance member 21, a vertical support bearing holding member 13 to which a vertical support bearing 14 constituting a sliding surface is attached, and a spherical widening. The portion 122 includes a support upper member 12 having a spherical widened portion 122 disposed between the floating ring 11 and the vertical support bearing holding member 13, and faces the spherical portion 112 and the spherical portion 112 of the floating ring 11. The spherical widened portion 122 of the support upper member 12 and the spherical surface portion 123 forming the spherical concave portion 124 and the spherical portion 13a of the vertical support bearing holding member 13 facing the spherical surface portion 123 are configured with a spherical surface convex upward. Therefore, the upper support member 12 is not required for the upper ring 10 with respect to the floating ring 11 and the vertical support bearing holding member 13. It can also be slid in the direction of inclination. Therefore, the upper rod 10 and the lower rod 20 can slide in the longitudinal direction L while being regulated so as not to be separated in the drawing direction and the crossing direction (width direction W) and 10 can slide in an inclined direction, and can support an upper structure that moves relative to the lower structure in various postures safely.

  Further, in the upper collar 10, the spherical surface portion 123 that forms the spherical concave portion 124, the spherical surface portion 13a of the vertical support bearing holding member 13, and the spherical surface portion 112 that forms the spherical opening 113 and the spherical widening portion 122, respectively. The spherical spherical portion 123 forming the spherical concave portion 124 and the spherical portion 13a of the vertical support bearing holding member 13 are concentric with the spherical widening portion 122 formed of a spherical surface having the same diameter as the spherical portion 112. Since the spherical widened portion 122 is formed of a spherical surface having a small diameter, the sliding upper member 12 slides smoothly along these spherical surfaces and the floating ring 11 and the vertical support bearing holding member 13 are supported. , Can tilt smoothly in any direction.

  In this way, in the movable bearing device 1 that allows the upper collar 10 to be tilted with respect to the lower collar 20, even when the bearing upper member 12 is tilted, the spherical surface portion 112, the spherical widened portion 122, and the spherical surface are formed in a spherical shape. The portion 123 and the spherical surface portion 13a are kept in contact with each other, the ring upper surface 11a of the floating ring 11 is in contact with the horizontal portion bottom surface 211a of the horizontal portion 211, and the vertical support bearing 14 and the main body upper surface 221a are in contact. That is, even when the upper eyelid 10 is inclined with respect to the lower eyelid 20, the upper eyelid 10 itself is not lifted with respect to the lower eyelid 20, and each component is not separated from the upper eyelid 10 as well. Since the slidable contact state is maintained reliably, for example, when modeling and analyzing the support state of the movable support device 1 in various postures, there are no uncertain elements such as separation or lifting of members. More accurate analysis. Therefore, a safe movable support device based on accurate analysis can be configured.

As described above, in the correspondence between the configuration of the present invention and the above-described embodiment,
The sliding surface of one hook corresponds to the vertical support bearing 14 of the upper hook 10,
Similarly,
The sliding surface of the other hook corresponds to the main body upper surface 221a of the support lower member main body 221 in the lower hook 20,
The restricting means and the separating direction restricting means correspond to the pull-out resistance member 21,
The regulated member corresponds to the floating ring 11,
The sliding member corresponds to the vertical support bearing holding member 13,
The support member corresponds to the support upper member 12,
The opposed surfaces of the regulated member and the sliding member and the support member correspond to the spherical surface portion 112, the spherical widened portion 122, the spherical surface portion 123, and the spherical surface portion 13a,
The friction reducing means corresponds to the vertical support bearing 14,
The width direction restricting means corresponds to the guide side portion 222, but is not limited to the above embodiment.

For example, in the floating ring 11 and the lower collar 20, the surfaces of the side surface 11b of the floating ring 11 and the guide side portion inner side surface 222a of the guide side portion 222 that slide while facing each other may be smooth surfaces that have been subjected to a smoothing process.
Alternatively, the pull-out resistance member 21 and the support lower member 22 may be constituted by a lower collar 20 integrated.

  Furthermore, the upper and lower eyelids 10 and 20 in the movable support device 1 described above may be interchanged. Specifically, the movable support device when the upper and lower sides are switched is constituted by an upward pulling resistance member 21 and a support lower member 22 which are directed downward, which is opposite to the downward direction shown in FIG. The support upper member 12, the vertical support bearing holding member 13, and the vertical support bearing 14 constitute a lower arm. Even with the movable bearing device configured as described above, the same effects as those of the movable bearing device 1 described above can be obtained.

  Further, the main body upper surface 221a on which the vertical support bearing 14 made of a resin sliding material slides, the ring upper surface 11a of the floating ring 11, the horizontal portion bottom surface 211a of the horizontal portion 211 of the pull-out resistance member 21, and a spherical surface formed in a spherical shape. The portion 112, the spherical widened portion 122, the spherical portion 123, and the spherical portion 13a are reduced in friction as smoothed smooth surfaces. However, a friction-reducing resin material may be attached, and graphite, molybdenum disulfide, etc. A non-lubricating film may be formed to reduce friction.

  The spherical surface portion 112 and the spherical widening portion 122 that slide along the spherical surface, and the spherical surface portion 123 and the spherical surface portion 13a may be formed in a downward convex spherical shape, and further, for example, the sliding spherical surface portion 112 In addition, the spherical widened portion 122 may be formed to have different convex directions so that the spherical surface convex upwards and the spherical surface portion 123 and the spherical surface portion 13a convex spherically downward.

  Furthermore, in the above description, the floating ring 11, the support upper member 12, the vertical support bearing holding member 13, the pull-out resistance member 21 or the support lower member 22 are made of structural steel such as SS400. It may be composed of a steel material, or may be composed of a stainless steel material.

DESCRIPTION OF SYMBOLS 1 ... Movable bearing apparatus 10 ... Upper collar 11 ... Floating ring 12 ... Supporting upper member 13 ... Vertical support bearing holding member 13a ... Spherical surface part 13b ... Holding member bottom face 14 ... Vertical support bearing 20 ... Lower collar 21 ... Pull-out resistance member 112 ... Spherical surface portion 122 ... spherical widened portion 123 ... spherical surface portion 221 ... support lower member main body 221a ... main body upper surface 222 ... guide side portion L ... longitudinal direction

Claims (3)

The upper structure and the lower structure are composed of upper and lower ridges disposed in the opposing portions of the upper structure and the lower structure, and the sliding surfaces of the opposed portions of the upper structure and the lower structure are allowed to slide. The sliding surface of one of the upper collar and the lower collar is formed longer in a predetermined direction than the sliding surface of the other collar, and the relative longitudinal direction of the upper collar and the lower collar is formed. A movable bearing device that allows sliding,
A regulation means for regulating the vertical separation of the upper and lower eyelids is formed long in the predetermined direction, and is provided in either one of the upper or lower eyelids,
The other heel of the upper heel and the lower heel,
A regulated member regulated by the regulating means;
A sliding member having the sliding surface;
At least a part of the support member is disposed between the regulated member and the sliding member,
The opposing surface of each of the regulated member and the sliding member and the support member is constituted by a spherical surface that is convex in any of the vertical directions, in which the support member can be inclined ,
At least one of the sliding surfaces in each of the sliding surface that slides on the upper collar and the lower collar, and the opposing surface on which the regulating means and the regulated member slide facing each other. Friction reducing means for reducing friction in the sliding state on the surface,
The movable bearing device configured such that the regulating means and the regulated member face each other in a plane and are slidable in the predetermined direction . The sliding surface of the lower collar is formed longer in the predetermined direction than the sliding surface of the upper collar,
The lower rod is provided with the regulation means for regulating the upward separation of the upper collar,
The upper arm
The regulated member, the sliding member, and the support member connected to the superstructure
The movable bearing device according to claim 1 . The regulating means,
A separation direction restriction means for restricting the vertical separation of the regulated member, and a width direction restriction means for restricting relative movement in the width direction intersecting the longitudinal direction,
Wherein the the controlled member, together with the the separation direction restricting means and the width direction regulating means is opposed in the plane, the movable support device according to claim 1 or 2 slidably configuration.

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