JP6869008B2 - Movable bearing device - Google Patents

Description

The present invention relates to, for example, a movable bearing device in a building field or a civil engineering field in which an upper structure is supported by a lower structure.

Conventionally, for example, in relatively movable buildings such as bridges, seismic isolated buildings, or connecting parts connecting fixed buildings, supported buildings such as main girders (upper buildings) and bridge piers, etc. The boundary surface between the upper stile and the lower stile fixed to the supported building, that is, the sliding surfaces, which are arranged between the supporting building (lower building) and fixed to the supported building, slide each other. A movable movable support device is provided.

For example, the movable bearing device disclosed in Patent Document 1 has a configuration in which the sliding surface of the lower sill is formed long in a predetermined direction and allows sliding of the upper sill with respect to the lower sill in the longitudinal direction.
In such a movable bearing device, an elastic deforming material such as rubber is placed between the building and the sill so that the sliding surfaces do not hit each other unevenly due to the mounting error of the bearing device or the displacement of the building. The sliding surface member of the bearing is supported by an elastic deforming material such as rubber. By arranging the deformable elastic deformable material such as rubber in this way, it is possible to prevent the elastic deformable material from being deformed and the sliding surface from being unevenly hit.

However, if a fire or the like occurs in a building provided with a movable bearing device provided with such an elastically deformable material such as rubber, the elastically deformed material such as rubber may be burnt out, and the elastically deformed material such as rubber may be burnt out. The height of the movable bearing device changed significantly due to the burning of the rubber, and there was a risk that the building supported by the movable bearing device would be damaged.

Japanese Unexamined Patent Publication No. 9-210121

Therefore, an object of the present invention is to provide a movable bearing device that can slide smoothly and can safely support an upper building with a lower structure even if a fire or the like occurs.

The present invention is a movable support device which is composed of an upper sill and a lower sill arranged at facing portions in an upper structure and a lower structure, and the sliding surfaces of the upper sill and the facing portion of the lower sill slide with each other. A support member having a sliding surface that is slidable with the sliding surface is provided between the upper shoe and the lower shoe, and the upper shoe slide, which is the sliding surface of the upper shoe. The upper sliding surface of the support member facing the upper shoe is formed longer in the first direction than the second direction orthogonal to the first direction in which the surfaces slide relatively, and the upper sliding surface facing the upper shoe is from the upper shoe sliding surface. The length in the first direction is formed to be short, and one of the upper sliding surface and the upper sliding surface is a curved surface that protrudes toward the other in the cross-sectional shape in the second direction , and the first. The cross-sectional shape in the two directions is the same along the first direction, and the other of the upper sliding surface and the upper sliding surface is a concave curved surface in the cross-sectional shape in the second direction. The cross-sectional shape in the second direction is the same along the first direction, and the lower shoe sliding surface, which is the sliding surface of the lower shoe, is formed longer in the second direction than the first direction. The lower sliding surface of the support member facing the lower sill is formed to have a shorter length in the second direction than the lower sill sliding surface, and the lower sill sliding surface and the lower sliding surface are formed. One of them is a curved surface that protrudes toward the other in the cross-sectional shape of the first direction, and the cross-sectional shape of the first direction is the same along the second direction, and the lower shoe sliding surface and The other of the lower sliding surfaces is a concave curved surface in the cross-sectional shape of the first direction, and the cross-sectional shape of the first direction is the same along the second direction, and the support member is Sliding in the first direction with respect to the upper shoe and sliding in the second direction with respect to the lower shoe , the upper shoe and the lower shoe slide in the support member via the support member. It is characterized in that it is configured to be slidable freely in the surface direction formed by the first direction and the second direction.

According to the present invention, it is possible to slide smoothly, and even if a fire or the like occurs, the upper structure can be safely supported by the lower structure.
More specifically, the sliding surface of one of the upper shoe and the lower shoe is directed toward the other shoe in a cross-sectional shape in the second direction orthogonal to the first direction in which the sliding surface is relatively slid. Since it is a protruding curved surface and the sliding surface of the other shoe of the upper shoe and the lower shoe is a concave curved surface in the cross-sectional shape in the second direction, it is not necessary to use an elastic deforming material such as rubber. It is possible to prevent uneven contact between the sliding surfaces at least in the second direction and realize smooth sliding between the sliding surfaces.

In addition, since elastic deformable materials such as rubber that may be burnt down due to fire etc. are not used, even if a fire etc. occurs, the upper building should be safely supported by the lower structure via the movable bearing device. Can be done.

Further, the present invention is a movable support device which is composed of an upper sill and a lower sill arranged on the facing portion of the upper structure and the lower structure, and the sliding surfaces of the upper sill and the facing portion of the lower sill slide with each other. A support member having a sliding surface and a slidable sliding surface is provided between the upper shoe and the lower shoe, and the upper shoe slide is a sliding surface of the upper shoe. One of the moving surface and the upper sliding surface of the support member facing the upper shoe is a curved surface that protrudes toward the other in the cross-sectional shape in the second direction orthogonal to the first direction, and the upper sliding The other of the surface and the upper sliding surface is a concave curved surface in the cross-sectional shape in the second direction, and faces the lower shoe sliding surface which is the sliding surface of the lower shoe and the lower shoe in the support member. One of the lower sliding surfaces is a curved surface that protrudes toward the other in the cross-sectional shape in the first direction, and the other of the lower sliding surface and the lower sliding surface is the first. It is characterized by having a concave curved surface in the cross-sectional shape in the direction.

According to the present invention, in addition to the above-mentioned effect that the upper structure can be safely supported by the lower structure even if a fire or the like occurs, the upper shoe sliding surface, which is the sliding surface of the upper rubber, and the upper rubber sliding surface One of the upper sliding surfaces of the support member facing the upper shoe is a curved surface that projects toward the other in the cross-sectional shape in the second direction orthogonal to the first direction, and the upper sliding surface. And the other of the upper sliding surfaces is a concave curved surface in the cross-sectional shape in the second direction, and faces the lower sill sliding surface which is the sliding surface of the lower sill and the lower sill in the support member. One of the lower sliding surfaces is a curved surface that protrudes toward the other in the cross-sectional shape in the first direction, and the other of the lower sliding surface and the lower sliding surface is the first. Since it is a concave curved surface in the cross-sectional shape in the direction, uneven contact of the sliding surfaces is prevented in the first direction and the second direction without using an elastic deforming material such as rubber, and the sliding surfaces are smoother. Sliding can be realized.

Further, the present invention is a movable support device which is composed of an upper sill and a lower sill arranged on the facing portion of the upper structure and the lower structure, and the sliding surfaces of the upper sill and the facing portion of the lower sill slide with each other. A support member having a sliding surface and a slidable sliding surface is provided between the upper shoe and the lower shoe, and the upper shoe slide is a sliding surface of the upper shoe. The upper sliding surface of the support member facing the upper shoe is formed longer in the first direction than the second direction orthogonal to the first direction in which the moving surface slides relatively. The length in the first direction is made shorter, and one of the upper sliding surface and the upper sliding surface is a curved surface that protrudes toward the other in the cross-sectional shape in the second direction. The other of the shoe sliding surface and the upper sliding surface is a concave curved surface in the cross-sectional shape in the second direction, and the lower shoe sliding surface which is the sliding surface of the lower shoe is from the first direction. The lower sliding surface of the support member, which is formed long in the second direction and faces the lower sill, is formed to have a shorter length in the second direction than the lower sill sliding surface, and the lower sill slides. One of the surface and the lower sliding surface is a curved surface protruding toward the other in the cross-sectional shape in the first direction, and the other of the lower shoe sliding surface and the lower sliding surface is the said. It is characterized by having a concave curved surface in the cross-sectional shape in the first direction.

According to the present invention, in addition to the above-mentioned effect that the upper structure can be safely supported by the lower structure even if a fire or the like occurs, the upper structure and the support member can be slid smoothly. Slides in the first direction, and the lower sill and the support member slide in the second direction. Therefore, the upper sill and the lower sill slide in the first direction via the support member. It can freely slide in the surface direction formed by the second direction.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a movable bearing device that can slide smoothly and can safely support an upper building with a lower structure even if a fire or the like occurs.

Perspective view of the movable bearing device. An exploded perspective view of the movable bearing device. Top view of the movable bearing device. Explanatory drawing of the movable bearing device. Explanatory drawing of the movable bearing device. Explanatory drawing of the movable bearing device. Explanatory drawing of the movable bearing device of another embodiment.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.
1 is a perspective view of the movable bearing device 1, FIG. 2 is an exploded perspective view of the movable bearing device 1, FIG. 3 is a plan view of the movable bearing device 1, and FIGS. 4 to 6 are the movable bearing device 1. The explanatory diagram of is shown. In addition, in FIGS. 1 to 3, the illustration of the lower building 101 and the upper building 102 is omitted.

Specifically, FIG. 4A shows an arrow view of AA of the movable bearing device 1 (FIG. 3), and FIG. 4B shows a view of arrow BB of the movable bearing device 1 (FIG. 3). 5 (a) shows an arrow view taken along the line AA for explaining the rotation tracking of the movable bearing device 1 in the vertical plane in the X direction, and FIG. 5 (b) shows the movable bearing device 1 in the vertical plane in the Y direction. The BB arrow view for explaining the rotation tracking of the above is shown.

FIG. 6A shows a plan view for explaining the relative movement in the X and Y directions, and FIG. 6B shows an arrow view taken along the line AA for explaining the relative movement of the movable bearing device 1 in the X direction. FIG. 6 (c) shows a view taken along the line BB for explaining the relative movement of the movable bearing device 1 in the Y direction.

As shown in each figure, the movable bearing device 1 is a two-way movable bearing that supports the upper building 102 (see FIG. 4) in the lower building 101 (see FIG. 4) so as to be relatively movable in the X and Y directions. It is a device, and the base plate 20 (corresponding to the lower bearing) arranged on the upper part of the lower building 101, the sole plate 10 (corresponding to the upper bearing) arranged on the bottom of the upper building 102, and the sole plate 10 and the base plate 20. It is composed of a base spot 30 (corresponding to a bearing member) which is arranged between the two and is slidably configured.
The X direction and the Y direction are directions orthogonal to each other in the plan view shown in FIG. 3, and the Z direction is a height direction orthogonal to the X direction and the Y direction as shown in FIG.

The sole plate 10 arranged at the bottom of the upper building 102 is a semi-cylindrical semi-cylindrical shape having an arcuate sliding surface 12'that is longer in the X direction than in the Y direction and is convex downward in the Z direction, which is the vertical direction. It is a member of.
Specifically, the sole plate 10 is longer in the X direction than in the Y direction, and has an arcuate arc-shaped cross-section substantially arch-shaped (cross-section substantially arch-shaped) that is convex downward in the Z direction, and the sole plate body 11 is directed downward. It is composed of an upper sill sliding surface member 12 fixed to a mounting portion 11x on a bottom surface having a convex arc shape. The bottom surface of the upper sill sliding surface member 12 is formed as the upper sill sliding surface 12'.
The upper sliding surface member 12 can be fixed to the mounting portion 11x by fixing means such as screwing, or by adhesion or welding.

The base plate 20 arranged on the upper surface of the lower structure 101 is a semi-cylindrical member having an arcuate sliding surface 22'that is longer in the Y direction than in the X direction and is convex upward in the Z direction.
Specifically, the base plate 20 is longer in the Y direction than in the X direction and is convex upward in the Z direction. It is composed of a lower sill sliding surface member 22 fixed to a mounting portion 21x on an arc-shaped upper surface. The upper surface of the lower shoe sliding surface member 22 is formed as the lower shoe sliding surface 22'.
The lower sill sliding surface member 22 can be fixed to the mounting portion 21x by fixing means such as screwing, or by adhesion or welding.

The base pot 30 is slidably arranged between the sole plate 10 and the base plate 20 so as to be slidable with each of the sole plate 10 and the base plate 20.
The base pot 30 has a rectangular parallelepiped shape in a plan view due to a length in the Y direction that is slightly longer than the length in the Y direction of the sole plate 10 and a length in the X direction that is slightly longer than the length in the X direction of the base plate 20 and is in the Z direction. It is a rectangular parallelepiped member having a predetermined height.

Specifically, in the assembled state, the base spot 30 has a substantially square shape in a plan view that protrudes from the sole plate 10 on both sides in the Y direction by a predetermined length and also protrudes from the base plate 20 on both sides in the X direction by a predetermined length. On the rectangular parallelepiped base spot main body 31 whose height in the Z direction is about four times the height of the convex arcuate portion of the sole plate main body 11 and the base plate main body 21, and on the upper surface of the base plate main body 31. The upper sliding surface member 32 fixed to the formed mounting portion 31xa extending in the X direction and the lower sliding surface member 33 fixed to the mounting portion 31xb formed on the bottom surface of the base spot main body 31 extending in the Y direction. It is composed of and.
The upper surface of the upper sliding surface member 32 is formed as the upper sliding surface 32', and the bottom surface of the lower sliding surface member 33 is formed as the lower sliding surface 33'.

The upper sliding surface member 32 is a concave arc-shaped curved surface having an upper surface having the same curvature and shape as the bottom surface of the upper sliding surface member 12 of the sole plate 10 in a cross section in the Y direction. The mounting portion 31xa is an arcuate groove to which the upper sliding surface member 32 is fixed, and extends in the X direction. The upper sliding surface member 32 does not have to be a curved surface as long as it has an upper surface having the same curvature and shape as the bottom surface of the upper sliding surface member 12. In this case, the mounting portion 31xa has an arc shape. Instead, the shape corresponds to the outer shape of the upper sliding surface member 32 that is not a curved surface.

Further, the lower sliding surface member 33 is a concave arc-shaped curved surface having the same curvature and shape as the upper surface of the lower sliding surface member 22 of the base plate 20 in the cross section in the X direction. The mounting portion 31xb is an arcuate groove to which the lower sliding surface member 33 is fixed, and extends in the Y direction. The lower sliding surface member 33 does not have to be a curved surface as long as it has a bottom surface having the same curvature and shape as the upper surface of the lower sliding surface member 22, and in this case, the mounting portion 31xb is a circle. The shape is not arcuate but conforms to the outer shape of the lower sliding surface member 33 which is not a curved surface.

Further, the upper sliding surface member 32 and the lower sliding surface member 33 are fixed by fitting them into the mounting portions 31xa and 31xb which are arc-shaped grooves, but in the case of the mounting portions 31xa and 31xb which are not groove-shaped, the upper sliding surface member 32 and the lower sliding surface member 33 are fixed. The moving surface member 32 and the lower sliding surface member 33 may be fixed by fixing means such as screwing, or by adhesion or welding.

The sliding surfaces 12', 22', 32', 33'consisting of the bottom surfaces of the sliding surface members 12 and 33 and the upper surfaces of the sliding surface members 22 and 32 are made of strings having the same diameter whose curvature does not change. It is a curved surface with an arcuate cross section.
Further, the upper sliding surface member 12, the lower sliding surface member 22, the upper sliding surface member 32 and the lower sliding surface member 33 constituting the sliding surfaces 12', 22', 32', 33' Of these, at least one sliding surface member in the combination of the upper sliding surface member 12 and the upper sliding surface member 32, and the lower sliding surface member 33 and the lower sliding surface member 22 facing each other is made of fluororesin (for example, , Polytetrafluoroethylene (PTFE)), and the other sliding surface member is made of fluororesin (for example, PTFE) or a stainless steel polishing plate.

In the movable bearing device 1 configured in this way, as shown in FIG. 3, the base plate 20 and the base spot 30 can slide in the Y direction, and the sole plate 10 and the base spot 30 slide in the X direction. It is movable. Therefore, the lower structure 101 in which the base plate 20 is fixed on the upper surface and the upper structure 102 in which the sole plate 10 is fixed on the lower surface can freely slide in the X direction and the Y direction via the movable bearing device 1. It is configured.

Specifically, the sole plate 10 and the base plate 20 in the movable bearing device 1 arranged at the facing portions of the upper building 102 and the lower building 101, and the sliding surfaces between the sole plate 10 and the base plate 20 are respectively. A base spot 30 having slidable sliding surfaces 32'and 33' is provided with 12'and 22'.

Further, the upper sliding surface 12'of the sole plate 10 is formed longer in the X direction than the Y direction orthogonal to the X direction in which the sole plate 10 slides relatively, and the upper sliding surface 32 facing the sole plate 10 in the base spot 30. 'Is formed to be shorter in the X direction than the upper sole sliding surface 12'. The upper sliding surface 12'is a curved surface protruding toward the base spot 30 in the cross-sectional shape in the Y direction, and the upper sliding surface 32'is a concave curved surface in the cross-sectional shape in the Y direction.

Further, the lower sliding surface 22'of the base plate 20 is formed longer in the Y direction than the X direction, and the lower sliding surface 33'of the base plate 30 facing the base plate 20 is Y from the lower sliding surface 22'. The length in the direction is formed short. The lower sliding surface 22'is a curved surface that protrudes toward the base spot 30 in the cross-sectional shape in the X direction, and the lower sliding surface 33'is a concave curved surface in the cross-sectional shape in the X direction. Therefore, the movable bearing device 1 can slide smoothly, and even if a fire or the like occurs, the upper building 102 can be safely supported by the lower building 101.

More specifically, as shown in FIGS. 3 and 4, the sole plate 10 and the base spot 30 slide in the X direction, and the base plate 20 and the base spot 30 slide in the Y direction. The base plate 20 can freely slide in the surface direction formed by the X direction and the Y direction via the base plate 30.

Further, since the upper sliding surface 12'is a curved surface protruding toward the base spot 30 in the cross-sectional shape in the Y direction, and the upper sliding surface 32'is a concave curved surface in the cross-sectional shape in the Y direction. As shown in FIG. 5B, the angles of the base spot 30 and the sole plate 10 can be adjusted in the Y direction.

Further, since the lower sliding surface 22'is a curved surface protruding toward the base spot 30 in the cross-sectional shape in the X direction, and the lower sliding surface 33'is a concave curved surface in the cross-sectional shape in the X direction. As shown in FIG. 5A, the angles of the base plate 30 and the base plate 20 can be adjusted in the X direction.

Therefore, in the movable bearing device 1, when the relative angle between the lower building 101 and the upper building 102 changes, or depending on the assembly accuracy of the movable bearing device 1, the upper sliding surface 12'and the upper side of the base spot 30 The sliding surfaces 12', 22', 32', 33'are surely made without uneven contact between the sliding surface 32'and the lower sliding surface 22'and the lower sliding surface 33' of the base spot 30. The movable bearing device 1 can slide smoothly in contact with the surface.

Further, the upper sliding surface member 12 on the sole plate 10 constituting the sliding surfaces 12', 22', 32', 33', the lower sliding surface member 22 on the base plate 20, and the upper sliding on the base plate 30. Of the surface member 32 and the lower sliding surface member 33, at least a combination of the upper sliding surface member 12 and the upper sliding surface member 32 facing each other, and the lower sliding surface member 33 and the lower sliding surface member 22 Since one of them is made of a fluororesin material (for example, PTFE material), it is possible to suppress an increase in sliding resistance and slide smoothly.

More specifically, since the sliding surfaces 12', 22', 32', 33'are formed in a curved surface, the sliding surfaces 12', 22', are compared with the flat sliding surfaces. The contact pressure acting on 32'and 33'will increase (see the arrows shown in the enlarged view of part a in FIG. 6 (b) and the enlarged view of part b in FIG. 6 (c)).

In general, a fluororesin material (for example, PTFE material) has a coefficient of friction that decreases as the contact pressure increases, so that it acts on the sliding surfaces 12', 22', 32', 33' by forming it into a curved surface. The contact pressure increases compared to the contact pressure when the flat plate-shaped sliding surfaces slide with each other, and the sliding resistance when the sliding surfaces 12', 22', 32', and 33'slide with each other decreases. And can be slid smoothly.

Therefore, as shown in FIG. 6A, even when the sliding distance L is relatively slid in the direction intersecting the X direction and the Y direction (45 degrees in FIG. 6A). , The sliding distances Lx and Ly in the X and Y directions are shorter than the sliding distance L, and the contact acting on the sliding surfaces 12', 22', 32', 33' by forming the curved surface. The pressure increases, the sliding resistance at the time of sliding between the sliding surfaces 12', 22', 32', and 33' decreases, and the sliding surfaces can be smoothly slid.

In the above description, the upper sliding surface 12'and the lower sliding surface 22'are formed by a curved surface having a convex cross section and an arcuate cross section, and the upper sliding surface 32'and the lower sliding surface 33'are formed. Although it is composed of a curved surface with an arcuate cross section, the upper sliding surface 12'and the sliding surface 22'have an arcuate cross section, and the upper sliding surface 32'and the lower sliding surface 32'are formed. The surface 33'may be formed of a curved surface having a convex cross section and an arc shape.

Further, the upper sliding surface 12'and the lower sliding surface 33'are formed of a curved surface having a convex cross-section arc, and the lower sliding surface 22'and the upper sliding surface 32'are formed with a concave cross-section arc. On the contrary, the upper sliding surface 12'and the lower sliding surface 33'are formed of a curved surface having an arcuate cross section, and the lower sliding surface 22'and the upper sliding surface are slid. The surface 32'may be formed of a curved surface having a convex cross section and an arc shape.

Further, if the upper sliding surface 12'and the upper sliding surface 32'and the lower sliding surface 22'and the lower sliding surface 33'are curved surfaces having the same diameter and an arcuate cross section, respectively. The upper sliding surface 12'and the upper sliding surface 32'and the lower sliding surface 22'and the lower sliding surface 33'may be formed of curved surfaces having an arcuate cross section having different diameters.

Further, in the above description, the sliding surfaces 12', 22', 32', and 33'are formed by curved surfaces having an arcuate cross section with strings of the same diameter, but if the curvature does not change in the middle, the cross section is semicircular. It may be composed of a curved surface having an arcuate cross section.

Further, in the above description, the movable bearing device 1 is configured to be slidable in each of the X direction and the Y direction via the base spot 30, but for example, as shown in FIG. 7A, the sole plate 10a The length in the X direction is approximately the same as the length of the base spot 30, and the sole plate 10a is provided with a stopper 13 so that the base spot 30 does not move in the X direction with respect to the sole plate 10a. The movable bearing device 1a may be configured.

The movable bearing device 1a configured in this way constitutes a unidirectional movable bearing device because the base spot 30 can move in the Y direction with respect to the base plate 20. Further, the angle is adjusted in the Y direction by the upper sliding surface 12'of the sole plate 10a and the upper sliding surface 32'of the base plate 30, and the lower sliding surface 22'of the base plate 20 and the lower side of the base spot 30. By adjusting the angle in the X direction with the sliding surface 33', in the movable bearing device 1a, when the relative angle between the lower structure 101 and the upper structure 102 changes, or the assembly accuracy of the movable bearing device 1a The upper sliding surface 12'and the upper sliding surface 32'of the base spot 30, and the lower sliding surface 22'and the lower sliding surface 33' of the base spot 30 do not hit each other. The sliding surfaces 12', 22', 32', and 33'are surely touch each other, and the movable bearing device 1a can slide smoothly.

Of course, although not shown, the movable bearing device 1a is configured such that the length of the base plate 20 in the Y direction is approximately the same as the length of the base plate 30, and the base plate 30 moves in the Y direction with respect to the base plate 20. The base plate 20 may be provided with a stopper so as not to cause a problem. The movable bearing device 1a configured in this way can exert the same effect as the above-mentioned movable bearing device 1a as a unidirectional movable bearing device in which the base spot 30 can move in the X direction with respect to the sole plate 10.

Further, the movable bearing devices 1b and 1c may be configured without providing the base spot 30.
For example, as shown in FIG. 7B, the movable bearing device 1b is composed of a sole plate 10b having substantially the same shape as the base pot 30 in the movable bearing device 1 and a base plate 20 long in the Y direction, and the sole plate 10b is formed. On the bottom surface, the upper sliding surface member 12b having the same shape as the lower sliding surface member 33 is fixed to the mounting portion 11xb in the Y direction, which is the same as the mounting portion 31xb in the base spot 30.
In the movable bearing device 1b configured in this way, the sole plate 10b is configured to be slidable in the Y direction with respect to the base plate 20, and the angle in the X direction can be adjusted.

Alternatively, as shown in FIG. 7C, the movable bearing device 1c is composed of a base plate 20c having substantially the same shape as the base plate 30 in the movable bearing device 1 and a sole plate 10 long in the X direction, and the upper surface of the base plate 20c is formed. In addition, the lower bearing sliding surface member 22c having the same shape as the upper sliding surface member 32 is fixed to the mounting portion 21xc in the X direction, which is the same as the mounting portion 31xa in the base pot 30.
In the movable bearing device 1c configured in this way, the sole plate 10 is configured to be slidable in the X direction with respect to the base plate 20c, and the angle in the Y direction can be adjusted.

As described above, in the correspondence between the configuration of the present invention and the above-described embodiment, the upper building corresponds to the upper building 102.
Similarly below
The lower building corresponds to the lower building 101,
The upper shoe corresponds to the sole plates 10, 10a, 10b,
The lower shoe corresponds to the base plates 20 and 20c,
The movable bearing device corresponds to the movable bearing devices 1, 1a, 1b, 1c.
The bearing member corresponds to the base spot 30,
The upper sill sliding surface corresponds to the upper sill sliding surface 12',
The first direction corresponds to the X direction,
The second direction corresponds to the Y direction,
The upper sliding surface corresponds to the upper sliding surface 32',
The lower sill sliding surface corresponds to the lower sill sliding surface 22',
The lower sliding surface corresponds to the lower sliding surface 33',
The sliding surface members correspond to the upper sliding surface members 12, 12b, the lower sliding surface members 22, 22c, the upper sliding surface member 32, and the lower sliding surface member 33, but are limited to the above embodiments. It's not a thing.

1,1a, 1b, 1c ... Movable bearing device 10, 10a, 10b ... Sole plate 12, 12b ... Upper sill sliding surface member 12'... Upper sill sliding surface 20, 20c ... Base plate 22, 22c ... Lower sill sliding Surface member 22'... Lower sliding surface 30 ... Base spot 32 ... Upper sliding surface member 32' ... Upper sliding surface 33 ... Lower sliding surface member 33' ... Lower sliding surface 101 ... Lower building 102 … Upper building

Claims (2)

A movable bearing device composed of upper and lower stiles arranged on facing portions in an upper building and a lower structure, and sliding surfaces of the upper stile and the facing portion of the lower sill are slid with each other.
A bearing member having a sliding surface and a slidable sliding surface is provided between the upper shoe and the lower shoe.
The upper sill sliding surface, which is the sliding surface of the upper sill, is formed longer in the first direction than the second direction orthogonal to the first direction in which the upper sill sliding surface relatively slides.
The upper sliding surface of the bearing member facing the upper shoe is formed to have a shorter length in the first direction than the upper sliding surface.
One of the upper sliding surface and the upper sliding surface is a curved surface that protrudes toward the other in the cross-sectional shape in the second direction, and the cross-sectional shape in the second direction is along the first direction. Have the same shape
The other of the upper sliding surface and the upper sliding surface is a concave curved surface in the cross-sectional shape in the second direction, and the cross-sectional shape in the second direction is the same along the first direction. Yes ,
The lower shoe sliding surface, which is the sliding surface of the lower shoe, is formed longer in the second direction than the first direction.
The lower sliding surface of the bearing member facing the lower sill is formed to have a shorter length in the second direction than the lower sill sliding surface.
One of the lower sliding surface and the lower sliding surface is a curved surface that protrudes toward the other in the cross-sectional shape of the first direction, and the cross-sectional shape of the first direction is in the second direction. It has the same shape along
The other of the lower sliding surface and the lower sliding surface is a concave curved surface in the cross-sectional shape of the first direction, and the cross-sectional shape of the first direction is the same along the second direction. And
The support member slides in the first direction with respect to the upper sill and slides in the second direction with respect to the lower sill, and the upper sill and the lower sill are formed by the support member. A movable bearing device that is freely slidable in a surface direction composed of the first direction and the second direction. The movable bearing device according to claim 1, wherein at least one of the sliding surface members constituting the opposing sliding surfaces is made of a fluororesin material.

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