JP3718289B2 - Expansion joint device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an expansion joint device used for preventing rainwater or the like from entering the gap between two adjacent buildings from the outside.
[0002]
[Prior art]
As an expansion joint device provided between a pair of adjacent housings, for example, there is one disclosed in Japanese Utility Model Publication No. 6-65504. The expansion joint device includes a cover body made up of a rigid base cover and a cover plate attached to the rigid base cover. One end of the cover body is supported by a holding receiving frame provided on one of the casings, and is connected to the holding receiving frame. The other end of the cover body is supported by a sliding receiving frame provided on the other drive body so as to be movable in the front-rear and left-right directions.
[0003]
[Problems to be solved by the invention]
However, the expansion joint device has the following problems to be solved. Since the cover body is mounted on the rigid base lid, the cover body moves in the front-rear and left-right directions together with the rigid base lid. Therefore, on the other housing side supporting the other end portion of the cover body, a space for allowing movement of the other end portion is required, and as the allowable moving amount increases, the necessary space increases. Become. Therefore, the amount of movement of the cover body is limited due to the space, and it cannot sufficiently cope with the large displacement of the housing. Moreover, it cannot apply to the joint of the joint between the channel | path of a pair of housings.
[0004]
An object of the present invention is to provide an expansion joint device in which a pair of housings can sufficiently cope with displacement in the front-rear direction and the left-right direction.
[0005]
[Means for Solving the Problems]
The present invention is an expansion joint device disposed between a pair of adjacent housings, a joint body extending between the pair of housings, a movable cover covering the joint body, and the movable cover A decorative cover that covers the joint body, wherein one end of the joint body is attached to the one housing, and the other end is perpendicular to the left-right direction and the left-right direction in which the pair of housings approach and separate from each other. The movable cover is mounted on the other casing so as to be movable in the left-right direction and is moved relative to the joint body in the front-rear direction. The expansion joint device is connected freely, and the decorative cover is attached to the one casing and overlapped with one end of the movable cover.
According to the present invention, one end of the joint body is attached to one housing, and the other end of the joint body is supported by the other housing so as to be movable in the left-right direction and the front-rear direction perpendicular to the left-right direction. Therefore, relative movement in the left-right direction and the front-rear direction of the joint body with respect to the other housing is allowed. In addition, since the movable cover is attached to the other housing so as to be movable in the left-right direction, and is connected to the joint body so as to be relatively movable in the front-rear direction, the movable cover can be moved in the left-right direction relative to the other housing. In addition, the movable cover is allowed to move in the front-rear direction with respect to the joint body. Therefore, even if a pair of housings are displaced in the left-right direction and the front-rear direction, it can sufficiently cope with the joint body, the movable cover, and the decorative cover without being damaged or deformed. Further, since the movable cover and the decorative cover cover the joint body, the joint body is not exposed to the inside.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
1 to 3, the illustrated expansion joint device 2 includes a joint body 4, a movable cover 6 that is relatively movable with respect to the joint body 4, and the movable cover 6 and the joint body 4. A covering cover 8 is provided. This expansion joint device 2 is used when, for example, a new building 12 (which constitutes the other housing) is built adjacent to an existing building 10 (which constitutes one housing), and the existing building 10 and the new building 12 are constructed. Are connected to each other in a stretchable manner, and a person can move between the buildings 10 and 12 via the expansion joint device 2.
[0007]
1 to 3 and FIG. 4 to FIG. 6, the illustrated joint body 4 includes a substantially rectangular body plate 14. An end wall 16 is provided at the left end of the main body plate 14 in FIG. Further, side walls 18 are provided on both side portions of the main body plate 14 (side portions in the direction perpendicular to the paper surface in FIG. 1, side portions in the left-right direction in FIGS. 4 to 6) (in FIGS. 4 to 6). Only one is shown). Three reinforcing members 20 are disposed on the inner surface of the main body plate 14 at intervals in the lateral direction (the direction perpendicular to the paper surface in FIG. 1, the vertical direction in FIG. 3, the horizontal direction in FIGS. 4 to 6). ing. The reinforcing member 20 has a substantially inverted hat shape in cross section, and flanges 21 provided at both ends thereof are fixed to the inner surface of the main body plate 14 by means such as welding. Each reinforcing member 20 extends from one end of the joint body 4 (right end in FIG. 1) to the other end (left end in FIG. 1).
[0008]
One end of the joint body 4 is attached to, for example, one building 10 (for example, an existing building). In the embodiment, an anchor bolt 22 is embedded in a floor surface 31 (which may be a floor surface of an arbitrary floor of the building 10) that defines the lower surface of the passage opening 30 of one building 10. And the metal plate 24 is being fixed to the surface of the full width of the passage width of the building 10 with the nut 23 (FIG. 1). A plurality of fixing members 26 corresponding to the reinforcing member 20 of the joint body 4 are fixed to the metal plate 24 by means such as welding. Each fixing member 26 is substantially L-shaped, and its protruding portion 28 is connected to the reinforcing member 20 of the joint body 4 via connecting means (not shown) such as bolts and nuts (FIG. 6). Therefore, one end of the joint body 4 is fixed to one building 10. Instead of the reinforcing member 20, the side wall 18 of the joint body 14 may be connected to the fixing member 26, or may be fixed by means such as welding instead of the bolt and the nut.
[0009]
As shown in FIG. 3, the joint body 4 has a central portion in the width direction (direction perpendicular to the paper surface in FIG. 3) of passage openings 30 and 32 formed in a pair of adjacent buildings 10 and 12. The width can be set to about 1/3 to 1/2 of the width of the passage openings 30 and 32. The other end of the joint body 4 extends toward the passage opening 32 of the other building 12 and is placed on the floor surface 33 of the passage opening 32. Therefore, the other end of the joint body 4 is movable relative to the other building 12 in the horizontal direction (in the horizontal direction in FIGS. 1 and 2) that is close to and away from the adjacent buildings 10 and 12. In addition, it is relatively movable in the front-rear direction perpendicular to the left-right direction, that is, in the direction perpendicular to the paper surface in FIG.
[0010]
In order to make the relative movement of the other end of the joint body 4 relative to the floor surface 33 of the other building 12 smooth, sliding means is disposed on the inner surface of the body plate 14. In the embodiment, the sliding means includes a ball-type caster 36, and three casters 36 are provided at intervals in the width direction of the main body plate 14 corresponding to the reinforcing member 20. The number of casters 36 can be increased or decreased according to the load acting on the main body plate 14. Each caster 36 has the same configuration, and includes a ball 38 that is rotatable in an arbitrary direction and a main body portion 40 that rotatably receives the ball 38, and the main body portion 40 is attached to the inner surface of the main body plate 14 by a mounting screw 41. It is fixed to. In place of the ball-type caster 36, another form of caster that can be angularly displaced in any direction can be used. Further, instead of the caster 36, a slippery synthetic resin sheet material such as Teflon or vinyl may be interposed between the floor surface 33 of the other building 12 and the joint body 4.
[0011]
The movable cover 6 is attached to the joint body 4 so as to be movable in the front-rear direction (a direction perpendicular to the paper surface in FIG. 1). The movable cover 6 has a plate-like movable plate 42, and the movable plate 42 covers most of the joint body 4 except for one end thereof. One end (the left end in FIGS. 1 and 3) of the movable plate 42 is inclined linearly in the direction approaching the floor 33 toward the outside, and the end substantially contacts the floor 33. This eliminates the occurrence of a step between the movable plate 42 and the floor surface 33. Side walls 44 are provided on both sides of the movable plate 42 (side portions in the vertical direction in FIG. 3) (only one of them is shown in FIGS. 4 to 6). Between the pair of side walls 44 of the movable cover 6, a pair of connecting rods 46, 48 are fixed at a distance in the left-right direction by means such as welding, and the connecting rods 46, 48 are attached to one side wall 44. It is fixed and is fixed to the other side wall 44 through the side wall 18 and the reinforcing member 20 of the joint body 4 from one end. Therefore, the movable cover 6 has a side wall 44 on one side substantially contacting the side wall 18 on one side of the joint body 4, that is, from the position shown in FIG. It can move relative to the joint body 4 between a position substantially in contact with the side wall 18, that is, a position shown in FIG. 7B, and this relative movement is performed along the connecting rods 46 and 48. Is called.
[0012]
In order to make the relative movement of the movable cover 6 relative to the joint body 4 smooth, a sliding means is disposed inside the joint body 4. In the embodiment, as described above, the sliding means is configured by a ball-type caster 50, and the caster 50 is spaced apart in the width direction at a substantially central portion in the longitudinal direction of the main body plate 14 corresponding to the reinforcing member 20. Three are provided. The number of casters 50 can be increased or decreased according to the load acting on the movable cover 6. Each caster 50 has substantially the same configuration as the caster 36, and includes a rotatable ball 52 and a main body portion 54 that receives the ball 52. The main body portion 54 is fixed to the reinforcing member 20 by a mounting screw 56. Yes. A part of the ball 52 protrudes somewhat upward through a hole (not shown) formed in the main body plate 14, and this protrusion supports the inner surface of the movable plate 42. Instead of the ball-type caster 50, other forms of casters that can be displaced in an arbitrary direction can be used. Further, instead of the caster 50, a slippery synthetic resin sheet material such as Teflon or vinyl may be interposed between the joint body 4 and the movable cover 6.
[0013]
As understood from FIG. 3, the movable cover 6 has a size corresponding to the width of the passage opening 32 defined in the other building 12, and one end portion of the movable cover 6 is the passage opening 32 of the other building 12. Mounted on the floor 33. Therefore, the other end portion of the movable cover 6 can move in the left-right direction with respect to the other building 12 as understood from FIG. 8, but is substantially in the front-rear direction (vertical direction in FIG. 3). Can't move up.
[0014]
The decorative cover 8 is fixed to one building 10 and covers one end portion of the joint body 4 (a portion exposed from the movable cover 6). In the embodiment, the decorative cover 8 has a size corresponding to the width of the passage opening 30 defined in the building 10 and includes an upper plate 58 and a lower plate 60 fixed to each other by means such as welding. Has been. The base of the lower plate 60 is fixed to the floor surface 31 of the building 10 by anchor bolts 62 and nuts 63. The other end portion of the lower plate 60 extends upward from the base portion, and then extends substantially horizontally to the other end portion of the movable cover 6, and the tip portion of the lower plate 60 and the other end portion of the movable cover 6 are partly Polymerized. The upper plate 58 is provided so as to overlap with the lower plate 60, and its base portion extends in a straight line in the direction approaching the floor surface 31 of the building 10 toward the right in FIG. The surface 31 is substantially in contact with the surface 31, thereby eliminating the occurrence of a step between the decorative cover 8 and the floor surface 31 of the building 10. The tip of the upper plate 58 extends to the other end of the movable cover 6 similarly to the lower plate 60 and covers a part of the upper surface of the movable cover 6. As can be understood from FIGS. 1 and 3, the decorative cover 8 covers a part of the movable cover 6 and the joint body 4, and in the embodiment, constitutes a floor surface of the expansion joint device. It can be conveniently applied as a flooring one.
[0015]
In the embodiment, since the decorative cover 8 is attached to one building 10 and the movable cover 6 is attached to the other building 12, it is understood from FIG. 7 when both the buildings 10, 12 are displaced in the front-rear direction. As shown in the figure, the decorative cover 8 and the movable cover 6 move relatively in contact with each other. Therefore, in order to make the relative movement between the movable cover 6 and the decorative cover 8 smooth, a synthetic resin sheet material such as Teflon or vinyl may be interposed between the movable cover 6 and the decorative cover 8. .
[0016]
Referring again to FIG. 1, the expansion joint device 2 includes a water stop plate 62 and a fireproof zone 64 mounted between the buildings 10 and 12. The water stop plate 62 is disposed on the lower side of the joint body 4 in FIG. 1, and one end portion thereof is fixed to a mounting bracket 66 fixed to the building 10 by means such as a bolt, and the other end portion is fixed to the other building 12. The fixing bracket 68 is fixed to the mounting bracket 68 by means such as a bolt. Further, the refractory belt 64 is disposed on the lower side of the water stop plate 62 in FIG. 1, and one end portion thereof is fixed to the mounting bracket 66 via the reinforcing plate 70, and the other end portion thereof is interposed via the reinforcing plate 72. It is attached to the other mounting bracket 68. In the embodiment, the reinforcing plate 72 is provided with a locking claw 74, and the other mounting bracket 68 is provided with a locking portion 76. By locking the locking claw 74 and the locking portion 76, the reinforcing plate 72 is provided. Is attached to the mounting bracket 68.
[0017]
Next, the function and effect of the expansion joint device 2 will be described. When the adjacent buildings 10 and 12 are displaced in the left-right direction (the direction indicated by the arrow 82 in FIGS. 2 and 8) due to an earthquake or the like, one end of the joint body 4 is fixed to the building 10. As shown, the other end of the joint body 4 moves relative to the other building 12 in the direction indicated by the arrow 82. With this movement, the other end of the movable cover 6 also moves to the other building 12. On the other hand, it moves relatively in the direction indicated by the arrow 82. Since the movement of the joint body 4 with respect to the floor surface 33 of the other building 12 is performed via the casters 36 (FIGS. 1 and 4), the movement is smooth. Accordingly, the lateral displacement between the pair of buildings 10 and 12 is absorbed by the relative movement between the building 12 and the other end of the joint body 4 and one end of the movable cover 6, and the joint body 4, the movable cover 6 and the like. Will not be damaged. At this time, the decorative cover 8 does not move relative to the movable cover 6.
[0018]
The joint main body 4, the movable cover 6 and the decorative cover 8 are normally in the positions shown in FIG. Therefore, in the embodiment, when the buildings 10 and 12 move away from each other, the position shown in FIG. 8A from the position shown in FIG. 3, that is, one end of the joint body 4 is the floor surface 33 of the other building 12. 3 is allowed to move to the position immediately before it deviates from the position, and when the buildings 10 and 12 move in the approaching direction, the positions shown in FIG. Movement to a position immediately before contact is allowed.
[0019]
On the other hand, when the adjacent buildings 10 and 12 are displaced in the front-rear direction (the direction indicated by the arrow 84 in FIGS. 2 and 7) due to an earthquake or the like, the joint body 4 and the decorative cover 8 are attached to the one building 10 and the movable cover 6 is attached. Is attached to the other building 12, the movable cover 6 moves relative to the joint body 4 and the decorative cover 8 in the direction indicated by the arrow 84 as shown in FIGS. 3 and 7. Since the movable cover 6 is moved with respect to the joint body 4 via the casters 50 (FIGS. 1 and 6), the movement is smooth. Therefore, the displacement in the front-rear direction between the pair of buildings 10 and 12 is absorbed by the relative movement of the joint body 4, the decorative cover 8, and the movable cover 6, and the joint body 4 and the movable cover are also displaced in this direction. 6 and the decorative cover 8 are not damaged.
[0020]
As described above, the joint body 4, the movable cover 6, and the decorative cover 8 are normally in the positions shown in FIG. Therefore, in the embodiment, when the building 10 moves upward in FIG. 3 with respect to the other building 12, the position shown in FIG. 7A from the position in FIG. 3, that is, one side wall 44 of the movable cover 6. Movement to the position immediately before the side wall 18 (the lower side wall in FIGS. 3 and 7) abuts on one side wall 18 (the lower side wall in FIGS. 3 and 7) of the joint body 4 is allowed, and the building When 10 moves downward in FIG. 3 with respect to the other building 12, the position shown in FIG. 7B from the position in FIG. 3, that is, the other side wall 44 of the movable cover 6 (upper side in FIGS. 3 and 7). Is allowed to move to a position immediately before the other side wall 18 of the joint body 4 abuts against the other side wall 18 (the upper side wall in FIGS. 3 and 7).
[0021]
As described above, the expansion joint device 2 absorbs the horizontal displacement of the pair of buildings 10, 12, that is, the lateral displacement indicated by the arrow 82 and the longitudinal displacement indicated by the arrow 84 as desired. be able to. Even if the buildings 10 and 12 are displaced, the movable cover 6 and the decorative cover 8 cover the joint body 4, so that the joint body 4 is not exposed in the passage between the adjacent buildings 10 and 12. In order to sufficiently absorb the vertical displacement of the pair of buildings 10 and 12, for example, one end portion of the joint body 4 and the base portion of the decorative cover 8 are swingably attached to one building 10. it can.
[0022]
In the embodiment, the caster 36 is provided only at the other end portion of the joint body 4. However, in order to allow movement of one end portion of the joint body 4 with respect to the building 10, a caster may also be provided at this one end portion. .
[0023]
【The invention's effect】
According to the present invention, one end of the joint body is attached to one housing, and the other end of the joint body is supported by the other housing so as to be movable in the left-right direction and the front-rear direction perpendicular to the left-right direction. Therefore, relative movement in the left-right direction and the front-rear direction of the joint body with respect to the other housing is allowed. In addition, since the movable cover is attached to the other housing so as to be movable in the left-right direction, and is connected to the joint body so as to be relatively movable in the front-rear direction, the movable cover can be moved in the left-right direction relative to the other housing. In addition, the movable cover is allowed to move in the front-rear direction with respect to the joint body. Accordingly, even if the pair of housings are displaced in the left-right direction and the front-rear direction, the expansion joint device can sufficiently absorb the displacement in these directions, and the joint body, the movable cover, and the decorative cover are not damaged or deformed. . Further, since the decorative cover covers the movable cover and the joint body, the movable cover and the joint body are not exposed to the floor surface.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of an expansion joint device according to the present invention.
FIG. 2 is a simplified plan view schematically showing a state where the expansion joint device of FIG. 1 is used between a pair of buildings.
3 is a plan view showing the expansion joint device of FIG. 1. FIG.
4 is a partial cross-sectional view taken along line IV-IV in FIG.
FIG. 5 is a partial cross-sectional view taken along line VV in FIG.
6 is a partial cross-sectional view taken along the line VI-VI in FIG. 3;
FIG. 7 is a simplified plan cross-sectional view for explaining the movement of the expansion joint device when a pair of buildings move relative to each other in the front-rear direction.
FIG. 8 is a simplified plan cross-sectional view for explaining the movement of the expansion joint device when a pair of buildings move relative to each other in the left-right direction.
[Explanation of symbols]
2 Expansion joint device 4 Joint body 6 Movable cover 8 Cosmetic cover 10, 12 Building (frame)
30, 32 Passage opening 31, 33 Passage opening floor 36, 50 Ball caster 48 Connecting rod

Claims (1)

An expansion joint device disposed between a pair of adjacent housings, a joint body extending between the pair of housings, a movable cover covering the joint body, the movable cover, and the joint body, And one end of the joint body is attached to the one casing, and the other end is in the left-right direction in which the pair of casings approach and separate from each other and in the front-rear direction perpendicular to the left-right direction. The movable cover is movably supported by the other casing, and the movable cover is attached to the other casing so as to be movable in the left-right direction, and is connected to the joint body so as to be relatively movable in the front-rear direction. The expansion joint device is characterized in that the decorative cover is attached to the one casing and is superposed on one end of the movable cover.

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