JP2555863Y2 - Building expansion joint device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an expansion joint device for a building configured to close a gap between respective frames such as adjacent building structures at intervals with a cover plate.

FIG. 7 is a vertical sectional view of a typical prior art. Concrete skeletons 1 and 2 as floors of building structures and the like are separated by a gap 3 having a distance L, and the skeletons 1 and 2 approach or separate from each other due to an earthquake or land subsidence. An expansion joint device 4 is provided to keep the gap 3 closed even when displaced in the direction. The expansion joint device 4 includes edge members 7 and 8 fixed to the frame members 1 and 2 with anchor bolts 5 and 6, a flat cover plate 9 mounted between the edge members 7 and 8, 9, that is, a water stop plate 10 made of a flexible material such as rubber placed below the gap 3 in FIG. 7, and in the width direction of the cover plate 9 (the left and right sides in FIG. 7). Gaskets 11 and 12 are provided on both sides in the (direction).

In such prior art, when each of the skeletons 1 and 2 is displaced in a direction approaching each other due to an earthquake or the like, the gasket made of a flexible and elastic material such as rubber is used.
11 and 12 are pressed by the cover plate 9. Frame 1,2
Is a floor of a high-rise building, etc., each of the frames 1, 2 is greatly displaced by an earthquake or the like, and is separated at a relatively large interval, for example, L = about 0.5 to 1.0 m. Therefore, when the relative displacement amount of each of the frames 1 and 2 is large, the displacement amount of the cover plate 9 increases with the displacement, and the gaskets 11 and 12 pressed by the cover plate 9 are elastically deformed. In such a case, the displacement of the cover plate 9 may not be able to be absorbed. In such a case, the gaskets 11 and 12 may be damaged by the pressing force of the cover plate 9, and in such a prior art, each of the frames 1 and 2 is displaced and the interval L is large and sharply. When it changes, the gap 3 cannot be kept closed by the cover plate 9.

Problems to be solved by the present invention Therefore, the purpose of the present invention is to allow the cover plate to be displaced even when the cover plate is greatly displaced due to the displacement of each frame, and to always close the gap between each frame. An object of the present invention is to provide an expansion joint device for a building that can be maintained.

Means for Solving the Problems The present invention provides an edge material provided on a pair of adjacent skeletons at intervals, a cover plate disposed over the edge material and closing the interval, and a side portion of the cover plate. And a swing member slidably provided in the building expansion joint device, wherein the edge member is provided with an inclined surface for guiding the free end of the swing member toward the surface of the frame, A guide surface corresponding to the inclined surface of the edge material is provided at the free end of the member,
The cover plate is provided with a guide piece for guiding the cover plate toward the outside. When the pair of frames are displaced in a direction approaching each other, the cover plate swings due to the action of the inclined surface of the edge material and the guide surface of the swing member. When the free end of the member is guided on the surface of the skeleton, and the pair of skeletons are further displaced in the approaching direction, the cover plate is guided outward by the action of the guide pieces,
Thereby, an abutment between the skeleton and the cover plate is avoided, thereby providing an expansion joint device for a building.

According to the present invention, a pair of frame members adjacent to each other at intervals are provided with edge members, and a cover plate is arranged between the edge members so as to close the interval. A swing member is swingably provided on the side of the cover plate, an inclined surface is provided on the edge member, and a guide surface is provided on the swing member. , The free end of the swinging member is guided to the surface of the skeleton by the action of the inclined surface and the guide surface. Therefore, the swinging member moves to a position avoiding the skeleton, and the oscillating member is not damaged by being sandwiched between the skeleton and the cover plate. Further, a guide piece is provided on the inner surface of the cover plate to guide the guide piece to the outside. To guide the cover plate to the outside. Therefore, the cover plate moves to the outside, abutment between the skeleton and the cover plate is avoided, and the cover plate is not damaged.

Embodiment FIG. 1 is a horizontal sectional view of an embodiment of the present invention, and FIG.
The figure is an enlarged sectional view of section II of FIG. For example, concrete frames 20a and 20b such as walls of high-rise buildings
Are separated from each other by a gap 22 having an interval L between the inner surfaces 21a and 21b facing each other. The gap L between the gaps 22 has a relatively large distance of, for example, about 0.5 to 1.0 m. Surfaces 24a and 24b facing the outside 23 of each of the frames 20a and 20b have step surfaces 25a and 25, respectively.
Mounting surfaces 26a, 26b recessed on the inside 25 side are formed through b, and aluminum or stainless steel rims 27a, 27b are fixed to each mounting surface 26a, 26b by anchor bolts 28a, 28b. . These edge members 27a and 27b extend in the vertical direction, that is, in the direction perpendicular to the plane of the paper of FIG.

A flat cover plate 29 is arranged on each edge member 27a, 27b so as to close the gap 22. This cover plate
29 is made of, for example, aluminum. Cover plate
Metal fitting members 31a, 31b are fixed to the left and right side portions 30a, 30b in FIG. 1 by rivets 32a, 32b.
Each of the fitting members 31a and 31b extends in a direction perpendicular to the plane of FIG. 1 and FIG. 2, and fitting holes 33a and 33b are formed along the longitudinal direction. In the fitting holes 33a, 33b, swing members 34a, 34b made of a material such as a flexible metal profile are provided.
The base ends 35a and 35b are fitted. Each of the base ends 35a and 35b is formed in a substantially cylindrical shape. When attaching the swing members 34a, 34b to the fitting members 31a, 31b, the base ends 35a, 35b are inserted into the fitting holes 33a, 33b along the longitudinal direction. Such swing members 34a and 34b also extend along the longitudinal direction of the fitting members 31a and 31b.

The fitting member 31 (subscripts a and b are omitted when collectively referred to) includes a base 36 through which the rivet 32 is inserted, and a base 36.
36, receiving portions 37 and 38 that form the fitting hole 33. The free ends of the receiving portions 37 and 38 are spaced apart from each other with an interval T1, and the interval T1 is selected to be smaller than the diameter D of the base end 35 of the rocking member 34, whereby the fitting hole is formed. This prevents the base end 35 from being pulled out from the base 33. Further, the interval T1 is selected to be larger than the throat thickness T2 near the base 39 of the base end portion 35, whereby the rocking member 34 is within the range of the interval T1 with the axis of the base end portion 35 as the center of rotation. Arrow
Angular displacement is possible in C1 and C2 directions.

The free end portion 40 of the swinging member 34 is formed by bending toward the base end portion 35 side, and the free end portion 40 is on both sides with respect to the gap 22 from the inside 25 to the outside 23, that is, FIG. A guide surface 41 inclined outward in the left-right direction is formed. The guide surface 41 is in contact with the inclined surface 43 of the protrusion 42 formed at each one end of the edge member 27. The inclined surface 43 is inclined in a direction away from the gap 22 to both sides as going from the inside 25 to the outside 23 side. As a result, when the cover plate 29 is displaced rightward or leftward in FIG. 1 with respect to one of the frames 20a and 20b, the swing member 34 is pushed upward along the inclined surface 43. On both sides of the projection 42, a finishing material 44 such as cement mortar applied to the surface 24 of the frame 20 is provided.

A guide piece 47 is provided on the cover plate 29 at a distance L1 from the end of the edge material 27 on the gap 22 side. This guide piece
47 is a stainless plate or the like, for example, and has a guide surface 48 inclined in the same direction as the guide surface 41 of the swing member 34. The distance L1 is selected such that the fitting member 31 is smaller than the distance L2 from the rim member 27 to the protrusion 42, and when the cover plate 29 is displaced in the left-right direction, the fitting member 31 By the time the 31 abuts, the guide surface 48 of the guide piece 47 is
Of the cover plate 29 so that the cover plate 29 is
It is pushed up to the 23 side (upward in FIG. 1). Thereby, when each of the frames 20a and 20b is displaced in a direction approaching each other, the swing member 34 rides on the surface 24, and the cover plate 29 of the frame 20a and 20b on the side on which the cover plate 29 moves is moved. Displacement of distance L2 or more with respect to the skeleton can be performed smoothly. Thereby, the displacement of each of the frames 20a and 20b is allowed, and the gap 22 can be kept closed.

FIG. 3 is an exploded perspective view showing a configuration for holding the cover plate 29 on the edge member 27. FIG. The cover plate 29
The bolt 51 is located at the center in the width direction (left-right direction in FIG. 1).
Is formed, and a straight cylindrical sleeve 53 is fixed to the surface of the inside 22 where the insertion hole 52 is formed. A compression coil spring 54 is housed in the sleeve 53, and the shaft of the bolt 51 is inserted therethrough. The shaft portion of the bolt 51 thus inserted into the compression coil spring 54 is inserted through the contact piece 54a with which the other end of the spring 54 contacts, and the insertion hole 56 of the connecting rod 55 disposed between the edge members 27a and 27b. The nut 59 is screwed through the insertion hole 58 of the compression coil spring 57 and the spring receiving piece 57.

The connecting rod 55 has a substantially right-angled cross section formed in an inverted U-shape. The portions 61a and 61b are erected. With such a configuration, the cover plate 29 and the connecting rod 55 are urged in a direction approaching each other, and the connecting rod 55 has the fitting protrusions 61a, 61b formed in the fitting grooves 60a of the edge members 27a, 27b. ,
It is supported on each edge material 27a, 27b in a state of being fitted into 60b.

With the above-described configuration, the cover plate 29 is attached between the respective frames 20a and 20b, and the respective frames 20a and 20b are rapidly displaced in a direction in which the frames 20a and 20b approach each other due to, for example, an earthquake, that is, in a direction in which the distance L is reduced. In FIG. 4, for example, a state in which the cover plate 29 has moved to one of the skeletons 20a is shown in FIG. First, each frame 20a, 20b
When the cover plate 29 starts to move to the left in FIG. 1 with the displacement of, the guide surface 41a of the swing member 34a is guided along the inclined surface 43a of the edge member 27a, whereby the swing member 34a When the base plate 35a is angularly displaced about the axis of rotation in the direction of arrow C1 about the axis of rotation and the cover plate 29 is further displaced leftward in FIG. 1, the free end 40a of the rocking member 34a becomes the surface 45 of the finishing member 44a.
Ride up. Then, when the cover plate 29 is further displaced to the left, the guide surface 4a of the guide piece 47a is attached to the end 49a of the edge material 27a.
8a comes into contact, the cover plate 29 is pushed up toward the outside 23 while increasing the distance L3 with the connecting rod 55, and when the cover plate 29 is further displaced to the left, the lower end 50a of the guide piece 47a becomes the edge material 27a. Is mounted on the surface 62a on the outside 23 side.

In this way, the cover plate 29 is guided by the guide piece 47a.
Is guided to the outside 23 side when the displacement becomes more than the distance L1,
Thus, even if the cover plate 29 is further displaced toward the skeleton 20a, there is no risk that the fitting member 31a will be brought into contact with the projection 42a of the edge material 27a and locked, and the cover plate 29 will be smoothly You can be guided above. Therefore, even when the relative displacement of each frame 20a, 20b is large,
There is no risk of the cover plate 29 being damaged,
22 can be kept closed.

As another embodiment of the present invention, as shown in FIG. 5, a recess 64 may be formed in the swinging member 63, and the finishing material 65 may be filled in the recess 64. By doing so, the finishing material applied to the surface 24 of the frame 20
44, the finishing member 66 applied to the surface of the cover plate 29, and the finishing material 65 applied to the swinging member 63 can be made substantially flat, so that there is no apparent discomfort, Can be improved.

In the above-described embodiment, the frames 20a and 20b are the walls of the building, but the present invention can be suitably applied to the floor and the like.

FIG. 6 is a horizontal sectional view of still another embodiment of the present invention. A pair of skeletons 70a, 70 with a gap 22 having an interval L
b is placed. The surface 71 facing the outside 23 of one skeleton 70b is substantially perpendicular to the inner surface 72 facing the gap 22 of the other skeleton 70a, and the edge members 73a, 73b are fixed to the skeletons 70a, 70b. One end of a torsion spring 74 is fixed to the edge member 73a, and the other end of the torsion spring 74 is fixed to the cover plate 75. Packings 76, 77 made of a material such as rubber or synthetic resin are fitted to the cover plate 75, and the cover plates 75 are sandwiched by the packings 76, 77 from both sides in the thickness direction. This cover plate 75
Is biased in the direction of arrow F1 by the spring force of the torsion spring 74. A mounting member 78 abuts on the cover plate 75, and one end of a connecting rod 79 is fixed to the mounting member 78 by welding or the like. The connecting rod 79 and the cover plate 75 are connected at an interval by a bolt 80 and a nut 81, and a compression coil spring 82 into which the shaft of the bolt 80 is inserted is interposed within this interval. Due to the spring force of the compression coil spring 82, the cover plate 75 and the connecting rod 79 are spring-biased in directions away from each other. A guide piece 83 is fixed to the cover plate 75 near the frame 70b. The guide piece 83 has a guide surface 83a that is inclined in the same manner as the guide piece 47 of the above-described embodiment. When the cover plate 75 is displaced rightward in FIG. The cover plate 75 is lifted up in contact with the portion 84.

Further, on the side of the cover plate 75 on the side of the skeleton 70b, a fitting member 85 and a swing member 86 that is swingably fitted to the fitting member 85 are provided by a configuration similar to that of the above-described embodiment. . A guide surface 87 is formed at the free end of the swing member 86, and is guided along an inclined surface 89 formed on a projection 88 of the edge member 74b.

6, the guide surface 87 of the swing member 86 is guided along the inclined surface 89 even if the respective frames 70a and 70b are suddenly displaced in a direction approaching each other. Angular displacement upward. Furthermore, the cover plate 75 is the frame 70
When displaced to the b side, the guide surface 83a of the guide piece 83 is guided in contact with the end portion 84, and the cover plate 75 is lifted upward. In this way, the swing member 86 is provided only on one side of the cover plate 75, and the cover plate 75 is smoothly guided to the surface 71 of the frame 70b when each of the frames 70a, 70b is displaced in a direction approaching each other. Then, the displacement can be allowed.

According to the present invention, a swinging member is swingably provided on the side of the cover plate, an inclined surface is provided on the edge member, and a guide surface is provided on the free end of the swinging member. Therefore, when the pair of skeletons are displaced in a direction approaching each other, the free end of the swinging member is guided to the surface of the skeleton by the action of the inclined surface and the guide surface. Therefore, the swinging member moves to a position avoiding the skeleton, and the oscillating member is not damaged by being sandwiched between the skeleton and the cover plate.

Further, since a guide piece for guiding the cover plate to the outside is provided on the inner surface of the cover plate, when the pair of skeletons is further displaced in a direction approaching each other, the guide piece is, for example, one of the edge materials. Acting on the cover plate to guide the cover plate to the outside. Therefore, the cover plate moves to the outside, abutment between the skeleton and the cover plate is avoided, and the cover plate is not damaged.

[Brief description of the drawings]

FIG. 1 is a horizontal sectional view of one embodiment of the present invention, and FIG.
FIG. 3 is an exploded perspective view showing a structure for holding the cover plate 29 and the rim member 27, and FIG. 4 is an exploded perspective view showing a state in which the cover plate 29 is displaced. 5 is an enlarged sectional view of another embodiment of the present invention, FIG. 6 is a horizontal sectional view of still another embodiment of the present invention, and FIG. 7 is a typical prior art horizontal cross section. FIG. 20a, 20b; 70a, 70b …… Framework, 22 …… Gap, 27a, 27b, 73a, 7
3b… Edge material, 34, 86… Swinging member, 55, 79… Connecting rod, 2
9,75 …… Cover plate

Claims (1)

(57) [Scope of request for utility model registration] An edge member provided on a pair of adjacent frame members at an interval; and an edge member disposed between the edge members;
In a building expansion joint device comprising: a cover plate that closes the gap; and a swing member that is swingably provided on a side portion of the cover plate, the edge member has a free end portion of the swing member. Is provided at the free end of the swinging member, and a guide surface corresponding to the inclined surface of the rim is provided at the free end of the swinging member. A guide piece is provided for guiding outward, and when the pair of skeletons are displaced in a direction approaching each other, the swing member is actuated by the action of the inclined surface of the edge member and the guide surface of the swing member. The free end is guided on the surface of the skeleton, and when the pair of skeletons are further displaced in the approaching direction, the cover plate is guided in the outward direction by the action of the guide pieces, whereby the skeleton and the The cover An expansion joint device for a building, wherein contact with a rate is avoided.