JPH0633052Y2 - Expansion joint for large gaps - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an expansion joint for large gaps that covers the gaps of the skeleton that appears on the wall surface of a building.

[Prior Art] Since a structure is constantly distorted due to expansion and contraction due to temperature changes, unequal subsidence, and earthquakes, etc., a gap structure is configured as a means for preventing the structure from being destroyed due to the distortion. Since this gap also appears on the wall surface, an expansion joint is used as a structure for covering the gap so that it can be expanded and expanded and the level difference can be absorbed during use. As an expansion joint of this type, as shown in FIG. 4, the frame bases 50 and 50 are fixedly mounted on the wall surface with the gap G between the buildings interposed therebetween.
The cover plate 51 hung on the frame bases 50, 50 is attached to the frame base 5
Generally, a structure in which a widthwise slidable member is fixedly mounted via a suspending member 52 that is stretchably installed between 0 and 50 is generally used.

[Problems to be Solved by the Invention] However, when the strain absorbing gap is enlarged with the increase in the size of the building in recent years, in the above-described conventional configuration, a coating that requires about twice the width when the gap G is increased. Since the plate 51 is provided on the wall surface, the front structure of the expansion joint has a problem of dividing the design of the building. Further, as the gap G becomes larger, the strain of the building becomes larger and the allowable degree of freedom required for the expansion joint becomes larger, and at the same time, the strength against wind pressure and the like is required.

The present invention has been made in view of the above problem, and has a new structure having an allowable degree of freedom capable of coping with a large gap and a sufficient strength against wind pressure, etc. without the front structure becoming wider than the gap width. It is an object of the present invention to provide an expansion joint for large gaps.

[Means for Solving the Problems] The expansion joint for large gaps of the present invention is an expansion joint to be installed in a strain absorbing gap appearing in a wall of a building, and the outer wall edges of both the skeletons which are opposed to each other with the gap interposed therebetween. While being fixed to the part facing surface,
A pair of hinge receiving base frames each having a hinge support fitting groove extending in the longitudinal direction on the opposite surfaces, and a bottom plate portion fitted in the hinge support fitting grooves of the both hinge receiving base frames, and a cylindrical turning at the top end. A hinge support, which is formed by projecting shafts and is arranged at appropriate intervals in the longitudinal direction, and a guide groove into which the pivot shaft of the hinge support is rotatably fitted are formed in the longitudinal direction on the rear surface portion, and a plurality of ribs are formed. A pair of cover plate support frames that are provided, a cover plate support rod configured to connect between the cover plate support frames in a freely expandable and contractible manner, and a plurality of divided portions in the rod direction, and a support frame for both cover plates. Guide grooves are slidably connected to each other, and a plurality of positioning rods pivotally rotatably pivoting a predetermined distribution position of the rod to each divided portion of the cover plate supporting rod, the cover plate supporting frame and the cover. Board The gist of the present invention is that it is fixed to each of the divided portions of the holding rod, and is composed of a plurality of cover plates that are overlapped with the adjacent members so as to be slidable in the surface direction and cover the gap. The hinge support is fitted and inserted from a fitting structure in which an edge is cut in a part of the hinge support fitting groove.

[Operation] According to the above configuration, the gap is covered by the plurality of cover plates, and the overlapping of the cover plates is controlled by the configuration of the cover support rod and the positioning rod. An expansion joint can be provided inside the gap by appropriate selection of the width of the plates. Therefore, the front structure of the expansion joint does not become wider than the gap width.
Further, since the cover plate divided into a plurality of expansion joints is reinforced and supported in the surface direction by the structure of the cover support rod and the positioning rod, it has sufficient strength against wind pressure and the like.

[Embodiment] An embodiment according to the present invention will be described below with reference to FIGS. 1 to 3.

Reference numerals 1 and 1 denote hinge receiving base frames made of an aluminum mold material fixed to the outer wall inner step facing surfaces a of the two bodies opposed to each other with a gap G in between, and extend in the longitudinal direction at one end of the substrate portion 2. A hinge support fitting groove 3 having an edge 4 is formed, and a water blocking trough fitting port 5 extending in the longitudinal direction is formed on the inner edge of the base plate portion 2. In the hinge support fitting groove 3, a hinge support fitting notch 6 is formed by cutting the edges 4 facing each other in the longitudinal direction at appropriate intervals up to the width of the groove, and the hinge support fitting groove 3 is provided in the hinge support fitting groove 3. A stop fitting 7 is press-fitted and fitted on the lower side at least with a notch width. Further, reference numerals 8 and 8 denote cover plate supporting frames made of an aluminum mold material, which are suspended and supported on the hinge receiving base frame 1 via hinge supports 9 which will be described later, with respect to a back plate portion 10 extending in the longitudinal direction. The front rib 11, the middle rib 12, and the rear rib 13 are provided in a protruding manner, and a C-shaped guide port 14 having a circular cross section extending in the longitudinal direction is integrally formed on the rear surface of the rear rib 13. In the guide port 14, a hinge support mounting notch 15 is formed by notching an outer edge member at a position corresponding to a position adjacent to the hinge support fitting notch 6 of the hinge support fitting groove 3 of the hinge receiving base frame 1. . The hinge support 9 is fitted into the hinge support fitting groove 3 of the hinge receiving base frame 1 through the hinge support fitting notch 6, and is bent in an L shape with respect to the fitting bottom plate portion 16 which is slidable in the longitudinal direction. The support portion 17 is provided so as to project and the support portion 17
It has a structure in which cylindrical swivel shafts 18, 18 which are rotatably inserted into the guide groove 14 are provided on both sides of the tip of the swivel shaft so that the swivel shaft 18 is inserted into the guide groove 14 and the supporting portion 17 is attached. The support portion 17 is moved to the position of the hinge support mounting notch 15.
The cover plate support frame 8 by rotating the
While being pivotally attached to the fitting bottom plate portion 16, the fitting bottom plate portion 16 is inserted into the hinge support fitting groove 3 of the hinge receiving base frame 1 from the hinge support fitting notch 6, and is fitted to the fitting bottom plate portion 16 in a state of being engaged with the edge 4. The tightening screw 19 that is screwed into the hinge support fitting groove 3
Fasten and secure toward the bottom. At this time, in the hinge support 9, the fitting bottom plate portion 16 slides in the hinge support fitting groove 3, but since the stop fitting 7 is fixedly installed in the hinge support fitting groove 3, it is prevented from falling. Reference numeral 20 denotes a cover plate support rod connected between the cover plate support frames 8 and 8, and a second support rod 22 having a similar cross section to the first support rods 21 and 21 on both sides having a groove type cross section. , 22 are slidably fitted in the longitudinal direction, and the third support rod 23 is slidably fitted in the longitudinal direction between the second support rods 22, 22 to expand and contract in the longitudinal direction. The end portions of the first support rods 21 and 21 at both ends are connected to the middle rib 12 and the rear rib 13 of the cover plate support frame 8.
It is located between them and is pivotally attached by a bolt 24 so as to be swingable. In addition, 25 is provided with spherical sliding ends 26, 26 integrally formed at both ends in the guide grooves 14, 14 of the facing cover plate supporting frames 8, 8 so as to be slidable in the longitudinal direction and pivotally displaceable. Is a positioning rod installed at an appropriate angle (preferably 45 degrees), and is the third support rod 23.
The screw shaft 27 rotatably and pivotally attached to the center of the rod via a screw shaft 27 protruding from the rod shaft. The screw shaft 27 protruding from the left second support rod 22 and the right second support rod 22 is the left side of the rod. It is pivotally connected to the 1/4 position and the right 1/4 position. Then, the outer edges of the first cover plates 28, 28 are fixedly attached to the front ribs 11 of the cover plate supporting frames 8, 8 so as to be integrated with the cover plate supporting frame 8 and the first cover plate 28. Each of the rear plate portions of the second cover plates 29, 29 having a U-shaped cross section, which comes into contact with the inner edge of the front face so as to slide in the surface direction, is provided with the cover support rod 2
It is fixed to the second support rods 22, 22 of No. 0. Further, the third cover plate 30 in which both sides of the front surface are in contact with the inner edges of the second cover plates 29 so as to be slidable in the surface direction is rotated via the third support rod 23 of the cover support rod 20 and the screw shaft 27. Freely pivoted.

Reference numeral 31 is a waterproof gutter provided between the hinge receiving base frames 1 and 5 between the hinge receiving base frames 1 and 5, and 32 is an inner step surface b of the building.
And a caulking material having appropriate elasticity filled between the first cover plates 28, 28.

According to the above configuration, when the gap G between the buildings a and a is expanded or contracted, the cover support rod 20 suspending the first cover plate 28, the second cover plate 29, and the third cover plate 30 becomes The support rod 21, the second support rod 22, and the third support rod 23 are slid to expand and contract to follow. At this time, the second support rod 22 and the third support rod 23 suspending the second cover plate 29 and the third cover plate 30 have sliding ends 26, 26 formed at both ends with respect to the guide grooves 14, 14. Since the positioning rod 25 slidably connected to each other and the predetermined ratio distribution position are rotatably arranged in the gap G direction via the screw shaft 27, the gap G is covered even if the width of the gap G varies. The overlapping of the first cover plates 28, 28, the second cover plates 29, 29, and the third cover plate 30 extending in parallel extends along the gap G.

Further, the strain in the plane direction of the building is absorbed by the rotation of the pivot shaft 18 formed in the hinge support 9 and the guide groove 14 formed in the cover plate support frame 8.

That is, according to the above configuration, the gap G is covered by appropriately selecting the sliding range according to the variable widths of the two first cover plates 28, the two second cover plates 29, and the third cover plate 30. The width of the expansion joint need not be larger than the gap.

[Effects of the Invention] As described above, the expansion joint for a large gap according to the present invention has a structure in which the gap is covered by a plurality of cover plates, and the overlap between the cover plates is made up of the cover support rod and the positioning rod. The expansion joint was able to be installed inside the gap by controlling the structure, and the front structure does not become wider than the gap width, and the influence of the expansion joint on the design of the building is reduced. In addition to having the characteristics of being capable of achieving a large gap, it has an allowable degree of freedom that can sufficiently cope with a large gap and a sufficient strength against wind pressure and the like, and the practical effect after implementing the present invention is extremely large.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of an expansion joint for a large gap according to the present invention, FIG. 2 is a rear view of the same, FIG. 3 is an enlarged perspective view of the same part, and FIG. It is a longitudinal cross-sectional view showing a joint. DESCRIPTION OF SYMBOLS 1 ... Hinge receiving base frame, 3 ... Hinge support fitting groove, 8 ... Cover plate support frame, 9 ... Hinge support, 14 ... Guide groove, 16 ... Fitting bottom plate part, 17 ... Support part, 18 ... Swivel axis, 19 ... Fastening screw, 20 ... Cover plate support rod, 21 ... First support rod, 22 ... Second support rod, 23 ... Third support rod, 24
... Bolts, 25 ... Positioning rods, 26 ... Sliding ends, 27 ... Screw shafts, 28 ... First cover plate, 29 ... Second cover plate, 30
… Third cover plate, G… Gap.

Claims (3)

[Scope of utility model registration request] 1. An expansion joint, which is provided in a strain absorbing gap appearing in a wall of a building, is fixed to an outer wall edge facing surface of both skeletons facing each other across the gap, and is fixed to the facing surface. A pair of hinge receiving base frames that form a hinge support fitting groove extending in the longitudinal direction, a bottom plate portion is fitted in the hinge support fitting grooves of both of the hinge receiving base frames, and a cylindrical turning shaft is projected at the top end. Hinge supports arranged at appropriate intervals in the longitudinal direction, and a guide groove into which the pivot shaft of the hinge support is rotatably fitted are formed in the longitudinal direction in the back surface portion, and a plurality of ribs are provided. A pair of cover plate support frames provided, a cover plate support rod configured to connect between the cover plate support frames in a freely expandable and contractible manner, and a plurality of divided portions in the rod direction, and guides for the cover plate support frames. Slidable between grooves A plurality of positioning rods that are connected to each other and rotatably pivot the predetermined distribution positions of the rods to the respective divided portions of the cover plate supporting rod, and the cover plate supporting frame and the divided portions of the cover plate supporting rod, respectively. An expansion joint for a large gap, comprising: a plurality of cover plates that are fixedly mounted and are stacked on adjacent members so as to be slidable in a plane direction to cover the gap. 2. A hinge support bottom plate fitting structure in which an edge is cut out in a part of the hinge support fitting groove, and a fastening means for the hinge support fitting groove is configured in the bottom plate part. The expansion joint for large gaps according to claim 1. 3. A large size according to claim 1, wherein a stop metal fitting for dividing the groove is fitted into the hinge support fitting groove so as to prevent the bottom plate portion of the hinge support from slidingly dropping. Expansion joint for gaps.