JPH081380U - Expansion joints - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an expansion joint that is constructed at an angular position that is concealed from the surface side of a building and does not divide the design of the entire building. [Structure] When the ends of both buildings a and b sandwiching the strain absorbing gap G are covered with an expansion joint 3 which is capable of expanding and contracting in a plane direction, the expansion direction B of the expansion joint 3 is the main expansion of the gap G. Narrow direction A
It is characterized in that it is attached so as to be substantially orthogonal to.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an expansion joint that covers a strain absorbing gap that appears on the surface of a building.

[0002]

[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 to prevent the destruction of the structure caused by the distortion. The structure will appear. Therefore, in general, expansion joints are used as a structure that covers this space so that it can be expanded and narrowed and absorb level differences.

This type of expansion joint that has been conventionally used is an expansion joint that is parallel to the main expansion / contraction direction A between the ends of the structures a and b that sandwich a strain absorbing gap G as shown in FIG. The expansion joint 50 having a surface covers the expansion joint 50, and the expansion and contraction of the expansion joint 50 in the surface direction (arrow B) absorbs the expansion and contraction of the gap G.

[0004]

[Problems to be solved by the device]

 However, when the building becomes large in size in recent years, the expansion joint occupies the surface of the building because the width W of the expansion joint 50 increases as the gap G between the buildings a and b increases in the above conventional structure. As the ratio becomes large, for example, on the outer wall of the building, there is a problem that the wide expansion joint extending in the height direction divides the design of the entire building and impairs the overall harmony.

The present invention has been made in view of the above problems, and an expandable joint covering a gap between buildings is arranged at an angular position so as to be hidden from the front side of the buildings, thereby cutting the design of the entire building. It is an object of the present invention to provide an expansion joint having a novel structure that can be installed without performing the above-mentioned work, and that exhibits a sufficient gap narrowing and a level difference absorbing action.

[0006]

[Means for Solving the Problems]

 In the expansion joint according to the present invention, as shown in FIG. 1, the expansion direction of the expansion joint 3 (arrow B) is the main portion of the gap G between the ends of the buildings a and b sandwiching the strain absorbing gap G. The gist of the present invention is that the structure is such that the covering is provided so as to be substantially orthogonal to the narrowing direction A.

[0007]

[Action]

 Therefore, when the gap G between the buildings a and b expands and contracts (arrow A) as shown by the broken line in FIG. 1, the expansion joint 3 tilts (α) at both ends engaged with the buildings a and b. However, it will follow by the expansion and contraction in the direction of the surface (arrow B). In a normal state, the main expansion / contraction direction A of the gap G and the expansion / contraction surface B of the expansion joint 3 are positioned substantially orthogonal to each other. Therefore, when facing the wall surfaces of the buildings a and b, the structure of the expansion joint 3 is almost the same. It never appears in front.

[0008]

【Example】

 An embodiment of the expansion joint according to the present invention will be described below with reference to FIGS.

The two buildings a and b, which are constructed with a strain absorbing gap (main expansion / contraction direction A) G, are arranged such that the end of the wall surface of the building b, which is substantially orthogonal to the wall surface of the building a, is orthogonal to each other. It is located so as to secure the gap G width. The expansion joint mounting auxiliary plate 1 projecting from the wall surface of the one building a has a width between the expansion joint 3 and the liner 2 fixed in the direction in which the gap G extends at the end of the other building b. It is provided by separating W.

Reference numerals 4 and 4 denote support base frames made of an aluminum-shaped material fixedly provided on the opposing surfaces of the expansion joint mounting auxiliary plate 1 and the liner 2, respectively, and an edge 7 extending in the longitudinal direction at one end of the substrate portion 5. A hinge support fitting groove 6 having a groove is formed, and a waterproof rubber mounting rib 8 extending in the longitudinal direction is formed on the inner edge of the substrate 2.

In the hinge support fitting groove 6, a hinge support fitting notch 9 is formed by cutting the edges 7 facing each other in the longitudinal direction at appropriate intervals up to the width of the groove, and the hinge support fitting groove 6 has a hinge. A stop fitting 10 is press-fitted below the support fitting notch 9 with at least the width of the notch.

Reference numerals 11 and 11 denote aluminum plate cover plate support frames that are suspended and supported on the support base frame 1 via hinge supports 12, which will be described later, and a back plate portion extending in the longitudinal direction. A cover mounting rib 14 is provided so as to project from the front edge of 13, and a C-shaped guide groove 15 having a circular cross section extending in the longitudinal direction is integrally formed at the rear edge to form an E-shaped cross section. Be presented.

In the guide groove 15, a hinge support mounting notch 16 is formed by notching an outer edge member at a position corresponding to a portion adjacent to the hinge support fitting notch 9 of the hinge support fitting groove 6 of the support base frame 1. Formed.

The hinge support 12 is fitted into the hinge support fitting groove 6 of the support base frame 4 from the hinge support fitting notch 9 and is substantially L-shaped with respect to the fitting bottom plate portion 17 which is slidable in the longitudinal direction. The structure is such that a supporting portion 18 that is bent in a letter shape is provided in a protruding manner, and cylindrical turning shafts 19 that are rotatably inserted into the guide groove 15 are provided on both sides of the supporting portion 15 in a protruding manner. .

In the hinge support 12, the pivot plate 19 is inserted into the guide groove 15, the support portion 18 is moved to the position of the hinge support attachment notch 16, and the support portion 18 is rotated backward (arrow) to cover the cover plate. While being pivotally attached to the support frame 11, the fitting bottom plate portion 17 is inserted into the hinge support fitting groove 3 of the supporting base frame 4 from the hinge support fitting notch 9 and engaged with the edge 7, the fitting bottom plate portion 17 The fastening screw 17 screwed into the portion 17 is fastened and fixed toward the bottom surface of the hinge support fitting groove 6.

At this time, the fitting bottom plate portion 17 of the hinge support 12 slides in the hinge support fitting groove 6, but since the stop metal fitting 10 is fixedly installed in the hinge support fitting groove 6, it does not collide. And prevent the fall.

Reference numeral 21 is a cover plate support rod having spherical sliding ends 22 and 22 formed at both ends, and is slid with respect to the guide grooves 15 and 15 of the cover plate support frames 11 and 11 facing each other. The moving ends 22 and 22 are pivotally mounted so as to be slidable in the longitudinal direction and rotatable and displaceable, and are erected at an angle (preferably 45 degrees). Further, the cover plate supporting rod 21 is connected by a suspending rod 23 between a position of about 1/4 of the rod length and a rear edge of the guide groove 15 of one cover plate supporting frame 11 via pin shafts 24 and 24, respectively. I will do it.

Then, the outer end edges of the pressing cover plates 25, 25 are fixed to the cover plate mounting ribs 14 of the cover plate supporting frames 11, 11 by mounting screws 26 and integrated with the cover plate supporting frame 11. At the same time, the cover plate 27 is positioned so as to contact both sides of the front face with the inner edge of the presser cover plate 25 so as to slide in the surface direction, and the cover plate 27 is rotated through the center of the cover plate support rod 21 and the screw shaft 28. Freely pivoted.

Reference numeral 29 is a waterproof rubber provided between the waterproof rubber mounting ribs 8 of the support base frames 4 and 4, and 30 is a surface of the buildings a and b and the pressing cover plates 25 and 25. It is an elastic caulking material filled in between.

According to the above configuration, the expansion joint 3 is installed so as to be orthogonal to the main expansion / contraction direction of the gap G between the buildings a and b. Therefore, when the gap G is narrowed, the spherical sliding ends 22 and 22 formed at both ends of the cover plate support rod 21 suspending the cover plate 27 cause the guide grooves 15 and 15 of the cover plate support frames 11 and 11 to move. The expansion joint 3 tilts (arrow α) and the sliding ends 29, 29 slide and move along the guide grooves 15, 15 to change the angle of the cover plate supporting rod 21. , Follow the expansion and contraction between both support base frames 4 and 4. In a normal state, when facing the wall surfaces of the buildings a and b in which the gap G is formed, the surface of the expansion joint 3 is positioned substantially parallel to the line of sight. Never appear in front.

Although the embodiment of the expansion joint 3 discloses a typical structure thereof, the present invention is not limited to this embodiment, and the expansion and contraction in the width direction of the cover plate 27 and both ends thereof are possible. Needless to say, various types of expansion joints can be used as long as they are expansion joints having a structure in which the part is pivotally installed so as to be tiltable with respect to the structures a and b.

[0022]

[Effect of device]

 As described above, the expansion joint according to the present invention has a structure in which the expansion and contraction surface of the expansion joint is arranged so that the gap between both structures is substantially orthogonal to the main expansion and contraction direction of the gap. The expansion joint is concealed from the surface side, and the structure of the expansion joint does not divide the design of the entire building viewed from the surface side, and the effect obtained by implementing the present invention is extremely large.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing the principle of strain absorption of an expansion joint according to the present invention.

FIG. 2 is a vertical sectional view showing an embodiment of the expansion joint according to the present invention.

FIG. 3 is a rear view of the main part.

FIG. 4 is an enlarged perspective view of the main part.

FIG. 5 is an explanatory view showing a strain absorption principle of a conventional expansion joint.

[Explanation of symbols]

 a, b Building G Gap 1 Auxiliary joint mounting auxiliary plate 2 Liner 3 Expansion joint 4 Support base frame 11 Cover plate support frame 21 Cover plate support rod 23 Suspension rod 25 Presser cover plate 27 Cover plate

Claims (1)

[Scope of utility model registration request] 1. When covering between the ends of both buildings sandwiching a strain absorbing gap with an expansion joint which can expand and contract in a planar direction, the expansion and contraction direction of the expansion joint is substantially orthogonal to the main expansion and contraction direction of the gap. An expansion joint having a structure in which it is inserted and installed as described above.