JPH0719414U - Expansion joint device - Google Patents

Abstract

(57) [Abstract] [Purpose] To make a compact expansion joint device with a simple structure and robust structure. [Structure] A pair of base frame plates 1 and 2 are fixed to the end edges of both buildings a, a having a gap G for absorbing strain therebetween. The side edges of the two cover plates 6 and 6 are connected to each other in a hinge-like manner via the pin shaft 7 in a hinge-like manner to form a hinge-shaped cover structure 5. The side edges of the frame plates 1 and 2 facing each other are swingably connected via pin shafts 8 and 8, respectively. On the back surface of the hinge-shaped cover structure 5, a spring 9 for elastically urging the hinge-shaped connecting portions of both cover plates 6 and 6 is always elastically urged in either the closing direction or the developing direction, and the hinge-shaped cover structure 5 causes a gap. It is characterized by covering G.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an expansion joint device for covering a strain absorbing gap provided in a building.

[0002]

[Prior art]

 Structures have a gap structure as a means to prevent destruction of the structure caused by expansion and contraction due to temperature change, unequal settlement, and strain due to earthquakes, etc. A structure is generally used in which a pair of frame bases are fixed to the ends of a building and a cover plate is slidably covered and connected between the frame bases.

[0003]

[Problems to be solved by the device]

 Therefore, a band-shaped cover plate that is sufficiently wider than the width of the gap is formed, and a large line formed by the expansion joint device appears on the outer wall surface of the building, which causes a problem of dividing the design of the entire building. Had.

The present invention has been made in view of the above problems, and the expansion joint device is made as small as possible so as not to spoil the design of the entire building, and has a simple structure and is robust. It is an object of the present invention to provide an expansion joint device having a novel structure.

[0005]

[Means for Solving the Problems]

 The expansion joint device according to the present invention includes a pair of base frame plates fixedly opposed to each other at the end edges of both structures having a gap for strain absorption therebetween so as to extend along the gap, and the gap. A hinge shape in which two cover plates that extend along the side of the cover plate are connected in a hinge-like manner so that the side edges of both cover plates can be freely expanded through a pin shaft, and when expanded, the width is sufficiently wider than the width of the gap. A cover structure, wherein the outer side edges of both cover plates of the hinge-shaped cover structure are swingably connected to the side edges of both base frame plates via pin shafts. Is.

Further, it is preferable that the expansion joint is located on the back surface of the hinge-shaped cover structure, and is provided with a spring that constantly elastically biases the hinge-shaped connecting structure of both cover plates in the closing direction or the expanding direction. .

[0007]

[Action]

 In the hinge-shaped cover structure, two cover plates are openably and closably connected via a pin shaft like a hinge. When the hinge-shaped cover structure is deployed, it is configured to be sufficiently wider than the width of the gap. Therefore, normally, the connecting portion is bent in a “V” shape between the base frame plates. It is installed. Therefore, when the strain absorbing gap between the buildings expands or contracts and the gap between the two substrates to which the hinge-shaped cover structure is connected changes, the angle of the connecting portion changes and follows, maintaining the structure that covers the gap.

Further, since a spring is provided on the back surface of the hinge-shaped cover structure and the hinge-shaped connecting structure of both cover plates is constantly elastically biased in the closing direction or the expanding direction, the number of springs and individual elasticity By adjusting the force, the hinge-shaped cover structure, which is composed of two cover plates, can be stably held between both base frame plates without any problems such as rattling due to wind pressure.

[0009]

【Example】

 Embodiments of an expansion joint device according to the present invention will be described below with reference to the drawings. Reference numerals 1 and 2 denote base frame plates fixed along the opposing edges of the structures a and a with the strain absorbing gap G sandwiched therebetween. The brackets 3 and 3 arranged and fixed to the edge portions are tightly fixed by fixing screws 4.

Reference numeral 5 connects the side edges of the two cover plates 6 and 6 to each other via the pin shaft 7 so as to be deployable (arrow A) in a hinge-like manner and is sufficiently wider than the width of the gap G at the time of deployment. It has a hinge-shaped cover structure that becomes wide (1.5 to 2.5 times), and is molded by an aluminum extrusion mold material like the base frame plates 1 and 2.

The outer side edges of the cover plates 6 and 6 of the hinge-shaped cover structure 5 are opposed to the side edges that face each other with the gap G between the base frame plates 1 and 2 interposed therebetween via pin shafts 8 and 8, respectively. They are connected through a swingable hinge structure (arrow B), and the connection angle θ of both cover plates 6 and 6 changes and follows the expansion and contraction of the width W of the gap G.

Further, in the direction in which the gap G extends on the back surface of the hinge-shaped cover structure 5, springs 9, 9 ... Made of an elastic material such as stainless steel are arranged at appropriate intervals, and the springs are arranged. Both ends of 9 are engaged with locking notches 11 formed in reinforcing ribs 10 provided at the center of the back surface of both cover plates 6 and 6, respectively, and both cover plates 6 and 6 are connected via a pin shaft 7. The elastic force is always applied in the direction of decreasing the angle θ.

Reference numeral 13 is a waterproof rubber whose both side edges are fixed to the base frame plates 1 and 2 and which are fixed to the back of the hinge-shaped cover structure.

In the expansion joint device having the above-mentioned configuration, the widths of the two cover plates 6 and 6 are normally set so that the connecting portion is mounted between the base frame plates 1 and 2 in a state in which the connecting portion is bent in a V shape. A hinge-shaped cover structure 5 is constructed by design. When the width W of the strain absorbing gap G between the structures a and a is expanded and contracted to change the distance between the two substrates 1 and 2 connected to the hinge-shaped cover structure 5, the angle θ of the connecting part is changed. It follows and the external structure is not damaged.

Further, the hinge-shaped cover structure 5 is provided with a spring 9 on its back surface, and constantly urges elastically in the closing direction via a pin shaft 7 connecting both cover plates 6 and 6 in a hinge-like shape. Therefore, by appropriately selecting the number of the springs 9 and the elastic force of each spring 9, the hinge-shaped cover structure 5 formed by the two cover plates 6 and 6 has a problem such as rattling due to wind pressure or the like. Is blocking things.

In each of the above-described embodiments, the spring 9 provided on the back surface of the hinge-shaped cover structure 5 is used to reduce the connection angle θ between the two cover plates 6 and 6 of the hinge-shaped cover structure 5. Although elastically biased is shown, the direction of the elastic force can achieve the purpose even if elastically biased so as to expand the connection angle θ of the two cover plates 6 and 6. It goes without saying that things can be done.

[0017]

[Effect of device]

 As described above, the expansion joint device according to the present invention has a structure in which a hinge-shaped cover structure in which two cover plates are connected in a hinge-like shape covers the space between the edges of the building with a hinge-shaped cover structure. It has a feature that the appearance of the device can be made small so as not to divide the design of the entire building, the structure is simple, and a robust compression joint device can be constructed. The practical effect after the implementation of the device is extremely large.

[Brief description of drawings]

FIG. 1 is a plan sectional view of an expansion joint device for outer wall showing a first embodiment of the expansion joint device according to the present invention.

FIG. 2 is a perspective view of the main part.

[Explanation of symbols]

 1, 2 Base frame plate 5 Hinged cover structure 6 Cover plate 7, 8 Pin shaft 9 Spring 10 Reinforcing rib

Claims (3)

[Scope of utility model registration request] 1. A pair of base frame plates that are fixedly fixed to each other so as to extend along the gap with respect to the end edges of both structures sandwiching the strain absorbing gap, and two extending along the gap. And a hinge-shaped cover structure in which side edges of the cover plates are connected to each other in a hinge shape so as to be freely expandable via a pin shaft, and the width of the gap becomes sufficiently wider when expanded. An expansion joint device, wherein outer side edges of both cover plates of the hinge-shaped cover structure are swingably connected to side edges of both base frame plates via pin shafts, respectively. 2. A spring, which is located on the back surface of the hinge-shaped cover structure and elastically biases the hinge-shaped connecting structure of both cover plates in the closing direction or the expanding direction at all times. The expansion joint device according to 1. 3. The base frame plate and the cover plate are made of an extruded aluminum material.
The expansion joint device described.