JPH0640113U - Expansion joints - Google Patents

Abstract

(57) [Summary] [Object] To provide an expansion joint that is light in weight and has a simple structure by sufficiently absorbing large strains in the vertical and horizontal directions and in the inclination direction. [Structure] A pair of frame bases 1, 1 having a sliding groove 3 extending in the longitudinal direction on the upper surface is fixedly provided at the end edges of both buildings a, a with a gap therebetween. The base portion 6 of the slider 5 is slidably fitted in the slide groove 3 of the frame base 1, and the columnar engaging projection 7 formed integrally with the base portion 6 is provided on the back side of the hanging rod 8. It engages with the formed sliding groove 9 slidably and tiltably. It is characterized in that the cover plate 10 is fixedly installed on the hanging rod 8 which is hung on both frame bases 1 and 1 via the slider 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an expansion joint for covering a gap in a building, and more particularly to an expansion joint having a large strain absorption width.

[0002]

[Prior art]

 Buildings are constantly distorted due to expansion and contraction due to temperature changes, unequal subsidence, earthquakes, etc. Although a large structure has a gap structure for the purpose of preventing damage to the building due to the distortion. Conventionally, various expansion joints have been used as a structure for covering this gap.

[0003]

[Problems to be solved by the device]

 In recent years, as the size of buildings has increased and the height of the building has increased, the width of the gap has become wider, so the strain in the vertical and horizontal directions also increases, and if an expansion joint with a large strain absorption width is configured, the overall load of the expansion joint increases. There were problems, and there was a demand for simplification and weight reduction of the structure.

The present invention has been made in view of the above problems, and an object thereof is to provide an expansion joint that can sufficiently absorb large strains in the vertical and horizontal directions and the inclination direction, and that has a lightweight and simple structure. It is what

[0005]

[Means for Solving the Problems]

 The expansion joint according to the present invention is an expansion joint to be installed on the surface in the same direction of the strain absorbing gap of a building, and is fixed to both edges of the building sandwiching the gap and extends in the longitudinal direction on the upper surface. A pair of frame bases that form the sliding grooves, and the bases are slidably fitted in the sliding grooves of the frame bases, and the columnar engaging projections are formed integrally with the bases. And the columnar engaging projections of the slider are slidably engaged with the sliding grooves formed on the back side, and are vertically and horizontally attached to the frame bases through the sliders. It is composed of a hanging rod which is slidable in a slidable direction and tiltable, and a cover plate which is fixed in parallel in the longitudinal direction with the above-mentioned hanging rods at appropriate intervals so as to cover the gap of the building. It is what

[0006]

[Action]

 Therefore, when a building is relatively displaced through a gap due to expansion and contraction due to temperature changes, unequal subsidence, or an earthquake, the direction in which the gap extends between both frame bases that are fixed with the gap between the buildings fixed. Since the structure is such that the cover plate is fixedly mounted on the hanging rod that is slidably movable and tiltable in the tilt direction and the lateral direction, the sliding range of the slider and the tilting of the member that interferes with the slider Distortion can be sufficiently absorbed by.

[0007]

【Example】

 An embodiment of an expansion joint according to the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of an expansion joint for outer wall, in which frame bases 1 and 1 made of an aluminum frame material are arranged in parallel with each other with a gap therebetween. It is fixed to the ends by frame anchors 2 and 2. The frame base 1 is formed by integrally molding sliding grooves 3 having locking edges 4 in the longitudinal direction along the inner side edges.

The base portion 6 of the slider 5 is fitted in the sliding grooves 3 of the frame bases 1 and 1 so as to be slidable in the longitudinal direction (arrow A), and The columnar engaging projection 7 protruding in 5 and having a substantially cylindrical cross section is formed on the back surface of the hanging rod 8 hooked on both frame bases 1 and 1 with respect to the sliding groove 9 integrally formed in the longitudinal direction. And is slidable in the direction of arrow B and tiltable in the direction of arrow C.

On the front side of the hanging rod 8, a cover plate 10 that covers the gap between the buildings a and a is fastened with cover fixing screws 11 and 11 and is arranged in parallel with the cover plate 10. A plurality of hanging rods 8, 8 ... Have a structure in which they are fixed in parallel at a predetermined interval. Further, the packing fitting grooves 12, 12 which are located on the back surfaces of both edges of the covered plate 10 and face inward are integrally formed, and the packing 13 is fitted into each packing fitting groove 12 to form a lip. The structure is such that the parts 14 are slidably and closely attached to the surfaces of the buildings a and a that are arranged side by side.

Reference numeral 15 is a waterproof gutter formed of a soft material such as vinyl chloride resin, and has both side edges fixed with sufficient bending between the frame base 1 and the surface of the building a. .

The expansion joint having the above-described structure is pivotally mounted between the frame bases 1 and 1 fixed with a gap between the buildings a and a so as to be slidably displaced in the extending direction of the gap, the tilt direction, and the lateral direction. Since the cover plate 10 is fixedly installed on the hanging rod 8, the gap can be obtained only by changing the length of the hanging rod 8 according to the width of the cover plate 10 having a sufficient width to cover the gap. It is possible to deal with a large building, and it is possible to sufficiently absorb the displacement in the direction in which the gap extends.

Next, FIG. 4 shows another embodiment of the fitting structure of the slider 5 in the sliding groove 3 of the frame base 1. A concave groove 16 is formed on the back surface of the base portion 6 of the slider 5, and a plate spring 17 elastically biased so as to bulge from the groove is fixed to the concave groove 16 with a screw 18. When the base 6 is fitted into the sliding groove 3 of the frame base 1, the plate spring 17 makes a sliding contact with the bottom surface of the groove with an appropriate elastic pressure, and the slider 5 is attached to the frame base 1 during work. The sliding groove 3 does not slide freely and fall, so that workability can be improved.

[0013]

[Effect of device]

 As described above, the expansion joint according to the present invention has a structure in which the cover plate is fixedly mounted on the hanging rod pivotally mounted so as to be three-dimensionally displaceable with respect to the frame base, so that expansion and contraction due to temperature changes in the building In addition, it is possible to sufficiently absorb large strains in the vertical and horizontal directions and the tilt direction due to unequal settlement and earthquakes, etc., and all members can be composed of aluminum pulling material, so weight reduction can be achieved. It has the characteristics that can be achieved, and the practical effect after the implementation of this proposal is extremely large.

[Brief description of drawings]

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

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a front view in which the same portion is cut away.

FIG. 4 is an exploded perspective view of an essential part showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame base 3 Sliding groove 5 Slider 7 Columnar engaging protrusion 8 Hanging rod 9 Sliding groove 10 Cover plate 13 Packing 16 Recessed groove 17 Plate start

Claims (2)

[Scope of utility model registration request] 1. An expansion joint to be installed on a surface of a strain absorbing gap in the same direction in a building, wherein sliding grooves extending in the longitudinal direction are fixed on both edges of the building sandwiching the gap and extending in the longitudinal direction. A pair of frame bases configured and a slider in which a base is slidably fitted in a sliding groove of the frame base, and a columnar engaging projection is integrally formed with the base. And the columnar engaging projections of the slider are slidably engaged with the sliding grooves formed on the rear surface side, and can be slid vertically and laterally on the frame bases through the sliders. In addition, a hanging rod that is tiltably hung, and the hanging rod are fixed in parallel in the longitudinal direction at appropriate intervals,
An expansion joint composed of a cover plate that covers a gap in a building. 2. The expansion joint according to claim 1, wherein an elastic sliding member such as a plate spring is interposed between the base of the slider and the sliding groove of the frame base.