JPH0715925Y2 - Expansion joint cover mounting pin Fall prevention plate - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of construction technology in an expansion joint device for covering a gap in a wall surface of a building, and particularly to a cover attachment pin drop prevention plate for expansion joints for stably holding a cover attachment pin. It is related to the issue.

[0002]

2. Description of the Related Art A structure has a gap structure as a means for preventing the structure from being destroyed due to expansion and contraction due to temperature changes, unequal settlement, and strain caused by earthquakes. An expansion joint is formed on the floor surface so as to cover the gap so as not to hinder the expansion and contraction and level displacement of the gap. That is, the structure of the conventional expansion joint is such that, as shown in FIG. 6, a frame G is provided between a pair of frame bases 50, 50 fixed to opposite edges of the buildings a, a with a gap G therebetween. Cover mounting pin 52 slidably fitted in the sliding groove 51 of the base 50
The telescopic connecting rod 53 can be tilted vertically and horizontally via
In addition, the structure is such that it is hung so as to follow the expansion and contraction of the gap, and a cover plate 54 that covers the gap G is provided on the expansion and contraction connecting rod 53, and the expansion and contraction connecting rod 53 has a W-shaped plate spring 5
Suspended by 5.

[0003]

However, according to the above construction, the cover mounting pin 52 pivotally mounting the expansion and contraction connecting rod 53 is fitted in the sliding groove 51 of the frame base 50 so as to be slidable in the longitudinal direction. Therefore, particularly in the case of a wall expansion joint, since the frame base 50 is positioned in the vertical direction during construction, the cover mounting pin 52 fitted in the sliding groove 51 slides down.
It was necessary to carry out the work while gripping each cover mounting pin 52, and the positioning at the time of mounting the cover plate 54 was troublesome.

The present invention has been made in view of the above problems, and an expansion joint in which the cover mounting pin does not easily slide with respect to the frame base during construction and the flexibility of the expansion connecting rod is not impaired. The purpose of the present invention is to provide a cover attachment pin drop prevention plate spring.

[0005]

A cover mounting pin drop prevention plate spring for expansion joints according to the present invention is provided between a pair of frame bases fixedly opposed to each other at the edges of both buildings with a gap between the buildings sandwiched therebetween. In a structure in which a plurality of expansion and contraction connecting rods are arranged and hung, and the expansion and contraction connecting rods of an expansion joint formed by attaching and fixing a cover plate covering the gap to the expansion and contraction connecting rods are hung on both frame bases, An expansion and contraction connecting rod is pivotally installed at the top end of the cover mounting pin having the base fitted slidably in the sliding groove formed in the longitudinal direction of the frame base, and the sliding base of the cover mounting pin and The gist of the present invention is to insert a pin drop prevention plate spring made of an elastic material between the sliding grooves of the frame base to appropriately add sliding resistance.

[0006]

[Operation] When the expansion joint is to be installed in the gap appearing on the surface of the building, first, a predetermined number of cover mounting pins in which the pin drop preventing plate springs are engaged with the sliding groove of the frame base are incorporated from the ends. Used in. Since each cover mounting pin can be maintained in a predetermined sliding position by the elasticity of the pin drop prevention plate, the cover mounting pin slides down even when the expansion joint of a vertically extending gap such as a wall surface is installed. However, when the expansion connecting rod is hung on the cover mounting pins assembled to both frame bases, the expansion connecting rod is placed and supported at a predetermined position. Therefore, it is easy to position the expansion and contraction connecting rod with respect to the cover plate.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cover attachment pin drop prevention plate spring for an expansion joint according to the present invention will be described below with reference to the drawings.
FIG. 1 is an exploded perspective view of an essential part of an expansion joint using a pin drop prevention plate spring according to the present invention, FIG. 2 is a front view (a) and a plan view (b) of the pin drop prevention plate spring, and FIG. It is a longitudinal cross-sectional view of a joint. Reference numerals 1 and 1 denote a pair of frame bases having an L-shaped cross section fixedly secured by anchor bolts 6 to the opposite end edges of the structures a and a with a gap G therebetween, and both frame bases. 1,
1 is provided with sliding grooves 2 each having locking edges 3 and 3 formed on the front side base surface, and on the inner edge side base surface, a spring end locking groove 4 extending in the longitudinal direction and a water stop plate fitting, respectively. The groove 5 is formed. Reference numeral 7 is a cover mounting pin in which a columnar pivot portion 10 is integrally formed on the top end of a supporting portion 9 provided upright on a sliding base portion 8. It is cut into a short rod shape that fits the width of 12 and can be slidably inserted into the sliding groove 2 from the groove end. The expansion and contraction connecting rod 11 constitutes a sliding groove 12 having locking edges 13, 13 into which the cylindrical pivot portion 10 of the cover mounting pin 7 is inserted laterally, and is fitted into both frame bases 1, 1. Cylindrical pivot part 1 of the pair of cover mounting pins 7, 7
0 is inserted into the sliding grooves 12, 12 so that it can traverse both frame bases 1, 1 and can be tilted vertically and horizontally, and is hung so as to follow the expansion and contraction of the gap.

Further, reference numeral 14 is a hanging plate bar bent in a W shape. Locking ends 15, 15 formed at both ends of the hanging plate bar 14 are barb ends of the frame bases 1, 1. While engaging with the locking groove 4, the central portion and the central portion of the expansion and contraction connecting rod 11 are fixed to each other via bolts and nuts 16.

The pin drop prevention plate spring 17 of the present invention is inserted between the sliding groove 2 of the frame base 1 and the cover mounting pin 7 as shown in FIGS. The pin drop prevention plate ridge 17 is made of a thin plate ridge material, and has a narrow width portion that fits in a recess 18 formed in the longitudinal direction on the bottom surface of the sliding base 8 of the cover mounting pin 7. Two
At both ends of 0, plate ridges 21 and 21 bent in a wavy side shape having the groove width of the sliding groove 2 of the frame base 1 are formed.
The cover attachment pin 7 and the pin drop prevention plate ridge 17 are slid on the frame base 1 in a state where the narrow portion 21 of the pin drop prevention plate ridge 17 straddles the concave line 18 of the cover attachment pin 7. The structure is such that the cover is inserted from the two ends and is fixed at the sliding position of the cover mounting pin 7 by the elasticity of the pin drop prevention plate spring 17.

Reference numeral 22 covers both the frame bases 1, 1 and is arranged at appropriate intervals so that sliding packings 23, 23 fixed to the rear surfaces of both ends are in sliding contact with the surfaces of the buildings a, a, respectively. The cover plate is fixed to the expandable connecting rod 11 via the mounting screw 24, and by this installation, the gap G between the buildings a and a is covered.

Reference numeral 25 in the drawing denotes a water stop plate which is fitted and fixed at both ends to the water stop plate fitting grooves 5 and 5 formed in the frame bases 1 and 1 and stretched between the gaps G.

An expansion joint using the pin drop prevention plate spring 17 having the above-mentioned structure is provided with a gap G appearing on the surfaces of the structures a and a.
At the time of installation work, a predetermined number of cover attachment pins 7 engaged with the pin drop prevention plate springs 17 are fitted from the end of the sliding groove 2 of the frame base 1, and the elasticity of the pin drop prevention plate springs 17 causes the predetermined size. Can be maintained at the position of.
Therefore, particularly when the expansion joint is installed in the gap G extending in the vertical direction on the wall surface or the like, the expansion connecting rod 11 hanging between the cover mounting pins 7 can be easily positioned, and the work can be simplified.

[0013]

As described above, according to the structure of the expansion joint cover mounting pin drop prevention plate spring according to the present invention, the expansion and contraction connecting rod is suspended between the frame bases with the freedom of vertical and horizontal expansion and contraction. The cover mounting pin is characterized in that the sliding base portion is inserted into the sliding groove of the base with the pin drop prevention plate ridge interposed therebetween, thereby facilitating positioning during construction. The practical effect after implementation is extremely large.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an essential part of an expansion joint using a pin drop prevention plate spring according to the present invention.

FIG. 2 is a front view (a) and a plan view (b) of the pin drop preventing plate spring.

FIG. 3 is a vertical sectional view of an expansion joint.

FIG. 4 is an enlarged sectional view taken along line IV-IV in FIG.

5 is a sectional view taken along line VV in FIG.

FIG. 6 is a vertical sectional view showing a conventional expansion joint.

[Explanation of symbols]

 1 Frame base 2 Sliding groove 7 Cover mounting pin 8 Sliding base 9 Support part 10 Cylindrical pivot part 11 Expansion joint rod 12 Sliding groove 14 Lifting plate spring 17 Pin fall prevention plate spring 18 Recessed groove 20 Narrow width Part 21 plate spring part 22 cover plate

Claims (2)

[Scope of utility model registration request] 1. A plurality of telescopic connecting rods are arranged and hung between a pair of frame bases fixedly opposed to each other at the end edges of the two buildings with a gap between the buildings sandwiched therebetween, and the gaps are provided on the telescopic connecting rods. In a structure in which the expansion joint rod of an expansion joint having a cover plate for covering and fixed thereto is hung on both frame bases, the expansion joint rods are slidable with respect to a sliding groove formed in the longitudinal direction of the frame base. A pin drop prevention plate spring which is pivotally provided at the top end of a cover mounting pin having a base part slidably fitted therein, and which is made of an elastic material between a sliding base part of the cover mounting pin and a sliding groove of the frame base. A cover mounting pin drop prevention plate spring for expansion joints, characterized by inserting a sliding resistance as needed. 2. A groove is formed on the bottom surface of the sliding base of the cover mounting pin in the longitudinal direction, and a groove of the sliding groove of the frame base is provided at each end of the narrow width portion fitted with the groove. A plate ridge portion having a width and bent in a wavy side surface shape is formed, and the cover attachment pin and the pin drop prevention plate ridge are formed on the frame base with the narrow width portion straddling the concave line of the cover attachment pin. The cover mounting pin drop prevention plate spring for an expansion joint according to claim 1, which is inserted from an end of the sliding groove.