JPH0215705B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) This invention is capable of expanding and contracting into corner areas such as roof-to-wall, wall-to-wall, and floor-to-wall of a building mainly consisting of adjacent concrete walls. This relates to an expansion joint installed over the

(Prior art and its problems) Conventionally, as shown in FIG. 5, in this type of expansion joint 41 attached to the inside corner R, the engaging members 43 for engaging the cover member 42 are arranged on the left and right sides. A symmetrical approximately W-shaped one was used.
However, this symmetrical approximately W-shaped engagement member 4
In case 3, when the building blocks W, W' move, the engaging members 43 perform almost the same movement on the left and right, and the cover member 42 also displaces to follow this movement, so it is especially difficult to fix the wall building W' side. The member 44 requires an overhang 46 that extends toward the other fixed member 45 and supports the cover member 42, and as the gap between the skeletons W and W' increases, the expected width of the overhang 46 also tends to increase. This has caused problems in the strength and shape of each fixing member, and has also affected the function of the expansion joint 41.

The present invention has been made to solve the above-mentioned conventional problems, and the engaging member is formed into an asymmetrical approximately W shape to reduce the overhanging width of the overhanging portion of the fixing member on the extended wall side between the corner frames. It is an object of the present invention to provide an expansion joint that can be made small and still have functionality.

(Means for Solving the Problems) In order to solve the above-mentioned technical problems, the present invention provides a pair of fixing members disposed along the corner frames of adjacent buildings, and An expansion joint consisting of a cover member for shielding a gap between the bodies, and a spring member that is elastically engaged between the fixed members and a spring member that is arranged in a crown shape on the back side of the cover member. An engaging member consisting of a board member to be engaged is attached, and the spring member is approximately W-shaped, and one approximately V-shaped folded leg portion of the approximately W-shape is connected to the other approximately V-shaped folded leg. An expansion joint characterized in that the legs are formed smaller than the folded legs, and the small legs are fixed to a fixing member on the extended wall side between the corner frames. .

(First Embodiment) Next, the first embodiment of the present invention will be explained with reference to FIG. An expansion joint 1 (hereinafter simply referred to as a joint) is provided between the wall W1' and the gap T1 to cover the gap T1, and the joint 1 engages with a plurality of pairs of fixing members 2 and 3. It is composed of a member 5 and a cover member 9.

Reference numeral 2 denotes the above-mentioned fixing member, which is made of a molded material extruded from a light alloy material such as aluminum, and is formed into a short length and arranged at predetermined intervals along the upper surface A of the parapet W1. Its shape includes a mounting piece 2A that slopes slightly downward to the inside (left side in the figure), and an upwardly hanging piece 2B that is vertically formed at the right end (outside end) in the figure of the mounting piece 2A.
In addition, an engagement piece 2C that is expanded as shown in the drawing is formed at a predetermined angle α at the left end (inside end) of the attachment piece 2A.
It is formed to have a substantially Z-shaped cross section. Also, the top hanging piece 2
An engaging portion 2D that engages with the draining member 4 is formed at the upper end of the piece B, and a locking projection 2E having a substantially hook-shaped cross section is formed on a part of the outer surface of the piece 2B.
In addition, the mounting piece 2A has long slot holes 2F and 2F for mounting.
is installed through it, and a receiving convex portion 2 is provided at the inner end of its upper surface.
G is formed. The fixing member 2 thus formed is attached by attachment bolts 31 at predetermined intervals along the upper surface A of the parapet W1.

Further, the fixing member 3 is attached to the wall W1' surface in correspondence with the fixing member 2, and a substantially hook-shaped engagement piece 3B is formed outwardly at the upper end of the attachment piece 3A. At the lower end of the mounting piece 3A, there is provided a support piece 3C that extends outward horizontally and further projects obliquely upward; A hook-shaped locking protrusion 3D is formed. The fixing member 3 thus formed is attached to the surface of the wall W1' using attachment bolts 31 in correspondence with the fixing member 2.

Reference numeral 4 denotes a long draining member that is attached via the fixing member 2, and is made of extrusion molded light metal such as aluminum or synthetic resin. In the cross section of this draining member 4, 4A is a web The water section 4B is provided so as to be inclined downward at a predetermined inclination angle toward the inside, and is provided with a water section 4B that hangs down at a predetermined length at the inner end thereof, and the lower end of the water section 4B is engaged as shown in the drawing. A projecting piece 4C that engages with the end of the piece 2C is formed, and on the right side of the lower end of the water section 4B, the engagement piece has a substantially saw blade shape in cross section and can be engaged with the lower corner of the engaging piece 2C. A surface 4D is formed along its longitudinal direction. Further, a supporting piece 4E is vertically provided on the outer end of the web 4A, and the upper end thereof engages with an engaging portion 2D formed at the upper end of the vertically hanging piece 2B of the fixing member 2 along the outer direction. Engagement piece 4 with approximately hook-shaped cross section
Further, a dovetail groove 4G into which the airtight member 8 is fitted is formed along the longitudinal direction on the inner surface of the upper end of the support piece 4E.

Reference numeral 5 designates an engaging member of the above-mentioned joint 1, which is elastically engaged between the fixing members 2 and 3 and also elastically engages the cover member 9, and is made by bending and forming a spring steel plate or a stainless steel plate. It is composed of a substrate member 6 and a spring member 7.

6 is the above-mentioned substrate member, and the cover member 9
6A is a base web having a predetermined width and a length capable of securing the cover member 9, and both ends of which are bent at a predetermined angle β to be secured. An edge 6B is formed, and the entire substrate member 5 is formed to be elastically deformable.

Reference numeral 7 denotes a spring member which is elastically engaged between the fixing members 2 and 3, and has a large engaging portion 7B and a small engaging portion 7 at both ends of the horizontal mounting web 7A.
B′ is formed. That is, the end of the web 7A on the side of the parapet W1 is bent downward to form a supporting part 7C, and the same end is formed with a folded part 7D in a V-shape (not shown), and the tip thereof is engaged. The edge 7E is formed to form a large engaging portion 7B (also referred to as a large leg portion), and the mounting web 6
Similarly, a small, approximately V-shaped engaging portion 7B' is formed at the end of A on the wall W1' side.

The spring member 7 formed in this way is the base member 6
The mounting web 7A is brought into contact with a predetermined position slightly displaced from the center part of the engaging member 5, which is integrally formed by spot welding or the like, and the engaging member 5 whose side shape in the drawing is approximately π-shaped is formed. The entire engaging member 5 is formed to be elastically deformable.

Prior to attaching the cover member 9 via the engagement member 5 formed in this way, the drain member 4 is elastically engaged between the fixing members 2, and the airtight member 8 is attached to the dovetail groove 4G of the drain member 4. are fitted along the longitudinal direction.

Reference numeral 9 is the above-mentioned cover member, which is made by extrusion molding a light alloy material such as aluminum, and is formed into a long length. It has a horizontal part and is formed in a slightly downwardly inclined shape toward the roof W1 side, and a water section 9B that hangs downward is provided at the end thereof, and a part of the inside surface of the section 9B as shown in the figure is A protruding piece 9C that protrudes to the right side is provided, and a locking protrusion 9D having a locking surface 9E having a substantially sawtooth cross section facing upward is formed in a part of the protruding piece 9C.
Further, an engagement piece 9 having a substantially hook-shaped cross section hangs down from the wall W1' side end of the web 9A in correspondence with the water section 9B.
A locking surface 9G having a substantially sawtooth cross section is formed on the inner surface of the piece 9F, corresponding to the locking surface 9E formed on the locking protrusion 9D. Further, a part of the horizontal part of the web 9A is provided with an upper hanging piece 9H (cover part) that faces the wall W1' at a predetermined distance, and on the side surface of the wall W1' at the upper end thereof. A dovetail groove 9J into which the airtight member 8 is fitted is formed, and an engaging piece 9K which engages with the engaging piece 3B of the fixing member 3 is formed in a part of the piece 9H. Further, protrusions 9L and 9M are formed on the lower surface of the web 9A along its longitudinal direction to separate the engagement member 5 from the substrate member 6 by a predetermined distance.

On the back side of the cover member 9 formed in this manner, the base plate member 6 of the engaging member 5 is elastically engaged at a predetermined interval at positions corresponding to the fixing members 2 and 3 via the engaging surfaces 9E and 9G. , hanging the spring member 7 from above the fixed members 2 and 3 (the engaging piece 4F of the draining member)
When the spring member 7 comes into contact with and presses between the supporting pieces 3C of the fixing member 3, the engaging parts 7B and 7B' of the spring member 7 are elastically deformed, and when the engaging edge 7E passes the locking protrusion 2E and the locking protrusion 3D, the spring member 7 is elastically deformed. After being restored, the engaging edge 7E is engaged with the locking protrusion 2E and the locking protrusion piece 3D, and the vertically hanging piece 9H is provided opposite to the wall W1', and its engaging piece 9K is engaged with the engaging piece 3B. engaged with,
The airtight member 8 fitted into the dovetail groove 9J is attached to the wall W1'
is in contact with. The lower end of the water section 9B of the cover member 9, which is elastically engaged in this way, has a predetermined distance l1 from the web 4A of the water cutter member 4, and also engages from the support piece 4E at a predetermined distance l2. It is attached so as to cover the gap T1 between the two main bodies W1 and W1'.

In addition, numeral 10 in the figure is a water stop plate installed along between both the main bodies W1 and W1'.

Next, the operation and effect of the first embodiment configured as described above will be explained.

Now, in this example, the corner frame W1 of the adjacent building,
a pair of fixing members 2 disposed along between W1';
3, and the frame W1, W via the fixing members 2, 3.
The joint 1 is made up of a cover member 9 that shields a gap T1 between the fixing members 2 and 3, and a spring member 7 and a cover member 9 that are elastically engaged between the fixing members 2 and 3 are provided on the back side of the cover member 9. An engaging member 5 consisting of a base plate member 6 which is elastically engaged in a crown shape is attached, and the spring member 7 is approximately W-shaped, and one approximately V-shaped folded leg portion ( Engagement part) 7
B' is the other approximately V-shaped folded leg (engaging part)
The small leg portion 7 is formed into a smaller leg portion than 7B.
B' is configured to be engaged with a fixing member 3 on the extended wall side between the corner frames W1 and W1'. Therefore, the engagement member 5 is elastically engaged at a predetermined interval at a position corresponding to the fixing members 2 and 3 on the back side of the cover member 9 via the engagement surfaces 9E and 9G, and the fixing members 2,
When the spring member 7 is brought into contact with and pressed between the upper hanging piece 2B (the engaging piece 4F of the draining member) and the supporting piece 3C of the fixed member 3 from above 3, the engaging piece 7B of the spring member 7,
7B' is elastically deformed so that the engaging edge 7E becomes the locking protrusion 2.
When it passes through E and the locking protrusion 3D, it is elastically restored, and when it passes through the engaging edge 7 piece 3D, it is elastically restored, and the engaging edge 7E is engaged with the locking protrusion 2E and the locking protrusion 3D, respectively. The upper hanging piece 9H is the wall W
1', the engaging piece 9K is engaged with the engaging piece 3B, and when the spring member 7 is inserted and engaged, the fixing member 3 of the spring member 7, that is, the V-shape that is on the extended wall side. Since the leg portion (engaging portion) 7B' of the cover member 9 is formed in a small size, the engaging piece 9 of the cover member 9
When K and the engaging piece 3B of the fixing member 3 are engaged with each other, the engagement piece 3B of the fixing member 3 does not undergo large deformation, so insertion and engagement can be easily performed, and the installation of the cover member 9 can be carried out labor-savingly. In particular, the spring member 7 is an asymmetrical combination of a large engaging portion 7B and a small engaging portion 7B', and the large engaging portion 7B mainly responds to fluctuations in the skeletons W1 and W1'. Also, since the small engaging portion 7B' mainly functions to prevent the cover member 9 from floating, the fixing member 3 on the extended wall side between the corner frames is
Since the overhang width can be kept to a width that allows the small engaging portion 7B' to be engaged, there are many advantages such as the function of the joint 1 not being deteriorated.

(Second Embodiment) Next, FIG. 2 shows a second embodiment of the present invention.
The joint 11 is a joint 11 that covers the gap T2 between the inside corner R and the joint 2', and the joint 11 is composed of a plurality of pairs of fixing members 12, 13, an engaging member 14, and a cover member 17. Since both of the fixing members 12 and 13 are attached along the surfaces of the walls W2 and W2', the draining member 4 is omitted, and one of the fixing members 12 protrudes outward from the right end of the mounting piece 12A in the drawing. A support piece 12B is formed, and a web 12C is provided at the end of the support piece 12B.
A projecting piece 12D that slides and supports the substrate member 15 of the engaging member 14 is protruded outward from the left end of the web 12C as shown in the figure, and a spring member 16 having a substantially hook-shaped cross section is provided at the right end of the web 12C as shown in the figure. The locking protrusion 12 that engages with the
E is formed. In addition, the other fixed member 13
is formed in substantially the same shape as the fixing member 3 of the first embodiment. Further, the engagement member 14 also has its base member 1
5 and the spring member 16 are integrally formed in substantially the same shape as the engaging member 5 of the first embodiment, and a large substantially V-shaped leg portion 16B and a small substantially V-shaped leg portion 16 are formed.
It has B′. Further, the cover member 17 has a horizontal web 17A and is formed to have almost the same cross-sectional shape as the first embodiment, and the end of the side edge 17B at the left end in the figure is in contact with the wall W2 surface. A dovetail groove 17L into which the airtight member 8 fits is formed. The joint 11 configured in this manner provides substantially the same effects as the first embodiment.

(Third Embodiment) Next, FIG. 3 shows a third embodiment of the present invention.
3 and the floor W3' to cover the gap T3, this joint 21 is composed of fixing members 22, 23, an engaging member 27, and a cover member 30, Reference numeral 22 is formed into an elongated member having a cross-sectional shape substantially similar to the cross-sectional shape of the fixing member 3 of the first embodiment, and an engagement piece 22 having a substantially hook-shaped cross section is provided at the upper end of the mounting web 22A.
B is formed, and the support piece 2 has a locking protrusion 22D that engages with the spring member 29 of the engagement member 27 at the lower end.
2C is formed, and is fixed by a mounting bolt 31 via its mounting web 22A along a predetermined position of the wall W3 of the extended wall surface.

The fixing member 23 is formed as a long member since water is often used on the floor surface W3', and the fixing member 23 is composed of two members, a mounting member 24 and a draining member 25. This mounting member 24 mainly consists of a mounting web 24A that extends horizontally along the upper surface of the floor W4, and an edge piece 24B is attached to the left end of the web 24A in the drawing.
is provided above, and a locking piece 24C having a substantially hook-shaped cross section is formed at its upper end. Also, the same web 24
Near the right end of A is a screw receiving groove 2 that opens upward as shown.
4D is formed, and a receiving groove 24E for fixing the end of the waterstop plate 10 is formed on the right side thereof.

The mounting member 24 formed in this way is attached to the floor W3'
A drainage member 25 is assembled to the mounting member 24.

Reference numeral 25 is the above-mentioned drainage member formed in a long length, and in its cross section, 25A is a sliding web,
It is provided horizontally corresponding to the mounting web 24A of the mounting member 24, and the mounting member 24 is provided at the right end in the figure.
A protruding piece 25B that engages with the locking piece 24C is formed, and a dovetail groove 2 into which the gasket 26 is fitted is formed.
5C is formed. In addition, the sliding web 25A
A locking protrusion 25D for locking the spring member 29 of the engagement member 27 is formed at the left end in the drawing, and
A screw receiving groove 24 is provided in a part of the lower surface of the web 25A.
A protruding piece 25E that engages with D is formed. The draining member 25 formed in this manner is placed along the mounting member 24 and is screwed together with the screw receiving groove 24D, and the draining member 25 is attached to the gasket 26 via the dovetail groove 25C. is fitted.

Reference numeral 26 is the above-mentioned gasket, which is made of synthetic resin or synthetic rubber and is formed into a long length, and is attached in a filling shape between the cover member 30 and the draining member 25 as shown in the figure. The main body is a filling part 26A that is formed in a bellows shape and is expandable and contractible, and a fitting part 26B that fits into the dovetail groove 25C of the draining member 25 is formed at one end of the filling part 26A, and the other end of the filling part 26A A cover piece 26C is formed along the upper surface of the sliding web 25A of the draining member 25 and engages with the end thereof, and a part of the cover piece 26C is provided with a cover member 30 as shown in the figure.
A protruding piece 26D that engages with is formed. The gasket 26 formed in this way has its fitting portion 26
It is attached along the draining member 25 via B. Further, the engaging member 27 has a base plate member 28 and a spring member 29 integrally formed in substantially the same shape as the engaging member 5 of the first embodiment, and has a large substantially V-shaped leg portion 29B and a small substantially V-shaped leg portion 29B. It is provided with a substantially V-shaped leg portion 29B' and has an elastic function similar to the first embodiment. A long cover member 30 is elastically engaged along the fixing members 22 and 23 via the engagement member 27 formed in this way, as in the second embodiment.

This cover member 30 is formed into a substantially L-shaped cross section by a horizontal web 30A serving as a footboard and an upper hanging piece 30B opposite to the wall W3. At the same time, protrusions 30E that are opposed to each other and engage with the substrate member 28 are protruded from both side edges 30C and 30D. Furthermore, a recess 30F into which the protrusion 26D of the gasket 26 is fitted is provided on the lower surface of the side edge 30D along its longitudinal direction. Further, a dovetail groove 3 into which the airtight member 8 is fitted is provided at the upper part of the upper hanging piece 30B.
0G is formed, and an engaging piece 3 that engages with the engaging piece 22B of the fixing member 22 is formed in the dovetail groove 30G.
0H is formed. The base plate member 28 of the engaging member 27 is elastically engaged with the back side of the cover member 30 formed in this manner, and the fixing members 22 and 23 are elastically engaged via the engaging member 27. Also, the engagement piece 30H is the engagement piece 2 of the fixing member 22.
2B, and the gap T3 is covered. Note that the draining member 2 of the cover member 30 and the fixing member 23
5, a gasket 26 is attached so as to be expandable and retractable in a filling manner. The joint 21 configured in this way has the same effect as the first embodiment.

In addition, in the above-mentioned first example and second example,
Although the fixing members 2, 3, 12, and 13 are illustrated as short members, they are not limited to this, and may be elongated members. Further, in the first embodiment, the spring member 7 of the engagement member 5 is connected to the locking protrusion 2 of the fixing member 2, 3.
Although the spring member 7 of the engaging member 5 is shown to be engaged with the locking protrusion 3D, for example, as shown in FIG.
One of the engaging portions 7B' of the locking protrusion 3 of the fixing member 3
D, and the other engaging portion 7B may be elastically engaged using the engaging piece 4F of the draining member 4.

(Effects of the Invention) The present invention includes a pair of fixing members disposed along the corner frames of adjacent buildings, and a cover member that covers the gap between the frames via the fixing members. An expansion joint consisting of an engagement member on the back side of the cover member, which includes a spring member that is elastically engaged between the fixed members and a base member that engages the cover member in a crown shape. The spring member is substantially W-shaped, and one substantially V-shaped folded leg of the substantially W-shape is smaller than the other substantially V-shaped folded leg. By forming the small legs and engaging the fixing member on the extension wall side between the corner frames, when inserting and fixing the spring member, the V is attached to the extension wall side of the fixing member of the spring member. Since the leg portion (engaging portion) in the shape of Since the engaging portion does not undergo significant deformation, insertion and engagement can be easily performed, and the installation of the spring member and cover member can be carried out labor-savingly. In particular, the spring member is an asymmetrical combination of a large engaging part and a small engaging part, and this large engaging part is reliably opened and contracted mainly in response to fluctuations between the inner corner frames. In addition, since the small engaging part mainly functions to prevent the cover member from floating, the overhang width of the fixing member on the extended wall side between the corner frames should be set so that the small engaging part does not engage. Since the overhang width can be kept within the allowable range, the function as an expansion joint is not degraded, so its contribution as an expansion joint is extremely large.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional view of the inside corner of the roof-to-wall structure showing the first embodiment of the present invention, FIG. 2 is a horizontal vertical sectional view of the inside corner of the wall-to-wall relationship of the present invention, and FIG. FIG. 4 is a longitudinal cross-sectional view of a wall-to-floor corner showing a third embodiment of the invention, FIG. 4 is a longitudinal cross-sectional view showing a modification of the first embodiment, and FIG. 5 is a conventional example. 1, 11, 21... Expansion joint, 2, 3, 12, 13, 22, 23... Fixing member, 5, 14, 27... Engaging member, 6, 15, 2
8... Board member, 7, 16, 29... Spring member,
7B, 16B, 29B...Large engaging part (leg part),
7B', 16B', 29B'...Small engaging part (leg part), 9, 17, 30...Cover member, T1, T
2, T3...Gap, W1, W1', W2, W2',
W3, W3'...Building frame.

Claims (1)

[Claims] 1. An expansion joint consisting of a pair of fixing members disposed along between the corner frames of adjacent buildings, and a cover member that covers the gap between the frames via the fixing member. An engaging member is provided on the back side of the cover member and includes a spring member that is elastically engaged between the fixing members and a base member that engages the cover member in a crown shape. It is approximately W-shaped, and the approximately W
One substantially V-shaped folded leg is smaller than the other substantially V-shaped folded leg, and the small leg is attached to a fixing member on the extension wall side between the corner frames. An expansion joint characterized by being configured to be attached to.