JPS6337363Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field and Purpose of the Invention) The present invention relates to an expansion joint device between building frames.

In general, an expansion joint device connects the gap between two adjacent building frames using a covering material, but when both of these adjacent building frames are parapet frames, one of them is a parapet frame. There are cases where one is a building frame and the other is a wall structure, and there are cases where both are wall structures. The present invention relates to an expansion joint device in which at least one side is a parapet frame;
In particular, when a plurality of cover materials are arranged in a row along the longitudinal direction of the expansion joint device, the abutment portion can be well protected from rain. is its purpose.

(Means for Achieving the Object) In order to achieve the above object, the expansion joint device according to the present invention has two parapet frames that are adjacent to each other with a gap and at least one side of which is erected at the top edge of a building. a long support member fixed to each of the two building skeletons, a cover material held on the support member via a holder to cover the gap between the two building skeletons, and the building skeleton. A side end on the gap side is attached to the one support member fixed on the parapet frame at an offset position on the gap side, and a side edge on the opposite side to the gap is fixed on the parapet frame. In an expansion joint device comprising a draining cap member that is fixed by being attached to a tapagi holder and covers the parapet frame, a plurality of the cover materials are longitudinally butted and arranged one after another, and the butt The present invention is characterized in that a joint plate is disposed on the back side of the two cover members that are arranged in succession in the section, and the joint plate is placed on the upper end of the support member.

(Example) Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First, in FIG. 1, symbols A and A' are buildings built in close proximity, and numerals 1 and 1 are parapet frames erected at the top edges of these buildings. Note that 1a is a waterproof sheet, and 1b is a caulking sealant. These parapet frames 1, 1 are connected by an expansion joint device B.

The expansion joint device B includes support members 2, 2 fixed to the top end of each parapet frame 1, 1, and is held on the support members 2, 2 via a holder 3 to connect both building frames. a cover material 4 that covers the gap α between them; and a draining cap member 1 fixed on the support member 2 and the parapet frames 1, 1 via a cap holder 14 to cover the parapet frame.
It is composed of 3.

The support member 2 is an elongated member made of an extruded material such as aluminum or an alloy thereof, and has a support edge 2b raised from a substantially horizontal fixed edge 2a.
A fitting groove 7 into which the airtight material 6 is fitted is formed on one side of the upper end of b, and a locking protrusion 8 with a bent tip protrudes from the other side. A locking groove 12 is formed downward. In addition, fixed edge 2
A waterstop plate fitting groove 10 is formed in an upward direction on the inside of a.

The supporting members 2, 2 having the above configuration are arranged such that the locking protrusions 8, 8 are opposed to each other at a biased position on the side of the gap between the building frames on the parapet frames 1, 1, and the fixed edge 2a is attached to the building frame. It is fixed by screwing to an anchor plug buried in the top of 1,1.

Next, a holder 3 is held on these supporting members 2, 2. The holder 3 has cover material locking parts 3a bent diagonally downward at both ends, and has a length of approximately 50 mm.
It is a short metal member of ~60 mm, and is constructed on the support member 2 by an elastic holding member 11 made of an elastic body such as a metal spring material. Elastic holding member 11
is constructed by bending wing pieces 11b to have a W-shaped cross section on both sides of a central protrusion 11a.

Symbols 3b and 11c are working holes, and when installing the holder 3 on the support member, press the center part downward from above the airtight material 6 at the upper end of the support member 2, and pass a jig q such as a screwdriver through the hole 3b. , by applying its tip to the hole 11c, the wing pieces 11b of the support member 11 at both ends are expanded at the lower part of the locking ridge 8 of the support member 2, and the wing pieces 11b are held by being locked to the flange 8. As a result, the holder 3 is installed on the support member 2 in such a way that it cannot be removed.

In normal cases, it is sufficient for the holders 3 having the above structure to be installed along the parapet frame 1 at intervals of about 1 m.

A long cover material 4 is fitted over the holder 3. The cover material 4 is made of aluminum or its alloy, or metal such as iron or stainless steel,
The center is slightly sloped in the shape of a roof, has approximately the same width as the holder 3, and forms hanging edges 4a from both ends, and the lower ends of the hanging edges 4a are bent inward to form a locking receiving part 4b. ing.

When attaching the cover material 4 to the holder 3, press down the cover material from above the holder 3,
It is sufficient to lock it at both ends of the holder 3. At this time,
The hanging edge 4a of the cover material 4 is connected to the locking part 3 of the holder 3.
The cover material 4 is fitted onto the holder 3 with the lower end portion of the lower end portion of the lock receiving portion springing downward.

In addition, by forming sawtooth-like uneven stripes p on the inner side of the lower end of the hanging edge 4a of the cover material 4, each part of the lower end of the holder 3 and each uneven strip on the lower end of the hanging edge 4a come into contact with each other in a small meshing manner. Therefore, both members 3 and 4 can be locked to the appropriate uneven stripes even if there is some error in the dimensions, so fine adjustment of the locking can be made, good locking can be obtained, and wobbling etc. can be avoided. do not have.

Next, a draining cap member 13 is attached to the parapet frame 1 below the end of the cover material 4, and guides rainwater dripping from the end of the cover material 4 to the inside of the parapet frame 1. The above water drainer Kasagi member 1
3 is locked and fixed to the Kasagi holder 14 and the support member 2.

The draining cap member 13 is a long member made of metal such as aluminum, and has an upright portion 13a formed at its side end on the side of the gap between the building frames, and at its side end on the opposite side to the gap. is the hanging part 13b
A lock receiving portion 13c is bent inside the lower end of the hanging portion 13b. Also,
The Kasagi holder 14 is made of metal such as aluminum or iron, and has a length of about 50 mm like the holder 3 above.
A short member of ~60 mm, comprising a horizontal fixing piece 14a and a locking piece 14b bent at an obtuse angle larger than a right angle at one end of the fixing piece 14a.
A Kasagi receiving protrusion 14c is formed above the intermediate portion of the cap. The free end portion of the horizontal fixing piece 14a is stably superimposed on the fixing edge 2a of the support member 2, and is fastened and fixed with a screw.

The draining cap member 13 has its upright portion 13a locked in the locking groove 12 of the support member 2, and the lock receiving portion 13c of the hanging portion 13b is locked in the locking piece 14b of the cap holder 14. It is fixed.

Note that the upright portion 13a of the draining cap member 13
It is preferable to form an engagement convex portion 13d and an engagement recess 12a to be engaged with the engagement groove 12 of the support member 2 to securely engage the support member 2. At this time, the draining cap member 1
If a bent part is formed on the engagement convex part 13d of No. 3, and an air chamber is formed above the locking part of the uneven parts 12a and 13d, even if rainwater blows in from the locking part, the blowing pressure will be reduced. This is more preferable because the pressure will be reduced in the air chamber and the rainwater will flow down without entering the back side of the draining cap member 13.

Next, a plurality of elongated cover materials 4 are arranged in a row so as to be butted against each other along the longitudinal direction. In this abutment part, since the adjacent members are made of metal, there is usually a gap of about 6 mm between the end surfaces of the two adjacent cover materials 4, taking into account expansion and contraction due to yearly temperature changes, daily temperature changes, etc. is formed, and each of the above-mentioned constituent members is formed while maintaining this gap. A joint plate 17 is disposed on the back surface of the adjacent ends of the two cover materials 4 and supported on the support member 2, and the two adjacent cover materials 4 are connected to each other via the joint plate 17. .

As shown in FIGS. 1, 2, and 3, the joint plate 17 has approximately the same width as the inside width of the cover material 4 and an outside shape that is approximately the same as the inside shape of the cover material 4, that is, a chevron portion 17a and a hanging portion. 17b, and is a short member with a length of about 120 mm. A plurality of guide grooves 17 are formed in the width direction on the outer surface of the joint plate 17.
c is formed.

The joint plate 17 is arranged between the back surfaces of the end portions of the abutting portions t of the adjacent cover members 4.
With this configuration, the gap between adjacent cover materials 4 is closed by the joint plate 17 from the back side, so that rainwater that enters the gap during rain flows along the guide groove 17c of the joint plate 17 to the parapet frame 1, 1.

As mentioned above, the expansion device B provided between the adjacent structures 1 and 1 including the parapet structure 1
In this case, since the joint plate 17 is arranged on the back side of the end of the two cover materials 4 that are arranged in succession,
Rainwater that has entered between the two cover materials 4 is discharged to the outside by the joint plate 17, and the rainwater is effectively drained between the abutting portions of the cover materials 4.

In addition, when the two parapet frames 1, 1 are displaced in different directions due to uneven settlement, vibration, etc., the joint plate 17 arranged between the back end portions of the two adjacent cover materials 4 is Support member 2,
Since it is only placed on the supporting members 2, it can move freely and is not forced to move due to relative displacement of the supporting members 2, 2. Therefore, there is no fear that the cover material 4 will be damaged or deformed due to the forced movement of the joint plate 17.

Next, similarly, a plurality of draining caps 13 are arranged in series in the longitudinal direction, and a joint plate 17 is arranged between two adjacent draining caps 13 at the abutting portions.

Joint plate 18 is joint plate 1 for cover material.
As in the case of No. 7, the outer shape is substantially the same as the inner shape of the draining cap member 13, and a plurality of guide grooves (not shown) are formed in the width direction on the surface. And, like the above example, it is arranged between the back surfaces of the end portions of the two consecutively installed draining cap members 13. In this case as well, even if rainwater enters through the gaps between the caps, it will be guided by the guide grooves of the joint plate 18 and drained out of the device, so that rain control will be further improved. Also in this case, the joint plate 18 is not limited to one having a guide groove formed on its surface.

Next, the support member joint plate is attached to the Kasagi locking groove 1.
However, since the cap member 13 is locked in this locking groove 12 and the supporting member 2 and the draining cap member 13 are integrally constructed, the joint plate for the cap and the support It can also be used as a joint plate for members. Therefore, it is sufficient to extend the upright portion 18a of the cap joint plate 18 to near the upper end of the locking groove 12. Note that since the airtight material 6 may be continuously provided in the airtight material fitting groove 7 on the upper part of the support member 2, there is no risk of rainwater blowing in from this portion. However, if the draining cap locking groove 12 is formed directly below the airtight material fitting groove 7 as shown in FIG. A gap is formed that allows the entry of Therefore, the locking groove 12
If the draining cap locking groove 12 is extended to the back side of the airtight material fitting groove 7 as shown in FIG.
The joint plate 20 can be disposed in an inclined manner on the back side of the airtight material 6 where the engagement recess 12a and the engagement recess 12a are continuous. In this case, even if rainwater blows up along the joint plate 20, it flows down to the outside of the support member along the slope of the joint plate 20, which further improves rain control.

Note that 16 is a water stop plate, which is made of a flexible member such as rubber or synthetic resin, and has swollen protrusions 16a formed with unevenness on both sides. This expanded protrusion 16a is fitted into the water stop plate fitting groove 10 of the support member 2. The center part of the water stop plate 16 hangs down in a valley shape between the two frames 1, 1, and receives rainwater that has entered at the bottom.

Next, FIG. 5 shows an example where one of the adjacent structures is the parapet structure 1, while the other is the wall structure 1'. The configurations of the Kasagi member 13 and the like are almost the same as the example shown in FIG. 1, so they are designated by the same reference numerals.

A long support member 22 is fixed to the wall frame 1' with screws, and a cover material locking groove 22a is formed in the upper end of the support member 22, and a hook-shaped locking protrusion is formed in the middle part of the support member 22. An edge 22b is formed, and a fitting groove 22c for the water stop plate 16 is formed at the lower end thereof. The end of the holder 3' and the end of its elastic holding member 11 are locked and held by the locking protrusion 22b, and an upright portion 4'a is formed at the end of the cover member 4' on the wall frame side. By locking one end of the cover material 4' to the cover material holder 3' and locking its upright portion 4'a to the locking groove 22a at the upper end of the support member, the two main bodies 1, 1 ' It is constructed between. Note that 23 is a caulking material.

In the above-mentioned expansion device B' as well, the cover material 4', the support member 2, and the draining cap member 13 are arranged in succession along the longitudinal direction of the device B'. A joint plate 17' is arranged at the abutting portion.
This cover material joint plate 17' also has an outer shape that is approximately the same as the inner shape of the cover material 4', and closes the gap between the two cover materials 4' from the back side at the abutting portion in the same manner as shown above. There is.

The support member and its mounting manner are the same as those in the illustrated example.

In this case as well, the joint plate 17' is connected to the supporting member 2.
Since it is only supported above, it can move regardless of the displacement of the parapet frame 1. Therefore, there is no risk of damage or deformation of the cover material 4'.

Furthermore, in the example shown above, the draining cap is constructed separately from the supporting member, but it is also possible to construct them integrally, and it goes without saying that the present invention can be applied to this case as well.

(Effects of the invention) As described above, according to the invention, a joint plate is placed on the back side of the end of the two consecutively installed cover materials, so that rainwater that enters between the two cover materials can be prevented. The water is discharged to the outside by the joint plate, and the rain can be effectively sheltered between the abutting portions of the cover material 4.

In addition, if the two parapet frames are displaced in different directions due to uneven settlement, vibration, etc., the joint plate placed between the back ends of two adjacent cover materials will be placed on the support member. Since it is only placed in place, it can move freely and is not forced to move due to relative displacement of the support member. Therefore, there is no risk that the cover material will be damaged or deformed due to forced movement of the joint plate.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of the expansion joint device according to the present invention, Fig. 2 is a perspective view of an example of the joint plate, Fig. 3 is a sectional view taken along the line X-X of Fig. 1, and Fig. 4 is a longitudinal sectional view of the expansion joint device according to the present invention. FIG. 5 is a partial cross-sectional view of the device showing an example of the device aspect of the joint plate for the support member of the device, and FIG. 5 is a longitudinal cross-sectional view of another embodiment of the expansion joint device of the present invention. Code 1... Parapet frame, 2... Support member,
3... Holder, 4... Cover material, 11... Holding member, 13... Draining cap member, 14... Kasagi holder, 17, 18, 19, 20... Joint plate.

Claims (1)

[Scope of utility model registration request] A long support member fixed to each of two building frames, which are adjacent to each other with a gap and at least one of which is a parapet frame erected at the top edge of the building, and a holder on the support member. a cover material held through the parapet to cover the gap between the two building frames, and a cover material having a side end on the side of the gap between the building frames fixed to an offset position on the side of the gap on the parapet frame. an expander comprising: a draining cap member that is attached to the support member, whose side end opposite to the gap is fixed by being attached to a cap holder fixed on the parapet frame; and a draining cap member that covers the parapet frame; In the joint joint device, a plurality of the above-mentioned cover materials are longitudinally abutted and arranged in a row, a joint plate is arranged on the back side of the two cover materials arranged in a row at the abutting portion, and the joint plate is attached to the support member. An expansion joint device characterized by being placed on the upper end.