JPS5811245A - Expansion joint apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an expansion joint device between adjacent building frames.

When a series of buildings are completed in different construction periods, the separately constructed buildings are inseparable and inseparable from each other, and each building has a K50
It is normal that the am-1100n is installed in a row in the vicinity of the am-1100n with a gap between them. Therefore, in such cases, in order to prevent rainwater from flowing down into the gaps between the ends of adjacent structures, parapet walls, etc., should be erected at the top of the structures. It is necessary to provide an expansion joint device between the 741 bodies. However, on the other hand, such separate buildings vibrate separately and independently during earthquakes, etc., and at that time, the rain skeletons approach or separate in the vertical or lateral force direction, so there is no simple movement between the two parts. If the expansion joint device is simply installed and fixed, the device will not be able to respond sufficiently to the above displacement, so the device will not be damaged or deformed.
#-There is a risk of damage.

In view of the above drawbacks, it is an object of the present invention to propose an expansion joint device that can fully cope with displacements caused by the approach and separation between building blocks, has good rain protection, and is excellent in construction properties.

Embodiments of the present invention will be described below with reference to the drawings.

First, in FIG. 1, reference numerals A1A' are buildings built in close proximity, and 1 is a rising frame such as a parapet wall erected at the top end of these buildings. Note that 1 m is a waterproof sheet, and 1 b is a caulking sealant. An expansion joint device B is attached between the top ends of these rising shells 111, and the rising shell 1.1f
i4(2) Covers the gap α. The expansion joint device B is constructed and held via support members 2.2 fixed to the opposing top ends of each of the upright building frames 1 and 1 and a holding member 11 having elasticity on these support members 2.2. It is composed of a joint holder 3 and a cover material 4 which is fitted onto the holder 3 in a resilient manner. Support member 2
is a long member made of extruded material such as aluminum or its alloy, and has a support edge 2b raised from a substantially horizontal fixed 112 m, and an airtight material 6 is fitted to the upper end of the support edge 2b. A fitting groove 7 is formed, and a locking protrusion 8 of an appropriate length is protruded, and a hook-shaped locking groove 9 is formed at the tip of the locking protrusion 8. In addition, a water drain cap engaging groove 12 is formed downward in the lower part of the fitting groove 7, and a water stop plate fitting groove 1O is formed in the upper fillet at the inner end of the fixed edge 2a. The pair of support members 2.2 having the above configuration are respectively arranged on the upright frame 1.1 so that the locking protrusions 8 face each other, and are connected to anchor plugs buried in the top 1c of the frame 1.1. It is fixed by tightening the screws.

Next, a joint holder 3 is held on each of these supporting members 2. The holder 3 has cover material locking parts 31 bent diagonally downward at both ends, usually 5011xn~60.
This is a short metal member with a diameter of 1.0 mm, and is supported on the support member 2 by an elastic holding member 11 made of an elastic body such as a metal spring material. The elastic holding member 11 has a central protrusion 11m.
Wing piece parts 11b are formed by bending them into a W-shaped cross section on both sides of the joint holder 3, and the central protruding part 11a is formed on the central bottom part 3 of the joint holder 3.
It is integrally fixed to the holder 3 by welding with screws at e. Note that working holes 3b and lie are bored in the wing portions 11b of the holder 3 and the holding member 11, respectively. When installing the joint holder 3 on the support member 2, press the center part downward from above the airtight material 6 at the upper end of the support member 2, pass a jig q such as a screwdriver through the hole 3b, and insert the tip of the joint holder 3 into the support member 2. hole 11
c, the wing portions 11b of the holding member 11 at both ends are expanded at the lower part of the locking protrusion 8 of the support member 2, and the blade portions 11b of the holding member 11 at both ends are expanded to be locked in the locking groove portion 9. The joint holder 3 is mounted and held on the support member 2 in a manner that cannot be removed. Since the holding member 11 is an elastic body, even if the supporting members 2.2 approach or separate from each other vertically or horizontally due to earthquake forces, for example, as shown in FIG. Into holder 3
can be reliably held on the support member 2.

Note that the elastic holding member 11 and the joint holder 3 are not limited to being directly fixed together by screws or welding.

For example, as shown in FIG. 4, a screw 14 inserted from the center of the top 11'a of the central protrusion of the W-shaped elastic holding member 11' is fixed to the screw fixing member 13 through the hole at the top of the elastic holding member 11. The configuration may be such that Further, the elastic holding member 11 and the joint holder 3 do not necessarily need to be constructed as separate bodies as described above. For example, as shown in FIG. 5, a joint holder 3' having locking parts alt at both ends of a plate-shaped metal elastic body, a W-shaped elastic holding member 1,
1' may be integrally formed. Furthermore, the elastic holding member 11' does not have to have a waveform formed in the vertical direction as described above, but may have a waveform formed in the horizontal direction like the elastic holding member 11'' shown in FIG. In this case, the lower part of the elastic holding member 11' is made into a drawn shape, the center part is punched out from both sides alternately up and down to form the insertion hole 11'a, and a bolt or screw (not shown) is inserted into the guide hole 11'a. It is sufficient to insert it and fix it. It is a latching part to the 11"b support member 2.

Next, FIG. 3 shows an example in which the holding member is constructed by combining an inelastic metal and a spring material.
1 piece, connection inserted through the center hole of the engaging member 211 and this engaging member 21m! ff 21b and a spring 21c attached to the lower end of the connecting rod 21b, and is provided with elasticity by the spring 21e. When attaching the holding member 21 to the joint holder 3, the upper end of the connecting rod 21b is loosely fitted into the insertion hole 15 bored in the center of the holder 3 so that it cannot be pulled out, and the holding member 21m is pushed around. It may be engaged with the locking protrusion 8 of the support member 2'. In this case as well, the joint holder 3 is drawn to the holding member 21 by the action of the spring and is securely held on top of the supporting member 2. Able to respond to change. Therefore, it is possible to absorb the displacement of buildings approaching and separating.

In normal cases, it is sufficient for the joint holder 3 having the above structure to be mounted on the support member 2 at intervals of about 1 m along the standing frame 1, and the mounting can be done easily and quickly since no screws or the like are used. I can do it. These joint holders 3
A long cover material 4 is covered on top. Cover material 4
is made of aluminum, its alloy, or various metals, has a slightly roof-shaped center, has approximately the same width as the joint holder 3, and has hanging edges 4a at both ends, with the lower ends of the hanging edges 4a facing inward. The bent locking receiver forms a portion 4b.

When attaching the cover material 4 to the joint holder 3, the cover material 4 may be rolled down from above the joint holder 3. At this time, the hanging edge 4a of the cover material 4 goes down along the locking part 3a of the joint holder 30, and the lower end of the locking part 3a is elastically locked in the part 4b of the locking receiver at the lower end, and the cover material 4 is fitted into the joint holder 3.

Note that if a serrated groove p is formed on the inner side of the lower end of the hanging edge 4a of the cover material 4, the joint holder 30
The lower end corner of the locking portion 3a and the uneven stripes at the lower end of the hanging edge 4a of the cover material 4 contact each other in a bit-by-bit manner, so that
Even if there is some error in the dimensions of both members 3 and 4, they can be locked to the appropriate uneven stripes mentioned above, so the locking can be finely adjusted, good locking can be obtained, and there is no play. This is preferable because it does not cause sticking or the like.

When the expansion joint device B is installed between adjacent building frames as described above, the gap α between the rising frames 1.1 is covered with a cover material, thereby preventing rainwater from flowing down into the gap α. can. Furthermore, since there are no screws or the like to attach the cover material 4 to the top and side surfaces thereof, it is well protected from rain and has a simple yet beautiful appearance. Moreover, since the airtight material 6 fitted into the fitting groove 7 of the support member 2 is in close contact with the back surface of the cover material 4, even if wind and rain blow up from the lower part of the cover material 4, the airtight material 6 protects the frame 1. Blow into the room is prevented. In addition, rainwater does not flow through the joints of the vertically installed cover material 4 or support member 2, but rather leaks into the frame 1.1.
11ifiK may enter the building frame, so a water stop plate 16 is fitted between the support members, and rainwater falls onto this water stop plate 16 to be discharged outside the frame.

The water stop plate 16 is made of a flexible member such as rubber or synthetic resin, and is provided with swollen protrusions 16 & having unevenness formed on both sides. This swollen protrusion 16a is attached to the waterstop plate #11 of the support member 2.
10. The center part of the water stop plate 16 is located on both frames 1.1.
It hangs down in a valley shape in between, and can catch rainwater that has entered the structure at its bottom and guide it out of the structure.

In the example illustrated above, rainwater falls from the side end portions of the cover material 4 onto the top portion 1c of the standing frame 1.

At this time, since a support member is erected in the form of a protective wall at the top end of the frame 1.1, the rain that falls on the above part flows down from the top end on the opposite side from the support member 2. 1. In this case, in order to promote the flow of rainwater, the top part 1eK of the above-mentioned frame 1 is
It is preferable to provide a slope to encourage drainage. However, preferably, as shown in the figure, a drain cap 1 is provided at the bottom of the cover material 4.
7, rainwater can be treated more reliably.

That is, a long draining cap 17 is attached to the standing building frame 1 below the end of the cover material 4, and guides rainwater dripping from the end of the cover material to the inside of the building frame. The drain cap 17 is locked and fixed to the cap holder 18 and the support member 2. First, the Kasagi holder 18 is made of metal such as aluminum or iron, and is normally a short member with a length of 50 nm to 60 nm, like the cover material holder 4. The locking piece 18b is curved at an obtuse angle larger than a right angle, and a protrusion 18e is formed above the intermediate portion of the fixed piece 181. The free end of the horizontal fixing piece 18m is stably superimposed on the fixing edge 21 of the support member 2, and is fastened together with the support member 2 by screws. In this case, since the screw insertion hole 18d of the fixed piece 18a is formed as an elongated hole, it is possible to shift the overlapping state with the fixed edge 2a (upright) depending on the width of the frame 1, and connect the support member 2 and the cap as appropriate. The Kasagi installation width formed by the holder 18 can be adjusted. Therefore, the stand-up frame 1
There is no need to provide a ring holder corresponding to each width of the top of the device. The Mizukiri Kasagi 17 is a long member made of metal such as aluminum, and has an upright part 17m with a bent tip at its narrow end, and a hanging part 1 at the other end.
7b is formed, and a locking portion 17c is bent inside the lower end of this hanging portion 17b.
7m is engaged in the drainage member engagement groove 12 of the support member 2, and the locking receiver of the other hanging portion 17b is locked with the locking piece isb of the Kasagi holder and is overturned by the holder 18. ing. With this configuration, rainwater flowing down from the side edge of the cover material 40 falls on the draining cap 17, further flows along the sloping upper surface, and is guided inside the stand-up frame 1, so that the rise-up frame 1's rain performance will further improve.

In addition, when the standing portion 17a of the water-cutting cap 17 is to be locked in the locking groove 12 of the support member 2, as shown in FIG. Recess 1
2a is preferably formed to ensure secure locking. At this time, if a bent part is formed on the engaging convex part 17'd of the water-cutting cap 17, and an air chamber 20 is formed above the engaging part of the uneven parts iza and i7'a, the above-mentioned engaging Even if rainwater blows in from the air chamber 20, the blowing pressure will be reduced in the air chamber 20.
This is more preferable because rainwater flows down without entering the back side of the draining cap 17'. Furthermore, if uneven stripes are formed on the back surface of the lower end of the hanging portion 17b of the water-cutting cap 17,
This is preferable because even if there is a dimensional error in the cap holder 18 or the drain cap 17, the two can be reliably held in an interlocking state.

Furthermore, in the above, the Kasagi holder 18 is attached to the support member 2.
Although we have shown an example in which the Kasagi holder is attached so that its width can be adjusted freely, the Kasagi holder does not necessarily need to be attached as described above.

For example, as shown in FIG. 3, the horizontal piece 28a of the Kasagi holder 28
A fixed edge fitting groove 29 is formed at the free end of the fitting groove 29.
The fixed edge 2/a of the support member 2' is fitted into the
`` m with the Kasagi holder 28 directly fixed to the standing frame 1 with screws, or further apply a presser 30 from above the fixed edge 2' a and fix with screws from above this presser 30. Alternatively, the support member 2 may be fixed on the upright frame 1 via the Kasagi holder 28. In addition,
The fitting groove 29 may be a dovetail groove.

As mentioned above, the joint holder that locks and fixes the cover material is installed on the support member of the building frame through the elastic holding member, so that the building frame can move closer or further away from each other due to vibrations during an earthquake. However, this fluctuation is absorbed by the elastic portion of the holding member, and the joint holder is always safely held on the supporting member. Moreover, since the joint holder can be locked and fixed without using screws or the like during installation, the expansion-joint device has excellent workability. Furthermore, the cover material is simply covered over the joint holder, and no screw holes or the like are provided on its surface. For this reason, it has good rain protection and a good appearance.

As explained in detail above, the expansion joint device of the present invention can sufficiently cope with displacement in any direction between adjacent building blocks, keep the device stable at all times, and has good rain protection. Moreover, it is very useful because it has excellent workability.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing one embodiment of the expansion joint device according to the present invention, FIG. 2 is a longitudinal cross-sectional view of the device showing an example when a building frame is displaced, and FIG. 3 is a longitudinal cross-sectional view of the expansion joint device according to the present invention. - A vertical sectional view showing another example of the joint device; FIGS. 4, 5, and 6 are explanatory diagrams showing other examples of the joint holder of the expansion joint device. Code A, A'...1 Building B...Expansion-joint device 1...Rising frame 1a...Waterproof sheet lb...Caulking seal material le...Large part 2.2'...・Support members 2'a, 2a...Fixed edge 2b...Support edge code 3.3'...Joint holder 3a...
Locking part 3c... Central bottom part 3b, lie... Working hole 4... Cover material 4a... Hanging edge 4b, 17e.
...The locking receiver is part 6...Airtight material 7...Fitting groove 8...Latching protrusion 9...Latching groove portion 10...Water stop plate fitting groove 11.11', 11", 21@... Holding member 11a...
・Protrusion part 11'a...Skewer top part 11''a...Kushikaki through hole
11b...wing part 11'b...abdomen 11''b・
...Locking part 12...Kasagi engagement groove 12m...Engagement recess 13...Screw fixing member 1411...Screw 15...
Insertion hole 16-...Water stop plate i6m...Swelling part 17.17'...Mizukiri cap 17&...Rising part 17b...Drooping part 17'd...
e Engaging convex part code 18.28... Kasagi holder 18a... Fixing piece 18b... Locking piece 18c... Kasagi holder has protrusion 18d... Screw insertion hole 20... Air chamber 21a...Engaging member 21b...Connecting rod 21c--Spring 28a--Horizontal piece 29...Fitting groove (dovetail groove) 30...Pressing material patent applicant Riken Light Metal Industry Co., Ltd. agent Patent attorney Mikio Segawa

Claims (1)

[Claims] Supporting members are formed at the top ends of the standing frames of adjacent buildings, and joint holders are constructed and held on these supporting members via elastic holding members,
In addition, there is an expansion joint device that removes mold from the cover material that is secured and fixed to this joint holder.