JPH0315685Y2 - - Google Patents

Description

[Detailed description of the invention] The invention is an expansion joint, more specifically, an expansion joint that protects and reinforces the ends of building frames facing each other with a gap, and attaches a cover material to cover the gap. Regarding joints.

In general, an expansion joint is constructed by attaching a metal support member to the ends of building frames facing each other with a gap in between, and attaching a cover material to the support member.The cover material closes the gap between the opposing building frames. Although it is covered, the building frame facing it vibrates,
Since their relative positions change due to uneven settlement, etc., the cover material is also configured to respond to this displacement. However, when the opposing frame is suddenly displaced, a considerable force is applied to the cover material, and the external force at that time is also applied to the support member and the building frame to which the support member is attached. Therefore, the building frame itself is required to have considerable strength. In contrast, recently, structural materials such as ALC frames, which are lightweight, have good insulation properties, and are easy to process, are increasingly being used for the wall frames of buildings facing each other. Although this type of structural material has the above-mentioned advantages, it also has the disadvantage of being somewhat inferior in strength. Therefore, when constructing an expansion joint, it is necessary to bolt the supporting member directly to the end of the structural material to strengthen it. When the building frame is fastened and fixed, the stress from the external force applied when the building frame changes as described above is concentrated on the fastened parts, which may cause damage to the building frame.
There is a risk that the support strength of the cover material may deteriorate.

The present invention solves the above-mentioned drawbacks and provides an expansion joint that can stably and firmly attach the support member for the covering material while protecting the edges of the building frame, and that is easy to install and has excellent workability. The purpose is to make suggestions.

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

In the figure, numerals 1 and 1 indicate the building frame. The building frames 1, 1 face each other, for example, like walls and floors, and have a certain gap S between them, and are each made of ALC boards (lightweight cellular concrete). In addition, building framework 1, 1
There is a through hole 1 in the thickness direction at a position far from the end face of
2 is formed, and a screw receiving member 13 is fitted into the through hole 12.

An expansion joint A that covers the gap S from the inside and outside is provided between the bodies 1, 1.
This expansion joint A connects the cover materials 2 and 3 to the opposite ends 1a and 1 of the building frames 1 and 1, respectively.
It is constructed by being provided on reinforcing support members 4 and 5 which are clamped and fixed at regular intervals along the longitudinal direction of la.

Reference numerals 4 and 5 denote long metal members provided along the entire length of the inner and outer surfaces of the building frames 1 and 1, with a convex portion 14 at one end of the reinforcing support member 4 and a locking groove on the reinforcing support member 5. 15, 15 are formed. These reinforcing support members 4 and 5 are secured by screws 17 and 17 at a position far from the end surface of the end of the body.
It is screwed into the screw receiving member 13 in the through hole 12 of the building frame 1, 1, so that the end of the building frame 1, 1 is firmly held and reinforced by the reinforcing support members 4, 5. Ru. In addition, the reinforcing support members 4, 5
may be configured to be fastened to the frames 1, 1 with one bolt and nut.

Next, the support members 4 and 5 are covered with cover materials 2 and 3.
is arranged to cover the gap S between the building frames 1 and 1 from inside and outside. First, the indoor cover material 2 is made of a long metal shape or the like, and is screwed onto the screw receiving convex portion 14 of the reinforcing support member 4 of one building frame 1. Note that there is an airtight material 1 on both ends of the cover materials 2 and 3.
8 and 18 are fitted, and these airtight materials 18 and 18 are in contact with the indoor surfaces of both frames 1 and 1. Moreover, the airtight material 19 is also filled in the gap S between the skeletons.
Even if the relative positions of the two frames 1, 1 change, the cover material 2 is fixed to only one frame 1, so
It can respond to body displacement. Next, the outdoor cover material 3 is attached to cover material fixing members 6, 6, which are screwed onto the reinforcing support members 5 of both building frames 1, 1, via spring members 7 and the like. The cover material fixing members 6, 6 each form a locking portion 21 and a water stop plate fitting groove 22 on the side of the body gap S, and correspond to the locking grooves 15, 15 of the reinforcing support member 5 on the opposite side. It is a long member formed with locking projections 23, 23, and the locking projections 23, 23 are inserted into the locking groove 1 through spring clips 24, 24, as shown in FIG.
5 and 15, it is fixed to the reinforcing support member 5. Therefore, when attaching the cover material fixing member 6, it does not take time and effort to tighten screws or the like. By fixing the cover material fixing members 6, 6 as described above, the locking parts 21, 21 and the waterstop plate fitting grooves 22, 22 are connected to each other with the gap S in between.
are arranged facing each other. This fitting groove 2
A water stop plate 25 made of a flexible material such as synthetic resin or synthetic rubber is fitted onto 2 and 22, and is loosely stretched across the gap S. Further, the locking parts 21, 21 of the cover material fixing members 6, 6 are formed with sawtooth locking surfaces, and the spring member 7 is locked to the locking parts 21, 21. A locking portion 21' formed on the back side of the cover material 3 is locked to.

The spring member 7 is short and has locking receivers 7a, 7b, 7b formed at the center and both ends by processing a spring material. By locking the locking parts 21, 21 and locking the central locking receiving part 7a and the locking part 21' of the cover material 3, the cover material 3 is locked and fixed to the fixing members 6, 6. I'm letting you do it. Spring member 7
Due to the elasticity of the cover material 5, even if the skeletons 1, 1 fluctuate, the cover material 5 can accommodate this fluctuation. However, the structure in which the cover material is engaged by the spring member 7 is not limited to the above example. For example, as shown in FIG. 4a, the spring member 7 may be screwed to the cover material 5, or as shown in FIG. The locking portions 7c, 7c may be fixed to locking portions 21a, 21a formed on the cover material fixing members 6, 6, or other configurations may be used.
Note that both ends of the cover material fixing member 6 are caulked.

According to the expansion joint above,
Since the ends of the frames 1, 1 are sandwiched and reinforced by the reinforcing support members 4, 5, large external forces that may cause deformation of the ends of the frames 1, 1 due to vibrations, uneven settlement, etc. Even if the expansion joint is expanded, there is no risk of damage to these frames 1, 1 and impairing the function of the expansion joint. In addition, the reinforcing support members 4 and 5
Since it is only held between the inner and outer surfaces of the building frames 1, 1, it is not affected by the thickness of the building frames 1, 1, and can be used with any thickness of the frames 1, 1. can.

Next, in FIG. 2, the main body 1 is installed facing each other at right angles to one side of the main body 1', and both the main bodies 1, 1'
This shows an example in which expansion joints B are arranged at both corner parts of the gap S, and this expansion joint B is provided with cover members 2' and 3' covering the gap S at the both corner parts. The cover material 2' has a reinforcing support member 4' provided on the frame 1 and a reinforcing support member 8 provided on the frame 1' with a cover material fastening member 39 disposed at intervals. On the other hand, the cover material 3' is fixed to the fixing member 6 for the cover material provided on the reinforcing support member 5 on the frame body 1 and the cover material provided on the reinforcing support member 5' on the frame body 1'. It is secured to the fixing member 6' via a spring member 7.

The building frames 1 and 1' face each other at right angles, for example, like walls, with a certain gap S between them, and are each made of ALC plates (lightweight cellular concrete). Then, the cover materials 2' and 3' of the body 1' are located far from the end face of the body 1.
A through hole 12 is formed in the thickness direction at each mounting position, and a screw receiving member 13 is fitted into the through hole 12.

The mounting configuration of the reinforcing support member 5 and the cover material fixing member 6 on the frame 1 is the same as the example shown in FIG. 1. The reinforcing support member 4' in the frame 1 is an elongated metal member having a locking part 30 at the end on the gap S side and a locking member receiving protrusion 31 on the other surface. is in contact with one side of 1,
The reinforcing support member 5 that is in contact with the other surface is screwed onto the screw receiving member 13 of the building frame 1 by screws 17, 17. Further, the reinforcing support member 8 in the frame 1' is also a long metal member, and the end on the side of the frame gap S is bent into a U shape to form a locking part 32, and the opposite end is engaged. It is formed with a protrusion 33 and is screwed into the screw receiving member 13 of the building skeleton 1' by screws 17, 17 together with the screw receiver 34 which is in contact with the inner surface of the building skeleton 1' and the outer surface. There is. As a result, the frame 1' is held between the reinforcing support member 8 and the screw receiver 34 via the screw receiver 13, and is reinforced and protected.
2 are formed facing each other. On the other hand, the other reinforcing support member 5' in the frame 1' has substantially the same configuration as the reinforcing support member 5 in the frame 1, and the locking portion 21 is formed in a bent manner. Also, like the reinforcing support member 8, it is screwed to the screw receiver member 13 of the building frame 1' by screws 17, 17 together with the screw receiver 34 that is in contact with the inner surface of the building frame 1' and the outer surface. There is. As a result, the frame 1' is held between the reinforcing support member 5' and the screw receiver 34 via the screw receiver 13, and is reinforced and protected. The attachment structure of the cover material fixing member 6' to the reinforcing support member 5' is also the same as the attachment structure of the reinforcing support member 5 and the cover material fixing member 6 in the frame 1.

Next, the cover material 2' is bent at a substantially right angle corresponding to the facing state of the frames 1 and 1', and airtight materials 18 and 18 are fitted at both ends, and the An engaging protrusion 35 is formed at the end, and locking parts 36, 3 are formed at the bent part and the end on the frame 1 side.
7 is formed. And the cover material 2' is
A W-shaped spring member 39 is fixed to a short metal engagement plate 38 by riveting or the like, and is attached to the reinforcing support members 4' and 8 via a cover attachment member 9. This cover material locking member 9 connects both ends of the spring member 39 to the locking portions 3 of the reinforcing support members 4' and 8.
0 and 32, and both ends of the engagement plate 38 are engaged with the engagement portions 36 and 37 of the cover material 2'.
Since the cover material 2' is attached to the reinforcing support members 4' and 8 via the elastic spring member 39,
It is in a state where it is pulled towards the frame, and can fully respond to changes in the frame. On the other hand, the cover material 3' is also formed at a substantially right angle corresponding to the facing state of the frames 1 and 1', and the cover material 3' is formed through the spring member 7 in the same manner as the cover material 3 shown in FIG. It is fastened to the fixing members 6, 6'.

In this way, even when the frames 1 and 1' face each other at right angles, the ends of one frame 1 are sandwiched and reinforced by the reinforcing support members 4 and 5, so vibrations, uneven settlement, etc. Therefore, even if a large force that causes deformation is applied to the end of the frame 1, there is no risk of the frame 1 being damaged and the function of the expansion joint being impaired.

As explained in detail above, the expansion joint according to the present invention is located at a position far from the end face of at least one of the lightweight aerated concrete building frames of the building frames facing each other with a gap between them. A pair of elongated reinforcing and supporting members are arranged along the entire length of the outer surface, and the reinforcing and supporting members are screwed into screw receiving members provided through the building frame to secure the ends of the one building frame. The parts are clamped and fixed, and a cover member is attached on the reinforcing support member to cover the space between the frames.

In this way, the cover member is attached to the reinforcing support member, but since this reinforcing support member is arranged along the inner and outer surfaces of the building frame and is not related to the thickness of the building frame, the cover member is always attached to the building frame. It can be provided according to the thickness of.

Further, since the reinforcing support members are arranged on the inner and outer surfaces of the lightweight aerated concrete building frame at a position far from the end face, concentration of stress can be avoided when the building frame moves. Similarly, each of the above-mentioned reinforcing support members is arranged along the entire length of the inner and outer surfaces of the building frame made of lightweight aerated concrete, and is screwed into a screw receiving member provided penetrating through the building frame. Since the building frame is fixed, the building frame is strongly protected by being held between the reinforcing and supporting members, and the reinforcing effect is high. Therefore, the reinforcing support member that supports the cover member while protecting the end portion of the building frame can be stably and firmly attached, and the durability of the expansion joint can be improved.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an example of the expansion joint according to the present invention, FIG. 2 is a sectional view of another example of the expansion joint, and FIG.
It is an enlarged view of a part of the figure, and FIGS. 4a and 4b are cross-sectional views showing an example of a structure in which a cover material is fastened by a spring member. Code A, B...expansion joint,
1... Building frame, 2, 3... Cover material, 4, 5
...Reinforcement support member, 6...Fixing member for cover material.

Claims (1)

[Scope of utility model registration request] A pair of elongated reinforcing support members are arranged along the entire length of the inner and outer surfaces at a position far from the end face of the end of at least one of the building frames made of lightweight aerated concrete that faces each other with a gap between them, The reinforcing support member is screwed onto a screw receiving member provided penetrating through the building frame to clamp and fix the end of the one building frame, and the reinforcing support member is mounted on the reinforcing support member between the frames. An expansion joint characterized in that a cover member is attached to cover the expansion joint.