JPH0237924Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The invention is an expansion joint device,
Specifically, it is an expansion that seals spaces between building structures that are closely separated, such as walls and walls, ceilings and ceilings, walls and ceilings, walls and floors, etc., and can respond to the displacement of these structures.・Regarding joint devices, the purpose is to propose an expansion joint device that has a simple structure, is easy to install, and has excellent rain protection.

(Means for achieving the object) In order to achieve the above object, the expansion joint device according to the present invention includes an airtight material retaining groove in one of the building structures that are closely spaced apart from each other. A joint holder having a water stop plate holding groove and a locking part or a lock receiving part for a cover material is attached and fixed, while the other building structure is provided with an airtight material holding groove and a water stop plate holding groove. The plate holding member is mounted and fixed facing the joint holder, and the locking receiving part or the locking part formed on the back side of the cover material covering the space between the two structures is attached to the joint holder above the joint holder. The weather strip is secured to the locking part or the lock receiving part, and a weather strip is held on the back side of both ends of the cover material, and a tapered tongue-shaped edge is formed on the weather strip. The airtight material is held in the airtight material holding grooves formed in the joint holder and the water stop plate holding member, respectively, and the airtight material is formed with a tapered tongue-like edge and comes into contact with the back surface of the cover material. By doing so, a first sealed space is formed between each weather strip on both sides of the cover material and the airtight material, and an elastic water stop plate is provided between the two structures. By holding both ends of the water stop plate in the water stop plate holding grooves of the joint holder and the water stop plate holding member, a second sealed space is created between each of the airtight materials and the water stop plate. It is characterized by forming a part.

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

First, in FIG. 1, symbols a and a' indicate building structures, such as walls and ceilings, and ceilings, which are separated by a distance α. An expansion joint device A is provided on opposite ends of both building structures a, a'.

The expansion joint device A attaches and fixes a joint holder 1 to one building structure a that is close to and separated from each other, while attaching a water stop plate holding member 9 to the other building structure a'. A cover material 2, which is mounted and fixed opposite to the holder 1 and covers the space 〓α between the two structures, is fitted and locked to the joint holder 1, and an airtight material 25 is brought into contact with the back surface of the cover material 2. , and an elastic water stop plate 3 is disposed within α between the two structures,
Both ends 3a, 3a of the water stop plate 3 are brought into contact with the building structures a, a'.

The joint holder 1 is a long or short metal member, and has an airtight material holding groove 26 for holding an airtight material 25 and a locking receiving part 4 for the cover material 2 formed at one end of a fixed piece 1a having a long hole 24. Further, a water stop plate holding groove 5 is formed in the lower part thereof, and a locking uneven strip 6 is carved on the inner wall surface of the locking receiving part 4. The joint holder 1 is fixed to one end of the building structure a along the longitudinal direction by fixing the screw 27 inserted through the long hole 24 of the fixing piece 1a to one of the building structures a. .

At the end of the other building structure a', along the longitudinal direction, a water stop plate holding member 9 is fixed to the building structure a' with screws using a long or short metal member similar to the joint holder 1 described above. has been done. This water stop plate holding member 9 has a building structure on one side of the fixed piece 10.
This is formed by forming a water stop plate holding groove 11 that opens toward the a' plane. In addition, the above-mentioned fixing piece 10 corresponds to the airtight material holding groove 26 of the joint holder 1.
There is also an airtight material holding groove 26' that holds the airtight material 25.
The airtight material 25 is formed with a tapered tongue-like edge 25a.

The water stop plate retaining groove 11 may be formed to protrude above the building structure a', but it may be arranged in the space between the building structures a and a' as shown by the dotted line. It may be.

Next, the cover material 2 is a long member having a width sufficient to cover the opposing ends of the building structures a and a', and a downward dovetail-shaped holding groove 2a is formed in the lower part of both ends. A weather strip 7 is fitted into the groove 2a. This weather strip 7 is also formed with a tapered tongue-like edge 7a. Further, a locking portion 8 is provided protrudingly provided at an offset position on the back side of the cover material 2, and a locking jaw portion 8a is formed at the tip of this locking portion 8.

The cover material 2 has its locking portion 8 connected to the above-mentioned joint.
Fits into the locking receiving part 4 of the holder 1, and the locking jaw part 8a
It is held in the joint holder 1 by being locked by the locking concave and convex strips 6. In this case, joint the tip of the locking part 8 of the cover material 2.
If the cover material 2 is placed on the lock receiving part 4 of the holder 1 and pressed down from the top to the bottom, the tip of the lock part 8 will remain in the optimum locking concave and convex strip 6 in the lock receiving part 4. The installation work is very easy as it snaps into place and locks into place. Both ends of the cover material 2 cover the space 〓α between the two building structures a and a', and the tips of the weather strips 7 are brought into contact with the outer surfaces of the building structures a and a', and the space 〓α is sealed. be done. Further, an airtight material 25 held by the joint holder 1 and the water stop plate holding member 9 is also in contact with the back surface of the cover material 2. The weather strip 7 and the airtight material 25 form a first sealed space S1 that maintains airtightness.

Next, the water stop plate 3 is held in the water stop plate holding grooves 5 and 11 formed oppositely at the ends of the building structures a and a', respectively. This water stop plate 3 is a long plate-like body made of an elastic material such as synthetic rubber or synthetic resin, and both ends thereof are swollen and fit into the water stop plate holding grooves 5 and 11 to be held. By doing so, both ends of the water stop plate 3 are stretched in the space between the building structures a and a'. As a result, a second sealed space S2 is formed between the airtight members 25, 25 and the fastening plate 3.

Since the expansion joint device A is configured as described above, it has a simple structure and is easy to install.In addition, the cover material 2 is fixed only to one building structure a, and the cover material 2 is fixed only to one building structure a, and the other building structure thing
Since it is free with respect to a', adjacent building frames may approach or separate from each other due to vibrations, etc.
Therefore, even if a displacement occurs between the building structures a and a', the cover material 2 can sufficiently respond to this displacement, as shown in FIG. Therefore, the locking portion 8 of the cover material 2 does not disengage from the lock receiving portion 4 of the joint holder 1, and the cover material 2 is always stably held on the joint holder 1.

Further, the tip tongue-like edges 7a, 7a of the weather strips 7, 7 on both sides of the cover material 2 come into contact with the building structures a, a', and the airtight material retaining groove 26 of the joint holder 1 and the stopper. The tongue-like edges 25a, 25a of the airtight materials 25, 25 held in the airtight material holding grooves 26' of the water plate holding member 9, respectively, abut against the back surface of the cover material 2, so that the building structure a,
Even if the cover material 2 moves somewhat due to the relative fluctuation of a', the tongue-shaped edges 7a, 7a, 25a, 25a expand and contract, so that the contact state is maintained well. Also,
Since first sealed spaces S1 and S1 are formed between these abutting parts, double airtightness is maintained, and in addition to good airtightness in normal conditions,
Even if the tip tongues 7a, 7a of the weather strips 7, 7 are separated from the building structures a, a' as shown in FIG.
The sealing by a, 25a is maintained, and the airtight material 25,
Since the airtightness within the second sealed space S2 is maintained between the water stop plate 25 and the water stop plate 3, rainwater is removed from the building structure a,
It prevents infiltration into the space between a' and has excellent rain protection.

In addition, when the joint holder 1 and the water stop plate holding member 9 are short and arranged at a certain interval, there will be parts held and unheld parts at both ends of the water stop plate 3. Therefore, deformation due to sagging occurs in the non-retained portion. Therefore, as shown in FIG. 3, both ends 3a of the water stop plate 3 are held in advance by separate members 3' made of metal or hard synthetic resin that are not easily deformed and have a dovetail or C-shaped cross section, or Alternatively, as shown in FIG. 4, a part of the soft end 3a of the water stop plate 3 is made hard 3b, and both hard and soft parts are integrally formed to make the end 3a itself difficult to deform. It is preferable to hold each end 3a of the water stop plate 3 in the water stop plate holding grooves 11, 11 because the above-mentioned sagging deformation does not occur.

Furthermore, the openings of the water stop plate retaining grooves 5 and 11 are not limited to the example illustrated above, and may face between building structures as shown in FIGS. 5 and 6.

Furthermore, as shown in FIG. 5, the cover material 2' and the locking part 8' are configured as separate bodies, and a locking member 13 formed by bending and forming the locking part 8' on one side is attached to the cover material 2'. It may be fixed below by screws, welding, etc. When screwing, the screwing part 29 of the cover material 2 is made thick, while the locking member 13
The screw fixing part 30 is configured as a concave groove that fits into the thick part 29, and the screw 31 is screwed into an appropriate position in the concave groove on the back side of the locking member 13, so that its tip is connected to the cover material 2. It is preferable to prevent it from coming out on the surface. Note that the locking member 13 may be long or short.

Furthermore, as shown in FIG. 6, while a locking receiving part 4'' is formed in the cover member 2'' with an opening facing downward,
The joint holder 1' may have a locking portion, that is, a locking portion 8'' having a locking jaw portion 8''a that projects upward. In this case as well, the work of attaching the cover material 2'' is no different from the example shown in FIG. 1, and is very easy.

Furthermore, although the water stop plate holding member 33 is shown as having a different shape from the joint holder in the above illustrated example, the water stop plate holding member 33 has the same shape as the joint holder 1 as shown in FIG. , and the water stop plate holding member 33 may be placed opposite to the joint holder 1 that holds the cover material 2. Since the water stop plate holding member 33 is also provided with the water stop plate holding groove 20 in the lower part, the water stop plate 3 can be held together with the joint holder 1. In this case, since the joint holder 1 and the water stop plate holding member 33 have the same shape, the cover material 2 may be held in either direction. In this case, the one that holds the cover material 2 is the joint holder, and the one that holds only the waterstop plate is the holding member.

Next, FIG. 8 shows a case where the a side of one building structure and the b side of the other building structure, which are closely spaced such as a wall and a ceiling or a wall and a floor, form a substantially right angle. This figure shows an example of a provided expansion joint device, and this expansion joint device B includes a joint holder 16 fixed to the outer surface of one building structure a, and this joint holder A cover material 17 that is held by the building structure 17 and covers the space between the building structures a and b;
It is composed of a water stop plate 3 that is loosely stretched inside.

That is, the joint holder 16 is also a long or short metal member, and the lower end of the fixed piece 16a screwed to the building structure a has a locking receiver 19.
On the other hand, an airtight material holding groove 32 for the airtight material 25 is formed at the upper end of the fixed piece 16a. The locking receiving part 19 projects into the space between the building structures a and b and has an upward opening, while a dovetail-shaped water stop plate holding groove 20 is formed at the lower part.
is formed. Furthermore, locking grooves 6 are carved on the inner wall surface on the outside or inside of the locking receiving portion 19 .

Next, the cover material 17 is bent according to the angle formed by the surfaces of the building structures a and b, and the fitting grooves 17 at both ends thereof are bent.
A weather strip 7 is fitted to a.
Further, a locking portion 23 is protruded from the back side of the bent portion, and a locking jaw portion 23a is formed at the tip thereof. Since the locking portion 23 can be held by fitting and locking the locking portion 23 into the optimal locking grooves 6 of the locking receiving portion 19 of the joint holder 16, the installation work is very easy.

Next, a water stop plate holding member 9 is fixed to the end of the building structure b along its longitudinal direction. It is sufficient for this waterstop plate holding member 9 to have a waterstop plate holding groove 11 and an airtight material holding groove 26' of the airtight material 25 formed on one side of the fixed piece 10, as shown in FIG.

Water stop plate retaining grooves 20 and 11 are provided in building structures a and b.
are formed facing each other, and these water stop plate holding grooves 20, 11
A water stop plate 3 is held in the holder.

Note that the water stop plate holding member 9 may be fixed to the building structure a, and the joint holder 16 may be fixed to the other building structure b. In this case, the joint holder 16 may have the same construction as shown in the example of FIG.

Further, the cover material 17 is not necessarily limited to being formed integrally with the locking portion 23. As shown in FIG. 9, a locking member 13' having a locking portion 23 bent on one side may be fixed below the cover member 17'.

Furthermore, regarding the arrangement of the locking portion and the locking receiving portion, as shown in FIG. It may also be configured such that it protrudes.

(Effects of the invention) As explained in detail above, according to the expansion joint device of the present invention, the cover material can be installed by simply fitting and locking it into the joint holder, so the installation work is extremely easy. It's easy.

In addition, since the cover material is fixed only to one building structure and is free from the other building structure, adjacent building frames may approach or separate from each other due to vibrations, etc., which may cause the building structure to Even if a displacement occurs between the objects, the covering material can sufficiently respond to this displacement. Therefore, the cover material and the joint holder are never disengaged, and the cover material is always stably held on the joint holder.

Furthermore, a first sealed space formed by a weather strip and an airtight material, an airtight material and a water stop plate are provided to cover the space between the two structures and the cover material. With this structure, even if the building structure is displaced, one of the weather strips will not touch the building structure. Even if the airtight state of the first sealed space is broken due to separation from the building structure, the airtightness is maintained by the second sealed space, ensuring that rainwater does not infiltrate into the space between the building structures. It is possible to obtain the remarkable effects of preventing rain and improving rain control.

Moreover, according to the present invention, the above-mentioned effects of ease of work of the cover material, responsiveness to displacement between building structures, and double airtightness due to the weather strip and airtight material can be obtained with a simple structure. Therefore, its practical effect is very large.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view showing an example in which the expansion joint device according to the present invention is installed in building structures that are spaced apart in a flush state. 3 and 4 are partial sectional views of other examples of the water stop plate holding structure, and FIGS. 5 and 6 are sectional views of the locking portion and locking receiver of the above device. Partial sectional view of another example of the section, No. 7
The figure is a cross-sectional view of another example of the above-mentioned expansion joint device, and FIG. FIGS. 9 and 10 are cross-sectional views of other examples of the locking portion and locking receiving portion of the expansion joint device of FIG. 7; FIG. Symbols A, B...Expansion joint device, 1, 16...Joint holder, 2,
17... Cover material, 3... Water stop plate, 4, 19...
Locking receiving part, 5, 20... Water stop plate holding groove, 7... Weather strip, 8, 23... Locking part, 9, 1
6...Water stop plate holding member, 25...Airtight material, 26,
26'...Airtight material holding groove.

Claims (1)

[Claims for Utility Model Registration] One of the building structures that are close to each other and separated from each other is provided with an airtight material holding groove, a water stop plate holding groove, and a locking part or locking receiving part for the cover material. While attaching and fixing the joint holder, attaching and fixing a water stop plate holding member having an airtight material holding groove and a water stop plate holding groove to the other building structure facing the joint holder, and fixing the joint holder to the other building structure. At the same time as locking the locking part or locking part formed on the back side of the cover material that covers the gap between the two ends to the locking part or locking part of the joint holder, respectively, An airtight material that holds a weather strip on the back side, contacts the building structure with a tapered tongue-shaped edge formed on the weather strip, and is formed on the joint holder and the water stop plate holding member, respectively. By holding the airtight material in the holding groove and forming a tapered tongue-like edge on the airtight material and bringing it into contact with the back surface of the cover material, the weather strips on both sides of the cover material are connected to each other. A first sealed space is formed between the two structures, and an elastic water stop plate is arranged between the two structures, and both ends of the water stop plate are connected to the joint holder and the water stop plate holding member. An expansion joint device characterized in that a second sealed space is formed between each of the airtight materials and the water stop plate by holding the water stop plate in each of the water stop plate holding grooves.