JPH0721892U - Joint support structure - Google Patents

Abstract

(57) [Summary] [Purpose] The fitting of the joint material cap and its legs is carried out by horizontal movement to improve the workability by eliminating the floating joint material (cap). [Structure] The cap 3 of the joint material 1 is provided with a rib 3b, and the leg 4 of the cap 3 is provided with a fitting portion 4a with a groove 4b. The ribs 3b have an arrowhead shape, and the ribs 3b on both sides of the cap 3 are provided.
The fitting parts 4a of the legs 4 on the cap 3
From the upper surface, the fitting portions 4a are sandwiched between the hands and pushed by fingers to fit the ribs 3b into the grooves 4b. This operation is fitting by horizontal movement, so the cap 3 (joint material 1) does not float up,
There is little risk of height adjustment.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a support structure for a joint concrete when temporarily holding a joint concrete of a holding concrete on the upper surface of a slab such as a rooftop, and more particularly to a joint structure of the joint material or its cap and its leg.

[0002]

[Technical background]

 The above-mentioned joint material is interposed to absorb the expansion and contraction of the holding concrete, and is temporarily fixed before placing the concrete. As the temporary fixing, for example, as shown in FIG. 17, the base 2 is fixed to the upper surface of the slab, the joint material 1 is fitted on the base 2, and both side surfaces of the cap 3 of the joint material 1 are supported by the legs 4. .

[0003]

[Problems to be solved by the device]

 The conventional fitting of the leg 4 and the cap 3 in the temporary fixing is to form a groove 5 having a T-shaped cross section in the longitudinal direction of the side surface of the cap 3 as shown in FIG. A rib 6 having a character shape is provided, and the rib 6 is fitted into the groove 5 (see Japanese Utility Model Laid-Open No. 61-117826).

In this fitting structure, the opening of the groove 5 is narrow, the flange 6a of the rib 6 is also large, and no modification is made to the groove opening edge and the rib flange 6a. The rib 6 cannot be fitted. For this reason, as shown by the arrow in the figure, the rib 6 is inserted (fitted) from one end of the cap 3 (groove 5) and moved in the groove 5 to a desired position (mounting position of the leg 4). This work is very troublesome, and the joint material 1 (cap 3) may move up, down, left, and right when the leg 4 (rib 6) moves, and if it moves, the joint material 1 is reset (reconstructed). There must be.

There is also a fitting structure shown in FIGS. 18 and 19 (see Japanese Utility Model Laid-Open No. 53-51611, Japanese Utility Model Publication 3-12099, etc.). However, since the fitting direction of the rib 6 to the groove 5 is the up-down direction in this product, the joint material 1 (cap 3) may move when it is fitted, and the height may shift. Workability is poor because it is necessary to firmly hold the joint material 1 by hand.

On the other hand, there is a technique in which the groove 5 or the rib 6 is formed in the joint material 1 without providing the cap 3 and the leg 4 is fitted into the groove 5 and the rib 6 to support the joint material 1 by the leg 4. However, the fitting of the joint material 1 and the leg 4 in this technique is the same as the structure of the rib 6 and the groove 5 of the cap 3, the leg 4, and therefore, there is a similar problem.

Under the above circumstances, it is an object of the present invention to make it easy to attach a leg to a joint material or a cap and improve workability.

[0008]

[Means for Solving the Problems]

 In order to solve the above problems, in this invention, the joint material support structure in which the joint material or the leg of the cap is supported by the fitting of the rib and the groove is configured to have the following points. is there.

A vertical flange is provided at the tip edge of the rib, and an inward vertical flange is provided at the groove opening edge, and at least one of the mutually facing surfaces of the flange is a vertically inclined surface. .

In this configuration, the fitting portion of the leg may have a width to which a finger is applied.

[0011]

[Action]

 In the support structure according to the present invention having such a configuration, the fitting portions of the legs are respectively applied to the ribs or grooves on both side surfaces of the joint material or the cap, and both fitting portions are manually touched from the upper surface of the joint material or the cap. If you push it with your finger with 3, the rib will go into the groove along the slope of the flange facing surface, the fitting part and the rib will be integrated, and the joint material or cap will be supported by the legs.

[0012]

【effect】

 Since the present invention is configured as described above and can perform the above-mentioned action, it exerts the following effects.

Since the legs can be fitted to the joint material or the cap by pushing in the horizontal direction with the fingers of the hand, the joint material (cap) is not subjected to the vertical force as much as possible, and the joint material has a high height. Less likely to slip. Therefore, workability is improved.

[0014]

【Example】

 The embodiment shown in FIGS. 1 and 2 includes a joint material 1, a fixed base 2, a cap 3, a support leg 4 and a pin 7.

The fixed base 2 is formed of an elastic material such as styrofoam, and the joint material 1 is sandwiched between the bottom plate 2a that is attached to the heat insulation layer A via an adhesive tape or the like. A pair of opposing holding plates 2b for holding are provided upright.

The cap 3 has a U-shaped cross section and is formed of a flexible resin, and covers the upper end portion of the joint material 1. The cap 3 is provided with ribs 3b for detachably attaching the legs 4 to the lower ends of both side walls 3a. The rib 3b has a vertical flange 3c at its tip, and the outer surface of the flange 3c is an inclined surface 3d. The inclined surface 3d may be a curved surface instead of a flat surface.

The leg 4 is an integrally molded product of elastic resin, has a fitting portion 4a having a recess (groove 4b) formed at the upper end to engage with the rib 3a, and has a pin at the lower end fixed portion 4e. Insert 7 and fix to heat insulation layer A. By taking this fixed position arbitrarily, it corresponds to the height of the cap 3. The opening edge of the groove 4b is a flange 4c facing inward. When the fitting portion 4a is pressed against the rib 3b and pushed in, the flange 4c slides its tip edge against the inclined surface 3d of the rib 3b. It advances while expanding and is locked to the flange 3c.

This embodiment is configured as described above, and the height of the upper surface of the cap 3 is adjusted by inserting the joint material 1 into the fixed base 2. The height can be adjusted also by the degree of covering the joint material 1 of the cap 3 (see FIG. 3). After adjusting the height, apply the fitting portions 4a of the legs 4 to the ribs 3a on both sides of the cap 3, press the fingers to fit the ribs 3b into the grooves 4b, and then fix the legs 4 with the pins 7. The material 1 is in a temporarily fixed state with its upper and lower parts supported. In this state, presser concrete B is placed. Instead of the pin 7, an adhesive tape such as butyl tape may be adopted.

The fixed base 2 is attached with an adhesive tape as in the conventional case, but it may be screwed together with the attachment or alone. Further, as shown in FIG. 3, it may be integrated with the joint material 1, or may be integrally formed with the heat insulating layer A as shown in FIGS. 4 and 5.

As shown in FIG. 6, the fitting portion 4a of the leg 4 and the connecting portion c of the fixing portion 4e are thin so that the fitting portion 4a and the fixing portion 4e can be bent. Further, the protruding length t on both sides of the fitting portion 4a from the connecting portion c is such that a finger can be applied. With this configuration, the forefinger and the middle finger can be applied to the protruding side part with the leg 4 interposed therebetween, that is, the fitting part 4a can be ensured to have a sufficient width to fit the fitting part 4a. It is easy to fit the rib to the rib 3b. In particular, it is effective when the fitting portion 4a is reversed as shown in FIG. Further, as shown in both figures, the pin 7 can be provided on the fixing portion 4e via a string 7a, and an adhesive tape 8 such as butyl tape can be provided on the back surface of the fixing portion 4e.

Although the heat insulating method in which the heat insulating layer A is formed is used in the embodiment, for example, as shown in FIG. 8, the fixing portion 4e may be directly fixed to the waterproof layer D or the leveling mortar layer. In this case, since the pin 7 cannot be used, it may be fixed with an adhesive tape or the like, or with a mortar a as shown in the figure. At this time, the fixing portion 4e may be a round bar or the like as shown by the chain line in the figure. Further, as shown in the figure, the fixed base 2 is not always necessary, and the joint material 1 can be integrally formed with the heat insulating layer A as shown in FIG.

As the fitting structure of the cap 3 and the leg 4, various structures shown in FIGS. 10 to 13 can be adopted. In the case of FIG. 12, since the facing surface of the lower rib 3b is the inclined surface 3d, the upper flange 4c of the fitting portion 4b is hooked on the upper rib 3b, and then the lower flange 4c is moved to the lower rib. Push in 3b horizontally to fit. In the case of FIG. 13, since the facing surface of the upper rib 3b is the inclined surface 3d, the action is opposite to that of FIG. Further, as shown in FIGS. 14 and 15, the cap 3 side may be a groove 3b ′ and the leg 4 side may be a rib 4b ′, and the tip edge of the flange 4c of the grooves 4b and 3b ′ may also be an inclined surface 4d. obtain. The inclined surfaces 3d and 4d may have either the rib 3b or the flanges 3c and 4c of the groove 4b.

In each of the above-described embodiments, the joint material 1 is supported by the legs 4 via the caps 4. However, as shown in FIG. 16, the invention is also applicable to a structure in which the joint material 1 is directly supported by the legs 4. Can be adopted. In this case, the height of the joint material 1 is adjusted by the degree of fitting of the joint material 1 to the base 2, and the joint material 1 may be a metal pultruded product such as aluminum or a resin molded product.

As shown by the chain line in FIG. 3, it is preferable that the cap 3 or the top of the joint material 1 has a shape that is equal to or more than the rib 3b. With this configuration, when the joint material 1 is crossed and constructed, the abutting joint material 1 or the top end surface of the cap 3 comes into contact with the protruding portion 3e, and no gap is formed on the upper surface of the abutting portion.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of an embodiment.

FIG. 2 is a cutaway front view of the same embodiment.

FIG. 3 is a cutaway front view of another embodiment.

FIG. 4 is a cutaway front view of another embodiment.

FIG. 5 is a cutaway front view of another embodiment.

FIG. 6 is a perspective view of another example of the leg.

FIG. 7 is a perspective view of another example of leg.

FIG. 8 is a cutaway front view of another embodiment.

FIG. 9 is a cutaway front view of another embodiment.

FIG. 10 is a cutaway front view of a main part of another embodiment.

FIG. 11 is a cutaway front view of a main part of another embodiment.

FIG. 12 is a cutaway front view of a main part of another embodiment.

FIG. 13 is a cutaway front view of a main part of another embodiment.

FIG. 14 is a cutaway front view of a main part of another embodiment.

FIG. 15 is a cutaway front view of a main part of another embodiment.

FIG. 16 is a cutaway front view of another embodiment.

FIG. 17A is a perspective view of a main part of a conventional example, and b is a cross-sectional view of the main part.

FIG. 18 is a sectional view of a main part of a conventional example.

FIG. 19 is a sectional view of a main part of a conventional example.

[Explanation of symbols]

 1 joint material 2 base 3 cap 3a side wall 3b rib 3c flange 3d inclined surface 4 leg 4a fitting portion 4b groove (recess) 4c flange 4d inclined surface 7 pin

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Ryozo Sawanishi 24-10 Eki-cho, Suita-shi Yamade Co., Ltd. (72) Takashi Inoue 24-10 Eki-machi Suita-shi Yamade Co., Ltd.

Claims (3)

[Scope of utility model registration request] 1. A presser concrete B joint material (1) is fixed to the upper surface of a slab such as a rooftop, and a cap (3) is provided above the joint material (1).
A support structure of joint material in which the cap 3 is covered with a leg 4 fixed to the upper surface of the slab, and
It is characterized by having done. The cap 3 has longitudinal ribs 3b or grooves 3b 'on its side surface. The leg 4 has the rib 3b or the groove 3b 'on the upper end thereof.
It has a fitting portion 4a formed with a groove 4b or a rib 4b 'in which is fitted, and a fixing portion 4e fixed to the slab at the lower end. Vertical ribs 3c, 4c are provided at the tip edges of the ribs 3b, 4b ', and vertical flanges 3c, 4c directed inward are provided at the opening edges of the grooves 4b, 3b'. At least one of the facing surfaces is a vertically inclined surface 3d, 4d. 2. A base 2 is fixed to an upper surface of a slab such as a roof, and a holding material 1 for concrete B is fitted to the base 2 so as to be vertically movable. A support structure for a supported joint material,
It is characterized by having achieved the following points. The joint material 1 has longitudinal ribs 3b or grooves 3b 'on its side surface. The leg 4 has the rib 3b or the groove 3b 'on the upper end thereof.
It has a fitting portion 4a in which a groove 4b or a rib 4b 'that fits in the slab is formed, and a fixing portion 4e fixed to the slab is provided at the lower end. Vertical ribs 3c, 4c are provided on the tip edges of the ribs 3b, 4b ', and vertical flanges 4c, 3c directed inward are provided on the opening edges of the grooves 4b, 3b', respectively. At least one of the facing surfaces is a vertically inclined surface 3d, 4d. 3. The joint structure support structure according to claim 1 or 2, wherein the fitting portion 4a of the leg 4 has a width to which a finger is applied.