JP3406028B2 - Joint material support structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure supporting structure for temporarily holding joint material of holding concrete provided on the upper surface of a slab such as a rooftop, and a joint material cap and a supporting member (leg). It is a thing.

[0002]

2. Description of the Related Art The top surface of a slab such as a rooftop is waterproofed or provided with a heat insulating layer, and then a holding concrete is poured. At this time, the top surface of the holding concrete should be sloped so that rainwater can be drained smoothly. For this reason, it is necessary to provide a slope on the upper surface of the joint material of the holding concrete.

As a means for providing a gradient on the upper surface of the joint material, the applicant of the present application discloses in Japanese Patent Application No. 4-58126.
As shown in FIG. 21, the base 2 of the joint material 1 for the holding concrete B is fixed to the upper surface of the slab (heat insulating layer A) such as a roof,
A joint material in which a lower portion of the joint material 1 is vertically movably fitted in the base 2 and a cap 3 is covered on the upper portion of the joint material 1, and the cap 3 is supported on the upper surface of the heat insulating layer A by legs 4 fixed. As shown in FIG. 22 and the support structure of FIG. 22, the base 2 is not provided or the joint material 1 and the base 2 are integrated, and the joint material 1 is fixed to the upper surface of the slab (heat insulating layer A) with butyl tape or the like. And its joint material 1
It is proposed that the cap 3 is covered on the upper part so as to be movable in the vertical direction.

As shown in both figures, this technique moves the cap 3 or the joint material 1 up and down to adjust the height of the upper surface of the cap 3 so as to be flush with the upper surface of the concrete B. 3, the heat insulating layer A or the base 2
It is fitted and fixed on the upper end of the leg 4 which is pinned. At this time, a change in the height of the cap 3 can be dealt with by adjusting the inclination of the leg 4, that is, adjusting the pinning position at the lower end of the leg 4.

In this adjustment, the fixing portion 7 moves toward and away from the joint material 1 depending on the height of the cap 3, and when approaching, the leg 4 becomes steep.
In some cases, the support of the cap 3 is not stable, the joint material 1 easily falls, and the fixing portion 7 does not reach the heat insulating layer A. on the other hand,
If they are separated from each other, the leg 4 may be caught on the foot when the joint material 1 is installed or after the joint material 1 is installed, or when the wire mesh is laid in the presser concrete B, 4 hits the wire mesh, which hinders its installation.

[0006] Further, there is also one in which the joint material 1 is directly supported by the legs 4 without providing the cap 3, but there is a problem similar to the support through the cap 3.

Therefore, an object of the present invention is to enable effective support by the legs even if the height of the cap or the joint material changes.

[0008]

In order to solve the above problems, according to the present invention, the joint structure 1 supporting structure in which the cap 3 or the joint member 1 shown in FIGS. In the above, the configuration has the following points and / or.

The cap or joint material has longitudinal ribs or grooves on its side surface in a plurality of vertical steps.

The leg has a fitting portion that fits in the rib or groove at the upper end, and a fixing portion that is fixed to the slab at the lower end.

The cap or joint material has longitudinal ribs or grooves on its side surface.

The leg has a fitting portion that fits in the rib or groove at the upper end, and has a fixing portion that is fixed to the slab at the lower end.

The fitting portion is flexibly connected to the leg, and the connection point between the fitting portion and the leg is displaced upward or downward from the vertical center of the fitting portion.

In the case where the above-mentioned holding concrete is placed through a heat insulating layer, the fixing portion is provided with a fixing pin through a flexible connecting strip such as a string, and the fixing pin is heat-insulated. It can be inserted in layers.

[0015]

In the present invention thus constituted, as in the conventional case, by moving the joint material up and down with respect to the base or by moving the cap up and down with respect to the joint material,
Adjust so that the joint material or the top surface of the cap is flush with the top surface of the holding concrete.

After that, the fitting portion of the leg is fitted into the rib or groove, the fixing portion is fixed to the slab, the heat insulating layer or the like by the screw, the adhesive layer or the pin, and the cap (joint material) is supported by the leg. . The fitting portion may be fitted into the rib / groove before adjusting the height of the joint material and the cap.

At this time, the rib or groove in which the fitting portion is fitted is selected so that the leg has the inclination angle that most stably supports the joint material or the cap. Further, since the connection point between the leg and the fitting portion is displaced from the center of the fitting portion in the up-down direction, the fitting portion is inverted with respect to the leg (see FIGS. 2 and 3), so that the leg has the same inclination angle. The height of the fitting part is different. For this reason,
Considering the effect of this reversal, the leg should be at an angle that most stably supports the joint material or the cap.

[0018]

[Effects] Since the present invention is constructed as described above, the following effects 1 to 3 are exhibited.

For the height change of the joint material or the cap, select the rib or groove of the joint material or the cap, or make the fitting portion reversible to the leg (flexible) and the flexible bending of the fitting portion. This can be accommodated by adjusting the inclination angle with respect to the legs, and the joint material or cap at that height can be stably supported. Further, the legs do not spread too much, and there is no problem in laying the wire mesh.

When the pressing concrete is poured, a plurality of ribs bite into the concrete layer or concrete enters the groove, so that the joint material and the cap are surely integrated with the concrete layer, and the joint material is stable. Interspersed within the layers.

If the fixing pin is provided on the fixing portion via a string or the like, there is no fear of losing the fixing pin, and the flexibility of the string or the like does not hinder the insertion of the fixing pin.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shown in FIGS. 1 to 4 comprises a joint material 1, a cap 10 and legs 20.

The joint material 1 has a fixed base 2 on the lower side thereof.
The leg portion 2 ′ which fulfills the role of is formed, and the joint material 1 can be stably stood by the leg portion 2 ′. The material includes a resin molded product such as rubber and vinyl chloride, and a plastic foam such as urethane, polyethylene, polypropylene and polystyrene.

The cap 10 is made of a flexible resin and has a U-shaped cross section, and is placed on the joint material 1. By adjusting the covering degree, the upper surface of the cap 10 and the upper surface of the pressing concrete layer B are flush with each other in accordance with the inclination degree of the upper surface of the pressing concrete B.

The side surface of the cap 10 has a length of 4
A rib 11 of a strip is provided, and a fitting portion 21 of a leg 20, which will be described later, is fitted into this rib 11. The number of ribs 11 is arbitrary and may be provided intermittently instead of continuously over the entire length of the cap 10.

As shown in FIG. 4, the leg 20 has a fitting portion 21 having a U-shaped cross section at its upper end and a fixing portion 22 at its lower end. The connecting portions 21a and 22a of the fitting portion 21 and the fixing portion 22 are thin and bendable, so that the fitting portion 21 and the fixing portion 22 have a strong restoring force even when the fitting portion 21 and the fixing portion 22 have an arbitrary angle with respect to the leg 20. Is not given.

A pin plate 24 is provided on the fixed portion 22 of the leg 20 via a string 23, and the pin plate 24 has three pins 25. The presence of the string 23 causes the pin plate 24
Never lose (pin 25). On the other hand, the fixed portion 22
A hole 26 is formed through which each pin 25 passes,
As shown in FIG. 2, each pin 25 is passed through the hole 26 and inserted into the heat insulating layer A to fix the fixing portion 22. Pin 25, hole 2
The number and position of 6 are arbitrary. A butyl tape (adhesive tape) 27 with release paper is provided on the back surface of the fixing portion 22. Only one of the butyl tape 27 and the pin 25 may be used. Leg 2
0, the fitting portion 21, the fixing portion 22, the string 23, the fixing pin 25 and the like are integrally formed of resin.

This embodiment is constructed as described above. First, the upper surface of the cap 10 is adjusted so as to be flush with the upper surface of the concrete B by the degree of covering of the joint material 1 with the cap 10.

Next, the fitting portion 21 of the leg 20 is fitted to the rib 11, and the fixing portion 22 is inserted and fixed to the heat insulating layer A with the pin 25 to support the cap 10 and the joint material 1 with the leg 20. . At this time, the ribs 11 to be fitted are appropriately selected so that the legs 20 have an inclination angle that supports the cap 10 most stably, and the fitting portion 21 and the fixing portion 22 are appropriately inverted as shown in FIG. . Also, pin 25
If the butyl tape 27 is used to temporarily fix the cap 10 before the insertion, the leg 20 does not move during the insertion, and the cap 10 is supported accurately. Further, when there are a plurality of fixing pins 25, the joint of the heat insulating layer A is positioned between the pins 25,
When the fixing pins 25 are driven into the heat insulating layer A, the heat insulating layer A can be connected.

The legs 20 are attached at appropriate positions in the lengthwise direction of both side surfaces of the cap 10.

In the embodiment, the joint material 1 which can stand on its own is used, but the base 2 is separately provided as shown in FIG.
Needless to say, the present invention can be applied to a case where the base 2 is directly formed on the heat insulating layer A as shown in FIG. 8 and a case where the joint material 1 and the heat insulating layer A are integrally formed as shown in FIG. At this time, the height of the upper surface of the cap 10 can be adjusted by the degree of covering the joint material 1 of the cap 10 and the degree of fitting of the joint material 1 to the base 2.

The embodiment was the heat insulation method in which the heat insulation layer A was formed. However, when the heat insulation layer A is not interposed, for example, when the fixing portion 22 is directly fixed to the waterproof layer or the leveling mortar,
Since the pin 25 cannot be used, it is fixed with a butyl tape 27 or a separate adhesive. Further, as shown in FIG. 9, the fixing portion 22 may be fixed with a mortar a, and in this case, the base is a waterproof layer D or a leveling mortar layer. The fixing portion 22 has a shape such that it is easily fixed by the mortar a such as a rod. At this time, the joint material 1 can also be temporarily fixed with the mortar a.

The fitting portion 21 may be shaped so as to fit into one rib 11 as shown in FIG. 16 and FIGS. 10A to 10C, and the structure of the rib 11 and the fitting portion 21 is as shown in FIG. 10
Various types such as those shown in (a) to (d) can be adopted,
As shown in FIG. 7E, the groove 11 'may be used instead of the rib. 10 (b) to 10 (d), the fitting portion 2
When 1 can be inverted, the structure shown in FIGS. 11A and 11B is used.

Further, as shown in FIG. 12, the fitting portion 21 has a leg 20 interposed between the protrusions on the both sides so that the protrusion length t on both sides can be applied to the finger from the connecting portion 21a. The index finger and the middle finger can be applied to each other, and the fitting portion 21 can be easily fitted into the rib 11 or the groove 11 ′. This is particularly effective when the fitting portion 21 is inverted and fitted as shown in FIG. The connecting portions 21a and 22a may be bendable by fitting without being continuous as shown in FIG.

The rib 11 or groove 11 'of the cap 10 does not have to have a plurality of lines, and may have a single line as shown in FIGS.

The leg 20 may be replaced by a connecting strip such as a flexible band 23 'shown in FIG.
It goes without saying that this band 23 'is also integrally formed with the leg 20. In addition, as shown in FIG.
You may form and reinforce a.

The fixing portion 22 may be rod-shaped as shown in FIG. 16 and fixed by a stopper 24 'with a pin 25 as shown by a chain line. The stopper 24 'and the rod-shaped fixing portion 22
Alternatively, as shown in FIG. 17, the groove and the rib may be fitted together. Further, as the structure of the fixing portion 22 and its stopper 24 ', the structure shown in FIG. 18 is also conceivable, and the joint material 1 may be fixed or the pinning shown in FIG.

It is advantageous to provide the adhesive tapes 27 on both sides of the fixing portion 22 in that there is no need to newly provide the adhesive tapes 27 when reversing.

Each of the above-described embodiments has the cap 10, but as shown in FIGS. 18 to 20, there are those in which the joint material 1 is a pultruded molded product of a metal such as aluminum or a resin molded product. In this case, the rib 11 or the groove 11 ′ may be formed in the joint material 1 as shown in FIG.
In this case, the base 2 may be directly formed on the heat insulating layer A as shown in FIGS. 6 and 7, or a molded product similar to the joint material 1 as shown in FIGS. 18 and 20.

As shown by the chain line in FIG. 9 and FIG.
The cap 10 or the top of the joint material 1 preferably has the same shape as the rib 11 or more. With this configuration, when the jointing material 1 is crossed and constructed, the top end face of the jointing material 1 or the cap 10 that abuts is the protruding portion 1a, 1
There is no gap on the upper surface of the abutting portion due to contact with 0a.

[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 cut front view of another usage mode of the embodiment.

FIG. 4 is a perspective view of a leg of the embodiment.

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

FIG. 6 is a cutaway front view of another embodiment.

FIG. 7 is a cutaway front view of another embodiment.

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

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

10 (a) to (e) are cross-sectional views of a main part of another embodiment.

FIG. 11 (a) or (b) is a cross-sectional view of an essential part of another embodiment.

FIG. 12 is a perspective view of a leg of another embodiment.

FIG. 13 is an explanatory view of the operation of the leg.

FIG. 14 is a cross-sectional view of main parts of another embodiment.

FIG. 15 is a perspective view of another embodiment.

FIG. 16 is a perspective view of another embodiment.

FIG. 17 is a perspective view of an essential part of another embodiment.

FIG. 18 is a cutaway front view of another embodiment.

FIG. 19 is a cutaway front view of another embodiment.

FIG. 20 is a cutaway front view of another embodiment.

FIG. 21 is a cut front view of a conventional example.

FIG. 22 is a cut front view of a conventional example.

[Explanation of symbols]

1 joint material 2 base 3, 10 cap 4, 20 legs 11 ribs 11 'groove 21 Fitting part 22 Fixed part 21a, 22a Connection part 23 string 23 'obi 24-pin board 25 fixing pin 26 holes 27 Adhesive layer (butyl tape)

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ryozo Sawanishi 24-10 Eki-cho, Suita City Yamade Co., Ltd. (72) Inventor Takashi Inoue 24-10 Eki-cho Suita-shi Yamade Co., Ltd. (56) References Japanese Unexamined Patent Publication No. 5-256016 (JP, A) Actual development No. 7-21892 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04F 15/14

Claims (8)

(57) [Claims] 1. A presser concrete B joint material 1 is fixed to the upper surface of a slab such as a rooftop, and a cap 1 is provided on the joint material 1.
A joint material support structure in which 0 is movably covered in the vertical direction and the cap 10 is supported on the upper surface of the slab by fixed legs 20, which is characterized in that the following points are achieved.
At the same time, the holding concrete B is in front of the heat insulating layer A.
It is to be placed on the upper surface of the slab.
The fixing pin through the flexible connecting strip 23, 23 '.
25 is provided, and the fixing pin 25 is inserted into the heat insulation layer A.
Characterized by having been entered . The cap 10
Has laterally extending ribs 11 or grooves 11 'in the vertical direction in a plurality of steps. The leg 20 has a fitting portion 21 that fits in the rib 11 or the groove 11 ′ at the upper end, and has a fixing portion 22 that is fixed to the slab at the lower end. 2. A base 2 of a joint material 1 for holding concrete B is fixed to the upper surface of a slab such as a rooftop, and the lower portion of the joint material 1 is fitted in the base 2 so as to be vertically movable, and the joint material 1 is slab. A support structure for a joint material supported by a leg 20 fixed to the upper surface, which is characterized in that it has the following points and the point described in claim 1 ,
The cleat B is placed on the upper surface of the slab with the heat insulating layer A interposed.
The fixing portion 22 described below has a flexible connecting strip.
The fixing pin 25 is provided through 23, 23 ',
The fixing pin 25 is inserted in the heat insulation layer A.
What to do . The joint material 1 has longitudinal ribs 11 or grooves 11 'in a plurality of vertical steps on its side surface.
The leg 20 has a fitting portion 21 that fits in the rib 11 or the groove 11 ′ at the upper end, and has a fixing portion 22 that is fixed to the slab at the lower end. 3. A presser concrete B joint material (1) is fixed to the upper surface of a slab such as a rooftop, and a cap (1) is provided on the upper portion of the joint material (1).
A support structure for a joint material, in which 0 is movably covered in the vertical direction and the cap 10 is supported on the upper surface of a slab by legs 20 fixed to the slab, which has the following points and the point described in claim 1. And hold down concrete B
Is placed on the upper surface of the slab through the heat insulating layer A
In the fixing portion 22 below, flexible connecting strips 23, 2 are provided.
The fixing pin 25 is provided through 3 '.
25 is inserted in the heat insulating layer A. The cap 10 has longitudinal ribs 11 or grooves 11 'on its side surface. The fitting portion 21 below is flexibly connected to the leg 20 and is connected to the fitting portion 21a.
The connecting point between the leg 20 and the leg 20 is displaced upward or downward from the vertical center of the fitting portion 21. The leg 20 has a fitting portion 21 that fits in the rib 11 or the groove 11 ′ at the upper end thereof,
The lower end has a fixing portion 22 fixed to the slab. 4. A base 2 of a joint material 1 for holding concrete B is fixed to the upper surface of a slab such as a rooftop, and a lower portion of the joint material 1 is fitted in the base 2 so as to be vertically movable, and the joint material 1 is slab. A supporting structure for a joint material supported by legs 20 fixed to the upper surface, which is characterized in that the following points and the points described in Claim 1 and Claim 3 are achieved , and the holding concrete B is Insulating the heat insulating layer A
It is to be placed on the upper surface of the slab and has the following fixed part 2
2 through its flexible connecting strips 23, 23 'to its fixing pin.
Is provided on the heat insulation layer A.
Characterized by being inserted . The joint material 1 has longitudinal ribs 11 or grooves 11 'on its side surface.
The leg 20 has the rib 11 or the groove 1 at the upper end thereof.
It has a fitting portion 21 that fits in 1'and a fixing portion 22 fixed to the slab at the lower end. The fitting portion 21 is flexibly connected 21 a to the leg 20, and the connection point between the fitting portion 21 and the leg 20 is displaced upward or downward from the vertical center of the fitting portion 21. 5. A leg 20 used in the joint structure supporting structure according to claim 1 , characterized by the following points'- '. 'Rib 11 above
Alternatively, it has a fitting portion 21 that fits in the groove 11 ′ and a fixing portion 22 fixed to the heat insulating layer A at the lower end. The fitting portion 21 is bendably connected to the leg 20 and the connecting point between the fitting portion 21 and the leg 20 is displaced upward or downward from the vertical center of the fitting portion 21. 'The fixed portion 22 is provided with a plurality of pins 25 via flexible connecting strips 23, 23', and each fixed pin 2
A hole 26 through which 5 passes is formed. 6. A retainer concrete B joint material (1) is fixed to the upper surface of a slab such as a rooftop, and a cap (1) is provided on the upper portion of this joint material (1).
A support structure for a joint material, in which 0 is movably covered in the vertical direction and the cap 10 is supported on the upper surface of a slab by legs 20 fixed to the slab, which has the following points and the point described in claim 1. What to do. The cap 10 has longitudinal ribs 11 or grooves 11 'on its side surface.
The following fitting portion 21 is flexibly connected to the leg 20 2
1a and by reversing the leg 20 from one side to the other side, the fitting position for the leg 20 is changed from one side to the other side.
Square side next to and, connecting point of the fitting portion 21 and the leg 20 are shifted upward or downward from the vertical center of the fitting portion 21,
The fixing portion 22 described below is flexibly connected to the leg 20 at 22a.
Then, the fixing position is changed from one side to the other side with respect to the leg 20 by reversing the leg 20 from one side to the other side , or the engagement with the slab and the stopper 24 '. The joining is performed on an arc surface so that the leg 20 can swing in the vertical direction with respect to the slab. The leg 20 has the rib 1 on the upper end thereof.
1 has a fitting portion 21 that fits in the groove 11 ', and has a fixing portion 22 fixed to the slab at the lower end. 7. A base 2 of a joint material 1 for holding concrete B is fixed to the upper surface of a slab such as a rooftop, and the lower portion of the joint material 1 is fitted in the base 2 so as to be vertically movable, and the joint material 1 is slab. A joint structure supporting structure supported by legs 20 fixed to the upper surface, wherein the following points and the point described in claim 1 are achieved. The joint material 1 has longitudinal ribs 11 or grooves 11 'on its side surface.
Have. The leg 20 has the rib 11 on the upper end thereof.
Alternatively, it has a fitting portion 21 that fits in the groove 11 ′ and a fixing portion 22 fixed to the slab at the lower end. The fitting portion 21 is flexibly connected 21 a to the leg 20,
By reversing from one side to the other side with respect to the leg 20, the fitting position from the one side to the other side with respect to the leg 20,
In addition, the connection point between the fitting portion 21 and the leg 20 is displaced upward or downward from the center of the fitting portion 21 in the up-down direction.
2, is bent freely coupled 22a on the leg 20, the
By reversing from one side to the other side with respect to the leg 20 ,
The fixing position is changed from one side to the other side with respect to the leg 20, or the engagement with the stopper 24 'with the slab is performed on the arc surface so that the leg 20 can swing in the vertical direction with respect to the slab. . 8. A leg 20 used in the joint structure supporting structure according to claim 6 or 7, characterized by the following points 'and'. The fitting portion 21 that fits into the rib 11 or the groove 11 is provided at the upper end, and the fixing portion 22 that is fixed to the heat insulating layer A is provided at the lower end. 'The fitting portion 21 is flexibly connected to the leg 20 and is connected to the leg 20.
By reversing from one side to the other side, the fitting position for the leg 20 is changed from one side to the other side , and the fitting portion 21
The connecting point between the leg 20 and the leg 20 is displaced upward or downward from the vertical center of the fitting portion 21, and the fixing portion 22 is fixed to the leg 20.
Is flexibly connected to the legs 22a,
By reversing from the side on the other side, fixed to the legs 20
The position is from one side to the other .