JP3204604B2 - Joint material support - 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 support structure for temporarily fixing a joint material of a holding concrete provided on a slab upper surface such as a roof with a heat insulating layer interposed therebetween, and in particular, a leg supporting the joint material. The present invention relates to a pin for fixing an end and a pin for fixing a joint material to a heat insulating layer.

[0002]

2. Description of the Related Art After a waterproofing treatment is applied to the upper surface of a slab such as a rooftop or a heat insulating layer is further provided, a holding concrete is poured. At this time, the upper surface of the holding concrete has a slope so that rainwater can be drained smoothly. For this reason, it is necessary to provide a slope also for the joint material upper surface of the holding concrete.

As means for providing a gradient on the joint material upper surface, the applicant of the present invention disclosed in Japanese Patent Application Laid-Open No. Hei 7-109820, as shown in FIGS. A joint support structure was proposed in which the joint material 1 was fixed, a cap 3 was movably covered over the joint material 1 in an up-down direction, and the cap 3 was supported on the upper surface of the heat insulating layer A with fixed legs 4.

In this technique, as shown in FIG. 7, the height of the upper surface of the cap 3 is adjusted by moving the cap 3 up and down so as to be flush with the upper surface of the concrete B.
The cap 3 is supported and fixed to the heat insulating layer A by fitting it to the upper end of the leg 4 fixed with the pin 5. At this time, as shown in the figure, in order to securely fix the joint material 1 to the heat insulating layer A, the fixing pins 7 are inserted through the joint material 1 and inserted into the heat insulating layer A.
In the figure, reference numeral 6 denotes a support pin fitted to the cap 3 and inserted into the joint material 1, and prevents the cap 3 from slipping and falling.

[0005]

The above-mentioned two fixing pins 5, 6
In FIG. 8, as shown in FIG. 8, if the sharp end is upward, there is a risk of stepping on a shoe or damaging a hand or the like. For this reason, improvement is desired.

In view of the above circumstances, it is a first object of the present invention to enhance the safety of a fixing pin, and a second object is to make it easier to pull out a fixing pin.

[0007]

In order to solve the above-mentioned first problem, according to the present invention, when a presser concrete is poured into an upper surface of a slab such as a roof with an insulating layer interposed therebetween, the presser is used. Fixing the joint material for concrete on the heat insulation layer,
Place a cap on this joint material so that it can move up and down,
When the cap is supported on the upper surface of the heat-insulating layer by fixed legs, the legs are fixed to the heat-insulating layer by inserting a fixing pin inserted through a fixing portion at the lower end of the leg into the heat-insulating layer. Is connected to a flexible cord extending from the leg so as not to be lost, and the fixing pin is configured to be horizontal when free by the connection of the cord.

[0008] In this arrangement, the flexible cord coupled to the top surface of the fixing pin, the fixing pin may assume that such a sideways free time.

Further , according to the present invention, when the holding concrete is placed on the upper surface of the slab such as the rooftop with the heat insulating layer interposed therebetween, the fixing material for the holding concrete is fixed on the heat insulating layer by the fixing pin. Then, the joint material is inserted and inserted into the heat insulating layer to support and fix the joint material, and the fixing pin is configured to be horizontal when free.

[0010] The structure formed in this sideways, consists of a rod-shaped portion of the tip pointed to inserted above Symbol insulation layer, and the head end of the rod portion, the outer surface of the head, toward the one side A fixing pin having a configuration in which a convex arc surface is formed and the center of gravity of the entire pin is deviated to one side from the center axis.

[0011] In the fixing pin having this structure, in order to achieve the second problem in addition to the first problem, a bulging portion is formed from a part of the lower surface of the head toward the tip of the rod-shaped portion. by leaving part comes into contact with the heat insulating layer, it may be a fixing pin of the configurations so as to obtain easily disconnect the pin may enter a finger or the like between the heat insulating layer and the pin head.

[0012]

[Effects] Since the present invention is constructed as described above, before the fixing pins are inserted into the heat insulating layer, that is, when they are free, they are horizontal and the sharp ends are horizontal. The risk of injury to your hands and hands is reduced as much as possible.

[0013] Further, since a finger or the like can enter, the fixing pin can be easily removed by inserting the finger or the like into the gap.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a joint material 1 has a leg 2 on its lower side which serves as a fixed base.
Are formed, and the joint material 1 can stand stably by the leg portions 2. The material is made of a resin molded product such as rubber and vinyl chloride, and a plastic foam such as urethane, polyethylene, polypropylene and polystyrene.

The cap 10 has a U-shaped cross section formed of a flexible resin, and is placed over the joint material 1. By adjusting the degree of covering, 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 degree of inclination of the upper surface of the pressing concrete B. In the figure, reference numeral 13 denotes a butyl tape.

On the side surface of the cap 10, 3
A strip rib 11 is provided, and a fitting portion 21 of a leg 20 described later is fitted into the rib 11. The number of the ribs 11 is arbitrary, and may be provided intermittently instead of being continuous over the entire length of the cap 10.

The leg 20 is a rigid body. As shown in FIG. 3, the upper end thereof has a U-shaped cross-section fitting portion 21 and the lower end thereof has a fixing portion 22.
Having. The connecting portion 21 of the fitting portion 21 and the fixing portion 22
A and 22a are thin and bendable so that a strong restoring force is not applied even if the fitting portion 21 and the fixing portion 22 are at an arbitrary angle with respect to the leg 20.

The fixing portion 22 of the leg 20 is provided with a pin plate 24 via a string 23, and this pin plate 24 has four pins 25. Due to the presence of the string 23 and the like, the pin plate 2
4 (pin 25) will not be lost. Further, the string 23 is connected to the back surface of the pin plate 25 (the top surface of the pin 25), and normally, as shown in FIGS. This horizontal orientation reduces the risk of stepping on a shoe or damaging a hand or the like.

On the other hand, the fixing portion 22 is formed with a hole 26 through which each pin 25 passes. As shown in FIGS. 1 and 2, each pin 25 is inserted into the heat insulating layer A through the hole 26. The fixing part 22 is fixed with. The numbers and positions of the pins 25 and the holes 26 are arbitrary. A butyl tape (adhesive tape) with release paper is provided on the back surface of the fixing part 22. Leg 20, fitting part 21,
The fixing portion 22, the string 23, the fixing pin 25 and the like are integrally formed of resin.

The joint material 1 is fixed by fixing pins 17 shown in FIG. 5, and the fixing pins 17 are three rod-shaped portions 17 having sharp tips.
a and a plate-like head 17b at the end of the rod-like portion 17a. One side of the head 17a is an arc surface 17b ',
One side of the base of the rod portion 17a is bulged. This bulge 1
Due to the presence of 7a ', the center of gravity of the fixing pin 17 is shifted (biased) from the center axis to the arc surface 17b' side, and is rotated as shown in FIG. Become. This horizontal orientation minimizes the risk of stepping on a shoe or damaging a hand or the like, as described above.

This embodiment is configured as described above, and as shown in FIGS. 1 and 2, the joint material 1 is fixed to the fixing pin 17.
After fixing the cap 10 to the joint material 1, first, the upper surface of the cap 10 is adjusted so as to be flush with the upper surface of the concrete B, and the support pin 16 is inserted into the joint material. 1 is fixed to the cap 10.
At this time, when the fixing pin 17 is replaced, as shown in the figure, when the fixing pin 17 is inserted into the joint material 1 (leg portion 2) and the heat insulating layer A, the presence of the bulging portion 17a 'causes Since a space S is formed between the leg 2 and the head 17b, a finger or the like is inserted into the space S, and the fixing pin 17 is pulled out.
In the figure, P is a slab and D is a waterproof layer.

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, and the cap 20 and the joint material 1 are supported by the leg 20. . At this time, the rib 11 to be fitted is appropriately selected so that the leg 20 has an inclination angle that most stably supports the cap 10. Also, if the pin 25 is temporarily fixed with butyl tape before being inserted,
The legs 20 do not move and the support of the cap 10 is accurate. The fixing portion 22 can be used even if it is inverted as shown by the chain line in FIG. The legs 20 are attached at appropriate positions in the length direction of both side surfaces of the cap 10.

[Brief description of the drawings]

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

FIG. 2 is a cut front view of the embodiment.

FIG. 3 is a perspective view of the leg of the embodiment.

FIG. 4 is a partial perspective view of the leg as viewed from an oblique rear side.

FIG. 5 is a perspective view of a fixing pin of the embodiment.

FIG. 6 is an explanatory view of the operation of the fixing pin.

FIG. 7 is a perspective view of a main part of a conventional example.

FIG. 8 is a perspective view of the leg of the conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Joint material 2 Leg part 3,10 Cap 4,20 Leg 6,16 Support pin 11 Rib 7,17 Joint material fixing pin 17a Joint material fixing pin bar part 17a 'Joint material fixing pin bulging part 17b Joint material fixing pin head Part 17b 'Joint material fixing pin head arc surface 21 Fitting part 22 Fixing part 21a, 22a Connecting part 23 String 24 Pin plate 25 Fixing pin 26 Hole A Heat insulation layer D Waterproof layer P Slab

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Soichi Yoshikawa 24-10, Enomachi, Suita City Yamada Co., Ltd. Examiner Masaaki Ieda (56) Reference Jikai Hei 21-21892 (JP, U) Kaihei 7-38405 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04D 11/00 E04F 15/14

Claims (2)

(57) [Claims] 1. When a holding concrete B is placed on an upper surface of a slab such as a roof with a heat insulating layer A interposed therebetween, the joint material 1 for the holding concrete B is fixed on the heat insulating layer A. Put the cap 10 on the upper part so that it can move up and down,
When the cap 10 is supported by the fixed legs 20 on the upper surface of the heat insulating layer A, the legs 20 are fixed to the heat insulating layer A by fixing the fixing pins 25 through the fixing portions 22 at the lower ends of the legs 20 to the heat insulating layer A. The fixing pin 25 is connected to the flexible cord 23 extending from the leg 20, and the fixing pin 25 is
As a sideways during freely Te, the leg 20, the fixed portion
22, the fixing pin 25 and the string 23 are integrally formed of resin.
Support structure joint material characterized by being. 2. The joint material supporting structure according to claim 1, wherein the flexible cord is connected to a top surface of the fixing pin, and the fixing pin is oriented horizontally when free. Characterized by that.