JP3209647B2 - Joint support material - 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 body made of a plate-like foam material, which is erected on a floor surface and casts concrete without fixing with supporting legs or mortar to form a joint. The present invention relates to a joint material supporting member used in a joint construction method.

[0002]

BACKGROUND OF THE INVENTION Conventionally, joint materials called so-called expansion joints have been widely used. This joint material is, for example,
As shown in JP-51611-A, the joint body is formed of a plate-like foam material, and the head is covered with a reinforcing cap. The base member is erected on the base surface, and the periphery of the leg member is fixed with mortar.

[0003] For the above-mentioned joint construction using a so-called elastic joint material, fixing work using a mortar is complicated. In a portion where the mortar exists, the thickness of the holding concrete is reduced, so that cracks and the like are easily generated. Problems such as inability to cut are pointed out.

As a joint construction method that solves such a problem, the present inventor sets up the joint material main body in the form of a square for each fixed section on the base surface, and also sets the joint side on the side surface (outside of the square). ), Place the fixing member, place the holding concrete so that the joint body does not shift or bend by the pressure at the time of concrete placement, cure the concrete, remove the supporting member, An improved joint construction method of reusing for the next joint construction was proposed by Japanese Patent Publication No. 5-53909.

[0005] The supporting member disclosed in this publication is
It is a heavy object, for example, formed of iron or the like, and also requires various auxiliary members for preventing bending of the joint material main body. The present inventor's research has revealed that the joint construction method requires various improvements.

[0006] The present invention proposes an improvement in the case of performing the joint construction method disclosed in the above-mentioned publication, and a joint member supporting member used for preventing displacement and bending of the joint member body. It is an object of the present invention to clarify the improvement of the present invention, and a specific object of the present invention is to clarify a joint member supporting member that is convenient for use, transportation, storage, and the like, and is easy to use. .

[0007]

The joint member supporting member according to the present invention is arranged along the side surface of the joint member main body arranged on the base surface to support the joint member, thereby preventing the joint member from being subjected to impact during concrete casting. A joint material supporting member that prevents displacement and bending of the joint material body, has a side structure that directly or indirectly contacts and supports the side surface of the joint material body, and has a bottom surface that is arranged on the base surface. A joint material supporting member having a structure in which an injection port is provided on a part of an outer surface of the member and a weight necessary for fixing the joint material by injecting water is provided. The support members are configured to be used by arranging a plurality of them in a point-like manner, and that each joint member support member is connected by a conduction pipe in order to be able to inject and discharge water at one time. Features.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the joint material supporting member according to the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 denotes a conventionally known joint material main body, which is formed of a synthetic resin foam, and has a cap 11 for reinforcement on an upper portion. In the joint construction method to which the present invention is applied, a conventionally used support leg or fixing mortar is not used, and the joint is attached to the base with butyl rubber or double-sided adhesive tape 12 interposed on the lower surface of the joint material main body 10. And the side surface is supported by the joint material supporting member 20 described below.

The joint material supporting member 20 has a hollow structure as shown in FIGS. 1 and 2, and is preferably blow-molded with a synthetic resin material, and water is poured through an inlet 21 to be used as a heavy material. Further, a handle structure 22 is formed so as to be easy to carry, and it is preferable that the handle 22 has a structure having no protruding portion from the outer surface as shown in FIG. In addition, the inlet 21 and the handle structure 22 can be provided on an arbitrary surface even if they are not located as shown in the figure.

As shown in FIG. 2, it is also preferable that the joint member support member 20 is formed with irregularities on its bottom surface and a rubber material 23 for preventing slippage is fitted therein. The rubber material 23 may be a single plate material having irregularities formed on the lower surface.

Further, a mode in which an adhesive or the like covered with release paper is provided on the bottom surface of the joint material supporting member 20 is also useful for preventing sideways when arranged on a base.

The length of the joint material supporting member 20 is, for example, 1
m or a long member of about 30 cm. Further, whether the joint material is arranged on the entire surface in the longitudinal direction of the joint material main body 10 or in a form arranged in a dot-like manner It may be. Joint material body 1 arranged in a point shape
In the mode in which the joint material 10 is supported, the joint material main body 10 may be displaced or flexed by the pressure at the time of placing the concrete. Therefore, as shown in FIG.
It is preferable to use As shown in FIG. 3B, it is preferable that the reinforcing plate member 24 be attached by simply inserting it into the side surface of the joint member supporting member 10. Such a reinforcing plate member 24 can also be used as a reinforcing material at the time of joint construction in a mode in which the joint material main body 10 has a high height and is easily bent. In the usage of such an aspect, a plate material having the same length as the joint material supporting member 20 may be used. In addition, it is possible to correspond to the height of the joint material body 10 by preparing several types of plate materials having different heights.

As shown in FIG. 3, the present invention relates to a joint member supporting member 20 which is used in a point-like manner so that water can be injected and discharged at one time. 20
Are connected by conducting tubes 25 and 26. Further, the conduit 25
By connecting 26 to the pump, the injection and discharge of water can be reused, which is also effective for resource saving and cost reduction. Further, according to this configuration, the contact pressing force on the joint material main body side can be adjusted by adjusting the amount of water to be injected.

Further, the joint material supporting member 20 is not limited to the external shape shown in the figure, and can be arbitrarily designed, but is preferably a cubic shape having no unevenness on the surface. In the illustrated step-like shape, a similar shape or a shape that can be alternately superimposed is preferable for management and storage.

The joint member supporting member 20 according to the present invention described above can be integrally formed by a blow molding method, a vacuum molding method, or the like. However, a member extruded like a mold material is cut into an appropriate length. Alternatively, a structure in which lid members are attached to both ends may be adopted. In such a manufacturing mode, the water inlet 21 and the handle structure 22 are arranged on the lid member side.

As described above, the joint material supporting member according to the present invention comprises:
Although the case has been described in which the side surface of the joint material main body is directly in contact with and supported by the joint member, a structure in which the side surface of the joint material main body is indirectly contacted with and supported by another member may be used.

[0018]

According to the present invention, the joint material supporting member 20 is provided.
By using, the joint material body 10 is arranged on the base surface,
Just by arranging the joint material supporting members 20 on the side surfaces, it is possible to drive the holding concrete.
In particular, it is not necessary to form the joint material supporting member 20 with iron or the like in order to make it heavy, and in particular, water is used as a fluid, and the water is injected and discharged at a time by connecting with a conduit. Since the configuration is made possible, transportation and storage become extremely easy once the water is drained, so that the object described above can be achieved.

In particular, when the joint material supporting member of the present invention is obtained as a blow-molded article, there is an advantage that even if the base surface is a waterproof layer, there is no possibility of damaging the corner surface because the corners are sufficiently chamfered. There is.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of the present invention.

FIG. 2 is a sectional view showing one embodiment of the present invention.

FIG. 3 is a perspective view and a partial sectional view showing another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10-joint material main body 11-reinforcing cap 12-butyl rubber or double-sided adhesive tape 20-joint material supporting member 21-injection port for water 22-handle structure 23-anti-slip rubber material 24-reinforcing plate material 25- Conductor tube 26- Conductor tube

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) E04F 15/14 E04B 1/62 E04D 11/00 E01D 9/00-11/00

Claims (1)

(57) [Claims] 1. A joint material supporting member which is arranged along the side surface of a joint material body arranged on a base surface to support the joint material body, and prevents displacement and bending of the joint material body from an impact during concrete casting. It has a side surface structure that directly or indirectly contacts and supports the side surface of the joint material main body, and is a hollow member having a bottom surface for arranging on the base surface, and an injection port is provided on a part of the outer surface. In the joint material supporting member having a structure in which water is injected to add a necessary weight to fix the joint material, a plurality of the joint material supporting members are arranged in a dot shape and used. And water injection at one time.
A joint member supporting member, wherein each joint member supporting member is connected by a conduction pipe to enable discharge.