JPH0893148A - Joint material support member - Google Patents

Abstract

PURPOSE: To define the specification of a joint material support member which is convenient to use and carry and store and which is used based on a joint construction method which places concrete and forms joints in a state in which a joint main body is installed to a floor surface and no fixing work is carried out based on a support leg and mortar. CONSTITUTION: A joint material support member 20 is a hollow material having a bottom to be arranged on a foundation bed surface and it is so shaped up that it may be directly or indirectly placed in contact with a side surface of a joint main body 10 to support the joint main body in profile and provides an infection hole 21 on a part of the outer surface and is designed to provide weight which allows the joint material to be fixed by injecting a fluid, such as water. A notched part 23, whose shape is so designed to conform to the cross sectional shape on the lower side of the joint material main body 10, is prepared on the lower end on the contact side with the joint material main body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a joint main body made of a plate-like foam material, which is erected on the floor surface, and the joint is formed by placing concrete without fixing with supporting legs or mortar. 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 stretch joints have been widely used. This joint material is, for example,
-51611, the joint main body is formed of a plate-shaped foam material, and the head is capped with a reinforcing cap, which uses dedicated support legs. It stands upright on the base surface, and the periphery of the leg member is fixed with mortar.

For the joint construction using the so-called expansion joint, the fixing work with mortar is complicated, and the thickness of the holding concrete becomes thin at the portion where the mortar is present, so that cracks and the like easily occur, so-called bottom joints. It has been pointed out that it cannot be cut.

As a joint construction method that solves such a problem, the present inventor stood up the joint material main body in a grid-like manner on the base surface in every fixed section, and at the same time, on the side of the joint material main body (outside of the base material). ), Place the fixing member to prevent the joint material main body from shifting or bending due to the pressure when placing the concrete, and place the holding concrete, remove the supporting member by curing the concrete, An improved joint construction method of reusing for the next joint construction was proposed in Japanese Examined Patent Publication No. 5-53909.

The supporting member disclosed in this publication is
It is formed of a heavy object, such as iron, and requires various auxiliary members to prevent the joint material body from bending, and when it is applied to actual joint construction, It was found by the study of the present inventor that the joint construction method requires various improvements.

The present invention proposes a necessary improvement in the case of actually carrying out the joint construction method shown in the above-mentioned publication, and a joint used for preventing the joint material main body from being displaced or bent. It is an object of the present invention to clarify the improvement of a member for supporting materials, and a specific object of the present invention is to clarify a member for supporting joint materials, which is convenient for use, transportation, storage and the like and is easy to use. To do.

[0007]

A joint material supporting member according to the present invention is arranged along a side surface of a joint material main body arranged on a base surface to support the joint material main body, so that the joint material supporting member can be protected from an impact at the time of placing concrete. It is a joint material support member that prevents the joint material body from slipping or bending, has a side surface shape that directly or indirectly contacts and supports the side surface of the joint material body, and has a bottom surface for arranging on the base surface. As a member, an injection port is prepared in a part of the outer surface, and it is a structure in which the weight necessary for fixing the joint material is given by injecting the fluid, At the lower end, a cutout with a shape corresponding to the lower cross-sectional shape of the joint material body is provided, and an attachment having a notch with a shape corresponding to the lower cross-sectional shape of the joint material body is prepared. Attachment as a joint material support member The structure is to be attached to the lower end on the side that contacts the joint material main body, the fluid is water, the fluid is mortar or concrete, or sand or gravel, and the joint material supporting member is a blow molded body. And that the joint material support member has a handle structure.

[0008]

DETAILED DESCRIPTION OF THE INVENTION Next, details of the joint material supporting member according to the present invention will be described with reference to the accompanying drawings.

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

As the joint material main body 10, a plate-like member having a rectangular cross section and a uniform width is widely used, but the present invention does not use conventionally used supporting legs or fixing mortar. In the joint construction method according to (1), it is preferable to provide a wide portion 13 at the lower end of the joint material main body 10 for stability when it is erected on the base surface to improve the adhesion to the base surface. The joint material supporting member 20 has a hollow structure and is preferably made of a synthetic resin material,
Pour fluid such as water, mortar, concrete, sand, and gravel through 1 and use it as a heavy object. Further, although the handle structure 22 is formed so as to be convenient to carry, it is preferable that the handle 22 has a structure having no protruding portion from the outer surface as shown in FIG. The injection port 21 and the handle structure 22 can be provided on any surface, not limited to the positions shown in the drawing.

It is also preferable that the bottom surface of the joint material supporting member 20 is formed with irregularities so that a rubber material for slip prevention is fitted therein. The rubber material may be in the form of a single plate material having concaves and convexes on the lower surface.

Further, a mode in which a pressure sensitive adhesive coated with a release paper is provided on the bottom surface of the joint material supporting member 20 is also useful for preventing lateral deviation when arranged on the base.

The length of the joint material supporting member 20 is, for example, 1
It can be configured to be a long object having a length of m or more, or can be a member having a length of about 30 cm. Furthermore, whether it is arranged on the entire surface of the joint material main body 10 in the longitudinal direction, it is arranged in a dot shape. May be

Further, the joint material supporting member 20 is not limited to the outer shape shown in the drawing and can be designed arbitrarily, but is basically a cubic shape having no unevenness on the surface, and in the embodiment of the stepped shape shown in the drawing. In the case of management storage, it is preferable that the shape is a similar shape or a shape that can be stacked alternately.

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

As described above, setting the lower end of the joint material main body 10 to be slightly wider is useful for enhancing the adhesiveness to the base surface. For this purpose, the joint material supporting member 20 is provided. On the side, it is necessary to provide a notch 23 corresponding to the shape of the wide portion 13 of the joint material body 10. By firmly supporting the lower end side of the joint material main body 10 with such a configuration, it is possible to prevent the joint material main body 10 placed on the base surface from being pushed out by the pressure at the time of placing concrete. Is effective for.

On the other hand, as shown in FIG.
Various shapes can be considered and adopted for the wide portion 13 formed at the lower end of the joint. In order to firmly support this portion, the joint material supporting member 20 shown in FIG. It is preferable to prepare an attachment 25 having notches 24 corresponding to the shape of the wide portion 13 instead of the notches 23. Furthermore, the attachment 25 has a common attachment structure for attaching to the joint material support member 20, and by preparing several kinds of attachments having different notches 24, the attachment 25 can be adapted to the joint material main body 10. .

Next, another embodiment for achieving the above-mentioned object will be described.

The joint material supporting member of another embodiment according to the present invention is arranged along the side surface of the joint material main body arranged on the base surface to support the joint material main body, and the joint material is protected from the impact at the time of placing concrete. A hollow member having a side surface shape for supporting the side surface of the joint material body by directly or indirectly contacting it, and a bottom surface for arranging on the base surface. The injection port is prepared in a part of the outer surface, and the structure is such that the weight necessary to fix the joint material is added by injecting the fluid. On the surface, the means for fixing to the joint material body is arranged, the fluid is water, the fluid is mortar or concrete, or sand or gravel, and the joint material supporting member is blow molded. Being a body, the joint material support member Having a hand structure, respectively, characterized.

Next, details of another embodiment of the joint material supporting member according to the present invention will be described with reference to the accompanying drawings.

In FIG. 4, reference numeral 10 is a conventionally known joint material main body, which is formed of a synthetic resin foam, and is provided with a reinforcing cap 11 on its upper portion. In the joint construction method to which the present invention is applied, conventionally used conventional support legs or fixing mortar is not used, but it is attached to the base with butyl rubber or double-sided adhesive tape 12 or the like to be interposed on the lower surface of the joint material 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, and is preferably blow-molded with a synthetic resin material, and a fluid such as water, mortar, concrete, sand, and gravel is poured through the inlet 21 and used as a heavy weight. To do. Also,
The handle structure 22 is formed so as to be convenient to carry, but it is preferable that the handle 22 has a structure having no protruding portion from the outer surface as shown in FIG. The injection port 21
Also, the handle structure 22 can be provided on any surface other than the position shown.

It is also preferable that the bottom surface of the joint material supporting member 20 is formed with irregularities so that a rubber material for slip prevention is fitted therein. The rubber material may be in the form of a single plate material having concaves and convexes on the lower surface.

Further, a mode in which a pressure sensitive adhesive coated with a release paper is provided on the bottom surface of the joint material supporting member 20 is also useful for preventing the lateral deviation when arranged on the base.

The length of the joint material supporting member 20 is, for example, 1
It can be configured to be a long object having a length of m or more, or can be a member having a length of about 30 cm. Furthermore, whether it is arranged on the entire surface of the joint material main body 10 in the longitudinal direction, it is arranged in a dot shape. May be

The joint material supporting member 20 is not limited to the outer shape shown in the drawing and can be designed arbitrarily, but basically it is a cubic shape having no irregularities on the surface, and it is possible to superimpose it in a similar shape or alternately. A certain shape is preferable for management storage.

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

The jointing material main body 10 and the jointing material supporting member 20 are arranged on the base surface in an arrangement state as shown in FIG. 4, but when the base material surface is uneven, the both members are not completely transparent and are not completely transparent. It is expected that it will be difficult to arrange them in close contact. If there is a gap between the joint material main body 10 and the joint material supporting member 20, the joint material main body 10 is bent by that amount, and the upper surface of the cap 11 may be tilted to form a joint having a bad appearance.

Therefore, in the joint material supporting member 20 of the present invention, the fixing means 23 for the joint material body 10 is arranged on the surface of the joint material supporting member 20 that is in contact with the body material body. As shown in FIG. 5, the fixing means 23 has a structure in which a needle-shaped member 25 is erected on a plate-shaped base body 24, and is a surface of the joint-member supporting member 20 that is in contact with the joint-member main body 10. It is fitted and fitted into the mounting groove 26 prepared in. Of course, the mounting groove 26 may be vertical.

The fixing means 23 may be of the structure shown in the figure, or may be of a structure in which a wood screw or the like is attached to a plate-shaped base body 24. Further, the base body 24 is formed in a disk shape, and It may have a structure in which a single needle-shaped member 25 is provided upright, and various other designs are possible.

According to the joint material supporting member 20 of another embodiment described above, since the fixing means 23 is provided on the surface of the joint material supporting member 20 which is in contact with the joint material main body 10, the needle-shaped member 2 thereof is provided.
Since the joint material supporting member 20 and the joint material main body 10 can be joined to each other by fixing 5 with the side surface of the joint joint main body 10, the joint material main body 10 is inclined during joint construction. It is possible to form joints that do not interfere with the appearance.

[0032]

Since the joint material supporting member 20 of the present invention is provided with the notch 23 corresponding to the wide portion 13 formed below the joint material main body 10, the joint material main body 10 is provided.
Can be firmly supported from the lower end to the upper end, and without causing joint construction failure such as the joint material peeling off from the base surface and being pushed out by the impact at the time of placing concrete, the above-mentioned problems are solved. It is possible.

[Brief description of drawings]

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

FIG. 2 is an end view showing an example of a joint material main body to which the present invention is applied.

FIG. 3 is a cross-sectional view of essential parts showing another embodiment of the present invention.

FIG. 4 is a perspective view showing still another embodiment of the present invention.

FIG. 5 is an exploded view of the main part of the above figure.

[Explanation of symbols]

 10-Joint material main body 11-Reinforcing cap 12-Butyl rubber or double-sided adhesive tape 13-Wide portion 20-Joint material supporting member 21-Water inlet 22-Handle structure 23-Notch 24-Attachment

Claims (6)

[Claims] 1. A joint material supporting member which is arranged along a side surface of a joint material main body arranged on a base surface and supports the joint material main body, and prevents the joint material main body from being jammed or bent from an impact at the time of placing concrete. It is a hollow member having a side surface shape that directly or indirectly contacts and supports the side surface of the joint material body, and has a bottom surface to be arranged on the base surface, and an injection port is prepared in a part of the outer surface. The structure is such that by injecting a fluid, the weight necessary to fix the joint material is given, and the lower end on the side that contacts the joint material body corresponds to the lower cross-sectional shape of the joint material body. A joint material supporting member, characterized in that a notch having the above-mentioned shape is prepared. 2. An attachment having a cutout having a shape corresponding to a lower side cross-sectional shape of a joint material main body is prepared, and the attachment is attached to a lower end of a joint material supporting member which is in contact with the joint material main body. The joint material supporting member according to claim 1, wherein 3. The joint material supporting member according to claim 1, wherein the fluid is water. 4. The joint material supporting member according to claim 1, wherein the fluid is mortar, concrete, sand or gravel. 5. The joint material supporting member according to claim 1, 2, 3 or 4, wherein the joint material supporting member is a blow molded product. 6. The joint material supporting member according to claim 1, wherein the joint material supporting member has a handle structure.