JP2006063788A - Removably attaching device for veranda side ditch form and form using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a removably attaching device for a veranda side ditch form solving the problem that excess concrete falling into a gap between a rising part and a sheathing of a wall form is hard to remove, enhancing workability of concrete placing work and reducing the remnants after removing the forms by minimizing the rising part for fixing the veranda side ditch form to a veranda railing wall form, and the veranda side ditch form using the same. <P>SOLUTION: The form using the removably attaching device for a veranda side ditch form comprises a form main body having an inverted trapezoidal vertical cross-section consisting of one vertical side face and the other inclined side face and the removably attaching device 3 set in contact with and fixed partially on the vertical side face and a bottom face in the longitudinal direction of the main body 2. The removably attaching device 3 used therein has a vertical section provided with an extension part extended upward from the top face of the main body to constitute an approximate L shape. The extension part has a crowbar hole 35 into which a crowbar is inserted when the veranda side ditch form is removed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

TECHNICAL FIELD The present invention relates to an attachment / detachment tool for attaching a mold used for forming a side groove of a concrete veranda and a mold for a veranda side groove using the same.

When constructing a veranda with concrete, generally, a method of placing floor concrete and handrail wall concrete at the same time is performed. At that time, in order to form the side groove of the veranda, the form of the side groove is formed by embedding a veranda side groove formwork (hereinafter referred to as a side groove formwork) in the floor concrete. A method of nailing and fixing to a veranda handrail wall formwork (hereinafter referred to as a wall formwork) is used.

And as a part to be nailed, it is effective to provide a rising part that protrudes upward from the main body on the wall formwork mounting side of the main body having a cross-section of a trapezoidal cross section. There is an invention formed integrally (see, for example, Patent Document 1).

In addition, there is an invention in which the rising portion is an attachment plate to the wall mold and the main body is fixed to the attachment plate (see, for example, Patent Document 2).

However, in these inventions, as shown in FIG. 8, since the rising portion is continuous, surplus concrete overflowing from the wall formwork at the time of handrail wall concrete placement is caused by the crest between the rising portion and the wall formwork. When falling between the plates, it is very difficult to remove the surplus concrete 6 that has fallen between the continuous rising portion 5 and the dam plate 42 of the wall mold 4. Overlaying the horizontal crosspieces 43 of the wall mold 4 can solve the problem, but the wall mold 4 becomes heavy and the workability is deteriorated, and the economy is also deteriorated.
Japanese Patent Publication No. 6-17629 JP 2000-291257 A

According to the present invention, the continuous rising portion provided in the conventional invention is set as a minimum required rising portion, so that excess concrete that has fallen into the closed space between the rising portion and the wall plate is removed. The technical problem is to solve the problem of difficulty, improve the workability of concrete placement, and reduce the remaining material after removing the formwork.

Means employed for solving the above-described problems in the present invention will be described below with reference to the accompanying drawings.

That is, the present invention relates to a side groove mold 1 for forming a side groove of a concrete veranda, a mold body 2 having a vertical section on one side and an inclined surface on the other side, and an inverted trapezoidal cross section. The attachment / detachment tool 3 is partially fixed in the longitudinal direction. The attachment / detachment tool 3 has an L-shaped part that is fixed in contact with one vertical surface and bottom surface of the mold body, and the vertical part is the mold body. And a technical means having a burl hole 35 for inserting a burl when the side groove mold is removed. By adopting it, the attachment / detachment tool used for the side groove mold was completed.

In addition to the above-described means, the present invention employs technical means that can be screw-fixed to the mold body easily by providing screw holes in at least the vertical portion of the L-shaped portion of the detachable tool.

  In addition, a technical means that can easily be nailed to the wall mold by adopting a nail hole in an extension part in which the vertical part of the detachable tool extends upward from the upper surface of the mold body.

  Furthermore, technical means that can be used in response to changes in the width and depth dimensions of the veranda side groove by fixing the detachable tool to the side surface and / or the bottom surface of the mold body via a dimension adjusting auxiliary member. Adopted to complete the side groove formwork.

According to the present invention, there is no continuous rising portion provided in the conventional invention product, and the detachable tool 3 for fixing the mold body 2 to the wall mold is partially in the longitudinal direction of the mold body 2. If the attachment / detachment tool 3 is fixed to the vertical crosspiece 41 of the wall mold 4, no closed space is generated between the slat 42 of the wall mold 4 and the side groove mold 1. Therefore, it is possible to easily remove excess concrete that has fallen to the outside of the siding plate 42 during the placement of the wall form concrete.

As a result, the workability of placing the veranda concrete is improved, the remaining concrete material after removing the formwork is reduced, the labor of cleaning is saved, and the site can be kept clean.

In addition, since the concrete adherence to the wall formwork is reduced, the work of cleaning the wall formwork is also reduced, and the labor reduction effect of the formwork carpenter is obtained.

If the mold body 2 is made of synthetic resin, it can be easily released from concrete, the work efficiency of removing the mold can be improved, and it can be reused repeatedly, thus improving the economy.

Since the bur hole 35 into which the bur is inserted is provided in the attachment / detachment tool 3, the removal work of the side groove mold 1 after the concrete is placed is easy. In addition, since the part where the burl hole 35 is formed is thicker than the other part as necessary, it is ensured that the tip of the burl is inserted and locked, and also for repeated use. There is little damage.

Since the attachment / detachment tool 3 is fixed by embedding the side surface and the bottom surface of the mold body 2 at the L-shaped portion, the detachment tool 3 is also inserted when the bar tip is inserted into the burl hole 35 and pulled up to remove the side groove mold 1. The mold body 2 can be easily removed from the concrete following the attachment / detachment tool 3.

Further, the detachable tool 3 can be reused if it is removed and attached to a new formwork body when the formwork body 2 is damaged due to repeated use of the side groove formwork 1 and can be used semi-permanently. Is.

When the length of the side groove mold 1 is changed, the mold body 2 is cut and the attachment position of the attachment / detachment tool 3 is moved as required, and a desired length can be easily obtained.

The problems of the invention described in Patent Document 1 are described in Patent Document 2, and among them, when the side groove mold is fixed to the wall mold with a hammer, the side groove mold In the present invention, the problem that the hooking portion for pulling up at the upper end of the steel plate may be broken is solved because the corresponding portion is made of a fiber reinforced resin or metal having strength.

Similarly, if too much force is applied to the pulling hook portion, the pulling hook portion is partially broken. According to the detachable tool 3 of the present invention, it is sufficient because it is made of fiber reinforced resin or metal. Strength is obtained and resolved.

Furthermore, the problem that the concrete enters into the hollow part of the side groove form and takes a lot of time to remove the gutter is not a problem because there is no hollow part according to the present invention.

In the invention described in Patent Document 2, since the core material is made of wood, small edge fittings are respectively attached to the small edge portions at both ends. However, in this case, when it is desired to shorten the length, it is complicated to remove and reattach the small edge fittings. Work is necessary. However, in the present invention, when the length is shortened, it is only necessary to cut the main body, and the workability is improved.

Hereinafter, the configuration of the present invention will be described in more detail on the basis of an embodiment specifically illustrated.

An embodiment of the present invention is shown in FIGS. FIG. 1 shows a side groove mold 1 of the present invention comprising a mold body 2 and a detachable tool 3. The detachable tool 3 is fixed to the mold body 2 with screws (not shown).

FIG. 2 shows a cross section of the mold body 2. The mold body 2 is a long body having a vertical trapezoidal cross-section with a vertical surface on one side and an inclined surface on the other side, and is made of a synthetic resin such as vinyl chloride, polystyrene, or ABS. A resin obtained by foaming these resins at low magnification and being extrusion-molded is preferable because it is strong and light, and is easy to fix with nails, screws and cutting.
Needless to say, the mold body may be a conventional wooden body, and the detachable tool 3 of the present invention can be attached to a conventional product.

FIG. 3 shows the detachable tool 3. The detachable tool 3 is manufactured by integral molding by injection molding of fiber reinforced resin or by processing it into a substantially L shape from a metal plate. The attachment / detachment tool 3 has an L-shaped portion that is in contact with one side vertical surface and bottom surface of the mold body 2 and an extension portion whose vertical portion extends upward from the upper surface of the mold body 2. A screw hole 33 for fixing to the mold body 2 is formed on the vertical side of the part, a nail hole 34 for fastening the side groove mold 1 to the wall mold 4 on the extension, and a side groove mold A bur hole 35 is provided for inserting the tip of the bur at the time of removal.
3A is an example of the detachable tool 3 made of metal, and FIG. 3B is an example of the detachable tool 3 by fiber-reinforced resin integral molding.

The burl hole 35 can be formed to be partially thick as long as the resin is integrally formed. However, if it is made of metal, a punching process may be used, but a cut and raised piece is formed by cutting and raising process. Thus, the bar tip can be locked more reliably.

Through the screw hole 33 of the attachment / detachment tool 3, the substantially L-shaped long side portion 31 is brought into contact with the vertical surface on one side of the mold main body 2, and the short side portion 32 is brought into contact with the bottom surface of the main body 2. And if necessary, the side groove mold 1 is manufactured by fixing to the bottom side with screws. The mounting interval of the detachable tool 3 is set in accordance with the position of the vertical pier 41 of the wall mold 4 as shown in FIG.

The side groove mold 1 manufactured in this way is nailed to the vertical pier 41 of the wall mold 4 through the nail holes 34 of the attachment / detachment tool 3 after the wall mold 4 is installed. Secure and assemble in place. In addition, if the periphery of the nail hole 34 is formed so as to protrude entirely or partially, the nail head is locked in a protruding state, and it is easy to insert the nail into the nail head when removing it, thus improving workability. To do.

FIG. 5 is a cross-sectional view of the veranda mold in a state where the side groove mold 1 is assembled at a predetermined position of the wall mold 4.

FIG. 6 is a finished cross-sectional view of the veranda after removing the formwork.

FIG. 7 shows an embodiment of changing the dimensions of the mold body 2. When changing the dimensions of the mold body 2 in order to change the width or depth of the veranda side groove, as shown in (a), (b), and (c), the dimensions are measured on the vertical or bottom surface of the mold body or on both sides thereof. If the attachment / detachment tool 3 is attached via the adjustment auxiliary members 71, 72, 73, the side groove molds having different dimensions can be easily obtained.

FIG. 8 shows a conventional invention. It is very difficult to remove the surplus concrete 6 that has fallen into the closed space between the continuous rising portion 5 and the sill plate 42 of the wall mold 4 provided in the conventional invention. If the horizontal crosspieces 43 of the wall mold 4 are overlapped, the problem can be solved, but there is a problem that the wall mold 4 becomes heavy and the workability is deteriorated and the economy is also deteriorated.

The perspective view of the form for side grooves of the present invention Cross section of formwork body It is a perspective view of an attachment / detachment tool, (A) shows the Example manufactured with the metal, (B) shows the Example by fiber reinforced resin integral molding. Coarse perspective view of side groove formwork and wall formwork Veranda formwork assembly cross section Cross section of constructed veranda Illustration of dimension change example Explanatory drawing of conventional invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Form for gutter 2 Body 3 Detachment tool 31 Detachment tool long side part 32 Detachment tool short side part 33 Screw hole 34 Nail hole 35 Bar hole 4 Wall formwork 41 Wall formwork vertical crosspiece 42 Wall formwork crest Board 43 Horizontal pier 5 of wall formwork Rising part 6 of conventional invention Excess concrete 71, 72, 73 overflowing from wall formwork Dimensional adjustment auxiliary member

Claims (8)

In a detachable tool that is partially fixed in the longitudinal direction of an inverted trapezoidal mold body with a vertical cross-section where one side is a vertical plane and the other side is an inclined surface, The L-shaped part is composed of an L-shaped part that is fixed by contact and an extension part whose vertical part extends upward from the upper surface of the mold body, and a bar hole for inserting a bar when the extension part is removed. A veranda-side groove mold attachment / detachment tool characterized in that is provided.   2. The veranda-side groove mold attachment / detachment tool according to claim 1, wherein a portion provided with the burl hole is formed thick.   3. A veranda-side grooved mold attachment / detachment tool according to claim 1 or 2, wherein a screw hole for fixing to the mold body is provided at least in a vertical part of the L-shaped part.   The nail hole for fixing to a wall formwork is provided in the extension part in which the vertical part extended upwards from the upper surface of a formwork main part. Veranda side groove form attachment / detachment tool.   The veranda side groove mold attachment / detachment tool according to claim 4, wherein the periphery of the nail hole for fixing to the wall mold form protrudes.   The veranda-side groove mold attachment / detachment tool according to any one of claims 1 to 5, wherein the attachment / detachment tool is a fiber reinforced resin. In the mold form for the veranda side groove for forming the side groove of the concrete veranda,
A mold body having an inverted trapezoidal cross section in which one side is a vertical surface and an inclined surface is formed on the other side, and a detachable tool partially fixed in the longitudinal direction of the mold body. The L-shaped portion includes an L-shaped portion that is fixed in contact with the vertical surface and the bottom surface of one side, and an extending portion that extends upward from the upper surface of the mold body. A veranda-side groove mold, which is provided with a burl hole for inserting a burl when the side-groove mold is removed. The formwork for a veranda side groove according to claim 7, wherein an attaching / detaching tool is fixed to a side face and / or a bottom face of the formwork body via a dimension adjusting auxiliary member.