JPS639739Y2 - - Google Patents

Description

[Detailed description of the invention] When making concrete for side gutters, etc., this invention can be inserted between the overlapped ends of adjacent formwork and fixed using U-clips etc. This invention relates to a concrete separator configured to tow and support formwork against each other against the lateral pressure of poured concrete, and to cut off a portion protruding from the outer surface of the concrete after removing the formwork.

In this kind of concrete separator,
Conventionally, the cut was made to facilitate the removal of the part of the plate-shaped part located on the other end side of the locking part inserted between adjacent formworks and protruding outward from the surface of the poured concrete. Although straight perforations were formed along the width of the plate-shaped part to be cut out, this method does not require large-scale cutting jigs or construction work such as gas cutting, etc.
Although it can be easily removed with a general-purpose tool such as scissors or pliers, or even by hand in some cases, since the perforation is only formed in a straight line along the width direction, the separator cannot be removed from the opposing formwork. When used diagonally to the opposite direction between the molds, the perforations do not follow the outside surface of the formwork, and when removed along the perforations after demolding, a part of the mold may protrude. There were some inconveniences, such as some remaining tissue or not being able to be completely removed.

In view of the above circumstances, it is an object of the present invention to provide a separator that allows the separator to be stretched between opposing formworks without restricting its orientation, and that can be reliably and easily removed.

The concrete separator according to the present invention, which has been made to achieve the above object, has a characteristic configuration including a flat plate-shaped locking part that is inserted between the overlapping ends of adjacent concrete formworks on one end side and is releasably locked and fixed. In addition, a large number of point-shaped cuts for cutting are formed at close intervals over a certain range in the length direction of the plate-shaped portion located on the other end side of the locking portion.

The effects of the present invention having such a characteristic configuration are as follows.

In other words, after concrete is poured and cured, whether the installation direction of the separator protruding from the outer surface of the concrete is parallel to the formwork or at a certain inclination, the plate-shaped portion may be attached to the plate-shaped portion along its length. Since a large number of cut-off dotted cuts are formed at close intervals over a range of about 100 mm, the protruding portion can be reliably and easily cut parallel to the outer surface of the concrete and in a uniform state. Therefore,
Even if you cut it out along the cut as in the past, a part of it remains in a protruding state, so you don't have to cut it again with a cutting tool, so you don't have to do it twice, and there are fewer restrictions on the direction in which the separator can be installed. It has the advantage of being able to be constructed in

Embodiments of the configuration of the present invention will be described below with reference to the drawings.

As shown in Figure 1, the overlapping end of adjacent concrete formwork S,
It has a locking part 2 which is a circular hole that is inserted between Sa and Sa and is releasably locked and fixed, and a longitudinal direction of the plate-shaped part 1a located on the other end side of this locking part 2. A concrete separator 1, in which a large number of dotted cuts 3 for cutting are formed at close intervals, is hung between the opposed formworks S and S' as shown in FIGS. 2 and 3. As shown in FIGS. 4 and 5, the U clips 4 are inserted into the insertion holes drilled between the locking portion 2 and the overlapping ends Sa, Sa of the adjacent formworks S, S, respectively.
Penetrate Sb and Sb in a polymerized state and lock and fix.
After the separator 1 is stretched in this way, the concrete is poured, and after curing, the protruding portion of the concrete is removed.As shown in Figs. S,
Even if it is inclined to the width direction of S' or parallel to it, it can be cut flush with the outer surface of the concrete.

The dotted cut 3 may be a small hole passing through the plate-like portion 1a, and as shown in FIGS. Holes may be provided on both the front and back sides. Alternatively, as shown in FIG. 12, it may be formed into a file-like shape.

Figure 6 shows separator 1 connected to joint member 1A.
It is composed of two parts: and lever member 1B.
The joint member 1A has a flat plate-shaped locking part 2 on one end side which is inserted between the overlapping ends Sa and Sa of the adjacent concrete forms S and S and is removably locked and fixed. A large number of dotted cuts 3 for cutting are formed at close intervals over a certain range in the length direction of the plate-shaped portion 1a located on the other end side of the locking portion 2,
The other end side has an insertion locking part 1c which has a U-shaped cross section and whose upper end part is inserted and locks a bar member 1B stretched in a horizontal direction.

The bar member 1B may be any of the three types shown in the figure, and depending on the required strength, a flat plate-like member,
An angle member, a central round bar part and a flat part at both ends can be used properly, and a plurality of holes 1d drilled in the insertion locking part 1c of the joint member 1A and a plurality of holes 1e bored in the bar member 1B. It can be adjusted to suit the widthwise length of the opposed formworks S, S', and is inserted and fixed with pins 5.

As shown in FIGS. 7 and 8, the separator 1 is divided into two parts at the middle part, each of which has a U-shaped cross-sectional shape and an approximately T-shape with its upper end stretched in the left and right horizontal directions; The U-shape is slidably fitted into the other U-shape, and the pins 5 are inserted and fixed through the respective 1f formed therein.

[Brief explanation of the drawing]

The drawings show an example of the concrete separator according to the present invention, with Fig. 1 being an overall perspective view, Figs. 2 and 3 being plan views showing the construction state, and Fig. 4 showing the concrete separator locked between adjacent formworks. FIG. 5 is an enlarged vertical cross-sectional view of the main part showing the fixed state, FIG. 5 is a plan view of FIG. 4, and FIG.
7 are exploded perspective views and plan views showing different embodiments, FIG. 8 is a sectional view taken along the line -- in FIG. 7, and FIGS. 9 to 11 are enlarged longitudinal sections of main parts showing different embodiments. The top view and FIG. 12 are enlarged plan views of main parts showing another embodiment. S: Adjacent concrete formwork, Sa: Overlapping end, 1a: Plate-shaped portion, 2: Locking portion, 3: Dotted cut.

Claims (1)

[Claims for Utility Model Registration] It has a flat plate-shaped locking part 2 on one end side which is inserted between the overlapping ends Sa and Sa of the adjacent concrete forms S and S and is removably locked and fixed, and
A plate-shaped portion 1 located on the other end side of this locking portion 2
A concrete separator in which a large number of dotted cuts 3 for cutting are formed at close intervals over a certain range in the length direction of a. The concrete separator according to claim 1, wherein the dotted cuts 3 are small holes penetrating the plate-like portion 1a.