JPH0754336Y2 - Formwork for odd-shaped blocks - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved formwork for deformed concrete blocks, and more particularly to an improved formwork used in manufacturing multi-legged concrete blocks.

[0002]

PRIOR ART AND PROBLEMS TO BE SOLVED BY THE INVENTION Conventionally,
A multi-legged concrete block used for revetment, rooting, etc., is constructed by assembling multiple formwork members (shells) including end plates as a formwork using connecting means such as cotters, cotter pins, and C-shaped clamps. Manufactured by pouring concrete from the top pouring opening of the formwork, for example, using a bucket, and then curing the concrete by an operator compacting it with a vibrator on the formwork or inside the formwork, curing and then removing the mold. Has been done.

However, in a mold of this type having a small number of open surfaces, various restrictions are imposed on the weight and length of the vibrator, so that the compaction work becomes complicated and its efficiency is lowered, and the compaction work is also performed. Since the workers themselves also tend to rely on the intuition of the workers, various problems such as cracks and the like on the surface of the molded multi-legged concrete block caused by excessive vibration or too little vibration and deterioration of quality are pointed out. It had been.

[0004]

Therefore, according to the present invention, it is used for compacting poured concrete at a predetermined position of a form member in a form for a modified block formed by assembling a plurality of form members by connecting means. A plurality of openings for inserting the rod-shaped vibrator are provided, and a lid member is arranged to be openable and closable in these openings so that compaction work can be performed easily and efficiently from the outside.

[0005]

In this invention, the concrete poured from the top pouring opening of the formwork is compacted by the rod-shaped vibrator inserted from the outside through the opening formed at the predetermined position of the formwork member. The compacting work can be performed easily and efficiently, and the quality of the molded product can be improved.

[0006]

[Embodiment] Next, as a preferred embodiment of the modified concrete block mold according to the present invention, a tetrapod (trade name) mold sold by the applicant is illustrated, with reference to the accompanying drawings. The details will be described below.

That is, in FIG. 1, a mold 10 according to the present invention is provided with four mold members (shells) 12a, 12b, 12c, 12d of the same shape as side frames built on a bottom frame, These formwork members 12a, 12b, 12c, 12
Connect each connecting portion 14 of d to the taper pin 16 and the cotter pin 18.
And a leg portion 2 which is formed by the mold members 12a and 12b, 12b and 12c, 12c and 12d and 12d and 12a which are tightened by the cotter 20 and the like.
The end plate 26 is attached to the No. 2 via the C-shaped clamp 24.

In this embodiment, the four frame members 1 are used.
Each of 2a, 12b, 12c, and 12d is formed by dividing into one piece, but it goes without saying that it may be divided into plural pieces depending on the ton type.

Further, each form member 12a, 12b, 12
A circular opening 28 for inserting a rod-shaped vibrator A, which will be described later, is provided at a predetermined position of c and 12d, and a slit 30 is continuously provided on the outer side of the opening 28 in the radial direction. Then, a cover member 32 having a slightly larger shape, which is a combination of the circular shape and the slit shape, is arranged on the back side of the opening portion 28, and a pin member 36 is inserted into and removed from a handle portion 34 of the cover member 32. The circular opening 28 can be opened and closed by sliding 32 (see FIGS. 2 and 3).

As the opening / closing means for the opening portion 28, a suitable member such as a lid member which is openably / closably attached by a hinge or a lid member which is slidably arranged in a guide groove provided inside the opening portion 28 is used. can do.

The mold 10 according to the present invention having the above structure
When molding a tetrapod (trade name) using, a cylindrical chute or the like is first attached to the top pouring opening 38 of the form 10, and then the leg portions 22 are inserted through the cylindrical chute.
A predetermined amount of concrete C is put therein.

Next, each form member 12a, 12b, 12
The predetermined lid member 32 of c, 12d is slid to open the opening 2
8 is opened, the rod-shaped vibrator A is inserted together with the guide pipe B, and the concrete C is sequentially compacted. In this case, it is preferable to hold the vibrator A at a position where it is inserted into the concrete C by about 10 cm for compaction (see FIG. 4).

After the compaction of the concrete C is completed, the rod-shaped vibrator A is pulled out together with the guide pipe B, the lid member 32 is slid to close the opening 28, and the lid member 32 is fixed by the pin member 36.

On the concrete thus compacted, new concrete C is introduced through the top pouring port 38 and the cylindrical chute, and this time, the opening 28 located above the opening. Is opened, and the rod-shaped vibrator A is inserted together with the guide pipe B in the same manner as described above, and the concrete C is compacted.

Then, the concrete is poured to the top pouring port 38, and when the concrete is sufficiently settled, the top end is leveled, and after curing for a predetermined period, each form member 12 may be demolded. In addition, the lid member 32 on the surface of the molded product (product)
As for the recesses and the like formed at the positions corresponding to the arrangement positions, the ironing may be appropriately performed as necessary.

[0016]

As described above, according to the modified block mold according to the present invention, the insertion portion (opening) of the rod-shaped vibrator for compacting the poured concrete is provided at a predetermined position of the mold member. Since it is openable and closable, this type of compaction work can be performed easily and efficiently from the outside regardless of the number of open surfaces, and therefore, significant labor savings can be achieved, including a reduction in the number of workers. it can.

Further, by simplifying the work, it is possible to avoid inconveniences caused by excessive use or too few vibrators, which have hitherto relied on intuition, so that there are various advantages such as improvement in quality of molded products and the like. Effect is extremely large.

Although the preferred embodiment of the modified block mold according to the present invention has been described above, the present invention is not limited to this embodiment, and various modifications are possible within the scope of the present invention. Of course, it can be modified.

[Brief description of drawings]

FIG. 1 is a perspective view of a preferred embodiment of a mold for a modified block according to the present invention.

FIG. 2 is a perspective view of a vibrator insertion opening in the mold shown in FIG.

3 is a cross-sectional view taken along line XX of FIG.

4 is an explanatory view of a usage state of a rod-shaped vibrator in the mold shown in FIG. 1. FIG.

[Explanation of symbols]

10 Formwork, 12 Formwork Member, 14
Connection part, 16 taper pin, 18 cotter pin, 20 cotter, 22 legs, 24
C-shaped clamp, 26 end plate, 28 circular opening, 30 slit, 32 lid member, 34 handle portion, 36 pin member,
A vibrator, B guide pipe, C concrete,

Claims (1)

[Scope of utility model registration request] 1. In a mold for a deformed block in which a plurality of mold members are assembled by a connecting means, a plurality of openings for inserting a vibrator are provided at predetermined positions of the mold member, and a lid is provided at these openings. A deformed block formwork in which members are arranged to be openable and closable.