JPH06238649A - Hanging-up hole forming device - Google Patents

Abstract

PURPOSE:To perform the taking-out and putting-in of a screw within a short time and to shorten the forming time of a concrete block by providing a holding rod in the attaching pipe provided to a hanging-up hole forming pipe and providing an insertion holding lever so as to continue to the base end thereof and providing the nut-shaped support member threaded with a male screw part. CONSTITUTION:The hole forming pipe 12 of a hanging-up hole forming member 11 is constituted of a long pipe and an anchor 14 is attached to the intermediate outer periphery of the pipe part 12. An attaching pipe part 13 is provided in juxtaposition with the hole forming pipe part 12 and has length almost 1/2 or less of that of the pipe part 12 and the opening end 15 of the attaching pipe part 13 is made flush with the opening end 16 of the hole forming pipe part 12. A holding rod 20 is inserted in the female screw part 19 of a nut-shaped support member 17 and a holding part 21 is allowed to protrude to the interior of the pipe part 13 so as to pierce the attaching hole 18 of a form 1. At this time, the female screw part 19 and the male screw part 22 of the holding rod 20 are threaded to fix the hanging-up hole forming member 11 to the side wall 10 of the form 1. Next, the attaching pipe part 13 is externally fitted to the protruding holding part 21.

Description

Detailed Description of the Invention [Industrial applications]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hoisting hole forming device for forming hoisting holes used for hoisting and transporting on both sides of a concrete block, for example.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 2, an apparatus of this type is attached to both side walls 2 and 2 of a concrete block forming frame 1, but the concrete block to be produced is large and heavy. Therefore, in order to ensure stable lifting and transportation of the concrete block, relatively long hole forming pipes 3 and 3 have been used for inserting long lifting insertion rods.

However, if the long hole forming pipes 3 are used, they are inserted into the hole forming pipe 3 when the pipe 3 is mounted in the mold 1 and the pipe 3 is attached to the inner wall surface of the mold 1. In order to hold it, a long insertion holding rod 4 must be used.

By the way, in order to project the relatively long holding rod 4 into the mold 1 and attach it to the mold 1, the nut-shaped support member 5 for supporting the holding rod 4 on the mold 1 is also shown in FIG. As will be understood from the above, the supporting member 5 having a relatively wide width, that is, the female screw portion 7 that is screwed with the male screw portion 6 provided on the holding rod 4 must be used.

That is, in terms of strength, it is necessary to provide the supporting member 5 having the screw engaging width W which is approximately half the protruding width of the holding rod 4 protruding inside the mold 1.

[0006] However, it has been found that such a conventional device has an unexpected problem in the use condition for many years.

Generally, the production of concrete blocks is
It is carried out in a series of flow work, the work of placing the hoisting hole forming pipes 3 in the form 1, and the concrete mortar is filled in that state, and after a series of work steps, the form 1 The work for pulling out the insertion holding rod 4 attached to must be performed in an extremely short time.

However, if the support member 5 having a long screwing width W is used as in the prior art, a large amount of time is required for the screwing operation or the screw removing operation, so that the work efficiency as a whole is significantly reduced. There were challenges.

[0009]

DISCLOSURE OF THE INVENTION The present invention was devised in order to solve the above-mentioned problems of the prior art, and since the above-mentioned screwing work or unscrewing work can be carried out in a short time, concrete as a whole can be obtained. An object of the present invention is to provide a hoisting hole forming device that can significantly reduce the time required to create blocks and has no hindrance when forming hoisting holes.

[0010]

In order to achieve the above object, the present invention is configured as follows. That is,
As shown in Figure 1,

A long pipe for forming a lifting hole, and an anchor attached to the pipe for forming a lifting hole,

A mounting which is installed side by side with the lifting hole forming pipe and whose opening end is formed flush with the opening end of the lifting hole forming pipe and which has a length that is approximately half or less of the lifting hole forming pipe. Pipe for

An insertion holding rod having a holding rod inserted into the mounting pipe through the form frame, and a male screw portion and a bolt head portion continuously provided on the base end side of the holding rod. And a nut-shaped support member having a female screw portion that is screwed into the male screw portion of the insertion support rod and having a narrow screw width.

It is configured to include.

In the present invention, both the lifting hole forming pipe and the mounting pipe for holding the lifting hole forming pipe are used. In particular, the mounting pipe having a short length is used. Also, the insertion holding rod that holds this is also of short length, and since a nut-shaped support member with a narrow screwing width can be used, mounting and removal work of the lifting hole forming pipe to the formwork, That is, the screwing and unscrewing operations can be completed in a short time.

[0015]

The present invention will be described below based on the embodiments shown in the drawings.

In FIG. 1, reference numeral 10 indicates a side wall of the mold. Further, reference numeral 11 indicates a lifting hole forming member according to the present invention.

Here, the lifting hole forming member 11 is composed of a hole forming pipe portion 12 and an attaching pipe portion 13.

As will be understood from FIG. 1, the hole forming pipe portion 12 is composed of a long pipe, and an anchor 14 is attached to the middle outer periphery thereof. Further, the mounting pipe portion 13 is formed to have a length that is approximately half or less of the hole forming pipe portion 12, and the opening end 15 of the mounting pipe 13 has an opening end 1 of the hole forming pipe 12.
It is flush with the 6.

The hole forming pipe 12 and the mounting pipe 13 are provided side by side as shown in the drawing, and are firmly connected and integrated.

Further, reference numeral 17 is a nut-shaped supporting member having a narrow width, and is attached to the side wall 10 of the mold 1 so that the female screw portion 19 communicates with the mounting hole 18 formed in the side wall 10. It is installed.

The installation of the lifting hole forming member 11 on the mold 1 is carried out as follows. First, the holding rod 20
Is used.

The holding rod 20 comprises a holding portion 21 which is inserted into the mounting pipe portion 13, and a male screw portion 22 and a bolt head portion 23 which are continuously provided on the base end side of the holding portion 21. Has been done.

Here, the holding rod 20 is inserted into the female screw portion 19 of the nut-shaped support member 17, and the mounting hole 18 of the mold 1 is attached.
And the holding portion 21 is projected inwardly of the form 1.

At this time, the female screw portion 19 of the nut-shaped support member 17 and the male screw portion 22 of the holding rod 20 are screwed together to fix the lifting hole forming member 11 to the side wall 10 of the formwork 1.

Next, the mounting pipe portion 13 of the hoisting hole forming member 11 is fitted onto the protruding holding portion 21.

However, in this embodiment, as can be understood from FIG. 1, since the screwing width is extremely narrow, the screwing time can be short.

Further, after that, concrete mortar is filled in the mold 1 and, after a predetermined curing, the solidified concrete block 24 is demolded.

Although not shown, this demolding work is performed by rotating the holding rod 21 screwed to the supporting member 17 and removing it from the mold 1. Also at this time, since the screwing width Y is short, the removing work can be performed in an extremely short time.

By the way, as understood from FIG. 3, the hoisting holes 25 of the concrete block 24 are provided at a total of four places, and hoisting jigs 26 are inserted into the holes 25 and hoisted upward, and in that state. Will be transported to the construction site.

Here, since the weight of the concrete block 24 is applied to the four hoisting holes 25, the position of the mounting pipe 13 for arranging the hoisting hole forming member 11 in the form 1 is hoisted in FIG. It must be arranged so that it is located below the hole 25.

[0031]

The present invention is constructed as described above. With the lifting hole forming device according to the present invention, since the screwing work for installing the lifting hole forming member in the mold or the screw removing work for the holding rod at the time of mold release from the mold can be performed in a short time, The time for making concrete blocks can be significantly reduced.

Further, there is an excellent effect that it is possible to produce a concrete block having high product accuracy, which does not cause any trouble in forming the hoisting hole.

[0033]

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a conventional example.

FIG. 3 is an explanatory diagram showing a lifted state of a concrete block.

[Explanation of symbols]

 1 Formwork 2 Sidewall 3 Pipe for Hole Forming 4 Insertion Holding Rod 5 Supporting Member 6 Male Screw Part 7 Female Screw Part 10 Sidewall of Formwork 11 Lifting Hole Forming Member 12 Hole Forming Pipe Part 13 Mounting Pipe Part 14 Anchor 15 Opening end of mounting pipe 16 Opening end of hole forming pipe 17 Supporting member 18 Mounting hole 19 Female screw portion 20 Holding rod 21 Holding portion 22 Male screw portion 23 Bolt head 24 Concrete block 25 Lifting hole 26 Lifting jig

Claims (1)

[Claims] 1. A long hoisting hole forming pipe, an anchor attached to the hoisting hole forming pipe, a hoisting hole forming pipe, and an opening end of the hoisting hole forming pipe. A mounting pipe formed flush with the opening end and having a length that is approximately half or less than the length of the lifting hole forming pipe, a holding rod inserted into the mounting pipe through a mold, and the holding pipe. An insertion holding rod having a male screw portion and a bolt head portion continuously provided on the base end side of the rod, and a female screw portion screwed to the male screw portion of the insertion support rod, and the screw A lifting hole forming device, comprising: a nut-shaped support member having a narrow joint width.