JP3810466B2 - Method and apparatus for manufacturing lifting reversal hole forming tool - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is relatively heavy, such as a U-shaped groove made of concrete, lifts a large concrete product at two points of the center of gravity located on its side wall, and makes one turn to form a lifting reversal hole for moving and transporting The present invention relates to a manufacturing method and a manufacturing apparatus for a forming tool.
[0002]
[Prior art]
Conventionally, a concrete product in which a lifting reversal hole that can be lifted and reversed is formed at the center of gravity is generally known. The concrete product, particularly the concrete U-shaped groove, is manufactured by placing the concrete 11 between the inner mold and the outer mold to which the lifting hole reversing forming tool is attached. As shown in FIG. 10, the seed lifting reversal hole forming tool 8 is formed of a pipe-shaped lifting reversal hole forming base and a disk-shaped anchor 13 attached approximately in the middle of the lifting reversal hole forming base. ing.
[0003]
Here, in the manufacture of the lifting reversal hole forming tool 8, a pipe-shaped lifting reversal hole forming base is first cut to a predetermined length, and then formed into a disk shape in advance and a plurality of holes are drilled. At the same time, the anchor 13 with the base piece bent to the left and right is attached to the lifting reversal hole forming base and fixed by welding or the like at the intermediate portion of the lifting reversal hole forming base. However, such a conventional lifting reversal hole forming tool 8 has a large manufacturing process and the number of parts, so that the manufacturing cost becomes expensive, and the carrying work and the storage are bulky. There was a problem that the storage efficiency was not so good.
[0004]
The present invention was devised in order to solve such a problem.Since the manufacturing process is simple and the number of parts is single, the manufacturing cost can be reduced and the product is not bulky. Suspension reversal that has very good storage efficiency and can lift and reverse concrete products such as concrete U-shaped grooves embedded with the lifting reversal hole forming tool according to the present invention safely and simply as before. It is an object of the present invention to provide a manufacturing method and manufacturing apparatus for a hole forming tool, as well as a manufacturing apparatus for a concrete product with a lifting reversal hole.
[0005]
[Means for Solving the Problems]
The present invention relates to a lifting and lowering hole forming substrate that is supported by a cylindrical pipe-shaped lifting and reversing hole forming base that is open at both ends and inserted into a supporting rod that is shorter than the lifting and reversing hole forming substrate. The outer periphery of the gap is covered with a mold, and a gap portion substantially the same as the outer shape of the lifting reversal hole forming base is formed in the mold, and a ring-shaped recess is formed in a substantially middle portion in the longitudinal direction of the gap portion. A hollow space projecting portion that is formed into a hollow space portion and then bulges into the hollow space portion by pressing in the longitudinal direction the length of the held lifting reversal hole forming base body protruding from the tip of the support rod. Is formed in a lifting reversal hole forming base, and a cylindrical pipe-shaped lifting reversal hole forming base having both ends opened is longer than the vertical lifting reversal hole forming base. and passed through a short support bars of covered, said outer periphery of lifting inverted hole forming substrate held on the support rod Covered with a mold having a length substantially equal to the height of the Jibo, the tip of the lifting inverted hole forming substrate becomes protrude protrudes on the upper surface of the support rod and the mold, inside the mold, the A gap portion having a substantially cylindrical shape with the same outer shape as the lifting reversal hole forming base is formed, and a hollow space portion that is recessed in a ring shape is formed at substantially the middle of the gap portion, and then held by The tip of the lifting reversal hole forming substrate is pressed to compress the lifting reversal hole forming substrate to the upper surface position of the mold, and the lifting reversal hole forming substrate forming meat is bulged in the hollow space to start a business trip. A cylindrical pipe-shaped lifting reversal hole forming base body that is open at both ends;
A support bar that is vertically arranged and is inserted through and held from the opening of the lifting reversal hole forming base and has a shorter length than the lifting reversal hole forming base, and a lifting reversal hole forming base held by the support bar. A mold having substantially the same height as the support rod covering the outer periphery, a gap formed in the mold and having a substantially cylindrical shape with the same outer shape as the lifting reversal hole forming base, and the gap A hollow space that is recessed in a ring shape, formed in a substantially intermediate portion, and a lifting reversal hole forming base that is held by the support rod and protrudes from the upper surface position of the support rod and the mold is extended to the upper surface position of the mold. A cylindrical pipe-shaped suspension opening at both ends, and a swelling travel portion formed by deforming the lifting reversal hole forming base body in the hollow space portion and compressing in the vertical direction. An upper inversion hole forming substrate;
A support rod that is vertically arranged and has a diameter substantially the same as the hollow portion of the pipe that is held through the hollow portion of the lifting reversal hole forming base and is shorter than the suspension reversal hole forming base, and is held by the support rod. A mold having substantially the same height as the support rod covering the outer periphery of the lifted reverse hole forming substrate, and a substantially cylindrical shape having the same outer shape as the lifted reverse hole forming substrate formed in the mold. A gap portion formed, a hollow space portion that is recessed in a ring shape, formed in a substantially middle portion of the gap portion, and a lifting reversal hole that is held by the support rod and the tip portion protrudes from the upper surface position of the support rod and the mold A lifting reversal hole forming tool, comprising: a base for compressing the base body in the length direction to the upper surface position of the mold, and a swollen business trip portion formed by deforming the lifting reversal hole forming base in the hollow space portion. The lifting reversal hole forming tool formed by the manufacturing apparatus of the present invention, and fixing the lifting reversal hole forming tool And concrete,
It is characterized by comprising.
(Function) In the present invention, the cylindrical pipe-shaped lifting reversal hole forming base body 1 having both ends opened is passed through the support rod 2, and the outer periphery of the lifting reversal hole forming base body 1 held by the support rod 2 is formed as a mold. 3 and 3, and in the molds 3 and 3, a gap portion 4 that is substantially the same as the outer shape of the lifting reversal hole forming base 1 is formed, and in the middle portion in the longitudinal direction of the gap portion 4 A hollow space portion 5 that is recessed in a ring shape is formed, and then an expansion business trip portion 7 that bulges into the hollow space portion 5 by pressing the protruding tip portion 9 of the held lifting reversal hole forming substrate 1. Is formed in the lifting reversal hole forming substrate 1.
[0006]
Therefore, the manufacturing process can be simplified and the number of parts can be single. As a result, the manufacturing cost can be made extremely low, and the product is not bulky, so that its transport efficiency and storage efficiency can be greatly improved.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on an embodiment shown in the drawings. In the figure, reference numeral 1 denotes a lifting reversal hole forming substrate. The lifting reversal hole forming substrate 1 has a substantially cylindrical pipe shape with both ends opened, and is cut into a predetermined length in advance.
[0008]
Next, reference numeral 2 denotes a support bar, and the support bar 2 protrudes substantially vertically from the bottom surface of the mold 3. The diameter of the support rod 2 is substantially the same as the pipe inner diameter of the lifting reversal hole forming substrate 1. Further, the height of the support bar 2 is shorter than the length of the lifting reversal hole forming base body 1, so that when the support bar 2 is held through the lifting reversal hole forming base body 1, the lifting reversal hole is formed. The tip 9 of the forming substrate 1 is configured to protrude beyond the support rod 2.
[0009]
Further, reference numeral 3 denotes a mold, and the mold 3 is divided into two, and a gap 4 is provided so as to surround the outer periphery of the supported lifting reversal hole forming base 1 (particularly, (See FIG. 6). Thus, the outer shape of the gap 4 is formed to be substantially the same as the outer shape of the lifting reversal hole forming substrate 1 to be enclosed.
[0010]
Furthermore, a hollow space portion 5 formed as a ring-shaped hollow is formed in a substantially intermediate portion of the gap portion 4. In the above, the manufacturing method of the lifting inversion hole forming tool concerning this invention is described. The lifting reversal hole forming substrate 1 is inserted into the vertically extending support rod 2 to hold the lifting reversal hole forming substrate 1 substantially vertically (see FIG. 1).
[0011]
At this time, as described above, the tip end portion 9 of the lifting reversal hole forming base body 1 is slightly protruded and held from the support rod 2 (see FIG. 2). From this state, the two-part mold 3 is set so as to match each other and surrounds the lifting reversal hole forming substrate 1 (see FIG. 2). Next, as can be understood from FIG. 3, the compression tool 6 is pushed down from above, and the tip end portion 9 of the set lifting reversal hole forming base 1 is crushed to the upper surface of the mold 3.
[0012]
Then, the lifting reversal hole forming base body 1 is deformed, and a swollen business trip projecting portion 7, which is a ring-shaped ridge along the recessed space portion 5 recessed in a ring shape in the mold 3, is formed. Thereafter, as shown in FIG. 4, the mold 3 is opened, and the produced lifting reversal hole forming tool 8 may be taken out. By the way, in this manufacture, as can be understood from FIGS. 5 and 6, if a plurality of gaps 4... Are formed in the mold 3, a plurality of lifting reversal hole forming tools 8. Can be manufactured.
[0013]
Moreover, as shown in FIG. 8, it is also possible to provide a plurality of swollen business trip portions 7 on the lifting reversal hole forming base 1, and if a plurality of swollen business trip portions 7. In the concrete 11, the mounting strength is excellent.
[0014]
【The invention's effect】
As described above, according to the present invention, since the manufacturing process is simple and the number of parts can be reduced, the manufacturing cost can be reduced, and the manufactured product is not bulky. The concrete product such as a concrete U-shaped groove in which the lifting reversing hole forming tool according to the present invention is embedded can be safely and easily lifted and reversed as before.
[Brief description of the drawings]
FIG. 1 is an explanatory view (No. 1) showing a use state of the present invention.
FIG. 2 is an explanatory diagram (part 2) illustrating a use state of the present invention.
FIG. 3 is an explanatory diagram (part 3) illustrating a use state of the present invention.
FIG. 4 is an explanatory diagram (part 4) illustrating a use state of the present invention.
FIG. 5 is a configuration explanatory view (No. 1) showing a usage state of a mold according to the present invention.
FIG. 6 is a configuration explanatory view (No. 2) showing a usage state of a mold according to the present invention.
FIG. 7 is a schematic cross-sectional view showing a configuration of a lifting reversal hole forming tool according to the present invention.
FIG. 8 is a schematic cross-sectional view showing another configuration of the lifting reversal hole forming tool according to the present invention.
FIG. 9 is an explanatory view showing a state where the lifting reversal hole forming tool according to the present invention is embedded in the side wall of the U-shaped groove and the lifting reversal operation is performed.
FIG. 10 is an explanatory view showing a state in which a lifting reversal hole forming tool according to a conventional example is embedded in a side wall of a U-shaped groove and a lifting reversing operation is performed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lifting inversion hole formation base 2 Support rod 3 Die 4 Crevice part 5 Indentation space part 6 Compression tool 7 Expansion business trip part 8 Lifting inversion hole formation tool 9 Tip part 11 Concrete 13 Anchor

Claims (4)

A cylindrical pipe-shaped lifting reversal hole forming base having both ends opened is inserted into a support bar having a length shorter than that of the lifting reversal hole forming base, and the outer periphery of the lifting reversal hole forming base held by the support bar is made of gold. Cover with mold,
In the mold, there is formed a gap portion that is substantially the same as the outer shape of the lifting reversal hole forming substrate, and a hollow space that is recessed in a ring shape is formed in a substantially middle portion in the longitudinal direction of the gap portion. Next, the lifted reversal hole forming substrate is formed as a lifting reversal hole forming substrate by pressing the held lifting reversal hole forming substrate in the longitudinal direction by the length protruding from the tip of the support rod and bulging into the hollow space portion. A method for manufacturing a lifting reversal hole forming tool, characterized in that it is formed. A cylindrical pipe-shaped lifting reversal hole forming base that is open at both ends is covered with a vertically extending support rod having a length shorter than that of the lifting reversal hole forming base and is suspended by the support rod. The outer periphery of the inversion hole forming substrate is covered with a mold having a height substantially equal to the length of the support rod, and the tip of the lifting inversion hole forming substrate protrudes from the upper surface of the support rod and the die,
In the mold, a gap portion having a substantially cylindrical shape with the same outer shape as the lifting reversal hole forming base is formed, and a hollow space that is recessed in a ring shape is formed in the middle of the gap portion. Next, the tip of the held lifting reversal hole forming substrate is pressed to compress the lifting reversal hole forming substrate to the upper surface position of the mold, and the lifting reversal hole forming substrate forming meat is formed in the hollow space portion. A method for producing a lifting reversal hole forming tool, characterized in that a swollen business trip projecting portion is formed by bulging the bulge. Cylindrical pipe-shaped lifting reversal hole forming base having both ends open,
A support bar that is vertically installed and has a shorter length than the lifting reversal hole forming substrate that is inserted and held from the opening of the lifting reversal hole forming substrate ;
A mold having a height substantially equal to that of the support rod covering the outer periphery of the lifting reversal hole forming substrate held by the support rod ;
A gap portion formed in the mold and having a substantially cylindrical shape with the same outer shape as the lifting reversal hole forming base, a hollow space recessed in a ring shape formed in a substantially middle portion of the gap portion,
A lifting reversal hole forming base that is held by the support bar and whose tip protrudes from the support bar and the mold upper surface position is compressed in the length direction to the upper surface position of the mold, and the lifting reversal hole is formed in the hollow space. A swollen business trip section formed by deforming the forming base;
An apparatus for manufacturing a lifting reversal hole forming tool. Cylindrical pipe-shaped lifting reversal hole forming base having both ends open,
A support rod shorter in length than the suspension reversal hole forming substrate , which is vertically arranged and has a diameter substantially equal to a pipe hollow portion held through the pipe hollow portion of the suspension reversal hole formation substrate ;
A mold having a height substantially equal to that of the support rod covering the outer periphery of the lifting reversal hole forming substrate held by the support rod ;
A gap portion formed in the mold and having a substantially cylindrical shape with the same outer shape as the lifting reversal hole forming base, a hollow space recessed in a ring shape formed in a substantially middle portion of the gap portion,
A lifting reversal hole forming base that is held by the support bar and whose tip protrudes from the support bar and the mold upper surface position is compressed in the length direction to the upper surface position of the mold, and the lifting reversal hole is formed in the hollow space. A swollen business trip section formed by deforming the forming base;
A lifting reversal hole forming tool formed by a lifting reversal hole forming tool manufacturing apparatus comprising:
Further comprising a concrete fixing the the hanging on reversing hole forming tool, and
An apparatus for producing concrete products with lifting reversal holes.

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