JP3132838U - Cone mounting tool for formwork holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cone attaching tool that can easily attach a P-con to both ends of a separator of a formwork holder, has a simple structure, and is easy to manufacture.
A receiving hole 11 into which a cone tightening screw 7 and its root portion 22 can be easily inserted is provided in an upper portion of a rod-like rotating body 10 rotated by a motor 17, and an outer periphery of an upper end portion of the rotating body 10 is provided on a cone 3. The outer cylinder 13 is fitted on the outer side of the rotating body 10 so that the wide diameter side of the cone peripheral wall can be fitted, and is rotated with the outer cylinder. It is a cone attachment tool for a mold holder in which a spring 15 having a washer 14 at the upper end is fitted between upper parts of the body.
[Selection] Figure 1

Description

  The present invention relates to a holder for fixing a concrete formwork in construction work, and relates to a tool for attaching a cone to a screw portion on both ends of a separator of the holder.

Conventionally, in order to fix a concrete formwork in a building work at regular intervals, as shown in FIGS. 4 and 5, a holder 4 in which a plastic cone 3 (P-con) is attached to both end screw portions 2 of a separator 1. Is provided between the molds 5 and 5 which are erected opposite to each other, and a support bar 6 provided on the outside of the mold is fixed by attaching a nut 8 to the tightening screw 7 projecting from the mold 5. Generally done.
Thus, in order to attach the cone 3 to the separator 1, the screw holes 9 of the cone are manually screwed into the screw portions 2 provided at both ends of the separator.

Japanese Patent No. 3571841

However, since a large number of holding tools are required for construction work of a large building, manual operation as in the past has taken a lot of work and reduced work efficiency.
Therefore, the present invention is intended to provide a tool that can be easily attached to both ends of the separator and can greatly increase the work efficiency, and that the structure is simple and easy to manufacture. .

A cone mounting tool for a form holder according to the present invention is provided with a receiving hole through which a cone tightening screw and its root can be easily inserted in the upper part of a rod-shaped rotating body, and the outer periphery of the upper end of the rotating body is a cone peripheral wall. It is formed on a conical slope that can be engaged with the inner surface, and an outer cylinder that can fit the wide diameter side of the cone peripheral wall is attached to the outer side of the rotating body, and an upper end is provided between the outer cylinder and the upper part of the rotating body. A spring with a washer is fitted, a shaft hole is provided in the center of the tray where the drive motor is installed at the bottom, the lower end of the outer cylinder is attached to the periphery of the shaft hole, and the motor drive shaft in the shaft hole is connected to the motor drive shaft. The rotating body lower end part was connected and constituted.

When the tool according to the present invention is used, it is possible to easily attach the cone to the both end threaded portions of the separator of the mold holding metal fitting, and to greatly increase the work efficiency. Thus, the structure is simple, easy to manufacture, and safe to use.
Furthermore, if a receiving tray is provided as described in claim 2, it is very convenient because a considerable amount of separator or cone can be placed in the receiving tray for installation work.

Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In FIG. 1 to FIG. 3, reference numeral 10 denotes a rod-shaped rotating body, in which an upper end of the rotating body 10 is provided with a receiving hole 11 into which the fastening screw 7 of the cone 3 and its root portion 22 can be easily inserted. The outer periphery of the part is formed on a conical slope 12 that can engage with the inner side surface 23 of the cone peripheral wall.
An outer cylinder 13 capable of fitting the wide diameter side of the cone peripheral wall is mounted on the outer side of the rotating body 10, and a coiled spring 15 having a washer 14 at the upper end is fitted between the outer cylinder 13 and the upper part of the rotating body 10. It is disguised.
Reference numeral 16 denotes a tray in which a drive motor 17 is installed at the bottom. The lower end portion of the outer cylinder 13 is mounted on a shaft hole peripheral portion 18 provided in the center portion of the tray, and the rotating body 10 is mounted on the motor drive shaft 19 in the shaft hole. Are connected to the lower end.

The method of using the tool according to the present invention will be described. The motor 17 is operated so that the rotating body 10 is rotated, the fastening screw 7 side of the cone 3 is placed in the upper end portion of the outer cylinder 13, and the cone peripheral portion Is placed on the washer 14 and the fastening screw 7 and the root portion 22 are inserted into the receiving hole 11 of the rotating body.
Thus, when one end of the separator is pushed into the screw hole 9 of the cone so as to compress the spring 15, the inner side surface 23 of the cone peripheral wall comes into contact with the conical slope 12 at the upper end of the rotating body. The cone 3 rotates by being transmitted by friction, and the threaded portion 2 at the end of the separator is screwed into the threaded hole 9.
Next, to attach another cone 3 to the opposite end of the separator 1, another cone 3 is attached to the upper end of the separator 1 while the cone 3 attached to the lower end of the separator is on the washer 14. When the screw holes 9 are pushed down together, the screw part 2 at the end and the screw hole 9 of the cone are screwed together. Thus, when the cone 3 is pulled out with the separator 1, the spring 15 returns together with the washer 14.

It is a profile screen before pushing a separator. It is a vertical screen in a state where the separator is pushed. It is a sectional side view of the whole tool. It is a side view of a holder. It is the schematic of the use condition of a holder.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Rotating body 11 Receiving hole 12 Slope 13 Outer cylinder 14 Washer 15 Spring 16 Receptacle 17 Motor 18 Receiving hole peripheral part 19 Drive shaft 23 Inner side surface of cone peripheral wall

Claims (2)

  In the upper part of the rod-shaped rotating body that is rotated by a motor, a receiving hole through which the cone fastening screw and its base can be easily inserted is provided, and the outer periphery of the upper end of the rotating body is formed on a slope that can engage with the inner surface of the cone peripheral wall. An outer cylinder that can fit the wide diameter side of the cone peripheral wall is attached to the outer side of the rotating body, and a spring having a washer at the upper end is fitted between the outer cylinder and the upper part of the rotating body. Cone mounting tool for holder.   In the upper part of the rod-shaped rotating body, a receiving hole is provided to allow easy insertion of the cone tightening screw and its root, and the outer periphery of the upper end of the rotating body is formed as a slope that can engage with the inner surface of the cone peripheral wall. An outer cylinder that can fit the wide diameter side of the peripheral wall of the cone is attached to the outside of the body, a spring having a washer at the upper end is fitted between the outer cylinder and the upper part of the rotating body, and a drive motor is installed at the bottom. A cone mounting tool for a mold holder in which a shaft hole is provided in the central part of the tray, the lower end of the outer cylinder is attached to the periphery of the shaft hole, and the lower end of the rotating body is connected to the motor drive shaft in the shaft hole. .

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