JPS5912351Y2 - Work aids for ceiling construction - Google Patents

Description

[Detailed explanation of the invention] This invention relates to a new work aid (auxiliary stand) that acts as an assistant for ceiling work, especially work that cannot be done by one worker and requires an assistant. be.

For example, when attaching members such as crosspieces and appliances to the ceiling, the main worker fixes these members, but it is necessary for an assistant to support the members so that they do not move at the mounting position on the ceiling.

This invention attempts to use a device to provide the necessary help from an assistant.

Examples of this invention will be described below based on the attached drawings.
In FIG. 1, A is a column with legs, and B is a pedestal mounted and connected to the upper end of the column A.

The column A is a telescopic type consisting of an outer pipe 1 and an inner pipe 2, and can be fixed at a desired extension position, and the outer pipe 1 has legs 3 at the lower end so that the column can stand up on the floor. It is.

The structure of the outer pipe 1 and the inner pipe 2 is that they are expandable and can be fixed at an appropriate length, and the upper end of the outer pipe 1 is supported by a latch 4. It is also passed.

As shown in FIG. 3, a cutout step 5 is formed at the upper end of the outer pipe 1. As shown in FIG.

On the other hand, the latching fitting 4 is formed by bending a ring a cut out from a metal wire into a step shape so as to follow the shape of the end surface of the outer pipe 1, and has a protrusion b facing inward and upward at the lower horizontal part. is provided.

The inner pipe 2 is provided with multi-stage positioning holes 6 into which the protrusions b of the latch 4 fit.

A rod piece 8 hanging down from the lower surface of the receiving part 7 of the pedestal B is attached to the upper end of the inner pipe 2, and a coil spring 9 is loaded inside the inner pipe 2 near the upper end. It is received by a pin 10 inserted through the pipe, and the lower end of the rod piece 8 on the pedestal is received by a coil spring 9.

Incidentally, casters can be attached to the legs 3 at the lower end of the column A by using the vertical tube portion 11 at the tip to make it movable.

This invention has the above-mentioned structure, and this work aid has a pedestal mounted and connected to the upper end of a column with legs that can be expanded and contracted and fixed at a desired extension position, with a coil spring interposed. When using, place the parts to be attached to the ceiling on pedestal B.
Place it on top (not only one but two or more work support tables may be used), and the column A is extended, that is, the inner pipe 2 is pulled up and the pedestal B (the member placed on it) reaches the ceiling. When the inner pipe 2 is pulled up, the protrusion b located on the lower horizontal part of the latching fitting 4 and fitted into the positioning hole 6 of the pipe 2 will become larger than the rectangular ring a on the latching fitting.
Since the pipe 1 is bent stepwise to form a rectangular ring that follows the end shape of the pipe 1, the latch 4 located at the broken line in FIG. As it is lifted up, it finally slips out of the positioning hole 6, and when it is gently lowered at the desired extension position, the protrusion b of the latch fitting fits into the lowermost positioning hole above the latch fitting 4, making it impossible to lower it. .

Moreover, when the inner pipe 2 is pulled up with the member placed on the pedestal B, and then pulled up further with the pedestal part in contact with the ceiling, the coil spring 9 in the inner pipe is compressed against its elasticity, and the next By gently lowering the inner pipe and fixing it with the latch 4, the coil spring 9 pushes up the pedestal B with its compressed elasticity, and the mounted member is supported in pressure contact with the ceiling. At the same time, the ring of the latching fitting 4 is bent in a step shape that follows the shape of the upper end surface of the outer pipe 1, so that the inner pipe 2 is received by the outer pipe 1 via the latching fitting 4. In this state, the latch 4 supports the weight of the inner pipe 2, but since the ring a has the stepped bend, the latch 4 supports the weight of the inner pipe 2 when it is fitted to the upper end of the outer pipe 1.
However, there is an advantage that there is no fear that the protrusion b will move in the direction that it comes off, so it is stable, and that only one worker can attach the member to the ceiling.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an example of the work aid according to the present invention;
The figure is a partially cutaway enlarged vertical cross-sectional view of the main part of the same as above, and FIG. 3 is an exploded perspective view of the main part of the same. A...Column body, 1...Outer pipe, 2...
...Inner pipe, 3...Legs, 4...
Latching bracket, b... Protrusion, 6... Positioning hole, B... cradle, 8... Hanging bar piece,
9... Coil spring, 10...
Fixing pin.

Claims (1)

[Scope of utility model registration request] In a certain work aid, the column consists of an inner pipe and an outer pipe, and
A notched stepped portion is formed on the upper end surface of this outer pipe, a ring formed from a metal wire is bent in a stepped shape along the shape of this end surface, and a protrusion facing upwardly inward of the outer pipe is provided on the lower horizontal portion of the ring. A work aid for ceiling construction, characterized in that the ring is placed on the end face of the outer pipe, the inner pipe is inserted into the outer pipe, and the protrusion is engaged with a hole provided in the inner pipe.