JPH0748890Y2 - Temporary columns for formwork support - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a temporary support for supporting a form support of slab concrete.

(Prior Art) For the formwork support for supporting the slab formwork and the beam formwork that are temporarily installed in the concrete construction of the building, a temporary support post such as the actual Kaisho No. 61-53456 is conventionally used. ing.
This temporary strut has a screw jack attached to the end of the pipe material.By turning the adjustment nut that is screwed into the screw rod of the screw jack, the screw rod is moved in and out of the pipe material to increase the length of the temporary strut. Can be adjusted, and the mold and the like are supported by the support plate of the screw jack.

(Problems to be solved by the invention) Then, for the temporary columns, after hardening the concrete cast on the formwork, rotate the adjusting nut to lower the screw rod into the pipe material and shorten the whole. When removing the formwork material, not only the weight of the material such as the formwork, but also the large weight of the placed concrete is applied to the temporary support column. A large load is applied to the threaded portion and the contact surface between the adjusting nut and the pipe material. Therefore, it is extremely difficult to rotate the adjusting nut for lowering the screw rod, which requires a lot of personnel and labor, and the removal of the temporary support column is a troublesome work.

The present invention has been made in order to solve the above-mentioned conventional problems, and it is possible to easily release the load at the beginning of the removal work of the temporary support pillar under a large load, and to save labor and efficiency of the temporary support pillar removal. To do.

(Means for Solving the Problems) The structure of the present invention for achieving the above object will be described with reference to the drawings corresponding to the embodiments.
At the lower end of the pillar body 1, a portion closer to one end from the center of the lever rod 3 is attached so as to be tiltable around the horizontal axis 4, and at the other end of the rod rod 3, a seat body 8 is provided at the lower end. It is characterized in that the screw rod 9 is screwed so as to be movable up and down.

(Operation) The temporary support of the present invention is erected on the floor by engaging the seats 12 and 12 under the seat plate 5 and the seat body 8 of the lever rod 3. When the screw rod 9 provided with the seat body 8 is rotated in this state, the screw rod 9 is moved up and down with respect to the lever rod 3 so that the screw rod 9 is attached to one end of the rod rod 3.
It is possible to vertically move the other end of the horizontal shaft 4, whereby the vertical position of the horizontal shaft 4, that is, the height of the column 1 can be adjusted. Therefore, it is possible to easily release the load when removing the temporary columns and finely adjust the height when the temporary columns are erected. Since the position where the screw rod 9 is provided is a longer distance than the position where the seat plate 5 of the lever rod 3 is provided, the screw rod 9 can be rotated lightly even under a large load due to the principle of the lever. it can.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 is a hollow columnar body made of a steel pipe which constitutes the main body of a temporary support column, and a short length supporting member 2 is detachably provided at the lower end thereof. A horizontally extending frame-shaped lever rod 3 is attached to the support member 2 at a position closer to one end from the center in the lengthwise direction by a horizontal shaft 4 so as to be tiltable. It should be noted that the lever rod 3 can be directly attached to the lower end portion of the column 1 by the horizontal shaft 4.

In the lever rod 3, the seat plate 5 is provided on the lower surface of the rod portion 3a which is shorter than the mounting portion by the horizontal shaft, and the longer rod portion 3b is provided.
A piece member 6 having a vertical screw hole 6a screwed therein is rotatably provided by horizontal pins 7 and 7 in a direction traversing the rod portion 3b. 6a includes a screw rod 9 having a trapezoidal seat body 8 rotatably provided at the lower end.
Is screwed, and the screw rod 9 is rotated to move up and down,
The position of the seat 8 can be moved up and down.

As shown in the figure, the pillar 1 is generally provided with a screw jack 11 which is moved up and down by the rotation of an adjusting nut 10 at its upper end,
Although the substantial length of the hollow columnar body 1 can be adjusted by raising and lowering the screw jack, other known means such as a drop jack can be applied as the means for adjusting the length. The length adjusting means may not be applied.

In order to support the formwork and the like by the temporary support columns of the present invention, as shown in FIG. 1, a wooden board having a seat plate 5 on one side of the lever rod 3 and a seat body 8 on the other side placed on the floor surface, The column 1 is placed upright on the seats 12, 12, etc., and the load is received at the upper end thereof. In this case, the height of the pillar 1 is roughly adjusted by raising and lowering the jack 11 attached to the upper end thereof, but fine height adjustment after the pillar is erected is provided on the other side of the lever rod 3. This can be done by rotating the screw rod 9 and moving the seat 8 up and down.

A large load will be applied to the temporary support pillars by placing concrete on the supported formwork. To remove the temporary support pillars, rotate the screw rod 9 of the lever rod 3 to raise the seat 8. Then, the lever rod 3 is tilted so that the side provided with the screw rod 9 is close to the floor surface as shown by the chain line in FIG. 1, and the pillar 1 is lowered. As a result, the load of the temporary support column, which is heavily loaded by the cast concrete, is released. After that, since the weight of the material such as the formwork is applied to the temporary support, it is easy to turn the adjustment nut 10 to lower the jack 11, and the removal of the temporary support is labor-saving and efficient. You can do it.

(Effects of the Invention) As described above, the temporary support column of the present invention is mounted on the lower end of the column body at a position closer to one end from the center of the lever rod so as to be tiltable about the horizontal axis and at the same time, the lever rod. At the other end, a screw rod with a seat at the lower end is screwed up and down so that the seat rod can be raised and lowered by simply rotating the screw rod provided at the lever rod. The substantial height of the body can be adjusted, and the fine height adjustment of the temporary columns after standing can be easily performed on the standing floor surface. In addition, when removing the temporary support column that receives a large load, if you rotate the screw rod so as to raise the seat body relative to the lever rod, the lever rod tilts about the horizontal axis, thereby Since the pillar is lowered, the load on the temporary pillar can be released easily and easily by applying the boom. Therefore, the work of removing the temporary support columns can be labor-saving and efficient.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the temporary support of the present invention, and FIG. 2 is a sectional view taken along the line AA in FIG. 1 …… Cylindrical body, 3 …… Paper rod, 4 …… Horizontal axis, 6 …… Body member, 8…
… Seat, 9 …… Screw rod

Claims (1)

[Scope of utility model registration request] 1. A portion of one end of the columnar body which is closer to one end than the center of the rod is attached to the lower end portion of the column body so as to be tiltable about a horizontal axis.
A temporary strut for formwork support or the like, wherein a screw rod having a seat at the lower end is screwed to the other end of the lever rod so as to be able to move up and down.