JPH0453406Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to supports used in architectural floor form work.

[Conventional technology and its problems]

A support 1 for a floor formwork in floor concrete work is usually erected at its upper end to support a beam member 2 or other beam member, as shown in FIGS. 5 and 6.

In the figure, numeral 3 indicates joists arranged at appropriate intervals on the upper part of the joists 2, and 4 indicates a weir plate laid on the joists 3.

With such a conventional support 1, it is impossible to remove the weir plate 4, large drawer 2, etc. on it from the mold without replacing it.

Also, remove support 1, weir plate 4 and large pull 2.
It is also a practice to remove the support 1 and then reinstall the support 1 to support the floor concrete until it has the required strength, but this method causes the floor concrete to sag when the support 1 is removed, which is not desirable in terms of quality control.

The purpose of the present invention is to eliminate the disadvantages of the conventional example,
To provide a support that allows beam members, etc. to be demolded first without changing the supporting state at the upper end of the support, thereby streamlining floor form work and improving quality.

[Means for solving problems]

In order to achieve the above object, the present invention includes an upper horizontal flange and an intermediate horizontal flange, and a round pipe between the flanges extends from the intermediate horizontal flange to the outer peripheral surface of the column. A protrusion in the vertical direction that exposes the joint surface horizontally is formed, and a somewhat larger protrusion is formed on the upper part of the protrusion at a slight distance from the protrusion. A handle protrudes from the annular plate body, and a rotation prevention protrusion protrudes from the lower surface of the annular plate body, which has a notch of a similar shape slightly larger than the cross-sectional area of the protrusion formed on the inner periphery, and the protrusion extends through the annular plate body. A cylindrical body that is slidably attached to the outer periphery of the column in the vertical direction so as to fit into the cylindrical body, and has a notch larger than the protrusion on the inner periphery, and a receiving surface on the upper surface that protrudes left and right from the cylindrical body. A receiving part for a beam member consisting of a receiving part and a horizontal flange protruding in the front and back direction at the upper end of the cylinder which also receives a part of the beam member,
It is placed on the annular plate body, and is attached to the pillar body so that it can slide up and down so that the protrusion fits into the notch, and the upper end of the protrusion is provided with a pull-out to prevent the metal holder from slipping out. The gist is that a prevention protrusion is formed.

[Effect]

According to the present invention, the annular plate acts as a stopper for vertical movement of the beam member holder, and if the inner peripheral notch of this annular plate and the joint of the protrusion do not match, the annular plate and the The beam member holder is locked in place. Further, by turning the annular plate and aligning the inner peripheral notch and the joint of the protrusion, the lock is released and the beam member and the metal fitting slide downward. As a result, the beam member or the weir plate supported by the beam member will be in a state where it can be dismantled with the lower support remaining. Note that since the annular plate is attached to the column serving as the support body without providing any slits or holes, the provision of such does not result in a decrease in strength.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Figure 1 is a front view of the main parts showing one embodiment of the support of the present invention, Figures 2 and 3 are A-A in Figure 1.
The support 5 of the present invention has an upper horizontal flange 6 and an intermediate horizontal flange 7 on its upper part 5a, and a round pipe between the flanges 6 and 7 is attached to the outer peripheral surface of the column 8. The protrusion 9 was formed to bulge in the vertical direction. This protrusion 9 rises from the flange 7 and horizontally exposes its joint surface 9a between the flanges 6 and 7.

Further, a somewhat larger protrusion 11 is formed above the protrusion 9 at a slight distance from the protrusion 9.

On the other hand, 10 in the figure indicates handle 1 slightly upward from the outer periphery.
It is an annular plate body having a protruding portion 0a and a notch 10b having a similar shape slightly larger than the cross-sectional area of the protrusion 9 on its inner periphery, and a rotation preventing protrusion 10c protruding from its lower surface. The annular plate 10 is attached to the outer periphery of the column 8 so as to be slidable in the vertical direction so that the protrusion 9 fits into the notch 10b.

Note that the thickness of the annular plate 10 is thinner than the distance between the protrusions 9 and 11.

In the figure, 12 is a support for a beam member, and a cylindrical body 1 has a notch 12a larger than the protrusion 11 on the inner periphery.
2b, a receiving part 12c which projects left and right from the cylinder 12b and has an upper surface as a receiving surface, and a horizontal flange 12d which also receives a part of the beam member and projects in the front-rear direction at the upper end of the cylinder 12b. The metal support 12 of this beam member is located on the annular plate 10, and is attached to the column 8 so as to be slidable up and down so that the protrusion 11 fits into the notch 12a. A pull-out prevention protrusion 13 is formed at the upper end of the protrusion 11 to prevent the metal holder 12 from slipping out.

Note that the upper part 5a to which the annular plate 10 and the support 12 of the beam member are attached may be constructed as an integral part with the lower part, but it may be constructed as a separate part so as to be used in conjunction with a normal support. It may also be configured as

Next, how to use it will be explained. FIG. 4 is a perspective view showing the state of use, and in the figure, 14 is a beam member, and 15 is a weir plate. The shape of the beam member 14 is not particularly limited as long as its end can be detachably supported on the upper surface of the metal holder 12 and the end of the weir plate 15 can be supported by a flange or the like provided on the side surface. As an example, it is assumed that it is made of a hollow extruded aluminum member, and a locking pin 14a is provided at the end.

Also, if the end of the weir plate 15 is hung on the beam member 14, even if it is a single piece, the frame 1
The panel 15b to which 5a is attached may also be used.

When the support 5 is erected and the annular plate body 10 is rotated on the closing surface 9a of the protrusion 9, the notch 10b and the protrusion 9
is displaced and the annular plate 10 cannot move downward. Further, the rotation of the plate body 10 is controlled by the rotation prevention protrusion 10.
When c collides with the protrusion 9, no further action can be taken.

By fixing the annular plate 10 in this manner, it acts as a stopper, and also prevents the upper beam member from moving downward of the receiving metal 12. and,
Since the protrusion 11 serving as a key fits into the notch 12a serving as a keyway, the receiving metal 12 does not go around the outer periphery of the column 8.

The latching pin 14a is inserted into the recess on the upper surface of the receiving part 12c, and the beam member 1 is attached to the receiving part 12 so that a part of the beam member 14 can be supported by the horizontal flange 12d.
4 is erected, and a weir plate 15 is further erected between the beam members 14, but in this case, the upper surface of the upper end horizontal flange 6 of the support 5, the upper surface of the beam member 14, and the upper surface of the weir plate 15 are cast without any intervention. Care should be taken to line them up closely and on the same plane so that they can directly support the lower surface of the concrete.

Floor concrete is poured, and when it hardens, the annular plate 10 is rotated by hitting the handle 10a with a tool such as a hammer until the notch 10b matches the joint surface 9a of the protrusion 9. The rotation prevention protrusion 10c is useful for this positioning.

In this way, the annular plate 10 is processed up to the intermediate horizontal flange 7 using the protrusion 9 as a guide,
Along with this, the support 12, the beam member 14, and the weir plate 1
5 will also be lowered by that amount, and the mold will be removed from the bottom of the concrete floor. Then, the beam member 14 and the weir plate 15
can be easily dismantled while temporarily supported at the intermediate horizontal flange 7 of the support 5.

[Effect of idea]

As described above, the support of the present invention allows beam members and the sheir plates installed thereon to be removed from the floor concrete without changing the support state at the upper end of the support, streamlining processes such as reusing formwork. In addition to this, it also helps improve the quality of the concrete floor by preventing it from bending.

Further, the mechanism for sliding the beam member can be made without forming holes or slits in the support body, and there is no risk of reducing the strength required for the support.

[Brief explanation of the drawing]

Fig. 1 is a front view of essential parts showing one embodiment of the support of the present invention, Fig. 2 is an end view taken along line A-A in Fig. 1,
3 is a BB line end view of FIG. 1, FIG. 4 is a perspective view showing the state of use, FIG. 5 is a front view of the conventional example, and FIG. 6 is a side view of the same. 1... Support, 2... Large pull, 3... Joist,
4... Weir plate, 5... Support, 5a... Upper part,
6... Upper end horizontal flange, 7... Intermediate horizontal flange, 8... Column body, 9, 11... Projection, 9a... Connection surface, 10... Annular plate, 10a... Handle, 10
b...notch, 10c...rotation prevention protrusion, 12...
...Bracket for beam member, 12a...Notch, 12b...
... Cylindrical body, 12c ... Receiving part, 12d ... Horizontal flange, 13 ... Extraction prevention protrusion, 14 ... Beam member,
14a... Latching pin, 15... Weir plate, 15a...
...frame, 15b...panel.

Claims (1)

[Scope of utility model registration request] An upper end horizontal flange 6 and an intermediate horizontal flange 7 are provided, and a round pipe between the flanges 6 and 7 is provided on the outer circumferential surface of the column 8, rising from the flange 7, and the joint surface 9a thereof is horizontal between the flanges 6 and 7. The exposed vertical protrusion 9 is formed in a bulging manner, and a somewhat larger protrusion 11 is formed at the upper part of the protrusion 9 at a slight distance from the protrusion 9. On the other hand, a handle 10a is formed slightly upward from the outer periphery. A rotation prevention protrusion 10 is provided on the lower surface of the annular plate body 10 that protrudes and has a notch 10b of a similar shape slightly larger than the cross-sectional area of the protrusion 9 on the inner periphery.
c protrudes, and this annular plate body 10 is attached to the outer periphery of the column 8 so as to be slidable in the vertical direction so that the protrusion 9 fits into the notch 10b. a cylindrical body 12b having a notch 12a;
A beam member receiving part 12c that protrudes left and right from the cylinder 12b and has an upper surface as a receiving surface, and a horizontal flange 12d that also receives a part of the beam member and projects in the front-rear direction at the upper end of the cylinder 12b. Hardware 12
is positioned on the annular plate body 10, and the protrusion 11
is fitted to the notch 12a so as to be slidable up and down on the column 8, and a pull-out prevention protrusion 13 is formed at the upper end of the protrusion 11 to prevent the metal holder 12 from slipping out. Support featuring.