JPS5935367Y2 - Concrete block gutter formwork - Google Patents

Description

[Detailed description of the invention] This invention relates to formwork for concrete block gutters.

Drainage channels constructed using concrete block gutters (hereinafter referred to as gutters) generally have the same size and shape.

Depending on the site conditions, some of the side ditches in the drainage channel will need to be shaped differently.

For example, when one drainage canal is passed over the other at a point where the drainage canals intersect, the gutter of one drainage canal at the top will be suspended over the gutter of the other drainage canal at the bottom, so there is a need for strength. The bottom part needs to be thicker.

Therefore, only the gutter at that point has an irregular shape, and in the factory production of gutter, it is economically disadvantageous to add the production of one to several irregularly shaped gutter to the production of a large number of gutter of the same shape.

Therefore, this idea was developed so that the outer wall and wall thickness of the drain channel formwork, which has the same inner periphery dimensions and shape in cross section, can be freely changed to form an irregularly shaped gutter. In other words, the shape and dimensions of the inner circumferential wall 1 in the U-shaped gutter a in FIG. 5 are exactly the same as in the U-shaped gutter a in FIG. 2
There are differences in the gutter C in Fig. 6, which has a thicker side wall 3, the gutter a in Fig. 7, which has a thicker lower part 4, and the gutter f in Fig. 9, which has a step board 5 protruding from one side wall. Install side ditches in a part of the drainage canal, mainly ditch a, so that
When d and f are adopted, the above objective can be achieved by replacing the irregularly shaped outer frame with the same inner frame or by making it movable.

Among the formworks of this invention, the inverted U-shaped longitudinal inner formwork 6 has horizontal frames 8 between vertical frames 7 and vertical bars 7, which are made of angle plates, on both sides of the bottom, as shown in Figures 1 to 3. It is held firmly.

At the front and back of the outer surfaces of both vertical frames 7, support stands 9 for outer form frames are provided projecting with their upper surfaces horizontal.

The outer formwork 10 has a bottom frame 11 of an angle plate on the bottom surface, and a bearing stand 12 is installed vertically in contact with the support stand 9, and the bearing has a shaft 13 inserted into the stand 12, and the shaft 13 is inserted into the support stand 9 along the protruding direction. Long hole 14 provided
When the outer formwork 10 is slid through the elongated hole 14, the lower surface of the inner side (the side facing the inner formwork 6) of the outer formwork 10 does not come into contact with the vertical frame 7, as shown in Fig. 3. If they are separated from each other, the width plate 15 is the width between the inner lower surfaces of the inner and outer formworks 6 and 10 and the length of the formwork.
are fitted, and end frame plates 16 are fitted to the front and rear end surfaces of the inner and outer formworks 6, 10.

This fitting is achieved according to common means.

The inner surface of the outer formwork 10 has one side wall 3 on a step in the side gutter e in FIG. 8, a side groove g in FIG. .14.15 In the side grooves j and l, one side wall 3 is deformed high as shown, and in the side grooves m and n in figure 16.17, the outer formwork 10 is only on one side of the inner formwork 6. For the side gutter 0+ptq in Figures 18, 19, and 20 and the side grooves r and s in Figures 21 and 22, the outer formwork 10 modified as shown is used.

According to the above-mentioned outer formwork 10, the outer formwork 1o can be freely spaced from the inner formwork 6 along the long hole 14 with the shaft 13, and thereby the thickness of the side wall of the gutter can be selected.

Furthermore, since it can be rotated outward using the shaft 13 as a fulcrum, the side groove e
.

The outer surfaces such as k, r, and s can be preempted.

Furthermore, by changing the type of outer formwork 10, it is possible to manufacture side gutters with the same inner peripheral shape but different outer surfaces.

[Brief explanation of the drawing]

Fig. 1 is a front view of the formwork of this invention, Fig. 2 is a side view of the same as above, Fig. 3 is a partial view of Fig. 1, and Figs. Figures 9 to 9 show gutter examples using the same inner form, and Fig. 4 shows gutter a, Fig. 5 gutter b, Fig. 6 gutter C1, Fig. 7 gutter d, and Fig. 8 gutter e.
Fig. 9 is an end view of the side gutter f, and Figs. 10 to 12 show examples of the gutter using the same inner formwork.
1 is a gutter h, FIG. 12 is an end view 7 of a gutter i, and FIGS. 13 to 15 show examples of gutter using the same inner formwork.
Figure 3 is a side gutter j, Figure 14 is a side gutter k, and Figure 15 is a perspective view of a side gutter I. Figures 16 to 20 show examples of a side gutter using the same inner formwork, and Figure 16 is a side gutter m, a side gutter 17. The figure shows the side gutter n, and Figure 18 shows the side gutter. , Fig. 19 is an end view of the gutter P, Fig. 20 is an end view of the gutter q, Figs. 21 and 22 are examples of the gutter using the same inner mold, Fig. 21 is the gutter, and Fig. 22 is the gutter S. Each perspective view. In the figure, 1 is the inner peripheral wall, 2 is the outer peripheral wall, 3 is the side wall, 4 is the bottom plate,
5 is a footboard, 6 is an inner form, 7 is a vertical frame 8, a horizontal frame, 9 is a support stand, 10 is an outer form, 11 is a bottom frame, 12 is a bearing stand, 13
is the shaft, 14 is the long hole, 15 is the width board, and 16 is the end frame board.

Claims (1)

[Scope of utility model registration request] The bearings attached to the bottom surface of the outer formwork 10 are attached to the support stands 9 that project horizontally on both sides of the underframe to which the inner formwork 6 is attached, and the support stands 12
The shaft 13 is formed in the long hole 14 provided in the support base 9 in the protruding direction.
A formwork for a concrete block side gutter in which various outer formworks 10 can be installed in opposition to the same inner formwork 6 so as to be able to move toward and away from the same inner formwork 6 by being fixed so as to be slidable and rotatable.