JPS6136592Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a connecting metal fitting for paper forms used in a slope protection method in which mortar or concrete (hereinafter simply referred to as mortar) is sprayed onto the slope in order to protect the slope. Regarding improvements.

It is known to protect the slope by building a lattice-like mortar structure on the slope.
It is also known to use water-resistant cardboard, such as a rectangular shape, as a paper form.

For example, in the prior art shown in FIGS. 1 and 2, a large number of square paper forms 1A, 1B, . The corner portion of the paper form 1 is connected to the adjacent paper form 1 using the connecting metal fitting 3, and the end thick material 4 is connected to the inside of the paper form 1 by the connecting metal fitting 3.
For example, the pin member 5 (FIGS. 3 to 5)
Fix it with. Then, the two adjacent paper forms 1,
Reinforcing bars 6, .

By the way, conventional connecting fittings of this type have a cross-shaped shape as shown in FIGS. 3 to 5.

That is, the pin insertion key-shaped part 31 is located within the paper form 1 and is fixed together with the end piece 4 by the pin member 5.
a, a pair of upper and lower horizontal rods 31, 31 separated by an appropriate distance, and left and right rods perpendicular to the horizontal rods 31, 31, separated by an appropriate distance and fixed to the horizontal rods 31, 31 by welding or the like. A pair of vertical bars 32,3
It consists of 2.

Reinforcing bars 6, .

In this case, the reinforcing bars 6 are usually 4 to 5 m long, which is the length of three or four paper forms 1, so it takes a lot of effort to pass the reinforcing bars 6 through the space of the cross-shaped connecting fittings 3. It took. Particularly when the legal gradient was steep, it took even more effort.

The present invention was made in order to eliminate the above-mentioned drawbacks of the conventional connecting fittings, and its purpose is to make it possible to easily place reinforcing bars within the space of the connecting fittings, and to do so in an efficient manner. To provide a formwork connecting fitting for slope protection mortar that can perform slope protection work.

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 6 to 8, 3A is a first connecting metal member that constitutes a connecting metal fitting. It has an insertion part for a fixing pin etc., in the example shown, a key-shaped part 31a, a lower horizontal bar 31 fixed by welding etc. near the lower ends of the vertical bars 32, 32, and a lower horizontal bar 31 fixed to the end part. It is provided with an insertion part for a fixing pin etc., in the example shown, a key-shaped part 33a, into which a fixing pin etc. is inserted, and a vertical bar 32,
There is a notch T between the vertical bars 32 and 3.
It consists of upper horizontal rods 33, 33 fixed near the upper ends of 2 by welding or the like. Further, 3B is a second connecting metal member that constitutes a connecting metal fitting, which closes the cutout portion T of the upper horizontal bars 33, 33 of the first connecting metal member 3A, and is detachably attached to the first connecting metal member 3A. It consists of a fixed horizontal bar 34. In the illustrated example, the second connecting fitting 3 consists of a horizontal bar 34.
In order to removably fix B to the first connecting fitting member 3A, the horizontal rod 34 is provided with loops 34a, 34a formed by bending it, and these loops 34a, 34a are fitted into the vertical rods 32, 32. By inserting the second connecting fitting member 3B into the first connecting fitting member 3A, the second connecting fitting member 3B is removably fixed to the first connecting fitting member 3A.

In such a connecting fitting, the paper forms 1 are connected in the same manner as in the prior art using the first connecting fitting member 3A. Reinforcement is then placed from above through the notch T of the first connecting fitting member 3A, and then loops are formed in the vertical bars 32, 32 of the first connecting fitting member 3A and the horizontal rod 34 of the second connecting fitting member 3B. By fitting 34a, the second connecting fitting member 3B is fixed to the first connecting fitting member 3A. Once the reinforcement is placed, mortar is sprayed or poured in the same manner as in the prior art to construct a lattice-like mortar structure.

According to the connecting fitting of the present invention, reinforcing bars can be placed from above, so the efficiency of reinforcing work is significantly improved compared to conventional connecting fittings in which reinforcing bars must be passed through from the side. It is effective when implemented in slope protection construction methods on steep slopes that must be used for work.

[Brief explanation of the drawing]

FIGS. 1 and 2 are a plan view and a sectional view showing a state in which paper templates are arranged on a slope and connected by connecting fittings. 3, 4, and 5 are a front view, a plan view, and a side view of a conventional connecting fitting.
6, 7, and 8 are a front view, a top view, and a side view of the connecting fitting according to the present invention. 1... Paper formwork, 2... Slope, 3... Connecting fittings,
3A...First connecting fitting member, 3B...Second connecting fitting member, 31...Horizontal bar, 31a...Key shaped portion, 32...Vertical bar, 33...Horizontal bar, 33a...
...Key-shaped part, 34...Horizontal bar, 34a...Loop,
4... Thick material, 5... Pin member, 6... Reinforcing bar, 7
……mortar.

Claims (1)

[Scope of utility model registration request] A paper used to create a lattice-like mortar structure on a slope by arranging reinforcing bars at intervals and spraying or injecting mortar into the slope. A connecting fitting for connecting formwork is equipped with a pair of left and right vertical rods spaced apart at an appropriate interval, an insertion part for a fixing pin, etc. at each end, and a vertical bar. It has a lower horizontal rod fixed by welding etc. near the lower end of the rod, and an insertion part for inserting a fixing pin etc. into the end, and the part between the vertical rods is cut out, and the upper end of the vertical rod A first connecting fitting member consisting of an upper horizontal rod that is fixed by welding or the like nearby, and a cutout portion of the upper horizontal rod of the first connecting fitting member is closed and detachably fixed to the first connecting fitting member. 1. A formwork connecting fitting for slope protection mortar, characterized in that it consists of a second connecting fitting member consisting of a horizontal bar.