JPS58143057A - Narrow safety net tensioning tool for scaffold - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] This invention provides a safe way to catch objects or people that accidentally fall between the bidet scaffolding used at building construction sites and the building skeleton (hereinafter simply referred to as the skeleton). This article relates to a tensioning device for narrow safety nets for fastening.

For workability reasons, bidet scaffolding is installed with a certain distance from the building structure.

Objects often accidentally fall between the bidet scaffolding and the building frame, and sometimes people do. If something falls, there is a risk of hitting someone below, so to prevent harm, it is common practice to place a small safety net between the building frame and bidet scaffolding. Conventionally, this was done by driving appropriate anchors into the outer wall of the structure to secure the narrow safety net, and then tying the bidet scaffolding side with wire, but this method took a long time and was It took a lot of work to clean up the scratches left by the anchors that had been driven into the structure.

The present invention aims to eliminate such inconvenience and to quickly and easily stretch a narrow safety net by hooking a simple tensioning tool onto a bidet scaffold. I will explain.

A flat steel is wrapped around the outer circumference near the upper end of the pipe holding cylinder (1) and welded, and one end is extended and bent to hold the vertical pipe (11) of the bidet scaffolding (1), and a bidet is attached to the bent part. - for hanging from above the horizontal pipe (12) of the scaffold;
A hook (3) is provided with an inverted U-shaped cutout 5 (2), and a bidet scaffolding vertical pipe (11) is installed at the bottom end.
A stopper (5) with a horizontal U-shaped notch (4) in contact with the vertical pipe (IFI) is welded to the lower end surface so that a flange is formed around it, and held against the vertical pipe (IFI). 1k (1
) and install it parallel to the vertical pipe (11) of the bidet scaffold as shown in Fig. The rod (7) is sized to fit into the inner diameter of the holding tube (1) and is fitted into the holding tube (1), and a pull-out stopper (8) is protruded in the center of the lower end of the vertical rod (7). The retaining cylinder is provided with a stopper (9) provided on the stopper (5) at the lower end of the retaining cylinder, and protrudes through the correct size (9), and a stopper nut (end) is screwed onto the protruding end.

The horizontal frame (b) of the L-shaped arm (6) has an opening (2
), insert a rod-shaped telescopic frame (to) that fits into the inner diameter of the telescopic frame (to) so that it can be inserted and removed freely, and on the outer periphery of the tip of this telescopic frame (to), a folding α◆ for attaching a narrow safety net (gin) is provided. A similar fold (2) is provided above the base end of the horizontal frame (B) of the L-shaped arm (6) on the opposite side.

In addition, cut grooves α are provided at several places on the upper end surface of the holding 11 (1), and at one place on the upper circumference of the vertical bar (7) in contact with this upper end surface of the L-shaped arm (6), A positioning piece aη that fits into the cut groove (to) is provided to protrude downward, and this positioning piece (goods) holds the L-shaped arm (6) with the stopper nut ) until it touches the bottom surface of the L-shaped arm (6), rotate it left and right and fit it into each notch αQ, so that the horizontal frame (2) of the L-shaped arm (6) can be oriented not only in the front direction but also in the imaginary - in Figure 2. As shown, the positioning is performed by moving left and right by 45° or 90°.

(B) is a reinforcing stay diagonally welded to the lower end of the L-shaped horizontal frame Q, and its lower end is attached to the above-mentioned holding ftf & (
Along the outer circumference of the lower end of 11, and further on the lower end surface, there is a stopper (5).
An arc-shaped abutment piece (11) that abuts on the upper surface of the flange is welded. (E) This is for fixing the telescopic rod at a position where it is pulled out an appropriate amount from the horizontal frame C1v with a bevel head screw.

The structure described above shows an example of implementation, and in order to obtain the same effect, various other structures with different structures can be manufactured without departing from the gist of the present invention.

As shown in Fig. 9, the present invention is used by hanging an appropriate number of bidet scaffolds in a row horizontally by hooking them onto bidet scaffolds (OF) installed at an appropriate distance 11 (8) on the outside of the frame (3). Something,
Since the telescopic frame can be easily adjusted in and out according to the spacing (8), the narrow safety net can be effectively stretched across the entire spacing, resulting in extremely high safety. Since it is a simple task of hanging, the time required for tensioning is minimal, and the L-shaped arm can be easily moved from the front to the left and right, 90 degrees, 45 degrees, so it is easy to adjust the structure. Even if the outer wall is complex, it can be erected freely according to the structure.

In addition, to remove the tensioning equipment of the present invention, pull the lower end of the holding tube (1) slightly toward you, and insert the opening part (4) into the vertical pipe (νl) of the bidet scaffolding. It can be easily removed by pulling it apart, then lifting the holding cylinder (1) a little, and removing the notch (2) of the hook (3) from the horizontal pipe (12) of the bidet scaffold.

As described above, the present invention has a very simple structure, is easy to use, can be freely applied to a wide range of conditions, is extremely convenient and useful, and has a great effect on improving safety at construction sites.

[Brief explanation of drawings]

FIG. 1 shows an embodiment of the present invention, and FIG.
Fig. 8 is a front view, Fig. 4 is a sectional view of Moum' in Fig. 1, Fig. 5 is a sectional view taken along line B-1' in Fig. 1, and Figs.
FIG. 8 is a perspective view of the constituent members of the tensioning tool of the present invention, and FIG. 9 is an explanatory diagram of the state of use. l...Holding cylinder 2...Notch part 8...Hooking metal fitting 4
・・Kiribi part 5・・Patch 6・・L-shaped arm 7
・Vertical bar 8・Dullout is a stop lot 9・・Dullout is correct size lO
11...Horizontal bar 12...Opening part
18.. Telescopic frame 14.. Folding 15.. Folding 16.
・Cut groove 17・Positioning piece 18・Reinforcement stay 1
F. Contact piece 20. Lock screw... Narrow safety net) 1. Bidet scaffolding 11. Vertical bar of bidet scaffolding y
2.Bidet - Horizontal frame of scaffolding! ...Main body S...Ma, plow. Patent applicant Kazube Miyake Patent attorney Osamu Mihara (External IQi 1st
Figure 2 Figure 1~. 1, /' Fig. 8 Fig. 6 Fig. 8 Fig. 4 Fig. 1 Fig. 7] Fig. F, II ”

Claims (1)

[Claims] Bidet - The vertical frame of the L-shaped arm is fitted into a cylindrical holding tube that is hooked onto the horizontal pipe of the scaffolding and attached to the vertical pipe, so that it can rotate left and right and is fixed at an appropriate position. A telescopic rod is inserted into the horizontal frame so that it can be inserted and removed from the front end opening, and hooks for attaching narrow safety nets are provided at the base end of the horizontal frame and the tip of the telescopic rod. Narrow width safety net tensioning equipment for bidet scaffolding, featuring: