JPS587885Y2 - Safety pin holding device for utility pole workbench - Google Patents

Description

[Detailed Description of the Invention] This invention is an invention related to improvement of a utility pole workbench, and in particular, improvement of the safety pin holding fitting 10.

Conventionally, in this type of utility pole workbench, the tread plates 2 are arranged so that two tread plates 22 can be fitted alternately to two consecutive tread plate mounting bases 1.
There were two holes for safety pins.

As shown below, the tread plate 2 is inserted into the bolt mounting holes 6 and 7 in the shape of an approximate cylindrical shape provided in the tread plate mount 1 on the right side in Fig. 1.
When the protruding bolts 3, 3 of 2 are fitted and slid to the left, the safety pin insertion hole 4 of the step stool 22 will come under the safety pin insertion hole 8 of the step plate mounting base 1, and the safety pin can be inserted. stepping stone 2
When the protruding bolts 3 and 3 of 2 are fitted into the bolt mounting holes 6 and 7 provided on the left footboard mount 1 in FIG. The structure was such that the safety pin could be inserted below the safety pin insertion hole 8 of the stand 1.

However, if you fit the protruding bolts 3, 3 of the step board 22 into the bolt mounting holes 6°7 of the left step board mount 1 and move them slightly to the left without sliding them to the right, the projecting bolts 3, 3 will attach to the left step board. The safety pin insertion hole 4 of the step stool 22 corresponds to the safety pin insertion hole ``JL8'' of the step board mounting base 1 when it is hardly caught in the bolt mounting holes 6 and 7 of the platform 1, and the worker is careless and remains safe. There was a drawback that the pin could be inserted, leading to an accident.

Therefore, the present invention is an improvement aimed at eliminating the above-mentioned drawbacks.

Embodiments of the present invention shown in the accompanying drawings will be described in detail below.

This project has two bolt mounting holes 6 formed in an approximated shape.
7 are provided at predetermined intervals, and a safety pin insertion hole 8 is provided between them.
The two footboard mounts 1, 1 provided with a holding device 12 for the safety pin 9 adjacent thereto are connected to each other on one side, and a chain is attached to one end of the connected footboard mounts 1, 1. Stop 1
7 and a tightening device 18 having a chain 19 at the other end to form a utility pole mounting body 20, and two protruding bolts 3 corresponding to the bolt mounting holes 6, 7 at the front end of the surface of the footboard 2. 3
Two safety pin insertion holes 4 and 5 are provided between and a support leg 21 is provided on the back side to form a step stool 22, and the above-mentioned utility pole mounting body 2
In the utility pole workbench, the poles 1 to 3 of the step board 22 are removably connected by fitting the protruding poles 1 to 3 of the step board 22 into the bolt mounting holes 6 and 7 of the step board 1. The support shaft 13 is attached to the support fitting 11 of the safety pin holding device 12.
The safety pin holding fitting 10 is rotatably attached to the safety pin holding fitting 10, the safety pin 9 is slidably attached to the safety pin holding fitting 10, and one side piece 16 of the safety pin holding fitting 10 is extended to one side. A safety piece 15 is provided there, and the safety piece 15 is a part of one of the two bolt attachment holes 6 and 7 provided in the footboard mount 1 (a large approximate daruma shape). It is constructed so as to cover the side hole).

In the utility pole workbench of the present invention, first, attach the utility pole mounting body 20 to any location on the utility pole using the chain hook 17, the chain 19, and the tightening device 1.
Attach with 8 etc.

Then, the protruding bolts 3, 3 of the step stool 22 are fitted into the bolt mounting holes 6, 7 of the right-hand step plate mount 1 in FIG. 1, the safety piece 15 of the safety pin holding fitting 10 will hit the head of the protruding bolt 3, and the safety pin 9 will be tilted and inserted into the safety pin insertion hole 5.
, 8 cannot be inserted.

(Fig. 8) Then, when the step stool 22 is slid to the left and the protruding bolts 3, 3 are moved to the groove side of the bolt-shaped bolt mounting holes 6, 7, that is, to the predetermined position, the safety piece 15 is moved to the head of the protruding bolts 3, 3. Since the safety pin holding fitting 10 is in a horizontal state, both corresponding safety pin insertion holes 4
, 8 can be easily inserted into the safety pin 9.

In other words, the step stool 22 is constructed so that it can be inserted into the safety pin insertion holes 4 and 8 only when it is securely attached to the step plate mount 1, and has a practical effect on safety as a utility pole work platform used for work at heights. be.

Further, the present invention has the advantage that it can be provided at low cost and in large quantities by improving only the safety pin holding fitting.

[Brief explanation of drawings]

Fig. 1 is a plan view of the tread plate mounting base with the safety pin holding device of the present invention attached, Fig. 2 is a plan view of the tread plate, Fig. 3 is its side view, and Fig. 4 is a front view of the safety pin holding device. Figure 5 is a side view, Figure 6 is a plan view, Figure 7 is a plane view with the safety pin pulled out and folded down, Figure 8 is a side view with the tread inserted, and Figure 9 is the safety pin held. FIG. 3 is an enlarged perspective view of the device. In the figure, 1 is the treadle mounting base, 2 is the treadle, and 3 is the protruding pole)
, 4, 5.8 are safety pin insertion holes, 6 and 7 are bolt mounting holes, 9 is a safety pin, 10 is a holding metal fitting, 11 is a supporting metal fitting,
12 is a holding device, 13 is a shaft, 15 is a safety piece, 20 is a utility pole mount, and 22 is a step stool.

Claims (1)

[Scope of utility model registration request] Two bolt mounting holes 6 and 7 are provided, a safety pin insertion hole 8 is provided between them, and a safety pin 9 holding device 1 is provided adjacent to the hole 8.
2 are connected to each other on one side, and a chain hook 1 is attached to one end of the tread plate mounts 1, 1.
7 and a tightening device 18 having a chain 19 at the other end to form a utility pole mounting body 20, and two protruding bolts 3 corresponding to the bolt mounting holes 6, 7 at the front end of the surface of the footboard 2. 3
Two safety pin insertion holes 4 and 5 are provided between and a support leg 21 is provided on the back side to form a step stool 22, and the above-mentioned utility pole mounting body 2
In a utility pole workbench in which a footboard 22 is removably attached to the footplate 1, a safety pin 9 provided on the footboard mount 1 is provided.
A safety piece 15 is provided by extending the safety pin holding fitting 10 of the holding device 12 to one side.
A safety pin holding device for a utility pole workbench is characterized by a structure in which one of the two bolt mounting holes 6 and 7 provided in the holder is partially covered.