JPS6031001Y2 - Chain assembly tools - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a special tool for assembling a chino.

For example, when replacing the main chain of a floor conveyor, the most time-consuming task is assembling the chain.

As shown in Figure 1, the conventional chino assembly process involves assembling a pair of left and right links 1 to two front and rear connecting pins 2.
One end of the connecting pin 2 is held down with a hammer, crowbar, etc., and the face of the link 1 on the opposite side is directly hammered in, but a method has been used in which a rod is applied and the hammer is hammered in.

Therefore, not only do workers need at least 2 Å, but they also have to worry about the link deforming due to hitting the surface of link 1, damaging the connecting pin by hitting it by mistake, and even damaging the connecting pin with their hands. Since the link 1 is hit on one side at a time, it does not go in smoothly and takes a lot of time.

The present invention provides an assembly-specific tool that eliminates the above-mentioned conventional problems.

The embodiment will be explained with reference to FIGS. 2 and 3.

The structure of the tool of the present invention is made up of a pair of plates 3as3b (waste material from the link 1 of a cheno can also be used) as shown in FIG.

One plate 3a has the following structure.

A hole 4 into which one end of the connecting pin 2 of the chain is fitted is provided at both ends of the plate 3a, and a contact protrusion 5 is provided on the inner surface of the plate 3a between the holes 4, and an L is provided on the upper surface of the center part of the plate 3a.
It has a structure in which a mold support member 6 is fixed, and the head of a bolt 7 is fixed to this support member 6 by welding or the like.

Next, the other plate 3b has protruding shafts 8, 9 protruding from the inner and outer surfaces of both ends thereof, and a hole 8a into which the other end of the connecting pin 2 is inserted is bored in the protruding shaft 8 on the inner surface.

Further, an L-shaped support member 10 corresponding to the support member 6 provided on the one plate 3a is fixed to the upper surface of the central portion of the plate 3b, and an insertion hole 11 for the bolt 7 is fixed to this support member 10.
has been established.

A method of assembling a chino using a tool that includes a pair of plates having the above structure will be explained with reference to FIG.

Insert the link 1 into the connecting pin 2 of the chino in advance, fit one end of the connecting pin 2 into the holes 4 at both ends of one plate 3a,
The support member 6 is engaged with the upper surface of the link 1 to support the plate 3a.

As a result, the tip of the contact projection 5 is brought into contact with the surface of one link 1.

Next, the other end of the connecting pin 2 is fitted into the hole 8a of the protruding shaft 8 on the inner surface of the other plate 3b, and the bolt 7 is inserted into the insertion hole 11 made in the support member 10 and the nut 12 is inserted.
Temporarily fasten with.

As a result, the end surface of the projection shaft 8 comes into contact with the surface of the other link 1, and the setting together with the one plate 3a is completed.

After that, when the protruding shafts 9 of the other plate 3b are alternately struck with a hammer, the abutting protrusions 5 of one plate 3a have the same function as a conventional presser with a hammer or crowbar, etc.
While pressing one link 1, the other link 1 is pushed by the end face of the protruding shaft 8.

This link 1 is gradually pushed by hitting the projection shaft 9 with a hammer, and by tightening the nut 12 each time, the link 1 is pushed uniformly and assembled without tilting at both ends.

The tool according to the invention has the following advantages in chain assembly.

First of all, assembly work can be done by one person.

Since the part that is struck with the hammer is the link surface around the connecting pin via the protruding shaft, the striking force acts effectively and there is no deformation of the link.

Also, since the nut is struck while tightening, there is no space and an effective pushing motion can be obtained.

Furthermore, even if the pin hole of the link is oval, centering can be easily performed using this tool, and assembly can be performed smoothly and correctly.

In addition, it is lightweight, easy to set up, and has practical effects such as good work safety.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a conventional chain assembly method, FIG. 2 is a perspective view of the tool of the present invention, and FIG. 3 is an explanatory diagram of a chain assembly method using the tool of the present invention. 1... Link, 2... Connecting pin, 3a
t 3b...Plate, 4...Hole,
5... Protrusion for contact, 6... Support member,
7... Bolt, butt... Protrusion shaft, 8a...
...Hole, 9...Protrusion shaft, 10...
Support member, 11... Insertion hole, 12...
Natsuto.

Claims (1)

[Scope of utility model registration request] It is made up of a combination of a pair of plates, one plate has a hole at both ends into which one end of the connecting pin of the chain is inserted, and the receiver has a contact protrusion on the inner surface between the holes. An L-shaped support member is fixed on the upper surface of the central part, and one end of the bolt is fixed.The other plate is provided with protruding shafts on the inner and outer surfaces of both ends, and the inner protruding shaft is fitted with a chino. A tool for assembling a chino, wherein the receiver into which the other end of the connecting pin is inserted has a hole, and a support member with a bolt insertion hole is provided at a position corresponding to the support member on the one plate side.