JPH0430007Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a chain catcher for a chain saw.

Conventional Technology In general, a chain catcher for a chain saw is located below the chain guide plate attached to the chain saw body and protrudes from the front lower side of the chain saw body. This is provided to prevent an extremely dangerous situation in which the guide plate detaches from the guide plate and flies toward the machine body, that is, the operator, depending on the direction of rotation. That is, the saw chain comes into contact with a chain catcher that is protruded across the operating plane of the saw chain to provide braking and prevent the chain from flying dangerously. This type of chain catcher, which has been commonly used in the past, has a round column-shaped rigid metal body mounted on the side surface of the aircraft body. For this reason, when carrying the aircraft or working on it, the protruding objects tend to fall off due to contact with other objects, causing damage to the aircraft parts, and can also get in the way of work. was. Therefore, a system has been devised to solve this problem by using a tightly wound coiled elastic columnar body as a chain catcher, but further improvements are desired in terms of manufacturing and assembly of the chain catcher, workability of the chain saw, etc. was.

Problems to be Solved by the Invention In order to improve the conventional chain catcher, the present invention provides a chain catcher with a function that improves the workability of the chain saw, and a simple structure that improves the ease of manufacturing and assembling the chain catcher. The purpose of the present invention is to provide a chain catcher for a chain saw that has functions.

Means for Solving the Problems That is, the chain catcher for a chain saw according to the present invention includes a cylindrical part through which a screw 12 is passed for winding up a broken saw chain and fixing it to the chain saw main body, and a cylindrical part connected to the base of the cylindrical part and connected to the chain saw main body. It has a fixed positioning part that receives the side corner of the bottom of the lower end, and a skid part that has a curved bottom located below the fixed positioning part that allows the chain saw body to be supported on a tree or the like and slid during work. However, it is characterized by a structure in which the cylindrical portion, fixed positioning portion, and skid portion are integrally molded.

Function Therefore, according to the above structure of the present invention, the broken saw chain is wound up in the cylindrical part and the chain catcher is attached at the bottom of the lower end of the chain saw body.
It is easy to position and fix, and at the same time, it is stable after fixing, and problems such as the attachment part loosening and falling off are less likely to occur. In addition, the skid part having a curved bottom allows the chainsaw to be placed stably, and the skid part can be slid over wood etc. during cutting work, allowing the work to be carried out smoothly. Furthermore, since the cylindrical portion, fixed positioning portion, and skid portion are integrally molded, handling thereof is easy.

Embodiments A chain catcher for a chain saw according to the present invention will be described below according to embodiments shown in the drawings.

In the portable chain saw shown in FIGS. 1 and 2, a chain guide plate 2 is fixed via a pair of bolts 3 and 4 protruding from the right side of a chain saw body 1.
A saw chain 6 is driven by a driving sprocket 5 and slides along a guide groove of a chain guide plate 2. If the saw chain 6 breaks in the operating state where it is being driven, the saw chain may come off the guide plate, lose its restraint at all, and fly toward the main body, that is, the operator's side, at high speed. A chain catcher 7 is located below the chain guide plate 2 and is located under the front of the main body 2 in order to catch the broken chain and brake it before it reaches the front of the machine body. It is protruded from the side.

This chain catcher 7 is manufactured by integrally molding a somewhat soft olefin-based elastomer material, and has a cylindrical elastic tube part 8 and a fixed position that abuts the side end corner of the lower front end bottom of the chain saw body 1. 9 and a skid portion 10 having a curved bottom located below the fixed positioning portion 9. The hollow portion of the cylindrical portion 8 is also a space through which a screw 12 for fixing the chain catcher 7 to the chain saw body 1 is passed. Further, the lower end of the cylindrical portion 8 forms a cutout surface 11 along a slope that contacts one lower end of the skid portion 10. This cutout surface 11 is provided to increase the degree of freedom of movement of the chain saw when operating the chain saw using the skid part 10 as a fulcrum, and is designed to prevent interference with work when rotating the chain saw in the left and right direction. It is.

Effects of the Invention With the above-described configuration of the present invention, the cylindrical part that winds up the broken saw chain, the fixed positioning part that receives the lower end bottom of the chain saw body, and the chain saw body can be supported on a tree or the like during work and slide. Since the skid part with the curved bottom is integrally molded,
The chain catcher for a chain saw according to the present invention not only prevents the broken chain from coming into contact with the operator, but also improves the workability of the chain saw by using the skid part, and also makes it easier to attach the chain catcher to the chain saw body. It is stable due to the fixed positioning part having the lower end bottom, there is no fear of it falling off during use, and it is easy to handle during assembly.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of a chain saw, and FIG. 2 is a front view of FIG. 1. 1... Chain saw body, 2... Chain guide plate,
7... Chain catcher, 8... Cylinder part, 9... Fixed positioning part, 10... Skid part.

Claims (1)

[Scope of utility model registration request] In the chain catcher 7 which is located below the chain guide plate 2 attached to the chain saw body 1 and protrudes from the front lower side surface of the chain saw body, the chain catcher winds up the broken saw chain and fixes it to the chain saw body. screw 1
2, a fixed positioning part 9 that is connected to the base of the cylinder part and receives the side corner of the bottom bottom of the chain saw body, and a fixed positioning part 9 that supports the chain saw body on a tree or the like during work so that it slides. A chain catcher for a chain saw, characterized in that the skid part 10 has a curved bottom and is located below the fixed positioning part, and the cylinder part, the fixed positioning part, and the skid part are integrally molded.