JPH0116561Y2 - - Google Patents

Description

[Detailed explanation of the invention] Portable chainsaws used for felling trees are mainly used in mountain forests with uneven ground and many slopes, so they have a structure that prevents the machine from tipping over when placed on the ground. However, since the bottom area of the machine body is small, especially small and lightweight chain saws, they tend to tip over easily.

On the other hand, in order to prevent the danger of the saw chain sliding around the guide bar coming off or breaking, the saw chain may bounce back toward the worker and cause injury. Protruding columnar members (generally referred to as chain catchers) are commonly used.

This invention is achieved by fitting a cushioning material to the top of the lower side rod of the front handle at the lower front of the bottom of the chain saw body near the guide bar attachment part, and protruding laterally as a supporting leg member. The purpose is to ensure the stability of the aircraft, omit the chain catcher as a separate part, and make it possible to realize a strong chain catcher without worrying about damaging the saw chain.

Next, the present invention will be explained in detail based on the embodiment shown in the figures.

In the chain saw according to the embodiment of the present invention, a guide bar 3 is attached to one side of a main body 1 having a front handle 2 and a rear handle 8, and a saw chain 4 can be slid around the guide bar 3.

In general, the bottom surface of the chain saw body 1 is a long and narrow rectangle in the front and back, and the guide bar 3 and saw chain 4, which are quite heavy, are attached at a position away from the center line of the machine. Has a tendency to fall to the side.

Therefore, in this embodiment, the lower side rod part 9 of the front handle 2, which has a horizontal U shape, is placed along the front lower part of the bottom surface of the chain saw body 1 near the guide bar 3 attachment part 7, and the leading part 5 thereof is The supporting leg members are made to protrude beyond the vertical plane including the running path of the saw chain 4 to approximately the side ends of the main body 1. A buffer member 6 made of rubber or the like is fitted into the supporting leg member portion so that the saw chain will not be damaged when the cut chain is wrapped around it. Furthermore, if the round pipe material of the supporting leg member portion is crushed to form a flat plate, stability can be further enhanced.

As described above, the present invention has a very simple structure in which a cushioning material is fitted and protruded from the lower front part of the lower side rod of the front handle at the lower front of the bottom of the chain saw body. This not only ensures stability when placed in the vehicle, but also greatly contributes to cost reduction by eliminating the need for a chain catcher as a separate component.

In addition, since the supporting leg member is housed within the width of the main body,
It does not increase the external dimensions of the machine body, and is particularly suitable for use in small and lightweight chain saws.

[Brief explanation of the drawing]

FIG. 1 is a side view of a chain saw according to an embodiment of the present invention, and FIG. 2 is a front view thereof. 1...Chain saw body, 2...Front handle, 3
... Guide bar, 5 ... Top part, 6 ... Buffer member, 7 ... Mounting part, 9 ... Lower side rod part.

Claims (1)

[Scope of utility model registration request] A buffer member 6 is fitted onto the lower front bottom surface of the chain saw main body 1 near the guide bar 3 attachment part 7, and onto the front end 5 of the lower horizontal rod part 9 of the front handle 2 which is in a horizontal U shape. A safety device for a chain saw, which protrudes beyond a vertical plane including a running path to approximately the side end of the main body 1, and has the leading end 5 disposed as a supporting leg member which also serves as a chain catcher.