JPS5835442Y2 - Chienso - Google Patents

Description

[Detailed explanation of the invention] In a portable power chainsaw that is extremely compact and lightweight, the arrangement of each component greatly affects the function and handling of the machine, but the fuel tank in the main body of the chainsaw Regarding the arrangement of the lubricating oil tank, the location of its inlet is one of the important conditions, and it is common to provide it near the front upper surface of the main body of the aircraft.

A sensing lever for starting the chain braking device is installed in this part as well as the front handle, which provides sufficient work space during replenishment work.The present invention has developed a chainsaw that improves this point. This is what we intend to provide.

The present invention will be described in detail below based on embodiments shown in the figures.

As shown in FIG. 1, the chainsaw according to the embodiment of the present invention has a main body 1
2. It has handles on the front and rear, and fill ports for the fuel tank and lubricating oil tank on the front upper surface. z, and a sensing lever 3 for starting the chain braking device is disposed above the sensing lever 3, which is pivotally supported on one side of the main body 1 and can be tilted in the longitudinal direction of the machine.

A front handle 5 is provided approximately parallel to this.

The sensing lever 3 has a front end...
It is an important functional component that triggers chain braking when the head of the hand of a worker collides with it, and it also serves as a hand protector.

Such a member cannot be eliminated, and in order to ensure its function as a protective member, it is not desirable to be able to tilt it forward significantly, and the above-mentioned injection port is generally provided directly below this member. It is necessary to have a structure in which the sensing lever 3 is located above the injection port 2.2 so that it does not become an obstacle during the replenishment operation.

As shown in FIGS. 1 and 3, the sensing lever 3 has its shaft support 4 rotatably supported by a shaft 4' on one side of the main body 1, and is tiltable in the longitudinal direction of the machine body.

A shaft rod 6 is provided extending forward from the upper end of the lever 3 in an L-shape substantially along the front handle 5 and across the upper part of the main body 1 at an appropriate distance.

A fixed part body 7 is fitted on the base side of the shaft rod 6, and a floating part body 8 is provided on the transverse portion of the shaft rod 6, which serves as an impact receiving part, and is externally mounted on the shaft rod 6, respectively.

The floating body 8 is rotatable and slidable with respect to the shaft rod 6, and has a downwardly integrally formed support plate portion 8' with a spring 9 interposed in the side end C of the shaft rod 6. The fixed portion is biased toward the T side.

Therefore, a projecting wall 11 is provided on the contact surface of the fixed part body 7 with the floating part body 8.
．． 11 to form a fitting groove 10, and the side edge 8'' of the floating part body 8 on the fixed part body 7 side can be freely fitted and removed.

In the above configuration, if the floating body 8 is slid toward the side end 6' of the shaft rod 6 against the biasing force of the spring 9 during replenishment work, the side edge 8'' of the floating body 8 is disengaged from the fitting groove part 10, and the floating part body 8 becomes rotatable around the shaft rod 6, and the flat head receiving plate part can be moved as appropriate, so that the lower part of the transverse part is largely opened, providing a sufficient working space. It can be made.

This embodiment of the working space facilitates the handling of the fuel and lubricating oil tank filling ports, and greatly contributes to eliminating the conventional inconveniences in arranging the filling ports.

Incidentally, if the sensing lever can be made thicker (tiltable) toward the non-actuating side and implemented in conjunction with the present invention, the effect can be even more pronounced.

[Brief explanation of drawings]

Fig. 1 is a side view of a chainsaw according to an embodiment of the present invention, Fig. 2 is a front view of a sensing lever for starting the chain braking device, Fig. 3 is a side view of Fig. 2, and Fig. 4 is a side view of Fig. 2. It is a BB sectional view of. 1... Body, 3... Sensing lever, 5.
...Front handle, 6...Axle rod, 7...
...Fixed part body, 8...Floating part body, 8'...
...Flat head plate part, 8''...Side edge, 9...
... Spring, 10 ... Fitting groove part.

Claims (1)

[Scope of utility model registration request] The front part has a handle at the front and rear part of the main body 1, and a hand support plate is rotatably supported on one side of the main body 1 in front of the handle 5 and tilts IJ1m in the longitudinal direction of the machine. This is a portable power chainsaw equipped with a sensing lever 3 for starting a chain braking device, which has a shaft provided so as to cross above the main body 1 from the upper end of the lever 3, approximately along the front nozzle 5. A fixed part body 7 is fitted to the base side of the rod 6, a floating part body 8 is rotatably and slidably provided on the transverse part of the rod 6, and the floating part body 8 is attached to the fixed part body by a spring 9. 7 side,
The side edge of the floating part body 8 on the fixed part body 7 side is connected to the fixed part body 7.
A chainsaw characterized in that it can be freely fitted into and removed from a fitting groove part 10 provided in the chain saw.