JPH0244928U - - Google Patents

Description

[Brief explanation of drawings]

Figures 1 to 3 relate to the first embodiment of this invention, Figure 1 is a general schematic diagram of a safety cover device for a brush cutter, and Figures 2 and 3 are longitudinal sections showing the internal structure of the guide member. A top view and a cross-sectional view, and FIGS. 4 to 7 relate to another embodiment of the safety cover device for a brush cutter, and FIG. 4 is an overall view of the safety cover device for a brush cutter.
Figure 5 is a view of the mounting bracket viewed from the axial direction of the operating rod, Figures 6 and 7 are front and bottom views of the locking bracket, and Figures 8 and 9 are the safety cover device for the brush cutter. Regarding still another embodiment of
FIG. 0 is a schematic perspective view of the entire brush cutter. DESCRIPTION OF SYMBOLS 10...Brush cutter, 12...Operation stick, 18...Rotary cutting blade, 26...Safety cover, 30, 72...Safety cover operation lever (operation member, swinging lever for operation), 32...Guide member , 50...Locking recess, 5
4... Locking convex portion, 56... Compression coil spring (first
(biasing member), 57... stopper, 58... wire (motion transmitting member), 68... compression coil spring (
78, 80, 96... Rod (motion transmitting member), 88... Fulcrum, 92... Intermediate lever.

Claims (1)

[Claims for Utility Model Registration] (1) A rotary cutting blade 18 at the front end of the operating rod 12;
Safety cover 2 that covers the operator side of this rotary cutting blade 18
6, the safety cover 26 is displaceable with respect to the rotary cutting blade 18, and the operating members 30, 72 are operated by the operator.
A safety cover device for a brush cutter, characterized in that a safety cover device is provided near a worker during work. (2) A guide member 32 is provided for guiding the safety cover 26 in the front-rear direction of the brush cutter safety cover device, and the operating members 30 and 72 are comprised of swingable operating swing levers 30 and 72, These operating swing levers 30, 72 are connected to motion transmitting members 58, 78.
, 80 , 96 to the safety cover 26 . (3) a locking recess 50 provided in the guide member 32; a locking convex 54 disposed in the guide hole 52 of the safety cover 26 so as to be able to fit into the locking recess 50; a first urging member 56 that urges the locking projection 54 in a direction in which the locking projection 54 fits into the locking recess 50; and the motion transmission members 58, 78, 80, 96. A wire 58 is connected to the locking convex portion 54 at its tip end.
and the second biasing member 68 biasing the safety cover 26 forward and the displacement of the locking convex portion 54 toward the operating swing levers 30 and 72 by the wire 58. 3. A brush cutter according to claim 2, further comprising a stopper 57 for restricting the movement of the safety cover 26 toward the operating swing levers 30, 72 by the wire 58. Safety cover device. (4) The safety cover 26 is rotatably coupled to the operating rod 12 around a support point 88, the operating members 30, 72 are operating swing levers 30, 72, and the motion transmitting members 58, 78 , 80 and 96 include an intermediate lever 92 that converts the axial movement of the operating rod 12 from the operating swing levers 30 and 72 into rotational movement of the safety cover 26. The safety cover device for a brush cutter according to item 1.