JPH04136018U - brush cutter - Google Patents

Abstract

(57) [Summary] (with modifications) [Structure] A pick-up device for scooping up grass, etc. toward the cutting blades 2 and 3 in a brush cutter having a pair of cutting blades 2 and 3 that move relatively back and forth in the longitudinal direction. 17 is attached to the side surface of the tip of the holding plate 26 of the cutting blade. [Effect] The tip of the cutting blade does not directly hit a hard fixed structure, etc., so the cutting blade can be protected, and even grass that overhangs the edge of the road can be cut cleanly and safely. I can do it.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention is a so-called hair clipper that has a pair of cutting blades that move relatively back and forth in the longitudinal direction. Concerning a type of brush cutter.

0002

[Conventional technology]

Conventionally, a hair clipper has a pair of cutting blades that reciprocate relative to each other in the longitudinal direction, that is, a clipper type cutting blade. Brush cutters tend to hit the longitudinal tip of the cutting blade against hard fixed structures, etc. This may damage the mowing blade, and it may also cause damage to the mowing blade. However, there were drawbacks such as difficulty in harvesting the grass and safely.

0003

[Problem that the idea aims to solve]

Therefore, the present invention eliminates the drawbacks of the conventional technology as mentioned above, and is simple and convenient. The purpose is to provide a brush cutter with a unique shape.

0004

[Means to solve the problem]

The brush cutter according to the present invention has a pair of cutting blades that relatively reciprocate in the longitudinal direction. A pick-up device that scoops up the materials toward the cutting blade is installed on the tip side of the holding plate of the cutting blade. It is characterized by a structure attached to the surface.

[0005]

[Effect]

Therefore, the pick-up device only protects the tip of the cutting blade while cutting grass, etc. Instead, the grass, etc. is scooped up and guided towards the cutting blade, so you can cut it while lying on the ground. Even things that are difficult to harvest can be trimmed cleanly.

[0006]

【Example】

Next, the present invention will be explained with reference to the drawings. Figure 1 is a side view of the cutting blade device of a brush cutter to which the present invention can be applied, and Figure 2 is a side view of the mowing blade device of a brush cutter to which the present invention can be applied. FIG. 3 is a schematic side view of the main parts of the first embodiment of the invention, and FIG. 3 shows the main parts of the second embodiment of the invention. FIG. 4 is a schematic side view, FIG. 4 is a view taken along the arrows of FIG. 3 IV-IV, and FIG. It is a main part schematic side view of an example. First, as shown in Figure 1, the operation of the brush cutter (not shown) A pair of elongated cutting blades 2 and 3 are provided overlapping each other, and these cutting blades 2 and 3 are in opposite phases to each other in the longitudinal direction. It is attached so that it can move reciprocally to constitute a reciprocating mower blade, and it is Through a power conversion mechanism 4 that converts the rotational driving force of an internal combustion engine etc. into reciprocating driving force, Driven. A pickup device, which will be described later, is attached to the side surface 5 of the tip end of the holding plate 26. be done. Note that there is no problem even if the holding plate 26 is used as a fixed blade and one movable blade is omitted. .

[0007] In the first embodiment shown in FIG. 2, the pickup device 6 It is attached to overlap the end side surface 5. The pickup device 6 is made of a steel plate or the like. It is made from a rigid plate material, and has a long hole 7 in the front and back direction formed in the middle part. It is attached by a headed pin 8 that penetrates through and is implanted on the side surface 5 of the tip end of the retaining plate 26. I'm being kicked. Therefore, the pickup device 6 rotates up and down in the direction of arrow A. At the same time, it can be slid slightly back and forth in the direction of arrow B. The picker The cutting device 6 includes a front portion 10 that projects forward from the sawtooth portions 9 of the cutting blades 2 and 3. , a rear portion projecting rearward from the back portion 11 of the cutting blades 2 and 3 on the opposite side to the sawtooth portion 9; The front portion 10 has a flat lower edge 13 and a front portion 12. an upper edge 15 that is obliquely inclined to define, together with said lower edge 13, a pointed tip 14; nothing. The rear portion 12 is slightly spaced rearward from the back portion 11 of the cutting blades 2 and 3. A bent portion 16 is formed at the portion bent in a direction surrounding the back portion 11. The bent portion 16 has an upper end side or a lower end side that engages with the back portion 11 of the cutting blades 2 and 3. The rotation range of the pickup device 6 in the direction of the arrow A is limited by this. Furthermore, before The pickup device 6 has its tip 14 facing outward or away from the tip of the holding plate 26. The weight of the front section 10 is transferred to the rear section 12 so that it remains rotated toward the ground. or has a weight balance heavier than the weight of the pickup device 6 and the holding plate 26 The above-mentioned state is maintained by a biasing spring (not shown) acting between the two.

[0008] During the cutting operation, the pickup device 6 serves to protect the tips of the cutting blades 2 and 3. At the same time, scoop grass, etc. toward the cutting blades 2 and 3 along the upper edge 15 of the front part 10. It works to raise the grass, making it possible to cut the grass cleanly and safely. from the edge of the road Even when cutting protruding grass, etc., point the cutting blades 2 and 3 in the vertical direction and pick up the tips. Since the mowing device 6 can be mowed while applying it to the edge of the road, there is no uncut grass or the like. Also, since the pickup device 6 can move up and down and back and forth during work, the cutting blade 2 and The tip of 3 can be guided smoothly along the ground, allowing safe and comfortable work. Wear.

[0009] Next, in the second embodiment shown in FIGS. 3 and 4, the rear of the pickup device 17 is The portion 18 has a rear end portion 20 bent further rearward from the bent portion 19 in a stepped manner. A wheel 21 is pivotally supported on the rear end portion 20 substantially in line with the cutting blades 2 and 3. Applicable The wheels 21 are grounded on the ground G during mowing work to facilitate the mowing work and at the same time The tip 22 of the pickup device 17 is brought into natural contact with the ground, and the grass is scooped up. Allows for perfect and clean mowing. Therefore, in this embodiment, the pick-up The weight balance before and after the pick-up device 17 should be considered, and the uneven pressure of the pick-up device 17 should be considered. It is not necessary to provide a spring.

0010 Next, the third embodiment shown in FIG. At the tip 22 of the position 17, it is further rotatable up and down in the direction of arrow C around the pin 23. This is an example in which the auxiliary pickup device 24 is attached to obtain a higher pickup effect. It also enables stable work.

[0011]

[Effect of the idea]

As explained above, in this invention, the tip of the cutting blade is directly attached to a hard fixed structure, etc. Since there is no need to attach the mower, it is possible to protect the cutting blade, and it also protects the cutting blade from sticking out on the edge of the road, for example. Even grass etc. that have been left behind can be cut cleanly and safely.

[Brief explanation of drawings]

FIG. 1 is a side view of a cutting blade device portion of a brush cutter to which the present invention can be applied.

FIG. 2 is a schematic side view of the main parts of the first embodiment of the present invention.

FIG. 3 is a schematic side view of main parts of a second embodiment of the present invention.

[Figure 4] Figure 3 IV-IV arrow view.

FIG. 5 is a schematic side view of main parts of a third embodiment of the present invention.

[Explanation of symbols]

2,3 Cutting blade 5 Side surface of the tip of the retaining plate 6,17,27 Pick up device 26 Holding plate

Claims (1)

[Scope of utility model registration request] 1. A brush cutter having a pair of cutting blades (2, 3) that relatively reciprocate in the longitudinal direction, the pickup device (6, 3) scooping grass, etc. toward the cutting blades (2, 3). 1
7, 27) attached to a side surface (5) of the tip end of the holding plate (26) of the cutting blade.