JPH0538580Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to the improvement of brush cutters used for removing undergrowth, weeds, etc. The present invention relates to a brush cutter that can easily perform tree removal work.

[Prior art and issues to be solved]

BACKGROUND ART Conventionally, brush cutters have been widely used because they can be easily carried by hand to remove undergrowth, weeds, and the like.

By the way, this type of brush cutter usually has a structure in which a working means such as a cutter blade or filament is rotatably disposed at the tip of a drive shaft vip and is connected to an engine (drive mechanism) via the drive shaft. However, on sloping slopes such as ridges and banks, mowing work was performed while swinging the working means up and down along the slope, resulting in severe worker fatigue and a tendency for work efficiency to drop significantly. .

Therefore, a relatively large handle is attached to the main body of the device including the drive mechanism, and the rotational force of this drive mechanism is transmitted along the longitudinal direction to a reciprocating working means consisting of a plurality of cutter blades having a large number of blades.
A brush cutter has been proposed in which the angle of the handle can be adjusted so that the brush cutter can be used not only on flat ground but also on sloped surfaces such as ridges and banks.

However, due to the relationship between the main body and the handle, this type of brush cutter may not be able to work on terrain such as steeply sloping earthen surfaces, or may be forced to work in an unreasonable position, as with conventional brush cutters. There were further issues that needed to be resolved.

[Means for solving problems]

Therefore, in this invention, an operating handle is attached to the main body of the device including the drive mechanism, and the rotational force of this drive mechanism is transmitted along the longitudinal direction to a reciprocating working means consisting of a plurality of cutter blades having a large number of blade parts. The operation handle of the brush cutter is pivotally mounted to the main body of the device so as to be rotatable 360 degrees, and a rotation fixture is disposed at this pivot joint,
On the other hand, by arranging a sled member at the bottom of the equipment main body to perform work while sliding on the work surface, and further installing a protective part extending into the sled member to cover the back side of the equipment main body in a curved shape, it is possible to work on a flat surface. This allows work to be carried out easily no matter how sloping the slope is.

In this case, if the operating handle is attached to the support member installed upright on the device body via a horizontal angle adjustment mechanism with a tightening lever, the angle of the operating handle can be adjusted as appropriate in the horizontal direction. Work can be made even easier.

[Effect]

In the brush cutter according to this invention, the angle of the operating handle with respect to the main body of the device is set appropriately according to the topography of the surface to be cut, and the work is performed while sliding the surface to be cut using a sled member installed at the bottom. be.

〔Example〕

Next, preferred embodiments of the brush cutter according to the present invention will be described in detail with reference to the accompanying drawings.

In FIGS. 1 and 2, a brush cutter 10 according to the present invention forms an equipment main body 16 by integrally attaching a gear mechanism 14 that converts the rotational force of the engine 12 into reciprocating motion to an engine 12 as a drive mechanism. This gear mechanism 14 includes a reciprocating blade 22 consisting of two cutter blades 18, 18 having a large number of blade parts.
Connect and place.

Further, the reciprocating working blade 22 is held by the main body 16 of the device via a holding member 24, and a stay member 26 extending obliquely upward of the working blade 22 is attached to a predetermined location of the holding member 24. Each end of a U-shaped operating handle 28 is rotatably attached to both ends of the stay member 26, and the operating handle 28 is
A tightening lever 30 for fixing the rotation angle of the operating handle 28 is attached to one pivot portion of the operating handle 28. In this case, the separation dimension W between both ends of the stay member 26 is set to be slightly larger than the maximum width dimension A of the device main body 16, and the operation handle 28
The length H is set longer than the length B from the pivot point to the tip of the reciprocating blade 22, and when the tightening lever 30 is in the open state, the operating handle 28 rotates 360 degrees around the pivot point. Configure it so that it can be done.

An auxiliary handle 34 having a similar tightening lever 32 is rotatably attached to the U-shaped end of the operating handle 28.
A throttle lever 36 is provided at a predetermined location.

Further, a sled member 38 with curved edges on both sides is attached to a predetermined location of the stay member 24, and this sled member 38 protects the bottom of the equipment body 16 and a part of the reciprocating blade 22. At the same time, the back side of the device main body 16 is also protected by the protective portion 40 extending in a curved manner.

When using the brush cutter according to the present invention configured in this way, for example, when working on flat land, first, the operation handle 28 is moved against the grass cutting surface G (=extending direction of the reciprocating work blade 22). is set at an appropriate obtuse angle and fixed with the tightening lever 30, and the auxiliary handle 34 is similarly set at an obtuse angle with respect to the operation handle 28, and the sled member 38 disposed at the bottom of the main body 16 is moved sideways to perform brush cutting work. (See Figure 3a); and when working on a gently sloped cutting surface, slightly adjust the angle of the operating handle 28 in Figure 3a and set the auxiliary handle 34 to an obtuse angle of 180 degrees or more. (See Figure 3b).

On the other hand, when working on a steeply sloped surface such as a right angle, move the operating handle 28 against the mowing surface G.
Set the tightening lever 3 to an appropriate obtuse angle of 180 degrees or more.
0, and the auxiliary handle 34 is the operating handle 2.
The mowing work may be performed by moving the sled member 36, which is set at an acute angle with respect to 8 and disposed at the bottom of the main body 16 of the device, as if using it as a fulcrum (see Fig. 3c).
In addition, in the case of mowing work on the mowing surface G that has a shelf shape, the obtuse angle of the operating handle 28 in FIG.
(see Figure 3d).

Furthermore, regardless of the slope angle of the slope, the reciprocating blade 2
When working with the mower 2 facing upward, adjust the operating handle 28 according to the angle of the mowing surface G.
For example, a right angle (Fig. 3e) or an acute angle (Fig. 3f)
) and fixed with the tightening lever 30, and the auxiliary handle 34 is set at an acute angle with respect to the operating handle 28 to perform the work. The device main body 16 including the drive mechanism is suitably protected by the section 40.
This avoids the inconvenience that a part of the mower may get caught on the mowing surface G and cause trouble to the work.

In addition, after the grass cutting work is finished, operate the operation handle 2.
8 so as to overlap with the reciprocating blade 22 and fixed with the tightening lever 30, it can be compacted and convenient for transportation and storage.
(See figure g).

Further, FIGS. 4 and 5 show that a support member 42 is erected on a part of the equipment body 16 in which the engine 12 and the gear mechanism 14 are integrated, and the horizontal angle is fixed on the support member 42. According to the present invention, a square-shaped operation handle 28 is attached via a horizontal angle adjustment mechanism 44 having a tightening lever, and the square-shaped operation handle 28 itself is rotatably pivoted to a support member 42. Another example of a brush cutter is
In this case, since the operating handle 28 can be set at an appropriate angle with respect to the mowing direction (progressing direction) of the reciprocating work blade 22, the work can be performed in a more comfortable posture (see FIG. 6).

[Effect of idea]

As mentioned above, according to the brush cutter of the present invention, the operation handle can be rotated 360 degrees relative to the main body of the device, and the back side of the drive mechanism is also curved at the bottom of the main body of the device. The protective section has been extended to cover the surface, so you can not only work on flat ground but also on slopes no matter how sloping it is, in a comfortable posture that suits the situation. It has various advantages such as being able to perform the work more efficiently since part of the main body of the equipment does not get caught on the mowing surface even when the work is carried out using a mower, and its practical effects are extremely large.

Although the preferred embodiment of the brush cutter according to the present invention has been described above, the present invention is not limited to this embodiment, and various modifications can be made without departing from the spirit of the present invention. Of course.

[Brief explanation of the drawing]

Figure 1 is a side view of a preferred embodiment of the brush cutter according to the present invention, Figure 2 is a plan view of the brush cutter shown in Figure 1, and Figures 3a to 3g are the brush cutters shown in Figure 1. FIG. 4 is a side view of another embodiment of the brush cutter according to the present invention, FIG. 5 is a plan view of the brush cutter shown in FIG. 4, and FIG. 6 is a plan view of the brush cutter shown in FIG. 5
The figure is an explanatory diagram showing an example of use. 10...brush cutter, 12...engine, 14...
Gear mechanism, 16... Equipment body, 18... Cutter blade, 22... Reciprocating work blade, 24... Holding member, 2
6... Stay member, 28... Operation handle, 30
...Tightening lever, 32...Tightening lever, 34...
Auxiliary handle, 36...Throttle lever, 38
... Sled member, 40 ... Protective part, 42 ... Support member, 44 ... Horizontal angle adjustment mechanism.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A brush cutter comprising an operating handle attached to the device body including a drive mechanism and transmitting the rotational force of the drive mechanism to a reciprocating working means,
The operating handle is pivotally attached to the equipment body so as to be rotatable 360 degrees, and a rotation fixture is disposed on this pivot part, while the operating handle is attached to the bottom of the equipment body so that the work can be carried out while sliding on the work surface. A brush cutter, characterized in that a sled member is disposed, and a protection portion extending from the sled member to cover a back side portion of the device main body. (2) The brush cutter according to claim 1, which is a registered utility model, wherein an operating handle is attached to a support member erected on the main body of the device via a horizontal angle adjustment mechanism having a tightening lever.