JP2552876Y2 - Brush cutter guard - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention is intended to prevent mowing machines, especially wire-type mowing machines, from flying toward workers and sticking to work clothes, thereby contaminating clothes and preventing the cutting grass from scattering. This is a device related to guards.

[0002]

2. Description of the Related Art A brush cutter has a rotating member at a tip end of a handle and a disk-type brush cutter such as a tip saw, or a wire-type cutter made of one to three wires such as nylon. There is a brush attached to the rotating member so as to protrude from the outer peripheral surface of the rotating member, and this brush cutter has a circular locus of rotation around the blade attached to the rotating member at the tip of the handle for worker safety. In many cases, a plate-like cover made of metal or hard synthetic resin is attached as a safety cover to a handle so as to cover approximately half of the cover.

[0003]

A conventional safety cover for a bush cutter has a main purpose of preventing a worker's body from touching a bush cutter. There is no function to prevent flying, and in use, grass and pebbles jump over the guard and fly toward the worker. In particular, a disk-type brush cutter is dangerous because it hits stones in the soil and the blade is damaged, and the lost pieces are scattered and harm the surrounding people including workers. Even if such dangerous phenomena can be dealt with, it is not possible to prevent a light object such as cut grass from flying to the worker.

[0004] The safety cover provided on the wire-type brush cutter can prevent the small pieces of the wire blade that have been accidentally cut during use from flying, but the degree of scattering of the cut grass is reduced by the disc-shaped brush cutter. A lot of cut grass flutters toward the worker, and the green juice of the grass coming out of the cut of the cut grass soils the clothes and face of the worker, and scatters around and cuts off after the cut-off operation. It was a cumbersome task of gathering together.

[0005] In view of the above-mentioned drawbacks of the brush cutter, the present invention prevents the cutter and the like from flying and scattering to an operator, and also prevents the cutter from being caught when the grass is collected in front of the guard or a tree is caught by a guard. and an object thereof is also to provide a guard can proceed Do rather mowing and this to stagnate brush cutter in place that prevent progression.

[0006]

Means for Solving the Problems The present invention of the bush cutter guard has a seat 4 which is supported by the support body 3, a handle fixing section 5 which engages the support 3 to lifting handle 1 of the supporting bush cutter , Handle fixing part 5
To, along the curtain surface of the sheet 4, sheet 4 to the operator's side靡
Those having a sheet支受body 6 so as to prevent Kukoto
In addition, the handle 1 of the brush cutter passes through the curtain surface of the sheet 4.
It has a through hole 2 and supports the support 3 of the sheet 4
The handle fixing portion 5 is configured such that the insertion hole of the handle 1 is
One that supports the support 3 facing the same axis
It is.

[0007]

When the mower is mowing with the mower equipped with the guard of the present invention, the mowing is carried out by hanging the sheet 4 between the mower blade and the operator in a hanging manner so that the support 3 forms a larger blocking surface. The sheet support 6 for receiving the cut grass is provided along with the sheet 4, so that the impact force of the collision of the grass coming into the sheet 4 can be reduced by the sheet support 6. , And the sheet 4 is not largely swung toward the operator. That is, the flying grass is sheet 4
To prevent blowing to the operator side.

In particular, a through hole 2 through which the handle 1 of the brush cutter passes is formed in the curtain surface of the sheet 4, and the handle fixing portion 5 faces the through hole 2 on the same axis and supports the sheet 4. since the body 3 are to be supported, because the curtain surface of the sheet 4 around the lifting handle 1 may be towards the ground banners shape, and the receiving range of the grass clippings is widened, is brushcutter it is possible to perform the mowing work easily and can be handled in a well-balanced the guard can be close to the ground.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a guard for a brush cutter according to the present invention. 2 and 3 show an embodiment of the present invention, and FIGS. 1 and 4 show a case where these are mounted on a wire brush cutter. For example, as shown in FIG. 1, a wire brusher protrudes three nylon wire blades from the outer peripheral surface of the rotating member at the tip of the handle 1 and rotates the rotating member at a high speed. It only reaps weeds near cliffs.

[0010] embodiment shown in FIG. 2, bored through holes 2 of the lifting handle 1 of the brush cutter, and support a curtain-like sheet 4支受by T-shaped support member 3a, a support 3a Jigara 1 and an inverted T-shaped sheet provided on the outer periphery of the handle fixing portion 5a along the curtain surface of the sheet 4 so as to prevent the sheet from fluttering toward the operator. And a support 6a.
The sheet 4 through which the handle 1 penetrates is made of a soft synthetic resin material such as vinyl, but may be rubber, cloth, nonwoven fabric, or a metal plate (for example, a stainless steel plate or an aluminum plate having a thickness of 0.1 mm). it can. As shown in FIG. 2, a cut line 7 is inserted into the through hole 2 from the upper left end of the sheet 4 and the upper end is folded back and fixed to form a T-shaped support.
The insertion part 8 of the body 3a is formed.

[0011] a support 3a and the sheet支受body 6a, the spring steel wire, spring steel strip, it is assumed that a spring member such as a piano wire, is disposed to face the outer peripheral surface of the handle fixing portion 5a. The support 3 and the sheet支受body 6 may not be provided at right angles on the outer peripheral surface of the handle fixing section 5, the sheet支受body 6,支受the support 3 when the guard is mounted on the lifting handle 1 The handle 4 may be provided in the handle fixing portion 5 in a state extremely close to the sheet 4.

As shown in FIG. 2, the handle fixing portion 5a is formed by dividing a tubular member into upper and lower halves, providing a support 3a in an upper half, a sheet support 6a in a lower half, and a handle fixing portion 5a. The fastening pieces 5 ₁ , 5 ₁ are laterally provided on both left and right outer sides of the 5 a to connect the fastening pieces 5 ₁ , 5 ₁ with screws 9, 9. body 3 and not limited to the embodiment as long as the sheet支受body 6 can engage supporting the Jigara 1. May be both strip the support 3 and the sheet支受body 6 may be a coil spring In addition, as long as they are composed of those short having elasticity. Guard of the present invention, the horizontal piece 15 ₁ of the support 3a is inserted into the insertion portion 8 of the seat 4, by inserting the lifting handle 1 to the handle fixed part 5a clamping piece 5 _1, 5 ₁
When the sheet 4 is connected with the screws 9, 9, the sheet 4 can be locked to the handle 1 in a free hanging manner as shown by a solid line in FIG. 1.

[0013] Next, as FIG. 3, the support 3 in FIG. 4, a seat支受body 6 without the spring member, illustrating another embodiment in which the mere strip or rod-shaped body. 3 shows, the bottom concave handle fixing section 5b mounting piece 5 ₂ and the sheet supporting receptacle 6b
Upper convex those pivotally mounted as shown and a vertical piece 18 _2, FIG. 4, the attachment piece 5a and the seat supporting the handle fixing portion 5c of
And a vertical piece 18 _third receptacle 6c is obtained by hinged 10.

[0014] The examples shown in Figure 3, the pivot shaft 11 to one end on the side of the mounting piece 5 ₂ as a torsion bar, wearing takes the other end to the vertical piece 18 _second side of the sheet支受body 6b The seat support 6b is fixed to the arm 13 so as to rotate around the pivot shaft 11 with elasticity in a certain range between the tip and the base of the handle 1. Embodiment shown in FIG. 4, the pivot shaft 12 and one end to the torsion bar on the side of the mounting piece 5 _3, vertical pieces 18 ₃ of the second end sheet支受body 6c
Is fixed to an arm 14 attached to the side of the handle 1, and is rotated around the pivot shaft 12 of the seat support 6c with elasticity in a certain range between the tip and the base of the handle 1. Things.

[0015] Incidentally, the torsion bar spring members of the support 3, the sheet支受body 6 and the pivot shaft 11 and 12, when advancing the mowing, when the obstructions such as trees confronting front collides with the guard, The sheet bearing member 6 which comes into contact with the curtain surface of the sheet 4 together with the sheet 4 can be appropriately elastically deformed toward the worker, and returns to the original state when the collision with the obstacle is released. It is preferable to select a material having a resilient force.

[0016] As shown in FIG. 1, the support 3 the handle fixing section 5
The direction of rotation of the rotary blade of the brush cutter on the curtain surface of the sheet 4 received by the above, that is, the side opposite to the side where the cut grass comes into contact with the sheet 4 and strikes the curtain surface of the sheet 4 (left side in FIG. 1). (2), it is possible to increase the effective cut-off area of the cut grass on the curtain surface of the sheet 4.

When the guard of the present invention is mounted on a brush cutter, for example, a wire brush cutter, as shown in FIG. 1, the sheet 4 becomes a hanging curtain having a large curtain surface. The green juice which adheres to the cut grass and contaminates the clothes by coming out of the cut end of the cut grass is received by the curtain of the sheet 4, and the further scattering of the cut grass to the worker side is blocked.

If the support member 3 and the seat support member 6 are spring members, they bend toward the worker side against obstacles such as standing trees that stand forward when mowing the grass. Around the mower, the mower can pass smoothly and the mowing can be safely performed. Further, if there is a tall raised object on the ground, the sheet support body 6 collides with the raised object and bends rearward and upward together with the guard 4 together with the seat 4 (dashed line in FIG. 1) to advance the brush cutter. Eliminates the bumps that obstruct the brush cutter to smooth the bushing operation. When the brush cutter passes through the obstruction, the sheet support 6 returns to its original state by the resilience, and the sheet 4 takes the form of a free hanging curtain and receives the flying grass (solid line in FIG. 1).

As shown in the embodiment of FIGS. 3 and 4, a description will be given of a case where the sheet supporting members 6b and 6c are made of a strip having no spring property. As shown in FIG. 3, the mounting piece 5 _second sheet支受body 6b and the handle fixing section 5b pivotally mounted, the pivot axis 11 to one end side of the mounting piece 5 _{and second} pivoted shaft 11 and the torsion bar,
When fixing the other end to an arm 13 attached to the vertical piece 18 _second side of the sheet supporting receptacle 6b, be rotated within a predetermined range to the operator side of the sheet支受body 6b around the pivot axis 11 it can. Further, as shown in FIG. 4, on the side of the mounting piece 5 ₃ sheet支受body 6c and the handle fixing section 5c, the arm 14 attached to the other end in the longitudinal pieces 18 ₃ side of the sheet支受body 6c When fixed, as shown by the chain line in FIG. 4, the seat support 6 c can be rotated within a certain range toward the operator around the pivot shaft 12. Then, due to the reaction of the torsion bar torsion, the seat support 6b returns to the original position about the pivot shaft 11 and the seat support 6c returns to the original position about the pivot shaft 12, respectively. It can be immediately returned to the original free dripping state. Therefore, also in these cases, similarly to the case where the seat support 6 is a spring member, it is possible to prevent the obstruction in front of the guard from hindering the advance of the brush cutter.

In the embodiment shown in FIG. 3 and FIG. 4, the vertical piece of the seat support and the handle fixing portion are pivotally connected by a pivot shaft. In addition, each of the support and the seat support is provided separately. In the vertical piece and the horizontal piece, the horizontal piece is divided on the left and right sides of the vertical piece end, and the horizontal piece is arranged, and these are provided with a pivot axis in parallel with the vertical piece. You may wear it. In this way, the same elastic effect as when the support and the seat support are formed as a spring member is obtained, and the support and the seat support are elastically moved toward the worker against an obstacle standing forward. And can be rotated.

The drilled through holes 2 that lifting handle 1 of the brush cutter to curtain surface of the sheet 4 passes through exit, the support 3 the handle fixing section 5 is支受the opposing sheet 4 in the same axis as the through hole 2 To support
Since the sheet 4 is received , the sheet 4 is received in a state in which the grass 4 is received in a wide range and the brush cutter is close to the ground, so that the center of gravity is lowered and the brush cutter can be handled in a well-balanced manner.

As described above, when the guard of the present invention is attached to the brush cutter, mowing can be smoothly and safely performed without difficulty. Note that the present invention is not limited to the embodiments and can be modified without departing from the gist of the present invention.

[0023]

According to the first aspect of the present invention, the brush cutter
It is assumed that the handle penetrates through the through hole made in the direction of the curtain surface of the sheet.
In addition, the sheet is hanging against the ground in a well-balanced manner
Because it is locked in a shape, it can catch grass in a wide range,
The machine can approach the ground, lower the center of gravity and balance the brush cutter
The mowing work is more stable and
It can be done without reason.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a guard for a brush cutter according to the present invention is mounted on a wire cutter.

FIG. 2 is a front view showing an embodiment of a guard for a brush cutter according to the present invention;

FIG. 3 is a front view showing another embodiment of the guard for the brush cutter according to the present invention;

FIG. 4 is a diagram of another embodiment of the present invention showing <br/> a state like mounted on the brush cutter.

[Explanation of symbols]

1 ... lifting handle, 2 ... through hole, 3, 3a, 3b, 3c ... support, 4 ... sheet, 5, 5a, 5b, 5c ... handle fixing section, _{5 2,} 5 3 _... mounting piece, 6, 6a, 6b, 6c ...
Seat support, 15 ₁ , 15 ₂ , 15 ₃ , 17 ₁ , 1
7 ₂ , 17 ₃ ... horizontal piece, 16 ₁ , 16 ₂ , 16 ₃ , 1
8 ₁ , 18 ₂ , 18 ₃ ... vertical pieces.

Claims (1)

(57) [Scope of request for utility model registration] And 1. A sheet 4 which is支受a support 3, the support member 3 supports, a handle fixing portion 5 to be engaged with the lifting handle 1 of the brush cutter,
The handle fixing section 5, set along a curtain surface of the sheet 4, a sheet支受body 6 so that the sheet 4 is to prevent the fluttering to create <br/> trader
In the girder, the curtain of the seat 4 has the handle 1 of the brush cutter.
Has a through-hole 2 through which the support member 3 of the sheet 4
The pattern fixing portion 5 for supporting the
The support 3 is supported facing the through hole 2 with the same axis.
A guard for a brush cutter characterized by being held.