JP3341233B2 - Work assist device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand-held type working machine, and more particularly to a work assisting device which is effective for use in performing work using a hedge trimmer.

[0002]

2. Description of the Related Art Even with a hand-held type working machine, in a model such as a brush cutter that holds the working machine downward, various types of handles, such as a shoulder-type belt and a handle attached to an operating rod, have been proposed in the past. Although measures to reduce fatigue have been adopted,
When a worker holds a working machine upwards like a hedge trimmer and works, he or she has used a hanging band or no work at all.

[0003]

For example, when working with a hedge trimmer, unlike a bush cutter, the body is supported by the worker's own arm, which causes severe fatigue.
Continuous working time tends to be short, and the risk of accidents during working increases due to fatigue. The present invention has been made in consideration of this point, and has as its object to reduce the fatigue of an operator and improve the safety of work.

[0004]

Here, the present invention is to solve the above-mentioned problems by the following operation assisting device. That is, in the work assisting device according to the first aspect, a base member (1) held on the body of the worker, one end of which is attached to the base member (1), and the other end of the worker's elbow. Or an arm (4) having an arm rest (5) on which the arm is placed.

[0005] In the work assisting device according to the second aspect,
2. The device according to claim 1, wherein the base member (1) is held on a torso belt (16) wound around the torso of an operator.

In the work assisting device according to the third aspect,
2. The device according to claim 1, wherein the arm (4) is held so that its mounting angle with respect to the base member (1) can be changed.

[0007] In the work assisting device according to claim 4,
2. The device according to claim 1, further comprising a telescopic part (13) whose length is adjustable in the middle of said arm (4).

[0008]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. First, in FIG.
Reference numeral 1 denotes a base member. The base member 1 made of a hard material such as metal has a mounting member 2 for describing its structure and function in detail.
Are connected via a fastener 3 such as a set screw, and an arm table 5 is fixedly mounted at the end of an arm 4 protruding from the mounting member 2. The arm table 5 is formed in a trapezoid suitable for placing an elbow or an arm of a worker.

FIG. 2 shows a mounting structure of the mounting member 2 to the base member 1, FIG. 3 shows a front view of the base member 1 itself,
4 showing the surface of the mounting member 2 facing the base member 1, FIG. 3 shows a screw hole 6, an annular protruding edge 7 surrounding the screw hole 6, and a diameter from the protruding edge 7. Protrusions 8, 9 extending in the radial direction are formed at two locations that are opposite to each other.

On the other hand, in the mounting member 2 shown in FIG.
A center hole 10 communicating with the screw hole 6;
And a plurality of diametrically opposed radial grooves that are continuous with the circumferential groove 11 and that are to be fitted with the circumferential edges 11 and into which the protruding pieces 8 and 9 are to be fitted. 12 are formed.

Therefore, the base member 1 and the mounting member 2 are formed such that the protruding edge 7 is fitted into the peripheral groove 11 in a state where an arbitrary set of grooves 12 are fitted into the protruding pieces 8 and 9. By screwing the fastener (set screw) 3 into the screw hole 6 and tightening, the direction of the arm 4 protruding from the mounting member 2 can be appropriately adjusted.

The length of the arm 4 can be changed according to the physical size of the worker by forming a turnbuckle-type telescopic portion 13 (see FIG. 5) in the middle of the arm 4 itself. It is.

Next, returning to FIG. 1, the manner in which the base member 1 is held on the trunk of an operator will be described. That is, the torso belt 16 of the shoulder belt 15 of an arbitrary shape attached to the worker 14 is inserted into the eye hole 17 projecting from the surface of the base member 1,
18 (see FIG. 2), the base member 1 is held by the body of the worker 14.

FIG. 6 shows an embodiment in which the work assisting device of the present invention is used. When the worker 14 holds the hedge trimmer 19 and performs work above the chest of the worker 14, the arm supporting the hedge trimmer 19 is used. By placing the elbow on the arm rest 5, the weight burden of the hedge trimmer 19 can be reduced. In order to suppress the wobbling of the arm 4, it is desirable to connect a proper portion of the arm 4 and a part of the shoulder strap 15 with a suspension band 20 as shown in FIG.

[0015]

By using the work assisting device having the above-described structure according to the present invention, the fatigue of the worker can be reduced, and the work can be continuously performed for a long time.
This has the effect of preventing the occurrence of an accident caused by fatigue.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of an embodiment of the present invention.

FIG. 2 is a side view of a portion of the device of the present invention.

FIG. 3 is a front view of one component of the portion shown in FIG. 2;

FIG. 4 is a front view of another component of the portion shown in FIG. 2;

FIG. 5 is a sectional view of a telescopic portion formed on an arm.

FIG. 6 is an explanatory diagram showing a use state of the device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base member 4 Arm 5 Arm stand 13 Telescopic part 16 Body belt

Claims (4)

(57) [Claims] A base member (1) held on a trunk of an operator
And an arm (4) having one end attached to the base member (1) and the other end provided with an arm rest (5) on which an elbow or an arm of an operator is placed. 2. The work assisting device according to claim 1, wherein the base member (1) is held on a trunk belt (16) wound around the trunk of the worker. 3. The work assisting device according to claim 1, wherein the arm (4) is held so that a mounting angle with respect to the base member (1) can be changed. 4. The work assisting device according to claim 1, wherein a stretchable portion (13) whose length is adjustable is formed in the middle of the arm (4).