JPH0646257Y2 - Mower lifting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] This invention relates to a suspension device for a brush cutter, and more specifically,
The present invention relates to a lifting device having an improved attachment of a shoulder strap for hanging a brush cutter.

[Conventional technology]

The mowing machine is supported by the operator with both hands during the mowing work, and the end of the band hung on the shoulder is locked to the suspension of the operating main rod so that part of the weight of the mowing machine is held by the shoulder. It is common to support the burden.

That is, as shown in FIGS. 7 and 8, by hooking the hook 4 provided on the support plate 5 to the support ring 2 fitted to the operating main rod 1, the support plate 7 One end of the spring 3 is hooked on the spring 3, and the other end of the spring 3 is supported by a stopper 6 of the shoulder strap 5.

[Problems to be solved by the device]

In the above-mentioned brush cutter, it is indispensable to attach the support ring 2 to the operating main rod, and the flange of the support ring 2 is attached.
Since the 2A portion is protruding, the flange 2A may be caught on the worker's work clothes during the work, which may interfere with the work.

Therefore, an object of the present invention is to provide a suspension device in which a special projection is prevented from protruding from the operating main rod 1 and a shoulder strap can be used as it is without improvement. .

[Means for Solving the Problems]

In order to achieve the above-mentioned object, in a brush cutter configured with a cutting blade unit at one end of the operating main rod and a power unit such as an engine at the other end, a shoulder strap mounting position of the operating main rod is provided. A hanger cylinder formed of an elastic material is fitted in the hanger cylinder, and a pair of fitting rings connected by a suspension arm are housed in the hanger cylinder, and the operating main rod penetrates the fitting ring. The shoulder strap is configured to be locked to the suspension arm protruding from the hanger cylinder.

[Action]

In the suspension device of the present invention, the suspension arm without catching is projected from the hanger cylinder, and the hook of the shoulder strap is locked to this, so there is no obstacle such as being caught on the clothes of the worker.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 6 of the accompanying drawings. Symbols in these figures
10 shows the operation main rod, has a cutting blade unit 11 at one end,
The other end is equipped with a power source such as an engine 12, which is similar to a conventional brush cutter, and a handle is provided in the middle between the two.
A fitting 14 for mounting 13 is provided.
This handle is to be gripped by both hands of an operator, and a grip 13A is attached to the end of the V-shaped handle. Between the handle 13 and the engine 12, a lifting device 20 which will be described in more detail is installed.

The lifting device 20 is provided with a hanger cylinder 21 formed of an elastic material, and the hanger cylinder 21 has a space having a hole diameter for fitting the operating main rod 10 between both ends of the hanger cylinder 21 to loosen a bolt described later. It can be moved with
The outer shape is a barrel shape having a slightly bulged central portion, and a pair of fitting rings 22 and 23 are housed inside the hanger cylinder 21, and the inner diameters of the fitting rings 22 and 23 are the same as those in the above operation. Corresponding to the outer diameter of the main rod, the two fitting rings are connected by an inverted U-shaped lifting arm 24, and a gap is formed between the two fitting rings 22 and 23. The fastening ring 25 can be located in this gap. This fastening ring 25 is provided with the operating main rod 10 via a collar 28,
Tighten from the surrounding area, and the flange 25
A is formed, and is fixed to the operation main rod 10 by tightening the bolt 27 through the bolt hole 25B.

The hanger cylinder 21 is attached to the lifting arm 24
Slits 21A and 21A that allow you to look through
A slit is formed along the axial direction in the middle of the tongue piece 21B independent from each other. At the center of the hanger cylinder 21, the flange portion 25 of the fastening ring 25 is
A chamber 26 for accommodating A is formed, and an operation hole 26A for fastening the fastening bolt 27 is formed on the side surface of the chamber 26 so that the wrench R can be inserted.

Reference numeral 29 in the drawing denotes a wire support hole for supporting a wire extending from the accelerator lever to the throttle of the engine.

Next, the fitting rings 22 and 23 and the fastening ring 25 are accommodated in the hanger cylinder 21. At this time, the tongue piece 21B of the hanger cylinder 21 is flipped up against the elasticity and the space between the slits 21A. The space is expanded, the three rings are accommodated from this space, and the operating rod 10 is inserted into the hanger cylinder 21.

In this state, the suspending arm 24 projects from the hanger cylinder 21, so that the hooks of the shoulder straps are locked to the suspending arm 24, so that the operator can suspend and support the arm 24.

[Effect of device]

As is clear from the above description, according to the suspension device for a brush cutter of the present invention, a hanger cylinder formed of an elastic material is attached to the operating main rod, and the fitting ring and the fastening ring are housed therein. Since only the hanging hanger that connects the fitting ring is seen through the hanger cylinder, the lifting device does not get caught on the operator, and there is no effect that it does not get in the way when cutting grass. is there.

[Brief description of drawings]

FIG. 1 is a perspective view showing a suspension device for a brush cutter of the present invention,
2 is an exploded perspective view of the lifting device, FIG. 3 is a partial perspective view of the same assembled state, FIG. 4 is an exploded perspective view of a fitting ring and a fastening ring, and FIG. 5 is a lifting device. FIG. 6 is a vertical sectional view, FIG. 6 is an exploded explanatory view during assembly, FIG. 7 is a perspective view showing a conventional lifting device of a brush cutter in a working state, and FIG. 8 is a front view of the conventional lifting device. 20 …… Lifting device, 21 …… Hanger cylinder, 22, 23…
… Fitting ring, 24… Lifting arm, 25… Tightening ring, 26… Chamber, 28… Wire support hole

Claims (1)

[Scope of utility model registration request] 1. A brush cutter having a cutting blade unit at one end of an operating main rod and a power unit such as an engine at the other end, the elastic member being formed at a mounting position of a shoulder strap of the operating main rod. The hanger cylinder is fitted into the hanger cylinder, and a pair of fitting rings connected by suspension arms are housed in the hanger cylinder so that the operating main rod penetrates the fitting ring and protrudes from the hanger cylinder. Lifting device configured to lock the shoulder strap to the hanging arm.