JPS5927704Y2 - Safety device for hanging fittings on brush cutters - Google Patents

Description

[Detailed description of the invention] This invention provides a prime mover via a clutch housing at the base of a long auxiliary pipe, a cutter at the tip via a gear housing, and a drive shaft inserted into the auxiliary pipe from the prime mover. This invention relates to a safety device for a hanging fitting in a brush cutter in which the cutter is rotated through the hanging fitting, and the clutch housing section or the prime mover section is hung from the shoulder by a band via the hanging fitting. It is something.

As mentioned above, during work in which the brush cutter is suspended from the shoulder using a band through the hanging bracket, if for some reason (e.g. engine fire, falling on a slope, etc.) the brush cutter's hanging bracket should be There is an urgent need for him to leave the band.

This type of detachment device is a device for attaching a brush cutter to the body, in which a waist cushion is attached to the waist using a waist belt, and the wear belt is attached to the shoulder using a shoulder belt via a mounting bracket. so that the upper part of the lumbar cushion is suspended from the mounting bracket,
A locking rod that is slidable in the vertical direction with an appropriate clearance between the outside surface of the metal fitting is provided, and the tip of the locking rod is made to be able to freely pass through the bent portion provided at the lower end of the mounting metal fitting. , a brush cutter equipment characterized in that a hanging fitting of the brush cutter is removably attached to the gap, and a hook fitting provided on the belt side of the hanging fitting provided on the body side of the brush cutter. In the engaging device, the hanging metal fitting has an annular engaging element, and the hook metal fitting has a tongue piece that is fitted into the engaging element and projects diagonally downward, and a locking engagement piece provided on the tongue piece. A locking piece is provided that is removably inserted into the locking hole, and a resilient member is provided that elastically holds the locking piece in a state where it is inserted into the locking hole, and the locking hole is inserted into the locking hole. The locking piece is provided with a puller for pulling out the locking piece against the elastic holding force of the elastic holding member, so that the engaging element slides off from the tongue piece when the locking piece is pulled out. A safety hanging bracket for brush cutters has been proposed (Japanese Utility Model Publication No. 52-58239 and Japanese Utility Model Application Publication No. 53-936), which is characterized by the fact that Also, when hooking the hanging fitting connected to the brush cutter (the hanging fitting shown by code 7 in the former case, the engaging element shown by code 4 in the latter case) on the connecting fitting, there are It is necessary to hold each operator with one hand (the locking rod indicated by 8' in the former case, and the handle indicated by 15 in the latter case) with one hand, which means that setting can be done easily. It's something that doesn't exist.

This invention was created with attention to the points mentioned above, and its purpose is to operate the brush cutter in an emergency by holding the brush cutter with one hand and pushing the operating part of the lever with the other hand. The connected hanging fittings can be dropped quickly, that is, by tilting the hanging plate on which the hanging fittings are hooked forward,
To provide a safety device for a hanging fitting in a brush cutter that can be quickly dropped by operating a lever with one hand and can prevent personal injury in an emergency.

Another object of the present invention is to eliminate the need for using a coil spring or the like that is likely to cause elastic fatigue. In other words, the hanging bracket can be disengaged by pressing the operating part of the lever, and the vertically movable plate is engaged by tension. The purpose of the present invention is to provide a safety device for a hanging fitting for a brush cutter that can be held securely and easily released with a small amount of force, is easy to operate, and has a long service life. To provide a safety device for a hanging metal fitting in a monthly payment machine, which allows the fitting to be easily set.

Next, an embodiment of the present invention that achieves the above object will be described in detail with reference to the accompanying drawings.

a indicates the main body of the connecting fitting, which includes a main body plate 1, an upper window 2 and a lower window 3 formed on the left and right sides of the main body plate 1, a hanging plate 4 formed on the front of the lower part in the center of the main body plate 1, and the main body. A locking plate 5 having locking protrusions 5a formed on the left and right sides at the upper center of the plate 1, an arm plate 6 having a shaft 6a formed on the left and right sides of the main body plate 1 at the upper part of the hanging plate 4, It consists of bent guide pieces 7 formed on the left and right sides of the upper part of the arm plate 6.

The suspension plate 4 is formed to be slightly tilted forward and downward, and a bent guide piece 6b is also formed at the lower part of the arm plate 6.

b shows a vertically movable plate consisting of a front plate 8 and a rear plate 9, and on the front surface of the front plate 8 there are projecting pieces 8a, a, which are vertically spaced apart at a desired distance.
b is provided.

The rear plate 9 of this vertically movable plate is fitted between the main body plate 1 and the bending guide piece 7 so as to be vertically movable, and the front plate 8 is inserted into the arm plate 6.
The lower end portion 8c of the front plate 8 is fitted onto the back surface of the bending guide piece 6b so as to be movable up and down.

C shows a lever having an operating part 10 on the upper part and a rotating plate part 12 with a projecting plate 11 and a stopper 12a on the lower part, and the rotating plate part 12 is rotatably fitted to the shaft 6a of the arm plate 6. Moreover, the projecting plate 11 is inserted between the projecting pieces 8a and ab.

Further, the stopper 12a is provided so as to be able to come into contact with the lower part of the arm plate 6.

In addition, d indicates a rubber buffer plate fitted into the left and right upper windows 2 of the main body plate 1 with the lower part folded in half, and e indicates a band folded in half. The buckle fitting f is inserted from the front to the rear of the groove 13 bored in the
It is inserted through the upper window 2 from the rear through the upper window 2, and from there through the lower window 3 and into the buckle fitting f again.

Reference numeral 14 denotes a ring-shaped hanging fitting, and the upper part of the hanging fitting 14 is hooked onto the hanging plate 4, and the lower part thereof is connected to a brush cutter via a hook or the like.

In the above configuration, by pushing the operating part 10 of the lever C in the direction of the arrow (see FIG. 3), the locking of the upper part of the lever C by the locking protrusion 5a is released, and the rotating plate part 12 is axis 6
It rotates in the direction of the arrow with a as a fulcrum, as shown by the imaginary line.

As the rotating plate portion 120 rotates, the projecting plate 11 and 43 rotate in the direction of the arrow in FIG. 43, and the stopper 12a comes into contact with the lower part of the arm plate 6, thereby blocking its rotation.

Also, due to this rotation, the vertically movable plate is pushed up via the protrusion 8a and rises as shown in the imaginary line, and the lower end 8c of the vertically movable plate is separated from the top of the hanging plate 4, and the hanging fitting 14 is lowered forward. It will fall off naturally from the tilted hanging board 4.

In addition, with the operating part 10 of the lever C tilted forward (this state is held by the weight of the lever C), hook the hanging fitting 14 onto the hanging plate 4, and then move the operating part 10 in the opposite direction. By pulling the lever c, the locking protrusion 5a'
-'(-1! is held.

Since the present invention fits as described above, in case of an emergency, you can hold the brush cutter with one hand and press the operating part 10 of the lever C with the other hand to hold the hanging bracket 14 of the brush cutter. The suspension plate 4 can fall more quickly than the hanging plate 4 which is tilted forward and downward.

Therefore, the occurrence of personal injury in an emergency can be prevented, and the lock can be released by simply pressing the operating part 10 of the lever C, without using a coil spring that is likely to cause elastic fatigue, and the lock can be released by pulling the lever C. By the operation of the vertically movable plate that is locked, the suspension fitting 14 is held securely and can be easily released with a small amount of force, and is easy to operate and has a long service life. It also has the advantage of being able to easily set the metal fittings.

[Brief explanation of drawings]

The drawings show an embodiment of the safety device for a hanging fitting in a brush cutter according to the present invention, in which Fig. 1 is a front view, Fig. 2 is a side view, and Fig. 3 is a cross section taken along the line ■-■ in Fig. 1. It is a diagram. a...Connection fitting body, b...Vertical moving plate, C...Lever, 4...Hanging plate, 8c...
...Lower end, 14... Hanging fittings.

Claims (1)

[Scope of utility model registration request] A hanging plate for hanging the hanging bracket is formed by tilting forward and downward on the lower front surface of the connecting bracket body to which a band can be attached, and locking plates are provided on both sides of the upper part of the connecting bracket body, and arm plates are provided on both sides of the central part. A locking protrusion is provided on the inner surface of each of the locking plates to make it possible to lock and release the upper part of the lever attached to the shaft mounted between the arm plates. A pair of protrusions into which the lower end of the lever is inserted is provided on the front surface of the vertically movable plate guided by a guide piece formed in the vertically movable plate, and when the lever is operated, the lower end of the vertically movable plate approaches and separates from the hanging plate. A safety device for a hanging fitting in a brush cutter, which is characterized by: