JP2003180163A - Handle structure for portable pruning machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a handle structure of a portable pruning machine capable of reducing fatigue of a hand of an operator and stably, accurately and quickly performing pruning operation with the one hand. <P>SOLUTION: This handle structure for the portable pruning machine is provided with a rear handle 2 for holding the pruning machine body 1 at the rear of the pruning machine body 1. In the handle structure, hand application parts 6, 61 and 62 protruding in the nearly horizontal direction from the pruning machine body 1 are provided under the rear handle 2. The hand application part 62 is mountable and demountable from the rear handle 2. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handle structure of a portable pruning machine for pruning a tree branch or the like.

[0002]

2. Description of the Related Art Conventionally, in a portable pruning machine equipped with a drive unit composed of an electric motor or a prime mover engine, a rear handle is provided at a rear portion of the pruning machine body so that an operator can surely hold the pruning machine body with both hands. A front handle is provided in front of the rear handle.

In a portable pruning machine having such a structure, when pruning a tree branch or the like in the vicinity of an operator, the grips can be reliably held by both hands, so that the pruning work of a garden tree or the like is stabilized. It can be done accurately, accurately and quickly. However, when pruning a tree branch or the like in a high place or a low place, which is a little away from the worker, the worker holds only the rear handle with one hand, extends the arm to the full extent, and performs the pruning work. . Therefore, the operator receives the entire weight of the portable pruning machine with only his palm and fingers, and the hand is easily tired.In addition, the holding of the portable pruning machine is not stable, and the pruning work is stable in the vertical and horizontal directions. There was a problem that it could not be done accurately, accurately and quickly.

Therefore, in order to solve the above-mentioned problem, Japanese Patent Laid-Open No. 11-275961 discloses that a rear handle, which protrudes to both sides of a clipper body, which is one of portable pruning machines, is detachably attached to the rear handle. The technology provided is disclosed. Further, Japanese Utility Model Laid-Open No. 53-133292 discloses a technique in which an elbow support for supporting an elbow is provided behind a rear handle of a chain saw.

However, in the former case, as with the above-mentioned conventional portable pruning machine, both hands must hold the rear handle, so that the pruning work in which the clipper body is tilted vertically and horizontally is Since both hands and both arms have to be tilted together, the operability is poor, and the attached and detached handles must be attached and detached with screws, which is inconvenient to handle. In the latter, although the chain saw is held and operated with one hand, in the pruning work in which the chain saw is tilted upward or left and right, the worker's elbow separates from the elbow rest, and like the aforementioned conventional portable pruner, Since only the palm and fingers will receive the total weight of the chain saw,
There is a problem that the hands are easily tired, the holding of the chain saw is not stable, the chain saw swings upward or left and right, and the pruning operation cannot be performed stably, accurately and quickly.

[0006]

DISCLOSURE OF THE INVENTION The present invention is intended to solve the problems of the above-mentioned conventional methods, and reduces the fatigue of the hand of an operator, and also enables stable and accurate pruning work with one hand. The aim is to provide a handle structure for a portable pruning machine that can be done quickly.

[0007]

The present invention provides a handle structure of a portable pruning machine in which a rear handle 2 for holding the pruning machine body 1 is provided at the rear part of the pruning machine body.
With respect to the hand parts 6, 61, 62 that project in a substantially horizontal direction
Is provided below the rear handle 2, and the abutment portion 62 is attachable to and removable from the rear handle.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The handle structure of a hedge trimmer, which is one of the portable pruning machines according to the embodiments of the present invention, will be described below.
A description will be given based on FIGS. 1 to 6.

[0009]

1 is a plan view showing a handle structure of a hedge trimmer according to a first embodiment of the present invention. FIG. 2 is a partial front view of FIG. 1. FIG. 3 is a plan view showing the handle structure of the hedge trimmer according to the second embodiment of this invention. Figure 4
FIG. 4 is a partial front view of FIG. 3. FIG. 5: is a top view which shows the handle structure of the hedge trimmer of the 3rd Embodiment of this invention. FIG. 6 is a partial front view of FIG.

First, a handle structure of a hedge trimmer according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. Reference numeral 1 is a hedge trimmer main body which is a pruning machine main body having a drive unit composed of an electric motor or a prime mover engine (not shown), and 5 is composed of a movable blade and a fixed blade or two movable blades. Direction (left and right in the figure), a pruning part, 2 is a rear handle provided on the rear part of the hedge trimmer body 1, 3 is located on the front side of the rear handle 2, and the pruning part is from both sides of the rear lower part of the hedge trimmer body 1. The front grips 4 provided obliquely upward on the side are provided at the rear end (left end in the figure) of the pruning unit 5, and the tree branches and leaves pruned by the pruning unit 5 face the worker. It is a protective cover made of transparent synthetic resin that is provided to prevent scattering. Further, below the rear portion of the rear handle 2, a hand contact portion 6 is integrally formed so as to project rearward (toward the operator) of the rear handle 2 in a substantially horizontal direction with respect to the hedge trimmer body 1.

In the above configuration, the hedge trimmer main body 1
By grasping the rear handle 2 with one hand 7 (one-dot chain line in FIGS. 1 and 2) and applying the little finger side side 7a of the grasped hand 7 to the wrist side, the height slightly away from the operator can be obtained. When pruning a tree branch or the like at a low place or a low place, the entire weight of the hedge trimmer body 1 is applied not only to the palm or fingers of the hand 7 that holds the rear handle 2, but to the hand rest portion 6. It is also applied to the side surface 7a on the little finger side of the raised hand to distribute the weight and reduce hand fatigue. Particularly, in the pruning work in which the hedge trimmer body 1 is tilted vertically and horizontally, the side surface 7 on the little finger side of the hand is used.
Since the wrist side of a hits the contact portion 6, the wobble of the hedge trimmer body 1 is reduced. Therefore, the pruning operation can be performed stably, accurately, and quickly.

Next, the handle structure of the hedge trimmer according to the second embodiment of the present invention will be described with reference to FIGS. The same members as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the second embodiment, a hand contact portion 61 formed in the lower portion of the rear handle 2 is formed so as to project downward in FIG. 3 in a direction substantially horizontal to the hedge trimmer body 1. With this configuration, the rear grip 2 of the hedge trimmer main body 1 can be gripped by the right hand, and a part of the side surface 7a of the gripping hand 61 on the little finger side of the grip can be hit, so that the first embodiment Produces the same effect as. Further, the hand rest 61 is formed on the assumption that the rear grip 2 is gripped by the right hand, but may be formed by projecting upward in FIG. 3 for the left hand.

Next, the handle structure of the hedge trimmer according to the third embodiment of the present invention will be described with reference to FIGS. The same members as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the third embodiment, the hand rest 62 formed on the lower portion of the rear handle 2 is surrounded by the hand of the rear trimmer 2 and extends substantially horizontally with respect to the main body 1 of the hedge trimmer. It is formed by protruding. Further, the hand contact portion 62 is formed in the groove 2a formed around the rear grip 2.
It is configured to be attachable to and detachable from. With such a configuration, the rear grip 2 of the hedge trimmer main body 1 can be held by the right hand or the left hand, and substantially the entire side surface 7a on the little finger side of the held hand can be applied to the hand contacting portion 62. Therefore, the hand fatigue can be reduced more than in the first embodiment, and the pruning operation can be performed stably, accurately and quickly. Furthermore, since the hand contact portion 62 is configured to be attached to and detached from the rear handle 2, it can be removed when not needed, such as pruning work with both hands or storage, and the handling is convenient.

In the above-described three embodiments, the hand rests 6, 61, 62 formed on the lower portion of the rear grip 2 are formed so as to surround substantially the half circumference of the portion of the rear grip 2 to be gripped by the hand 7. Although it is made to project or partially projected, it may be formed to project at the front circumference of the portion to be gripped by the hand 7. Although the hedge trimmer has been described as one of the portable pruning machines, the present invention can be implemented as long as it can be grasped by one hand and used for pruning tree branches or leaves and cutting grass.

[0017]

As described above, in the handle structure of the portable pruning machine of the present invention, the rear handle 2 is provided with the hand-contact portions 6, 61, 62 projecting substantially horizontally to the pruning machine body 1.
Since it is provided below the handpiece and the hand rest 62 can be attached to and detached from the rear handle, fatigue of the hand of the operator is reduced, and pruning work with one hand can be performed stably, accurately and quickly. A handle structure for a pruning machine can be provided. Further, the pruning work with both hands and the storage can be removed when unnecessary, and the handling becomes convenient.

[Brief description of drawings]

FIG. 1 is a plan view showing a handle structure of a hedge trimmer according to a first embodiment of this invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a plan view showing a handle structure of a hedge trimmer according to a second embodiment of this invention.

FIG. 4 is a front view of FIG.

FIG. 5 is a plan view showing a handle structure of a hedge trimmer according to a third embodiment of this invention.

FIG. 6 is a front view of FIG.

[Explanation of symbols]

1 Hedge trimmer body 2 rear handle 3 front handle 4 protective cover 5 Pruning part 6,61,62 Care part

Claims (2)

[Claims] 1. A handle structure of a portable pruning machine in which a rear handle for holding the pruning machine body is provided at a rear part of the pruning machine body, wherein a hand-applying portion protruding substantially horizontally to the pruning machine body is provided. A handle structure for a portable pruning machine, which is provided below the rear handle. 2. A handle structure for a portable pruning machine, wherein the hand rest portion according to claim 1 can be attached to and detached from a rear handle.