JP2006006145A - Hedge trimmer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hedge trimmer improved in user-friendliness through expanding the range of usage mode where the hedge trimmer can be operated with an auxiliary handle. <P>SOLUTION: The hedge trimmer has the following structure: the auxiliary handle 12 is formed of a pair of right and left half handles 13, 13 which are rotationally connected to each other at their upper end parts via a screw sleeve 22; a pair of right and left connecting parts 14 to which the lower end parts of the half handles 13, 13 are detachably connected, are respectively provided at the front and back positions of a main body housing 3, so that the housing mode of the auxiliary handle 12 can be changed through selecting the connecting parts 14 with which the lower end parts of the half handles 13, 13 are connected to each other. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a trimming machine such as a hedge clipper capable of trimming a hedge, pruning a tree, or the like with a blade protruding in front of a main body incorporating a drive mechanism.

  As a trimming machine, the thing of patent document 1 is known. This is because a straight blade part consisting of a fixed blade and a movable blade with blades formed on both side edges is provided in front of the main body with a built-in crank mechanism driven by a motor. Along with the movement, the branches and leaves can be sheared with the fixed blade. In this trimming machine, a main handle (main handle) is provided in the front-rear direction at the rear of the main body, while an auxiliary handle (with a lower end connected to the right and left of the main handle in front of the main body). Auxiliary handles) are provided so as to be rotatable so that the angle with respect to the blade portion can be adjusted.

Japanese Patent Laid-Open No. 62-115212

  When using such a trimming machine, the main handle is supported by one hand holding the main handle, and the other hand holding the auxiliary handle is used to change the front / rear / left / right orientation and angle of the main handle. The position of is an important part that affects operability. However, since the auxiliary handle has a fixed connection position and can only be adjusted in angle, there are cases where it is difficult to use the auxiliary handle even when the auxiliary handle is provided, for example, when a mower is extended to a distant place.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a trimming machine that can be used with an auxiliary handle in a wider range of usage and can be further improved in usability.

In order to achieve the above object, the invention according to claim 1 is characterized in that the auxiliary handle is formed of a pair of left and right half handles that are rotatably coupled to each other at the upper end portions, and the lower end portion of the half handle is the main body. It is possible to change the mounting mode of the auxiliary handle by selecting a connecting portion for connecting the lower end portion by providing a plurality of connecting portions at the lower end portion of the half handle in the front-rear direction while removably connecting to the main body. It is a feature.
In addition to the object of the first aspect, the second aspect of the invention can connect the lower end portion of the half handle to the connecting portion at an arbitrary angle with respect to the main body in order to increase variations in the mounting manner of the auxiliary handle. It is what.

According to the first aspect of the present invention, the variation in the mounting manner of the auxiliary handle is increased, and it is possible to select the mounting manner that is most easy to use according to the work content. Therefore, the operability of the trimming machine by the auxiliary handle is improved and the usability is improved.
According to the second aspect of the present invention, in addition to the effect of the first aspect, the variation of the attachment manner of the auxiliary handle can be increased by changing the connection angle even in the same connection portion.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a hedge clipper which is an embodiment of the trimming machine of the present invention, FIG. 2 is a side view thereof, and the hedge clipper 1 is located below a motor housing 2 in which a motor (not shown) is built downward. The main body housing 3 which is a main body having a built-in crank mechanism that converts the rotation of the motor into a linear motion is integrally connected, and the blade section 4 that operates by the crank mechanism is located in front of the main body housing 3 (right side in FIGS. 1 and 2). Protruding. This blade portion 4 has a pair of upper and lower band plate-shaped blade fixing plates 5 and 5, and a band plate formed between the fixed plates 5 and 5 and the blades 8, 8,. The movable blades 6 and 7 are moved back and forth in opposite directions by a crank mechanism.
A main handle 9 provided with a trigger switch 10 is formed in the front-rear direction between the rear surface side of the motor housing 2 and the upper surface of the rear end of the main body housing 3. Reference numeral 11 denotes a protective cover that projects obliquely forward on the upper surface of the front end of the main body housing 3.

An auxiliary handle 12 is attached to the central portion of the main body housing 3. The auxiliary handle 12 is composed of a pair of left and right half handles 13 and 13 each having a hollow pipe shape whose lower end is bent into a short U-shape. .. Can be connected to any of the four connecting portions 14 formed at positions (connected to the connecting portion 14 on the front side in FIGS. 1 and 2).
This connecting portion 14 is provided with a cam surface 16 in which radial cam teeth project evenly in the circumferential direction on the inner bottom surface of a short screw cylinder 15 having a male screw formed on the outer periphery. 13 is a shaft that can be loosely inserted into the screw cylinder 15 of the connecting portion 14 at the lower end portion of the connecting portion 14, and has a cam surface 18 on the distal end surface that is provided with radial cam teeth that protrude evenly in the circumferential direction, like the connecting portion 14. A portion 17 is formed. A connecting sleeve 19, which has a female screw portion formed on the inner periphery and can be screwed into the screw cylinder 15, is externally mounted on the shaft portion 17 in a state in which the connecting sleeve 19 is prevented from coming off by a ring 20.

On the other hand, a threaded portion 21 is provided at the upper end of each half handle 13 so that the threaded portions 21 and 21 are respectively screwed into both ends of a threaded sleeve 22 having a female threaded portion on the inner periphery. Thus, the half handles 13 and 13 can be connected to each other via the screw sleeve 22.
Accordingly, the half handles 13 and 13 are configured such that the left and right shaft portions 17 are respectively inserted into the screw cylinders 15 of the connecting portions 14 and adjusted to arbitrary angles with which the cam surfaces 16 and 18 are engaged with each other, and then the connecting sleeve 19 is attached to the screw cylinder 15. If they are screwed together, the cam surfaces 16 and 18 are pressed in a meshed state to be restricted in rotation and fixed at the angle.

  In the hedge clipper 1 configured as described above, since a pair of left and right connecting portions 14 are provided on the front and rear of the main body housing 3, it is possible to assist by selecting the connecting portion 14 that connects the lower ends of the half handles 13 and 13. The mounting position of the handle 12 can be changed. For example, as shown in FIGS. 3 and 4, the left and right half handles 13, 13 are alternately extended in the front-rear direction around the screw sleeve 22, and the lower end of the left half handle 13 is connected to the left rear connecting portion 14. If the lower end portion of each half handle 13 is connected to the connecting portion 14 on the right front side, the auxiliary handle 12 is mounted in a plane S shape. Note that the cam surfaces 16 and 18 of the shaft portion 17 and the connecting portion 14 of each half handle 13 have a crest and a trough that face each other even when the auxiliary handle 12 is formed in a plane S shape. Are set to mesh.

Therefore, for example, if the main handle 9 is grasped with the right hand and the rear side of the auxiliary handle 12 is grasped with the left hand, the hedge clipper 1 can be pushed out long in a stable state, and trimming at a relatively distant place is also possible. Easy to do. On the contrary, the lower end portion of the left half handle 13 is connected to the left front connecting portion 14 and the lower end portion of the right half handle 13 is connected to the right rear connecting portion 14. It may be a plane S shape.
Although not shown, the auxiliary handle 12 can be provided at the rear of the main body housing 3 by connecting the lower ends of the left and right half handles 13, 13 to the rear connecting portions 14, 14, respectively. In this case, the auxiliary handle 12 can be connected to the main body housing 3 so as to be greatly tilted rearward.

Thus, according to the hedge clipper 1 of the said form, while forming the auxiliary handle 12 from a pair of left and right half handles 13 and 13 connected to each other at their upper ends, the half handles 13 and 13 While the lower end portion is detachably connected to the main body housing 3, a plurality of connecting portions 14 at the lower end portion of the half handle 13 in the main body housing 3 are provided in the front-rear direction, and the auxiliary portion is selected by selecting the connecting portion 14 that connects the lower end portions. By making the mounting mode of the handle 12 changeable, variations in the mounting mode of the auxiliary handle 12 are increased, and the mounting mode that is most easy to use can be selected according to the work content. Therefore, the operability of the hedge clipper 1 by the auxiliary handle 12 is improved and the usability is improved.
In addition, since the lower end portions of the half handles 13 and 13 can be connected to the connecting portion 14 at an arbitrary angle with respect to the main body housing 3, variations in the mounting manner of the auxiliary handle 12 by changing the connecting angle even in the same connecting portion 14. Can be more.

The upper ends of the half handles are detachably connected with a screw sleeve. However, this connection structure is not limited to the above-described configuration, and one is connected with a large diameter and the other with a small diameter. You can also. Further, it may be connected so as to be rotatable without being detachable.
Further, the connection structure between the main body housing and the auxiliary handle is not limited to the above-described form, and the cam teeth are increased / decreased, the structures of the screw cylinder and the shaft portion are reversed to each other, or the angle setting by the engagement of the cam surfaces is replaced. Thus, it is possible to change the design as appropriate, such as adopting angle setting by spline coupling.

On the other hand, the positions of the connecting portions are not limited to two in the front and rear, and three or more may be provided, or the number of connecting portions may be changed between the left and right sides of the main body. Further, it is not always necessary to arrange them coaxially in the left-right direction, and some or all of the connecting portions can be arranged so as to be displaced forward and backward. Furthermore, the front and rear connecting portions are not limited to be provided at the same height with respect to the main body, but can be provided with the height shifted in the vertical direction, or can be provided in a plurality of overlapping positions in the vertical direction at the same front and back position.
In addition, the present invention is not limited to hedge clippers but can be applied to other trimming machines such as lawn clippers and hedge trimmers.

It is a plane explanatory view of a hedge clipper. It is side view explanatory drawing of a hedge clipper. It is plane explanatory drawing of the hedge clipper which changed the mounting position of the auxiliary handle. It is side surface explanatory drawing of the hedge clipper which changed the mounting position of the auxiliary handle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Hedge clipper, 2 ... Motor housing, 3 Main body housing, 4 ... Blade part, 9 ... Main handle, 12 ... Auxiliary handle, 13 ... Half handle, 14 ... Connection part, 15 ... Screw cylinder, 16, 18 ... Cam Surface, 17 ... shaft, 19 ... connecting sleeve, 22 ... screw sleeve.

Claims (2)

A trimming machine equipped with an auxiliary handle in which a blade portion protrudes in front of a main body incorporating a drive mechanism, and an auxiliary handle that wraps around the upper portion of the main body and has lower ends connected to the left and right side surfaces, respectively.
The auxiliary handle is formed of a pair of left and right half handles that are rotatably connected to each other at the upper end portions, and the lower end portion of the half handle is detachably connected to the main body, while the half in the main body A trimming machine characterized in that a plurality of connecting portions at the lower end portion of the handle are provided in the front-rear direction, and the mounting manner of the auxiliary handle can be changed by selecting the connecting portion that connects the lower end portions. The trimming machine according to claim 1, wherein the lower end portion of the half handle can be connected to the connecting portion at an arbitrary angle with respect to the main body.

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