JPH0411487Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a battery-powered mower with good operability.

[Background of the idea]

A gardening tool, such as a pruner, is a tool for pruning garden trees, hedges, etc. of various shapes. Since most pruning work is done outdoors, a battery-powered mower that does not require a power cord is extremely convenient. However, on the other hand, the built-in heavy battery impairs the overall balance of the product, resulting in problems such as hands becoming tired immediately after work or difficulty in cutting the finished surface uniformly. Figures 3 and 4
The above-mentioned problems will be explained using an example of a conventional battery-powered mower shown in the figure. An actuating section 11 consisting of a motor 2, a reciprocating converter 3 connected to the motor 2, and a blade 4 reciprocatingly moved by the converter 3, a handle section 8a that is a part of the outer frame 7, etc. A battery 9 is housed entirely inside the handle portion 8 of the battery-powered mower.

That is, in a configuration in which the heavy battery 9 is stored in the handle part 8, the center of gravity position G' is in front of the motor 2, and the center of gravity position G' is located in front of the motor 2.
As the distance l′ increases, the moment applied to the hand increases.
W′·l′ (where W′ is the weight of the main body) increases.

Pruning work involves moving the blade 4 of the trimmer vertically, horizontally, and diagonally, so if the moment W′ and l′ applied to your hands is large, you will quickly get tired, which will not only reduce work efficiency but also reduce the center of gravity. Since G' is on the side of the blade 4, when pruning horizontally, the blade 4 tends to tilt, making it impossible to cut with high precision.

[Purpose of invention]

The purpose of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to provide a battery-powered mower that is well-balanced and has good operability.

[Summary of the idea]

This invention focuses on the fact that by bringing the center of gravity of the main body closer to the grip, the moment applied to the hand is reduced and the operability of the mower is improved.
The arrangement of parts has been devised.

[Example of idea]

An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a side view showing the arrangement of parts of the mower of the present invention, and FIG. 2 is a top view of the mower of the present invention.

An operating unit 1 comprising a motor 2, a reciprocating converter 3 connected to the motor 2, and a blade 4 having a plurality of blade parts 4a that reciprocate and protrude from an outer frame 7.
1, and a handle portion 8 is provided on the opposite side of the outer frame 7 to the protruding direction of the blade 4, and a battery 5 for driving the motor 2 is provided at an end portion 8a of the handle portion 8. Further, a switch 6 for turning the motor 2 on and off is provided on the handle portion 8.

With the above configuration, the overall balance is such that the heavy battery 5 and the blade 4 are placed at both ends, so the center of gravity G can be set close to the switch 6 on the handle part 8. If the distance between the center of gravity G and the grip is l, and the weight of the main body is W, then the moment applied to the hand is W x l, which is smaller due to the smaller distance between the grip and the center of gravity compared to the conventional product mentioned above. Therefore, the operability of the mower can be improved.

[Effect of idea]

According to the present invention, components such as battery blades and motors are arranged in a well-balanced manner, resulting in a battery-powered mower that is easy to operate, and (1) does not cause fatigue even during long hours of work. (2) Work efficiency increases. (3) Good finishing accuracy on the cut surface. Effects such as this can be achieved.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the arrangement of parts of the mower of the present invention, Fig. 2 is a top view of Fig. 1, Fig. 3 is a side view showing the arrangement of parts of a conventional mower, and Fig. 4. FIG. 2 is a side view showing a conventional product in use. In the figure, 2 is a motor, 3 is a reciprocating motion converter,
4 is a blade, 5 is a battery, 7 is an outer frame, a handle portion 8, and an operating portion 11.

Claims (1)

[Scope of utility model registration request] an operating section comprising a motor, a reciprocating motion converter that converts the rotational force of the motor into reciprocating motion, and a blade that is reciprocated by the reciprocating motion converter; and supplying electric power to the motor of the operating section. In a battery-powered mowing machine, the battery has a battery, and a handle portion disposed between the battery and the actuating portion. A battery-powered mower that is characterized by its center of gravity.