JPS62115212A - Reaper - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] 【Technical field】

The present invention relates to an electric pruner for pruning branches and the like.

[Background technology]

In the conventional mowing machine, as shown in FIG. 8, the blade part 2 protrudes from the front end of the lower surface of the main body 1, and the main handle 3 is provided on the back surface of the main body 1 approximately parallel to the blade part 2. An inverted U-shaped auxiliary handle 4 was provided on both sides of the handle 1, slightly tilted forward. The bipedal blade part 2, the main handle 3, and the auxiliary handle 4 were all fixed to the main body 1. Therefore, with a conventional mower, the top surface (top surface) of the hedge
When trimming a hedge, the height of the top of the hedge is generally higher than a person's chest level (often lower than the mouth level), so the worker should cut one side of the hedge as shown in Figure 9. Main handle 3 with hand
, hold the auxiliary handle 4 with the other hand, raise both elbows and lift the mower horizontally to trim the hedge. The wrists of both hands holding the main handle 3 and the auxiliary handle 4 are forced to extend toward the thumb side, which makes the mowing machine inconvenient to use and causes pain in the wrists when working for a long time. Also, if you stand on a ladder or stand and position the top of the hedge so that it is below the chest, it will be easier to use the cutting slope, but you will have to move the ladder or stand each time while cutting. However, there are disadvantages in that it is time consuming, takes a long time, and cannot be done efficiently. Conversely, when trimming the top of a hedge that is lower than a person's knees, bend your hips and knees, and bend the wrists of both hands that are gripping the main handle 3 and auxiliary handle 4 so that they are short on the thumb side. However, the mower has to be held horizontally at a low position, making it difficult to use and making the work tiring.

[Purpose of the invention]

The present invention was made in view of the above-mentioned technical background, and its purpose is to easily hold the mower horizontally even in high positions above the chest or low positions below the knees. The purpose is to enable easy and efficient pruning work.

[Disclosure of the invention]

The mowing machine of the present invention is a mowing machine having a main handle 2, a main handle 3, and an auxiliary handle 4 in a main body 1, the main handle 3 and the auxiliary handle 4 are integrally formed, and the main handle 3 and the auxiliary handle This is characterized in that the angle of the blade 4 relative to the blade portion 2 is adjustable. Therefore, the angles of the main handle 3 and the auxiliary handle 4 can be adjusted to angles that are easy to hold according to the mode of use of the mower, and the mower can be easily held, making it easy to use. For example, when trimming the top of a hedge at a high position above the chest level, rotate the main handle 3 and the auxiliary handle 4 downward so that the mower is held horizontally above the tree in a natural position. The end is to keep it.
For efficient mowing, and when trimming the top of the hedge at a low position below the knees, use the main handle 3.
By rotating the auxiliary handle 4 upward, the user can perform the pruning operation in a natural posture. Moreover, even when the main handle 3 and the auxiliary handle 4 are rotated, the main handle 3 and the auxiliary handle 4 are integral and maintain a constant angle, so the balance is always constant and the usability is improved. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. A motor (not shown) for driving the blade portion 2 is housed inside the main body 1, and the blade portion 2 projects from the front end of the lower surface of the main body 1. This blade part 2 is driven by a motor to perform the mowing operation, but the blade part 2
It is fixed to the main body 1 as a whole, and its angle with respect to the main body 1 does not change. A main handle 3 having a substantially cylindrical shape is provided on the back of the main body 1, and an auxiliary handle 4 having a substantially inverted U-shape is provided at the top of the main body 1. The main handle 3 and the auxiliary handle 4 are originally separate bodies, but the bifurcated parts 6 at the proximal end of the main handle 3 are arranged on both sides of the main body 1, and a notch is cut out at the outer edge of the tip of the bifurcated part 6. By fitting the fitting portion 7 with the pivot portion 8 at the base end of the auxiliary handle 4, the main handle 3 and the auxiliary handle 4 are integrally formed so as to form an obtuse angle θ (>90 degrees). In this way, the main handle 3 and the auxiliary handle 4 are integrated.
As shown in Fig. 4, it is rotatably attached to the housing 11 of the main body 1 by screws 9 and nuts 10, and the main handle 3 and the auxiliary handle 4 can only rotate together. , as shown in FIG. 2, the main handle 3 and the auxiliary handle 4 are designed to rotate relative to the main body 1 within the ranges of Δθ and Δθ2 above and below the standard position shown by solid lines in FIG. . The main handle 3 and the auxiliary handle 4 are attached to the main body 1 at approximately the center of gravity of the main body 1. Further, around the hole 12 through which the screw 9 on the inner surface of the bifurcated portion 6 of the main handle 3 is inserted, there is provided an annular gear-shaped locking unevenness 13, through which the screw 9 on the outer surface of the housing 11 is inserted. An annular gear-shaped locking unevenness 15 is also provided around the through hole 14, and the elastic force of the compression spring 16 inserted between the pivot portion 8 of the auxiliary handle 4 and the nut 10 The concave and convex portions 13 and 15 for gripping both ends are pressed together and engaged to prevent the main handle 3 and the auxiliary handle 4 from rotating inadvertently. Then, the angle of the main handle 3 and the auxiliary handle 4 is v
14 If you want to adjust the handle, apply a force equal to or higher than the locking load to the main handle 3 * or the auxiliary handle 4 to rotate the main handle 3 and the auxiliary handle 4. Loosen the handle 10 and adjust the a. ,
After adjustment, the nut 10 may be tightened again to prevent accidental rotation.) Note that a power cord 5 for the motor is pulled out from the rear end of the main handle 3. For example, as shown in Figure $1, when trimming the top surface of a hedge, etc. at a height above the chest, the main handle 3 and the auxiliary handle 4 are rotated by an appropriate angle Δθ, and the main handle 3 and the auxiliary handle 4 are By rotating the handle 3 downward and simultaneously rotating the auxiliary handle 4 upward, the mowing work can be performed in a comfortable and natural posture. Conversely, when trimming the top of a hedge at a position lower than the knees, for example, rotate the main handle 3 upward and tilt the auxiliary handle 4 forward to hold the trimmer at a low position from above. It can be made easier. FIG. 5 shows the structure of the blade part 2. In the blade section 2, the movable blade 18 is slid onto the fixed blade 17, and a pressing spring 20 is used between the movable blade 18 and a side piece 19 placed on the movable blade 18 to move the movable blade 18 into the fixed blade. 17, and is assembled with screws 21, nuts 22, and bushings 23. From the guide piece 19, the movable blade 1
A hanging piece 24 is installed vertically toward the surface of the hanging piece 2.
As shown in FIG. 6, a small gap δ is formed between the tip of the blade 19 and the movable blade 18.
There is no resistance between the movable blade 1 and the sliding resistance when the movable blade 1 is slid by the motor. On the other hand, even if the movable blade 18 is tilted as shown in FIG. 7, if the movable blade 18 is tilted a little too much, the movable blade 18 will come into contact with the lower end of the hanging piece 24 of the id piece 19 and will be prevented from tilting any further. The cutting edge of the blade 18 falls between the cutting edges of the fixed blade 17, making it difficult to cause interference between the cutting edges, reducing wear on the cutting edge and improving sharpness life. (In a pruning knife whose main body is equipped with a blade, a main handle, and an auxiliary handle, the main handle and the auxiliary handle are formed integrally, and the angles of the main handle and the auxiliary handle with respect to the blade are adjustable. This has the advantage that the angles of the main handle and auxiliary handle can be adjusted to an angle that is easy to hold according to the way the mower is used, making it easy to hold the mower and making it easy to use.For example, from the chest When trimming the top of a hedge at a high position, the main handle and auxiliary handle can be rotated downward to hold the cutting bar horizontally on one side in a natural position. ,
It enables efficient mowing, and when trimming the top of a hedge at a low position below the knees, the main handle and auxiliary handle can be rotated upwards to perform the mowing work in a natural posture. . In addition, since the main handle and auxiliary handle are integrated, they do not rotate separately when grasped with both hands, and can always be held securely with a constant balance, allowing long hours of work. But now I don't get tired easily. Additionally, there is no need to use a ladder or stand to work, improving work efficiency.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of the usage state showing an embodiment of the present invention, $2
The figure is a side view of the same mower as above, Figure 3 is a partially cutaway plan view showing the attachment of the main handle and auxiliary handle to the body of the above, and Figure 4 is the lock of the main handle and auxiliary handle as above. 5 is a perspective view of the blade portion of the same as above, FIG. 6 is an enlarged sectional view of the blade portion of the same as above, FIG. 7 is an explanatory view of the action of the blade portion of same as above, and FIG. 8 is A side view of the conventional example and FIG. 9 are explanatory views of the same usage state as above, where 1 is the main body, 2 is the blade portion, 3 is the main handle, and 4 is the auxiliary handle.

Claims (1)

[Claims] (1) In a trimming machine whose main handle is equipped with a blade, a main handle, and an auxiliary handle, the main handle and the auxiliary handle are integrally formed, and the angles of the main handle and the auxiliary handle with respect to the blade are adjustable. A mowing machine characterized by: