JPH022181Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in a lawn mower in which reciprocating type cutting blade mechanisms are arranged in parallel from front to back when viewed from the side, and are arranged side by side in parallel from side to side.

When multiple reciprocating blade mechanisms are installed side by side on the left and right sides of a lawn mower, in order to avoid leaving uncut areas adjacent to the side-by-side blade mechanisms, the blades are installed in parallel on the left and right. The mechanisms are arranged so that they are lined up front and back when viewed from the side, so that the adjacent parts of the cutting blade mechanisms that are lined up on the left and right overlap when viewed from the front. Uncut areas begin to appear in adjacent areas of the cutting blade mechanism installed in parallel with the cutting blade mechanism.

The purpose of the present invention is to solve this problem and to prevent uncut areas from being left uncut in adjacent parts of the cutting blade mechanisms arranged side by side on the left and right sides.

The present invention was developed after conducting various studies and studies to achieve the above-mentioned purpose.When the cutting blade mechanism is a rotary blade type in which the cutting blade rotates around a vertical axis, it is possible to wrap adjacent parts back and forth. However, if the cutting blade mechanism is a reciprocating type that moves the clipper-type cutting blade back and forth from side to side, this will inevitably cause uncut areas to be left behind. , the grass cut by the cutting blade mechanism located in front flows in front of the part of the cutting blade mechanism located in the rear where it overlaps with the cutting blade mechanism located in the front,
Since the grass has been cut at the root and is in a floating state, when it comes into contact with the reciprocating movable blade of the cutting blade mechanism, it moves from side to side with the movable blade, and the grass is not cut and leaves behind. Accumulates on the front of the cutting blade mechanism,
This is because the front surface of the rear mower blade mechanism is covered, making it impossible to cut, and the grass that is cut by the front mower blade mechanism and flows backwards is caused by the grass being cut by the front mower blade mechanism. We have learned that by providing a guide to the side of the cutting blade mechanism at the rear of the cutting blade so that it does not face toward the front, this problem of uncut leaves can be effectively resolved. It was completed based on this.

In order to achieve the above-mentioned object, the lawn mower of the present invention has a plurality of reciprocating type cutting blade mechanisms arranged in parallel in the front and back when viewed from the side, so that the adjacent parts of each cutting blade mechanism wrap back and forth. The grass cut by the front cutting blade mechanism is placed between the front cutting blade mechanism and the rear cutting blade mechanism to the side of the rear cutting blade mechanism. It is characterized by being equipped with a guide to guide the user.

Next, an example of implementation will be described in detail with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes the body of a lawn mower A. An engine 2 serving as a prime mover is installed on the upper side, and an output shaft 20 of the engine 2 and a transmission mechanism 30 are mounted on the lower side. A running wheel 3 for transmission is pivotally supported, and a handle 4 for operating the body 1 is installed on the rear side.

Reference numerals 5 and 5 refer to two reciprocating type cutting blade mechanisms installed in parallel in the machine body 1, including a fixed cutting blade 51 fixed to the machine frame 50 and a movable blade mechanism that reciprocates the cutting blade 51 from side to side. This is a normal type consisting of a blade 52 and a second blade.
As shown in the figure, the first
As shown in the figure, their adjacent inner ends are arranged so as to wrap back and forth and are supported by the fuselage 1. And the cutting blade mechanism 5 located in the front
In this case, the machine frame 50 is fixedly supported on a cylindrical support machine frame 10 that protrudes forward from the machine body 1, and a bell crank-shaped operating rod 54 pivotally supported on the machine frame 50 by a support shaft 53 is attached to the support machine frame 10. The reciprocating rod 60 is connected to a reciprocating rod 60 that is pivotally supported to slide back and forth within the machine frame, and the reciprocating rod 60 is connected to the output shaft 20 of the engine 2 via a transmission mechanism 6a and mounted on the fuselage 1. The movable blade 52 is configured to reciprocate from side to side by being driven by the suspended reciprocating mechanism 6. Also,
The mowing blade mechanism 5 located at the rear is operated by driving the movable blade 52 of the movable blade mechanism 5 by linking the operating lever 54, which is rotatably supported on the machine frame 50 of the mower with the support shaft 53, with the reciprocating movable lever 60 described above. What is done is the same as the previous cutting blade mechanism 5, but the machine frame 5
0 is attached to the supporting machine frame 11 fixedly provided on the aircraft body 1,
A wire 71 is rotatably supported by a support shaft 55 coaxial with the axis of the cylindrical support frame 10, and the proximal end is connected to a lever 70 provided on the handle 4. By operating this lever 70 and loosening the pull of the wire 71, it rotates around the support shaft 55 and follows the slope of the ridge when mowing grass on the ridge. It is designed so that

Reference numeral 8 denotes a guide provided between the front cutting blade mechanism 5 and the rear cutting blade mechanism 5, and a guide 8 located behind the grass dividing plate 9 installed on the inner end side 5a of the front cutting blade mechanism 5. By extending the end side long to the rear beyond the cutting blade mechanism 5 in the front position, the extended portion can be formed integrally with the grass dividing plate 9 and supported by the grass dividing plate 9. It is equipped. As shown in FIG. 2, the guide 8 is formed at a height that covers the front surface of the cylindrical support frame 10 and the front end of the reciprocating rod 60, as shown in FIG. As shown in the figure, the blade is gradually moved toward the outer end 5b of the front cutting blade mechanism 5 toward the rear, so that the rear end is positioned outside the inner end 5a of the rear cutting blade mechanism 5. It has been set up.

Next, to explain the function and effect, the lawn mower A according to the present invention configured as described above has a machine body 1.
In this case, a plurality of reciprocating type cutting blade mechanisms 5 are arranged in parallel in the front and back in side view, and the adjacent parts of each cutting blade mechanism 5 are arranged in a state where they overlap in the front and back. A guide 8 is provided between the cutting blade mechanism 5 and the rear cutting blade mechanism 5 to guide grass cut by the front cutting blade mechanism 5 and flowing backward toward the side of the rear cutting blade mechanism 5. This prevents grass cut by the front cutting blade mechanism 5 and flowing backward as the machine body 1 advances from coming to the front of the rear cutting blade mechanism 5. The front of the cutting blade mechanism 5 is
The cutting mechanism is damaged by being covered with floating grass that has been cut by the front cutting blade mechanism 5, and this eliminates the problem of uncut parts that occur in adjacent parts of the parallel cutting blade mechanisms 5... can be resolved.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a mower in which the present invention can be implemented, and FIG. 2 is a side view of the same. Explanation of drawing symbols, A...Mower, 1...Airframe,
10, 11...Support machine frame, 2...Engine, 20
... Output shaft, 3 ... Running wheel, 30 ... Transmission mechanism,
4... Handle, 5... Cutting blade mechanism, 5a... Inner end side, 5b... Outer end, 50... Machine frame, 51... Cutting blade, 52... Moving blade, 53... Support shaft, 54... Operating rod, 55... Support shaft, 6... Reciprocating mechanism, 6a...
Transmission mechanism, 60... reciprocating rod, 70... lever,
71... Wire, 9... Grass division board, 8... Guide.

Claims (1)

[Scope of utility model registration request] The fuselage 1 includes a plurality of reciprocating cutting blade mechanisms 5...
are arranged in parallel in the front and back in side view, and the adjacent parts of each cutting blade mechanism 5 are arranged so that they overlap in the front and back, and are arranged side by side on the left and right, so that the front cutting blade mechanism 5 and the rear cutting blade mechanism 5 A grass mower characterized in that a guide 8 is installed between the front and rear cutting blade mechanisms 5 to guide the grass cut by the front cutting blade mechanism 5 toward the side of the rear cutting blade mechanism 5.