JPH03216110A - grass mower - Google Patents

Abstract

PURPOSE:To obtain a mower of readily drawing reaped weeds backward and efficiently carrying out reaping operation because of no rolling of weeds between a subordinate wheel and a reaping blade by positioning a supporting frame of a subordinate wheel before a band saw endless reaping blade. CONSTITUTION:A mower which is a reaping device 7 consisting of a pair of left and right wheels 13 and 14 rotatable around a center of shaft in the longitudinal direction installed at a front side of machine 1 and a band saw endless reaping blade 15 wound between the wheels 13 and 14 and in which a supporting frame 12 of the wheel at the coupled driving side is positioned at a front side corresponding to a top blade 15A of the endless reaping blade 15.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a lawn mower.

[Prior art]

BACKGROUND ART Conventionally, grass mowers are known that include a mowing device configured by winding an endless cutting blade between a pair of left and right wheels that rotate around an axis in the front-rear direction.

[Problem to be solved by the invention]

In this type of mower, the frame that supports the wheel on the driven side is placed behind the endless cutting blade, so the frame becomes an obstacle during mowing work, and the grass after mowing does not move smoothly backwards. There is a problem in that it is difficult to pull out, and it also gets caught between the driven wheel body and the endless cutting blade, causing a blockage and making the cutting operation impossible.

The present invention aims to solve these problems and takes the following technical measures.

[Means to solve the problem]

That is, the technical means according to the present invention includes a pair of left and right wheels 13 and 14 that are installed at appropriate positions on the front side of the fuselage so as to be rotatable around an axis in the longitudinal direction, and a winding between these wheels 13 and 14. In a grass mower equipped with a reaping device 7 consisting of a band saw-type endless cutting blade 15 that has been rotated, a support frame 12 for supporting the wheel 14 on the swinging side is connected to the upper blade of the endless cutting blade 15. It is characterized by being located on the front side corresponding to 15A.

[Function and effect of the invention]

Therefore, according to the present invention, since the support frame of the driven wheel body is arranged in front of the endless cutting blade, the cut grass can easily come out backwards smoothly. The support frame can prevent grass from getting caught between the blades and the blade, making it possible to perform mowing work more efficiently.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

The fuselage 1 mainly consists of a power transmission main pipe 3 that houses a transmission shaft 2 that is long in the longitudinal direction.A traveling device 4 is mounted on the rear side of the main transmission pipe 3, and an engine 5 and a handlebar 6 are provided on the front part. is equipped with a reaping device i7, which will be described later.

A transmission case 8 is provided on the front end side of the main transmission pipe 3, and a driving shaft 9 is provided on the transmission case 8 so as to project forward, and a driven shaft 10 parallel to the driving shaft 9 is provided on the lateral side of the transmission case 8. are supported by a support frame 12 supported via a support rod 11 protruding from the transmission case 8, and a rolling wheel body 13 and a driven wheel body 14 are mounted on the drive shaft 9 and the driven shaft 10. At the same time, the reaping device 7 is constructed by winding a bandsaw-type endless cutting blade 15.

The support frame 12 supports the drive shaft 9 and the driven shaft 10 on the front side of the wheels 13 and 14.
The lower support frame 12b is located on the front side corresponding to the upper blade 15A of the endless cutting blade 15. It is configured to guard the front of the vehicle.

The support frames 16a and 16b shown in FIGS. 4 and 5 are arranged in front and behind the upper blade 15A of the endless cutting blade 15 in a plan view, so as to maintain the parallelism between the shearing wheel body 13 and the driven wheel body 14. It is configured to ensure that

Although the support frames 17a and 17b shown in FIGS. 6 to 8 are arranged on the rear side of the endless cutting blade 15, they have a vertically symmetrical shape and are centered on the axis P in the front-rear direction on the drive shaft body 13 side. It is configured so that it can be used by being reversed left and right (for example, from the state position indicated by the solid line in FIG. 6 to the state position indicated by the imaginary line in FIG. 6). After being reversed, it is configured to be tightened and fixed with bolts 18.

In addition, in the driving wheel body 14 around which the band saw type endless cutting blade 15 is wound, the driving wheel body 13 as shown in FIGS.
Two small-diameter wheels 14a and 14 whose diameter is much smaller than that of
By combining b, the cutting width can be substantially expanded by L compared to the case where a moving wheel body having the same diameter as the drive shaft body 13 is used.

During work, by moving the machine body 1 forward, the endless cutting blade 15 rotates to cut grass. In this case, the upper blade 15A and the lower blade 15B rotate in opposite directions. Short grass is mainly cut by the lower blade 15B.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Fig. 1 is a partially cutaway plan view of the mower, Fig. 2 is a front view of the main parts, Fig. 3 is a side sectional view of the main parts, and Fig. 4. is a plan view of the main part, Fig. 5 is a front view of the main part, Fig. 6 is a plan view, Fig. 7 is a side view, Fig. 8 is a front view of the main part, Fig. 9 is a plan view, and Fig. 10 is a plan view of the main part. The figure is a side view, 1st
Figure 1 is a front view of the main parts. 1 is the fuselage, 2 is the transmission shaft, 3 is the main transmission pipe, 4 is the traveling device,
5 is an engine, 6 is a handle rod, 7 is a reaping device, 8 is a transmission case, 9 is a single shaft, 10 is a driven shaft, and 11 is a support rod. 12 is a support frame, 13 is a moving body, 14 is a moving wheel body, and 15 is a band saw type endless cutting blade.

Claims (1)

[Claims] (1) A pair of left and right wheels 13 and 14 are installed at a suitable location on the front side of the machine so as to be rotatable around the axis in the front and back direction, and a bandsaw-type endless cutter is wound between these wheels 13 and 14. In a grass mower equipped with a reaping device 7 consisting of a blade 15, a support frame 12 for supporting the driven wheel 14 is located on the front side corresponding to the upper blade 15A of the endless cutting blade 15. A lawn mower that is characterized by one thing.