JPH07112382B2 - Swing mower - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a swinging mowing machine that automatically performs a stroke weeding operation.

[Problems to be Solved by Prior Art and Invention]

In a conventional mower, a grass cutting blade disposed in front of the machine rotates at high speed to cut weeds.

The present invention has developed a grass mower that automatically reciprocates a grass cutting blade to the left and right so that weeds can be brushed off by a brushing method, and a guide device essential to this automatic brushing mower. Is provided.

[Means for Solving the Problems]

 The gist of the present invention will be described with reference to the accompanying drawings.

The holding arm 4 is provided in front of the mower body 2 having the wheels 1,
The grass cutting blade plate 3 is provided at the tip of the holding arm 4, and the holding arm 4 is provided so as to swing the grass cutting blade plate 3 horizontally in the left and right direction by a swing drive device 5 provided on the front side of the mower body 2. Seen from the operator holding the grass cutting blade plate 3 to the right in the lengthwise direction of the holding arm 4 and on the front side of the grass cutting blade plate 3 to the outside of the approximately 1/4 arc blade edge, and the grass cutting blade plate 3 The guide rod a is arranged at a position slightly above the blade surface of the guide rod a, and the stroke rod b is connected to the front end of the guide rod a so as to be directed rearward along the holding arm 4 and the guide rod a. In particular, it relates to a swing mower characterized in that the wiping rod b is fixed to the holding arm 4 or the mowing blade plate mounting cylinder 24 by an appropriate means.

[Action]

 An embodiment in which the grass cutting blade plate 3 rotates counterclockwise will be described.

The swinging device 5 swings the mowing blade plate 3 from the right side to the left side with respect to the forward direction of the mowing machine body 2 to perform a stroke-grasping operation, and in this case, a sweeping operation is performed. The grass that has been mowed by the wiping rod b is stroked to the left side, and the weeds that could not be mowed by the guide rod a are prevented from being caught by the blade portion of the grass cutting blade plate 3 in the reverse movement, and this reciprocating operation is automatically performed. The weeds are neatly brushed and mowed.

〔Example〕

The drawings show an example of an embodiment of the present invention, in which a holding arm 4 is provided in front of a mowing machine body 2 equipped with wheels 1, and a cutting blade plate 3 is provided at the tip of the holding arm 4 to hold it. An arm 4 is provided on the front side of the mowing machine body 2 so as to swing the grass cutting blade plate 3 in the horizontal direction by a swing drive device 5, and the holding arm 4 of the grass cutting blade plate 3 is seen from the operator holding the handle. The right side of the grass cutting blade plate 3 to the outside of the approximately 1/4 circular arc edge on the front side of the mowing blade plate 3, and the guide rod a is arranged at a position slightly above the blade surface of the mowing blade plate 3, At the front end portion of the guide rod a, the sweeping rod b is continuously provided so as to be directed rearward so as to follow the holding arm 4, and the sweeping rod b is slid together with the guide rod a and the holding arm 4 or the grass cutting blade mounting tube 24. The present invention relates to a swinging mower fixed to the above by appropriate means.

In the drawing, the XX 'line and the YY' line are within the range of a quarter arc (Y'-Y ') where both lines intersect with each other.
Therefore, it is desirable to position the connecting portion with the wiping rod b.

In the drawings, reference numeral 32 is a guide rod attachment, 33 is a reinforcing rod, and 34 is a reinforcing rod.
Is a mounting rod, 6 is a steering wheel, 7 is an engine, 8 is a drive connecting portion, 9 is a variable power distribution box, 10 is a wheel transmission case for transmitting power to the wheels 1, 11 is a pivot fulcrum 11 for an eccentric disc 11 '. ″ Is an eccentricity adjusting device, 12 is a crank rod whose stroke is variable by the eccentricity adjusting device, 13 is a connecting arm that moves up and down with an intermediate point as a fulcrum,
14 is an ascending / descending rod that swings the mowing blade plate 3, 15 is a sorting pulley, 16 is a crank pulley, 17 is a V belt, 18 is a mowing mission case obliquely installed in front of the variable speed power sorting box 9, and 19 is Cover, 20 is a variable power distribution box 9
, A driving bevel gear whose lower end is continuously provided, 21 is a passive bevel gear, 22 is a rotating body standing upright on the upper portion of the passive bevel gear 21, 23 is a mounting cylinder projecting obliquely downward with respect to the rotating body 22,
24 is a grass cutting blade mounting tube, 25 is a clipper blade for cutting weeds on a slope, 26 is a handle for adjusting a swinging angle, 27 is a ridge upper surface, 28
Is a ridge slope, 29 is a weed, 30 is a driving bevel gear 20 on the back,
Using a passive cutting bevel gear on the upper surface of the mowing drive box, the power for the hair clipper blade 25 and the power for the grass cutting blade plate 3 are separated by the collecting portion 18 'provided at the lower end of the mowing mission case 18, and the bevel mechanism is set. Through the rotary shaft 31 in the holding arm 4
The rotation of the rotary shaft 31 is caused to rotate the grass cutting blade plate 3 at a high speed through a bevel mechanism.

〔The invention's effect〕

Since the present invention is configured as described above, weeds are automatically mowed to the left side of the grass cutting blade plate provided at the tip of the holding arm by the swinging motion of the holding arm. At the time of wiping, the grass cut by the pressure of the wiping rod b is wiped to the left, and the weeds that could not be shaved by the guide rod a are prevented from getting caught on the blade when returning, so that the grass is always clean. It becomes a swinging mower with excellent practicality that can be mowed.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a plan view showing a swinging state of a grass cutting blade plate. 1 ... Wheel, 2 ... Mowing machine body, 3 ... Mowing blade plate, 4 ...
Holding arm, 5 ... Swinging drive device, 24 ... Mowing blade plate mounting cylinder, a ... Guide rod, b ... Natting rod.

Claims (1)

[Claims] 1. A holding arm 4 is projectingly provided in front of a mowing machine body 2 equipped with wheels 1, a cutting blade plate 3 is provided at the tip of this holding arm 4, and the holding arm 4 is provided on the front side of the mowing machine body 2. The grass cutting blade plate 3 is provided so as to horizontally swing in the horizontal direction by the swinging and driving device 5, and the grass cutting blade plate 3 is seen from the operator holding the handle.
Of the holding arm 4 to the right in the length direction of the grass cutting blade plate 3 to the outer side of the approximately 1/4 circular arc blade edge on the front side, and a guide rod a at a position slightly above the blade surface of the grass cutting blade plate 3. The guide rod a is arranged in series so that the sweeping rod b is directed rearward so as to follow the holding arm 4 and the sweeping rod b is held together with the guide rod a to hold the holding arm 4 or the grass cutting blade. A swing mower characterized by being fixed to the plate mounting cylinder 24 by an appropriate means.