JPS6159686B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides for a machine body traveling by a traveling device to be provided with a rotary blade that rotates along a horizontal plane and a rotary blade that rotates along an inclined plane that is inclined with respect to the horizontal plane, as viewed from the front. A mower that is installed in parallel with the ridges so that the grass growing on the upper surface of the ridge and the grass growing on the slope of the ridge can be cut at the same time.It is mainly used to cut grass on the ridge. This is related to improvements.

When mowing grass on a ridge with a mower configured as described above, the grass cut from the slope of the ridge will flow downward along the slope and fall onto the field, and after being cut. A problem arises that makes processing troublesome.

An object of the present invention is to ensure that when mowing grass on a ridge with the above-mentioned mower, the grass cut by the rotary blade that operates along the slope of the ridge is directed toward the top of the ridge. The idea is to have it scraped up and accumulated on the upper surface of the ridge.

In order to achieve this object, the lawn mower according to the present invention has two blades, one for rotating along a horizontal surface, and one for rotating along an inclined surface inclined with respect to the horizontal surface, on the machine body which is driven by a traveling device. When viewed from above, the rotary blades are arranged side by side on the left and right, and when viewed from the side, rotary blades that rotate along a horizontal plane are located in front, and behind the rotary blades, a rotary blade that rotates along an inclined surface is located between these rotary blades. The rotary blade is mounted on the machine body in such a manner that the cut grass is positioned with a flow interval, and the rotary blade rotates along the slope, and the lower edge side thereof is driven to rotate from the rear to the front.
The rotary blade rotates along a horizontal plane, and the side adjacent to the rotary blade rotated along the inclined plane is driven so as to rotate from the rear to the front.

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

In Figs. 1 and 2, a is a main body of a lawn mower A that is freely movable on a traveling device b, and c and d are the main body of the mower A, as seen from the front (in Figs. 1 and 2). (viewed from the left), the rotary blades are mounted in two rows on the left and right, and c is the third rotary blade.
As shown in the figure, d is a rotary blade that rotates along a horizontal plane so as to act on the upper surface 90 of the ridge 9, and d is a rotary blade that rotates along a slope so as to act on the slope 91 of the ridge 9. .

The machine body a includes a machine frame 1 consisting of a longitudinally long shaft cylinder (left and right in FIG. 1), a wheel supporting machine frame 2 fixed to the rear end of the machine frame 1 in the form of a gate when viewed from the front. It consists of a handle 3 which is formed into a U-shape in plan view and whose base end is attached and fixed to the upper surface of the wheel supporting machine frame 2, and the rotary blade c and the handle 3 are attached to the rear end of the cylindrical machine frame 1. A prime mover (engine) E for driving the rotary blade d is assembled with its output shaft protruding into the cylindrical machine frame 1. The single wheel 20 constituting the device b is pivotally supported in an idle state, and the driver can move the handlebars 3 on the left and right sides of the steering wheel 3.
By standing between 0 and 30, grasping the handlebars 30 and 30 and pushing it while walking, it is formed into a single-wheeled walking type that runs on the idler wheel 20. The vehicle may be formed as appropriate, such as a self-propelled type that is driven and travels, or a passenger type that is equipped with a seat and travels while riding.

The rotary blade c that operates along the horizontal plane is provided by assembling and fixing a support frame 4, which also serves as a gear case, to the front end of the cylindrical machine frame 1, and fixing the support frame 4 to the support frame 4. The rotary blade c is mounted by pivotally supporting a rotary shaft assembled at the center of the rotary blade c. The upper end of the rotary shaft of the rotary blade c is used as an input shaft, and the input is carried out via a transmission mechanism provided in the supporting machine frame 4 which also serves as the gear case, and a flexible shaft disposed in the inner cavity of the cylindrical machine frame 1. The power is transmitted to the output shaft of the above-mentioned prime mover E, and the rotary blade c is driven by the action of the prime mover E, and the direction of rotation of the rotary blade c due to the drive is shown by the double-lined arrow in FIG. As shown, the side adjacent to the rotary blade d, which rotates along the inclined surface, is set in the direction of rotation from the rear to the front of the body a.

The rotary blade d, which rotates along the inclined surface, is attached to the lower end of a stay 5 whose upper end is attached to the base end of the handle 3, which is integrally connected to the machine frame 1.
0, and a fitting boss 60 attached to the upper surface of one end of the support frame 6 so as to be adjustable in left and right direction is fitted onto the support shaft 50, and the support frame 6 is fixed to the lower end of the stay 5. The rotary blade d is supported so as to be able to swing vertically around a support shaft 50, and a rotary shaft attached to the center of the rotary blade d is supported on the supporting machine frame 6 via a bearing portion 61. As the support frame 6 rotates downward about the center of the ridge 9 as shown in FIG.
1, and when viewed from the side, as shown in FIG. It is assembled and supported on the machine body a so that the grass is positioned at a distance L that allows the grass to flow.
Further, transmission of the rotational power to the input shaft of the rotary blade d is carried out by a shaft-cylindrical coupling 62 on the upper surface side of a bearing portion 61 provided on the support machine frame 6 so as to pivotally support the rotation shaft of the rotary blade d. The upper end of the rotary shaft of the rotary blade d is disposed in the coupling ring 62 as an input shaft, and the rotary blade d is rotated along the horizontal plane assembled and supported at the front end of the machine frame 1. Rotary blade c
A coupling ring 40 is installed on the upper surface of the supporting machine frame 4, and this coupling ring 40 houses an output shaft that rotates in conduction with the input shaft of the rotary blade c, and a flexible shaft is housed in this coupling ring 40 and the coupling ring 62. The input shaft of the rotary blade d and the output shaft of the rotary blade c provided on the support frame 4, which also serves as a gear case, are connected to the flexible tube 7 by connecting coupling rings 70 and 71 at both ends of the flexible tube 7. The rotating direction of the rotary blade d due to its drive is set to the lower edge side when it is along the slope 91 of the ridge 9, as shown in FIG. The side of the fuselage a is set to rotate from the rear to the front of the fuselage a, as shown by the double-lined arrow in FIG.

The output shaft, which is provided for transmitting rotational power to the input shaft of the rotary blade d that rotates along this inclined surface via a flexible shaft, is, for example, located in the middle part of the machine frame 1 in the longitudinal direction. A gear box W housing a transmission mechanism that rotates in conduction with the flexible shaft is provided as shown by the chain line in FIG. A gearbox W is provided at the base end of the machine frame 1 to house a transmission mechanism that communicates with the output shaft of the prime mover E, as shown by the chain line in FIG. The output shaft may be installed at an appropriate part of the fuselage a, such as by providing a coupling Y in the coupling Y and disposing the output shaft in communication with the transmission mechanism.

In the illustrated embodiment, 41 is a sled body provided on the supporting machine frame 4, e is a control lever attached to the handle 3 to control the operation of the prime mover E, and 63 is a rotary blade d relative to the machine body a. In order to adjust the assembly position in the left-right direction, a bracket of the fitting boss part 60 is assembled to the support machine frame 6 so that the displacement can be freely adjusted;
Reference numeral 64 denotes a sled body provided on the supporting machine frame 6, and 51 denotes a coupling device for removably connecting the upper end of the stay 5 in order to change the assembly position of the rotary blade d to the opposite side of the machine body a. The above-mentioned handle 3, which is integrally connected to the machine frame 1, is provided with a pair of left and right opposite handles. In addition, 8 is a supporting machine frame 6 for the rotary blade d.
The outer 8 of the release wire 80 has one end connected to the rotating end side of the support machine frame 6.
The other end of the outer 81 is fixed to a stopper 82 provided on the handle 3, and a pull 84 is connected to the other end of the inner 83 pulled out from the other end of the outer 81, and the inner 83 is engaged with the pull 84. A locking tool 85 is provided on the lower surface of the handle 3 to hold the handle 3 in the pulled out state. By removing the puller 84 from the locking tool 85 on the lower surface of the handle 3, the support frame 6 can be rotated around the support shaft 50. Let the moving end side rotate freely. 42 is an auxiliary sled body, which may be omitted.

Next, to explain the function and effect, the mower A according to the present invention configured as described above rotates along a horizontal plane in order to act on the upper surface 90 of the ridge 9 as shown in FIG. A rotary blade c provided on the machine body a, and a rotary blade d provided on the machine body a to rotate along the slope in order to act on the slope 91 of the ridge 9.
As shown in Fig. 2, the rotary blade c that rotates along a horizontal surface is located in front, and the rotary blade d that rotates along an inclined surface is located behind it at a distance L. It is mounted on the machine frame a, and the rotary blades c and d are located at the rear rotary blade d, which acts on the slope 91 of the ridge, as shown by the double-line arrow in Fig. 4. In the case of the front rotary blade c whose lower end side rotates from the rear to the front and acts on the upper surface of the ridge 9, the side adjacent to the rear rotary blade d rotates from the rear to the front. Therefore, the grass cut from the slope 91 by the rear rotary blade d is rotated between the front rotary blade c and the rear rotary blade d, as shown by the thick arrow A in Fig. 4. From the front and back spacing L formed between the front rotary blade C and the front rotary blade C
The grass is raked up and released toward the upper surface of the ridge 9 behind the rotary blade c in front of it, where the grass has been cut.

Therefore, at the same time as the grass on the upper surface 90 of the ridge 9, the grass on the slope 9
The grass to be cut from the ridge 9 is efficiently mowed from the ridge 9 without being disturbed by the rotary blade c and the machine a that cut the grass on the upper surface 90 of the ridge 9 and uncut grass growing on the upper surface of the ridge 9. It is possible to scrape it up to the upper surface 90 of the ridge 9 and accumulate it on the upper surface of the ridge 9.

[Brief explanation of the drawing]

Fig. 1 is a side view of an embodiment of the device of the present invention, Fig. 2 is a plan view of the above device, Fig. 3 is a front view of the main parts of the above device in a working state, and Fig. 4 is an explanation of the operation of the above device. It is a diagram. Explanation of drawing symbols, A...Mower, a...Airframe,
b...Traveling device, c, d...Rotary blade 1...Machine frame,
2...Wheel support machine frame, 20...Wheel, 3...Handle, 30...Handle rod, 4...Support machine frame, 4
0... Coupling ring, 41... Sled body, 5... Stay, 50... Support shaft, 51... Connector, 6... Support machine frame, 60... Fitting boss part, 61... Bearing part,
62...Cup ring, 63...Bracket, 6
4...Sled body, 7...Flexible tube, 7
0,71...Cup ring, 8...Hanging mechanism,
80...Release wire, 81...Outer,
82... Stop, 83... Inter, 84... Pull, 85... Locking tool, 9... Ridge, 90... Top surface, 91... Slope, E... Prime mover (engine),
e...control lever, L...distance, W...gearbox, Y...coupling.

Claims (1)

[Claims] 1. A rotary blade that rotates along a horizontal plane and a rotary blade that rotates along an inclined plane that is inclined with respect to the horizontal plane are shown in a front view on a machine body traveling by a traveling device,
The rotary blades are arranged in parallel on the left and right, and when viewed from the side, rotary blades that rotate along a horizontal surface are located in front, and behind the rotary blades, rotary blades that rotate along an inclined surface are located between these rotary blades. The rotary blades are mounted on the aircraft body, arranged so that there is a gap between the grass to flow, and the rotary blades rotate along the slope, and the lower edge side of the rotary blades rotates from the rear to the front. A lawn mower characterized in that a rotary blade that rotates along a surface is driven so that the side adjacent to the rotary blade that rotates along the inclined surface rotates from the rear to the front.