JPH0746109Y2 - Mower - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention is equipped with a rubber crawler on the fuselage, and is mainly used for cutting grass and small trees growing on the slope of a dike along contour lines and collecting cut grass and trees. For mowers used in.

[0002]

2. Description of the Related Art In a mower, a mower unit equipped with a rubber crawler is equipped with a mowing unit at the front and a driver's seat unit is fitted at the rear thereof, so that the driver can drive in a standing position. It is designed to drive into a seat unit. Therefore, for example, when cutting the slope of a dike, the driver's seat unit is
Alternatively, if a state close to this is maintained, it is easy to perform a driving operation. The conventional mower has a structure in which the driver's seat unit can be fixed at several points inclined with respect to the machine body by attaching and detaching pins. By preliminarily inclining and fixing the driver's seat unit with respect to the machine body in correspondence with the slope of the slope, the driver's seat unit is maintained in a vertical state or a state close to this during work. However, since the slope of the slope is rarely constant along the direction of movement of the mower, in the driver's seat unit with a structure in which the fixed position is changed by such pins, the inclination along the direction of movement of the aircraft is There is a possibility that the driver cannot keep up with the change and the driver's body leans greatly, which may cause an erroneous operation.

[0003]

[Problems to be Solved by the Invention] The present invention is mounted on the rear part of a machine when cutting or collecting grass alongside the contour line of plants and trees growing on the slope such as an embankment by a mower. An object of the present invention is to make the driver's seat unit follow the inclination of the slope and always maintain the vertical position to facilitate the driving operation.

[0004]

Means for Solving the Problem In order to solve this problem, the means adopted by the present invention is to mount a mowing unit on the front part of a machine equipped with a rubber crawler so that the driver can get on in a standing posture. In a mower having a configuration in which the driver's seat unit is attached to the rear part of the machine body, the driver's seat unit is
A footrest plate is horizontally attached to the lower end, and a portion near the upper end thereof is rotatably supported by the machine body via a support pin, and the movable main pillar is mounted at an appropriate position, An inclination sensor for detecting the inclination of the movable main pillar, and a drive device for rotating the movable main pillar about the support pin, and the inclination sensor detects the inclination of the movable main pillar. It is configured such that the movable main pillar is always kept vertical by detecting and activating the drive device by the detection signal.

[0005]

[Advantage of the Invention] When mowing and collecting grass on a slope such as an embankment, the driver's seat unit is configured even if the slope of the slope changes along the traveling direction of the aircraft. An inclination sensor attached to the movable main pillar that is installed detects the inclination at that location. Then, the drive device is activated by the detection signal, and the movable main pillar is rotated about the support pin so that the movable main pillar becomes vertical. For this reason, even if the slope of the slope changes along the traveling direction of the machine body, the driver's seat unit always maintains the vertical position, which facilitates the driving operation.

[0006]

EXAMPLES The present invention will be described in more detail below with reference to examples. 1 to 3, rubber crawlers 2 are attached to the left and right ends of the machine body 1, and a mowing unit 3 is attached to the front portion of the machine body 1 so as to be able to move up and down. A driver's seat unit A is attached to the rear part of the machine body 1. A movable main pillar 5 is rotatably supported on a rear surface of the machine body 1 via a support pin 4 in a vertical plane. A footrest plate 6 is horizontally attached to the lower end of the movable main pillar 5, and a protective arm 7 for letting the driver M's body enter is attached to the upper end of the footrest plate 6. A portion of the movable main pillar 5 near the upper end is supported by the machine body 1 via bearing pins 4. An inclination sensor-8 for detecting the inclination of the movable main pillar 5 with respect to the vertical line is attached to a portion of the front surface of the movable main pillar 5 (the surface opposite to the surface facing the driver M) above the support pin 4. Has been done. The inclination sensor-8 has a structure of detecting by a capacitance type detection method and converting it into an analog signal.

As shown in FIGS. 2 and 4, the drive unit B for rotating the movable main column 5 has a structure for converting the rotation of the motor unit 9 into the linear movement of the working rod 11. The bracket 12 attached to one end is supported by the machine body 1 via the pin 13, and the tip of the working rod 11 is connected to the movable main pillar 5 via the pin 14. Figure 2
As shown in FIG. 2, the connecting portion between the working rod 11 and the movable main pillar 5 supports the movable main pillar 5 on the body 1 by the support pins 4
Below. Therefore, when the motor portion 9 is activated and the action rod 11 is moved back and forth, the movable main column 5 rotates about the support pin 4 in the vertical plane. The motor unit 9 of the drive unit B is started / stopped by the output signal of the tilt sensor-8.

At the time of work, the driver M moves the movable main pillar 5
The operator rides on the footrest plate 6 and performs a driving operation in a standing posture. Then, when cutting plants and the like on the slope 15 such as an embankment along the contour line, as shown in FIG. 2, the body 1 inclines corresponding to the inclination of the slope 15, but the movable main pillar 5 The tilt sensor 8 attached to the main body 5 detects the tilt of the movable main column 5 with respect to the vertical line, and when tilting, the motor unit 9 of the drive unit B is activated and the working rod 11 moves. The movable main pillar 5 is held vertically by moving forward or backward. For this reason,
Even when the inclination angle of the slope 15 changes along the traveling direction of the machine body 1, the movable main pillar 5 is always kept vertical, so that the driver M can always perform a driving operation in a vertical posture.

[0009]

According to the present invention, the tilt sensor is attached to the movable main pillar rotatably mounted on the rear portion of the machine body through the support pin, and the drive device is activated by the detection signal of the tilt sensor. Since the movable main pillar is configured to maintain vertical at all times, the movable main pillar follows the slope of the slope when contour cutting or collecting grass on the slope such as an embankment. Rotate so that it is always vertical. As a result, even if the inclination angle of the slope changes along the traveling direction of the aircraft, the driver can always perform the driving operation in the vertical posture, so that the driving posture is stable and there is no fear of erroneous operation. .

[Brief description of drawings]

FIG. 1 is a side view of a mower according to the present invention.

FIG. 2 is a rear view of the mower according to the present invention.

FIG. 3 is an enlarged view of a portion of a driver's seat unit A in FIG.

FIG. 4 is an enlarged plan view of a drive device B portion.

[Explanation of symbols]

 A: Driver's seat unit B: Drive device 1: Airframe 2: Rubber crawler 3: Mowing unit 4: Bearing pin 5: Movable main pillar 6: Footrest plate 8: Tilt sensor-

Claims (1)

[Scope of utility model registration request] 1. A mower having a configuration in which a mowing unit is attached to a front portion of a machine body provided with a rubber crawler, and a driver's seat unit for a driver to get in a standing posture is attached to a rear portion of the machine body. In the driver's seat unit, a footrest plate is horizontally attached to the lower end, and a portion near the upper end of the movable main column is rotatably supported by the machine body via a support pin, and a movable main column of the movable main column. The tilt sensor, which is mounted in a proper position, includes an inclination sensor for detecting the inclination of the movable main pillar, and a drive device for rotating the movable main pillar around the bearing pin. A lawn mower, characterized in that the inclination of the movable main pillar is detected, and the drive signal is activated by the detection signal to keep the movable main pillar vertically.