JPH0919214A - Mobile type mower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile type mower capable of regulating the height of the tip of a handle by turning and fixing the handle at a position for facilitating operations by an operator. SOLUTION: This mobile type mower is obtained by installing a travel wheel in a machine body 2 loaded with an engine for travel thereon, protrusively providing handles 4 at the rear of a machine body 2 and additionally equipped with a hair clipper type mowing device for cutting grass on the top surface and a slope of a ridge, etc., in front of the machine body 2. Furthermore, the mobile type mower is provided with a pivot shaft 6 standing from a handle installing part of the machine body 2 and a handle holding unit 7 holding a base part 4' of the handles 4 fitted into the pivot shaft 6 and the handles 4 are installed so as to enable the turning. A turning and fixing mechanism 8 for fixing the handles 4 at a desired angle is provided in the handle installing part of the machine body 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled mower equipped with a clipper-type mower.

[0002]

2. Description of the Related Art Since the ridge surface is extremely uneven and has a mountain shape, the traveling wheels are affected by any self-propelled mower, The machine is rocked horizontally (rolling) and rocked vertically (pitching).

Since this effect is easily affected to a certain extent by a wide wheel, the left and right running wheels are made up of a narrow two-wheeled vehicle, one of the running wheels is grounded, and the other wheel is floated by the steering wheel. In order to balance the airframe by balancing the airframe by self-propelled and reducing the swing as much as possible, and by providing the airframe with a rotation fixing mechanism that adjusts and fixes the inclination angle of the mowing blade to a desired angle. These problems were solved by carrying out mowing work by aligning the mowing blade of the machine with the mowing surface of the ridge when the machine was tilted while traveling, but in this case, especially in the case of mowing work on inclined surfaces, the same as above. When one of the traveling wheels is grounded on the mountain side and the valley side wheel is floated and the vehicle is self-propelled while balancing the aircraft with the steering wheel, the left and right angles of the steering wheel and the height can be easily adjusted. It has become an essential condition in order to perform a stable work in a bad place Ashimoto. The inventor turns the tip of the handle of the self-propelled mower on the road above the ridges and slopes where the operator can operate in a stable posture, and holds this tip at a desired height. The present invention has been completed with a focus on operating the operation portion of the machine body provided at the tip end on the upper surface of the ridge or the road to mow the slope of the ridge.

[0004]

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

A traveling wheel 3 is provided on a machine body 2 equipped with a traveling engine 1, a handle 4 is provided on the rear side of the machine body 2, and a clipper-type mowing is provided on the front part of the machine body 2 for mowing grasses such as ridges or slopes. A self-propelled mower having a device 5 attached thereto, wherein a handle attachment part 2 ′ of the machine body 2 is provided with a pivot shaft 6 upright, and the pivot shaft 6 holds a base 4 ′ of the handle 4 A self-propelled mower characterized in that a handle 4 is rotatably provided by fitting 7 and a swing fixing mechanism 8 for fixing the handle 4 at a desired angle is provided in a handle attachment portion 2 ′ of the machine body 2. It is related.

Further, the handle holder 7 is provided with a pivotally attached portion 7'sideways, and the base portion 4'of the handle 4 is fitted and pivotally attached to the pivotally attached portion 7'to enable the tip of the handle 4 to be rotated up and down. 2. A self-propelled mower according to claim 1, further comprising a holding mechanism 9 provided at a base portion 4 ′ of the handle 4, the holding mechanism 9 being provided for holding the tip end of the handle 4 at a desired height. It is a thing.

[0007]

Operation: A self-propelled mower equipped with a clipper-type mower 5 is used for self-propelled mowing work on the upper surface and slopes such as ridges.

At this time, when it is determined that the work posture is not good because the worker's feet are poor and the grass cutting work cannot be continued in a stable work posture, the turning fixing mechanism 7 of the machine body 2 is released and the steering wheel 4 is released. The tip of each is fixed by turning to a position where the operator can easily operate the machine body 2, and the self-propelled machine while operating the machine body 2 in a stable posture.
Mowing work.

When performing a mowing operation while self-propelled on an upper surface or a slope such as a ridge with a self-propelled mower equipped with a clipper-type mowing device 5, the worker's feet are poor and the work posture becomes poor and stable. When it is determined that the mowing work cannot be continued in the working posture, the swing fixing mechanism 7 of the machine body 2 is released and the tip of the handle 4 is moved to a position where the operator can easily operate the machine body 2 in the same manner as above. After turning and fixing, the holding mechanism 9 is released and the tip of the handle 4 is pushed by the operator to the body 2
The clipper-type mower 5
Mowing work.

Further, when carrying out a normal mowing operation, the turning angle of the handle 4 and the height of the tip of the handle 4 are returned to their original positions by the turning fixing mechanism 8 and the holding mechanism 9 so that the operator can easily work at such a position and height. Adjust to mow and carry out mowing work.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The attached drawings show an example of a preferred embodiment of the present invention, in which a vehicle body 2 equipped with a traveling engine 1 is provided with traveling wheels 3 and a steering wheel 4 is provided behind the vehicle body 2 to project the vehicle body. A self-propelled mower equipped with a clipper-type mowing device 5 for mowing grass on upper surfaces such as ridges and slopes in the front part of 2, in which a pivot shaft 6 is erected on a handle mounting portion 2'of the machine body 2, A handle holding body 7 holding a base portion 4'of the handle 4 is fitted on the pivot shaft 6 so that the handle 4 can be turned, and a turning fixing mechanism 8 for fixing the handle 4 at a desired angle is provided in the handle of the machine body 2. Provided on the mounting portion 2 '.

Further, a pivotally attached portion 7'is laterally provided on the handle holding body 7, and a base portion 4'of the handle 4 is fitted and pivotally attached to the pivotally attached portion 7'to make the tip of the handle 4 vertically rotatable. A holding mechanism 9 is provided on the base 4 ′ of the handle 4 to hold the handle 4 up and down at a desired height.

More specifically, a handle mounting portion 2'having a hat-shaped cross section when viewed from the front is provided on the machine body 2, and a pivot shaft 6 is provided upright on the upper front surface of the handle mounting portion 2 '. A handle holder 7 holding the base 4 ′ of the handle 4 is fitted on the pivot shaft 6.

The handle holder 7 shown in the drawing has a bearing cylinder 12 whose inner diameter is fitted to the pivot shaft 6 and which is erected on the base of a mounting body 11 whose cross section is an angle with respect to the left-right direction when viewed from the front. , The bottom plate 11 'of the mounting body 11 when viewed from above, the bearing cylinder 1
Formed in the shape of a quarter disk centered on the axis of 2, and a plurality (five in the figure) on the circumference of this bottom plate 11 'toward the axis.
A radial pivot cutout fixing groove 13 is formed, and a cylindrical pivoting portion 7'having a pivoting hole in the left-right direction is inserted into the vertical side plate 11 'of the mounting body 11 in front of and welded to the handle holding body. Form 7.

Two handle fastening pieces 14 and 14 having a two-piece construction are projected from the base portion 4'of the handle 4 toward the front, and the left and right handle fastening pieces 14 and 14 are fitted to the pivotally attached portion 7 '. Then, the handle 4 is pivotally mounted by a pivoting bolt 15 so that the tip of the handle 4 is vertically rotatable. Reference numeral 16 in the drawing is a washer.

Next, the turning fixing mechanism 8 will be described in detail.

From the rear end edge of the ceiling plate of the handle mounting portion 2 ', a locking cut groove 17 is formed forward, and the locking cut groove is formed.
Pivot holes are formed through the left and right side plates of the mounting body 11 below the mounting body 17.

A shaft mounting pin 18 is laid over the left and right shaft mounting holes, and a base portion of a locking claw body 19 is axially mounted on the shaft mounting pin 18, and the locking portion 19 is located above the base portion of the locking claw body 19. ', The handle portion 19 "is provided to project rearward.

Reference numeral 20 is a locking portion with the shaft mounting pin 18 as a shaft.
An urging spring that urges 19 'clockwise.

Since the swivel fixing mechanism 8 of the embodiment is constructed as described above, in the normal state, the locking claw body 19 is pressed by the biasing spring 20 so that the tip of the locking portion 19 'is guided by the locking cut groove 17. The handle holder 7 projects upward and fits into the notch fixing groove 13.
Is fixed to the handle mounting portion 2 ′, so that the handle 4 is held by the machine body 2. When the handle portion 19 ″ of the locking claw 19 is pushed downward to separate the locking portion 19 ′ from the cut groove 13 and the cut groove 17, the handle holder 7 rotates around the pivot shaft 6. The handle 4 is turned to a desired angle so that the notch fixing groove 13 having a desired angle is aligned with the engaging notch groove 17, and the engaging portion 19 'is urged by the urging force of the urging spring 20. When the locking cut groove 17 and the cut fixing groove 13 are fitted and locked in the grooves, the turning angle of the handle 4 is fixed at the position of the angle.

Next, the holding mechanism 9 will be described in detail.

Vertical side plate of the mounting body 11 of the handle holder 7
11 "is formed in the shape of a quarter disk centering on the axis of the pivoting portion 7 ', and the vertical side plate 11" is formed on the same arc centering on the axis of the pivoting portion 7'as desired. A plurality of locking holes 22 (five in the figure) are drilled at an angle. A female screw portion is screwed on the handle fastening piece 14 on the right side of the facing position of the locking hole 22, and the holding body 23 is screwed onto the female screw portion, and the holding nut 23 is put in a rotation stop state by the stop nut 24.
Is fixed to the handle fixing piece 14, a projecting / retracting hole 23 'is provided in the tip end surface of the holding body 23, and a counterbore portion is formed in the projecting / retracting hole 23' through a step. The locking pin 25 is slidably inserted into the holding body 23, the locking pin 25 is provided with a step 25 ', and the engaging projection 25 "at the tip thereof is projected from the projecting and retracting hole 23' and locked. Locking pin provided in the hole 22 to fit in the hole
The compression bar 27 is fitted on the 25, and it is fixed from the other end of the locking pin 25.
28 is inserted and the fixing collar 28 is press-fitted and fixed to the base of the counterbore portion of the holding body 23, and the engaging projection 25 ″ of the fixing pin 25 is provided so as to be constantly urged into the locking hole 22. The grip 26 is screwed to the other end of the wearing pin 25 to form the holding mechanism 9.

Since the holding mechanism 9 of this embodiment is constructed as described above, when the grip 26 is grasped and pulled to the right, the locking pin 25
Moves to the right against the biasing force of the compression spring 27, and the locking pin
The engaging projection 25 ″ at the tip of 25 is the locking hole 22 of the handle holder 7.
Since they are further separated from each other, the holding of the handle holder 7 and the base portion 4'of the handle 4 is released, and the tip of the handle 4 is vertically rotatable about the pivotal portion 7'as an axis. When the grip 26 is released at that position, the engaging projection 25 ″ of the locking pin 25 is fitted into the locking hole 22 by the restoring force of the compression spring 27, and the handle holding body 7 is attached. The base of the handle 4 is locked and fixed, and the height of the tip of the handle 4 is held at that position.

Since the embodiment of the present invention is constructed as described above, a self-propelled mower equipped with a clipper-type mower 5 is used for self-propelled operation on the upper surface and slopes such as ridges.

At this time, when it is determined that the work posture is not good because the worker's feet are poor and the grass cutting work cannot be maintained in a stable work posture, first, the grip portion 19 "of the turning and fixing mechanism 7 is pushed downward. Then, the locking portion 19 'is separated from the locking cut groove 17 and the cut fixing groove 13, and the tip of the handle 4 is pivoted to an angle position where the operator can easily operate the machine body 2, and the cut fixing groove 13 is locked. Align with the notch 17 and lock the pawl at that position
The engaging portion 19 'of 19 is provided with the engaging cut groove 17, the cut fixing groove 13
The handle holder 7 is fixed to the handle mounting portion 2'by fitting it in the groove of the handlebar, and the operator holds the tip of the handlebar 4 to let the machine body 2 self-propagate in a stable posture, and the clipper type mower 5 cuts the grass. Do the work.

When the holding mechanism 9 is provided on the machine body 2, the turning fixing mechanism 8 is used to turn and fix the handle 4 at a desired angle, and then the grip 26 is pulled to lock the pin 25.
The engaging projection 25 "of the handle 4 is separated from the locking hole 22
After adjusting the tip of the handle to a desired height for easy operation of the mowing work, the engaging protrusion 25 "is fitted into the locking hole 22 at that position to hold the height of the tip of the handle 4. While self-propelled, mowing work is carried out with a clipper-type mowing device.

Particularly, when performing mowing work on the slope of a ridge with a self-propelled mower equipped with a conventional hair clipper type mowing device 5, one wheel of the normal traveling wheels 3 is grounded on the mountain side and the other valley is grounded. The wheel on the side was floated, and the wheel 4 was self-propelled while balancing with the handle 4 and the hair clipper blade was used to mow the ridge slope according to the slope slope of the ridge. This work is done because the worker's feet are on the slope. In comparison with the disadvantage that the posture becomes unstable and tired easily, and the efficiency of the grass cutting is poor, the self-propelled mower of the present invention releases the turning fixing mechanism 8 and handles it in such a case. Turn the tip of 4 on the road on the upper surface of the ridge or the slope and fix it at that position, and let the wheel on the mountain side of the traveling wheel 3 touch the slope and float the wheel on the valley side, and install it on the tip of the handle 4. The operator operates the operation part of the body 2 from above the ridges or the road. The mower can be self-propelled and the handlebars 4 are used to balance the machine body 2 and the hair clipper blades that match the slope of the ridge slope can be used to mow the ridge slope. It is possible to carry out mowing work with a good finished surface on the rear slope.

When the holding mechanism 9 is provided on the machine body 2, the tip of the handle 4 is turned by the turning holding mechanism 8 on the road above the ridges or slopes and fixed at that position by the turning holding mechanism 8 as described above. The height of the tip of the handle 4 is adjusted by the holding mechanism 9, and while the operator balances the machine body 2 with the handle 4 from the upper surface of the ridge or on the road, the clipper blade that matches the slope of the ridge slope can be used to mow the ridge slope. Since it can be carried out, the operating posture of the operator is more stable, and the grass cutting work can be carried out more efficiently.

In the figure, reference numeral 30 is a cushioning rubber interposed between the machine body 2 and the handle mounting portion 2'to reduce the vibration of the handle 4, 31 and 32 are the pivot shaft 6 and the handle operating portion 7 respectively. A washer and a bolt that are fastened in a pivoted state, 33 is an operation unit that operates the machine body 2, 34 is a rotary fixing mechanism that adjusts and fixes the inclination angle of the hair clipper blade to a desired angle, and 35 is the cut grass on the right side of the machine body. It is a belt-shaped discharging mechanism that discharges to the rear of the side surface.

[0030]

Since the present invention is constructed as described above, when carrying out a mowing operation with a self-propelled mower, the feet of the operator operating the machine are not good and the posture of the operator is bad, so that stable work can be performed. Even if it is not possible to continue, the swivel fixing mechanism swivels and fixes the tip of the handle to a position where the operator can easily operate the machine.
Since the machine can be steered in a stable work posture to carry out mowing work, the work efficiency is significantly improved compared to the conventional machine, and the self-propelled mowing machine has a good finished surface.

When a holding mechanism is provided on the machine body,
Similar to the above, since the tip of the handle is pivoted and fixed to a position where the operator can easily operate the machine by the swivel fixing mechanism, the tip of the handle can be adjusted and held at a height that is easy for the operator to operate. , Because the operator can operate the machine in a stable posture, it will not get tired and the work efficiency will be significantly improved compared to the conventional machine, and it will be a self-propelled mower that has excellent practicality with a good mowing finish. .

[Brief description of the drawings]

FIG. 1 is a perspective view of the present embodiment.

FIG. 2 is a side view in which a part of the main part of the present embodiment is cut away.

FIG. 3 is a plan view in which a part of a main part of this embodiment is cut away.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running engine 2 Airframe 2'Handle mounting part 3 Running wheel 4 Handle 4'Base 5 Hair clipper type mowing device 6 Pivot shaft 7 Handle holder 7'Pivot part 8 Pivot fixing mechanism 9 Holding mechanism

[Procedure amendment]

[Submission date] July 17, 1995

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0001

[Correction method] Change

[Correction contents]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled mower equipped with a clipper-type mower.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the present invention (how to implement the invention), which is considered to be the best, will be briefly described with reference to the drawings, showing its operational effects. A self-propelled mower equipped with a clipper-type mower 5 is used for self-propelled work on the upper surface and slopes such as ridges.

Claims (2)

[Claims] 1. A vehicle equipped with a traveling engine is provided with traveling wheels, a handle is provided at the rear of the vehicle, and a clipper-type mowing device for cutting grass such as ridges or slopes is attached to the front of the vehicle. A self-propelled mower, in which a pivot shaft is erected on the handle mounting portion of the machine body, and a handle holder that holds the base of the handle is fitted on the pivot shaft so that the handle can be turned. A self-propelled mower, wherein a turning fixing mechanism for fixing the handle at a desired angle is provided on a handle attaching portion of the machine body. 2. A handle holder is provided with a pivotally attached portion laterally, and a base of the handle is fitted and pivotally attached to the pivotally attached portion so that the tip of the handle can be rotated up and down. The self-propelled mower according to claim 1, wherein a holding mechanism for holding the movement at a desired height is provided at the base of the handle.