JP3844910B2 - Mower - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a walk-type mower that performs mowing work such as hoe or farm road, and more particularly to a rotation mechanism of an operation handle of a mower suitable for mowing an inclined surface.
[0002]
[Prior art]
Conventionally, various types of walking mowers have been proposed for mowing work such as hoe and farm roads. For example, as disclosed in JP-A-10-150824 and JP-A-10-210838, in a conventional walking type mower, an engine and a handle are arranged above a traveling wheel, and the aircraft is steered. A handle provided for operation is configured to be rotatable and adjustable only in the left-right direction and the up-down direction.
[0003]
[Problems to be solved by the invention]
However, in the prior art, in order to turn the mower at the end of the work process, the operator needs to rotate the mower while turning the worker himself while holding the handle and turn it in the traveling direction. In particular, when performing mowing work on sloped parts such as the slope of a fence, the operator must perform a turning operation by changing the angle of the handle on the inclined surface. It is difficult to carry out, and this leads to a decrease in work efficiency.
[0004]
[Means for Solving the Problems]
The above is the problem to be solved by the present invention. Next, means for solving the problem will be described.
That is, in a lawn mower in which a handle is attached to a handle base of an airframe body composed of an engine, a cutting part, and a pair of left and right traveling wheels so that the handle can be turned in the left and right and up and down directions, the handle base is turned in the left and right and up and down directions. A handle rotation lock mechanism is provided that can be locked, and the handle rotation lock mechanism is connected to a handle rotation lever disposed in an operation portion at the end of the handle via a connector so that it can be locked / released. A side clutch that connects and disconnects the driving of the left and right traveling wheels is connected to a side clutch lever provided in the operation portion via a connecting tool, and the connecting tool of the side clutch lever and the connecting tool of the handle rotation lever are connected. An engaging member is arranged, and the handle rotation lock mechanism is released in conjunction with the cutting operation of either the left or right side clutch lever.
Further, the engagement member can be disengaged.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the accompanying drawings.
1 is an overall side view of the mower, FIG. 2 is a plan view of the same, FIG. 3 is a front view of a cutting part, FIG. 4 is a plan view of a handle base that allows the handle to be turned up and down, left and right, and FIG. 6 is a front view, FIG. 7 is a side sectional view of the handle float fixing portion and the rod fixing portion, FIG. 8 is a front sectional view of the rod fixing portion, and FIG. 9 is an enlarged side sectional view of the rod fixing portion in a locked state. 10 is a side cross-sectional view in the released state, FIG. 11 is a side cross-sectional view of the handle extendable lever mounting portion, FIG. 12 is a plan view, FIG. 13 is a front view of the handle extendable lever, and FIG. 15 is a side view, FIG. 16 is a plan view with the cover removed, and FIG. 17 is a side sectional view.
[0006]
First, the overall schematic configuration of the mower 1 will be described with reference to FIGS.
The main body of the mower 1 has an engine 11 disposed on a mission case 10, and the mission case 10 extends to the left and right sides. The cutting blade drive shafts 12 and 12 protrude downward from the middle of the left and right sides of the transmission case 10 to fix the cutting blades 13 and 13, respectively, and the cutting blades 13 and 13 are covered with a cutting blade cover 14 above and to the sides. The cutting part is configured.
[0007]
Pipe-shaped axle cases 15 and 15 are formed on both sides of the transmission case 10, and the upper portions of the traveling cases 16 and 16 are fixed to the outside of the axle cases 15 and 15. It protrudes downward. Left and right axles are horizontally mounted on the lower part of the traveling cases 16 and 16 so that power can be transmitted to the axles via a chain or the like, and pipe-shaped wheels 17L and 17R are fixedly mounted on the axles, respectively. A large number of pin-shaped lugs project in the radial direction on the wheels 17L and 17R.
In this way, the output shaft of the engine 11 is inserted into the transmission case 10 and is shifted in the transmission case 10 to drive the cutting blades 13 and 13 and the wheels 17L and 17R. A side clutch is provided as a steering means in the case 10 so that power can be connected and disconnected by operating side clutch levers 4L and 4R described later.
[0008]
Further, tail wheel locking mechanisms 20 and 20 are provided at the left and right front portions of the transmission case 10, and the arms 21 and 21 protrude forward from the tail wheel locking mechanism 20 so as to be rotatable left and right. Caster-type tail wheels 22 and 22 are attached to the front end. Thus, the arm 21 with the tail wheel 22 is rotated forward and locked during work, and the arm 21 is rotated rearward during movement to facilitate movement.
[0009]
A handle base 23 protrudes rearward from the left and right center of the mission case 10, and the handle 2 that can be extended and contracted is attached to the handle base 23 so as to be vertically rotatable and horizontally rotatable. An operation portion 3 is provided at the rear portion of the handle 2, and operation levers such as side clutch levers 4L and 4R, a handle vertical rotation lever 5 and a handle telescopic lever 6 are arranged on the operation portion 3.
[0010]
Next, the configuration of the handle 2 will be described in detail with reference to FIGS.
4 to 6, the structure of the handle rotation lock mechanism 9 provided on the handle attachment base will be described.
A handle base 31 is fixed on the handle base 23, and the handle base 31 is formed of a flat plate, and a concave portion 31a, 31a,... The stoppers 31b and 31b are provided. A support pipe 32 serving as a left / right pivot point of the handle 2 is erected on the center portion of the handle base 31, and a pivot pipe 33 is rotatably fitted on the support pipe 32.
[0011]
Front portions of mounting plates 34, 34 are fixed on both sides of the pivot pipe 33, and a vertical rotation support pipe 35 is installed horizontally at the front end of the mounting plates 34, 34 in the horizontal direction, the vertical rotation support pipe. A fulcrum shaft 36 is rotatably supported by 35, and the front ends of the handle mounting frames 37 and 37 are fixed on both sides of the fulcrum shaft 36.
[0012]
The mounting plates 34, 34 extend upward and rearward, and a storage pipe 40 is fixed between the rear portions of the mounting plates 34, 34. A stopper pin 41 is slidably stored in the storage pipe 40. Yes. The rear end of the stopper pin 41 has a pointed shape, and on the other hand, an arc-shaped stopper plate 42 centering on the fulcrum shaft 36 in a side view is fixed between the middle portions of the handle mounting frames 37 and 37, Pin holes 42a, 42a,... Are opened on the stopper plate 42 at predetermined intervals in the vertical direction, and the rear end of the stopper pin 41 is inserted into the pin hole 42a so that the position can be fixed.
[0013]
The rear end of the sliding rod 43 is fixed to the front axial center of the stopper pin 41. A spring 44 is fitted on the sliding rod 43 so that the stopper pin 41 is inserted into the pin hole 42a. The nuts 48 and 48 are screwed and fixed to the front end of the sliding rod 43, and the upper end of the rotating arm 45 is locked to the rear side of the nut 48. The upper and lower halfway part of the pivot arm 45 is pivotally supported by a pivot shaft 46 horizontally mounted between the mounting plates 34 and 34, and a toggle spring 47 is externally fitted to the boss part of the pivot arm 45. The stopper pin 41 pushes the rotating arm 45 in the direction of the pin hole 42a, and a later-described convex portion 45a is urged so as to fit into the concave portion 31a.
[0014]
A projecting portion 45a is projected forward from the lower end of the rotating arm 45 so as to be fitted into the recessed portion 31a, and an engaging hole 45b is provided at the lower end of the rotating arm 45 so as to rotate up and down. One end of the moving wire 49 can be engaged. The other end of the vertical rotation wire 49 is connected to a handle vertical rotation lever 5 provided at a rear portion of the handle 2 described later via a rod or the like.
[0015]
With this configuration, by pulling the handle rotation lever 5, the vertical rotation wire 49 is pulled, the upper end of the rotation arm 45 pulls the sliding rod 43 forward, and the engagement between the stopper pin 41 and the pin hole 42a. The engagement is released, and the handle 2 can be turned up and down. By further pulling, the engagement between the convex portion 45a and the concave portion 31a is released, and the handle 2 can be turned left and right. Then, by returning the handle rotation lever 5 to the original position, the convex portion 45a and the concave portion 31a, and the stopper pin 41 and the pin hole 42a are engaged to lock the horizontal rotation and vertical rotation of the handle 2. To do.
[0016]
Next, the configuration of the frame portion of the handle 2 will be described in detail with reference to FIGS.
The handle frame 30 is divided into a lower handle frame 51 and an upper handle frame 52, and the lower handle frame 51 and the upper handle frame 52 are configured in a pipe shape (in this embodiment, a square pipe). The lower handle frame 51 is configured to be slightly larger than the lower handle frame 51, and the lower handle frame 51 is inserted into the upper handle frame 52 so as to be extendable. A roller or the like is interposed between the two so that expansion and contraction can be performed smoothly. The front end of the lower handle frame 51 is fixed to the handle mounting frame 37, and the operation unit 3 is disposed at the rear end of the upper handle frame 52.
[0017]
As shown in FIG. 7, a handle frame fixing portion 50 is disposed between the lower handle frame 51 and the upper handle frame 52. In this embodiment, the attachment pipe 53 is suspended from the lower surface on the front end side of the upper handle frame 52. The pressing pin 54 is inserted into the mounting pipe 53 and passes through the mounting pipe 53 and the upper handle frame 52, and the pressing pin 54 is biased by the spring 55 so as to press against the outer surface of the lower handle frame 51. . However, the tip of the pressing pin 54 can be inserted into a pin hole provided at a predetermined interval on the outer periphery of the lower handle frame 51 and locked.
[0018]
A locking pin 54 a protrudes from the side surface of the pressing pin 54, and the locking pin 54 a protrudes from a long hole provided in the attachment pipe 53 and is engaged with a rotating plate 56 pivotally supported on the attachment pipe 53 side surface. It has been stopped. One end of a handle expansion / contraction wire (or rod) 57 is locked to one end of the rotating plate 56, and the other end of the handle expansion / contraction wire 57 is linked to a handle expansion / contraction lever 6 provided in the operation unit 3.
[0019]
A rod fixing portion 60 is provided in the lower handle frame 51. That is, the left and right side clutch lower rods 61L and 61R, the handle vertical pivot lower rod 62, and the accelerator lower rod 63 are accommodated in the lower handle frame 51. The side clutch lower rods 61L and 61R and the handle vertical pivot lower rod 62 are accommodated. 4 and 5, the front end of the accelerator lower rod 63 is connected to the side clutch wires 64L and 64R, the handle vertical turning wire 49, and the accelerator wire 65, respectively, by springs 66, 66. The lower rods are biased so as to be pulled toward the main body, and the length of each lower rod is slightly shorter than the lower handle frame 51.
[0020]
In order to make the lower handle frame 51 extendable and retractable in the upper handle frame 52, the left and right side clutch lower rods 61L and 61R, the handle vertical turning lower rod 62, and the accelerator lower rod 63 are placed on the side clutch upper rod. 71L / 71R, handle up / down pivot upper rod 72, accelerator upper rod 73, one end of the guide plate 67/67/67/67 slidable or integrally fixed rod fixing portion 60 is provided. As shown in FIGS. 7, 8, and 9, the rod fixing portion 60 operates in the same manner on each rod. Therefore, the rod fixing portion 60 is a rod fixing portion 60 provided on the handle 62 in a vertically rotating lower rod 62. The configuration of the guide plate 67 and the regulation plate 69 will be described. The handle vertically rotating lower rod 62 is inserted into sliding holes 67a and 67a opened on the upper and lower surfaces of a guide plate 67 configured in a “U” shape in side view . A locking hole 67 b is opened on the side surface of the guide plate 67.
[0021]
On the other hand, a restriction hole 69a is opened at the center of the horizontal portion of the restriction plate 69 configured in a substantially L shape, a locking projection 69b is provided at one end of the horizontal portion of the restriction plate 69, and the vertical portion is positioned on the lower handle frame. 51 extends downward from the center side.
Then, the horizontal portion of the restricting plate 69 is inserted between the upper and lower plates of the U-shaped portion of the guide plate 67, the handle lower-rotating lower rod 62 is inserted into the restricting hole 69a, and the engaging projection is inserted into the engaging hole 67b. The portion 69b is inserted and locked.
Further, a spring 70 is externally fitted between the restricting plate 69 and the guide plate 67 on the handle vertically rotating lower rod 62 and urged to lift the restricting plate 69. Due to this urging force, the regulating plate 69 is tilted and is squeezed between the regulating hole 69a and the handle vertically rotating lower rod 62 (causes being caught), so that the space between the handle vertically rotating lower rod 62 and the guide plate 67 is increased. It is locked by the restriction plate 69 .
As a result, the handle vertical rotation lower rod 62 and the handle vertical rotation upper rod 72 are fixed and integrated.
[0022]
Further, one end of a handle upper / lower pivot upper rod 72 is fixed to the guide plate 67, and side clutch upper rods 71L and 71R and an accelerator upper rod 73 are fixed to the other guide plates 67, 67 and 67, respectively. The fixing position can be finely adjusted by lock nuts 74 and 74. The other ends of the side clutch upper rods 71L and 71R, the handle upper and lower pivot upper rod 72, and the accelerator upper rod 73 are extended to the rear of the upper handle frame 52, respectively, and the side clutch levers 4L and 4R, the handle vertical pivot lever 5 and the like. It is connected to the accelerator grip 7. Reference numeral 68 denotes a partition plate.
[0023]
A release rod 75 is disposed at the center of the lower handle frame 51 and the upper handle frame 52, a contact plate 76 is fixed to the front end of the release rod 75, and the other end of the release rod 75 is connected to the handle telescopic lever 6. The contact plate 76 is connected so as to come into contact with the lower end of the restriction plate 69 by pulling the release rod 75. That is, when the contact plate 76 contacts the lower end of the restriction plate 69, as shown in FIG. 10, the restriction plate 69 rotates about the locking hole 67b, and the restriction hole 69a of the restriction plate 69 becomes a rod. The rod fixing portion 60 becomes slidable on each lower rod.
[0024]
Therefore, the handle 2 is telescopically movable by integrally moving the upper handle frame 52 and the side clutch upper rods 71L and 71R, the accelerator upper rod 73 and the guide plates 67, 67. On the other hand, when the handle telescopic lever 6 is returned to the locked state, a koji is generated between the restricting hole 69a and each lower rod and the sliding becomes impossible.
[0025]
As shown in FIG. 11, the other end of the release rod 75, that is, the rear end portion, is fixed to an attachment stay 77, the attachment stay 77 is fixed to an arm pin 79, and the arm pin 79 is a rear portion of the upper handle frame 52. A mounting stay 80 is fixed to the lower surface of the arm pin 79 so as to be slidable. The mounting stay 80 is L-shaped in a side view, and the handle telescopic wire 57 is attached to the front end of the mounting stay 80. The screw rod portion 57a at the rear end is inserted, the contact position with the mounting stay 80 can be adjusted by the nuts 59 and 59, and the handle telescopic lever 6 is pivotally supported so as to be rotatable in the left-right direction.
[0026]
As shown in FIGS. 12 and 13, the handle telescopic lever 6 is formed in a reverse Ω shape in front view at the front portion of the operation unit 3, grips 6 a and 6 a are provided on the left and right sides, and a boss 6 b is provided in the center on the left and right. The arm pin 79 is pivotally supported.
With this configuration, even if the grip 6a on the left and right sides is gripped and pulled, the handle telescopic lever 6 only rotates about the arm pin 79, and cannot be unlocked. Cannot be stretched. However, by grasping and pulling the grips 6a and 6a on both the left and right sides, the arm pin 79 is pulled rearward, the release rod 75 is pulled, and the lock is released as shown in FIG. The handle frame fixing part 50 is released by pulling, and the handle frame 30 can be expanded and contracted to adjust the length.
[0027]
Next, the configuration of the operation unit 3 will be described.
14 to 17, the left and right center front portions of a pipe handle 81 having a substantially elliptical shape are fixed to the rear end of the upper handle frame 52, and the base portions of the side clutch levers 4L and 4R are pivoted on the pipe handle 81. The grip portions of the side clutch levers 4L and 4R are arranged inside the pipe handle 81. Side clutch upper rods 71L and 71R are connected to the side clutch levers 4L and 4R, respectively, and locking pins 71La and 71Ra are respectively fixed to the rear portions of the side clutch upper rods 71L and 71R in the left-right direction.
[0028]
Then, mounting stays 82 and 82 project downward from the rear lower portion of the upper handle frame 52, and a support shaft 83 is pivotally supported by the mounting stays 82 and 82. The base is fixed and protrudes upward from between the left and right side clutch upper rods 71L and 71R. The handle up / down turning lever 5 is composed of a base lever 5a configured in an L shape in side view, and a pipe-shaped upper lever 5b fitted to the upper portion of the base lever 5a so as to be slidable up and down. The upper lever 5b can be held at a position raised upward and a position lowered downward by a holding mechanism (not shown) with respect to the base lever 5a.
[0029]
The upper end of the upper lever 5b is a grip 5c, and the rear surface of the upper lever 5b is provided on the rear surface of the upper lever 5b so as to be engageable with a locking pin 72a fixed to the rear end of the handle vertical rotation upper rod 72. The joint plate 84 is fixed. A locking claw 85 configured as an L-shape in a side view as an engaging member protrudes from the lower rear surface of the upper lever 5b, and the locking claw 85 is arranged to be able to engage with the locking pins 71La and 71Ra. Has been.
[0030]
With this configuration, when the handle vertical rotation lever 5 is rotated rearward with the upper lever 5b raised, the engagement plate 84 is engaged with the locking pin 72a and the handle vertical rotation is increased. By pulling the rod 72 and the handle vertically rotating lower rod 62, and further pulling the stopper pin 41 via the vertically rotating wire 49 to release the engagement with the stopper plate 42, the handle 2 can be rotated vertically. The fitting convex part 45a is disengaged from the concave part 31a and can be rotated left and right.
[0031]
Further, when the side clutch lever 4L (or 4R) is gripped and rotated to turn left and right, as shown in FIG. 18, the side clutch upper rod 71L (or 71R) and the side clutch lower rod 61L (61R) are interposed. The side clutch wire 64L (64R) is pulled, the driving force to the wheel 17L (17R) is cut off, and the vehicle turns. At the same time, the locking pins 71La and 71Ra provided on the side clutch upper rod 71L (or 71R) engage with the locking claws 85 to rotate the handle up / down rotation lever 5 backward to rotate the handle. The lock mechanism 9 is unlocked, and the handle 2 can be turned up and down and left and right.
[0032]
Such turning is effective for turning on an inclined ground as shown in FIG. 20, and only the traveling wheel 17 on one side is driven only by grasping one side clutch lever 4 while being located on a flat portion. The machine body turns on the spot, and at the same time, the handle 2 can be turned up and down and left and right. The operator does not have to turn together with the machine body and adjusts the vertical angle of the handle. You can turn in a stable position. When the side clutch lever 4 is released after turning, the handle rotation lock mechanism 9 is locked, and the handle 2 can be supported and work can be performed.
[0033]
Further, when the upper lever 5b is pushed downward during a straight operation or during movement, the locking claw 85 is positioned below the locking pins 71La and 71Ra as shown in FIG. Even if one of 4L and 4R is rotated, the locking claw 85 and the locking pins 71La and 71Ra are not engaged, and the vertical and horizontal rotation of the handle 2 remains locked and only one side of the traveling wheel is driven. And can turn left and right. This is effective when correcting the left and right traveling directions.
[0034]
An accelerator grip 7 is provided on the rear horizontal portion of the pipe handle 81. The accelerator grip 7 is connected to the accelerator upper rod 73 via a wire or the like. By rotating the accelerator grip 7, It is connected to the throttle of the engine 11 through the rod 73, the accelerator lower rod 63, and the accelerator wire 65 so that the rotational speed of the engine 11 can be changed.
The operation part 3 at the rear part of the upper handle frame 52 and the left and right center part of the pipe handle 81 is covered with a cover 86, and an engine stop switch 87 is provided on the rear part of the cover 86.
[0035]
In the above-described configuration, when mowing is performed, the engine 11 is started, the handle telescopic levers 6L and 6R are gripped to unlock the rod fixing portion 60, and the length of the handle frame 30 is adjusted. Then, release the hand from the handle telescopic levers 6L and 6R to lock the rod fixing portion 60. Then, the handle vertical rotation lever 5 is rotated to adjust the vertical height and the horizontal rotation angle of the handle 2. Then, if the accelerator grip 7 is rotated and the engine speed is increased and adjusted, the cutting blade 13 and the wheels 17L and 17R are driven to perform the mowing work.
[0036]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained. That is, in a mower having a handle attached to a handle base of an airframe body configured of an engine, a cutting part, and a pair of left and right traveling wheels so that the handle can be rotated in the left and right and up and down directions, And a handle rotation lock mechanism capable of locking the rotation in the vertical direction, and the handle rotation lock mechanism is connected to a handle rotation lever disposed on the operation portion of the handle end via a connector and locked. -A side clutch that connects and disconnects the driving of the left and right traveling wheels is connected to a side clutch lever provided in the operation unit via a connecting tool, and the side clutch lever connecting tool and the handle rotating lever are connected to each other. An engaging member is arranged between the connecting tool and the handle rotation lock mechanism is released in conjunction with the cutting operation of either the left or right side clutch lever. Therefore, if the side clutch lever is operated when turning the aircraft, the handle can turn left and right and up and down, and only the aircraft turns in the left and right operation direction with the traveling wheels. Compared with the switch operation, it can be turned more easily and the moving distance can be shortened.
[0037]
When the side clutch lever is released after turning, the handle becomes fixed with respect to the fuselage, and the turning can be easily performed with only one hand operation without the operation of the handle turning lever, thereby improving the work efficiency. .
In addition, since the operator can turn on one side of the aircraft, the operator can work on a flat surface in mowing work on an inclined surface. It is possible to work stably.
[0038]
Further, since the engagement of the engagement member can be released as in the second aspect, the engagement member can be used when an operator is located behind the machine body to perform work or during movement as in the prior art. The handle rotation lock mechanism is not released only by operating the side clutch lever by releasing the engagement of the machine, and when changing the left or right direction during running or work, only the aircraft does not turn and work The work can be performed in the same manner as before without deteriorating the performance, and can be easily adapted to the purpose such as work and running.
[Brief description of the drawings]
FIG. 1 is an overall side view of a mower.
FIG. 2 is a plan view of a mower.
FIG. 3 is a front view of a cutting part.
FIG. 4 is a plan view of a handle base that allows the handle to be turned up and down and left and right.
FIG. 5 is a side sectional view of the same.
FIG. 6 is a front view of the same.
FIG. 7 is a side sectional view of a handle float fixing part and a rod fixing part.
FIG. 8 is a front sectional view of a rod fixing portion.
FIG. 9 is an enlarged side cross-sectional view of a rod fixing portion in a locked state.
FIG. 10 is a side cross-sectional view of the release state.
FIG. 11 is a side sectional view of a handle telescopic lever mounting portion.
FIG. 12 is also a plan view.
FIG. 13 is a front view of a handle telescopic lever.
FIG. 14 is a plan view of an operation unit.
FIG. 15 is a side view of the same.
FIG. 16 is a plan view with the cover removed.
FIG. 17 is a side sectional view of the same.
FIG. 18 is a side view showing a state where the handle turning lever also turns when the side clutch lever is grasped.
FIG. 19 is a side view of a state in which the handle rotating lever is lowered to disengage the engaging member.
FIG. 20 is a rear view at the time of turning in the mowing operation of the inclined surface.
[Explanation of symbols]
2 Handle 3 Operating section 4 Side clutch lever 5 Handle up / down rotation lever 5a Base lever 5b Upper lever 9 Handle rotation lock mechanism 11 Engine 17 Wheel 23 Handle base 71La / 71Ra Locking pin 85 Locking claw (engaging member)

Claims (2)

A handle base (23) is provided on the main body composed of an engine (11), a cutting part, and a pair of left and right traveling wheels (17). The handle base (23) can be rotated in the left and right and up and down directions. In the mower attached with 2) , the handle base (23) is provided with a handle rotation lock mechanism (9) that can lock the rotation of the handle (2) in the left and right and up and down directions, and the handle rotation lock The mechanism (9) is connected to a handle turning lever (5) disposed at the operation part at the end of the handle (2) via a connector so that it can be locked / released and the driving of the left and right traveling wheels is cut off. The contacting side clutch is connected to a side clutch lever (4) provided in the operating portion via a connecting tool, and between the connecting tool of the side clutch lever (4) and the connecting tool of the handle rotation lever (5). In charge of Member (85) is arranged, in conjunction with the cutting operation of the left and right one of the side clutch lever (4), mower, characterized by being configured to release the handle pivot locking mechanism (9) . 2. The mower according to claim 1 , wherein when an operator is positioned behind the machine body to perform work or during movement, the handle rotation lock mechanism (9) is simply operated by operating the side clutch lever (4). The mowing machine is characterized in that the engagement state of the engagement member (85) between the side clutch lever (4) and the handle rotation lock mechanism (9) can be released so as not to be released .

Images