JP5297213B2 - Walking type work machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a walking type work machine equipped with a pair of right and left bar handles for operation, and an auxiliary bar handle connected over the pair of right and left bar handles, which includes a clutch lever with good operability. <P>SOLUTION: The auxiliary bar handle 12 includes: a handle body 12a along the lateral direction of a machine body; a connection bar part 12b for connecting the handle body 12a to one of the pair of right and left bar handles 11, 11 by bypassing the clutch lever 13 swingable in a machine device longitudinal direction. The clutch lever 13 is arranged between the handle body 12a of the auxiliary bar handle 12 and the bar handle 11 to which the connection bar part 12b is connected. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a walking type working machine including a pair of left and right steering bar handles and an auxiliary bar handle connected between the pair of left and right bar handles.

The above-described walking type work machine is capable of supporting and operating an auxiliary bar handle in addition to supporting and operating a bar handle when the body is turned.
Conventionally, for example, there has been a hand tractor described in Patent Document 1 as this type of walking work machine. In the hand tractor described in Patent Document 1, a pair of left and right handles 3, 3 (corresponding to a steering bar handle) are formed at the rear end of the handle frame 2, and an auxiliary handle 5 (auxiliary handle) extends across the left and right handles 3. Is equivalent to the bar handle).

JP-A-9-290776 (paragraphs [0012] to [0015], FIGS. 1 to 4)

In the above-described walking type work machine, a clutch lever is provided in the vicinity of the steering bar handle, and the main clutch or the work clutch is operated by the clutch lever.
When the auxiliary bar handle and the clutch lever are provided by applying the conventional technique, there is a problem in terms of clutch operation.
In other words, when the conventional technology is applied, it is difficult to secure a space for disposing the clutch lever near the grip portion of the bar handle and the side portion of the fuselage that is used to support the auxiliary bar handle. It tends to be located away from the grip portion of the handle and the side portion of the auxiliary bar handle facing the fuselage in front of the fuselage. In particular, when the clutch operation is required when the bar handle or the auxiliary bar handle is supported, a troublesome operation of moving the hand from the bar handle or the auxiliary bar handle to the clutch lever is required.

  An object of the present invention is to provide a walking work machine that can be provided with a clutch lever in a state in which operability is good.

The first invention is a walking work machine comprising a pair of left and right steering bar handles and an auxiliary bar handle connected across the pair of left and right bar handles,
Both ends of the auxiliary bar handle are directly connected to each of the pair of left and right bar handles,
The auxiliary bar handle includes a handle body along the lateral direction of the aircraft, a clutch lever swingable in the longitudinal direction of the aircraft for operating the main clutch or the working clutch , and the clutch lever is movable in the longitudinal direction of the aircraft. Comprising a connecting bar portion that bypasses the front side of the lever guide formed with the guide groove and connects the handle body and one of the pair of left and right bar handles;
The clutch lever, said handle body of said auxiliary bar handle, Ri disposed Tare between the bar handle the connecting bar portion is connected,
In a state where the clutch lever is operated to the disengagement operation position, the clutch lever is positioned on the lateral side of the handle body of the auxiliary bar handle .

  According to the first aspect of the present invention, the connecting bar portion of the auxiliary bar handle bypasses the clutch lever so that the clutch lever is positioned near the handle body of the auxiliary bar handle and the handle portion of the bar handle. In addition, it is possible to reach the clutch lever by moving the hand slightly from the handle body of the auxiliary bar handle.

Therefore, even when the bar handle is supported or the auxiliary bar handle is supported, the clutch lever is quickly supported instead of the handle portion of the bar handle or the handle body of the auxiliary bar handle. It is possible to obtain a walking type working machine that can quickly operate the main clutch or the working clutch.
In addition, when the clutch lever is operated to the disengagement operation position, the clutch lever is positioned on the lateral side of the handle body of the auxiliary bar handle, so that the auxiliary bar handle can be moved from the grip portion of the bar handle. The hand can reach the clutch lever at the cutting operation position by moving the hand slightly from the handle body.
Therefore, even when the bar handle is supported or when the auxiliary bar handle is supported, such as when the aircraft is turned to enter work, the clutch lever is quickly switched to the on-side. By operating, the main clutch or the working clutch can be quickly operated to the engaged state.

According to the second aspect of the present invention, there is provided a walking-type working machine including a pair of left and right steering bar handles and an auxiliary bar handle connected between the pair of left and right bar handles,
Both ends of the auxiliary bar handle are directly connected to each of the pair of left and right bar handles,
The auxiliary bar handle includes a handle body along the lateral direction of the aircraft, a clutch lever swingable in the longitudinal direction of the aircraft for operating the main clutch or the working clutch, and the clutch lever is movable in the longitudinal direction of the aircraft. Comprising a connecting bar portion that bypasses the front side of the lever guide formed with the guide groove and connects the handle body and one of the pair of left and right bar handles;
The clutch lever is disposed between the handle main body of the auxiliary bar handle and the bar handle to which the connecting bar portion is connected.

According to the configuration of the second aspect of the invention, the connecting bar portion of the auxiliary bar handle bypasses the clutch lever, thereby positioning the clutch lever near the handle body of the auxiliary bar handle and the handle portion of the bar handle. In addition, it is possible to reach the clutch lever by moving the hand slightly from the handle body of the auxiliary bar handle.

Therefore, even when the bar handle is supported or the auxiliary bar handle is supported, the clutch lever is quickly supported instead of the handle portion of the bar handle or the handle body of the auxiliary bar handle. It is possible to obtain a walking type working machine that can quickly operate the main clutch or the working clutch.

  In the third aspect of the invention, the connecting bar portion extends from the handle body to the bar handle through the side of the clutch lever and the front side of the body.

  According to the configuration of the third aspect of the invention, it is possible to connect the handle main body and the bar handle by the connecting bar portion while avoiding the connecting bar portion protruding below the machine body from the bar handle and the clutch lever.

  Therefore, a walking-type work machine in a simple state in which excellent operability of the clutch can be obtained by the connecting bar portion of the auxiliary bar handle, but there is no protrusion to the lower side of the machine body than the clutch lever of the connecting bar portion. Can be obtained.

The fourth aspect of the invention includes an auxiliary clutch lever positioned so as to be swingable in the longitudinal direction of the fuselage below the handle body of the auxiliary bar handle,
The clutch lever is switched to the disengagement operation position by a swinging operation of the auxiliary clutch lever toward the front side of the machine body.

  According to the fourth aspect of the present invention, when the handle body of the auxiliary bar handle is supported, the hand reaches the auxiliary clutch lever only by moving the hand downward from the handle body, and the clutch lever is turned off by the auxiliary clutch lever. Operation to the operation position can be performed.

  Therefore, when you are traveling or working with the auxiliary bar handle supported, you can replace the auxiliary bar handle handle body and quickly support the auxiliary clutch lever to quickly turn off the main clutch or work clutch. You can get a chance.

The fifth aspect of the present invention includes a finger operation clutch lever positioned so as to be freely operated by a finger near the grip portion of the bar handle,
The finger operation clutch lever is configured to switch the clutch lever between a disengagement operation position and an entry operation position.

  According to the configuration of the fifth aspect of the invention, the clutch lever can be switched by operating the finger operation clutch lever with the fingers of the hand supporting the grip portion of the bar handle.

  Therefore, it is possible to obtain a walking work machine with good operability that can switch the main clutch or the work clutch by a finger operation even while the bar handle is supported.

It is a side view which shows the whole walking type work machine. It is a top view which shows the control part of 1st Embodiment. It is a side view which shows the control part of 1st Embodiment. It is a top view which shows the support structure of a main clutch lever, an auxiliary clutch lever, and a finger operation clutch lever. It is a perspective view which shows the disassembled state of the support structure of a main clutch lever, an auxiliary clutch lever, and a finger operation clutch lever. It is a side view which shows the state which operated the main clutch lever and the finger operation clutch lever to the operation position. It is a side view which shows the state which operated the main clutch lever and the finger operation clutch lever to the operation position. It is a side view which shows the state which operated the main clutch lever to the brake position. It is a side view which shows the state which operated the auxiliary clutch lever to the descent | fall action position. It is a top view which shows the control part of 2nd Embodiment. It is a perspective view which shows the bar handle and auxiliary bar handle of 2nd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First Embodiment
FIG. 1 is a side view of a walking work machine according to an embodiment of the present invention. As shown in this figure, a walking work machine according to an embodiment of the present invention includes a machine frame 2 having a pair of left and right traveling wheels 1 and 1 that can be driven, and a rear portion of the machine frame 2 facing upward from the machine body. And a rotary tiller 3 connected to the rear part of the body frame 2, which includes a traveling body having a control unit 10 equipped with a pair of left and right bar handles 11 and 11.

  The fuselage frame 2 includes a mission case 4 having the pair of left and right traveling wheels 1 and 1 at the lower part, an engine support frame 5 extending forward from the mission case 4 and an upper end side of the mission case 4. An upper frame 2a connected to the rear portion is provided. A pair of left and right bar handles 11, 11 extend from the upper frame 2a.

  An engine 6 is provided on the engine support frame 5, and a main clutch 7, which is a belt tension clutch, is provided between the output shaft 6 a of the engine 6 and the input shaft 4 a of the transmission case 4, and the driving force of the output shaft 6 a of the engine 6 Is input to the mission case 4 via the main clutch 7, and the driving force input to the mission case 4 is transmitted to the pair of left and right traveling wheels 1, 1 via a mission (not shown) built in the mission case 4. And transmitted to the rotary tiller 3.

  FIG. 2 is a plan view showing the control unit 10. FIG. 3 is a side view showing the control unit 10. As shown in these drawings and FIG. 1, the control unit 10 includes the pair of left and right bar handles 11, 11, and an auxiliary connected across the extending end sides of the pair of left and right bar handles 11, 11. A clutch lever 13 (hereinafter referred to as a main clutch lever 13) and a lever guide 14 provided with a bar handle 12 and provided near the left bar handle 11 between the left bar handle 11 and the right bar handle 11. It has.

  That is, by supporting the pair of left and right bar handles 11, 11 or the auxiliary bar handle 12 and swinging the traveling machine body up and down around the axle center of the traveling wheel 1, the traveling machine body is provided with the tilling rotor 3 a of the rotary tiller 3. Is switched to a descending work state in which is grounded and a non-working state in which the tilling rotor 3a is lifted from the ground.

  The main clutch lever 13 is swung in the longitudinal direction of the traveling machine body along the guide groove 14a of the lever guide 14, so that the entering operation position [ON] located at the front end of the guide groove 14a (see FIG. 7). And a cutting operation position [OFF] (see FIG. 3) located at the rear end of the guide groove 14a.

  By operating the main clutch lever 13 to the input operation position [ON], operating the main clutch 7 to the engaged state, and operating the traveling vehicle body to the lowering work state, the traveling vehicle body is moved by the pair of left and right traveling wheels 1, 1. It travels and pulls the rotary tiller 3, and the rotary tiller 3 tills the work part by the tiller rotor 3a.

  As shown in FIG. 2, the auxiliary bar handle 12 includes a handle main body 12 a along the lateral direction of the traveling machine body, and includes a left connecting bar portion 12 b that connects the handle main body 12 a and the left bar handle 11. A right connecting bar portion 12c for connecting the handle main body 12a and the right bar handle 11 is provided.

  The right connecting bar portion 12 c is connected to the right bar handle 11 at a portion located near the front side of the grip portion 11 a of the bar handle 11.

  As shown in FIGS. 2 and 3, the connecting bar portion 12 b on the left side is located on the side opposite to the side where the left bar handle 11 is located on the lever guide 14 and on the right side of the main clutch lever 13 in the front-rear direction. A main body side portion 12d passing in the direction and a handle side portion 12e passing the lever guide 14 and the front side of the main body of the main clutch lever 13, and the main body of the handle body bypassing the main clutch lever 13 and the lever guide 14 12a and the left bar handle 11 are connected.

  As shown in FIG. 3, the left connecting bar portion 12b and the right connecting bar portion 12c are provided with postures extending upward from the bar handle 11 so that the handle main body 12a of the auxiliary bar handle 12 can be The bar handle 11 is positioned higher than the grip portion 11a.

  As shown in FIGS. 2 and 3, the main clutch lever 13 is positioned on the lateral side of the handle body 12 a of the auxiliary bar handle 12 in a state where the main clutch lever 13 is operated to the disengagement operation position [OFF]. The main clutch lever 13 and the auxiliary bar handle 12 are arranged.

  Accordingly, when the auxiliary bar handle 12 is supported by the handle main body 12a, the left bar handle 11 is supported by the grip portion 11a by slightly moving the hand from the handle main body 12a to the left side of the traveling machine body. If it is, the hand reaches the grip part 13b of the main clutch lever 13 located at the cutting operation position [OFF] by slightly moving the hand from the grip part 11a to the front side of the traveling machine body and enters the main clutch lever 13 Can be switched to position [ON].

  Next, a structure that enables the main clutch 7 to be operated by the main clutch lever 13 will be described.

FIG. 4 is a plan view showing a support structure for the main clutch lever 13. FIG. 5 is a perspective view showing an exploded state of the support structure of the main clutch lever 13. As shown in these drawings and FIG. 6, the support structure of the main clutch lever 13 has a boss portion 13 a provided on the base end side of the main clutch lever 13 with a bifurcated lever support portion 16 b via a lever support shaft 15. And a base member 18 that rotatably supports a boss portion 16a of the lever support 16 via a support shaft 17. The base member 18 is fixed to the left bar handle 11.

  In addition to the boss portion 16a and the lever support portion 16b, the lever support body 16 includes a connecting plate 16c provided on one end side of the boss portion 16a so as to be integrally rotatable. The lever support portion 16b is fixed to the boss portion 16a.

  The lever support 16 includes a main clutch via an arcuate interlocking link 19 whose one end is rotatably connected to the connecting plate 16c, and an operation cable 20 whose one end is connected to the other end of the interlocking link 19. 7 is connected to a tension arm 7a (see FIG. 1), and the main clutch lever 13 is connected to the tension arm 7a via a lever support shaft 15, a lever support body 16, an interlocking link 19, and an operation cable 20. It is connected to.

  FIG. 7 is a side view showing a state in which the main clutch lever 13 is engaged and operated to the operation position [ON]. As shown in this figure, when the main clutch lever 13 is swung to the front side of the traveling machine body along the guide groove 14a around the axis P of the supporting shaft 17 in the lateral direction of the traveling machine body, the on operation position [ON ]become. As the main clutch lever 13 is operated to the entry operation position [ON], the lever support 16 is swung to the side around the axis P of the support shaft 17 and the interlocking link 19 is moved to the rear side of the traveling machine body. The operation cable 20 is pulled by operating the movement, and the tension arm 7a is cut by the operation cable 20 to swing to the tension side against the urging spring to switch the main clutch 7 to the engaged state. At this time, the main clutch lever 13 keeps the main clutch 7 in the engaged state by cutting the operation cable 20 against the urging spring by the action of the interlocking link 19 and maintaining the pulled state.

  FIG. 6 is a side view showing a state in which the main clutch lever 13 is operated to the disengagement operation position [OFF]. As shown in this figure, when the main clutch lever 13 is swung to the rear side of the traveling machine body along the guide groove 14a around the axis P of the supporting shaft 17 in the lateral direction of the traveling machine body, the cutting operation position [OFF ]become. As the main clutch lever 13 is operated to the cutting operation position [OFF], the lever support body 16 is swung to the cutting side around the axis P of the support shaft 17, and the interlocking link 19 is moved to the front side of the traveling machine body. The operating cable 20 is loosened by moving, and the tension arm 7a is cut and swung to the loose side by the urging spring to switch the main clutch 7 to the disengaged state.

  As shown in FIGS. 4 and 5, the interlocking link 21 is swingably supported at a portion located on the inner side of the traveling machine body from the lever support body 16 of the support shaft 17. This interlocking link 21 is interlocked with the operation part of the parking brake built in the mission case 4 via the operation cable 22. That is, the main clutch lever 13 can be operated by applying the parking brake.

FIG. 8 is a side view showing a state in which the main clutch lever 13 is operated to the brake position [B]. When the main clutch lever 13 is pivoted inward of the traveling machine body about the axis of the lever support shaft 15 at the cutting operation position [OFF], the guide groove 14b connected to the rear end portion of the guide groove 14a of the lever guide 14 is provided. The base end of the main clutch lever 13 is engaged with an interlocking pin 23 (see FIGS. 4 and 5) provided on the interlocking link 21. When the main clutch lever 13 is swung to the rear side of the traveling machine body along the guide groove 14b around the axis P of the support shaft 17, the brake position [B] is obtained. When the main clutch lever 13 moves in the guide groove 14b toward the brake position [B], the base portion of the main clutch lever 13 presses the interlocking pin 23 to move the interlocking link 21 around the axis P of the support shaft 17. When the swinging operation is performed, the interlocking link 21 pulls the operation cable 22 to operate the parking brake operation unit to the on position, and the main clutch lever 13 is located at the brake position [B], the parking brake is on. . At this time, the main clutch lever 13 is held in the brake position [B] against the cutting urging force of the parking brake by being engaged with the locking recess communicated with the rear end portion of the guide groove 14b. Keep the brake engaged.

  As shown in FIGS. 1 and 3, the steering unit 10 includes a steering clutch lever 26 positioned below the grips 11 a of the pair of left and right bar handles 11 and 11.

The steering clutch lever 26 located below the left grip 11 a is operated to grip the left traveling wheel of the pair of steering clutches (not shown) positioned inside the mission case 4. The steering clutch corresponding to 1 is operated to the disengaged state, and the steering operation is performed so that the traveling machine body travels leftward.
The steering clutch lever 26 positioned below the right grip 11 a is operated to handle the steering wheel 1 corresponding to the right traveling wheel 1 of the pair of steering clutches positioned inside the mission case 4. The steering clutch is operated to disengage, and the steering body is steered to travel to the right.

As shown in FIG. 2, the control unit 10 includes an engine switch 27 provided at the rear end of the base member 18. The engine switch 27 includes a circular operation member 27a that can be freely rotated and pushed. When the traveling machine body is traveling, such as during work, the operation member 27a is rotated to be switched to an operating state. In such a case, the operation member 27a is pressed to switch to the stopped state. The engine switch 27, when operated in the operating state, to allow the operation of the engine 6 outputs an operation command, when it is operated in the stop state, to stop the engine 6 by outputting a stop command.

  As shown in FIGS. 1, 2, and 3, the control unit 10 includes an auxiliary clutch lever 30 positioned below the handle body 12 a of the auxiliary bar handle 12.

  The left base end portion of the auxiliary clutch lever 30 is rotatably supported by the support shaft 17, and the right base end portion of the auxiliary clutch lever 30 is rotatably supported by a support member 32 provided on the right bar handle 11. The auxiliary clutch lever 30 is supported so as to be swingable in the front-rear direction of the traveling machine body around the axis P of the support shaft 17 in the lateral direction of the traveling machine body. The auxiliary clutch lever 30 is urged to swing to the rising standby position [U] by a spring 31 connected to the base end portion on the left side of the auxiliary clutch lever 30 and the base member 18. The auxiliary clutch lever 30 is operated to be lowered by manual operation, or when the traveling machine body is moved backward, the auxiliary clutch lever 30 hits the operator and is lowered by this contact without allowing the operator to move backward. As a result, the main clutch lever 13 is turned off from the rising standby position [U] and the main clutch lever 13 is switched to the operation position [OFF] to switch the main clutch 7 to the disengaged state.

  FIG. 9 is a side view showing a state in which the auxiliary clutch lever 30 is operated to the lowering operation position [D]. As shown in this figure, when the auxiliary clutch lever 30 is lowered from the rising standby position [U] against the spring 31, the auxiliary clutch lever 30 is moved to the lowering action position [D]. When the auxiliary clutch lever 30 is operated to the lowering operation position [D], the auxiliary clutch lever 30 is provided at the end portion of the boss portion 16a of the lever support 16 so as to be integrally rotatable by the left base end portion of the auxiliary clutch lever 30. The lever support 16 is rotated through the passive body 16d in contact with the passive body 16d, whereby the clutch lever 13 is switched from the on position [ON] to the off position [OFF].

  As shown in FIGS. 2 and 3, the steering unit 10 includes a finger operation clutch lever 35 disposed near the grip portion 11 a of the bar handle 11 connected to the left connecting bar portion 12 b of the auxiliary bar handle 12. .

The finger operation clutch lever 35 is supported by the base member 18 via a support shaft 36 that is connected to the base end portion of the finger operation clutch lever 35, and the operation portion 35a is supported by a finger of a hand that supports the grip portion 11a of the bar handle 11. Is moved up and down around the axis of the support shaft 36 to switch between the on position [ON] and the cut position [OFF].
The finger operation clutch lever 35 is operated to the engagement position [ON] to switch the main clutch lever 13 to the engagement operation position [ON], and is operated to the disconnection position [OFF] to operate the main clutch lever 13. And switch to the operation position [OFF].

  That is, as shown in FIGS. 5 and 6, the finger operation clutch lever 35 includes an operation member 37 that extends from the base end portion of the finger operation clutch lever 35 so as to be integrally swingable. The operation member 37 includes an entering arm portion 37a and a cutting arm portion 37b.

  FIG. 7 is a side view showing a state where the finger operation clutch lever 35 is operated to the on position [ON]. As shown in this figure, when the finger operation clutch lever 35 is operated to be lowered around the traveling machine body transverse axis of the support shaft 36, the finger operation clutch lever 35 enters the on position [ON]. As the finger operation clutch lever 35 is lowered and swung, the entering arm portion 37a is raised and swung around the axis of the support shaft 36. The entering arm portion 37a is provided on the connecting plate 16c of the lever support 16. When the finger operation clutch lever 35 is in the engaged position [ON] by pressing the roller 16e and swinging the lever support 16, the main clutch lever 13 is switched to the engaged operation position [ON].

  FIG. 6 is a side view showing a state in which the finger operation clutch lever 35 is operated to the cut position [OFF]. As shown in this figure, when the finger operation clutch lever 35 is operated to be raised around the traveling machine body lateral axis of the support shaft 36, the finger operation clutch lever 35 is set to the cutting position [OFF]. The finger operation clutch lever 35 causes the cutting arm portion 37b to swing downward around the axis of the support shaft 36 along with the upward swing, and a roller 37c provided at the tip of the cutting arm portion 37b is connected to the connecting plate 16c. When the finger operation clutch lever 35 is moved to the cut position [OFF] by pressing the lever support 16 by pressing the peripheral surface portion 16f, the main clutch lever 13 is switched to the cut operation position [OFF].

  The base portion of the main clutch lever 13 and the finger operation clutch lever 35 and the left base portion of the auxiliary clutch lever 30 are covered from above with a lever guide 14, and this lever guide 14 is a connecting bar portion of the auxiliary bar handle 12. 12b is arranged along the bar handle 11 in a state of being close to the main body side portion 12d and overlapping the bar handle 11 in a plan view. A recessed portion is formed in the rear inner portion of the lever guide 14, and an operation member 27 a of the engine switch 27 protrudes from the hole formed in the recessed portion.

[Second Embodiment]
FIG. 10 is a plan view showing the control unit 10 of the second embodiment. As shown in this figure, in the control unit 10 of the second embodiment, a clutch lever 39 for a work machine (hereinafter referred to as “working machine”) is provided near the right bar handle 11 between the left bar handle 11 and the right bar handle 11. (Referred to as a work clutch lever 39). The auxiliary bar handle 12 bypasses the main clutch lever 13 and the work clutch lever 39.

Comparing the control unit 10 of the second embodiment with the control unit 10 of the first embodiment, the control unit 10 of the second embodiment is provided with a work clutch lever 39, and the auxiliary bar handle 12 is the main clutch lever. 13 is different from the control unit 10 of the first embodiment and the control unit 10 of the second embodiment in that the work clutch lever 39 is also bypassed. 1 and driving unit 10 of the embodiment has the same structure as the steering unit 10 of the second embodiment.

Next, the auxiliary bar handle 12 and the work clutch lever 39 provided in the control unit 10 of the second embodiment will be described.
As shown in FIGS. 10 and 11, the auxiliary bar handle 12 provided in the control unit 10 of the second embodiment includes a handle body 12 a along the lateral direction of the traveling machine body, and connects the handle body 12 a and the left bar handle 11. And a right connecting bar portion 12c for connecting the handle body 12a and the right bar handle 11 to each other.

  The left connecting bar portion 12b has the same configuration as the left connecting bar portion 12b of the auxiliary bar handle 12 provided in the control unit 10 of the first embodiment.

The right connecting bar portion 12c has a lateral side opposite to the side on which the right bar handle 11 of the lever guide 40 for the working clutch lever 39 is located and a left lateral side of the working clutch lever 39 in the longitudinal direction of the body. Since the main body side portion 12d that passes through and the handle side portion 12e that passes the lever guide 40 and the front side of the machine body of the work clutch lever 39 are provided, the handle main body bypasses the lever guide 40 and the work clutch lever 39. 12a and the right bar handle 11 are connected.

The work clutch lever 39 is swung in the longitudinal direction of the traveling body along the guide groove provided in the lever guide 40, thereby switching the work clutch built in the transmission case 4 between the on state and the off state. Then, the rotary tiller 3 is driven or stopped.
The work clutch lever 39 is moved to the rear side of the traveling machine body to be in a cutting operation position, and is located on the right side of the handle body 12a of the auxiliary bar handle 12 in the state of being in the cutting operation position.

  INDUSTRIAL APPLICABILITY The present invention can be used for a walking type rice transplanter and a walking type tractor in addition to a walking type field cultivator.

7 Main Clutch 11 Bar Handle 11a Bar Handle Grip 12 Auxiliary Bar Handle 12a Auxiliary Bar Handle Handle Body 12b, 12c Auxiliary Bar Handle Connection Bar 13 Clutch lever 30 Auxiliary clutch lever 35 Finger operated clutch lever OFF Clutch lever cut Operation position ON Clutch lever engagement operation position

Claims (5)

A walking type work machine comprising a pair of left and right steering bar handles and an auxiliary bar handle connected across the pair of left and right bar handles,
Both ends of the auxiliary bar handle are directly connected to each of the pair of left and right bar handles,
The auxiliary bar handle includes a handle body along the lateral direction of the aircraft, a clutch lever swingable in the longitudinal direction of the aircraft for operating the main clutch or the working clutch , and the clutch lever is movable in the longitudinal direction of the aircraft. Comprising a connecting bar portion that bypasses the front side of the lever guide formed with the guide groove and connects the handle body and one of the pair of left and right bar handles;
The clutch lever, said handle body of said auxiliary bar handle, Ri disposed Tare between the bar handle the connecting bar portion is connected,
A walking type working machine in which the clutch lever is positioned on a lateral side of the handle main body of the auxiliary bar handle in a state where the clutch lever is operated to the disengagement operation position . A walking type work machine comprising a pair of left and right steering bar handles and an auxiliary bar handle connected across the pair of left and right bar handles,
Both ends of the auxiliary bar handle are directly connected to each of the pair of left and right bar handles,
The auxiliary bar handle includes a handle body along the lateral direction of the aircraft, a clutch lever swingable in the longitudinal direction of the aircraft for operating the main clutch or the working clutch, and the clutch lever is movable in the longitudinal direction of the aircraft. Comprising a connecting bar portion that bypasses the front side of the lever guide formed with the guide groove and connects the handle body and one of the pair of left and right bar handles;
The walking type working machine in which the clutch lever is disposed between the handle body of the auxiliary bar handle and the bar handle to which the connecting bar portion is connected .   The walking type work machine according to claim 1 or 2, wherein the connecting bar portion extends from the handle body through the side of the clutch lever and the front side of the body to the bar handle. Auxiliary clutch lever is provided below the handle body of the auxiliary bar handle so as to be swingable in the longitudinal direction of the fuselage.
The walking type work machine according to any one of claims 1 to 3, wherein the clutch lever is switched to a disengagement operation position by a swinging operation of the auxiliary clutch lever toward the front side of the machine body. A finger operation clutch lever is provided near the grip portion of the bar handle so as to be freely operated by a finger,
The walking type work machine according to any one of claims 1 to 4, wherein the finger operating clutch lever is configured to switch the clutch lever between a cutting operation position and an entering operation position.

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