JP4685533B2 - Traveling clutch mechanism for self-propelled agricultural machinery - Google Patents

Description

  The present invention relates to a technology of a traveling clutch mechanism. More specifically, the present invention relates to a technology of a traveling clutch mechanism used for a traveling power transmission device of a small self-propelled machine such as a self-propelled power sprayer.

2. Description of the Related Art Conventionally, in a small self-propelled agricultural machine such as a self-propelled power sprayer, a tension pulley, a claw clutch, and the like are known as a traveling clutch mechanism that controls the connection between a power engine and a power transmission device. As an example of the prior art, there is a self-propelled power sprayer that uses a tension pulley as a travel clutch mechanism (see Patent Document 1). The driving force extracted from the output shaft of the engine is intermittently driven by a traveling clutch mechanism consisting of an arm, support stay, rotating shaft, spring, brake pad, tension pulley, etc. provided between the pulleys. ing.
JP 2004-16959 A

  However, in the traveling clutch mechanism using the conventional tension pulley, the belt is frequently slipped and the belt is very worn, so the belt must be frequently replaced. Further, a small agricultural machine such as a self-propelled power sprayer requires a light and compact power transmission device as much as possible. On the other hand, in a travel clutch mechanism using a pawl type clutch, when it is provided in a narrow space, the pawl portion to be engaged when transmitting power is inevitably small, and there is a risk of breakage when a large torque is applied.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

In claim 1, in the traveling clutch (83) disposed between the traveling transmission shaft (82) on the engine (13) side of the self-propelled agricultural machine (1) and the driven shaft (93) on the traveling device side, The coupling (94) is configured to be hollow so that the end tip of the travel transmission shaft (82) is connected to the driven shaft (93) via the coupling (94), and the hollow travel transmission shaft ( 82) side polygonal hole (94a), and a circular hole (94b) for pivotally supporting the travel transmission shaft (82) at the center, the driven shaft (93) side closest to the driven shaft (93). A large circular hole (94c) for fitting is formed, and the polygonal hole (94a) at the end portion is configured to have a polygonal shape in the inner periphery, and the circular hole (94b) at the midway portion transmits the travel. The other end of the shaft (82) is rotatably supported, and the axis of the travel transmission shaft (82) and the driven shaft (93) is supported, A retaining ring is externally fitted between the end of the travel transmission shaft (82) and the circular hole (94c), and the driven shaft (93) is inserted into the circular hole (94c) at the other end of the coupling (94). Both ends are inserted and fixed, and a spring (92) and a shifter (91) are fitted on the end of the travel transmission shaft (82), and the end of the spring (92) is a spring receiving portion. The shifter (91) is disposed on the side of the spring (92), and is urged so that the shifter (91) is fitted to the coupling (94). 91) integrally includes an operation portion (91a) that also serves as a disk-shaped spring support and a power transmission portion (91b) having an outer shape of a polygonal column, and a shift arm is provided on the outer peripheral portion of the operation portion (91a). One end of (90) is fitted, and the shifter (91) can slide on the travel transmission shaft (82) in the axial direction. The power transmission part (91b) can be fitted substantially in line with the inner shape of the polygonal hole (94a), and the other end of the shift arm (90) is connected to a wire or It is connected to the travel clutch lever via a link .

  As effects of the present invention, the following effects can be obtained.

In claim 1, in the traveling clutch (83) disposed between the traveling transmission shaft (82) on the engine (13) side of the self-propelled agricultural machine (1) and the driven shaft (93) on the traveling device side, The coupling (94) is configured to be hollow so that the end tip of the travel transmission shaft (82) is connected to the driven shaft (93) via the coupling (94), and the hollow travel transmission shaft ( 82) side polygonal hole (94a), and a circular hole (94b) for pivotally supporting the travel transmission shaft (82) at the center, the driven shaft (93) side closest to the driven shaft (93). A large circular hole (94c) for fitting is formed, and the polygonal hole (94a) at the end portion is configured to have a polygonal shape in the inner periphery, and the circular hole (94b) at the midway portion transmits the travel. The other end of the shaft (82) is rotatably supported, and the axis of the travel transmission shaft (82) and the driven shaft (93) is supported, A retaining ring is externally fitted between the end of the travel transmission shaft (82) and the circular hole (94c), and the driven shaft (93) is inserted into the circular hole (94c) at the other end of the coupling (94). Both ends are inserted and fixed, and a spring (92) and a shifter (91) are fitted on the end of the travel transmission shaft (82), and the end of the spring (92) is a spring receiving portion. The shifter (91) is disposed on the side of the spring (92), and is urged so that the shifter (91) is fitted to the coupling (94). 91) integrally includes an operation portion (91a) that also serves as a disk-shaped spring support and a power transmission portion (91b) having an outer shape of a polygonal column, and a shift arm is provided on the outer peripheral portion of the operation portion (91a). One end of (90) is fitted, and the shifter (91) can slide on the travel transmission shaft (82) in the axial direction. The power transmission part (91b) can be fitted substantially in line with the inner shape of the polygonal hole (94a), and the other end of the shift arm (90) is connected to a wire or Since it is connected to the travel clutch lever via the link, when the polygonal shifter part fitted on the drive shaft is inserted into the polygonal coupling, each side will come into contact with each other, resulting in large torque during driving Can be conducted. Further, it can be provided without taking up a larger space than the tension pulley.

  Next, embodiments of the invention will be described. 1 is a left side view of the self-propelled power sprayer according to the present embodiment, FIG. 2 is a front view of the self-propelled power sprayer according to the present embodiment, and FIG. 3 is a plan view of the self-propelled power sprayer according to the present embodiment. 4 is a diagram showing a power transmission mechanism of the self-propelled power sprayer of this embodiment, FIG. 5 is a partial sectional view of a hose reel, FIG. 6 is a partial sectional view of a traveling clutch portion, and FIG. It is a perspective view of a clutch part.

  First, the overall configuration of the self-propelled power sprayer 1 of this embodiment will be described with reference to FIGS. 1 to 3. In the following description, the direction of the arrow A in FIG.

  The body frame 2 of the self-propelled power sprayer 1 of the present embodiment is a pipe frame configured in an L shape in a side view and a rectangle in a plan view, and a rear portion of the body frame 2 is erected at a right angle, and a handle 3 Is attached. A pair of left and right front wheel stays 4 and 4 and a pair of left and right rear wheel stays 5 and 5 project from the front and rear of the body frame 2 downward, and the front wheel shaft 6 is rotatably supported between the front wheel stays 4 and 4. The rear wheel shafts 7 and 7 are rotatably supported by the rear wheel stays 5 and 5, respectively. Front wheels 8 and 8 are provided on the left and right ends of the front wheel shaft 6, and rear wheels 9 and 9 are provided on the rear wheel shafts 7 and 7, respectively.

  A hose reel 11 for winding the hose 10 and a hose aligning device 12 for winding the hose 10 uniformly around the hose reel 11 are disposed behind the machine body frame 2. On the other hand, an engine 13 serving as a drive source is disposed on the front right side of the body frame 2, a sprayer 14 is disposed on the front left side, and a belt case 15 is disposed between the engine 13 and the sprayer 14. The power of the engine 13 is branched through a power transmission mechanism including a belt and a pulley housed in the belt case 15, and drives the sprayer 14, the hose aligning device 12, and the like. A power transmission mechanism using a belt or pulley housed in the belt case 15 will be described in detail later. In this embodiment, the engine 13 is disposed on the right side and the sprayer 14 is disposed on the left side. However, the present invention is not limited to this, and the left and right sides may be reversed. Moreover, it can also be set as the motor which drives by supplying electric power with a battery instead of the engine 13. FIG.

  Next, the overall configuration of the sprayer will be described with reference to FIGS. 1 to 3. The sprayer 14 includes a sprayer input shaft 21, a crankcase 22, an air chamber 23, a pressure adjustment dial 24, a water supply port 25, a water discharge port 26, a spillway 27, a crankshaft 28, and a sprayer output shaft 29. The crankshaft 28 is horizontally mounted and pivotally supported in the crankcase 22. A sprayer input shaft 21 is connected to one end of the crankshaft 28, and a sprayer output shaft 29 is connected to the other end. The sprayer input shaft 21, the crankshaft 28 and the sprayer are connected. The machine output shaft 29 is configured to be coaxial and integrally rotatable. A plurality of plungers (not shown) are accommodated in the crankcase 22, one end of which is pivotally attached to the crankshaft 28, and the plunger reciprocates as the crankshaft 28 rotates. Normally, when the sprayer 14 is used, a chemical tank 38 (shown in FIG. 3) filled with a liquid to be sprayed such as a chemical or liquid fertilizer is disposed in the vicinity of the self-propelled sprayer and a water absorption hose 39 (shown in FIG. 3). ) Is immersed in the liquid to be sprayed in the chemical tank 38, and the other end is connected to the water supply port 25. In this state, when the plunger reciprocates, the liquid to be sprayed is absorbed into the sprayer 14 from the water supply port 25, and the liquid to be sprayed is discharged from the water outlet 26 at a pressure not exceeding the predetermined value selected by the pressure adjustment dial 24. . In order to keep the discharge pressure of the liquid to be sprayed constant, an air chamber 23 filled with air is provided, and the liquid to be sprayed is discharged when the discharge pressure exceeds a predetermined value selected by the pressure adjustment dial 24. A spillway 27 is provided for returning to the chemical solution tank. One end of a return hose 37 (shown in FIG. 3) is connected to the spillway 27, and the other end is inserted into a chemical tank. Further, the water outlet 26 is provided at two positions on the front surface of the sprayer 14, each of which is provided with a ball cock 26a and a plug having a different diameter, and a plug replacement operation is performed even when a hose having a different diameter is used. Without being connected.

  Next, the configuration of the hose reel 11 will be described with reference to FIG. The hose reel 11 includes a reel core 30, reel edges 31a and 31b, a hollow shaft 32, a reel input shaft 33, a one-touch joint 34, an elbow 35, and the like. The reel core portion 30 is a hollow cylindrical member whose upper and lower surfaces are closed, and reel edge portions 31a and 31b are fitted on both ends by a method such as welding. In addition, a hollow shaft 32 is penetrated substantially at the center of the cylinder plane of the reel core 30 on the reel edge 31a side, and a reel input shaft 33 is penetrated at the approximate center of the cylinder plane of the reel core 30 on the reel edge 31b side. . One end of the hollow shaft 32 is communicated with the elbow 35 by a hose 30 b or the like, and the other end is attached to the one-touch joint 34. The one-touch joint is configured so that a plurality of cylindrical members can be attached and detached, and can be rotated. Even when the one-touch joint rotates around the axis, water does not leak at the coupling portion, and the connected hose 30b does not twist. A communication hole 30 a is formed in the outer peripheral surface of the reel core 30, and the hose 30 b passes through the communication hole and is connected to the elbow 35.

  With this configuration, the reel core 30, the reel edges 31 a and 31 b, the hollow shaft 32, and the reel input shaft 33 are configured so that their central axes are coaxial, and by rotating around the axes, The hose 10 (shown in FIG. 1) connected to the elbow 35 is wound around the reel core 30. At this time, the hose 10 wound around the reel core 30 is not entangled by being displaced toward the hollow shaft 32 or the reel input shaft 33.

  Next, the hose aligning device 12 will be described with reference to FIGS. 1 to 3. The hose aligning device 12 includes a bracket 40a, a base 40b, a front guide 41, a rear guide 42, a front guide rail 43, a rear guide rail 44, a groove engaging portion 45, a left and right feed shaft 46, a hose roller 47, a guide roller 48, It comprises a guide bar 49, a guide frame 50, a rear cover 51, and the like. The guide frame 50 is made by bending a pipe member, is bent forward in a side view, has a front-view portal shape, and projects upward from a midway part of the body frame 2. The guide frame 50 prevents the hose 10 from coming into contact with a high-temperature part such as the engine 13 to be deformed or damaged even when the hose 10 is slackened and hangs down during a winding operation or the like, and supports the rear cover 51. Used as a member. The rear cover 51 is fixed between the guide frame 50 and the rear part of the machine body frame 2, and other members constituting the hose aligning device 12 are accommodated in the rear cover 51. The bracket 40a is a U-shaped member that bends forward in a side view and is U-shaped in a front view, and is configured to be capable of turning and locking with respect to the base portion 40b. In addition, the hose roller 47 and the guide roller 48 are pivotally mounted so as to be sandwiched between the left and right wall portions of the bracket 40a, and the left and right lower end portions of the front-view portal-shaped guide bar 49 are fixed. The front guide 41 and the rear guide 42 have a cylindrical shape. The front guide 41 is fixed to the front portion of the base portion 40b, and the rear guide 42 is fixed to the rear portion of the base portion 40b. At this time, the axial direction of the front guide 41 and the rear guide 42 is horizontal and faces the left-right direction of the self-propelled power sprayer 1. The left and right ends of the front guide rail 43 slidably fitted in the front guide 41 and the left and right ends of the rear guide rail 44 slidably fitted in the rear guide 42 are fixed to the rear cover 51. Established.

  Further, between the front guide rail 43 and the rear guide rail 44, the left and right feed shafts 46 pass through the side surface of the base portion 40b so that the left and right ends of the left and right feed shafts 46 are pivotally supported by the rear cover 51. The Further, one end (left end in this embodiment) of the left and right feed shaft 46 is extended, and a fourth sprocket 70 is fitted at the tip and connected to a power transmission mechanism described later. The right and left screw spiral grooves are provided on the outer peripheral surface of the left and right feed shaft 46. The both ends of the spiral groove of the right screw and the spiral groove of the left screw are smoothly connected to each other. The groove engaging portion 45 fixed to the base portion 40b is slidably engaged with the left and right feed shaft 46, and the engaging portion is configured to be tiltable to the left and right. When the left / right feed shaft 46 rotates forward in FIG. 3 (counterclockwise in FIG. 1), the base 40b is self-propelled power spray when the groove engaging portion 45 is engaged with the spiral groove of the right-hand thread. Move toward the left side of the machine 1. Then, the groove engaging portion 45 enters the left-handed spiral groove, and the base portion 40b moves toward the right side surface of the self-propelled power sprayer 1 this time. That is, although the left and right feed shafts 46 are rotated in the same direction (counterclockwise in FIG. 1), the portion of the hose aligning device 12 that guides the hose 10 swings left and right. Accordingly, when the hose 10 is wound up, the left and right feed shafts 46 are also rotated in conjunction with the rotation of the hose reel 11, so that the hose 10 is guided by the hose roller 47, the guide roller 48, and the guide bar 49. The hose reel 11 is wound evenly (to draw a left-right alternating spiral).

  Next, a power transmission mechanism for driving the hose reel 11 and the hose aligning device 12 from the engine 13 through the sprayer 14 will be described with reference to FIGS. An engine output shaft 16 projects horizontally from the left side surface (the surface facing the belt case 15) of the engine 13 of the present embodiment, and a first pulley 17 is fixed to the engine output shaft 16. On the other hand, the sprayer input shaft 21 protrudes horizontally from the right side surface (the surface facing the belt case 15) of the sprayer 14, and the second pulley 60 and the third pulley 61 are integrated with the sprayer input shaft 21. Are loosely fitted. The drive clutch 63 is operated by operating the drive clutch lever 62, and the sprayer input shaft 21, the second pulley 60, and the third pulley 61 are configured to be connectable and disengageable. Two V belts 18 and 18 are wound between the first pulley 17 and the second pulley 60. When the driving clutch 63 is disengaged, the second pulley 60 and the third pulley 61 are rotated together by the driving force of the engine 13, but the driving force is not transmitted to the sprayer input shaft 21. When the drive clutch 63 is inserted, the driving force of the engine 13 is transmitted to the sprayer input shaft 21 in addition to the second pulley 60 and the third pulley 61. A crankshaft 28 and further a sprayer output shaft 29 are connected to the sprayer input shaft 21, and these rotate coaxially and integrally. A fifth pulley 64 is fitted on the sprayer output shaft 29. On the other hand, a sixth pulley 65 is loosely fitted on the reel input shaft 33, and a V-belt 66 is wound between the fifth pulley 64 and the sixth pulley 65. On the reel input shaft 33, a reel clutch 67 is disposed outside the sixth pulley 65 (front side in FIG. 1), and a reel brake 68 is disposed inside the sixth pulley 65 (back side in FIG. 1). Is done. Further, a third sprocket 69 is fitted on the reel input shaft 33 on the inner side (rear side in FIG. 1) from the reel brake 68. On the other hand, a fourth sprocket 70 is fitted on one end of the left and right feed shaft 46, and a chain 71 is wound between the third sprocket 69 and the fourth sprocket 70.

  As described above, by configuring the power transmission mechanism for driving the hose reel 11 and the hose aligning device 12 from the engine 13 through the sprayer 14, the drive clutch 63, the reel clutch 67, and the reel brake 68 are turned on and off. Various operations relating to the self-propelled power sprayer 1 can be smoothly performed in combination.

  Next, a power transmission mechanism for driving the front wheel portions 8 and 8 from the engine 13 which is a main part of the present invention will be described with reference to FIGS. As shown in FIG. 4, the engine 13 to the second pulley 60 are common to the power transmission mechanism to the hose reel 11 and the hose aligning device 12 described above. By operating the drive clutch lever 62, the drive clutch 63 is operated, and the second pulley 60 and the third pulley 61 can be connected to and released from the sprayer input shaft 21. A stay 81 projects below the bottom plate 80 attached to the body frame 2, and the travel transmission shaft 82 is driven between the lower end of the stay 81 and one front wheel stay (the left front wheel stay 4 in this embodiment). A shaft 93 is rotatably supported. A travel clutch 83 is provided between the travel transmission shaft 82 and the driven shaft 93. The travel clutch 83 will be described in detail later. A fourth pulley 84 is fixed to an end of the traveling transmission shaft 82 near the center of the self-propelled power sprayer 1, and a first pulley is attached to the end of the driven shaft 93 of the self-propelled power sprayer 1. A sprocket 85 is fixed. A V belt 86 is wound between the third pulley 61 and the fourth pulley 84. A second sprocket 87 is fitted on the front wheel shaft 6, and a chain 88 is wound between the first sprocket 85 and the second sprocket 87. With the configuration described above, the driving force of the engine 13 is transmitted to the front wheels 8.

  As shown in FIGS. 6 and 7, the travel clutch 83 includes a travel transmission shaft 82 (drive side shaft), a shifter 91, a spring 92, a driven shaft 93, a coupling 94, and the like. The fourth pulley 84 is fixed to one end of the travel transmission shaft 82. At the other end of the travel transmission shaft 82, the tip is connected to the driven shaft 93 via a coupling 94. The coupling 94 is hollow, and has a polygonal hole 94a closest to the drive shaft side, a circular hole 94b for pivotally supporting the travel transmission shaft 82 in the center, and a fitting shaft 93 for fitting to the driven shaft 93 closest to the driven shaft side. A large circular hole 94c is provided. The polygonal hole 94a at one end has a polygonal shape in section when viewed from the inside, and is formed in a hexagonal shape in this embodiment. A circular hole 94b in the middle of the coupling 94 in the axial direction is supported by inserting the other end of the travel transmission shaft 82 so that the other end of the travel transmission shaft 82 can rotate freely. Yes. A retaining ring is fitted on the end of the travel transmission shaft 82. The tip of the driven shaft 93 is inserted into the circular hole 94 c at the other end of the coupling 94, and both are fixed by a pin 95. However, this fixing structure is not limited, and can be achieved by bolts or the like. A spring 92 and a shifter 91 are fitted on the end of the travel transmission shaft 82. An end portion of the spring 92 is locked by a spring receiving portion 82 a, and a shifter 91 is disposed on a side portion of the spring 92 to urge the shifter 91 to fit into the coupling 94. A key is interposed between the shifter 91 and the travel transmission shaft 82, and is fitted on the travel transmission shaft 82 so as to be slidable in the axial direction and not to be relatively rotatable. The shifter 91 includes an operation portion 91a that also serves as a disk-shaped spring receiver and a power transmission portion 91b that has a polygonal columnar outer shape, and both are integrally formed by welding. One end of the shift arm 90 is fitted to the outer peripheral portion of the operation portion 91a, and the other end of the shift arm 90 is connected to the traveling clutch lever via a wire or a link. The outer shape of the power transmission portion 91b is adapted to be fitted substantially in line with the inner shape of the polygonal hole 94a formed in the hollow portion on one side of the coupling 94.

  By configuring as described above, the shifter 91 slides toward the travel transmission shaft 82 against the biasing force of the spring 92 when the travel is stopped (when the operator turns the travel clutch lever to “OFF”), Therefore, since the power transmission portion 91b of the shifter 91 is fixed at a position where it is not inserted into the polygonal hole 94a of the coupling 94, the travel transmission shaft 82 is idled. On the other hand, when the urging force of the spring 92 is received by operating a travel clutch lever (not shown) (when the operator turns the clutch “ON”), the shifter 91 slides to the driven shaft side, so that the power transmission of the shifter 91 is achieved. When the portion 91b is inserted into the polygonal hole 94a of the coupling, both side surfaces come into contact with each other to transmit a driving force to the driven shaft 93, thereby driving the front wheels 8 and 8. During this driving, the shifter 91 is always urged in the fitting direction by the spring 92 to prevent the clutch from being disconnected during traveling.

  In this way, in the traveling clutch mechanism arranged between the driving source of the self-propelled machine such as the self-propelled power sprayer 1 and the traveling device, the polygonal shifter 91 is slid in the axial direction on the traveling transmission shaft 82. A polygonal coupling 94 is provided on the driven shaft on the side portion of the shifter 91 so that the coupling 94 and the shifter 91 can be fitted to each other. When the square shifter 91 is inserted into the polygonal coupling 94, the side faces come into contact with each other, and a large torque can be conducted during driving. Further, it can be provided without taking up a large space as compared with the case of using a tension pulley.

  Further, the shape of the power transmission portion 91b of the shifter 91 and the polygonal hole 94a of the coupling 94 can be hexagonal as shown in this embodiment. The torque on each side of the polygon depends on the number of sides of the polygon. The more sides, the more the torque on each side is distributed, but the closer it gets to the circle as the number of sides increases This may cause a slip. Also, if the number of sides is reduced, the torque related to each side surface increases and the possibility of breakage increases.

  Thus, the contact between each side surface generated by increasing the number of sides of the polygon by making the shape of the power transmission portion 91b of the shifter 91 and the polygonal hole 94a of the coupling 94 hexagonal. The area becomes smaller and the risk of slipping can be avoided. Further, excessive torque load generated by reducing the number of sides of the polygon can be avoided.

The left view of the self-propelled power sprayer of a present Example. The front view of the self-propelled power sprayer of a present Example. The top view of the self-propelled power sprayer of a present Example. The figure which shows the power transmission mechanism of the self-propelled power sprayer of a present Example. The partial cross section figure of a hose reel. The partial cross section figure of a traveling clutch part. The perspective view of a driving | running | working clutch part.

1 self-propelled power sprayer 11 hose reel 13 engine 14 sprayer 82 travel transmission shaft 90 shift arm 91 shifter 93 driven shaft 94 coupling

Claims (1)

In the traveling clutch (83) disposed between the traveling transmission shaft (82) on the engine (13) side of the self-propelled agricultural machine (1) and the driven shaft (93) on the traveling device side, the traveling transmission shaft (82) ), The coupling (94) is hollow, and a polygon is formed on the hollow traveling transmission shaft (82) side so as to connect the driven shaft (93) to the driven shaft (93) via the coupling (94). A hole (94a), a circular hole (94b) for pivotally supporting the travel transmission shaft (82) at the center, and a large size for fitting the driven shaft (93) to the driven shaft (93) most closely. A circular hole (94c) is drilled, the polygonal hole (94a) at the end is configured to have a polygonal shape in the inner periphery, and the circular hole (94b) in the middle is the other of the travel transmission shaft (82). An end is supported rotatably, the axis of the travel transmission shaft (82) and the driven shaft (93) is supported, and the travel transmission shaft (82) A retaining ring is externally fitted between the end and the circular hole (94c), and the tip of the driven shaft (93) is inserted into the circular hole (94c) at the other end of the coupling (94). A spring (92) and a shifter (91) are fitted on the end of the travel transmission shaft (82), and the end of the spring (92) is locked by a spring receiving portion (82a). The shifter (91) is disposed on the side of the spring (92), and the shifter (91) is urged so as to be fitted to the coupling (94). The shifter (91) is disc-shaped. An operation part (91a) that also serves as a spring support and a power transmission part (91b) having an outer shape of a polygonal column are integrally configured, and one end of the shift arm (90) is fitted to the outer peripheral portion of the operation part (91a). The shifter (91) is slidable on the travel transmission shaft (82) in the axial direction and cannot be relatively rotated. The power transmission portion (91b) can be fitted to the inner shape of the polygonal hole (94a) so as to be fitted, and the other end of the shift arm (90) is connected to the traveling clutch lever via a wire or a link. A traveling clutch mechanism of a self-propelled agricultural machine characterized by being connected to

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