JP6374766B2 - Work vehicle - Google Patents

Description

  The present invention relates to a work vehicle such as a tractor, and more particularly to a brake mechanism of the work vehicle.

  A work vehicle that performs planting and tilling work on a farm field including a tractor generally includes a pair of left and right brake pedals that brake the left and right rear wheels independently, while operating either of the left and right brake pedals. It is known that the brake can be turned by steering operation.

  Conventionally, in order to avoid a single brake unintended by the driver (a state where only the left and right brake devices are operated), a connecting piece for connecting the left brake pedal and the right brake pedal, and a left brake pedal and a right brake pedal respectively. There has been proposed a work vehicle that includes a pair of release pedals disposed above, and that can be switched between a connected state and a released state by the connecting piece by depressing the release pedal (see Patent Document 1).

JP2013-141833A

  However, in the work vehicle described in Patent Document 1, since the release pedal is disposed close to the left brake pedal and the right brake pedal, the driver unintentionally releases the brake pedal when operating the brake pedal. If the pedal is depressed, there is a risk of erroneous operation resulting in a disengaged state where a single brake can occur.

  On the other hand, when the release pedal is arranged so that it can be operated with the left foot, there is a risk of erroneous operation with the clutch pedal that is normally operated with the left foot.

  Accordingly, an object of the present invention is to provide a work vehicle in which a connection release pedal (release pedal) and a clutch pedal are provided so as to have different operation directions, thereby solving the above-described problems.

The present invention includes a clutch pedal (16) supported by the traveling machine body (4) and operated substantially in the front-rear direction;
A left brake pedal (17) and a right brake pedal (18);
It is possible to move between a connection position for connecting the left brake pedal (17) and the right brake pedal (18) and a connection release position for allowing the left brake pedal (17) and the right brake pedal (18) to be operated independently. A connector (35) provided in the
In a work vehicle (1) comprising a connection release mechanism (A) capable of switching the connection tool (35) between the connection position and the connection release position.
The connection release mechanism (A) includes a rotation shaft (43) supported by the traveling machine body (4),
A decoupling pedal (19) supported on the pivot shaft (43) so as to be pivotable up and down, and provided with a pedal portion (41) at the tip;
A connection member (29) for connecting the connection release pedal (19) and the connection tool (35);
The pedal portion (41) is arranged substantially horizontally with the rotation shaft (43) when the connector (35) is in the connection position.
It is characterized by that.

For example, referring to FIG. 2, a driver's seat on which an operator is seated is provided.
The left brake pedal (17) and the right brake pedal (18) are collectively arranged on the front right side of the driver seat,
The clutch pedal (16) and the pedal portion (41) are arranged together on the front left side of the driver seat.

For example, referring to FIG. 5, the connection release mechanism (A) includes a support shaft (76) supported by the traveling machine body (4), and
A pedal-side connecting portion (77) connected to the connection release pedal (19) and a connecting member-side connecting portion (63) connected to the connecting member (29) are rotatably provided on the support shaft (76). A link member (61) having
The distance from the support shaft (76) to the pedal side connection portion (77) is set shorter than the distance from the support shaft (76) to the connecting member side connection portion (63).

  In addition, although the code | symbol in the said parenthesis is for contrast with drawing, it does not limit the structure of this invention at all.

  According to the first aspect of the present invention, when the pedal arm is supported by the rotating shaft so as to be rotatable up and down, and the connecting portion is in the connecting position, the pedal portion is arranged substantially horizontally with the rotating shaft. As a result, the pedal part is operated in a substantially vertical direction with respect to the clutch pedal that is operated in a substantially forward / backward direction, so that the clutch pedal operation is differentiated from the pedal part operation. Can be reduced.

  According to the second aspect of the present invention, since the left brake pedal and the right brake pedal are disposed at the right foot of the driver, and the clutch pedal and the disengagement pedal are disposed at the left foot, the disengagement pedal and the left and right brake pedals are respectively provided. It is possible to operate with another foot, and it is possible to improve safety by reducing erroneous operations.

  According to the third aspect of the present invention, the distance from the support shaft to the pedal side connection portion of the link plate that connects the connection release pedal and the connection member is shorter than the distance from the support shaft to the connection member side connection portion. Is set. For this reason, the link plate can amplify the amount of rotation of the connection release pedal and transmit it to the connecting member. Thereby, in addition to being able to switch the connection tool between the connection position and the connection release position even if the amount of depression of the pedal portion is small, the connection release pedal with a small rotation range can be arranged close to the step floor, Operability can be improved.

The whole perspective view which shows the tractor concerning this Embodiment. The perspective view which shows the front part of the driving | operation operation part of a tractor. The perspective view. (A) The expansion perspective view of a driving operation part front part, (b) The enlarged view which shows the shape of a parking arm. The expansion perspective view from the bonnet side of a driving operation part front part. The enlarged view which shows a left brake pedal and a right brake pedal. The enlarged view which shows a connection cancellation | release mechanism.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. A tractor 1 as an example of a work vehicle includes a pair of left and right front wheels 2 and 2, a pair of left and right rear wheels 3 and 3, and a traveling machine body 4 supported by the front wheels 2 and 2 and the rear wheels 3 and 3 in FIG. 1. And a working machine (not shown) such as a rotary tiller connected to the rear part of the traveling machine body 4 and performing various operations such as a tilling work by the working machine while the traveling machine body 4 travels forward. An engine (not shown) is disposed at the front of the traveling machine body 4, and the engine is covered with a hood 6. A cabin 7 is erected at the rear part of the traveling machine body 4, and a driving operation unit 8 is disposed inside the cabin 7.

  As shown in FIG. 2, the floor surface of the driving operation unit 8 includes a step floor 25. In front of the driving operation unit 8, a steering wheel 11, a column cover 13 that covers a support shaft (not shown) of the steering wheel 11, and a dashboard that is adjacent to the column cover 13 and covers an upper front portion of the driving operation unit 8. 12, a panel rear cover 14 extending downward from the column cover 13 and adjacent to the step floor 25, and left and right visors 15, 15 extending left and right from the upper portion of the panel rear cover 14 and covering the lower portion of the dashboard 12. , Is arranged. A lock lever 20 protrudes from the upper left portion of the panel rear cover 14, a connection release pedal 19 protrudes from the lower left portion, and a parking brake lever 21 protrudes from the upper right portion. A clutch pedal 16 extending downward from the left visor 15 is disposed on the left side of the panel rear cover 14, and a left brake pedal 17 and a right brake pedal 18 extending downward from the right visor 15 are disposed on the right side of the panel rear cover 14. Is arranged.

  As shown in FIG. 3, a brake pedal shaft 28 supported by the traveling machine body 4 is disposed in the left-right direction, surrounded by the dashboard 12, the panel rear cover 14, and the visors 15 and 15. The clutch pedal 16 is suspended from the left end of the brake pedal shaft 28 via a boss portion 16a so as to be rotatable. The right brake pedal 18 is suspended from the right end of the brake pedal shaft 28 via a boss portion 18a, and the left brake pedal 17 is suspended via a boss portion 16a and a boss portion 17a adjacent to the boss portion 18a. It has been. The left brake pedal 17 and the right brake pedal 18 are urged to a neutral position by return springs 30 and 31 connected to the boss portions 17a and 18a, respectively. Brake devices (not shown) for the left rear wheel 3 and the right rear wheel 3 are operated via the rod 23.

  As shown in FIGS. 4 to 6, the left brake pedal 17 includes the boss portion 17a, a brake arm 17b extending downward from the boss portion 17a, a tread 17c attached to the lower end of the brake arm 17b, And an auxiliary brake arm 33 extending downward from the boss portion 17a. The right brake pedal 18 includes the boss portion 18a, a brake arm 18b extending downward while being curved from the boss portion 18a, and a tread 18c attached to the lower end of the brake arm 18b. The arm upper portion 18b1 extending downward from the boss portion 18a, the arm skewing portion 18b2 extending rightward and downward from the lower end of the arm upper portion 18b1, and extending downward from the lower end of the arm skewing portion 18b2 to support the tread 18c. Arm lower portion 18b3.

  A bracket 89 is attached to a corner 18b4 (see FIG. 6) formed by the arm upper portion 18b1 and the arm skewing portion 18b2 of the right brake pedal 18, and a pin 90 is implanted in the bracket 89 toward the rear of the aircraft. Has been. An L-shaped connecting plate 35 (connector) is rotatably supported on the pin 90. On the right side surface of the arm 17b of the left brake pedal 17, a hook plate having a notch 36b with which the left end portion 35a of the connecting plate 35 can be engaged and a guide portion 36a extending in the front-rear direction from the notch 36b. 36 is provided. The connection plate 35 is rotatably provided at a connection position where the connection plate 35 is engaged with the notch 36b and a connection release position where the connection plate 35 is rotated upward from the connection position and disengaged from the notch 36b. The connecting plate 35 is connected to the wire 29 (connecting member) via a connecting pin 39 (connecting member side connecting portion) provided between the left end 35 a and the pin 90, and the lower end of the connecting plate 35. The detected body 85 of the connection sensor 37 described later is integrally supported via a support arm 86 attached to the portion 35b.

  The connecting plate 35 is not limited to the plate shape, and may have another shape (for example, a cross shape and a T shape) having a left end portion and a lower end portion instead of the L shape. The connecting plate 35 may be formed in a hook shape or a rod shape that engages with the hook plate 36 instead of the left end portion 35a, or may be formed in a rod shape instead of the lower end portion 35b. Good.

  A connection sensor 37 that magnetically detects the proximity and separation of the detected object 85 is attached to the side surface of the arm upper portion 18b1 on the bonnet side. The support arm 86 supports the detection object 85 by extending from the lower end portion 35b of the connecting plate 35 to the bonnet side through the lower portion of the arm upper portion 18b1 and extending upward from the horizontal portion 86a. And a rising portion 86b. A return spring 88 is stretched between the bracket 38 provided on the lower surface of the arm skew portion 18b2 and the horizontal portion 86a of the support arm 86, and the connection plate 35 integral with the support arm 86 is connected to the connection position. Energized to hold on.

  The bracket 38 and the return spring 88 may be provided on the upper surface or the front surface of the arm skew portion 18b2, and may be biased so as to hold the connecting plate 35 at the connecting position.

  As shown in FIGS. 4 to 7, a connection release mechanism A, a lock mechanism B, and a parking brake cooperation mechanism C, which will be described later, are provided below the front and lower sides of the driving operation unit 8. The connection release mechanism A capable of switching the connection plate 35 between the connection position and the connection release position includes a connection release pedal 19, a link plate 61 (link member), and a wire 29. The decoupling pedal 19 includes a pedal part 41 that can be stepped on, a pedal arm 42 that extends in the longitudinal direction of the machine body and supports the pedal part 41 via bolts 79a and 79b at the rear side (driver's seat side) end of the machine body, The pedal arm 42 is rotatably supported by a rotating shaft 43 supported by the traveling machine body 4 at a lower portion thereof. The connection release pedal 19 is provided so as to be swingable in a substantially vertical direction, and is biased to a neutral position by a return spring (not shown).

  At the end of the pedal arm 42 on the bonnet side, connecting pins 78 and locking pins 45 are alternately projected in the left-right direction. The connecting pin 78 is engaged with a long hole 77 (pedal side connecting portion) provided at one end of a link plate 61 provided rotatably on the rotating shaft 76. The wire 29 is connected to a connection pin 63 provided at the other end of the link plate 61. It should be noted that the distance from the rotation shaft 76 of the link plate 61 to the far end of the long hole 77 is greater than the distance from the rotation shaft 76 to the connection pin 63 so as to amplify and transmit the rotation distance of the connecting pin 78. Is also set short.

  Next, the lock mechanism B that locks the connection release mechanism A will be described. The lock mechanism B includes a lock lever 20, a link rod 51, a lock arm 52, a winding spring 53, and an operation plate 55. As shown in FIG. 4, a pivot shaft 62 is projected from a bracket 72 supported by the traveling machine body 4 and disposed above the lock lever 20. Position) and a lock lever 20 movably provided in a lock release position (pressing position), and an operation plate 55 having an A-shape and having a recess 55a facing substantially upward are integrally rotatable. Is provided. A locking pin 64 is planted on the bracket 72 so as to face the concave portion 55a of the operation plate 55. The locking pin 64 is located at a position corresponding to the lock position and the lock release position of the lock lever 20. Is provided so as to be locked.

  A lock arm 52 having a notch 52a engageable with the locking pin 45 is loosely fitted on the arm shaft 70 supported by the traveling machine body 4, and the operation plate 55 and the lock arm 52 have a length. Are pivotally connected by an adjustable link rod 51. A winding spring 53 provided by being externally fitted to the arm shaft 70 urges the lock arm 52 in a direction away from the locking pin 45.

  Next, the parking brake lever 21 and the parking brake cooperation mechanism C will be described. As shown in FIG. 5, the parking brake lever 21 movably provided between the parking position (pull-up position) and the parking release position (push-down position) is integrated with a notch plate 56 having a notch 71 on the lower surface, and A rotating shaft 57 supported by the traveling machine body 4 is rotatably provided. A return spring 65 is stretched between the notch plate 56 and the traveling machine body 4 to urge the parking brake lever 21 to be held at the parking release position. The auxiliary brake arm 33 extending downward from the boss portion 17a of the left brake pedal 17 is provided with a small plate 69. The small plate 69 is a parking brake lever when the left brake pedal 17 is depressed. When 21 is moved from the parking release position to the parking position, it is provided to engage with the notch 71. The small plate 69 is provided at an angle of 10 degrees to 30 degrees behind the machine body at a position where the small plate 69 is engaged with the notch 71, and the notch 71 is also provided to be inclined so as to be engaged therewith.

  The parking brake linkage mechanism C includes an arm 67, a boss 58, and a parking arm 60. A boss 58 is loosely fitted to the arm shaft 70, and an arm 67 interlocking with the notch plate 56 is integrally provided at one end of the boss 58 via a link 66 whose length is adjustable. A parking arm 60 having a notch 60a engageable with the locking pin 45 is integrally provided. The parking arm 60 and the lock arm 52 that can be engaged with the locking pin 45 are provided so that the notches 60a and 52a engage with the locking pin 45 from different directions.

  In the present embodiment, the driver operates the left brake pedal 17, the right brake pedal 18, the connection release pedal 19, the lock lever 20, and the parking brake lever 21 to take the rear wheel 3, 3 is braked.

  Hereinafter, the operation of the configuration of the present embodiment will be described in the order of traveling on the road, working, and stopping. When driving on the road, the driver places the lock lever 20 in the lock position and the parking brake lever 21 in the parking release position, and does not operate the connection release pedal 19. That is, the lock arm 52 is engaged with the locking pin 45 and the parking arm 60 is separated from the locking pin 45 corresponding to the operation positions of the lock lever 20 and the parking brake lever 21. Further, the connecting plate 35 is maintained at the connecting position by the urging force of the return spring 88. For this reason, the left brake pedal 17 and the right brake pedal 18 are connected by the connecting plate 35 and are always in an interlocked state (connected state), and the driver temporarily steps on either the left brake pedal 17 or the right brake pedal 18. Even if the brake pedal is pushed in, the pedaling force is transmitted to the other brake pedal via the connecting plate 35, so that one-side brake is prevented.

  When performing a brake turn during work, the driver first pushes down the lock lever 20 and moves to the unlock position. Then, the operation plate 55 integral with the lock lever 20 rotates toward the front side, and the lock arm 52 rotates against the urging force of the return spring 53 and separates from the locking pin 45. At the same time, the link rod 51 exceeds the fulcrum and the lock lever 20 is fixed at the unlocked position.

  When the driver depresses the connection release pedal 19 in this state, the wire 29 is pulled downward via the link plate 61. In addition, the sliding difference of the link plate 61 and the connection release pedal 19 is absorbed by the connection pin 78 sliding through the long hole 77 provided on the link plate 61. The wire 29 pulled by the depressing operation of the connection release pedal 19 pulls up the left end portion 35a of the connection plate 35 and moves the connection plate 35 to the connection release position. Therefore, the left brake pedal 17 and the right brake pedal 18 are It becomes a state that can be operated independently (disconnection state). The disconnection state is maintained as long as the driver holds the depressing operation of the disconnection pedal 19.

  When the detected body 85 integral with the connection plate 35 is separated from the connection sensor 37 by the rotation of the connection plate 35, the connection sensor 37 is in a state in which the left brake pedal 17 and the right brake pedal 18 are in the disconnected state. Is detected. This detection signal is transmitted to a warning indicator (not shown) provided on the dashboard 5 and displayed on the warning indicator so that the driver can move between the left brake pedal 17 and the right brake pedal 18. It can be confirmed that the connection of is released.

  When the brake turn is not necessary, the driver releases the left brake pedal 17 and the right brake pedal 18 and then releases the connection release pedal 19. At this time, the connection release pedal 19 returns to the neutral position by the urging force of the return spring (not shown), and the link plate 61 rotates to loosen the wire 29, so that the linking plate 35 is urged by the urging force of the return spring 88. Move from the connection release position to the connection position. As a result, the left brake pedal and the right brake pedal return to the connected state. The driver may further move the lock lever 20 to the lock position. As a result, the lock arm 52 rotates in conjunction with the lock lever 20, and the notch 52a engages with the locking pin 45 to prevent the connection release pedal 19 from rotating. can do.

  The guide portion 36a of the hook plate 36 is set to have a sufficient length in the front-rear direction. Thus, in a state where one of the left brake pedal 17 and the right brake pedal 18 is depressed, that is, in a state where the notch 36b of the hook plate 36 and the left end portion 35a of the connection plate 35 are offset in the front-rear direction, the connection plate Even if 35 is going to rotate from the connection release position to the connection position, the left end portion 35a of the connection plate 35 abuts against the guide portion 36a, so that the left end portion 35a does not fall before and after the hook plate 36. . When the stepping operation of either the left brake pedal 17 or the right brake pedal 18 is completed, the guide portion 36a automatically guides the left end portion 35a of the connection plate 35 to the notch 36b. Can be reliably engaged with the notch 36b to prevent erroneous operation.

  At the time of parking, the driver depresses the left brake pedal 17 and the right brake pedal 18 to stop the traveling machine body 4, and then keeps the left brake pedal 17 and the right brake pedal 18 depressed and moves the parking brake lever 21 to the parking position. And move. At this time, by operating the parking brake lever 21, the notch plate 56 rotates and the notch 71 and the small plate 69 are engaged with each other, whereby the left brake pedal 17 is fixed. The occlusion of the notch 71 and the small plate 69 is automatically maintained by the shape of the notch 71. Specifically, since the notch 71 is formed to be inclined rearward, the force of the small plate 69 acting on the notch 71 acts in a direction (pull-up direction) in which the parking brake lever 21 is held at the parking position. .

  When the parking brake lever 21 is moved to the parking position, the left brake pedal 17 is fixed at the depressed position as described above, and the left brake pedal 17 and the right brake pedal 18 are connected via the parking brake linkage mechanism C. Held in a state. Specifically, since the parking arm 60 rotates to the rear of the aircraft in conjunction with the parking brake lever 21 via the link 66, the arm 59 and the boss 58, the notch 60a of the parking arm 60 is engaged with the locking pin 45. Then, the rotation of the connection release pedal 19 is locked (restricted). As a result, the depressing operation of the connection release pedal 19 is prevented, and the connected state of the left brake pedal 17 and the right brake pedal 18 is maintained, so that one-side parking brake is prevented.

  In the present embodiment, the connection release mechanism A, the lock mechanism B, and the parking brake cooperation mechanism C cause the left brake pedal 17 and the right brake pedal 18 to be released from the connection state only when necessary, and in the other cases, the connection state. In addition to having a mechanism for holding the motor, it has a plurality of features that are easy to assemble, operate, and secure as described below.

  The disengagement pedal 19 is disposed substantially horizontally with the rotation shaft 43, so that the operation direction is substantially vertical, while the clutch pedal 16 is disposed substantially perpendicular to the brake pedal shaft 28, so that the operation direction is substantially front-rear. Direction. As a result, the connection release pedal 19 and the clutch pedal 16 are differentiated in the operation direction, so that an erroneous operation can be prevented and safety can be improved.

  Further, since the disengagement pedal 19 and the clutch pedal 16 are arranged on the front left side of the step floor 25, and the left brake pedal 17 and the right brake pedal 18 are arranged on the front right side of the step floor 25, the driver Normally, the left brake pedal 17 and the right brake pedal 18 can be operated with the right foot while the connection release pedal 19 is operated with the left foot. For this reason, the connection release pedal 19, the left brake pedal 17, and the right brake pedal 18 can be operated with separate feet, respectively, and erroneous operations can be reduced and safety can be improved.

  Note that the pedal portion 41 of the decoupling pedal 19 is provided in a range of +30 degrees to -30 degrees upward with respect to a straight line in the longitudinal direction of the machine body orthogonal to the rotation shaft 43, and more preferably +15 degrees upward. Provided in the range of -15 degrees. Further, the tread plate portion of the clutch pedal 16 is provided in a range of +30 degrees to -30 degrees backward with respect to a straight line perpendicular to the brake pedal shaft 28 and extending in the vertical direction, and more preferably +15 degrees to -15 backward to the body. Provided in the range of degrees. By providing the pedal portion 41 and the clutch pedal 16 as described above, the operation direction can be sufficiently differentiated, and erroneous operations can be reduced. In particular, by providing the pedal portion 41 and the clutch pedal 16 within the above-described preferable range, the operability can be improved while maintaining the degree of differentiation in the operation direction.

  Further, since the pedal portion 41 and the pedal arm 42 of the release pedal 19 are provided separately, the pedal arm 42 is passed through an I-shaped slit or the like provided in the panel rear cover 14 during assembly, and then the pedal portion 41. Can be attached. Thereby, for example, a T-shaped slit that is required when assembling a connection release pedal in which the pedal arm and the pedal portion are provided so as not to be detached from each other is unnecessary, and the number of man-hours can be reduced. Also, depending on the type of the traveling aircraft 4, a PTO lever may be disposed below the panel rear cover 14, but the I-shaped slit can be provided closer to the right end or the left end than the T-shaped slit. The connection release pedal 19 can be arranged at a position further away from the lever, which contributes to improvement in safety and operability. Furthermore, if the welding angle of the PTO lever is provided in a direction away from the connection release pedal 19, safety and operability are further improved.

  The notch 60a of the parking arm 60 is a direction in which the lock pin enters when the connection release pedal 19 is operated from the connection position to the connection release position with the notch 60a and the lock pin 45 engaged. A recess 60b (see FIG. 4 (b)) is provided in the upward direction of the machine body. For this reason, even if the connection release pedal 19 is depressed with the notch 60a engaged with the locking pin 45, the notch 60a is engaged deeper. As a result, the locking pin 45 is unintentionally released, and a single brake during parking is prevented from occurring.

  The connection release mechanism A connects the link plate 61 and the connection plate 35 in place of the wire 29, and connects the connection plate to the connection position corresponding to the connection operation position and the connection release operation position of the connection release pedal 19. Any configuration can be used as long as it is configured to move to the connection release position.

  The wire 29 and the pedal arm 42 may be directly connected to the rear side of the machine body from the rotation shaft 43 of the pedal arm 42 without using the link plate 61.

  The link plate 61 may have a connecting pin instead of the long hole 77, and the pedal arm 42 may have a long hole connected to the link plate via the connecting pin instead of the connecting pin 78.

  In the present embodiment, the connection release mechanism A, the lock mechanism B, and the parking brake cooperation mechanism C are arranged inside the panel rear cover as described above. This prevents one-side brakes that are not intended by the driver and improves safety, while considering the operability and assembly, and using the space inside the panel rear cover, It can be provided compactly, and space saving is possible.

1 Work vehicle (tractor)
4 traveling machine body 16 clutch pedal 17 left brake pedal 18 right brake pedal 19 connection release pedal 29 connecting member (wire)
35 connector (connection plate)
41 Pedal part 42 Pedal arm 43 Rotating shaft 61 Link member (link plate)
63 Connecting member side connection part (connection pin)
76 Support shaft 77 Pedal side connection (long hole)
A Connection release mechanism

Claims (3)

A clutch pedal supported by the traveling machine body and operated substantially in the front-rear direction;
A left brake pedal and a right brake pedal,
A coupling device provided movably between a coupling position for coupling the left brake pedal and the right brake pedal and a coupling release position for independently operating the left brake pedal and the right brake pedal;
In a work vehicle comprising a connection release mechanism capable of switching the connection tool between the connection position and the connection release position,
The connection release mechanism includes a rotation shaft supported by the traveling machine body,
A connection release pedal that is supported by the pivot shaft so as to be pivotable up and down, and that is provided with a pedal at the tip.
A connecting member that connects the connection release pedal and the connector;
The pedal portion is arranged substantially horizontally with the pivot shaft when the connector is in the connection position.
A working vehicle characterized by that. It has a driver's seat where workers can sit,
The left brake pedal and the right brake pedal are arranged together on the front right side of the driver seat,
The clutch pedal and the pedal portion are collectively arranged on the front left side of the driver seat.
The work vehicle according to claim 1. The connection release mechanism includes a support shaft supported by the traveling machine body,
A link member provided on the support shaft so as to be rotatable, and having a pedal side connection portion connected to the connection release pedal and a connection member side connection portion connected to the connection member;
The distance from the support shaft to the pedal side connection portion is set shorter than the distance from the support shaft to the connecting member side connection portion,
The work vehicle according to claim 1 or 2.

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