Operation mechanism and work vehicle

Abstract

To provide a manipulation mechanism that, when a manipulation performed on a manipulator is transmitted, can convert the direction of swing despite a simple construction.SOLUTION: A manipulation mechanism includes a first swing member 32 capable of swinging with a lower first swing shaft 32b as a center, a second swing member 37 capable of swinging with a lower second swing shaft 38, which is disposed perpendicularly to the lower first swing shaft 32b, as a center, a rod end 36 fixed to the first swing member 32, a coupling rod 39 whose shaft-like part 39b is fixed to the second swing member 37 and disposed in such a manner that an axial direction is aligned with a direction oblique to the lower second swing shaft 38, and whose shaft-like part 39b is coupled to the rod end 36 in a slidable manner, and a loader lever 20 coupled to either the first swing member 32 or second swing member 37.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a technique for an operating mechanism and a work vehicle equipped with an operating mechanism. [Background technology]

[0002] Conventionally, technology regarding an operating mechanism for operating a work vehicle is publicly known, as described in Patent Document 1, for example.

[0003] Patent Document 1 discloses an operating mechanism for operating a front loader. The operating mechanism described in Patent Document 1 transmits the operating force of a loader lever to a push-pull wire. The operating mechanism converts the forward / backward and left / right swinging operation of the loader lever into up / down movement of the push-pull wire using multiple links (a link for forward / backward tilting and a link for left / right tilting).

[0004] Here, in the operating mechanism as described above, depending on the relationship between the operating direction of the loader lever and the operating direction of the push-pull wire (for example, when converting the left and right swinging operation of the loader lever into forward and backward movement of the push-pull wire), a complex link mechanism may be required to convert the operating direction of the loader lever, which could complicate the structure. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2017-91061 A Summary of the Invention [Problem to be solved by the invention]

[0006] One aspect of the present disclosure has been made in consideration of the above-described situation, and the problem it aims to solve is to provide an operating mechanism and work vehicle that are capable of changing the direction of oscillation with a simple configuration when transmitting the operation of an operating tool. [Means for solving the problem]

[0007] The problem to be solved by one embodiment of the present disclosure has been described above. Next, the means for solving this problem will be described.

[0008] In one aspect of the present disclosure, the device comprises a first oscillating member capable of swinging around a first oscillating axis, a second oscillating member capable of swinging around a second oscillating axis arranged in a direction perpendicular to the first oscillating axis, a first connecting member fixed to the first oscillating member, a second connecting member fixed to the second oscillating member and comprising an axial portion arranged with its axial direction oriented inclined relative to the second oscillating axis, the axial portion being slidably connected to the first connecting member, and an operating tool connected to either the first oscillating member or the second oscillating member. According to one aspect of the present disclosure, when transmitting an operation of an operating tool, the direction of oscillation can be changed with a simple configuration.

[0009] In one aspect of the present disclosure, the first oscillating shaft is disposed so as to extend along the fore-and-aft direction of the vehicle body, and the second oscillating shaft is disposed so as to extend along the left-right direction of the vehicle body. According to one aspect of the present disclosure, when transmitting an operation of an operating tool, the direction of oscillation can be changed with a simple configuration.

[0010] In one aspect of the present disclosure, the vehicle further includes a support portion that supports a cable that transmits an operation of the operating tool so as to extend along the fore-and-aft direction of the vehicle body. According to one aspect of the present disclosure, the cable can be arranged to extend in the fore-and-aft direction of the vehicle body, and the cable can be arranged while avoiding interference between the cable and components below the operating mechanism, for example.

[0011] In one aspect of the present disclosure, the first oscillation axis and the second oscillation axis are disposed at the same position in a direction perpendicular to the first oscillation axis and the second oscillation axis. According to one aspect of the present disclosure, the operating mechanism can be configured to be compact.

[0012] In one aspect of the present disclosure, the device further includes a support member that supports the first oscillating member via the first oscillating shaft and supports the second oscillating member via the second oscillating shaft. According to one aspect of the present disclosure, it is possible to facilitate management and installation of parts.

[0013] In one aspect of the present disclosure, the support member is formed with a support portion that supports a cable that is connected to the other of the first oscillating member or the second oscillating member and transmits the operation of the operating tool. According to one aspect of the present disclosure, a support member may be utilized to position the cables.

[0014] In one aspect of the present disclosure, the support member further includes a restricting member that is provided to the support member and restricts the pivoting of at least one of the first pivoting member and the second pivoting member at a predetermined position. According to one aspect of the present disclosure, the swing operation of the operating tool can be appropriately restricted, thereby improving operability.

[0015] In one aspect of the present disclosure, the work vehicle includes an adjustable seat and the operating mechanism, the operating mechanism being configured to move integrally with the seat. According to one aspect of the present disclosure, it is possible to prevent the operability of the operation mechanism from decreasing.

[0016] In one aspect of the present disclosure, the seat is adjustable in its fore-aft position, the operating mechanism is positioned forward of an armrest provided on the seat, and a cable that transmits operation of the operating device is connected to the operating mechanism, the cable being arranged to extend rearward from the operating mechanism and bent forward at its midpoint. According to one aspect of the present disclosure, an increase in the sliding resistance of the cable can be suppressed.

[0017] In one aspect of the present disclosure, the seat cushion further includes an armrest whose position relative to the operating mechanism is adjustable. According to one aspect of the present disclosure, the position of the armrest relative to the operating mechanism can be adjusted, thereby improving the operability of the operating mechanism. Effect of the Invention

[0018] According to one aspect of the present disclosure, when transmitting an operation of an operating tool, the direction of oscillation can be changed with a simple configuration. [Brief description of the drawings]

[0019] [Figure 1] 1 is a side view showing an overall configuration of a tractor according to an embodiment of the present invention; [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] Also, side view. [Figure 6] Also, front view. [Figure 7] Similarly, a partial cross-sectional plan view. [Figure 8] Cross section AA. [Figure 9] B-B cross section. [Figure 10] CC cross section. [Figure 11] FIG. 4 is an enlarged perspective view showing a rod end and a second swing member. [Figure 12] 13 is a side view showing how the lever body and the insertion portion swing back and forth. FIG. [Figure 13] FIG. 4 is a perspective view showing how the rod end and the second swinging member swing. [Figure 14] FIG. 13 is a perspective view showing the movement directions of various members when the loader lever is swung leftward. [Figure 15]FIG. 4 is a side view showing the movement direction of the seat, the armrest and the movable member. [Figure 16] FIG. [Figure 17] FIG. [Figure 18] FIG. [Figure 19] FIG. 13 is a perspective view showing the movable member moved forward. [Figure 20] FIG. 13 is an enlarged perspective view showing the guide mechanism that guides the movable member forward. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] In the following, the directions indicated by arrows U, D, F, B, L, and R in the figure are defined as upward, downward, forward, backward, leftward, and rightward, respectively, based on the body of the tractor 1.

[0021] Hereinafter, a tractor 1 according to one embodiment of the present invention will be described with reference to FIGS.

[0022] The tractor 1 mainly comprises a machine frame 2, an engine 3, a transmission case 4, front wheels 5, rear wheels 6, a bonnet 7, a cabin 8, a steering wheel 9, and a front loader 10.

[0023] The vehicle frame 2 shown in FIG. 1 is a frame-like member formed by appropriately combining a number of plate materials. The vehicle frame 2 is formed in a generally rectangular shape when viewed from above. The vehicle frame 2 is disposed with its longitudinal direction oriented in the front-to-rear direction. An engine 3 is fixed to the rear of the vehicle frame 2. A transmission case 4 is fixed to the rear of the engine 3. The front of the vehicle frame 2 is supported by a pair of left and right front wheels 5 via a front axle mechanism (not shown). The rear of the transmission case 4 is supported by a pair of left and right rear wheels 6 via a rear axle mechanism (not shown). The engine 3 is covered by a bonnet 7.

[0024] The power of the engine 3 is changed in speed by a transmission (not shown) housed in a transmission case 4, and then can be transmitted to front wheels 5 via the front axle mechanism, and can be transmitted to rear wheels 6 via the rear axle mechanism. The front wheels 5 and rear wheels 6 are rotated by the power of the engine 3, allowing the tractor 1 to travel.

[0025] A cabin 8 is provided behind the engine 3. Inside the cabin 8, a riding section 8a is formed where an operator rides. A bottom 8b (see FIG. 2) forming the bottom surface of the cabin 8 is formed in a stepped shape such that a portion where a seat 16 is installed is higher than a portion where the feet of the work vehicle are placed. A steering wheel 9 for adjusting the turning angle of the front wheels 5 and various operating tools are arranged in the riding section 8a. As shown in FIG. 2, the riding section 8a is provided with a seat 16 for the operator to sit on, an armrest 17 for the operator to rest his elbows, and the like. The armrests 17 are provided on both the left and right sides of the seat 16. A loader lever 20 for operating the front loader 10 is provided in front of the right armrest 17.

[0026] A front loader 10 is attached to the front of a tractor 1 shown in Fig. 1. The front loader 10 includes a boom 11, a bucket 12, a boom cylinder 13, a bucket cylinder 14, and a valve 15 (see Fig. 2).

[0027] The boom 11 is disposed so as to extend downward and forward. The bucket 12 is detachably connected to the front end of the boom 11. A valve 15 shown in FIG. 2 is configured to be able to supply hydraulic pressure to the boom cylinder 13 and the bucket cylinder 14. The valve 15 is disposed below the riding section 8a. The boom 11 shown in FIG. 1 can be rotated relative to the vehicle body by the boom cylinder 13 being extended and retracted by hydraulic pressure from the valve 15. The bucket 12 can be rotated relative to the boom 11 by the bucket cylinder 14 being extended and retracted by hydraulic pressure from the valve 15. In this way, work such as transporting soil and sand can be performed while appropriately rotating the boom 11 and the bucket 12.

[0028] 2 to 14, the loader lever 20 and the configurations of various members for transmitting the operating force of the loader lever 20 to the valve 15 will be described below. Specifically, the loader lever 20, the operating mechanism 30, the first cable 40, and the second cable 50 will be described.

[0029] 2 to 11 show the loader lever 20, the operation mechanism 30, the first cable 40, and the second cable 50 in a state where they are moved to the neutral position. In the following, the configuration of the loader lever 20, etc. will be described on the assumption that the loader lever 20 is in the neutral position.

[0030] The loader lever 20 is disposed above and rearward of the valve 15 across the bottom 8b of the cabin 8. As shown in Fig. 3 and Fig. 4, the loader lever 20 includes a lever body 21 and an insertion portion 22. The lever body 21 is formed so as to extend substantially downward from a grip (upper end portion) that is held by an operator.

[0031] The insertion portion 22 is a portion through which an upper swing shaft 33 of the operation mechanism 30, which will be described later, is inserted. The insertion portion 22 is formed in a generally rectangular parallelepiped shape with its longitudinal direction facing the up-down direction. The lever main body 21 is fixed to the upper surface of the insertion portion 22. A first cable 40 is connected to the lower end of the insertion portion 22 (see FIG. 9, etc.). In addition, a second cable 50 is also connected to the insertion portion 22 via the operation mechanism 30.

[0032] The operation mechanism 30 shown in Figures 4 to 6 is for transmitting the swing operation of the loader lever 20 in the front-rear and left-right directions to the first cable 40 and the second cable 50. The operation mechanism 30 is provided at the lower end of the loader lever 20. As described later, the operation mechanism 30 converts the swing operation of the loader lever 20 into reciprocating motion in the front-rear directions of the first cable 40 and the second cable 50. The operation mechanism 30 includes a support member 31, a first swing member 32, an upper swing shaft 33, a bolt 34, a restricting member 35, a rod end 36, a second swing member 37, a lower second swing shaft 38, and a connecting rod 39.

[0033] The support member 31 is for supporting a first swinging member 32 and a second swinging member 37, which will be described later. The support member 31 is formed by appropriately bending a substantially plate-shaped member. The support member 31 is fixed to the vehicle body via bolts, nuts, and the like. As shown in Figs. 4, 5, and 7, the support member 31 includes a front wall portion 31a, a pair of left and right walls 31b and 31c formed to sandwich the front wall portion 31a, a bottom portion 31d forming a bottom surface, a boss portion 31e formed on the front wall portion 31a, and a cable support portion 31f fixed to the rear portion of the left wall portion 31b.

[0034] The right wall portion 31c is formed so as to have a shorter front-rear width than the left wall portion 31b. The boss portion 31e is formed in a generally cylindrical shape with its axis oriented in the front-rear direction. As shown in Figs. 5 and 7, the boss portion 31e is formed so as to protrude forward from the front wall portion 31a. The cable support portion 31f is formed at the rear of the support member 31. The cable support portion 31f is formed so as to extend upward from the bottom portion 31d, and is formed so that the first cable 40 and the second cable 50 can be inserted therethrough.

[0035] The first swing member 32 is a member that swings left and right in response to a left and right swing operation of the loader lever 20. The first swing member 32 is formed by appropriately combining approximately plate-shaped members. As shown in Figures 4, 7 and 9, the first swing member 32 has a first mounting portion 32a and a second mounting portion 32c.

[0036] The first mounting portion 32a is a portion to which the loader lever 20 is attached. The first mounting portion 32a is formed in a substantially U-shape with an opening toward the rear in a plan view. A lower portion of the first mounting portion 32a is disposed inside the support member 31. The insertion portion 22 of the loader lever 20 is disposed inside the first mounting portion 32a.

[0037] As shown in FIG. 10, the first mounting portion 32a is formed with a lower first swing shaft 32b extending forward. The lower first swing shaft 32b is formed in a substantially cylindrical shape with an axis D32b facing the front-rear direction. The lower first swing shaft 32b is located in front of and below the upper swing shaft 33 (see FIG. 5). The lower first swing shaft 32b is inserted into the boss portion 31e of the support member 31. This allows the first swing member 32 to swing left and right relative to the support member 31 but not to swing forward and backward. This also allows the loader lever 20 (see FIG. 4) to swing left and right around the lower first swing shaft 32b.

[0038] The second mounting portion 32c shown in Fig. 4 and Fig. 9 is a portion to which a rod end 36, which will be described later, is attached. The second mounting portion 32c is formed on the right side surface of the first mounting portion 32a. The second mounting portion 32c is located rearward of the right wall portion 31c of the support member 31 (see Fig. 10). The second mounting portion 32c includes a pair of front and rear walls, 32d and 32e, and is formed in a substantially U-shape that opens upward in side view. This allows the strength of the second mounting portion 32c to be relatively high.

[0039] 9, the upper surface of the front wall 32d of the second mounting portion 32c is formed to be inclined downward to the right. The vertical width of the rear wall 32e of the second mounting portion 32c is shorter than the vertical width of the front wall 32d (upper end portion). With this configuration, it is possible to prevent the second swinging member 37 and the like from contacting the first swinging member 32 when the second swinging member 37 and the connecting rod 39 described later swing.

[0040] As shown in Figures 4 and 9, a notch 32f is formed at the right end of the rear wall 32e of the second mounting portion 32c. When attaching the rod end 36 to the second mounting portion 32c, an operator can use a tool such as a wrench by utilizing the space of the notch 32f. This makes it easy to attach the rod end 36 to the second mounting portion 32c.

[0041] The upper swing shaft 33 shown in Figs. 4, 7 and 8 is for supporting the loader lever 20 so as to be swingable in the front-rear direction. The upper swing shaft 33 is disposed with its axis oriented in the left-right direction. In this embodiment, a bolt longer than the left-right width of the first mounting portion 32a is used as the upper swing shaft 33. The upper swing shaft 33 is inserted into the first mounting portion 32a of the first swing member 32 and the insertion portion 22 of the loader lever 20. As a result, the upper swing shaft 33 supports the loader lever 20 so as to be swingable in the front-rear direction. When one point (virtual point) on the loader lever 20 is focused on, the virtual point moves on a first virtual plane P1 oriented in a direction perpendicular to the axis (left-right direction) of the upper swing shaft 33 when the loader lever 20 swings about the upper swing shaft 33 (see Fig. 12).

[0042] 10 is for preventing the lower first oscillation shaft 32b of the first oscillation member 32 from coming off the boss portion 31e of the support member 31. The bolt 34 is fastened to the lower first oscillation shaft 32b.

[0043] 5 and 6 is for restricting the swinging of the first swinging member 32 at a predetermined position. The restricting member 35 includes a first restricting member 35a and a second restricting member 35b.

[0044] The first stop member 35a is for restricting the rightward swing of the first swing member 32. As shown in Fig. 8, the first stop member 35a is constituted by a bolt and a nut attached to the right wall portion 31c of the support member 31. The first stop member 35a is provided such that the shaft portion of the bolt protrudes from the right wall portion 31c toward the inside of the support member 31. When the first swing member 32 is swung to the right by a predetermined angle, the first stop member 35a comes into contact with the first attachment portion 32a.

[0045] This enables the first stop member 35a to restrict excessive rightward swing of the first swing member 32, thereby improving the operability of the loader lever 20. In addition, in this embodiment, by adjusting the protruding width of the bolt from the right wall portion 31c, the angle at which the first swing member 32 abuts against the first stop member 35a can be easily adjusted.

[0046] 5 and 9 is for restricting the leftward swing of the first swing member 32. The second swing member 35b is constituted by a bolt and a nut attached to the bottom portion 31d of the support member 31. The second swing member 35b is provided such that the shaft portion of the bolt extends from the bottom portion 31d to the inside of the support member 31. When the first swing member 32 is swung to the left by a predetermined angle, the first swing member 32 abuts against the first mounting portion 32a.

[0047] This enables the second stop member 35b to restrict excessive leftward swing of the first swing member 32, thereby improving the operability of the loader lever 20. In addition, in this embodiment, by adjusting the protruding width of the bolt from the bottom portion 31d, the angle at which the first swing member 32 abuts against the second stop member 35b can be easily adjusted.

[0048] The rod end 36 shown in Figures 9 to 11 is a member that swings in response to the swinging operation of the loader lever 20 in the left-right direction. Note that the first cable 40 and the second cable 50 are omitted in Figure 11. The rod end 36 is fixed to the second mounting portion 32c of the first swing member 32. The rod end 36 is formed so as to extend upward from the second mounting portion 32c. The rod end 36 includes an outer ring 36a and an inner ring 36b.

[0049] The outer ring 36a is a portion that supports the inner ring 36b so that it can roll. The outer ring 36a is formed in a substantially circular ring shape. The outer ring 36a is formed at the upper end of the rod end 36. The inner ring 36b is a substantially spherical portion into which a connecting rod 39 (described later) can be inserted. The inner ring 36b is housed inside the outer ring 36a. The outer ring 36a and the inner ring 36b are disposed at the same height as the lower first oscillation shaft 32b (see FIG. 5).

[0050] When the first swing member 32 swings in the left-right direction, the rod end 36 swings about the lower first swing shaft 32b. At this time, the rod end 36 moves on a second imaginary plane P2 that is oriented in a direction perpendicular to the axis D32b (front-rear direction) of the lower first swing shaft 32b (see FIG. 13).

[0051] 8, 10, and 11 is a member that can swing about a lower second swing shaft 38, which will be described later. The second swing member 37 is attached to the right wall portion 31c of the support member 31 via the lower second swing shaft 38, and is disposed forward of the rod end 36. The second swing member 37 includes an insertion portion 37a, an extension portion 37b, and a plate-shaped portion 37c.

[0052] The insertion portion 37a is a portion through which the lower second swing shaft 38 is inserted. The insertion portion 37a is formed in a cylindrical shape with an axial direction oriented in the left-right direction. The extension portion 37b is formed so as to extend upward from the top of the insertion portion 37a. The extension portion 37b is formed in a cylindrical shape with an axial direction oriented in the up-down direction. The second cable 50 is connected to the extension portion 37b. The plate-shaped portion 37c is a portion to which the connecting rod 39 is fixed. The plate-shaped portion 37c is formed in a flat plate shape and is arranged parallel to the axial direction of the extension portion 37b. The plate-shaped portion 37c is formed so as to protrude from the extension portion 37b to the right rear. The plate-shaped portion 37c is also formed so as to face the upper end portion of the rod end 36.

[0053] The lower second rocking shaft 38 is for supporting the second rocking member 37 so that it can rock. The lower second rocking shaft 38 is arranged with its axis D38 facing the left-right direction (perpendicular to the lower first rocking shaft 32b). The lower second rocking shaft 38 is also arranged at the same height as the lower first rocking shaft 32b (see FIG. 5). This prevents the vertical width of the operation mechanism 30 from increasing, and the operation mechanism 30 can be made smaller. In this embodiment, the lower second rocking shaft 38 is formed by a bolt. The lower second rocking shaft 38 is inserted into the right wall portion 31c of the support member 31 and the insertion portion 37a of the second rocking member 37. The lower second rocking shaft 38 thus supports the second rocking member 37 so that it can rock. Focusing on one point (imaginary point) on the second swing member 37, the imaginary point moves on an imaginary plane oriented in a direction perpendicular to the axis D38 (left-right direction) of the lower second swing shaft 38 when the second swing member 37 swings about the lower second swing shaft 38 (see FIG. 13). Since the imaginary plane is parallel to the first imaginary plane P1 (see FIG. 12) of the loader lever 20 described above, hereinafter, for convenience, the second swing member 37 will also be referred to as the first imaginary plane P1.

[0054] 10 and 11 is for connecting the first swinging member 32 and the second swinging member 37 via the rod end 36. The connecting rod 39 is formed in an elongated shape that extends leftward as it moves rearward. The connecting rod 39 has a fixed portion 39a and a shaft-shaped portion 39b.

[0055] The fixing portion 39a is formed on the right front end portion of the connecting rod 39. The fixing portion 39a shown in FIG. 10 is inserted into the plate-shaped portion 37c of the second swinging member 37. The fixing portion 39a is fixed to the plate-shaped portion 37c of the second swinging member 37 by fastening a nut N to the insertion portion.

[0056] The shaft-shaped portion 39b is formed so as to extend from the fixed portion 39a to the left rear. The shaft-shaped portion 39b is inclined with respect to the axis D38 (left-right direction) of the lower second oscillating shaft 38. More specifically, the shaft-shaped portion 39b is arranged so as to be non-parallel to the axis D38 of the lower second oscillating shaft 38. The shaft-shaped portion 39b is also arranged so as to be inclined with respect to a plane perpendicular to the axis D38 of the lower second oscillating shaft 38. That is, the shaft-shaped portion 39b is inclined within an angle range in which the angle (acute angle) formed with respect to the direction of the axis D38 of the lower second oscillating shaft 38 is greater than 0 degrees and less than 90 degrees. The shaft-shaped portion 39b is inserted into the inner ring 36b of the rod end 36. As a result, the shaft-shaped portion 39b is configured to be slidable with respect to the rod end 36 along the axis D39.

[0057] The operation mechanism 30 may be provided with a lever lock mechanism (not shown) that physically restricts the swing of the loader lever 20 and disables operation of the loader lever 20. The lever lock mechanism may be configured to restrict the swing of the loader lever 20 by, for example, passing a rod-shaped member (such as a pin) through the insertion portion 22, the support member 31, the first swing member 32, etc. By restricting the swing of the loader lever 20 with the lever lock mechanism, it is possible to prevent the valve 15 from being operated due to erroneous operation caused by unintended contact with the loader lever 20, etc. The specific configuration of the lever lock mechanism is not particularly limited.

[0058] 2 and 5 is for transmitting the forward / rearward swing operation of the loader lever 20 to the valve 15. The first cable 40 is formed in a longitudinal (linear) shape and has flexibility. As shown in FIG. 5, the first cable 40 includes an outer cable 41 and an inner cable 42.

[0059] The outer cable 41 is formed so as to cover the inner cable 42. One end of the outer cable 41 is fixed to a cable support portion 31f of the support member 31 via a nut. The outer cable 41 is supported by the cable support portion 31f so as to extend along the front-rear direction. The other end of the outer cable 41 is fixed to the vehicle body near the valve 15 shown in FIG. 2.

[0060] One end of the inner cable 42 shown in Fig. 5 protrudes forward from one end of the outer cable 41 and is rotatably connected to the underside of the insertion portion 22 of the loader lever 20 (see Fig. 9, etc.). The other end of the inner cable 42 protrudes forward from the other end of the outer cable 41 and is connected to the valve 15 shown in Fig. 2. The inner cable 42 moves in the front-rear direction as the insertion portion 22 swings forward-rear, and slides relative to the outer cable 41.

[0061] The second cable 50 is for transmitting the left-right swing operation of the loader lever 20 to the valve 15. The second cable 50 is formed in a longitudinal (linear) shape and has flexibility. As shown in FIG. 5, the second cable 50 includes an outer cable 51 and an inner cable 52.

[0062] The outer cable 51 is formed to cover the inner cable 52. The outer cable 51 is fixed to the vicinity of the valve 15 and to the cable support portion 31f, similar to the first cable 40. The outer cable 51 is supported by the cable support portion 31f so as to extend along the front-rear direction. One end of the inner cable 52 protrudes forward from one end of the outer cable 51 and is rotatably connected to the extension portion 37b of the second swing member 37. The other end of the inner cable 52 protrudes forward from the other end of the outer cable 51 and is connected to the valve 15 shown in FIG. 2. The inner cable 52 is moved in the front-rear direction in association with the swing of the second swing member 37, and slides relative to the outer cable 51.

[0063] 2, the first cable 40 and the second cable 50 are arranged so as to bend in a substantially U-shape that opens forward in a side view. More specifically, the first cable 40 and the second cable 50 extend substantially rearward from the lower end of the loader lever 20, and are arranged so that their middle portions are bent downward in the riding section 8a. The middle portions of the first cable 40 and the second cable 50 are guided below the bottom portion 8b of the riding section 8a via a movable member 70, which will be described later. The first cable 40 and the second cable 50 also extend forward below the riding section 8a.

[0064] In this embodiment, the swing operation of the loader lever 20 is converted into forward and backward movement of the inner cables 42 and 51 by the operation mechanism 30. This operates the valve 15 and operates the front loader 10. A specific description will be given below.

[0065] First, with reference to Fig. 12, a flow will be described in which the forward / rearward swing operation of the loader lever 20 is converted into the forward / rearward movement of the inner cable 42. Note that Fig. 12 omits illustration of some members (such as the second swing member 37 and the connecting rod 39) that are not related to the forward / rearward swing operation of the loader lever 20.

[0066] When the lever body 21 of the loader lever 20 is swung in the front-rear direction, the insertion portion 22 is swung in the front-rear direction about the upper swing shaft 33. In association with this swing, the inner cable 42 connected to the lower end of the insertion portion 22 is moved forward and backward. In this way, the front-rear swing operation of the loader lever 20 can be converted into the front-rear movement of the inner cable 42, and the valve 15 can be operated.

[0067] As described above, the lever body 21 to which the operating force is input and the insertion portion 22 that outputs the operating force to the first cable 40 each move on the first imaginary plane P1 during pivoting. When the lever body 21 and the insertion portion 22 move on the same plane in this way, the operating force can be converted with a simple configuration, such as by directly connecting the lever body 21 and the insertion portion 22.

[0068] Next, a process in which the left-right swing operation of the loader lever 20 is converted into the front-rear movement of the inner cable 52 will be described.

[0069] When the lever body 21 of the loader lever 20 shown in Fig. 3 is swung left and right, the insertion portion 22 and the first swing member 32 are swung about the lower first swing shaft 32b shown in Fig. 5. In conjunction with the swing, the rod end 36 is also swung about the lower first swing shaft 32b.

[0070] As described above, the rod end 36 moves in the circumferential direction centered on the axis D32b of the lower first swing shaft 32b on the second imaginary plane P2 shown in Fig. 13 when swinging. In contrast, the second swing member 37 moves in the circumferential direction centered on the axis D38 of the lower second swing shaft 38 on the first imaginary plane P1 facing a direction perpendicular to the second imaginary plane P2 (left-right direction) when swinging. In this configuration, the rod end 36 displaces left and right relative to the second swing member 37 when swinging, and the second swing member 37 displaces front and rear relative to the rod end 36 when swinging. If multiple link mechanisms are provided to absorb this front-rear and left-right displacement, the structure may become complicated.

[0071] In this embodiment, the structure can be simplified by providing a connecting rod 39 that is slidable relative to the rod end 36. In the following, an example will be described in which the loader lever 20 is swung leftward.

[0072] As shown by the arrow A1 in Fig. 14, when the loader lever 20 is swung leftward, the rod end 36 is swung upward and leftward (counterclockwise as viewed from the rear). At this time, the second swing member 37 is pressed by the rod end 36 via the connecting rod 39.

[0073] By the pressure of the rod end 36, the second swinging member 37 tries to swing in the clockwise direction as viewed from the right side, as shown by the arrow A2 in Fig. 14, about the lower second swinging shaft 38. As a result, the connecting rod 39 is swung forward and upward (in the clockwise direction as viewed from the right side, as shown by the arrow A2 in Fig. 14) about the lower second swinging shaft 38 while sliding toward the axis D39 (to the right front as shown by the arrow A3 in Fig. 14) relative to the inner ring 36b. By the connecting rod 39 sliding in the oblique direction in this manner, the second swinging member 37 can be swung while absorbing the left-right and front-rear displacements of the rod end 36 and the second swinging member 37.

[0074] Furthermore, the inner ring 36b of the rod end 36 rolls relative to the outer ring 36a in accordance with the rocking of the rod end 36 and the second rocking member 37. This makes it possible to absorb changes in the orientation of the connecting rod 39 relative to the rod end 36.

[0075] 14, the extension portion 37b is swung substantially forward by the swing of the second swing member 37, and the second cable 50 (the inner cable 52) is pulled forward. In this way, the left swing operation of the loader lever 20 is converted into the forward movement of the second cable 50.

[0076] Thus, in this embodiment, even when the rod end 36 and the second swinging member 37 move on different planes (the second imaginary plane P2 and the first imaginary plane P1) when swinging, by sliding the connecting rod 39 whose axis D39 is inclined relative to the lower second swing shaft 38, it is possible to convert the leftward swing of the loader lever 20 into the forward movement of the second cable 50 with a simple configuration. This makes it possible to suppress an increase in the number of link mechanisms (link fulcrums), thereby suppressing an increase in rattle and preventing a deterioration in the operational feel, and allowing the loader lever 20 to be operated with a light force. It is also possible to suppress an increase in the number of parts and reduce costs.

[0077] In addition, when the loader lever 20 is swung to the right, the operating mechanism 30 operates in substantially the same manner as a swing operation to the left, and can convert the swing operation of the loader lever 20 into a swing of the second swing member 37 (rearward movement of the second cable 50).

[0078] More specifically, when the loader lever 20 is swung to the right, the rod end 36 and the second swing member 37 are swung in the opposite direction to when the loader lever 20 is swung to the left (see the dashed arrow in FIG. 14).

[0079] In this embodiment, the connecting rod 39 is configured to slide in the same direction relative to the rod end 36 regardless of whether the loader lever 20 is swung left or right from the neutral position (see the solid and dashed arrows A3 in FIG. 14). With this configuration, the movable range (sliding range) of the connecting rod 39 can be narrowed, making it possible to reduce the size of the component.

[0080] In this embodiment, various members of the operation mechanism 30 (such as the first swing member 32) are connected directly or indirectly to the support member 31. This allows the operation mechanism 30 to be integrally formed via the support member 31, so that the operation mechanism 30 can be attached to the vehicle body collectively, improving the ease of assembly.

[0081] The relationship between the seat 16, the armrest 17, the loader lever 20, and the operating mechanism 30 will be described below with reference to FIGS.

[0082] The seat 16 is configured so that its front-rear position can be adjusted with respect to the bottom 8b of the riding section 8a, as shown by the arrow D1 in Fig. 15. The loader lever 20 and the operation mechanism 30 are fixed to the seat 16 and configured to move forward and backward integrally with the seat 16. With this configuration, the relative positional relationship between the seat 16 and the loader lever 20 can be maintained, so that it is possible to prevent the distance between the operator and the loader lever 20 from changing due to adjustment of the position of the seat 16, and therefore it is possible to prevent a decrease in the operability of the loader lever 20.

[0083] The armrest 17 is also configured so that its vertical position can be adjusted with respect to the seat 16, as shown by the arrow D2 in Fig. 15. When the position of the armrest 17 is adjusted, it moves relative to the loader lever 20 and the operation mechanism 30. With this configuration, the distance from the armrest 17 to the loader lever 20 can be adjusted according to the physique of the worker (such as the length of the arms), improving the operability of the loader lever 20.

[0084] When the loader lever 20 moves in accordance with the movement of the seat 16, the first cable 40 and the second cable 50 connected to the loader lever 20 also move in the front-rear direction. In this embodiment, a plate-like member 60, a movable member 70, and a guide mechanism 80 (see FIG. 16) are provided to prevent the first cable 40 and the second cable 50 from being forcibly deformed by this movement. A detailed description will be given below. In the following, the first cable 40 and the second cable 50 will be collectively referred to as "cables 40, 50."

[0085] 16 is a member forming a part of the bottom portion 8b on which the seat 16 is installed. The plate-shaped member 60 is fixed to the vehicle body. The plate-shaped member 60 includes a plate portion 61, a notch portion 62, a rear extension portion 63, and a front extension portion 64.

[0086] The plate portion 61 is a portion that is disposed with its plate surface facing up and down. The plate-shaped member 60 is formed by partially bending an end portion of the plate portion 61. The notch portion 62 is formed in the middle of the front-rear direction at the right end portion of the plate portion 61. The notch portion 62 is formed to have a front-rear width that is approximately the same as the movable range of the seat 16, for example.

[0087] The rear extending portion 63 is a portion that extends upward from the plate portion 61 behind the cutout portion 62. The rear extending portion 63 is disposed with the plate surface facing in the left-right direction. A long hole extending in the front-rear direction is formed in the rear extending portion 63. The rear extending portion 63 is formed so as to be adjacent to the cutout portion 62.

[0088] The front extension 64 is a portion that extends upward from the plate portion 61 in front of the cutout portion 62. The front extension 64 is disposed such that the plate surface faces in an oblique direction (a direction inclined left and right with respect to the front-rear direction). The front extension 64 is formed so as to be adjacent to the cutout portion 62.

[0089] The movable member 70 is a member that is movable relative to the plate-like member 60. As shown in FIG.

[0090] The plate portion 71 is a portion disposed with its plate surface facing up and down. The movable member 70 is formed by partially bending an end portion of the plate portion 71. An insertion hole 71a is formed in the plate portion 71. The insertion hole 71a is formed so as to vertically penetrate the front and rear midpoints of the plate portion 71. The insertion hole 71a is formed in a substantially circular shape in a plan view. The cables 40 and 50 are inserted through the insertion hole 71a (see FIG. 16).

[0091] The first extension portion 72 is a portion extending downward from the left rear portion of the plate portion 71. The first extension portion 72 is arranged with its plate surface facing in the left-right direction. The second extension portion 73 is a portion extending upward from the right rear portion of the plate portion 71. The second extension portion 73 is arranged with its plate surface facing in the left-right direction. The first extension portion 72 and the second extension portion 73 are formed rearward of the insertion hole 71a. The third extension portion 74 is a portion extending upward from the right front portion of the plate portion 71. The third extension portion 74 is arranged with its plate surface facing in the same direction as the front extension portion 64 of the plate-shaped member 60 (see Figure 16). The third extension portion 74 is formed forward of the insertion hole 71a.

[0092] 16 and 17 is for guiding the movement of the movable member 70. The guide mechanism 80 includes a roller 81 and a guide portion 82.

[0093] The rollers 81 are rotatably provided on the movable member 70. As shown in Fig. 18, the rollers 81 are provided on the left side surfaces of the second extending portion 73 and the first extending portion 72. The rollers 81 are provided on the rear end portion of the second extending portion 73 and on the front end portion and rear end portion of the first extending portion 72. Hereinafter, the rollers 81 provided on the second extending portion 73 will be referred to as the "upper roller 81", and the rollers 81 provided on the first extending portion 72 will be referred to as the "lower roller 81".

[0094] 16 and 17 is a portion that guides the upper and lower rollers 81. The guide portion 82 that guides the upper roller 81 is formed by the rear extension portion 63 of the plate-shaped member 60. The guide portion 82 that guides the lower roller 81 is formed by a substantially L-shaped mounting member 82a that is fixed to the lower surface of the plate-shaped member 60. The mounting member 82a has a long hole that extends in the front-rear direction.

[0095] The upper roller 81 is fitted into the upper guide portion 82. The lower roller 81 is fitted into the lower guide portion 82. As a result, the guide mechanisms 80 (rollers 81 and guide portion 82) are provided above and below the plate portion 61 of the plate-shaped member 60, sandwiching the plate portion 61. The movable member 70 is provided on the vehicle body via the guide mechanism 80 and the plate-shaped member 60, and can move forward and backward relative to the plate-shaped member 60 by rotation of the rollers 81. Note that FIGS. 16 and 17 show the movable member 70 moved to the rearmost position.

[0096] 16, the plate portion 71 of the movable member 70 is provided so as to cover the cutout portion 62 of the plate-shaped member 60. This can prevent dust from circulating inside and outside the riding portion 8a through the cutout portion 62. Also, it can prevent the lower side of the riding portion 8a from being seen through the cutout portion 62, improving the aesthetic appearance.

[0097] Further, the insertion hole 71a is disposed inside the cutout portion 62. In this embodiment, the front-to-rear width of the upper and lower guide portions 82 (long holes) is approximately the same as the front-to-rear width of the cutout portion 62. Thus, in this embodiment, the movable member 70 is provided so that the insertion hole 71a moves back and forth within the range of the cutout portion 62.

[0098] In the following, the manner in which the movable member 70 moves will be described using an example in which the seat 16 is moved forward.

[0099] When the seat 16 shown in Fig. 15 is moved forward, the loader lever 20 and the operation mechanism 30 are moved forward. Due to the movement of the loader lever 20, etc., the cables 40 and 50 shown in Fig. 16 are moved forward. At this time, the cables 40 and 50 press the movable member 70 forward through the insertion hole 71a.

[0100] As the cables 40, 50 press the insertion holes 71a forward, the rollers 81 rotate the guide portions 82 forward, and as shown in Figures 19 and 20, the movable member 70 is moved forward relative to the plate-like member 60. This allows the insertion portions (insertion holes 71a) of the cables 40, 50 to move forward in response to the forward movement of the seat 16, thereby preventing the cables 40, 50 from being forcibly deformed at the insertion portions and preventing an increase in the sliding resistance of the cables 40, 50.

[0101] In addition, since the insertion portion (insertion hole 71a) of the cables 40 / 50 moves to follow the cables 40 / 50, the size of the insertion hole 71a can be kept to the minimum size through which the cables 40 / 50 can be inserted. This makes it possible to prevent the passage of dust through the insertion hole 71a and improve the aesthetic appearance. Damage to the cables 40 / 50 caused by the edges of the insertion hole 71a can be easily prevented by providing a protective member such as a grommet to the insertion hole 71a or by providing a protective member only to the portion of the cables 40 / 50 that is inserted into the insertion hole 71a.

[0102] Furthermore, the plate portion 71 of the movable member 70 is formed so as to always close the cutout portion 62 regardless of the front-rear position (see FIGS. 16 and 19). This makes it possible to effectively prevent the inflow of dust and improve the aesthetic appearance.

[0103] In addition, in this embodiment, by providing two guide mechanisms 80, one above and one below, it is possible to suppress rattling of the movable member 70 and to suitably move the movable member 70. In particular, in this embodiment, a plurality of (two) lower rollers 81 are configured to rotate relative to one lower guide portion 82 (see FIG. 17). This makes it possible to distribute the load applied to the lower rollers 81.

[0104] As shown in FIG. 15, the cables 40 and 50 extend rearward (in the direction of movement of the seat 16) from the loader lever 20 and the operation mechanism 30, and their midsections are guided below the bottom 8b of the seating section 8a through the movable member 70 (through hole 71a). In this embodiment, the loader lever 20 and the operation mechanism 30 are disposed forward of the armrest 17, so that the distance between the loader lever 20 and the movable member 70 in the front-rear direction can be made relatively long. This makes it possible to prevent the cables 40 and 50 from being suddenly bent downward. In addition, by aligning the movement direction of the seat 16 (front-rear direction) with the direction in which the cables 40 and 50 extend from the loader lever 20 (front-rear direction), it is possible to suppress a change in the bending radius of the bent portions of the cables 40 and 50 even if the cables 40 and 50 move forward or backward together with the seat 16.

[0105] As described above, the operating mechanism 30 according to this embodiment comprises a first oscillating member 32 that can oscillate around a lower first oscillating axis 32b (first oscillating axis), a second oscillating member 37 that can oscillate around a lower second oscillating axis 38 (second oscillating axis) that is arranged perpendicular to the lower first oscillating axis 32b, a rod end 36 (first connecting member) fixed to the first oscillating member 32, a connecting rod 39 (second connecting member) that is fixed to the second oscillating member 37 and has an axis-shaped portion 39b that is arranged with its axis D38 facing in a direction inclined relative to the lower second oscillating axis 38, and the axis-shaped portion 39b is slidably connected to the rod end 36, and a loader lever 20 (operating tool) that is connected to either the first oscillating member 32 or the second oscillating member 37.

[0106] With this configuration, when transmitting the operation of the loader lever 20, the direction of the swing can be changed with a simple configuration.

[0107] Further, the lower first swing shaft 32b is disposed so as to extend along the front-rear direction of the vehicle body, and the lower second swing shaft 38 is disposed so as to extend along the left-right direction of the vehicle body.

[0108] With this configuration, when transmitting the operation of the loader lever 20, the direction of the swing can be changed with a simple configuration.

[0109] Also, a cable support portion 31f (support portion) is further provided that supports the first cable 40 and the second cable 50 (cables) that transmit the operation of the loader lever 20 so as to extend along the front-rear direction of the vehicle body.

[0110] With this configuration, the cable can be arranged to extend in the fore-and-aft direction of the vehicle body, and the cable can be arranged while avoiding interference between the cable and components below the operating mechanism 30, for example.

[0111] Further, the lower first oscillation shaft 32b and the lower second oscillation shaft 38 are arranged at the same position in a direction (up-down direction) perpendicular to the lower first oscillation shaft 32b and the lower second oscillation shaft 38 (see FIG. 5).

[0112] By configuring it in this way, the operation mechanism 30 can be made compact.

[0113] The device further includes a support member 31 that supports the first oscillating member 32 via the lower first oscillating shaft 32b and supports the second oscillating member 37 via the lower second oscillating shaft .

[0114] With this configuration, the first oscillating member 32 and the second oscillating member 37 can be integrated (unitized) with the support member 31. This can facilitate management of parts and installation work.

[0115] Further, the support member 31 is formed with a cable support portion 31f (support portion) that supports a second cable 50 (cable) connected to either the first swing member 32 or the second swing member 37 and transmits the operation of the loader lever 20.

[0116] By configuring in this way, the second cable 50 can be arranged using the support member 31.

[0117] The support member 31 is further provided with a regulating member 35 that regulates the swing of at least one of the first swing member 32 or the second swing member 37 at a predetermined position.

[0118] By configuring in this way, the swing operation of the loader lever 20 can be appropriately regulated, and the operability can be improved.

[0119] The tractor 1 (work vehicle) according to the present embodiment includes a seat 16 whose position can be adjusted and the operation mechanism 30, and the operation mechanism 30 is configured to move integrally with the seat 16 (see FIG. 15).

[0120] By configuring in this way, the relative positional relationship between the seat 16 and the operation mechanism 30 can be maintained, and it is possible to prevent the operability of the operation mechanism 30 from deteriorating.

[0121] The seat 16 can adjust its position in the longitudinal direction of the vehicle body. The operation mechanism 30 is disposed in front of the armrest 17 provided on the seat 16. A second cable 50 (cable) that transmits the operation of the loader lever 20 is connected to the operation mechanism 30. The second cable 50 is provided so as to extend rearward from the operation mechanism 30 and is arranged to bend forward in the middle portion.

[0122] By configuring in this manner, the bending radius of the bent second cable 50 can be prevented from changing significantly as the seat 16 moves, and an increase in the sliding resistance of the second cable 50 can be suppressed.

[0123] The seat further includes an armrest 17 whose position relative to the operating mechanism 30 can be adjusted.

[0124] With this configuration, the operability of the operation mechanism 30 can be improved.

[0125] The lower first oscillating shaft 32b according to this embodiment is one embodiment of the first oscillating shaft. Moreover, the lower second oscillating shaft 38 according to this embodiment is one embodiment of the second oscillating shaft. Moreover, the rod end 36 according to the present embodiment is one embodiment of a first connecting member. Moreover, the connecting rod 39 according to this embodiment is one embodiment of a second connecting member. Moreover, the loader lever 20 according to this embodiment is one embodiment of an operating tool. The tractor 1 according to this embodiment is one embodiment of a work vehicle.

[0126] As described above, the tractor 1 (work vehicle) of this embodiment is equipped with a movable loader lever 20 (movable member), cables 40 / 50 (longitudinal member) which are formed in a flexible longitudinal shape and are connected to the loader lever 20 and move in conjunction with movement of the loader lever 20, and a movable member 70 which has an insertion hole 71a (insertion portion) through which the cable 40 / 50 is inserted and is arranged to be movable relative to the vehicle body.

[0127] With this configuration, the elongated members (the cables 40, 50) can be guided suitably. That is, when it is necessary to arrange the cables 40 / 50 so as to pass through a member, the member (movable member 70) can be made movable, and the movable member 70 can be moved to follow the cables 40 / 50, thereby preventing the cables 40 / 50 from being forcibly deformed. In addition, because the movable member 70 can be moved to follow the cables 40 / 50, the size of the insertion hole 71a can be kept to a minimum, preventing the passage of dust through the insertion hole 71a and preventing a deterioration in the aesthetic appearance.

[0128] The vehicle further includes a plate-shaped member 60 (fixed member) that is fixed to the vehicle body and has a cutout portion 62, and the movable member 70 is arranged to be movable relative to the plate-shaped member 60 so that the insertion hole 71a moves within the inner range of the cutout portion 62.

[0129] With this configuration, excessive deformation of the cables 40 and 50 that are arranged to pass through the plate-like member 60 can be suppressed.

[0130] Further, the plate-shaped member 60 has a plate portion 61 (first plate-shaped portion) in which the cutout portion 62 is formed, and the movable member 70 has a plate portion 71 (second plate-shaped portion) in which the insertion hole 71a is formed and which is formed so as to cover the cutout portion 62 of the plate portion 61 (see Figure 16).

[0131] By configuring in this manner, it is possible to prevent the circulation of dust and improve the aesthetic appearance.

[0132] Also, a guide mechanism 80 for guiding the movement of the movable member 70 is further provided.

[0133] With this configuration, the movable member 70 can be moved appropriately.

[0134] In addition, the guide mechanism 80 includes a roller 81 rotatably mounted on either the movable member 70 or the plate-shaped member 60, and a guide portion 82 mounted on the other of the movable member 70 or the plate-shaped member 60, for guiding the roller 81.

[0135] With this configuration, the movable member 70 can be moved appropriately.

[0136] The guide mechanisms 80 are provided on both one side surface and the other side surface (upper side and lower side) of the plate portion 61 (see FIGS. 16 and 17).

[0137] With this configuration, the movable member 70 can be moved appropriately.

[0138] The moving member includes a loader lever 20 (operating tool) for operating the front loader 10, and the elongated member includes cables 40 and 50 for transmitting the operation of the loader lever 20.

[0139] With this configuration, excessive deformation of the cables 40, 50 connected to the loader lever 20 for operating the front loader 10 can be suppressed.

[0140] The work machine further includes a seat 16 that is adjustable in position and is provided in the riding section 8a where the operator rides, the plate-like member 60 forms the bottom 8b of the riding section 8a, and the loader lever 20 is configured to move integrally with the seat 16 (see FIG. 15).

[0141] With this configuration, excessive deformation of the cables 40, 50 that would otherwise occur when the position of the seat 16 is adjusted can be suppressed.

[0142] In addition, the cables 40, 50 are arranged to extend from the loader lever 20 in one direction (rearward) along the movement direction of the seat 16, and are guided below the bottom 8b through the insertion hole 71a, and extend in the opposite direction (forward) from below the bottom 8b.

[0143] With this configuration, an increase in the sliding resistance of the cables 40 and 50 caused by the movement of the seat 16 can be suppressed.

[0144] The tractor 1 according to this embodiment is one embodiment of a work vehicle. Moreover, the loader lever 20 according to this embodiment is one embodiment of a moving member and an operating tool. Moreover, the insertion hole 71a according to the present embodiment is one embodiment of an insertion portion. Moreover, the plate-like member 60 according to this embodiment is one embodiment of a fixing member. Moreover, the plate portion 61 according to this embodiment is one embodiment of the first plate-shaped portion. Moreover, the plate portion 71 according to this embodiment is one embodiment of the second plate-shaped portion.

[0145] Although the embodiment of the present invention has been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention described in the claims.

[0146] For example, the work vehicle according to this embodiment is a tractor 1, but the type of work vehicle is not limited to this. The work vehicle may be other agricultural vehicles, construction vehicles, industrial vehicles, etc.

[0147] In the present embodiment, as shown in Fig. 4, an example has been shown in which the rod end 36 is provided on the first swinging member 32 that swings integrally with the loader lever 20, and the connecting rod 39 is provided on the second swinging member 37 to which the second cable 50 is connected, but the present invention is not limited to this. For example, it is also possible to provide the connecting rod 39 on the first swinging member 32, and the rod end 36 on the second swinging member 37.

[0148] As shown in FIG. 5, the lower first oscillating shaft 32b and the lower second oscillating shaft 38 are arranged at the same height as each other, but this is not limited to this, and the lower first oscillating shaft 32b and the lower second oscillating shaft 38 may be arranged at different height positions from each other.

[0149] In addition, the first oscillating member 32, the second oscillating member 37, etc. of the operating mechanism 30 are integrated with the support member 31 shown in Figure 5, but this is not limited to this, and some of the members may be supported (fixed) by a member other than the support member 31.

[0150] Furthermore, the restricting member 35 shown in FIG. 5 is intended to restrict the left-right swinging of the first swing member 32, but it is also possible to provide a restricting member that restricts the front-rear swinging of the first swing member 32.

[0151] Further, the regulating member 35 shown in FIG. 5 is for regulating the swinging of the first swinging member 32, but it is also possible to provide a regulating member for regulating the swinging of the second swinging member 37, for example.

[0152] In addition, the loader lever 20 and the operating mechanism 30 are configured to move integrally with the seat 16, as shown in FIG. 15, but this is not limited to the above, and the seat 16 may move relative to the loader lever 20 and the operating mechanism 30.

[0153] In addition, the armrest 17 is described as moving relatively to the loader lever 20 and the operation mechanism 30, but this is not limited thereto, and the loader lever 20 and the operation mechanism 30 may move integrally with the movement of the armrest 17. In addition, the loader lever 20 and the operation mechanism 30 are described as being disposed forward of the armrest 17, but the positional relationship among the armrest 17, the loader lever 20 and the operation mechanism 30 is not limited thereto.

[0154] Furthermore, although the cables 40, 50 extend rearward from the loader lever 20 and the operating mechanism 30, there is no particular limitation on the direction in which the cables 40, 50 extend from the loader lever 20, etc. For example, the cables 40, 50 may extend downward from the loader lever 20, etc. Furthermore, although the cables 40, 50 have been arranged so as to be partially bent, there is no limitation to this and the cables 40, 50 may be arranged generally linearly (without bending).

[0155] 16, the present embodiment shows an example in which the notch 62 is formed in the plate-shaped member 60 and the movable member 70 is provided in the notch 62, but the present invention is not limited to this. For example, it is also possible to provide the movable member 70 on the outside of the plate-shaped member 60 without forming the notch 62 in the plate-shaped member 60.

[0156] Furthermore, the plate-like member 60 and the movable member 70 are formed by appropriately bending the ends of the plate portions 61 and 71, but the shapes and structures of the plate-like member 60 and the movable member 70 are not limited to this embodiment and can be modified as desired.

[0157] In the present embodiment, the rollers 81 are provided on the movable member 70, and the guide portion 82 is provided on the plate-like member 60, but the configuration of the guide mechanism 80 is not limited to this. For example, the rollers 81 may be provided on the plate-like member 60, and the guide portion 82 may be provided on the movable member 70.

[0158] Furthermore, the guide mechanism 80 includes the rollers 81 and the guide portion 82, but the members constituting the guide mechanism 80 are not limited to the rollers 81 and the guide portion 82 and can be changed as desired. For example, the guide mechanism 80 can also be a slidable rail or the like.

[0159] In the present embodiment, as shown in Figures 15, 16, etc., cables 40, 50 are exemplified as longitudinal members guided via movable member 70, but the present invention is not limited to this. For example, wire harnesses that transmit power or electrical signals, ducts that guide air for air conditioning, air conditioning hoses used in air conditioners, etc. can also be guided as longitudinal members by movable member 70. For example, in the case of a seat air conditioner that is provided in seat 16 to heat and cool seat 16, a duct, air conditioning hose, etc. connected to the seat air conditioner can be guided via movable member 70.

[0160] In addition, in this embodiment, the loader lever 20 is illustrated as an example of a movable member to which the elongated member is connected, but the present invention is not limited to this and can be applied to various other movable members. [Explanation of symbols]

[0161] 1 Tractor 20 Loader lever 30 Operating mechanism 32 First swing member 32b Lower first swing axis 36 Rod end 37 Second oscillating member 39 Connecting rod 39b Shaft part 40 First Cable 50 Second Cable 70 Movable parts 71a Insertion hole

Claims

1. A first swing member capable of swinging about a first swing axis; A second swing member capable of swinging about a second swing axis arranged in a direction perpendicular to the first swing axis; A first connecting member fixed to the first swinging member; A second connecting member is fixed to the second swing member and includes a shaft-shaped portion disposed such that the axial direction of the shaft-shaped portion is inclined with respect to the second swing axis, and the shaft-shaped portion is slidably connected to the first connecting member; An operating tool connected to either the first swing member or the second swing member; Equipped with Operation mechanism.

2. The first pivot shaft is disposed so as to extend along the front-rear direction of the vehicle body, The second pivot shaft is disposed so as to extend along the left-right direction of the vehicle body. The operating mechanism according to claim 1 .

3. The vehicle further includes a support portion that supports a cable that transmits the operation of the operating tool so as to extend along the front-rear direction of the vehicle body. The operating mechanism according to claim 2 .

4. The first oscillation shaft and the second oscillation shaft are The first and second oscillation axes are disposed at the same position in a direction perpendicular to the first and second oscillation axes. The operating mechanism according to claim 1 .

5. The device further includes a support member that supports the first oscillating member via the first oscillating shaft and supports the second oscillating member via the second oscillating shaft. The operating mechanism according to claim 1 .

6. The support member includes: A support portion is formed to support a cable that is connected to the other of the first swing member or the second swing member and transmits the operation of the operating tool. The operating mechanism according to claim 5.

7. The support member further includes a regulating member that regulates the swing of at least one of the first swing member and the second swing member at a predetermined position. The operating mechanism according to claim 5.

8. Adjustable seating and An operating mechanism according to any one of claims 1 to 7; Equipped with The operation mechanism includes: configured to move integrally with the seat; Work vehicle.

9. The seat is The position of the vehicle in the fore-aft direction can be adjusted. The operation mechanism includes: Located forward of the armrest provided on the seat, The operating mechanism includes: A cable for transmitting the operation of the operating tool is connected to the operating device. The cable includes: The operating mechanism is provided so as to extend rearward and bend forward at a midpoint. A work vehicle according to claim 8.

10. Further comprising an armrest whose position relative to the operating mechanism can be adjusted. A work vehicle according to claim 8.

Images