JP6561567B2 - Work vehicle - Google Patents

Description

  The present invention relates to a work vehicle that performs operations such as planting seedlings in a field.

  In work vehicles that carry out operations such as planting seedlings on farm fields such as riding rice transplanters, a floor step provided in front of the traveling vehicle body, a cockpit seat provided in the rear center of the floor step, and a bonnet provided in the front center of the floor step A front cover that covers an open space formed in front of the bonnet and a headlamp that is provided in the front center of the front cover are provided (for example, see Patent Document 1).

  The work vehicle described in Patent Document 1 can irradiate light from a headlamp toward a field in front of the machine body. For this reason, in the work vehicle described in Patent Document 1, seedlings can be planted while illuminating the field in front of the aircraft at night.

  In addition, the work vehicle described in Patent Document 1 includes a steering handle for steering the traveling vehicle body, a main transmission operation member that switches the traveling body forward and backward and a moving speed, a planting operation member that switches the raising and lowering of the seedling planting unit, and the like. It is provided on the upper side of the bonnet, and a pair of preliminary seedling frames are provided on both sides of the machine body on the front side of the floor step. Therefore, in the work vehicle described in Patent Document 1, the traveling vehicle body can be operated by operating the steering handle, the main transmission operation member, the planting operation member, and the like, and the seedling is replenished from a pair of spare seedling frames. can do.

JP2013-243946A

  However, in the work vehicle shown in Patent Document 1, since the headlamp light is not irradiated to the side of the front body of the traveling vehicle body or to the outside of the body above the body, the farm field is used during seedling planting work at night or the like. The problem is that the visibility of the parts located on the side of the body on the front side of the traveling vehicle body, the part located on the outside of the body on the front side of the floor step, and the main transmission operation member and the planting operation member provided on the upper side of the bonnet are reduced. There is.

  The present invention has been made in view of the above, and an object of the present invention is to provide a work vehicle capable of improving the visibility of the side of the vehicle body and the upper side of the vehicle body on the front side of the traveling vehicle body.

In order to solve the above-described problems and achieve the object, a work vehicle according to claim 1 of the present invention includes a traveling vehicle body (2) and a floor step (8) provided on the front side of the vehicle body of the traveling vehicle body (2). ), A bonnet (71) provided on the front side and the center side of the machine body of the floor step (8), a main transmission operation member (74) and a planting operation member (75 provided on the machine body side of the bonnet (71). ), A front cover (76) that is provided on the front side of the bonnet (71) and covers an opening space formed on the front side of the bonnet (71), and provided on the front side of the front cover (76). The headlamp (77) includes a light source (77a) that generates light, and a reflection member (77b) that reflects at least light from the light source (77a) to the outside of the fuselage. Has the light source (77a), in the aircraft longitudinal direction as viewed, together with the centrally located side in the horizontal direction of the machine body, to form the light source housing portion (77d) providing said light source (77a), said reflecting member ( 77b) is provided around the light source accommodating portion (77d), and further on the front side of the vehicle body from the front cover (76) in the traveling vehicle body (2), the light source ( 77a) is provided with a front handle (79) for operating the traveling vehicle body (2) at a position that does not overlap with the vehicle body (2), and the front handle (79) is formed in a substantially rectangular frame shape when viewed from the front-rear direction of the fuselage. (79a), an expansion / contraction part (79b) that is movable in the vertical direction of the machine body relative to the base part (79a), and one end connected to the expansion / contraction part (79b), and the other end is a diff locker And a pair of left and right front wheels (3) and a rear wheel (4) in a locked state, or a pair of left and right front wheels (79f). 3) and the rear wheel (4) can be switched to a released state in which the diff lock is released .

  According to a second aspect of the present invention, in the work vehicle according to the first aspect, the headlamp (77) is irradiated with light from the outside in the direction from the outside of the body in the left-right direction of the body toward the center of the body. A reflecting portion (77h) capable of reflecting in the opposite direction, and the reflecting portion (77h) is located at an end of the reflecting member (77b) on the outer side of the body. To do.

The invention according to claim 3, in the working vehicle according to claim 1 or claim 2, pre-Symbol headlamp (77), the right headlamp provided on the body right of the front cover (76) And a left headlight (77L) provided on the left side of the front cover (76). The right headlight (77R) and the left headlight (77L) In the state provided on the front cover (76), the front cover (76) is connected by a connecting member (77J) located on the back surface (76g) side, and the right headlight (77R) and the left front The light source (77a) provided in each of the lighting lamps (77L) is provided at a position that does not overlap the front handle (79) when viewed from the front-rear direction of the machine body.

  According to a fourth aspect of the present invention, in the work vehicle according to any one of the first to third aspects, the vehicle body lower side of the front cover (76) and the vehicle body front side of the floor step (8). The distance (d) in the front-rear direction of the aircraft is reduced by a bent portion (76b) that tilts the front side and the lower side of the front cover (76) downward and downward toward the floor step (8). A gap (g) is formed between the upper side of the front cover (76) and the upper side of the bonnet (71) in the front-rear direction to allow communication between the inside and outside of the bonnet (71).

  According to a fifth aspect of the present invention, in the work vehicle according to any one of the first to fourth aspects, the bonnet (71) is sandwiched between the floor steps (8) in the left-right direction of the fuselage. The brake pedal (18) for braking at least the traveling vehicle body (2) is provided on one side, and the other side of the floor step (8) sandwiching the bonnet (71) in the left-right direction of the body. Is provided with a preliminary seedling frame (80) on which a seedling can be placed, and the preliminary seedling frame (80) is rotatably supported around a support column (82) standing on the floor step (8). And when it rotates around the said support | pillar (82), at least one part overlaps with the said floor step (8) in the body vertical direction view, It is characterized by the above-mentioned.

  According to a sixth aspect of the present invention, in the work vehicle according to the fifth aspect, a steering handle (73) for steering the traveling vehicle body (2) is provided on the upper side of the bonnet (71). The steering handle (73) is positioned on the vehicle body center side of the bonnet (71) in the left-right direction of the vehicle body, and the main transmission operation member (74) is connected to the preliminary seedling frame in the vehicle left-right direction of the bonnet (71). 80), the planting operation member (75) is provided on the brake pedal (18) side in the left-right direction of the bonnet (71), and the upper end position of the spare seedling frame (80) is The steering wheel (73) and the main speed change operation member (74) are lower than the upper end positions of the airframes.

According to a seventh aspect of the present invention, in the work vehicle according to the sixth aspect , the preliminary seedling frame (80) is rotatably supported with respect to the support (82), and a seedling is placed thereon. A plate-shaped preliminary seedling stage (81) and a rotation operation part (81a) for rotating the preliminary seedling stage (81) with respect to the support column (82). and, aircraft upper end position of the pivot operation part (81a) is characterized by low Ikoto than the respective fuselage upper end position of the steering wheel (73) and the main speed change operation member (74).

In addition, the invention according to claim 8 is the work vehicle according to any one of claims 1 to 4, wherein the spare seedling frame (80) has a spare seedling stage (81) on which a seedling can be placed. ) Is provided in the floor step (8) so as to be movable in the left-right direction with respect to the bonnet (71), and the preliminary seedling frame (80) is located at the front end of the vehicle body (2). And a support mechanism (84) provided on the center side of the machine body in the left-right direction of the machine body and having a lock mechanism for holding the preliminary seedling stage (81) in the right side arrangement state or the left side arrangement state, and the preliminary seedling stage (81) And a support column (82) that is rotatably supported via a rotation mechanism (83), and is supported to be rotatable in the left-right direction of the machine body with respect to the support mechanism (84). (82) shows that the preliminary seedling stand (81) is on the right side of the aircraft In this state, the preliminary seedling stage (81) is supported so that the right side of the machine body on the front side of the body of the floor step (8) and the preliminary seedling stage (81) overlap in the vertical direction of the body. At the same time, in a state where the preliminary seedling stage (81) is arranged on the left side of the machine body, the preliminary seedling stage (81) is connected to the left side of the machine body on the front side of the floor step (8) and the preliminary seedling stage (81). ) Are overlapped with each other when viewed from above and below the body .

Working vehicle according to claim 1, since the reflecting member in the machine body front-rear direction when viewed (77b) is located around the light source housing for housing a light source (77a) of the front cover (76) (77d), the reflecting member (77b) can reflect the light of the light source (77a) toward the outside of the body of the front cover (76) in the left-right direction of the body and the outside of the body in the up-down direction of the body. That is, the light of the light source (77a) can be emitted from the headlamp (77) toward the side of the body on the front side of the body of the traveling vehicle body (2) or above the body. For this reason, at the time of planting work at night or the like, the floor step (8) located outside the machine body on the side of the machine body with respect to the bonnet (71), the field, and located outside the machine body above the machine body with respect to the bonnet (71). Each of the main transmission operation member (74) and the planting operation member (75) can be irradiated with light from the light source (77a). As a result, it is possible to improve the visibility of the traveling vehicle body (2) on the front side of the vehicle body and on the upper side of the vehicle body. Further, when the operator pulls the expansion / contraction part (79b), the pair of left and right front wheels (3) and the rear wheel (4) are in a locked state in which they are differentially locked. Thereby, it is possible to prevent the pair of left and right front wheels (3) and rear wheels (4) from slipping at the time of crossing the ridge or escaping from the farm field, and as a result, the work efficiency can be improved. Further, when the extension / contraction part (79b) is pulled, the part where the operator holds the extension / contraction part (79b) moves away from the base part (79a). Therefore, the lift of the traveling vehicle body (2) is suppressed with a light load by the lever principle. be able to.

  According to a second aspect of the present invention, in addition to the effect of the first aspect of the present invention, at least a part of the light emitted in the direction from the outer side of the aircraft in the left-right direction of the aircraft toward the center of the aircraft is provided in the opposite direction. Since the headlamp (77) has a reflective part (77h) that can be reflected on the rear part, and the reflective part (77h) is located at the end of the reflective member (77b) outside the machine body, Light emitted from lights of other work machines or cars located on the side can be reflected toward the work machines or cars. As a result, at the time of planting work at night or the like, the presence of the work vehicle (1-1) can be noticed to other work machines, automobiles, and the like.

  In addition to the effect of the invention of claim 1 or 2, the work vehicle according to claim 3 connects the right headlight (77R) and the left headlight (77L) by the connecting member (77J). Thus, the mechanical strength of the headlamp (77) can be improved, and the light source (77a) is provided at a position that does not overlap the front handle (79) when viewed from the front-rear direction of the machine body. It is possible to make it difficult to block irradiated light. As a result, the visibility in front of the aircraft can be improved during planting work at night or the like.

  In addition to the effect of the invention according to any one of claims 1 to 3, the work vehicle according to claim 4 is provided between the lower side of the front cover (76) and the front side of the floor step (8). By reducing the distance (d) in the longitudinal direction of the machine body by the bent portion (76b), it is possible to prevent water and mud splashing from the field from entering the bonnet (71), and the upper side of the machine body of the front cover (76). By forming a gap (g) that allows the inside and outside of the bonnet (71) to communicate with each other between the bonnet (71) and the upper side of the body of the bonnet (71), heat inside the bonnet (71) can be released to the outside.

  In addition to the effect of the invention according to any one of claims 1 to 4, the work vehicle according to claim 5 is provided on one side of the floor step (8) with the bonnet (71) sandwiched between the left and right sides of the machine body. By providing a spare seedling frame (80) on the other side with the brake pedal (18) and the bonnet (71) sandwiched between the brake pedal (18) and the brake pedal (18) during the operation of replenishing seedlings, It is possible to reduce the width of the work vehicle (1-1) in the left-right direction of the machine body by at least a part of the preliminary seedling frame (80) overlapping the floor step (8) when viewed from the vertical direction of the machine body. it can.

  In addition to the effect of the invention of claim 5, the work vehicle according to claim 6 is a machine body of the preliminary seedling frame (80) with respect to the upper end position of each of the steering handle (73) and the main transmission operating member (74). Since the upper end position is lowered, the preliminary seedling frame (80) is less likely to obstruct the field of view of the traveling vehicle body (2) on the front side and the side of the body. As a result, it is possible to improve the visibility of the farm field from the front side of the traveling vehicle body (2).

According to a seventh aspect of the present invention, in addition to the effect of the sixth aspect of the present invention, the work vehicle upper end position of the rotation operation portion (81a) for rotating the preliminary seedling stage (81) is set to the steering handle. (73) and the main speed change operation member (74) are lower than the upper end positions of the airframes, so that the steering handle (73) and the main speed change operation member (74) Interference with the operator can be suppressed. As a result, it is possible to prevent the main transmission operation member (74) from unintentionally switching from the neutral position (stop position) to the forward movement position or the reverse movement position during the operation of replenishing the seedling from the preliminary seedling frame (80).

In addition to the effect of the invention according to any one of claims 1 to 4 , when the work vehicle according to claim 8 supplies seedlings from the outside of the machine body to the spare seedling stage (81), The spare seedling stage (81) can be changed to a state where it is easy to supply seedlings in the arrangement state or the left side arrangement state. Further, when the seedling is replenished to the seedling planting unit (30) from the spare seedling stage (81), the spare seedling stage (81) is placed in a state where it is easy to replenish the seedling in the right side arrangement state or the left side arrangement state. Can be changed. Therefore, supply work and replenishment work can be performed from the direction with good field conditions and workability, and work efficiency can be improved.

FIG. 1 is a side view showing a work vehicle according to the first embodiment. FIG. 2 is a plan view of the work vehicle shown in FIG. FIG. 3 is a front view of the work vehicle shown in FIG. 1. 4 is a perspective view showing the front cover and its surroundings of the work vehicle shown in FIG. FIG. 5 is a side view showing the lower side of the front cover of the work vehicle shown in FIG. 1 and the front side of the floor step. FIG. 6 is a front view of the front cover of the work vehicle shown in FIG. 1. FIG. 7 is a rear view of the front cover shown in FIG. FIG. 8 is a bottom view of the front cover shown in FIG. FIG. 9 is a plan view showing a work vehicle according to the second embodiment. FIG. 10 is a plan view showing a work vehicle according to the third embodiment. FIG. 11 is a front view showing a front handle of the work vehicle according to the fourth embodiment. FIG. 12 is a front view showing a front handle of a modified example of the work vehicle according to the fourth embodiment.

  Hereinafter, an embodiment of a work vehicle according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

Embodiment 1
FIG. 1 is a side view showing a work vehicle according to the first embodiment. FIG. 2 is a plan view of the work vehicle shown in FIG. FIG. 3 is a front view of the work vehicle shown in FIG. 1. In the following description, the forward direction side of work vehicle 1-1 is the front side of the body (left side in FIGS. 1 and 2), and the opposite side to the forward direction side is the rear side of the body (right side in FIGS. 1 and 2). ), The right turn side is the right side of the body (upper side of FIG. 2, left side of FIG. 3), the left turn side is the left side of the body (lower side of FIG. 2, right side of FIG. 3), and the upper side in the vertical direction is the upper side of the body (FIG. 1). And the lower side in the vertical direction is the lower side of the fuselage (lower side of FIGS. 1 and 3). Also, when viewed from the front side of the aircraft toward the rear side of the aircraft, the aircraft is viewed from the front and rear, and when viewed from the left side of the aircraft toward the right side of the aircraft (or viewed from the right side of the aircraft toward the left side of the aircraft) When viewed from the upper side of the machine body toward the lower side of the machine body, it is assumed that the machine body is viewed in the vertical direction.

  The traveling vehicle body 2 of the work vehicle 1-1 according to the first embodiment includes a pair of left and right front wheels 3 and a pair of left and right rear wheels 4. The traveling vehicle body 2 is capable of traveling on a farm field or a road, for example, by using four-wheel drive in which the front wheels 3 and the rear wheels 4 are driven during traveling. In addition, a seedling planting section 30 that can be moved up and down by a seedling planting section lifting mechanism 20 is provided on the rear side of the vehicle body of the traveling vehicle body 2.

  The traveling vehicle body 2 includes a main frame 5, an engine 6 mounted on the upper side of the main frame 5, power generated by the engine 6 as driving wheels (in the first embodiment, the front wheels 3 and the rear wheels 4) and seedling planting. And a power transmission device 7 for transmission to the unit 30. That is, in the work vehicle 1-1 according to the first embodiment, the power generated by the engine 6 that is a power source is not only used for moving the traveling vehicle body 2 forward or backward, but also the seedling planting unit 30. Also used to drive.

  The engine 6 is in a state in which it protrudes to the upper side of the body from the floor step 8 on which the operator puts his / her foot when getting on at the approximate center of the traveling vehicle body 2 in the left-right direction of the body. For example, a heat engine such as a diesel engine or a gasoline engine is used as the engine 6. The floor step 8 is provided on the front side of the body of the traveling vehicle body 2 in the longitudinal direction of the body. The floor step 8 in the first embodiment is provided between the front end of the vehicle body 2 and the rear side of the engine 6. The floor step 8 is attached on the main frame 5. At least a part of the floor step 8 in the vicinity of the cockpit 11 described later is formed in a lattice shape when viewed from the top and bottom of the machine body so that mud and the like adhering to the shoes of the operator can be dropped onto the field. A rear step 9 also serving as a fender of the rear wheel 4 is provided on the rear side of the machine body of the floor step 8. The rear step 9 has an inclined surface (backward inclined surface) that rises toward the upper side of the aircraft as it goes from the front side of the aircraft to the rear side of the aircraft. The rear step 9 is disposed on both sides of the engine 6 in the left-right direction of the machine body and sandwiches the engine 6. The engine 6 is covered with an engine cover 10. A cockpit 11 is provided on the upper side of the body of the engine cover 10.

  The power transmission device 7 includes a belt-type power transmission mechanism 12 that transmits power from the engine 6 to the hydraulic continuously variable transmission 13, and a hydraulic continuously variable transmission that is a transmission that shifts power transmitted from the engine 6. 13 and a mission case 14.

  The belt type power transmission mechanism 12 transmits power generated by the engine 6 to the hydraulic continuously variable transmission 13 via a belt (not shown).

  The hydraulic continuously variable transmission 13 is configured as a hydrostatic continuously variable transmission called HST (Hydro Static Transmission). The hydraulic continuously variable transmission 13 can change an output (rotation speed) and an output direction (rotation direction) by operating a main transmission operation member 74 described later by an operator. That is, the hydraulic continuously variable transmission 13 can change the forward / backward travel and the moving speed of the traveling vehicle body 2 by changing the rotation speed and the rotation direction.

  The transmission case 14 is a transmission device that transmits the power from the engine 6 that has been changed by the hydraulic continuously variable transmission 13 to each part. The mission case 14 has a sub-transmission mechanism (not shown) that switches the traveling speed (moving speed) during traveling on the road or during planting work. The mission case 14 is configured so that the traveling speed (moving speed) of the traveling vehicle body 2 is changed from the traveling speed on the road during traveling on the road (moving speed during planting work) by operating an auxiliary transmission lever (not shown) by the operator. Can also be switched to a seedling planting speed at the time of planting work (a speed lower than the moving speed at the time of road traveling and suitable for planting work).

  The front wheel 3 is connected to the front wheel final case 15 so that the front wheel 3 can be steered in accordance with a steering operation of a steering handle 73 described later.

  The rear wheel 4 is connected to the rear wheel gear case 16.

  The seedling planting part lifting mechanism 20 includes a lifting link 21. The elevating link 21 has a parallel link mechanism 22 that connects the rear side of the vehicle body 2 of the traveling vehicle body 2 and the seedling planting unit 30. The parallel link mechanism 22 can be moved up and down with respect to the traveling vehicle body 2 by being connected to the link frame base 23 and the seedling planting portion 30 so as to be rotatable in the vertical direction of the machine body. It is.

  The seedling planting part lifting mechanism 20 includes a hydraulic lifting cylinder 24. The hydraulic elevating cylinder 24 drives the elevating link 21 by an expansion / contraction operation to elevate the seedling planting unit 30. The hydraulic elevating cylinder 24 has a non-working position in which the seedling planting part 30 is raised and a ground work position in which the seedling planting part 30 is lowered (ground to ground) when a planting operation member 75 described later is operated by an operator. (Planting position) can be switched.

  The seedling planting part 30 is attached to the traveling vehicle body 2 via the lifting link 21. The seedling planting unit 30 can plant seedlings in a plurality of sections or a plurality of rows. The seedling planting unit 30 in the first embodiment is a so-called four-row planting in which seedlings are planted in four sections. The seedling planting unit 30 includes a seedling placement table 31, a float 32, and a seedling planting device 40.

  The seedling placement table 31 has as many seedling placement surfaces 31a as the number of planting strips in the left-right direction of the machine body. Each of the seedling placement surfaces 31a is a rear-falling inclined surface on which a plurality of soiled mat-like seedlings can be placed in the vertical direction of the machine body. The float 32 slides on the field with the movement of the traveling vehicle body 2 to level the ground. The float 32 has a center float 32a located on the center side of the body and a side float 32b located on the outer side of the body with the center float 32a interposed therebetween in the left-right direction of the body.

  The seedling planting device 40 is supported by the planting support frame 33 of the seedling placement table 31 and is disposed below the seedling placement table 31. The seedling planting device 40 is a device that takes the seedlings placed on the seedling placement table 31 and places them in the field. The seedling planting device 40 includes a planting basket 41, a rotary case 42, and a planting transmission case 43.

  The planting basket 41 is configured so that it can take seedlings from the seedling mounting table 31 and plant them in the field. The planting basket 41 is rotatably connected to the planting transmission case 43. The rotary case 42 rotatably supports the planting basket 41 and is rotatably connected to the planting transmission case 43. The rotary case 42 has an inconstant speed transmission mechanism (not shown) that can rotate the implantation basket 41 while changing the rotation speed of the implantation basket 41. Thereby, the rotary case 42 can be rotated while changing the rotation speed of the implantation basket 41 according to the rotation angle of the implantation basket 41 with respect to the rotary case 42. The planting transmission case 43 is configured to transmit the power transmitted from the engine 6 to the seedling planting unit 30 to the planting basket 41.

  The leveling device 50 is for leveling an agricultural field. The leveling device 50 is provided below the seedling planting device 40. The leveling device 50 is supported to be raised and lowered by an electric motor (not shown) or the like with respect to the planting support frame 33 or the like. The leveling device 50 includes a center rotor 51 located on the center side of the machine body in the left-right direction of the machine body, a side rotor 52 located on the rear side of the machine body and on the outside of the machine body, and a transmission mechanism 53. The center rotor 51 and the side rotor 52 are disposed on the front side of the machine body with respect to the center float 32a and the side float 32b. The center rotor 51 is rotationally driven by the power from the engine 6 transmitted through the transmission mechanism 53 and the transmission shaft 54 connected to the rear wheel gear case 16. The side rotor 52 is rotationally driven by the power from the engine 6 transmitted through the transmission shaft 54.

  The fertilizer application device 60 supplies fertilizer to the farm field. The fertilizer application device 60 is provided on the rear side of the aircraft body of the cockpit 11. The fertilizer application device 60 can discharge the granular fertilizer stored in the storage hopper 61 to the farm field by a certain amount during planting work.

  Further, a control unit 70 is provided on the floor step 8 in front of the aircraft seat from the cockpit 11. The steering unit 70 includes a bonnet 71, a monitor panel 72, a steering handle 73, a main transmission operation member 74, a planting operation member 75, and a front cover 76.

  The bonnet 71 is provided on the front side of the aircraft and on the center side of the aircraft with respect to the cockpit 11 in the floor step 8. The bonnet 71 protrudes upward from the floor surface of the floor step 8. The bonnet 71 includes, for example, a chargeable / dischargeable battery, a transmission mechanism such as a main transmission operation member 74 and a planting operation member 75, a motor that switches the planting operation member 75 to planting lowering when the traveling vehicle body 2 turns, and a main transmission operation. It has interior equipment such as a potentiometer that detects the angle of the member 74 and the planting operation member 75. On the front side of the bonnet 71, for example, an opening space (not shown) for an operator to work when replacing the battery is formed.

  The monitor panel 72 is provided on the upper side of the bonnet 71. The monitor panel 72 has a rearwardly inclined surface so as to face an operator seated on the cockpit 11. A handle post 73 a is erected on the center side of the monitor panel 72. The monitor panel 72 includes, for example, a marker monitor for notifying that a pair of left and right drawing markers (not shown) are on the field, a planting clutch monitor for notifying that the planting operation member 75 is in the “planting” position, A trap clutch monitor for notifying that the rod clutch 17 is in the “disengaged” position, a fertilizer running monitor for notifying that the fertilizer in the storage hopper 61 has fallen below a predetermined amount, and a passage for introducing fertilizer from the storage hopper 61 to the field are provided. It has various monitors such as a fertilizer clogging monitor that notifies that it is clogged. Various monitors are arranged on the surface of the monitor panel 72 so that the operator can see them.

  The steering handle 73 is operated by an operator to steer the traveling vehicle body 2. The steering handle 73 is provided on the upper side of the body of the bonnet 71. The steering handle 73 is located on the center side of the bonnet 71 in the left-right direction of the body. The steering handle 73 can steer the front wheels 3 via an operating device (not shown) in the bonnet 71.

  The main speed change operation member 74 is a main speed change lever (also referred to as an HST lever) and is a lever for changing the forward / reverse travel and the moving speed of the traveling vehicle body 2. The main transmission operation member 74 is provided on the upper side of the bonnet 71. The main speed change operation member 74 according to the first embodiment is provided on the side of the bonnet 71 in the left-right direction of the bonnet 71, which will be described later, on the preliminary seedling frame 80 side. That is, the main speed change operation member 74 is provided on the left side of the bonnet 71. The main speed change operation member 74 protrudes upward from the upper side of the body of the bonnet 71. The upper body position of the main transmission operating member 74 is a position between the upper body position of the bonnet 71 and the upper body position of the steering handle 73.

  The planting operation member 75 is a planting clutch lever, and is a lever for raising and lowering the seedling planting unit 30 and starting and stopping planting of seedlings by the seedling planting unit 30. The planting operation member 75 is provided on the upper side of the bonnet 71. The planting operation member 75 in the first embodiment is provided on the brake pedal 18 side of the bonnet 71 in the left-right direction of the body. The planting operation member 75 projects upward from the upper side of the body of the bonnet 71. The machine body upper end position of the planting operation member 75 is the same position as the machine body upper end position of the main transmission operation member 74.

  The front cover 76 is a cover member provided on the front side of the bonnet 71 and covers an open space (not shown) formed on the front side of the bonnet 71. The front cover 76 has a so-called bullet shape in which the width in the left-right direction of the body and the width in the up-down direction of the body become narrower from the rear side of the body toward the front side of the body. The front cover 76 is supported by the bonnet 71 so as to be rotatable around a support portion 76a (see FIG. 4) located on the upper side, the rear side, and the outer side of the body. The front cover 76 is rotatable around the support portion 76a in the longitudinal direction of the machine body.

  4 is a perspective view showing the front cover and its surroundings of the work vehicle shown in FIG. FIG. 5 is a side view showing the lower side of the front cover of the work vehicle shown in FIG. 1 and the front side of the floor step. In the front cover 76 according to the first embodiment, the distance d in the front-rear direction between the front cover 76 and the front side of the floor step 8 is such that the front side of the front cover 76 and the lower side of the front cover 76 face the floor step 8. Then, it is reduced by a bent portion 76b inclined downward. The bent portion 76 b in the first embodiment is a front end portion of the front cover 76. For this reason, in the front cover 76, the surface from the bent portion 76b to the upper side of the machine body is a rear upward inclined surface 76c from the bent portion 76b side to the monitor panel 72 side. Further, in the front cover 76, the surface from the bent portion 76 b to the lower side of the machine body is a rearwardly inclined surface 76 d from the bent portion 76 b side toward the front end side of the floor step 8. The rearwardly inclined surface 76d is provided with a handle portion 76e that is formed to be recessed toward the rear side of the machine body and can be put on by the operator. The handle portion 76e has an engaging portion 76h that is detachably engaged with the floor step 8.

  In the front cover 76 according to the first embodiment, when the front cover 76 covers the opening space (not shown) of the bonnet 71 (the state shown in FIG. 4), the upper side of the front cover 76 in the longitudinal direction of the body A gap g that allows communication between the inside and outside of the bonnet 71 is formed between the bonnet 71 and the upper side of the body. The gap g is a gap for discharging heat generated from the interior equipment of the bonnet 71 to the outside of the bonnet 71. The width of the gap g in the front-rear direction of the machine body is set so that the interior equipment is not affected by heat. The gap g in the first embodiment has a U-shape that conforms to the outer shape of the bonnet 71 on the front side and the upper side of the hood 71 when viewed from the top and bottom of the body.

  Here, a headlamp 77 is provided on the front side of the front cover 76.

  FIG. 6 is a front view of the front cover of the work vehicle shown in FIG. 1. FIG. 7 is a rear view of the front cover shown in FIG. FIG. 8 is a bottom view of the front cover shown in FIG. The headlamp 77 includes a right headlamp 77R provided on the right side of the body of the front cover 76, and a left side headlight 77L provided on the left side of the body of the front cover 76. Each of the headlamps 77R and 77L is located on the upper side of the body with respect to the bent portion 76b of the front cover 76 in the longitudinal direction of the body. The headlamps 77R and 77L according to the first embodiment are inclined upward ascending from the center side of the front cover 76 toward the outside of the body in the longitudinal direction of the front cover 76, and the body of the front cover 76 in the lateral direction of the body. Ascending from the front side to the rear side of the aircraft, the rear slopes up. The headlamps 77R and 77L are arranged in a V shape when viewed from the front-rear direction of the body. The headlamps 77R and 77L are provided on the front cover 76 by being inserted from the inside to the outside of the bonnet 71 into openings 76f formed at intervals in the left-right direction of the body of the front cover 76. ing. Each of the headlamps 77R and 77L is fixed to the back surface 76g of the front cover 76 by a fixing portion 76i provided on the back surface 76g of the front cover 76. The fixing portion 76i is a member that is fixed to the back surface 76g of the front cover 76 by, for example, screwing. The fixing portion 76i makes it possible to remove the headlamps 77R and 77L from the front cover 76 by loosening the screws.

  Further, the headlamps 77R and 77L are formed in line symmetry parallel to the vertical direction of the aircraft body when viewed from the longitudinal direction of the aircraft body. That is, the headlamps 77R and 77L are formed symmetrically with each other when viewed from the front-rear direction of the body. The headlamps 77R and 77L are connected to each other by a connecting member 77J located on the back surface 76g side of the front cover 76 in a state of being provided on the front cover 76. The connecting member 77J is formed in a plate shape extending in the left-right direction of the machine body. The connecting member 77J has a plurality of ribs 77j extending in the left-right direction of the body with an interval in the up-down direction of the body. The rib 77j protrudes toward the rear side of the aircraft.

  Each of the headlamps 77R and 77L includes a light source 77a, a reflecting member 77b, and a headlamp cover 77c.

  The light source 77a is a source that generates light, and is a so-called bulb. As the light source 77a, for example, an incandescent bulb, a halogen lamp, an HID (High Intensity Discharge) lamp, an LED (Light Emitting Diode) lamp, or the like can be used. The light source 77a in the first embodiment is an incandescent bulb (filament light bulb) that can be driven by DC power from a battery without having a constant power circuit or a constant current circuit.

  The light source 77a is located on the center side of the body of the front cover 76 in the left-right direction of the body when viewed from the front-rear direction of the body with the headlamp 77 provided on the front cover 76. The light source 77a is provided at a position that does not overlap a front handle 79 (see FIG. 3), which will be described later, when viewed from the front-rear direction of the body. The light source 77a according to the first embodiment is provided on the inner side of the body than the front handle 79 in the longitudinal direction of the body. The light source 77a is accommodated in the light source accommodating portion 77d.

  The light source housing portion 77d is formed in a bottomed cylindrical shape with the light source mounting portion 77e as a bottom portion. The light source housing portion 77d has a bottomed cylindrical shape protruding toward the rear side of the machine body. The light source accommodating portion 77d is configured to be able to regularly reflect light from the light source 77a in a state where the light source 77a is accommodated. A metal film such as aluminum is formed on the inner portion (the portion corresponding to the inside of the cylinder) of the light source housing portion 77d by, for example, vacuum deposition or sputtering. That is, the inner part of the light source housing part 77d has a mirror shape. The light source mounting portion 77e, which is the bottom of the light source housing portion 77d, has a curved surface that curves from the rear side of the aircraft toward the front side of the aircraft as it goes from the outside of the aircraft to the inside of the aircraft. A light source mounting hole 77f for detachably mounting the light source 77a is formed in the light source mounting portion 77e.

  The reflection member 77b is a member that reflects light from the light source 77a. The reflection member 77b is located on the outer side of the light source 77a of the front cover 76 when viewed from the front-rear direction of the body, and is located above the light source 77a of the front cover 76 when viewed from the left-right direction of the body. In the first embodiment, the reflecting member 77b has its rear end located on the front side of the main speed change operation member 74 and the planting operation member 75, and its outer end in the left-right direction of the fuselage. Located on the side of the direction. The reflection member 77b is provided around the light source housing portion 77d. The reflecting member 77b has a curved surface that curves from the front side of the fuselage toward the rear side of the fuselage as it goes from the inner side of the fuselage to the outer side of the fuselage, and from the outer side of the fuselage toward the upper side of the fuselage. The reflection member 77b can reflect the light of the light source 77a toward the outer side and the upper side of the front cover 76 in a state where the light source 77a is accommodated in the light source accommodating portion 77d. A metal film such as aluminum is formed on the outer surface of the bonnet 71 in the reflecting member 77b by, for example, vacuum deposition or sputtering. A plurality of elongated protrusions (ribs) (not shown) that reflect the light of the light source 77a toward the outer side and the upper side of the body are formed on the surface of the reflection member 77b in the first embodiment. That is, the reflecting member 77b can reflect the light of the light source 77a toward the outside of the body and the top of the body by irregularly reflecting the light of the light source 77a.

  Further, a rim portion 77g that contacts the back surface 76g around the opening 76f is provided on the periphery of the reflecting member 77b.

  Further, the reflecting member 77b has a reflecting portion 77h. The reflection part 77h is located in the reflection member 77b at the rear end part of the fuselage and the outer edge part of the fuselage in the left-right direction of the fuselage. The reflecting portion 77h is a projection in which a portion of the reflecting member 77b located at the rear end of the fuselage and the outer end of the fuselage in the left-right direction of the fuselage protrudes like a dome and tilts downward. Similar to the reflecting member 77b, the reflecting portion 77h is formed with a plurality of elongated protrusions (ribs) (not shown) and a metal film such as aluminum. The reflecting portion 77h protrudes from the reflecting member 77b, and can irregularly reflect light emitted from the outside of the traveling vehicle body 2 on the side of the machine body. That is, when the light is irradiated from the outside in the direction from the outside of the body toward the center of the body in the left-right direction of the body, the reflecting portion 77h reflects the light in a direction opposite to the irradiation direction by irregularly reflecting the light. . The light emitted from the outside in the first embodiment is, for example, light emitted from a headlamp such as another work machine or an automobile.

  The headlamp cover 77c is a member that is located on the outer side of the machine body from the light source 77a and the reflection member 77b, and is a cover member that covers the light source 77a and the reflection member 77b. The headlamp cover 77c is made of, for example, transparent glass or synthetic resin, and is configured to be translucent. The headlamp cover 77c is formed in a shape corresponding to the reflecting member 77b, and has a shape corresponding to the curvature of the surface 76j of the front cover 76. Thereby, the headlamp cover 77c has a design with a sense of unity with the front cover 76. The headlight cover 77c is formed with a bulging portion 77i that bulges in a dome shape at a position corresponding to the reflecting portion 77h.

  In the work vehicle 1-1 according to the first embodiment, an adjacent marker 78 (see FIG. 3) is provided on the front side of the body in the floor step 8 and on the outside of the body in the left-right direction. The adjacent marker 78 has a right adjacent marker 78 a disposed on the right side of the vehicle body of the traveling vehicle body 2 and a left adjacent marker 78 b disposed on the left side of the vehicle body of the traveling vehicle body 2. Each adjacent marker 78a, 78b is provided at a position overlapping the front wheel 3 (see FIG. 1) when viewed from the left-right direction of the body. Each adjacent marker 78a, 78b has a marking bar 78c (see FIG. 3) that can be positioned above the seedling on the farm field adjacent to the traveling vehicle body 2 when viewed from above and below the body during planting work. The marking rod 78c in the first embodiment is located on the front side of the vehicle body of the traveling vehicle body 2 and on the outside of the vehicle body in the left-right direction of the vehicle body of the front cover 76. The indicator rod 78c can be irradiated with light from the headlamp 77.

  In the work vehicle 1-1 according to the first embodiment, a front handle 79 (see FIGS. 1 and 3) for operating the traveling vehicle body 2 is provided in the traveling vehicle body 2 on the front side of the vehicle body from the front cover 76. It has been. The front handle 79 is, for example, used when the traveling vehicle body 2 crosses a fence in the field, when the traveling vehicle body 2 is loaded onto or unloaded from a truck bed, or when the traveling vehicle body 2 climbs or descends a steep inclined surface. It is a handle for suppressing the lifting of. The front handle 79 is located on the front side of the aircraft with respect to the headlamp 77. The front handle 79 is formed in an annular shape when viewed from the front-rear direction of the body. The front handle 79 in the first embodiment is formed in a substantially rectangular frame shape when viewed from the front-rear direction of the body. The front handle 79 has a frame-shaped portion positioned on the outer side of the body with respect to the light source 77a in the longitudinal direction of the body.

  Further, in the work vehicle 1-1 according to the first embodiment, the brake pedal 18 that brakes the traveling of the traveling vehicle body 2 on one side of the floor step 8 with the bonnet 71 sandwiched in the left-right direction of the body (see FIG. 2). ) Is provided. The brake pedal 18 is provided on the right side of the body of the floor step 8 with the bonnet 71 interposed therebetween. The brake pedal 18 has a lock mechanism (not shown) that holds the state (braking state) when the operator steps on the brake pedal 18. The brake pedal 18 is released from the braking state when an unlocking pedal (not shown) adjacent to the front side of the body of the brake pedal 18 is stepped on by an operator.

  Further, in the floor step 8, a spare seedling frame 80 on which a seedling can be placed is provided on the other side of the hood 71 in the left-right direction of the machine body. The preliminary seedling frame 80 is provided on the left side of the body of the floor step 8 with the bonnet 71 interposed therebetween. That is, the preliminary seedling frame 80 is provided on the opposite side of the floor step 8 from the brake pedal 18 side with the bonnet 71 interposed therebetween. The preliminary seedling frame 80 includes a preliminary seedling mount 81 (see FIG. 3), a support 82 (see FIG. 3), and a rotation mechanism 83 (see FIG. 3).

  The preliminary seedling stage 81 is for placing seedlings (mat-like seedlings with soil) supplied to the seedling planting unit 30. The preliminary seedling stage 81 has a single plate shape on which a seedling can be placed. The preliminary seedling stage 81 is supported so as to be rotatable around the support 82. The preliminary seedling stage 81 is located at the upper end of the machine body in the preliminary seedling frame 80. The preliminary seedling stage 81 in the first embodiment is rotated around the support 82 so that it does not overlap with the floor step 8 (see FIG. 2) in the vertical direction of the machine body (the posture in the solid line shown in FIG. 2). ) And a storage posture (at a two-dot chain line shown in FIG. 2) overlapping with the floor step 8.

  The working posture in the first embodiment is that the outer end of the body in the left-right direction of the body is located outside the body of the marking bar 78c (see FIG. 3) and outside the floor step 8 (see FIG. 2) in the left-right direction of the body. This is an attitude in which the airframe inner end in the left-right direction of the airframe is positioned on the inner side of the airframe and on the outer side of the floor step 8 in the left-right direction of the airframe. The storage posture in the first embodiment is a posture in which the outer end portion of the airframe in the left-right direction of the airframe is located on the outer side of the airframe with respect to the floor step 8 and on the inner side of the airframe with respect to the marking rod 78c. The posture is such that the inner end of the fuselage is positioned inside the fuselage with respect to the floor step 8 and inside the fuselage with respect to the marking bar 78c in the left-right direction of the fuselage. Further, in the storage posture in the first embodiment, the position of the outer side edge of the spare seedling mount 81 in the left and right direction of the machine is the position of the outer side edge (left side edge of the machine) in the left and right direction of the seedling planting unit 30. It becomes the position inside the fuselage rather than the position.

  In addition, the spare seedling platform 81 is located on the lower side of the upper body of the steering handle 73 and the main speed change operation member 74 and on the upper side of the upper side of the upper body of the bonnet 71 in the left-right direction of the body. positioned. In other words, the upper end position of the spare seedling mount 81 is lower than the upper end positions of the steering handle 73 and the main transmission operation member 74. Therefore, the upper body position of the spare seedling frame 80 is lower than the upper body positions of the steering handle 73 and the main speed change operation member 74.

  The preliminary seedling stage 81 in the first embodiment has a rotation operation unit 81 a for rotating the preliminary seedling stage 81 with respect to the support 82. The rotation operation unit 81a is a knob that can be gripped by an operator. The rotation operation unit 81a is provided so as to protrude from the preliminary seedling stage 81 to the upper side of the machine body. The rotation operation unit 81a is disposed so as to be positioned at the inner end portion of the machine body in the working posture and to be positioned at the outer end portion of the aircraft body in the storage posture when viewed in the vertical direction. The upper end position of the machine body of the rotation operation unit 81a is lower than the upper end positions of the machine body of the steering handle 73 and the main transmission operation member 74.

  The support 82 is erected on the floor step 8. The support 82 supports the preliminary seedling stage 81 via a rotation mechanism 83 so as to be rotatable. The support 82 is fixed to the floor step 8.

  The rotation mechanism 83 is fixed to the upper end of the body of the support 82. The rotation mechanism 83 supports the preliminary seedling stage 81 so as to be rotatable around the support 82. The rotation mechanism 83 according to the first embodiment restricts the rotation of the preliminary seedling stage 81 around the support 82 when the preliminary seedling support 81 is rotated around the support 82 to the working posture or the storage posture. A locking mechanism (not shown). That is, the rotation mechanism 83 can hold the preliminary seedling stage 81 in the working posture or the storage posture. The lock mechanism can be unlocked by, for example, pulling the rotation operation unit 81a upward when the spare seedling stage 81 is in the working posture or the storage posture.

  The work vehicle 1-1 according to the first embodiment is configured as described above, and the operation thereof will be described below. When the work vehicle 1-1 travels, the power generated by the engine 6 is transmitted to the belt-type power transmission mechanism 12 and the hydraulic continuously variable transmission 13, and the rotational speed and direction selected by the operator with the main transmission operation member 74. Is output from the hydraulic continuously variable transmission 13. The power output from the hydraulic continuously variable transmission 13 is transmitted to the transmission case 14 and is shifted to a rotational speed suitable for the traveling speed during road driving or planting work. Output to the wheel 4 side.

  Further, during the planting operation of the work vehicle 1-1, a part of the power output from the mission case 14 is transmitted to the seedling planting unit 30 by a planting drive shaft (not shown), and the seedling planting unit 30 Used for planting work. The power transmitted to the seedling planting unit 30 is transmitted to the planting transmission case 43 of the seedling planting device 40. The power transmitted to the planting transmission case 43 is transmitted to the planting shaft (not shown) via a chain drive mechanism (not shown) provided in the planting transmission case 43. The planting shaft is rotated by the transmitted power, and rotates the planting basket 41 connected to the planting shaft. The planting basket 41 sequentially takes the seedlings placed on the seedling placement stand 31 while rotating relative to the rotary case 42 and sequentially implants them on the field.

  Further, when planting the work vehicle 1-1, water and mud may jump from the farm field side to the bonnet 71 side. Here, the distance d in the longitudinal direction between the lower side of the body of the front cover 76 and the front side of the floor step 8 is a bent portion that causes the front side of the front cover 76 and the lower side of the body to tilt downward toward the floor step 8. Since it is reduced by 76b, it can suppress that the water and mud which jump from a farm field penetrate | invade in the bonnet 71. FIG.

  Moreover, at the time of planting work vehicle 1-1, heat is generated from the interior equipment. Here, a gap g is formed between the upper body of the front cover 76 and the upper body of the bonnet 71 in the longitudinal direction of the body, so that the heat inside the bonnet 71 is released to the outside. be able to. Thereby, overheating of interior equipment can be prevented.

  In addition, the headlamp 77 is turned on when the work vehicle 1-1 is planted at night or the like. A reflection member 77b for irregularly reflecting the light of the light source 77a is positioned on the front cover 76 on the outer side of the body in the lateral direction of the body and on the upper side of the body in the vertical direction of the body. As a result, the reflecting member 77b can reflect the light of the light source 77a toward the outside of the body outside the body of the front cover 76 in the left-right direction of the body, and toward the outside of the body above the body of the front cover 76 in the up-down direction. Can be reflected.

  Further, by reflecting the light of the light source 77a toward the side of the vehicle body on the front side of the vehicle body 2 of the traveling vehicle body 2, the light of the light source 77a is applied to the floor step 8 or the field outside the vehicle body side of the vehicle body with respect to the front cover 76. Can be irradiated. In other words, by irradiating the floor step 8 with the light from the light source 77a, the operator can easily move the floor step 8 even in the dark, such as at night, and work efficiency can be improved. In addition, by irradiating light from the light source 77a to the field on the side of the machine body of the traveling vehicle body 2, the state of the field and the position of the seedlings planted on the adjacent strips are visually confirmed even in the dark such as at night. be able to. As a result, maneuvering corresponding to the state of the field, the position of the seedling, and the like can be performed, so that the seedling planting accuracy can be improved.

  Further, by reflecting the light of the light source 77a toward the upper side of the body on the front side of the traveling vehicle body 2, the surroundings of the main transmission operation member 74 and the planting operation member 75 that are outside the body above the body with respect to the front cover 76. Can be irradiated with light from the light source 77a. As a result, even when it is dark such as at night, the main transmission operation member 74 and the planting operation member 75 can be visually confirmed, and the operator who operates the main transmission operation member 74 and the planting operation member 75 can check. The hand can also be confirmed visually. Therefore, since it is easy to confirm the operator's hand even when it is dark, such as at night, the main transmission operation member 74 and the planting operation member 75 are less likely to be erroneously operated, and the seedling planting accuracy can be improved.

  Further, when the work vehicle 1-1 is traveling at night or planting, the headlights of automobiles on the road and other work machines on the farm field are directed from the outside of the machine in the lateral direction of the machine toward the center of the machine. There are cases where light is irradiated in the direction. In such a case, since the reflecting portion 77h is located at the outer end portion of the reflecting member 77b in the left-right direction of the body, the reflecting portion 77h can diffusely reflect the light emitted from the outside. By reflecting the light irregularly by the reflecting portion 77h, it is possible to reflect the light in the direction opposite to the direction of irradiation of the light emitted from the automobile or another working machine. As a result, the presence of the work vehicle 1-1 can be noticed to the driver of the automobile and the workers of other work machines.

  In addition, when the work vehicle 1-1 is traveling at night or when planting, the light source 77a is located on the inner side of the frame of the front handle 79 in the longitudinal direction of the aircraft. The light from the light source 77 a irradiated toward the front side of the vehicle body of the traveling vehicle body 2 is not easily blocked by the front handle 79. That is, since the light from the light source 77a is not easily blocked by the front handle 79, the light from the light source 77a irradiated on the road or the field located in front of the machine body from the front side of the machine body of the traveling vehicle body 2 is applied to the road or field located in front of the machine body. Visibility is improved. As a result, since the moving speed of the traveling vehicle body 2 can be increased, the movement efficiency of the traveling vehicle body 2 can be improved.

  Moreover, since the visibility with respect to the agricultural field located ahead of the body improves, it becomes easy to confirm the state of the agricultural field. As a result, since the maneuvering according to the state of the field can be performed, the seedling planting accuracy can be improved.

  Moreover, the reserve seedling frame 80 is in a working posture during planting work of the work vehicle 1-1. The upper body upper position of the spare seedling frame 80 in the working posture is lower than the upper body position of each of the steering handle 73 and the main speed change operation member 74. Thereby, the field of view of the left side of the vehicle body on the front side of the traveling vehicle body 2 is hardly obstructed by the spare seedling frame 80. Further, since the preliminary seedling frame 80 is provided on the left side of the floor step 8 with the bonnet 71 interposed therebetween, the preliminary seedling frame 80 does not obstruct the view of the right side of the vehicle body on the front side of the traveling vehicle body 2. As a result, it is possible to improve the visibility of the operator sitting on the cockpit 11 to the farm field located on both sides of the traveling vehicle body 2 on the front side of the machine body.

  Even when the work vehicle 1-1 is planted at night or the like, the spare seedling frame 80 is in a working posture, and the headlamp 77 illuminates the front and both sides of the traveling vehicle body 2 on the front side of the machine body. Therefore, it is possible to improve the visibility of the operator sitting on the cockpit 11 to the farm field located on the front side or both sides of the traveling vehicle body 2 on the front side.

  Further, at the time of planting the work vehicle 1-1, the spare seedling frame 80 is in a working posture as in the travel of the work vehicle 1-1, and is located on both sides of the traveling vehicle body 2 on the front side of the machine body. Visibility to the field is improved. In addition, the visibility to the farm field located on both sides of the front side of the vehicle body 2 of the traveling vehicle body 2 is improved, so that an operator sitting on the cockpit 11 can display the marking rod 78c of the adjacent marker 78 and the seedling planted on the adjacent strip. It becomes easy to see. That is, the operator can align the position of the marking bar 78c with respect to the seedling planted on the adjacent strip while visually checking the marking rod 78c and the seedling planted on the adjacent strip. As a result, seedling planting accuracy can be improved.

  Even when the work vehicle 1-1 is planted at night or the like, the spare seedling frame 80 is in a working posture, and the headlamp 77 illuminates the front and both sides of the traveling vehicle body 2 on the front side of the machine body. Therefore, the worker sitting on the cockpit 11 can visually confirm the marking rod 78c and the seedling planted on the adjacent strip. As a result, planting accuracy of seedlings can be improved even at night.

  In addition, when the seedling of the work vehicle 1-1 is replenished, the operator depresses the brake pedal 18 to be held in a braking state (a state where the brake pedal 18 is depressed) by a lock mechanism (not shown). Thereafter, the operator operates the rotation operation unit 81a to change the preliminary seedling frame 80 on which the seedling (mat-like seedling with soil) is placed from the working posture to the storage posture. In a state where the reserve seedling frame 80 is in the stowed posture, the seedling placed on the reserve seedling placing table 81 is supplied to the seedling planting unit 30 by the operator. Thus, when the seedling is replenished to the seedling planting unit 30 from the preliminary seedling mounting table 81, the preliminary seedling frame 80 is in the storage posture, and the preliminary seedling mounting table 81 overlaps the floor step 8 in the vertical direction of the machine body. The spare seedling frame 80 can be brought closer to the operator. As a result, the work efficiency of the seedling replenishment work can be improved.

  Further, since the brake pedal 18 and the unlocking pedal (not shown) are provided on the right side of the machine body and the spare seedling frame 80 is provided on the left side of the machine body, seedlings are replenished to the seedling planting unit 30 from the spare seedling mounting base 81. It is possible to prevent the brake pedal 18 and the unlocking pedal from being stepped on unintentionally by the operator. Thereby, at the time of replenishing seedlings, the traveling vehicle body 2 is prevented from moving unintentionally, and the seedling planting accuracy can be improved.

  Further, since the upper end position of the machine body of the rotation operation unit 81a is lower than the upper body position of each of the steering handle 73 and the main speed change operation member 74, the rotation operation unit 81a is operated to rotate. When the preliminary seedling frame 80 is changed from the working posture state to the stowed posture state, it is possible to suppress interference between the steering handle 73 and the main transmission operation member 74 and the operator. Thereby, it is possible to suppress unintended steering and unintentional gear shifting when the rotation operation unit 81a is rotated.

  In addition, even when the work vehicle 1-1 is replenished with seedlings at night or the like, the spare seedling frame 80 is in the stowed state, and the headlamp 77 illuminates the upper side of the front body of the traveling vehicle body 2. Therefore, the seedlings placed on the preliminary seedling placing table 81 can be visually confirmed. Further, the floor lamps 8 located on both sides of the traveling vehicle body 2 on the front side of the machine body are illuminated by the headlamps 77, so that the operator can move while checking his / her feet. As a result, the work efficiency of the seedling replenishment work can be improved even at night.

  In addition, the brake pedal 18 and the unlocking pedal and the spare seedling frame 80 are provided on the opposite sides, and the floor step 8 is illuminated by the headlight 77. The release pedal can be visually confirmed. As a result, the traveling vehicle body 2 can be prevented from unintentionally moving at the time of seedling replenishment even at night, and the seedling planting accuracy can be improved.

  In addition, when the work vehicle 1-1 is loaded and unloaded from the truck or stored in a warehouse or the like, the reserve seedling frame 80 is changed from the working posture to the stowed posture. When the preliminary seedling frame 80 is in the stowed state, the preliminary seedling stand 81 overlaps the floor step 8 when viewed from above and below the fuselage. Further, in the state in which the reserve seedling frame 80 is in the stowed posture, the position of the left side edge of the machine body left side of the preliminary seedling table 81 in the left and right direction of the machine body is located on the inner side of the machine body from the left side edge part of the machine body. As a result, the width of the work vehicle 1-1 in the left-right direction of the machine body can be suppressed. That is, by reducing the width of the work vehicle 1-1 in the left-right direction of the machine body, loading and unloading work and storage work can be facilitated.

  The work vehicle 1-1 according to the first embodiment includes a traveling vehicle body 2, a floor step 8 provided on the front side of the vehicle body of the traveling vehicle body 2, a bonnet 71 provided on the front side of the aircraft body and on the center side of the aircraft body of the floor step 8. A main transmission operation member 74 and a planting operation member 75 provided on the upper side of the bonnet 71, a front cover 76 provided on the front side of the bonnet 71 and covering the opening space formed on the front side of the bonnet 71; And a headlamp 77 provided on the front side of the body of the cover 76. The headlamp 77 has a light source 77a that generates light and a reflection member 77b that reflects at least the light of the light source 77a to the outside of the machine body. The light source 77a is located on the center side of the body in the longitudinal direction of the body. The reflection member 77b is located on the outer side of the body with respect to the light source 77a in the longitudinal direction of the body, and is located on the upper side of the body with respect to the light source 77a in the lateral direction of the body. By these, at the time of planting work at night or the like, it is possible to irradiate the light of the headlamp 77 on the front side of the traveling body 2 on the front side of the traveling body 2, on both sides of the body and above the body. As a result, it is possible to improve the visibility of the traveling vehicle body 2 on the front side of the vehicle body in front of the vehicle body, on both sides of the vehicle body, and above the vehicle body.

  The headlight 77 has a reflecting portion 77h that can reflect at least a part of light emitted from the outside in the left-right direction of the aircraft in the direction from the outside of the aircraft toward the center of the aircraft in the opposite direction. 77h is located at the end of the reflecting member 77b outside the machine body. Thereby, the light which headlights, such as another work machine and a motor vehicle located in the side of traveling body 2, emit can be reflected toward the work machine, a car, etc. As a result, at night or the like, the presence of the work vehicle 1-1 can be noticed to workers of other work machines and automobile drivers.

  Further, a front handle 79 for operating the traveling vehicle body 2 is provided on the front side of the vehicle body 2 relative to the front cover 76 of the traveling vehicle body 2, and the front handle 79 is formed in an annular shape when viewed from the front-rear direction of the vehicle body. Includes a right headlight 77R provided on the right side of the body of the front cover 76 and a left side headlight 77L provided on the left side of the body of the front cover 76. The right headlamp (77R) and the left headlamp 77L are connected to each other by a connecting member 77J located on the back surface 76g side of the front cover 76 in a state of being provided on the front cover 76. The light source 77a provided in each of the right headlight 77R and the left headlight 77L is provided at a position that does not overlap the front handle 79 when viewed in the longitudinal direction of the machine body. As a result, the mechanical strength of the headlamp 77 can be improved, and the light emitted from the light source 77a to the front of the machine body can be made difficult to block. As a result, the visibility in front of the aircraft can be improved during planting work at night or the like.

  In addition, the distance d in the front-rear direction of the airframe between the lower side of the front cover 76 and the front side of the floor step 8 is a bent portion 76 b that tilts the front side and the lower side of the front cover 76 downward and downward toward the floor step 8. Has been reduced. A gap g is formed between the upper body of the front cover 76 and the upper body of the bonnet 71 in the longitudinal direction of the body so as to communicate the inside and outside of the bonnet 71. By these, it can suppress that the water and mud which jump from a farm field penetrate | invade in the bonnet 71, and can discharge | release the heat | fever in the bonnet 71 outside.

  In addition, at least one brake pedal 18 that brakes the traveling of the traveling vehicle body 2 is provided on one side of the floor step 8 with the bonnet 71 sandwiched in the left-right direction of the machine body. Is provided with a spare seedling frame 80 on which seedlings can be placed. The preliminary seedling frame 80 is supported so as to be able to turn around a support 82 standing on the floor step 8. When the reserve seedling frame 80 is turned around the support 82, at least a part of the reserve seedling frame 80 overlaps with the floor step 8. Accordingly, it is possible to suppress erroneous operation on the brake pedal 18 and to reduce the width of the work vehicle 1-1 in the left-right direction of the machine body when replenishing seedlings from the reserve seedling frame 80.

  A steering handle 73 for steering the traveling vehicle body 2 is provided on the upper side of the body of the bonnet 71, and the steering handle 73 is located on the center side of the body of the bonnet 71 in the left-right direction of the body. The main speed change operation member 74 is provided on the spare seedling frame 80 side of the bonnet 71 in the left and right direction of the body, and the planting operation member 75 is provided on the brake pedal 18 side of the bonnet 71 in the left and right direction of the body. The upper body position of the spare seedling frame 80 is lower than the upper body position of each of the steering handle 73 and the main transmission operation member 74. Accordingly, the spare seedling frame 80 is less likely to obstruct the field of view of the traveling vehicle body 2 on the front side and the left side of the body. As a result, it is possible to improve visibility to the farm field from both sides of the front side of the traveling vehicle body 2.

  Further, the preliminary seedling frame 80 is supported rotatably with respect to the support 82, and a single plate-shaped preliminary seedling mounting base 81 on which the seedling is placed, and the preliminary seedling mounting base 81 with respect to the support 82. And a rotation operation unit 81a for performing a rotation operation. The upper end position of the fuselage of the rotation operation unit 81a is lower than the upper end positions of the fuselage of the steering handle 73 and the main transmission operation member 74. Thus, it is possible to prevent the steering handle 73 and the main transmission operation member 74 from interfering with the operator when operating the rotation operation unit 81a. As a result, it is possible to prevent the main transmission operation member 74 from unintentionally switching from the neutral position (stop position) to the forward movement position or the reverse movement position during the operation of replenishing the seedling from the preliminary seedling frame 80.

  In the work vehicle 1-1 according to the first embodiment, an incandescent bulb is used as the light source 77a. However, the present invention is not limited to this. When high brightness is required, an HID bulb is used or power saving is achieved. If necessary, an LED bulb may be used, or an incandescent bulb, an HID bulb, or an LED bulb may be combined depending on the planting work environment of the work vehicle 1-1.

  In the work vehicle 1-1 according to the first embodiment, a plurality of elongated protrusions (ribs) that reflect light are formed on the surface of the reflecting member 77b. As long as the light from the light source 77a can be irradiated upward, it may be configured as a diffuse reflector such as a so-called reflex plate, and the surface of the reflective member 77b is a mat such as a satin pattern or a texture pattern. It may be in the shape.

  Further, in the work vehicle 1-1 according to the first embodiment, the reflecting portion 77h is formed by projecting the reflecting member 77b in a dome shape, but a retroreflecting material is applied to the surface of the reflecting portion 77h. It can also be configured. When comprised in this way, the presence of the working vehicle 1-1 can be made to be aware of the worker of another working machine or the driver of a car more reliably.

  Further, in the work vehicle 1-1 according to the first embodiment, the brake pedal 18 is provided on the right side of the traveling vehicle body 2 with the bonnet 71 interposed therebetween. However, the present invention is not limited thereto, and the brake pedal 18 has the bonnet 71 interposed therebetween. The spare seedling frame 80 may be provided on the left side of the traveling vehicle body 2 and on the right side of the traveling vehicle body 2 with the bonnet 71 interposed therebetween. That is, it is only necessary that the brake pedal 18 and the spare seedling frame 80 are disposed on opposite sides of the bonnet 71.

  Moreover, although the work vehicle 1-1 according to the first embodiment does not have the accelerator pedal for increasing or decreasing the rotational speed of the engine 6, it may have such an accelerator pedal. In such a case, the accelerator pedal is preferably provided on the side opposite to the spare seedling frame 80 side with the bonnet 71 interposed therebetween. Thereby, when replenishing seedlings from the reserve seedling frame 80 to the seedling planting unit 30, erroneous operation on the accelerator pedal can be suppressed.

[Modification of Embodiment 1]
The work vehicle illustrated here is provided with a reserve seedling frame 80 as in the work vehicle 1-1 according to the first embodiment.

  In the modified example of the work vehicle according to the first embodiment, the upper end position of the spare seedling mount 81 is higher than the upper end positions of the steering handle 73 and the main transmission operation member 74. In other words, in the modified example of the work vehicle according to the first embodiment, the length of the support 82 in the vertical direction of the machine body is long so that the machine body upper end position of the spare seedling stage 81 is positioned higher than the machine body upper end position of the steering handle 73. It has become a thing.

  In the modified example of the work vehicle according to the first embodiment configured as described above, the distance in the vertical direction between the preliminary seedling stage 81 and the floor step 8 can be widened during traveling or planting work. Therefore, it is possible to make it difficult for the preliminary seedling frame 80 to obstruct the field of vision of the traveling vehicle body 2 on the front side of the body. As a result, it is possible to improve the visibility with respect to the farm field from the side of the front body of the traveling vehicle body 2.

[Embodiment 2]
The work vehicle 1-2 according to the second embodiment has substantially the same configuration as the work vehicle 1-1 according to the first embodiment, but a headlamp 77 is provided to the front of the monitor panel 72. It is characterized in that a marker lamp 90 is provided at the rear end of the aircraft. Since other configurations are the same as those of the first embodiment, the description thereof is omitted and the same reference numerals are given.

  FIG. 9 is a plan view showing a work vehicle according to the second embodiment. A headlamp 77 is provided on the front cover 76 of the work vehicle 1-2 according to the second embodiment.

  The headlamp 77 includes a light source 77a (see FIG. 6), a reflecting member 77b, and a headlamp cover 77c (see FIG. 6). The reflection member 77b extends to the upper end of the body of the front cover 76. That is, the reflecting member 77b in the second embodiment is located on the rear side and the upper side of the fuselage in the front cover 76 relative to the reflecting member 77b in the first embodiment. In the second embodiment, the reflecting member 77b has a so-called tapered shape (pointed shape) in which the width in the left-right direction of the airframe is narrowed as viewed from the front of the airframe as it goes from the front side of the airframe to the rear side of the airframe.

  A marker lamp 90 is provided at the rear end of the body of the reflecting member 77b. The marker lamp 90 includes a right marker lamp 91 provided on the right headlamp 77R and a left marker lamp 92 provided on the left headlamp 77L. The right marker lamp 91 is a lamp for notifying that the right drawing marker (not shown) out of the pair of left and right drawing markers (not shown) is on the field, and when the right drawing marker is on the field. It is a lamp that lights up. The left marker lamp 92 is a lamp for informing that the left drawing marker (not shown) of the pair of left and right drawing markers (not shown) is on the field, and when the left drawing marker is on the field. It is a lamp that lights up. That is, when the pair of left and right drawing markers are on the field, the right marker lamp 91 and the left marker lamp 92 are lit.

  The work vehicle 1-2 according to the second embodiment is configured as described above, and the operation thereof will be described below. At the time of planting work of the work vehicle 1-2 during the day, the visibility of various monitors embedded in the monitor panel 72 may be reduced if sunlight is irradiated from the upper side of the machine body to the monitor panel 72 side. In such a case, the marker lamp 90 provided in the headlamp 77 is visually recognized by an operator sitting on the cockpit 11 because the reflecting member 77b diffuses the light of the marker lamp 90 when the marker lamp 90 is lit. Can be confirmed. As a result, it is possible to easily confirm the state of the pair of left and right drawing markers (the state accommodated with respect to the traveling vehicle body 2 or the state of being out of the field) in an environment where sunlight is irradiated. Therefore, it is possible to suppress erroneous operations and forgetting operations on the pair of left and right drawing markers.

  Further, since the reflecting member 77b extends to the upper end of the body of the front cover 76 and has a pointed shape, light is emitted from the headlamp 77 toward both sides of the body on the front side of the body of the traveling vehicle body 2. be able to. Thereby, it becomes easy for an operator to visually confirm the farm field on both sides of the vehicle body on the front side of the vehicle body 2.

[Embodiment 3]
The work vehicle 1-3 according to the third embodiment has substantially the same configuration as that of the work vehicle 1-1 according to the first embodiment, but the spare seedling frame 80 is located on the vehicle body center side in the vehicle body 2 front end and the vehicle body left-right direction. There is a feature in the point to support. Since other configurations are the same as those of the first embodiment, the description thereof is omitted and the same reference numerals are given.

  FIG. 10 is a plan view showing a work vehicle according to the third embodiment. A preliminary seedling frame 80 is supported on the front end of the traveling vehicle body 2 of the traveling vehicle 1-3 of the work vehicle 1-3 according to the third embodiment and on the center side of the aircraft in the lateral direction of the aircraft.

  The preliminary seedling frame 80 includes a preliminary seedling mount 81, a support 82, a rotation mechanism 83, and a support mechanism 84. The support 82 supports the preliminary seedling stage 81 so as to be rotatable via a rotation mechanism 83, and is supported so as to be rotatable in the left-right direction of the machine body with respect to the support mechanism 84. When the support column 82 is rotated to the right side of the machine body with respect to the support mechanism 84, the preliminary seedling stage 81 can be arranged on the right side of the machine body with the bonnet 71 in the left-right direction of the machine body. When the support column 82 is rotated to the left side of the machine body with respect to the support mechanism 84, the preliminary seedling stage 81 can be arranged on the left side of the machine body with the bonnet 71 in the left-right direction of the machine body.

  In addition, the support 82 has a state in which the spare seedling stage 81 is arranged on the right side of the machine body (a state indicated by a solid line in FIG. 10: a right side arrangement state). Can be supported so that they overlap when viewed from above and below the fuselage. In the state where the preliminary seedling stage 81 is arranged on the left side of the machine body (the state indicated by the two-dot chain line: the left side arrangement state) in FIG. Can be supported so that they overlap when viewed from above and below the fuselage.

  The support mechanism 84 supports the support column 82 so as to be rotatable in the left-right direction of the vehicle body 2 with respect to the traveling vehicle body 2. The support mechanism 84 has a lock mechanism (not shown) so that the preliminary seedling stage 81 is held in the right side arrangement state or the left side arrangement state. For example, the lock mechanism can be configured such that the lock is released in accordance with the rotation operation of the rotation operation unit 81a (see FIG. 3) of the preliminary seedling stage 81.

  The work vehicle 1-3 according to the third embodiment is configured as described above, and the operation thereof will be described below. At the time of planting the work vehicle 1-3, seedlings (mat-like seedlings with soil) are supplied from the outside of the machine body such as a basket in the field to the spare seedling stage 81 of the spare seedling frame 80, and the seedlings are transferred from the preliminary seedling stage 81. The seedling planting unit 30 is replenished. Here, when the seedling is supplied from the outside of the machine body to the preliminary seedling stage 81, the preliminary seedling stage 81 can be changed to a state in which the seedling can be easily supplied in the right side arrangement state or the left side arrangement state. In addition, when the seedling is replenished to the seedling planting unit 30 from the spare seedling placing stand 81, the spare seedling placing stand 81 can be changed to a state in which the seedling can be easily replenished in the right side arrangement state or the left side arrangement state. . By these, supply work and replenishment work can be performed from the direction with good field conditions and workability. As a result, work efficiency can be improved.

[Embodiment 4]
The work vehicle 1-4 according to the fourth embodiment has substantially the same configuration as the work vehicle 1-1 according to the first embodiment, except that a pair of left and right front wheels 3 (see FIG. 1) is differentially locked by the front handle 79. There are features. Since other configurations are the same as those of the first embodiment, the description thereof is omitted and the same reference numerals are given.

  FIG. 11 is a front view showing a front handle of the work vehicle according to the fourth embodiment. A work vehicle 1-4 according to the fourth embodiment includes a front handle 79.

  The front handle 79 is provided on the front side of the machine body from the front cover 76 (see FIG. 1). The front handle 79 is formed in a substantially rectangular frame shape when viewed from the front-rear direction of the machine body. The front handle 79 includes a base portion 79a and a telescopic portion 79b that can expand and contract in the vertical direction of the machine body relative to the base portion 79a.

  The base 79a is supported so as to be rotatable with respect to the traveling vehicle body 2 in the longitudinal direction of the vehicle body. A tube fixing portion 79c to which the protective tube 79e is fixed is provided at the left end portion of the base 79a.

  The stretchable part 79b is supported so as to be stretchable in the vertical direction of the machine body with respect to the base 79a. In the fourth embodiment, the stretchable part 79b is inserted into the base part 79a. A wire fixing portion 79d to which the differential lock wire 79f is fixed is provided at the left end of the expansion / contraction portion 79b. When the expansion / contraction part 79b moves from the base part 79a side to the upper side of the machine body, it pulls the differential lock wire 79f. The telescopic part 79b is not pulled out from the base 79a when moving from the base 79a side to the upper side of the machine body.

  Here, the differential lock wire 79f is a wire that can be switched to a locked state in which the pair of left and right front wheels 3 and rear wheels 4 are differentially locked, or in a released state in which the differential lock of the pair of left and right front wheels 3 and rear wheels 4 is released. The differential lock wire 79f is inserted into the protective tube 79e, one end is fixed to the wire fixing portion 79d, and the other end is connected to a differential lock arm (not shown). The differential lock wire 79f locks the pair of left and right front wheels 3 from the unlocked state when the telescopic portion 79b moves from the base 79a side to the upper side of the machine body (from the solid line state shown in FIG. 11 to the state shown by the two-dot chain line). Switch to state.

  The work vehicle 1-4 according to the fourth embodiment has the above-described configuration, and the operation thereof will be described below. When the work vehicle 1-4 is over the ridge or escapes from the field, the operator holds the front handle 79 to prevent the traveling vehicle body 2 from lifting. Further, when the operator pulls the expansion / contraction portion 79b, the pair of left and right front wheels 3 and rear wheels 4 are in a locked state in which they are differentially locked. Thereby, it is possible to prevent the pair of left and right front wheels 3 and rear wheels 4 from slipping at the time of crossing the ridge or escaping from the field. As a result, work efficiency can be improved.

  Further, when the extension / contraction part 79b is pulled, the part where the operator holds the extension / contraction part 79b moves away from the base part 79a. Therefore, the lift of the traveling vehicle body 2 can be suppressed with a light load by the lever principle.

[Modification of Embodiment 4]
The work vehicle illustrated here is provided with a front handle 79 as in the work vehicle 1-4 according to the fourth embodiment. FIG. 12 is a front view showing a front handle of a modified example of the work vehicle according to the fourth embodiment.

  In the modified example of the work vehicle according to the fourth embodiment, a body stop switch 79g is provided in the telescopic part 79b. The airframe stop switch 79g is a switch for stopping the engine 6. The airframe stop switch 79g is provided at the upper end of the airframe in the telescopic portion 79b. The aircraft stop switch 79g in the present modification is located on the left side of the aircraft with respect to the center marker 19 in the lateral direction of the aircraft.

  In the modified example of the work vehicle according to the fourth embodiment configured as described above, even when the telescopic part 79b is pulled when crossing the ridge or when escaping from the field (shown by a two-dot chain line from the state shown by the solid line in FIG. 12). Even if it is in a state), the position of the airframe stop switch 79g relative to the expansion / contraction part 79b does not change. Thereby, regardless of the expansion / contraction of the expansion / contraction part 79b, the same operation can be performed when operating the airframe stop switch 79g. As a result, when it becomes necessary to stop the engine 6, the airframe stop switch 79g can be reliably operated regardless of the expansion / contraction of the expansion / contraction part 79b.

  In the modified example of the work vehicle according to the fourth embodiment, the airframe stop switch 79g is provided in the telescopic portion 79b. However, similarly to the work vehicle 1-4 according to the fourth embodiment, the differential lock wire 79f is provided in the telescopic portion 79b. You may comprise so that it may fix.

1-1 to 1-4 Work vehicle 2 Traveling vehicle body 8 Floor step 18 Brake pedal 71 Bonnet 73 Steering handle 74 Main transmission operation member 75 Planting operation member 76 Front cover 76b Bending portion 76g Back surface 77 Headlight 77J Connecting member 77L Left side Headlight 77R Right headlight 77a Light source 77b Reflective member 77h Reflector 79 Front handle 80 Spare seedling frame 81 Spare seedling stage 81a Rotating operation part 82 Post d interval g Gap

Claims (8)

A traveling vehicle body,
A floor step provided on the front side of the vehicle body of the traveling vehicle body;
A bonnet provided on the front side and the center side of the aircraft body of the floor step;
A main transmission operation member and a planting operation member provided on the upper side of the bonnet body,
A front cover that is provided on the front side of the bonnet body and covers an opening space formed on the front side of the bonnet body;
A headlamp provided on the front side of the body of the front cover;
With
The headlamp includes a light source that generates light, and a reflection member that reflects at least light from the light source to the outside of the fuselage,
The light source in the aircraft longitudinal direction as viewed, together with the centrally located side in the horizontal direction of the machine body, to form a light source housing provided with a light source, the reflecting member is provided around the light source housing,
In addition, a front handle for operating the traveling vehicle body at a position that does not overlap the light source when viewed from the front-rear direction of the vehicle body is provided on the vehicle body front side of the front cover of the traveling vehicle body,
The front handle is formed in a substantially rectangular frame shape when viewed from the front-rear direction of the fuselage, and has a base, an extendable part that can move in the vertical direction of the fuselage with respect to the base, and one end connected to the extendable part. A differential lock wire connected to the differential lock arm at the other end,
A work vehicle that can be switched to a locked state in which the pair of left and right front wheels and rear wheels are differentially locked or a released state in which the differential lock of the pair of left and right front wheels and rear wheels is released by the movement of the telescopic portion . The headlamp has a reflection part capable of reflecting in the opposite direction at least a part of the light emitted from the outside in the left-right direction of the body toward the center of the body from the outside of the body,
The work vehicle according to claim 1, wherein the reflecting portion is located at an end of the reflecting member on the outer side of the body. Before SL headlamp includes a right headlamp provided on the body right of the front cover, and the left headlamp provided on the body left side of the front cover, and
The right headlamp and the left headlamp are connected by a connecting member located on the back side of the front cover in a state of being provided on the front cover,
The said light source provided in each of the said right side headlamp and the said left side headlamp is provided in the position which does not overlap with the said front side handle in the fuselage front-back direction view, The Claim 1 or Claim 2 characterized by the above-mentioned. Work vehicle. The space in the front-rear direction of the airframe between the lower side of the front cover and the front side of the floor step is reduced by a bent portion that tilts the front side of the front cover and the lower side downward toward the floor step. ,
The gap which connects the inside and outside of the bonnet is formed between the machine body upper side of the front cover and the machine body upper side of the bonnet in the longitudinal direction of the machine body. The work vehicle as described in. Among the floor steps, a brake pedal for braking at least the traveling vehicle body is provided on one side of the bonnet in the lateral direction of the body,
Among the floor steps, on the other side across the bonnet in the left-right direction of the body, a preliminary seedling frame on which a seedling can be placed is provided,
The preliminary seedling frame is
It is supported so as to be able to rotate around a support column standing on the floor step,
The work vehicle according to any one of claims 1 to 4, wherein when rotating around the support column, at least part of the work vehicle overlaps with the floor step when viewed in the vertical direction of the machine body. A steering handle for steering the traveling vehicle body is provided on the upper body of the bonnet,
The steering handle is located on the center side of the bonnet in the lateral direction of the body,
The main transmission operation member is provided on the spare seedling frame side in the left-right direction of the bonnet body,
The planting operation member is provided on the brake pedal side in the left-right direction of the bonnet body,
The work vehicle according to claim 5, wherein an upper end position of the spare seedling frame is lower than an upper end position of each of the steering handle and the main speed change operation member. The preliminary seedling frame is supported so as to be rotatable with respect to the support, and a plate-shaped preliminary seedling support on which the seedling is placed, and the preliminary seedling support is rotated with respect to the support. A rotating operation unit for
The upper end position of the body of the turning operation unit is lower than the upper end positions of the body of the steering handle and the main speed change operation member.
The work vehicle according to claim 6. A preliminary seedling frame having a preliminary seedling stage on which a seedling can be placed is provided in the floor step so as to be movable in the left-right direction across the bonnet,
The preliminary seedling frame is
A support mechanism having a lock mechanism that is provided at the front end of the vehicle body of the traveling vehicle body and at the center of the vehicle body in the left-right direction of the vehicle body, and holds the preliminary seedling mount in the right-side arrangement state or the left-side arrangement state;
While supporting the preliminary seedling stage so as to be rotatable via a rotation mechanism, a support column supported to be rotatable in the left-right direction of the machine body with respect to the support mechanism;
With
The column is
In a state where the spare seedling stage is disposed on the right side of the machine body, the preliminary seedling stage is supported so that the right side of the machine body on the front side of the floor step and the preliminary seedling stage are overlapped in the vertical direction of the body. ,
In a state where the preliminary seedling stage is arranged on the left side of the machine body, the preliminary seedling stage is supported so that the left side of the machine body on the front side of the floor step and the preliminary seedling stage are overlapped in the vertical direction of the body.
The work vehicle according to claim 1, wherein the work vehicle is a vehicle.

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