JP5136716B2 - Riding work machine - Google Patents

Description

The present invention relates to a riding work machine .

  In order to make it easier for the driver to perform auxiliary work operations on the work equipment at the rear of the vehicle body only by moving on the side floor on the side, reducing the movement from the position where the driver is seated on the passenger seat, A technique of providing a rear step at the upper end is known (see Patent Document 1).

JP-A-9-28131

  In such a tractor in which the rear step is arranged on the rear upper part of the side floor, the rear step part is widely extended to the left and right outer parts of the vehicle body, so that the support structure becomes unstable, and the rear step is performed from above the rear step. When an auxiliary work is performed on the work machine on the side, the work posture tends to be unstable.

The invention according to claim 1 is a side floor comprising left and right inner side step portions (38) and left and right outer side sub step portions (39) on both left and right sides of a seat case (2) supporting the seat (1). 3), a first rear step (40) is provided at the rear upper part of the side step part (38), and a second rear step (4) is provided at the rear upper part of the sub-step part (39). In the riding work machine, the left and right sides of the left and right rear floor frame (5) supporting the first rear step (40) and the second rear step (4) and the body frame (13) at the lower center of the vehicle body. The support stays (8) are provided on both the left and right sides of the rear floor frame (5), and the support stays (8) are provided with support stays (8). that the provided (12) And riding work machine according to symptoms.

According to the second aspect of the present invention, the left and right support stays (8) support the guard handle (7) extending in the left-right direction above the first rear step (40) and the second rear step (4), The support stay (8) is formed with a crank-shaped bent portion (6) that passes through the rear side of the second rear step (4) and bends forward on the upper side of the second rear step (4). The riding work machine according to claim 1.

According to the third aspect of the present invention, a side arm (42) is provided on the outside of the work support base (12) , a fertilizer hopper (9) is provided at the upper portion, and fertilizer is supplied from the fertilizer hopper (9) at the lower portion. The riding work according to claim 1 or 2 , wherein a fertilizer applying device (11) having a paying-out device (10) is arranged along the rear side of the rear step (4). A machine .

According to the first aspect of the present invention, a line between the left and right sides of the left and right rear floor frame 5 that supports the first rear step 40 and the second rear step 4 and the body frame 13 at the lower center of the vehicle body is provided. Since it is connected at the crossing 14, the support rigidity of the first rear step 40 and the second rear step 4 can be increased, and an operator can step on the first rear step 40 and the second rear step 4 to depress the pressure. It is possible to stabilize the working posture when performing auxiliary work. In addition, the work support base 12 makes it easy to perform fertilizer supply work to the fertilizer hopper 9, and supports the feet of the auxiliary worker to facilitate the auxiliary work.

  In addition to the effect of the invention described in claim 1, the invention described in claim 2 can perform the auxiliary work while holding the guard handle 7 by hand, so that the auxiliary work from the side floor 3 can be stabilized. It can be done easily and safely with the posture. In addition, the work posture can be stabilized when the guard handle 7 is held and auxiliary work is performed.

In the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the side arm 42 is provided on the outside of the work support base 12, so that the narrow space is effectively used. Then, a fertilizer bag for replenishment is placed and supported between the work support 12 and the guard handle 7 part to facilitate the fertilizer replenishment work to the fertilizer hopper 9, or an auxiliary worker It is possible to facilitate the auxiliary work by supporting the feet. Further , the fertilizer application 11 can widen the front-rear width of the upper portion of the fertilizer hopper 9 to increase the capacity of fertilizer accommodation. Further, when a working machine such as a seedling planting device is mounted on the rear side of the vehicle body so as to be able to move up and down, the fertilizer application device 11 is less projected to the rear so as not to obstruct the working machine. Therefore, the front and rear length of the aircraft can be shortened, and the operation and workability can be facilitated.

The side view of a tractor vehicle body part. The top view of the floor part. The rear view of the support stay part. The side view at the time of mounting | wearing with a seedling planting apparatus. The plan view.

  The present invention can be used for a tractor for a management work machine in a riding configuration in which a seedling planting device, a fertilizer application device, and the like are mounted on the rear side of a vehicle body. Hereinafter, description will be made using reference numerals of the drawings according to the embodiments.

  The tractor vehicle body has a front axle housing 15 at the front portion of the vehicle body frame 13, and front and rear wheels 17 that can be steered by a steering handle 16 are mounted on the left and right sides, and a rear axle housing is disposed at the rear portion. 18 and a rear wheel 19 is mounted on both the left and right sides. The front wheels 17 and the rear wheels 19 can travel by being driven in conjunction by an engine 20 mounted in an engine room covered with the seat case 2 under the operation seat 1.

  A transmission case 21 is disposed at the front portion of the front axle housing 15, and a rear frame 22 is erected on the rear end portion of the vehicle body frame 13, and between the transmission case 21 and the rear frame 22. A floor frame 23 made up of a vertical beam, a horizontal beam, etc. is suspended. On the upper side of the floor frame 23, the seat case 2, the center floor 25 between the seat case 2 and the front steering post 24, and the side floors 3 on both the left and right sides thereof are attached and supported.

  The floor frame 23 and the side floor 3 are bent upward at both sides of the rear portion of the seat case 2 to form a step with a raised rear end portion, and maintain a gap portion with the rear wheel 19. And a substantially flat rear step 4 is formed at the rear end. The rear step 4 part is supported by the rear floor frame 5 at the rear end of the floor frame 23.

  A seedling planting device 27 can be connected to the rear side of the vehicle body via a lift link 26 formed of a parallel link, and the lift can be controlled by extending and contracting the lift cylinder 28. This seedling planting device 27 has a center float 29 and a side float 30 and can slide on the soil surface. A seedling planting claw 32 is arranged on the rear side of the seedling planting frame 31 to form a multi-row planting shape. Is provided with a seedling tank 33 inclined over the front upper part, and is configured to be able to reciprocate left and right within a certain width region. The mat-like seedling supplied to the upper end portion of the seedling tank 33 can be planted while being separated by the planting claws 32 acting at the seedling feeding portion while being fed to the rear lower part.

  An auxiliary seedling shelf 35 supported on a front axle housing 15 via a support frame 34 is provided on a side portion of the steering post 24 at the front of the vehicle body, and the seedlings stored in the auxiliary seedling shelf 35 are stored in the seedlings. The tank 33 can be replenished and the seedling planting operation can be performed continuously.

  Here, in the tractor in which the side floors 3 are arranged on the left and right sides of the seat case 2 that supports the seat 1 and the rear step 4 is provided on the upper rear side of the side floor 3, The lower end portion is supported by the rear floor frame 5, the bent portion 6 is formed by bending the upper portion to the upper side of the rear step 4, and the support stay 8 for supporting the guard handle 7 extending in the lateral direction is provided at the upper end portion. It is set as the structure of the rear step support apparatus characterized by this.

  As a result, there is a guard handle 7 above the rear step 4, and the auxiliary work can be performed while holding it by hand, so that the auxiliary work from the side floor 3 can be easily and safely performed in a stable posture. Can be done. In addition, the support stay 8 that supports the guard handle 7 has a bent portion 6 formed at the rear portion of the rear step 4 and protrudes directly above the rear step 4. In the narrow front-rear part of the rear end of the vehicle body, the rear step 4 where the foot is stepped on is kept wide and the position of the upper guard handle 7 is maintained. It is possible to facilitate the auxiliary work by being positioned closer to the front side.

  Then, a fertilizer hopper 9 is provided at the upper portion, and a fertilizer application device 11 having a feeding device 10 for feeding fertilizer from the fertilizer hopper 9 is disposed at the lower portion so as to follow the rear side of the rear step 4. Therefore, the fertilizer application device 11 can widen the front-rear width of the upper portion of the fertilizer hopper 9 to increase the capacity of fertilizer accommodation. Further, when a working machine such as a seedling planting device is mounted on the rear side of the vehicle body so as to be able to move up and down, the fertilizer application device 11 is less projected to the rear so as not to obstruct the working machine. Therefore, the front and rear length of the aircraft can be shortened, and operation and workability can be facilitated.

  The support stay 8 is provided with a work support base 12. Since the work support base 12 is provided on the support stay 8, the work support base is effectively used by utilizing a narrow space portion. 12 to place and support a fertilizer bag for replenishment between the top and the guard handle 7 part to facilitate the fertilizer replenishment work to the fertilizer hopper 9, or to support the feet of the auxiliary worker It is possible to facilitate the auxiliary work.

  The left and right sides of the rear floor frame 5 that supports the rear step 4 and the vehicle body frame 13 at the lower center of the vehicle body are connected by a brace 14 to support the rear step 4 portion. Since the left and right sides of the rear floor frame 5 are supported by the body frame 13 at the center lower portion through the configuration of the upper support stay 8 and the guard handle 7 and the lower bracing 4, the operator can It is possible to stabilize the working posture in the case where auxiliary work is performed by stepping on step 4 or holding the guard handle 7 on the support stay 8.

  Here, the floor frame 23 has a sub-floor frame portion 37 attached to the outside of the side floor frame portion 36 extending from the front steering post 24 portion to the left and right side portions of the rear seat case 2 portion. The side floor 3 is attached to the upper part of the floor frame 23. The side floor 3 includes a side step portion 38 located on the side floor frame portion 36 and a sub step portion 39 located on the sub floor frame portion 37.

  The rear end portions of the side floor frame portion 36 and the sub-floor frame portion 37 are connected to the rear side portion of the seat case 2 by the rear floor frame 5 in the horizontal direction, and the sub-floor frame portion on the rear floor frame 5 is connected. The rear step 4 is attached to the upper side of 37. Further, the rear step 40 can be attached even if it extends to the rear side of the seat 1 with the full width of the rear floor frame 5.

  Such a floor frame 23 is based on the specification of the number of seedlings for the width region of the side floor frame part 36 (for example, 4-6 strips) according to the form of the number of seedlings of the seedling planting device 27, In the specification of a larger number of seedlings (6 to 8 plants), a sub-step part 39 is added outside the side step part 38 by adding a sub-floor frame part 37 outside the side floor frame part 36. Thus, the main components such as the vehicle body frame 13 can be shared.

  In the form of adding the sub-floor frame portion 37 in this manner, since the width in the lateral direction of the rear floor frame 5 is widened in particular, the bracing between the both end portions of the rear floor frame 5 and the body frame 13 portion in the center of the vehicle body is performed. 14, the support rigidity of the rear step 4 at the rear end of the side floor 3 can be increased.

  Further, support stays 8 are attached to the left and right sides of the rear floor frame 5, and a lateral guard handle 7 is connected between the upper ends of the left and right support stays 8. As a configuration, the rigidity of the rear step 4 portion can be increased while being a lightweight configuration.

  The support stay 8 is made of a pipe material, and is fixed to a plurality of locations on the rear floor frame 5 at the rear side portions of the rear steps 4 to 40. The support stay 8 is bent to the front side at the upper part of the rear step 4 and bent further upward, and is formed into a substantially crank-like bent part 6. An L-shaped connecting pipe 41 is integrally attached to the upper end of the support stay 8. A work support base 12 is attached to the connection pipe 41, and a side arm 42 along the outer surface of the work support base 12 is provided at a side end portion, and the left and right end portions of the guard handle 7 are connected to the upper end portion. A portion 43 is inserted, and a set pin 44 is inserted between these insertion portions to connect the guard handle 7.

  An operator who moves by stepping on the side floor 3 can put one foot on the rear step 4 or 40 or the work support base 12 and can hold the guard handle 7 during the work. . Furthermore, a fertilizer bag supplied to the fertilizer hopper 9 or a seedling box taken out from the auxiliary seedling shelf 35 can be placed to easily perform fertilizer supply, seedling supply to the seedling tank 33, etc. in an easy posture.

  The fertilizer applying device 11 is formed by widely forming the feeding device 10 and the fertilizer hopper 9 in the lateral direction, and in order to apply fertilizer along each seedling shoot, the feeding devices 10 in the form of feeding rolls are arranged in the horizontal direction. The fertilizer hopper 9 that can be integrated with each other on one horizontal axis, and the fertilizer hopper 9 that can be seen on the upper part of each feeding device 10 is widened to the left and right so as to increase the capacity for containing fertilizer. Moreover, it has the structure which has the wind pipe | tube 46 which guides the pressurized wind from the air blower 45 of the one side end in the lower part, and it is made to blow to the fertilization hose 47 provided over the soil surface from each feeding apparatus 10. FIG. Such a fertilizer application device 11 is attached to the upper end of the rear frame 22.

  This fertilizer application device 11 is mounted close to the front support stay 8. At this time, since the upper part of the support stay 8 escapes to the front side by the bent portion 6, the rearward protrusion or overhang can be reduced, and even when the seedling planting device 27 is lifted by the lift link 26, It can be set as the form which the front upper-end part of the tank 33 cannot contact easily. In addition, the distance between the fertilizer hopper 9 and the seedling tank 33 and the rear step 4 can be shortened, so that fertilizer supply and seedling supply can be facilitated.

Reference numeral 48 denotes a clutch lever which is arranged for every two of the feeding devices 10 and can be operated up and down from the lower side of the front guard handle 7 to turn on and off the transmission of the feeding device 10. When stopping some seedlings as in the case of dredging, the operation of the clutch lever 48 can stop the feeding device 10 at a position where fertilization is unnecessary .

Claims (3)

Side floors (3) including left and right inner side step portions (38) and left and right outer side sub step portions (39) are arranged on the left and right sides of the seat case (2) supporting the seat (1), and the side step portions (38) In a riding work machine in which a first rear step (40) is provided at the upper rear side and a second rear step (4) is provided at the upper rear side of the substep portion (39), Between the left and right sides of the left and right rear floor frame (5) supporting the step (40) and the second rear step (4) and the body frame (13) at the center lower part of the vehicle body, there is a bracing (14). The support stays (8) are provided on both the left and right sides of the rear floor frame (5), and the support stay (8) is provided with a work support base (12) on which an operator can put his / her feet. Riding work machine. A guard handle (7) extending in the left-right direction above the first rear step (40) and the second rear step (4) is supported by the left and right support stays (8), and the support stay (8) The rider according to claim 1, characterized in that a crank-shaped bent portion (6) is formed which passes through the rear side of the rear step (4) and bends forward on the upper side of the second rear step (4). Work machine. A side arm (42) is provided on the outside of the work support base (12) , a fertilizer hopper (9) is provided at the upper part, and a feeding device (10) for feeding fertilizer from the fertilizer hopper (9) is provided at the lower part. The riding work machine according to claim 1 or 2 , wherein the fertilizer application device (11) is arranged along the rear side of the rear step (4) .

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