JP2020032735A - Work vehicle - Google Patents

Abstract

To provide a work vehicle which can dispose a power source for a cabin in a steering part without influencing steering operation and the like by an operator.SOLUTION: The work vehicle comprises: a traveling machine body; a working machine which is liftably and lowerably connected via a lift link in the rearward direction of the traveling machine body; a power supply unit capable of using as the working machine; a seat on which an operator seats; a rear cover which is extended in the right/left direction by being disposed on the rearward side of the seat; and an operation lever which is oscillatorily operated in the front/rear direction by being disposed on the lateral side of the seat. The power supply unit is in the neighborhood of the rear cover, is disposed on the upward side of a lever guide which guides the operation lever, and is configured so as to make it possible to use as a power source for a cabin.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a work vehicle having a power supply unit in a control unit.

A traveling machine, a working machine connected to the rear of the traveling machine via a lifting link so as to be able to move up and down,
A power supply unit for the working machine, a seat on which an operator sits, a rear cover disposed on the rear side of the seat and extending in the left-right direction, and a rear cover disposed on the side of the seat and swinging back and forth. A work vehicle described in Patent Literature 1 including an operation lever operated and provided with the power supply unit in front of a control unit is conventionally known.

  According to the work vehicle of Patent Literature 1, the in-vehicle power supply is provided in the steering column of the steering unit, so that the portable terminal can be held and charged near the steering handle.

  However, since the power supply is provided on the steering column side and the accommodating portion on which the portable terminal is placed is provided, the space for the operator to perform the steering operation may be compressed, which may affect the steering operation and the like. was there.

JP 2014-15058 A

  An object of the present invention is to provide a work vehicle in which an in-vehicle power supply can be arranged in a steering section without affecting a steering operation or the like by an operator.

  In order to solve the above-mentioned problems, the present invention firstly provides a traveling machine, a working machine connected to the rear of the traveling machine via a lifting link so as to be able to move up and down, and a power supply unit usable for the working machine A seat on which an operator sits, a rear cover disposed on the rear side of the seat and extending in the left-right direction, and an operation lever disposed on the side of the seat and swingably operated in the front-rear direction. The power supply unit is disposed near the rear cover and above a lever guide that guides the operation lever, and is configured to be usable as an in-vehicle power supply.

  Second, the power supply unit is disposed below the upper end of the rear cover when viewed from the front.

  Third, the power supply unit is configured to be switchable between a power supply for a working machine and a power supply for a vehicle.

  Since the power supply unit is arranged using a space that is originally vacant in the vicinity of the rear cover on the rear side of the seat, the power supply unit can be made compact as a whole. Further, by disposing the power supply unit above the lever guide, when the operator performs a steering operation, his hand or elbow does not interfere with the power supply unit, so that the operability can be maintained well.

  In addition, according to the power supply unit disposed below the upper end of the rear cover when viewed from the front, it is possible to prevent the power supply unit from interfering with opening and closing of a rear glass provided above the rear cover.

  Further, according to the power supply unit configured to be switchable between a power supply for a working machine and a power supply for a vehicle, a conventional harness connected to the power supply unit can be used as it is, thereby reducing costs. It can be kept low.

It is a side view of the agricultural tractor to which the work vehicle of the present invention is applied. It is a side view which shows a seat periphery. It is a perspective view which shows a seat periphery. It is the principal part perspective view of the control part which showed the state which omitted the seat. 3A to 3D are a perspective view, a plan view, a front view, and a side view showing a configuration of a power supply unit.

Hereinafter, embodiments of the present invention will be described based on the illustrated example.
1 is a side view of an agricultural tractor to which the work vehicle of the present invention is applied, FIGS. 2 and 3 are a side view and a perspective view showing a periphery of a seat, and FIG. 4 is a state in which the seat is omitted. It is a principal part perspective view of the operation part shown. In this tractor, a body frame 3 supported by a pair of left and right front wheels 1, 1 and rear wheels 2, 2 and a hood 4 that covers an upper surface side of an engine (not shown) installed on the front side of the body frame 3 And a cabin 6 arranged behind the bonnet 4 to form a traveling machine body 7, and a working machine (not shown) such as a rotary tilling device is moved up and down via the elevating link 8 behind the traveling machine body 7. It is connected as possible.

  The cabin 6 is provided with a control section 9 on which an operator steps in to perform control and the like. The control section 9 includes a seat 11 on which the operator sits, and a steering operation tool disposed in front of the seat 11. , A floor step 13 which is a floor provided between the seat 11 and the steering handle 12, and various lever operating tools disposed on the left and right sides of the seat 11. I have.

  On the left and right sides of the seat 11, there is provided a cover (lever guide) 14 which is formed in an arcuate shape from the floor step 13 side toward the rear upper side along the rear wheel 2. A plurality of the lever operating tools configured to be swingable in the front-rear direction are arranged on the cover body 14, and the cover body 14 also functions as a guide member. In the illustrated example, on the left side of the seat 11, a main shift lever 16 and an auxiliary shift lever 17 arranged on the left and right inner sides of the main shift lever 16 are provided, and on the right side of the seat 11, A work implement lever 18 for operating the lifting and lowering operation of the work implement is provided.

  The cabin 6 includes a pair of left and right front pillars 19 disposed in front of the steering handle 12, a pair of right and left rear pillars 21 disposed behind the seat 11, and a top plate 20. A windshield 22 is provided on the upper side of the hood 4 between the left and right front supports 19, 19, and a rear cover 24 for covering the seat rear side is provided on a lower side between the left and right rear supports 21, 21. A rear glass 23 is provided above the rear cover.

  Further, the cabin 6 is provided with a retrofittable power supply unit 26 which can take out a power supply inside the vehicle or on the side of the working machine, on the upper end side of the rear cover 24. A specific installation configuration of the power supply unit 26 will be described later.

  Further, the cabin 6 is provided with a door portion for opening and closing a space for an operator to get on and off from the side of the cabin 6 into the control section 9 between the front support 19 and the rear support 21 arranged in front and rear. Is provided.

  The door portion includes a rotation support portion 27 attached to the rear support column 21 side, a front-rear direction door frame 28 supported via the rotation support portion 27 so as to be horizontally rotatable, and a door frame 28. A handle portion 29 provided on the swinging end side, and a holder 31 capable of holding a drink or the like is provided on the door frame 28.

  The holder 31 is a U-shaped plate-like member whose left and right inner sides are opened, is provided near the rotation support portion 27 of the door frame 28, and the lower surface side is fixedly attached to the door frame 28 side. . Further, a support hole 31a through which a drink such as a plastic bottle for drinks can be inserted is formed on the upper surface side of the holder 31. By placing it on the side, it can be stably held even if there is some shaking (see FIG. 4).

  According to this configuration, since the holder 31 is provided on the shaft side on the door frame 28, the drink is on the left and right sides of the seat 11 and on the upper side of each operation lever on the side of the seat 11. , The drink contained in the holder 31 does not hinder the operator's steering operation or opening / closing operation of the door.

  The holder 31 may be provided with a rectangular terminal support hole (not shown) through which a portable terminal such as a smartphone can be inserted at the front side on the upper surface side where the support hole 31a is formed. The terminal support hole may be formed to have an opening somewhat larger than the size of a standard-sized portable terminal, and a cushion material made of an elastic member or the like may be provided along the inner edge in the longitudinal direction.

  According to this configuration, even when a drink such as a plastic bottle is held in the holder 31, it is easy to check the screen of the portable terminal or the like held in the holder 31. In addition, by opening the terminal support hole slightly larger and providing a cushion material on the edge side of the terminal support hole, it is possible to stably hold various types and sizes of mobile terminals without being damaged. it can.

  Further, the holder 31 may have a configuration in which an insertion hole or a notch (both not shown) through which a cable such as a charging cable connected to a portable terminal or the like is inserted is formed on the lower surface side. According to this configuration, the mobile terminal can be stably held while the charging cable is pierced at the lower end of the mobile terminal held up by the holder 31.

  Next, the arrangement of the power supply unit will be described with reference to FIGS. 5A to 5D are a perspective view, a plan view, a front view, and a side view showing the configuration of the power supply unit.

  The power supply unit 26 includes a power source, a holder 36 that covers and holds the power source, a bracket 37 for attaching the holder 36 (power source) to the upper end side of the rear cover 24, The power supply unit 26 includes a housing case 38 provided, and a harness 39 extending from a power supply side and having a connector 41 provided at a distal end side. The power supply unit 26 includes the seat 11 and the rear cover 24 in the control unit 9. It is provided in a space formed between them.

  The power supply is mainly installed in the control unit 9 as a power supply for the working machine, and functions as a power supply for supplying power to the working machine via the harness 39 and the connector 41. A starter switch (not shown) on the control unit 9 side is connected to a battery (not shown) through a fuse.

  Further, the power supply can be used as a power supply for a working machine and also as a power supply for a vehicle. As a result, a power source for the vehicle can be provided on the rear side of the cabin, so that, for example, charging work of a portable terminal or the like held on the holder 31 side on the rear side of the seat 11 is smoother and easier. Will be able to do it.

  The holding body 36 covers the left and right side surfaces and the front side of the power supply, and has a cigar socket 42 on the upper surface side. The holding body 36 is configured such that the rear surface side is attached to the bracket 37 to be described later so as to cover the entire side peripheral surface of the power supply, and that the harness 39 is taken out from the lower surface side of the holding body 36. ing.

  The bracket 37 is a plate-shaped member extending in the left-right direction and having an L-shape (angle) in cross-section, and is formed so that an inner surface thereof is in contact with an upper surface and a front surface of the rear cover 24. . The holding body 36 is attached and fixed to the front side of the bracket 37, and the holding body 36 is moved to one of the left and right sides (right side in the example shown) so as not to overlap with the seat 11 in a front view. It is provided in the position where it was.

  When the bracket 37 is fixed to the rear cover 24 side, the holding body 36 (power supply) attached to the bracket 37 does not project upward from the upper end side of the rear cover 24 (bracket 37). In addition, the holding body 36 is configured to be disposed above the cover body 14 and the various operation levers 16, 17, and 18 (see FIGS. 3 to 5).

  Further, after the bracket 37 is positioned so as to be mounted on the rear frame 24 provided on the rear side of the seat 11, the bracket 37 is provided with rivets and the like in addition to fixing screws and screws. It is configured so that it can be attached and fixed to the control section 9 (rear cover 24) side by using this.

  The housing case 38 is provided on the front side of the holder 36, and has a thin box shape in the front-rear direction opened upward so as to be able to house a portable terminal or the like, a remote controller for operating a work machine, or the like. It is molded into. The housing case 38 is configured such that its upper end does not protrude above the upper end of the holding body 36 (the bracket 37 or the rear cover 24), and its lower end has the lower end in a front view. It is configured to have a size that is arranged above the upper end of the cover body 14.

  As a result, the housing case 38 is arranged on the rear side and the left and right sides of the seat 11 and is arranged above the cover body 14, so that the housing case can be operated by an operator using an operation lever or the like. It does not get in the way.

  The harness 39 is taken out from the lower surface side of the power supply housed in the holding body 36 downward, and in the middle thereof, an annular band 43 for guiding the harness 39 on the side of the seat 11 is provided. Is provided. Thereby, the connector 41 on the distal end side of the harness 39 is configured to extend to the rear side of the seat 11 and to the seat installation surface 10 on which the seat 11 is installed. (See FIG. 4 etc.).

  According to the power supply unit 26 having the above-described configuration, a power supply that can be used for a working machine can be attached to and supported by the rear cover 24 via the holder 36 and the bracket 37. It can be retrofitted to various types of work vehicles.

  In addition, since the power supply unit 26 is disposed in a dead space formed between the seat 11 and the rear cover 24, formed behind the seat 11, the power supply unit can be installed with good space efficiency. Further, since the power supply unit 26 is disposed on the rear side of the seat 11 and on the left and right sides of the seat 11 when viewed from the front, the power supply unit 26 moves the seat 11 back and forth according to the size of the worker. However, the power supply unit 26 does not interfere (see FIG. 3).

  Further, in the example shown in the drawing, the power supply unit 26 is disposed above each operation lever, so that the power supply unit 26 is unlikely to be in the way when the operator performs the steering operation. In the illustrated example, since the power supply unit 26 is disposed on the right, left, or right side where the work equipment lever 18 having a relatively narrow movable range among the operation levers is disposed, the power supply unit 26 is more steered by the operator. It is configured so as not to cause trouble in operation.

  The power supply unit 26 is configured such that the holding body 36 and the housing case 39 are disposed below the rear cover 24 so that the holding body 36 and the housing case 38 It does not obstruct the field of view when viewing the rear through the. Furthermore, even when the rear glass 23 is configured to be able to open and close in the front-rear direction, the power supply 26 does not interfere with the rear glass 23, so that the rear glass 23 can be smoothly opened and closed.

  Incidentally, as shown in FIGS. 2 and 4, a control unit for controlling the operation of the working machine and the like is supported on the rear (rear) side of the rear cover 24, and a lower side of the rear cover 24 is A guide hole 53 through which a harness 51 for a working machine extending from the working machine is inserted is formed.

  According to this configuration, the control unit and the power supply unit 26 that can be used as an external power supply are arranged on the rear side and the front side of the rear cover 24, respectively, so that the harness and the like are more simply arranged. can do.

  The work harness 51 guided into the control section 9 from the guide hole 53 and the harness 39 connected from the power supply section 26 side are configured so that a common harness is used. Thereby, each of the harnesses 39 and 51 is inexpensive and easy to use.

7 traveling body 8 lifting link 11 seat 14 cover body (lever guide)
16 Main transmission lever (operation lever)
17 Sub transmission lever (operation lever)
18 Work equipment lever (operation lever)
24 Rear cover 26 Power supply section

Claims (3)

Traveling aircraft,
A working machine that is connected to the rear of the traveling body via a lifting link so as to be able to move up and down,
A power supply unit usable for the work machine;
A seat on which an operator sits,
A rear cover arranged on the rear side of the seat and extending in the left-right direction;
An operation lever that is arranged on the side of the seat and is swingably operated in the front-rear direction,
The work vehicle, wherein the power supply unit is disposed near the rear cover and above a lever guide that guides the operation lever, and is configured to be usable as an in-car power supply. The work vehicle according to claim 1, wherein the power supply unit is disposed below an upper end of the rear cover in a front view. The work vehicle according to claim 1, wherein the power supply unit is configured to be switchable between a power supply for a working machine and a power supply for a vehicle.

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