Work vehicles

Abstract

To provide a work vehicle configured so as to display information efficiently so that the information can be visually recognized easily.SOLUTION: The work vehicle is provided with an open / close door 26 that opens and closes when a driver gets in and out of a cabin 16, where the open / close door 26 is configured so that a nearly whole surface thereof has permeability. The work vehicle is further provided with an electric door closer device 31 that transfers the open / close door 26 to a fully-closed state, when sensing that the open / close door 26 is in a half-shut state. The open / close door 26 is provided with a door frame 36 which a driver grips. The door frame 36 is arranged from the vicinity of a fender 25 beside a driving seat 7 to the vicinity of the door closer device 31, and electric wire 33 through which electric power is supplied to the door closer device 31 is arranged on the door frame 36.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a work vehicle such as an agricultural tractor. [Background technology]

[0002] BACKGROUND ART There is known a vehicle door closer device that completely locks a door by driving a motor when it detects that the door is not completely closed, ie, is left half-open (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-235706 Summary of the Invention [Problem to be solved by the invention]

[0004] In the case of ordinary vehicles, the wiring that supplies electricity to the motor can be routed inside the door, but in work vehicles such as tractors that are fitted with work equipment and used for work in fields, the entire door is often made of transparent glass so that the surroundings can be clearly seen while working. Therefore, running the wiring inside the door makes it look unsightly, and this has been difficult to resolve.

[0005] An object of the present invention is to provide a work vehicle that can be equipped with a door closer device on a glass door. [Means for solving the problem]

[0006] In order to solve the above problems and achieve our goals, The first invention is provided with an opening and closing door (26) that opens and closes when a driver enters and leaves a cabin (16), the opening and closing door (26) being configured to be substantially entirely transparent, and an electric door closer device (31) that transitions the opening and closing door (26) to a fully closed state when it detects that the door is half-open, The door (26) is provided with a door frame (36) to be gripped by the driver, and the door frame (36) is provided from the vicinity of the fender (25) on the side of the driver's seat (7) to a mounting hole spaced above the door closer device (31); The cabin (16) is provided with a front strut (18), The door closer device (31) is not adjacent to the door frame (36) but is adjacent to the front post (18), The electric wire (42) for the charger (41) is routed along the front support (18) up to the vicinity of the door closer device (31) when the opening and closing door (26) is closed; This work vehicle is characterized by a configuration in which a capacitor (40) is provided in the door closer device (31), and a charger (41) is provided on the front support (18) to supply power to the capacitor (40) from a power source provided in the traveling vehicle body when the opening and closing door (26) is closed. First invention related to the present invention The vehicle is provided with an opening / closing door 26 that opens and closes when the driver enters or exits the cabin 16, the opening / closing door 26 being made almost entirely transparent, and an electric door closer device 31 that transitions the opening / closing door 26 to a fully closed state when it detects that the door is half-open, and the opening / closing door 26 is provided with a door frame 36 that the driver holds, and the door frame 36 is installed from near the fender 25 on the side of the cockpit 7 to near the door closer device 31, and an electric wire 33 that supplies electricity to the door closer device 31 is arranged in the door frame 36.

[0007] Second invention related to the present invention teeth, First invention related to the present invention In the door frame 36, an electric wire 33 is routed from the fender 25 to the door frame 36 via the hinge 27 of the door 26.

[0008] The third invention related to the present invention teeth, The first or second invention related to the present invention In this configuration, an electric wire 33 is routed from a power source provided at the front of the traveling vehicle body into the cabin 16, and is routed along the surface of the floor 17 inside the cabin 16 and routed to the fender 25 on the side of the driver's seat 7.

[0009] The fourth invention related to the present invention The vehicle is provided with an opening / closing door 26 that opens and closes when the driver enters and exits the cabin 16, and the opening / closing door 26 is configured to be transparent on almost the entire surface, and is provided with an electric door closer device 31 that transitions the opening / closing door 26 to a fully closed state when it detects that the door is half-open, and is provided with a capacitor 40, and is configured so that when the opening / closing door 26 is closed, power is supplied to the capacitor 40 from a power source provided in the traveling vehicle body.

[0010] Fifth Invention Related to the Present Invention teeth, The fourth invention related to the present invention In the vehicle, a cabin 16 is provided with a front support 18, and an electric wire 42 is routed along the front support 18 up to the vicinity of a door closer device 31 when an opening / closing door 26 is closed. [Effects of the Invention]

[0011] According to the present invention, the capacitor 40 is provided inside the door closer device 31, and power is supplied to the capacitor 40 from a power source provided in the traveling vehicle body when the opening / closing door 26 is closed, so the electric wire 42 that supplies electricity to the door closer device 31 provided in the opening / closing door 26, which is almost entirely transparent, can be routed without damaging the appearance. By supplying power to the capacitor 40 of the door closer device 31 when the opening / closing door 26 is closed, the door closer device 31 can be operated even when the electric wire 33 is not connected to it. First invention related to the present inventionAccording to the above, the electric wire 33 that supplies electricity to the door closer device 31 is routed in the door frame 36, so that the electric wire 33 that supplies electricity to the door closer device 31 provided in the opening and closing door 26 that is transparent over almost the entire surface can be routed without impairing the appearance.

[0012] Second invention related to the present invention According to First invention related to the present invention In addition to the above effect, the electric wires are routed from the fender 25 to the door frame 36 via the hinge 27, so that the electric wires 33 can be routed without impairing the appearance.

[0013] The third invention related to the present invention According to The first or second invention related to the present invention In addition to the above effect, the electric wires 33 routed from the power source provided at the front of the vehicle body to the inside of the cabin 16 are configured to run along the surface of the floor 17 inside the cabin 16 and routed to the fender 25 on the side of the driver's seat 7, so that the electric wires can be routed from the power source provided at the front of the vehicle body to the door closer device 31 without damaging the appearance.

[0014] The fourth invention related to the present invention According to the document, a capacitor 40 is provided inside the door closer device 31, and power is supplied to the capacitor 40 from a power source provided on the traveling vehicle body when the opening / closing door 26 is closed, so that the electric wire 42 that supplies electricity to the door closer device 31 provided on the opening / closing door 26, which is almost entirely transparent, can be routed without damaging the appearance. By supplying power to the capacitor 40 of the door closer device 31 when the opening / closing door 26 is closed, the door closer device 31 can be operated even when the electric wire 33 is not connected to it.

[0015] Fifth Invention Related to the Present Invention According to The fourth invention related to the present invention In addition to the above effect, the cabin 16 is provided with a front support 18, and the electric wire 42 is routed along the front support 18 up to the vicinity of the door closer device 31 when the opening / closing door 26 is closed, so that the electric wire 42 that supplies electricity to the door closer device 31 provided on the opening / closing door 26, which is transparent over almost the entire surface, can be routed without damaging the appearance. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a side view of an agricultural tractor according to an embodiment of the present invention. FIG. [Figure 2] FIG. 2 is a schematic side view of the interior of the cabin of the tractor. [Figure 3] FIG. [Figure 4] 1A is a perspective view of the outer door knob and its surrounding structure of the tractor, and FIG. 1B is a perspective view of the inner door knob and its surrounding structure. [Figure 5] FIG. 2 is a perspective view of a dashboard and a part of a floor in the cabin of the tractor. [Figure 6] FIG. 2A is a perspective view showing the door frame support structure of the tractor, and FIG. 2B is a partially exploded perspective view thereof. [Figure 7] FIG. 10 is a perspective view of the interior of a cabin of another example of an agricultural tractor according to an embodiment of the present invention. [Figure 8] FIG. 10 is a schematic side view of the interior of the cabin of the same another example. DETAILED DESCRIPTION OF THE INVENTION

[0017] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0018] FIG. 1 shows a tractor. A diesel engine E is mounted inside a hood 2 at the front of a vehicle body 1. The rotational power of the engine E is transmitted to a transmission in a transmission case 3, which then reduces the speed and transmits the rotational power to front wheels 4 and rear wheels 5. A steering wheel 6 for steering the front wheels 4 is mounted behind the engine E, and a driver's seat 7 is located behind the steering wheel 6. A hydraulic cylinder case 8 is mounted at the upper rear of the transmission case 3, and lift arms 9, which form part of a hydraulic lifting mechanism, are rotatably attached to both the left and right sides of the cylinder case 8. The lift arms 9 move up and down by the extension and contraction of lifting hydraulic cylinders 10. A three-point link mechanism consisting of a top link 11 and left and right lower links 12 is mounted at the rear of the vehicle body. A rotary work machine R is attached to this link mechanism, and the lower links 12 are connected to the lift arms 9 via lift rods 13, allowing the work machine R to be raised and lowered.

[0019] The steering wheel 6, driver's seat 7, etc. are covered by a cabin 16. The cabin 16 is fixed to the vehicle body via an elastic member such as vibration-isolating rubber, making it difficult for vibrations of the vehicle body to be transmitted to the cabin 16.

[0020] The cabin 16 is an integrated framework consisting of a floor 17, front pillars 18 erected at the left and right front of the floor 17, rear pillars 19 erected at the left and right rear of the driver's seat 7, intermediate pillars 20 erected at the midpoint between the front and rear, and an upper frame 21 connecting the upper ends of these pillars, and is covered with a roof 22. Strength is ensured by rigidifying components such as a box-shaped seat frame 23 that supports the driver's seat 7, a rear plate 24 that surrounds the rear of the driver's seat 7, and left and right fenders 25 that cover the tops of the rear wheels 5. Furthermore, glass windows are provided on the front and rear sides, and passengers can enter and exit the cabin through left and right opening doors 26.

[0021] The opening and closing door 26 is a transparent glass door, with upper and lower edges, and is configured by fitting a sealant 26S around tempered glass 26G that has a shape such that its front side follows the front support pillar 18, its lower rear part follows the fender 25, and its upper rear part follows the intermediate support pillar 20. Hinges 27 are configured at two locations, one above and one below, between the rear of the opening and closing door 26 and the intermediate support pillar 20. The hinges 27, which have hinge portions 27a on the upper and lower axes, are fixed from the outside of the intermediate support pillar 20 and the opening and closing door 26, and the opening and closing door 26 can rotate outward, opening the left and right sides of the cabin 16.

[0022] An outer door knob 28 is provided on the outside of the lower front portion of the opening / closing door 26. An inner door knob 29 is provided on the inside of the opposing opening / closing door 26. A locking mechanism 30 is provided on the inside of the opening / closing door 26 that supports the inner door knob 29. Therefore, when the outer door knob 28 is pulled from the outside of the opening / closing door 26, the door is unlocked, and the opening / closing door 26 opens forward around the hinge 27, allowing the side of the cabin 16 to be opened. An operator boards the cockpit 7, closes the opening / closing door 26, and the locking mechanism 30 engages to lock the opening / closing door 26 in a closed state. An operator on the inside can operate the inner door knob 29 to unlock the locking mechanism 30 and open the opening / closing door 26.

[0023] The locking mechanism 30 of the opening and closing door 26 is provided with an electric door closer 31 that detects an incompletely locked state of the door, i.e., a half-open state, and operates to completely lock the door, i.e., fully closed. The door closer 31 is provided with a detection means (not shown) that detects the incompletely locked state, and an electric motor (not shown) that operates to completely lock the door when an incompletely locked state is detected.

[0024] Next, the electrical wiring to the door closer device 31, i.e., the wiring for supplying power to the electric motor 31b and the wiring for transmitting and receiving various signals to the detection means 31a, will be described. Although different types of wiring, such as wire, cable, and harness, are used depending on the device and purpose, they will be collectively referred to as electric wire 33 below. The electric wire 33 is routed along one side of a dashboard 35 that supports the steering wheel 6 and has an operation panel (not shown) on its upper surface, and is routed along the upper surface of the fender 25 via the floor 17 (FIG. 5). After being routed near the inner surface of the intermediate support pillar 20 on the upper surface of the fender 25, the electric wire passes through a door frame 36 provided on the inside of the opening / closing door 26 and is routed to the door closer device 31.

[0025] The door frame 36 is fixed to the inside of the opening / closing door 16 from front to rear, and is provided at an appropriate distance from the inner surface of the tempered glass 16G so that an operator inside the cabin 16 can grasp the door frame 36 to open or close the opening / closing door 26. The rear end of the door frame 36 is appropriately connected to a bracket member 36a that corresponds to and is fastened together with the lower one of the hinges 27, and the front end of the door frame 36 is appropriately fixed to a mounting hole 36b formed in the tempered glass 16G, located near a case member 37 that houses the lock mechanism 30 and the door closer device 31. Specifically, the rear half of the door frame 36 is in a substantially horizontal position, and the front from the middle of the front and rear of the door frame 36 is bent obliquely toward and close to the case member 37, and then bent upward to reach the mounting hole 36b located above the case member 37 (FIGS. 2 and 3).

[0026] An electric wire 33 is passed through the door frame 36, and this electric wire 33 comes out of the door frame 36 at the point closest to the case member 37 and can be connected to the detection means 31a and electric motor 31b of the door closer device 31 inside the case member 37.

[0027] As described above, the door frame 36 is provided from near the fender 25 on the side of the driver's seat 7 to near the door closer device 31, and the electric wire 33 that supplies electricity to the door closer device 31 is routed in the door frame 36, so the electric wire 33 that supplies electricity to the door closer device 31 provided in the opening and closing door 26 that is transparent over almost the entire surface can be routed without damaging the appearance.

[0028] Here, the structure of the electric wire 33 extending from the fender 25 to the door frame 36 will be described in detail. A slack space is formed on the outer surface of a cup holder 38 formed on the upper surface of the fender 25 (on the left side in the illustration), and the electric wire 33 is arranged in this slack space with an appropriate amount of slack. This is to provide slack in the middle of the electric wire 33 so that the base end of the door frame 36, in particular, can move toward or away from the door 26 as it opens and closes. The electric wire leading to the hinge 27 of the door 26 is covered by an electric wire protection cover 39 and enters the door frame 36. The electric wire cover 39 is fastened together with the hinge 27 in the same manner as the bracket member 36a (FIG. 6).

[0029] As described above, the electric wires 33 are routed from the fender 25 to the door frame 36 via the hinge 27, so that the electric wires 33 can be routed without impairing the appearance, and the influence of the opening and closing of the door 26 on the electric wires 33 can be minimized.

[0030] As described above, the electric wires 33 routed from the power source provided at the front of the vehicle body into the cabin 16 are configured to run along the surface of the floor 17 inside the cabin 16 and routed to the fender 25 on the side of the driver's seat 7, so that the electric wires can be routed from the power source provided at the front of the vehicle body to the door closer device 31 without damaging the appearance.

[0031] Next, an improved configuration of the door closer device 31 will be described with reference to Figures 7 and 8. A storage battery 40 that operates the electric motor of the door closer device 31 is installed inside, and a charger 41 that charges this storage battery 40 is located near the case member 37. An electric wire 42 for the charger is arranged to run from the cabin roof 22 along the front support pillar 18. Note that an electric wire from a power source is required inside the cabin roof 22 as appropriate. Furthermore, the timing for charging the battery 40 by this charger 41 is when the engine E is running and the opening / closing door 26 is closed.

[0032] In this way, the capacitor 40 is provided inside the door closer device 31, and power is supplied to the capacitor 40 from a power source provided in the traveling vehicle body when the opening / closing door 26 is closed, so the electric wire 42 that supplies electricity to the door closer device 31 provided in the opening / closing door 26, which is almost entirely transparent, can be routed without damaging the appearance. By supplying power to the capacitor 40 of the door closer device 31 when the opening / closing door 26 is closed, the door closer device 31 can be operated even when the electric wire 33 is not connected to it when the door is closed.

[0033] Furthermore, the cabin 16 is provided with a front support 18, and the electric wire 42 is routed along the front support 18 up to the vicinity of the door closer device 31 when the opening / closing door 26 is closed, so that the electric wire 42 that supplies electricity to the door closer device 31 provided on the opening / closing door 26, which is transparent over almost the entire surface, can be routed without damaging the appearance. [Explanation of symbols]

[0034] 7 cockpit 16 cabins 17 floors 25 fender 26 Opening and Closing Doors 27 hinges 31 Door closer device 33 electric wire 40 Capacitor 42 electric wire

Claims

[Claim 1] The vehicle is provided with an opening / closing door (26) that opens and closes when a driver enters or leaves the cabin (16), the opening / closing door (26) being configured to be transparent over almost the entire surface, and an electric door closer device (31) that transitions the opening / closing door (26) to a fully closed state when it detects that the door is half-open; A door frame (36) to be gripped by a driver is provided on the opening / closing door (26), and the door frame (36) is provided from the vicinity of the fender (25) on the side of the driver's seat (7) to a mounting hole spaced above the door closer device (31); The cabin (16) is provided with a front strut (18); The door closer device (31) is not adjacent to the door frame (36) but is adjacent to the front post (18); An electric wire (42) for the charger (41) is routed along the front support (18) up to the vicinity of the door closer device (31) when the opening and closing door (26) is closed; This work vehicle is characterized in that a door closer device (31) is provided with a capacitor (40), and a charger (41) is provided on a front support (18) for supplying power to the capacitor (40) from a power source provided on the traveling vehicle body when the opening / closing door (26) is closed.

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