Electric work vehicle

Abstract

An electric work vehicle is provided with: a battery; a motor driven by power supplied from the battery; a travel device driven by the motor; a power supply unit (20) that can be connected to a charger and that is electrically connected to the battery; and a cover member (12) that covers the battery and the power supply unit (20), an opening (13) being formed in a portion of the cover member (12) that faces the power supply unit (20), and the cover member (12) being provided with a lid (14) that can open and close the opening (13).

Description

Technical Field

[0001] The present invention relates to an electric work vehicle including a battery and a motor driven by electric power supplied from the battery. Background Art

[0002] As such an electric work vehicle, for example, an electric work vehicle described in Patent Document 1 is known. This electric work vehicle travels by a traveling device (front wheels and rear wheels in Patent Document 1) driven by a motor (an "electric motor" in Patent Document 1). The battery of this electric work vehicle is covered with a cover member (an "engine hood" in Patent Document 1).

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2013 - 248918 Summary of the Invention

[0006] Technical Problem to be Solved by the Invention

[0007] In Patent Document 1, a power supply unit capable of connecting a charger for charging the battery is not described. Here, in the electric work vehicle described in Patent Document 1, it is considered to be configured to include a power supply unit capable of connecting a charger and electrically connected to the battery, and the power supply unit is covered with a cover member.

[0008] According to this configuration, the power supply unit is protected by the cover member. However, in this configuration, when connecting the charger to the power supply unit, it is necessary to open the cover member. Since the cover member covers the battery and the power supply unit, it has a relatively large size. Therefore, the weight of the cover member tends to become relatively large. That is, in this configuration, when connecting the charger to the power supply unit, it is necessary to open the cover member having a relatively large weight. As a result, the labor required for charging the battery tends to increase.

[0009] An object of the present invention is to provide an electric work vehicle capable of reducing the labor required for charging the battery.

[0010] Technical Solution for Solving the Technical Problem

[0011] The present invention is characterized in that an electric work vehicle includes: a battery; a motor driven by electric power supplied from the battery; a traveling device driven by the motor; a power supply unit capable of connecting a charger and electrically connected to the battery; and a cover member covering the battery and the power supply unit, an opening is formed in a portion of the cover member facing the power supply unit, and the electric work vehicle includes a lid portion capable of opening and closing the opening.

[0012] According to this configuration, by opening the lid portion, the opening can be opened. Moreover, an operator can access the power supply unit from the outside of the cover member via the opening. Thus, the charger can be connected to the power supply unit without opening the cover member.

[0013] Therefore, according to this configuration, an electric work vehicle capable of reducing the labor required for charging the battery can be realized.

[0014] Moreover, in the present invention, preferably, a driver's cab on which an operator can ride is provided, the cover member is located in front of the driver's cab, and the opening is formed in the left side portion or the right side portion of the cover member.

[0015] Assume that when the opening is formed in the front side portion of the cover member, it is necessary to arrange the power supply unit in the front part of the space covered by the cover member. However, in many cases, various components such as a radiator are present in the front part of this space. For example, if a radiator or the like is arranged in the front part of this space, in order to avoid interference between the power supply unit and the radiator or the like, there is an easy need to expand the front part of this space. In order to expand the front part of this space, for example, measures such as increasing the cover member are required. As a result, the manufacturing cost is likely to increase.

[0016] According to this configuration, the power supply unit can be arranged in the left part or the right part of the space covered by the cover member. Thus, as described above, there is less likelihood of the need to increase the cover member or the like in order to avoid interference between the power supply unit and the radiator or the like. Therefore, an increase in the manufacturing cost can be easily avoided.

[0017] Moreover, in the present invention, preferably, the edge portion of the lid portion has a gentle inclined portion and a steep inclined portion. The gentle inclined portion is located at the lower end portion of the edge portion and is inclined so as to be located more upward as it gets closer to the steep inclined portion. The upper end portion of the gentle inclined portion is connected to the lower end portion of the steep inclined portion. The steep inclined portion is inclined so as to be located more downward as it gets closer to the gentle inclined portion. The inclination of the gentle inclined portion is gentler than the inclination of the steep inclined portion. The power supply unit is located above the gentle inclined portion in a side view.

[0018] According to this configuration, compared with the case where the power supply unit is located above the steep inclined portion in a side view, it is easier to ensure a larger gap between the outer periphery of the power supply unit and the opening in a side view. As a result, it is easier to connect the charger to the power supply unit.

[0019] Moreover, according to this configuration, the edge portion of the lid portion has a gentle inclined portion and a steep inclined portion, whereby the appearance of the lid portion becomes clear and the designability is easily improved.

[0020] Moreover, in the present invention, preferably, the cover member has a frame portion surrounding the opening, and the opening and the power supply portion are arranged such that when the cover portion is in the open state, the frame portion does not overlap with the power supply portion when viewed in the connection direction of the charger.

[0021] According to this configuration, when viewed in the connection direction of the charger, the frame portion does not overlap with the power supply portion. Therefore, it is easy to connect the charger to the power supply portion.

[0022] Moreover, in the present invention, preferably, the cover portion can change its state between the open state and the closed state by swinging around a swing axis.

[0023] According to this configuration, it is easy to open and close the cover portion. Therefore, the charging operation of the battery becomes easy.

[0024] Moreover, in the present invention, preferably, the swing axis is inclined with respect to the vertical direction toward the open direction of the cover portion.

[0025] According to this configuration, when the cover portion is opened to a certain extent or more, the cover portion becomes a state of swinging in the open direction due to its own weight. Thereby, a configuration that can easily open the cover portion can be achieved.

[0026] Moreover, in the present invention, preferably, the open direction of the cover portion is the front side.

[0027] According to this configuration, when the electric work vehicle travels in a state where the operator accidentally opens the cover portion, if an object (such as a tree, etc.) abuts against the cover portion from the front, the cover portion is pressed by the object and swings in the closing direction. Thereby, the cover portion can assume a posture to avoid the object. Therefore, it is possible to avoid the situation where the contact between the cover portion and the object becomes a resistance and hinders the travel of the electric work vehicle.

[0028] Moreover, in the present invention, preferably, the cover member has a frame portion surrounding the opening, and the electric work vehicle is provided with a push latch that can latch the free end portion of the cover portion to the frame portion, and the free end portion of the cover portion can be engaged with or disengaged from the frame portion through the push latch.

[0029] According to this configuration, the opening and closing operation of the cover portion becomes easy. Therefore, the charging operation of the battery becomes easy.

[0030] Moreover, in the present invention, preferably, a mark is provided at a portion of the surface of the cover portion corresponding to the push latch.

[0031] According to this configuration, when the operator opens the cover portion, it is easy to grasp the position of the push latch. Thereby, the operation of opening the cover portion becomes easy.

[0032] Moreover, in the present invention, preferably, the cover member has a frame portion surrounding the opening, and a chamfered portion is formed in a portion of the frame portion facing the cover portion in the open state.

[0033] According to this configuration, compared with a configuration in which a chamfered portion is not formed, the swing angle of the cover portion from the closed state of the cover portion to the state where the cover portion abuts against the frame portion in the opening direction is likely to be larger. As a result, the opening angle of the cover portion is likely to be larger.

[0034] Moreover, in the present invention, preferably, the cover member has a frame portion surrounding the opening, and the frame portion is configured to abut against the cover portion in the open state.

[0035] According to this configuration, when an operator opens the cover portion, it is easy to prevent the cover portion from abutting against a portion other than the frame portion in the body. Therefore, it is easy to prevent a situation where, for example, the portion is damaged due to the cover portion abutting against a portion other than the frame portion.

[0036] Moreover, in the present invention, preferably, the cover member has a frame portion surrounding the opening, and the frame portion has an extension portion extending toward the side where the power supply portion is located with respect to the opening.

[0037] According to this configuration, when an operator observes the inside of the cover member through the opening, from the operator's view, components other than the power supply portion among the various components covered by the cover member are likely to be hidden by the extension portion. As a result, it is easy to prevent a situation where the operator accidentally touches components other than the power supply portion among the various components covered by the cover member.

[0038] Moreover, in the present invention, preferably, the cover member has a frame portion surrounding the opening, and the frame portion has a wall-like portion extending toward the power supply portion when viewed in the connection direction of the charger.

[0039] According to this configuration, when an operator observes the inside of the cover member through the opening, from the operator's view, components other than the power supply portion among the various components covered by the cover member are likely to be hidden by the wall-like portion. As a result, it is easy to prevent a situation where the operator accidentally touches components other than the power supply portion among the various components covered by the cover member.

[0040] Moreover, in the present invention, preferably, the power supply portion is arranged in an attitude facing obliquely upward.

[0041] According to this configuration, when the power supply portion is provided at a position lower than the height of the operator's shoulder, the angle of the power supply portion is likely to be an angle at which it is easy to connect the charger to the power supply portion. As a result, the battery charging operation becomes easy.

[0042] Moreover, in the present invention, preferably, the inclination of the orientation of the opening with respect to the horizontal direction is smaller than the inclination of the orientation of the power supply unit with respect to the horizontal direction.

[0043] According to this configuration, compared with the case where the orientation of the opening and the orientation of the power supply unit are the same and the case where the inclination of the orientation of the opening with respect to the horizontal direction is larger than the inclination of the orientation of the power supply unit with respect to the horizontal direction, when the charger is connected to the power supply unit, the gap between the lower end of the portion passing through the opening in the charger and the opening is likely to become wider. Thus, when connecting the charger to the power supply unit, it is easy to avoid the situation where the operator makes the lower end of the portion passing through the opening in the charger contact the opening.

[0044] Moreover, in the present invention, preferably, the upper end of the power supply unit is located at a position lower than the upper end of the opening, and the lower end of the power supply unit is located at a position higher than the lower end of the opening.

[0045] According to this configuration, when observed in the connection direction of the charger, the power supply unit is easily accommodated inside the opening. Thus, it is easy to connect the charger to the power supply unit. Description of the Drawings

[0046] Figure 1 It is a left side view of a tractor.

[0047] Figure 2 It is a left side view showing the configuration of a cover member or the like.

[0048] Figure 3 It is a left side view showing the configuration of a lid portion or the like.

[0049] Figure 4 It is a view showing the arrangement of the power supply unit or the like when observed from the connection direction of the charger.

[0050] Figure 5 It is a partially cutaway top view showing the configuration of a lid portion or the like.

[0051] Figure 6 It is a partially cutaway front view showing the configuration of a frame portion or the like.

[0052] Figure 7 It is a front view showing the configuration of a power port or the like.

[0053] Figure 8 It is a front view showing the configuration of an end cap or the like.

[0054] Figure 9 It is a top view showing the configuration of an end cap or the like.

[0055] Figure 10 It is a left side view showing the configuration of an end cap or the like.

[0056] Figure 11 This is a right-side view showing the structure of the end mask and the like.

[0057] Figure 12 This is a partially cut-away right-side view showing the structure of the manual operation implement and the like.

[0058] Figure 13 This is a perspective view showing the structure of the first connecting portion and the first locking mechanism.

[0059] Figure 14 This is a front view showing the structure of the end mask and the like in the first alternative embodiment.

[0060] Figure 15 This is a left-side view showing the structure of the end mask and the like in the first alternative embodiment.

[0061] Figure 16 This is a right-side view showing the structure of the end mask and the like in the first alternative embodiment. Detailed Embodiment

[0062] The embodiments for implementing the present invention will be described based on the accompanying drawings. In the following description, unless otherwise specified, the direction of arrow F in the drawings is defined as "front", the direction of arrow B is defined as "rear", the direction of arrow L is defined as "left", and the direction of arrow R is defined as "right". Additionally, the direction of arrow U in the drawings is defined as "up", and the direction of arrow D is defined as "down".

[0063] 〔Overall Structure of Tractor〕

[0064] Hereinafter, the tractor A (corresponding to the "electric work vehicle" of the present invention) of the present embodiment will be described. As Figure 1 shown, the tractor A includes left and right front wheels 10 (corresponding to the "traveling device" of the present invention), left and right rear wheels 11 (corresponding to the "traveling device" of the present invention), and a cover member 12.

[0065] In addition, the tractor A includes a body frame 2 and a driver's cab 3. The body frame 2 is supported by the left and right front wheels 10 and the left and right rear wheels 11.

[0066] The cover member 12 is disposed at the front of the body. Moreover, the driver's cab 3 is provided behind the cover member 12. In other words, the cover member 12 is located in front of the driver's cab 3.

[0067] The driver's cab 3 has a protective frame 30, a driver's seat 31, and a steering wheel 32. An operator (worker) can sit on the driver's seat 31. Thus, the operator can board the driver's cab 3. By operating the steering wheel 32, the left and right front wheels 10 are steered. The operator can perform various driving operations in the driver's cab 3.

[0068] That is, the tractor A is provided with a driver's cab 3 on which an operator can ride.

[0069] In addition, the tractor A is provided with a battery 4, an inverter 5, a motor M, a transmission device T, and a front transmission mechanism FT.

[0070] As Figure 1 and Figure 2 shown, the hood member 12 is configured to be swingable about a hood swing axis Q along the left - right direction of the machine body. Thus, the hood member 12 is configured to be openable and closable. That is, the hood member 12 is configured to be opened and closed by swinging about the hood swing axis Q along the left - right direction of the machine body. In addition, as Figure 1 and Figure 2 shown, the hood swing axis Q is located at the rear of the hood member 12.

[0071] Moreover, when the hood member 12 is in the closed state, the battery 4 is covered by the hood member 12. That is, the tractor A is provided with the hood member 12 that covers the battery 4. In addition, the motor M is disposed below the battery 4.

[0072] The battery 4 supplies electric power to the inverter 5. The inverter 5 converts the DC power from the battery 4 into AC power and supplies it to the motor M. Moreover, the motor M is driven by the AC power supplied from the inverter 5. The driving force of the motor M is transmitted to the transmission device T.

[0073] The transmission device T is disposed at a position rearward of the battery 4 and behind the motor M. In addition, the front transmission mechanism FT extends forward from the transmission device T. Moreover, the transmission device T speeds up the driving force received from the motor M and transmits it to the left and right rear wheels 11. In addition, the driving force is also transmitted from the transmission device T to the left and right front wheels 10 via the front transmission mechanism FT. Thus, the left and right front wheels 10 and the left and right rear wheels 11 are driven.

[0074] That is, the tractor A is provided with the battery 4 and the motor M driven by the electric power supplied from the battery 4. In addition, the tractor A is provided with the left and right front wheels 10 and the left and right rear wheels 11 driven by the motor M.

[0075] As Figure 1 shown, a link mechanism LN is provided at the rear of the tractor A. An operating device (not shown) such as a tilling device can be connected to the link mechanism LN.

[0076] The transmission device T is configured to be able to transmit a part of the driving force received from the motor M to the operating device. Thus, the operating device is driven.

[0077] According to the above configuration, the tractor A can travel while driving with the left and right front wheels 10 and the left and right rear wheels 11, and can perform operations with the operating device.

[0078] [Power supply unit and opening]

[0079] As Figure 3 and Figure 4 shown, the tractor A is equipped with a power supply unit 20. As Figure 5 and Figure 6 shown, the power supply unit 20 is covered by the cover member 12. That is, the tractor A is equipped with a cover member 12 that covers the battery 4 and the power supply unit 20.

[0080] The power supply unit 20 is located in front of the battery 4. In addition, the power supply unit 20 is located in the left front part of the space covered by the cover member 12. In addition, the present invention is not limited to this, and the power supply unit 20 may also be located in any part of the space covered by the cover member 12. For example, the power supply unit 20 may also be located in the right front part of the space covered by the cover member 12.

[0081] The tractor A is equipped with a first wire harness 61 (refer to Figure 8 ). The power supply unit 20 is electrically connected to the battery 4 via the first wire harness 61. In addition, as Figure 4 shown, a detachable cover 21 may be installed on the power supply unit 20. A grip portion 21a that an operator can hold may also be provided on the cover 21.

[0082] As Figures 4 to 6 shown, an opening 13 is formed in the portion of the cover member 12 that faces the power supply unit 20. The operator can access the power supply unit 20 via the opening 13. When the cover 21 is installed on the power supply unit 20, the operator can insert a hand into the opening 13 to perform the attachment and detachment operation of the cover 21.

[0083] In the present embodiment, the opening 13 is formed in the left side portion of the cover member 12. However, the present invention is not limited to this. When the power supply unit 20 is located in the right front part of the space covered by the cover member 12, the opening 13 may also be formed in the right side portion of the cover member 12. That is, the opening 13 is formed in the left side portion or the right side portion of the cover member 12.

[0084] As Figure 6 shown, a charger G provided in a charging facility or the like can be connected to the power supply unit 20. When the operator connects the charger G to the power supply unit 20, the charger G is in a state of passing through the opening 13. In addition, the standards of the charger G and the power supply unit 20 are not particularly limited, and for example, it may also be CHAdeMO.

[0085] That is, the tractor A is equipped with a power supply unit 20 that can be connected to the charger G and is electrically connected to the battery 4. More specifically, the tractor A is equipped with a power supply unit 20 that can be connected to the charger G and is electrically connected to the battery 4 via the first wire harness 61.

[0086] By connecting the charger G to the power supply unit 20, power is supplied to the battery 4 via the first wire harness 61. As a result, the battery 4 is charged.

[0087] As Figure 6 shown, the power supply unit 20 is arranged in a posture facing the first direction C1. The first direction C1 is obliquely upward. More specifically, the first direction C1 is obliquely upward to the left. That is, the power supply unit 20 is arranged in a posture facing obliquely upward.

[0088] As Figure 6 shown, the opening 13 opens in the second direction C2. The second direction C2 is obliquely upward. More specifically, the second direction C2 is obliquely upward to the left.

[0089] The inclination of the first direction C1 with respect to the horizontal direction is the first angle E1. The inclination of the second direction C2 with respect to the horizontal direction is the second angle E2. The second angle E2 is smaller than the first angle E1. That is, the inclination of the orientation of the opening 13 with respect to the horizontal direction is smaller than the inclination of the orientation of the power supply unit 20 with respect to the horizontal direction.

[0090] In Figure 3 the first height position H1, the second height position H2, the third height position H3, and the fourth height position H4 are shown. The first height position H1 is the height position of the upper end of the opening 13. The second height position H2 is the height position of the upper end of the power supply unit 20. The third height position H3 is the height position of the lower end of the power supply unit 20. The fourth height position H4 is the height position of the lower end of the opening 13.

[0091] The second height position H2 is located at a position lower than the first height position H1. That is, the upper end of the power supply unit 20 is located at a position lower than the upper end of the opening 13.

[0092] The third height position H3 is located at a position higher than the fourth height position H4. That is, the lower end of the power supply unit 20 is located at a position higher than the lower end of the opening 13.

[0093] 〔Cover portion and frame portion〕

[0094] As Figures 3 to 5 shown, the tractor A is provided with a cover portion 14. The cover portion 14 is provided in a state of closing the opening 13. As Figure 3 and Figure 4 shown, the cover portion 14 can change its state between an open state and a closed state by swinging around the cover swing axis P (corresponding to the "swing axis" of the present invention). Figure 3 The cover portion 14 shown in Figure 4 and Figure 5 is in the closed state. The opening direction of the cover portion 14 is the front side.

[0095] When the lid portion 14 is in the open state, the opening 13 is open. When the lid portion 14 is in the closed state, the opening 13 is blocked by the lid portion 14. According to this configuration, the lid portion 14 can open and close the opening 13. That is, the tractor A is provided with a lid portion 14 that can open and close the opening 13.

[0096] As Figure 3 shown, the lid swing axis P is located at the front end portion of the lid portion 14. Therefore, the base end portion of the swing of the lid portion 14 is the front end portion of the lid portion 14. In addition, the free end portion of the swing of the lid portion 14 is the rear end portion of the lid portion 14.

[0097] In addition, as Figure 3 shown, the lid swing axis P is inclined forward and upward. That is, the lid swing axis P is inclined in the opening direction of the lid portion 14 with respect to the vertical direction.

[0098] In addition, as Figure 3 shown, the edge portion 14a of the lid portion 14 has a gentle inclined portion 15 and a steep inclined portion 16. Both the gentle inclined portion 15 and the steep inclined portion 16 are inclined backward and upward. The inclination of the gentle inclined portion 15 is gentler than that of the steep inclined portion 16.

[0099] The gentle inclined portion 15 is located at the lower end portion of the edge portion 14a. The rear end portion of the gentle inclined portion 15 is connected to the front end portion of the steep inclined portion 16. In other words, the upper end portion of the gentle inclined portion 15 is connected to the lower end portion of the steep inclined portion 16.

[0100] With the above configuration, the gentle inclined portion 15 is inclined in such a manner that it is located more on the upper side as it approaches the steep inclined portion 16. That is, the gentle inclined portion 15 is located at the lower end portion of the edge portion 14a and is inclined in such a manner that it is located more on the upper side as it approaches the steep inclined portion 16. In addition, the steep inclined portion 16 is inclined in such a manner that it is located more on the lower side as it approaches the gentle inclined portion 15.

[0101] As Figure 3 shown, the power supply unit 20 is located above the gentle inclined portion 15 in a side view.

[0102] As Figure 4 shown, the cover member 12 has a frame-shaped portion 40. The frame-shaped portion 40 surrounds the opening 13. That is, the cover member 12 has a frame-shaped portion 40 that surrounds the opening 13.

[0103] In addition, in Figure 4 , the lid portion 14 is in the open state and the frame-shaped portion 40 does not overlap with the power supply unit 20. In this way, the opening 13 and the power supply unit 20 are arranged such that when the lid portion 14 is in the open state, the frame-shaped portion 40 does not overlap with the power supply unit 20 when viewed in the connection direction of the charger G.

[0104] As Figure 5As shown, the frame portion 40 is configured to abut against the open lid portion 14. Further, a chamfered portion 41 is formed in a portion of the frame portion 40 that faces the open lid portion 14. The chamfered portion 41 has a shape with the corners removed. The chamfered portion 41 can be formed of a flat surface, for example, or can have a shape with rounded corners.

[0105] According to this configuration, the open lid portion 14 abuts against the chamfered portion 41.

[0106] As Figure 6 shown, the frame portion 40 has a wall-like extension portion 42. The extension portion 42 extends toward the inside of the cover member 12 with respect to the opening 13. In other words, the extension portion 42 extends toward the side where the power supply unit 20 is located with respect to the opening 13. That is, the frame portion 40 has an extension portion 42 that extends toward the side where the power supply unit 20 is located with respect to the opening 13.

[0107] In addition, the extension portion 42 can be provided in a cylindrical shape corresponding to the entire circumference of the opening 13, or can be provided corresponding to only a part of the opening 13. For example, the extension portion 42 can also be provided corresponding to only the lower portion of the opening 13. In this case, the extension portion 42 can also be a wall-like shape in a substantially horizontal posture.

[0108] As Figure 4 shown, the frame portion 40 has a wall portion 43. The wall portion 43 is located at the lower portion of the frame portion 40. The wall portion 43 is a wall-like portion formed to extend upward. According to this configuration, the wall portion 43 extends toward the power supply unit 20 when viewed in the connection direction of the charger G.

[0109] That is, the frame portion 40 has a wall portion 43 that extends toward the power supply unit 20 when viewed in the connection direction of the charger G.

[0110] As Figure 3 and Figure 4 shown, the frame portion 40 has an outer frame portion 44. As Figure 3 shown, the outer frame portion 44 has a frame-like shape that surrounds the closed lid portion 14 when viewed from the side. As Figure 4 and Figure 6 shown, the wall portion 43 extends upward from the lower portion of the outer frame portion 44.

[0111] 〔Push latch〕

[0112] As Figure 4 shown, the tractor A is equipped with a push latch 17. The push latch 17 has a latch body 17a and a receiving portion 17b.

[0113] The latch body 17a is installed in the recess 45 formed in the frame portion 40. The recess 45 is recessed toward the inside of the cover member 12. Further, the recess 45 is formed at a position corresponding to the free end portion of the cover portion 14 in the closed state. Thus, the latch body 17a is disposed at a position corresponding to the free end portion of the cover portion 14 in the closed state.

[0114] The receiving portion 17b is installed at the free end portion of the cover portion 14.

[0115] By closing the cover portion 14 from the Figure 4 state shown, the receiving portion 17b engages with the latch body 17a. Thus, the free end portion of the cover portion 14 is latched to the frame portion 40 by the push latch 17. That is, the tractor A is provided with the push latch 17 capable of latching the free end portion of the cover portion 14 to the frame portion 40.

[0116] As Figure 3 shown, a mark 18 is provided on the cover portion 14. Although not particularly limited, the mark 18 may be constituted by, for example, a plurality of small protrusions. The mark 18 is provided at a portion of the surface of the cover portion 14 corresponding to the push latch 17. That is, the mark 18 is provided at a portion of the surface of the cover portion 14 corresponding to the push latch 17.

[0117] In Figure 3 the state shown, the free end portion of the cover portion 14 is latched to the frame portion 40 by the push latch 17. In this state, if the operator presses the portion of the mark 18 in the cover portion 14, the engagement between the latch body 17a and the receiving portion 17b is released. As a result, the latching of the free end portion of the cover portion 14 to the frame portion 40 is released.

[0118] According to this configuration, the free end portion of the cover portion 14 can be engaged with or disengaged from the frame portion 40 by the push latch 17.

[0119] [Power Port]

[0120] As Figure 7 shown, a first port 51, a second port 52, a third port 53, and a fourth port 54 are provided on the front side portion of the battery 4. The first port 51, the second port 52, the third port 53, and the fourth port 54 are all power ports 50. That is, the tractor A is provided with the power ports 50 provided on the side portion of the battery 4.

[0121] The first port 51 is an input port for inputting power to the battery 4. The second port 52, the third port 53, and the fourth port 54 are all output ports for outputting the power from the battery 4. That is, the power port 50 is an input port for inputting power to the battery 4 or an output port for outputting the power from the battery 4.

[0122] [Connection Port and Electrical Wiring]

[0123] AsFigure 7 and Figure 8 As shown in Figure 8 , connection parts 70 are respectively connected to each of the power ports 50. More specifically, a first connection part 71 is connected to a first port 51 from the front side. A second connection part 72 is connected to a second port 52 from the front side. A third connection part 73 is connected to a third port 53 from the lower side. A fourth connection part 74 is connected to a fourth port 54 from the front side.

[0124] The first connection part 71, the second connection part 72, the third connection part 73, and the fourth connection part 74 are all connection parts 70. These connection parts 70 are arranged in a state of being arranged in the left - right direction.

[0125] In this way, the tractor A is provided with a plurality of power ports 50 and a plurality of connection parts 70 corresponding to the plurality of power ports 50. The plurality of connection parts 70 are arranged in a horizontally arranged state.

[0126] As Figure 7 and Figure 8 shown, each connection part 70 is respectively provided at one end of the electrical wiring 60. Each electrical wiring 60 is electrically connected to the corresponding power port 50 via the connection part 70. That is, the tractor A is provided with electrical wiring 60 electrically connected to the power ports 50. In addition, the tractor A is provided with connection parts 70 provided at one end of the electrical wiring 60 and connected to the power ports 50.

[0127] More specifically, the tractor A is provided with a first wiring harness 61, a second wiring harness 62, a third wiring harness 63, and a fourth wiring harness 64. The first wiring harness 61, the second wiring harness 62, the third wiring harness 63, and the fourth wiring harness 64 are all electrical wiring 60.

[0128] Here, the configuration of the front part of the body of the tractor A will be described. As Figures 9 to 11 shown, at the front part of the body of the tractor A, there are a radiator 6, a cooling fan 7, an auxiliary battery 8, a voltage converter 9, a water storage tank (not shown), and an oil cooler (not shown). When the hood member 12 is in the closed state, the radiator 6, the cooling fan 7, the auxiliary battery 8, the voltage converter 9, the water storage tank, and the oil cooler are covered by the hood member 12.

[0129] The water storage tank can store cooling water. The radiator 6 and a water pump (not shown) are included in the cooling water path in the tractor A. The water pump pumps the cooling water, whereby the cooling water circulates in this cooling water path. Then, the cooling water passes through the radiator 6 and is thus cooled.

[0130] The radiator 6 is supported by a radiator frame 19. The radiator frame 19 is configured in a portal shape covering the left and right side portions of the radiator 6. That is, the tractor A is provided with a radiator 6 and a radiator frame 19 that supports the radiator 6.

[0131] The cooling fan 7 is disposed behind the radiator 6. The cooling fan 7 conveys cooling air rearward. Thus, outside air is introduced into the inside of the hood member 12 through the outside air introduction portion 12a (see Figure 2 ) provided at the front portion of the hood member 12 and passes through the radiator 6. As a result, the radiator 6 is cooled.

[0132] The auxiliary machine battery 8 supplies power to various auxiliary machines. In addition, power is supplied from the battery 4 to the voltage converter 9. Then, the voltage converter 9 steps down the power from the battery 4 and supplies it to the auxiliary machine battery 8.

[0133] The working oil in the tractor A is cooled by passing through the oil cooler.

[0134] In addition, as Figure 8 and Figure 11 shown, a fuse box 23 is disposed in front of the battery 4. A box cover 24 is provided on the upper portion of the fuse box 23. An operator can access the inside of the fuse box 23 by removing the box cover 24 upward.

[0135] As Figure 8 shown, a first connection portion 71 is provided at one end of the first wire harness 61. The other end of the first wire harness 61 is connected to the power supply portion 20. By connecting a charger G (see Figure 6 ) to the power supply portion 20, power is supplied to the battery 4 via the power supply portion 20, the first wire harness 61, and the first connection portion 71. Thus, the battery 4 is charged. That is, the first port 51 is a power port 50 for high-voltage electricity.

[0136] A second connection portion 72 is provided at one end of the second wire harness 62. The other end of the second wire harness 62 is connected to the inverter 5. Power from the battery 4 is supplied to the inverter 5 via the second connection portion 72 and the second wire harness 62. That is, the second port 52 is a power port 50 for high-voltage electricity.

[0137] A third connection portion 73 is provided at one end of the third wire harness 63. The other end of the third wire harness 63 is connected to the voltage converter 9. Power from the battery 4 is conveyed to the voltage converter 9 via the third connection portion 73 and the third wire harness 63. That is, the third port 53 is a power port 50 for high-voltage electricity.

[0138] A fourth connection portion 74 is provided at one end of the fourth wire harness 64. The other end of the fourth wire harness 64 is connected to an electronic control device such as an ECU (Electronic Control Unit) of the tractor A, for example. Power from the battery 4 is conveyed to the electronic control device via the fourth connection portion 74 and the fourth wire harness 64. That is, the fourth port 54 is a power port 50 for low-voltage electricity.

[0139] In this way, Figure 7The multiple power ports 50 shown include power ports 50 for high-voltage electricity and power ports 50 for low-voltage electricity.

[0140] 〔Locking mechanism〕

[0141] As Figure 8 、 Figure 12 、 Figure 13 shown, the tractor A is equipped with a locking mechanism 80. The locking mechanism 80 can lock the connecting portion 70 in a state of being connected to the power port 50. That is, the tractor A is equipped with a locking mechanism 80 that can lock the connecting portion 70 in a state of being connected to the power port 50.

[0142] More specifically, the first connecting portion 71 is locked in a state of being connected to the first port 51 by the first locking mechanism 81. The second connecting portion 72 is locked in a state of being connected to the second port 52 by the second locking mechanism 82. Both the first locking mechanism 81 and the second locking mechanism 82 are the locking mechanism 80.

[0143] The first locking mechanism 81 and the second locking mechanism 82 have the same structure as each other. Hereinafter, the structure of the first locking mechanism 81 will be described in detail. In addition, the description of the structure of the first locking mechanism 81 in the following description also applies equally to the second locking mechanism 82.

[0144] As Figure 7 、 Figure 12 、 Figure 13 shown, the first locking mechanism 81 has left and right protrusions 50a, a manual operation device 84, and a sliding portion 89. As Figure 7 shown, the left and right protrusions 50a in the first locking mechanism 81 protrude left and right from the first port 51. In addition, the left and right protrusions 50a in the second locking mechanism 82 protrude left and right from the second port 52.

[0145] As Figure 12 and Figure 13 shown, the manual operation device 84 includes left and right arm portions 85 and a connecting portion 86. The left and right arm portions 85 extend in the front-rear direction. In addition, the front end portions of the left arm portion 85 and the right arm portion 85 are connected via the connecting portion 86. The connecting portion 86 extends in the left-right direction. In addition, the left and right arm portions 85 and the connecting portion 86 may be integrally formed or separated from each other.

[0146] Grooves 87 and holes 88 are respectively formed in the left and right arm portions 85. As Figure 12 shown, the groove 87 is an arc-shaped groove centered on the operation axis Y extending in the left-right direction. As Figure 13 shown, the hole 88 is formed at the upper end portion of the arm portion 85. The hole 88 communicates with the groove 87.

[0147] AsFigure 12 and Figure 13 As shown in Figure 13 , the left and right protrusions 50a respectively enter the groove portions 87. In a state where the left and right protrusions 50a respectively enter the groove portions 87, the manual operation device 84 can swing around the operation axis Y. By swinging around the operation axis Y, the manual operation device 84 can change its posture between a first posture and a second posture. In Figure 12 , the manual operation device 84 in the first posture is shown by a solid line. In addition, the manual operation device 84 in the second posture is shown by a phantom line.

[0148] As Figure 12 shown, the sliding portion 89 is configured to be slidable in the vertical direction. By sliding in the vertical direction, the sliding portion 89 can change its posture between a fixed posture and a released posture. In Figure 12 , the sliding portion 89 in the fixed posture is shown by a solid line. In addition, the sliding portion 89 in the released posture is represented by a phantom line.

[0149] When the manual operation device 84 is in the first posture and the sliding portion 89 is in the fixed posture, the first locking mechanism 81 is in a locked state. The locked state means a state in which the connecting portion 70 is locked in a state of being connected to the power port 50.

[0150] The sliding portion 89 is configured to restrict the swinging of the manual operation device 84 when the first locking mechanism 81 is in the locked state. That is, in the locked state, the swinging of the manual operation device 84 is restricted by the sliding portion 89. When the sliding portion 89 is set to the released posture from this state, the manual operation device 84 can swing. When the operator swings the manual operation device 84 to the second posture, the first locking mechanism 81 becomes an unlocked state. The unlocked state means a state in which the connecting portion 70 is allowed to be detached from the power port 50.

[0151] That is, the locking mechanism 80 is configured to be able to switch between a locked state in which the connecting portion 70 is locked in a state of being connected to the power port 50 and an unlocked state in which the connecting portion 70 is allowed to be detached from the power port 50 according to the operation of the manual operation device 84.

[0152] In addition, in the unlocked state, by pulling the manual operation device 84 and the first connecting portion 71 forward together, the left and right protrusions 50a pass through the hole portion 88. As a result, the left and right protrusions 50a are detached from the groove portion 87.

[0153] Here, as Figure 7 , Figure 8 , Figure 12 , Figure 13 shown, the tractor A is provided with a plurality of wiring structures 25. The wiring structure 25 includes a power port 50, an electrical wiring 60, a connecting portion 70, a locking mechanism 80, and a manual operation device 84.

[0154] That is, in the present embodiment, a plurality of wiring structures 25 including a power port 50, an electrical wiring 60, a connection portion 70, a locking mechanism 80, and a manual operation device 84 are provided.

[0155] More specifically, in the present embodiment, two wiring structures 25 are provided. One wiring structure 25 includes a first port 51, a first wire harness 61, a first connection portion 71, a first locking mechanism 81, and a manual operation device 84 of the first locking mechanism 81. The other wiring structure 25 includes a second port 52, a second wire harness 62, a second connection portion 72, a second locking mechanism 82, and a manual operation device 84 of the second locking mechanism 82.

[0156] In addition, the number of the provided wiring structures 25 is not limited to two, and may be one, or three or more.

[0157] In addition, as Figure 8 shown, in the present embodiment, a plurality of manual operation devices 84 are arranged in a horizontally arranged state. More specifically, two manual operation devices 84 are arranged in a horizontally arranged state. One manual operation device 84 is a manual operation device 84 of the first locking mechanism 81. The other manual operation device 84 is a manual operation device 84 of the second locking mechanism 82.

[0158] In addition, the number of the provided manual operation devices 84 is not limited to two, and may be one, or three or more.

[0159] 〔End cover〕

[0160] As Figure 8 shown, the tractor A is provided with an end cover 26. The end cover 26 is formed by bending a single plate-like member. As Figure 8 and Figure 9 shown, the end cover 26 covers the first connection portion 71, the second connection portion 72, the third connection portion 73, and the fourth connection portion 74.

[0161] That is, the end cover 26 is composed of a single member and is arranged in a state of covering a plurality of connection portions 70. In addition, the end cover 26 is a connection portion cover that covers the connection portion 70. In other words, the tractor A is provided with an end cover 26 that covers the connection portion 70.

[0162] As Figure 12 shown, the end cover 26 has a shape that is open downward.

[0163] As Figures 8 to 12 shown, the end cover 26 has an upper wall portion 33, an inclined portion 34, a front wall portion 35, a left wall portion 36, and a right wall portion 37.

[0164] The upper wall portion 33 is a wall-like portion in a horizontal posture. The inclined portion 34 is a wall-like portion extending forward and downward from the front end portion of the upper wall portion 33. By providing the inclined portion 34, the upper surface of the end cover 26 is inclined.

[0165] The front wall portion 35 is a wall-like portion extending downward from the lower end portion of the inclined portion 34. Both the left wall portion 36 and the right wall portion 37 are wall-like portions in a vertical posture. That is, the end cover 26 has a left wall portion 36 and a right wall portion 37 in a vertical posture.

[0166] The left wall portion 36 and the right wall portion 37 face each other. The interval between the left wall portion 36 and the right wall portion 37 corresponds to the width of the battery 4 in the approaching and separating direction of the left wall portion 36 and the right wall portion 37. In addition, in the present embodiment, the approaching and separating direction of the left wall portion 36 and the right wall portion 37 is the left-right direction.

[0167] As Figure 8 , Figure 10 , Figure 11 As shown, in a state where the end cover 26 is attached to the body of the tractor A, the left wall portion 36 abuts against the left side wall 4a of the battery 4, and the right wall portion 37 abuts against the right side wall 4b of the battery 4. That is, in a state where the end cover 26 is attached to the body, the left wall portion 36 and the right wall portion 37 sandwich the battery 4.

[0168] In addition, the upper wall portion 33 is placed on the upper part of the front end portion of the battery 4. That is, the upper part of the end cover 26 is placed on the upper part of the battery 4.

[0169] As Figure 8 and Figure 9 As shown, the left end portion of the upper wall portion 33 is fixed to the battery 4 by the first bolt b1. The right end portion of the upper wall portion 33 is fixed to the battery 4 by the second bolt b2. In addition, as Figure 11 shown, the rear end portion of the right wall portion 37 is fixed to the battery 4 by the third bolt b3. The first bolt b1, the second bolt b2, and the third bolt b3 are all loaded and unloaded using tools (such as wrenches, wrenches).

[0170] That is, the end cover 26 is fixed to the body by the first bolt b1, the second bolt b2, and the third bolt b3 that are loaded and unloaded using tools. In addition, the end cover 26 is fixed to the battery 4 by the first bolt b1, the second bolt b2, and the third bolt b3. Thus, the end cover 26 is supported by the battery 4.

[0171] As Figure 12 shown, the front wall portion 35 is located in the middle of the operation locus K of the manual operation tool 84 of the first locking mechanism 81. In addition, the same applies to the manual operation tool 84 of the second locking mechanism 82. That is, the front wall portion 35 is arranged in a state of covering the operation loci K of the manual operation tool 84 of the first locking mechanism 81 and the manual operation tool 84 of the second locking mechanism 82.

[0172] In this way, the tractor A is provided with the end mask 26 located in the middle of the operation locus K of the manual operation implement 84. In addition, the end mask 26 is composed of a single component and is arranged in a state covering the respective operation loci K of a plurality of manual operation implements 84.

[0173] In addition, as Figure 8 and Figure 11 shown, the fuse box 23 is located below and near the end mask 26. It can also be configured that when the end mask 26 is installed on the machine body, when the operator wants to disassemble the box cover 24 upward, the box cover 24 interferes with the end mask 26. Thus, it can also be that when the end mask 26 is installed on the machine body, the disassembly of the box cover 24 is difficult or impossible.

[0174] 〔Supporting arm〕

[0175] As Figure 2 and Figure 9 shown, the tractor A is provided with the supporting arm 46. When the cover member 12 is in the closed state, the supporting arm 46 is covered by the cover member 12.

[0176] That is, the tractor A is provided with the supporting arm 46 covered by the cover member 12.

[0177] In addition, as Figure 2 shown, the cover member 12 has the arm connecting portion 12b.

[0178] The supporting arm 46 is configured to be able to swing up and down around the base end portion 46a. And, in a state where the cover member 12 is kept in the open state, the supporting arm 46 is made to stand up, and the free end portion 46b is connected to the arm connecting portion 12b. Thus, the free end portion 46b comes into contact with the cover member 12 from the lower side. Thus, the supporting arm 46 is in a state of supporting the cover member 12 in the open state.

[0179] In this way, the supporting arm 46 is configured to be able to swing up and down around the base end portion 46a of the supporting arm 46, and by making the free end portion 46b of the supporting arm 46 come into contact with the cover member 12 from the lower side in a state where the supporting arm 46 stands up, the cover member 12 can be supported in the open state.

[0180] As Figures 8 to 10 shown, the tractor A is provided with the first brace 55 and the second brace 56. The first brace 55 is a lightning-shaped component extending from the front end portion of the left end portion of the battery 4 toward the right front side. The rear end portion of the first brace 55 is fixed to the battery 4. The front end portion of the first brace 55 is connected to the second brace 56.

[0181] The second brace 56 is a bent member extending in the vertical direction. The lower end portion of the second brace 56 is connected to the front end portion of the first brace 55. The base end portion 46a of the support arm 46 is connected to the upper end portion of the second brace 56 in a relatively rotatable state. Thus, the base end portion 46a of the support arm 46 is supported by the front end portion of the left end portion of the battery 4 via the second brace 56 and the first brace 55.

[0182] In addition, as Figures 8 to 10 shown, the tractor A is provided with a third brace 57. The third brace 57 extends obliquely upward from the front wall portion 35. A holding portion 58 is supported at the upper end portion of the third brace 57. The holding portion 58 holds the support arm 46 in a horizontal posture by clamping the support arm 46. The operator can remove the support arm 46 from the holding portion 58 to erect the support arm 46.

[0183] With this configuration, the support arm 46 is supported by the front wall portion 35 via the holding portion 58 and the third brace 57. That is, the support arm 46 is supported by the end mask 26.

[0184] As Figures 8 to 10 shown, the tractor A is provided with a fourth brace 59. The fourth brace 59 extends in the front-rear direction. The rear end portion of the fourth brace 59 is connected to the front end portion of the first brace 55. The front end portion of the fourth brace 59 is supported by the radiator frame 19.

[0185] 〔Support structure of the power supply unit〕

[0186] As Figures 8 to 10 shown, the power supply unit 20 is supported by a support frame 65. The support frame 65 is a bent plate-like member. The power supply unit 20 is disposed in a state of passing through the support frame 65.

[0187] The upper end portion of the support frame 65 is supported by the first brace 55. The rear end portion of the support frame 65 is supported by the fifth brace 66. The front end portion of the lower end portion of the support frame 65 is supported by the sixth brace 67.

[0188] As Figure 5 shown, the fifth brace 66 is a lightning-shaped member extending obliquely rightward and forward from the front end portion of the left end portion of the battery 4. The rear end portion of the fifth brace 66 is fixed to the battery 4. The front end portion of the fifth brace 66 is connected to the support frame 65.

[0189] As Figure 5 、 Figure 8 、 Figure 10 shown, the sixth brace 67 is a member extending in the front-rear direction. The rear end portion of the sixth brace 67 is connected to the support frame 65. The front end portion of the sixth brace 67 is connected to the radiator frame 19.

[0190] In addition, as Figure 8 and Figure 10As shown, a notch J1 is formed in the end mask 26. The notch J1 is formed from the lower left part of the front wall portion 35 to the lower part of the left wall portion 36. The first stay 55 and the support frame 65 are disposed at positions entering the notch J1.

[0191] In addition, as Figure 8 shown, the front wall portion 35 extends to a position lower than the lower end positions of the first connection portion 71 and the second connection portion 72.

[0192] According to the configuration described above, by making the lid portion 14 in an open state, the opening 13 can be opened. And an operator can approach the power supply portion 20 from the outside of the cover member 12 via the opening 13. Thus, the charger G can be connected to the power supply portion 20 without opening the cover member 12.

[0193] Therefore, according to the configuration described above, the tractor A capable of reducing the labor required for the charging operation of the battery 4 can be realized.

[0194] 〔First Other Embodiment〕

[0195] In the above embodiment, the end mask 26 is constituted by a single member.

[0196] However, the present invention is not limited thereto. Hereinafter, regarding the first other embodiment of the present invention, the description will be centered on the points different from the above embodiment. The configuration other than the parts described below is the same as that of the above embodiment. In addition, the same reference numerals are assigned to the configurations the same as those of the above embodiment.

[0197] As Figures 14 to 16 shown, in the first other embodiment, the end mask 26 is divided into two mask bodies, a first mask body 91 and a second mask body 92. In addition, the present invention is not limited thereto, and the end mask 26 may be divided into three or more mask bodies.

[0198] That is, the end mask 26 is divided into a plurality of mask bodies.

[0199] The first mask body 91 and the second mask body 92 are arranged in a horizontally arranged state. The first mask body 91 is located to the right of the second mask body 92.

[0200] As Figure 14 and Figure 16 shown, the first mask body 91 has an upper wall portion 93, an inclined portion 94, a front wall portion 95, and a right wall portion 97.

[0201] The upper wall portion 93 is a wall-like portion in a horizontal posture. The inclined portion 94 is a wall-like portion extending forward and downward from the front end portion of the upper wall portion 93. By providing the inclined portion 94, the upper surface of the first mask body 91 is inclined.

[0202] The front wall portion 95 is a wall-like portion extending downward from the lower end portion of the inclined portion 94. The right wall portion 97 is a wall-like portion in a vertical posture.

[0203] As Figure 14 and Figure 15 shown, the second cover body 92 has an upper wall portion 90 and a front wall portion 98. The upper wall portion 90 is a wall-like portion in a horizontal posture. The front wall portion 98 is a wall-like portion extending downward from the front end portion of the upper wall portion 90.

[0204] Both the first cover body 91 and the second cover body 92 have a shape that is open downward. In addition, the second cover body 92 has a shape that is also open to the left.

[0205] The first cover body 91 covers the first connection portion 71 and the second connection portion 72. The second cover body 92 covers the third connection portion 73 and the fourth connection portion 74.

[0206] The first cover body 91 is fixed to the battery 4 by the second bolt b2 and the third bolt b3. The second cover body 92 is fixed to the battery 4 by the first bolt b1.

[0207] In the first alternative embodiment, the tractor A includes a seventh brace 68, an eighth brace 69, and a ninth brace 75. As Figures 14 to 16 shown, the seventh brace 68 has a stepped shape when viewed from the front. The seventh brace 68 is fixed to the front surface of the front wall portion 98.

[0208] The eighth brace 69 is a member extending in the front-rear direction. The rear portion of the eighth brace 69 is fixed to the lower end portion of the seventh brace 68. The front portion of the eighth brace 69 is fixed to the radiator frame 19.

[0209] According to this configuration, the second cover body 92 is supported by the radiator frame 19 via the seventh brace 68 and the eighth brace 69. That is, the end cover 26 is supported by the radiator frame 19.

[0210] In addition, a holding portion 58 and a ninth brace 75 are supported at the upper end portion of the seventh brace 68. The ninth brace 75 is a member extending in the left-right direction. The right portion of the ninth brace 75 is fixed to the upper end portion of the seventh brace 68. The base end portion 46a of the support arm 46 is connected to the left end portion of the ninth brace 75 in a relatively rotatable state.

[0211] In addition, as Figure 14 and Figure 15 shown, in the first alternative embodiment, the support frame 65 has an extended support portion 76 extending upward. The upper end portion of the extended support portion 76 is fixed to the seventh brace 68.

[0212] According to this configuration, the power supply unit 20 is supported by the second cover body 92 via the support frame 65 and the seventh brace 68. That is, the power supply unit 20 is supported by the end cover 26.

[0213] As Figure 15 shown, a notch J2 is formed in the upper part of the rear end of the support frame 65. The front wall portion 98 enters the notch J2.

[0214] 〔Other Embodiments〕

[0215] (1)The power port 50 may also be provided on any one of the rear side portion, the right side portion, and the left side portion of the battery 4.

[0216] (2)The manual operation implement 84 may not be included in the locking mechanism 80.

[0217] (3)An engine may also be provided. In this case, the front wheels 10 and the rear wheels 11 may also be driven by the motor M and the engine.

[0218] (4)The cover member 12 may also be disposed at a position other than in front of the driver's section 3. For example, the cover member 12 may be located behind the driver's section 3.

[0219] (5)The power supply unit 20 may also be located above the steep inclined portion 16 when viewed from the side.

[0220] (6)The cover portion 14 may also be of any shape. For example, the edge portion 14a of the cover portion 14 may not have the gentle inclined portion 15 and the steep inclined portion 16.

[0221] (7)The cover portion 14 may also change its state between the open state and the closed state by a method other than swinging. For example, the cover portion 14 may be able to change its state between the open state and the closed state by sliding in the front-rear direction or the up-down direction of the machine body.

[0222] (8)The end cover 26 may not have the upper wall portion 33, nor may it have the inclined portion 34. That is, the end cover 26 may also have a shape that is open upward.

[0223] (9)The end cover 26 may also be fixed to a part of the machine body other than the battery 4 by the first bolt b1, the second bolt b2, and the third bolt b3.

[0224] (10)Instead of the end cover 26, a swing restricting portion may also be provided in the middle of the operation locus K of the manual operation implement 84. The swing restricting portion may not cover the connecting portion 70. The swing restricting portion is preferably fixed to the machine body by a fixing device (such as a bolt) that can be attached and detached using tools (such as a wrench, a spanner).

[0225] (11)The support arm 46 may not be supported by the end cover 26.

[0226] In addition, as long as there is no contradiction, the components disclosed in the above-described embodiments (including other embodiments, the same applies hereinafter) can be combined and applied with the components disclosed in other embodiments. In addition, the embodiments disclosed in this specification are illustrative, and the embodiments of the present invention are not limited thereto, and can be appropriately changed without departing from the purpose of the present invention.

[0227] Industrial Applicability

[0228] The present invention can be used not only for tractors, but also for various electric work vehicles such as combine harvesters, transplanters, and construction work machines.

[0229] Explanation of Reference Numerals

[0230] 3: Driving section

[0231] 4: Battery

[0232] 10: Front wheels (traveling device)

[0233] 11: Rear wheels (traveling device)

[0234] 12: Cover member

[0235] 13: Opening

[0236] 14: Cover portion

[0237] 14a: Edge portion

[0238] 15: Gentle slope portion

[0239] 16: Steep slope portion

[0240] 17: Push latch

[0241] 18: Mark

[0242] 20: Power supply section

[0243] 40: Frame portion

[0244] 41: Chamfered portion

[0245] 42: Extension portion

[0246] 43: Wall-like portion

[0247] A: Tractor (electric work vehicle)

[0248] G: Charger

[0249] M: Motor

[0250] P: Cover swing axis (swing axis)

Claims

1. An electric working vehicle, It is characterized in that have: Battery; a motor driven by electric power supplied from the battery; a travel device driven by the motor; a power supply unit, which can be connected to a charger and is electrically connected to the battery; as well as a cover member that covers the battery and the power supply unit, An opening is formed in a portion of the cover member that is opposite to the power supply portion. The electric working vehicle includes a cover portion capable of opening and closing the opening.

2. The electric working vehicle according to claim 1, It is characterized in that It has a driving section where the operator can sit. The cover member is located in front of the driving portion, The opening is formed at a left side portion or a right side portion of the cover member.

3. The electric working vehicle according to claim 2, It is characterized in that The edge of the cover has a gently inclined portion and a steeply inclined portion. The gently inclined portion is located at the lower end of the edge portion and is inclined so as to be located upward as it approaches the steeply inclined portion. The upper end of the gently inclined portion is connected to the lower end of the steeply inclined portion. The steeply inclined portion is inclined so as to be located at a lower side as it approaches the gently inclined portion. The inclination of the gently inclined portion is gentler than that of the steeply inclined portion. The power supply portion is located above the gently inclined portion in a side view.

4. The electric working vehicle according to any one of claims 1 to 3, It is characterized in that The cover member has a frame-shaped portion surrounding the opening, The opening and the power supply portion are arranged so that, when the cover portion is in an open state, the frame-shaped portion does not overlap with the power supply portion when viewed in the connection direction of the charger.

5. The electric working vehicle according to any one of claims 1 to 4, It is characterized in that The cover portion can change its state between an open state and a closed state by swinging around a swing axis.

6. The electric working vehicle according to claim 5, It is characterized in that The swing axis is inclined in an opening direction of the cover portion with respect to a vertical direction.

7. The electric working vehicle according to claim 6, It is characterized in that The opening direction of the cover is the front side.

8. The electric working vehicle according to any one of claims 5 to 7, It is characterized in that The cover member has a frame-shaped portion surrounding the opening, The electric working vehicle includes a push latch capable of locking the free end of the cover portion to the frame-shaped portion. The free end of the cover portion can be engaged with or disengaged from the frame portion by the push latch.

9. The electric working vehicle according to claim 8, It is characterized in that A mark is provided on a surface of the cover at a location corresponding to the push latch.

10. The electric working vehicle according to any one of claims 5 to 9, It is characterized in that The cover member has a frame-shaped portion surrounding the opening, A chamfered portion is formed on a portion of the frame-shaped portion that faces the cover portion in the opened state.

11. The electric working vehicle according to any one of claims 5 to 10, It is characterized in that The cover member has a frame-shaped portion surrounding the opening, The frame-shaped portion is configured to abut against the cover portion in an opened state.

12. The electric working vehicle according to any one of claims 1 to 11, It is characterized in that The cover member has a frame-shaped portion surrounding the opening, The frame-shaped portion has an extending portion extending toward a side where the power supply portion is located relative to the opening.

13. The electric working vehicle according to any one of claims 1 to 12, It is characterized in that The cover member has a frame-shaped portion surrounding the opening, The frame-shaped portion includes a wall-shaped portion extending toward the power supply portion when viewed in the connection direction of the charger.

14. The electric working vehicle according to any one of claims 1 to 13, It is characterized in that The power supply portion is arranged in a posture facing obliquely upward.

15. The electric working vehicle according to claim 14, It is characterized in that The inclination of the opening relative to the horizontal direction is smaller than the inclination of the power supply portion relative to the horizontal direction.

16. The electric working vehicle according to any one of claims 1 to 15, It is characterized in that The upper end of the power supply portion is located at a lower position than the upper end of the opening, The lower end of the power supply portion is located at a higher position than the lower end of the opening.

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