JP2006001330A - Conveying vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveying vehicle with a battery as a driving source which is steered without any load on a wire, and facilitates the wiring work. <P>SOLUTION: A supporting table 14 is turnably provided with respect to a vehicle body 1 in an equipment storage chamber 3, and a motor 11 to drive a front wheel 8 and a control device 40 to control the motor 11 are installed on the supporting table 14. In addition, a battery 10 and the control device 40 are connected to each other via a first wire, and the motor 11 and the control device 40 are connected to each other via a second wire. The first wire comprises a guide part which is connected to the battery 10 and guided forward along the vehicle body 1, an introduction part to be introduced from a lower part into the equipment storage chamber 3, a riser part which rises outward of the motor 11 and the control device 40 in the equipment storage chamber 3, and a passage part which is led toward a center of the equipment storage chamber 3 above the motor 11 and the control device 40, and then, suspended and connected to the control device 40. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a transport vehicle that transports luggage on the premises such as a market or a factory, and particularly relates to power supply wiring that supplies power from a battery mounted on a vehicle body.

  Conventionally, as described in Patent Document 1 and the like which will be described later as a transport vehicle, a front wheel is provided below a device storage chamber provided at the front portion of the vehicle body, and below a cargo bed provided at the rear portion of the vehicle body. Some are equipped with rear wheels, and are used to carry luggage in markets and factories. In this type of transport vehicle, the front wheel serves as both a drive wheel and a steering wheel, and the front wheel is driven by a prime mover provided in the equipment storage room, and the front wheel is driven by a handle provided in the equipment storage room. Is steered by turning. As the prime mover, a motor (electric mechanism) is adopted as disclosed in Patent Literature 1 and Patent Literature 2, and an engine is adopted as disclosed in Patent Literature 3 and Patent Literature 4. Some are done.

  Now, in a transport vehicle that uses a motor as a prime mover for driving the front wheels, a control device for controlling the motor is housed in the equipment housing chamber, and power is supplied to the motor from the battery mounted on the vehicle body via the control device. Is done. Here, in order for the motor to turn together with the front wheels during steering, an unreasonable force is applied to the electric wire connected to the motor, so that the electric wire is not damaged or hinders steering. There must be. Therefore, for example, as disclosed in Patent Document 1, a notch for passing an electric wire is provided at the bottom of the turret (equipment storage chamber), and the electric wire is protected by turning the turret by the amount of the notch. Has been done. In the technique of Patent Document 1, a control device is installed on the upper part of the turret, and a motor is installed on the lower part. The electric wire connecting the battery and the control device, and the electric wire connecting the motor and the control device are arranged at the center of the turret. It is made to pass, and the twist of the electric wire accompanying steering is suppressed.

Japanese Utility Model Publication No. 53-39929 Japanese Utility Model Publication No. 3-98152 No. 7-8284 JP 2004-42865 A

  However, since the wiring work is usually performed after the motor, the control device, and the like are first attached, the wiring structure described in Patent Document 1 has a problem that it is difficult to perform the work because the already-installed equipment is in the way. . Moreover, since the control device is arranged above the motor, the electric wire from the battery is once connected to the control device above, and the electric wire is further lowered from the control device and connected to the motor. It will overlap. Of course, it is desirable that wiring from the battery to the equipment storage room can be easily performed as well as the equipment storage room.

  The present invention enables a front wheel to be steered by operating a steering wheel in a transport vehicle using a battery as a drive source without operating an electric wire connected to a motor or a control device, and can easily perform wiring work. The purpose is to do so.

  In order to achieve the above object, the present invention includes a device storage chamber at the front of the vehicle body and a loading platform at the rear, a front wheel is provided below the device storage chamber, and the device storage chamber further includes In the transport vehicle provided with a handle for steering the front wheel, a battery mounted on the vehicle body below the cargo bed, a vehicle that is turnable with respect to the vehicle body in the equipment storage chamber, the front wheel and the handle, A support base connected to each other; a motor installed on the support base for driving the front wheel; and a control device installed on the support base for controlling the motor; and connecting the battery and the control device. A guide portion comprising a first electric wire and a second electric wire connecting the motor and the control device, wherein the first electric wire is connected to the battery and guided to the front along the vehicle body. When An introduction part that is continuous with the guide part and is led into the equipment storage room from below the equipment storage room, and is continuous with the introduction part and stands outside the motor and the control device in the equipment storage room. A rising portion that is raised, and a transition portion that is continuous with the rising portion, is led toward the center of the device storage chamber above the motor and the control device, and then is hung down and connected to the control device. It is set as the characteristic characterized by becoming.

  According to the present invention, when the handle is operated, the motor and the control device are swung integrally with the support base. During the swiveling, the connecting portion of the first electric wire is connected to the motor and The control device swings with a base point (swing center) above the control device. For this reason, the crossing portion is not forced and smooth turning is realized while protecting the crossing portion. In addition, since the upright portion is raised outside the motor and the control device and is guided to the upper side of the motor and the control device, there is no possibility of contacting or catching the rotating motor, the control device, or the support base. . In addition, the upright portion is raised outward from the motor and the control device, and the continuous crossing portion is led from above the motor and the control device to the control device, so the motor and the control device are installed on the support base. Wiring work can be performed without problems even afterwards. Furthermore, since the introduction part is introduced into the equipment storage room from below, it is protected by being covered with the equipment storage room from above, and in addition, the introduction part is smoothly continued to the upright part that is raised in the equipment storage room. Therefore, there is an advantage that the operation is easy. Furthermore, since the guiding portion is guided forward along the vehicle body, that is, toward the front portion of the vehicle body where the equipment storage chamber is located, the operator can easily perform the wiring work. In addition, since the motor and the control device are installed on the same support base, the second electric wire between the motor and the control device can be easily connected. There is no need to overwhelm the wires.

  In the present invention, the support base is provided so as to be pivotable about the longitudinal axis at the approximate center of the equipment storage chamber, the motor is installed at the center of the support base, and the control device is provided on the support base. The crossover portion is installed at a position outside the motor, and the crossing portion is guided above the motor and the control device, via the approximate center of the device storage chamber, and outward from the motor. It can be set as the structure characterized by hanging and being connected to the said control apparatus. According to this, the crossing portion can be swung easily, and the connection to the control device can be performed without the motor being in the way.

  Further, in the present invention, the handle is disposed above the device storage chamber and is operated by a driver, a base disposed above the motor and the control device in the device storage chamber, and the base And a wheel that is connected to the wheel and a shaft that extends downward from the base and is supported by the support. The shaft is the motor of the support. The upright portion is arranged to face the shaft with the motor in between, and the connecting portion continuous therewith is the base, the motor, and the control device. Between the motor and the shaft, and is connected to the control device after being led toward the center of the equipment storage chamber. Kill. According to this, the upright part and the transition part of the first electric wire do not hinder the operation of the handle, and the shaft of the handle is not hindered from being connected to the support base. In addition, the handle and the support base can be rotated together by connecting the shaft to the support base. At this time, the crossover section and the base, or the crossover section and the shaft come into contact with each other, and the crossover section is cut. The transition part can be safely swung. Further, the wiring work can be performed in a state where the shaft is not connected to the support base, that is, the handle is not provided in the device storage chamber and is removed from the device storage chamber, so that the work can be easily performed. There is.

  In the present invention, the device storage chamber is supported by the vehicle body, and a pillar that is erected vertically, and a side cover that is detachably attached to the pillar and covers the motor and the control device from the side. The above-described upright portion is raised and fixed along the inner side surface of the side cover. According to this, the portion of the first electric wire that is arranged in the equipment storage chamber is covered from the side by the side cover attached to the pillar, so that it can be protected, and the side cover can be protected from the pillar. Since the wiring work can be performed in the removed state, the workability is very good.

  In the above-described configuration, a support member extending toward the center of the device storage chamber is supported by the pillar, and the support member is more than the center portion of the device storage chamber among the transition portions. The part on the upright side can be fixed. According to this, since it is led to the substantially central portion of the equipment storage chamber along the support member, the crossover portion can be prevented from hanging down and coming into contact with the motor or the control device, and the crossover portion can be attached to the support member. Since it only needs to be fixed as appropriate, the operation can be easily performed.

  Now, in the present invention, the vehicle body is provided with a pair of left and right side frames that are spaced apart in the left-right direction and provided in the front-rear direction, and the front portions of the side frames are connected to each other. A front frame that supports the storage chamber, and the loading platform is supported over the rear portions of the side frames, and the battery is mounted on the vehicle body between the side frames. The guide portion may be fixed along the inner side of the side frame and guided forward. According to this, the guide portion can be protected from the outside by the side frame, the guide portion can be prevented from hanging down, and the guide portion can be simply fixed to the side frame as appropriate. Work can be done.

  In the above configuration, the vehicle body is provided between the front frame and the loading platform so as to be detachable across the side frames, and a boundary portion between the front end of the cab and the rear end of the front frame. With the cross frame provided by connecting the both side frames, the guide portion is guided to the front frame along the side frame and forward to the front frame. It is led upward from the upper surface of the front frame through the provided through-hole, and the introduction part continuous therewith is led into the equipment storage chamber from below the side of the equipment storage room. be able to. According to this, since the guide section only needs to be appropriately fixed along the side frame, the operator can easily perform wiring, and in particular, the wiring of the guide section below the cab is the cab. Since it can be removed from the side frame, it is very easy to work. In addition, since the first electric wire is introduced into the equipment storage room from below the side part in front of the cross frame, the introduction part is located in front of the front end of the cab, and the introduction part is for the driver on the cab. There is no hindrance to driving or getting on or off the cab.

  In the above configuration, the vehicle body includes a cab that is detachably provided between the front frame and the loading platform across the side frames, and a front end of the cab and a rear end of the front frame. With the cross frame provided by connecting the both side frames at the boundary portion, the guide portion is led to the connection point between the side frame and the cross frame along the side frame. Above, guided to the center side of the vehicle body along the cross frame, and further guided upward from the upper surface of the cab through a notch provided at the front end of the cab, the continuous above The introduction portion can be led into the device storage chamber from below the rear of the device storage chamber. According to this, since the guide portion only needs to be fixed along the side frame and the cross frame as appropriate, the operator can easily perform wiring. Also, by passing the notch provided at the front end of the cab, the wiring of the introduction part above the cab can be performed as it is, and the wiring of the guiding part below the cab is connected to the cab. Since it can be performed by removing it from the side frame, it is easy to work and the burden on the operator is reduced.

  Further, in the above configuration, a cylindrical housing opened up and down is erected at the center in the left-right direction of the front frame, and the front wheel is rotatably supported on the housing, and the power from the motor is transmitted to the housing. A power transmission device that transmits to the front wheels is provided so as to be able to turn around a longitudinal axis, and the support base is fixedly supported by the power transmission device so as to be capable of turning with respect to the vehicle body. In addition, it can be introduced into the device storage chamber outside the housing. According to this, the introduction part does not hinder the turning of the power transmission device and the support base, and the introduction part is not forced during turning. In addition, the work can be performed from the outside, and since it can be smoothly continued to the upright portion that is started up from the motor and the control device, there is an advantage that the work can be easily performed.

  As described above, according to the present invention, the first electric wire connecting the battery and the control device is disposed outside and above the motor and the control device in the equipment storage chamber, and is led to the control device. Therefore, the wiring work can be easily performed even after the motor and the control device are installed on the support base. Further, there is no fear that the first electric wire will be overwhelmed with the steering, and the first electric wire will not hinder the steering. In addition, since the motor and the control device are installed on the same support base, the second electric wire connecting the motor and the control device can be easily connected, and the second electric wire cannot be overloaded with steering. There is no fear of this.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, a transport vehicle according to an embodiment of the present invention (hereinafter referred to as “embodiment 1”) includes a front frame 2 at the front portion of a vehicle body 1, and various devices are accommodated in the front frame 2. A device storage chamber 3 is provided to be supported. A loading platform 4 is supported at the rear of the vehicle body 1, and a driving platform 5 on which a driver gets on is provided between the front frame 2 and the loading platform 4. The cab 5 is fully opened to the left and right, and is partitioned from the loading platform 4 by a backrest 6 in the front-rear direction.

  As shown in FIG. 2, a bumper 7 is provided at the front end portion of the vehicle body 1, that is, the front end portion of the front frame 2, and a front wheel 8 is provided at a position below the device storage chamber 3 at the front portion of the vehicle body 1. ing. A rear wheel 9 is provided at the rear part of the vehicle body 1, and the transport vehicle travels on the front wheel 8 and the rear wheel 9. A battery 10 is mounted on the vehicle body 1 behind the cab 5 and in front of the rear wheel 9, and electric power is supplied from the battery 10 to each part. An opening / closing type cover is provided on the loading platform 4 above the battery 10, and maintenance of the battery 10 can be performed while the loading platform 4 and the battery 10 are supported on the vehicle body 1 by opening the cover. It is made to be able to.

  As shown in FIG. 2, the vehicle body 1 is mainly provided by connecting a pair of side frames 1L and 1R, which are arranged apart from each other in the left-right direction and provided in the front-rear direction, and both side frames 1L, 1R. Cross frames 1A, 1B, and 1C. Each of the side frames 1L and 1R is formed in a U shape whose longitudinal section is opened inward, and the above-described front frame 2 is supported over the front portions of both side frames 1L and 1R. Each cross frame is arranged in the order of the cross frame 1A, the cross frame 1B, and the cross frame 1C from the front.

  The cross frame 1A is formed in a U-shape whose longitudinal section is opened toward the rear of the vehicle body 1, and is arranged at a position directly below the front end of the cab 5, and both left and right ends are joined to the side frames 1L and 1R, respectively. Is provided. The cross frame 1B has an L-shaped vertical cross section, and is provided at both the left and right ends of the vehicle body 1 at the substantially center position in the front-rear direction and the side frames 1L and 1R. The cross frame 1C is formed in a U-shape in a plan view, and is provided by connecting both side frames 1L and 1R by fitting the left and right ends to the rear ends of the side frames 1L and 1R, respectively. Note that a suspension device having a rear wheel 9 is supported on the cross frame 1C.

  As shown in FIG. 2, the battery 10 is disposed between the side frames 1L and 1R, and the front portion thereof is supported by the cross frame 1B and the rear portion thereof is supported by the cross frame 1C. It is installed. Further, the battery 10 includes a connection plug, and the connection plug provided at one end of an electric wire 50 for connecting the battery 10 and a control device 40 described later is fitted to the connection plug, whereby the battery 10 is connected. The electric wire 50 is connected to.

  As shown in FIG. 3, a cylindrical housing 20 opened up and down is erected on the front frame 2, and the upper portion of the front wheel 8 is accommodated in the housing 20. A pillar support 21 protrudes outward from the outer surface of the housing 20, and a pillar 32 described later is fixed to the pillar support 21. Here, as shown in FIG. 5, the pillar supports 21 are provided at a total of three locations, two on the front side and one on the rear side, and the two locations on the front side are symmetrical. They are arranged at equal intervals in the circumferential direction. A through hole 2a is formed in the vicinity of the left end of the housing 20 of the front frame 2 so as to penetrate up and down. The through hole 2a can be wired through an electric wire 50 as will be described later.

  As shown in FIG. 3, the device storage chamber 3 mainly includes a top cover 30 that covers the upper side, a side cover 31 that covers the side, and a pillar 32 that supports the side cover 31. The top cover 30 is provided so as to rotate integrally with a steering handle 15 described later, and is supported by the housing 20 via a support base 14, a drive device 12, and a drive support 13 described later. On the other hand, the side cover 31 is attached to a pillar 32 supported by each pillar support 21, whereby the side cover 31 and the pillar 32 are supported by the housing 20. The side cover 31 is fixed to the pillar 32 with a screw. The side cover 31 can be removed from the pillar 32 by removing the fixing screw.

  As shown in FIG. 3, the two pillars 32 respectively supported by the two pillar supports 21 at the front side are connected by brackets 33 at the top and connected by brackets 34 at the bottom. The front pillars 32 and the rear pillars 32 are connected by brackets 35 at their upper portions. Here, a wire support 36 is erected between the bracket 33 and the bracket 34. The upper end of the wire support 36 is joined to the lower surface of the bracket 33 and the lower end is joined to the upper surface of the bracket 34. The wire support 36 is closer to the side cover 31 than the motor 11 and the control device 40 described later, that is, in the device storage chamber 3. It is arranged at the center in the left-right direction of the device storage chamber 3 at a position closer to the outside. In the first embodiment, not only the upper side of the lower bracket 34 but also the lower side of the lower bracket 34, the side is covered with the side cover 31 within the device storage chamber 3.

  As shown in FIG. 3, a motor 11 that travels and drives the front wheels 8 is disposed in the equipment storage chamber 3, and the motor 11 and the front wheels 8 are connected via a drive device 12. The drive device 12 rotatably supports the front wheel 8 and is connected to the motor 11, thereby transmitting power from the motor 11 to the front wheel 8. The drive device 12 is supported on the upper portion of the housing 20 via a drive support 13 so as to be pivotable about the longitudinal axis, and a support base 14 is fixed to the upper end portion of the drive device 12. On the support base 14, the motor 11 is vertically installed, that is, installed with the rotation axis in the vertical direction, and a control device 40 that controls the motor 11 at a position outside the motor 11 is installed. The drive device 12 is provided with a pivot axis positioned at the center in the front-rear direction and the center in the left-right direction of the device storage chamber 3, and other devices supported by the support base 14 and the support base 14 also have the pivot axis. Turn around.

  As shown in FIGS. 1 and 2, the steering handle 15 and the accelerator lever 16 are provided with their respective operation parts positioned above the device storage chamber 3, that is, above the top cover 30. Yes. As shown in FIG. 3, the steering handle 15 is mainly composed of a wheel 15A, a spoke 15B, a base 15C, a shaft 15D, and a bracket 15E that are gripped and operated by a driver. The wheel 15A is formed in an annular shape, and is provided with the central axis inclined somewhat backward. The spoke 15B has an upper end connected to the wheel 15A and a lower end connected to the base 15C. The base 15 </ b> C is formed in a disc shape, and is disposed above the motor 11 and the control device 40 and further above the upper end of the pillar 32 as shown in FIG. 3. As shown in FIG. 4B, a notch is formed in the front portion of the base 15C, and a wire support 15F is provided on the base 15C so as to cross the notch. The wire support 15F protrudes downward from the lower surface of the base 15C, and is formed so that the lower end thereof is positioned above the upper bracket 33 that connects the pillars 32 as shown in FIG. Yes. The shaft 15D has an upper end connected to the base 15C and a lower end connected to the bracket 15E. The bracket 15E is bolted onto the support base 14, whereby the steering handle 15 is fixed to the support base 14. . Here, the bracket 15E is fixed to the support base 14 outside the motor 11, so that the shaft 15D is coupled to the support base 14 at a position outside the motor 11 via the bracket 15E. A gap is secured between the motor 11 and the motor 11.

  The top cover 30 is fixed to the steering handle 15 provided in this way, and the accelerator lever 16 is fixed to the top cover 30. Thereby, the top cover 30 and the accelerator lever 16 are also turned by turning the steering handle 15 while holding the wheel 15A by hand. The accelerator lever 16 is provided with a sensor for detecting the operation amount. A signal from the sensor is input to the control device 40, and the control device 40 controls the motor 11 based on this signal.

  As shown in FIGS. 2 and 4A, the cab 5 is supported across the side frames 1L and 1R, and the left and right sides are fixed to the side frames with screws. Below the cab 5 is disposed a link mechanism linked to a brake device (not shown) for braking the rear wheel 9, and a brake pedal 17 and a brake lever 18 connected to the link mechanism. Is provided so as to protrude upward from the cab 5. Therefore, the driver's cab 5 is formed with a notch through which these are passed. Further, the cab 5 can be removed from the side frames 1L and 1R by removing the fixing screws.

  As shown in FIG. 3, a control device 40 is provided on the support base 14 on which the motor 11 is installed. The control device 40 is supported by the support base 14 via a bracket 41. The bracket 41 includes an upper horizontal portion, a vertical portion extending downward from an end portion of the upper horizontal portion, and an upper horizontal portion. It is formed in the crank shape which consists of a lower horizontal part parallel and provided in the opposite direction with respect to the vertical part. The upper horizontal portion of the bracket 41 is fixed to the upper surface of the motor 11 by bolting, the lower horizontal portion is fixed to the upper surface of the support base 14 by bolting, and the control device 40 is fixed to the vertical portion by bolting. A wire support 42 is provided from the upper horizontal portion to the vertical portion of the bracket 41, and the electric wire 50 guided along the wire support 42 is connected to a terminal provided in the control device 40. The control device 40 is also connected to the sensor of the accelerator lever 16 by a signal line.

  When the accelerator lever 16 is operated to control the power running of the motor 11, the control device 40 receives power supplied from the battery 10 via the electric wire 50 and applies a voltage corresponding to the amount of operation of the accelerator lever 16 to the motor 11. To do. Thus, the power generated by the motor 11 is transmitted to the front wheels 8 by the drive device 13, and the front wheels 8 are driven to rotate, so that the transport vehicle travels. When the motor 11 is regeneratively controlled during traveling, the electric power regenerated by the motor 11 is received, the electric power is supplied to the battery 10 through the electric wire 50, and the battery 10 is charged.

  4A and 4B, the electric wire 50 connected to the battery 10 is guided from the right side of the battery 10 to the side frame 1L through the front of the cross frame 1B, and is guided forward along the side frame 1L. It is burned. When reaching the left side of the housing 20 in this way, the electric wire 50 is raised above the upper surface of the front frame 2 through the through hole 2a, and further, the left side of the housing 20 is extended along the outer periphery to the front portion of the device storage chamber 3. Led to. The electric wire 50 extends along the housing 20 below the lower bracket 34, passes through the bracket 34 and is directed to the wire support 36 at a position between the front pillars 32, and is guided into the device storage chamber 3. It is burned. Then, it is raised toward the upper bracket 33 along the wire support 36. Although not shown, in the section from the battery 10 to the upper part of the wire support 36, the electric wire 50 is appropriately fixed to the side frame 1L, the housing 20, and the wire support 36 by a fixing band or a clamp member. Has been.

  The electric wire 50 raised up from the front of the device storage chamber 3 above the motor 11 and the control device 40 and above the upper bracket 33 passes through the center of the device storage chamber 3 and is wired. Guided toward support 42. Here, the electric wire 50 passes through the center of the device storage chamber 3 between the motor 11 and the control device 40 and the base 15C, and the front wheel 8 is directed straight in the straight direction as shown by a solid line in FIG. Then, the wire is guided from the center of the device storage chamber 3 toward the wire support 42 located at the rear, and is hung down along the wire support 42 and guided to the control device 40, and is connected to the control device 40. The wire support 42 is disposed between the motor 11 and the shaft 15D, and the electric wire 50 is suspended between the two and fixed to the wire support 42 with a fixing band (not shown). Further, a terminal provided in the control device 40 and a terminal provided in the motor 11 are connected by an electric wire (not shown), whereby the battery 10 and the motor 11 are connected via the control device 40.

  Of the electric wires 50 wired as described above, the section from the battery 10 to the upper surface of the front frame 2 corresponds to the first electric wire guiding portion in the present invention, and from there to the front of the equipment storage chamber 3 The section from the first part to the inside of the equipment storage chamber 3 corresponds to the introduction part, and the section from there to the upper part of the motor 11 and the control device 40 corresponds to the upright part, and further from there to the control device 40. The section up to is equivalent to the crossover. On the other hand, the electric wire connected between the control device 40 and the motor 11 corresponds to the second electric wire in the present invention.

  When the steering handle 15 is turned clockwise in a plan view after the electric wire 50 is connected, the drive device 12, the support base 14, the motor 11 supported by the support base 14, and the control device 40 are connected to the device storage chamber 3. Turning around the center clockwise in plan view and moving to the left side, the electric wire 50 swings to the left about the center of the device storage chamber 3 as shown by the two-dot chain line in FIG. To do. Conversely, when the steering handle 15 is turned counterclockwise in plan view, the drive device 12 or the like turns counterclockwise in plan view around the center of the device storage chamber 3 and moves to the right side. It swings to the right about the center of the device storage chamber 3. Here, the central part of the swing of the electric wire 50 is not fixed to the wire support 42 and is not fixed to other support members.

  According to the first embodiment, even if the steering handle 15 is operated, an excessive force is not applied to the electric wire 50, and the electric wire 50 may be rubbed or caught on the motor 11 or the control device 40. Therefore, the steering can be performed smoothly without damaging the electric wire 50. Further, since the electric wire 50 is protected by the side frame 1L and the front frame 2 in the vehicle body 1 and is protected by the top cover 30 and the side cover 31 in the device storage chamber 3, the inside of the device storage chamber 3 as well as others Even in this location, the electric wire 50 can be prevented from drooping or damaged, and the durability of the transport vehicle can be improved. Furthermore, since the motor 11 and the control device 40 are installed on the same support 14, they can be easily connected with an electric wire, and the electric wire can be rotated integrally with the motor 11 and the control device 40. Therefore, when the steering handle 15 is operated, no twisting or bending force acts on the electric wire, and the steering is not hindered.

  Further, according to the first embodiment, it is possible to guide the battery 50 along the side frame 1L forward from the position where the battery 10 is mounted along the side frame 1L by simply fixing the electric wire 50 to the side frame 1L. By simply fixing the electric wire 50 along the outer periphery of the housing 20 to the housing 20 as appropriate, the electric wire 50 can be guided along the housing 20 to the front portion of the device storage chamber 3, so that the operator can easily perform the work. Can do. Furthermore, the electric wire 50 along the wire support 36 can be surely started up along the wire support 36 simply by fixing the electric wire 50 along the wire support 36 to the wire support 36. Since it can be reliably guided to the control device 40 along the wire support 42 by simply fixing it appropriately, the operator can easily perform the work. Furthermore, since the side cover 31 can be removed from the pillar 32 and the steering handle 15 can be removed from the support base 14, wiring can be performed with these removed, which is very workable. good. In addition, in the electric wire 50, the side frame 1L corresponding to this portion is exposed by removing the cab 5 for the portion behind the device storage chamber 3 and in front of the backrest 6, An operator can easily perform wiring.

  In the first embodiment, the front frame 2 is provided with the through hole 2a, and the electric wire 50 is passed through the through hole 2a. However, the position of the through hole 2a is not limited to the position near the left end of the housing 20, but the housing It may be provided at a position closer to the front than the position near the left end of 20, or may be provided at a position closer to the rear. Also, the present invention can be carried out with the left and right sides switched from the above configuration. For example, the electric wire 50 can be guided forward from the battery 10 along the side frame 1 </ b> R, the through hole 2 a is provided in the front frame 2 on the right side of the housing 20, and the electric wire 50 is connected along the right side of the housing 20. It can lead to the front part of the equipment storage chamber 3.

  In the first embodiment described above, the electric wire 50 is guided from the side of the housing 20 into the device storage chamber 3, but instead, the electric wire 50 is guided by the cover 22 as shown in FIG. The electric wire 50 can be guided into the device storage chamber 3 from the rear of the housing 20, that is, from a position behind the front frame 2. In the first embodiment, in the section between the portion fixed to the wire support 36 and the portion fixed to the wire support 42, the electric wire 50 is brought into contact with the wire support 15E provided on the base 15C. The motor 11 and the control device 40 are positioned between the base 15C above the motor 11 and the control device 40. Thus, the means for positioning the electric wire 50 is not limited to that of the first embodiment, and at least a part of the electric wire 50 is fixed to a wire support arranged between the motor 11 and the control device 40 and the base 15C thereabove. Thereby, the electric wire 50 of the said area can be located between the motor 11 and the control apparatus 40, and the base 15C of the upper direction. Hereinafter, another embodiment of the present invention thus configured (hereinafter referred to as Embodiment 2) will be described. In addition, about the structure which is common in Example 1, and its effect | action and effect, description is abbreviate | omitted or simplified.

  As shown in FIG. 7, a cylindrical housing 20 opened up and down is erected on the front frame 2 provided at the front portion of the vehicle body 1. As shown in FIG. 9, pillar supports 21 protrude from the outer surface of the housing 20 at a total of three locations, two on the front side and one on the rear side. Further, a cover 22 opened vertically is provided on the outer surface of the housing 20 below the pillar support 21 on the rear side, and protrudes rearward, that is, toward the cab 5 side. The electric wire 50 can be passed therethrough.

  As in the first embodiment, the device storage chamber 3 mainly includes a top cover 30 that covers the upper side, a side cover 31 that covers the side, and a pillar 32 that supports the side cover 31. The top cover 30 is provided so as to pivot integrally with the steering handle 15, and the side cover 31 is detachably attached to the pillars 32 supported by the pillar supports 21. As shown in FIG. 7, the two pillars 32 respectively supported by the two pillar supports 21 at the front side are connected by a bracket 33 at the upper part and connected by a bracket 34 at the lower part. The front pillars 32 and the rear pillars 32 are connected by brackets 35 at their upper portions. Here, a wire support 36 is erected between the bracket 33 and the bracket 34, and a wire support 37 is extended to the bracket 33 toward the center of the device storage chamber 3. In the second embodiment as well, as in the first embodiment, the side covered with the side cover 31 is within the device storage chamber 3 even below the lower bracket 34.

  The wire support 36 has an upper end joined to the lower surface of the bracket 33 and a lower end joined to the upper surface of the bracket 34, and is closer to the side cover 31 than the motor 11 and the control device 40, that is, closer to the outside of the device storage chamber 3. At the center of the device storage chamber 3 in the left-right direction. On the other hand, the wire support 37 is disposed above the bracket 33 as shown in FIGS. 7 and 8, and is disposed at the center in the left-right direction of the device storage chamber 3 as shown in FIG. ing. Further, the wire support 37 includes a U-shaped guide member opened upward at substantially the center in the front-rear direction, and has a U-shape opened downward at the distal end side, that is, the end of the center side of the device storage chamber 3. A guide member is provided. Then, as shown in FIGS. 7 to 9, the electric wire 50 is arranged through both the guide members.

  As shown in FIG. 7, a drive device 12 is supported in the device storage chamber 3 on the upper portion of the housing 20 via a drive support 13 so as to be pivotable about the vertical axis. Is provided at the center in the front-rear direction and in the center in the left-right direction. On the support base 14 fixed to the upper end of the drive device 12, the motor 11 is installed vertically, and a control device 40 that controls the motor 11 at a position outside the motor 11 is installed.

  Further, as shown in FIG. 6, the steering handle 15 and the accelerator lever 16 are provided with their respective operation portions positioned above the device storage chamber 3, that is, above the top cover 30. As shown in FIG. 7, the steering handle 15 is mainly composed of a wheel 15A, a spoke 15B, a base 15C, a shaft 15D, and a bracket 15E that are gripped and operated by a driver. The wheel 15A is formed in an annular shape, and the spoke 15B has an upper end connected to the wheel 15A and a lower end connected to a base 15C formed in a disc shape. The shaft 15D has an upper end connected to the base 15C and a lower end connected to the bracket 15E, and the bracket 15E is bolted onto the support 14 so that the shaft 15D is supported by the support 14 via the bracket 15E. The steering handle 15 is fixed to the support base 14. Here, as shown in FIG. 7, as in the first embodiment, the base 15C is disposed above the motor 11 and the control device 40 and further above the upper end of the pillar 32, and the shaft 15D is It is connected to the support base 14 at a position outside the motor 11. A top cover 30 is fixed to the steering handle 15.

  As shown in FIG. 8, the cab 5 is detachably supported across the side frames 1L and 1R, and a front end of the cab 5 is formed with a notch 5a through which the electric wire 50 passes at the center in the left-right direction. is there. In the cross frame 1A, a notch 1a is formed at the center in the left-right direction, and the electric wire 50 is provided through both notches 1a and 5a that overlap vertically. In the first embodiment, the through hole 2a is formed in the front frame 2. However, in the second embodiment, the through hole 2a is not formed.

  As shown in FIG. 7, a control device 40 is supported on the support base 14 via a bracket 41. The bracket 41 is formed in a crank shape including an upper horizontal portion, a vertical portion, and a lower horizontal portion. Has been. The upper horizontal portion of the bracket 41 is fixed to the upper surface of the motor 11 by bolting, the lower horizontal portion is fixed to the upper surface of the support base 14 by bolting, and the control device 40 is fixed to the vertical portion by bolting. A wire support 42 is provided from the upper horizontal portion to the vertical portion of the bracket 41, and the electric wire 50 guided along the wire support 42 is connected to a terminal provided in the control device 40.

  Now, as shown in FIG. 8, the electric wire 50 connected to the battery 10 is guided from the right side of the battery 10 to the side frame 1L through the front of the cross frame 1B, and is guided forward along the side frame 1L. When reaching the joint between the side frame 1L and the cross frame 1A in this way, the electric wire 50 is guided to the center in the left-right direction of the vehicle body 1 along the cross frame 1A, and is operated through the notch 1a and the notch 5a. It is raised above the upper surface of the table 5. Here, the electric wire 50 is raised upward through the cover 22, and further, the right side of the housing 20 is guided along the outer periphery to the front portion of the device storage chamber 3. The electric wire 50 extends along the housing 20 below the lower bracket 34, passes through the bracket 34 and is directed to the wire support 36 at a position between the front pillars 32, and is guided into the device storage chamber 3. It is burned. Then, it is raised toward the upper bracket 33 along the wire support 36. The electric wire 50 raised up above the motor 11 and the control device 40 is guided to the center of the device storage chamber 3 along the wire support 37 provided on the bracket 33. Although not shown, the electric wire 50 is fixed to the side frame 1L, the cross frame 1A, the housing 20, the wire support 36, and the wire support 37 in the section from the battery 10 to the center of the device storage chamber 3. It is suitably fixed by a band or a clamp member.

  As shown by a solid line in FIG. 9, the electric wire 50 is guided from the center of the device storage chamber 3 toward the wire support 42 located rearward with the front wheel 8 directed in the straight direction, and then to the wire support 42. It is hung down along the direction and guided to the control device 40 and connected to the control device 40. Here, the electric wire 50 is guided toward the wire support 42 via the center of the device storage chamber 3 between the motor 11 and the control device 40 and the base 15C. The wire support 42 is disposed between the motor 11 and the shaft 15D, and the electric wire 50 is suspended between the two and fixed to the wire support 42 with a fixing band (not shown). Further, a terminal provided in the control device 40 and a terminal provided in the motor 11 are connected by an electric wire (not shown), whereby the battery 10 and the motor 11 are connected via the control device 40.

  Of the electric wires 50 wired as described above, the section from the battery 10 to the upper surface of the cab 5 corresponds to the guiding portion of the first electric wire in the present invention. The section from the first section to the equipment storage chamber 3 corresponds to the introduction section, and the section from there to the upper portion of the motor 11 and the control device 40 corresponds to the rising portion, and further from there to the control device. A section up to 40 corresponds to a crossover. On the other hand, the electric wire connected between the control device 40 and the motor 11 corresponds to the second electric wire in the present invention.

  When the steering handle 15 is turned clockwise in a plan view after the electric wire 50 is connected, the drive device 12, the support base 14, the motor 11 supported by the support base 14, and the control device 40 are connected to the device storage chamber 3. Turning around the center clockwise in plan view and moving to the left side, the electric wire 50 swings to the left about the center of the device storage chamber 3 as shown by the two-dot chain line in FIG. To do. Conversely, when the steering handle 15 is turned counterclockwise in plan view, the drive device 12 or the like turns counterclockwise in plan view around the center of the device storage chamber 3 and moves to the right side. It swings to the right about the center of the device storage chamber 3.

  According to the second embodiment, even if the steering handle 15 is operated, an excessive force does not act on the electric wire 50, and the electric wire 50 may be rubbed or caught on the motor 11 or the control device 40. Therefore, the steering can be performed smoothly without damaging the electric wire 50. Further, since the electric wire 50 is protected by the side frame 1L and the cross frame 1A in the vehicle body 1 and is protected by the top cover 30 and the side cover 31 in the device storage chamber 3, the inside of the device storage chamber 3 as well as others Also in this part, damage of the electric wire 50 can be prevented and durability of the transport vehicle can be improved. Furthermore, since the section from the wire 50 through the notch 5a of the cab 5 to the inside of the equipment storage chamber 3 can be protected by the cover 22, the driver's toes on the cab 5 can be protected. The electric wire 50 is not damaged by contact or the like. In addition, since the motor 11 and the control device 40 are installed on the same support base 14, they can be easily connected with an electric wire, and the electric wire rotates integrally with the motor 11 and the control device 40. Therefore, when the steering handle 15 is operated, a twisting or bending force does not act on the electric wire, and the steering is not hindered.

  Further, according to the second embodiment, the electric wire 50 along the side frame 1L is fixed to the side frame 1L as appropriate, and can be reliably guided forward from the position where the battery 10 is mounted along the side frame 1L. By simply fixing the electric wire 50 along the cross frame 1A to the cross frame 1A as appropriate, the wire 50 can be reliably guided to the center of the vehicle body 1 along the cross frame 1A. By simply fixing the electric wire 50 to the housing 20 as appropriate, the electric wire 50 can be reliably guided to the front portion of the device storage chamber 3 along the housing 20, so that the operator can easily work. Furthermore, the electric wire 50 along the wire support 36 is fixed to the wire support 36 as appropriate, so that the electric wire 50 along the wire support 37 can be securely turned up along the wire support 36. The wire support 37 can be reliably guided to the center of the device storage chamber 3 by being fixed as appropriate. The electric wire 50 along the wire support 42 is fixed to the wire support 42 as appropriate. Therefore, the operator can easily perform the work. In addition, the portion of the electric wire 50 that is located behind the device storage chamber 3 and in front of the backrest 6, that is, the portion located below the cab 5, is removed by removing the cab 5. Since the corresponding side frame 1L and cross frame 1A are exposed, the operator can easily perform wiring.

  In the second embodiment, the notches 1a and 5a are provided in the center of the cross frame 1A and the cab 5 in the left-right direction, and the electric wires 50 are passed through these notches. It is not limited to the configuration. For example, the positions of the notch 1a of the cross frame 1A and the notch 5a of the cab 5 may be provided at a position on the right side of the center in the left-right direction or at a position on the left side. Also, the present invention can be carried out with the left and right sides switched from the above configuration. For example, the electric wire 50 can be guided forward along the side frame 1 </ b> R from the battery 10, and the electric wire 50 can be guided to the front portion of the device storage chamber 3 along the left side of the housing 20. .

It is a side view concerning Example 1 of the present invention. It is a top view concerning Example 1 of the present invention. It is a side view concerning Example 1 of the present invention. It is the perspective view seen from back concerning Example 1 of the present invention. It is the perspective view seen from the front which concerns on Example 1 of this invention. It is a top view concerning Example 1 of the present invention. It is a side view which concerns on Example 2 of this invention. It is a side view which concerns on Example 2 of this invention. It is the perspective view seen from back concerning Example 2 of the present invention. It is a top view concerning Example 2 of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car body 1A Cross frame 1L Side frame 1R Side frame 1a Notch 2 Front frame 2a Through-hole 20 Housing 21 Pillar support 22 Cover 3 Equipment storage room 31 Side cover 32 Pillar 36 Wire support 37 Wire support 4 Car bed 5 Driver's cab 5a Notch 8 Front wheel 10 Battery 11 Motor 12 Drive device 14 Support base 15 Steering handle 15C Base 15F Wire support 40 Control device 41 Bracket 42 Wire support 50 Electric wire

Claims (9)

An equipment storage room is provided at the front of the vehicle body, and a cargo bed is provided at the rear. A front wheel is provided below the equipment storage room, and a handle for steering the front wheels is provided in the equipment storage room. In the car,
A battery mounted on the vehicle body below the loading platform, a turntable provided with respect to the vehicle body in the equipment storage chamber, and connected to the front wheel and the handle, respectively, and installed on the support table and A motor for driving a front wheel, a control device installed on the support base and controlling the motor, a first electric wire connecting the battery and the control device, and connecting the motor and the control device And a second electric wire
The first electric wire is connected to the battery and guided to the front along the vehicle body, and is continuous to the guiding part, and is led from the lower side of the device storage chamber into the device storage chamber. An introduction portion that is continuous with the introduction portion, and rises outward from the motor and the control device in the equipment storage chamber, and is continuous with the rise portion and above the motor and the control device. A transport vehicle comprising: a crossing portion that is guided toward the center of the device storage chamber and then is hung down and connected to the control device. The support base is provided so as to be pivotable about a longitudinal axis at the approximate center of the equipment storage chamber, the motor is installed at the center of the support base, and the control device is more than the motor of the support base. Installed in the outer position,
The crossing portion is connected to the control device by being hung down after being led outward from the motor via the approximate center of the device storage chamber above the motor and the control device. The transport vehicle according to claim 1. The handle is disposed above the device storage chamber and is connected to the wheel operated by the driver, the base disposed above the motor and the control device in the device storage chamber, and the base and the wheel. And a shaft that extends downward from the base and is connected to and supported by the support base,
The shaft is connected to an outer position of the support base than the motor,
The upright portion is arranged to face the shaft with the motor in between, and the connecting portion continuing from the shaft is located in the center of the equipment storage chamber between the base, the motor, and the control device. The transport vehicle according to claim 2, wherein the transport vehicle is hung between the motor and the shaft and connected to the control device after being guided toward the vehicle. The equipment storage chamber includes a pillar that is supported by the vehicle body and is erected in a vertical direction, and a side cover that is detachably attached to the pillar and covers the motor and the control device from the side.
The transport vehicle according to any one of claims 1 to 3, wherein the upright portion is raised and fixed along the inner side surface of the side cover.   A support member extending toward the center of the device storage chamber is supported by the pillar, and the support member has a portion on the upright side with respect to the center portion of the device storage chamber among the transition portions. The transport vehicle according to claim 4, wherein the vehicle is fixed. The vehicle body is provided with a pair of left and right side frames disposed in the front-rear direction and spaced apart in the left-right direction, and a front part that supports the device storage chamber by connecting the front portions of the side frames. With a frame,
The loading platform is supported over the rear portions of the side frames, the battery is mounted on the vehicle body between the side frames, and the guide portion is fixed along the inside of the side frames, The transport vehicle according to any one of claims 1 to 5, wherein the transport vehicle is guided forward. The vehicle body includes a cab that is detachably provided across the side frames between the front frame and the loading platform, and a boundary portion between the front end of the cab and the rear end of the front frame. And a cross frame provided by connecting the frames,
The guide portion is guided to the front of the cross frame along the side frame, and then guided upward from the upper surface of the front frame through a through hole provided in the front frame. The transport vehicle according to claim 6, wherein the introduction portion that is continuous with the device is led into the device storage chamber from below the side of the device storage chamber. The vehicle body includes a cab that is detachably provided across the side frames between the front frame and the loading platform, and a boundary portion between the front end of the cab and the rear end of the front frame. And a cross frame provided by connecting the frames,
The guide portion is guided along the side frame to the connecting portion between the side frame and the cross frame, and then guided along the cross frame toward the center of the vehicle body. Through the notch provided at the front end of the platform, it is guided upward from the upper surface of the driver's cab, and the introduction portion continuous therewith is led into the device storage chamber from below the rear of the device storage chamber. The transport vehicle according to claim 6.   A cylindrical housing that is opened up and down is erected at the center in the left-right direction of the front frame, and the front wheel is rotatably supported on the housing, and power from the motor is transmitted to the front wheel. Is provided so as to be able to turn around a vertical axis, and the support base is fixedly supported by the power transmission device so as to be turnable with respect to the vehicle body. Further, the introduction portion is located outside the housing. The transport vehicle according to any one of claims 6 to 8, wherein the transport vehicle is guided into the equipment storage chamber.

Images