JP2002120995A - Charger for battery-powered forklift - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a charger for a battery-powered forklift that improves the maintainability of the charger including a charging controller on a battery- powered forklift, and prevents a malfunction of the charger and improves appearance about a charger-mounted part by preventing intrusion of waterdrops and dust in the charger via a receptacle for external power source connection and a charging panel part. SOLUTION: The charger for a battery-powered forklift comprises a charging controller having a connecting receptacle for an AC power source and a charging panel part and controlling charging of a battery. The charging controller is contained in an underfloor space formed under a driver's seat floor, and the connecting receptacle and charging panel part of the charging controller are oriented sideway in the underfloor space. An openable cover designed to open and close between the connecting receptacle and charging panel part and the exterior is arranged in a floor side plate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging device for a battery-powered forklift that carries out cargo handling and traveling by using a battery as a power source, and more particularly to a mounting structure of a charging controller for controlling charging.

[0002]

2. Description of the Related Art A battery-powered forklift that carries out cargo handling and traveling by using a battery as a power source is equipped with a charging device for charging from an AC power source such as a factory power source. Among such charging devices, the inverter coil and the rectifier do not have any restrictions on the mounting, so that a wide range of mounting locations can be set.However, the charging controller for charging control is provided with an outlet for connecting to an AC power supply for charging. Since the charging panel unit including the charging switch is provided, it is necessary to arrange the charging panel unit in a place where the operator can easily access (access and handle) from the outside of the vehicle. In addition, since such a battery-type forklift is relatively frequently operated in a place where water is exposed to water, it is possible to prevent water from being applied to an outlet or a charging panel of the charge controller and to prevent dust from entering. I need to do that.

FIG. 3 is a side external view of such a battery-powered forklift, and FIG. 4 shows an example of the prior art (part Z in FIG. 3) of the charge controller mounting structure in the battery-powered forklift. In FIG. 3, 01 is a vehicle body, 1
Is a head guard, 2 is a lifting mast for raising and lowering luggage, 02 is a fork, 3 is a balance weight, 4 is a battery, 5 is a driver's seat, 6 is a steering handle, and 7 is a driver arranged in front of the driver's seat 5. A seat floor, 14 is a floor side plate that covers a lower space of the driver's seat floor 7 from both sides, 8 is a step for ascending and descending to the driver's seat 5, 9 is a side cover that covers a side portion of the vehicle body 01, and 13 is a side cover. Frame at the front of the car body,
013 is a wheel. Reference numeral 10 denotes a service brake knob, and reference numeral 11 denotes a cover member provided to cover a lower portion of the service brake knob 10.

In FIG. 4, conventionally, the charge controller 12 is installed in a space covered by a cover member 11 provided so as to cover a lower portion of the service brake knob 10, and performs charging by connecting to an AC power supply. And a charging panel section 16 including a charging switch are exposed from the cover member 11 toward the driver's seat floor 7 to facilitate connection to an external AC power supply and external access. Reference numeral 30 denotes a tilt cylinder.

[0005]

Conventionally, in such a battery type forklift, as shown in FIG. 4, a charge controller 12 is provided in a space covered by a cover member 11 provided to cover a lower portion of a service brake knob 10. The outlet 15 and the charging panel section 16 are directed from the cover member 11 to the driver's seat floor 7 side in order to facilitate charging by being connected to an AC power supply and facilitating external access. It is provided exposed.

For this reason, in the prior art, when checking and maintaining the charge controller 12, the charge controller 12 cannot be accessed unless the cover member 11 is removed.
Since the surrounding piping becomes complicated, there is a problem in maintainability. Further, as described above, the outlet 15 and the charging panel section 16 are provided so as to be exposed from the cover member 11 toward the driver's seat floor 7 side. , The charging device is likely to malfunction. In addition, since the outlet 15 and the charging panel 16 are exposed to the outside, the appearance is not good. And the like.

The present invention has been made in view of the problems of the prior art,
In a battery-powered forklift, the maintainability of the charging device including the charging controller is improved, and the ingress of water droplets and dust into the charging device through an outlet for connecting an external power supply and a charging panel portion is avoided, so that the charging device can be used. An object of the present invention is to provide a charging device for a battery-type forklift, which prevents the occurrence of malfunction and improves the appearance around the charging device mounting portion.

[0008]

According to the present invention, there is provided a battery type forklift for carrying out loading and unloading work using a battery as a power source, which is connected to an AC power supply. A charging device for a battery-operated forklift having a charging controller having a charging panel unit including a power outlet and a charging switch for controlling charging of the battery, comprising: A charging device for a battery-powered forklift, wherein the charging device is housed in a space below the floor formed below the floor.

According to a second aspect of the present invention, in addition to the first aspect, a connection outlet of the charge controller and a charge panel portion are arranged toward a side of the space below the floor,
A floor side plate that covers a side portion of the space below the floor is provided with an opening / closing cover that opens and closes between the connection outlet and the charging panel unit and the outside. According to a second aspect of the present invention, preferably, the connection outlet, the charging panel unit, and the opening / closing cover are provided on an elevation step side arranged on a side of the driver's seat floor.

According to the invention, the charge controller is housed in the space below the driver's seat floor located below the driver's seat and formed below the driver's seat floor.
During inspection and maintenance of the charge controller, the driver can easily access the charge controller by simply removing the driver's floor, so that the charge controller can be easily inspected, removed, and installed. The maintenance is also improved. In addition, the charging controller is housed in the extra space below the driver's seat floor, and the outlet for connecting to the external power supply and the charging panel are installed using the floor side plate. Can be diverted simply by adding Also,
The wiring from the charge controller side to the battery can pass through the inside of the vehicle body and is not exposed to the outside, and the wiring at the time of charging can pass through the side of the floor side plate, and the appearance is improved.

Further, as described above, since the charge controller is housed in the space below the floor formed below the driver's seat floor, compared with the prior art as shown in FIG.
The wiring between the charge controller and the battery is reduced,
Wiring is simplified.

According to the second aspect of the present invention, the floor side plate that covers the side of the space below the floor is provided with the opening / closing cover that opens and closes between the outlet and the charging panel unit and the outside. During normal operation other than when the outlet and charging panel are not exposed to the outside,
This prevents the charging device from malfunctioning due to contact of the outlet and the charging panel with water droplets and dust, and also improves the appearance.

According to a fourth aspect of the present invention, there is provided a battery-type forklift for performing cargo handling and running by using a battery as a power source, wherein the battery has a charging panel portion including an outlet for connection to an AC power supply and a charging switch. In a charging device for a battery-powered forklift equipped with a charge controller that controls charging of the vehicle, the charge controller is provided in a space below a lifting step formed below a lifting step disposed on a front side portion of a driver's seat. It is characterized by being stored in. According to a fifth aspect of the present invention, in addition to the fourth aspect, the connection outlet and the charging panel unit of the charge controller are arranged toward the lifting step, and the connection outlet and the charging panel are provided in the lifting step. An opening / closing cover that opens and closes between the unit and the outside is provided.

According to this invention, the charge controller is housed in the space below the elevating step formed below the elevating step, so that the elevating step is removed during inspection and maintenance of the charge controller. Access to the charge controller can be facilitated only by the above operation, so that the charge controller can be easily inspected, taken out, and incorporated, and the maintainability is improved as in the first to third aspects of the present invention. Further, the charging controller is housed in a surplus space below the elevating step, and an outlet for connection to an external power supply and a charging panel unit are installed using the elevating step. As with, existing vehicles can be diverted with only minor modifications.

Further, according to the fifth aspect of the present invention, since the opening / closing cover for opening and closing the outlet and the charging panel unit and the outside is provided in the lifting / lowering step, the outlet and the charging during normal operation other than charging are provided. The panel portion is not exposed to the outside, and similarly to the invention of claim 2, the malfunction of the charging device caused by the outlet and the charging panel portion coming into contact with water droplets and dust is prevented, and the appearance is improved. Is also good.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to an embodiment shown in the drawings. However, unless otherwise specified, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention thereto, but are merely illustrative examples. It's just

FIG. 1 is a perspective view of a main part showing a mounting structure of a charge controller of a battery type forklift according to a first embodiment of the present invention (a view taken in the direction of an arrow in FIG. 3), and FIG. 2 shows a second embodiment. FIG. FIG. 3 is a side view of a battery-powered forklift to which the present invention is applied, in which the prior art is partially shown.

In FIG. 3 showing a battery type forklift to which the present invention is applied, reference numeral 01 denotes a vehicle body, 1 denotes a head guard, 2 denotes a lifting mast for lifting and lowering a load, 02 denotes a fork,
Is a balance weight, 4 is a battery, 5 is a driver's seat, 6 is a steering handle, 7 is a driver's seat floor disposed in front of the driver's seat 5, and 14 is a space below the driver's seat floor 7 from both sides. The floor side plate to be covered, 8 is the driver's seat 5
9 is a side cover that covers the side of the vehicle body 01, 13 is a frame at the front of the vehicle body, and 013 is wheels. Reference numeral 10 denotes a service brake knob. 1
1 is a cover member provided so as to cover a lower portion of the service brake knob 10.

The present invention relates to an improvement in the mounting structure of the charge controller 12 in the battery type forklift shown in FIG. FIG. 1 showing the first embodiment.
In the figure, 7 is a driver's seat floor horizontally arranged in front of the driver's seat 5 shown in FIG. 3, and 14 is a vertical floor which covers a floor lower space 07 formed below the driver's seat floor 7 from both sides. A floor side plate 8 is a step for raising and lowering to the driver's seat 5 horizontally provided on the side of the floor side plate 14, and 9 is a vertical part provided on a lower outside of the step 8 for lifting and lowering and a side portion of the vehicle body 01. It is a side cover that covers. Reference numeral 13 denotes a front frame of the vehicle body, and reference numeral 30 denotes a tilt cylinder.

Reference numeral 12 denotes a charge controller, on the side of which is provided an outlet 15 for charging by connecting to an AC power supply, and a charge panel section 16 including a charge switch. Then, the charge controller 12 controls the floor lower space 0 formed below the driver's seat floor 7.
7 and is fixed to the floor side plate 14 by four (or more) bolts 18 for fixing, and is stably held in the space 07 below the floor. Further, a portion of the floor side plate 14 facing the outlet 15 and the charging panel 16 is an open opening 014, and a hinge-type opening / closing cover 17 for opening and closing the opening 014 is provided. . The openings 014 of the floor side plates 14 on both sides facing the outlet 15 and the charging panel section 16 of the charge controller 12 may be provided in one of the left and right floor side plates 14.

In the charging device for a battery-type forklift having the above structure, when charging the battery 4, the opening / closing cover 1 of the floor side plate 14 is used.
7, an AC power source such as a factory power source is connected to the outlet 15, and the charging controller 16 is operated by operating the charging panel unit 16.
2 and the battery 4 is charged by the AC power supply. After the charging is completed, the AC power supply is disconnected, and then the opening / closing cover 17 is closed to block the outlet 15 and the charging panel 16 from being exposed to the outside. Further, when the charge controller 12 is inspected and maintained, when the driver's seat floor 7 is removed, the upper side of the charge controller 12 is greatly opened, so that the charge controller 12 can be easily taken out and assembled. .

According to this embodiment, the charging controller 12 is housed in the lower floor space 07 formed below the driver's seat floor 7 disposed in the lower front part of the driver's seat 5, whereby the charging is performed. During inspection and maintenance of the controller 12, access to the charge controller 12 can be easily performed only by removing the driver's seat floor 7, and inspection, removal, and installation of the charge controller 12 can be easily performed. It is easier to maintain than things. The charge controller 12 is housed in an extra space below the driver's seat floor 7, and the floor side plate 1
Since the connection outlet 15 for connecting to the external power supply and the charging panel section 16 are installed using the power supply 4, the existing vehicle can be diverted with only a slight modification. In addition, the wiring from the charge controller 12 to the battery 4 can pass through the inside of the vehicle body, does not expose to the outside, and the wiring at the time of charging can pass through the side of the floor side plate 14, so that Is improved.

As described above, the charge controller 1
2 is housed in the floor lower space 07 formed below the driver's seat floor 7, so that the wiring between the charge controller 12 and the battery 4 is shortened as compared with the prior art shown in FIG. Wiring is simplified. Further, since the outlet 15 and the opening / closing cover 17 for opening and closing between the charging panel 16 and the outside are provided on the floor side plate 14 covering the side of the floor lower space 07, the outlet 15 is provided during normal operation other than charging. In addition, the charging panel section 16 is not exposed to the outside, so that the occurrence of a malfunction of the charging device due to the outlet 15 and the charging panel section 16 coming into contact with water droplets or dust is prevented, and the appearance is improved.

In the second embodiment shown in FIG. 2, the charging controller 12 is connected to the lower side of the elevating step 8 formed below the elevating step 8 disposed on the front side of the driver's seat 5. It is stored in the space 08. Reference numeral 20 denotes a fixing bolt for fixing the charge controller 12 to the lifting step 8. In the second embodiment, the outlet 15 for connecting the AC power supply and the charging panel section 16 of the charging controller 12 are connected to the step 8 for lifting and lowering.
The lifting step 8 is provided with an opening / closing cover 19 similar to that of the first embodiment, and the opening / closing cover 19 opens and closes the outlet 15 and the charging panel 16 between the outside and the outside. It is configured to be.

According to the second embodiment, the charge controller 12 is housed in the space 08 below the lifting step 8 formed below the lifting step 8, so that the charge controller 12 can be inspected and maintained. At times, it is possible to easily access the charge controller 12 simply by removing the step 8 for raising and lowering, and to easily inspect, take out, and assemble the charge controller 12, and maintain the same as in the first embodiment. Is improved. In addition, the charge controller 12 is provided in a surplus space below the lifting step 8.
And the outlet 15 for connection to an external power supply and the charging panel section 16 are installed using the step 8 for raising and lowering, so that the existing vehicle is slightly modified as in the first embodiment. Can be diverted only.

Further, since the opening / closing cover 17 for opening / closing the outlet 15 and the charging panel 16 between the outside and the outside is provided in the elevating step 8, the outlet 15 and the charging panel 16 are connected to the outside during normal operation other than charging. In the same manner as in the first embodiment, the occurrence of malfunction of the charging device due to the outlet 15 and the charging panel portion 16 coming into contact with water droplets and dust is prevented, and the appearance is good. Become.

[0027]

As described above, according to the first to third aspects of the present invention, the charge controller is stored in the space below the driver's seat floor, so that the charge controller can be inspected.
At the time of maintenance, the driver can easily access the charge controller by simply removing the driver's floor, so that the charge controller can be easily inspected, taken out, and assembled, thereby improving maintainability over the conventional one. . In addition, the charging controller is housed in the extra space below the driver's seat floor, and the outlet for connecting to the external power supply and the charging panel are installed using the floor side plate. Can be diverted simply by adding In addition, the wiring from the charge controller side to the battery can pass through the inside of the vehicle body, does not expose to the outside, and the wiring at the time of charging can pass through the side of the floor side plate, thereby improving the appearance. .

Further, as described above, since the charge controller is housed in the space below the driver's seat floor, the wiring between the charge controller and the battery is shortened as compared with the prior art as shown in FIG. , Wiring is simplified.

In particular, according to the present invention, the floor side plate covering the side of the space below the floor is provided with an opening / closing cover for opening / closing between the outlet and the charging panel and the outside. During normal operation other than when the outlet and charging panel are not exposed to the outside,
This prevents the charging device from malfunctioning due to contact of the outlet and the charging panel with water droplets and dust, and also improves the appearance.

According to the fourth and fifth aspects of the present invention, the charge controller is housed in the space below the elevating step formed below the elevating step, so that the charge controller can be inspected and serviced. The access to the charge controller can be easily performed only by removing the lifting step, and the charge controller can be inspected or taken out.
Incorporation can be performed easily, and maintenance is improved as in the first to third aspects of the invention. Further, the charging controller is housed in a surplus space below the elevating step, and an outlet for connection to an external power supply and a charging panel unit are installed using the elevating step. As with, existing vehicles can be diverted with only minor modifications.

In particular, according to the fifth aspect of the present invention, the opening / closing cover for opening / closing the outlet and the charging panel unit and the outside is provided in the lifting / lowering step. The panel portion is not exposed to the outside, and similarly to the invention of claim 2, the malfunction of the charging device caused by the outlet and the charging panel portion coming into contact with water droplets and dust is prevented, and the appearance is improved. Is also good.

In short, according to the present invention, the maintainability of the charging device including the charging controller is improved, and the intrusion of water droplets and dust into the charging device via the outlet for connecting an external power supply and the charging panel is avoided. As a result, it is possible to prevent the malfunction of the charging device from occurring.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part (a view taken in the direction of arrow Y in FIG. 3) showing a mounting structure of a charge controller of a battery-powered forklift according to a first embodiment of the present invention.

FIG. 2 is a view corresponding to FIG. 1 showing a second embodiment.

FIG. 3 is a side view of a battery-powered forklift to which the present invention is applied;

FIG. 4 is a diagram corresponding to FIG. 1 (a view taken in the direction of arrow Z in FIG. 3) showing a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 01 Body 2 Elevating mast 4 Battery 5 Driver's seat 6 Control handle 7 Driver's seat floor 07 Floor under floor 8 Elevating step 08 Elevating step lower space 9 Side cover 10 Service brake knob 13 Frame 14 Floor side plate 15 Outlet 16 Charging panel part 17, 19 Opening / closing cover 18, 20 Fixing bolt

Claims (5)

[Claims] 1. A battery-powered forklift for performing cargo handling and traveling by using a battery as a power source, comprising: a charging panel unit including an outlet for connecting to an AC power supply and a charging switch, and controls charging of the battery. In a battery-operated forklift charging apparatus including a charge controller, the charge controller is housed in a space below a driver's seat floor located below a driver's seat and formed below a driver's seat floor. Forklift charging device. 2. A connection outlet and a charging panel portion of the charge controller are arranged toward a side of the space under the floor, and the connection outlet and the connection outlet are provided on a floor side plate that covers a side portion of the space under the floor. The charging device for a battery-powered forklift according to claim 1, further comprising an opening / closing cover that opens and closes between the charging panel unit and the outside. 3. The battery according to claim 2, wherein the outlet for connection, the charging panel unit, and the opening / closing cover are provided on a step side for lifting and lowering arranged on a side of the driver's seat floor. Forklift charging device. 4. A battery-operated forklift for performing cargo handling and traveling by using a battery as a power source, comprising a charging panel unit including an outlet for connection to an AC power supply and a charging switch, and controls charging of the battery. In the charging device for a battery-powered forklift provided with a charge controller, the charge controller is housed in a space below a lift step formed below a lift step disposed on a front side of a driver's seat. Battery type forklift charging device. 5. An opening / closing unit for arranging a connection outlet and a charging panel unit of the charge controller toward the elevation step, and opening and closing the connection outlet and the charging panel unit and the outside in the elevation step. The charging device for a battery-powered forklift according to claim 4, further comprising a cover.