JP2616327B2 - Battery storage structure for battery-powered industrial vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery storage structure for an industrial vehicle such as a forklift, and more particularly, to a battery type in which a battery case containing a large number of batteries is lifted by a hoist or a crane. Regarding the storage structure.

Generally, in a counterweight type forklift as shown in FIG. 5, side frames 5 forming left and right wall surfaces of a battery storage chamber are provided with a battery storage chamber as shown in FIG. 2
Is set higher than the bottom surface of the battery case 1 so as to enclose the battery case 1. Incidentally, the front and rear wall surfaces of the battery storage chamber are constituted by a front plate and a rear plate, respectively.

Depending on the type of vehicle, a plurality of fixtures 21 for regulating the play of the battery case 1 in the front-rear direction and the left-right direction are provided on the bottom surface of the battery storage chamber as shown in FIG.
The fixing device 21 is configured such that the fixing position of the fixing tool 21 with respect to the bottom plate 12 of the battery storage chamber 2 can be adjusted.

[0004]

However, the conventional battery storage structure described above has the following problems. That is, in the case of the structure shown in FIG. 10, since the left and right side frames 5 are tall, when the battery is removed from the battery storage chamber 2 when the empty battery is replaced with the charged battery, the battery case 1 must be connected to the side frame. You need to lift it high to avoid hitting 5,
If it is lifted too much, it may hit the steering handle, the battery hood, etc., so that the lifting height must be carefully determined and the work is troublesome. When a charged battery is mounted, the battery case 1 needs to be accurately positioned so as not to hit the left and right side frames 5 and then lowered. As described above, in the conventional battery storage structure, the workability at the time of changing the battery is poor, and the operation of changing the battery requires skill, and is very careful and requires a long time.

[0005] In the case of the case with the fixture shown in FIG. 11, it is much more difficult to replace the fixture with the fixture 21 fixed at a fixed position than in the above case. At the time of transfer, the fixing bolt 22 of the fixing tool 21 is loosened, the fixing tool 21 is retracted along the long hole 12a of the bottom plate 12 to a position where it does not get in the way, and is fixed again after the transfer. I have.
However, such work requires a considerable amount of work, and as a result, there is no change in that the workability at the time of transfer is poor.

In view of the above-mentioned problems, the present invention has been made to solve the above-mentioned problems and technical problems to be solved by providing an improved battery storage structure for a battery-type industrial vehicle so that a battery transfer operation can be easily performed. I do.

[0007]

Means for Solving the Problems In order to solve the above problems, the present invention is configured as follows. In other words, the battery storage structure of the battery-type industrial vehicle according to the first aspect of the present invention is a battery storage structure for transferring a battery to one of the left and right side frames constituting the left and right wall surfaces of the battery storage chamber having a substantially rectangular planar shape. And a side cover for opening and closing the entrance is pivotably attached to the entrance so as to be able to be turned upside down, and the side cover is always provided with a falling force to the outside, and a horizontal piece provided at a lower portion thereof is provided. It is characterized in that the battery case is raised by being pressed by the lower edge of the battery case.

According to a second aspect of the present invention, the battery housing structure of the battery-type industrial vehicle is provided so as to restrict the movement of the battery case by contacting the bottom surface of the substantially rectangular battery housing chamber with the outer surface of the battery case. Are fixed so as to be able to be turned upside down, and these fixing devices are always provided with a falling force to the outside, and the horizontal piece provided at the lower part thereof is pressed down by the lower edge of the battery case. It is characterized in that it is configured to be erected.

[0009]

Therefore, in the battery storage structure according to the first aspect of the present invention, when the battery case in the battery storage room is lifted in order to replace the empty battery with the charged battery, the side to which the falling force is applied is provided. The cover falls over to the outside, and the entrance for battery replacement is opened. Therefore, the battery case can be easily replaced by using the doorway without lifting the battery case high. Then, when the battery case containing the charged battery is mounted in the battery storage room, the side cover that has been overturned outwards is pressed up by the lower edge of the battery case to stand up and close the entrance. I do.

In the battery storage structure according to the second aspect of the present invention, when the battery case in the battery storage room is lifted in order to replace the battery, the fixture provided with the overturning force falls outward. And withdraws from the battery restraint position. Therefore, the battery case can be easily replaced afterwards without interference from the fixture. Then, when the battery case containing the charged battery is mounted in the battery storage chamber, the fixture that has been retracted outward until now is pressed up by the lower edge of the battery case and stands up, The battery case is returned to the restraining position for restricting the movement of the battery case.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. First, a first embodiment of the present invention will be described with reference to FIGS. FIG. 5 shows a counterweight type battery forklift, and shows a state in which a battery case 1 containing a large number of batteries is mounted in a battery storage chamber. FIG. 1 shows a side view of the battery storage chamber 2, and FIG. 2 shows the battery storage chamber 2 as a cross section taken along the line AA in FIG. 1. As shown in FIG. The front and rear plates 3, 4 and the left and right side frames 5 form a substantially rectangular plane.

As shown in FIGS. 1 and 2, of the left and right side frames 5 constituting the left and right side walls of the battery storage chamber 2, the side frame 5 on the battery transfer side is the front and rear width of the battery case 1. Is cut out to have a length corresponding to the length of the battery, and an entrance 6 for changing the battery is formed, and a side cover 7 for opening / closing the entrance is pivotally attached to the entrance 6 so as to be able to be turned upside down.

As shown in FIG. 4, the side cover 7 is a long plate having a substantially L-shaped cross section (or a substantially U-shaped cross section), and a boss 8 provided on the lower surface of a horizontal piece 7a. The mounting plate 9 is rotatably pivoted by a pin 11 inserted into a boss 10 provided on the mounting plate 9, and the mounting plate 9 is welded to a bottom plate 12 of the battery storage chamber 2 as shown in FIG. It is fixed. Further, when the battery case 1 is stored in the battery storage chamber 2, the horizontal piece 7 a of the side cover 7
At this time, the upright piece 7b, which is the cover body, stands up and closes the entrance 6 for battery transfer.

In the standing position, the side cover 7 is set so that the center of gravity thereof is located outside the center of rotation, and a falling force is applied outward. Is restricted by the stopper 13 provided in the first position. In addition, it is specified that the battery transfer is generally performed from either the right side or the left side of the vehicle. Therefore, the head guard 14 corresponding to the battery transfer side has a slit through which a crane or hoist rope can pass. 14a is set.

The battery accommodating structure of the present embodiment is constructed as described above.
When the battery case 1 in the battery storage chamber 2 is lifted using a crane, a hoist, or the like, the side cover 7 is rotated by the overturning force due to its own weight as shown in FIG. Fall outside until restricted. Therefore, the entrance / exit 6 for battery transfer is opened, and the height of the side cover 7 is reduced, so that the subsequent transfer of the battery case 1 to the battery storage chamber 2 becomes easy.

When the battery case 1 is mounted in the battery compartment 2, the horizontal piece 7a of the side cover 7 is pressed by the lower edge of the battery case 1 and the upright piece 7
b rises and closes the battery entrance 6. As described above, according to the present embodiment, when the battery case 1 is replaced, the side cover 7 is rotated by using the up and down operation of the battery case 1 so that the entrance 6 for battery replacement is automatically set. Since the door can be opened and closed, no trouble is taken for opening and closing the door, and the door can be easily replaced by using the door 6 without lifting the battery case 1 high.

Next, a second embodiment of the present invention will be described with reference to FIGS. This embodiment relates to a battery storage structure in a case where a fixture for regulating the movement of the battery case 1 in the front-rear direction and the left-right direction is provided in the battery storage chamber 2. A total of four front and rear and left and right fixtures 15 are attached to the center of each of the left, right, front and rear side edges of the bottom plate 12 of the battery storage chamber 2. Each fixing member 15 is formed of an L-shaped plate as shown in FIG. 8, and as shown in FIGS. And a pin 18 inserted through a boss 16 provided on the lower surface of the horizontal piece 15a and a boss 17 provided on the periphery of the opening.
, So that it can be turned and pivoted.

Thus, each fixture 15 has its horizontal piece 15
a is held down by the lower edge of the battery case 1 mounted in the battery storage chamber 2, the upright piece 15b is set upright on the side of the case to restrain its movement. The position of the center of gravity is located outside the center of rotation, so that an overturning force is applied outward. In addition, the maximum falling angle to the outside is a stopper. In this embodiment, the left and right fixing members 15 are provided by the side frames 5, and the front and rear fixing members 15 are provided by the front and rear plates 3 and 3.
4

In the battery storage structure of the second embodiment configured as described above, when the battery case 1 is lifted in order to change the battery, the pressing of the horizontal piece 15a by the battery case 1 is released as shown in FIG. Each of the fixed members 15 falls outwardly to a position restricted by the side frame 5 and the front and rear plates 3 and 4 by the falling force of its own weight, and retreats from a predetermined battery restraining position. Therefore, the battery case 1 can be lifted without receiving the interference of the fixture 15 .

On the other hand, when the battery case 1 is mounted in the battery storage chamber 2, the fixing member 15 is retracted until the horizontal piece 15a is pressed by the lower edge of the battery case 1, but the horizontal piece 15a is pressed. Then, the upright piece 15b stands up and restrains the battery case 1. In this case, even if the battery case 1 is displaced back and forth or left and right as shown in FIG.
Is pushed by the upright action of the upright piece 15b in a suspended state until it is placed in the battery storage chamber 2, and the positional deviation is corrected. Therefore, the battery case 1 is mounted at a regular position restrained by the fixture 15.

As described above, according to the present embodiment, when the battery is replaced, the fixture 15 can be automatically retracted and returned from the restrained position by using the up-and-down operation of the battery case 1. The presence of the fixture 15 does not hinder the replacement of the battery case 1, but rather functions effectively in positioning, thereby facilitating the operation of replacing the battery case 1.

In the illustrated embodiment, the side cover 7
Although the fixture 15 is overturned outward by setting the position of the center of gravity outside the center of rotation, the spring may be positively biased by a spring instead.

[0023]

As described in detail above, according to the present invention,
By using the up and down movement of the battery case, the side cover can be automatically opened and closed or the fixture can be automatically retracted from the restrained position and automatically returned, so that the workability of changing the battery can be improved. is there. Therefore, it is possible to efficiently and safely perform the operation of changing the battery.

[Brief description of the drawings]

FIG. 1 is a side view of a battery storage structure according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1, showing a battery mounted state.

FIG. 3 is a cross-sectional view taken along the line AA of FIG. 1, showing when the battery is replaced.

FIG. 4 is a perspective view showing a side cover and a mounting plate.

FIG. 5 is a schematic side view of a counterweight type battery forklift.

FIG. 6 is a sectional view of a battery storage structure according to a second embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a state in which the battery is replaced.

FIG. 8 is a perspective view showing a fixture.

FIG. 9 is a sectional view taken along line BB of FIG. 6;

FIG. 10 is a schematic explanatory view of a conventional battery storage structure.

FIG. 11 is an explanatory view of a battery storage structure including a conventional battery restraining fixture.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Battery case 2 ... Battery storage room 5 ... Side frame 6 ... Battery doorway 7 ... Side cover 7a ... Horizontal piece 7b ... Upright piece 15 ... Fixture 15a ... Horizontal piece 15b ... Upright piece

Claims (2)

(57) [Claims] An entrance for battery transfer is provided in one of left and right side frames constituting left and right wall surfaces of a battery storage chamber having a substantially rectangular planar shape, and an entrance for opening and closing the entrance is provided in the entrance. A configuration in which the side cover is pivotally attached so as to be able to be turned upside down, and the side cover is always applied with a falling force to the outside, and is raised by a horizontal piece provided at a lower portion thereof being pressed by a lower edge portion of the battery case. Battery storage structure for a battery-powered industrial vehicle. 2. A plurality of fixtures for restricting the movement of the battery case by abutting against the outer surface of the battery case are provided on the bottom surface of the battery storage chamber having a substantially rectangular shape in a plan view so as to be movable up and down. A battery storage structure for a battery-type industrial vehicle, wherein the fixing device is always provided with an overturning force to the outside, and is raised by a horizontal piece provided at a lower portion thereof being pressed by a lower edge portion of the battery case.