JPH01226427A - Battery case for battery fork lift - Google Patents

Abstract

PURPOSE:To facilitate mounting of a sheet on a hood by a method wherein a suspension tool is vertically movably inserted in a guide cylinder, and a hook having an engaging part and a taper part is rotatably disposed to the vicinity of the suspension tool. CONSTITUTION:A suspension tool 2 is formed in the shape of a loop, and frame parts 22 and 23 on both sides are vertically movably inserted in guide cylinders 31 and 32. The guide cylinders 31 and 32 are welded to a battery case 1. A hook 4 is provided at a central part with an engaging part 41 on the side facing the suspension tool, and the lower part of the engaging part 41 has a taper part 42 pointing in an external direction. The hook has its upper part rotatably mounted to the side well of the battery case 1 by means of a shaft pin 44, and is provided at its upper end with a lever 43 for controlling rotation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a battery case in a battery forklift truck, and more particularly to the structure of a hanging tool for hoisting a battery case when replacing a pantry.

[Prior art]

In battery forklift trucks.

A battery is used as a power source for its various operating mechanisms. This battery is housed in a battery case. However, as shown in FIG.

The battery case 90 is generally mounted in a hood 98 at the rear of the forklift 9. As shown in FIG. 7, the battery case 90 is provided with a guide tube 93 on the side wall of the battery case 90.

A loop-shaped hanging tool 91 is housed in this so that it can move up and down. When lifting the battery case 90 when replacing the battery, the hanging tool 91 is lifted upward and the hanging tool 91 is locked with the stopper fitting 92 (for example, see Japanese Utility Model Publication No. 58-9780). Next, the fork of another forklift is inserted into the loop of the hoist 91 and lifted (see FIG. 8).

Furthermore, as shown in FIG. 8, another battery case is provided with two fixing hangers 951 on the left and right sides above the battery case 95.

A fork 99 is inserted into this fixed hanging tool 951 to lift up the battery case 95.

By the way, storing a large number of batteries in a battery case increases the weight and makes it difficult to move, so it is not possible to use two or three battery cases and mount them on a forklift. Yes (see Figure 8). This mounting type is called a split battery.

In addition, as shown in Fig. 6, the mounted battery case 9
A seat 97 for a normal driving vehicle is provided above the hood 98 that covers the vehicle.

However, as shown in FIG. 8, if the hanger 951 of the battery case 95 is of a fixed type, the hood will also be higher by the height of the hangers 951, 961, and as a result, the position of the seat will also change. This makes it impossible to provide the seat 97 at an appropriate position.

Therefore, as shown in FIGS. 6 and 7, the hanging tool 91
A device that can move up and down has been proposed (the above publication)
.

However, in the case of the split battery, it is required that the battery cases be mounted as closely as possible. Therefore, in the battery case shown in FIGS. 6 and 7, which is provided with a vertically movable hanging tool 91 and a stopper 92 that locks the hanging tool 91 upward, this hanging tool 91. The parts of the fasteners 92 are located on opposing surfaces of the battery case 90. Therefore, the gap between the two becomes narrower and the hanging tool 91
cannot be locked to the stopper fitting 92. The reason why the hanging tool 91 is located on the opposing surface of the two battery cases 90 is that when mounting the battery cases, as shown in FIG. This is to arrange them in order.

In addition, in the case of a two-split battery, as shown in FIG. 8, hanging odor 951,
It is possible to shift the positions of the battery cases 961 and 961, but if the battery cases are small, there is not enough space to shift the positions of the battery cases 961 and 961, but as shown in the figure, there are 2 hanging tools 95
A total of four hangers 961 (1 and 2 hangers 961) are lined up, and one hanger 951 is connected to the hanger 961 of one battery case 96 so that the fork 99 can be inserted therein.
This is because it needs to be provided at a different position. Also,
If the position of the lifting tool is shifted in this way, there is a risk that an uneven load will be generated during lifting.

As mentioned above (in conventional battery cases, the structure of the hanging tool is affected by the ease of attaching the seat).

There were problems with the ease of putting in and taking out the hanging equipment and the location of the hanging equipment.

The present invention aims to provide a battery case for a battery forklift truck that solves these conventional problems.

[Means for solving problems]

A first invention of the present application is a battery case that is mounted on a battery forklift and has a box-like shape and has a hanging tool provided on the outer surface of the opposing side wall, wherein the hanging tool has a loop shape and is provided with a guide provided on the battery case. Insert into the tube so that it can move up and down.

Further, near the hanging tool, a hook is rotatably disposed on the side wall of the battery case to engage the lower end of the hanging tool when the hanging tool is raised.

Moreover, the hook has an engaging part that locks the lower end of the hanging tool on the side facing the hanging tool, and a tapered part that gradually decreases from the engaging part to the lower end of the battery forklift. in the battery case.

What should be noted in the first invention is that when the above-mentioned hanging device is pulled up to move the battery case, etc., the hook automatically holds the hanging device in the raised position, and when used directly below the hanging device, the hook is not maintained. By removing the lock, the sling is held in the lowered position.

The upper end of the hanging tool is located below the upper end of the battery case.

Although the above-mentioned hanging tool has a loop (annular shape), it is preferable that its shape is square as shown in the embodiment. In particular, the upper end is preferably flat in consideration of inserting a fork. Further, one hanging device, preferably two hanging devices, are provided on each opposing wall of the battery case.

The guide tube holds the hanging tool so as to be movable in the vertical direction, and also serves to lock the lower end of the hanging tool when the hanging tool is pulled up, and to lock the upper end of the hanging tool when the hanging tool is lowered. do. Also.

The guide tube is used to hold the battery case and its contents (when the battery case and its contents are lifted up using a hanging tool, the entire weight of the battery case and its contents is loaded onto this guide tube.

The guide tube has a structure to withstand it.

It also needs to be fixed to the battery case. Also.

It is preferable that the upper end of the guide tube is spaced apart from the upper end of the battery case so that the upper frame part of the suspender does not protrude upward from the upper end of the battery case when the suspender is used directly below the suspender.

Next, a hook is provided near the hanging tool to automatically hold the hanging tool at the upper limit position. The hook has an engaging part for locking the lower end of the hanger on a surface facing the hanger, and is retracted downward from the surface facing the hanger (1
It has a tapered part. Further, the upper end of the hook is rotatably attached to the battery case.

Next, a second invention of the present application is a battery case that is mounted on a battery forklift and has a box-like shape and has a hanging tool provided on the outer surface of the opposing side wall, wherein the hanging tool has a loop shape and is attached to the battery case. It is inserted into a guide tube provided so that it can move up and down, and the hanging tool is urged upward by an elastic body such as a spring interposed between it and the battery case. The battery case for a battery forklift is characterized by being provided with a stopper that resists the biasing force and suppresses the lifting of the hanging tool.

What should be noted in the second invention is that, at all times (when used directly below the hanging device), the hanging tool is urged upward by a spring or the like, and the lifting of the hanging tool is suppressed by a stopper. Sometimes, by releasing this stone bar, the sling is automatically raised.

However, each of the above-mentioned hanging tools is placed on the opposite wall of the battery case.
2, preferably 2 each. When two slings are installed, as shown in Figure 3, the lower frames of the slings should be connected to each other so that the 9-car slings are biased by one spring, and there should also be one stopper. You can also do it. Also, the upward force on the 1st hanging device is as follows.

As shown in Part 3, it is pulled using a spring, etc.

Alternatively, there is a method of pushing it up using a spring or the like.

In addition, as in the first invention and Mr. O, there is a space between the upper end of the guide cylinder and the upper end of the battery case so that the upper frame part of the hanging tool does not protrude above the upper end of the battery case when used directly below the hanging tool.
It is preferable to take intervals.

Further, the hanging tool itself and the guide tube are the same as those in the first invention.

[Action and effect]

In the first invention, a loop-shaped hanging tool is vertically movably inserted into a guide tube, and a hook having an engaging part and a tapered part is rotatably disposed near the hanging tool. When the hanger is used directly below the hanger (when lowered), the lower end of the hanger is in contact with the tapered portion of the hook.

Therefore, when the hanger is used, when the hanger is pulled upward, the lower end of the hanger rises along the tapered portion of the hook. At this time, the 3 hooks are rotated outward. Then, when the side end comes to the position of the engaging part due to further upward movement, the hook rotates toward the side end and automatically locks the lower end of the hanger. This causes the sling to be held (locked) in the raised position. Next, after using the sling, the hook is rotated to release its hold, and the lower end of the sling is released and lowered by its own weight.

As described above, according to the first aspect of the present invention, the hanger can be positioned below the upper end of the battery case when not in use, and the seat can be easily attached to the hood. Also,
In the case of the split battery, the hanging tool is located between both battery cases, but by simply raising the hanging tool, the hanging tool can be automatically held in the raised position, and the hook can be secured when not in use. The sling can be automatically lowered by simply removing the sling, making it easy to put in and take out the sling.

Further, the mounting position of the hanging device is not limited as in the case of the fixed hanging device of the prior art.

Next, in the second aspect of the invention, since the hanging tool is always urged upward and its rise is suppressed by the stopper, when the hanging tool is used, the lifting tool can be raised by simply disengaging the stopper, and the lifting tool is not used. It becomes possible. After using the hanging tool, the hanging tool is pushed down and the hanging tool is locked to the stopper.

In this way, according to the second invention, in the case of the split pantry, the hanging tool is positioned between both battery cases, but only by releasing the stopper, the hanging tool is automatically moved to the raised position. can be retained. Also, push down the hanging equipment when not in use.

The sling can be held in the lowered position simply by engaging the stopper. Therefore, it is easy to put in and take out the hanging tool. Also, like the first invention, the seat is easy to install,
There are no restrictions on the mounting position of the hanging tool.

〔Example〕

First Embodiment Regarding the battery case according to the embodiment of the first invention, the first
This will be explained using the diagram and FIG.

The battery case 1 of this example is used for a battery forklift, and the two battery cases 1 are stored in a hood as a one-split battery type (see Fig. 6). side wall 1
1. Two hanging tools 2 provided in each section 12, and a guide tube 31 that guides and holds the hanging tools 2 in the vertical direction.
, 32 and a hook 4.

The hanging tool 2 has an upper frame portion 21. It forms a loop consisting of a lower frame part 24 and side frame parts 22 and 23 connected to both sides thereof. The both side frame portions 22.23 are inserted into the guide tube 31.32 so as to be movable up and down. The guide cylinders 31 and 32 are.

It is welded to the battery case 1. In addition, the hook 4 is
It has an engaging part 41 on the side facing the above-mentioned hanging tool in the center part, and below the engaging part 41 is a tapered part 42 facing outward.
has. As shown in FIG. 2, the upper portion of the hook is rotatably attached to the side wall of the battery case 1 via a shaft pin 44.

The upper end has a lever 43 for rotational operation.

In addition, the reference numeral 45 in the figure is a washer, and 46 is a split pin.

The battery case 1 with the above configuration has two of these.

In the hood, as shown in FIG. 1, the hanging parts are placed side by side, facing each other.

Since the battery case 1 and the hanger 2 of this example are configured as described above, they have the following effects.

First, when using directly below the suspension, as shown on the right side of Figure 1,
The hanging tool 2 is in a lower position, and the side end of the lower frame part 24 is in contact with the tapered part 42 of the hook 4.

Next, when moving the battery case 1 when replacing the battery, the hanging tool 2 is pulled upward. At this time,
As described above, the side end of the lower frame portion 24 of the hanging tool 2 rises while contacting the tapered portion 42 of the hook 4, and the hook 4 accordingly rotates slightly outward. When the side end of the hanging tool 2 comes above the tapered part 42, the engaging part of the hook 4 automatically engages with the side end, and as shown by the solid line on the left side of FIG. 2 is automatically held by the hook 4. Then, a fork is inserted into the hanger 2 and the battery case 1 is moved.

After using the hanging device 2, the lever 43 at the upper end of the hook 4 is moved to the left as shown by the two-dot chain line on the left side of FIG. 1 to rotate the hook 4.

As a result, the hook 4 is disengaged from the lower frame portion 24 of the hanging tool 2, and the hanging tool 2 is lowered by its own weight. Above, when descending, the upper frame portion 21 of the hanging tool 2.

It is located below the upper end of the battery case 1.

In this way, in the battery case (1) of the example, the upper end of the hanger 2 does not protrude above the battery case 1 when the hanger 2 is not in use, so there is no problem in placing the sheet on the hood as described above. . Also.

The sling 2 can be automatically held in the raised position and.

When not in use, the hanging tool 2 can be lowered by simply rotating the lever, and even in the case of a two-part battery, the hanging tool can be easily taken in and out. Furthermore, compared to fixed hanging tools, there are no restrictions on the mounting position of the hanging tool.

9 In this example, all four of the hanging tools 2 are attached as described above (the structure is shown in which they are engaged with the hook 4, but 5 the outer surface of the battery case 1 (in the case of a split battery 9 the opposite surface to which the two battery cases face each other). The side surface) is.

It is also possible to use a fixed hanging device or a hanging device that does not use the hook 4 and is only movable up and down.

Second Embodiment An embodiment related to the second invention will be described with reference to FIGS. 3 to 5.

In the battery case 1 of this example, in the hanging tool 2 shown in the first embodiment, the lower frame parts 24 of the hanging tools 2 provided on the same side of the battery case 1 are connected to each other by a connecting rod 25, and the connecting rods 25 are connected to each other. The rod 25 is urged upward by a spring 6, and a stopper 5 is provided near the top of the hanger 2. The rest is the same as the first embodiment.

Thus, both ends of the connecting rod 25 are screwed into the lower frame portions 24 of the hanging tool 2 on both sides at the connecting portions 251, 251. The spring 6 has a loop 61 at its lower end inserted into the connecting rod 25, and a locking part 62 at its upper end is connected to the battery case 1.
It is locked in the locking tool 63 of. Therefore, the spring 6 is interposed so as to constantly lift the connecting rod 25 upward. The stopper 5 is welded to the battery case 1,
As shown in FIG. 4, the main body 50 is pipe-shaped and has a notch 501 above the central portion.

It consists of a stopper pin 52 slidably inserted into its interior 51. The stopper pin 52 is connected to the lever 5
It has 21. Further, the cutout portion 501 has an engagement groove 502 at the lower front portion for engaging the lever 521.

Further, the above-mentioned strike/seven perbin 52 is arranged so as to come into contact with the upper frame portion 21 when the hanging tool 2 is lowered (
(See the third circle).

Since the battery case 1 of this example is configured as described above, when the battery case 1 is used under the suspension, the suspension tool 2 is lowered against the tensile force of the spring 6, as shown in FIG. 2 to prevent the hanging tool 2 from rising. At this time, the lever 521 of the stopper 5 is.

It is engaged in the engagement groove 502.

Next, when using the hanging tool 2, the lever 521 of the above-mentioned Spar 5 is disengaged from the above-mentioned engagement groove 502, and the lever 521 is moved rearward as shown in FIG. As a result, the connection p which was urged upward by the spring 6
J25 rises with a hanging odor of 2°2 on both sides. Therefore, the fork 99 is inserted into the hanger 2, and the battery case 1 is moved.

After using the hanging tool 2, the hanging tool 2 is pushed down and the stopper pin 52 is projected as shown in FIG. 3, thereby suppressing the lifting tool 2.

Therefore, according to one example battery case.

The hanging tool 2 can be raised and held in a used state simply by operating the stopper 5, and the hanging tool 2 can be easily put in and taken out. Other effects similar to those of the first embodiment can be obtained.

In addition, in one example of the stopper 5, between the rear end of the stopper pin 52 and the rear end of the main body 50.

A spring may be interposed to keep the stopper pin 52° urged forward at all times.

Thereby, when the suspender 2 is not in use, the suspender 2 can be reliably held in the lower position.

Conversely, a spring may be interposed within the main body 50 between the front of the main body and the lever 521 to bias the stopper pin 52 rearward. As a result, when the lever 521 is removed from the engagement groove 502, the stopper pin 52 automatically moves back and the hanging tool 2
can be raised. In this case, the stopper pin 52 is prevented from retreating when the hanger 2 is not in use.

It is necessary to deeply and reliably engage the lever 521 with the engagement groove 502.

Furthermore, on the upper side, the two hanging tools 2 are quickly connected with the connecting rod 25 so that they can be raised and lowered simultaneously, but a spring 6 and a stopper 5 can also be provided for each hanging tool 2.

[Brief explanation of the drawing]

1 and 2 show a battery case according to the first embodiment, FIG. 1 is a perspective view of the battery case, FIG. 2 is a side sectional view showing a state in which the hook is attached, and FIGS.
The figure shows the battery case according to the second embodiment, and FIG. 3 shows the case when the hanging device is lowered. Figure 5 is a perspective view of the hoist when it is lifted, Figure 4 is a perspective view of the stopper, Figure 6 is a side view of the forklift with the battery case attached, Figures 7 and 8 are the conventional battery case. FIG. l...Battery case. 2... Hanging equipment. 25...Connecting rod. 31.32 ・ ・ Guide tube. 4...Hook. 41...Engagement part. 42... Theba section. 5... Stopper. 52...stopper pin. 6...Spring. 99...Fork. Applicant Toyota Industries Corporation Representative Patent Attorney Yoshiyasu Takahashi Figure 1 φ3 Figure 5 Figure 6 Figure 7 Figure 1 Figure 8

Claims (2)

[Claims] (1) In a battery case that is mounted on a battery forklift and has a box-like shape and a hanging device is provided on the outer surface of the opposing side wall, the hanging device has a loop shape and can be moved up and down in a guide tube provided on the battery case. A hook is rotatably disposed on the side wall of the battery case, and near the hanging tool, the hook engages with the lower end of the hanging tool when the hanging tool is raised. Moreover, the hook has an engaging part that locks the lower end of the hanging tool on the side facing the hanging tool, and a tapered part that gradually decreases from the engaging part to the lower end of the battery forklift. battery case. (2) In a battery case that is mounted on a battery forklift and has a box-like shape and a hanging device provided on the outer surface of the opposing side wall, the hanging device has a loop shape and can be moved up and down in a guide tube provided on the battery case. The hanging tool is biased upward by an elastic body such as a spring interposed between it and the battery case, and there is always a device near the hanging tool that resists the urging force. A battery case for a battery forklift truck, characterized by being provided with a stopper that suppresses the lifting of a hanging device.