JP3223407B2 - Battery storage structure for 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 equipped with a battery.

[0002]

2. Description of the Related Art FIG. 8 illustrates a battery storage structure of a conventional forklift. As shown, a front plate 22 and a rear plate (not shown) are erected on the front and rear of the body frame 21 while
Side hoods 23 are disposed on the upper left and right side surfaces, respectively, to form a rectangular battery storage space. The left and right side hoods 23 have upper end flange portions 24 projecting inward at upper end portions thereof.
4 is attached to the front and rear plates 22 at the left and right upper edges so as to be detachably mounted. This is to improve workability at the time of battery replacement.

On the other hand, a battery hood 25 is arranged to cover the upper surface of the battery storage space. The battery hood 25 has a rear end mounted on a counter weight 26 mounted on the rear of the vehicle body via a hinge 27 so as to be openable and closable, and a front end fixed to the front plate 22 via a catch 28. When the battery hood 25 is closed, the left and right ends of the battery hood 25 overlap the upper end flange portion 24 of the side hood 23 to maintain the hooked state of the side hood 23.

[0004] In addition to the battery storage structure having the above-described structure, Japanese Patent Application Laid-Open No. 55-170123 discloses a battery storage structure in which a side hood can be attached and detached. In this method, a support is erected on a body frame, upper and lower L-shaped receiving members are fixed to the support via a bracket, and a hook protruding from an inner surface of a side hood is hooked to the L-shaped receiving member. By doing so, the side hood can be attached and detached.

[0005]

By the way, in the above-mentioned conventional battery housing structure, in order to prevent the side hood 23 from coming off, an inclined folded portion 24a is set in the upper end flange portion 24 as shown in the figure. A configuration is employed in which the folded portion 24a is pressed by upwardly inclined portions 25a on the left and right ends of the battery hood 25. However, in such a configuration, when a lateral external force is applied to the side hood 23 such that the side hood 23 is pushed outward, for example, when the vehicle falls down unexpectedly, the side hood 23 is engaged with the front and rear plates 22. It behaves as if it jumps in the direction of the arrow with the vicinity of the folded portion 24a of the upper end flange portion 24 as a fulcrum, and is easily detached from the vehicle body.

In order to solve such a problem, for example, the left and right inclined portions 25a of the battery hood 25 are further extended horizontally outward to increase the lateral width, and the side hood 2 is provided.
Although it is conceivable that the entire upper end flange portion 24 of the fuel cell 3 is held down, the battery hood 25
This causes another problem that the size becomes large and the weight increases.

In the case of the battery storage structure described in the above publication, the side hood is hooked via a hook to an L-shaped receiving member fixed via a bracket to a support erected on the vehicle body frame. For this reason, there is a problem that the structure is complicated and the support or the like hinders the battery replacement operation.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to prevent the side hood from coming off when the vehicle falls down, and to have a simple structure. An object of the present invention is to provide a battery storage structure for an industrial vehicle that does not hinder a battery replacement operation.

[0009]

Means for Solving the Problems In order to solve the above problems, the present invention is configured as follows. That is, the invention according to claim 1 is characterized in that front and rear plates erected on the front and rear on the vehicle body frame are disposed on left and right side surfaces of the vehicle body frame and are detachably attached to upper right and left edges of the front and rear plates. The left and right side hoods provided with the upper end flange portions to be stopped form a battery storage space. On the upper surface of the battery storage space, the left and right side edges of the battery hood are located inward of the upper end flange portions of the left and right side hoods. This battery hood is disposed so as to overlap the upper surface, and has a battery storage structure for an industrial vehicle in which a rear end portion is attached to the vehicle body side so as to be openable and closable, and a front end portion is fixed to the vehicle body side via a hook. When the battery hood is closed when the battery hood is closed, the lateral movement of the side hood Characterized in that it has established a stopper member for regulating.

According to a second aspect of the present invention, in the battery storage structure for an industrial vehicle according to the first aspect, the plate member is attached to the left and right end portions of the battery hood so as to protrude outward. And a locking portion is provided at its protruding end portion for engaging the outer side surface of the side hood so as to cover it from above.

[0011]

In the battery storage structure for an industrial vehicle according to the first aspect of the present invention, when a lateral external force is applied to the side hood to push it outward when the vehicle falls down. The stopper member resists this lateral external force. For this reason, the side hood is prevented from jumping upward in an open manner with the hang-up portion for the front and rear plates as a fulcrum, and does not come off.

In the battery storage structure for an industrial vehicle according to the second aspect of the present invention, the stopper member is constituted by a plate member, and the engaging portion provided at the protruding end portion is engaged so as to cover the outer surface of the side hood. Because of the configuration that receives a lateral external force acting on the side hood by this, in addition to being able to prevent detachment of the side hood when the vehicle falls down,
It does not hinder the opening operation of the battery hood, and no special processing is required for the side hood.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. First, a first embodiment will be described with reference to FIGS. FIG. 1 is a perspective view showing a battery storage structure of a forklift, and FIG. 2 is a perspective view showing a state in which a battery can be replaced. As shown, front and rear plates 2 are respectively erected on the front and rear of the vehicle body frame 1, while side hoods 3 are disposed on left and right side surfaces of the vehicle body frame 1, respectively. A battery storage space having a rectangular shape for storing the battery.

The left and right side hoods 3 have upper end flanges 4 which are substantially hook-shaped, that is, have inclined bent portions 5 over their entire lengths, at the upper ends thereof. Substantially angled protrusions 2 formed at the front and rear ends at the upper right and left edges of the front and rear plates 2
It is supported in a suspended shape by being hooked on a. That is, the left and right side hoods 3 are detachably hooked to the front and rear plates 2 via the upper end flange 4.

On the other hand, a battery hood 6 for covering the upper surface of the battery storage space has a rear end portion facing the vehicle body.
The counterweight 7 is mounted on a counterweight 7 mounted on the rear of the vehicle body via a hinge 8 so as to be openable and closable. The front end can be fixed via a catch 9 provided on the front plate 2 as a hook. And the battery hood 6
At the time of closing, as shown in FIG. 1, as shown in FIG. 1, the upward inclined portion 6 a formed over the entire length at the left and right ends of the battery hood 6 overlaps the upper surface of the folded portion 5 of the upper end flange portion 4 of the side hood 3. The side hood 3 is pressed down from above, whereby the vertical movement of the side hood 3 is suppressed. That is, the left and right edges of the battery hood 6 are configured to overlap the inner upper surface of the upper end flange portion 4 of the side hood 3, so that the lateral width is reduced.

When the battery is replaced, as shown in FIG. 2, after the fixing of the battery hood 6 by the catch 9 is released, the battery hood 6 is turned upward to be opened. In this state, the side hood 3 is
Because it is released from holding down by
The side hood 3 is detached from the front and rear plates 2, and the battery 12 can be replaced in that state.

In the above-described battery housing structure, the lateral movement of the side hood 3 is restricted by engaging with the side hood 3 when the hood is closed, at the substantially central upper surfaces of the left and right ends of the battery hood 6. A stopper member 10 for performing the operation is mounted. This stopper member 1
Reference numeral 0 denotes a plate member in the present embodiment, which is detachably attached to the battery hood 6 with bolts 11 and protrudes outward from the battery hood 6, and has a substantially hook-shaped engagement at its protruding end. A stop 10a is provided. The engaging portion 10a is engaged with the outer surface of the side hood 3 so as to cover the outer surface of the side hood 3 from above, thereby restricting the side hood 3 from moving laterally, that is, outward.

Therefore, when the battery hood 6 is in the closed state, as shown in FIG. 1, the locking portions 10a of the left and right stopper members 10 are engaged with the outer side surface of the side hood 3 from above. As shown in FIG. 3, a lateral external force P acts outward on the side hood 3 as shown by the arrow in the drawing, and the side hood 3 is moved outward with the hook between the front and rear plates 2 as a fulcrum. Even if it attempts to jump upward, the side hood 3 can be held at the current position against this. Therefore, even when the vehicle falls, as long as the battery hood 6 does not come off, the separation of the side hood 3 is reliably prevented.

Since the stopper member 10 is engaged with the side hood 3 so as to cover it from above, the stopper member 10 not only does not hinder the opening / closing operation of the battery hood 6 but also engages with and releases the side hood 3 from the battery. The opening and closing operation of the hood 6 can be performed simultaneously. Further, since the stopper member 10 is provided on the battery hood 6, for example, the front and rear plates 2 on the vehicle body side are provided.
It does not become a hindrance when performing battery replacement work or the like, as compared with the case where the battery is provided.

Next, a second embodiment of the present invention will be described with reference to FIGS. In this embodiment, two stopper members 10 are provided at the front end and the rear end of the lower surface of the battery hood 6, respectively.
For example, it is attached by welding. Each stopper member 1
Reference numeral 0 denotes a substantially L-shaped engaging projection, and when the battery hood 6 is closed, is inserted from above into a receiving portion 4a having a square hole formed at the front and rear ends of the upper end flange portions 4 of the left and right side hoods 3. The side hood 3 is configured to restrict the lateral movement of the side hood 3. The tip of the locking projection constituting the stopper member 10 is formed in a tapered shape in the front-rear direction, so that insertion into the square hole of the receiving portion 4a is facilitated.

Therefore, according to the second embodiment, the same operation and effect as those of the first embodiment can be obtained, and in addition, since the stopper member 10 is set on the lower surface of the battery hood 6, the appearance is improved. The effect of not impairing the appearance of the image is obtained.

FIG. 6 shows a third embodiment of the present invention. In the third embodiment, a stopper member 10 composed of a pin is projected upward on the upper end flange portion 4 side of the left and right side hoods 3, and a boss 13 with a hole is set on the lower surface side of the battery hood 6. When the battery hood 6 is closed, a pin serving as a stopper member 10 is inserted into the hole of the boss 13 so as to restrict the lateral movement of the side hood 3. Therefore, according to the third embodiment, the same operation and effect as those of the first embodiment can be obtained.

In the illustrated embodiment, the upper surface of the inclined folded portion 5 formed on the upper end flange portion 4 of the side hood 3 is pressed by the inclined portion 6a of the battery hood 6, but FIG. As shown, the left and right ends of the battery hood 6 may be formed flat so as to press the upper end flange 4 of the side hood 3. Further, in the first embodiment, the bolt 11 is used as a means for attaching the stopper member 10 to the battery hood 6, but the attaching means is not limited to the bolt, and may be welding, a rivet, or the like. The attachment means for the stopper member described in 3 can be appropriately selected, and the number of the stopper members 10 can be increased or decreased as necessary.

[0024]

As described above in detail, according to the first aspect of the present invention, it is possible to reliably prevent the side hood from being detached when the vehicle falls down accidentally, thereby improving safety. Further, in a state where the battery hood is opened and the side hood is removed, the stopper member for preventing the side hood from being detached does not remain on the vehicle body side. Moreover, the measure for preventing detachment by the stopper member of the present invention does not increase the size of the battery hood. According to the second aspect of the present invention, no special processing is required for the side hood, the structure of the stopper member is simple, and the production cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a battery hood structure of a forklift according to Embodiment 1 of the present invention.

FIG. 2 is a perspective view showing a state in which battery replacement is supported.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a perspective view illustrating Embodiment 2 of the present invention.

FIG. 5 is a sectional view showing an engagement state of a stopper member according to the second embodiment.

FIG. 6 is a perspective view illustrating a third embodiment of the present invention.

FIG. 7 is a partial cross-sectional view showing a modified example of a structure for holding down a side hood by a battery hood.

FIG. 8 is a perspective view showing a conventional battery storage structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Body frame 2 ... Front and rear plate 3 ... Side hood 4 ... Upper end flange part 5 ... Folding part 6 ... Battery hood 8 ... Hinge 9 ... Catch 10 ... Stopper member 10a ... Locking part

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B66F 9/075 B60R 16/04 B62D 25/24

Claims (2)

(57) [Claims] 1. Front and rear plates erected front and rear on a body frame, and upper ends disposed on left and right side surfaces of the body frame and detachably hooked to left and right upper edges of the front and rear plates. A battery storage space is formed by the left and right side hoods provided with the flange portions. On the upper surface of the battery storage space, the left and right side edges of the battery hood overlap with the upper inner side of the upper end flange portions of the left and right side hoods. The battery hood is a battery storage structure for an industrial vehicle having a rear end portion attached to the vehicle body side so as to be openable and closable and a front end portion fixed to the vehicle body side via a hook. When the battery hood is closed, the hood and the side hood are engaged with each other to restrict lateral movement of the side hood. Battery holder for a industrial vehicle installed the path member. 2. The battery device according to claim 1, wherein the stopper member includes a plate member attached to left and right edge portions of the battery hood so as to protrude outward. The stopper member covers the outer surface of the side hood from above from above. The battery storage structure for an industrial vehicle according to claim 1, further comprising a locking portion that engages.