JP2002167181A - Battery protection structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery protection structure capable of omitting labor in charging a battery without any deterioration in increased safety performance of the battery and its periphery and improving workability. SOLUTION: This battery protection structure is provided with a battery cover 12 opening/closing an outlet for the battery housed in a vehicle body by means of a locking structure and a cover opening/closing a battery charging port 14 protruded from a vehicle body frame 11. The battery cover 12 opening/ closing the battery outlet and the cover opening/closing the charging port 14 are molded integrally with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery protection structure for use in an explosion-proof transport vehicle for increased safety.

[0002]

2. Description of the Related Art In general, transport vehicles such as forklifts (so-called explosion-proof vehicles) used in places that handle hazardous materials such as explosive gas, flammable gas, and flammable liquid are subject to safety in accordance with the Industrial Safety and Health Law. It is obligatory to adopt a safety-enhancing structure with enhanced characteristics, that is, a locking structure. "Locking structure" is "screwdriver,
Must not be easily loosened by general tools such as spanners, pliers, etc. "

[0003] For this reason, in order to prevent danger due to temperature rise and damage due to external force, a structure around a battery mounted as various power sources of a transport vehicle has conventionally been provided.
For example, a configuration as shown in FIGS. 8 and 9 is employed.

That is, in this conventional example, a battery (not shown) is housed in a vehicle body frame 11, and one of the corners of the vehicle body frame 11 is provided with a battery take-out surface for battery replacement or the like. The battery cover 12 is attached to be openable and closable with a hinge. Also,
The battery is housed in the vehicle body together with the battery case in the battery case, and the charging port of the battery is located in a state protruding outside the vehicle body frame. The charging port of the battery is located inside the plug cover 13, and this plug cover 13 is attached to the battery case side. That is, when the battery case is pulled out for battery replacement, the plug cover is also pulled out together. The body frame 11 at the position where the plug cover 13 projects from the body frame is notched.

[0005] A cover 15 for opening and closing the charging port is attached to the plug cover 13 so as to be openable and closable, and the cover 15 is locked by a lock 17. Further, a locking structure 20 for securely locking the battery cover 12 to the vehicle body frame 11 is provided so that the battery itself has a safety increasing structure, that is, a locking structure. In addition, 3
Reference numeral 1 denotes a straddle arm extending forward from the vehicle body.

As shown in detail in FIG. 9, the locking structure 20 has a snap lock 21.
The fulcrum portion 22 is fixed to the vehicle body frame 11, and a loop portion 23 formed by bending a wire into a loop before and after sandwiching the fulcrum portion 22 and a lever portion 24 serving as a lever are formed.

[0007] The loop portion 23 is connected to the battery cover 1.
2, while the end of the lever 24 is bent concavely to form a fastening portion 25, and the fastening portion 25 is fixed to the vehicle body frame 11 with bolts 29. ing.

In this conventional configuration, when charging the battery, a key is inserted into the lock 17 of the plug cover 13, the cover 15 is opened, and a charging cable pulled out of the charger is connected to the plug. .

Further, in order to prevent the gas generated during the charging from staying in the vehicle body frame 11, the bolt 29 fixing the fastening portion 25 of the snap lock 21 is removed, and then the lever portion is removed. 24 is pushed up to disengage the loop portion 23 from the hook portion 28, and then the battery cover 12
Is opened to allow ventilation in the body frame 11.

[0010] Of course, after charging the battery,
By performing the reverse operation to the above, the battery cover 12 is fastened to the vehicle body frame 11 by the snap lock 21,
The cover 15 of the plug cover 13 is locked.

[0011]

As described above, in the prior art, when charging the battery, the opening and closing of the cover 15 of the plug cover 13 and the opening and closing of the battery cover 12 must be performed independently. And, the snap lock 21
In order to release the locking by the above, the work of removing the bolt 29 is also required, so that the workability is poor. Similarly, the work of locking the covers 12 and 15 after charging the battery is also troublesome, requiring a lot of trouble.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and can save time and effort in charging a battery and improve workability without impairing the safety and explosion-proof performance of the battery and its surroundings. It is an object of the present invention to provide a battery protection structure.

[0013]

The present invention has the following features to attain the object mentioned above. That is, in the present invention according to claim 1, a battery cover that opens and closes an outlet of a battery housed in the vehicle body with a locking structure,
A cover that opens and closes an opening of the battery, wherein the cover has a cover that opens and closes a charging port of the battery protruding from the frame of the vehicle body with a locking structure;
A cover for opening and closing the charging port is integrally formed.

Thus, when the battery cover for opening and closing the battery outlet is opened, the cover for opening and closing the charging port formed integrally with the cover can also be opened and closed.
That is, unlike the related art, the cover can be opened and closed only once without opening and closing the cover in two separate operations, so that it is possible to save time and effort when charging the battery, thereby improving workability.

According to a second aspect of the invention, there is provided a battery protection structure according to the first aspect, wherein the locking structure comprises:
The snap lock and the cylinder lock are both attached to the body frame, and the snap lock has a hook portion formed by bending the end of the lever portion of the loop portion and the lever portion before and after the fulcrum portion. On the other hand, the cylinder lock is characterized in that a locking piece for locking the hook portion is formed integrally with the cylinder lock.

Thus, when the cylinder lock is rotated,
Since the locking piece formed integrally with this is detached from the hook portion of the snap lock, the lever portion of the snap lock can be easily pushed up. Therefore, unlike the related art, there is no need to loosen the bolt for fixing the lever portion with a wrench or the like, and it is possible to save the trouble of the lock release operation.

According to a third aspect of the present invention, there is provided a battery protection structure according to the first aspect, wherein the locking structure comprises:
A cylinder lock is attached to the vehicle body frame, and a locking piece is formed integrally with the cylinder lock on the cylinder lock, while a locked member that engages with the locking piece is formed on the battery cover. It is characterized by being fixed.

Also in this case, when the cylinder lock is rotated, the locking piece integrally formed with the cylinder lock is detached from the locked member of the battery cover, so that the battery cover can be easily opened. The trouble of the lock release operation can be saved.

A battery protection structure according to a fourth aspect of the present invention is the battery protection structure according to the first aspect, wherein the locking structure comprises:
A cylinder lock is attached to the battery cover. The cylinder lock has a locking piece formed integrally with the cylinder lock, while the vehicle body frame has a slit formed therein for engaging the locking piece. It is characterized by becoming.

Also in this case, when the cylinder lock is rotated, the locking piece integrally formed with the cylinder lock is detached from the slit of the vehicle body frame, so that the battery cover can be easily opened, and the lock release is performed. Operation can be saved.

[0021]

Embodiments of the present invention will be described below in detail with reference to the drawings.

Embodiment 1 FIG. 1 is a perspective view of a reach-type battery forklift as an example of a transport vehicle to which the battery protection structure according to Embodiment 1 of the present invention is applied.

In FIG. 1, reference numeral 1 denotes a vehicle body having a structure for increasing safety and explosion proof, 2 denotes a reach-type fork, 3 denotes a driver's seat,
Reference numeral 4 denotes an operation unit on which various operation levers and devices are arranged, 5 denotes a steering handle, and 6 denotes a head cover.

The vehicle body 1 has a vehicle body frame 11 formed by pressing a steel plate or the like.
A battery (both not shown) serving as a power source for these is housed inside the controller along with various control devices and motors.

FIG. 2 is a perspective view showing a main part of the battery protection structure according to the first embodiment, and FIG. 3 is a perspective view showing a part of the structure taken out. The conventional example shown in FIGS. Are given the same reference numerals.

A battery cover 12 for taking out the battery is hingedly mounted on one peripheral wall surface of a corner of the body frame 11 in which the battery is housed. A notch is formed in a peripheral wall surface orthogonal to the peripheral wall surface on which the battery cover 12 is mounted, and a plug cover 13 protruding from an outer wall surface of the battery case is located. That is, when the battery case containing the battery is pulled out from the vehicle body, the plug cover 13 is also pulled out together with the battery case.

The plug cover 13 is provided therein with a plug for electrically connecting a charging cable to a battery and a charging port 14 for inserting the charging cable into the plug.

On the other hand, a cover portion 32 for closing the charging port 14 of the plug cover 13 when the cover 12 is closed is integrally formed at one end of the battery cover 12 adjacent to the plug cover 13. .

Further, in the first embodiment, a locking structure 33 for securely locking the battery cover 12 to the vehicle body frame 11 is provided in order to increase the safety of the battery itself. In addition, 31 is a vehicle body frame.

The locking structure 33 has a snap lock 21 and a cylinder lock 36, and both the snap lock 21 and the cylinder lock 36 are attached to the vehicle body front side body frame 11. The snap lock 21 has a fulcrum portion 22 fixed to the vehicle body frame 11, and a loop portion 23 formed by bending a wire into a loop before and after sandwiching the fulcrum portion 22 and a lever portion 24 serving as a lever are formed. ing. Then, the hook portion 30 provided on the battery cover 12
The end of the lever 24 is bent into a J-shape in plan view to form a hook 26.

On the other hand, the cylinder lock 36 is mounted in a cylinder lock case 35 and integrally formed with the hook 2.
A locking piece 37 for locking the lock 6 is formed.

In the above configuration, when charging the battery, when a key is inserted into the cylinder lock 36 and the cylinder cover 36 is rotated while the battery cover 12 is locked by the lock structure 33, Since the locking piece 37 formed integrally with the latch 21 is detached from the hook 26 of the snap lock 21, the lever 24 of the snap lock 21 can be easily pushed up. Therefore, it is possible to save the trouble of the lock release operation such as loosening the bolt 29 (see FIG. 9) as in the related art.

When the battery cover 12 is opened after the locking state of the locking structure 33 is released in this manner, the cover 32 formed integrally with the battery cover 12 is accordingly formed.
Since the charging cable 14 is also separated from the charging port 14 of the plug cover 13, a charging cable (not shown) can be connected to a plug inside the charging port 14 through the charging port 14. In other words, unlike the related art, even if the cover is not opened and closed twice, the work can be completed simply by opening the battery cover 12, so that the work for charging the battery can be omitted, and the workability is improved. .

After the battery is charged, the battery cover 12 is locked to the vehicle body frame 11 by the snapping lock 21 and the cylinder lock 36 by performing the reverse operation.
The charging port 14 of the plug cover 13 is simultaneously closed by the cover 32 of the battery cover 12.

Embodiment 2 FIG. 4 is a perspective view showing a main part of a battery protection structure according to the second embodiment, and FIG. 5 is a perspective view showing a part of the structure, taken out from the first embodiment shown in FIGS. Corresponding components are given the same reference numerals.

The feature of the battery protection structure according to the second embodiment resides in the lock structure 40. That is, the locking structure 40 according to the second embodiment includes the vehicle body front side body frame 1.
1, a locked member 41 having a U-shaped flat cross section is fixed to one side of the battery cover 12 close to the cylinder lock case 42.

In the cylinder lock case 42, a locking piece 44 for locking the locked member 41 integrally with the cylinder lock 43 is formed.
A notch 46 is formed in a part of the cylinder lock case 42 that covers the locking piece 44 to allow the locked member 41 to be inserted. Other configurations are the same as those of the first embodiment, and therefore, detailed description is omitted here.

In the second embodiment, when the cylinder lock 43 is rotated from the state in which the battery cover 12 is locked by the locking structure 40, the locking piece 44 formed integrally with the cylinder lock 43 Locked member 4 of cover 12
1, the battery cover 12 can be easily opened.

When the battery cover 12 is opened, the cover 32 formed integrally with the battery cover 12 is also separated from the charging port 14 of the plug cover 13 with the opening, thereby saving the trouble of charging the battery. And workability is improved.

Embodiment 3 FIG. 6 is a perspective view showing a main part of a battery protection structure according to the third embodiment, and FIG. 7 is a perspective view showing a part of the structure taken out.
The same reference numerals are given to the components corresponding to the first embodiment shown in FIG.

The feature of the battery protection structure according to the third embodiment resides in the locking structure 50. That is, in the lock structure 50 of the third embodiment, the cylinder lock case 51 is attached to the battery cover 12, and the cylinder lock case 51 has a locking piece 53 integral with the cylinder lock 52.
Are formed. On the other hand, a slit 54 into which the locking piece 53 is engaged is formed in the vehicle body frame 11 on the front side of the vehicle body frame 11. Other configurations are described in Embodiment 1.
Therefore, detailed description is omitted here.

In the third embodiment, when the cylinder lock 52 is rotated from the state in which the battery cover 12 is locked by the locking structure 50, the locking piece 53 integrally formed with the cylinder lock 52 Since the battery cover 12 is detached from the slit 54 of the frame 11, the battery cover 12 can be easily opened.

When the battery cover 12 is opened, the cover 32 formed integrally with the battery cover 12 is also separated from the charging port 14 of the plug cover 13 with the opening of the battery cover 12, thereby saving the trouble of charging the battery. be able to.

[0044]

According to the present invention, the following effects can be obtained. (1) In the battery protection structure according to the first aspect of the invention, when the battery cover is opened, the cover integrally formed on the battery cover and opening and closing the charging port is opened and closed. That is, unlike the related art, even if the cover is not opened and closed twice, only one operation of opening and closing the cover is required, so that it is possible to save time and effort when charging the battery, thereby improving workability.

(2) In the battery protection structure according to the second aspect of the present invention, when the cylinder lock is rotated, the locking piece integrally formed with the cylinder lock is detached from the hook portion of the snap lock. Lever can be easily pushed up. Therefore, unlike the related art, there is no need to loosen the bolt for fixing the lever portion with a wrench or the like, and it is possible to save the trouble of the lock release operation.

(3) In the battery protection structure according to the third aspect of the present invention, when the cylinder lock is rotated, the locking piece integrally formed with the cylinder lock comes off the locked member of the battery cover. The battery cover can be easily opened, and the trouble of the lock release operation can be saved.

(4) In the battery protection structure according to the fourth aspect of the present invention, when the cylinder lock is rotated, the locking piece integrally formed with the cylinder lock is detached from the slit of the vehicle body frame, so that the battery lock is easily formed. The cover can be opened, and the trouble of the lock release operation can be saved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a reach-type battery forklift as an example of a transport vehicle to which a battery protection structure according to Embodiment 1 of the present invention is applied.

FIG. 2 is a perspective view showing a main part of the battery protection structure according to the first embodiment of the present invention.

FIG. 3 is a perspective view showing a part of the structure shown in FIG. 2;

FIG. 4 is a perspective view showing a main part of a battery protection structure according to a second embodiment of the present invention.

FIG. 5 is a perspective view showing a part of the structure shown in FIG. 4;

FIG. 6 is a perspective view showing a main part of a battery protection structure according to Embodiment 3 of the present invention.

7 is a perspective view showing a part of the structure shown in FIG.

FIG. 8 is a perspective view showing a main part of a conventional battery protection structure.

FIG. 9 is a perspective view showing a part of the structure of FIG.

[Explanation of symbols]

 Reference Signs List 11 body frame 12 battery cover 13 plug cover 14 charging port 21 snap lock 22 fulcrum 23 loop 24 lever 26 hook 33, 40, 50 locking structure 35, 42, 51 cylinder lock case 36, 43, 52 cylinder lock 37,44,53 Locking piece 41 Locked member 54 Slit

Claims (4)

[Claims] 1. A battery cover for opening and closing an outlet of a battery housed in a vehicle body with a locking structure, and a cover for opening and closing a charging port of the battery protruding from a frame of the vehicle body with a locking structure. In the battery protection structure, a cover for opening and closing the battery outlet and a cover for opening and closing the charging port are integrally formed. 2. The locking structure according to claim 1, wherein both a snap lock and a cylinder lock are attached to the vehicle body frame, and the snap lock has a lever portion of a loop portion and a lever portion before and after a fulcrum. The hook portion is formed by bending an end of the cylinder lock, and a locking piece for locking the hook portion is formed integrally with the cylinder lock on the cylinder lock. Battery protection structure. 3. The locking structure according to claim 1, wherein a cylinder lock is attached to the vehicle body frame, and a locking piece is integrally formed with the cylinder lock. 2. The battery protection structure according to claim 1, further comprising a locked portion to be engaged. 4. The locking structure, wherein a cylinder lock is attached to the battery cover, and a locking piece is formed integrally with the cylinder lock, while the locking piece is engaged with the vehicle body frame. 2. The battery protection structure according to claim 1, wherein a slit for entering the battery is formed.