JPH0737565A - Mounting structure for battery - Google Patents

Abstract

PURPOSE:To easily lift a battery from a battery case and carry the battery and the case together in the case of work for removing the battery. CONSTITUTION:A leaf spring 9 of V-shaped section serving as an elastic means, engaged with a lower surface in a part dislocated from the center of gravity of a battery 1; is provided in an opening 4c of a battery case 4 for mounting the battery 1. When a means for fixing the battery 1 onto the battery case 4 is released, since a clearance is formed under the battery by automatically lifting upward the battery 1 tilted by the leaf spring 9, the battery can be clamped surely from the downward by inserting hand into the clearance. In the elastic means, a coil spring, leaf spring of a V-shape, etc. may be used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery fixing device mainly mounted on a vehicle such as a forklift, and more specifically, a battery mounting structure capable of easily removing a battery mounted on a vehicle body. It is about.

[0002]

2. Description of the Related Art Vehicles such as forklifts are used for starting, igniting, controlling, etc. of the engine, or for lighting up lights and signs, and in some cases for supplying electric power to a traction motor. As a power source for various purposes and targets, a rechargeable secondary battery (usually called a "battery") typified by a lead storage battery is mounted. The battery is generally installed in the engine hood or the lower part of the vehicle body.

FIG. 6 exemplifies a mounting structure conventionally used for mounting the battery on a vehicle body. 1 is a rectangular parallelepiped type battery, and 2 is a number provided on an upper surface for replenishing battery liquid. A liquid injection plug 3 screwed into each liquid injection port indicates a terminal composed of two anodes, an anode and a cathode, which are also provided on the upper surface. Reference numeral 4 denotes a shallow box-shaped battery case that is attached to the vehicle body (not shown) and has an open top surface. It functions as a frame for positioning the battery 1 so that it does not shift laterally when placed. is there. Reference numeral 5 is a support rod having a male screw portion 5a formed at one end and a hook portion 5b formed at the other end.
It is prepared together with the angle-shaped cover plate 6 that comes into contact with one shoulder portion of the battery 1 in the upper longitudinal direction.

The hook portion 5 of the two support rods 5
b a pair of ear pieces 4 attached to the battery case 4
The battery 1 is inserted into the holes of a and engaged with each other, while the male screw portions 5a are inserted into the holes 6a at both ends of the cover plate 6 and tightened by using the washers 7 and the nuts 8, respectively. Case 4
It is fixed to the vehicle body by pressing it on one side above. As another conventional example, instead of the angled cover plate 6, a narrow plate piece that can hold a portion without the liquid injection plug 2 or the terminal 3 on a part of the upper surface of the battery 1 is used. Instead of hooking the hook portion 5b of the support rod 5 on the ear piece 4a or the like of the battery case 4, a piece of the ear piece 4a may be formed on a part of the vehicle body and hooked on the ear piece 4a. Rod 5 is nut 8
It is the same that the battery 1 is fastened on the battery case 4 by such a fixing means.

[0005]

The battery is usually
It is very heavy to support with human hands,
It contains battery fluid such as dilute sulfuric acid that leaks and adheres to other things, such as corrosion of metal, so careful handling is required to prevent it from being overturned or broken. Nevertheless, the container is often a rectangular parallelepiped formed of a synthetic resin or the like with a smooth surface, and is usually not provided with a recess or the like that may be a clue when lifting. Therefore, when the battery 1 is replaced or the like, the nut 8 screwed on the male screw portion 5a of the support rod 5 is loosened, the cover plate 6 is removed from the battery 1, and then the battery 1
In order to lift the battery from the battery case 4, there is no choice but to sandwich the side surface of the battery 1 with both hands and lift the battery 1 while supporting the weight of the battery 1 by the frictional force of the surfaces of the hands, so a considerable force must be applied to the arm. .

After pulling up the battery 1 from the battery case 4, in order to securely grasp the battery 1 so as not to drop it and carry it to another place, it is necessary to change hands and try to put a hand on the lower surface of the battery 1. Then, the battery 1 lifted only by the frictional force on the surface of the hand is once lowered to a safe place, and the tip of the other hand is inserted under the battery 1 while tilting the battery 1 with one hand, or
Finding a place where there is a protrusion and placing the protrusion 1 as a pillow and placing the battery 1 at a slight angle, and inserting the tip of your hand into the gap below the battery 1 formed by it and lifting it again. Since it is necessary to take a troublesome procedure, and at that time, the battery 1 may be knocked down and the battery fluid may leak out, the replacement of the battery 1 requires a considerable amount of physical strength and meticulous attention, and it is troublesome to carry it. This is a work that requires a step, and imposes a lot of burden on a weak worker.

The present invention addresses such a problem that occurs when removing a battery by the conventional battery mounting structure, and the battery after removing the cover plate and the like can be easily removed from the battery case by a powerless worker. It is an object of the present invention to provide a novel mounting structure for a battery that can be lifted up to the outside and can be safely transported to another place without the need to change hands. This is an issue.

[0008]

As a means for solving the above-mentioned problems, the present invention engages with the bottom of a battery case for mounting a battery on the lower surface of the portion of the battery that is out of the center of gravity. Then, there is provided a battery mounting structure comprising elastic means capable of pushing the battery upward and inclining it when the means for restraining the battery on the battery case is released.

[0009]

When the battery is removed from the battery case, the means for restraining the battery on the battery case is released, and the elastic means engaged with the lower surface of the part of the battery that is out of the center of gravity tries to return to its original shape. , Push the battery upwards and tilt it to one side. This creates a gap between the bottom surface of the battery and the top surface of the battery case, so you can insert your hand into the gap, place your hand on the bottom surface of the battery, and securely grasp and lift the battery to compare. The battery can be easily lifted from the battery case with a small force.

[0010]

1 to 3 show a first embodiment of the present invention. In these figures, as in the conventional example shown in FIG. 6, 1 is a battery, 2 is a liquid stopper, 3 or 3a and 3b are terminals,
Reference numeral 4 is a battery case having ear pieces 4a, 5 is a support rod having a male screw portion 5a and a hook portion 5b, 6 is an angle-shaped cover plate, 7 is a washer, and 8 is a nut. In this case, notches 4b are formed on the upper edges of both end walls in the longitudinal direction of the battery case 4 to facilitate the insertion of the hand.

The feature of this embodiment is that the battery case 4
The cross section is V in a state where no force is applied (released state) or a force of a predetermined magnitude or less is applied so as to be located in the window-shaped opening 4c formed at the bottom of the
A leaf spring 9 having a bent shape is placed, and the lower side 9a of the leaf spring 9 is welded, screwed, riveted, or the like on the surface of a stand (not shown) on the vehicle body side that supports the battery case 4. It is fixed by.

Therefore, in the normal state, the battery 1
Is mounted on the battery case 4,
As shown in FIG. 2, part of the lower surface of the battery 1 strongly presses the upper side 9b of the leaf spring 9 downward due to the combined force of the weight of the battery 1 and the fastening force (screw attachment force) of the nut 8 to the support rod 5. Therefore, the V-shaped bent portion of the leaf spring 9 is elastically deformed so that the upper side 9b overlaps the lower side 9a, so that the entire leaf spring 9 is placed in the battery case 4 inside the opening 4c.
Is below the height of the bottom of the. Thereby, the battery 1 is completely seated on the bottom surface of the battery case 4 and is stably supported. In addition, when the overlapping leaf springs 9 cannot be accommodated only by the thickness of the bottom of the battery case 4, an appropriate gap is provided between the battery case 4 and the stand on the vehicle body side to which it is attached, or A shallow depression is provided on the platform on the vehicle body side.

When it is necessary to remove the battery 1 from the vehicle body, for example, when replacing the battery 1, the nut 8 is rotated by rotating the nut 8 with respect to the male screw portion 5a of the support rod 5 to release the tightened state. As a result of the disappearance of the fastening force, the force for restraining the leaf spring 9 is only the weight of the battery 1, so the leaf spring 9 opens in a V shape as shown in FIG. 3, and its upper side 9b is away from the center of gravity of the battery 1. Push up the bottom surface of the part that is far away. As a result, most of the lower surface of the battery 1 is separated from the bottom surface of the battery case 4, and the battery 1 is tilted at an appropriate angle. In this case, if the battery 1 is pushed up excessively, it will fall and it will be dangerous. Therefore, the shape, size, and elasticity of the leaf spring 9 will be affected by the above-described action.
So that it can be tilted at an appropriate angle,
It goes without saying that it is set appropriately in advance.

When the cover plate 6 is removed from the top of the battery 1 and the battery 1 is tilted as shown in FIG. 3 by pushing up the upper side 9b of the leaf spring 9, at the position of the notch 4b of the battery case 4, A gap G is formed between the lower surface of the battery 1 and the upper surface of the battery case 4 so that both hands can be inserted. Therefore, if the left and right hands are inserted into the gap G and the lower surface of the battery 1 is raised and lifted, the heavy battery 1
, And even a relatively weak person can easily lift it, and since both hands are hooked on the lower surface of the battery 1 and the grip is reliable, it is not necessary to change hands as it is and the battery Since 1 can be carried to a desired place, there is no need to change hands.
In addition, the possibility that the battery 1 will be fallen down during the lifting or transportation or the battery liquid will be leaked by being dropped off or the battery 1 will be damaged is extremely reduced.

FIG. 4 shows an essential part of the second embodiment of the present invention.
In the first embodiment of the present invention shown in FIGS. 1 to 3, the leaf spring 9 having a V-shaped cross section is used as the elastic means, but in the second embodiment, the coil spring 10 wound in a conical shape is used. It is used as an elastic means instead of the spring 9. That is, as shown in FIG. 4, a rectangular lower side plate 11 and an upper side plate 12 are prepared, and complementary notch portions (not shown) formed at respective one ends of the rectangular side plates 11 and 12 are coupled to each other so as to connect the both sides. The pins 13 are inserted into the bearings by rolling the ends of the plates 11 and 12 which are connected to each other to form a hinge in which the upper side plate 12 is pivotally attached to the lower side plate 11 to form a coil spring. 10
The large diameter portion 10a and the small diameter portion 10b are joined to the lower side plate 11 and the upper side plate 12 by a method such as welding and used as the elastic means. The lower side plate 11 may be fixed on the base of the vehicle body, or in some cases, when the battery 1 is placed on the battery case 4 without particular positioning, an assembly of elastic means as shown in FIG. The purpose can be sufficiently achieved only by inserting the battery into the opening 4c of the battery case 4.

In this case, the use of the upper side plate 12 prevents the small-diameter portion 10b of the coil spring 10 from directly contacting the lower surface of the battery 1, so that the lower surface of the container of the battery 1, which is generally made of synthetic resin, is damaged. Such a fear is eliminated, and the lower side plate 11 can be used for stabilization, and the elastic means including the lower side plate 11, the upper side plate 12, and the coil spring 10 is laterally arranged between the battery 1 and the battery case 4. There is no risk of falling down, and the lower side plate 11 operates stably and reliably as an elastic means without fixing it to the vehicle body.

Proceeding further, the lower side plate 1 in the second embodiment
1. The large diameter portion 10a of the lower end side of the coil spring 10 is directly fixed on the base of the vehicle body without using 1 or the upper side plate 12, and the small diameter portion 10b of the upper end side is projected upward from the opening 4c of the battery case 4. Even if only the lower surface of the battery 1 is brought into contact with the leaf spring 9 of the first embodiment,
Alternatively, the object of the present invention can be sufficiently achieved by the same operation as that of the elastic means assembly of the second embodiment. In this case, the coil spring 10 need not be conical,
The coil spring 10 may be cylindrically wound as long as a gap is provided between the bottom surface of the battery case 4 and the base of the vehicle body to which the battery case 4 is attached or a recess is formed in the base.

FIG. 5 shows the essential parts of a third embodiment of the present invention. This example is characterized in that elastic means having an inverted V-shaped cross section is integrally formed with the battery case 4. That is, an opening 4d having an appropriate size and shape is formed at the bottom of the battery case 4, and a tongue piece 4e is formed as a cutout of the opening 4d so as to occupy a part or substantially all of the opening 4d. In the vicinity of, it is given a shape that bends upward in the reverse direction. However, it may be a part of an arc shape that is in contact with the bottom surface of the battery case 4, for example, instead of the inverted shape. In any case, the tongue piece 4e in this case is formed by cutting and raising a part of the bottom portion of the battery case 4. Needless to say, in this example, the free end of the tongue piece 4e, which is an elastic means, engages with the lower surface of the portion of the battery 1 which is out of the center of gravity. Note that FIG.
2, the pair of holes 4f formed in a part of the side wall of the battery case 4 is for hooking the hook portion 5b of the support rod 5 similarly to the ear piece 4a shown in FIG.

In the third embodiment, when the tongue piece 4e is formed by cutting and raising a part of the bottom of the battery case 4, the battery case 4 needs to be made of an elastic material such as a steel plate. Only the tongue piece 4e as an elastic means is manufactured as a spring having an inverted cross section or a shape close to that by an elastic material, and one end thereof is fixed to the battery case 4 by means such as screwing, welding or riveting. In this case, the material and thickness of the battery case 4 can be freely selected regardless of the tongue piece 4e. It is not necessary to explain that the tongue piece 4e, which is the elastic means in the third embodiment, basically has the same operation and effect as those of the first embodiment. When the tongue piece 4e is made of a material different from that of the battery case 4, it is not necessary to form the opening 4d. Therefore, the battery case 4 is made as a bottomed piece, and a recess is formed at the position of the tongue piece 4e. If the tongue piece 4e is prevented from projecting from the bottom surface by a method such as forming, the bottomed battery case 4 serves as a tray for catching the battery liquid even if it leaks from the battery 1.

[0020]

As described above, when the battery is removed from the battery case, it is possible to hold the battery securely by holding the battery in the gap automatically formed between the lower surface of the battery and the upper surface of the battery case. So
You can safely remove the battery with a relatively small force. Further, the removed battery can be safely and easily transported to a desired place without having to change hands.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a side view showing a fixed state of the battery in the first embodiment.

FIG. 3 is a side view showing a released state of the battery in the first embodiment.

FIG. 4 is a side view showing a main part of the second embodiment.

FIG. 5 is a perspective view showing a main part of the third embodiment.

FIG. 6 is a side view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Battery 4 ... Battery case 4b ... Notch 4c, 4d ... Opening 4e ... Tongue piece 5 ... Support rod 6 ... Cover plate 8 ... Nut 9 ... Leaf spring with V-shaped cross section 10 ... Coil spring

Claims (7)

[Claims] 1. When the means for restraining the battery on the battery case is released by engaging the bottom surface of the battery case on which the battery is placed with the bottom surface of the portion deviated from the center of gravity of the battery. The battery mounting structure, further comprising elastic means capable of pushing the battery upward to incline it. 2. The battery mounting structure according to claim 1, wherein the elastic means is separate from the battery case. 3. The battery mounting structure according to claim 1, wherein the elastic means is integral with the battery case. 4. The battery mounting structure according to claim 1, wherein the elastic means is provided in an opening formed in the battery case. 5. The battery mounting structure according to claim 1, wherein the elastic means is formed by a V-shaped or inverted V-shaped leaf spring. 6. The battery mounting structure according to claim 1, wherein the elastic means is formed by a coil spring. 7. The battery case is formed with a notch for inserting a hand in an upper edge of an end wall of the battery case.
Attached battery mounting structure.