JPH01229775A - Motor-driven industrial vehicle - Google Patents

Abstract

PURPOSE:To largely open a case as necessary by rotatably supporting the base end of a damper on the inside of a liftable/collapsable hood which closes the top opening of a box-shaped case for housing a storage battery and removably engaging the end of the piston rod of the damper with the case side. CONSTITUTION:In a motor-driven fork lift, a box-shaped case 1 housing a storage battery B is placed on a vehicle body 10, and the upper portion of this case 1 is openably closed by a hood 2 on top of which a driver's seat 11 is placed. In this case, the hood 2 is liftably/collapsably supported via a rotatably supporting means 3 which can be engaged/disengaged with the front wall face of the case 1. The base end of a damper 5 is rotatably supported 41 on a bracket 42 fixed to the inner face of the upper wall of the hood 2, while enabling the interlocking portion 54 on the end of the piston rod 52 of the damper 5 to be housed in the vertical groove 62 of an engaging base 61 fixed to the inner face of the side wall of the case 1. A holding means 7 for holding the piston rod 52 separated from the engaging base 61 is installed on the hood 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an electric industrial vehicle, and more particularly to an electric forklift that facilitates daily inspection and replacement of a battery that is a driving source.

[Conventional technology]? Fi-type forklifts produce less exhaust pollution than engine-driven forklifts, and are especially used in jobs that place importance on the environment. In such electric forklifts, the front edge of the hood that covers the upper part of the box-shaped case housing the battery is pivoted so that it can be opened and closed vertically for daily inspection to observe the battery oil level and the movement of terminals, etc. In preparation for replacing the battery at any time, the pivot portion is detachable so that the hood can be completely removed from the case.

[Problems to be Solved by the Invention] However, since the driver's seat is generally placed on the top surface of the hood, the structure thereof is relatively strong, and it requires considerable effort to open and close the hood. In order to reduce such labor, it is known to interpose a supporting means such as a damper between the hood and the case, but when replacing the battery, it is necessary to completely remove the damper from the connecting part. There is a drawback that the battery replacement work becomes extremely complicated. Therefore, the use of such dampers and the like is currently being postponed, and the problem of reducing the burden on the operator associated with opening and closing the hood has not been resolved at all.
゛The present invention aims to reduce the labor required for daily inspection of the battery through the damper, that is, the H- of the hood, and at the same time improve the structure of the damper device 18N to simplify the battery replacement work. This is a technical issue.

[Means for solving problem i] 'i8 of the present invention'
The rib-type industrial vehicle includes a box-shaped case that stores a battery, a hood that covers the upper part of the case and is pivoted to the cough case via a removable pivot means so that it can be opened and closed vertically, and -i. a damper connected to the upper inner wall of the hood, the other end of which is removably articulated to the side inner wall of the case to bias the hood in the direction of opening; A new configuration is adopted, which includes a tethering means that grasps the vicinity of the other end of the damper that has come loose.

The damper is composed of, for example, a cylinder filled with inert gas and a piston rod that moves inside the cylinder, and when the hood is closed, absorbs and relieves the rotational moment by the compression reaction force of the filled gas, When opening the hood, the compression reaction force exerts an additive effect on the opening effort.

- [Function] ″ Therefore, in the present invention, the case-side articulated end of the damper that contributes to opening and closing of the hood can be attached and detached very easily, and the portion near the detached and opened articulated end is attached to the hood. Since it can be grasped immediately by the mooring means installed on the inner wall, the coupling relationship between the hood and the case by the damper is also canceled at the same time.Then, the detachable pivot means supporting the hood is disengaged, and the hood is removed. Once the battery is removed, the battery can be taken out of the case using punching equipment, and can be quickly replaced with a new battery prepared in advance.

[Example] Hereinafter, an example in which the present invention is embodied in an electric forklift will be described based on the drawings.

Figure 1 shows the entire structure of the 'Fi ribbed forklift. Box-shaped case 1 houses battery B, which is the driving source.
is placed on the vehicle body 10 so that it can be taken out upwards, and the upper part of the case 1 is covered by a hood 2 on which a driver's compartment seat 11 is placed. 12 is a mast, and 13 is a fork.

The structures of the case 1 and the hood 2, which characterize the present invention, will be explained in more detail with reference to FIGS. 2 to 6.

The hood 2 is pivotally supported on the front wall surface of the case 1 via a detachable pivot means 3 so as to be able to open and close vertically, and the pivot means 3 is attached to the front wall of the case 1, as shown in FIG. an abutment 31 fixed to the outer surface of the front wall of the hood 4; an abutment 32 fixed to the inner surface of the front wall of the hood 4 adjacent to the abutment 31;
a pivot pin 34 that is horizontally supported by and can be inserted into a fitting hole 33 of an aligned abutment 32;
A slit 36 is formed in the base 31 to guide the operating rod 35 protruding from the base 31.

The pivoted state of the hood 2 is maintained by inserting the pivot pin 34 into the fitting hole 33, and the pivoted state is released by pulling out the pivot pin 34.

The operating rod 35 is designed to extend through the front wall of the hood 2 so that it can be operated from the outside.

On the inner surface of the earthen wall of the hood 2, near the front side thereof, there is a support shaft 41 in the lateral direction. The base end 53 of the damper 5, which consists of a cylinder 51 filled with inert gas and a piston rod 52, is pivoted to the support shaft 41 so as to be rotatable in a vertical plane. has been done. The piston rod 52 is located near the rear of the inner surface of the side wall of the case 1.
! An articulated stand 61 that removably supports 1 m is fixed to the articulated stand 61 (Fig. 5).
The first vertical 1l that allows the revenue of the transfer section 54 extending in a letter shape
162 and the second which moves around the interference with the piston rod 52.
Vertical grooves 63 are formed to intersect. A mooring means 7 equipped with an elastic gripping piece 71 shown in FIG. 6 is attached to the inner surface of the earthen wall of the hood 2 in order to grip the piston end 52 portion of the damper 5 which has been released from the articulated stand 61. ing. Note that 8 is a buffer member that determines the closed position of the hood 2, and 9 is a handle for opening and opening the hood.

The operation of the above-described embodiment configured in this way will be explained. First, in a state where the hood 2 is pivotally supported on the case 1 via the pivot means 3, when inspecting the liquid tank of the battery B, the tightness of the terminals, etc., hold the handle 9 and open the hood 2. When lifted in the opening direction, the hood 2 pivots about the pivot pin 34 to its fully open position with the assistance of the damper 5.

In other words, the operator can very easily open the hood 2 by simply lifting the handle 9 slightly upward.

By opening the hood 2, the battery B, terminals, etc. stored in the case 1 are inspected, and after the inspection is completed, if the hood 2 is pushed down, the hood is opened by the compressive reaction force of the gas sealed in the damper 5. 2 gently reaches the closed position with the rotational moment being reduced. At this time, the closing impact is also absorbed by the I impact member 8. In this way, the hood 2 can be opened and closed with little effort, and the battery B can be inspected easily.

Next, when replacing battery B, the hood 2 is rotated to the fully open position in the same manner as during inspection to dampen the compression reaction force of the gas sealed in the damper 5, and then the rolling of the end of the piston rod 52 is The portion 54 is removed from the first vertical member 62 of the articulated stand 61. Then, the released piston rod 52 is turned and the vicinity of its end is gripped by the elastic gripping piece 71 of the anchoring means 7 installed on the inner surface of the upper wall of the hood 2 (
(shown in dashed lines in Figure 2).

After that, once the hood 2 is returned to the closed position and the operating rod 35 is operated to remove the pivot pin 34 from the fitting hole 33 of the support base 32, the coupling relationship between the hood 2 and the case 1 is completely released. Be erased.

Then, the hood 2, which was merely covered with a crown, was removed, and the battery B was suspended along with the case 1 using a winch or other lifting equipment 8, without being removed from the vehicle body 10. The new battery storage case 1 is placed in a predetermined position on the vehicle body 10, and the battery replacement is completed.

After replacing the battery, first place the hood 2 in the predetermined position of the case 1 in the reverse order of the above steps, and then press the operating lever 3.
5 to insert the pivot pin 34 into the fitting hole 33 of the support base 32, and then follow the slit 36 and lock the pivot pin 34. In this way, the hood 2 pivotally supported on the case 1 is opened to the fully open position, the piston rod 52 held by the elastic gripping piece 71 of the mooring means 7 is removed, and the rolling portion 54 at the end of the piston rod 52 is reattached. The first length 62 of the articulated stand 61
be inserted into.

After installing the damper 5 in this way, the hood 2 is closed,
If the hood 2 is appropriately locked using a locking device, all work related to battery replacement is completed.

[Effects of the Invention] As described in detail above, according to the present invention, the insertion of the damper makes it easy to open and close the hood, which greatly contributes to reducing the labor required during relatively frequent battery inspections. When replacing the battery from time to time, the damper can be gathered and held on the hood side with a simple operation, and the hood and the hood can be easily removed from the case, making the entire battery replacement work much faster.

[Brief explanation of the drawing]

Fig. 1 is an overall side view of an electric forklift embodying the present invention, Fig. 2 is a vertical sectional side view of an embodiment of the invention without showing the main parts, Fig. 3 is a partially cutaway plan view of the same, and Fig. 4 5 is an enlarged perspective view of the pivot means, FIG. 5 is an enlarged perspective view of the articulated stand, and FIG. 6 is an enlarged perspective view of the anchoring means. 1... Case 2... Hood 3... Pivotal means 5... Damper 61... Articulating stand 7...
・Mooring means 8...Battery

Claims (1)

[Claims] A box-shaped case that houses a battery, a hood that covers the upper part of the case and is pivotally supported to the case via a removable pivoting means so that it can be opened and closed vertically, and one end is attached to the upper inner wall of the hood. a damper that is connected and whose other end is removably articulated to the side inner wall of the case to urge the hood in a direction to open; and the other end of the damper that is installed on the upper inner wall of the hood and detached from the damper. An electric industrial vehicle consisting of a mooring means for grasping the vicinity.