JPH0430779Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention enables the battery cover to be opened and closed using a gas spring with a slight force.
This invention relates to a battery cover opening/closing device for a forklift that can also detect the seating state of a driver.

[Prior Art] In a battery-type forklift, a battery cover is configured to be openable and closable at one end with a hinge or the like in order to facilitate inspection and charging of the battery.

Therefore, when inspecting the battery, the battery cover is pushed up manually.

By the way, a forklift is sometimes provided with a safety device that allows the forklift to travel only when the driver is seated.

In such safety devices, the seat where the driver usually sits is constantly urged upward against the vehicle body using a spring or the like.
The lowering of the seat due to the weight of the driver is detected using a limit switch or the like.

[Problems to be Solved] However, since the battery cover is made of an iron plate and has a sheet attached to its top surface, it is quite heavy. Therefore, there was a problem in that a great deal of force was required to open and close the battery, and daily inspection of the battery was extremely troublesome.

In addition, when installing the above-mentioned safety device, it is necessary to separately install a spring, etc. to elastically support the seat, and when it is added later, there is a problem that the structure is complicated and it takes time to install. .

The present invention was devised to solve the above-mentioned problems, and provides a battery cover opening/closing device for a forklift that can open and close the battery cover with a slight force and can also detect the seating state of the driver. The purpose is to

[Means for Solving the Problems] The present invention provides a battery cover that covers a battery placed on a vehicle body and is attached to the vehicle body with a pin so that it can be opened and closed freely, and the battery cover is tilted around the pin. In addition, a gas spring is provided, which incorporates a tilting arm that can protrude forward of the battery cover, one end of which is pivotally connected to the tilting arm, and the other end of which is pivotally connected to the vehicle body to constantly urge the tilting arm upward. a seat mounting plate with one side resting on the tilting arm, the other side rotatably pivoted on the top surface of the battery cover, and a seat mounted on the top surface; This configuration includes a switch that can detect tilting motion.

[Example] An example of the present invention will be described below based on the drawings. As shown in FIG. 3, the forklift F is equipped with a well-known cargo handling device in front of the main body 1, and
A seat 9 on which a driver sits and a head guard 4 for protecting the driver from objects falling from above are supported by a support 4a.

Further, a battery 2 is placed on the main body 1, and a battery cover 3 is provided to cover the battery 2.
is pivotally attached to an arbitrary location of the main body part 1 with a pin 5 so as to be openable and closable. In addition, in this example, the battery cover 3 is
A column 4 supporting the head guard 4 on the main body 1
Although it is pivoted to a, it is not intended to be limited to this.

FIG. 1 shows a side view of the main parts of the present invention, and the rear end side of the battery cover 3 has a bulging portion 3 that protrudes upward.
a is formed, and the pin 5 is inserted into this internal space.
The tilting arm 6 is pivotally mounted so as to be able to tilt by a predetermined amount.

The tilting arm 6 includes a base 6b and a base 6b.
The rod part 6a protrudes forward from a notch 3b cut out in the front part of the bulging part of the battery cover 3.

Further, one end side of a gas spring 7 is connected to the base 6b of the tilting arm 6, and the other end side is connected to the base 6b of the tilting arm 6.
The tilting arm is rotatably attached to the main body 1, so that the tilting arm is always biased upward.

The seat 9 is attached and fixed to a seat mounting plate 8 rotatably connected to the upper surface of the battery cover 3 with a pin. Further, the rear end side of the seat mounting plate 8 is extended so that it can rest on the rod portion 6a of the tilting arm 6.

Further, as shown in FIG. 2, a contact piece 12 is provided on the side and rear end side of the seat mounting plate 8, and a switch 11 that is turned on and off by the contact piece 12 is connected to the battery cover 3. established in

In this example, a contact piece 12 is separately provided on the side of the seat mounting plate 8, but it is of course possible to use the side of the seat mounting plate 8 itself as the contact piece. .

[Operation] The operation of the present invention configured as described above will be explained.

(1) When opening the battery cover 3, lift the battery cover 3 slightly by hand, and the biasing action of the gas spring 7 will open the battery cover 3 with an extremely slight force, allowing you to inspect the battery 2. be able to.

(2) When the battery cover 3 is in the closed state, the biasing action of the gas spring 7 causes the tilting arm 6 to push the seat mounting plate 8 upward.
As a result, the switch 11 separates from the contact piece 12 provided on the seat mounting plate 8, and the off signal from the switch 11 detects that the driver is not seated.

(3) When the driver sits on the seat 9, the weight of the driver lowers the seat mounting plate 8 as shown by solid lines in FIGS. 1 and 2, and the contact piece 12 turns on the switch 11. This makes it possible to detect that the driver is seated on the seat 9.

(4) Furthermore, when the driver gets off from seat 9,
As the gas spring 7 urges the tilting arm 6 upward again, the tilting arm 6 pushes up the seat mounting plate 8, and the contact piece 12 and the switch 11
is removed, and the switch 11 is turned off. This makes it possible to detect that the driver has alighted from the vehicle.

Therefore, by providing a safety device (not shown), if the driver is not seated, the forklift's travel circuit is interlocked, making it impossible to travel.

[Effects of the invention] With the above-described configuration, the battery cover of the present invention can be opened and closed with extremely little force using the biasing force of the gas spring, making daily battery inspection work extremely easy. .

Furthermore, since the gas spring is also used as a means for pushing up the seat, when it is detected that the driver is seated, the spring for pushing up the seat, which is separately provided as in the past, can be used. There is no need to provide any. Therefore, compared to the conventional system, the number of device parts can be reduced, and modification when retrofitting a safety device is extremely easy.

[Brief explanation of the drawing]

FIG. 1 is a side view of the main parts of the present invention, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a side view of a forklift equipped with the present invention. 1...Main body, 2...Battery cover, 3...Battery cover, 5...Pin, 6...Tilt arm, 7...
...Gas spring, 8... Seat mounting plate, 9...
Seat, 11... switch.

Claims (1)

[Scope of utility model registration request] A battery cover that covers a battery placed on the vehicle body is installed on the vehicle body so that it can be opened and closed using a pin, and within the battery cover there is a tilting arm that can tilt around the pin and protrude forward of the battery cover. A gas spring is provided, one end of which is pivotally connected to the tilting arm, the other end of which is pivotally connected to the vehicle body to constantly bias the tilting arm upward, and one side of which is placed stationary on the tilting arm. and a seat mounting plate whose other side is pivotably connected to the upper surface of the battery cover and having a seat attached to the upper surface thereof, and a switch capable of detecting the tilting movement of the seat mounting plate. Forklift battery cover opening/closing device.