JPH0747218Y2 - Forklift truck fuel cap - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a fuel filler cap for a forklift truck, and more particularly to a fuel cap with a key for preventing theft.

(Prior Art) The fuel cap of a conventional forklift truck is generally provided outside the vehicle body as shown in FIG.

In FIG. 3, a is a forklift truck, b is a fuel tank, and c is a cap.

As described above, the cap c is exposed on the frame outside the vehicle body. As shown in FIG. 4 (enlarged view of P part in FIG. 3), the cap c is a fuel filler welded to the upper surface of the fuel tank b. The upper end of the plug d is of a screw type as shown by e, and the cap c has a structure that can be easily opened and closed.

f is a breather.

(Problems to be solved by the invention) As described above, since the cap is provided so as to project to the outside of the vehicle body of the forklift truck and is a screw-in type, an outsider can easily open the cap.
Often fuel thefts occur.

In order to prevent such theft, the cap may be equipped with a key. However, if the cap with a key is used, the conventional cap cannot be used as it is, and thus needs to be modified.

Especially when modifying a completed vehicle, in order to perform welding,
There are problems such as the danger of ignition of fuel due to fire.

This invention makes it the subject to solve the said trouble.

(Means and Actions for Solving the Problem) The present invention has been made in view of the above points, in which a well-known lock function is incorporated by providing a flesh portion on a cap, and an oblong shape is formed at a lower end portion of the lock. When a plate is provided and the operator rotates the lock with the key, the oval plate is engaged with the relief groove on the threading side of the oil filler port side to lock the cap to the oil filler port, and when removing the cap from the oil filler port Is designed to prevent theft of fuel by a third party other than the operator by rotating the lock with the key in the opposite direction to unlock the lock and allow the cap to rotate freely.

(Embodiment) Next, an embodiment of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 1 is a front view of the main part of the present invention, and FIG. 2 is a top view of the same. In the figure, 1 is a fuel tank and 2 is a cap.

The cap 2 is integrally provided with a padding portion as shown in 3
As shown in the figure, it has a daruma shape when viewed from above.

The padded portion 3 has a height h ₂ which is substantially the same as the height h ₁ of the cap 2 and incorporates a conventionally known lock mechanism as shown by 4. Reference numeral 5 is a key insertion hole, and 6 is a key. An oval plate 7 is attached to the lower end of the lock 4.

On the other hand, reference numeral 8 is a filler plug welded to the upper surface of the fuel tank 1, and a screw portion 9 is provided at the upper end thereof so as to be screwed with the screw portion of the cap 2. Reference numeral 10 denotes a clearance groove in screw processing, and the groove width is set to 1 and the thickness of the oval plate 7 is t.
Then, t <l, that is, the thickness t of the plate 7 is smaller than the width l of the clearance groove 10.

Now, when the operator inserts the key 6 into the key hole 5 and rotates the lock 4 with the key 6, the plate 7 is rotated from the position [I] in FIG. 2 to the position [II] as shown by the arrow X _1. Groove 10
It goes inside and the cap is locked.

Even if the cap body is rotated in this state, the plate 7 cannot rotate because the plate 7 is engaged with the groove 10. Therefore, the third person cannot open the cap and prevents the fuel theft by the third party. It becomes possible.

Next, when the user wants to remove the cap, by rotating the key 6 in the X ₂ direction and returning the plate 7 from the position [II] to the position [I], the plate 7 is disengaged from the groove 10 and the operator removes the cap. It is possible to freely open and close and refuel and inspect fuel freely.

(Effect of the Invention) This invention is constructed as described in detail above, and the known lock function is incorporated in the cap, and the plate at the tip of the lock is simply locked with the escape groove on the screw side of the oil filler side. With a very simple structure, the cap can be locked to prevent theft of fuel by a third party, and the keyed cap does not have to be modified on the filler side as in the past, and is sufficient. It is possible to provide a fuel cap that can easily meet the user's request.

And this device is safe especially when the fuel tank contains fuel.

[Brief description of drawings]

FIG. 1 is a front view of an essential part of an embodiment of the present invention, FIG. 2 is a top view of the same, FIG. 3 is an external view of a vehicle body to which a conventional one is attached, and FIG. 4 is a P part of FIG. FIG. 1 ... Fuel tank, 2 ... Fuel cap, 3 ... Fat part, 4 ...
… Lock mechanism, 6 …… Key, 7 …… Oval plate, 8 …… Oil filler plug, 10 …… Escape groove on screw machining, t …… Oval plate thickness, l …… Oil plug escape Width of groove on processing.

Claims (2)

[Scope of utility model registration request] 1. A flesh part 3 is provided integrally with a fuel cap 2,
A lock mechanism 4 is incorporated in the padded portion 3, an elliptical plate 7 is attached to the lower end of the lock 4, and the lock 4 is rotated by a key 6 so that the plate 7 is filled with an oil filler plug 8 of the fuel tank 1.
Characterized in that the fuel cap 1 is locked with the filler plug 8 by engaging with the relief groove 10 in the threading of
Fuel cap for forklift trucks. 2. The fuel cap for a forklift truck according to claim 1, wherein the thickness t of the oval plate is smaller than the width l of the clearance groove 10 in the threaded processing of the oil filler plug 8.