JPH0214923A - Cock for filler hole in fuel tank for vehicle - Google Patents

Abstract

PURPOSE:To make a cover possible to be opened or closed automatically by joining each end of plural lines of arms, making a cock range to a cylindrical peripheral wall part with an opening, together on a bottom wall, installing a freely rockable cover in this opening, and closing the opening in a normal condition via a spring. CONSTITUTION:A spring member 40 is formed with a guide rod 43, whose one end is pivotally supported on a cover part 3 in extending or contracting a spring 4 in the constant direction, and a guide cylinder 44 whose end is pivotally supported on a bottom wall 16. The guide rod 43 is formed so as to be slidden in the guide cylinder 44, and that the spring 4 is attached to the circumference of this spring member 40, whereby it is energized so as to maintain the cover part 3 in closure in a normal condition. A filter net 6 is being attached so as to cover the whole open part below a peripheral wall 14.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a filler stopper in a fuel tank for a vehicle, and more specifically, to a system that automatically opens and closes a lid provided at the opening of the stopper. This relates to the stopper.

[Prior Art] To supply fuel such as gasoline or heavy oil to a tank installed in a vehicle, the cap N cover of the filler port of the fuel tank must be opened using a key, or the cap N lid must be opened by operating from the driver's seat. After unlocking the cover, I opened the filler cap and poured fuel.

[Problem to be solved by the invention]

In the case of such conventional systems, each time fuel is injected into the fuel tank, it is a hassle to remove the fuel tank cap and insert the oil filler nozzle, and in some cases, the user may forget to close the cap after filling the fuel. There were also safety issues.

[Means to solve the problem]

In view of the above-mentioned problems, this invention is designed so that when supplying fuel to a fuel tank, the lid is opened simply by pushing the oil filling nozzle into the lid of the stopper, and when filling oil from a drum or the like, the lid is opened. It is an object of the present invention to provide an inlet stopper that prevents foreign matter from entering the fuel tank.

FIG. 1 shows the basic inlet stopper of the present invention. In the figure, numeral 1 represents the entire plug of the present invention, and this plug 1 is attached to a fuel tank 2 of a vehicle. The specific structure of this stopper will be explained as follows.

Reference numeral 11 denotes a holding frame for the stopper, which has a flange-like mounting portion 12 at its upper portion and a circular opening 13 formed immediately below the mounting portion. Further, the attachment side of the holding frame 11 is formed by a cylindrical peripheral wall part 14, and three arms 15 that expand radially from the middle of this peripheral wall part form a bottom wall 16 at the center of the lower base. They are joined together to form the entire holding frame into a rigid body. In addition, a U-shaped protrusion 17 is formed on the peripheral wall 14 immediately below the opening 13.
is formed.

Reference numeral 3 denotes a lid portion, which is formed by a circular lid 31 and a hinge portion 32 connected to the lid 31, and the hinge portion 32 is swingably attached to the U-shaped protrusion 17 via a pin 33. ing. The lid 3 also has a tension spring 4 whose ends 41 and 42 are fixed to the lid 3 and the bottom 16, respectively.
Under normal conditions, the opening 13 is closed.

[Effect]

A detailed explanation of the present invention will be given below with reference to FIG.

Fig. 2 is an explanatory diagram when the lubrication nozzle 5 is inserted into the fuel tank 2, and the lid 3 shown in chain lines is the nozzle 5.
When the nozzle 5 is forcibly inserted into the opening 13', the nozzle tip @51 swings the lid 3 inward to the tank, and the nozzle 5 is inserted into the fuel tank 2 through the opening 13'.

When the nozzle 5 is pulled out after completion of oil filling, the lid 3 returns to the chain line position and closes the opening 13'.

(Example) An example of the present invention is shown in FIGS. 3 and 4,
FIG. 1 mentioned above with the drawing numerals in the same figure.

The same reference numerals as those in FIG. 2 represent members having the same effect.

In FIG. 4, reference numeral 40 denotes a spring member for expanding and contracting the spring 4 in a certain direction, and is formed by a guide rod 43 whose one end is pivoted to the lid 3 and a guide tube 44 whose end is pivoted to the bottom wall 16. has been done. The guide rod 43 is formed to slide within the guide tube 44, and the spring 4 is connected to the spring member 4.
0 and is biased so as to maintain the lid portion 3 in a closed state under normal conditions. In addition, 45.46
represents a pivot pin. Further, reference numeral 35 indicates a sealing material attached to the periphery of the lid 31.

Reference numeral 6 represents a filter net, which is attached so as to cover the entire open portion below the peripheral wall 14.

Reference numeral 7 denotes a guide bank for the purpose of guiding the oil nozzle and protecting the lid portion 3, and is formed of a donut-shaped hollow body.

Reference numeral 8 denotes a protective lid that rotates via a pivot pin 82 and is connected to a key 8.
Locked and unlocked by 0. Note that 81 indicates a lock member.

FIG. 4 is an explanatory view of the operation of the embodiment. As is clear from the figure, when the protective lid 8 is released and the oil nozzle 5 is inserted into the stopper 1, the lid part 3 is moved inside with the bottle 33 as a pivot axis. The nozzle 5 is inserted into the tank.

At this time, a guide rod 43 and a guide tube 44 forming the spring member 40
are tilted in the same direction about their respective pivot shafts 45 and 46, and the spring 4 attached thereto is also tilted in the same direction while being biased in the compression direction. In this case, the lengths of expansion and contraction of the two members 43 and 44 are adjusted by the sliding movement of the guide rod 43 within the guide tube 44.

When the nozzle 2 is pulled out after completion of oil filling, the lid 3 completely closes the opening due to the restoring force of the spring 4.

(Effects of the Invention) This invention provides a lid portion 3 that normally closes the opening of the stopper.
Therefore, the fuel in the fuel tank is always kept sealed, so there is no fuel leakage when the vehicle is running.

In addition, when filling fuel, you can perform the lubrication work by simply inserting the lubrication nozzle into the spigot opening, and when the lubrication nozzle is pulled out after lubrication, the lid automatically closes the opening. There is no need to perform occlusion measures.

Particularly, in the case of the embodiment of the present invention, the following unique effects are produced.

Since a telescopic spring member is provided for the closing spring of the lid, the spring member absorbs the pressing force against the lid that occurs when opening and closing the lid due to sudden compression of the nozzle tip. It is always tilted in the same direction so that the closing function is not deteriorated.

Furthermore, since m1A is provided at the opening of the stopper, when the engine is supplied with oil from the inside of a fuel tank such as a drum, the stopper can filter out impurities from the inside of the drum and supply clean oil.

Furthermore, since a guide ring is provided at the opening of the top stopper, it is easy to push the nozzle in, and since there is a space between the top cover and the opening end, there is no possibility of accidentally opening the cover by other utensils.

Further, in the present invention, by providing a protective cover at the open end of the guide ring, which cannot be opened or closed except by a key, the safety of the cover can be further improved.

[Brief explanation of the drawing]

FIGS. 1 and 2 are sectional explanatory views of essential parts showing the basic structure of the present invention, and FIGS. 3 and 4 are sectional explanatory views of essential parts showing an embodiment of the invention. 1: Plug 3 of this invention; Lid member 5: Lubrication nozzle 7: Guide ring 11: Holding frame 15: Arm 31: M: Fuel tank: Spring: Filter net: Protective lid: Peripheral wall: Bottom wall: Hinge portion 33: Bin 40: Spring member: Both ends of spring 43: Guide rod 44: Guide tube

Claims (2)

[Claims] (1) In a stopper for an inlet of a vehicle fuel tank, the stopper is connected to a cylindrical peripheral wall portion having an opening and the ends of a plurality of arms connected to the peripheral wall portion at the bottom wall, and the opening 1. A stopper for an inlet in a fuel tank for a vehicle, characterized in that a swingable lid is provided at the top, and the lid is configured to normally close the opening via a spring. (2) An inlet plug for a fuel tank for a vehicle, characterized in that the inlet stopper according to claim 1 is provided with a filter net having an open end sealed in a peripheral wall portion.