DE627419C - Filling and drainage cap with reserve fuel valve for fuel tanks of motor vehicles - Google Patents

Description

The invention relates to a filling and drainage closure for motor vehicles which the Abflußversehluß is designed as a valve for removing reserve fuel. A flexible connecting piece is inserted between the filling and drainage seals, that by actuating a lockable The push button on the lid of the filler cap controls the drain valve. That ίο flexible connector consists of two spiral hoses that are plugged into each other, and of which the inner spiral hose is the compressive or tensile forces when the Push button on the Eiinfiülverschluß such after the closure transfers that in one position of the push button the fuel with a normally filled container flows through the drain plug to the carburettor and in the second position the drain plug the withdrawal of the reserve fuel is permitted. In a third position the commitment is completely closed.

In Figs. 1 to 9, the invention is shown.

Fig. Ι and 2 shows the filler cap in section.

Fig. 3 shows the filler cap in a plan view in section.

Fig. 4 shows the drainage closure in section and

Fig. 5 the drain plug in cross section.

Fig. 6 shows the cover with the keyholes from the front.

Fig. 7 shows the lock case in section and top view, in whose grooves the sliding Lock bolt are inserted.

Fig. 8 shows the key,

Fig. 9 the lock bolt.

In Fig. Ι D ^{[1 is} a metal disc to which the lock case Sch ¹ (Fig. 3) and the bushing E ¹ (Fig. 1) are attached. Cover D and disk D ¹ are firmly connected to one another.

According to Fig. 2, the tank insert E is firmly connected to a pipe section R}. The outer steel wire hose W ^{2 is} soldered in R}. If the insert E is screwed or soldered to the container, the steel wire ^{hose 2} connected to E is inserted into the interior of the container in such a way that the lower end of the hose comes out of the drainage hole in the bottom of the container. The hose is now turned into the threaded hole of the drainage connection B and this is then pushed into the container lodh until it stops and soldered tightly to the container bottom. This connection of the filling and drainage closure is reliable without the shape and size of the container or the position of the closures to one another having to be taken into account. The steel wire loop, which is freely movable in the container, sticks its position by itself, since "no fastening" in the container is necessary.

After completion. ^, The connection will be

the steel wire rod W ¹ , to which the bushing B ^{1 is} attached, is inserted into the hose W ² (Figs. 4 and 2) so that the bushing attached to it rests in the socket B and the upper end of the hose has the guide pin S ^ ¹ ( Fig. 2) touched, but not off

its location. -. .

If the container is filled with fuel and both locks are not locked, the lock can be opened in this position without a key. To do this, pulling up the head K overcomes the spring pressure of the ribbon spring / ⁷³ and thereby ^{pulls the guide pin Si 1} out of the hole of the insert E (Fig. 2). In this position, the fuel flows through the holes D into the annular groove N ^{3 of} the sleeve B ¹ (Fig. 4) and from here into the vertical channels // ⁴ (Fig. 5) the discharge pipe line ⁴ and to the carburetor. _r

With the setting just described, the reserve drainage holes L? closed by the sleeve B ¹ (Fig. 4 and 5). Is the fuel used up so far that the drainage through the high holes /. ¹ no longer occurs, the motor stops. The driver now brings the reserve fuel to the drain by using the appropriate key while overcoming the springs F {Fig. Brings 2 and 3), the ^v Sehl'oßriegel R (Fig. 9 and 3) in the situation that the grooves N ² and N ¹ of the Sdhloßriegel with the Spierxlappen Sp, Sp ¹ of the Druckkadpfes K (fig. 1 and 3) in lie in a straight line. As a result, the button K can be depressed so far that the locking tabs S \ p come to stand under the lock bolt. -This setting remains because the lock bolt /? be pushed forward again by the springs / ⁷ , whereby the locking tabs Sp are no longer stuck above, but under the lock bolts R. The vertical pressure on button K is transmitted through the movement of the cam®, / V in the horizontal direction to the displaceable pin St ³ , hose W ¹ and the bushing 5 ^l (Fig. 4), overcoming the spring force F ¹ (Fig. 4). As a result, the annular groove N ^{3 is in} front of the reserve holes L? .posed. The outlet through the holes L ² now has a connection through the annular groove N ³ with the vertical channels N ⁴ to the carburetor (Figs. 4 and 5).

If the key is to be used for complete locking, the push button K must be pressed into the lowest position. As a result, the bushing B ^{1 is} pressed onto the sealing ring K ¹ (Fig. 4), in which it is stuck, since the locking tabs Sp ^{1 are} not locked over but under the bolts R. A double shut-off of the outflow can thus be achieved, and fuel can be removed from the container, even if the cone with the sealing ring K ^{1 is} unscrewed.

When the drain is blocked, the joint lock is also blocked at the same time because the pin Si ^{1 is} deep in the guide hole and cannot be pulled out.

-r,.

Claims (3)

Patent claims: 1. Filling and drainage closure, which are coupled to one another by connecting elements, for fuel containers of motor vehicles, characterized in that the drainage closure (B) is designed as an extraction valve for reserve fuel, and that between the filling - and drainage closure (D, B) a flexible one. Connecting piece (W ¹ ) is interposed, so. that by means of a lockable push button (K) on the filler cap (D) the drain valve can be set in different working positions. 2. Embodiment according to claim 1, characterized in that the flexible connecting piece consists of two nested spiral hoses (W ¹ , W ² ) ; 3 .. embodiment according to claim 1 and 2, characterized in that in the blocking position of the drain plug, the lower edge of the sleeve (B ¹ ) is pressed onto a sealing ring (K). 1 sheet of drawings Berlin, printed in the öer