JPH0434099Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to a fuel supply hose for supplying fuel to a fuel tank installed in a vehicle.

[Conventional technology]

A fuel supply hose connects a fuel supply pipe installed facing the outer surface of a vehicle body and a fuel tank to form a fuel supply path. As such a fuel supply hose, one in which an air vent pipe is fitted and connected to the outer periphery of a fuel supply pipe from which it branches is conventionally known (see the conventional example in Japanese Utility Model Application Publication No. 60-62327).

[Problem that the invention attempts to solve]

However, in the above-mentioned conventional example, since there is no positioning means for connecting the fuel supply hose to the fuel supply pipe in the longitudinal direction, variations in the insertion distance tend to occur.
Furthermore, since there is no means for positioning the two in the circumferential direction, there is a problem in that the fuel supply hose is likely to be twisted. Of course, if markings are applied, the above-mentioned variations in the insertion distance and twisting of the fuel supply hose can be prevented, but in this case, the problem arises that it takes time to match the marks, reducing work efficiency. Therefore, the object of this invention is to provide a fuel supply hose that can be reliably connected to a fuel supply pipe without variation in insertion distance or twisting of the hose, and with good workability.

[Means to solve the problem]

For this purpose, this invention provides a fuel refueling hose that is fitted and connected to the outer periphery of the lower end of the fuel refueling pipe where the air vent pipe branches, and a notch into which the air vent pipe fits is provided on the end surface of the connection to the fuel refueling pipe. It is characterized by the fact that it has been formed.

[Effect]

By inserting the fuel supply hose into the fuel supply pipe until the notch fits and abuts the air vent pipe, the fuel supply hose is positioned with respect to the fuel supply pipe in the longitudinal direction of the connection and in the circumferential direction.

【Example】

This invention will be explained below based on an embodiment shown in the drawings. In FIG. 1, reference numeral 1 indicates a fuel supply pipe, and 2 indicates a fuel supply hose. The fuel supply pipe 1 is connected to a cap 11 at a fuel supply port facing the outside of the vehicle body (not shown).
A ring protrusion 12 for preventing the hose from coming off is formed at the pipe opening on the opposite side. An air vent pipe 13 branches off at a position slightly opposite to the cap 11 in the longitudinally intermediate portion of the fuel supply pipe 1. This air vent pipe 13 is formed by fitting and connecting a hose to one end 14a of an elbow pipe 14, and the other end 14b of the elbow pipe 14 is connected to the fuel supply pipe 1 so as to protrude at right angles from its outer peripheral surface. There is. The fuel supply hose 2 has one end connected to a fuel tank (not shown), and the other end fitted onto the outer periphery of the fuel supply pipe 1 from the ring protrusion 12 side and tightened and fixed by a band 3. Ru. Here, as shown in FIG. 2, the fuel supply hose 2
An arcuate notch 22 is formed in the tip surface 21 of the other end by injection molding. This notch 22 forms an arc into which the outer periphery of the elbow pipe 14 of the air vent pipe 13 fits, so that the fuel supply hose 2 can be positioned in the longitudinal direction and the circumferential direction. Therefore, the fuel supply hose 2 for the fuel supply pipe 1
When connecting, the fuel supply hose 2 is inserted into the fuel supply pipe 1 until the notch 22 abuts and fits into the other end 14b of the elbow pipe 14 of the air vent pipe 13. By doing this, the fuel supply hose 2 is positioned with respect to the fuel supply pipe 1 in the longitudinal direction and the circumferential direction of the connection, and the fuel supply hose 2 is inserted into the fuel supply pipe 1 without variation in insertion distance or twisting. connected to.

[Effect of the idea]

As explained above, according to this invention, by inserting the fuel supply hose into the fuel supply pipe until the notch fits and hits the air vent pipe, the fuel supply hose can be attached to the fuel supply pipe in the longitudinal direction and in the circular direction. Positioned in the circumferential direction. Therefore, the fuel supply hose can be connected to the fuel supply pipe without variation in insertion distance and without twisting. Moreover, since the above positioning work is performed by hitting the fuel supply hose against the air vent pipe, the workability is better than the conventional mark alignment. Furthermore, the cost is low because only the additional processing required to provide a notch is required.

[Brief explanation of drawings]

FIG. 1 is a front view of a main part showing an embodiment of this invention, and FIG. 2 is a partially enlarged view of FIG. 1 showing the shape of a cutout of a fuel supply hose. 1... Fuel supply pipe, 11... Cap, 12...
...Ring protrusion, 13...Air vent pipe, 14
...Elbow pipe, 14a...One end, 14b...Other end, 2...Fuel supply hose, 21...Tip surface,
22...notch, 3...band.

Claims (1)

[Scope of utility model registration request] A fuel supply hose that is fitted and connected to the outer periphery of a lower end of a fuel supply pipe from which an air vent pipe branches, wherein a notch into which the air vent pipe fits is formed on the end surface of the connection to the fuel supply pipe. Refueling hose.