JPH063186Y2 - Fuel tank inlet filter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention is a suction port filter at the bottom of the fuel tank of an automobile or the like, which prevents clogging of the fuel pipe suction port and enables smooth fuel suction. Regarding the improvement of.

<Prior Art> In most cases, the fuel inlet at the end of the fuel pipe in the fuel tank has an over-functional structure in order to prevent it from being clogged with large labels, rust, dust, etc. inside the tank. is there. Conventionally, in many cases, the filter of the suction port attached for this purpose has a bead on the fuel pipe and is fitted with a groove or the like provided on the filter side. There are many examples in which a convex portion is provided on the fuel pipe by providing a bead or the like, and there are many examples. For example, Japanese Utility Model Publication No. 56-26805, Japanese Utility Model Publication No. 58-100128,
No. 59-192667, JP-A-59-162354, 59-199324
No. 60-35719, No. 60-35719, and No. 60-140611.

The end of the fuel pipe is often further provided with a positioning bead in front of the end of the fuel pipe so that the end of the fuel pipe does not reach the bottom of the inlet filter.

<Problems to be Solved by the Invention> As described above, in the conventional product, it is necessary to take out one or a plurality of beads near the end of the fuel pipe, and therefore, it is necessary to process the pipe. Therefore, there is a need to develop a suction inlet filter that does not require such troublesome processing on the end of the fuel pipe and that has a structure with a good mounting and holding force.

<Means for solving the problem> Therefore, a plurality of pipe support pieces (2) are provided on the outer circumference of the pipe insertion hole.
Is provided so that it can be inserted even if the diameters of the fuel pipes are different, and that the pipes can be held by an elastic imparting portion (3) formed by being curved between the filter body and the inside of the pipe supporting piece (2). The structure is such that a pipe bridge (4) that protrudes inward is formed.

<Operation> With such a structure, when the fuel pipe is inserted, the pipe support piece (2) escapes outward in the radial direction, so that the fuel pipe can be inserted even if the diameter of the fuel pipe varies. After the insertion, the inner pipe receiver (4) of the pipe support piece (2) restrains the further insertion of the fuel pipe and prevents the end of the pipe from further advancing. Further, the pipe support piece (2) supported by the elasticity imparting portion always elastically supports the fuel pipe radially inward.

<Embodiment> An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a sectional view taken along the line AA in FIG. 2 when the device of the present invention is attached to a fuel pipe, and FIG. 2 is a plan view of the device of the present invention.

The suction port filter that exhibits an excessive function in the illustrated fuel tank includes a cap-shaped upper filter body (1a) and a saucer-shaped lower filter body (1b) inserted from below. The lower filter body (1b) is elastically held by the upper filter body (1a) so that the lower filter body (1b) is always in contact with the bottom of the tank to allow the fuel to be sucked up even if the bottom of the fuel tank is deformed or an installation error occurs. For this reason, the side wall of the lower filter body (1b) is provided with the protrusions of the locking piece (11) and the spring receiver (12), and the upper filter body (1).
The side wall of (a) is provided with a guide elongated hole (5a) at a position corresponding to the locking piece (11), and further, a part of the flange (6) provided on the lower side wall of the upper filter body (1a). A notch is formed into an arc-shaped spring (7), and the spring receiver (12) of the lower filter body (1b) is elastically supported by this spring (7). Spring bridge (1
2) is vertically movable in a guide notch (5b) provided by notching the side wall of the upper filter body (1a) from below.

A pipe insertion hole (9) is provided at the center of the upper part of the upper filter body (1a) as described above, and two pipe supports facing each other are provided on the outer periphery of the pipe insertion hole on the upper filter body (1a). The piece (2) is provided so as to be expandable, and is elastically supported in the pipe radial direction by the elasticity imparting portion (3). The elasticity imparting portion (3) is connected to the upper surface of the main body in a state in which the pipe supporting piece (2) once curved upward and extended downward is curved in an arc shape.
This supports that the pipe support piece (2) elastically restrains the fuel pipe (20) (indicated by a chain double-dashed line). An inner pipe receiver (4) is formed at the lower end of the pipe support piece (2) extended downward. This inner pipe receiver (4) is a stopper guide of a strip with a curved downward shape provided next to the pipe support piece (2).
By (10), the fuel pipe (20) is restricted from falling below that as described above.

3 and 4 show a second embodiment of the present invention,
3 is a sectional view taken along line BB in FIG. 4, and FIG. 4 is a plan view.

In this example, the pipe support piece (2) is the upper filter body (1a).
When it is provided downward from, it is held by a supporting portion that is curved downward, and is urged toward the center of the pipe insertion hole by the elasticity imparting portion (3). Elasticity imparting part (3)
Is an elastic strip curved in an arc shape in this example.

5 and 7 are plan views of other embodiments. Also,
FIG. 6 and FIG. 8 are cut-away end views of essential parts. These are the elasticity imparting parts without the stopper guide (10).
By (3), four pipe support pieces (2) are elastically supported as shown in FIGS. 5 and 6, or four pieces are provided as shown in FIGS. 7 and 8, and the number is increased to increase the pipe support piece (2). It is the one that supports the pipe only. In either case, an inner pipe receiver (4) is provided at the lower end of the pipe support piece (2).

<Effects of the Invention> The suction port filter having the above structure can be used by inserting fuel pipes having different diameters, and can be held with an appropriate force even if the bead is not devised on the fuel pipe. . Further, in addition to being easy to install, even after the installation, even if the tank is deformed, the fuel can be delivered by exerting a filter effect without trouble in the vicinity of the bottom surface.

[Brief description of drawings]

FIG. 1 is a sectional view taken along the line AA in FIG. 2 when the device of the present invention is attached to a fuel pipe, and FIG. 2 is a plan view of the device of the present invention. 3 and 4 show a second embodiment of the present invention, FIG. 3 is a sectional view taken along line BB in FIG. 4, and FIG. 4 is a plan view. 5 and 7 are plan views of other embodiments. FIG. 6 and FIG. 8 are cut-away end views of essential parts. (1a) Upper filter body (1b) Lower filter body, (2) Pipe support piece (3) Elasticity imparting part, (4) Inner pipe support (5a) Guide slot, (5b) Guide notch (6) Flange, (7) Spring (9) Pipe insertion hole (10) Stopper guide, (11) Locking piece (12) Spring holder, (20) Fuel pipe

Claims (1)

[Scope of utility model registration request] 1. A plurality of pipe support pieces around the pipe insertion hole.
The (2) is provided so that the pipe can be held by the elasticity imparting portion (3) formed by being curved between the filter body and the filter main body so that the pipe can be inserted even if the diameter of the fuel pipe is different, and the lower end of the pipe supporting piece (2). A suction filter for a fuel tank, characterized in that a pipe support (4) is formed on the inside of the pipe support (4).