JPS59103856A - Gasoline tank cap - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gasoline tank cap provided with a torque regulating device.

Conventional gasoline tank caps have a torque regulating arm formed on the flange of the cap body, and a claw formed at the tip of this arm engages with a claw formed on the handle, resulting in the overall size of the cap becoming too large. At the same time, since the handle clay wall is made of resin, during torque regulation motion, the upper wall of the handle (7) deforms, and a portion of the gripper's pawl wears out and becomes uneven. The drawback was that it had to be replaced.

This invention solves the above drawbacks by disposing a sleeve between the handle and the cap body, and engaging the first protrusion of the arm portion provided on the sleeve with the second protrusion formed on the cap body. It is something.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. A cap body 15 has a flange portion 12 in which a plurality of first protrusions 11 are formed, and a body portion 14 in which a hole 13 is formed to be screwed into the filler neck. and a claw portion 16 that is relatively rotatably engaged with the lower surface of the flange of the cap body 15.
It has a handle 17 and a sleeve 18 disposed between the cap body 15 and the handle 17. Cap body 1
5, it has a metal cap 20 and a synthetic resin collar 21. The body of the cap 20 is formed with the screw 13, and one end thereof is provided with a flange 19 and an annular edge 22 bent in the axial direction from the flange 19. annular edge 2
2, a notch portion 23 is formed. Further, air holes 29 are formed in the bottom wall 30 of the cap 20.

The collar 21 includes a bottom wall 25 in which an air hole 24 is formed, a body part 26 connected to the bottom wall 25, a flange part 12 formed at the end of the body part 26, and a flange part 12 formed at the end of the body part 26. It has a first protrusion 11 formed on the upper surface. Color 21 is
As shown in the figure, the annular edge 22 is housed in the cap m together with a seal ring 28 disposed adjacent to the connecting portion between the flange 27 and the body 26, and the annular edge 22 is swaged onto the flange 27 of the collar 21. 21 is fixed within the cap 20. Bottom wall 25 of collar 21 and bottom wall 30 of cap 20
A valve device 31 is disposed between the two as necessary. The valve device 31 includes a diaphragm 32 that is in close contact with the bottom wall 25 of the collar 21, a spring receiver 33 that is disposed below the diaphragm 32, and a spring receiver 33 that connects the spring receiver 33 to the diaphragm 32.
To the spring 34 that is constantly pressed and the cover 35 that supports the end of the spring 34 and is fixed to the body 26 of the collar 21
has. The cover 35 has an elastic bent edge 36 which is fixed inside the body 26 by its own elasticity and an annular projection 37 on the body 26 and holds the diaphragm 32 in place. Hold.

When the pressure inside the tank becomes less than 17 constant with respect to the outside air, the spring 34 is compressed by the pressure applied to the diaphragm 32 through the air hole 24, and the lip 38 of the diaphragm 32 and the bottom wall 25 are released from the air hole 24. between and diaphragm 3
Atmospheric air flows into the υ tank through the hole formed in the center of 2.

In order to prevent these relative rotations when fixing the cap 20 to the collar, the protrusion 39 of the flange 12 enters the notch 23 of the cap 20 when the cap 20 is swaged.

In order to prevent relative rotation with the handle 17, the collar 21 includes a peak 41 that fits into the recess 40 of the handle 17, an arm 42 extending in the circumferential direction, and an end of each arm 42. It has a second protrusion 43. As shown in FIG. 3, each second projection 43 has an upright surface 44 and an inclined surface 45, which are different from the upright surface 46 or the inclined surface 47 of the first projection 11.
engage with. When the Ganrin tank cap of the present invention is tightened to the filler neck, the second protrusion 4 of the arm portion 42
The inclined surface 45 of No. 3 and the inclined surface 47 of the first protrusion 11 of the collar 21 engage to transmit the tightening torque, but when the tightening torque exceeds a predetermined value, the arm portion 42 deforms upward. death,
The first protrusion 11 rides over the second protrusion 43, and the cap 2o is prevented from being bitten into the filler neck. When removing the cap 20 from the filler neck, the upright surface 44 of the second projection 43 engages with the first projection 11, and the handle 17 and the cap body 15 rotate together.

When assembling the cap, the diaphragm 32, spring receiver 33, and spring 34 are inserted into the collar 21 from below, the cover 35 is further inserted from below, the valve device 31 is assembled, and then the collar is assembled with the seal ring 28 as described above. 21 and cap 20 are assembled. Next, the seal ring 5o is attached to the cap body 15, and the first protrusion 11
and the sleeve 18 is placed on the collar 21 so that the second protrusion 43 is engaged, the handle 17 is pressed from above,
At the same time that the crest 41 of the sleeve 18 fits into the four parts 4o of the handle 17, the claw part 16 of the handle 17 engages the cap 2o.
The handle 17 and the camp body 15 are prevented from being separated. The handle 17 is made of flexible resin, and the claw portion 16 is engaged with the flange 19 with one touch.

In the cap of the present invention, since the second protrusion formed on the sleeve is engaged with the first protrusion of the collar, the collar is not deformed during torque regulation rotation, so that abnormal wear does not occur on a portion of the first protrusion or the second protrusion. First, it is possible to maintain the regulated torque value at a constant level during long-term use of the cap, and because the sleeve and collar fit together, the handle can be molded with various resins, and the operating noise when torque is regulated is low. Furthermore, even if the sleeve wears out, only this sleeve can be replaced, so there is no need to waste an expensive handle.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a sectional view of the cap, FIG. 2 is an exploded perspective view of the cap, and FIG. 3 is a partial view of the first and second projections. 11...First protrusion, 12...Flange portion, 13...Screw, 15...Cap body, 17...Handle, 18 ... Sleeve, 20 ... Cap, 21 ... Collar, 43 ... Second protrusion. Patent applicant: Kokusan Metal Industry Co., Ltd. Figure 1 Figure 3

Claims (1)

[Claims] A cap body having a flange portion formed with a plurality of first protrusions and a body portion formed with a screw to be screwed into the filler neck; a nozzle that is relatively rotatably engaged with the cap body; and a cap body; A sleeve is provided between the handle and the sleeve, and the sleeve is provided with a second protrusion formed at a connecting portion with the handle that does not rotate relative to the handle and at an end of an arm portion extending in the circumferential direction. and the second protrusion are respectively formed with an upright surface and an inclined surface and engage with each other, and when the handle is rotated in one direction relative to the cap body, the upright surfaces of the first and second protrusions engage with each other and the handle is moved in the release direction. When the cap rotates with the handle, and when the handle is rotated in the direction of tightening, when a torque of more than a predetermined value is applied, the sloped surfaces of the first and second protrusions are no longer held together and the handle is rotated. A gasoline tank camp characterized by the fact that the cap rotates idly relative to the main body.