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Tank cap

A container and sealing container technology, which is applied to the layout, power plant, transportation and packaging combined with the fuel supply of an internal combustion engine, can solve the difficulty in assembly workability and assembly strength, the decline in assembly workability, and the reduction in the assembly strength of plates and shells and other problems, to achieve the effect of excellent assembly workability and high assembly strength

Active Publication Date: 2006-02-08
TOYODA GOSEI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in this technique, if the engaging force between the engaging portion of the panel and the housing is increased, the assembly workability will be reduced, and if the engaging force is reduced to solve this problem, the assembly strength of the panel and the housing will decrease.
Therefore, there is a problem that both assembly workability and assembly strength are difficult

Method used

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Examples

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Embodiment Construction

[0041] (1) Schematic structure of the fuel cap 10

[0042] FIG. 1 is a sectional view showing a fuel cap 10 according to a first embodiment of the present invention. In FIG. 1 , a fuel cap 10 is attached to a nozzle FN having an inlet FNb (container opening) for replenishing fuel into a fuel tank not shown, and the fuel cap 10 is provided with a cap main body 20 . It is made of synthetic resin materials such as polyacetal; the cover body 40 is installed and fixed on the upper part of the cover main body 20, and has an operation part made of synthetic resin materials such as nylon; the pressure regulating valve 50 is accommodated in the valve chamber 25; the torque mechanism 90; and the gasket GS, which is installed on the upper periphery of the cover main body 20, so as to seal between it and the nozzle FN. In addition, the closing body referred to in the present invention refers to a member that opens and closes in the state of sealing the injection port FNb, and is a member...

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PUM

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Abstract

A fuel cap (10) of the invention includes a spring stopper mechanism (70) to lock a first spring (68) included in a pressure regulating valve (50) of the fuel cap (10). A spring stopper mechanism (70) includes stopper support members (71) that are formed along an inner circumference of a valve chest formation-member (20b), and a spring support member (75) that is held by the stopper support members (71) and supports an upper end of the first spring (68). The spring support member (75) is pressed down in an axial direction of the fuel cap (10) against a pressing force of the spring (68). The spring support member (75) at the pressed-down position is rotated relative to the stopper support members (71) by a preset angle. The spring support member (75) is then pressed against the stopper support members (71) by the pressing force of the spring (68) and is fixed by mating lock elements (77). This arrangement of the invention facilitates assembly of a pressure regulating valve and ensures sufficiently high assembly strength.

Description

technical field [0001] The present invention relates to a cap for a container provided with a pressure regulating valve for regulating the internal pressure of the container. Background technique [0002] Currently, as such a cap for a container, a fuel cap that opens and closes a filling port of an automobile fuel tank is known (for example, Patent Document 1). A pressure regulating valve for regulating the internal pressure of the container is provided on the fuel cap. The pressure regulating valve has a valve body and a spring that preloads the valve body. One end of the spring is supported in a manner of pre-tensioning the valve body, and the other end is supported on the inner cover. The inner cover is a resin plate provided with a communication hole for communicating the valve chamber with the outside, and is fixed to the opening upper end of the housing by ultrasonic welding or the like. [0003] However, in this prior art, since the inner cover is welded by ultras...

Claims

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Application Information

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IPC IPC(8): B60K15/05
Inventor 波贺野博之
Owner TOYODA GOSEI CO LTD