Other

Toyo Roki Seizo Kabushiki Kaisha

Takeo Sugimoto

Kazuhiro Yoshida

Kenji Yano

Takahiro Minowa

Akira Uchiyama

An oil filter for preliminarily confirming a correct assembling of a valve body to a holder and for preventing the valve body from being abnormally assembled. A valve seatis welded to a capcovering a filter element. A claw portion for a valve bodyis formed on the valve body, and an engagement portion for the valve bodyto be engaged with the claw portion for the valve bodyis formed on a holderassembled with the inner peripheral side of the filter element. In addition, a spring memberis fitted between the valve bodyand a spring receiving portionprovided for the holder. By the engagement of the claw portion for the valve bodywith the engagement portion for the valve body, the valve bodyis assembled with the holder

Oil filter and method of manufacturing the oil filter

A spring is crimpingly fixed to an element holding plate of the fluid filter. Since the spring is crimpingly fixed to the element holding plate a material having a high elastic limit can be freely selected for the spring At the assembling time, the spring can be prevented from yielding to be elastically deformed, even when the size between the upper end of the element and the crest of the filter case fluctuates. As a result, it is possible to provide a fluid filter which requires no high sizing accuracy of the individual parts composing the fluid filter at the assembling time so that it can be easily assembled.

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Hamakita, Japan

Takeo Sugimoto