Nok Corporation

Jalco Co., Ltd.

Masahiro Anzai

Takehiro Nakagawa

Akihiro Sato

Hiromi Takahashi

Junya Hoshi

Tetsuo Tasaki

A lip type end face sealing device having excellent sealability to different kinds of liquids on both sides in the axial direction and having excellent durability. A case is tight fitted to an inner peripheral face of a housing and includes case members. One pair of seal lips is integrally fitted to inner peripheral flange parts, positioned oppositely each other in the axial direction, and opened in a tapered shape. One pair of the seal lips is slidably contacted with flange parts of slingers tight fitted to an outer periphery of a rotary shaft. Pressure in seal internal spaces between the seal lips is released through a vent hole.

Lip type end face sealing device

An objective of the present invention is to provide a lip type end face sealing devicehaving excellent sealability to different kinds of liquids on the both sides in the axial direction and having excellent durability. A casetight fitted to an inner peripheral faceof a housingcomprises case membersand. One pair of seal lipsandis integrally fitted to inner peripheral flange partsand, positioned oppositely each other in the axial direction, and opened in a tapered shape. One pair of the seal lipsandis slidably contacted with flange partsandof slingersandtight fitted to an outer periphery of a rotary shaft. Pressure in seal internal spaces Sbetween the both seal lipsandand the both slingersandis released through a vent holeopened on the inner peripheral faceof the housing, an air holeopened on the case, and between the case membersand

Jack plate

A jack having switch is constituted so that a movable armature is displaced so as to be separated from a fixed armature which contacts with the movable armature by insertion of a plug, the plug and the movable armature are brought into a contact state, and this state is maintained. The movable armature has two-pronged branch portions along a plug insertion/uninsertion direction, and the branch portions have plug contact portions which are expanded to be displaced outward by the plug to be inserted therebetween and hold the outside of the plug so as to be connected to the plug. The branch portions have fixed armature contact portions which contact with the movable armature arranged to be opposed to the branch portions when the plug is not inserted.

Growing community of inventors

Tokyo, Japan

Masahiro Anzai