Title:
FAUCET
Document Type and Number:
Japanese Patent JP2616873
Kind Code:
B2
Abstract:
PURPOSE: To facilitate manufacture of a faucet and to improve heat insulating ability by a method wherein the inlet and the outlet of an internal member are communicated with a gap and a layer formed of resin is formed at least at a part of the inner peripheral surface of an external member.
CONSTITUTION: A covering layer 54 formed of polytetrafuloroethylene is formed on the inner peripheral surface of an outer casing 50. Thus, the cavitation damage of the outer casing 50 owing to cavitation is prevented from occurring. Further, since the surface of the covering layer 54 is smoothened, there is no need for secondary machining, such as grinding and polishing, of the part, with which a sealant makes contact, of an O-ring. Further, when the thickness of the covering layer 54 is increased, since resin has insulating ability, the outer peripheral surface of the outer casing 50 is prevented from being heated. This constitution causes a water flow passage 55 to form a hot water flow passage, resulting in the increase of the degree of freedom of a design of variation in a position between a mixing valve cartridge 70 and a switch valve cartridge 150.
Inventors:
Shinsuke Matsuo
Masakazu Kogo
Yoshinori Sagara
Masakazu Kogo
Yoshinori Sagara
Application Number:
JP11095293A
Publication Date:
June 04, 1997
Filing Date:
April 13, 1993
Export Citation:
Assignee:
Totou Equipment Co., Ltd.
International Classes:
F16K11/00; F16K25/04; F16K27/00; (IPC1-7): F16K27/00; F16K11/00; F16K25/04
Domestic Patent References:
| JP2143578U | ||||
| JP61152073U |
Attorney, Agent or Firm:
Takashi Shimode (1 outside)