Hot and cold water mixing device
First Claim
1. A hot and cold water mixing device which comprises:
- an outer housing having openings which communicate with a hot water supply passage, a cold water supply passage and a mixed water delivery passage;
a hollow inner housing which is inserted into the outer housing with a vacant space remaining therebetween and on which two primary water holes communicating with said hot water supply passage and said cold water supply passage, respectively, and a secondary water hole communicating with said mixed water delivery passage are formed passing through the wall of said hollow inner housing from the outer surface thereof; and
insulating members for forming fluid passages within said vacant space between said outer housing and said inner housing, which enclose at least one water hole communicating with said hot water supply passage among said two primary water holes, and said secondary water hole, respectively, and which each are partly arranged in the direction of intersection with the circumferential line of the inner housing.
1 Assignment
0 Petitions
Accused Products
Abstract
A hot and cold water mixing device which comprises an inner housing (11) provided with a hot water inlet hole (17), a cold water inlet hole (18) and a mixed water delivery hole (19), and an outer housing (31) having openings (33, 34, 32) communicating with a hot supply passage (15), a cold water supply passage (16) and a mixed water supply passage (14). The inner housing (11) is inserted into the outer housing (31) to form a hot water passage (20), a cold water passage (35) and a mixed water passage (30) between the outer housing (31) and the inner housing (11). The hot water passage (20) and the mixed water passage (30) are formed by enclosing the hot water inlet hole (17) and the mixed water delivery hole (19) by the respective seal members (26, 29) which each are partly arranged so as to intersect with the circumferential line of the inner housing (11).
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Citations
53 Claims
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1. A hot and cold water mixing device which comprises:
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an outer housing having openings which communicate with a hot water supply passage, a cold water supply passage and a mixed water delivery passage; a hollow inner housing which is inserted into the outer housing with a vacant space remaining therebetween and on which two primary water holes communicating with said hot water supply passage and said cold water supply passage, respectively, and a secondary water hole communicating with said mixed water delivery passage are formed passing through the wall of said hollow inner housing from the outer surface thereof; and insulating members for forming fluid passages within said vacant space between said outer housing and said inner housing, which enclose at least one water hole communicating with said hot water supply passage among said two primary water holes, and said secondary water hole, respectively, and which each are partly arranged in the direction of intersection with the circumferential line of the inner housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 48, 49, 50, 51, 52)
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40. A method for forming fluid passages of the hot and cold water mixing device, which comprises the steps of
forming a hollow inner housing with two primary water holes communicating with a hot water supply passage and a cold water supply passage, respectively, and a secondary water hole communicating with a mixed water delivery passage, by passing through the wall from the outer surface side; -
enclosing the water hole communicating least with the hot water supply passage among said two primary water holes and the secondary water hole, using insulating members which each are partly arranged in the direction of intersection with the circumferential line of the inner housing; and inserting said inner housing into the hollow outer housing having the openings communicating with the hot water supply passage, cold water supply passage and mixed water delivery passage, respectively, thereby forming fluid passages within the vacant space between the inner housing and the outer housing. - View Dependent Claims (41, 42)
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- 43. A method for assembling the hot and cold water mixing device by mounting the seal members on the seal-mounting parts of the inner housing and, thereafter, inserting the inner housing into the outer housing, characterized in that the seal members mounted on the seal-mounting parts are compressed and deformed so that their outer surfaces come to be flush with or smaller than the inner circumferential surface of the outer housing, and are frozen with their deformed condition, the inner housing with the seal members being frozen is inserted into the outer housing and, thereafter, the seal members are thawed.
- 44. A method for assembling the hot and cold water mixing device by mounting the seal members on the seal-mounting parts of the inner housing and, thereafter, inserting the inner housing into the outer housing, characterized in that the seal members mounted on the seal-mounting parts are compressed and deformed so that their outer surfaces come to be flush with or smaller than the height of the outer circumferential surface of the seal-mounting parts, and are frozen with their deformed condition, the inner housing with the seal members being frozen is inserted into the outer housing and, thereafter, the seal members are thawed.
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47. A method for sealing the water passages formed by defining the space between the outer housing and inner housing constituting the hot and cold water mixing device by insulating members provided so as to project on the outer surface of the inner housing, wherein after said inner housing is inserted into said outer housing, a liquid seal material is injected at a position of communicating with a concave groove provided on the holding part of the inner housing for mounting an insulating member, into said concave groove from an injection hole for a liquid seal material drilled through the tube wall of said outer housing, and the liquid seal material is set to thereby perform the seal of said water passages.
Specification