EP0326084A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A mechanism for opening and closing toilet seat and cover
Assignee: Toto Ltd
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Filing: 1989-01-24
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Granted: —
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Expires: 2009-01-24
Abstract
Abstract A detachable opening and closing structure for stool seat and cover, wherein a resistance mechanism is not actuated when opening the seat and cover, but turns them quickly within a predetermined range of angles and then operates slowly for closing, and an erection mechanism applicable preferably to such mechanism is provided further thereto. Accordingly, when opening the seat and cover, these can be handled lightly as in the case of normal seat and cover, and closed within a short time despite being loaded with a resistance. Shocks from the opening and closing mechanism to the stool side are relieved, thus preventing members from damage, loose work and the like. Further, it is not necessary to provide the erection mechanism separately from the opening and closing mechanism, a structure can be compact, the mechanism is detachable easily to simplify the maintenance work, and sanitary use is ensured.
Inventors
- 👤 Keiichi Kokura Plant No. 2 Toto Ltd. Kobayashi
- 👤 Masazumi Kokura Plant No. 2 Toto Ltd. Moriwaki
- 👤 Sigenari Kadomatsu
- 👤 Yuji Fujie
- 👤 Masanobu Kawamoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 22:58
CPC Classifications
A; A47; A47K; A47K13/00; A47K13/12; E; E05; E05D; E05D11/00; E05D11/08; A47K13/10; E05F; E05F3/00; E05F3/14; E05F3/20; E05Y; E05Y2201/00; E05Y2201/20; E05Y2201/21; E05Y2201/252; E05Y2201/254; E05Y2201/262; E05Y2201/266; E05Y2201/40; E05Y2201/47; E05Y2201/49; E05Y2999/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
106 words
An opening and closing mechanism for connecting at leat one of a seat and a cover closably to a stool, comprising a fitting shaft inserted in mounts provided on at least one base end of the seat and the cover and supported detachably, a resistance mechanism for providing a turning resistance only at the time when at least one of said seat and cover is closed, a constraint mechanism for retaining at least one of the seat and the cover at a position for erection, and a power transmission mechanism for correcting a change in turning force through the period from the erected position to closing.
Claim 2
Dependent Claim
106 words
An opening and closing mechanism for connecting at leat one of a seat and a cover closably to a stool, comprising a fitting shaft inserted in mounts provided on at least one base end of the seat and the cover and supported detachably, a resistance mechanism for providing a turning resistance only at the time when at least one of said seat and cover is closed, a constraint mechanism for retaining at least one of the seat and the cover at a position for erection, and a power transmission mechanism for correcting a change in turning force through the period from the erected position to closing.
Claim 3
Dependent Claim
49 words
An opening and closing mechanism for seat and cover according to claim 1, wherein said resistance mechanism for providing a turning resistance only at the time when at least one of the seat and the cover is closed is a resistance mechanism utilizing a viscosity having a clutch function.
Claim 4
Dependent Claim
97 words
An opening and closing mechanism for connecting at least one of a seat and a cover closably to a stool, inserting and connecting a fitting shaft passing through mounts provided on at least one base end of the seat and the cover and provided with a resistance mechanism for applying a resistance to a rotation of the fitting shaft, which is characterized in that said fitting shaft and resistance mechanism are connected with a play of a predetermined range of angles where at least one of said seat and cover posturizes to fall from the erected position.
Claim 5
Dependent Claim
97 words
An opening and closing mechanism for connecting at least one of a seat and a cover closably to a stool, inserting and connecting a fitting shaft passing through mounts provided on at least one base end of the seat and the cover and provided with a resistance mechanism for applying a resistance to a rotation of the fitting shaft, which is characterized in that said fitting shaft and resistance mechanism are connected with a play of a predetermined range of angles where at least one of said seat and cover posturizes to fall from the erected position.
Claim 6
Dependent Claim
106 words
An opening and closing mechanism for connecting at least one of a seat and a cover closably to a stool, inserting and connecting a fitting shaft passing through mounts provided on at least one base end of the seat and the cover, which is characterized in that said fitting shaft has a cam part on the peripheral surface, a constraint mechanism for constraining a rotation of said fitting shaft so as to correspond to the cam part is unified with said opening and closing mechanism, said seat can be locked at the erected position by regulating the rotation of the fitting shaft on said constraint mechanism.
Claim 7
Dependent Claim
106 words
An opening and closing mechanism for connecting at least one of a seat and a cover closably to a stool, inserting and connecting a fitting shaft passing through mounts provided on at least one base end of the seat and the cover, which is characterized in that said fitting shaft has a cam part on the peripheral surface, a constraint mechanism for constraining a rotation of said fitting shaft so as to correspond to the cam part is unified with said opening and closing mechanism, said seat can be locked at the erected position by regulating the rotation of the fitting shaft on said constraint mechanism.
Claim 8
Dependent Claim
53 words
An opening and closing mechanism for seat and cover according to claim 4, wherein the constraint mechanism for constraining a rotation of said fitting shaft so as to correspond to the cam part is provided with a locking piece coming in contact with a peripheral surface of the cam part to elastic deformation.
Claim 9
Dependent Claim
63 words
An opening and closing mechanism for seat and cover according to claim 4, wherein the constraint mechanism for constraining a rotation of said fitting shaft so as to correspond to the cam part is provided with a locking piece to come in contact with a peripheral surface of the cam part and elastic means for energizing the locking piece toward said cam part.
Claim 10
Dependent Claim
94 words
An opening and closing structure wherein mounts are provided on a base end portion of a seat, said seat is connected closably to a stool by a fitting shaft passing through the mounts, which is characterized in that a synthetic resin made bush through which said fitting shaft is inserted is provided on said mounts, the bush has a locking piece which can elastically be deformed radially around a line of insertion of said fitting shaft, further a groove engaging with the locking piece is provided on a peripheral surface of said fitting shaft.
Claim 11
Dependent Claim
94 words
An opening and closing structure wherein mounts are provided on a base end portion of a seat, said seat is connected closably to a stool by a fitting shaft passing through the mounts, which is characterized in that a synthetic resin made bush through which said fitting shaft is inserted is provided on said mounts, the bush has a locking piece which can elastically be deformed radially around a line of insertion of said fitting shaft, further a groove engaging with the locking piece is provided on a peripheral surface of said fitting shaft.
References Cited (Backward Citations)
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