Patent EP0386919A2 successfully refreshed from Google Patents.
EP0386919A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Thermal printer
Assignee: Toshiba Tec Corp
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Filing: 1990-02-27
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Granted: —
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Expires: 2010-02-27
Abstract
Abstract In a thermal printer according to the present invention, a platen (16) can be mounted in a pressed abutted condition against a thermal head (13) by fixing the platen (16) in a state where the platen (16) is pressed toward a thermal head (13) which is fixedly provided, and when the pressed abutted condition is released by the operation of a release lever the platen (16) is floated in a free condition and it can be easily taken out.
Inventors
- 👤 Akira Nuita
- 👤 Katsuhiko Kawaguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 18:05
CPC Classifications
B; B41; B41J; B41J13/00; B41J11/00; B41J11/24; B41J2/00; B41J2/315; B41J2/32
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
211 words
A thermal printer comprising: a thermal head fixed on a head frame; a supporting shaft held freely rotatably with said head frame; a couple of supporting levers on both sides having dented parts with an opening end supporting the shaft parts of a platen respectively and being engaged freely rotatably with said supporting shaft; a first energizing means for energizing said supporting levers toward said thermal head; a couple of stop levers on both sides being held freely rotatably by said supporting levers having depression parts abutting on external peripheral surfaces of shaft parts of said platen and having a rotary shaft parallel to said supporting shaft; a second energizing means for energizing said stop levers in the direction to move said depression parts toward the bottoms of said dented parts; a couple of release levers on both sides fixed on both ends of said supporting shaft; abutment parts abutting on each other being disposed on the opposing surfaces of said stop levers and said release levers; and hooks being disposed on the opening sides of said dented parts and being provided as a unity with said release levers, and facing, with specified gaps, to the outer peripheries of the small diameter parts formed on the shaft parts of said platen.
Claim 2
Dependent Claim
211 words
A thermal printer comprising: a thermal head fixed on a head frame; a supporting shaft held freely rotatably with said head frame; a couple of supporting levers on both sides having dented parts with an opening end supporting the shaft parts of a platen respectively and being engaged freely rotatably with said supporting shaft; a first energizing means for energizing said supporting levers toward said thermal head; a couple of stop levers on both sides being held freely rotatably by said supporting levers having depression parts abutting on external peripheral surfaces of shaft parts of said platen and having a rotary shaft parallel to said supporting shaft; a second energizing means for energizing said stop levers in the direction to move said depression parts toward the bottoms of said dented parts; a couple of release levers on both sides fixed on both ends of said supporting shaft; abutment parts abutting on each other being disposed on the opposing surfaces of said stop levers and said release levers; and hooks being disposed on the opening sides of said dented parts and being provided as a unity with said release levers, and facing, with specified gaps, to the outer peripheries of the small diameter parts formed on the shaft parts of said platen.
Claim 3
Dependent Claim
20 words
A thermal printer according to claim 1, wherein a release lever is formed by protruding a handle toward front side.
Claim 4
Dependent Claim
162 words
A thermal printer comprising: a thermal head fixed on a frame; a supporting shaft being held freely rotatably by said frame; a couple of supporting levers on both sides having dented parts with openings on the thermal head side and being engaged with the outer peripheries of the shaft parts of a platen, and being engaged freely rotatably with said supporting shaft; a first energizing means for energizing said supporting levers toward said thermal head side; a couple of release levers on both sides fixed on both ends of said supporting shaft having hooks facing the outer peripheries of shaft parts of said platen provided on the opposite side to said dented parts, and having opposition parts being disposed on the opposite side to the hooks and being opposed to the outer peripheries of the shaft parts of said platen; and a second energizing means for energizing said release levers in the opposite direction to the energizing direction for said supporting levers.
Claim 5
Dependent Claim
162 words
A thermal printer comprising: a thermal head fixed on a frame; a supporting shaft being held freely rotatably by said frame; a couple of supporting levers on both sides having dented parts with openings on the thermal head side and being engaged with the outer peripheries of the shaft parts of a platen, and being engaged freely rotatably with said supporting shaft; a first energizing means for energizing said supporting levers toward said thermal head side; a couple of release levers on both sides fixed on both ends of said supporting shaft having hooks facing the outer peripheries of shaft parts of said platen provided on the opposite side to said dented parts, and having opposition parts being disposed on the opposite side to the hooks and being opposed to the outer peripheries of the shaft parts of said platen; and a second energizing means for energizing said release levers in the opposite direction to the energizing direction for said supporting levers.
References Cited (Backward Citations)
No citation records indexed.
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