EP0101841A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Automatic/manual bail opener
Assignee: International Business Machines Corp
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Filing: 1983-07-07
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Granted: —
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Expires: 2003-07-07
Abstract
Abstract An automatic/manual shuttle mechanism is used to open and close the bail mechanism which holds a print sheet against the platen roller (36) of a typewriter/printer. The shuttle mechanism includes a shuttle member (218) fitted with a slot (224). The slot rides (or shuttles) against a pin (246) which is mounted to the frame of the typewriter/printer. The shuttle mechanism is coupled to the bail mechanism. In an automatic mode of operation, a motor/crank assembly (236, 238, 234, 232, 229, 230) drives the shuttle mechanism (218). In a manual mode of operation, a manual lever (216) drives the shuttle member.
Inventors
- 👤 Dean Jerome Scott
- 👤 Thomas Eugene Wilson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 06:34
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/0009; B41J13/0018; B41J13/10; B41J13/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
101 words
In a typewriter/printer having a platen roller (36) for positioning a recording sheet and a bail (40) for holding the sheet against said platen roller and a device for opening and closing the bail, characterized by an elongated lever means (204) having one end coupled to the bail (40) and constrained to shuttle along a substantially linear path; a drive motor (236) and a mechanical coupling means (218, ..., 238) disposed to transmit motion from the motor to the lever means so that for each revolution of the motor, the lever means is driven bidirectionally to open and close the bail.
Claim 2
Dependent Claim
101 words
In a typewriter/printer having a platen roller (36) for positioning a recording sheet and a bail (40) for holding the sheet against said platen roller and a device for opening and closing the bail, characterized by an elongated lever means (204) having one end coupled to the bail (40) and constrained to shuttle along a substantially linear path; a drive motor (236) and a mechanical coupling means (218, ..., 238) disposed to transmit motion from the motor to the lever means so that for each revolution of the motor, the lever means is driven bidirectionally to open and close the bail.
Claim 3
Dependent Claim
30 words
The device of claim 1 further including a lever means coupled to the bail, said lever means (216, Fig. 12) being operable for manually closing and opening of the bail.
Claim 4
Dependent Claim
62 words
The device of claim 1 wherein the mechanical coupling means including a pinion gear (238) mounted to the shaft of the motor (236); a crank gear (234) disposed relative to said pinion gear and operable to be driven thereby; and a pin (232) extending from the surface of the crank gear, said pin being operable for driving the lever means (218, 204).
Claim 5
Dependent Claim
127 words
The device of claim 1, said device comprising a mounting bracket (208, 240) connected to the frame of the typewriter/ /printer, said mounting bracket having a first pin (246) extending from its surface: said drive motor (236) mounted to said bracket; a pinion gear (238) mounted to the drive shaft of said motor; a rack gear (234) mounted to the bracket and in driving engagement with the pinion gear, said rack gear having a drive pin (232) extending from its surface; and an elongated member (218) having one end connected to the bail (204) with a control slot for shuttling on the first pin (246) and a bifurcated end (226, 228) coacting with said drive pin (232) to drive said member to open and close the bail.
References Cited (Backward Citations)
No citation records indexed.
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