EP0130824B1
Expired / Lapsed
EP
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Sheet sensing apparatus
Assignee: De la Rue Systems Ltd
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Filing: 1984-06-29
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Granted: 1988-09-21
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Expires: 2004-06-29
Abstract
No abstract record available.
Inventors
- 👤 Martin Lane
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 14:56
CPC Classifications
B; B65; B65H; B65H7/00; B65H7/02; B65H7/06; B65H7/12; B65H29/00; B65H29/001; B65H2511/00; B65H2511/10; B65H2511/17; B65H2511/50; B65H2511/52; B65H2511/524; B65H2553/00; B65H2553/40; B65H2553/41; B65H2553/412
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
108 words
Sheet sensing apparatus comprising a shaft (9); at least one roller assembly (20) mounted on the shaft by means including a resilient portion (30); a guide surface (17), the roller assembly cooperating with the guide surface to define a nip (24) therebetween; sensing means (37, 38) within the shaft (9) for sensing deflection of the resilient portion (30) relatively to the shaft in response to the passage of one or more sheets (44) through the nip (24) between the roller assembly (20) and the guide surface (17); and monitoring means (41) connected to the sensing means (37, 38) for monitoring the sensed deflections of the resilient portion (30).
Claim 2
Dependent Claim
108 words
Sheet sensing apparatus comprising a shaft (9); at least one roller assembly (20) mounted on the shaft by means including a resilient portion (30); a guide surface (17), the roller assembly cooperating with the guide surface to define a nip (24) therebetween; sensing means (37, 38) within the shaft (9) for sensing deflection of the resilient portion (30) relatively to the shaft in response to the passage of one or more sheets (44) through the nip (24) between the roller assembly (20) and the guide surface (17); and monitoring means (41) connected to the sensing means (37, 38) for monitoring the sensed deflections of the resilient portion (30).
Claim 3
Dependent Claim
51 words
Sheet sensing apparatus according to claim 1, wherein the or each roller assembly (20) includes a rigid member (31) protruding into the shaft (9), the rigid member being radially movable relatively to the shaft in response to deflections of the resilient portion (30) and cooperating with the sensing means (37, 38).
Claim 4
Dependent Claim
56 words
Sheet sensing apparatus according to claim 2, wherein the sensing means includes means for generating (37) and receiving (38) electromagnetic radiation, the material of the rigid member (31) being such that on deflection of the resilient portion (30), the proportion of electromagnetic radiation received by the receiving means varies due to movement of the rigid member.
Claim 5
Dependent Claim
27 words
Sheet sensing apparatus according to claim 3, wherein the generating means comprises one or more light emitting diodes (37) and the receiving means comprises a phototransistor (38).
Claim 6
Dependent Claim
53 words
Sheet sensing apparatus according to any of the preceding claims, wherein the monitoring means includes means (41) for detecting whether deflection of the resilient portion (30) is caused by the passage of one or more than one sheet (44) through the nip (24) between the roller assembly (20) and the guide surface (17).
Claim 7
Dependent Claim
25 words
Sheet sensing apparatus according to any of the preceding claims, comprising two roller assemblies (20) mounted on the shaft (9) and spaced from each other.
Claim 8
Dependent Claim
47 words
Sheet sensing apparatus according to any of the preceding claims, wherein the or each roller assembly (20) comprises inner and outer races (28, 27) surrounding bearing means (29), the inner race being coaxial with the shaft and being supported on the shaft by the resilient portion (30).
Claim 9
Dependent Claim
43 words
Sheet sensing apparatus according to claim 7, when dependent on any of claims 2 to 4, wherein the rigid member comprises a pin (31) abutting an inner surface of the inner race (28) and protruding through an aperture (32) in the shaft (9).
Claim 10
Dependent Claim
32 words
Sheet sensing apparatus according to any of the preceding claims, wherein the sensing means (37, 38) is mounted in a housing (33) which is slidable into and out of the shaft (9).
Claim 11
Dependent Claim
14 words
Banknote feeding apparatus comprising sheet sensing apparatus according to any of the preceding claims.
References Cited (Backward Citations)
No citation records indexed.
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