CA1190799A - Transport roller for a record carrier in a printer - Google Patents
Transport roller for a record carrier in a printerInfo
- Publication number
- CA1190799A CA1190799A CA000404998A CA404998A CA1190799A CA 1190799 A CA1190799 A CA 1190799A CA 000404998 A CA000404998 A CA 000404998A CA 404998 A CA404998 A CA 404998A CA 1190799 A CA1190799 A CA 1190799A
- Authority
- CA
- Canada
- Prior art keywords
- roller
- hub
- lateral end
- section
- sections
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000969 carrier Substances 0.000 claims description 9
- 230000032258 transport Effects 0.000 description 23
- 238000010276 construction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/02—Rollers
- B41J13/076—Construction of rollers; Bearings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/02—Web rolls or spindles; Attaching webs to cores or spindles
Landscapes
- Handling Of Cut Paper (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
- Ink Jet (AREA)
Abstract
ABSTRACT:
Transport roller for a record carrier in a printer.
A transport roller for a record carrier in a printer, for example, an ink jet printer, is composed of at least two laterally adjoining, hollow, cylindrical roller sections (1). Each roller section is connected to a hub (5) by means of at least one carrier (4). The roller sections are adjacently arranged on a shaft (7) by way of the hub so that they are locked against rotation.
An axial clamping device (10, 11, 12) ensures that the roller sections are pressed against one another. Further-more, at a first lateral end (13) of each roller section there is provided a groove (8) which opens towards this first end and in which there is arranged a toroidal ring (9). The laterally open groove is closed by the roller section which adjoins this first lateral end.
Transport roller for a record carrier in a printer.
A transport roller for a record carrier in a printer, for example, an ink jet printer, is composed of at least two laterally adjoining, hollow, cylindrical roller sections (1). Each roller section is connected to a hub (5) by means of at least one carrier (4). The roller sections are adjacently arranged on a shaft (7) by way of the hub so that they are locked against rotation.
An axial clamping device (10, 11, 12) ensures that the roller sections are pressed against one another. Further-more, at a first lateral end (13) of each roller section there is provided a groove (8) which opens towards this first end and in which there is arranged a toroidal ring (9). The laterally open groove is closed by the roller section which adjoins this first lateral end.
Description
~.~9~7'~
PHO 81.509 1 12.5.1982 Transport roller for a record carrier in a printer.
The invention relates to a transport roller for a record carrier in a printer, said transport roller com-prising toroidal rings which are adjacently arrange~ ~t a distance from one another in the longitudinal direction of the roller, each of said rings being arranged in a groove on the circumference, -the record carrier being guided by said rings. The toroidal rings are also referred to as O-rings. The rolling body of such a transport roller in commercially available printers consists of one piece.
It is a problem that the grooves for the toroidal rings (which must be proportioned comparatively acurately) must be subjected to a special treatment, because a~l toroidal rings must occupy exactly the same position wi-th respect to the circumferential surface of the rolling body in order to ensure that the path of the record carrier around the transport roller is uniformly cylindrical across the entire length of the roller. It is only then ensured that the path of the record carrier behind the transport roller is regular and exactly defined. This is important, for example, when after departure from the transport roller, the record carrier is fed to a flat supporting surface along which a printing head of a printer is guided to be displaceable in the line direction; in such a case the record carrier must res-t flatly on the supporting surface in order to ensure that the distance between theprinting head and the record carrier remains constan-t. This requirement must be satisfied, for example, in the case of ink jet printing heads.
~t is an object of the i~vention to construct a transport roller of -the kind set forth so -that it can be simply and cheaply manufactured, notably in bulk, without special treatments being required, whilst the path of the 37~
PH0 81~509 2 12.5.1982 record carrier around the transport roller is still regular and e~actl~ de~ined. To this end, the transport roller in accordance with the inven-tion is characterized in that it comprises at least two laterally adjoining, mainly hollow, cylindrical roller sections9 a hub being connected to each roller section via at least one carrier, the roller sections being adjacently arranged on a shaft by wa~ of their hubs so that they are loc~ed a~ainst rotation and are pressed against one another by means of a clamping device~ each roller section comprising one of the grooves which is provided at a first lateral end of the roller section and which is open towards this first latera]
end, the roller section adjoining this first lateral end closing the open side o~ the groove by way of its second la-teral end. Because the transport roller is composed of several roller sections, the individual roller sections are shorter accordingly, so that each section can be simply manufactured with high precision. For example, the separate roller sections can be very cheaply and simply made of plastics by injection moulding. Furthermore, the mounting of the toroidal rings is very simple~ because they can be readily arranged in the laterally open groove of each roller section.
For the construction and arrangement of the hub and the carrier connecting the hub to the hollow cylindrical roller section a series of possibilities exist within the range of the customarily used techniques. For example, for the accurate and stable journalling o~ a roller section on the shaft, use can be made of a hub which extends approximately over the ~u]l length o~ the roller section and which is connected to the hollow cylindrical roller section via a partition-like transverse wall which acts as a carrier. A preferred embodiment of the transpor-t roller in accordance with the invention is charac-terized in -that the hub of a roller section is arranged near the second latera] end, the hub projecting beyond -this second lateral end~ viewed ln the axial direction, the carrier for the ~g~
P~IO 81.509 3 12.5.1982 hub being connected to the roller section near the first lateral end and enclosing a coaxial recess for accommodating the hub of the roller section adjoining this first lateral end, the internal dimension of said coaxial recess corresponding to the external dimension of the hub.
Each hub can thus be constructed to be comparatively short;
accurate journalling of each roller sec-tion9 however~ is still obtained because the hub of one roller section serves also as a journal for the second roller when two roller sections are arranged one behind the other; thus, each roller section is actua~ly journalled twice. Because a bearing for the roller sec-tion is si-tuated near each toroidal ring, it is ensured tha-t the toroidal rings are ver~r exactly positioned. It is a further advantage that the precision manufacture of shorter hubs is easier.
The carrier which connec-ts the hub to the roller section may be constructed9 for example~ as a solid body.
In view of a simple but stable construction and ease of manufacturing, the hub is preferably connected to the roller section by way of at least three spoke-like carriers.
The invention will be described in detail herein-after with reference to the drawing which shows an embodiment in accordance with the invention.
Fig. 1 is a longi-tudinal sectional view of a transport roller consis-ting of several roller sections, Fig. 2 is a longitudinal sec-tional view at an increased scale of a single roller section of the trans-port roller shown in Fig. 1, and 3~ Fig 3 is a cross-sectional view of the roller section shown in Fig. 2.
The transport roller shown in Fig. 1 consists of five identical, hollow, cylindrical roller sec-tions 1 and two roller end sections 2 and 3. The construction of the roller end sec-tion 2 is quite similar -to that of the roller sections 1. The roller sections 1 and the roller end section 2 are each connected to a hub 5 via carriers 4.
9~
PHO ol .509 4 12.5. 1982 lhe roller ~nd section 3 also comprises a hub 6. The roller sectlons 1 and the roller end sec-tions 2 and 3 are adjacently arranged on a shaft 7 by way of -the hubs 5 ancl 6 so that they are locked against rotation, the roller end sections 2 and 3 consti-tuting the lateral ends of the transport roller~ ~ll roller sections are locked against rotation, for example~ in that the shaft 7 consists of a profile~ rod on which the correspondingly shaped hubs o~
the roller sections are fitted. Between each pair of laterally adjacent roller sections 1 and also between the roller end sections 2 and 3 and the adjacent roller sections 1 there is provided a toroidal ring 9 which is arranged in a groo~e 8 at the circumference of -the roller sections 1 and the roller end section 2. The roller sections 1 and the roller end sections 2, 3 are clamped together by means of an axial clamping device which comprises two discs 10 and 11 which are arranged on the shaft 7 at an axial distance from one another and an intermediate spring 12 which bears on the one side against the disc 10 and on the other side against -the roller end section 3, the hub 5 of the roller end section 2 bearing against the disc 11. The roller sections 1 and the roller end sections 2 and 3 are thus pressed against one ano-ther by way of their lateral ends. The transport roller thus constitutes one structural unit which can be rotatably journalled~ for example, in a prin-ter by way of the free ends of the shaft 7. Such a -transport roller then serves, for example, for the continuous or intermittent feeding of a sheet-like record carrier. The record carrier can then also be pressed by means of pressure rollers which co-operate with the toroidal rings in order to ensure correct transportO The roller end sections 2 and 3 ~ay also be constructed as so-called spiked rollers for the transport of a record carrier comprising a perforatecl edge~
The Figs 2 and 3 show a roller section 1 with the hub 5 which is connected thereto vla the carrier 4 in grea-ter detail. It is clearly shown -that each roller section 1 comprises, a-t a firs-t lateral end 13 (the left ~9o~
PHO 81.509 5 12.5.1982 end in Fig. 2), a groo~e 8 which opens towards the first lateral end 13 and which is closed by the second lateral end 14, situated opposite the first lateral end 13, of an adjacently situated roller section, so that a toroidal ring arranged in the groove 8 is suitably positioned.
In the described embodiment, the hub 5 of a roller section 1 is situa-ted near the second lateral end 14 and projects be~ond this second lateral end, ~iewed in the axial direction. The hub ~ is connected to the roller section 1 by way of six spoke~like carriers 4.
The carriers ~ are connected to the roller section 1 near the first la-teral end 13. Near this first lateral end the carriers enclose a coaxial recess 15 whose internal dimension corresponds to the external dimension of the hub 5. The recess 15 serves to accommodate the hub 5 of the next roller section which adjoins the first lateral end 13, the part of the hub 5 which projects beyond the second lateral end 14 of the nex-t roller section then being situated in the recess 15. Near the first end 13 the carriers 4 thus bear on the hub 5 of the adjacent roller section 1, so that double a bearing is obtained for each roller section, that is to say on the one hand via its own hub 5 and on the other hand via the hub 5 of the adjacent roller section. The same i~5 applicable to the roller end section 2 and the roller section 1 adjoining the roller end section 3, because the hub 6 of the roller end section 3 engages in the recess 15 thereof.
Because all bearings are effective near the first end 13 wi-th the groove 8 of each roller section9 a suitable support is obtained near the grooves 8 for all roller sections, so that the position of the toroidal rings 9 arranged in the grooves 8 is accurately defined. A very exact and uniform pa-th of the record carrier around the transport roller is thus obtained; this is particularl~
important, for example 7 when the record carrier is fed from the transport roller to a flat supporting surface along which a printing head of a printer is displaced, for exa~ple, an ink jet printing head which co-operates ~07~
P~10 81.509 6 12.5.198 with the record carrier.
In the described embodiment, the continuous hub opening 16 provided in each hub 5 is he~agonal in order -to prevent rotation of the roller sections on the shaft 7 which has a corresponding cross-section. ~vidently, other corresponding cross-sections could also be chosen for this purpose~ for example, a rectangular cross-section etcO
As appears notably from Fig~ 2, the hollow cylindrical interior of the roller section 1 and the exterior of the carriers ~ and the hub 5 have a sligh-tly conical shape, so that these parts can be very simply manufactured by means of the injection moulding technique. The ma-terial used is, for example, a synthetic material so that the manufacture can be simple, accurate and cheap.
Because the transport roller is composed of several short roller sections, each of which is accurately manu-factured, all roller sections being accurately journalled at the area o~ the toroidal rings, the positions of the toroidal rings are accurately defined, so that the sites for the toroidal rings (formed by the grooves) need not be further treated. Consequently~ such a transport roller can be very simply and cheaply manufactured, whilst it still offers suitable transport of the record carrier as well as a regular pa-th thereof around the transport roller.
Obviously, a series of modifications are feasible within the scope of the invention. This is notably applicable to the arrangement and the construction of the hubs and the carriers connecting the hubs to the hollow cylindrical roller sec-tions. In this respect it is to be no-ted that at the areas wh~re the roller sections laterally adjoin one another, mutually engaging fits or supports may be provided.
PHO 81.509 1 12.5.1982 Transport roller for a record carrier in a printer.
The invention relates to a transport roller for a record carrier in a printer, said transport roller com-prising toroidal rings which are adjacently arrange~ ~t a distance from one another in the longitudinal direction of the roller, each of said rings being arranged in a groove on the circumference, -the record carrier being guided by said rings. The toroidal rings are also referred to as O-rings. The rolling body of such a transport roller in commercially available printers consists of one piece.
It is a problem that the grooves for the toroidal rings (which must be proportioned comparatively acurately) must be subjected to a special treatment, because a~l toroidal rings must occupy exactly the same position wi-th respect to the circumferential surface of the rolling body in order to ensure that the path of the record carrier around the transport roller is uniformly cylindrical across the entire length of the roller. It is only then ensured that the path of the record carrier behind the transport roller is regular and exactly defined. This is important, for example, when after departure from the transport roller, the record carrier is fed to a flat supporting surface along which a printing head of a printer is guided to be displaceable in the line direction; in such a case the record carrier must res-t flatly on the supporting surface in order to ensure that the distance between theprinting head and the record carrier remains constan-t. This requirement must be satisfied, for example, in the case of ink jet printing heads.
~t is an object of the i~vention to construct a transport roller of -the kind set forth so -that it can be simply and cheaply manufactured, notably in bulk, without special treatments being required, whilst the path of the 37~
PH0 81~509 2 12.5.1982 record carrier around the transport roller is still regular and e~actl~ de~ined. To this end, the transport roller in accordance with the inven-tion is characterized in that it comprises at least two laterally adjoining, mainly hollow, cylindrical roller sections9 a hub being connected to each roller section via at least one carrier, the roller sections being adjacently arranged on a shaft by wa~ of their hubs so that they are loc~ed a~ainst rotation and are pressed against one another by means of a clamping device~ each roller section comprising one of the grooves which is provided at a first lateral end of the roller section and which is open towards this first latera]
end, the roller section adjoining this first lateral end closing the open side o~ the groove by way of its second la-teral end. Because the transport roller is composed of several roller sections, the individual roller sections are shorter accordingly, so that each section can be simply manufactured with high precision. For example, the separate roller sections can be very cheaply and simply made of plastics by injection moulding. Furthermore, the mounting of the toroidal rings is very simple~ because they can be readily arranged in the laterally open groove of each roller section.
For the construction and arrangement of the hub and the carrier connecting the hub to the hollow cylindrical roller section a series of possibilities exist within the range of the customarily used techniques. For example, for the accurate and stable journalling o~ a roller section on the shaft, use can be made of a hub which extends approximately over the ~u]l length o~ the roller section and which is connected to the hollow cylindrical roller section via a partition-like transverse wall which acts as a carrier. A preferred embodiment of the transpor-t roller in accordance with the invention is charac-terized in -that the hub of a roller section is arranged near the second latera] end, the hub projecting beyond -this second lateral end~ viewed ln the axial direction, the carrier for the ~g~
P~IO 81.509 3 12.5.1982 hub being connected to the roller section near the first lateral end and enclosing a coaxial recess for accommodating the hub of the roller section adjoining this first lateral end, the internal dimension of said coaxial recess corresponding to the external dimension of the hub.
Each hub can thus be constructed to be comparatively short;
accurate journalling of each roller sec-tion9 however~ is still obtained because the hub of one roller section serves also as a journal for the second roller when two roller sections are arranged one behind the other; thus, each roller section is actua~ly journalled twice. Because a bearing for the roller sec-tion is si-tuated near each toroidal ring, it is ensured tha-t the toroidal rings are ver~r exactly positioned. It is a further advantage that the precision manufacture of shorter hubs is easier.
The carrier which connec-ts the hub to the roller section may be constructed9 for example~ as a solid body.
In view of a simple but stable construction and ease of manufacturing, the hub is preferably connected to the roller section by way of at least three spoke-like carriers.
The invention will be described in detail herein-after with reference to the drawing which shows an embodiment in accordance with the invention.
Fig. 1 is a longi-tudinal sectional view of a transport roller consis-ting of several roller sections, Fig. 2 is a longitudinal sec-tional view at an increased scale of a single roller section of the trans-port roller shown in Fig. 1, and 3~ Fig 3 is a cross-sectional view of the roller section shown in Fig. 2.
The transport roller shown in Fig. 1 consists of five identical, hollow, cylindrical roller sec-tions 1 and two roller end sections 2 and 3. The construction of the roller end sec-tion 2 is quite similar -to that of the roller sections 1. The roller sections 1 and the roller end section 2 are each connected to a hub 5 via carriers 4.
9~
PHO ol .509 4 12.5. 1982 lhe roller ~nd section 3 also comprises a hub 6. The roller sectlons 1 and the roller end sec-tions 2 and 3 are adjacently arranged on a shaft 7 by way of -the hubs 5 ancl 6 so that they are locked against rotation, the roller end sections 2 and 3 consti-tuting the lateral ends of the transport roller~ ~ll roller sections are locked against rotation, for example~ in that the shaft 7 consists of a profile~ rod on which the correspondingly shaped hubs o~
the roller sections are fitted. Between each pair of laterally adjacent roller sections 1 and also between the roller end sections 2 and 3 and the adjacent roller sections 1 there is provided a toroidal ring 9 which is arranged in a groo~e 8 at the circumference of -the roller sections 1 and the roller end section 2. The roller sections 1 and the roller end sections 2, 3 are clamped together by means of an axial clamping device which comprises two discs 10 and 11 which are arranged on the shaft 7 at an axial distance from one another and an intermediate spring 12 which bears on the one side against the disc 10 and on the other side against -the roller end section 3, the hub 5 of the roller end section 2 bearing against the disc 11. The roller sections 1 and the roller end sections 2 and 3 are thus pressed against one ano-ther by way of their lateral ends. The transport roller thus constitutes one structural unit which can be rotatably journalled~ for example, in a prin-ter by way of the free ends of the shaft 7. Such a -transport roller then serves, for example, for the continuous or intermittent feeding of a sheet-like record carrier. The record carrier can then also be pressed by means of pressure rollers which co-operate with the toroidal rings in order to ensure correct transportO The roller end sections 2 and 3 ~ay also be constructed as so-called spiked rollers for the transport of a record carrier comprising a perforatecl edge~
The Figs 2 and 3 show a roller section 1 with the hub 5 which is connected thereto vla the carrier 4 in grea-ter detail. It is clearly shown -that each roller section 1 comprises, a-t a firs-t lateral end 13 (the left ~9o~
PHO 81.509 5 12.5.1982 end in Fig. 2), a groo~e 8 which opens towards the first lateral end 13 and which is closed by the second lateral end 14, situated opposite the first lateral end 13, of an adjacently situated roller section, so that a toroidal ring arranged in the groove 8 is suitably positioned.
In the described embodiment, the hub 5 of a roller section 1 is situa-ted near the second lateral end 14 and projects be~ond this second lateral end, ~iewed in the axial direction. The hub ~ is connected to the roller section 1 by way of six spoke~like carriers 4.
The carriers ~ are connected to the roller section 1 near the first la-teral end 13. Near this first lateral end the carriers enclose a coaxial recess 15 whose internal dimension corresponds to the external dimension of the hub 5. The recess 15 serves to accommodate the hub 5 of the next roller section which adjoins the first lateral end 13, the part of the hub 5 which projects beyond the second lateral end 14 of the nex-t roller section then being situated in the recess 15. Near the first end 13 the carriers 4 thus bear on the hub 5 of the adjacent roller section 1, so that double a bearing is obtained for each roller section, that is to say on the one hand via its own hub 5 and on the other hand via the hub 5 of the adjacent roller section. The same i~5 applicable to the roller end section 2 and the roller section 1 adjoining the roller end section 3, because the hub 6 of the roller end section 3 engages in the recess 15 thereof.
Because all bearings are effective near the first end 13 wi-th the groove 8 of each roller section9 a suitable support is obtained near the grooves 8 for all roller sections, so that the position of the toroidal rings 9 arranged in the grooves 8 is accurately defined. A very exact and uniform pa-th of the record carrier around the transport roller is thus obtained; this is particularl~
important, for example 7 when the record carrier is fed from the transport roller to a flat supporting surface along which a printing head of a printer is displaced, for exa~ple, an ink jet printing head which co-operates ~07~
P~10 81.509 6 12.5.198 with the record carrier.
In the described embodiment, the continuous hub opening 16 provided in each hub 5 is he~agonal in order -to prevent rotation of the roller sections on the shaft 7 which has a corresponding cross-section. ~vidently, other corresponding cross-sections could also be chosen for this purpose~ for example, a rectangular cross-section etcO
As appears notably from Fig~ 2, the hollow cylindrical interior of the roller section 1 and the exterior of the carriers ~ and the hub 5 have a sligh-tly conical shape, so that these parts can be very simply manufactured by means of the injection moulding technique. The ma-terial used is, for example, a synthetic material so that the manufacture can be simple, accurate and cheap.
Because the transport roller is composed of several short roller sections, each of which is accurately manu-factured, all roller sections being accurately journalled at the area o~ the toroidal rings, the positions of the toroidal rings are accurately defined, so that the sites for the toroidal rings (formed by the grooves) need not be further treated. Consequently~ such a transport roller can be very simply and cheaply manufactured, whilst it still offers suitable transport of the record carrier as well as a regular pa-th thereof around the transport roller.
Obviously, a series of modifications are feasible within the scope of the invention. This is notably applicable to the arrangement and the construction of the hubs and the carriers connecting the hubs to the hollow cylindrical roller sec-tions. In this respect it is to be no-ted that at the areas wh~re the roller sections laterally adjoin one another, mutually engaging fits or supports may be provided.
Claims (3)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A transport roller for a record carrier in a printer, said transport roller comprising toroidal rings which are adjacently arranged at a distance from one another in the longitudinal direction of the roller, each of said rings being arranged in a groove (8) on the circumference, the record carrier being guided by said rings, characterized in that the transport roller com-prises at least two laterally adjoining, mainly hollow, cylindrical roller sections (1), a hub (5) being connected to each roller section via at least one carrier (4), the roller sections being adjacently arranged on a shaft (7) by way of their hubs so that they are locked against rotation and are pressed against one another by means of a clamping device (10, 11, 12), each roller section comprising one of the grooves (8) which is provided at a first lateral end (13) of the roller section and which is open towards this first lateral end, the roller section adjoining this first lateral end closing the open side of the groove by way of its second lateral end (14).
2. A transport roller as claimed in claim 1, characterized in that the hub (5) of a roller section (1) is arranged near the second lateral end (14), the hub projecting beyond this second lateral end, viewed in the axial direction, the carrier (4) for the hub being connected to the roller section near the first lateral end (13) and enclosing a coaxial recess (15) for accommodating the hub of the roller section adjoining this first lateral end, the internal dimension of said coaxial recess corresponding to the external dimension of the hub.
3. A transport roller as claimed in Claim 1 or 2, characterized in that the hub (5) is connected to the roller section (1) by way of at least three spoke-like carriers (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA2669-81 | 1981-06-15 | ||
| AT0266981A AT381387B (en) | 1981-06-15 | 1981-06-15 | TRANSPORT ROLLER FOR A RECORDING CARRIER FOR A WRITING WORK |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1190799A true CA1190799A (en) | 1985-07-23 |
Family
ID=3538405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000404998A Expired CA1190799A (en) | 1981-06-15 | 1982-06-11 | Transport roller for a record carrier in a printer |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5816876A (en) |
| AT (1) | AT381387B (en) |
| CA (1) | CA1190799A (en) |
| DE (1) | DE3221774A1 (en) |
| FR (1) | FR2507544A1 (en) |
| GB (1) | GB2104623B (en) |
| IT (1) | IT1154008B (en) |
| SE (1) | SE440885B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3306222A1 (en) * | 1983-02-23 | 1984-08-23 | Triumph-Adler Aktiengesellschaft für Büro- und Informationstechnik, 8500 Nürnberg | Method of producing platens for typewriters and similar machines |
| JPS606487A (en) * | 1983-06-03 | 1985-01-14 | Seikosha Co Ltd | Paper feed apparatus of printer |
| DE3524010C1 (en) * | 1985-07-04 | 1987-01-22 | Siemens Ag | Paper guide for printing devices with paper guide elements that can be moved depending on the width |
| JPH01256440A (en) * | 1988-04-06 | 1989-10-12 | Daiichi Kogyo Kk | Light weight paper feed roll and its manufacture |
| GB2238759B (en) * | 1989-11-09 | 1994-05-25 | Dataproducts Corp | High accuracy vacuum belt and pinch roller media transport mechanism |
| DE9317726U1 (en) * | 1992-12-24 | 1994-02-03 | Koenig & Bauer AG, 97080 Würzburg | spindle |
| JP2006285209A (en) * | 2005-03-08 | 2006-10-19 | Bridgestone Corp | Conductive roller and image forming apparatus using the same |
| JP4525588B2 (en) * | 2005-12-22 | 2010-08-18 | コニカミノルタビジネステクノロジーズ株式会社 | Roller structure, paper conveyance roller structure, belt conveyance roller structure, and image forming apparatus |
| NL1033483C2 (en) * | 2007-03-02 | 2008-09-03 | Drent Holding B V | Printing cylinder for offset printing machine, has several cups each having conical surface which partially bears against adjacent cup to form connection between the cups |
| WO2008108631A1 (en) * | 2007-03-02 | 2008-09-12 | Drent Holding B.V. | Printing cylinder or printing sleeve, cup and method for producing a printing cylinder or printing sleeve |
| JP5165983B2 (en) * | 2007-09-28 | 2013-03-21 | 東洋機器工業株式会社 | Roller member for conveying device and conveying device |
| JP5386933B2 (en) * | 2008-10-31 | 2014-01-15 | コニカミノルタ株式会社 | Transfer roller and image forming apparatus |
| JP5434048B2 (en) * | 2008-10-31 | 2014-03-05 | コニカミノルタ株式会社 | Transfer roller and image forming apparatus |
| NL2003101C2 (en) * | 2009-06-29 | 2010-12-30 | Drent Holding B V | PRESSURE CYLINDER, OR PRESSURE CYLINDER HOSE AND METHOD FOR MANUFACTURING IT. |
| JP5847856B2 (en) | 2014-01-14 | 2016-01-27 | キヤノン株式会社 | Conveying apparatus and printing apparatus provided with conveying apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2006880A1 (en) * | 1970-02-14 | 1971-11-11 | Karl Stumpf KG, 4000 Düsseldorf | Conical roller for roller conveyor curves |
-
1981
- 1981-06-15 AT AT0266981A patent/AT381387B/en not_active IP Right Cessation
-
1982
- 1982-06-09 DE DE19823221774 patent/DE3221774A1/en not_active Withdrawn
- 1982-06-11 GB GB08217100A patent/GB2104623B/en not_active Expired
- 1982-06-11 SE SE8203631A patent/SE440885B/en not_active IP Right Cessation
- 1982-06-11 FR FR8210206A patent/FR2507544A1/en active Granted
- 1982-06-11 IT IT21813/82A patent/IT1154008B/en active
- 1982-06-11 CA CA000404998A patent/CA1190799A/en not_active Expired
- 1982-06-12 JP JP57100002A patent/JPS5816876A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2507544B1 (en) | 1985-03-08 |
| JPS5816876A (en) | 1983-01-31 |
| ATA266981A (en) | 1986-02-15 |
| SE440885B (en) | 1985-08-26 |
| GB2104623B (en) | 1985-03-13 |
| IT1154008B (en) | 1987-01-21 |
| FR2507544A1 (en) | 1982-12-17 |
| IT8221813A0 (en) | 1982-06-11 |
| AT381387B (en) | 1986-10-10 |
| SE8203631L (en) | 1982-12-16 |
| GB2104623A (en) | 1983-03-09 |
| DE3221774A1 (en) | 1982-12-30 |
| JPH0156915B2 (en) | 1989-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1190799A (en) | Transport roller for a record carrier in a printer | |
| US4496257A (en) | Transport roller for a record carrier in a printer | |
| EP0922579B1 (en) | Ink roller assembly | |
| DE69728195T2 (en) | Rolling bearing unit with frequency-determining wheel | |
| DE4134434A1 (en) | WHEEL BEARING UNIT WITH A SPEED DETECTING DEVICE | |
| DE3884243T2 (en) | Device for changing the diameter of a disc-shaped award carrier. | |
| EP1903316B1 (en) | Rotary encoder and method of its manufacture | |
| DE9319394U1 (en) | Tensioner pulley for a belt drive | |
| CA1190911A (en) | Winding shaft provided on surface with spool fixing rollers | |
| EP1211482A1 (en) | Angle measuring system | |
| DE3725027A1 (en) | WIRE ROLLER BEARING WITH FLAT WIRE | |
| DE3123421C2 (en) | ||
| US4561703A (en) | Linear recirculating roller bearing assembly | |
| DE2952350A1 (en) | TAPE ROLL FOR VIDEO TAPES | |
| EP0554782A2 (en) | Winding apparatus for magnetic tapes | |
| EP0520348B1 (en) | Gripping device for winding core | |
| US5407117A (en) | Tape guide for a magnetic recording and/or reproducing apparatus | |
| DE3132582A1 (en) | REEL FOR VIDEO TAPES | |
| DE60127359T2 (en) | Tape guide device and tape take-up reel for tape drive | |
| EP0115776B1 (en) | Video recorder drive | |
| DE1092704B (en) | Magnet drum for storage | |
| US5367352A (en) | Direction-changing roller for suspension frames of photographic material developing machines | |
| JPH0555310B2 (en) | ||
| US5351901A (en) | Hub tensioning device | |
| DE9017066U1 (en) | Tape guide device for a magnetic tape cassette |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |