EP0034026B1 - Cartridge for a typewriter typing ribbon - Google Patents
Cartridge for a typewriter typing ribbon Download PDFInfo
- Publication number
- EP0034026B1 EP0034026B1 EP81300407A EP81300407A EP0034026B1 EP 0034026 B1 EP0034026 B1 EP 0034026B1 EP 81300407 A EP81300407 A EP 81300407A EP 81300407 A EP81300407 A EP 81300407A EP 0034026 B1 EP0034026 B1 EP 0034026B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ribbon
- cartridge
- container
- support
- adjacent
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- 210000002105 tongue Anatomy 0.000 description 4
- 238000003466 welding Methods 0.000 description 2
- 230000002517 constrictor effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
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
- B41J32/00—Ink-ribbon cartridges
Definitions
- This invention relates to a cartridge for a typing ribbon for a typewriter of the hammer type, and according to the introductory part of claim 1.
- a cartridge of this type is known, in particular for portable typewriters, comprising a magazine of elongated shape which terminates in a lateral arm extending on one side of the cartridge to the typing zone.
- a cartridge of this type can be easily handled and is adequate for a portable machine.
- it is not suitable for typewriters of standard type with a typing capacity for which the ribbon contained in the elongated magazine of the known cartridge does not suffice.
- the object of the present invention is to provide a cartridge for a typing ribbon which has a high typing capacity, which is reliable in use and can be easily replaced in the machine.
- a cartridge 16 containing a typing ribbon 58 may be a cartridge 16A ( Figure 3) for an inked ribbon 58A or a cartridge 16B ( Figure 5) for a carbon ribbon 588, and is mounted on a support 17 in a hammer typewritter, comprising a paper support platen 18 and a type guide fork 19.
- the support 17 swivels about an axis perpendicular to the platen 18 for the purpose of raising and lowering the ribbon at the printing point, and comprises a flat base and two upstanding stop strips 21 and 22 adjacent to the roller 18.
- Each strip 21, 22 comprises two shoulders or bearing surfaces 38, 39 on which the cartridge 16 ( Figure 1) normally rests when mounted on the support 17.
- the support 17 comprises a third strip 41 ( Figures 3 and 5) projecting from the base of the support 17 on the opposite side to the strips 21 and 22.
- a pressing element or leaf spring 42 is pivoted on a pin 43 on the lower part 47 of the strip 41, and is guided by a tongue 44 housed in a slot 46 in the lower part 47 of the strip 41.
- the leaf spring 42 comprises an L shoulder 48 ( Figure 2) arranged to seat in an upper opening or slot 49 in the strip 41.
- the strip 41 also has two shoulders or bearing surfaces 51 ( Figures 3 and 5) similar to and in the same horizontal plane as the bearing surfaces 38 and 39 of the strips 21 and 22 for supporting the cartridge 16.
- the base of the support 17 carries a pin 56 ( Figure 2) on which a drive wheel 57 is rotatable for feeding the ribbon 58.
- the drive wheel 57 is a gear wheel with a toothed bush 59 normally engaged with a gear collar 61 in the cartridge 16.
- a pawl 62 cooperates with the teeth of the gear 5 to feed the ribbon 58 in each typing cycle.
- the cartridge 16 for the ribbon comprises a container 66 and a lateral arm 67 for guiding the ribbon 58 between the container 66 and the typing point on the horizontal axis of the paper support platen 18.
- the container 66 comprises a pair of abutment surfaces 68 ( Figures 3 and 5) and 69 provided on that side of the container which is adjacent to the platen 18 when the cartridge is mounted on the support 17, these being inclined in opposite senses and spaced from the lateral arm 67 and lying in planes substantially parallel to the swivel axis of the support 17.
- the abutment surfaces 68 and 69 are arranged for engagement by the hooks 23 and 24 in order to fix the cartridge on the support 17.
- the container 66 comprises a pair of reaction surfaces 71 and 72, which are adjacent to the abutment surfaces 68 and 69 and are arranged to cooperate with the strips 21 and 22 to determine the lateral position of the cartridge 16 relative to the typing point.
- the container 66 comprises a third abutment surface 73 provided on the side of the container 66 opposite the abutment surfaces 68 and 69 and arranged for engagement by the L shoulder 48 of the leaf spring 42, to ensure contact between the reaction surfaces 71 and 72, and the strips 21 and 22.
- the container 66 comprises a base part 74, in which the opposition surfaces 68 and 69 are provided, and which is closed at the top by a cover 75.
- the lateral arm 67 ( Figures 4 and 6) comprises a support 76 with two bores 77 and 78 receiving two pins 78 and 81 of the base 74 and two pins 82 and 83 of the cover 75 in such a manner that the arm 67 is fixed between the base 74 and cover 75.
- the arm 67 ( Figures 4 and 6) is constituted by a strip rigid at one end with the support 76 and at the other end with a U fork 86 comprising a striking zone 87 for the ribbon.
- the U fork 86 comprises a terminal part 88 provided with two edges 89 and 91 disposed to form a V with an angle of 90°, the surface of which reverse the direction of the ribbon through 180°.
- a plate 92 is fixed by pins 93 to bores 94 on the terminal part 88.
- the ink ribbon 58A leaves the container 66 behind the arm 67, passes into the striking zone 87 and then engages with the edges 89 and 91, reverses its direction by 180°, passes below the striking zone 87 and engages with two deviation surfaces 96 and 97 inclined at 45°, arranged to turn the ribbon 58A firstly upwards and then horizontal, in order to convey it guided by a strip 98 into the container 66, at the same level as the ribbon emerging from the container.
- the carbon ribbon 58B leaves from a lower part 99 of the container 66, passes below the striking zone 87, engages with the edges 91 and 89 so that it reverses its direction through 180°, passes into the striking zone 87 and is then conveyed behind the arm 67 to re-enter the container 66 above the emerging part of the ribbon.
- the container 66 of the cartridge 16A especially provided for the ink ribbon 58A, comprises a base 74, a rear wall 111, in which the abutment surfaces 68 and 69 and the reaction surfaces 71 and 72 are provided, a front wall 112, in which the abutment surface 73 is provided, a semi-cylindrical side wall 113 which connects the rear wall 111 to the front wall 112, and an inclined wall 114.
- the end parts of the walls 114 and 111 define a zone 116, into which the lateral arm 67 is fixed and through which the ribbon 58A enters and leaves the container 66.
- Partitions 117, 118, 119, 121 and 122 constituted by internal walls of the container 66, define a magazine zone 123, in which the endless ink ribbon 58A is disposed in turns distributed in bulk.
- the magazine zone 123 defined by the walls 121 and 122, is provided with an inlet aperture 126 for the ribbon 58A, adjacent to a pair of toothed drive rollers 127 and 128 for the unidirectional feed of the ink ribbon 58A.
- the magazine 123 widens out in the form of a substantially spiral section, and proceeds by way of the two walls 117 and 119, which are bounded by the end wall 118.
- the wall 118 is provided in its turn with an outlet slot 124 for the ribbon adjacent to the lateral arm 67.
- the slot 124 is bounded by two inclined walls 120 which project into the magazine 123 and define a narrow passage for the ribbon aligned with the zone 116.
- a constriction for the ribbon constituted by steps or ribs 131, 133 and 132, 134 of substantially rectangular cross-section, projecting from the base 74 and from the cover 75.
- the two steps 131 and 132 are substantially parallel to the wall 118 and the two steps 133 and 134 are substantially semi-circular, surround the walls 120 and are tangential to the steps 131 and 132.
- a segment 135 of the cover 75 having a height less than the steps 131, 132 and the projections 133, 134 closes the top of the slot 124 and rests on the edge of the wall 118.
- the steps 131, 132 and 133, 134 and the segment 135 exert a constricting effect for the emerging ribbon, to prevent the extraction of unwanted turns from the magazine 123.
- the toothed roller 127 is rigid at the bottom with the gear bush 61 ( Figure 2) which is arranged for engagement by the teeth 59 of the drive element 57, and is rigid at the top with a disc 136 ( Figure 7) provided with a knurled edge for the manual feeding of the ribbon and its tensioning after mounting the cartridge on the support 17.
- the two gears 127 and 128 are each constituted by two equal gear wheels spaced apart by a sleeve 129.
- the toothed roller 128 is idly mounted in the cartridge, and by the action of a spring 137 on its sleeve 129 is normally engaged with the drive roller 127, and pinches a portion of the ribbon.
- two tongues 138 embrace the sleeves 129 of the two rollers 127 and 128, and convey the ribbon towards the magazine zone 123.
- the cover 75 ( Figures 7 and 8) is fixed to the container 66 by welding, and also by three pins 141 inserted into three bores 142 in the container 66.
- the cartridge 16B especially provided for the carbon ribbon 58B comprises the container 66 with a support or lower part 149 ( Figure 11) in which a feed spool 151 for the carbon ribbon is housed.
- the lower part 149 comprises a rear wall 152 and a front wall 153 connected together by a semi-cylindrical side wall 154 and two side walls 156 and 157 which are shaped so as to define a corridor 158 for the outlet of the carbon ribbon.
- a core 161 of the feed spool 151 is rotatable about a sleeve 162 projecting from the lower part 149.
- the spool 151 normally rests on a ring of foam rubber 164 held in a recess 163 in the lower part 149.
- a bore 166 allows passage of the teeth 59 of the drive element 57 ( Figure 2) which engage with the gear brush 61 for the unidirectional feed of the ribbon.
- the ribbon unwinds from the feed spool 151, bears against a roller 167 rotatable about a pin 168 in the lower part 149, and is conveyed towards the corridor 158.
- the support 149 is fixed to the container 66 by welding and by means of three pins 169 fitted into three bores (not shown) of the container 66.
- the container 66 is constituted by the base 74, a rear wall 171 in which the abutment surfaces 68 and 69 and the reaction surfaces 71 and 72 are provided, a front wall 172 in which the abutment surfaces 7B is provided, a semi-circular side wall 173 which connects the rear wall 171 to the front wall 172, and an inclined wall 174 which with the rear wall 171 defines a zone 176 into which the lateral arm 67 is fitted and where the ribbon enters the container 66.
- the container 66 houses a take-up spool 181 on which the carbon ribbon is wound after it has been used in the striking zone.
- the take-up spool 181 is constituted by a core 182 rotatably mounted on a support 183 which has a bridge part pivoted on a pin 184 fixed to the base 74 and retained by the cover 75.
- the cover 75 is fixed in its turn to the container 66 by two pins 197 which are fitted into two bores 198 in the container 66.
- the container 66 rotatably supports a feed roller 186, and the support 183 causes the core 182 to move along a trajectory substantially perpendicular to the axis of the roller 186.
- a tension spring 187 normally keeps the support 183 rotated in a clockwise direction and arrested by the take-up spool 181 acting against a gear wheel 188 of the feed roller 186.
- the support 183 comprises two projecting hemisherical pips 189 which slide on the base 74, which has a recess 191 of sector form to house the end of a pin 192, about which the sleeve 182 of the collection spool 181 is rotatable.
- the feed roller 186 comprises the knurled disc 136 for manually operating the roller.
- guide means project from the base 74 of the container 66, these comprising a pin 193 and a roller 194 rotatable about a pin 196, and arranged to convey the carbon ribbon from the zone 176 in proximity to the lateral arm 67 towards the take-up spool 181.
- Both the cartridge 16A for the ink ribbon and the cartridge 16B for the carbon ribbon are mounted on the hammer typewriter in the same manner.
- the cartridge 16 is disposed above the plate 17, taking care to keep the strips 21, 22 and 41 aligned with the relative reaction surfaces 71, 72 and 73.
- the lower parts of the opposition surfaces 68 and 69 engage with the upper parts of the hooks 23 and 24, causing them to rotate one clockwise and the other anticlockwise against the action of the spring 28.
- the lower edge of the opposition surface 73 ( Figure 2) engages the L shoulder 48, causing the leaf spring 42 to deflect and thus enable the cartridge to be lowered until it is halted with its base 74 against the bearing surfaces 38, 39 and 51. This enables the teeth 59 of the drive element 57 to engage with the ring gear 61.
- the spring 28 rotates the hooks 23 and 24 until they become engaged with the respective abutment surfaces 68 and 69.
- the L shoulder 48 engages the respective abutment surfaces 73, thus urging the reaction surfaces 71 and 72 of the cartridge against the respective strips 21 and 22, so removably locking the cartridge on the support 17. If during this operation the ribbon should become slightly slack, the knurled disc 136 is manually rotated clockwise until the ribbon is again under tension.
Landscapes
- Impression-Transfer Materials And Handling Thereof (AREA)
Description
- This invention relates to a cartridge for a typing ribbon for a typewriter of the hammer type, and according to the introductory part of claim 1.
- A cartridge of this type is known, in particular for portable typewriters, comprising a magazine of elongated shape which terminates in a lateral arm extending on one side of the cartridge to the typing zone. A cartridge of this type can be easily handled and is adequate for a portable machine. However, it is not suitable for typewriters of standard type with a typing capacity for which the ribbon contained in the elongated magazine of the known cartridge does not suffice.
- The object of the present invention is to provide a cartridge for a typing ribbon which has a high typing capacity, which is reliable in use and can be easily replaced in the machine.
- The object is met by the cartridge of the present invention, which is defined in the characterising part of claim 1.
- The invention will now be described in more detail, by way of example, with reference to the accompanying drawings, in which:
- Figure 1 is a partial plan view of a typing ribbon cartridge embodying the invention mounted on a support in a hammer typewriter;
- Figure 2 is a partial side view of Figure 1 to an enlarged scale;
- Figure 3 is a partial rear longitudinal view, to an enlarged scale, of the cartridge and support of Figure 1 especially provided for an ink ribbon;
- Figure 4 is a partial front longitudinal view of the cartridge of Figure 3;
- Figure 5 is a partial rear longitudinal view, to an enlarged scale, of the cartridge and support of Figure 1 especially provided for a carbon ribbon;
- Figure 6 is a partial front longitudinal view of the cartridge of Figure 5;
- Figures 7 and 8 are partial plan views of the cover of the cartridge of Figure 3 and of the cartridge;
- Figures 9, 10 and 11 are partial plan views of the cartridge of Figure 5; and
- Figure 12 is a partial longitudinal view of the cartridge of Figure 11.
- With reference to Figure 1, a
cartridge 16 containing atyping ribbon 58 may be acartridge 16A (Figure 3) for an inkedribbon 58A or acartridge 16B (Figure 5) for acarbon ribbon 588, and is mounted on asupport 17 in a hammer typewritter, comprising apaper support platen 18 and atype guide fork 19. Thesupport 17 swivels about an axis perpendicular to theplaten 18 for the purpose of raising and lowering the ribbon at the printing point, and comprises a flat base and twoupstanding stop strips roller 18. On eachstrip hook 23, 24 (Figures 3 and 5), held flat against the strip at the top by atongue 26, 27 bent out of therespective strip spring 28 fitted to thelower ends hooks respective tongues fixed stops strip bearing surfaces support 17. - The
support 17 comprises a third strip 41 (Figures 3 and 5) projecting from the base of thesupport 17 on the opposite side to thestrips leaf spring 42 is pivoted on apin 43 on thelower part 47 of thestrip 41, and is guided by atongue 44 housed in aslot 46 in thelower part 47 of thestrip 41. Theleaf spring 42 comprises an L shoulder 48 (Figure 2) arranged to seat in an upper opening orslot 49 in thestrip 41. Thestrip 41 also has two shoulders or bearing surfaces 51 (Figures 3 and 5) similar to and in the same horizontal plane as thebearing surfaces strips cartridge 16. - The base of the
support 17 carries a pin 56 (Figure 2) on which adrive wheel 57 is rotatable for feeding theribbon 58. Thedrive wheel 57 is a gear wheel with atoothed bush 59 normally engaged with agear collar 61 in thecartridge 16. Apawl 62 cooperates with the teeth of the gear 5 to feed theribbon 58 in each typing cycle. - The
cartridge 16 for the ribbon comprises acontainer 66 and alateral arm 67 for guiding theribbon 58 between thecontainer 66 and the typing point on the horizontal axis of thepaper support platen 18. Thecontainer 66 comprises a pair of abutment surfaces 68 (Figures 3 and 5) and 69 provided on that side of the container which is adjacent to theplaten 18 when the cartridge is mounted on thesupport 17, these being inclined in opposite senses and spaced from thelateral arm 67 and lying in planes substantially parallel to the swivel axis of thesupport 17. Theabutment surfaces hooks support 17. - The
container 66 comprises a pair ofreaction surfaces abutment surfaces strips cartridge 16 relative to the typing point. Thecontainer 66 comprises athird abutment surface 73 provided on the side of thecontainer 66 opposite theabutment surfaces L shoulder 48 of theleaf spring 42, to ensure contact between thereaction surfaces strips container 66 comprises abase part 74, in which theopposition surfaces cover 75. - The lateral arm 67 (Figures 4 and 6) comprises a
support 76 with twobores pins base 74 and twopins cover 75 in such a manner that thearm 67 is fixed between thebase 74 and cover 75. - The arm 67 (Figures 4 and 6) is constituted by a strip rigid at one end with the
support 76 and at the other end with aU fork 86 comprising astriking zone 87 for the ribbon. TheU fork 86 comprises aterminal part 88 provided with twoedges plate 92 is fixed by pins 93 to bores 94 on theterminal part 88. - With reference to Figures 4 and 8, the
ink ribbon 58A leaves thecontainer 66 behind thearm 67, passes into thestriking zone 87 and then engages with theedges striking zone 87 and engages with twodeviation surfaces ribbon 58A firstly upwards and then horizontal, in order to convey it guided by astrip 98 into thecontainer 66, at the same level as the ribbon emerging from the container. - With reference to Figure 6, the
carbon ribbon 58B leaves from a lower part 99 of thecontainer 66, passes below thestriking zone 87, engages with theedges striking zone 87 and is then conveyed behind thearm 67 to re-enter thecontainer 66 above the emerging part of the ribbon. - With reference to Figures 7 and 8, the
container 66 of thecartridge 16A, especially provided for theink ribbon 58A, comprises abase 74, arear wall 111, in which theabutment surfaces reaction surfaces front wall 112, in which theabutment surface 73 is provided, asemi-cylindrical side wall 113 which connects therear wall 111 to thefront wall 112, and aninclined wall 114. The end parts of thewalls zone 116, into which thelateral arm 67 is fixed and through which theribbon 58A enters and leaves thecontainer 66. -
Partitions container 66, define amagazine zone 123, in which theendless ink ribbon 58A is disposed in turns distributed in bulk. Themagazine zone 123, defined by thewalls inlet aperture 126 for theribbon 58A, adjacent to a pair oftoothed drive rollers ink ribbon 58A. Starting from thezone 126, themagazine 123 widens out in the form of a substantially spiral section, and proceeds by way of the twowalls end wall 118. Thewall 118 is provided in its turn with anoutlet slot 124 for the ribbon adjacent to thelateral arm 67. - The
slot 124 is bounded by twoinclined walls 120 which project into themagazine 123 and define a narrow passage for the ribbon aligned with thezone 116. About theslot 124 there is provided a constriction for the ribbon constituted by steps orribs base 74 and from thecover 75. The twosteps wall 118 and the twosteps 133 and 134 are substantially semi-circular, surround thewalls 120 and are tangential to thesteps segment 135 of thecover 75, having a height less than thesteps projections 133, 134 closes the top of theslot 124 and rests on the edge of thewall 118. Thesteps segment 135 exert a constricting effect for the emerging ribbon, to prevent the extraction of unwanted turns from themagazine 123. - The
toothed roller 127 is rigid at the bottom with the gear bush 61 (Figure 2) which is arranged for engagement by theteeth 59 of thedrive element 57, and is rigid at the top with a disc 136 (Figure 7) provided with a knurled edge for the manual feeding of the ribbon and its tensioning after mounting the cartridge on thesupport 17. - The two
gears 127 and 128 (Figure 8) are each constituted by two equal gear wheels spaced apart by asleeve 129. Thetoothed roller 128 is idly mounted in the cartridge, and by the action of aspring 137 on itssleeve 129 is normally engaged with thedrive roller 127, and pinches a portion of the ribbon. Finally, twotongues 138 embrace thesleeves 129 of the tworollers magazine zone 123. - The cover 75 (Figures 7 and 8) is fixed to the
container 66 by welding, and also by threepins 141 inserted into threebores 142 in thecontainer 66. - With reference to Figures 8 to 11, the
cartridge 16B especially provided for thecarbon ribbon 58B comprises thecontainer 66 with a support or lower part 149 (Figure 11) in which afeed spool 151 for the carbon ribbon is housed. Thelower part 149 comprises arear wall 152 and afront wall 153 connected together by asemi-cylindrical side wall 154 and twoside walls corridor 158 for the outlet of the carbon ribbon. - A
core 161 of thefeed spool 151 is rotatable about asleeve 162 projecting from thelower part 149. Thespool 151 normally rests on a ring offoam rubber 164 held in arecess 163 in thelower part 149. Abore 166 allows passage of theteeth 59 of the drive element 57 (Figure 2) which engage with thegear brush 61 for the unidirectional feed of the ribbon. The ribbon unwinds from thefeed spool 151, bears against aroller 167 rotatable about apin 168 in thelower part 149, and is conveyed towards thecorridor 158. Thesupport 149 is fixed to thecontainer 66 by welding and by means of threepins 169 fitted into three bores (not shown) of thecontainer 66. - The
container 66 is constituted by thebase 74, arear wall 171 in which theabutment surfaces reaction surfaces front wall 172 in which the abutment surfaces 7B is provided, asemi-circular side wall 173 which connects therear wall 171 to thefront wall 172, and aninclined wall 174 which with therear wall 171 defines azone 176 into which thelateral arm 67 is fitted and where the ribbon enters thecontainer 66. - The
container 66 houses a take-up spool 181 on which the carbon ribbon is wound after it has been used in the striking zone. The take-upspool 181 is constituted by acore 182 rotatably mounted on asupport 183 which has a bridge part pivoted on apin 184 fixed to thebase 74 and retained by thecover 75. Thecover 75 is fixed in its turn to thecontainer 66 by twopins 197 which are fitted into twobores 198 in thecontainer 66. - Between the
walls container 66 rotatably supports afeed roller 186, and thesupport 183 causes thecore 182 to move along a trajectory substantially perpendicular to the axis of theroller 186. Atension spring 187 normally keeps thesupport 183 rotated in a clockwise direction and arrested by the take-upspool 181 acting against agear wheel 188 of thefeed roller 186. Thesupport 183 comprises two projectinghemisherical pips 189 which slide on thebase 74, which has arecess 191 of sector form to house the end of apin 192, about which thesleeve 182 of thecollection spool 181 is rotatable. - At its top, the
feed roller 186 comprises theknurled disc 136 for manually operating the roller. In addition, guide means project from thebase 74 of thecontainer 66, these comprising apin 193 and aroller 194 rotatable about apin 196, and arranged to convey the carbon ribbon from thezone 176 in proximity to thelateral arm 67 towards the take-upspool 181. - Under the action of the
spring 187, the teeth of thegear wheel 188 engage the outer most turns of the ribbon wound on thespool 181, in proximity to the central part of the carbon ribbon. Rotation of theroller 186, by means of theteeth 59 of thedrive element 57 causes the take-upspool 181 to rotate, and the carbon ribbon to wind in incremental steps on to thesleeve 182. - Both the
cartridge 16A for the ink ribbon and thecartridge 16B for the carbon ribbon are mounted on the hammer typewriter in the same manner. For this purpose, thecartridge 16 is disposed above theplate 17, taking care to keep thestrips plate 17, the lower parts of the opposition surfaces 68 and 69 engage with the upper parts of thehooks spring 28. - Simultaneously, the lower edge of the opposition surface 73 (Figure 2) engages the
L shoulder 48, causing theleaf spring 42 to deflect and thus enable the cartridge to be lowered until it is halted with itsbase 74 against the bearing surfaces 38, 39 and 51. This enables theteeth 59 of thedrive element 57 to engage with thering gear 61. When the cartridge is stopped by the bearing surfaces 38, 39 and 51, thespring 28 rotates thehooks L shoulder 48 engages the respective abutment surfaces 73, thus urging the reaction surfaces 71 and 72 of the cartridge against therespective strips support 17. If during this operation the ribbon should become slightly slack, theknurled disc 136 is manually rotated clockwise until the ribbon is again under tension.
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT67187/80A IT1128030B (en) | 1980-02-08 | 1980-02-08 | CARTRIDGE FOR A WRITING TAPE OF WRITING MACHINES |
IT6718780 | 1980-02-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0034026A1 EP0034026A1 (en) | 1981-08-19 |
EP0034026B1 true EP0034026B1 (en) | 1984-04-18 |
Family
ID=11300312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81300407A Expired EP0034026B1 (en) | 1980-02-08 | 1981-01-30 | Cartridge for a typewriter typing ribbon |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0034026B1 (en) |
JP (1) | JPS56139984A (en) |
BR (1) | BR8100735A (en) |
DE (1) | DE3163137D1 (en) |
ES (1) | ES8205656A1 (en) |
IT (1) | IT1128030B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2554391B1 (en) * | 1983-11-07 | 1994-05-13 | Canon Kk | INK RIBBON CASSETTE AND PRINTING APPARATUS USING THE SAME |
JP3564848B2 (en) * | 1996-02-16 | 2004-09-15 | ブラザー工業株式会社 | Tape cassette |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3830351A (en) * | 1972-09-13 | 1974-08-20 | Scm Corp | Typewriter ribbon cartridge for endless loop ribbon |
US3814231A (en) * | 1973-04-24 | 1974-06-04 | Scm Corp | Stuffed ribbon cartridge |
US3897866A (en) * | 1973-11-12 | 1975-08-05 | Scm Corp | Vertically insertable typewriter ribbon cartridge |
IT1024899B (en) * | 1974-11-25 | 1978-07-20 | Olivetti Ing C S P A | REMOVABLE CARTRIDGE FOR A CAREON TAPE OF TELESCRIPTING ACCOUNTING MACHINES AND SIMILAR OFFICE MACHINES |
-
1980
- 1980-02-08 IT IT67187/80A patent/IT1128030B/en active
-
1981
- 1981-01-30 DE DE8181300407T patent/DE3163137D1/en not_active Expired
- 1981-01-30 EP EP81300407A patent/EP0034026B1/en not_active Expired
- 1981-02-06 ES ES499200A patent/ES8205656A1/en not_active Expired
- 1981-02-06 BR BR8100735A patent/BR8100735A/en unknown
- 1981-02-09 JP JP1792781A patent/JPS56139984A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
IT1128030B (en) | 1986-05-28 |
IT8067187A0 (en) | 1980-02-08 |
BR8100735A (en) | 1981-08-18 |
DE3163137D1 (en) | 1984-05-24 |
ES499200A0 (en) | 1982-06-16 |
EP0034026A1 (en) | 1981-08-19 |
ES8205656A1 (en) | 1982-06-16 |
JPS56139984A (en) | 1981-10-31 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): CH DE FR GB |
|
17P | Request for examination filed |
Effective date: 19811026 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): CH DE FR GB LI |
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