Patent EP0016657A2 successfully refreshed from Google Patents.
EP0016657A2
Expired / Lapsed
EP
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Cartridge for an inked ribbon for typewriters and the like
Assignee: Olivetti SpA
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Filing: 1980-03-24
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Granted: —
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Expires: 2000-03-24
Abstract
Abstract A cartnage ror an inked ribbon for type bar typewriters comprises a container 20 adapted to be mounted on one side of the printing point and a terminal part 24 which guides a length of ribbon 18 up the printing point and reverses the direction thereof for re-entry of the ribbon into the container. Two return surfaces 29 and 30 of the terminal part carry the ribbon re-entering the container back at the same height as the emerging ribbon. The container 20 is of elongated shape and is fixable removably to a support 21 on the machine rocking in front of a platen 11 in such a manner that the terminal part 24 of the cartridge is disposed below the printing line. There is provided a mechanism for actuating the inked ribbon which comprises a control element actuatable by the type bars and a toggle joint 75,76 which rocks the cartridge support 21 for producing a precise raising of the ribbon in response to variable stroke control actuated by the selected key. A control pin 60 is rotatable on the support and is actuated by the control element to engage vertically a driving hub 49 of the cartridge and fees the inked ribbon 18 in front of the printing point.
Inventors
- 👤 Walter Albrile
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 16:25
CPC Classifications
B; B41; B41J; B41J32/00; B41J32/02
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
77 words
Cartridge for an inked ribbon for typewriters and the like, comprising a container adapted to be mounted on one side of the printing point and a terminal part which guides a length of ribbon up to the printing point and reverses the direction thereof for re-entry of the ribbon into the container, characterised by two return surfaces of the terminal part which carry the ribbon re-entering the container back at the same height as the emerging ribbon.
Claim 2
Dependent Claim
77 words
Cartridge for an inked ribbon for typewriters and the like, comprising a container adapted to be mounted on one side of the printing point and a terminal part which guides a length of ribbon up to the printing point and reverses the direction thereof for re-entry of the ribbon into the container, characterised by two return surfaces of the terminal part which carry the ribbon re-entering the container back at the same height as the emerging ribbon.
Claim 3
Dependent Claim
33 words
Cartridge as claimed in claim 1, characterised in that the said-surfaces are substantially parallel and inclined at 45 0 with respect to the direction of feed of the ribbon emerging from the container.
Claim 4
Dependent Claim
43 words
Cartridge as claimed in claim 1 or 2, characterised in that the terminal part of the cartridge comprises a plate provided with an edge which changes the direction of advance of the reversed ribbon through 900and constitutes one of the two return surfaces.
Claim 5
Dependent Claim
31 words
Cartridge as claimed in any one of the preceding claims, characterised in that one of the two return surfaces is constituted by an inclined projection adjacent a slit in the container.
Claim 6
Dependent Claim
37 words
Cartridge as claimed in claims 3 and 4, characterised in that the said projection is constituted by a second plate and the two plates form a channel for the passage of the ribbon turned through 90 .
Claim 7
Dependent Claim
24 words
6 . Cartridge as claimed in claim 4 or 5, characterised in that the said plate is in one piece with the said projection.
Claim 8
Dependent Claim
54 words
Cartridge as in any one of the preceding claims, characterised in that the container has a bottom; a cover spaced from the bottom a little more than the height of the inked ribbon, and two side walls converging towards the printing point and to which the said terminal part is fixed in projecting arrangement.
Claim 9
Dependent Claim
36 words
Cartridge as claimed in claims 6 and 7, characterised in that the side walls and the said terminal part define two slits for the entrance and exit, respectively, of the ribbon with respect to the container.
Claim 10
Dependent Claim
38 words
Cartridge as claimed in claim 8, characterised in that the container is composed of two parts comprising the bottom and the cover and the said terminal part comprises an element fitted between the two parts of the container.
Claim 11
Dependent Claim
68 words
Cartridge as claimed in any one of the preceding claims, more particularly for typewriters of the hammer type, characterised in that the container is of elongated shape and is fixable removably to a support on the machine rocking in front of the platen, in such manner that only the terminal part of the cartridge is disposed below the printing line between the hammer guiding fork and the platen.
Claim 12
Dependent Claim
88 words
Cartridge for an inked ribbon closed in the form of a loop for typewriters and the like, characterised by a magazine of elongated shape which receives the ribbon in a random state and which, at its two opposite ends, is provided respectively with a pair of rollers disposed in a median zone of the magazine for feeding the ribbon and introducing it into the said median zone, and with friction means for tensioning the ribbon in the striking zone during its feed by means of the said rollers.
Claim 13
Dependent Claim
88 words
Cartridge for an inked ribbon closed in the form of a loop for typewriters and the like, characterised by a magazine of elongated shape which receives the ribbon in a random state and which, at its two opposite ends, is provided respectively with a pair of rollers disposed in a median zone of the magazine for feeding the ribbon and introducing it into the said median zone, and with friction means for tensioning the ribbon in the striking zone during its feed by means of the said rollers.
Claim 14
Dependent Claim
29 words
Cartridge as claimed in claim 10, characterised that the said magazine is disposed between the diagonal of a parallelepipedal body and along an arm directed towards the printing point.
Claim 15
Dependent Claim
30 words
Cartridge as claimed in claim 12, characterised in that the feed rollers are rotatable in the said parallelepipedal body and the said friction means are disposed along the said arm.
Claim 16
Dependent Claim
28 words
Cartridge as claimed in claim 12 or 13, characterised by hook means carried by the parallelepipedal body for fixing it removably to a rocking support on the machine.
Claim 17
Dependent Claim
36 words
Mechanism for actuating the inked ribbon of typewriters, for example manual typewriters, characterised by a toggle joint for producing a precise raising of the ribbon.in response to a variable stroke control actuated by the selected character.
Claim 18
Dependent Claim
36 words
Mechanism for actuating the inked ribbon of typewriters, for example manual typewriters, characterised by a toggle joint for producing a precise raising of the ribbon.in response to a variable stroke control actuated by the selected character.
Claim 19
Dependent Claim
34 words
Actuating mechanism as claimed in claim 15, characterised by a rocking lever which forms one element of the toggle and actuates by means of a tooth a toothed wheel for feeding the said ribbon.
Claim 20
Dependent Claim
33 words
Mechanism as claimed in claim 15 or 16, characterised in that the ribbon is carried by a cartridge and the toggle acts on a rocking support to which the said cartridge is fixed.
Claim 21
Dependent Claim
113 words
Typewriter of the hammer type comprising an inked ribbon cartridge adapted to be mounted removably on a support on one side of the printing point for guiding a length of ribbon in front of the said point, characterised by a control element adapted to be actuated by each of the hammers which causes the support to rock about a spindle substantially perpendicular to the striking plane to raise the said length of ribbon in response to the rocking of the cartridge, and in that a control pin is rotatable on the said support, the control pin being actuated by the said control element to engage vertically a driving hub of the said cartridge.
Claim 22
Dependent Claim
113 words
Typewriter of the hammer type comprising an inked ribbon cartridge adapted to be mounted removably on a support on one side of the printing point for guiding a length of ribbon in front of the said point, characterised by a control element adapted to be actuated by each of the hammers which causes the support to rock about a spindle substantially perpendicular to the striking plane to raise the said length of ribbon in response to the rocking of the cartridge, and in that a control pin is rotatable on the said support, the control pin being actuated by the said control element to engage vertically a driving hub of the said cartridge.
Claim 23
Dependent Claim
27 words
Typewriter as claimed in claim 18, characterised by a crank for raising the said support and acting in the proximity of the rocking axis of the support.
Claim 24
Dependent Claim
33 words
Typewriter as claimed in claim 18, characterised in that the said crank is pivoted to the fixed frame of the machine and is connected to the said support by a pin and slot.
Claim 25
Dependent Claim
45 words
.21. Typewriter as claimed in any one of claims 18 to 20, characterised in that the said control element effects the rotation of the driving shaft by means of a tooth and effects the rocking of the said support by means of a toggle joint.
Claim 26
Dependent Claim
46 words
Typewriter as claimed in claims 19 or 20 and 21, characterised in that the said tooth is carried by a rocking lever and the toggle is formed by the said rocking lever and a connecting rod between the support raising crank and the said rocking lever.
Claim 27
Dependent Claim
45 words
Typewriter as claimed in claim 22, characterised in that the said rocking lever is pivoted on the axis of the toothed wheel and the said tooth is mounted resiliently on the said lever for engaging the toothing of a wheel connected to the driving shaft.
Claim 28
Dependent Claim
46 words
Typewriter as claimed in any'of claims 18 to 23, characterised in that the said driving shaft is keyed to a toothed wheel in mesh with a toothed transmission wheel rotatable on the Fixed frame cf the machine borne in the inoperative and in the working position.
Claim 29
Dependent Claim
21 words
Typewriter as claimed in claims 20 and 21, characterised in that the said toothing is carried by the toothed transmission wheel.
Claim 30
Dependent Claim
29 words
Typewriter as in any one of claims 18 to 25, characterised in that the said shaft is inclined at 15° with respect to the horizontal plane of the typewriter.
Claim 31
Dependent Claim
77 words
Manually operated typewriter comprising a plurality of leaf springs having a fixing end and an end for restoring the keys, and a mechanism for raising and feeding the inked ribbon, characterised by a frame for controlling the said mechanism which co-operates with the said leaf springs in an intermediate zone of the springs disposed between the restoring end and the fixing end and by a spring element which keeps the frame in contact with the leaf springs.
Claim 32
Dependent Claim
77 words
Manually operated typewriter comprising a plurality of leaf springs having a fixing end and an end for restoring the keys, and a mechanism for raising and feeding the inked ribbon, characterised by a frame for controlling the said mechanism which co-operates with the said leaf springs in an intermediate zone of the springs disposed between the restoring end and the fixing end and by a spring element which keeps the frame in contact with the leaf springs.
Claim 33
Dependent Claim
28 words
Typewriter as claimed in claim 27, characterised in that the said device for adjusting the action of the said spring to vary the touch of the said keys.
Claim 34
Dependent Claim
47 words
Typewriter as claimed in claim 28, characterised in that the said device comprises a lever to which the said spring is attached, a cam element co-operating with the said lever, and a knob adapted to be positioned with a snap action in a series of adjustment locations.
Claim 35
Dependent Claim
45 words
30 Typewriter as claimed in claim 29, characterised in that the said knob is of plastic and the snap positioning is effected by a resiliently mounted ball on the knob co-operating with a hole of a plurality of holes in the france of the typewriter.
References Cited (Backward Citations)
No citation records indexed.
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