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Publication numberUS3643778 A
Publication typeGrant
Publication dateFeb 22, 1972
Filing dateSep 25, 1970
Priority dateSep 25, 1970
Publication numberUS 3643778 A, US 3643778A, US-A-3643778, US3643778 A, US3643778A
InventorsAnderson Carl P
Original AssigneeScm Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Typewriter ribbon cartridge guide support
US 3643778 A
Abstract
A typewriter support for guiding a ribbon cartridge to and retaining the cartridge in a rest position. The support includes a U-shaped member which is positioned near the machine side frame, a spring urged detent for retaining the cartridge after it is inserted to a predetermined depth within the guide support, and a biasing means for ejecting the cartridge from the support upon manual release of the detent means.
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Description  (OCR text may contain errors)

Unite States Anderson TYPEWRITER RIBBON CARTRIDGE GUIDE SUPPORT inventor: Carl l. Anderson, Homer, N.Y.

Assignee: SCM Corporation, New York, N.Y.

Filed: Sept. 25, 1970 Appl. No.2 75,790

Related US. Application Data Continuation of Ser. No. 710,064, Mar. 4, 1968, abandoned.

US. Cl ..197/151, 197/170 Int. Cl. ..B4lj 33/14, B41j 35/04 Field ofSearch ..197/151, 153,153.5, 168,170,

References Cited UNITED STATES PATENTS 1/1959 Gates ..197/15l Feb. 22, 1972 2,883,029 4/1959 Gray ..197/l62 3,065,837 11/1962 Dilvlo ....197/l51 X 3,104,750 9/1963 Canny et al .....l97/l5l 3,272,304 9/1966 Morelli 1 197/151 3,349,887 10/1967 Goff ..197/l51 3,395,871 8/1968 Ackermann et al. ..242/198 Primary Examiner-Robert E. Pulfrey Assistant Examiner-Stephen C. Pellegrino Attorney-Carlos Nieves, Milton Wolson and Harvery Zeller [57] ABSTRACT A typewriter support for guiding a ribbon cartridge to and retaining the cartridge in a rest position. The support includes a U-shaped member which is positioned near the machine side frame, a spring urged detent for retaining the cartridge after it is inserted to a predetermined depth within the guide support, and a biasing means for ejecting the cartridge from the support upon manual release of the detent means.

5 Claims, 3 Drawing Figures PAIENIEUFEB221912 3. 643 7 78 sum 1 or 2 INVENTOR. CARL P, ANDERSON BY Wail AGENT PAIENTEUFEB 22 1972 3.643 .7 7 8 I SHEET 2 or 2 INVENTOR. CARL P ANDERSON AGENT TYPEWRITER RIBBON CARTRIDGE GUIDE SUPPORT This application is a continuation of application Ser. No. 7 I 0,064, filed Mar. 4, 1968, now abandoned.

BACKGROUND OF THE INVENTION This invention relates to typewriter ribbon spool supports and more particularly to the type used for supporting a non separable, single-unit ribbon cartridge.

The typewriter art, through necessity, is becoming ever more heavily laden with the provision of cartridge-type ribbons thus providing the user a method of ribbon installation that is both clean and simple. Most known cartridges are of two spool construction wherein separate housings are provide for the spools but are joined in a side-by-side relationship by an integral plastic member. The joining member is provided with a weakened section for separating the spool housings and placing them in their respective supports after the ribbon is inserted in the machine vibrator.

The next advance within the art and with which the present invention is associated, is the provision of a single-unit ribbon cartridge having a ribbon vibrator carried thereby which needs only to be inserted into the machine thereby eliminating the required manipulations encountered with the separable cartridge type. A single-unit ribbon cartridge of this type is disclosed in US. Pat. application Ser. No. 710,085 filed of even date herewith by Carl P. Anderson and assigned to the assignee of the instant application.

SUMMARY OF THE INVENTION The present invention provides a guide support for a typewriter ribbon cartridge, the support having a locking means and a biasing means whereby a single-element, vibrator equipped ribbon cartridge is guided to and locked in its normal rest. position by the support upon insertion of the cartridge into the machine and whereby the cartridge may be selectively partially ejected from the machine automatically.

DESCRIPTION OF THE DRAWING FIG. I is a right front perspective view of the cartridge support illustrating its location within the typewriter and showing by hidden lines a single element type ribbon cartridge supported therein;

FIG. 2 is a top plan view of FIG. I, and

FIG. 3 is a front elevational view of the cartridge,

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIGS. I and 2, the guide support is mainly com prised of a U-shaped member which is rigidly mounted to a frame member 12 by a pair of rivets 14. The support has a pair of elongated slots 16 in the member upper and lower flanges l8 and 20 respectively and has a back wall 19 integrally connecting the flanges l8 and 20. The frame member 12 is rigidly assembled to right side frame 21 by any suitable means adjacent the platen 23. A post 22 is vertically disposed within the slots 16 and is biased to the right by a pair of springs l4 (one of which is shown) which are interconnected between the post ends and appropriate anchors 26 on the outward surfaces of the flanges I8 and 20.

A detent button 28 is rigidly fixed to the lower end of a detent slide link 30 which is slideably mounted within a frame bracket 32. Button 28 is normally biased upwards by a spring 34 so the uppermost end 36 of the link 30 extends through an appropriate slot 37 in the lower support flange 20. The link end 36 is substantially beveled on its surface facing away from the typewriter so the link will be cammed and displaced downward when the cartridge 38 is inserted from the right between the guide flanges 18 and 20. When the cartridge 38 reaches its predetermined normal rest position as indicated by the hidden lines, the link 30 is biased upward by spring 34 to the position shown for retaining the cartridge in its rest position. In the rest position, the cartridge 38 has an arm 39 extending therefrom for guiding the ribbon 42 from the cartridge to the print point defined by the segment supported type guide 41 and back to the cartridge. The cartridge is substantially enclosed having a bottom portion 43, a top portion 44, a back side 45, front side 46, and an end wall 47. As the cartridge is inserted, the body of the cartridge contacts and carries with it the post 22 longitudinally within the slot 16 against the urgency of the post springs 24. This provides a standby means for partially ejecting the cartridge 38 when the detent button28 is depressed and the link 30 is lowered to release the cartridge from its locked position.

The outward edges 40 of the U--shaped guide support 10 are formed away from the guide U-shape proper so as to provide a more convenient substantially horizontal insertion of the cartridge.

The present guide support for a ribbon cartridge of the single unit type therefore provides a support wherein the operator may install the cartridge in its normal rest position within the machine by simply locating the left end portion of the cartridge within the guide support and thereafter push it to an automatically locked position.

The present invention also provides a support which selectively and automatically partially ejects the ribbon cartridge when desired by providing a manually operable locking detent means and a biasing means which is conditioned by the cartridge to urge the cartridge in a direction opposite to its installation direction.

The invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiment is therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

What is claimed and desired to be secured by Letters Patent l. A ribbon cartridge support for a typewriter for permitting a ribbon cartridge to be laterally inserted into said typewriter and laterally removed therefrom, said support comprising:

a guide means rigidly mounted on said typewriter and having an opening adjacent the side of said typewriter;

said guide means having at least a pair of spaced walls extending from said side of said typewriter toward a print point in said typewriter but not to said print point and having an opening within said typewriter prior to said print point; and means normally in the path of movement of said cartridge for locking said cartridge within said guide means when said cartridge extends through said opening within said typewriter to a point adjacent said print point; and means yieldably mounting said locking means in said path of movement enabling said cartridge to be inserted into said guide means.

2. A ribbon cartridge support as defined in claim I further including means connected to said support for yieldingly engaging said cartridge during the lateral insertion of said cartridge into said guide means and for biasing said cartridge for partial ejection thereof from said guide means upon the release of said cartridge by said locking means.

3. A ribbon cartridge support as defined in claim 2 wherein said guide means includes a lower flange for guiding the underside of the cartridge and a back wall extending from said lower flange for guiding the back side of the cartridge.

4. A ribbon cartridge support as defined in claim 3 wherein said guide means includes an upper flange so that said lower flange, said upper flange and said back wall form an approximately horizontally exposed U-shaped opening for receiving the cartridge.

5, A ribbon cartridge support as defined in claim 4 wherein said means for yieldingly engaging said cartridge comprises a member projecting through a slot in said lower flange in the path of insertion of said cartridge and a spring connected to said member for biasing said member in a direction opposite to the direction of insertion of said cartridge.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2869705 *Jul 5, 1957Jan 20, 1959Gates Jr Eugene HOutboard ribbon supply apparatus for typewriters
US2883029 *Feb 25, 1957Apr 21, 1959Alessandra GrayTypewriter ribbon attachment
US3065837 *Nov 22, 1960Nov 27, 1962Di Luco EugeneRibbon spool holder
US3104750 *Dec 6, 1960Sep 24, 1963 Ribbon mechanism
US3272304 *May 10, 1965Sep 13, 1966Royal Typewriter Co IncTypewriter ribbon package
US3349887 *Dec 28, 1964Oct 31, 1967IbmRibbon mechanism
US3395871 *May 24, 1966Aug 6, 1968Bosch Elektronik PhotokinoCartridge receiving means for a tape recorder
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3777871 *May 3, 1972Dec 11, 1973Scm CorpRibbon guide for typewriter ribbon cartridge
US3799315 *May 3, 1972Mar 26, 1974Scm CorpRibbon guide for typewriter ribbon cartridge
US3804227 *May 3, 1972Apr 16, 1974Scm CorpTypewriter ribbon cartridge
US3830351 *Sep 13, 1972Aug 20, 1974Scm CorpTypewriter ribbon cartridge for endless loop ribbon
US3897866 *Nov 12, 1973Aug 5, 1975Scm CorpVertically insertable typewriter ribbon cartridge
US3897867 *Nov 12, 1973Aug 5, 1975Scm CorpRibbon feed mechanism for ink ribbon cartridges
US3904016 *Jul 25, 1973Sep 9, 1975Triumph Werke Nuernberg AgTypewriter ribbon arrangement having interchangeable ribbon loadable cartridges with attached movable ribbon lifters
US3976182 *Jun 23, 1975Aug 24, 1976Scm CorporationAutomatic function mechanism for typewriters
US3976184 *Jun 23, 1975Aug 24, 1976Scm CorporationRibbon cartridge for dual automatic typewriter function
US3977510 *Jun 23, 1975Aug 31, 1976Scm CorporationAutomatic function mechanism for typewriters
US3978965 *Jun 23, 1975Sep 7, 1976Scm CorporationRibbon cartridge for automatic typewriter function
US3985219 *Jun 23, 1975Oct 12, 1976Scm CorporationRibbon cartridge for automatic typewriter function
US3987885 *Jun 23, 1975Oct 26, 1976Scm CorporationAutomatic single and repeat function mechanism for typewriters
US3991874 *Jun 23, 1975Nov 16, 1976Scm CorporationAutomatic function mechanism for typewriters
US4156573 *Feb 26, 1976May 29, 1979Scm CorporationTypewriter ribbon cartridge
US4243330 *Jan 15, 1979Jan 6, 1981Burroughs CorporationDot printer adjustable endless loop ribbon cartridge transport apparatus
US4310257 *Dec 14, 1979Jan 12, 1982International Business Machines CorporationTypewriter cartridge lock-down
US4350451 *Feb 14, 1980Sep 21, 1982General Electric CompanySlidably positionable cartridge having skewed ribbon feed
US4350452 *Mar 31, 1980Sep 21, 1982International Business Machines CorporationRibbon loading system for a typewriter or the like using a sidemounted ribbon cartridge having a detachable ribbon guide
US4915516 *Jul 21, 1988Apr 10, 1990Hitachi, Ltd.Thermal transfer recording apparatus with ink paper cassette
USRE34521 *Apr 7, 1992Jan 25, 1994Hitachi, Ltd.Thermal transfer recording apparatus with ink paper cassette
Classifications
U.S. Classification400/208, 400/242, 400/693.1
International ClassificationB41J31/10
Cooperative ClassificationB41J31/10
European ClassificationB41J31/10
Legal Events
DateCodeEventDescription
Aug 20, 1987ASAssignment
Owner name: SMITH CORONA CORPORATION, 65 LOCUST AVENUE, NEW CA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SCM CORPORATION;REEL/FRAME:004810/0544
Effective date: 19870804