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US 4,093,060 AGranted
Typewriter ribbon feed device
AssigneeVEB Kombinat Zentronik
InventorPeter Muntschick
Life of this patent
Estimating the term…
Abstract
A typewriter ribbon feed device having a transport lever provided at one end with a transport pawl and at the other end with a fork guide engaged by a pin fixed to a driving lever while at one end of the driving lever a suspension hole for a traction bar and a restoring spring is provided, the bearing points of a transport lever, a transport wheel axis and a driving lever being positioned on a straight line.
Claims3
An ink ribbon feed device for a typewriter comprising:
- a support, a toothed transport wheel mounted for rotation on said support about a first axis;
- a ribbon spool carried by said support;
- a transport lever pivotally mounted on said support for pivotal movement about a second axis;
- a transport pawl rotatably carried by said transport lever;
- a spring mounted between said transport pawl and said transport lever to urge said transport pawl into engagement with the toothed transport wheel;
- a forked end on said transport lever remote from said transport pawl;
- a driving lever pivotally mounted on said support for pivotal movement about a third axis, said first, second and third axes being positioned substantially along a straight connecting line;
- a pin carried by said driving lever;
- means for operatively interconnecting said driving lever and said transport lever whereby pivotal movement of said driving lever causes pivotal movement of said transport lever, said means being constituted by the engagement of said pin in said forked end of said transport lever;
- a traction bar connected to said driving lever;
- a universal bar of the typewriter connected to said traction bar;
- and
- a restoring spring mounted between said driving lever and said support, wherein said pin includes an enlarged head portion which rests against said support.
10 more elements
Dependencies are inferred from the claim text.