Power transmission system with a gearwheel and a toothed rack
AssigneeDeutsche Thomson-Brandt GmbH
InventorFritz Weisser
Life of this patent
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Abstract
A power transmission system with a gearwheel and a toothed rack, having an engagement securing system that ensures increased power transmission and protection of the toothing in the end region of the rack. According to the invention the engagement securing system comprises a lug disposed on the rack, which lug engages a guide connected to the gearwheel. In the exemplary embodiment the guide comprises a groove disposed on a disk coupled to the gearwheel. Advantageously, no additional individual parts are required. The range of applications includes an automatic transport securing system in recording or playback equipment for optical, magneto-optical or other recording media, as well as other rack drive systems that require increased power transmission in the end region of the rack.
Claims13
Power transmission system with a gearwheel and a toothed rack for movable writing or reading systems for optical recording media, comprising:
- an engagement securing system that ensures that the gearwheel and toothed rack remain in engagement in an end region of the rack, wherein the engagement securing system is formed by a lug disposed on the rack and adapted to engage in a guide connected to the gearwheel.
Power transmission system comprising a gearwheel guided on a shaft clamped at one end, a toothed rack operatively coupled to the gearwheel, and an engagement securing system that ensures that the gearwheel and toothed rack remain in engagement in an end region of the rack, wherein the engagement securing system is formed by a lug disposed on the rack and adapted to engage a guide connected to the gearwheel.
A power transmission apparatus comprising:
- a carriage for translating utilization means;
- a rack having gear teeth thereon attached to said carriage;
- a gear wheel arranged for engagement with said rack, and coupled to a power source, for conditioning said rack for linear translation;
- a lug attached proximate to one end of said rack;
- a grooved element attached to said gear wheel, said grooved element arranged to engage said lug to constrain said rack and said gear wheel in engaged relation when said gear wheel is proximate said one end of said rack.
Dependencies are inferred from the claim text.