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US 12,698,665 B2Granted
Adjustable retraction mechanism
AssigneeElvo Ltd
InventorsEli Volkun, Lidor Shalom Elharar
Life of this patent
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Abstract
An adjustable retraction mechanism includes a main housing, the main housing includes a cord wrapped around a torsion spring and rigidly attached thereto at one end thereof. The retraction mechanism further includes an adjustable cord friction mechanism configured for reducing a force applied on the cord. The friction mechanism includes at least one adjustable pressing member which applies a friction force on the cord.
Claims11
An adjustable retraction mechanism (10) comprising:
- a main housing (20), the main housing (20) comprising:
- a cord (16) wrapped around a torsion spring (14) and rigidly attached thereto at one end thereof;
- an adjustable cord friction mechanism (22) configured for reducing a pulling force applied on the cord (16) by the spring (14), the friction mechanism (22) comprising at least one adjustable pressing member (24) applying a friction force on the cord (16), wherein the at least one adjustable pressing member (24) comprises a replaceable contact member (28) which contacts the cord (16);
- a spring housing (12) located between the spring (14) and the cord (16), the spring (14) is located within and attached to the spring housing (12) and the cord is wrapped around, and attached at one end, to the spring housing (12), wherein the spring housing (12) is fully enclosed within the main housing (20);
- and
- an adjustable preload mechanism (32), wherein the preload mechanism (32) comprises a winding member (34) which comprises at least two fixation interfaces (40) and a fixation member (36) located in one of the fixation interfaces (40).
3 more elements
Dependencies are inferred from the claim text.