Variable clutch mechanism and correction tape dispenser with variable clutch mechanism

摘要

A clutch mechanism for a tape dispenser, for example, includes a first reel, a second reel, a biasing element, and a friction element. The first and second reels are rotatably disposed on first and second shafts. The biasing element is disposed between the second reel and second shaft such that the second reel is movable in a radial direction between first and second positions relative to the second shaft and the biasing element biases the second reel into the first position. The friction element extends around the first and second reels and arranged to generate a first normal force acting on the second reel when the second reel is in a first position, relative to the second shaft, and a second normal force acting on the second reel when the second reel is in a second position, relative to the second shaft.

主权项

1. A clutch mechanism, comprising:
a first reel rotatably disposed on a first shaft; a second reel rotatably disposed on a second shaft; a biasing element disposed between the second reel and the second shaft such that the second reel is movable in a radial direction relative to the second shaft between a first position and at least a second position and wherein the biasing element biases the second reel into the first position; and a friction element extending around the first and second reels, and arranged to generate a first normal force acting on the second reel when the second reel is in the first position and a second normal force acting on the second reel when the second reel is in the second position, wherein the biasing element comprises a hub rotatably disposed on the second shaft and a plurality of flexible fingers extending radially away from the hub, the flexible fingers having proximal ends connected to the hub and distal ends spaced away from the hub, wherein one or more of the distal ends contacts the second reel.