US 4,869,130 AGranted

Winder

OwnerRyszard Wieckoinventor

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Abstract

A winder for winding and unwinding of materials, which utilizes a ball variator and planetary speed reducer in combination with a mechanism functioning as a regulator of speed output and tension desired for the materials. During a winding operation, the growing winding diameter of the material causes a rise in torque at the winding shaft and through a series of planet pinions, an increase of thrust at the ring gear of the planetary speed reducer. This increase of thrust is followed by rotation of the ring gear and control cam via a control lever. The rotation is transmitted from the control cam, through a clutch mounted on the control shaft and a series of gears to an iris plate of the ball variator and through the control shaft to a weight lever. The rotation of the iris plate causes a tilt of the balls of the variator, determining the drive ratio and output speed variation. The rotation of the weight lever causes tension desired for the material.

Claims5

Dependent claims

A winder for winding and unwinding of materials, said winder comprising in combination:

A. a housing member,
B. a ball variator secured in said housing member, having an input shaft extending out of one end of the housing and coaxial with an elongated output shaft extending toward the opposite end of the housing and fixedly carrying a sun gear at the end near the opposite end of the housing, and an iris plate;
C. a planetary speed reducer mounted in said housing having planet arm, defined by said winding shaft, and with planet pinions engaging said sun gear of said ball variator,
D. a mechanism controlling speed output and tension required for materials, mounted in said housing comprising:
a control twin lever slideably splined in the ring gear and rotatably mounted in said planet arm, comprising radially extending shafts, and rollers, which engage corresponding control cams,
a control cam, including a sliding weight,
a control shaft, rotatably mounted in said housing with one of its ends extending out of one side of the housing to receive control arm,
a cam for controlling a process of winding, rigidly mounted onto said control shaft, to engage a corresponding roller of said twin lever,
a cam for controlling a process of unwinding, rigidly mounted onto said control shaft, to engage corresponding roller of said twin lever,
E. a clutch, comprising,
a roller rotatably mounted on a radially extending out pin and rigidly mounted onto said control shaft, engaging,
a clutch disc, slideably splined onto the one end of a sleeve, at the bottom of its ramps, and
a spring to induce initial preload on said clutch disc, wound on said sleeve which carries at its other end an angle gear drive which includes a shaft extending out carrying pinion which engages said iris plate.

10 more elements

Dependencies are inferred from the claim text.