Winder

• US 4,869,130 A
• Filed: 03/10/1987
• Issued: 09/26/1989
• Est. Priority Date: 03/10/1987
• Status: Expired due to Fees

• Current Assignee: Ryszard Wiecko
• Original Assignee: Ryszard Wiecko
• Inventors: Wiecko, Ryszard
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US07/024,011
• Time in Patent Office: 931 Days
• Field of Search: 74/194, 74/198, 74/740, 74/691, 74/785, 74/796, 74/190.5, 74/190, 242/54 R, 242/75.5, 242/45, 254/274
• US Class Current: 475/208
• CPC Class Codes: B65H 18/10 Mechanisms in which power is applied to web-roll spindle
• CPC Class Codes: B65H 59/382 using mechanical means
• CPC Class Codes: F16H 15/28 with external friction surface

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.

Claims

1. 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.

2. The winder of claim 1 wherein the two cams have identical cam curves regulating the winding and unwinding processes respectively.

3. The winder of claim 2 wherein said clutch means includes a roller radially mounted on said control shaft;

a sleeve disposed about said control shaft;

a clutch disc slideably mounted to one end of said sleeve to engage said radially mounted roller;

a spring disposed about said sleeve to indice a preload on said clutch plate;

an angle gear drive fixedly attached to the other end of said sleeve, said angle gear drive including a shaft and pinion gear means for transmitting rotating motion from said angle gear drive shaft to said iris plate.

4. The winder of claim 2 wherein the two cams have identical cam curves regulating the winding and unwinding process respectively.

5. A winder for winding and unwinding of materials, said winder comprising:

a housing member;

a ball variator secured in said housing member, said ball variator including an input shaft extending out of one end of said housing, an output shaft coaxial with said input shaft and extending toward the opposite end of said housing, a series of balls rotatably mounted on spindles, a input plate operatively connected to said input shaft and said balls such that rotation of said input shaft causes rotation of said balls; and

output drive cone fixedly attached to said output shaft and engaging said balls; and

iris plate including a cammed slot which receives one end of said spindles such that rotation of said iris plate causes speed variation between said input shaft and said output shaft;

a control mechanism for controlling the speed and tension of said winder, said control mechanism including a control lever comprising two radially extending shafts, each radially extending shaft including a roller in the end thereof, said control lever rotataby mounted on said output shaft;

speed reducer gear means for transmitting reduced rotating motion from said output shaft to said control lever;

a control shaft rotatably mounted in said housing with one of its ends extending out of one side of said housing;

a pair of cams, one for controlling a winding process and one for controlling a unwinding process, each of said cams rigidly mounted to said control shaft and each of said cams disposed to engage a corresponding roller of said control lever;

a control arm including a sliding weight, said control arm received in the end of said control shaft which extends out of said housing;

clutch means including drive means for transmitting rotating motion from said cams to said iris plate to cause rotation of said iris plate.