Force modifying device

• US 4,953,748 A
• Filed: 02/14/1990
• Issued: 09/04/1990
• Est. Priority Date: 08/23/1988
• Status: Expired due to Fees

• Current Assignee: Diebold Incorporated (Diebold Nixdorf, Incorporated)
• Original Assignee: Diebold Incorporated (Diebold Nixdorf, Incorporated)
• Inventors: Wheelock, Norman R.
• Primary Examiner(s): Bartuska, F. J.
• Application Number:
  US07/480,370
• Time in Patent Office: 202 Days
• Field of Search: 221/52, 221/59, 221/198, 221/227, 221/231, 221/279, 221/280, 312/61, 312/71, 211/51, 211/59.3, 248/572, 267/172, 254/374, 271/160
• US Class Current: 221/59
• CPC Class Codes: B65H 1/12 comprising spring B65H1/022 takes precedence
• CPC Class Codes: G07D 11/13 with internal means for handling valuable papers

Abstract

The present invention provides a system for transmitting a biasing force created by a force generating component to a load remote from the force component. the system includes a first elongated flexible element having a first end and a second end, the first end of the first flexible element being connectable to the force generating component, and a second elongated flexible element having a first end and a second end, the first end of the second flexible element being connectable to the load. A force modifying member rotatable about a fixed axis is provided and includes first and second outwardly facing surfaces of predetermined lengths which curve about the axis. The second ends of the elongated flexible elements are connected respectively to the first and second surfaces at one end of the surface, wherein the fexible elements are operable to be wound or unwound on the respective surfaces as the member rotates about the axis. The first flexible element produces a force moment about the axis in a first direction biasing the force modifying member into rotation in the first direction. The second element exerts a resultant biasing force on the load. The first and second surfaces are dimensioned such that rotation of the member about the axis in the first direction causes one of the elements to be wound onto its respective surface as the other element is unwound from the its respective surface top vary the force moments about the axis, to render the biasing force on the load generally more uniform.

Claims

1. An elongated, generally rectangular currency canister for moving a stack of sheet currency toward a dispensing position at one end thereof where individual sheets are dispensed, said canister having a first lengthwise compartment for holding said stack of currency, a second lengthwise compartment, and a device for biasing said stack in the direction of said dispensing position, said biasing means comprising:

plate means disposed within said first and second compartments movable along a predetermined plate path between a first position remote from said dispensing opening and a second position adjacent said dispensing opening for pushing said stack in said first compartment toward said dispensing position,

plate cable means having a first end and second end, said first end being connected to said plate means in said second compartment,

a tension spring disposed in said second compartment having a stationary end fixed relative to said dispensing position and a free end movable along a predetermined spring path within said second compartment between a first position wherein said spring is extended a predetermined distance and a second contracted position, said spring defining a tension force having a predetermined value when in said first position which diminishes as said spring retracts along said spring path toward said second position,

spring cable means having a first and a second end, said first end being connected to said free end of said tension spring, and

a force modifying member disposed in said second compartment for transmitting said tension force in said spring to said plate means to move said plate means along said plate path, said modifying member being rotatable through at least 270 degrees about an axis fixed relative to said dispensing opening from a first rotation position corresponding to said first spring position and second rotation position corresponding to said second spring position and having first and second outwardly facing noncircular arcuate surfaces to receive said tension spring cable means and said plate cable means respectively, said first arcuate surface being generally helical in shape and spiraling outwardly, said second ends of said cable means being attached to said modifying member wherein said spring cable means is disposed on said first surface when said spring is in said first position, said tension force biasing said modifying member to rotate in a predetermined direction wherein said plate cable means is wound onto said second arcuate surface and said spring cable means is unwound from said first arcuate surface and said rotation of said member producing a resultant force on said plate means via said plate cable means to force said plate means toward said dispensing position, said first and second surfaces being dimensioned to vary the respective distances between said spring cable means and said plate cable means and said axis as said modifying member rotates, the ratio of the distance between said spring cable and said axis relative to the distance between said plate cable and said axis continually increasing as said modifying member rotates from said first position to said second position.

2. A biasing device as defined in claim 1 wherein such distance between said spring cable means and said axis increases as said force modifying member rotates in said predetermined direction.

3. A biasing device as defined in claim 1 wherein said spring cable means and said plate cable means are wire cables.

4. A biasing device as defined in claim 1 wherein said spring cable means and said plate cable means are timing chains.