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Ratcheted pivot

Inactive Publication Date: 2001-12-13
ERGOTRON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a ratcheted pivot with a ratchet that reduces friction and force required to move a payload in the upward position. The ratcheted pivot incorporates a ratchet and a ratchet pawl engaging ratchet disks to support a load. The ratcheted pivot can provide desired frictional control in either direction and provide payload stability in any position. The ratcheted pivot is easy to operate and can be used in an upward mode without overcoming excessive friction. The invention provides a ratcheted pivot that is easy to operate and provides stability for the payload in any position.

Problems solved by technology

Prior art pivot devices which support a load about a horizontal pivot axis often provided frictional schemes which required substantial amounts of force to rotate or lift a load in the upward position where a large amount of friction must first be overcome before ascent of the payload was possible.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0025] The operation of the ratcheted pivot 10 provides for rotation of a monitor of other device which secures to the mounting plate 12 about the horizontal axis described by the pivot bolt 44. Rotation is made about the horizontal axis to rotatingly position the mounting plate 12 to gain a desired angle of adjustment suitable for use with the load provided by the monitor or other device supported by the ratcheted pivot 10. Movement and rotation in two directions are provided for. Pivot bolt 44 and nut 46 are tightened across the assembled components of the ratcheted pivot 10 to provide suitable friction to stabilize the ratcheted pivot 10 and the load attached to the mounting plate 12 to prevent the ratcheted pivot 10 and attached load from weight induced rotation about the pivot bolt 44. Friction is applied across the ratcheted pivot 10 in general to bring together components in repositional frictional engagement having relatively small or relatively large areas of contact. An ar...

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PUM

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Abstract

Ratcheted pivot incorporating large and small areas of frictional contact and a ratcheting mechanism to provide for rotational repositioning of a mounting plate and a load about a horizontal axis.

Description

CROSS REFERENCES TO CO-PENDING APPLICATIONS[0001] None.[0002] 1. Field of the Invention[0003] The present invention is for a pivot, and more particularly, pertains to a pivot incorporating a ratchet for reduced force operation about the pivot[0004] 2. Description of the Prior Art[0005] Prior art pivot devices which support a load about a horizontal pivot axis often provided frictional schemes which required substantial amounts of force to rotate or lift a load in the upward position where a large amount of friction must first be overcome before ascent of the payload was possible.[0006] The present invention provides a ratcheted pivot which overcomes the drawbacks of the prior art by providing a ratcheted pivot which provides a free-wheeling or reduced friction action when the payload is moving upward but maintains full friction control when the payload is moved downward.[0007] The general purpose of the present invention is a ratcheted pivot.[0008] According to an embodiment of the ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F16C11/04
CPCF16C11/045F16M11/10F16M13/02F16M2200/024
Inventor SWEERE, HARRY C.SCHELLER, DENNIS M.FLUHRER, ROBERT W.
Owner ERGOTRON
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