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1. WO1996003592 - THREE-DIMENSIONAL ROLLER LOCKING SPRAGS

Publication Number WO/1996/003592
Publication Date 08.02.1996
International Application No. PCT/US1995/009591
International Filing Date 27.07.1995
Chapter 2 Demand Filed 26.07.1995
IPC
F16D 41/066 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
41Freewheels or freewheel clutches
06with intermediate wedging coupling members between an inner and an outer surface
064the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
066all members having the same size and only one of the two surfaces being cylindrical
F16D 41/07 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
41Freewheels or freewheel clutches
06with intermediate wedging coupling members between an inner and an outer surface
069the intermediate members wedging by pivoting or rocking, e.g. sprags
07between two cylindrical surfaces
CPC
F16D 41/064
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
41Freewheels or freewheel clutches
06with intermediate wedging coupling members between an inner and an outer surface
064the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
F16D 41/07
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
41Freewheels or freewheel clutches
06with intermediate wedging coupling members between an inner and an outer surface
069the intermediate members wedging by pivoting or rocking, e.g. sprags
07between two cylindrical surfaces
Applicants
  • THE UNITED STATES OF AMERICA, represented by THE SECRETARY, UNITED STATES DEPARTMENT OF COMMERCE [US/US]; Washington, DC 20231, US
Inventors
  • VRANISH, John, M.; US
Agents
  • OLIFF, James, A. ; Oliff & Berridge P.O. Box 19928 Alexandria, VA 22320, US
Priority Data
08/280,97927.07.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) THREE-DIMENSIONAL ROLLER LOCKING SPRAGS
(FR) HARICOTS DE BLOCAGE A GALET TRIDIMENSIONNELS
Abstract
(EN)
The invention comprises a torque coupling sprag system which provides contact between the sides of at least one groove (36, 55) and at least two contact surfaces (42, 44, 46, 48) angled with respect to the sprag member (30) located between a drive member (32) and a reaction member (34). The surface contacts (42, 44, 46, 48) between the members (30, 32, 34) include various combinations of surface segments arranged in a predetermined manner to define a desired configuration. The contact radius (R2) of the 3-D sprag member (30) is significantly larger than its rolling radius (R1); however, these radii (R2, R1) can be varied in size and shape independently of each other, particularly the contact radius.
(FR)
L'invention a pour objet un système de haricot pour transmission de couple qui assure un contact entre les côtés d'au moins une rainure (36, 55) et au moins deux surfaces de contact (42, 44, 46, 48) formant un angle par rapport au haricot (30). Ce dernier est placé entre un élément d'entraînement (32) et un élément de réaction (34). Les contacts de surface (42, 44, 46, 48) entre les éléments (30, 32, 34) comprennent diverses combinaisons de segments de surface, placés de manière prédéterminée, pour définir une configuration requise. Le rayon de contact (R2) du haricot tridimensionnel (30) est fortement supérieur à son rayon de roulement (R1); toutefois, ces rayons (R2, R1) peuvent présenter des tailles et des formes différentes, indépendamment l'un de l'autre, en particulier le rayon de contact.
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