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1. WO2013002284 - PULLEY DEVICE

Publication Number WO/2013/002284
Publication Date 03.01.2013
International Application No. PCT/JP2012/066430
International Filing Date 27.06.2012
IPC
F16H 55/48 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
HGEARING
55Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
32Friction members
36Pulleys
48manufactured exclusively or in part of non-metallic material, e.g. plastics
F16C 19/06 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
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
19Bearings with rolling contact, for exclusively rotary movement
02with bearing balls essentially of the same size in one or more circular rows
04for radial load mainly
06with a single row of balls
F16C 33/58 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
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
33Parts of bearings; Special methods for making bearings or parts thereof
30Parts of ball or roller bearings
58Raceways; Race rings
F16C 35/067 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
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
35Rigid support of bearing units; Housings, e.g. caps, covers
04in the case of ball or roller bearings
06Mounting of ball or roller bearings; Fixing them onto shaft or in housing
067Fixing them in a housing
CPC
F16C 19/06
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
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
19Bearings with rolling contact, for exclusively rotary movement
02with bearing balls essentially of the same size in one or more circular rows
04for radial load mainly
06with a single row or balls
F16C 2240/42
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
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
2240Specified values or numerical ranges of parameters; Relations between them
40Linear dimensions, e.g. length, radius, thickness, gap
42Groove sizes
F16C 2361/63
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
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
2361Apparatus or articles in engineering in general
63Gears with belts and pulleys
F16C 33/581
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
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
33Parts of bearings; Special methods for making bearings or parts thereof
30Parts of ball or roller bearings
58Raceways; Race rings
581integral with other parts, e.g. with housings or machine elements such as shafts or gear wheels
F16C 33/583
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
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
33Parts of bearings; Special methods for making bearings or parts thereof
30Parts of ball or roller bearings
58Raceways; Race rings
583Details of specific parts of races
F16C 33/586
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
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
33Parts of bearings; Special methods for making bearings or parts thereof
30Parts of ball or roller bearings
58Raceways; Race rings
583Details of specific parts of races
586outside the space between the races, e.g. end faces or bore of inner ring
Applicants
  • 日本精工株式会社 NSK Ltd. [JP]/[JP] (AllExceptUS)
  • 市川 智也 ICHIKAWA, Tomoya [JP]/[JP] (UsOnly)
  • 田原 稔 TAHARA, Minoru [JP]/[JP] (UsOnly)
Inventors
  • 市川 智也 ICHIKAWA, Tomoya
  • 田原 稔 TAHARA, Minoru
Agents
  • 特許業務法人貴和特許事務所 Kiwa International
Priority Data
2011-14521030.06.2011JP
2012-09943025.04.2012JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) PULLEY DEVICE
(FR) DISPOSITIF DE POULIE
(JA) プーリ装置
Abstract
(EN)
[Problem] To achieve a structure that can reliably prevent the occurrence of creep between a pulley (2b) and an outer ring (7f). [Solution] The intersection angle (θ) of the inside surfaces (23) on the two sides of each recessed part (17a) of the knurled pattern (19a) of the outer ring (7f) is 45° ≤ (θ) ≤ 120° and the recessed parts are formed in a trapezoidal shape. The depth (h) of the recessed parts (17a) in the radial direction and the diameter (D) of a circle circumscribing the tip surface (22) of the protruding parts (18a) satisfy the relationship 0.004D ≤ (h) ≤ 0.015D and the length (L) of the bottom surface (21) of the recessed parts (17a) in the circumferential direction is kept within the range of 0.01D ≤ (L) ≤ 0.03D.
(FR)
L'invention concerne une structure permettant d'empêcher de manière fiable l'apparition de fluage entre une poulie (2b) et une bague externe (7f). L'angle d'intersection (θ) des surfaces intérieures (23) des deux côtés de chaque partie évidée (17a) du profil moleté (19a) de la bague externe (7f) satisfait la relation suivante : 45° ≤ (θ) ≤ 120° et les parties évidées présentent une forme trapézoïdale. La profondeur (h) des parties évidées (17a) dans la direction radiale et le diamètre (D) d'un cercle circonscrivant la surface de pointe (22) des parties en saillie (18a) satisfont la relation suivante : 0,004 D ≤ (h) ≤ 0,015 D et la longueur (L) de la surface de fond (21) des parties évidées (17a) dans la direction circonférentielle est maintenue dans la plage suivante : 0,01 D ≤ (L) ≤ 0,03 D.
(JA)
【課題】プーリ2bと外輪7fとの間でクリープが発生することを確実に防止できる構造を実現する。 【解決手段】外輪7fのローレット目19aの各凹部17aの両側の内側面23の交差角度θを、45度≦θ≦120度として、凹部を台形状に形成する。また、凹部17aの径方向深さhと、凸部18aの先端面22の外接円の直径Dとが、0.004D≦h≦0.015Dの関係を満たし、かつ、凹部17aの底面21の周方向長さLを、0.01D≦L≦0.03Dの範囲に規制する。
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