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1. WO2020115414 - PROTECTIVE BELLOWS AND TRANSMISSION JOINT PROVIDED WITH SUCH A BELLOWS

Publication Number WO/2020/115414
Publication Date 11.06.2020
International Application No. PCT/FR2019/052888
International Filing Date 02.12.2019
IPC
F16J 3/04 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
JPISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
3Diaphragms; Bellows; Bellows pistons
04Bellows
F16D 3/84 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
3Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
84Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
CPC
F16D 3/845
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
3Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
84Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
843enclosed covers
845allowing relative movement of joint parts due to the flexing of the cover
F16J 3/043
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
JPISTONS
3Diaphragms; Bellows; Bellows pistons
04Bellows
041Non-metallic bellows
043with particular means for limiting wear
Applicants
  • TRELLEBORG BOOTS FRANCE [FR]/[FR]
Inventors
  • BOURBIGOT, Lionel
Agents
  • GODINEAU, Valérie
  • DUTREIX, Hugues
Priority Data
187223003.12.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) PROTECTIVE BELLOWS AND TRANSMISSION JOINT PROVIDED WITH SUCH A BELLOWS
(FR) SOUFFLET DE PROTECTION ET JOINT DE TRANSMISSION EQUIPE D'UN TEL SOUFFLET
Abstract
(EN)
Disclosed is a protective bellows (1) in the form of a tubular body (2) open at each of its ends, the body (2) having two zones (3, 4) of differentiated cross-section, one (3) of the zones (3, 4) of smaller cross-section called the small base (3) of the body (2) and the other zone (4) of larger cross-section called the large base (4) of the body, the zones (3, 4) being separated from each other by a wall referred to as the deformable outer radial wall of the body (2), this wall (6) extending transversely to the longitudinal axis of the body (2). The outer radial wall (6) of the body (2) is provided, at its zone (12) connecting to the large base (4) of the body (2), with an outer peripheral groove (7) with an outer radial opening (8), this groove (7) having one of its sides (9, 10) and the bottom (11) of the groove (7) projecting from the face (61) of the deformable outer radial wall (6) turned towards the small base (3) of the body (2).
(FR)
Soufflet (1) de protection se présentant sous forme d'un corps (2) tubulaire ouvert à chacune de ses extrémités, ledit corps (2) présentant deux zones (3, 4) de section différenciée avec l'une (3) des zones (3, 4) de plus petite section appelée petite base (3) du corps (2) et l'autre zone (4) de plus grande section appelée grande base (4) du corps, lesdites zones (3, 4) étant séparées l'une de l'autre par une paroi dite radiale externe déformable dudit corps (2), cette paroi(6) s'étendant transversalement à l'axe longitudinal dudit corps (2). La paroi(6) radiale externe dudit corps (2) est munie au niveau de sa zone (12) de raccordement à la grande base (4) du corps (2) d'une gorge (7) périphérique externe à ouverture (8) radiale externe, cette gorge (7) présentant l'un de ses flancs (9, 10) et le fond (11) de la gorge (7) s'étendant en saillie de la face (61) de la paroi(6) radiale externe déformable tournée vers la petite base (3) du corps (2).
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