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1. WO2020194353 - COUPLING FOR LINKS OF TRACKS

Publication Number WO/2020/194353
Publication Date 01.10.2020
International Application No. PCT/IT2019/000025
International Filing Date 25.03.2019
IPC
B62D 55/21 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
55Endless-track vehicles
08Endless-track units; Parts thereof
18Tracks
20of articulated type, e.g. chains
205Connections between track links
21Links connected by transverse pivot pins
B62D 55/088 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
55Endless-track vehicles
08Endless-track units; Parts thereof
088with means to exclude or remove foreign matter e.g. sealing means, self-cleaning track links or sprockets, deflector plates or scrapers
CPC
B62D 55/0887
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
55Endless track vehicles
08Endless track units; Parts thereof
088with means to exclude or remove foreign matter, e.g. sealing means, self-cleaning track links or sprockets, deflector plates or scrapers
0887Track-articulation sealings against dust, water, mud or the like
B62D 55/21
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
55Endless track vehicles
08Endless track units; Parts thereof
18Tracks
20of articulated type, e.g. chains
205Connections between track links
21Links connected by transverse pivot pins
Applicants
  • ITALTRACTOR ITM S.P.A. [IT]/[IT]
Inventors
  • CALIA, Eustachio
  • COVIELLO, Mario
  • GUARINO, Annunziato
Agents
  • SGOBBA, Marco
  • MODIANO, Gabriella
  • STAUB, Gabriela
  • FARAGO, Peter
  • WEISGERBER, Stefan
  • O'BYRNE, Daniel
  • MELLEY, Luca
  • IACOBINI, Michel
  • IACOBINI, Anca Svetlana
  • SANCHINI, Alessandro
  • STIGNANI, Stefano
  • MIMO, Paolo
  • OTHARAM, Prabhuram
  • ARMENIO, Dario
  • GARDENGHI, Giorgio
  • GRIMALDO, Andrea
Priority Data
Publication Language English (EN)
Filing Language Italian (IT)
Designated States
Title
(EN) COUPLING FOR LINKS OF TRACKS
(FR) COUPLAGE POUR LIAISONS DE PISTES
Abstract
(EN)
A coupling (1) for links (2, 3) of tracks, which comprises a pin (4) which is integral with at least one first link (2), and a bushing (5), fitted rotatably over the pin (4), which is integral with at least one second link (3). The pin (4) comprises a cylindrical central portion (6) which has a first predefined diameter and two end portions (7) which have a second predefined diameter; the first predefined diameter is larger than the second predefined diameter. The pin (4) comprises an axial non-through channel (8) connected to the outside at one of its ends, and a substantially radial passage (10) between the outer lateral surface of its central portion (6) and the inner channel (8). The bushing (5) comprises a through hole with a diameter which is larger than and proximate to the outside diameter of the central portion (6) of the pin (4), on which it is arranged in the assembled configuration. The pin (4) supports, substantially proximate to the end portions of the central portion (6), respective means for sealing and alignment (12) which abut on respective end fronts (13) of the bushing (5), for the confinement of the fluid lubricant interposed between the pin (4) and the bushing (5).
(FR)
La présente invention concerne un couplage (1) pour des liaisons (2, 3) de pistes, qui comprend une broche (4) qui est d'un seul tenant avec au moins une première liaison (2) et une douille (5), montée de manière rotative sur la broche (4), qui est d'un seul tenant avec au moins une deuxième liaison (3). La broche (4) comprend une partie centrale cylindrique (6) qui a un premier diamètre prédéfini et deux parties d'extrémité (7) qui ont un second diamètre prédéfini ; le premier diamètre prédéfini est supérieur au second diamètre prédéfini. La broche (4) comprend un canal axial non traversant (8) relié à l'extérieur à l'une de ses extrémités et un passage essentiellement radial (10) entre la surface latérale externe de sa partie centrale (6) et le canal interne (8). La douille (5) comprend un trou traversant ayant un diamètre qui est plus grand et à proximité du diamètre externe de la partie centrale (6) de la broche (4), sur laquelle il est agencé dans la configuration assemblée. La broche (4) supporte, essentiellement à proximité des parties d'extrémité de la partie centrale (6), des moyens respectifs d'étanchéité et d'alignement (12) qui viennent en butée sur des faces d'extrémité respectives (13) de la douille (5), pour le confinement du lubrifiant liquide interposé entre la broche (4) et la douille (5).
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