TIGHTENER FOR TRACK

The invention discloses a tightener for tracks comprising a left-handed hook (1), a right-handed hook (2), a rotation axis (3) comprising left-handed and right-handed threads (3a, 3b), and a ratchet handle (4). The ratchet handle (4) comprises a casing (4a), a lever (4c), and a handle (4d). Inside t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	PULKKINEN, HEIKKI
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVINGPURPOSES BLASTING CHAINS ENGINEERING ELEMENTS AND UNITS FITTINGS PREDOMINANTLY USED THEREFOR GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HAND TOOLS HEATING LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIGHTING MAKING METAL CHAINS MANIPULATORS MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL MOTOR VEHICLES PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS PUNCHING METAL THERMAL INSULATION IN GENERAL TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRAILERS TRANSPORTING VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TOCARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The invention discloses a tightener for tracks comprising a left-handed hook (1), a right-handed hook (2), a rotation axis (3) comprising left-handed and right-handed threads (3a, 3b), and a ratchet handle (4). The ratchet handle (4) comprises a casing (4a), a lever (4c), and a handle (4d). Inside the casing (4a), there is a space for a gearwheel (3e) and a pawl (4c2) which act as torsional parts. The casing (4a) is sealed by means of a cover piece (4a3) which is fastened with attaching parts (4a1, 4a2). The rotation axis (3) is fitted in holes (3a1) of the casing (4a) and the cover peace (4a3) so that the gearwheel (3e) is inside the casing (4a). The pawl (4c2) has a segment of teeth (4c2) which matches with the mesh of the gearwheel (3e), and the pawl is lightened from its middle part, i.e. some of the teeth of the segment are removed. The segment of the teeth (4c2) is fastened to the casing (4a) with a pin (4c3) so that the pawl (4c2) can swing which makes possible that both ends of the segment of the teeth (4c2) can be alternately in the mesh of the gearwheel (3e) in which case the working direction of the tightener can be changed. The gearwheel (3e) is fitted in the casing (4a) so that, during the tightening, the outer shell of the gearwheel leans against the inner surface of the casing (4a) in which case, due to the frictional force, the distribution of stress is uniformly distributed and disengages the other part of the tightener. L'invention concerne un tendeur pour chenilles qui comprend un crochet gauche (1), un crochet droit (2), un axe de rotation (3) qui comprend des filetages droit et gauche (3a, 3b) et une clé à cliquet (4). La clé à cliquet (4) comprend un logement (4a), un levier (4c), et une poignée (4d). À l'intérieur du logement (4a), un espace est ménagé pour un engrenage (3e) et un cliquet (4c2) qui font office d'éléments de torsion. Le logement (4a) est fermé au moyen d'une clé au moyen d'un élément de couverture (4a3) qui est attaché au moyen d'éléments d'attache (4a1, 4a2). L'axe de rotation (3) passe dans des orifices (3a1) du logement (4a) et de l'élément de couverture (4a3) de façon que l'engrenage (3e) soit à l'intérieur du logement (4a). Le cliquet (4c2) possède un segment à dents (4c2) qui s'engrène avec l'engrenage (3e), et le cliquet est allégé sur sa partie intermédiaire, certaines des dents du segment étant retirées. Le segment à dents (4c2) est fixé au logement (4a) au moyen d'une broche (4c3) de façon que le cliquet (4c