Nested sector gears

F - Mech Eng,Light,Heat,Weapons – 16 – H

Patent

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Details

F16H 55/02 (2006.01) B21D 53/28 (2006.01)

Patent

CA 2440095

A sector gear is formed as one of a pair of mirror image gears (12, 14). Each of the sector gears has an arcuate portion (16) having a series of teeth (18) on an outer periphery thereof, and a V-shaped base portion (20) having a first leg (22), a second leg (24) and an apex portion (26). The first leg (22) has an S-shaped configuration and connects with the arcuate portion (16) at a first end thereof. The second leg (24) has an inverted S-shape and connects with the arcuate portion (16) near an arcuate mid-length of the arcuate portion (16). The first leg (22) and second leg (24) merge smoothly with the apex portion (26). The apex portion (26) has an aperture (30) at a radial center of the arcuate portion (16). Each of the gears has an inner periphery (28) that enables complementary nesting of the pair of sector gears (12, 14).

L'invention concerne un secteur denté formé en tant qu'un d'une paire de secteurs dentés symétriques (12, 14), chacun ayant une partie arciforme (16) munie d'une série de dents (18) sur sa périphérie extérieure, et une partie base (20) en V ayant un premier pied (22), un second pied (24) et une partie sommet (26). Le premier pied, qui (22) présente une configuration en S, est raccordé à la partie arciforme (16) à une première extrémité de celle-ci. Le second pied (24), qui a une forme en S inversé, est raccordé à la partie arciforme (16) à mi-longueur arciforme de la partie arciforme (16). Le premier pied (22) et le second pied (24) épousent en douceur la partie sommet (26), laquelle présente un orifice (30) à un centre radial de la partie arciforme (16). Chaque secteur denté présente une périphérie interne (28) qui permet l'emboîtement complémentaire de la paire de secteurs dentés (12, 14).

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