ES1032834U - Improved sewing machine for hemming shoes and the like. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Perfected sewing machine for rolling shoes and similar comprising a machine frame (m) with a machine bridge (p) that supports a sewing head (c) with a needle device (da) and a press device- fabrics (pt) and a sewing arm (b) that extends from the machine frame (m) in the free end of which a stitching plate-head (pc) and an organs for stitch formation are interrupted. (8a) and that determines the support base of the article (a) that must be coated, and where: - the sewing arm (b) is mounted rotating in relation to the machine frame (m) around an axis (e) that discurs parallel to him, - the plate-sewing head (pc) is rotately also available, with respect to the above axis (e), - the organs for formation of the stitch (8a), coaxials to the plate-head of sewing (pc) are also rotating, around the already mentioned axis (e), - are expected cinematic chains of tr enes of recurring planetary gears (1 to 7 and 8 to 14) of relationship of unit transmission that respectively serves, to maintain statics in a rotating sense regarding the needle (da) and pressedel (pt) devices both to the sewing plate (pc) like the structure organs of the stitch (8a) lodged inside, despite the turning movement of such sewing arm (b) around the axis (e), characterized, whereas: - the arm sewing (b) mounted on a tree (16) with a portion (16b) fixed by means of a retention washer (16c) to a removable axis (7a) longitudinally according to the spinning arm axle (e) ( b) and whose removable axle (7a) configures on one of its ends a cylindrical gear (7), when its other end retained against turning and axial displacement by means of blocking element (17, l8) and that has a regulation device axial (19) in the form of a screw supported on the machine frame (m), and a portion hollow (16a) coaxial to the above key axle (7a) with another hollow shaft (13a) in one of which extremes is carved a cylinder gear (14) driven through an intermediate gear (15) by a dipped pulley (16) machine operation, and in which other extreme is carved another cylinder gear (13); - in the inside of the sewing arm (b) are coaxially provided for out of a hollow tree (5a) with cylindrical sprockets (5, 6) carved at its end, and another tree (11a) also with cylindrical sprockets (11, 12) carved on their extremes; - where the cylindrical sprockets (6, 12) of the above trees (5a, 11a) engage respectively with the cylinder gears (7, 13) above the remote axle (7a) and the hollow tree (13); - in the sewing plate-head (pc) this is integrally conformed a gear (1) that through an intermediate pinion (2) and a double pinion (3, 4) is engaged with the cylinder gear (5) above; - the chaffe or anchor (8a) of the structure organs of the stitch has a gear (8) through intermediate sprockets (9, 10) engrange with the previous cylinder gear (11), and - where the sprockets and gears (1 to 7 and 8 to 14) respectively form the antedichas channels chain train of planetary gear recurrent unit transmission relations. (Machine-translation by Google Translate, not legally binding)