摘要:
A crank device which can produce a large torque without increasing the locus of the crank arm. The crank arm (6) has first (7) and second arms (8) which are longitudinally slidably coupled together through a pinion (13). The second arm is formed with two sets of rack teeth (17,18) on both sides of the pinion. The pinion has along its circumference a plurality of teeth (19) which are adapted to alternately come into mesh with the respective sets of rack teeth every time the crank arm makes a half turn in the same direction. Thus, the entire length of the crank arm alternately becomes maximum and minimum every time the crank arm turns by 180°. By applying a driving force to the crank arm when the length of the crank arm is maximum, it is possible to produce a large torque.
摘要:
Un moto-réducteur comprenant un carter creux (2) muni d'une plaque de fermeture (3), notamment moto-réducteur d'essuyage, comporte, dans le volume creux dudit carter, une roue dentée (4) mobile en rotation autour d'un axe (5) portant un pion (7), parallèle à l'axe (5) et excentré par rapport à celui-ci, qui entraîne un système bielle (13)- manivelle (20a,20b), articulé autour d'un pivot (21), permettant d'engendrer, à partir du mouvement de rotation continue de ladite roue dentée (4), un mouvement de rotation alternatif à un arbre de sortie (10). Il comporte en outre, un joint périphérique (33) disposé entre le bord supérieur (50) du carter (2) et la plaque de fermeture (3), et une surépaisseur de frottement (31) disposée de manière fixe sur la face interne dirigée vers le carter (2) de la plaque de fermeture (3). Selon l'invention, le joint périphérique (33) et la plaque de frottement (31, 41) forment une pièce monobloc (40). Application: tout type de moteur avec un mécanisme bielle-manivelle incorporé.
摘要:
A wiping material dispenser for wiping hands and automatically dispensing toilet paper, remarkable in that the protective housing (2) is provided with parallel flanges (2.1-2.2) perpendicular to the rear plane of the housing in a hand towel dispenser embodiment, or between a front flange and a rear wall in a toilet paper dispenser embodiment. The drum (4) and the pressure member (6) may be snap fitted, said flanges or rear walls being provided with tabs (2.4, 2.10) made flexible by preformed flexing slots (2.3.1, 1.2.11) in the flanges and/or rear wall of the dispenser, said tabs having recesses (2.5, 2.14) for receiving the pressure member, while the flanges and/or the rear wall of the housing and the front flange also have notches (7.1, 2.6) for locating the drum rod ends. The various recesses for the ends of the drum pressure member rods face one another, the pressure member receiving tabs resiliently hold said pressure member against the drum and automatically lock it in position within the dispenser housing, and the drum and pressure member positioning areas are freely accessible through apertures at the front of said tabs and flanges so that the components of the dispenser may be assembled quickly.
摘要:
Un moto-réducteur présente un carter (1) creux fermé par un couvercle (29) et comportant dans le volume creux dudit carter une roue dentée (2) portant, de manière excentrée par rapport à l'axe de rotation (32) de ladite roue, un axe (6) libre en rotation et en translation axiale qui entraîne un système bielle-manivelle (9) permettant de transformer le mouvement circulairement continu de la roue dentée (2) en un mouvement de rotation alternatif à un arbre de sortie (10). Selon l'invention, le couvercle (29) présente sur sa face interne, dirigée vers le volume creux du carter, au moins une surépaisseur plane (30,34) de glissement en matériau à faible coefficient de frottement.
摘要:
Un moto-réducteur comprenant un carter creux (2) muni d'une plaque de fermeture (3), notamment moto-réducteur d'essuyage, comporte, dans le volume creux dudit carter, une roue dentée (4) mobile en rotation autour d'un axe (5) portant un pion (7), parallèle à l'axe (5) et excentré par rapport à celui-ci, qui entraîne un système bielle (13)- manivelle (20a,20b), articulé autour d'un pivot (21), permettant d'engendrer, à partir du mouvement de rotation continue de ladite roue dentée (4), un mouvement de rotation alternatif à un arbre de sortie (10). Selon l'invention, la plaque de fermeture (3) présente sur sa face interne dirigée vers le carter (2) une surface d'appui (27a, 27b) de l'extrémité de la manivelle (20a) au niveau du pivot (21). Application: tout type de moteur avec un mécanisme bielle-manivelle incorporé.
摘要:
A crank device which can produce a large torque without increasing the locus of the crank arm. The crank arm (6) has first (7) and second arms (8) which are longitudinally slidably coupled together through a pinion (13). The second arm is formed with two sets of rack teeth (17,18) on both sides of the pinion. The pinion has along its circumference a plurality of teeth (19) which are adapted to alternately come into mesh with the respective sets of rack teeth every time the crank arm makes a half turn in the same direction. Thus, the entire length of the crank arm alternately becomes maximum and minimum every time the crank arm turns by 180°. By applying a driving force to the crank arm when the length of the crank arm is maximum, it is possible to produce a large torque.
摘要:
The invention concerns an actuator for the operation of on-off valves. Said actuator includes a supporting body (1) in which there is transversally one pneumatic cylinder (8, 9) at least, able to activate in the two directions a rack (7) which engages itself with a cogged wheel (31; 50; 100) co-axial with the central shaft (15, 66, 104) of said actuator and able to transmit its own rotation through a pair of free wheels (27, 28; 61, 62; 109, 110) which rigidly and alternatively engage themselves in discordant directions with a ring (33, 34; 62, 63; 108) integral with the central shaft of the actuator, operation means by pneumatic pistons being foreseen for the relative axial movement between the cogged wheel and the shaft of the actuator. Depending on the mutual distance between the free wheels, it happens that in the absence of the pneumatic signal the actuator has its central shaft blocked or manually manoeuvreable. Moreover, besides the direct rotation of the throttle valve being integral with the shaft of the actuator, the operation of guillotine-type valves is foreseen by providing the shaft of the actuator with a nut screw (68) and with a screw (59) integrated with said guillotine.
摘要:
The invention concerns an actuator for the operation of on-off valves. Said actuator includes a supporting body (1) in which there is transversally one pneumatic cylinder (8, 9) at least, able to activate in the two directions a rack (7) which engages itself with a cogged wheel (31; 50; 100) co-axial with the central shaft (15, 66, 104) of said actuator and able to transmit its own rotation through a pair of free wheels (27, 28; 61, 62; 109, 110) which rigidly and alternatively engage themselves in discordant directions with a ring (33, 34; 62, 63; 108) integral with the central shaft of the actuator, operation means by pneumatic pistons being foreseen for the relative axial movement between the cogged wheel and the shaft of the actuator. Depending on the mutual distance between the free wheels, it happens that in the absence of the pneumatic signal the actuator has its central shaft blocked or manually manoeuvreable. Moreover, besides the direct rotation of the throttle valve being integral with the shaft of the actuator, the operation of guillotine-type valves is foreseen by providing the shaft of the actuator with a nut screw (68) and with a screw (59) integrated with said guillotine.