B - Operations – Transporting – 27 – B
Patent
B - Operations, Transporting
27
B
B27B 17/00 (2006.01)
Patent
CA 2343807
The invention relates to a saw horse (10), comprising a supporting frame (12) and a clamping device (14). The clamping device (14) has an upper (38) and a lower clamping edge (42) arranged in two vertical planes which are horizontally displaced in relation to each other. The clamping edges are arranged in such a way that a work piece to be sawn (44) can be introduced between the upper (38) and lower clamping edge (42). Since the weight of the workpiece (44) is distributed unsymmetrically relative to the clamping edges (38, 42), the workpiece (44) is self-clamped between the clamping edges (38, 42). The saw horse comprises a securing device (16) consisting of the following parts: a bearing cable (58) for supporting the motor saw, a guide frame (56, 56) in which the bearing cable (58) is guided and can be moved in a longitudinal direction, a tensioning device for transmitting a tensile force to the longitudinally movable bearing cable (58) when the motor saw is lifted or lowered, and a friction brake (68) which is associated with bearing cable (58). The tensioning device comprises a counterweight (64) and a self-winding device for the bearing cable (58).
L'invention concerne un chevalet (10) comprenant un bâti (12) et un dispositif de serrage (14). Le dispositif de serrage (14) comprend un bord de serrage supérieur (38) et un bord de serrage inférieur (42) situés dans deux plans verticaux horizontalement décalés. Les bords de serrage sont conçus de telle façon qu'une pièce à scier (44) puisse être introduite entre le bord de serrage supérieur (38) et le bord de serrage inférieur (42). Par une répartition asymétrique du poids de la pièce (44) par rapport aux bords de serrage (38, 42), la pièce à scier (44) est auto-bloquée entre les bords de serrage (38, 42). Le chevalet comprend un dispositif de retenue (16) comportant: un câble porteur (58) supportant la scie à moteur, un cadre de guidage (54, 56) dans lequel le câble porteur (58) est guidé en déplacement longitudinal, un dispositif de fixation permettant de transmettre une force de serrage au câble porteur (58) à mobilité longitudinale, lorsque la scie à moteur est soulevée et abaissée, et un frein à friction (68) associé au câble porteur (58). Le dispositif de fixation comprend un contre-poids (64) et un dispositif d'auto-enroulement destiné au câble porteur (58).
Lang Armand
Lenert Eugene
Borden Ladner Gervais Llp
Lang Armand
Lenert Eugene
LandOfFree
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