Abrégé

A safety device for a bandsaw includes a frame and a pair of jaws rotatably mounted thereon. The frame is mounted on the framework of the saw with the jaws on either side of the blade. An actuating rod is slidably mounted on the frame. A resilient return member constrains the sliding and a two-way transmission transforms it into a rotation of the pair of jaws. An electromagnetic actuator is rigidly connected to the frame and a retaining member is rigidly connected to the actuator. The rod has a receiving portion which engages with the retaining member when the rod is in a first position relative to the frame. The transmission is arranged so that the jaws are separated from one another when the rod is in the first position.

Classes IPC  ?

• B27G 19/06 - Protecteurs ou dispositifs de sécurité adaptés aux scies à boisDispositifs auxiliaires facilitant une bonne utilisation des scies à bois pour scies à ruban ou à lame sans fin
• B27B 13/14 - Dispositifs de freinage spécialement conçus pour les scies à ruban, p. ex. fonctionnant après avarie de la lame

Abrégé

The invention relates to a safety device for a bandsaw which comprises a frame (17) and a pair of jaws (13) rotatably mounted thereon. The frame (17) is mounted on the framework of the saw with the jaws (3) on either side of the blade. An actuating rod (37) is slidably mounted on the frame (17). A resilient return member (55) constrains this sliding and a two-way transmission (41) transforms it into a rotation of the pair of jaws (13). An electromagnetic actuator (65) is rigidly connected to the frame (17) and a retaining member is rigidly connected to said actuator. The rod (37) has a receiving portion (63) which engages with the retaining member when the rod (37) is in a first position relative to the frame (17). The transmission (41) is arranged so that the jaws (13) are separated from one another when the rod (37) is in this first position. The actuator (65) maintains the engagement while it is receiving power.

Classes IPC  ?

• B23D 55/00 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers
• B23D 59/00 - Dispositifs annexes spécialement conçus pour les machines à scier ou les dispositifs de sciage
• B27B 13/14 - Dispositifs de freinage spécialement conçus pour les scies à ruban, p. ex. fonctionnant après avarie de la lame
• B27G 19/06 - Protecteurs ou dispositifs de sécurité adaptés aux scies à boisDispositifs auxiliaires facilitant une bonne utilisation des scies à bois pour scies à ruban ou à lame sans fin

Abrégé

The invention relates to a safety device for a bandsaw which comprises a frame (17) and a pair of jaws (13) rotatably mounted thereon. The frame (17) is mounted on the framework of the saw with the jaws (3) on either side of the blade. An actuating rod (37) is slidably mounted on the frame (17). A resilient return member (55) constrains this sliding and a two-way transmission (41) transforms it into a rotation of the pair of jaws (13). An electromagnetic actuator (65) is rigidly connected to the frame (17) and a retaining member is rigidly connected to said actuator. The rod (37) has a receiving portion (63) which engages with the retaining member when the rod (37) is in a first position relative to the frame (17). The transmission (41) is arranged so that the jaws (13) are separated from one another when the rod (37) is in this first position. The actuator (65) maintains the engagement while it is receiving power.

Classes IPC  ?

• B23D 59/00 - Dispositifs annexes spécialement conçus pour les machines à scier ou les dispositifs de sciage
• B27G 19/06 - Protecteurs ou dispositifs de sécurité adaptés aux scies à boisDispositifs auxiliaires facilitant une bonne utilisation des scies à bois pour scies à ruban ou à lame sans fin
• B27B 13/14 - Dispositifs de freinage spécialement conçus pour les scies à ruban, p. ex. fonctionnant après avarie de la lame
• B23D 55/00 - Machines à scier ou dispositifs de sciage à lames de scie à ruban, caractérisés uniquement par la structure d'organes particuliers