Abstract

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.

IPC Classes  ?

• B27G 19/06 - Safety guards or devices specially adapted for wood sawsAuxiliary devices facilitating proper operation of wood saws for band or strap saws
• B27B 13/14 - Braking devices specially designed for band sawing machines, e.g. acting after damage of the band saw blade

Abstract

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.

IPC Classes  ?

• B23D 55/00 - Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
• B23D 59/00 - Accessories specially designed for sawing machines or sawing devices
• B27B 13/14 - Braking devices specially designed for band sawing machines, e.g. acting after damage of the band saw blade
• B27G 19/06 - Safety guards or devices specially adapted for wood sawsAuxiliary devices facilitating proper operation of wood saws for band or strap saws

Abstract

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.

IPC Classes  ?

• B23D 59/00 - Accessories specially designed for sawing machines or sawing devices
• B27G 19/06 - Safety guards or devices specially adapted for wood sawsAuxiliary devices facilitating proper operation of wood saws for band or strap saws
• B27B 13/14 - Braking devices specially designed for band sawing machines, e.g. acting after damage of the band saw blade
• B23D 55/00 - Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts