B27B13/14

Safety device for a bandsaw
11203130 · 2021-12-21 · ·

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.

Safety device for a bandsaw
11203130 · 2021-12-21 · ·

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.

POWER SAWS

Power saws and features for power saws are disclosed. Various features are particularly relevant to jobsite or benchtop table saws, such as a trunnion formed from a shaped tube, an elevation carriage, and an arbor block retention mechanism. Other features are particularly relevant to table saws, hand-held circular saws, track saws, miter saws, and band saws with active injury mitigation technology, such as an electrically isolating gear and an overmolded arbor/gear element.

Power saws

Power saws and features for power saws are disclosed. Various features are particularly relevant to jobsite or benchtop table saws, such as a trunnion formed from a shaped tube, an elevation carriage, and an arbor block retention mechanism. Other features are particularly relevant to table saws, hand-held circular saws, track saws, miter saws, and band saws with active injury mitigation technology, such as an electrically isolating gear and an overmolded arbor/gear element.

SAFETY DEVICE FOR A BANDSAW
20200406493 · 2020-12-31 · ·

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.

Safety system and method for power tools
10865941 · 2020-12-15 ·

A safety system for a power tool having a motor and a cutting tool driven by the motor includes a control device configured to detect a direct contact of a conductive material with the cutting tool, the direct contact of the conductive material with the cutting tool defining a contact event, and a braking device movable between a retracted position and an engaged position. The control device is configured to interrupt electrical power to the motor and control the braking device to the engaged position when the contact event is detected.

Method and apparatus to monitor and shut down production saw
10710180 · 2020-07-14 · ·

A saw with a monitoring and safety system that utilizes vision and sensors designed to provide user feedback on safety and training. The saw having a wheel formed of an anodized main body with a non-anodized surface extending along the circumference of the groove of the wheel. The saw having low inertial energy design to stop the blade without mechanically grabbing the blade assuring multiple points of safety detection and triggering. The saw having an automatic guard to protect the user from slipping and hitting the blade even when the saw is not running. The saw being connected to a cloud based system that enables a safer ecosystem and cross statistic sharing of safety parameters.

Method and apparatus to monitor and shut down production saw
10710180 · 2020-07-14 · ·

A saw with a monitoring and safety system that utilizes vision and sensors designed to provide user feedback on safety and training. The saw having a wheel formed of an anodized main body with a non-anodized surface extending along the circumference of the groove of the wheel. The saw having low inertial energy design to stop the blade without mechanically grabbing the blade assuring multiple points of safety detection and triggering. The saw having an automatic guard to protect the user from slipping and hitting the blade even when the saw is not running. The saw being connected to a cloud based system that enables a safer ecosystem and cross statistic sharing of safety parameters.

Operator protection system for electric saw

A safety apparatus for protecting an operator of an electrically powered saw from the blade during operation, the saw being of the type including a cutting table through which the blade passes, comprising: an image processing arrangement operable to sense, within a predefined three-dimensional sensing zone, the presence of a glove worn by the operator which has a colour distinguishable by the image sensor from the colour of an object being cut by the blade, the three-dimensional sensing zone being located in a cutting path of the blade; and an electronic controller communicable with the image sensor and operable to control an arresting mechanism to arrest movement of the blade responsive to the coloured glove being detected within the three-dimensional sensing zone.

Operator protection system for electric saw

A safety apparatus for protecting an operator of an electrically powered saw from the blade during operation, the saw being of the type including a cutting table through which the blade passes, comprising: an image processing arrangement operable to sense, within a predefined three-dimensional sensing zone, the presence of a glove worn by the operator which has a colour distinguishable by the image sensor from the colour of an object being cut by the blade, the three-dimensional sensing zone being located in a cutting path of the blade; and an electronic controller communicable with the image sensor and operable to control an arresting mechanism to arrest movement of the blade responsive to the coloured glove being detected within the three-dimensional sensing zone.