The present invention relates to a shearing tool such as scissors, comprising first and second cutting members pivotally coupled with each other, and a linkage pivotally coupled to the first and second cutting members, whereby the linkage and one of the first and second cutting members form together a compound lever mechanism. A force applied by an operator onto the shearing tool increases as an output by the linkage, and the increasing force is conveyed to that cutting member so that the cutting power of the shearing tool increase to allow hard-to-cut materials to be cut manually and easily with less effort from the operator.

The present invention relates to a shearing tool such as scissors, comprising first and second cutting members pivotally coupled with each other, and a linkage pivotally coupled to the first and second cutting members, whereby the linkage and one of the first and second cutting members form together a compound lever mechanism. A force applied by an operator onto the shearing tool increases as an output by the linkage, and the increasing force is conveyed to that cutting member so that the cutting power of the shearing tool increase to allow hard-to-cut materials to be cut manually and easily with less effort from the operator.

A cutting tool according to some embodiments of the disclosure includes a stationary handle and a movable handle pivotally attached thereto, a blade receiving gear mounted on the stationary handle, a blade removably mounted to the blade receiving gear, and a spring-loaded slide plate mounted to the blade receiving gear for holding the blade in the blade receiving gear. The blade seats within a notch of the blade receiving gear and the slide plate engages with a notch in the blade. The slide plate can be removed without the use of tools from engagement with the blade to allow user to easily remove the blade from the cutting tool.

A cutting tool according to some embodiments of the disclosure includes a stationary handle and a movable handle pivotally attached thereto, a blade receiving gear mounted on the stationary handle, a blade removably mounted to the blade receiving gear, and a spring-loaded slide plate mounted to the blade receiving gear for holding the blade in the blade receiving gear. The blade seats within a notch of the blade receiving gear and the slide plate engages with a notch in the blade. The slide plate can be removed without the use of tools from engagement with the blade to allow user to easily remove the blade from the cutting tool.

Various embodiments disclosed herein related to a hand operated cutting tool. The hand operated cutting tool may include a first cutting member; a first handle coupled to the first cutting member; a second handle having a second cutting member; and a pivot connection pivotably coupling the first handle to the second handle. The first cutting member may include a cutting device that defines a bow-shaped cutting profile, wherein the bow-shaped cutting profile facilitates an acceleration of a cut-point position defined by an interaction of the first and second cutting members as the first and second handles move from a fully open position to a fully closed position.

A hand tool includes a first jaw; a first handle coupled to a second jaw, the second jaw pivotably coupled to the first jaw and having a first geared structure, the first geared structure including a first plurality of teeth and a first bearing surface; and, a second handle coupled to a lever, the lever pivotably coupled to the first jaw and including a second geared structure, the second geared structure including a second plurality of teeth and a second bearing surface, wherein the first and second handles are movable between a full open position and a full close position such that during movement from the full open position to the full close position, the first plurality of teeth are at least partially engaged with the second plurality of teeth and the first and second bearing surfaces are in rolling contact.

An apparatus and method to secure a bolt cutter, wire cutter, cable cutter or other type of pivot handled tool with two protruding tabs whose apertures align with each other as the handles of the pivot handled tool enter a closed position. A shackle of a padlock may be inserted through the aligned apertures to lock the handles in the closed position.

A cutting device is disclosed. The cutting device has a first body assembly having a first blade portion formed from a first non-magnetic material and a first handle portion formed from a second non-magnetic material. The cutting device also has a second body assembly having a second blade portion formed from the first non-magnetic material and a second handle portion formed from the second non-magnetic material. The cutting device further has a fastener formed from a third non-magnetic material, the fastener rotatably attaching the first body assembly to the second body assembly. The cutting device also has a cover assembly formed from the second non-magnetic material, the cover assembly covering the fastener. The first non-magnetic material and the second non-magnetic material are electrically non-conductive materials.

A cutting device is disclosed. The cutting device has a first body assembly having a first blade portion formed from a first non-magnetic material and a first handle portion formed from a second non-magnetic material. The cutting device also has a second body assembly having a second blade portion formed from the first non-magnetic material and a second handle portion formed from the second non-magnetic material. The cutting device further has a fastener formed from a third non-magnetic material, the fastener rotatably attaching the first body assembly to the second body assembly. The cutting device also has a cover assembly formed from the second non-magnetic material, the cover assembly covering the fastener. The first non-magnetic material and the second non-magnetic material are electrically non-conductive materials.

There is disclosed an ergonomic scissors tool and associated methods for performing precise cutting operations in a variety of applications including hair cutting, pet grooming, medical applications, and/or clothing manufacturing, repair, and/or tailoring. One embodiment provides a scissors tool including an upper cutting member extending proximally to distally from an upper digit-receiving eyelet to an upper blade portion, as well as a lower cutting member extending proximally to distally from an upper digit-receiving eyelet to an upper blade portion, where the lower cutting member is disposed beneath and pivotally coupled with the upper cutting member. The upper and the lower blade portions meet at a horizontal cutting plane, and an offset configured for one or both of a user's physiology and the relevant use application separates the upper and the lower digit-receiving eyelets from the horizontal cutting plane. Other embodiments are disclosed.