ROTARY CUTTING PLIERS

摘要

In an ordinary pair of cutting pliers for use in cutting an electric wire, the ineffective part of the action distance between the base point of cutter formation on the periphery of the bearing and the fulcrum within the supporting shaft is eliminated, which has been the direct cause of the insufficiency of the cutting force. A curved cutter (9a) is provided, on the left of a vertical wire insert (12) bored from the center of rotation of a bearing disk (8) provided on one member, from this center of rotation. Alternatively, a rotor (14) whose peripheral cutter (16) is in contact with this center of rotation is buried, and this rotor (14) is provided with a curved cutter (9b) of the same diameter as the cutter (9a). A curved bottom face (29) is provided in a left-inclined wire insert (31) bored in a bearing disk (27) provided on the other member from the center of its rotation. Between the two bearing disks are housed a leftward ratchet (32) on the periphery and a rotary shaft (34) provided with a curved cutter (36) from the center of rotation on the right-side bottom face of a vertical wire insert (39) bored from the center of rotation. The two members are rotatably coupled by the periphery supporting means. The rotary shaft (34) is provided with a reversing belt (40) on its right side periphery. A feed pawl (39) for the rotary shaft (34) and a fixed pawl (20) interlocked with it are provided under the two disks. A reversing unit for the rotary shaft (34), interlocked with the belt (40) is disposed within handles (2 and 22) underneath the two members. This pair of pliers, though mainly intended for cutting a large-diameter electric wire, can selectively cut an intermediate- to small-diameter electric wire by using the peripheral cutter (16) of the rotor (14) provided with the curved cutter (9b).