Wire-tying tool having clutch mechanism

Abstract

The present invention relates to a wire-tying tool having clutch mechanism which includes a housing unit, an active member, a passive member, a resilient member and a clamping gadget. The housing unit includes an outer tube and an inner tube. The outer tube and the inner tube can be mutually screw-thread-coupled, and make a relative stretch to each other. The active member and the passive member are positioned inside the housing unit on a movable and rotating status. One end of said active member has a first joint unit. Another end has a first disengagement face. One end of passive member has a second joint unit extending to the outside. Another end has a second disengagement face. When the first disengagement face closely contacts the second disengagement face, the active member and the passive member can make synchronic rotation. When the first disengagement face is apart from the second disengagement face, the active member and the passive member cannot make synchronic rotation. The resilient member is used to provide an elastic force which forces the first disengagement face and the second disengagement face to contact each other. The clamping gadget can be coupled to the second joint unit, and can also clamp one roll of iron wire for tying.

1 . A wire-tying tool having clutch mechanism comprising:
 a housing unit including an outer tube and an inner tube, both of which can make relative rotation and move, said outer tube having a first open end and a first closure end with a first thru-hole at its center, the inner wall of the outer tube defined screw threads thereon, said inner tube having a second open end and a second closure end with a second thru-hole at its center, the outer wall of said inner tube defined screw threads thereon, said outer tube and said inner tube screw-thread-coupled to each other;   an active member positioned inside said housing unit and with a first end at one end and a second end at another end, a first joint unit formed by an extension of said first end of said active member and facing said first thru-hole of said outer tube, said second end with a first disengagement face, said first joint unit coupled to a driving member of a hand tool or a power tool;   a passive member positioned inside said housing unit, and with a first end at one end and a second end at another end, a second joint unit formed by an extension of said first end of said passive member, and going through said second thru-hole, said second end with a second disengagement face;   a resilient member mounted inside said housing unit, its elastic force providing a frictional and combining force between said first disengagement face and said second disengagement face; and   a clamping gadget whose one end has a clamping unit for clamping a wire, and another end has a third joint unit used to couple with said second joint unit of said passive member;   when said first disengagement face and said second disengagement face of said active member closely contact each other to maintain a sufficient fictional and combining force, said active member and said passive member can make synchronic rotation, and when said frictional and combining force is smaller than the torque of the reacting force produced by said clamping gadget when said clamping gadget twists the iron wire, said active member and said passive member cannot make synchronic rotation.   
   
   
       2 . The wire-tying tool as claimed in  claim 1 , wherein the interior of said outer tube has a first accommodating groove to accommodate said active member. 
   
   
       3 . The wire-tying tool as claimed in  claim 1 , wherein the interior of said inner tube has a second accommodating grove to accommodate said passive member. 
   
   
       4 . The wire-tying tool as claimed in  claim 1 , wherein said second end of said active member is surrounded with a first raised unit. 
   
   
       5 . The wire-tying tool as claimed in  claim 1 , wherein the cross section of said first joint unit is a polygonal groove, and said driving member is a matchable polygonal column. 
   
   
       6 . The wire-tying tool as claimed in  claim 5 , wherein the cross section of said groove is a quadrangle, and said driving member is a quadrangular column. 
   
   
       7 . The wire-tying tool as claimed in  claim 1 , wherein said second end of said passive member is surrounded with a second raised unit. 
   
   
       8 . The wire-tying tool as claimed in  claim 1 , wherein said second joint unit is a polygonal column. 
   
   
       9 . The wire-tying tool as claimed in  claim 8 , wherein said third joint unit of said clamping gadget is said second groove whose cross section is a polygon hereto, and said polygonal column can be coupled to said second groove. 
   
   
       10 . The wire-tying tool as claimed in  claim 1 , wherein said active member is sleeved over by said resilient member and a pushing member, one end of said pushing member contacts said outer tube, said second end of said active member is surrounded with a first raised unit while another end pushes another end of said pushing member. 
   
   
       11 . The wire-tying tool as claimed in  claim 1 , wherein said second end of said passive member is surrounded with a second raised unit, said resilient member sleeves over said passive member, and one end pushes said second raised unit while another end pushes said closure end of said inner tube. 
   
   
       12 . The wire-tying tool as claimed in  claim 1 , wherein said first disengagement face has a plurality of slots arranged in daisy wheel shape, said second disengagement face has a plurality of teeth arranged in daisy wheel shape, the shape of said slot matches said tooth, each said tooth can be coupled to the corresponding groove. 
   
   
       13 . The wire-tying tool as claimed in  claim 1 , wherein said first disengagement face has a plurality of teeth arranged in circular array with respect to its central axial line, said second disengagement face has a plurality of slots arranged in circular array with respect to its central axial line, the shapes of said slots matches the shapes of said teeth, each said tooth can be coupled to the corresponding slot. 
   
   
       14 . The wire-tying tool as claimed in  claim 1 , wherein said claiming unit of said claming gadget is a hook which is able to hook said wire. 
   
   
       15 . The wire-tying tool as claimed in  claim 1 , wherein said joint unit is a polygonal column. 
   
   
       16 . The wire-tying tying tool as claimed in  claim 1 , wherein said first disengagement face has a plurality of first slots arranged in circular array with respect to its central axial line, said second disengagement face has a plurality of second slots arranged in circular array with respect to its central axial line, a ball is placed between said first groove and its corresponding said second groove. 
   
   
       17 . The wire-tying tool as claimed in  claim 1 , wherein said passive member includes a sleeve and a bar unit which are coupled to each other, and can make synchronic rotation, said disengagement face of the passive member is defined at one end of said sleeve, said first joint unit is provided at one end of said bar unit. 
   
   
       18 . The wire-tying tool as claimed in  claim 17 , wherein said bar unit is a polygonal column, said sleeve has a polygonal guiding hole to match said polygonal column, the depth of said guiding hole is deeper than the length of said column, and said guiding hole is coupled to said column. 
   
   
       19 . The wire-tying tool as claimed in  claim 1 , wherein an iron wire gauge is mounted on said outer tube, said iron wire gauge has a plurality of measuring grooves with different diameters. 
   
   
       20 . The wire-tying tool as claimed in  claim 1 , wherein the outer wall of said inner tube is marked with a torque-graduated ruler, the edge of said open end of said outer tube aligns the torque-graduated ruler. 
   
   
       21 . The wire-tying tool as claimed in  claim 1 , wherein said clamping unit includes a bar unit and a screw-thread-coupling member, said bar unit has a plurality of thru-holes where said wire can go through, the end of said screw-thread-coupling member is screw-thread-coupled to said thru-hole of said bar unit to compress said iron wire. 
   
   
       22 . The wire-tying tool as claimed in  claim 1 , wherein said clamping unit is a pliers structure which can clam said iron wire. 
   
   
       23 . The wire-tying tool as claimed in  claim 1 , wherein said claiming unit includes a base bar and a fixed base which is secured to said base bar, a fixed pliers arm and a movable pliers arm which are intercrossed and pivot-coupled to each other, a slide is sleeved over said base bar, said movable pliers arm and the front end of said fixed pliers arm can be combined to clamp said wire, said movable pliers arm has a hook, said slide has a locking brim, when said movable pliers arm and said fixed pliers arm clamp said wire, said slide can move along said base bar, and said slide uses its locking brim to lock said hook, so that said movable pliers arm and said fixed pliers arm are limited in a combing status.