초록

Method and apparatus for inserting the heating cable into the shell of an electric blanket, including a plurality of slotted tubes which are inserted to guide a flexible leader which draws the cable successively through each of the adjacent channels in the shell.

대표청구항 ▼

An apparatus for inserting a heating element into a fabric shell of an electric blanket, the shell including two spaced fabric layers which are secured together to form open-ended parallel passageways across the entire shell, comprising a plurality of elongated tubes supported at one end in a common

An apparatus for inserting a heating element into a fabric shell of an electric blanket, the shell including two spaced fabric layers which are secured together to form open-ended parallel passageways across the entire shell, comprising a plurality of elongated tubes supported at one end in a common plane and spaced for insertion into said passageways in said shell, said tubes being formed with slots which extend throughout the length of each tube, said slots in adjacent pairs of tubes being in spaced facing relationship, a leader having a leading end and a trailing end and having means to secure its trailing end to a length of a heating wire, drive means positioned at both ends of said tubes to tubes, said drive means engaging said leader and driving said leader through each of said tubes successively to draw said length of heating wire through the passageways of said shell whereby said heating wire extends continuously through said passageway.