Blade retaining tool head
OwnerDonald Gringerinventor
Life of this patent
Estimating the term…
Abstract
An improved tool head for releasably retaining a blade includes a body and a clamping member pivotally hinged together for relative movement therebetween by rotation of a threaded operating member. The operating member is rotatable to axially move the same into threaded engagement with the body and clamping member and, at a final point in its axial translation, contacts a camming structure on the clamping member. Engagement of the operating member with the camming structure applies a laterally directed force to the clamping member, pivoting the same about its hinged connection to the body and carrying a pair of blade receiving lips on the body and clamping member into relative blade-retaining proximity to firmly secure a blade between the lips.
Claims20
A tool head for releasably retaining a blade, comprising:
- a body having a first blade receiving lip and first thread means remote from said lip;
- a clamping member having a second blade receiving lip and second thread means remote from said second lip;
- cooperatively interengaging hinge means on said body and clamping member for enabling connected relative pivotal movement therebetween to carry said first and second lips into and out of relative blade retaining proximity, said hinge means on each of said body and clamping member being disposed intermediate said respective lip and thread means;
- a threaded operating member rotatably engageable with said first and second thread means;
- and
- camming means on at least one of said clamping member and operating member and engageable with the other of said clamping member and operating member as the operating member is rotated to a locking position to cause said relative pivotal movement of the clamping member and body about said hinge means thereby carrying said lips into blade retaining proximity for securely clamping a blade between said lips.
Dependencies are inferred from the claim text.