Quick-change attachment configuration for a hole saw

摘要

A quick-change attachment configuration is directed to a tool for use with a hole saw for boring holes on a wooden plank, particularly the quick-change attachment configuration is arranged for quickly replacing a longitudinal body, which is a drill bit shank having a driving end, a tool end, and a limiting portion. The configuration includes a quick-change attachment for assembling a longitudinal body and a hole saw which has an axial hole for allowing a longitudinal body to move on the quick-change attachment, and a locking component for locking and releasing the longitudinal body on and from the quick-change attachment. The locking component has a first component and a second component, which when used, the longitudinal body is easily moved slidably and locked so the shreddings emerging from the hole saw are cleaned.

主权项

1. A tool, comprising:
a hole saw having a threaded aperture, a closed end, and coupling apertures; a longitudinal body having a driving end, a tool end, and a limiting portion between said driving end and said tool end; and a quick-change attachment means which comprises: a locking component which comprises a first component having first attachment apertures, positioning apertures, an attachment portion, a threaded portion detachably coupled at said threaded aperture of said hole saw, and an axial hole extended through said attachment portion and said threaded portion, wherein said longitudinal body passes through said axial hole of said first component and said threaded aperture of said hole saw, wherein said first attachment apertures and said positioning apertures are located in a radial direction of said axial hole; a positioning component having a second central hole wherein said attachment portion of said first component passes therethrough, wherein said positioning component is movable in an axial direction of said first component; two actuating pins extended from said positioning component to engage with said positioning apertures of said first component to guide an axial displacement of said positioning component with respect to said first component; two locking pins extended from said positioning component through said first attachment apertures to detachably couple with said coupling apertures of said hole saw respectively, wherein when said positioning component is axially moved toward said first component, said pins are driven to move to engage with said coupling apertures of said hole saw respectively, and when said positioning component is axially moved away from said first component, said pins are driven to move to detach from said coupling apertures of said hole saw respectively, so as to allow said hole saw to be detached from said first component.