US 2014/0369775 A1Published application

Quick-Change Attachment Configuration for a Hole Saw

AssigneeRote Mate Industry Co., Ltd.

InventorYing-Tsung Lai

Life of this patent

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Abstract

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

Claims22

Dependent claims

A quick-change attachment configuration for a hole saw, 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, wherein the limiting portion operates to lock the quick-change apparatus onto the longitudinal body by a locking component;
and
a quick-change attachment means comprising the locking component and a positioning component, wherein the locking component comprises a first component and a second component, in which the first component has an attachment portion where the attachment portion is provided with axial holes on two ends of the attachment portion in a radial direction, the axial holes are set up to be fitted with a retaining ball kept herein in a pressed position and a released position by displacement of the second component in an axial direction, so as to lock and release the longitudinal body in a quick-change fashion, and the positioning component has a mortise joint where two pins disposed thereon, so that the pins operate to attach or detach the attachment means onto the circular hole saw by way of axial displacement of the positioning component.

1 more element

A quick-change attachment configuration for a hole saw, 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, wherein the limiting portion operates to lock the quick-change apparatus onto the longitudinal body by a locking component;
and
a quick-change attachment means comprising the locking component and a positioning component, wherein the locking component comprises a first component in which the first component has axial holes, an attachment portion, a threaded portion, first apertures, and retaining balls, the attachment portion has locking apertures on two ends in a radial direction, and the positioning component comprises a second central hole, receiving holes, mortises, and two pins.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 13/916,898Filed 13 Jun 2013
Published: 18 Dec 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

B23B 51/0473
Drills for trepanning: details about the connection between the driven shaft and the tubular cutting part; Arbors
B23B 31/1071
Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls: retention by balls
B23B 51/0426
Drills for trepanning: with centering devices
Y10T 408/895
Tool or Tool with support: having axial, core-receiving central portion