公开(公告)号：US10137507B2

公开(公告)日：2018-11-27

申请号：US15608428

申请日：2017-05-30

Applicant: IRWIN INDUSTRIAL TOOL COMPANY

Inventor： Joseph Novak ,  Justin Beach ,  William Korb

IPC: B23B51/04

Abstract: A hole cutter can include a cylindrical blade body with a cutting edge and one or more axially-elongated apertures. Each axially-elongated aperture can include a first fulcrum axially spaced from the cutting edge, and a second fulcrum axially spaced further away from the cutting edge than the first fulcrum. The blade body can also include a third fulcrum defined by a second aperture different from the one or more axially-elongated apertures. The third fulcrum may be spaced closer to the cutting than the first and second fulcrums. A lever, such as a screw driver, can be inserted into the apertures and placed against each of the fulcrums to lever slugs out of the interior of the blade body. The third fulcrum may alternatively be defined by another axially-elongated aperture that is located a different distance from the cutting edge than the axially-elongated aperture containing the first and second fulcrums.

公开(公告)号：US20170066064A1

公开(公告)日：2017-03-09

申请号：US15254926

申请日：2016-09-01

Applicant: Irwin Industrial Tool Company

Inventor： Joseph Novak ,  William Korb ,  Justin Beach

IPC: B23B51/04

CPC classification number: B23B51/0453 ,  B23B2251/428 ,  B23B2270/28 ,  Y10T408/895

Abstract: A hole cutter can include a cylindrical blade body with a cutting edge and one or more axially-elongated apertures. Each axially-elongated aperture can include a first fulcrum axially spaced from the cutting edge, and a second fulcrum axially spaced further away from the cutting edge than the first fulcrum. The blade body can also include a third fulcrum defined by a second aperture different from the one or more axially-elongated apertures. The third fulcrum may be spaced closer to the cutting than the first and second fulcrums. A lever, such as a screw driver, can be inserted into the apertures and placed against each of the fulcrums to lever slugs out of the interior of the blade body. The third fulcrum may alternatively be defined by another axially-elongated aperture that is located a different distance from the cutting edge than the axially-elongated aperture containing the first and second fulcrums.

Abstract translation: 孔切割器可以包括具有切割边缘和一个或多个轴向细长孔的圆柱形刀片体。 每个轴向细长的孔可以包括与切割边缘轴向间隔开的第一支点和与第一支点相比轴向间隔开比切割边缘更远的第二支点。 刀片体还可以包括由不同于一个或多个轴向细长孔的第二孔限定的第三支点。 第三支点可以比第一和第二支点更接近切割。 杠杆（例如螺丝刀）可以插入孔中并放置在每个支点上，以将块塞从叶片本体的内部拉出。 可选择地，第三支点由另一个轴向细长的孔限定，该孔与位于与切割边缘不同的距离处比包含第一和第二支点的轴向细长的孔定位。

公开(公告)号：US09884374B2

公开(公告)日：2018-02-06

申请号：US15254926

申请日：2016-09-01

Applicant: Irwin Industrial Tool Company

Inventor： Joseph Novak ,  William Korb ,  Justin Beach

IPC: B23B51/04

CPC classification number: B23B51/0453 ,  B23B2251/428 ,  B23B2270/28 ,  Y10T408/895

Abstract: A hole cutter can include a cylindrical blade body with a cutting edge and one or more axially-elongated apertures. Each axially-elongated aperture can include a first fulcrum axially spaced from the cutting edge, and a second fulcrum axially spaced further away from the cutting edge than the first fulcrum. The blade body can also include a third fulcrum defined by a second aperture different from the one or more axially-elongated apertures. The third fulcrum may be spaced closer to the cutting than the first and second fulcrums. A lever, such as a screw driver, can be inserted into the apertures and placed against each of the fulcrums to lever slugs out of the interior of the blade body. The third fulcrum may alternatively be defined by another axially-elongated aperture that is located a different distance from the cutting edge than the axially-elongated aperture containing the first and second fulcrums.