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.

公开(公告)号：US20150059193A1

公开(公告)日：2015-03-05

申请号：US14538293

申请日：2014-11-11

Applicant: Irwin Industrial Tool Company

Inventor： Matthew C. Green ,  Joseph Novak ,  Peter Weremchuk

IPC: B23D49/12

CPC classification number: B23D49/12 ,  B23D51/125

Abstract: A hacksaw with an improved mechanism for applying and adjusting the tension on a blade mounted to a blade mount on a front arm and a blade mount on a rocker arm. The rocker arm is pivotally coupled to a handle and is spring biased to place an initial tension on a blade held by the rocker arm and the front arm. A rotatably mounted lever is positioned on the handle for vertically displacing a nut captured in the rocker arm to pivot the rocker arm and adjust the tension on the rocker arm-held blade. An elongate top frame bar of the hacksaw defines a hollow I-beam cross-section accessible from the face of the front handle and is capable of storing saw blades. A bale screw is positioned in the front member for securing the blades in a position extending past the front handle.

Abstract translation: 具有改进的机构的钢锯，用于施加和调节安装到前臂上的刀片安装件上的刀片上的张力和在摇臂上的刀片安装件。 摇臂枢转地联接到手柄并且被弹簧偏置以将初始张力放置在由摇臂和前臂保持的刀片上。 可旋转地安装的杠杆位于手柄上，用于垂直移动捕获在摇臂中的螺母以枢转摇臂并调节摇臂支撑叶片上的张力。 钢锯的细长顶框架限定了可从前手柄的表面接近的中空的I型梁横截面，并且能够存储锯片。 捆扎螺钉位于前部构件中，用于将叶片固定在延伸通过前手柄的位置。

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：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：US09744604B2

公开(公告)日：2017-08-29

申请号：US14538293

申请日：2014-11-11

Applicant: Irwin Industrial Tool Company

Inventor： Matthew C Green ,  Joseph Novak ,  Peter Weremchuk

IPC: B23D49/12 ,  B23D51/12

CPC classification number: B23D49/12 ,  B23D51/125

Abstract: A hacksaw with an improved mechanism for applying and adjusting the tension on a blade mounted to a blade mount on a front arm and a blade mount on a rocker arm. The rocker arm is pivotally coupled to a handle and is spring biased to place an initial tension on a blade held by the rocker arm and the front arm. A rotatably mounted lever is positioned on the handle for vertically displacing a nut captured in the rocker arm to pivot the rocker arm and adjust the tension on the rocker arm-held blade. An elongate top frame bar of the hacksaw defines a hollow I-beam cross-section accessible from the face of the front handle and is capable of storing saw blades. A bale screw is positioned in the front member for securing the blades in a position extending past the front handle.