Quick connect mechanism for a draw stud assembly
AssigneeMilwaukee Electric Tool Corporation
InventorsJames O. Myrhum, Jr., Sean T. Kehoe
Life of this patent
Estimating the term…
Abstract
An apparatus for creating holes in a workpiece includes a knockout punch tool having a movable piston. The apparatus also includes a draw stud assembly having a connector attachable to the movable piston, a draw stud, and a quick connect mechanism including mating first and second thread segments on the connector and the draw stud, respectively. The connector and the draw stud are movable between a first relative orientation where the mating first and second thread segments are misaligned to permit axial movement between the connector and the draw stud, and a second relative orientation where the mating first and second thread segments are aligned and engaged to inhibit axial movement between the connector and the draw stud.
Claims21
An apparatus for creating holes in a workpiece, the apparatus comprising:
- a knockout punch tool including a movable piston;
- and
- a draw stud assembly including
- a connector attachable to the movable piston,
- a draw stud including a first end and a second end,
- a cutter coupled to the first end of the draw stud such that the second end of the draw stud is configured to be insertable through a pre-formed hole in the workpiece, and
- a connect mechanism including mating first and second thread segments on the connector and the draw stud, respectively;
- wherein the connector and the draw stud are movable between a first relative orientation where the mating first and second thread segments are misaligned to permit axial movement between the connector and the draw stud, and a second relative orientation where the mating first and second thread segments are aligned and engaged to inhibit axial movement between the connector and the draw stud, and
- wherein the connect mechanism further includes a control thread segment adjacent one of the first thread segment or the second thread segment, wherein the control thread segment inhibits the connector and the draw stud from being rotated from the first relative orientation to the second relative orientation when the control thread segment is circumferentially aligned with any threads in the other of the first thread segment or the second thread segment, an end of the control thread segment including a notch for limiting a relative rotation of the draw stud and the connector.
An apparatus for creating holes in a workpiece, the apparatus comprising:
- a knockout punch tool including a movable piston;
- and
- a draw stud assembly including
- a connector attachable to the movable piston,
- a draw stud including a first end and a second end,
- a cutter coupled to the first end of the draw stud such that the second end of the draw stud is configured to be insertable through a pre-formed hole in the workpiece, and
- a connect mechanism including mating first and second thread segments on the connector and the draw stud, respectively;
- wherein the connector and the draw stud are movable between a first relative orientation where the mating first and second thread segments are misaligned to permit axial movement between the connector and the draw stud, and a second relative orientation where the mating first and second thread segments are aligned and engaged to inhibit axial movement between the connector and the draw stud,
- wherein the connect mechanism further includes a plurality of detent recesses defined in one of the connector or the draw stud, each of the plurality of detent recesses engageable with a detent within the other of the connector or the draw stud,
- wherein the detent is received by a bore including a biasing member that biases the detent outward from the bore, and
- wherein in the first relative orientation, the detent is biased toward and received by a first detent recess and in the second relative orientation, the detent is biased toward and received by a second detent recess.
Dependencies are inferred from the claim text.