公开(公告)号：US20220226977A1

公开(公告)日：2022-07-21

申请号：US17579774

申请日：2022-01-20

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Coby A. Nettleton ,  Leonard F. Mikat-Stevens ,  Alex D. Servais ,  Eric R. Albrecht ,  Jacob N. Zimmerman ,  John M. Jubeck ,  Andrew R. Palm ,  Casey L. Bonath ,  Daniel J. Sheridan

IPC: B25C5/15 ,  B25C1/00 ,  B25C1/04 ,  B25C1/06 ,  B25C1/12 ,  B25C1/18 ,  B25C5/13

Abstract: A fastener driver includes a housing defining a head portion and a handle portion, a drive mechanism positioned within the housing, and a firing mechanism. The firing mechanism includes a primary guide member supported within the head portion of the housing, a secondary guide member spaced from the primary guide member and supported within the head portion of the housing, a piston slidable along the primary guide member and the secondary guide member, a driver blade attached to the piston and configured to be movable along a drive axis, and a biasing member configured to move the piston and the driver blade from a top dead center (TDC) position toward a bottom dead center (BDC) position. A lifter assembly is operated by the drive mechanism to return the piston and the driver blade towards the TDC position, against the bias of the biasing member.

公开(公告)号：US11878400B2

公开(公告)日：2024-01-23

申请号：US17579774

申请日：2022-01-20

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Coby A. Nettleton ,  Leonard F. Mikat-Stevens ,  Alex D. Servais ,  Eric R. Albrecht ,  Jacob N. Zimmerman ,  John M. Jubeck ,  Andrew R. Palm ,  Casey L. Bonath ,  Daniel J. Sheridan

IPC: B25C5/15 ,  B25C1/04 ,  B25C1/06 ,  B25C1/00 ,  B25C5/13 ,  B25C1/12 ,  B25C1/18

CPC classification number: B25C5/15 ,  B25C1/001 ,  B25C1/047 ,  B25C1/06 ,  B25C1/123 ,  B25C1/188 ,  B25C5/13

Abstract: A fastener driver includes a housing defining a head portion and a handle portion, a drive mechanism positioned within the housing, and a firing mechanism. The firing mechanism includes a primary guide member supported within the head portion of the housing, a secondary guide member spaced from the primary guide member and supported within the head portion of the housing, a piston slidable along the primary guide member and the secondary guide member, a driver blade attached to the piston and configured to be movable along a drive axis, and a biasing member configured to move the piston and the driver blade from a top dead center (TDC) position toward a bottom dead center (BDC) position. A lifter assembly is operated by the drive mechanism to return the piston and the driver blade towards the TDC position, against the bias of the biasing member.