Powered fastener driver
AssigneeMilwaukee Electric Tool Corporation
InventorsCoby A. Nettleton, Leonard F. Mikat-Stevens, Marcus Wechselberger, David C. Graf, Alex D. Servais
Life of this patent
Estimating the term…
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 piston, a driver blade attached to the piston, a biasing member having a first end supported within the piston and a second end supported by the head portion, and a damper positioned between the firing mechanism and the head portion of the housing. The damper configured to attenuate one or more of noise or vibration from the firing mechanism as the driver blade moves from the top dead center position toward the bottom dead center position.
Claims16
A fastener driver comprising:
- a housing defining a head portion and a handle portion;
- a drive mechanism positioned within the housing;
- a firing mechanism including
- a piston,
- a driver blade attached to the piston, and
- a biasing member having a first end supported within the piston and a second end supported by the head portion, the biasing member configured to move the piston and the driver blade from a top dead center position toward a bottom dead center position;
- a damper positioned between the firing mechanism and the head portion of the housing, the damper configured to attenuate one or more of noise or vibration from the firing mechanism as the driver blade moves from the top dead center position toward the bottom dead center position;
- and
- a lifter assembly operated by the drive mechanism to return the piston and the driver blade towards the top dead center position, against the bias of the biasing member,
- wherein the damper includes a first side in engagement with an outer diameter of the biasing member and a second side in engagement with an internal surface of the head portion, and
- wherein the first side of the damper includes a wear-resistance layer configured to contact the biasing member.
A fastener driver comprising:
- a housing defining a head portion and a handle portion;
- a drive mechanism positioned within the housing;
- a firing mechanism including
- a piston,
- a driver blade attached to the piston, and
- a biasing member having a first end supported within the piston and a second end supported by the head portion, the biasing member configured to move the piston and the driver blade from a top dead center position toward a bottom dead center position;
- a damper positioned between the biasing member and the head portion of the housing, the damper configured to engage the biasing member to attenuate one or more of noise or vibration from the firing mechanism as the driver blade moves from the top dead center position toward the bottom dead center position;
- and
- a lifter assembly operated by the drive mechanism to return the piston and the driver blade towards the top dead center position, against the bias of the biasing member,
- wherein the head portion defines a recess positioned adjacent the biasing member, and
- wherein the damper is at least partially disposed within the recess.
Dependencies are inferred from the claim text.