Dust cover for automatic chuck
OwnerDaniel Puzioinventor
Life of this patent
Estimating the term…
Abstract
The jaw mechanism has a plurality of jaw members or elements which are slidably disposed within corresponding channels defined in a rotatable body. A threaded body which is configured to be rotated either in a first or second direction is rotatably disposed about and engaged with the jaws. A thrust bearing assembly is configured to interface with the threaded body to rotate the threaded body to close the jaws when rotated. A dust cover is provided to cover the jaw mechanism. A grommet is provided which is annularly disposed about the bit to restrict dust from entering through the chuck jaw elements.
Claims19
A tool comprising:
- a drive;
- a self-tightening chuck assembly comprising,
- a jaw assembly having a plurality of jaw elements, the jaw elements movable from a first disengaged to an engaged position;
- a drive member configured to drive the jaw elements from the disengaged to engaged position;
- an impact assembly configured to apply rotational forces to the drive member;
- and
- a dust cover configured to cover the self-tightening chuck assembly.
A self-tightening chuck assembly comprising:
- a jaw assembly having a plurality of jaw elements, the jaw elements movable from a first disengaged to an engaged position;
- an intermittently engageable socket member configured to drive the jaw elements from the disengaged to the engaged position;
- an impact assembly configured to intermittently apply anti-rotational forces to the socket member, the impact assembly having an impact ring, a spring, and a spring support member, the impact assembly configured to apply a first axial force onto the socket member when the jaw assembly is rotated with respect to the socket member in a first direction, and a second axial force onto the socket member when the jaw assembly is rotated with respect to the socket member in a second direction;
- and
- a dust cover configured to cover a portion of the jaw assembly.
A drill chuck comprising:
- a spindle that is adapted to be coupled to a source of rotational power;
- a plurality of jaw members slidably supported on the spindle;
- a threaded socket disposed about the spindle and threadably engaged with at least one of the jaw members;
- a spring disposed about the spindle;
- an impacting structure being disposed about the spindle and being biased towards the threaded socket by the spring, the impacting structure including a ring having a first set of structure teeth configured to interact with a structure on the threaded sockets, wherein the ring is moveable from a first location to a second location, said spring having a first compressed length when the ring is in the first location;
- and
- a dust cover configured to cover the impacting structure, said dust cover defines a generally closed body and an end portion defining an aperture, said body being non-rotatably coupled to a tool housing.
Dependencies are inferred from the claim text.