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US 10,328,559 B2Granted
Drill
AssigneeBlack & Decker Inc.
InventorsMarkus Rompel, Rafael Glottschling
Life of this patent
Estimating the term…
Abstract
A drill includes a housing and a motor having a drive spindle. An output spindle is capable of being rotationally driven by the drive spindle via a torque clutch. The drill further includes a tangential impact mechanism for superimposing tangential impacts onto the output spindle when activated. The tangential impact mechanism includes a sleeve rotatably mounted on the output spindle, and an anvil rotatably mounted onto the output spindle. The sleeve is rotationally driven by the drive spindle via a gear system at a first rotational rate when the torque clutch is not slipping and at a second rotational rate when the torque clutch is slipping.
Claims34
A drill comprising:
- a housing;
- a motor mounted in the housing having a drive spindle;
- an output spindle capable of being rotationally driven by the drive spindle via a torque clutch, the output spindle having an impact surface and a central axis;
- and
- a tangential impact mechanism for superimposing tangential impacts onto the output spindle when activated, the tangential impact mechanism comprising:
- a sleeve rotatably mounted on the output spindle which is capable of being rotationally driven by the drive spindle;
- and
- an anvil rotatably mounted onto the output spindle, the anvil being connected to the sleeve so that relative rotation of the sleeve and the output spindle results in the anvil repetitively striking the impact surface;
- wherein the output spindle and the sleeve are rotationally driven by the drive spindle via a gear system, the drive spindle driving the sleeve via the gear system at a first rotational rate when the torque clutch is not slipping and at a second rotational rate when the torque clutch is slipping,
- wherein the torque clutch is connected between two gears of the gear system and the two gears are co-axial.
7 more elements
A drill comprising:
- a housing;
- a motor mounted in the housing having a drive spindle;
- an output spindle capable of being rotationally driven by the drive spindle via a torque clutch, the output spindle having an impact surface and a central axis;
- and
- a tangential impact mechanism for superimposing tangential impacts onto the output spindle when activated, the tangential impact mechanism comprising:
- a sleeve rotatably mounted on the output spindle which is capable of being rotationally driven by the drive spindle;
- and
- an anvil rotatably mounted onto the output spindle, the anvil being connected to the sleeve so that relative rotation of the sleeve and the output spindle results in the anvil repetitively striking the impact surface;
- wherein the output spindle and the sleeve are rotationally driven by the drive spindle via a gear system, the drive spindle driving the sleeve via the gear system at a first rotational rate when the torque clutch is not slipping and at a second rotational rate when the torque clutch is slipping, and
- wherein the gear system comprises:
- a first gear mounted on the output spindle so that rotation of the first gear results in rotation of the output spindle;
- a second gear mounted on the sleeve so that rotation of the second gear results in rotation of the sleeve;
- and
- a third gear drivingly connected to the drive spindle, the third gear being meshed with the first and second gears, wherein the third gear is capable of rotationally driving the first and second gears.
11 more elements
A drill comprising:
- a housing;
- a motor mounted in the housing having a drive spindle;
- an output spindle capable of being rotationally driven by the drive spindle via a torque clutch, the output spindle having an impact surface and a central axis;
- and
- a tangential impact mechanism for superimposing tangential impacts onto the output spindle when activated, the tangential impact mechanism comprising:
- a sleeve rotatably mounted on the output spindle which is capable of being rotationally driven by the drive spindle;
- and
- an anvil rotatably mounted onto the output spindle, the anvil being connected to the sleeve so that relative rotation of the sleeve and the output spindle results in the anvil repetitively striking the impact surface;
- wherein the output spindle and the sleeve are rotationally driven by the drive spindle via a gear system, the drive spindle driving the sleeve via the gear system at a first rotational rate when the torque clutch is not slipping and at a second rotational rate when the torque clutch is slipping, and wherein the output spindle is a hollow output spindle.
6 more elements
A drill comprising:
- a housing;
- a motor mounted in the housing having a drive spindle;
- an output spindle capable of being rotationally driven by the drive spindle via a torque clutch, the output spindle having an impact surface and a central axis;
- and
- a tangential impact mechanism for superimposing tangential impacts onto the output spindle when activated, the tangential impact mechanism comprising:
- a sleeve rotatably mounted on the output spindle which is capable of being rotationally driven by the drive spindle;
- and
- an anvil rotatably mounted onto the output spindle, the anvil being connected to the sleeve so that relative rotation of the sleeve and the output spindle results in the anvil repetitively striking the impact surface;
- wherein the output spindle and the sleeve are rotationally driven by the drive spindle via a gear system, the drive spindle driving the sleeve via the gear system at a first rotational rate when the torque clutch is not slipping and at a second rotational rate when the torque clutch is slipping,
- wherein the anvil is biased by a spring towards engagement with the impact surface, the impact surface preventing rotation of the anvil on the output spindle when the anvil is in engagement with the impact surface, and
- wherein rotation of the sleeve on the output spindle results in the anvil moving against the biasing force of the spring away from the impact surface, the movement of the anvil relative to the sleeve being controlled by the cam mechanism.
8 more elements
Dependencies are inferred from the claim text.