Angle attachment for power tool
First Claim
1. A removable angle attachment for a power tool, comprising:
- (a) an angle attachment housing;
(b) an attachment shaft mounted provided in the angle attachment housing and having an attachment end extending therefrom ;
(c) a first an attachment shaft bearing mounted provided in the angle attachment housing and positioned therein configured to support the attachment shaft for rotational movement thereof;
(d) an attachment shaft gear attached to the attachment shaft; and
(e) an alignment bearing mounted positioned in the angle attachment housing and adapted to removably receive a distal end of a first shaft having a first shaft gear mounted thereon to support the first shaft for rotational movement thereof and positioned in the angle attachment housing such that when the first shaft is positioned in the alignment bearing the attachment shaft is at an angle to the first shaft and the attachment shaft gear is engaged with the first shaft gear.
2 Assignments
0 Petitions
Accused Products
Abstract
An angle attachment of a hand-held power tool, such as a spiral cutting tool, includes an angle attachment housing having an open first end adapted to be attached to the motor housing of the power tool. An alignment bearing is mounted in the angle attachment housing and adapted to receive and support a first shaft having a first shaft gear mounted thereon. An attachment shaft is mounted in the angle attachment housing at an angle, e.g., a right angle, to the first shaft. The attachment shaft includes an attachment shaft gear mounted thereon which is engaged with the first shaft gear. One or more attachment shaft bearings are mounted in the angle attachment housing to support the attachment shaft for rotational movement thereof. The first shaft is coupled to a motor shaft of the power tool before the angle attachment housing is attached to the power tool motor housing. Rotation of the first shaft by the power tool motor causes rotation of attachments attached to the attachment shaft mounted at an angle to the first shaft by means of the gear mechanism formed by the engaged first shaft gear and attachment shaft gear.
22 Citations
36 Claims
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1. A removable angle attachment for a power tool, comprising:
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(a) an angle attachment housing;
(b) an attachment shaft mounted provided in the angle attachment housing and having an attachment end extending therefrom ;
(c) a first an attachment shaft bearing mounted provided in the angle attachment housing and positioned therein configured to support the attachment shaft for rotational movement thereof;
(d) an attachment shaft gear attached to the attachment shaft; and
(e) an alignment bearing mounted positioned in the angle attachment housing and adapted to removably receive a distal end of a first shaft having a first shaft gear mounted thereon to support the first shaft for rotational movement thereof and positioned in the angle attachment housing such that when the first shaft is positioned in the alignment bearing the attachment shaft is at an angle to the first shaft and the attachment shaft gear is engaged with the first shaft gear. - View Dependent Claims (2, 5, 6, 9, 13, 25)
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3. An angle attachment for a power tool, comprising:
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(a) an angle attachment housing including an open first end and wherein the open first end of the angle attachment housing is sized and shaped adapted to fit around a portion of a motor housing of a power tool and further including means for securing the open first end of the angle attachment housing to the motor housing of the power tool;
(b) an attachment shaft mounted in the angle attachment housing and having an attachment end extending therefrom;
(c) a first attachment shaft bearing mounted in the angle attachment housing and positioned therein to support the attachment shaft for rotational movement thereof;
(d) an attachment shaft gear attached to the attachment shaft; and
(e) an alignment bearing mounted in the angle attachment housing in alignment with an axis of the open first end of the angle attachment housing and adapted to receive a first shaft having a first shaft gear mounted thereon to support the first shaft for rotational movement thereof and positioned in the angle attachment housing such that when the first shaft is positioned in the alignment bearing the attachment shaft is at an angle to the first shaft and the attachment shaft gear is engaged with the first shaft gear. - View Dependent Claims (4)
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7. An angle attachment for a power tool, comprising:
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(a) an angle attachment a housing;
;(b) an attachment shaft mounted in the angle attachment housing and having a threaded attachment end extending therefrom and an attachment shaft flange mounted on the attachment end of the attachment shaft and positioned thereon such that the threaded attachment end of the attachment shaft extends beyond the attachment shaft flange;
(c) a first attachment shaft bearing mounted in the angle attachment housing and positioned therein to support the attachment shaft for rotational movement thereof;
(d) an attachment shaft a gear attached to the attachment shaft; and
(e) an alignment bearing mounted in the angle attachment housing and adapted to receive a first shaft having a first shaft gear mounted thereon to support the first shaft for rotational movement thereof and positioned in the angle attachment housing such that ;
wherein when the first shaft is positioned in the alignment bearing the attachment shaft is at an angle to the first shaft and the attachment shaft gear is engaged with the first shaft gear.
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8. An angle attachment for a power tool, comprising:
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(a) an angle attachment housing;
(b) an attachment shaft mounted in the angle attachment housing and having an attachment end extending therefrom;
(c) an attachment shaft gear attached to the attachment shaft;
(d) a first attachment shaft bearing mounted in the angle attachment housing and positioned therein on a first side of the attachment shaft gear mounted on the attachment shaft to support the attachment shaft for rotational movement thereof;
(e) a second attachment shaft bearing mounted in the angle attachment housing and positioned therein on a second side of the attachment shaft gear mounted on the attachment shaft to support the attachment shaft for rotational movement thereof in the angle attachment housing; and
(f) an alignment bearing mounted in the angle attachment housing and adapted to receive a first shaft having a first shaft gear mounted thereon to support the first shaft for rotational movement thereof and positioned in the angle attachment housing such that when the first shaft is positioned in the alignment bearing the attachment shaft is at an angle to the first shaft and the attachment shaft gear is engaged with the first shaft gear.
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10. An angle attachment for a power tool, comprising:
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(a) an angle attachment a housing;
(b) an attachment shaft mounted in the angle attachment housing and having an attachment end extending therefrom from the housing;
(c) a first attachment shaft bearing mounted in the angle attachment housing and positioned therein to support the attachment shaft for rotational movement thereof;
(d) an attachment shaft gear attached to the attachment shaft;
(e) an alignment bearing mounted provided in the angle attachment housing and adapted to receive an first shaft having a first shaft gear mounted thereon to support the first shaft for rotational movement thereof and positioned in the angle attachment housing such that when the first shaft is positioned in the alignment bearing the attachment shaft is at an angle to the first shaft and the attachment shaft gear is engaged with the first shaft gear; and
(f) a first shaft having a first shaft gear mounted thereon positioned in the alignment bearing. - View Dependent Claims (11, 12)
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14. An angle attachment for a power tool having a motor housing, a motor located within the motor housing, a motor shaft driven by the motor and having a motor shaft end ex tending extending from the motor housing, and a mechanical structure attached to the motor shaft end for securing attachments to the motor shaft, the angle attachment comprising:
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(a) an angle attachment housing having an open first end thereof attached to the motor housing around a location where the motor shaft extends from the motor housing;
(b) an attachment shaft mounted in the angle attachment housing and having an attachment end extending from a second end thereof;
(c) a first attachment shaft bearing mounted in the angle attachment housing and positioned therein to support the attachment shaft for rotational movement thereof;
(d) an attachment shaft gear attached to the attachment shaft;
(e) an alignment bearing mounted in the angle attachment housing;
(f) a first shaft attached to the motor shaft via the mechanical structure and removably positioned in the alignment bearing at an angle to the attachment shaft to be supported by the alignment bearing for rotational movement thereof; and
(g) a first shaft gear mounted on the first shaft and engaged with the attachment shaft gear. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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26. A hand-held power tool adapted for use in a first arrangement as a rotary cutting tool and in a second arrangement with an angle attachment mounted thereto, the tool comprising:
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a housing having a first end;
a motor provided inside the housing;
a motor shaft having a first end coupled to the motor and a second end extending from the first end of the housing;
a collet nut selectively mounted to the second end of the motor shaft;
a collet selectively received inside the collet nut;
the tool being adapted in a first arrangement to support a rotary tool bit in the collet nut and collet when the tool is adapted for use as a rotary cutting tool;
the tool being adapted in a second arrangement to couple to an angle attachment, the angle attachment comprising;
an angle attachment housing, the angle attachment housing having a first end adapted for mounting to the first end of the motor housing;
a first shaft provided in the angle attachment housing and adapted to be selectively coupled to the motor shaft; and
an attachment shaft provided in the angle attachment housing so that the attachment shaft is not substantially parallel to the motor shaft, the attachment shaft being coupled to the first shaft to translate rotation of the first shaft into rotation of the attachment shaft;
wherein the attachment shaft has an attachment end extending from the angle attachment housing that is adapted to support a variety of attachments comprising cutting wheels and sanding discs. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification