Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing
First Claim
1. A transmission sub-assembly for a multi-mode drill comprising:
- an output spindle;
a transmission being configured to transfer torque from an output member of a motor to the output spindle;
a transmission housing that encloses the transmission within an interior cavity, the interior cavity being formed by an gear case shell and a cover plate, the cover plate being substantially planar and coupled to the outer shell via at least one fastener;
a shift assembly supported adjacent one end by the cover plate, the shift assembly comprising a shift member that is moveable between a first mode position and a second mode position;
a biasing member positioned to exert a biasing force that acts on the cover plate from one end of the biasing member and that acts on the shift member tending to move the shift member toward the first mode position from an opposing end of the biasing member.
1 Assignment
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Accused Products
Abstract
A multi-mode drill can include a transmission to transfer torque from an output member of a motor to an output spindle. A transmission housing encloses the transmission in an interior cavity formed by a gear case shell and a cover plate. The cover plate can be coupled to the outer shell via screws. A static shift rod can be supported at one end by the cover plate. A shift bracket can be mounted on the shift rod and biased to a mode position by a biasing member exerting a force between the shift bracket and the cover plate. A shift pin can be supported adjacent one end by the cover plate and biased to a mode position by a biasing member exerting a force between the shift pin and the cover plate. A spindle biasing member can bias the output spindle against the cover plate. The shift pin can actuate an electronic switch. A motor housing can be coupled to the transmission housing with fasteners so that the cover fasteners are not accessible.
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Citations
29 Claims
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1. A transmission sub-assembly for a multi-mode drill comprising:
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an output spindle; a transmission being configured to transfer torque from an output member of a motor to the output spindle; a transmission housing that encloses the transmission within an interior cavity, the interior cavity being formed by an gear case shell and a cover plate, the cover plate being substantially planar and coupled to the outer shell via at least one fastener; a shift assembly supported adjacent one end by the cover plate, the shift assembly comprising a shift member that is moveable between a first mode position and a second mode position; a biasing member positioned to exert a biasing force that acts on the cover plate from one end of the biasing member and that acts on the shift member tending to move the shift member toward the first mode position from an opposing end of the biasing member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A multi-mode drill comprising:
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a motor with an output member; an output spindle driven by the output member of the motor; a transmission being configured to transfer torque from the output member of the motor to the output spindle; a transmission housing that encloses the transmission in an interior cavity, the interior cavity being formed by a gear case shell and a cover plate, the cover plate coupled to the outer shell via at least one cover fastener; a shift pin supported adjacent one end by the cover plate, the shift pin being moveable between a first mode position and a second mode position; a biasing member contacting the cover plate and exerting a biasing force against the cover plate and which acts on the shift pin tending to move the shift member toward the first mode position. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A multi-mode drill comprising:
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a motor with an output member; an output spindle driven by the output member of the motor; a transmission being configured to transfer torque from the output member of the motor to the output spindle; a transmission housing that encloses the transmission in an interior cavity, the interior cavity being formed by a gear case shell and a cover plate, the cover plate having an attached position which closes an opening of the gear case shell wherein the cover plate is coupled to the gear case shell via at least one cover fastener; a static shift rod supported at one end by the cover plate; a shift bracket mounted on the static shift rod, the shift bracket being movable between a first mode position and a second mode position; a biasing member retained in a compressed state by the cover plate when the cover plate is in the attached position, and in the compressed state the biasing member generates a biasing force acting on the cover plate which tends to move the shift bracket toward the first mode position. - View Dependent Claims (18, 19, 20, 21)
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22. A multi-mode drill comprising:
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a motor with an output member; an output spindle driven by the output member of the motor; a transmission being configured to transfer torque from the output member of the motor to the output spindle; a transmission housing that encloses the transmission in an interior cavity, the interior cavity being formed by a gear case shell and a cover plate, the cover plate coupled to the outer shell via at least one cover fastener; a static shift rod supported at one end by the cover plate; a shift bracket mounted on the static shift rod, the shift bracket being movable between a first shift bracket mode position and a second shift bracket mode position; a shift bracket biasing member configured to exert a biasing force between the cover plate and the shift bracket which tends to move the shift bracket toward the first mode position and thereby exerting a biasing force on the cover plate; a shift pin supported adjacent one end by the cover plate, the shift pin being moveable between a first shift pin mode position and a second shift pin mode position; a shift pin biasing member configured to exert a biasing force between the cover plate and the shift pin which tends to move the shift member toward the first mode position and thereby exerting a biasing force on the cover plate. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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Specification