Drive plate with lanced drive tabs
View Patent ↗A drive plate for a torque converter, including: an annular shaped inner portion including an inner periphery for the drive plate and a plurality of openings for receiving fasteners for connection to a front cover of the torque converter; a plurality of outer portions along an outer periphery for the drive plate; and a respective drive tab for each outer portion. The respective drive tab includes: a top surface disposed outward from said each outer portion in an axial direction and substantially orthogonal to an axis of rotation for the drive plate; an opening in the top surface for receiving a fastener for connecting the drive plate to a flex plate; and first and second surfaces extending from the top surface and substantially parallel to an axis of rotation for the drive plate.
1. A drive plate for a torque converter, comprising:
an annular shaped inner portion including an inner periphery for the drive plate and a plurality of openings for receiving fasteners for connection to a front cover of the torque converter;
a plurality of outer portions along an outer periphery for the drive plate; and,
a respective drive tab for each outer portion, the respective drive tab including:
a top surface disposed outward from said each outer portion in an axial direction and substantially orthogonal to an axis of rotation for the drive plate;
an opening in the top surface for receiving a fastener for connecting the drive plate to a flex plate; and,
first and second side surfaces extending from the top surface and substantially parallel to an axis of rotation for the drive plate.
2. The drive plate of claim 1 wherein:
each outer portion includes a respective first surface; and,
the first and second side surfaces are separated from the respective first surfaces by respective spaces.
3. The drive plate of claim 1 wherein:
said each outer portion and the top surface are formed from a single piece of material;
the first and second side surfaces are separated in the axial direction by respective spaces from said each outer portion; and,
the first and second side surfaces have a uniform dimension parallel to the axis of rotation.
4. The drive plate of claim 1 wherein the outer periphery is at a uniform radial distance from the axis of rotation between said each outer portion.
5. The drive plate of claim 1 wherein said each outer portion protrudes radially outward from the inner portion and is separated in a circumferential direction from adjacent outer portions by a respective space.
6. The drive plate of claim 5 wherein the respective spaces open radially outward.
7. The drive plate of claim 1 wherein:
the first and second surfaces are for engagement with respective surfaces for protrusions for a testing device;
the first and second side surfaces and the respective surfaces for the protrusions are substantially parallel during the engagement; and,
the testing device is for applying a torque load to the first and second side surfaces when the drive plate is secured to the front cover such that the torque load is transferred to the front cover causing the front cover to rotate.
8. A drive plate for a torque converter, comprising:
an annular shaped inner portion including an inner periphery for the drive plate and a plurality of openings for receiving fasteners for connection to a front cover of the torque converter;
a plurality of outer portions along an outer periphery for the drive plate; and,
a respective drive tab for each outer portion, the respective drive tab including:
a top surface disposed outward from said each outer portion in an axial direction and substantially orthogonal to an axis of rotation for the drive plate;
an opening in the top surface for receiving a fastener for connection to a flex plate; and,
first and second side surfaces extending from the top surface and substantially parallel to an axis of rotation for the drive plate, wherein:
each outer portion includes a respective first surface;
the plurality of outer portions and the respective drive tabs are formed from one only single piece of material;
the first and second side surfaces are separated by respective spaces from the respective first surfaces; and,
the first and second side surfaces have a uniform dimension parallel to the axis of rotation.
9. The drive plate of claim 8 wherein:
the first and second side surfaces are for engagement with respective surfaces for protrusions for a testing device;
the first and second side surfaces and the respective surfaces for the protrusions are substantially parallel during the engagement; and,
the testing device is for applying a torque load to the first and second side surfaces when the drive plate is secured to the front cover such that the torque load is transferred to the front cover causing the front cover to rotate.
10. A drive plate for a torque converter, comprising:
an annular shaped inner portion including an inner periphery for the drive plate and a plurality of openings for receiving fasteners for connection to a front cover of the torque converter;
a plurality of outer portions forming an outer periphery for the drive plate, each outer portion in the plurality of outer portions:
extending from the inner portion in a direction orthogonal to an axis of rotation for the drive plate; and,
including a respective first surface;
a respective drive tab for each outer portion, the respective drive tab:
extending from the respective first surface; and,
including:
a top surface;
an opening in the top surface for receiving a fastener for connecting the drive plate to a flex plate; and,
first and second side surfaces extending from the top surface, wherein a circle centered on an axis of rotation for the drive plate and orthogonal to the axis of rotation passes axially between the respective first surfaces and the top surfaces without intersecting the first and second side surfaces.