Non-rotatable shaft/hub connection

Patent metadata

Field	Value
Publication number	US-11401975-B2
Application number	US-202016859127-A
Country	US
Kind code	B2
Filing date	Apr 27, 2020
Priority date	Apr 30, 2019
Publication date	Aug 2, 2022
Grant date	Aug 2, 2022

Abstract

A non-rotatable shaft/hub connection, providing a shaft having a tapered end and a bore, the tapered end having at least two angled faces; a hub having a tapered opening and an aperture, wherein the tapered opening is configured to receive the tapered end, the tapered opening provides at least two tapered portions. The non-rotatable shaft/hub connection provides an anti-backlash shaft/hub interface, having a shaft adapted to be rotatably driven about an axis of rotation, the shaft having a tapered end providing a tapered, double-D configuration; and a hub, having an opening configured to receive the double-D configuration of the tapered end.

First claim

The invention claimed is:

1. A non-rotatable shaft/hub connection, comprising:
a cylindrical shaft portion having a tapered end and a bore extending along a central axis and throughout the shaft portion; and
a hub portion having an aperture and a tapered opening configured to receive the tapered end, wherein the hub portion provides a tapered, double-D configuration, and
wherein the bore of the shaft portion and the aperture of the hub portion are axially aligned such that a threaded fastener can pass through the bore of the shaft body and engage the aperture to axially clamp together the shaft portion and the hub portion.

2. The shaft/hub connection as recited in claim 1 , wherein the tapered end comprises a pair of angled faces, and wherein the pair of angled faces are tapered and angled toward each other.

3. The shaft/hub connection as recited in claim 1 , wherein the tapered end comprises a tapered, double-D configuration.

4. The shaft/hub connection as recited in claim 1 , wherein the tapered opening of comprises at least two angled, tapered portions.

5. The shaft/hub connection as recited in claim 1 , wherein the hub portion fully receives and encompasses the tapered end of the shaft portion.

6. A non-rotatable shaft/hub connection, comprising:
a shaft having a tapered end and a bore, the tapered end providing at least two angled faces, wherein the tapered end comprises a tapered, double-D configuration; and
a hub having a tapered opening and an aperture, wherein the tapered opening is configured to receive the tapered end, the tapered opening providing at least two tapered portions; and
a fastener extending through the bore and received by the aperture to axially clamp together the shaft and the hub.

7. The shaft/hub connection as recited in claim 6 , wherein the at least two angled faces are tapered, and wherein the at least two tapered portions are angled.

8. The shaft/hub connection as recited in claim 7 , wherein the tapered portions extend essentially through the hub.

9. The shaft/hub connection as recited in claim 6 , wherein the tapered portions of the hub abuttingly engage with the angled faces of the tapered end.

10. The shaft/hub connection as recited in claim 6 , wherein the hub is configured to receive the double-D configuration of the tapered end.

11. The shaft/hub connection as recited in claim 6 , wherein the hub is provided in a forked configuration.

12. The shaft/hub connection as recited in claim 6 , wherein the bore and the aperture are axially aligned.

13. An anti-backlash shaft/hub interface, comprising:
a shaft adapted to be rotatably driven about an axis of rotation, the shaft having a tapered end providing a tapered, double-D configuration; and
a hub, having a two prong opening configured to receive the double-D configuration of the tapered end,
wherein the shaft further comprises a bore, and the hub further comprises an aperture, and wherein a fastener extends through the bore and is received by the aperture to clamp together the shaft and the hub; and
a collar encompassing an exterior of the hub two prong opening.

14. The shaft/hub interface as recited in claim 13 , wherein the bore and the aperture are axially aligned.

15. The shaft/hub interface as recited in claim 13 , wherein the tapered end comprises at least two angled faces, and the opening comprises at least two tapered portions.

16. The shaft/hub interface as recited in claim 15 , wherein the at least two angled faces abuttingly engage with the at least two tapered portions to eliminate backlash during rotation.

Assignees

• Mtd Products Inc

Inventors

• Maggard Jay E

Classifications

• F16D1/108 Primary

  having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling · CPC title

• F16D1/0888

  the key having two axially tapered interengaging parts · CPC title