Haptic actuator having movable bodies along an arcuate path of travel and related methods

Patent metadata

Field	Value
Publication number	US-10510224-B2
Application number	US-201815945912-A
Country	US
Kind code	B2
Filing date	Apr 5, 2018
Priority date	Apr 5, 2018
Publication date	Dec 17, 2019
Grant date	Dec 17, 2019

Abstract

A haptic actuator may include first and second bodies movable along an arcuate path of travel. The haptic actuator may also include a biasing member coupled between the first and second bodies. At least one electrical coil may be configured to move the first and second bodies to produce a haptic effect.

First claim

That which is claimed is:

1. A haptic actuator comprising:
an arcuate track;
first and second bodies mounted to the arcuate track and movable along an arcuate path of travel defined by the arcuate track;
a spring coupled between the first and second bodies and permitting biased relative movement between the first and second bodies so that the first and second bodies are movable along the arcuate track relative to each other; and
at least one electrical coil configured to move the first and second bodies along the arcuate track to produce a haptic effect.

2. The haptic actuator of claim 1 wherein the arcuate path of travel comprises at least a portion of a circular path of travel.

3. The haptic actuator of claim 1 further comprising a controller configured to operate the at least one electrical coil to move the first and second bodies in opposite directions.

4. The haptic actuator of claim 1 further comprising a controller configured to operate the at least one electrical coil to move the first and second bodies in a common direction.

5. The haptic actuator of claim 1 wherein the first and second bodies have a same mass.

6. The haptic actuator of claim 1 wherein the first and second bodies each comprises magnetic material.

7. An electronic device comprising:
a housing;
wireless communications circuitry carried by the housing;
a haptic actuator carried by the housing and comprising
an arcuate track,
first and second bodies mounted to the arcuate track and movable along an arcuate path of travel defined by the arcuate track,
a spring coupled between the first and second bodies and permitting biased relative movement between the first and second bodies so that the first and second bodies are movable along the arcuate track relative to each other,
at least one electrical coil configured to move the first and second bodies along the arcuate track to produce a haptic effect; and

a controller coupled to the wireless communications circuitry and the haptic actuator and configured to perform at least one wireless communications function and operate the haptic actuator, respectively.

8. The electronic device of claim 7 wherein the arcuate path of travel comprises at least a portion of a circular path of travel.

9. The electronic device of claim 7 wherein the controller is configured to operate the at least one electrical coil to move the first and second bodies in opposite directions.

10. The electronic device of claim 7 wherein the controller is configured to operate the at least one electrical coil to move the first and second bodies in a common direction.

11. A method of producing a haptic effect comprising:
operating at least one electrical coil of a haptic actuator to move first and second bodies of the haptic actuator along an arcuate path of travel to produce the haptic effect, the haptic actuator comprising an arcuate track mounting the first and second bodies and defining the arcuate path of travel, and a spring coupled between the first and second bodies and permitting biased relative movement between the first and second bodies so that the first and second bodies are movable relative to each other along the arcuate track.

12. The method of claim 11 wherein the arcuate path of travel comprises at least a portion of a circular path of travel.

13. The method of claim 11 wherein operating the at least one coil comprises using a controller to operate the at least one coil to move the first and second bodies in opposite directions.

14. The method of claim 11 wherein operating the at least one coil comprises using a controller to operate the at least one coil to move the first and second bodies in a common direction.

15. A haptic actuator comprising:
a shaft defining a common pivot point;
first and second bodies coupled to the shaft and movable about the common pivot point along an arcuate path of travel;
a biasing member coupled between the first and second bodies and permitting biased relative movement between the first and second bodies so that the first and second bodies are movable about the common pivot point relative to each other; and
at least one electrical coil configured to move the first and second bodies about the common pivot point, the at least one electrical coil being configured to move the first and second bodies
in opposite directions such that the first and second bodies move away from one another to produce a first haptic effect, and
in a same direction such that the first and second bodies move to produce a second haptic effect.

16. The haptic actuator of claim 15 wherein the arcuate path of travel comprises at least a portion of a circular path of travel.

17. The haptic actuator of claim 15 further comprising a controller configured to operate the at least one electrical coil to move the first and second bodies in the opposite directions.

18. The haptic actuator of claim 15 further comprising a controller configured to operate the at least one electrical coil to move the first and second bodies in the same direction.

19. The haptic actuator of claim 15 wherein the first and second bodies have a same mass.

20. The haptic actuator of claim 15 wherein the first and second bodies each comprises magnetic material.

21. The haptic actuator of claim 15 wherein the biasing member comprises a spring.

22. An electronic device comprising:
a housing;
wireless communications circuitry carried by the housing;
a haptic actuator carried by the housing and comprising
a shaft defining a common pivot point,
first and second bodies coupled to the shaft and movable about the common pivot point along an arcuate path of travel,
a biasing member coupled between the first and second bodies and permitting biased relative movement between the first and second bodies so that the first and second bodies are movable about the common pivot point relative to each other, and

at least one electrical coil configured to move the first and second bodies about the common pivot point, the at least one electrical coil being configured to move the first and second bodies
in opposite directions such that the first and second bodies move away from one another to produce a first haptic effect, and
in a same direction such that the first and second bodies move to produce a second haptic effect; and

a controller coupled to the wireless communications circuitry and the haptic actuator and configured to perform at least one wireless communications function and operate the haptic actuator, respectively.

23. The electronic device of claim 22 wherein the arcuate path of travel comprises at least a portion of a circular path of travel.

24. The electronic device of claim 22 wherein the controller is configured to operate the at least one electrical coil to move the first and second bodies in the opposite directions.

25. The electronic device of claim 22 wherein the controller is configured to operate the at least one electrical coil to move the first and second bodies in the same direction.

26. A method of producing a haptic effect comprising:
operating at least one electrical coil of a haptic actuator to move first and second bodies of the haptic actuator along an arcuate path of travel, the haptic actuator comprising a shaft defining a common pivot point mounting the first and second bodies, and a biasing member coupled between the first and second bodies and permitting bia

Assignees

• Apple Inc

Inventors

• Sen Yi-Heng
• Harrison Jere C
• Speltz Alex J

Classifications

• A63F13/92

  Video game devices specially adapted to be hand-held while playing · CPC title

• A63F13/285

  Generating tactile feedback signals via the game input device, e.g. force feedback · CPC title

• G08B6/00 Primary

  Tactile signalling systems, e.g. tactile personal calling systems · CPC title

• H02K7/065 Primary

  Electromechanical oscillators; Vibrating magnetic drives · CPC title

• B06B1/12

  operating with systems involving reciprocating masses · CPC title