Devices capable of sensing rotary motion

• US 5,028,808 A
• Filed: 07/14/1989
• Issued: 07/02/1991
• Est. Priority Date: 07/14/1989
• Status: Expired due to Fees

• Current Assignee: BOC Health Care Incorporated (General Electric Company)
• Original Assignee: BOC Health Care Incorporated (General Electric Company)
• Inventors: Roehl, Robin L., Sullivan, Terrance P.
• Primary Examiner(s): Pellinen, A. D.
• Assistant Examiner(s): Elms, Richard T.
• Application Number:
  US07/380,564
• Time in Patent Office: 718 Days
• Field of Search: 307/134, 307/122, 307/116, 307/112, 307/126, 307/119-121, 324/658, 324/660, 324/686, 324/690, 324/714, 200/600, 200/211, 200/212, 340/870.3, 340/870.37, 340/686, 340/687, 73/488, 73/491, 73/494, 73/505, 73/509, 73/517 R, 73/518, 73/519, 310/339, 361/280
• US Class Current: 307/122
• CPC Class Codes: H01H 19/56 Angularly-movable actuating part carrying contacts, e.g. drum switch
• CPC Class Codes: H01H 2019/006 being rotation direction sensitive, e.g. the generated pulse or code depends on the direction of rotation of the operating part
• CPC Class Codes: H01H 35/06 Switches operated by change of speed operated by change of fluid flow H01H35/24

Abstract

A rotation-sensing device for providing output signals that correspond to rotary hand movement made about the device by an operator is disclosed. The device comprises a cover member including an outer surface having a generally cylindrical, longitudinally elongate, non-rotatable protusion carried thereon. The protrusion projects outwardly from the outer surface and is provided with an outer periphery thereon. The device further includes a plurality of generally longitudinally elongate, circumferentially spaced, sensing means which are positioned adjacent the outer periphery of the protrusion and are responsive to the rotary hand movement of the operator for providing output signals corresponding to such movement. In addition, the device includes means coupled to the sensing means for leading the signals generated in the sensing means away from the switch device.

Claims

1. A rotation-sensing device, comprising a support;

means for holding in fixed position relative to said support a protrusion having an outer periphery;

means for sensing rotary movement occurring about said outer periphery and initiating signals corresponding thereto; and

microprocessor means in circuit with said sensing means and constructed and arranged to receive said signals and provide output data with respect to one or another or all of the following;

(i) the angular amount of rotary movement sensed by said sensing means;

(ii) the direction of such rotary movement; and

, (iii) the angular speed of such rotary movement.

2. A device according to claim 1, wherein said device is adapted to be mounted on an apparatus to be controlled thereby, said device further including means for coupling said microprocessor means to said apparatus to thereby facilitate inputting said output data to said apparatus.

7. A device according to any one of claims 1, 2-4, 5-6, wherein said outer periphery is cylindrical in shape, and wherein said sensing means includes a plurality of circumferentially spaced, longitudinally elongate switches carried within said protrusion adjacent said outer periphery thereof.

8. A device according to any one of claims 1, 2-4, 5-6, wherein said outer periphery comprises the outer surface of a generally cylindrical member, and wherein said sensing means includes a plurality of circumferentially spaced, longitudinally elongate, conductive, capacitance discharge members carried at or adjacent to said outer periphery of said cylindrical member.

9. A device according to claim 7, wherein said protrusion includes a generally cylindrical core member, and wherein said switches comprise a multi-layer cylindrical laminate positioned about the outer surface of said core member and having an outer surface which forms said outer periphery of said protrusion.

10. A device according to claim 9, wherein said multi-layer cylindrical laminate includes an inner layer having a plurality of pairs of longitudinally elongate conductive members formed on an outer surface thereof, each of which pairs corresponds to a separate one of said switches, an intermediate layer of insulating material having a plurality of longitudinally elongate cut-out portions formed therein, each of which cut-out portions is aligned with one of said pairs of conductive members, and an outer layer comprising a resilient membrane having conductive areas positioned on an inner surface thereof in alignment with corresponding pairs of conductive members on said inner layer and corresponding cut-out portions in said intermediate layer, said outer layer having an outer surface that constitutes said outer periphery of said protrusion, said multi-layer laminate being constructed and arranged so that rotary hand movements made by an operator who grasps said protrusion are reflected in corresponding closings and openings of said switches as the conductive areas of said outer layer are squeezed through corresponding cut-out portions of said intermediate layer into contact with corresponding pairs of conductive members on said inner layer and are then released.

3. A rotation-sensing device for providing output signals that correspond to rotary hand movement made about said device by an operator, said device comprising:

a cover member including an outer surface having a generally cylindrical, longitudinally elongate, non-rotatable protrusion carried thereon, said protrusion projecting outwardly from said outer surface and having an outer periphery thereon;

a plurality of generally longitudinally elongate, circumferentially spaced sensing means positioned adjacent said outer periphery and responsive to said rotary hand movement of the operator for providing output signals corresponding to said movement;

means coupled to said sensing means for leading said signals away from said device; and

microprocessor means connected in circuit with said signal leading means and constructed and arranged to interpret said signals for providing output data with respect to one or another or all of the following;

(i) the angular amount of the rotary hand movement made by the operator;

(ii) the angular direction of such rotary hand movement; and

, (iii) the angular speed of such rotary hand movement.

4. A device according to claim 3, wherein said device is adapted to be sealingly mounted on an apparatus to be controlled by said device, and wherein said protrusion is integrally formed on said outer surface of said cover member.

5. A device according to claim 3, further including means coupled to said microprocessor means for displaying said output data to the operator.

6. A device according to claim 3, wherein said device is adapted to be mounted on an apparatus to be controlled thereby, said device further including means for coupling said microprocessor means to said apparatus to thereby facilitate inputting said output data to said apparatus.

11. A rotation-sensing device, comprising a support;

means for defining a protrusion having an outer periphery in fixed position relative to said support;

means for sensing rotary movement occurring about said outer periphery and initiating signals corresponding thereto; and

means for determining from said signals the direction and angular amount of said movement.

13. A device according to claim 11 or 12, wherein said means for determining the direction and angular amount of said movement comprises a microprocessor.

15. A device according to claim 11 or 12, further comprising means for determining from said signals the speed of said movement.

17. A device according to claim 13, further including means coupled to said microprocessor for displaying data responsive to said direction and angular amount of said movement to the operator.

18. A device according to claim 11 or 12, wherein said sensing means includes a plurality of circumferentially spaced, longitudinally elongate switches carried within said protrusion adjacent said outer periphery.

19. A device according to claim 11 or 12, wherein said sensing means includes a plurality of circumferentially spaced, longitudinally elongate, conductive, capacitance discharge members carried at or adjacent to said outer periphery.

12. A rotation-sensing device for providing output signals that correspond to rotary hand movement made about said device by an operator, said device comprising:

a cover member including an outer surface having a generally cylindrical, longitudinally elongate, non-rotatable protrusion projecting outwardly from said outer surface and having an outer periphery;

a plurality of generally longitudinally elongate circumferentially spaced sensing means positioned adjacent said outer periphery and responsive to said rotary hand movement of the operator for providing output signals corresponding to said movement; and

means for determining from said signals the direction and angular amount of said movement.

14. A device according to claim 12, wherein said outer periphery of said protrusion is integrally formed with said outer surface of said cover member.

16. A device according to claim 12, further comprising a housing for mounting said cover member and means for sealing said cover member with respect to said housing.