Switch apparatus

• US 4,246,452 A
• Filed: 01/05/1979
• Issued: 01/20/1981
• Est. Priority Date: 01/05/1979
• Status: Expired due to Term

• Current Assignee: Mattel Incorporated
• Original Assignee: Mattel Incorporated
• Inventors: Chandler, David P.
• Primary Examiner(s): Scott, James R.
• Time in patent office: 746 Days
• Field of Search: 200/5 A, 200/86 R, 200/159 B, 200/292, 200/6 A, 364/705, 364/709, 364/712
• US Class Current: 200/5.00A
• CPC Class Codes: G06F 3/0213 Arrangements providing an integrated pointing device in a keyboard, e.g. trackball, mini-joystick for pointing devices integrated in a laptop computer G06F1/169; joysticks G05G9/047; constructional details of pointing devices G06F3/033
• CPC Class Codes: G06F 3/0338 with detection of limited linear or angular displacement of an operating part of the device from a neutral position, e.g. isotonic or isometric joysticks
• CPC Class Codes: H01H 1/403 Contacts forming part of a printed circuit multilayer keyboard switches H01H13/702; thumbwheel switches H01H19/001; for rotary switches with axial contact pressure H01H19/585; printed contacts per se H05K
• CPC Class Codes: H01H 13/70 having a plurality of operating members associated with different sets of contacts, e.g. keyboard keyboards specially adapted for specific applications, see the relevant subclasses or groups, e.g. B41J, G06F3/023, H04L17/00, H04M1/00; multiple switches specially adapted for electromechanical clocks or watches G04C3/005; mounting together a plurality of independent switches H02B
• CPC Class Codes: H01H 13/702 with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
• CPC Class Codes: H01H 2203/02 Interspersed fingers
• CPC Class Codes: H01H 2207/024 in top layer
• CPC Class Codes: H01H 2217/028 on planes with different or alterable inclination, e.g. convex plane
• CPC Class Codes: H01H 2221/012 Joy stick type
• CPC Class Codes: H01H 2223/04 portable; hand held
• CPC Class Codes: H01H 2229/038 Folding of flexible printed circuit
• CPC Class Codes: H01H 2231/008 Video game
• CPC Class Codes: H01H 2239/026 Internal encoding, e.g. validity bit
• CPC Class Codes: H01H 25/041 having a generally flat operating member depressible at different locations to operate different controls

Abstract

A switch apparatus having first and second surfaces with conductive pattern segments thereon in proximate spaced overlying relation, each of the patterns being generally identical and having a circular array of alternating solid and interleaved conductive portion, one pattern being movable toward the other by tilting of a disc for providing a plurality of discrete signals.

Claims

1. In a switch apparatus, the combination comprising:

a first substrate having a generally planar surfacd with a ring pattern thereon, said ring pattern including a plurality of generally identical fully conductive arcuate segments with intervening arcuate segments interposed therebetween, said intervening arcuate segments being formed from interleaved non-contacting pairs of conductors, the arc of said intervening segments being approximately one-half the arc of the fully conductive segments;

a second substrate of a flexible material having a second generally identical ring pattern thereon;

means for maintaining said second substrate in spaced proximate relation to said first substrate with said ring patterns in facing relation with one of said ring patterns offset circumferentially relative to the other by an angle generally equal to the arc of one of said intervening segments; and

means for selectively urging any portion of said second ring pattern into conductive relation with the adjacent portion of the first ring pattern for providing a signal indicative of the portion so contacted.

2. The combination according to claim 1 wherein said first and second substrates are formed on a single sheet of flexible material.

3. The combination according to claim 2 wherein each of said ring patterns includes four fully conductive arcuate segments and four intervening segments.

4. The combination according to claim 3 wherein the segments of said first and second ring patterns are electrically connected to provide sixteen different signals indicative of contact of at least one segment of said first ring pattern with at least one segment of said second ring pattern.

5. The combination according to claim 4 wherein the interleaved conductor pairs are positioned in generally parallel relation in a direction along a secant of a circle.

6. In a switch apparatus, the combination comprising:

housing means having first and second generally planar surfaces therein with trough portions formed on opposite sides of said first planar surface;

a flexible substrate of insulating material having first, second and third sections similarly configured with two adjacent sections having generally identically arranged conductive areas for defining a keyboard portion, a directional control portion and an auxiliary switch portion, said third section having apertures therein so dimensioned and so arranged that with said third section folded over the adjacent section and with the other section folded over the first section, selective contact may be made through said apertures by depression of a conductive area of one section toward the conductive area of the other section, said sections when so folded being dimensionally arranged and configured for enabling the keyboard portion to rest on said first surface and the directional control portion to rest on said second surface, the edge portions of the so-folded substrate being bent into said trough portions in abutting relation with the sidewalls thereof for providing said auxiliary switch portion;

means for retaining the so-folded substrate within said housing means with said first surface, said second surface and the sidewalls of said trough portions in abutting relation with and supporting said keyboard portion, said directional control portion and said auxiliary switch portion respectively; and

means in said housing means for enabling the selective actuation of a conductive area of one section toward the adjacent conductive area of the other section for providing a signal indicative of the portion so contacted.

7. The combination according to claim 6 wherein the enabling means of said housing means includes opening for enabling actuation of said keyboard portion, said directional control portion and said auxiliary switch portion.

8. The combination according to claim 7 wherein said directional control portion of said substrate includes first and second ring patterns in aligned facing relation and said housing means includes means for maintaining said ring patterns in spaced proximate relation.

9. The combination according to claim 8 wherein one of said openings in said housing means is an enlarged circular opening and a disc member within said circular opening tiltably supported within the housing in proximate relation to said ring patterns, said disc member being so configured and so dimensioned that tilting thereof flexes a portion of one of said ring patterns into conductive relation with an adjacent portion of the other of said ring patterns.

10. The combination according to claim 9 wherein said first and second ring patterns provide encoding means for providing a signal indicative of the portion of the ring patterns in contacting relation.

11. The combination according to claim 10 wherein said first and second ring patterns are generally identical and include a plurality of generally identical fully conductive arcuate segments with intervening arcuate segments interposed therebetween, said intervening arcuate segments being formed from interleaved non-contacting pairs of conductors, the arc of said intervening segments being approximately one-half the arc of said fully conductive segments.

12. The combination according to claim 11 wherein with the substrate folded, one of said ring patterns is offset circumferentially relative to the other by an angle generally equal to the arc of one of said intervening segments.

13. In a switch apparatus, the combination comprising:

housing means;

a first substrate supported within said housing means and having a generally planar surface with a ring pattern thereon, said ring pattern including a plurality of generally identical fully conductive arcuate segments with intervening arcuate segments interposed therebetween, said intervening arcuate segments being formed from interleaved non-contacting pairs of conductors, the arc of said intervening segments being approximately one-half the arc of the fully conductive segments;

a second substrate of a flexible material having a second generally identical ring pattern thereon;

means within said housing means for maintaining said second substrate in spaced proximate relation to said first substrate with said ring patterns in facing relation;

disc means tiltably supported relative to said housing means in proximate relation to said second substrate, said disc means being so dimensioned and so configured for flexing said second substrate in response to tilting of said disc means for urging a portion of said second ring pattern into conductive relation with the adjacent portion of said first ring pattern for providing a signal indicative of the portion so contacted.

14. The combination according to claim 13 wherein said disc means includes a disc member having a cup-shaped portion with the wall thereof defining a circle, the edge of said wall being in close proximate relation to said second substrate.

15. The combination according to claim 14 wherein said disc means further includes spring means normally maintaining the disc portion of said disc means in parallel relation to said second substrate.

16. The combination according to claim 13 wherein one of said ring patterns is offset circumferentially relative to the other by an angle generally equal to the arc of one of said intervening segments.

17. The combination according to claim 16 wherein each of said ring patterns includes four fully conductive arcuate segments and four intervening segments.

18. The combination according to claim 17 wherein the segments of said first and second ring patterns are electrically connected to provide sixteen different signals indicative of contact of at least one segment of said first ring pattern with at least one segment of said secnd ring pattern.

19. The combination according to claim 13 wherein said first and second substrates are formed on a single sheet of flexible material and said housing is provided with a generally planar surface for supporting said first substrate.

20. The combination according to claim 19 wherein said means for maintaining said second substrate in spaced relation to said first substrate includes an insulating section of said single sheet interposed between said first and second substrate, said insulating section having an enlarged circular aperture in general alignment with the outer circumference of said ring patterns.

21. The combination according to claim 20 wherein said first and second substrates further include conductive patterns arranged to form a keyboard matrix and said insulating section is provided with apertures configured and positioned for alignment between facing conductive areas for providing other signals in response to urging of said flexible substrate through at least one of said apertures for conductive relation between adjacent conductive areas.

22. In a switch apparatus, the combination comprising:

a first substrate having a generally planar surface with a ring pattern thereon, said ring pattern including a plurality of generally identical fully conductive arcuate segments with intervening arcuate segments interposed therebetween, said intervening arcuate segments being formed from interleaved non-contacting pairs of conductors, the arc of said intervening segments being approximately one-half the arc of the fully conductive segments;

a second substrate of a flexible material having a second generally identical ring pattern thereon; and

means for maintaining said second substrate in spaced proximate relation to said first substrate with said ring patterns in facing relation with one of said ring patterns offset circumferentially relative to the other by an angle generally equal to the arc of one of said intervening segments, the urging of a portion of said second ring pattern into conductive relation with the adjacent portion of the first ring pattern providing a signal indicative of the portion so contacted.

23. The combination according to claim 22 further including disc means in proximate relation to said second ring pattern for urging it into conductive relation with said first ring pattern.