US3643199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pull-push switch with a variable resistor
Assignee: Panasonic Holdings Corp
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Filing: 1970-08-14
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Granted: 1972-02-15
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Expires: 1990-08-14
Abstract
Abstract A pull-push switch with a variable resistor in which on one side of a cap-shaped resistor cover is installed a resistor baseplate or an insulating baseplate mounted with a resistor thereon and on the other side thereof is installed an L-shaped metal plate, a bearing mounted on said resistor baseplate supporting a rotary shaft which is movable through said bearing, one end of said rotary shaft being projected through one side of said resistor cover and through a flat portion of said metal plate adjacent to said resistor cover, a switch being installed on the underside of the other portion of said metal plate which is in turn situated under said rotary shaft, an almost channel-shaped synthetic resin switch driver unit being placed on said other portion of said metal plate, a protrusion for operating said switch being fitted into a hole cut in the trunk of said switch driver unit, a couple of U-shaped music wire springs being bridged between said end of said rotary shaft and pockets cut in the inside surfaces of the legs of said switch driver unit opposite to each other.
Inventors
- 👤 Heiroku Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:00
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/32; H01C10/36; H01C10/363; H01H; H01H3/00; H01H3/02; H01H3/0213
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
264 words
A pull-push switch with a variable resistor in which an Lshaped metal plate is installed on one side of a cap-shaped cover for said variable resistor, a resistor baseplate or an insulating baseplate mounted with a resistor thereon being attached to the other side thereof; a bearing is mounted on said resistor baseplate to support a rotary shaft in such a manner that said rotary shaft is movable through said bearing, an end of said rotary shaFt being projected through said other side of said cover for said variable resistor and through a flat portion of said metal plate attached to said other side of said cover; a switch is installed on that side of the other flat portion of said metal plate which is opposite to the side of said rotary shaft; a channel-shaped switching driver unit made of synthetic resin is placed on said other flat portion of said metal plate; a protrusion for operating said switch is fitted into a hole cut in the trunk of said switching driver unit; and a couple of U-shaped music wire springs are bridged between holding pockets formed inside of opposing legs of said switching driver unit and said end of said rotary shaft, in which an elastic hollow cover made of synthetic resin and with a semicircular section for protecting said switch is installed on said other flat portion of said metal plate to cover said switching driver unit, and positioning protrusions are formed on both sides of said other flat portion of said metal plate to prevent said protective cover from being removed.
Claim 2
Dependent Claim
264 words
A pull-push switch with a variable resistor in which an Lshaped metal plate is installed on one side of a cap-shaped cover for said variable resistor, a resistor baseplate or an insulating baseplate mounted with a resistor thereon being attached to the other side thereof; a bearing is mounted on said resistor baseplate to support a rotary shaft in such a manner that said rotary shaft is movable through said bearing, an end of said rotary shaFt being projected through said other side of said cover for said variable resistor and through a flat portion of said metal plate attached to said other side of said cover; a switch is installed on that side of the other flat portion of said metal plate which is opposite to the side of said rotary shaft; a channel-shaped switching driver unit made of synthetic resin is placed on said other flat portion of said metal plate; a protrusion for operating said switch is fitted into a hole cut in the trunk of said switching driver unit; and a couple of U-shaped music wire springs are bridged between holding pockets formed inside of opposing legs of said switching driver unit and said end of said rotary shaft, in which an elastic hollow cover made of synthetic resin and with a semicircular section for protecting said switch is installed on said other flat portion of said metal plate to cover said switching driver unit, and positioning protrusions are formed on both sides of said other flat portion of said metal plate to prevent said protective cover from being removed.
Claim 3
Dependent Claim
40 words
A pull-push switch with a variable resistor according to claim 1, in which protrusions which are provided on the inside edges next to guide grooves of said protective cover are positioned adjacent to the legs of said switching driver unit.
Claim 4
Dependent Claim
46 words
A pull-push switch with a variable resistor according to claim 1, in which a boardlike protrusion is suspended from the central ceiling of said protective cover, the lower end of said protrusion coming down near the upper surface of the trunk of said switching driver unit.
Claim 5
Dependent Claim
116 words
A pull-push switch with a variable resistor according to claim 1, in which said elastic hollow cover is installed on the edges of the other flat portion of said metal plate by means of guide grooves provided on the lower ends of said protective cover; said positioning protrusions are formed on both edges of the other flat portion of said metal plate; each entry side of said guide grooves on the protective cover is formed with a taper portion which gradually widen the distance between said guide grooves, both edges of said positioning protrusions on said metal plate are respectively provided with taper portions being closer to each other towards the end of said metal plate.
Claim 6
Dependent Claim
55 words
A pull-push switch with a variable resistor according to claim 1, in which a boardlike protrusion is formed on the inner side of said protective cover along with the central axial direction, and a couple of said wire springs are installed so as to be adjacent to each other not to interfere with each other.
Claim 7
Dependent Claim
80 words
A pull-push switch with a variable resistor according to claim 1, in which said positioning protrusions are provided on both sides of said other flat portion of said metal plate to prevent said protective cover from slipping off, the radius of a semicircular portion of said metal plate being made a little smaller than the inside radius of said protective cover so that the inside surface of said protective cover is engaged with said semicircular portion of said metal plate.
Claim 8
Dependent Claim
120 words
A pull-push switch with a variable resistor according to claim 1, in which said elastic hollow cover is installed on said other flat portion of said metal plate by means of guide grooves cut in the lower ends of said protective cover opposite to each other, said protective cover incasing said switching driver unit, and said positioning protrusions are provided on both sides of said other flat portion of said metal plate to prevent said protective cover from slipping off, a plurality of hooks being provided on the periphery of said flat portion of said metal plate or a band being provided on the entire periphery thereof, which hooks or band is engaged with the periphery of said protective cover.
Claim 9
Dependent Claim
68 words
A pull-push switch with a variable resistor according to claim 1, in which those sides of said other flat portion of said metal plate which are adjacent to said positioning protrusions are provided with a taper in such a manner that the enDs of said guide grooves of said protective cover which are farther from said resistor cover are positioned on said tapered portions of said metal plate.
Claim 10
Dependent Claim
108 words
A pull-push switch with a variable resistor according to claim 1, in which said hollow elastic cover is provided with guide grooves at the lower insides thereof, each of said grooves having a U-shaped section or a section being progressively narrower towards the bottom, both edges of said other flat portion of said metal plate being intrudingly engaged with said guide grooves, said protective cover being installed on said other portion of said metal plate in such a manner as to cover said switching driver unit, both sides of said other flat portion of said metal plate having positioning protrusions to prevent said protective cover from slipping off.
Claim 11
Dependent Claim
63 words
A pull-push switch with a variable resistor according to claim 1, in which said other flat portion of said metal plate is provided with narrow and long guide apertures into which are fitted straight narrow protrusions located on the underside of the legs of said switching driver unit in such a manner that said switching driver unit can move along said guide apertures.
References Cited (Backward Citations)
US3023388A
Cited
US3413431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |