US3609623A - Variable resistance control having hinged based member - Google Patents

Variable resistance control having hinged based member Download PDF

Info

Publication number
US3609623A
US3609623A US887228A US3609623DA US3609623A US 3609623 A US3609623 A US 3609623A US 887228 A US887228 A US 887228A US 3609623D A US3609623D A US 3609623DA US 3609623 A US3609623 A US 3609623A
Authority
US
United States
Prior art keywords
slider
housing
side members
pair
bottom member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US887228A
Other languages
English (en)
Inventor
John Zdanys Jr
Norman C Weingart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CTS Corp
Original Assignee
CTS Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CTS Corp filed Critical CTS Corp
Application granted granted Critical
Publication of US3609623A publication Critical patent/US3609623A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/30—Adjustable resistors the contact sliding along resistive element
    • H01C10/38—Adjustable resistors the contact sliding along resistive element the contact moving along a straight path
    • H01C10/44—Adjustable resistors the contact sliding along resistive element the contact moving along a straight path the contact bridging and sliding along resistive element and parallel conducting bar or collector

Definitions

  • a pair of spaced guide means on the slider supported by resilient dielectric guide-supporting means in side members of the housing permits uniform operation of the slider.
  • the guide-supporting means provided in the side members are of the same width throughout the entire length of the housing.
  • the side members are integral with and hingeably secured to the bottom member.
  • tolerance compensators are provided on resilient guide means of the slider for substantially eliminating pitch and yaw of the slider during movement.
  • An operating member secured to the slider extends outwardly through a slot provided in the housing.
  • variable resistance controls and, more particularly, to a variable resistance slide control having a slider movable rectilinearly in the housing.
  • Variable resistance slide controls are well known in the art as exemplified by Rubinstein U.S. Pat. No. 2,242,327, Lovejoy et al. U.S. Pat. No. 3,412,316 and Barden et al. application Ser. No. 680,190 filed on Nov. 2, 1967.
  • Lovejoy et al. and Barden et al. assigned to the same assignee as the present invention, disclose how to make variable resistance slide controls having smooth and uniform slider movement, maximum buildup of tolerances of cooperating parts of such controls causes undesirable pitch and yaw of the movable sliders especially when the slider operating means extends outwardly through a slot provided in the housing of the control.
  • variable-resistance slide control Another object of the present invention is to provide a variable resistance slide control where slider movement is virtually independent of the dimensional variations resulting from manufacturing tolerances of a majority of the parts of the control.
  • An additional object of the present invention is to provide a variable resistance slide control with a slider having a pair of runners received in channels, provided in opposite sidewalls of the housing.
  • a further object of the present invention is to provide a variable resistance slide control with a resilient dielectric insert defined by a bottom member and channeled side members hingeably secured and integral with the bottom member for uniformly guiding rectilinear movement of a slider.
  • Still another object of the present invention is to provide a slide control with tolerance-compensating means.
  • the present invention is concerned with a variable resistance slide control employing a rectilinear slider carrying a contactor wipably engaging a resistance element and a conductive element supported in an elongated housing.
  • the rectilinear slider mounted in the housing has a pair of spaced guide means received in guide-supporting means provided in opposite side members of the housing.
  • the guide-supporting means in the side members are of the same width throughout the entire length of the housing to assure that the pitch of the slider will not vary during rectilinear movement of the slider from one end of the control to the other end.
  • the guide supporting means also maintain the contactor a predetermined distance from the resistance and conductive elements.
  • the side members are of resilient dielectric material and are hingeably secured to the base member to facilitate assembly of the side members in the housing.
  • the ends of the guide means are provided with tolerance compensators for eliminating pitch and yaw of the slider when the slider is moved.
  • An operating member extending from the housing is connected to the slider for moving the slider in the housing.
  • FIG. 1 is an isometric view of a variable resistance slide control made in accord with the present invention
  • FIG. 2 is an enlarged sectional view taken along line lI-Il of FIG. 1;
  • FIG. 3 is an exploded view of the control shown in FIG. 1;
  • FIG. 4 is a top plan view of a guide supporting means best shown in FIG. 3 of the drawings with the side members hingeably secured to and lying in the same plane as the base member;
  • FIG. 5 is an end view of the guide supporting means shown in FIG. 4.
  • FIG. 6 is a sectional view of another embodiment of the present invention.
  • variable resistance slide control generally indicated at 10 comprising an elongated channel-shaped housing 11 formed from a stamped single piece of metal and defined by a bottom wall 12 and a pair of sidewalls I3, 14 integral with the bottom wall and projecting upwardly therefrom.
  • the top of the housing is defined by a dielectric member 15 of suitable material and end tabs 16 extending upwardly from the sidewalls are folded laterally over the dielectric member for securing the member 15 to the housing 11.
  • a pair of elongated resistance elements 17 are disposed in the housing and secured to one side of the dielectric member 15 with terminals 18a. Two resistance elements are employed when the variable resistance control is employed in stereo equipment.
  • a single resistance element or a pair of resistance elements such as shown in the drawings can be employed with the control.
  • Further reference to a stereo or dualelement slide control is disclosed in Barden et al. U.S. Pat. application Ser. No. 680,190 filed on Nov. 2, 1967, and a singleelement slide control is shown in Lovejoy et al. U.S. Pat. No. 3,412,361.
  • a pair of conductive elements 19 (see FIGS. 2 and 3) corresponding to the resistance elements 17 are fixedly secured with terminals 18b to an insulated bottom member 20 disposed along the bottom wall 12 of the housing.
  • a pair of tabs 12a projecting inwardly from the bottom wall 12 of the housing 11 and received in openings 20a provided in the bottom member 20 locate the bottom member in the housing.
  • a pair of side members 21, 22 are hingedly secured to and integral with the bottom member 20.
  • the side members are provided with guide-supporting means, e.g., longitudinal channels 23, 24, in spaced parallel relationship to the bottom member 20.
  • guide-supporting means e.g., longitudinal channels 23, 24, in spaced parallel relationship to the bottom member 20.
  • Slidably supported by the guide-supporting means are a pair of guide means, e.g., runners 25, 26 integral with a slider 27 for guiding rectilinear movement of the slider in the housing.
  • An operat ing member 270 integral with the slider 27 extends outwardly through a slot provided in the housing, e.g., in the dielectric member 15.
  • the resistance elements 17 are disposed on opposite sides of a plane passing through the slot and the center of the bottom member 20 dividing the housing into two equal sections.
  • Bearing surfaces on the guide means and on the guide-supporting means permit smooth operation of the slider in the housing.
  • pitch denotes a rocking motion or alternate rising and falling of the front and rear of the slider as the slider is moved back and forth in the housing while yaw" denotes a turning from a desired line of movement about the normal, or vertical axis of the slider.
  • the side members are connected to the base member with hinges 28 defined by grooves such as V-shaped slots and the walls of each slot are at 90 to each other when molded to assure that a substantially square corner will be formed when the side members are folded upwardly of the base member and assembled in the housing.
  • the molded insert i.e., the bottom member and the integral side members are preferably molded from a resilient dielectric material such as hard rubber, nylon, or polychlorotrifluoroethylene.
  • the material below the V-shaped slots joins the side members to the bottom members and being elastic or resilient hingeably secures the members together.
  • the slider is molded of the same or similar dielectric material as the insert.
  • the end portions 250, 26a of the runners 25, 26 extend beyond the body of the slider and tolerance compensators 29 and 30 (see FIG. 3) are provided on the end portions.
  • the tolerance compensators 29 and 30 extend respectively'outwardly and downwardly from the end portions of the runners a distance equal to the tolerances desired to be overcome. For example if dimension D (see FIG.
  • the outwardly extending tolerance compensators 29 are designed to take up the additional space and prevent yaw of the slider and, if dimension D is at a minimum, the end portions of the runners flex slightly inwardly to compensate for the decrease in dimension D and assure proper rectilinear movement of the slider without yaw. If by design the outwardly extending tolerance compensators 29 have a dimension greater than dimension D, then the ends of the runners are always biased inwardly toward each other regardless of the variation in dimension D in width resulting from manufacturing the control parts within tolerance.
  • the downwardly extending tolerance compensators 30 limit pitch of the slider.
  • FIG. 6 of the drawings The cross section of the embodiment shown in FIG. 6 of the drawings is similar to the control shown in FIGS. 1 to of the drawings, the main difference being that the dielectric member has been eliminated.
  • Resistance elements 117 and conductive elements 119 are secured to the same bottom member 12% instead of to a pair of oppositely disposed dielectric members.
  • a channel-shaped housing llll closes the top of the channeled insert and sidewalls 113, 114 of the housing extending along the outside of the side members 121 of the insert.
  • Tabs 116 integral with the sidewalls 113, 114 of the housing are folded over the bottom surface of the bottom member 120 for securing the insert to the housing.
  • Guide means 125, 126 on the slider 127 shown in FIG. 6 are identical to the slider shown in FIGS. 1 to 5 and cooperate with the guide-supporting means 1123, 124 in the same manner.
  • a variable resistance slide control comprising a housing having a top member and a bottom member spaced from the top member, an elongated resistance element and a conductive element disposed in the housing between said members, terminal means connected to the elements, a pair of spaced dielectric side members hingedly secured to one of said top and bottom members and disposed between the top and bottom members, the resistance and conductive elements being disposed between the side members, each of the side members being provided with a channel, a slider having a pair of spaced runners received in the channels, said runners supporting the slider a predetermined distance from the resistance and conductive elements, contactor means carried by the slider wipably engaging the elements, and operating means connected to the slider and extending outwardly of the housing.
  • variable resistance control of claim 1 wherein one of said members is provided with an opening, the operating means extends outwardly of the housing through said opening, the bottom member is of electrically nonconductive material, and a pair of hinges having a thickness less than the thickness of the bottom member and integral therewith connect the side members to the bottom member.
  • a variable resistance control comprising an elongated housing having top and bottom walls and a pair of sidewalls, one of said walls being provided with an elongated slot, a pair of conductive elements disposed in the housing, a pair of resistance elements disposed in the housing on opposite sides of a plane passing through the slot and dividing the housing into two sections, terminals connected to the ends of the conductive and resistance elements, an electrically nonconductive insert fixedly secured to the housing comprising a resilient bottom member adjacent to the bottom wall and a pair of resilient side members hingeably secured to the bottom member and adjacent to the sidewalls, each of the side members being provided with first guide means having bearing surfaces parallel to the bottom member, a slider disposed in the housing, a pair of second guide means integral with the slider and having bearing surfaces engaging the first guide means for supporting the slider in the housing, contactor means carried by the slider and wipably engaging the elements, operating means connected to the slider and passing through the slot for uniformly moving the slider.
  • hinge means is integral with each of the side members and hingedly connects the side members to the bottom member, each of the hinge means being defined by an elongated groove in spaced parallel relationship to the first guide means.
  • a variable resistance slide control comprising a housing having a top member and a bottom member spaced from the top member, and elongated resistance element and a conductive element disposed between said members, terminal means connected to the elements, a contactor wipably engaging the elements intermediate the ends thereof, dielectric slider means constrained to move with the contactor means, dielectric slider-supporting means disposed between the top and bottom members, the slider-supporting means comprise a pair of resilient dielectric side members integral with and hingedly secured to the bottom member, one of said means being provided with a channel, and channel receiving means connected to the other means for uniformly guiding the slider means.
  • each of the side members is provided with a channel and the channel receiving means comprises a pair of runners on opposite sides of the slider.
  • variable resistance control of claim 5 wherein tolerance compensators are carried by the slider means for stabilizing movement of the slider during rectilinear movement thereof.
  • variable resistance control of claim 5 wherein the channels are formed in the slider-supporting means, the channel receiving means are connected to opposite sides of the slider means and tolerance compensators are provided on the ends of the channel receiving means for stabilizing movement of the slider during rectilinear movement thereof.
  • a variable resistance slide control the combination of a slider, a support member of dielectric material supporting and guiding the slider, means for moving the slider relative to the member, said support member comprising a resilient bottom member, a pair of resilient side members, means hingedly connecting each of the side members to the bottom member, guide means extending along each of the side members, said side members extending normal to the bottom member, resistance and conductive elements supported by the support member, and contactor means constrained to move with the slider and wipably engaging the elements.
  • each of the second mentioned means is defined by a groove, the material below each of the grooves connecting the side members to the bottom member.
  • each of the second mentioned means is defined by a V-shaped groove, the material below each of the V-shaped grooves connecting the side members to the bottom member.
  • each of the guide means comprises a channel, and a pair of runners connected to the slider are receivable in the channel.
  • a variable resistance slide control comprising a housing having a top member and a bottom member spaced from the top member, one of said members being provided with an opening, an elongated resistance element and'a conductive element disposed in the housing between said members, terminal means connected to the elements, a pair of spaced dielectric side members disposed between the top and bottom members, the resistance and conductive elements being.
  • each of the side members being provided with a channel, a slider having a pair of spaced runners received in the channels, said runners supporting the slider a predetermined distance from the resistance and conductive elements, contactor means carried by the slider wipably engaging the elements, tolerance compensators integral with the runners for stabilizing movement of the slider during rectilinear movement of the slider in the housing, and operating means connected to the slider and extending outwardly of the housing through said opening.
  • variable resistance control of claim 13 wherein the runners extend longitudinally beyond the body of the slider and the tolerance compensators extend outwardly and downwardly from the end portions of the runners.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Adjustable Resistors (AREA)
US887228A 1969-12-22 1969-12-22 Variable resistance control having hinged based member Expired - Lifetime US3609623A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88722869A 1969-12-22 1969-12-22

Publications (1)

Publication Number Publication Date
US3609623A true US3609623A (en) 1971-09-28

Family

ID=25390717

Family Applications (1)

Application Number Title Priority Date Filing Date
US887228A Expired - Lifetime US3609623A (en) 1969-12-22 1969-12-22 Variable resistance control having hinged based member

Country Status (6)

Country Link
US (1) US3609623A (enrdf_load_stackoverflow)
JP (1) JPS4945107B1 (enrdf_load_stackoverflow)
CA (1) CA918768A (enrdf_load_stackoverflow)
DE (1) DE2061723C3 (enrdf_load_stackoverflow)
FR (1) FR2074107A5 (enrdf_load_stackoverflow)
GB (1) GB1340864A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4223177A (en) * 1977-08-11 1980-09-16 Murata Manufacturing Co., Ltd. Structure and method for sealing electronic parts
US4369424A (en) * 1980-07-18 1983-01-18 Alps Electric Co. Ltd. Slide rheostat
US4665376A (en) * 1985-10-31 1987-05-12 Caterpillar Inc. Vibration resistant linear potentiometer
US5345215A (en) * 1992-02-03 1994-09-06 Alps Electric Co., Ltd. Variable resistor device with reduced slider vibration
US20160125984A1 (en) * 2014-10-31 2016-05-05 Yu-Chen Chuang Slide-type variable resistor
US20160217891A1 (en) * 2015-01-22 2016-07-28 Taiwan Alpha Electronic Co., Ltd. Variable resistor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2214946B1 (enrdf_load_stackoverflow) * 1973-01-19 1977-09-02 Lutron Electronics Co
JPS6038252Y2 (ja) * 1978-06-09 1985-11-15 アルプス電気株式会社 ハイワツテージ用スライド形２連可変抵抗器

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4223177A (en) * 1977-08-11 1980-09-16 Murata Manufacturing Co., Ltd. Structure and method for sealing electronic parts
US4369424A (en) * 1980-07-18 1983-01-18 Alps Electric Co. Ltd. Slide rheostat
US4665376A (en) * 1985-10-31 1987-05-12 Caterpillar Inc. Vibration resistant linear potentiometer
US5345215A (en) * 1992-02-03 1994-09-06 Alps Electric Co., Ltd. Variable resistor device with reduced slider vibration
US20160125984A1 (en) * 2014-10-31 2016-05-05 Yu-Chen Chuang Slide-type variable resistor
US9466410B2 (en) * 2014-10-31 2016-10-11 Taiwan Alpha Electronic Co., Ltd. Slide-type variable resistor
US20160217891A1 (en) * 2015-01-22 2016-07-28 Taiwan Alpha Electronic Co., Ltd. Variable resistor
US9443647B2 (en) * 2015-01-22 2016-09-13 Taiwan Alpha Electronic Co., Ltd. Variable resistor

Also Published As

Publication number Publication date
JPS4945107B1 (enrdf_load_stackoverflow) 1974-12-02
DE2061723B2 (de) 1978-04-13
CA918768A (en) 1973-01-09
GB1340864A (en) 1973-12-19
FR2074107A5 (enrdf_load_stackoverflow) 1971-10-01
DE2061723C3 (de) 1978-12-14
DE2061723A1 (de) 1972-08-03

Similar Documents

Publication Publication Date Title
US3609623A (en) Variable resistance control having hinged based member
US2668218A (en) Translatory potentiometer
US2966560A (en) Slide switch
US4123741A (en) Resistance element for variable resistors
US3362004A (en) Straight potentiometer with linear motion contact
US3944760A (en) Switch assembly having slider actuator insulating plate inserted between normally closed contacts
US3550059A (en) Variable resistance control
US3415962A (en) Miniature precision snap action switch with one-piece stressed blade construction
US2242327A (en) Variable resistance
US3742421A (en) Potentiometer having a transport screw and diamond shaped contact spring
US3412361A (en) Variable resistance control
US3693129A (en) Variable resistor
US4172248A (en) Variable resistor and driving mechanism therefor
US3534195A (en) Circuit breaker with novel terminal strap
US4196328A (en) Electric switch
RU2010369C1 (ru) Переменный резистор смыслова
US3462564A (en) High precision multiposition electrical switch
US3271535A (en) Switch device with improved detent structure
US4051453A (en) Variable resistance control with low noise contactor
US3671915A (en) Sliding type variable resistor
US3399369A (en) Potentiometer having housing formed of electrically non-conductive material inculding integral hinge section and method of making the same
US3887892A (en) Variable resistance slide control
US4016377A (en) Slide switch assembly having improved fixed knife blade type contact structure
JPH01279581A (ja) 電気コネクター
US3290463A (en) Trigger-operated electric switch mechanism