JPS647603A - Rotary operation type variable resistor - Google Patents

Rotary operation type variable resistor

Info

Publication number
JPS647603A
JPS647603A JP62162774A JP16277487A JPS647603A JP S647603 A JPS647603 A JP S647603A JP 62162774 A JP62162774 A JP 62162774A JP 16277487 A JP16277487 A JP 16277487A JP S647603 A JPS647603 A JP S647603A
Authority
JP
Japan
Prior art keywords
variable resistor
rivet
protrusion
knob
substrate
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.)
Pending
Application number
JP62162774A
Other languages
Japanese (ja)
Inventor
Fumio Fujii
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62162774A priority Critical patent/JPS647603A/en
Publication of JPS647603A publication Critical patent/JPS647603A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C19/00—Acyclic saturated compounds containing halogen atoms
    • C07C19/08—Acyclic saturated compounds containing halogen atoms containing fluorine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/20—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
    • C07C17/202—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction
    • C07C17/206—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction the other compound being HX
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/20—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
    • C07C17/21—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms with simultaneous increase of the number of halogen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Adjustable Resistors (AREA)

Abstract

PURPOSE:To eliminate a variation in a resistance value of a rotary operation type variable resistor due to an impact, a vibration, etc., and to obtain a high rotary torque by providing a protrusion in contact with the collar of a stepped rivet at an operation knob. CONSTITUTION:A resistance substrate 21 on which a resistance printed layer 22 is disposed on its one side surface, an elastic contact body 30 made of a thin elastic metal plate and having end contacts 31, 32 at positions corresponding to the layer 22 on the substrate 21, and an operation knob 34 which is rotatable at a stepped rivet 38, on which the body 30 is disposed on its one side surface and having a protrusion 40 in contact with the collar 39 of the rivet 38 on its other side surface are provided. For example, the knob 34, the substrate 21 and a clamping fitting 36 are superposed, the rivet 38 is penetrated from the side of the knob 34 through their central holes 35, 27 and 37, the end extending from the rear side of the fittings 36 is calked to be assembled as a variable resistor. Thus, a high rotary torque is obtained by the elasticity of the protrusion 40 to eliminate a problem of varying the resistance value due to an impact, a vibration, etc.
JP62162774A 1987-06-30 1987-06-30 Rotary operation type variable resistor Pending JPS647603A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62162774A JPS647603A (en) 1987-06-30 1987-06-30 Rotary operation type variable resistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62162774A JPS647603A (en) 1987-06-30 1987-06-30 Rotary operation type variable resistor

Publications (1)

Publication Number Publication Date
JPS647603A true JPS647603A (en) 1989-01-11

Family

ID=15760965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62162774A Pending JPS647603A (en) 1987-06-30 1987-06-30 Rotary operation type variable resistor

Country Status (1)

Country Link
JP (1) JPS647603A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0452707U (en) * 1990-09-12 1992-05-06
US5275112A (en) * 1992-09-28 1994-01-04 The United States Of America As Represented By The United States Department Of Energy Integrated null-flux suspension and multiphase propulsion system for magnetically-levitated vehicles
US5511488A (en) * 1994-04-25 1996-04-30 Powell; James R. Electromagnetic induction ground vehicle levitation guideway
US5953996A (en) * 1998-04-03 1999-09-21 Powell; James R. System and method for magnetic levitation guideway emplacement on conventional railroad line installations

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5820505B2 (en) * 1978-07-27 1983-04-23 富士通株式会社 CID signal detection device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5820505B2 (en) * 1978-07-27 1983-04-23 富士通株式会社 CID signal detection device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0452707U (en) * 1990-09-12 1992-05-06
US5275112A (en) * 1992-09-28 1994-01-04 The United States Of America As Represented By The United States Department Of Energy Integrated null-flux suspension and multiphase propulsion system for magnetically-levitated vehicles
US5511488A (en) * 1994-04-25 1996-04-30 Powell; James R. Electromagnetic induction ground vehicle levitation guideway
US5649489A (en) * 1994-04-25 1997-07-22 Powell; James R. Electromagnetic induction ground vehicle levitation guideway
US5809897A (en) * 1994-04-25 1998-09-22 Powell; James R. Electromagnetic induction ground vehicle levitation guideway
US5953996A (en) * 1998-04-03 1999-09-21 Powell; James R. System and method for magnetic levitation guideway emplacement on conventional railroad line installations
US6085663A (en) * 1998-04-03 2000-07-11 Powell; James R. System and method for magnetic levitation guideway emplacement on conventional railroad line installations

Similar Documents

Publication Publication Date Title
IE780686L (en) Thermistors
DE3173010D1 (en) Switching component with variable resistance
JPS57137926A (en) Electric signal input device
JPS647603A (en) Rotary operation type variable resistor
DE4312771C2 (en) Two-stage button
CA2077870A1 (en) Click-action membrane switch unit
JPS5838570Y2 (en) small variable resistor
DE3070065D1 (en) Switch structure with touch element
EP0307007A3 (en) Making electrical contact between metals and resistive emaking electrical contact between metals and resistive elements lements
JP3451375B2 (en) Variable resistor
FR2396396A1 (en) RESISTANCE CONSTITUTED BY A LAYER OF CARBON
DE2125068B2 (en) Key operated piezoelectric signal generator - has crystal located on flexible metal backing which permits compact design and reduces danger of crystal rupture
JPS6476742A (en) Heat conductive sheet
DE3536293A1 (en) KEY SWITCH
JPS57132033A (en) Pressure sensor
FR2398241A1 (en) Ball valve for use with flammable liquids or vapours - has springs pressing on ball to conduct static electricity to earth
KR0126437Y1 (en) Knob device for bottom switch
JPH0537377Y2 (en)
JPS5583319A (en) Surface elastic wave element
KR900005270Y1 (en) Connecting structure of remote controller's knob
KR900019218A (en) Thick film elements
JPS5926617Y2 (en) printed wiring board
JPS6330099Y2 (en)
JPS524091A (en) Conductive mixture
JPS53146340A (en) Heating element