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US3258558A - Push button switch - Google Patents

Push button switch Download PDF

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Publication number
US3258558A
US3258558A US436450A US43645065A US3258558A US 3258558 A US3258558 A US 3258558A US 436450 A US436450 A US 436450A US 43645065 A US43645065 A US 43645065A US 3258558 A US3258558 A US 3258558A
Authority
US
United States
Prior art keywords
switch
push button
armature
button switch
spring
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
US436450A
Other languages
English (en)
Inventor
Klenk Wilfried
Ringhandt Horst
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of US3258558A publication Critical patent/US3258558A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1417—Mounting supporting structure in casing or on frame or rack having securing means for mounting boards, plates or wiring boards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/50—Driving mechanisms, i.e. for transmitting driving force to the contacts with indexing or locating means, e.g. indexing by ball and spring
    • H01H3/503—Driving mechanisms, i.e. for transmitting driving force to the contacts with indexing or locating means, e.g. indexing by ball and spring making use of electromagnets

Definitions

  • Push button switches known in the art that have such holding devices have limited the number of contact springs associated therewith to maintain reasonable dimensions. Where the contact springs have not been limited, then the electromagnets have not provided sufficient force to reliably maintain the push button switch in a depressed condition.
  • an object of this invention is to provide new and unique push button switches having holding magnets.
  • a more specific object of the invention is to provide push button switches having holding magnets and contact springs on both sides of the switch body.
  • a related object is to provide such switches with buttons that are amenable to simple and quick mounting.
  • buttons body are arranged transverse to the actuating direction of the button knob and above the contact set.
  • a trap-like lever serves as an armature pivotably mounted on the buttons body.
  • FIG. 1 shows the front view of such luminescent push button switch
  • FIG. 2 shows the lateral view of such a luminescent push button switch
  • FIG. 3 shows the rear side of such a luminescent push button switch
  • FIG. 4 shows a longitudinal section through the actuated button, in an enlarged scale
  • FIG. 5 shows an exploded perspective view of the most important parts of said button
  • FIG. 6 schematically shows the circuit for energizing the eleotromagnet.
  • the body of the button 1 bears a two-part contact spring set 2 and serves to guide the switch piece 3.
  • Said piece 3 bears a button knob 4 which can be removed in order to replace the lamp.
  • Two magnetic coils 5, 6 are provided on opposite sides of the buttons body, transverse to the actuating direction of the knob 4 and above the contact spring set 2 on a common core 7 which can be screwed to the body 1.
  • a T-shaped armature 8 is pivotably mounted at only one point of the body 1; a leaf-type spring 9 actuates said armature in the direction of the arrow. The spring also serves to guide the armature 8.
  • the armature 8 In the non-operative position the armature 8 is supported by a stud 3' of the switching piece 3.
  • the holding circuit of the magnet is switched on through a contact of the contact spring set 2, and on the other hand, the armature 8 is pressed towards the pole surfaces 7, 7" of the core 7 with the aid of the leaf-type spring 9.
  • a flap 8' is placed with its oblique side in front of the edge of the stud 3' of the switch piece 3, keeping said piece in actuated position.
  • a resetting spring 10 causes restoring of the switching piece 3, whereby the armature 8 is pushed back.
  • the size of said button can be kept small.
  • a contact spring set can be arranged on each side of the button.
  • the favorable type of bearing with the aid of a stud screw results in the armature 8 (lever) being extremely mobile.
  • the contiguity of the armature and both pole surfaces 7, 7" resulting in a force flux without any air gaps and, hence, a maximum holding force.
  • the annular spring 11 enables the simple and quick mounting of the button.
  • the magnetic actuating circuit of FIG. 6 is operated when contact spring set 2 is actuated.
  • Contact spring set 2 can be actuated either responsive to the movement of the armature towards the core, in any well known manner or responsive to the motion of the switch piece 3 as the knob is pressed down, if studs on contact spring set 2 extend through body 1 into a position wherein the studs would be pushed out by switch piece 3 as it moved downward.
  • the magnetic circuit of FIG. 6 would be broken by contacts not shown between the ground and battery source.
  • a push button switch combination comprising a switch body, a pair of contact spring sets, each of said spring sets mounted on opposite sides of said body, push button switch piece means, stud means on said switch piece means, magnetic holding means, said magnetic holding means including coil means mounted on said body above said spring sets, tranvserse to the direction of actuation of said switch piece means energized responsive to the actuation of said switch piece means, armature means pivotably mounted on said body operated to cooperate with said stud means for holding said piece in the actuated position when said coil means is energized, and spring means for restoring said switch piece means when said coil means are de-energized.
  • said coil means comprises two coils with one of said coils mounted on each side of said switch body.
  • the pushbut'ton switch of claim 5 comprising annular C-shaped spring means elastically encompassing said body to limit the restoring motion of said switch piece.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Push-Button Switches (AREA)
US436450A 1964-03-06 1965-03-02 Push button switch Expired - Lifetime US3258558A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST021809 1964-03-06

Publications (1)

Publication Number Publication Date
US3258558A true US3258558A (en) 1966-06-28

Family

ID=7459139

Family Applications (1)

Application Number Title Priority Date Filing Date
US436450A Expired - Lifetime US3258558A (en) 1964-03-06 1965-03-02 Push button switch

Country Status (3)

Country Link
US (1) US3258558A (de)
BE (1) BE660745A (de)
NL (1) NL6502734A (de)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
BE660745A (de) 1965-09-08
NL6502734A (de) 1965-09-07

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