US3430168A - Electrical quick-break switch - Google Patents

Electrical quick-break switch Download PDF

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Publication number
US3430168A
US3430168A US575018A US3430168DA US3430168A US 3430168 A US3430168 A US 3430168A US 575018 A US575018 A US 575018A US 3430168D A US3430168D A US 3430168DA US 3430168 A US3430168 A US 3430168A
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US
United States
Prior art keywords
contact
contact member
switch
spindle
break switch
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
US575018A
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English (en)
Inventor
Hermann Ehrenberg
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.)
Individual
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Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3430168A publication Critical patent/US3430168A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Definitions

  • Another object of the present invention to provide an electrical quick-break switch, wherein a set screw projects through the U-leg members, which set screw carries a pressure spring, the ends of which engage the inner faces of the U-leg members.
  • an electrical quick-break switch is produced which is technically economical to manufacture and also preferred as to its use, which quick-break switch constitutes to the greatest extent an instantaneous quickbreak switch.
  • One single switch magnet is merely required. The latter works in the small edged end face of the U-shaped contact member. The corresponding bundles of the magnetic field towards the engaging face of the contact member provide a sufficiently high contact pressure and the desired instantaneous reversal by displacement of the contact member.
  • the adjustment of the distance between the U-leg members renders possible thereby, in the simplest manner, the instantaneous reversal timing.
  • the ribs on the outer wide faces of the leg members of the U-shaped contact member bring about favorable contact faces, particularly a favorable appreciable contact pressure.
  • the fact, that the round formations of the ribs disposed laterally from their peak form the contact points causes resulting from the magnetic pulling force, simultaneously also an increased pulling effect on the U-shaped contact member. This pulling effect assures, even considering a certain play between I the bearing bolts of the contact members and the bearing eye of the contact members, a good contact with a low transmission resistance.
  • FIGURE 1 is a cross-section of the quick-break switch showing a first embodiment thereof
  • FIG. 2 is a top plan view of the quick-break switch, its cover being removed for the purpose of a better demonstration;
  • FIG. 3 is a side elevation of the switch socket
  • FIG. 4 is a fragmentary elevation, partly in section, of a second embodiment of the operation mechanism.
  • FIG. 5 is a top plan view of the showing in FIG. 4.
  • the quick-break switch comprises a socket 1 in which are secured the contact carriers 2, 3 and 4, which are formed simultaneously as cable connecting clamps.
  • the contact 2 is formed as a bearing bolt 5. It carries a contact member 6.
  • the latter is of U-shape and is produced of a material having magnetic characteristics.
  • the peak of the U-shaped contact member 6 is formed to a bearing eye. The latter assures the necessary ready pivoting for the contact member 6 by means of an intermediate sleeve 22.
  • the U-leg member 6' and 6" are equipped at their outside disposed wide faces with contact ribs 7 and 8, respectively.
  • the latter have a semi-cylindrical cross-section and cooperate with cylindrical contact-and abutment-pins 9 and 10, respectivcely.
  • the latter are a part of the contact carriers 3 and 4.
  • Sleeves 26 are mounted on the pins 9 and 10, respectively.
  • a spindle 12 In a position opposite to the contact member 6 is disposed a spindle 12.
  • the latter is mounted in the socket 1 and in a cover 11.
  • a section of the spindle 12 emerges from the cover 11 and is formed as a handle.
  • the spindle 12 is pressed towards a shoulder 14 by means of a pressure spring 13, which shoulder 14 serves as an upper limiting abutment.
  • a magnet holder 16 is secured on the spindle 12.
  • the magnet holder 16 carries a permanent magnet 17 directed towards the narrow edged end faces 6" and 6" of the contact member 6.
  • the spindle 12 is designed, in accordance with the showing of FIG. 1, as a splined shaft.
  • the lower spindle section guides itself in a guide plate 15 retained in the socket 1 and formed complementary to the configuration of the spindle 12.
  • the spindle 12 is, thus, safe against rotation. While, in the lower range of the spindle 12, the wedges run parallel to the spindle axis, the upper Wedge sections are changed to form a turn.
  • the magnet holder 16 has likewise a guide plate 18 equipped with corresponding grooves and has likewise a configuration complementary to the spindle 12.
  • the magnet holder 16 performs a rotary movement about the spindle 12 from its original position a to the switched position b.
  • the contact member 6 is moved by attracting the corresponding end face by this magnet.
  • the contact carriers 2 and 3 are closed.
  • the pressure on the spindle 12 is released and the spring 13 is discharged, the latter pushes the spindle 12 back until it reaches the abutment 1 4.
  • the magnet holder 16 returns from the position b to the position a.
  • the contact carriers 2 and 4 are closed.
  • the contact ribs 7 and '8 disposed on the outside arranged wide faces of the U-legs 6 and 6" are set off from the direction of movement relative to the contact-and abutment-pins 9 and 10.
  • the contact ribs 7 and 8 form accordingly with the roundings 7 and 8' disposed laterally from its peak the contact points, so that during any abutment a section between the contacts is created, through which the finest melting scars are smoothed out with each contact closure.
  • the set otf contact ribs 7 and 8 cause, jointly with the magnetic force, the contact member 6 to engage rigidly the bearing pin of the contact member 6 along a line. Thus, a line contact between all contact points is obtained.
  • the contact member 6 is furthermore equipped with a set screw 19 by which the distance of the U-legs 6 and 6 of the switching member 6 can be varied.
  • the set screw 19 projects thereby through both U-members 6 and 6" of the contact member 6. It carries a pressure spring 29, the ends of which engage the inner faces of the U- le-gs 6' and 6".
  • a nut 33 of the set screw 19 is secured against rotation, due to the Z-shaped angular arrangement of the U-legs 6".
  • the switching time point can be varied. This can be of advantage, for instance, if a plurality of switches are to be set to the same time operation. Such adjustment does not interfere with the easy swinging movement of the contact member 6 on the bearing pin 5, particularly due to the intermediate position of the sleeve 22.
  • a spacer member 23 is formed on the cover 11.
  • the contact carriers 2, 3 and 4 are equipped with a threaded section for holding nuts 25.
  • a holding screw 27 anchored in the socket 1 projects through the cover 11 for the application of a holding nut 28.
  • the receiving bore for the spindle 12 can be covered by means of a cover 30, which is secured to the socket 1 by means of a screw bolt 31.
  • the cover 30 provides simultaneously the lower limit for the axial displacement of the spindle 12 and the spring bearing for the pressure spring 13.
  • Bores 34 and 35 serve the purpose of securing the quickbreak switch.
  • an operating mechanism which constitutes a second embodiment of the quickbreak switch.
  • a switching lever 20 On the spindle 12' which is equipped with grooves parallel to the longitudinal axis, there is disposed a switching lever 20 arranged at any chosen angle about the spindle axis, which switch lever 20 renders possible the operation of the switch from any selected horizontal direction.
  • the switching lever 20 is forked on the spindle side and is equipped with a clamping screw 32 which permits a radial and axial adjustment of the switching lever 20.
  • the spindle 12 supports itself in accordance with the second embodiment directly on the cover 30.
  • An electric quick break switch comprising a socket
  • a contact member made of a material which is itself magnetically attracted, and disposed adjacent an end face of said switch magnet and pivotable in the same plane as the swinging plane of said switch magnet,
  • said contact member being substantially of U-shape and including a U-peak defining a bearing eye and two leg members having end faces,
  • said switch magnet being operatively disposed adjacent said contact member, said switch magnet adapted to attract at least one of said two leg members of said contact member,
  • contact pins including clamping means, adapted to secure wires thereto, mounted in said socket, and
  • leg members of said contact member having wide faces for engagement alternately with said contact pins for opening and closing electric circuits.
  • the electrical quick break switch as set forth in claim 1, which includes means for adjusting the distance between said leg members of said contact member.
  • the electrical quick break switch as set forth in claim 1 which includes a set screw extending through said leg members, and
  • the electrical quick break switch as set forth in claim 1, which includes a contact rib having a round portion disposed laterally of its peak and arranged on each of said outside disposed wide faces of said contact member, and said round portion constituting contact points.

Landscapes

  • Push-Button Switches (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
US575018A 1965-09-14 1966-08-25 Electrical quick-break switch Expired - Lifetime US3430168A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE0030089 1965-09-14

Publications (1)

Publication Number Publication Date
US3430168A true US3430168A (en) 1969-02-25

Family

ID=7074280

Family Applications (1)

Application Number Title Priority Date Filing Date
US575018A Expired - Lifetime US3430168A (en) 1965-09-14 1966-08-25 Electrical quick-break switch

Country Status (8)

Country Link
US (1) US3430168A (enrdf_load_stackoverflow)
AT (1) AT261717B (enrdf_load_stackoverflow)
BE (1) BE685380A (enrdf_load_stackoverflow)
CH (1) CH458486A (enrdf_load_stackoverflow)
DE (1) DE1515681A1 (enrdf_load_stackoverflow)
GB (1) GB1118109A (enrdf_load_stackoverflow)
NL (1) NL6612912A (enrdf_load_stackoverflow)
SE (1) SE305482B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102760610A (zh) * 2011-04-28 2012-10-31 通用设备和制造公司 封装的接近开关组件

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2793265A (en) * 1952-02-25 1957-05-21 North Electric Co Methods of and means for effecting magnetic armature actuation
US3273091A (en) * 1965-08-19 1966-09-13 Metrodynamics Corp Hermetically-sealed manually-actuated magnetic snap switch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2793265A (en) * 1952-02-25 1957-05-21 North Electric Co Methods of and means for effecting magnetic armature actuation
US3273091A (en) * 1965-08-19 1966-09-13 Metrodynamics Corp Hermetically-sealed manually-actuated magnetic snap switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102760610A (zh) * 2011-04-28 2012-10-31 通用设备和制造公司 封装的接近开关组件
US20130021123A1 (en) * 2011-04-28 2013-01-24 General Equipment and Manufacturing Company, Inc. d/b/a TopWorx, Inc. Enclosed Proximity Switch Assembly
US8593241B2 (en) * 2011-04-28 2013-11-26 General Equipment And Manufacturing Company, Inc. Enclosed proximity switch assembly
CN102760610B (zh) * 2011-04-28 2016-08-31 通用设备和制造公司 封装的接近开关组件

Also Published As

Publication number Publication date
BE685380A (enrdf_load_stackoverflow) 1967-01-16
DE1515681A1 (de) 1969-11-20
AT261717B (de) 1968-05-10
CH458486A (de) 1968-06-30
SE305482B (enrdf_load_stackoverflow) 1968-10-28
NL6612912A (enrdf_load_stackoverflow) 1967-03-15
GB1118109A (en) 1968-06-26

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