US2849561A - Alternate make and break relay - Google Patents

Alternate make and break relay Download PDF

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Publication number
US2849561A
US2849561A US523474A US52347455A US2849561A US 2849561 A US2849561 A US 2849561A US 523474 A US523474 A US 523474A US 52347455 A US52347455 A US 52347455A US 2849561 A US2849561 A US 2849561A
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US
United States
Prior art keywords
interlock
relay
contact
interlock member
stationary
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
US523474A
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English (en)
Inventor
Fischer Josef
Kubick Heinz
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.)
Siemens and Halske AG
Siemens Corp
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Siemens Corp
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Filing date
Publication date
Application filed by Siemens Corp filed Critical Siemens Corp
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Publication of US2849561A publication Critical patent/US2849561A/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/08—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/56—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force

Definitions

  • This invention relates to an interlocking switch actuating device and is particularly concerned with an electromagnetica'lly or manually operable device comprising a movable drive member and an interlocking or latching member actuated thereby for controlling the operation of switching means, for example, the make and break operation of contacts of a relay.
  • the device according to the invention may be as a unit removably mounted on a relay so as to adapt the relay for impulsing action, that is to say, for contact actuation responsive to impulses, causing momentary excitation of the relay coil.
  • the contact position which is efiected responsive to any given impulse for example, closed contact position, is maintained by the action of the interlocking 'or latching "member until the arrival of another impulse which releases the interlocking member to restore the contacts into alternate position, for example, open contact position.
  • the corresponding relay may be operated in usual manner as a relay requiring for the contact operation to be efiected prolonged excitation, in other words, as a relay that remains energized for the duration of a given contact operation.
  • relays respectively providing for prolonged and for impulse-like excitation required until now distinct and difierent structures
  • the latter type difiering from the former particularly in the "greater number of individual parts.
  • the number of relays 'of the prolonged-excitation type, required in electrical apparatus is generally greater than the number of relays of the impulsing interlockin'gtype, and the relatively complex structure of the latter relays, therefore, introduces aspects which affect the economy of manufacture and therewith the costs of the relay units.
  • the invention makes it possible to construct a standard type relay differing only slightly from the usual prongedexcitation type and to use such relay in customary manner as a prolonged-excitation relay or, by removably mounting thereon the new switch or contact actuating device, as a relay of the impulsing type.
  • the device according to the invention when used, for example, in connection with a relay, comprises a unidirectionally movable drive member acting in the manner of a plunger.
  • a unidirectionally movable drive member acting in the manner of a plunger.
  • Such member is operable by the armature of the relay incident to its attraction as well as incident to the release thereof and effects operation of a rockably disposed latch or interlock control member adapted to interlock 'in predetermined manner with a stationary structural part.
  • the operation of the interlocking member eifects the actuation of the contact springs of the relay.
  • a'plungeratent like manually operable element takes the place of the drive member to control the actuation of the rockable interlocking member so as to actuate switching means such as contact springs.
  • Fig. 1 shows in perspective View an embodiment of the invention as applied to a relay
  • Figs. la to 1d indicate various positions of the cooperating and interlocking parts, shown partially in section, as seen from one end of the interlocking member;
  • Figs. la to 1d are side views of the positions of the parts corresponding to the end views shown in Figs. 1a to 1d, some parts being shown in section;
  • Figs. 2a and 2a illustrate, in part sectiona'lly, different positions of parts of an embodiment controlled by a pushbutton actuated plunger-like drive member;
  • Figs. 2b to 2e are views similarly to Figs la to 1d, showing various positions of parts employed in an embodiment controlled by a relay armature but utilizing an arrangement similar to the one used in the embodiment shown in Figs. 2 and 2a; and
  • Figs. 2b to 2e are part sectional side views of the positions of parts corresponding to those shown in Figs. 2b to 2e.
  • characters Sp, A, K, J, z, F and k indicate generally known parts of a relay.
  • Sp indicates the coil; A the armature; K the-core; '.T the magnet yoke; -z insulating members included in the contact spring pile; and F are contact springs carrying contact points k.
  • Only two contact springs forming a simple make contact have been shown for convenience; more contact springs forming different contact combinations may, of course, be provided.
  • the parts referred to are more or lessstandard and used in well known relays of the prolonged excitation type. Points unnecessary for an understanding of the invention have been omitted.
  • the upper leg of the yoke I is bent to form along its forward portion a depression, but a straight yoke may be provided.
  • the contact actuating or control device may be mounted on the-yoke J withits operating 'parts extending between the upper leg of the armature A and the lowermost spring of the contact spring pile.
  • the relay equipped with the new interlocking contact-actuating device will then be adapted to operate the contacts responsive to momentary impulse excitation of the coil Sp.
  • the new device is a simple :unit comprising merely a base .or mounting member I carrying a generally U-shaped rockably disposed interlock member 3, and having a drive member 2.
  • the base or mounting member 1 has a cutout formed .in the top wall thereof which forms a rearwardly directed car 10 and a forwardly projecting extension 1b for interlocking cooperation with the rockably disposed interlock or latch member 3.
  • the base 1 is also provided with downwardly depending arms each having a slot 1a formed therein to guide the drive member 2 made in the form of a slide and having a rearwardly extending ear 2a.
  • the drive member 2 is provided with a cutout into which extends an ear projecting rearwardly from the armature A. Accordingly, attraction of the armature A will displace the slide 2 upwardly and restoration thereof will move it downwardly again into its normal position.
  • a cutout 30 for accommodating the extension 1b projecting forwardly from the base 1, and the rearwardly facing arm has a cutout 3d formed therein for cooperation with the car extending rearwardly within the cutout formed in the top wall of the base 1.
  • Slightly curved finger-like extensions 3a and 3b project downwardly and rearwardly from the rearwardly facing arm of the rockable interlock member 3.
  • the extension 3a is shorter than the extension 3b.
  • a spring 4 is provided with one end anchored in the top wall of the rockable interlock member 3 and with its other end anchored on a part of the stationary base or mounting member 1.
  • the spring will accordingly tend to hold the interlock or latch member 3 in a normal position as indicated in Figs. 1a and 1a. is in such position in back of the top of the rearwardly facing wall of the U-shaped interlock member 3 above the cutout 3d formed therein.
  • the top edge of this cutout 3d extends at an angle as indicated in Figs. 1a to la.
  • the forwardly projecting extension 1b of the base 1 projects in this position to the left of the cutout 3c formed in the forwardly facing arm of the interlock member.
  • a nipple P is provided which may extend downwardly from the lowermost contact spring F as shown; if desired, the nipple may be provided on the top wall of the interlock member 3.
  • the new unit described above is assembled with the relay, as shown in Fig. l, by mounting the base 1 on spacer members s and securing the contact spring pile on top of the base 1 by means of screws st.
  • the armature A is attracted momentarily responsive to excitation of the coil Sp by a current impulse and moves the drive slide with its ear 2a upwardly.
  • the ear 2a being normally positioned underneath the finger 3a of the interlock member (Figs. la and 1a) lifts such member, rotating it counterclockwise into the position shown in Figs. lb and 1b, thereby lifting the nipple P and actuating the relay contacts.
  • the cutout 3d in the rear arm or wall of the interlock member 3 is in such position (Figs. lb and 1b) accessible to the rearwardly facing ear 1c of the stationary base 1.
  • the spring 4 exerts a downward and forward pull on the top wall of the interlock member 3 and before the armature A is restored to normal, the interlock member 3 slides forward, the cutout 3d admitting the stationary ear 1c, the force of the spring tilting the interlock member with the top surface of the car 10 into alignment with the slanting top edge of the cutout 3d.
  • the parts are now in the interlock position illustrated in Figs. 1c and'lc.
  • the armature A has restored to normal and the ear 2a of the drive member 2 is now disposed with one side thereof underneath the finger 3b extending from the rear wall of the interlock member 3.
  • the armature A moves to normal position upon deenergization of the coil Sp, thereby moving the drive member or slide 2 with its ear or extension 2a to normal position and thus restoring the parts to initial position in which they are shown in Figs. la and la.
  • the U-shaped interlock or latching member 3 is in response to the contact-actuating impulse-as distinguished from the subsequent contact-restoring impulse rotated counterclockwise as seen in longitudinal direction, and at the same time, is viewed transversely, tilted angularly (Figs. 1c and 10) for interlocking cooperation with the ear 1c of the stationary base 1.
  • the corresponding arrangement and cooperation of parts, resulting in the described composite displacement of the interlock member 3, is particularly useful in connection with relays leaving little space between the yoke and the contact spring pile, that is, for example, relays whose armatures operate with very short strokes.
  • the generally U-shaped interlock member 3 which corresponds to the identically referenced interlock member of the first described example, executes only a pivotal or rotary motion, as seen in longitudinal direction, but is not tilted angularly as seen in transverse direction.
  • the device shown in Figs 2 and 2a comprises a mounting plate 5 and a pushbutton 6 having a shaft 6a constituting the drive member of the structure.
  • the shaft 6a is provided with two helical compression springs 6b and 6c, and slidable on the shaft is an insulating member p which corresponds to the nipple P of the first described embodiment, serving for the actuation of contacts indicated at f and f
  • a bracket 1 is provided which has functions similar to the base member 1 of Figs 1 to 1d.
  • Numeral 3 indicates the generally U-shaped interlock or latch member corresponding to the identically referenced part of the first described structure.
  • the rearwardly facing wall or arm of the interlock member 3, as in the first embodiment, is provided with a recess or cutout 3d (see also Figs. 2b to 2e) for admitting an extension or ear 1c projecting from the bracket (base) 1 for interlocking cooperation therewith.
  • a spring 4 having one end anchored to the interlock member and its other end fastened to a stationary part. The spring accordingly attempts to hold the interlock member 3 in the normal position as shown in Fig. 2.
  • the U-shaped interlock member shown in Figs. 2 and 2a at 3 may also be used in conjunction with a relay having a longer stroke than has been assumed in connection with the first described embodiment.
  • Such use is illustrated in Figs. 2b to 2e.
  • the interlock member 3 shown in these figures corresponds to the similarly marked member in Figs. 2 and 2a (also similarly marked in Figs. 1 to 1d).
  • the difference between Figs. 2 and 2a and Figs. 2b to 2e resides in the respective use and operation of the interlock member 3.
  • the interlock member 3 is moved by the extension 6e of the drive member (pushbutton 6) and in Figs.
  • an extension 6e (constituting part of the drive member) will engage the downwardly depending :arm of the U-shaped interlock member 3 in similar manner as the arm 2a of the drive member 2 engaged the downwardly depending finger 3a of the first described structure, thereby tilting the interlock member counterclockwise, thus lifting it and therewith the insulating member p (nipple) to actuate the contacts '(Fig. 2a).
  • the upward displacement of the right hand arm or wall of the interlock member disposes the opening or cutout 3d opposite the ear 1c. The parts are now in the position shown in Figs. 2c and 20'.
  • the spring now pulls the interlock member 3 to the left, admitting the stationary ear into the opening or cutout 3d formed in the downwardly depending right hand arm or wall of the interlock member, for interlocking coaction therewith.
  • the spring 4 holds the interlock member in this position, latched to the stationary car In, as illustrated in Figs. 2d and 2d.
  • the operation in case of Figs. 2b to 22' is similar except that the interlock member is actuated by the slide 2 as in the first described embodiment.
  • the spring 4 maintains this interlocking position of the parts after release of the pushbutton (Figs. 2 and 2a) and after release of thearmature A (Figs. 2b to 2e), respectively, until the corresponding drive member (6a in Figs.
  • the spring 60 Upon reoperation of the pushbutton 6, the spring 60 will be compressed further, the bead 6d sliding into a recess formed in the nipple member 2.
  • the drive member 6e engages the downwardly depending right hand arm of the interlock member 3 on the inside of the rear- Wardly flaring end thereof, moving upwardly along such arm and thereby displacing the interlock member 3 to the right.
  • the interlock between the parts is thereby released, the cutout 3d moving toward the right, away from the stationary cooperating member 10.
  • the spring 6d compressed upon contact-closing actuation of the nipple p, exerts its force upon the nipple, moving it to normal position and thus restoring the contacts 1 and 15.
  • the spring 60 at the same time causes the pushbutton 6 with its shaft 6a to restore to the initial position shown in Fig. 2.
  • each embodiment a generally U-shaped interlock or control member 3, which is actuated by unidirectionally movable drive member respectively shown at 2-211 and 6-62, the drive member being controlled by the armature A of a relay (Figs. l-ld and Figs. 2b to 2e) or by a manually operable element (pushbutton 6 in Figs.
  • a-dev'ice for alternately placing saidcontact means into-actuated and thereafter into released position
  • said "device comprising a relatively stationary member, an interlock member movably mounted-on'saidstationary member forinterlocking coaction therewith, spring means for holding said interlock member in predetermined normal angular non-interlocked position relative to said stationary member, a drive member and means for successively momentarily displacing it, said drive member being upon first displacement thereof eifective to engage a portion of said interlock member for moving such member to actuate said contact means, said spring means being thereupon effective to move said interlock member into interlocking engagement with said stationary member so as to maintain said contact means actuated, whereby said portion of said interlock member is displaced in its position with respect to said drive member, said drive member being upon second displacement effective to actuate said portion of said interlock member for the purpose of moving such member to release the interlocking engagement thereof with said stationary member, said spring thereupon
  • a device for alternately placing said contact means into actuated and thereafter into released position comprising a relatively stationary member, an interlock member movably mounted on said stationary member for interlocking coaction therewith, spring means for holding said interlock member in predetermined normal angular non-interlocked position relative to said stationary member, a drive member and means for successively momentarily displacing it, said drive member being upon first displacement thereof effective to engage a portion of said interlock member for moving such member to actuate said contact means, said spring means being thereupon effective to move said interlock member into interlocking engagement wtih said stationary member so as to maintain said contact means actuated, whereby said portion of said interlock member is displaced in its position with respect to said drive member, said drive member being upon second displacement effective to actuate said portion of said interlock member for the purpose of moving such member to release the interlocking engagement thereof with said stationary member, and said spring thereupon restoring said interlock member to normal
  • said stationary member is a flat memher, said recess having an edge which extends in normal position of the parts at an angle to the plane of said stationary member, said spring being upon first displacement of said interlock member by "said drive member effective to move said arm with respect to said stationary member which enters said recess for interlocking cooperation therewith, the angularly extending edge of said recess in engagement with said stationary member causing tilting displacement of said interlock member in a transverse plane to effect actuation of said contact means.
  • said arm of said interlock member has two ears extending therefrom, said ears constituting portions one for coacu'on with said driving member responsive to first actuation thereof and one for coaction therewith responsive to second actuation thereof.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Tumbler Switches (AREA)
  • Electromagnets (AREA)
US523474A 1954-07-28 1955-07-21 Alternate make and break relay Expired - Lifetime US2849561A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES40197A DE1008410B (de) 1954-07-28 1954-07-28 Elektromagnetisch oder von Hand betaetigter Stoesseltrieb zum abwechselnden Schliessen und OEffnen eines Schalters, z.B. des Kontaktfedersatzes eines Relais

Publications (1)

Publication Number Publication Date
US2849561A true US2849561A (en) 1958-08-26

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ID=7483571

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Application Number Title Priority Date Filing Date
US523474A Expired - Lifetime US2849561A (en) 1954-07-28 1955-07-21 Alternate make and break relay

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US (1) US2849561A (en(2012))
BE (1) BE540149A (en(2012))
CH (1) CH334439A (en(2012))
DE (1) DE1008410B (en(2012))
FR (1) FR1128238A (en(2012))
GB (1) GB788371A (en(2012))
NL (2) NL199239A (en(2012))

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2522297B2 (de) * 1975-05-20 1978-01-05 Danfoss A/S, Nordborg (Dänemark) Elektrisches relais

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US552553A (en) * 1896-01-07 Ments
FR633205A (fr) * 1926-04-14 1928-01-25 Perfectionnements apportés à la construction des contacteurs interrupteurs, télérupteurs et appareils analogues
US1966285A (en) * 1930-04-26 1934-07-10 Clark Controller Co Electric switch and special application thereof
CH251236A (de) * 1946-09-09 1947-10-15 Landis & Gyr Ag Kontaktvorrichtung.
US2531838A (en) * 1947-08-08 1950-11-28 Arnold H Bergemann Latching relay
US2534797A (en) * 1949-10-14 1950-12-19 James A Rugh Switch holding and release mechanism
US2579135A (en) * 1948-07-31 1951-12-18 John A Alexander Electrical switch
US2617906A (en) * 1948-06-02 1952-11-11 Automatic Elect Lab Electromagnetic relay operable upon alternate deenergization cycles

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US552553A (en) * 1896-01-07 Ments
FR633205A (fr) * 1926-04-14 1928-01-25 Perfectionnements apportés à la construction des contacteurs interrupteurs, télérupteurs et appareils analogues
US1966285A (en) * 1930-04-26 1934-07-10 Clark Controller Co Electric switch and special application thereof
CH251236A (de) * 1946-09-09 1947-10-15 Landis & Gyr Ag Kontaktvorrichtung.
US2531838A (en) * 1947-08-08 1950-11-28 Arnold H Bergemann Latching relay
US2617906A (en) * 1948-06-02 1952-11-11 Automatic Elect Lab Electromagnetic relay operable upon alternate deenergization cycles
US2579135A (en) * 1948-07-31 1951-12-18 John A Alexander Electrical switch
US2534797A (en) * 1949-10-14 1950-12-19 James A Rugh Switch holding and release mechanism

Also Published As

Publication number Publication date
CH334439A (de) 1958-11-30
DE1008410B (de) 1957-05-16
NL199239A (en(2012))
GB788371A (en) 1958-01-02
BE540149A (en(2012))
NL103786C (en(2012))
FR1128238A (fr) 1957-01-03

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