US3283608A - Pushbutton latching and locking attachment - Google Patents

Pushbutton latching and locking attachment Download PDF

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Publication number
US3283608A
US3283608A US387346A US38734664A US3283608A US 3283608 A US3283608 A US 3283608A US 387346 A US387346 A US 387346A US 38734664 A US38734664 A US 38734664A US 3283608 A US3283608 A US 3283608A
Authority
US
United States
Prior art keywords
pushbutton
latch
latching
pin
station
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
US387346A
Other languages
English (en)
Inventor
Charles C Davis
Raymond L Erickson
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.)
Cutler Hammer Inc
Original Assignee
Cutler Hammer Inc
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
Priority to GB1054007D priority Critical patent/GB1054007A/en
Application filed by Cutler Hammer Inc filed Critical Cutler Hammer Inc
Priority to US387346A priority patent/US3283608A/en
Application granted granted Critical
Publication of US3283608A publication Critical patent/US3283608A/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
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/68—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having two operating members, one for opening and one for closing the same set of contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
    • H01H15/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
    • H01H9/282—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20636—Detents

Definitions

  • a more specific object is to provide a device of the aforementioned character which can be secured to and removed from the cover of a pushbutton station by the insertion and removal of one of the cover securing screws, and which in pushbutton down latching position and securement of the padlock thereto blocks access to such cover screw or other fastening device by normally employed tools.
  • FIGURE 1 is a front elevational view of a pushbutton control device having a lockable latching attachment secured thereto in accordance with the invention
  • FIG. 2 is like FIG. 1, but shows the latching attachment locked in pushbutton latching position
  • FIG. 3 is a fragmentary side view of a pushbutton device, showing a similar view latching attachment
  • FIG. 4 is a sectional view taken along the line 44 of FIG. 2;
  • FIG. 5 is a front view of the latching attachment, partially in section along the line 55 of FIG. 3;
  • FIG. 6 is like FIG. 5, but shows the attachment in latching position
  • FIG. 7 is a fragmentary isometric view of a pushbutton device showing the latch in an intermediate position
  • FIG. 8 is an exploded view of the parts making up the latching attachment.
  • the drawing shows a pushbutton station comprising a metallic base or frame 10 having a U-shaped wrap-around cover 12 which is preferably formed of a molded insulating material.
  • a dual momentary type switch 14 having separate actuators 14a and 14b is mounted on the inside of the base 10.
  • Pushbuttons 16 and 18 are mounted in cover 12 and are biased outwardly thereof by springs 20. Integral projections 16a and 18a of the buttons aline with the switch actuators 14a and 14b, respectively, and push the latter inwardly upon depression of the ushbuttons.
  • Cover 12 is secured to frame 10 by the screws 22 and 24 which penetrate openings in the front face of the cover and take into alined threaded openings in the integral downwardly and upwardly depending tabs 10a and 19b.
  • Screw 24 also secures to the front surface of cover 12 a locking latching attachment 26 which comprises the base 28, a latch 30 and a pivot pin 32.
  • the base 28 has a portion 28a which seats against the indented front face of cover 12 and spaced apart portions 28b and 280.
  • portion 2812 has a rectangular notch 28d and portion 280 has a padlock hasp receiving opening 28c extending through its top and bottom surfaces.
  • Alined openings 28 and 28g extend transversely through the portions 28b and 28c with the latter being of somewhat larger diameter than opening 28b. Opening 280 extends across the diameter of hasp opening 28e.
  • Latch 3! has a central portion 30:: and an integral button engaging 'arm 30b depending at an oblique angle from one end of the portion 30a, at the other end of portion 30a are spaced integrally formed lugs 3&0 and 300. having alined openings 30e and 30].
  • Pivot pin 32 extends through openings 30:: and 30 with a force fit and through openings 28 and 28g with a sliding and rotational fit.
  • the shoulder formed by the meeting of the portion 32a and portion 32b of somewhat smaller diameter seats against the outer side of the lug 30d.
  • the transverse thickness of the portions 30a and lug 30c is slightly less than the width of the notch 28d.
  • a flange 30g extends at a right angle from and along one edge of the portion 30a and merges with a surface of arm 30b and lug 360.
  • the attachment is assembled by inserting the lugs 30c and 30d of latch 30 in the notch 28d and space formed between one portion 28a and the inner side of portion 28a of base 28 with the openings 30c and 30 alined with the openings 28 and 28g.
  • Pin 32 is then inserted from right through the openings 28g and driven into the openings 30f and 30a with a force fit so that the aforementioned shoulder on pin 32 seats against the right-hand side of the lug 30d.
  • Pin 32 is straight knurled along the pairs of portion 32b that engage within the openings 30c and 309 of latch 30 to provide a non-rotational force fit of pin 32 in latch 30.
  • Portion 28a of base 28 has a screw receiving openings 2811 to accommodate the screw 24.
  • the ends of portion 28a are suitably notched so that the surface of the portion 280 will abut against the indented front surface of cover 12 when screw takes down into the threaded opening in tab 10b.
  • FIG. 1 The free or non-latching position of the attachment is illustrated in FIG. 1 wherein latch 30 is centered between portions 28b and 280 and having a bias downwardly under the force of gravity clear of pushbutton 18. If latch 30 and shaft 32 are rotated to the positions shown in FIGS. 5 and 6 and the arm 30b pressed downwardly against pushbutton 18 until the lug 30c is alined with notch 28d, latch 30 and shaft 32 can then he slid to the left in the openings 28 and 28g to the positions depicted in FIGS. 2 and 6. Latch 30 :can then be released and it will stay in such position maintaining pushbutton 18 in depressed position. If the hasp 35a of a padlock 35 is inserted through opening 28e and locked as shown in FIG.
  • latch 30 will be locked in its pushbutton down, latching position. It will be observed that with the hasp 35a interposed in opening 28c pivot pin 32 cannot be driven to the right; its shouldered abutment against lug 30d prevents it being driven to the left.
  • a member for removable attachment to a p ushbutton station or the like, a member. comprising a base portion having a surface formed to seat against the outer surface of a station through which a pushbutton projects, an opening therethrough to accommodate means to fasten said member in place on such station and second and third spaced apart portions projecting in substantial parallel alinement away from said base portion surface, said second portion having a notch opening toward said third portion, and said second and third portions having alined openings therein, .a pin longitudinally slidable and rotatable in said 'alind openings, a latch member secured on said pin and having a portion which when rotated toward a pushbutton is engageable with the outer end to depress the latter, said latch member when holding said pushbutton in depressed position being movable into engagement with said second portion of said base in said notch as a result of sliding movement of said pin to latch the depressed pushbutton.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
US387346A 1964-08-04 1964-08-04 Pushbutton latching and locking attachment Expired - Lifetime US3283608A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1054007D GB1054007A (enrdf_load_stackoverflow) 1964-08-04
US387346A US3283608A (en) 1964-08-04 1964-08-04 Pushbutton latching and locking attachment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US387346A US3283608A (en) 1964-08-04 1964-08-04 Pushbutton latching and locking attachment

Publications (1)

Publication Number Publication Date
US3283608A true US3283608A (en) 1966-11-08

Family

ID=23529487

Family Applications (1)

Application Number Title Priority Date Filing Date
US387346A Expired - Lifetime US3283608A (en) 1964-08-04 1964-08-04 Pushbutton latching and locking attachment

Country Status (2)

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US (1) US3283608A (enrdf_load_stackoverflow)
GB (1) GB1054007A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4093834A (en) * 1976-06-30 1978-06-06 S&C Electric Company Protective cover arrangement
US4191066A (en) * 1977-07-20 1980-03-04 Eaton Corporation Pushbutton locking attachment with tolerance compensating latch
US20050133348A1 (en) * 2003-12-09 2005-06-23 Schneider Electric Industries Sas Padlockable push-button
JP2007146645A (ja) * 2005-11-29 2007-06-14 Schneider Electric Industries Sas 錠止可能な回転式操作ハンドル
USD731872S1 (en) * 2014-04-02 2015-06-16 Franklin B White Padlockable collars for protectively surrounding and limiting access to portions of threaded fasteners
USD775511S1 (en) 2015-09-08 2017-01-03 Franklin B White Padlockable security collar having pivotally connected components for shielding a clampable connector assembly
US10145150B2 (en) 2015-09-08 2018-12-04 Franklin B White Padlockable security collars having hinge connected components

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625617A (en) * 1949-08-17 1953-01-13 Fed Electric Prod Co Lock-off device for electric switches
US2659780A (en) * 1952-01-04 1953-11-17 Harold C Berger Safety appliance for switches
US2673259A (en) * 1951-11-14 1954-03-23 Appleton Electric Co Locking device for push-button stations

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625617A (en) * 1949-08-17 1953-01-13 Fed Electric Prod Co Lock-off device for electric switches
US2673259A (en) * 1951-11-14 1954-03-23 Appleton Electric Co Locking device for push-button stations
US2659780A (en) * 1952-01-04 1953-11-17 Harold C Berger Safety appliance for switches

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4093834A (en) * 1976-06-30 1978-06-06 S&C Electric Company Protective cover arrangement
US4191066A (en) * 1977-07-20 1980-03-04 Eaton Corporation Pushbutton locking attachment with tolerance compensating latch
US20050133348A1 (en) * 2003-12-09 2005-06-23 Schneider Electric Industries Sas Padlockable push-button
US6972387B2 (en) * 2003-12-09 2005-12-06 Schneider Electric Industries Sas Padlockable push-button
JP2007146645A (ja) * 2005-11-29 2007-06-14 Schneider Electric Industries Sas 錠止可能な回転式操作ハンドル
USD731872S1 (en) * 2014-04-02 2015-06-16 Franklin B White Padlockable collars for protectively surrounding and limiting access to portions of threaded fasteners
USD775511S1 (en) 2015-09-08 2017-01-03 Franklin B White Padlockable security collar having pivotally connected components for shielding a clampable connector assembly
US10145150B2 (en) 2015-09-08 2018-12-04 Franklin B White Padlockable security collars having hinge connected components

Also Published As

Publication number Publication date
GB1054007A (enrdf_load_stackoverflow)

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