USRE32546E - Apparatus for securing an electronic unit to an avionics tray - Google Patents

Apparatus for securing an electronic unit to an avionics tray Download PDF

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Publication number
USRE32546E
USRE32546E US06/750,113 US75011385A USRE32546E US RE32546 E USRE32546 E US RE32546E US 75011385 A US75011385 A US 75011385A US RE32546 E USRE32546 E US RE32546E
Authority
US
United States
Prior art keywords
sleeve
transverse pin
spindle
grip
towards
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
US06/750,113
Other languages
English (en)
Inventor
Joseph C. Roake
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.)
Hutchinson Aerospace and Industry Inc
Original Assignee
Barry Wright 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 Barry Wright Corp filed Critical Barry Wright Corp
Application granted granted Critical
Publication of USRE32546E publication Critical patent/USRE32546E/en
Assigned to BANK OF NOVA SCOTIA, THE, BAYBANK MIDDLESEX, STATE STREET BANK AND TRUST COMPANY, FIRST NATIONAL BANK OF BOSTON, THE reassignment BANK OF NOVA SCOTIA, THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BARRY WRIGHT CORPORATION
Assigned to BARRY WRIGHT CORPORATION, A CORP. OF MA. reassignment BARRY WRIGHT CORPORATION, A CORP. OF MA. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: NATIONAL BANK OF BOSTON, THE
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G12—INSTRUMENT DETAILS
    • G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G12B9/00—Housing or supporting of instruments or other apparatus
    • G12B9/08—Supports; Devices for carrying
    • G12B9/10—Instruments boards; Panels; Desks; Racks
    • 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
    • H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
    • H05K7/1411—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting box-type drawers
    • H05K7/1412—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting box-type drawers hold down mechanisms, e.g. avionic racks
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/532—Conductor
    • Y10T29/53209—Terminal or connector
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/53257—Means comprising hand-manipulatable implement
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53274—Means to disassemble electrical device
    • Y10T29/53283—Means comprising hand-manipulatable implement
    • 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
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut
    • Y10T74/18696—Reciprocating or oscillating to or from alternating rotary including screw and nut including means to selectively transmit power [e.g., clutch, etc.]

Definitions

  • This invention relates to apparatus for securing an electronic unit or the like to an avionics tray.
  • Electronic equipment for use in aircraft has been generally standardised into set sizes of electronic units. These units are supported on avionics trays which are likewise of standardised sizes.
  • Page 53 of the specification states that care should be taken in the design of the hold-down screw arrangement in order to maintain proper relationship of the horizontal force tending to move the electronic equipment into the electrical connectors and the vertical force holding the equipment down on slide rails which are associated with the avionics tray.
  • apparatus for removing and securing a plug-in electronic unit or the like from or to an avionics tray which apparatus comprises:
  • a second sleeve coaxial with, and positioned around the first sleeve and having at its end remote from the transverse pin a radial flange including a shoulder facing towards the transverse pin, and an annular recess which co-operates with the rotatable grip and the first sleeve to define an annular cavity around the first sleeve;
  • a torque limiting arrangement positioned in said annular cavity and serving to interconnect the rotating grip and the first sleeve such that rotation of the grip in the direction towards the transverse pin causes the first sleeve to move along the threaded portion of the spindle towards the transverse pin so long as the torque between grip and said first sleeve is less than a predetermined value;
  • a ring member including (a) a sleeve portion coaxial with and positioned for sliding movement on the outer surface of the second sleeve, (b) an internal surface open towards the transverse pin, and (c) a shoulder facing towards, and capable of abutting, the shoulder of the second sleeve;
  • a third sleeve coaxial with and positioned for relative sliding movement over that part of the outer surface of the second sleeve nearest to the transverse pin, the third sleeve being retained at its end nearest to the transverse pin by the first stop member and having, at that end, (a) radially inwardly facing abutment which holds the third sleeve away from the first sleeve and which defines, in cooperation with the inner surface of the third sleeve, the outer sleeve of the first sleeve, and the end of the second sleeve, a sheath-like cavity around the first sleeve, and (b) a radially outwardly extending flange, the other end of said third sleeve being in contact with the radially inward part of the taper ring;
  • (x) a resilient element located in said sheath-like cavity and arranged so as to tend to urge the second and third sleeves away from one another in the axial direction of the spindle;
  • (xii) means for urging the rotating grip towards the torque limiting arrangement.
  • the second sleeve may be disposed for sliding movement around the first sleeve or it may be fixed to the first sleeve.
  • the torque limiting arrangement preferably comprises a plurality of ball bearings held against the surface of a drive plate, which surface is formed with a number of indents corresponding to the number of ball bearings. Each of the indents can conveniently be generally "L"-shaped in section.
  • the drive plate is preferably keyed to the spindle.
  • the means for urging the rotating grip towards the torque limiting arrangement preferably comprises a pack of disc springs such as Belleville washers housed in an annular cavity formed between the outer wall portion of the rotating grip and the outer surface of the first sleeve, the disc springs being urged towards an inner face of the rotating grip through the action of an adjustable screw arrangement, e.g. in the form of an adjustment disc threadedly engaged with that end of the first sleeve remote from the transverse pin.
  • an adjustable screw arrangement e.g. in the form of an adjustment disc threadedly engaged with that end of the first sleeve remote from the transverse pin.
  • the outer surface of the rotating grip be formed of rubber and be shaped so as to facilitate manual operation thereof.
  • the outer surface of the rotating grip or at least a portion thereof be colour coded, a specific colour corresponding to the predetermined value of the torque at which the torque limiting arrangement will slip.
  • the transverse pin can be mounted in a slot which is inclined with respect to the support surface of the avionics tray, that end of the slot furthest from the rotating grip being slightly higher than the other end of the slot, when the avionics tray is in a horizontal position.
  • the spindle may be provided with a pair of parallel and spaced transverse pins which ride over corresponding surfaces of an inclined ramp.
  • FIG. 1 is a side elevational view of apparatus in accordance with the present invention.
  • FIG. 2 is a partial cross-sectional view along the lines A--A of FIG. 1;
  • FIG. 3 is a cross-sectional view similar to that of FIG. 2, but showing the apparatus in a first, operative configuration
  • FIG. 4 is similar to FIG. 2, but with the apparatus in a second, operative configuration
  • FIG. 5 is a view of an alternative form of retaining device for the apparatus of FIG. 1;
  • FIG. 6 is a sectional view, on an enlarged scale, of part of the apparatus shown in FIGS. 1 and 2.
  • the apparatus comprises a threaded spindle 1 one end of which includes a transverse pin 2 for pivotally mounting the spindle in a retaining member attached to, or forming part of, an avionics tray (not shown).
  • this pivotal mounting will be such that the spindle can move about the transverse axis of pin 2, while being unable to rotate about its own longitudinal axis.
  • a first sleeve 3 includes a first portion 4 remote from pin 2 and a second, internally threaded portion 5 which is screw-threaded onto the spindle 1.
  • the internal diameter of portion 4 of sleeve 3 is slightly greater than the external diameter of spindle 1.
  • a rotatable grip 8 is fitted about the end of first sleeve 3 remote from transverse pin 2.
  • the grip comprises a colour-coded rubber grip surface 27 secured to the periphery of a cylindrical section 29.
  • Cylindrical section 29 has, at its right-hand end as seen in FIG. 2, a recess in which are disposed a pack of disc springs (e.g. Belleville washers) 25.
  • disc springs e.g. Belleville washers
  • a second sleeve 9 is coaxial with and positioned around the first sleeve 3.
  • Sleeve 9 is preferably secured to the first sleeve 3.
  • a radial flange 10 is formed at the end of sleeve 9 remote from pin 2.
  • Flange 10 includes a shoulder 11 facing towards the pin 2 and an annular recess 12 which co-operates with the rotatable grip 8 and the first sleeve 3 to define an annular cavity around the first sleeve.
  • a torque limiting arrangement 13 is positioned in this cavity. This comprises a drive plate 26 which is keyed to sleeve 3 and a plurality of ball bearings 31. Cavity 13 also includes a spacer member 32.
  • FIG. 6 A partial sectional view along lines B--B is shown in FIG. 6.
  • the drive plate 26 is associated with four ball bearings 31 each of which is seated in an indent 33.
  • Each indent is "L"-shaped, having a relatively shallow sloping surface 34 and a relatively steep sloping surface 35. These two surfaces lie in planes which are 90 degrees apart.
  • the keying of drive plate 26 is effected through flats 36 formed in sleeve 3.
  • the torque limiting arrangement 13 is arranged such that rotation of the grip 8 in the direction causing sleeve 3 to move towards the transverse pin 2 continues so long as the torque between grip 8 and the sleeve 3 is less than a predetermined value.
  • this predetermined torque value can be set appropriately.
  • Annular ring 14 is mounted for sliding movement on the outer surface of the second sleeve 9.
  • the ring 14 includes a sleeve portion 15 coaxial with the second sleeve 9, and an internal surface 16 open towards the transverse pin 2.
  • a shoulder 23 is also provided on the ring, this shoulder facing towards, and being capable of abutting, the shoulder 11 of sleeve 9.
  • a generally cylindrical, elastomeric spacer element 22 is held captive between the radial flange 10 of second sleeve 9 and the right-facing end of the ring 14. When the ring 14 and flange 10 move towards each other, their respective shoulders 11 and 23 come into abutment so as to retain the compressed elastomeric spacer element 22 within the cavity formed between members 14 and 10.
  • a third sleeve 17 is coaxial with and positioned for relative sliding movement over that part of the outer surface of second sleeve 9 nearest to the transverse pin 2.
  • Sleeve 17 is retained at the left hand end as seen in FIG. 2 by stop member 6.
  • the third sleeve 17 has a radially inwardly facing abutment 18 which holds the third sleeve 17 away from the first sleeve 3.
  • Abutment 18 also defines, in co-operation with the inner surface of the third sleeve 17, the outer surface of the first sleeve 3 and the end of the second sleeve 9, a sheath-like cavity 21 around first sleeve 3.
  • a resilient element 20 is located in cavity 21 and is arranged so as to tend to urge the third sleeve 17 away from second sleeve 9 in the axial direction of the spindle 1.
  • Third sleeve 17 also includes a radially outwardly extending flange 19 at the end adjacent to transverse pin 2. The other end of sleeve 17 is in contact with the radially inward part of the ring 14.
  • FIGS. 1 and 2 The operation of the apparatus illustrated in FIGS. 1 and 2 will now be described with reference to FIGS. 2, 3, 4 and 5.
  • the transverse pin 2 is located in a slot 40 formed in a retaining member 41.
  • the retaining member 41 is secured to the lower part 42 of an avionics rack (not shown).
  • the avionics rack supports an electronic unit which includes a front plate 43 having attached thereto a generally L-shaped hook 44.
  • Front plate 43 includes a lower portion 45 which extends somewhat below the generally flat, bottom surface of the electronics unit which is supported on rack 42.
  • FIG. 3 the apparatus of this invention is shown in the configuration applicable to its use in extracting the electronics unit from the rack or tray on which it is supported.
  • the lower part 45 of front plate 43 and the toe of hook 44 are engaged between flanges 19 and 14 of the apparatus.
  • Rotating grip 8 is rotated in a direction such as to move first sleeve 3 towards the right-hand end of spindle 1 as shown in the drawing. Torque is transferred through the arrangement 13 to plate 26, which as shown in FIG. 6 is keyed onto sleeve 3.
  • Second sleeve 9 is fixed with respect to first sleeve 3, and third sleeve 17 is held in position between taper ring 14 and the enlarged end portion 6 of first sleeve 3, which acts as a retaining member.
  • the jaw-like flange 19 of third sleeve 17 is thus caused to exert force on the rear portion 45 of front plate 43, thus pulling the electronics unit to the right as shown in FIG. 3, thereby extracting the unit from its support tray and simultaneously effecting disconnection of the electronic connections associated with the unit.
  • the transverse pin 2 is held in slot 40 in the position illustrated in FIG. 3.
  • the slot 40 is generally similar in function to that described and illustrated in U.S. Pat. No. 3,147,005.
  • FIG. 4 When the apparatus of the invention is used to insert an electronics unit, the configuration shown in FIG. 4 is adopted.
  • Rotating grip 8 is turned in the direction causing sleeve 3 to move to the left as shown in the drawing, the overall effect being that the inward facing surface 16 of taper ring 14 pushes against the toe of hook 44, thus moving the electronics unit to the left and effecting the necessary electrical connections.
  • rotation of grip 8 initially brings the toe of hook 44 into engagement with the surface 16 of ring 14.
  • shoulders 11 and 23 are brought together against the force of the elastomeric coupling element 22.
  • shoulders 11 and 23 meet to give the arrangement shown in FIG. 4, where elements 22 is trapped in the cavity defined by co-operating surfaces of taper ring 14 and flange cam. Further rotation of the grip 8 acts to move the electronics unit to the left, as indicated above.
  • the torque limiting arrangement 13 is effective during the insertion mode. By adjusting the disc springs 25 via threaded disc 24, the limiting torque can be varied according to that desired for any particular application. When the electronics unit is fully seated on the avionics tray and the electronic connections have been effected, further rotation of rotating grip 8 will have no effect other than to cause the torque limiting arrangement 13 to slip.
  • the torque limiting arrangement 13 is effective only in the insertion mode: in other words, the arrangement 13 acts as a direct drive when rotating grip 8 is rotated in the sense required to extract the electronics unit from the rack, i.e. as described above with reference to FIG. 3.
  • FIG. 5 shows an alternative mounting arrangement for apparatus of this invention.
  • the mounting means 41 includes an inclined ramp 46 the opposite surfaces of which co-operate with two transverse pins 2a and 2b respectively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Pivots And Pivotal Connections (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Casings For Electric Apparatus (AREA)
US06/750,113 1982-09-03 1985-12-03 Apparatus for securing an electronic unit to an avionics tray Expired - Lifetime USRE32546E (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8225138 1982-09-03
GB8225138 1982-09-03
GB8225126 1982-09-03
GB8225126 1982-09-03

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US06/528,903 Reissue US4506439A (en) 1983-09-01 1983-09-01 Apparatus for securing an electronic unit to an avionics tray

Publications (1)

Publication Number Publication Date
USRE32546E true USRE32546E (en) 1987-11-24

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ID=26283738

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Application Number Title Priority Date Filing Date
US06/750,113 Expired - Lifetime USRE32546E (en) 1982-09-03 1985-12-03 Apparatus for securing an electronic unit to an avionics tray

Country Status (4)

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US (1) USRE32546E (fr)
EP (1) EP0105609B1 (fr)
CA (1) CA1214855A (fr)
DE (1) DE3379294D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6654253B1 (en) 2002-07-29 2003-11-25 Honeywell International Inc. Insertion extraction device having a flexible sleeve
US20090230279A1 (en) * 2008-03-14 2009-09-17 Southco, Inc. Leverage Device and System Using Same
US20110233372A1 (en) * 2010-03-29 2011-09-29 Rodig Nicholas P Hold-down assembly
US20170181308A1 (en) * 2015-12-16 2017-06-22 Tyco Electronics Corporation Electronic unit hold down assembly

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720223A (en) * 1985-05-07 1988-01-19 Rexnord Inc. Controlled preload, self-retracting captive fastener assembly
GB8719484D0 (en) * 1987-08-18 1987-09-23 Barry Controls Connector element
GB8900663D0 (en) * 1989-01-12 1989-03-08 Barry Controls Connector element
GB2429503B (en) 2005-08-24 2008-07-23 Engineering Dynamics Screw-threaded fastening devices
CN104507291B (zh) * 2014-12-16 2018-01-02 中航光电科技股份有限公司 用于机柜的助拔式机箱托架装置
CN104507290B (zh) * 2014-12-16 2017-09-22 中航光电科技股份有限公司 定扭矩助推助拔锁紧器及机箱托架装置和机柜
CN104507292B (zh) * 2014-12-16 2018-01-02 中航光电科技股份有限公司 用于机柜的机箱托架装置
CN104619145B (zh) * 2014-12-16 2018-01-16 中航光电科技股份有限公司 用于机箱的限扭矩助推锁紧器
CN104507289B (zh) * 2014-12-16 2017-12-19 中航光电科技股份有限公司 用于机箱的助拔锁紧器
CN104507293B (zh) * 2014-12-18 2017-12-15 中航光电科技股份有限公司 用于航空电子设备机柜的机箱托架装置
CN107695921A (zh) * 2016-08-08 2018-02-16 上海辛野模具有限公司 一种紧定装置

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2634650A (en) * 1949-11-07 1953-04-14 William L Coop Thumbscrew with torque responsive overload release
US2708863A (en) * 1951-07-03 1955-05-24 American Colortype Company Stacking conveyor for books and the like
US2729134A (en) * 1953-02-02 1956-01-03 Standard Parts Co Predetermined torque release thumb screw
US2797564A (en) * 1954-08-11 1957-07-02 Joseph C Bonneau Adjustable torque tool
US2851758A (en) * 1955-01-17 1958-09-16 Bendix Aviat Corp Clamping ring
US2919602A (en) * 1958-10-02 1960-01-05 Automatic Locking Devices Inc Protective knob unit
US2984133A (en) * 1958-06-23 1961-05-16 Milford S Zimmerman Torque limiting screw driver
US3147005A (en) * 1962-07-20 1964-09-01 Western Electric Co Clamping assembly
US3191486A (en) * 1962-10-29 1965-06-29 Martin Marietta Corp Automatic torque indicating and applying devices
GB1079365A (en) * 1964-10-09 1967-08-16 Smiths Industries Ltd Improvements in or relating to trays of the kind for use in mounting cases containing electrical equipment
US3552147A (en) * 1967-11-24 1971-01-05 Eriksbergs Mek Verk Combined overload clutch and chuck
US3640141A (en) * 1969-12-19 1972-02-08 Hollingsead Pryor Enterprises Extractor holddown apparatus
DE2112587B1 (de) * 1971-12-15 1972-09-14 Stop Choc Schwingungstechnik G Verriegelungseinrichtung an einem Gestell zur Aufnahme elektronischer Geraete
GB1339102A (en) * 1971-12-15 1973-11-28 Stop Choc Schwingungstechnik Gmbh & Co Kg Fastening device
US4018091A (en) * 1973-05-14 1977-04-19 Hollingsead-Pryor Enterprises, Inc. Pivotable extractor hold down apparatus
GB1472120A (en) * 1973-05-14 1977-05-04 Hollingsead Pryor Enterprises Apparatus for securing an electronic unit to a tray utilising a pivotable holding down and extracting device
US4223934A (en) * 1978-07-24 1980-09-23 Bell Telephone Laboratories, Incorporated Tool to insert and extract printed circuit boards into and out of apparatus housing connectors
US4534234A (en) * 1981-07-28 1985-08-13 Rexnord Inc. Fastener of the hold-down type

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480248A (en) * 1967-11-02 1969-11-25 Lockheed Aircraft Corp Clamp assembly
US3872734A (en) * 1972-04-12 1975-03-25 Rockwell International Corp Hold-down/extraction apparatus
IL66290A (en) * 1981-07-28 1985-12-31 Rexnord Inc Swing fastening device particularly for securing electronic units

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2634650A (en) * 1949-11-07 1953-04-14 William L Coop Thumbscrew with torque responsive overload release
US2708863A (en) * 1951-07-03 1955-05-24 American Colortype Company Stacking conveyor for books and the like
US2729134A (en) * 1953-02-02 1956-01-03 Standard Parts Co Predetermined torque release thumb screw
US2797564A (en) * 1954-08-11 1957-07-02 Joseph C Bonneau Adjustable torque tool
US2851758A (en) * 1955-01-17 1958-09-16 Bendix Aviat Corp Clamping ring
US2984133A (en) * 1958-06-23 1961-05-16 Milford S Zimmerman Torque limiting screw driver
US2919602A (en) * 1958-10-02 1960-01-05 Automatic Locking Devices Inc Protective knob unit
US3147005A (en) * 1962-07-20 1964-09-01 Western Electric Co Clamping assembly
US3191486A (en) * 1962-10-29 1965-06-29 Martin Marietta Corp Automatic torque indicating and applying devices
GB1079365A (en) * 1964-10-09 1967-08-16 Smiths Industries Ltd Improvements in or relating to trays of the kind for use in mounting cases containing electrical equipment
US3552147A (en) * 1967-11-24 1971-01-05 Eriksbergs Mek Verk Combined overload clutch and chuck
US3640141A (en) * 1969-12-19 1972-02-08 Hollingsead Pryor Enterprises Extractor holddown apparatus
DE2112587B1 (de) * 1971-12-15 1972-09-14 Stop Choc Schwingungstechnik G Verriegelungseinrichtung an einem Gestell zur Aufnahme elektronischer Geraete
GB1339102A (en) * 1971-12-15 1973-11-28 Stop Choc Schwingungstechnik Gmbh & Co Kg Fastening device
US4018091A (en) * 1973-05-14 1977-04-19 Hollingsead-Pryor Enterprises, Inc. Pivotable extractor hold down apparatus
GB1472120A (en) * 1973-05-14 1977-05-04 Hollingsead Pryor Enterprises Apparatus for securing an electronic unit to a tray utilising a pivotable holding down and extracting device
US4223934A (en) * 1978-07-24 1980-09-23 Bell Telephone Laboratories, Incorporated Tool to insert and extract printed circuit boards into and out of apparatus housing connectors
US4534234A (en) * 1981-07-28 1985-08-13 Rexnord Inc. Fastener of the hold-down type

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6654253B1 (en) 2002-07-29 2003-11-25 Honeywell International Inc. Insertion extraction device having a flexible sleeve
US20090230279A1 (en) * 2008-03-14 2009-09-17 Southco, Inc. Leverage Device and System Using Same
US8256737B2 (en) 2008-03-14 2012-09-04 Southco, Inc. Leverage device and system using same
US20110233372A1 (en) * 2010-03-29 2011-09-29 Rodig Nicholas P Hold-down assembly
US8870149B2 (en) * 2010-03-29 2014-10-28 Carlisle Interconnect Technologies, Inc. Hold-down assembly
US9371142B2 (en) 2010-03-29 2016-06-21 Carlisle Interconnect Technologies, Inc. Hold-down assembly
US20170181308A1 (en) * 2015-12-16 2017-06-22 Tyco Electronics Corporation Electronic unit hold down assembly

Also Published As

Publication number Publication date
EP0105609A2 (fr) 1984-04-18
CA1214855A (fr) 1986-12-02
DE3379294D1 (en) 1989-04-06
EP0105609B1 (fr) 1989-03-01
EP0105609A3 (en) 1986-03-12

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