US3696492A - Tools for plugging in and unplugging subsystems carried on slideways - Google Patents

Tools for plugging in and unplugging subsystems carried on slideways Download PDF

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Publication number
US3696492A
US3696492A US122389A US3696492DA US3696492A US 3696492 A US3696492 A US 3696492A US 122389 A US122389 A US 122389A US 3696492D A US3696492D A US 3696492DA US 3696492 A US3696492 A US 3696492A
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US
United States
Prior art keywords
grip
module
rack
arms
unplugging
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
US122389A
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English (en)
Inventor
Marcel Baillard
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Airbus Group SAS
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Airbus Group SAS
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Filing date
Publication date
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Publication of US3696492A publication Critical patent/US3696492A/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
    • H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
    • H05K7/1415—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means manual gripping tools
    • 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

Definitions

  • ABSTRACT A portable tool permitting, as desired, either selective plugging in of a printed-circuit module into one of a plurality of bottom grooves formed in a rack and above which groove the module is restrained by lateral slideways, or selective unplugging of one of the modules plugged into the bottom rack grooves. It comprises a grip formed by two elements movable relatively to each other.
  • One of these elements is provided with a pair of claws adapted to engage lateral recesses in the rack when the operator moves the two grip elements toward each other.
  • the other element is provided on the one hand, with pushing rods acting on the module to be plugged and, on the other hand, with hooks acting on the module to be unplugged, after having turned the grip the other way round.
  • modules which are made of insulating material, carry printed circuits and provide the requisite electronic components, are removably and interchangeably inserted into slideway systems with which the above-mentioned racks are equipped and, by their very association, provide the circuits needed for performing the required operation.
  • each module is introduced manually along the side rails provided in the rack.
  • the final operation-of plugging in, i.e., of engaging it into the bottom groove is much trickier because it involves exerting a considerable force uniformly distributed over the upper edge of the module in order to ensure correct engagement.
  • This delicate operation can be accomplished in outstandingly simple, efficient and reliable fashion by means of the device specifically designed for the purpose and which forms the object of the present invention.
  • This device is designed to make it possible to perform the reverse operation of selectively withdrawing modules one by one.
  • this unplugging operation also required the application of a force, this time in the opposite direction, and which, again in order to avoid damaging the equipment, is uniformly distributed over the entire periphery of the module and is directed rigorously along the plane of symmetry of withdrawal of each module.
  • the present invention relates to a simple, easy to handle device, requiring no special precautions in use, which, by being merely applied against the rack level with the corresponding rails, makes it possible to plug in or unplug the required modules by inserting a uniformly distributed compressive or pulling force directed along the centerplane of said modules.
  • the subject device of this invention avoids damage to the modules as a result of accidental mishandling when inserting or withdrawing them, thereby endowing them with great reliability notwithstanding the numerous manipulations to which they are subjected.
  • a grip consisting of two elements movable relatively to each other and normally kept spaced from each other by return springs;
  • FIG. 1 is a perspective showing of a device according to this invention, portrayed in the position in which it must be grasped in order to plug a module into a rack;
  • FIG. 2 is an end view of FIG. 1;
  • FIG. 3 is a side elevation view with partial cutaway
  • FIG. 4 is a detail view on an enlarged scale showing the fastening claw actuating mechanism of the device in sectional side elevation;
  • FIG. 5 is a cross-section along the line V--V of FIG.
  • FIG. 6 is an explanatory illustration of the manner of operation of the device, as used for plugging a module into a rack;
  • FIG. 7 is a cross-section taken along the line VII- VII of FIG. 6;
  • FIG. 8 is an explanatory illustration of the manner of operation of the device, as used for withdrawing a module from a rack; and FIG. 9 is a cross-section taken along the line IX-IX of FIG. 8.
  • the device shown for exemplary purposes in the drawings may be likened in general shape to a springtype dumb-bell in that it is formed by a two-part grip, namely of two parallel cylinders 1 1,, which can be gripped in one hand and tightened together against countering springs 2,, 2,,.
  • These springs are carried on two end posts 3,, 3,, which likewise form guides for the motion of element 1,, relatively to element 1,.
  • the posts 3,, 3, accordingly have one of their ends fixed into the corresponding ends of element 1,, as is clearly shown at 4 in FIG. 3, while the other element 1,, is provided with bushes 5 through which the associated posts slide.
  • the latter protrude through element 1,, and their outer ends are fitted with caps 6,, 6,, the functions of which will be explained in greater detail hereinafter.
  • movable element 1 Adjacent its ends, movable element 1, is provided with rods 7,, 7,, whose respective axes XX and YY lie in the vertical symmetry plane PP of the device, which plane is shown in a dot-dash line in FIG. 2.
  • the rods 7,, 7, have tapering terminal portions 8,, 8,, which are curved to form extraction hooks 9,, 9,. It is important to note, as is clearly shown in FIGS. 1 and 9, that the tapering portions 8,, 8,, are curved in such manner as to cause the pulling force exerted by the hooks to lie in symmetry plane PP,.
  • the two ends of element 1, comprise heads 15,, 15,, of rectangular shape for example and larger in size than the middle cylindrical portion 1,, whereby to accommodate therein the upper portion of the anchoring claw assembly which will now be described with particular reference to FIG. 3 and to the two detail FIGS. 4 and 5.
  • Each head 15,, 15, comprises two lateral slots 16,, 17, (or 16,,, 17 which extend right through it. Accommodated in these slots and capable of swinging motion are the upper ends 18,, 19, of arms 20,, 21, and 20,, 21 fulcrumed on pivots 22 23,.
  • Springs 24 positioned respectively in said slots continuously urge the pivotal arms 20,, 21,, 21 B toward the protruding portion of the associated rods 10,, 10,, whereby to cause them to bear against the respective thrust plates 14,, 14,,.
  • the lower ends of arms 20,, 21,, 20 21, are provided with outwardly turned fastening claws 24,, 25,, 24,, 25,, to which further reference will be made when the manner of operation of the device is described.
  • transverse camming plate 26 Between the lateral arms 20, and 21, is disposed a transverse camming plate 26 provided with two arms 27,, 28, engaged into said slots 16,, 17, and capable of swinging motion therein about the pivots 22,, 23,. Adjacent its upper central portion, plate 26 is provided with a cylindrical rivet 27 the head of which normally registers in contact with the joint between frusto-conical portion 12, and the smaller-diameter cylindrical portion 13, of guide 10,. Further, fixed to plate 26, beneath rivet 27, is a transverse spring blade 28 the ends of which engage in corresponding recesses 29,, 30, formed in claw-arms 20,, 21, (see FIGS. 4 and 5). Spring blade 28 is secured by a screw 31 and an appropriately arcuate second spring blade 32.
  • FIGS. 4, 5, 6 and 7 Particular reference will now be had to FIGS. 4, 5, 6 and 7 for a description of the device in its function of ensuring perfect insertion of a module into a rack.
  • FIGS. 6 and 7 a rack generally designated by reference numeral 33 is schematically illustrated in cross-section and longitudinal section respectively.
  • side walls 33, and 33, formed in side walls 33, and 33, are two horizontal grooves 36,, 36,, for receiving the claws of the movable arms of the device and for providing fastening points therefor, as will be explained in greater detail hereinbelow.
  • Each combination of two vertical slideways and the associated bottom groove can receive a board or module equipped with its printed circuit, such as 37,,, 37, 37,,,
  • module 37 When a new module such as module 37, is to be inserted, it is first inserted manually into the vertical slideways reserved for the purpose (in this case the slideway 34, 34,,,). Module 37, will then be in the position shown in solid lines in FIGS. 6 and 7. At this stage recourse is had to the subject device of this invention for the final delicate operation of plugging in the module, that is to say of inserting it into the bottom groove 35 To that end the device is grasped in one hand and fetched into the position shown in solid lines in FIG. 6.
  • module 37,1 is plugged into the lower groove 35A being uniformly nested therein in parallelism with the centerplane of the module.
  • the various component parts of the device are then in the final configuration shown in dotted lines in FIG. 6.
  • the pressure on element 1 can be released to allow the latter to be raised by the return springs 2 and 2 and the frustoconical portions 12,, 12,, of rods 10,, and 10,, to retract.
  • the four claws 24 25 and 24 25 then revert to their initial resting positions and the device can be withdrawn from the rack.
  • a portable device permitting, as desired, either selective plugging in of a printed-circuit module into one of a plurality of bottom grooves formed in a rack and above which groove the module is restrained by lateral slideways, or selective unplugging of one of the modules plugged into the bottom rack grooves, said device comprising: i
  • a grip formed by two elements movable relatively to each other and normally held in mutually spaced relationship by return springs;
  • said movable arms being capable, in their resting position, of penetrating into the rack and being provided with claws capable of engaging into lateral recesses provided for the purpose in the side walls of the rack;
  • said hooks being so devised as to enable the opera tor, after he has turned the grip the other way round, to engage them into holes provided for the purpose in the module to be extracted and to thereafter unplug the same by squeezing the two grip elements together, said grip then reacting against the edges of the rack through the medium of two abutment members fast with that grip element which supports said movable claw-arms.
  • a device for plugging in and unplugging printedcircuit modules as claimed in claim 1, wherein the movable claw-arms of each set thereof are independent of each other in that they are urged toward their respective resting positions by individual return springs and toward their fastening positions through the agency of a common transverse spring blade rigid with a central member which is hingedly mounted on a pivot common to the movable claw-arms and which is itself subjected to the direct action of the corresponding cam type actuating means.
  • each cam type actuating means is formed by a rod of which one end is fixed to that grip element which carries the two extraction hooks, said rod extending through the other grip element and having, protruding therefrom, firstly a frusto-conical camming portion which coacts with an abutment fast with the central member hingedly mounted between the movable claw-anns, and secondly a cylindrical portion provided on its free end with a thrust plate which, when the operator squeezes the two grip elements together, bears against the upper edge of the module to be plugged in.
  • a device for plugging in and unplugging printedcircuit modules as claimed in claim 1, wherein the hooks on the extraction members are offset in such manner that the pull exerted by said extraction members be directed along the then coplanar centerplanes of the module to be unplugged and of the device itself, 7

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
  • Clamps And Clips (AREA)
US122389A 1970-03-18 1971-03-09 Tools for plugging in and unplugging subsystems carried on slideways Expired - Lifetime US3696492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7009752A FR2082515A5 (fr) 1970-03-18 1970-03-18

Publications (1)

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US3696492A true US3696492A (en) 1972-10-10

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DE (1) DE2104567C3 (fr)
FR (1) FR2082515A5 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155159A (en) * 1976-08-30 1979-05-22 International Telephone And Telegraph Corporation Tool for connector member
US4468858A (en) * 1982-05-18 1984-09-04 Hughes Aircraft Company Tool for separating mated connectors
EP0349133A1 (fr) * 1988-06-28 1990-01-03 The Whitaker Corporation Outil d'extraction
US5282752A (en) * 1992-08-07 1994-02-01 E. I. Du Pont De Nemours And Company Combination connector tool
WO1994003941A1 (fr) * 1992-08-07 1994-02-17 Berg Technology, Inc. Outil pour connecteurs d'embases et prises de courant modulaires
FR2742191A1 (fr) * 1995-12-12 1997-06-13 Eurocopter France Dispositif de positionnement, de verrouillage et d'extraction d'un equipement mobile par rapport a un support fixe
EP1272023A2 (fr) * 2001-05-21 2003-01-02 Nec Corporation Gabarit d'insertion ou d'extraction pour une carte à circuits imprimés
US20080006977A1 (en) * 2006-07-05 2008-01-10 Hon Hai Precision Industry Co., Ltd. Clamp tool for circuit board
CN105643557A (zh) * 2016-02-22 2016-06-08 石家庄海山航空电子科技有限公司 一种印制电路板起拔工具
US20170244211A1 (en) * 2016-02-24 2017-08-24 Ciena Corporation Connector replacement methods and systems in a network element chassis
US20180316153A1 (en) * 2017-04-27 2018-11-01 Goodrich Corporation Connector demate tools
CN110550376A (zh) * 2019-08-14 2019-12-10 昆山睿力得自动化技术有限公司 一种pcba板人工抓取装置
US20230042043A1 (en) * 2021-08-03 2023-02-09 Delta Electronics, Inc. Fixing device and accommodation device using the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3443297A (en) * 1966-07-29 1969-05-13 Thomas K Lusby Jr Circuit module extractor
US3538580A (en) * 1968-03-04 1970-11-10 Amp Inc Tool for mounting and removing pluggable circuit components
US3626575A (en) * 1969-08-04 1971-12-14 Bertram H Greenspan Printed circuit board extractor tool

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3443297A (en) * 1966-07-29 1969-05-13 Thomas K Lusby Jr Circuit module extractor
US3538580A (en) * 1968-03-04 1970-11-10 Amp Inc Tool for mounting and removing pluggable circuit components
US3626575A (en) * 1969-08-04 1971-12-14 Bertram H Greenspan Printed circuit board extractor tool

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155159A (en) * 1976-08-30 1979-05-22 International Telephone And Telegraph Corporation Tool for connector member
US4468858A (en) * 1982-05-18 1984-09-04 Hughes Aircraft Company Tool for separating mated connectors
EP0349133A1 (fr) * 1988-06-28 1990-01-03 The Whitaker Corporation Outil d'extraction
US5282752A (en) * 1992-08-07 1994-02-01 E. I. Du Pont De Nemours And Company Combination connector tool
WO1994003941A1 (fr) * 1992-08-07 1994-02-17 Berg Technology, Inc. Outil pour connecteurs d'embases et prises de courant modulaires
US5351391A (en) * 1992-08-07 1994-10-04 E. I. Dupont De Nemours & Company Tool for assembling modular header connectors and modular receptacle connectors
FR2742191A1 (fr) * 1995-12-12 1997-06-13 Eurocopter France Dispositif de positionnement, de verrouillage et d'extraction d'un equipement mobile par rapport a un support fixe
US5779062A (en) * 1995-12-12 1998-07-14 Eurocopter France Device for positioning, locking and extracting mobile equipment with respect to a fixed support
EP1272023A2 (fr) * 2001-05-21 2003-01-02 Nec Corporation Gabarit d'insertion ou d'extraction pour une carte à circuits imprimés
EP1272023A3 (fr) * 2001-05-21 2004-12-29 Nec Corporation Gabarit d'insertion ou d'extraction pour une carte à circuits imprimés
US20080006977A1 (en) * 2006-07-05 2008-01-10 Hon Hai Precision Industry Co., Ltd. Clamp tool for circuit board
US7597369B2 (en) * 2006-07-05 2009-10-06 Hong Fu Jin Precision Industry (Shen Zhen) Co., Ltd. Clamp tool for circuit board
CN105643557A (zh) * 2016-02-22 2016-06-08 石家庄海山航空电子科技有限公司 一种印制电路板起拔工具
CN105643557B (zh) * 2016-02-22 2017-05-03 石家庄海山航空电子科技有限公司 一种印制电路板起拔工具
US20170244211A1 (en) * 2016-02-24 2017-08-24 Ciena Corporation Connector replacement methods and systems in a network element chassis
US10070553B2 (en) * 2016-02-24 2018-09-04 Ciena Corporation Connector replacement methods in a network element chassis
US20180316153A1 (en) * 2017-04-27 2018-11-01 Goodrich Corporation Connector demate tools
US10637202B2 (en) * 2017-04-27 2020-04-28 Goodrich Corporation Connector demate tools
US11355895B2 (en) 2017-04-27 2022-06-07 Goodrich Corporation Connector demate tools
CN110550376A (zh) * 2019-08-14 2019-12-10 昆山睿力得自动化技术有限公司 一种pcba板人工抓取装置
US20230042043A1 (en) * 2021-08-03 2023-02-09 Delta Electronics, Inc. Fixing device and accommodation device using the same
US12041746B2 (en) * 2021-08-03 2024-07-16 Delta Electronics, Inc. Fixing device and accommodation device using the same

Also Published As

Publication number Publication date
DE2104567A1 (de) 1971-09-30
DE2104567B2 (de) 1973-04-12
FR2082515A5 (fr) 1971-12-10
DE2104567C3 (de) 1978-06-22

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