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Publication numberUS3150906 A
Publication typeGrant
Publication dateSep 29, 1964
Filing dateJun 7, 1962
Priority dateJun 12, 1961
Also published asDE1166856B
Publication numberUS 3150906 A, US 3150906A, US-A-3150906, US3150906 A, US3150906A
InventorsChambon Jacques, Viguie Roger
Original AssigneeCommissariat Energie Atomique
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Supporting frame for circuit plate
US 3150906 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Se t. 29, 1964 J. CHAMBON ETAL SUPPORTING FRAME FOR CIRCUIT PLATE 2 Sheets-Sheet 1 Filed June 7, 1962 WHH HHHHHHHHHHH fi WAR R p @w P 1954 J. CHAMBON ETAL 3,150,906

SUPPORTINGFRAMEFOR CIRCUITPLATE Filed June 7, 1962 2 Sheets-Sheet 2 United States Patent 3,150,906 SUPPORTHNG FRAME FGR CIRCUIT PLATE Jacques Chamhon, Grenoble, and Roger Viguie, Soisystir-Seine, France, assignors to (Zornmissariat a IEnergie Atomique, Paris, France Filed June 7, i962, Ser. No. 260,820 Claims priority, application France, June 12, 1961, 864,536 1 Claim. (Cl. 33945) The present invention relates to an interchangeable element which is intended to support and rigidly maintain a plate on which are mounted electric circuits. The invention is preferably although not exclusively intended for use in conjunction with those electrical circuits which are designed according to the known method of printed circuits.

It is known that in this case, the plates are preferably provided in the form of thin sheets obtained from a small thickness of good electric insulation material. The various inputs or outputs of the circuits which are printed on the said material are connected to a series of metallic contacts which are grouped together on one of the sides of the plates and placed at right angles to this latter.

The invention has for its object to permit the locking and position-maintenance of each plate on a stand ard element or frame and to provide in addition means for permitting a number of identical frames to be assembled together in a simple and very easily detachable manner.

To this end, each frame, which is formed by an up right member fitted with a multi-terminal connector and completed by two parallel lateral members in each of which is formed a groove serving as a guide for the edges of the plate, is characterized in that the said frame comprises locking and withdrawal hooks designed to pivot about pins which are made integral with the said frame through slots formed in the plane of the guide grooves, the said hooks each comprising on the one hand a tooth which effects the locking action as a result of the engagement of the said tooth inside a notch formed in the corresponding edge of the plate and, on the other hand, a finger which effects the withdrawal of the plate by hearing against a shoulder formed on the same edge of the said plate.

Each hook is provided with a control rod which serves to effect the operation of the said hook either in the direction of locking or of withdrawal of the plate as a result of the rotation of the said hook about the pivot-pin.

In addition, each hook is provided with a restoring member which applies a force having a tendency to continuously thrust back the said hook towards the locking position thereof, the said restoring member consisting of a spring coiled round the pin about which the said hook is adapted to pivot, and the ends of which are applied respectively on the one hand against the frames and on the other hand against the hook itself.

Finally, it can be useful to form units which comprise a number of series of interchangeable frames of the type referred-to above. With this object in view, and in order to carry out the assembly of two frames, provision is made both for fixation studs which are integral with the side members and which are designed to fit inside bores formed in the corresponding sides of the other frame, as well as for sole-pieces which are rigidly fixed to the connector-supports and which serve as a bearing abutment for each frame.

Further advantages and characteristic features of the present invention will be more clearly brought out by the description which follows below with reference to one example of construction of the invention, it being 3,152,906 Patentedsept. 29, 1964 understood that the said example is not given in any sense by way of limitation.

In the accompanying drawings:

FIG. 1 represents a view in horizontal cross-section of a supporting frame constructed in accordance with the invention.

FIG. 2 represents a side view of the frame of FIG. 1.

FIG. 3 represents an end view of the frame of FIG. 1.

FIG. 4 represents an assembly of three frames mounted together.

As can be seen in FIG. 1, a frame in accordance with the invention is composed chiefly of a frame support 1 which is joined to two lateral uprights 2 and 3. The support 1 holds between two shoulders 4 and 5 a multiterminal connector 6, the lead-out connections of which are joined to spade terminals such as the terminal 7 which are grouped together at one end of the connector. In order to simplify the figure, only two spade terminals 7 have been illustrated.

The support 1 is joined to the uprights 2 and 3 by any appropriate means such as cap screws 8, for example.

In the frame referred-to above, there is fitted a plate 9 which serves as a base for any electric circuit, which is not illustrated in the drawings. The input and output contacts 10 of the said circuit are grouped together on one of the edges of the plate, the said edge being intended to be fitted into the multi-terminal connector 6. In accordance with the invention, the frame is provided with a system for locking the plate in position; to this end, there is formed in each of the lateral uprights 2 and 3 a groove 11 inside which the edges of the circuit-plate 9 are intended to slide. Two hooks 12 and 13 having teeth 12a and 13a, respectively corresponding respectively to the sides 2 and 3, are pivotally mounted on two pins 14 and 15 in such manner that the ends of the said hooks can engage inside notches 16 and 17 formed in the plate itself at a suitable distance from that end of the said plate which is fitted inside the connector 6. Hooks 12 and 13 are provided with handles 22 and 23, respectively. In the locking position, it is accordingly ensured that a satisfactory coupling is provided between the contacts 10 of the plate 9 and the spade terminals 7 of the connector.

In order to permit the possibility of changing and replacing one plate by another and, as a means to achieving this purpose, in order to unlock the hooks which are engaged inside the corresponding notches, provision has been made for two fingers 18 and 19 which are respectively integral with the hooks 12 and 13 and which are brought to bear against two shouldered portions 20 and 21 of the plate 9; a movement applied against the handles 22 and 23 of the hooks in the direction which tends to draw them towards each other communicates to the fingers 18 and 19 an effort which is transmitted to the plate and makes it possible to withdraw the end of this latter from the connector 6.

Moreover, as has been more especially illustrated in FIG. 2, the locking hooks are fitted with a restoring spring 24 which is fitted inside a recess 25 of the corresponding lateral member of the frame, in such manner as to continuously thrust back the hooks towards the plate so as to cause the said hooks to remain stationary when they are in the locking position.

Finally, the device in accordance with the invention comprises means for permitting a number of frames to be assembled together. As can be seen in FIG. 2, each lateral member of the frames comprises a lug or stud 26 and a bore 27 which are provided respectively on two opposite edges of the said lateral member. Moreover, it can be seen in FIG. 3 that each connector support has two sole-pieces 28 and 29 which are disposed at each end in opposite relation. FIG. 4 then shows the combined assembly of three frames and brings out more clearly the respective functions of the lugs and solepieces.

It will be understood thatthe present invention is not limited to the single form of embodiment which has just been described. In particular, it would be possible to contemplate certain alternative forms in the design of the locking hooks as well as in the means of assembly of the various frames.

What we claim is: In a supporting frame for circuit plates, an upright, a multi-terminal connector on said upright, two spaced parallel lateral members connected to said upright, a groove in each of said members, a circuit plate slideably mounted in said grooves, a pair of spaced locking and withdrawal hooks, a slot in each of said members through said groove in said member adjacent to said upright,

pivot means mounting one of said hooks in each of said slots, each of said books including a tooth, a notch for each of said hooks in said plate in locking cooperation with each of said teeth, a finger on each of said hooks bearing against the end of said plate adjacent to said connector, a handle for rotating each of said hooks about its pivot means and spring means for each of said hooks urging each of said hooks toward locking position with each of said teeth in each of said notches.

References Cited in the file of this patent UNITED STATES PATENTS 2,217,496 Riley Oct. 8, 1940 2,647,244 Dewey et a1. July 28, 1953 3,048,811 Lock Aug. 7, 1962

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2217496 *Nov 16, 1938Oct 8, 1940Westinghouse Electric & Mfg CoConnector
US2647244 *Aug 31, 1950Jul 28, 1953Reeves Instr CorpPrepatch connector bay
US3048811 *Sep 26, 1958Aug 7, 1962Painton & Co LtdSocket connector for printed circuit board
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3278714 *Nov 5, 1964Oct 11, 1966Int Standard Electric CorpSupporting frame for printed circuit board
US3311863 *May 25, 1964Mar 28, 1967Scanbe Mfg CorpPrinted circuit board hardware
US3335386 *Nov 19, 1964Aug 8, 1967Admiral CorpLocking device for printed circuit modules
US3954242 *Oct 10, 1974May 4, 1976Nifco Inc.Plastic fastener
US4070081 *Sep 27, 1976Jan 24, 1978Yamaichi Electric Mfg., Co., Ltd.Coupling mechanism for male and female connectors
US4178051 *Jun 21, 1978Dec 11, 1979Amp IncorporatedLatch/eject pin header
US4214800 *Jan 8, 1979Jul 29, 1980Amp IncorporatedLatching-ejector device
US4241966 *Apr 26, 1979Dec 30, 1980Thomas & Betts CorporationConnector with ejector-retainer means
US4345809 *Jun 9, 1980Aug 24, 1982Sugden Mary LCircuit board ejector and guide
US4417778 *Oct 23, 1981Nov 29, 1983Bell Telephone Laboratories, IncorporatedCircuit interlock arrangement
US4810200 *May 16, 1988Mar 7, 1989E. I. Du Pont De Nemours And CompanyIC-pack connector apparatus having ejecting function
US4898540 *Dec 28, 1988Feb 6, 1990Yamaichi Electric Mfg. Co., Ltd.Connector for a printed circuit board
US4990097 *Feb 21, 1990Feb 5, 1991Amp IncorporatedElectrical connector with module extraction apparatus
US4990107 *Nov 17, 1989Feb 5, 1991Amp IncorporatedIntegrated circuit module connector assembly
US5074800 *Nov 8, 1990Dec 24, 1991Molex IncorporatedLocking type ejection lever for use in a card edge connector
US5147211 *Jul 3, 1991Sep 15, 1992Robinson Nugent, Inc.Electrical interconnect device with module ejection means
US5213533 *Apr 23, 1992May 25, 1993Intercon Systems, Inc.Electrical connector block assembly
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DE2221995A1 *May 5, 1972Nov 16, 1972Inventio AgVorrichtung an Steckverbindung fuer gedruckte Leiterplatten
EP0431888A1 *Dec 4, 1990Jun 12, 1991Molex IncorporatedLocking type ejection lever for use in a card edge connector
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U.S. Classification439/157
International ClassificationH05K7/14
Cooperative ClassificationH05K7/1409, H01R12/7005, H05K7/1401
European ClassificationH01R23/70A, H05K7/14B, H05K7/14B2E