FR2466884A1 - CONNECTING PIPE FOR ELECTRIC CIRCUITS, AND CIRCUIT PROVIDED WITH SUCH A PITCH - Google Patents

Abstract

The invention relates to connection bases consisting of a fixed base and a movable plug. In the event that locking the plug on the base is necessary after plugging in, the known bases lead, when unplugging, to the need for two separate operations, one to obtain the unlocking, the other to obtain the extraction of the plug by gripping the casing thereof. The invention uses a mobile gripping surface 38 to simultaneously control the unlocking between the bolt 37 and the keeper 34, and to perform the extraction in a single operation. The applications are in particular in the field of telephone exchanges. (CF DRAWING IN BOPI)

Description

The present invention relates to the field of

  electrical connectors, consisting of a fixed base and a mobile plug, made of insulating material, and supporting

  both elements of contact made in

  conductive material, whose complementary shape ensures, by mutual penetration during erection, the connection

desired electric.

  Such connectors are widely used but their implementation in certain areas of operation, such as telephone exchanges for example, leads to

  particular requirements, such as the realization of a guide-

  of the plug relative to the base during the manual insertion operation, associated with a locking thereof to

the end of this operation.

  However, if designing and producing guides

  and / or locks for connector plug is possible.

  ble in a general case, it usually leads, when manually extracting the plug, the need for two separate manual operations, namely (a), action on the locking device to release the plug, and (b) extraction of the plug by gripping 3t manual traction

on the shoemaker.

  This need, generally inconvenient, is a particularly harmful factor in the case of telephone exchanges, where the bases of the bases are arranged side by side.

  4 coast at very small mutual distances for des.ra-

clutter sounds.

  This gives rise to a first problem, due to the weakness of

  resulting in two adjacent mobile plugs, where it is very difficult to install and remove them manually by removing the side

the sheet.

  A second difficulty results, linked to the existence of the locking device itself, whose weak

  diastances between cards make manual access and release

  complicated rusting, a prior operation which has been shown

above necessity.

  In the industrial field of telephone exchanges,

  a known base has been proposed, called "Male DIN invert-

  "which seeks to remedy these difficulties.

  Of parallelepipedal general shape, it has an open access face for the mobile plug, framed on its two long sides by protruding flanges; and the

  particular provision adopted to overcome the

  The indicated disadvantages is the realization of a channel of rectangular section, carried by one of these protruding flanges, and opening on each side thereof. This channel is intended to provide the receptacle function for fixing any locking device, such as a lever whose base is rooted in this channel, and the other end, terminated by a hook, cooperates with a housing carried by one of the large side faces of the housing of the mobile plug.

  However, this lock is affected by

  mentioned above in applications where a large

  number of connectors is implemented with the side faces very close to each other. In addition, a

  accidental inclination of the plug causes the

Rou of his home.

  It has also been proposed to use the channel to assume the role of a part of the locking device itself, namely the strike of a lock, whose pin, ended by a hook is carried by the housing of

the sheet.

  But this solution again has a disadvantage, namely that, after a limited number of plugs, the lower edge of the channel, which serves as a bearing surface for the hook,

  undergoes progressive destruction 'the usual insulating material

  used for a base that does not have a

  high mechanical strength. In addition, the difficulties of

  this manual for unlocking are aggravated in the

  case of large numbers of connectors, as a result of the posi-

  lower attachment and requires a transmission

fragile and expensive mechanics.

  It is the object of the present invention to provide a connection base consisting of a fixed base and

  mobile plug, not having these disadvantages.

  It comprises means carried respectively by the two parts of the base, which easily allow an unlocking.

  simultaneous manual lifting and gripping, for

  juxtaposed with very small mutual distances

  your; furthermore, one of the embodiments of the

  the means carried by the particular pedestal

  able to be fixed in the existing canal

  nectors of the type indicated above; Moreover, a second set of means can be implemented, in

  combination with the first, providing guidance for the

  mobile chewing during insertion, particularly advantageous

  in case the large quantities of connectors ra.ppro-. -

  make this operation difficult, or in that the pedestals are not very accessible, which is particularly

  case in so-called "backplane" circuits.

  In general, the invention exploits the presence of the side channel of the base to make it a simple fastening element of the latch of a latch, the corresponding bolt

  being carried by an elastic lever attached to the

  bile; the fundamental characteristic of the invention is

  that the region of the housing of the mobile plug suitable for the pre-

  manual tension for extraction is precisely

due with this lever-holder.

  The two distinct operations of unlocking and

  extraction are then performed in a single maneuver.

  Among the embodiments of the invention, some

  implement an extended waste holder in the direction

  to remove from the base the cri-

  lock tick by bringing it back to the back of the

  plug. An additional feature derives from this

  Particularly advantageous in the case of a large number of bases at short mutual distance, that of the guiding of the plug, during insertion, by the striker holder which then extends parallel to this direction, since

  the back of the plug to the base of the base; this guide

  may be of the sliding-groove type, respectively

  carried by the support and the plug.

  Thus, the invention relates to a connection base

  electrical circuits, comprising on the one hand a fixed base and a movable plug provided with complementary conductor elements forming the

  connection, and on the other hand a locking device

  of the plug on the soclela connection and disconnection circuits being obtained respectively, by manual action on gripping surfaces carried by the mobile plug, base characterized in that the organ of

  unlocking control consists of one of the overrides

gripping faces.

  The invention will be better understood by means of the description

  following, on the basis of the annexed figures,

  FIGS. 1 and 2 show two variants of

  - connection bases of known type;

  FIGS. 3 and 4 show, according to two variations

  a first embodiment of a connection base.

dement according to the invention;

  FIGS. 5 and 6 show, according to two variations

  tes, a second embodiment according to the invention, with external unlocking lever; FIGS. 7 and 8 show two variants of

  second C embodiment of the base according to the invention

  tion, having a slideway for guiding the plugging.

  FIG. 1 shows a connection base con-

  naked, model "Inverted DIN male", equipped with a locking device of the mobile plug

of known type.

  The base consists of a fixed part or pedestal 1 of parallelepipedal shape and a movable plug 2, one and the other carrying conductive contacts such as 3 and 4, realizing the electrical transmission between the wires. such

  only 5 and 6, circuits to connect.

  The base 1 is parallelepipedal, and has an open access face 7 to allow plugging, one edge has a protruding rim 8 in which has been

  realized a channel 9 opening on each side of it.

  This channel is intended, as explained above, to receive a latch, strip-shaped or elastic blade, one end of which is designed to be introduced and attached thereto, thanks to harpoon 11 and support pins 12. The other end 13 is provided with a peg 14. The movable plug 2 is, in turn, provided with a striker 15. During insertion, the peg 14 penetrates the striker 15, and the lock is

realized.

  Such a base has the disadvantages described in detail above, namely the need for two steps.

  when unplugging, and the risk of unlocking

  accidental leaning by inclination of the mobile plug in the

  direction of the bolt away from the strike.

  FIG. 2 represents another known embodiment of the locking system, fitted to a base of the

model "Inverted DIN male".

  The base 1 comprises the known channel 9, which is in this case implemented by its lower face, as latch keeper 20, whose bolt is carried by a pivoting lever 21

attached to the mobile plug 2.

  Locking takes place by the elasticity of the articu-

  23, and the release control is effected under the action of a slide 24, carrying at one end a

  inclined plane 25 cooperating with an inclined plane 26 carried by

  the latch 20, and at the other end a gripping plate 27. The latch can be locked in the locked position by pressing one of its parts 28 with a locking hook

29 carried by the slide.

  The device ensures the transmission of the command

  unlocking above the mobile plug, which is useful in telephone exchanges, but on the other hand always requires two separate steps to unlock. In addition, as indicated above, the lower edge 30 of the rim of the base 1 rises rapidly after some

  plugged in, and the base itself must be replaced.

  Figure 3 represents a first embodiment of

  of the base according to the invention.

  The channel 9 of the base serves as a fixing receptacle for the static part of a lock 32, comprising two strikers 33 and 34. The fixing is carried out as in the figure

  1, by a harpoon 11 and bearing faces such as 35.

  The mobile plug.2 carries the movable part of the lock, consisting of bolts 36 and 37 fixed at the end of a

  pivoting lever 38, whose elasticity at the pivot point

  49 provides locking between the bolts 36 and 37 and strikes 33 and 34 when plugging. According to the invention, the lever 38 is disposed in a region of the form, to

  namely one of the side faces 39 of the housing, where the

  manual lifting requires, during extraction, to exercise

  pressure; the chosen face is that of one of the long sides.

  - This unlocking takes place under these conditions, simultaneously

  with the extraction, the lever 38 thus assuming advantageous

  the two functions of unlocking device and sur-

  gripping face for extracting the plug.

  FIG. 4 represents a variant of the embodiment of

  tion of the base according to the invention, particularly well suited to the case where a large number of bases are arranged side by side with their long parallel sides and with small distances prohibiting the introduction of the fingers between two of them for the manual gripping. The benchmark numbers being the same as those in Figure 3, the

  latch is, in this case, fixed on a small side 40, allow-

  both, by manual gripping along the short sides of the housing 40 and 41, grooved for better adhesion of

  fingers, extracting the plug with simultaneous unlocking

tani.

  It should be noted that a second locking system

  lage can be achieved on the second side of the short side 41, conferring to the set of strikes and two bolts a

totally symmetrical structure.

  Figures 5 and 6 show, according to two values

  In a second embodiment of the connection base of the invention, in the case where the bases are implemented in large numbers in equipment, with very small distances, both between the long sides and between the small sides. The introduction of the fingers between two bases for manual gripping is

  then made imposible. Following Figure 5, we implement

  a lock whose static part or strike is worn

  by a keeper 51 whose length, counted in the direc-

  plugging is made higher than the height of the movable plug 2. The active part bolt holder of the lock, in

  lever 52, pivotally resilient at 53, is itself

  same reach at the end of a support 54 overcoming the

  the length, counted in the direction of

  chage, is chosen sufficient to allow an easy grip on the surfaces 55 and 56, grooved for a better

Finger adhesion.-

  Figures 5 and 6 correspond to the case where the

  The pivot axis is respectively parallel and perpendicular to the large support side of the channel 9 of the base of the base. Figures 7 and 8 show a variant of the embodiments of Figures 5 and 6, making the keeper 51 assume an additional function, that guide plug during plugging. For that, the

  door leaf, opposite the door-keeper,

  slide-shaped elements such as 71 and 72, cooperating by sliding with the keeper 51; chamfers such

  that 63 and 64 facilitate the setting up.

  This arrangement is particularly advantageous

  when the connection bases, while being extremely

  closely spaced, are further arranged in the deep chassis bottom, for example those of the type called "backplane". The role of the plug-in guide, thus assumed by the same means as that which participates in the locking and unlocking of the mobile plug, thus provides, in a manner not evidently derived from the state of the art, a set of results contributing to a common goal of improved efficiency in the farm, and

  reduction in manufacturing costs.

  It should be noted, in conclusion, that the locking device and extraction of the invention has been described in the case of -embase having in one of its flanges, a channel for fixing this device; but it is understood that any other mode of attachment providing a fixation of equivalent characteristics for

  this particular device is a mono-type

  block made of a single material and continuous, is included in the

maine of the invention.

Claims (10)

R E V E N D I C A T IO N S   1. Connection socket for electrical circuits, comprising on the one hand a fixed base (1) and a movable plug (2) provided with complementary conductor elements (3) (4) forming the connection, and secondly a locking device of the plug on the base, the connection and disconnection of the circuits being obtained respectively, by plugging and extraction, by manual action on gripping surfaces carried by the   mobile connector, characterized by the fact that the   unlocking procedure is constituted by one of the surfaces gripping device (38).   2. Connection base according to claim 1, characterized in that the locking device consists of a fixed strike carried by the base, and a mobile pole, carried by the plug, attached to the end of a   lever provided with one of the gripping surfaces.   - 3. Connection base according to claim 2,   characterized in that the locking, made by penetration   bolt in the waste, is ensured by an elastic force   tick produced by the material of which the lever is made.   4. Connection base according to claim 1, -   characterized in that the movable plug comprises on the one hand a block of insulating material, with an anterior face on   which open the conductive elements for   cord with the elements of the base, and a rear surface on which they open for connection with the son of the electrical circuits, this face being covered by a protective case.   Connection base according to Claim 4,   characterized in that the lever carrying the bolt is con-   staggered by a portion of the protective boot of the mobile plug. 6. Connection base according to claim 2, characterized in that the plena carrier lever, provided with one of the gripping surfaces, is fixed to the end of a support provided with another des-gripping surfaces, the   the support being projecting, in the direction of   chage, compared to the protective case.   Connection socket according to Claim 6,   characterized in that the stationary strike of the ver-   rust is attached to the end of a support   surfaces parallel to the direction of insertion,   with complementary shaped surfaces carried by the movable plug, the two sets of surfaces constituting guide rails of the plug relative to the base during plugging.   8. Connection base according to one of the   cations 2 to 7, characterized in that the support of the striker is fixed on the base by an elastic device of the type   harpoon cooperating with an opening made in the base.   9. Connection base according to one of the   cation 2 to 7, characterized in that the striker support is made of a continuous material and in one piece with that of the base of the base.   10. Electrical circuit chassis, including the type called "backplane", characterized in that it comprises   a connection base-according to one of the claims preceding.