EP0824769A1

EP0824769A1 - Plug for an electrical device

Info

Publication number: EP0824769A1
Application number: EP97905141A
Authority: EP
Inventors: Uwe Heider; Rolf Strohmeyer
Original assignee: Vorwerk and Co Interholding GmbH
Current assignee: Vorwerk and Co Interholding GmbH
Priority date: 1996-03-04
Filing date: 1997-02-27
Publication date: 1998-02-25
Anticipated expiration: 2017-02-27
Also published as: DE19608245A1; PT824769E; EP0824769B1; DE59708004D1; ATE222669T1; DK0824769T3; WO1997033350A1; ES2177935T3

Abstract

The invention relates to a plug (1) for an electrical device with at least two flat pin sockets (6) in which the plug (1) is out-of-round in cross section perpendicularly to the plug-in direction (r), with an axis of symmetry (x) passing through the largest dimension. To provide a plug for an electrical device which is characterized by a geometrically uncomplicated, stable and easily handled design, it is proposed that an axis of osculation (y) run transversely to the axis of symmetry (x) in such a way that the cross section above and below the axis of osculation (y) is bounded by a convex line of curvature (K1 and K2), where both lines of curvature (K1 and K2) are substantially in the shape of a section of a circle with different radii.

Description

00001 socket for an electrical device 00002

00003 The invention relates to a socket for an electrical

00004 advises with at least two tab receptacles, whereby

00005 the socket in cross section perpendicular to the insertion

00006 out of round, with one of the largest dimensions

00007 current axis of symmetry is formed. 00008

00009 Such sockets for electrical devices are extensive

00010 known. Such a socket forms together with

00011 a plug-in plug into this plug

00012 device that allows an electrical device from

00013 to solve his connecting line. Is located

00014 the socket on the connecting cable and the plug

00015 firmly on the electrical device so that the connector pins in

00016 unplugged state cannot be live

00017 NEN. A distinction is made between plug devices

00018 with and without protective conductor. Known connectors

00019 without a protective conductor are essentially one

00020 two circular sections arranged side by side

00021 th composite cross-section. In these two

00022 the circular sections are plug receptacles

00023 orders. These connectors are for connection

00024 of insulated devices, such as portable radios

00025 or the like used. A well-known use

00026 a plug device provided with a protective conductor

00027 device is, for example, the electrical connection of computers, computer

00028 ter screens or hi-fi devices. Here is

00029 differentiate between cold and warm device plug-in

00030 directions, the warming device connectors

00031 are heat resistant. For this protective contact plug

00032 directions are preferred on the connection line side

00033 sockets used, which one essentially

00034 rectangular cross section with two sharply beveled

Have 00035 corner areas. Relative to a parallel to the 00036 Extension of the longer cross-sectional dimension

Dividing axis 00037 are the strongly flattened corner

Rich arranged above this. The cross-section

00039 cut below the division axis has corner areas

00040, which are only slightly rounded. It he-

00041 enters - based on the division axis mentioned

00042 asymmetrical cross section, which gives the user a

00043 visual aid for correct insertion

00044 is given. In the cross section that the

00045 has flattened corner areas, is approximately in the middle

00046 flat plug receptacle arranged, in which after a

00047 plugging the socket and plug of the plug

00048-sided protective contact pin retracts. In the area of

00049 other cross-sectional section are two further flat

00050 plug receptacles arranged on which

00051 Finally there is a voltage. These two current-

00052 are the connector receptacles and the protective contact

00053 arranged substantially triangular to each other. 00054

00055 With regard to the above-described prior art

00056 becomes a technical problem of the invention therein

00057 seen specifying a socket for an electrical device,

00058 which is characterized by a geometrically uncomplicated,

00059 stable and technically advantageous design

00060 tion distinguishes. 00061

00062 This problem is first and foremost

00063 solved the object of claim 1,

00064 is that a division across the axis of symmetry

00065 axis runs such that the cross section above and

00066 below the division axis of a convex bend

Mung line is limited, both lines of curvature in

00068 are essentially circular, with different

00069 borrowed radii. This creates a kind of elliptical

00070-shaped cross section, preferably the transitional 00071 rich of the two cross-sectional sections also

00072 are rounded. An exit is preferred

00073 design, in which the radius of the above the part

Lateral axis arranged cross-sectional portion larger

00075 is the radius below the division axis

00076 extending curvature line. E.g. can the radius of the

00077 upper convex line of curvature 45 to 55 mm, preferred

00078 50 mm and the lower Krüiraπungslinie a radius of 35

00079 to 40 mm, preferably 37 mm. It is essential

00080 that the center of the radius of curvature

00081 arranged outside the total cross section of the socket

00082 net and is the center of the radius-smaller bends

00083 line lies within the total cross-section,

00084 where both centers on the axis of symmetry of the

00085 socket positioned. There is also the possibility

00086 ability, the two above and below the part

00087 curvature lines extending from the axis

00088 several circular sections of different radii

To put together 00089. This results in a manageable

00090 technically favorable design of the socket.

00091 In particular, this embodiment proves to be

00092 friendly. The already addressed in the prior art

00093 Chen visual aid to the user, the outlet

Place 00094 in the correct position on the connector to be assigned,

00095 is due to the asymmetrical, non-circular design of the

00096 cross-section still given. In an advantageous

00097 th further development of the subject matter of the invention is

00098 see that one of the two transition areas of the

00099 cross-sectional dimensions given to different circular lines

00100 measurement is significantly larger than a perpendicular one

00101 Largest dimension of the cross section. This gives

00102 is a relatively flat design of the socket. together

00103 men with the cross-sectionally formed transverse

00104 cut sections above and below the division

00105 axis results in an ergonomically favorable design 00106 tung. Ratios of

00107 15:10 to 20:10, preferably 17:10. In a preferred

00108 design is a largest cross-sectional dimension

00109 solution of approx. 34 mm and a perpendicular

00110 en Dimension of approx. 20 mm provided. Will continue

00111 proposed the insertion length of the socket in the

00112 device-side connector receptacle of the largest transverse

00113 to adapt the cut dimension of the socket. This means

00114 tet preferably an aspect ratio of greatest cross

00115 cut dimension to insertion length of approx. 1: 1, what,

00116 based on the aforementioned dimensions, an insert

00117 corresponds to a length of approx. 34 mm. Furthermore, in

00118 suggestion that the tab receptacles in

00119 reference to a connecting line between the transition

00120 areas asymmetrically, namely to the cross-section

00121 cut with the more curved outline,

00122 are offset. As already indicated, the plug-in

00123 se -related to the connecting line between the over-

00124 gear ranges - asymmetrical, but -related to the

00125 axis perpendicular to this line - sym-

00126 constructed. The result of this is that at a

00127 symmetrical arrangement of the tab receptacles around

00128 which is perpendicular to the connecting line between the

00129 transition area extending axis and a -bezo-

00130 centered on the total cross section of the socket

00131 aligned arrangement the tab receptacles

00132 - asymmetrically related to the connecting line -

00133 are classified. In the preferred embodiment of the plug-in

00134 se, in which above and below this connection

00135 line of curvature limited the cross section

00136 different radii are provided

00137 flat plug receptacles in the direction of the more

00138 curved outline, i.e. H. more in the area of small

00139 cross section having a radius

00140 sets. It is preferred here that the flat plug receptacle 00141 parallel to the connecting line between the

00142 to shift gears such that a connection

00143 line between the centers of the flat connector

00144 shots at least approximately due to the area

00145 point of the entire socket cross-section runs,

00146 the latter - due to the composition of the

00147 cross-section from lines of curvature different

00148 Radii - not with the intersection of the connecting line

00149 between the two transition areas and this

00150 vertical axis coincides. The flat

00151 plug receptacles are otherwise those in the state of the

00152 technology based on known recordings. You point

00153 each have a rectangular entry cross section

00154 rich. In the longitudinal direction of the socket

00155 extending opening is an electrical

00156 Connection-forming, metallic clamping sleeve provided.

00157 According to the invention it is further proposed that the

00158 socket a protruding beyond its outer surface

00159 has locking cams, which is perpendicular to the

00160 ung of the flat plug receptacles is resilient. Conditionally

00161 by this configuration is a pull-out protection

00162 given plug device. When the

00163 socket in a device-side, suitably trained

00164 dete plug receptacle the locking cam enters a

00165 take. This latching is only deliberate

00166 unlockable, what in the area of the connector receptacle

00167 corresponding probe element or the like is provided

00168 can be. The socket-side locking cam is removed

00169 against the spring force by means of the device-side touch

00170 shifted element, so that after a deduction of the

00171 socket can be done. This is especially true of

00172 advantage if the socket according to the invention when moving

00173 lent devices such as vacuum cleaners, lawn mowers

00174 or the like, is used. Here it can

00175 due to tensile loads on the socket 00176 unintentional loosening of the connector. This

00177 is opposed according to the invention by the locking cams

00178 works. It is also proposed that the locking cam

00179 arranged on the less curved outside

00180 is. It proves to be particularly advantageous here

00181 in that the locking cams approximately in the middle of the flat plug

00182 recordings is aligned. In a preferred one

00183 embodiment in which the less curved

00184 outline of the socket cross-section the upper loading

00185 richly forms the socket, there is the advantage

00186 that the catch cams when the socket is gripped

00187 sits ergonomically, so that this in the simplest

00188 way by means of the thumb to insert the socket

00189 depressed in a device-side connector receptacle

00190 can be. There is also the option of

00191 device-side connector receptacle with a locking cam

00192 assigned to bevel, which at

00193 an insertion of the socket depressing the

00194 detent cam causes. As mentioned at the beginning,

00195 can provide the socket with a protective contact

00196. This can be in the form of another flat connector

00197 record which cross-section between the two

00198 flat plug receptacles and offset in height in the

00199 tion on the more curved outer line of the plug

00200 is arranged cross-section, be formed.

00201 However, an embodiment is preferred in which

00202 cross-section between the two tabs

00203 took a circular connector is formed. This

00204 has in a configuration of the socket with protective

00205 leads a correspondingly trained round contact sleeve

00206 se on. It is also provided that during training

00207 the socket without a protective contact the round plug

00208 recording is not conductive. The so formed

00209 te round plug receptacle is therefore a blind open

00210 would be formed without a contact sleeve. 00211 The invention further relates to an electrical appliance

00212 ker with a connector holder and an adapted

00213 socket, the plug receptacle and the socket

00214 cross section perpendicular to the direction of insertion,

00215 with a symmetry running through the largest dimension

00216 triaxis are formed. Here is a

00217 trisch uncomplicated training an advantageous

00218 insertion behavior achieved in that transverse to the symmetry

00219 triaxis a division axis runs such that the

00220 cross section above and below the division axis

00221 is bounded by a convex line of curvature, wherein

00222 both lines of curvature essentially

00223 mig, with different radii. Due

00224 this configuration receives the connector receptacle

00225 Instructor function for the socket. With one easy

00226 twisted attachment of the socket on the plug receptacle

00227 me the convex lines of curvature cause a reeving

00228 of the socket in the plug receptacle. The socket

00229 is automatically in the desired insertion position

00230 relocated. It also follows from the geometries that

00231 a clear blocking despite only slight asymmetry

00232 is given for incorrect handling. For example,

00233 the socket in a position rotated by 180 °

00234 connector receptacle supplied, so it is not a plug

00235 possible. Here comes the referring function

00236 on the connector receptacle not applicable. The user

00237 cannot use the clutch either

Teach 00238 so that malfunctions are counteracted. 00239

00240 The invention is based on the drawing,

00241, which only represents exemplary embodiments, explains

00242 tert. Here shows: 00243

00244 Fig. 1 an inventive socket for an electrical

00245 tro device with an electrical connection line and 00246 a conventional electrical connector in perspective, 00247 regarding a first embodiment; 00248 00249 FIG. 2 shows a perspective cutout view 00250 of a 00251 electrical device plug embedded in an electrical device with a plug receptacle 00252 me, likewise relating to the first embodiment; 00254 00255 FIG. 3 shows a side view of the socket according to FIG. 1 00256 and the electrical appliance plug according to FIG. 2, 00257 partially cut; 00258 00259 FIG. 4 shows a representation corresponding to FIG. 3, 00260, however, when the socket 00261 is plugged into the plug receptacle of the electrical appliance plug; 00263 00264 Figure 5 is a perspective view of the plug 00265 se, relating to a second embodiment. 00266 00267 FIG. 6 shows an end view of the socket according to 00268 FIG. 5; 00269 00270 Figure 7 is a side view of the socket. 00271 00272 Figure 8 is a plan view of the socket. 00273 00274 FIG. 9 shows the section according to line IX-IX in FIG. 8 00275 through the area of a flat plug receptacle 00276 of the socket; 00277 00278 FIG. 10 a further section along the line XX in 00279 FIG. 9; 11 shows an end view of an electrical appliance plug arranged in an electrical device, in 00283 a second embodiment; 00284 00285 Figure 12 shows the section along the line XII-XII in Fig. 11 .; 00286 00287 FIG. 13 shows a representation corresponding to FIG. 4, 00288 however relating to the design of the socket and the electrical device connector according to the second embodiment shown in FIGS. 5 to 00290 12; 00292 00293 FIG. 14 shows a representation corresponding to FIG. 11, but 00294 relates to a third embodiment; 00295 00296 Figure 15 shows the section along the line XV-XV in Fig. 14 .; 00297 00298 FIG. 16 shows a representation corresponding to FIG. 13, 00299 but the socket of the second embodiment according to FIGS. 5 to 10 is plugged into the electrical connector 00301 of the third embodiment 00302 according to FIGS. 14 to 15 ; 00303 00304 Fig. 17 is a side view of the socket in a 00305 third embodiment; 00306 00307 FIG. 18 shows a representation corresponding to FIG. 6, 00308 however relates to the embodiment according to FIG. 17 relating to 00309; 00310 00311 Fig. 19 is a plan view of the socket of the third 00312 embodiment. 00313 00314 A socket 1 for an electrical device 10 is shown and described first with reference to 00315 FIG. 1 00316 an electrical connection line connected to this

00317 2 and at the other end connected to line 2

00318 NEN, usual electrical plug 3. The socket 1 is in

00319 FIGS. 1 to 4 shown in a first embodiment

00320 represents. 00321

00322 The socket 1 is perpendicular to one in cross section

00323 insertion direction r out of round, with a through

00324 the largest dimension axis of symmetry x.

00325 As can be seen from FIG. 1, the plug-in connector

00326 se 1 essentially consists of two successive

00327 th areas together. For one thing, this is a

00328 insertion area A, which is transverse to the axis of symmetry

00329 x graduation axis y, whereby the

00330 Cross section into an upper and a lower area

00331 is divided, the two areas being different

00332 have area dimensions. The second section of the

00333 socket 1 connects to the first section A.

00334 and forms a connection section B. At this

00335 connection section B is the connection line 2 mentioned

00336 arranged, in section B a usual,

00337 train protection, not shown, for line 2

00338 is involved. Area B is in the form of a pyramid

00339 blunt and has ribs 4 on the outside

00340 improved manageability. 00341

00342 The cross section of the insertion area A is above

00343 and below the division axis y each of one

00344 convex Krrrimungslinie Kl and K2 limited, both

00345 Krürπmungslinien Kl and K2 essentially circular

00346 are sectional. The above the division axis y

00347 curvature line Kl is less strong

00348 curved than that below the division axis y

00349 end curvature line K2, which means that the radius

00350 of the upper curvature line Kl is greater than the radius 00351 of the lower curvature line K2. In the transition areas

00352 chen U between the different curvature lines

00353 Kl and K2 is a smooth transition in form

00354 provided a rounded connecting line. A

00355 connecting line between these transition areas U

00356 forms the division axis y already mentioned. 00357

00358 As can also be seen from FIG. 1, in the end face

00359 before 5 of the socket 1 two tab receptacles 6 and

00360 a circular connector receptacle 7 inserted. The flat panel

00361 core receptacles 6 have an essentially rectangular

00362 gen cross section, with the longer side parallel

00363 is aligned with the division axis y. Related to the

00364 axis x, the tab receptacles 6 are symmetrical

00365 arranged, but with respect to the division axis y

00366 asymmetrical, namely with the cross-section

00367 offset the more curved outer line K2. The

00368 pitch axis y therefore passes through the tab connector

00369 did not take 6 in the middle. 00370

00371 The circular connector receptacle 7 is cross-sectionally

00372 see the two tab receptacles 6 arranged and

00373 has a circular cross section. The order

00374 is made so that an axis of symmetry

00375 round connector opening 7 congruent with the symmetry

00376 axis x of the socket 1 runs and the perpendicular to

00377 this axis of symmetry of the circular connector

00378 record 7 almost in height with the lower edges of the

00379 female connector 6 is aligned. 00380

00381 The tab receptacles 6 have arranged on the inside

00382 nete, electrically conductive clamping sleeves 8, to which

00383 the individual wires of line 2 are connected at the rear

00384 sen. The circular connector receptacle 7 is shown in the

00385 th embodiment as blind recordings, ie not 00386 conductive, since in this embodiment

00387 no protective conductor is provided. During an apprenticeship

00388 of socket 1 with protective conductor can, however, in the

00389 Rundεteckeraufnähme 7 a correspondingly trained

00390 clamping sleeve may be provided to form a protective contact

00391 bars. 00392

00393 An electrical appliance plug 9 is shown in FIG. 2,

00394 which is shown only in a schematic

00395 electrical device 10 is embedded. This electrical appliance

00396 connector 9 has a connector receptacle 11, in which

00397 contact pins in the form of tabs 12 are exposed. 00398

00399 The electrical appliance plug 9 essentially sits down

00400 from a housing 13 and one in this housing 13

00401 recessed connector part 14 together. This connector

00402 part 14 is related to a front, the outer wall

00403 of the electrical device 10 facing edge of the housing

00404 ses 13- set back so that it is in front of the plug part

00405 14 forms a cavity, namely the one already mentioned

00406 connector receptacle 11. They protrude into this cavity

00407 the plug part 14 arranged flat plug 12 into it,

00408 the length of these flat plugs 12 having a smaller dimension

00409 εen is the depth measured in the same direction

00410 of the connector receptacle 11. The tabs 12 are electrical

00411 trically conductive and rearward in the area of the connector part

00412 les 14 with corresponding connecting lines, which

00413 within the device 10 to an electric motor or

00414 lead like, connected.

00415

00416 As can be seen in particular from FIG. 2, the

00417 electrical connector 9, in particular its housing 13,

00418 has a cross section which corresponds to that of the socket 1

00419 corresponds. The inner wall line of the transverse

00420 section of the housing 13 corresponds to that of the outer 00421 line course of the socket 1. The corresponding 00422 radii and clear dimensions of the housing 13 are slightly 00423 larger than that of the socket 1, so that the latter 00424 can be inserted into the plug receptacle 11 without problems 00425. 00426 00427 Also in the electrical appliance plug 9, the 00428 cross-section is composed of a cross-sectional section 00430 arranged above and below 00429 a division axis y ¹ . The upper area is bounded by 00431 a convex line of curvature K3 and the lower section 00432 by a line of curvature K4. 00433 here too, the radius of the upper line Krürrπiungslinie K3 is 00434 larger than that of the lower line K4. 00435 00436 It can also be seen that both the socket 00437 and the electrical appliance plug 9, the dimension 00438 between the two transition areas U is significantly 00439 larger than the perpendicular largest dimension 00440 of the cross section. 00441 00442 The flat plugs 12 already mentioned are arranged in 00443 of the plug receptacle 11 such that when the socket 1 is inserted into the receptacle 11, the flat plugs 12 penetrate the flat plug receptacles 6 in 00446 the clamping sleeves 8 to form a coupling ¬ 00447 th. This can be seen in FIG. 4. It can also be seen from 00448 that the length of the insertion region A measured in the insertion 00449 direction r corresponds to the depth of the connector receptacle 004550 measured in the same direction, so that after the 00452 socket 1 is plugged onto the electrical appliance connector 9 only the 00453 connection area B of the socket 1 emerges from the plug receptacle 00454 me 11. This results in further functions of the two areas A and B. Area A is the 00456 actual coupling area to achieve a plug-in

00457 device. Area B is considered a handling area

00458 rich, in which area the socket 1 is detected

00459 for insertion in or execution from the electrical appliance

00460 connector 9. 00461

00462 If a plug device with a protective conductor is required,

00463, the socket 1 is, as already mentioned, in the area

00464 their circular connector receptacle 7 with a corresponding

00465 trained clamping sleeve. The connector receptacle

00466 11 then has a correspondingly aligned and

00467 trained round plug 15, which in FIG. 2nd

00468 to 4 is shown in broken lines. 00469

00470 in FIGS. 5 to 10 is a second embodiment

00471 of the socket 1 shown, which with a, even

00472 if a second embodiment is concerned and in

00473 FIGS. 11 and 12 illustrated electrical appliance plug 9

00474 can be coupled. This clutch position is in the

00475 Fig. 13 shown. 00476

00477 The socket 1 in the second embodiment has

00478 a cross section in the insertion area A, which in

00479 its contour that of the first exemplary embodiment

00480 corresponds. Here too it is above a division axis

00481 y a cross-sectional area is formed which is defined by a

00482 convex line of curvature Kl is limited. The one below

00483 the division axis y is formed by a

00484 another convex having a different radius

00485 Krürr \ τπungslinie K2 limited. The radius Rl of the top

00486 curvature line Kl is dimensioned larger than here too

00487 the radius R2 of the lower line of curvature K2. 00488

00489 In the exemplary embodiment shown, the radius Rl

00490 the curvature line Kl with approx. 50 mm and the radius R2 00491 of the curvature line K2 with approx. 37 mm (cf.

00492 Fig. 6). The transition areas U between the

00493 lines K1 and K2 are also circular segment

00494 mig trained. 00495

00496 It also follows from these dimensions that the geometrical

00497 see center Ml of the curvature line Kl outside of it

00498 total cross-section of the socket 1 lies, whereas

00499 the geometric center M2 of the Krürnπungslinie K2

00500 is arranged within the overall cross-section.

00501 Both geometric centers Ml and M2 are on the

00502 axis of symmetry x aligned. 00503

00504 Due to the perpendicular to the symmetry axis x

00505 tried to make the cross-section asymmetrical

00506 results in a center of area F, which is not with

00507 the intersection of the axis of symmetry x and the division axis

00508 y coincides. It is rather the case that this surface

00509 center of F-related to Fig. 6- below the

00510 division axis y, i.e. H. offset towards the

00511 more curved line of curvature K2 is formed. 00512

00513 results from the geometric dimensions described

00514 -related to the cross-section- a width / height ratio-

00515 from approx. 17:10. Based on the execution example

00516 game results from the two transition areas

00517 before U given cross-sectional dimension b of approx. 34 mm

00518 and a perpendicular maximum dimension c of approx.

00519 20 mm. 00520

00521 As can further be seen from FIG. 8, the insertable

00522 dimension A so that the length a of the insertion area

00523 approximately corresponds to the cross-sectional width dimension b. 00524 00525 In contrast to the first embodiment, the

00526 exit level of the tab receptacles 6 not on

00527 the plane of the end face 5, but is opposite to the

00528 insertion direction r set back. It he-

00529 is therefore a through the outer wall of the plug

00530 se 1 outwardly limited cavity 16, the depth in

00531 about 5 mm from the exemplary embodiment shown

00532 speaks. The tab receptacles 6 open into the floor

00533 rich this cavity 16 and are in cross section

00534 rectangular. Contrary to the first

00535 example it is here that the longer side of the

00536 rectangle cross sections parallel to the axis of symmetry x

00537 is aligned with an aspect ratio

00538 from approx. 15:10 or from approx. 8.5 to 5.5 mm. Parallel

00539 to extend the division axis y are the two

00540 tab receptacles 6 with a dimension of approx. 9 mm

00541 spaced from each other, this with a symmetrical

00542 arrangement to axis x. 00543

00544 As can be seen from FIG. 6, the flat plug receptacles are

00545 men 6 asymmetrical with respect to the division axis y,

00546 namely to the cross-sectional section with the stronger

00547 curved outer line K2, offset such that a

00548 central axis running parallel to the division axis y

00549 of the two tab receptacles 6, for example, by the area

00550 center of the F runs. 00551

00552 In the tab receptacles 6 are at a distance

00553 of approx. 9 mm to the bottom 17 of the cavity 16 clamping sleeves

00554 8 attached. As with the first implementation

00555 can play the cross-section between the two

00556 flat plug receptacles 6 trained round plug receptacles

00557 me 7 can also be provided with a clamping sleeve 8.

00558 In the exemplary embodiment shown, the round plug

00559 core holder 7 but not conductive, ie as a blind opening 00560 would be trained. This circular plug receptacle 7 00561 also opens in the area of the floor 17 that is offset from the end face 5 00562. 00563 00564 Furthermore, the socket 1 of the second embodiment has a 00566 locking cam 18 projecting beyond the outer surface, which extends perpendicular to the extension 00567 of the flat plug receptacles 6 is resilient. Specifically, the arrangement 00568 is such that the locking cam 00569 18 is arranged on the 00570 upper outer surface of the insertion area A described by the line of curvature K1, with central alignment to the flat plug receptacles 00572. 6. The position is also selected such that the 00573 locking cam 18 is positioned approximately in the middle of the longitudinal extent a of the 00574 insertion region A. 00575 00576 This detent cam 18 can be displaced in the direction of a compression spring 19 arranged in the insert area 00577 such that the detent cam 18 is completely immersed in the outer wall 00579 of the insertion area A. 00580 00581 The positioning of the locking cam 18 on the top 00582 of the insertion area A and the approximately central positioning there 00583 offers the ergonomic advantage of 00584 simply pressing down the locking cam 18 by means of 00585 thumb pressure. 00586 00587 FIGS. 11 and 12 show the electrical appliance plug 9 in 00588 of a second embodiment. This 00589 electrical appliance plug 9 is essentially composed of 00590 a housing 13 and a plug part 14. 00591 00592 Contrary to the first exemplary embodiment, viewed in the setting direction r 00593, a 00594 cantilevered filler piece 20 is placed on the plug part 14, on which 00595 in turn brackets 21 arranged for tab 12

00596 are. 00597

00598 The inner wall of the housing 13 corresponds to this

00599 embodiment also the cross-sectional dimensions

00600 gene of the plug 1. The radio R3 of FIG. 11

00601 shown top curve K3 corresponds in

00602 essentially the radius Rl and the radius R4 of the lower

00603 ren KrüπiTuungslinie K4 essentially the radio R2 of

00604 socket 1. Here, too, runs vertically

00605 to the axis of symmetry x 'aligned dividing line y'

00606 the transition areas between the two curvature

00607 lines K3 and K4. 00608

00609 The mentioned filler 20 has the same geometrical

00610 see structure, but in a reduced form, so that

00611 between the filler 20 and the inner wall of the

00612 housing 13 results in an annular groove with the

00613 entire circumference of almost constant width. The

00614 correspond to cross-sectional dimensions of the filling piece 20

00615 those of the cavity 16 of the socket 1 of the second

00616 embodiment, so that after inserting the

00617 socket 1 in the plug receptacle 11, the filler 20th

00618 completely immersed in the cavity 16, the

00619 end face 5 of the socket 1 against the plug

00620 part 14 supports. 00621

00622 The brackets 21 for the tab 12 are in

00623 cross section rectangular, the flat plug receptacles 6

00624 adapted and non-conductive. This bracket

00625 gen 21 carry the flat connector 12 on the front

00626 Transitional area between bracket 21 and flat plug

00627 12, a centering lug 22 is attached to the holder 21.

00628 forms which, when inserted, into a corresponding

00629 corresponding recess 23 between the flat plug opening 00630 would take 6 and the clamping sleeve 8 arranged intermediate wall

00631 24 for centering the flat plug. 00632

00633 The length of the holding device measured in the direction of insertion r

00634 gen 21 corresponds approximately to the distance between the floor

00635 17 of socket 1 and the clamping sleeves 8. 00636

00637 on the insertion side, the housing 13 of the electrical appliance

00638 connector 9 a the locking cam 18 during the insertion process

00639 against the compression spring 19 shifting bevel

00640 25 on. 00641

00642 The locking cam 18 takes place in the clutch position according to

00643 FIG. 13 receptacle in a bore 26 on the housing side

00644 deε Elektrogeräteεteckerε 9. The compression spring

00645 19 locking cams 18 displaced into this bore 26 prevent

00646 changes an unwanted removal of the socket 1 from the

00647 electrical appliance plug 9. 00648

00649 The resolution of the coupling is

00650 example only possible with emphasis on the will. The

00651 electrical device connector 9 on a probe element 27. Latest-

00652 res is on the housing 13 in the area of the insertion side

00653 on the upper, more weakly curved, through the

00654 molded line K3 formed outer surface. The

00655 electrical device 10 has the actuation of the button

00656 menteε 27 enabling cut-out 28. The transition

00657 rich between the housing 13 and 27 is at

00658 one-piece design resilient, this example.

00659 by thinning the material in the transition area.

00660 the inside of the pushbutton element 27 is a downward

00661 d. H. in the direction of the bore 26 of the housing 13

00662 pointing release finger 29 molded. 00663 00664 To release the plug connection, the push button 27

00665 depressed, so that a tilting of the probe element

00666 27 together with the release finger 29, which is

00667 free end of the release finger 29 the locking cam 18th

00668 back against the spring force of the compression spring 19

00669 shifted that the locking cam 18 from the area of

00670 housing bore 26 occurs. After that is the subtraction of the

00671 socket 1 enables. 00672

00673 This design of the trigger safeguard is particularly

00674 re desired for electrical devices that during the

00675 are mobile, such as vacuum cleaners, lawn

00676 mower or the like. With a connector

00677 without latching, the plug-in

00678 doεe 1 are involuntarily removed, which is

00679 is not desirable for reasons of safety. 00680

14 to 16 show the socket 1 of the second

00682 embodiment in connection with an electrical appliance

00683 connector 9 of a third embodiment. This elec-

00684 trooper connector 9 differs from that

00685 previously described connector in that no

00686 filler 20 is provided. Rather, the holding

00687 stanchions 21 of the flat plug 12 directly on the plug

00688 part 14 arranged. These brackets 21 are

00689 lengthwise by the amount of the filler thickness

00690 enlarged so that after a postponement of the

00691 socket 1 on this electrical appliance plug 9 according to

00692 Fig. 16 gives the same position as in the previous one

00693 described exemplary embodiment according to FIG. 13. Here

00694, however, the socket 1 is based only in the area

00695 of its end face 5, which - due to the training -

00696 fertilizer of cavity 16 - only collar-shaped

00697 det is on the connector part 14. 00698 00699 Another, third embodiment of the socket 1

00700 is shown in FIGS. 17 to 19. These

00701 differs from the second embodiment in the

00702 Execution of the spring-loaded cam cam 18. Here

00703 there is no compression spring loading the cam cams 18

00704 see. Rather, it is so that the cam cam one

00705 from the housing jacket of the insertion area A

00706 cut spring leg 30, on which the

00707 locking cam 18 is directly molded. One in impressions

00708 direction provided below the locking cam 18

00709 free space 31 gives the locking cam 18 the space for spring

00710 the dodge. 00711

00712 Next is a circular cross section, in the bottom 17

00713 rooting and projecting beyond the end face 5

00714 control pin 32 is provided, which - related to the

00715 total cross-section of the insertion area A- middle between

00716 see tab receptacles 6 approximately at the intersection of

00717 axes x and y is positioned. With the help of this

00718 control pin 32 can for example be in the electrical appliance

00719 plug, in particular in the area of the plug part 14

00720 arranged switch or the like and

00721 are actuated to trigger a pulse or

00722 Switching on or off of electrical or electronic

00723 see assemblies. 00724

00725 All disclosed features are essential to the invention.

00726 In the disclosure of the application, the

00727 disclosure content of the associated / attached priori

00728 full documents (copy of pre-registration)

00729 included, also for the purpose of characteristics of this

00730 documents in claims of the present application with

00731 record. 00732

Claims

00733 CLAIMS 00734

00735 1. Socket (1) for an electrical device (10) with at least

00736 at least two tab receptacles (6), the plug-in

00737 se (1) in cross section perpendicular to the direction of insertion

00738 (r) out of round, with one of the largest dimensions

00739 axis of symmetry (x) is formed, thereby

00740 characterized that a transverse to the axis of symmetry (x)

00741 division axis (y) runs such that the cross section

00742 above and below the division axis (y) of one

00743 convex line of curvature (Kl and K2) is limited, whereby

00744 both curvature lines (Kl and K2) are essentially circular

00745 are section-shaped, with different radii (Rl

00746 and R2). 00747

00748 2. Socket according to claim 1 or in particular according thereto,

00749 characterized in that one of the two over-

00750 corridors (U) of the different circular lines (cl

00751 and K2) given cross-sectional dimension (b) clearly

00752 is larger than a maximum dimension perpendicular to this

00753 (c) of the cross section. 00754

00755 3. Socket after one or more of the previous

00756 the claims or in particular according thereto, thereby

00757 records that the tab receptacles (6) in relation

00758 on a connecting line (y) between the transition

00759 are (U) asymmetrical, namely to the cross-sectional

00760 section with the more curved outer line (K2)

00761 are offset. 00762

00763 4. Socket after one or more of the previous

00764 according to the claims or in particular according thereto,

00765 shows that the socket (1) one over its outer

00766 surface projecting locking cams (18), which 00767 perpendicular to the extension of the tab receptacles

00768 (6) is resilient. 00769

00770 5. Socket after one or more of the previous

00771 according to the claims or in particular according thereto,

00772 records that the locking cam (18) on the weaker

00773 curved outside is arranged. 00774

00775 6. Socket after one or more of the previous

00776 the claims or in particular according thereto,

00777 records that the locking cam (18) approximately in the middle of the

00778 flat connector receptacles (6) is aligned. 00779

00780 7. Socket after one or more of the previous

00781 according to the claims or in particular according thereto,

00782 records that cross-sectionally between the two

00783 flat plug receptacles (6) a round plug receptacle (7)

00784 is formed. 00785

00786 8. Socket after one or more of the previous

00787 the claims or in particular according thereto, thereby

00788 records that when training the socket (1) without

00789 a protective contact, the circular connector (7)

00790 is conductive. 00791

00792 9. Electrical appliance plug (9) with a plug receptacle

00793 (11) and an adapted socket (1), the

00794 plug receptacle (11) and the socket (1) in the transverse

00795 cut perpendicular to the direction of insertion (r) out of round, with

00796 a symmetry extending through the largest dimension

00797 axis (x ', x) are formed, characterized in that

00798 that a division axis transverse to the axis of symmetry (x ', x)

00799 (y ¹ , y) runs such that the cross section is above

00800 and below the division axis (y ¹ , y) of one

00801 convex KrüiTuTungslinie (K3, K4 and Kl, K2) limited 00802, with both lines of curvature (K3, K4 and Kl, K2) in

00803 are essentially circular, with different

00804 were radii (R3, R4 and Rl, R2).