DE2038508A1 - Electrical safety socket - Google Patents

Description

Dipl-Ing. H. Lamprecht

t Munich 5

C «rn * l! Uisti * e 42

Adolf Feller AG Horgen (Zurich, Switzerland)

Electrical safety socket

The present invention relates to an electrical safety socket with a movable locking plate, the between the insertion end of two sockets and a cover provided with openings for plug pins is arranged and only through the simultaneous insertion of two plug pins into a 'releasing the two sockets' Position can be moved against the influence of a spring.

Safety sockets of the type described are already known in numerous designs. she have the advantage that simply inserting a plug pin or another pin-shaped or wire-shaped object into one of the sockets is effectively prevented by the locking plate. Among the known designs there are there are those in which the locking plate to release the plug-in

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both have a bicomponent movement in the direction of the longitudinal axes the sockets as well as a movement component transversely to do this muse · This requires a relatively large one Overall height of the socket in the direction of the slower sockets. In other known designs, the locking plate has to release the two sockets at the same time or to execute two different components of movement one after the other in one plane »the one at right angles to the slow ones the sockets runs. In this case, the locking plate can be flat against the sockets on its side a solid support surface and be guided in a sliding manner on this support surface · This solution offers the advantage a lower overall height of the socket compared to the aforementioned Bart design.

The object on which the present invention is based consists in improving a safety socket of the last-mentioned type in this sense even further » that the locking plate is no longer in two different directions of movement Must be movable, but only a predetermined sliding or pivoting movement in one to execute the longitudinal axes of the sockets in a right-angled direction and is therefore "more reliable.

The stated object is achieved with the inventive electrical safety outlet for mainly characterized in that the faces of the cover side of the barrier plate has two oblique, Steckbuchsen'Wenigstens approximately with respect to the direction of movement of the lock plate same intimately · inclined sliding surfaces and ¹ two dex to the Längsaxen perpendicular running blocking surfaces have »each one of the crooked. Sliding surfaces' are assigned, whereby the one blocking surface is at the lower end of the first, inclined sliding surface and the other blocking surface is on the higher

1 O ¹ 9 ii 1>, '1 1 3 6

lying end of the second inclined sliding surface "is located and the arrangement is such that in the blocking rest position of the blocking plate behind a first passage opening of the cover only the first inclined sliding surface and behind a second passage opening only that of the second inclined sliding surface Sliding surface assigned blocking surface is that in an intermediate position between the said rest position and the Sockets releasing end position of the locking plate behind the first passage opening of the cover alone that of the first inclined sliding surface assigned to the blocking surface and |

behind the second passage opening is only the second inclined sliding surface, and that in which the sockets releasing end position of the locking plate, the lower end of the second inclined sliding surface tangential to the second The passage opening of the cover plate is located, while the blocking surface assigned to the first inclined sliding surface is located located entirely outside the area of the first passage opening.

In a preferred embodiment of the invention Socket, the locking plate is mounted pivotably about a pivot axis parallel to the longitudinal axes of the sockets, the inclined sliding surfaces as screw surface cutouts could be trained. The axis of rotation of the lock ™ The plate can be the longitudinal axis of a third socket that is used to connect a protective grounding conductor and therefore does not need to be covered by the locking plate. In another embodiment of the invention However, the socket outlet can be a linearly movable slide.

Other features, details and advantages of the Safe ^ unit socket according to the invention result from the '

1 0 8 ίΠ 2/1 1 3 6

Proverbs, from the following description of exemplary embodiments and from the accompanying drawings, in which the Subject matter of the invention is illustrated purely by way of example.

Fig. 1 shows in a slightly schematic representation in connection with the invention essential parts of a first embodiment of the socket according to the invention in section and partially a pair of plug pins at the beginning of their insertion into the socket;

lig · 2 is one to Pig. I analog representation at more advanced introduction of the connector pins {

Pig * 3 is also a similar representation with even more advanced insertion of the connector pins j

Fig. 4 shows a plan view of a second embodiment the socket}

Fig. 5 shows the same socket with the removed Coverι also in plan view;

Fig. 6 is a cross-section along the line VI-VI in Fig. 4 {

Fig. 7 shows a plan view of the rotating member trained locking plate of the socket according to FIGS. 4 to 6 on a larger scale.

The safety socket shown in Fig. 1 has two sockets made of electrically conductive material 11 and 12 on »those for the inclusion of likewise electrically conductive connector pins 13 and 14 are intended. At some distance from the insertion end of the sockets 11 and 12 is a plate-shaped cover 15, which may be part of the socket housing, not shown in the rest. The cover 15 has two passage openings

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16 and 17, which are axially aligned with the sockets 11 and 12 are arranged and allow the passage of the connector pins 13 and 14. Between the insertion end of the sockets 11, 12 and the cover 15 are a fixed intermediate plate · 18 and a locking plate movably guided on the latter 19 arranged. The one applied by the sockets 11 and 12 Side of the intermediate plate 18 forms a flat support surface 20 against which the locking plate 19 rests. the Support surface 20 extends at right angles to the longitudinal,

axes of the sockets 11 and 12 ″, the intermediate plate 18 points two openings 21 and 22 which allow access of the plug pins 13 and 14 to the sockets 11 and 12.

The locking plate 19 is designed as a slide which is guided in a straight line according to the arrow A by guide parts (not shown) in a direction which intersects the longitudinal axes of the sockets 11 and 12 at right angles. A spring, not shown, urges the locking plate against the arrow A into the rest position according to FIG Breakthroughs 21 and 2? cover the intermediate plate 18 in order to prevent the insertion of the LJbeckerstifte 13 and 14 into the sockets 11 and Κ '. I) iο locking plate part 19a has on its side facing away from the teckbuchaen 11 and * \ 2 a first inclined (! Guide surface 23 and an associated surface area? 4. The latter runs at right angles to the LHn ^ r ₁ HAiUi der iJteckbuohijen 11, 1? and is right on the ', i ef α ι LL miserable linden tree do r nehi efen sliding surface ί-3, opposite di'. 'iü-r. "» tui'enarti ^: -. n moved sju \ .: ^r , I. ijan from the Ii Iu i. tf Lüche \ 'j atif.nv / ari'i ti, - iuui «, - ',", d («r liporrfläohf. · i'4 rnir.hl tiöohji teruj

BATH ORIGINAL

except for an imaginary extension 26 of the inclined sliding surface 23 »which has a constant inclination. The locking plate portion 19b has a second inclined sliding surface 27 and one this associated blocking surface 28. The sliding surface 27 is inclined in the same sense and has the same constant , slope like the first inclined sliding surface 23. The blocking surface 28 again runs at right angles to the longitudinal axes of the Steek sockets 11 and 12, but in contrast to the locking plate part 19a to the higher end of the

Between the two parts 19a and 19b, the locking plate 19 is perforated at! Likewise the locking plate 19 is perforated at the lower end of the second inclined sliding surface 27 at 30.

The two described locking plate parts 19a and 19b are arranged in relation to one another in such a way that in the rest position of the locking plate 19 »as shown in FIG. 1, behind the one passage opening 16 of the cover 15 only the first inclined sliding surface 23 of the locking plate part 19a and behind the other passage opening 17 of the cover only the blocking surface 28 of the blocking plate section

fe 19b lies. More details about the training and arrangement the locking plate parts 19a and 19b can be best understood in the course of the following explanation of the usage and Recognize the mode of operation of the socket described.

When the blocking plate 19 is in the rest position according to FIG. 1, it blocks access to the Steek sockets 11 and 12 against unipolar contact. If, for example, only the El teckeratifb 14 i η it 1 ti l> u rc h 1 as 8 ö ff η ung 17 of the cover 19 is introduced, the leading end of the Γ »tuckerstif teu 14 hits the blocking area L ¹ H. i) a (reads; locks "laugh parallel to the Vt tu ti .; Π borrowed ί'Ό the Zwioohenplatte IH and parallel i'.ur Ver ach U; b * 'T i eh do / ·; A the iiporrp la t, te l ·) ii> t, bit; gives you the latter

^BATH

at rest, and access to socket 12 remains blocked If, on the other hand, only the plug pin 13 is inserted into the passage opening 16, the preceding end of the Plug pin 13 against the inclined sliding surface 23, whereby a movement of the locking plate 19 in the direction of arrow A. is effected while the plug pin 13 is pushed deeper into the socket · The inclined sliding surface slides 23 away under the plug pin 13, after which the latter is seated on the locking surface 24, which prevents the insertion of the plug pin 13 in the socket 11 prevented. When pulling out the Plug pin 13 from the passage opening 16 reverses the The locking plate returns to its original and rest position under the influence of the mentioned, not shown spring.

However, if the two connector pins 13 and 14 are guided at the same time into the associated passage openings 16 and 17 of the cover 15, the one plug pin causes 13 in cooperation with the first inclined sliding surface 23, a displacement of the locking plate 19 in the direction of the arrow A into a certain intermediate position, which is shown in FIG. 2 and in which the second inclined sliding surface 27 comes to lie behind the opening 17 in the cover · At this moment the second connector pin 14 moves against the second inclined sliding surface 27, whereupon the further insertion of the connector pins 13 and 14 through the interaction of the plug pin 14 and the second sliding surface 27, the locking plate 19 is moved further in the direction of the arrow A. becomes · This results in an intermediate position of the Blocking plate 19, in which behind the passage opening 16 of the cover 15 only the blocking surface 24 and behind the Passage opening 17 alone is the second inclined sliding surface 27. However, the locking surface 24 moves under the Plug pin 13 away without inserting the plug pins

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to hinder · After the locking plate 19 is the one shown in FIG. Has reached the position, the connector pin slides from the lower end of the second inclined sliding surface '27'.ab _{f to} get into the area of the perforated point 30 of the locking plate while at the same time the connector pin 13 is at the outermost end 25 of the locking surface 24 'moves past, and then 29 of the lock plate enters the area of the broken point * the lock plate .. 19 ^"another: little further pushed in clearing of the arrow a in their the sockets completely releasing end position, 13 and 14 allow the .Stookerstifte afterwards · unhindered through the openings 21 and 22 of the intermediate plate · 1-8 '· and insert into the sockets 11 and / l 2 ...'"''

From the above it can be seen that the simultaneous' introduction of the two connector pins 13 and 14, the locking plate 19 in two successive identical directions Movement steps from the locking rest position into the end position releasing the plug sockets 11 and 12 is, wherein the first movement step by the interaction of a plug pin 13 with the first inclined 'sliding surface 23 and the second movement step by the fact that the other connector pin 14 cooperates with the wide oblique sliding surface 27. In each of the two movement steps, the inclined sliding surface 27 or 23 that is not in action slides associated blocking surface 28 or 24 under one of the connector pins 13 and 14, without hindering its advance movement.

The above-described simultaneous insertion of the two connector pins 13 and 14 into the socket takes place especially if there is no noticeable step between the two

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mentioned movement steps of the locking plate 19 »if it is ensured that in the intermediate position according to Pig. 2 the lower end portion of the first inclined sliding surface 24 and the higher end portion of the second inclined Sliding surface 27 are located at the same time behind the associated passage openings 16 and 17 of the cover 15.

When both pins 13 and 14 are out of the socket are pulled out, the locking plate 19 reverses under the influence of the associated (not shown) spring the arrow A in the locking Euhelage according to FIG. 1 back. "

The second embodiment of the safety socket shown in FIGS. 4 to 7 basically has same structure and operating principle as described above. However, some details are different, which are set out below. As far as it is a question of matching components or design features is, the same reference numerals as in Figs. 1 to 3 are used.

According to FIGS. 4 and 6, the second embodiment of the socket outlet has a housing 100 with a plate-shaped cover Vj . The latter is with the two passage openings 16 and 17 for the .3!, Corner pins 13 and 14 and with a ύ

Additional passage opening 101 for a (not shown) fichutüerdungsstift on the cooperating with the socket is provided. The additional through-Jafsr-iöfΓηαη ^ 1υ1 has two openings 16 and 17 al *; £ Lvleim distance and int so arranged that the Zont.rf.n dor drM ijurohlaursöffnungen 10, 17 and 1o1 ran on the br-kon of an imaginary ^ I e iehijchenkligen triangle. Ι .uiciinxlf 'ν, · ιΓ ν, \ χνλϊ \. · / Λ ichon wurchlao .-. Öfl'nun // 1ü1 is Lm Ge \ ύί'ί'ΛΗ 1; -0 one;>; iiut /; erdunf ; i>:;teckbuchr; e λκι? an ^ eurdne t, 'lcvLii ijan,;:; ay. ·· parallel to the I, än ^:.; axes of the two plug-in connectors 11 uri'i 1 i "" .ur receptacle «-' of the V, teckerfjtifte 1; ί and 14 vex * runs.

BAD ORIGINAL 10 1136

Isss the insertion ends of the sockets 16 and 17 upstream of the intermediate plate 18 has vegetable FIGS. 5 and 6 in the region of the protective grounding socket 102 has a staircase-.stufenartig offset portion 118 'because the axial length of the protective grounding receptacle 102 is larger than that of the two sockets 16 and 17 In addition , a cylindrical extension 103 is formed on the offset part 118, which protrudes against the cover 15 and has an axial bore 104 which is arranged coaxially with the passage opening and the protective earthing socket 102.

While in the first embodiment, the lock plate

19 was designed as a linearly movable slide , a locking plate 119 designed as a rotary member is present in the second embodiment , which is rotatably mounted on the cylindrical port set 105 of the intermediate plate 18, 118 and can thus be pivoted about the longitudinal axis of the protective earthing socket 102. The locking plate 119 has two radially protruding wings 119a and 119b, on the support surface

20 of the intermediate plate 18 slide and analogously; the locking plate parts 19a and 19b of the first embodiment are formed, as can be seen particularly clearly in FIG. Accordingly, the one wing 119a is provided with a first inclined sliding surface 3 and a blocking surface 24 associated with it, which is located at the lower end of the sliding surface 23, set back in a step-like manner relative to this. The other flight L 119 ^. weeps an aw I te inclined sliding surface 1'7 and an interlocking surface £ "3 assigned to the star, which adjoins the higher legend end of the inclined sliding surface 2" 7.

L) i υ ixihle f'i'ii (J 1 cit flat ο and Ί '{ are excerpts ο from screwsi.Uu.:hun with üuroinri ti Kirnend tit Uv igiaigGt; inn and, g L f: i. Cht; ru L t; 1.1 ,; η ι g. [Η ei ti t ^a 11 krei ι; b (γ; c π 1 " ö rwi L e" ent! Arj;:; dt ^ι r l.iniu l- {In ru ;. Y led cut have the Flüffl 1 1'la and 11 ^l .) H ₍ ; uiiuu di>'equals; Forni like J ie iJperr {> l: it Len-

BATH ORIGINAL 1 night, 'ι? 6th

parts 19a and 19b in the sectional view according to FIG.

The locking plate 119 is under the influence of a leg spring 105 (FIGS. 5 and 6) which is mounted on a pin 106 the intermediate plate 18 is supported and engages in an eye 107 of the locking plate 119. The spring 105 strives to hold the locking plate 119 in the locking rest position shown in Fig. 5, in which the one wing 119a in front the socket 16 and the other wing 119b in front of the socket 17 lies.

If two connector pins of a connector are inserted into the passage opening 16 and 17 of the cover 15 at the same time, the connector pins successively cause two successive movement steps of the locking plate 119 by working together with the inclined sliding surfaces 23 and 27, this counter to the influence of the spring 105 according to the arrow B in Fig. 7 is pivoted until the wings 119a and 119b assume a position exposing the sockets 16 and 17 and the plug pins can be inserted into these sockets. The process is exactly the same as was explained with reference to FIGS. 1 to 3 for the first embodiment. Subtracting the plug from the socket, the pivotally mounted locking λ plate 119 returns to its blocking starting and rest position under the influence of the spring 105th

If, on the other hand, you try only a single connector pin or a similar object through one of the openings and 17 to be inserted into the socket, this pin or similar object is blocked by the blocking surface 24 or 28 prevented from coming into contact with the relevant socket 11 or 12, thereby increasing safety against electrical accidents is increased considerably.

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The "described embodiments of the inventive safety plug -in socket had the advantage that the height required for the locking plate 19" or, 119 "in the direction of the longitudinal axes of the sockets is relatively low, since the locking plate is due to its contact with the support surface 20 of the Intermediate plate 18 cannot be brought into an inoperative position even by strong pressure of a plug pin or similar object on one of the blocking surfaces 24 and 28 and that the blocking plate 19 or 119 can only be in one position due to the simultaneous insertion of two plug pins 13 and 14 into the socket single direction, in a straight line or along an arc of a circle, at right angles to the longitudinal axes of the sockets 11 and 12. The advantageous properties mentioned ensure a hitherto unattained high and permanent operational reliability of the safety socket.

fatentenwdt

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Claims (1)

Patent attorney Dipl-Ing. H. Lamprecht ₁ , 8 Munich 5 - -> - co, n ... ü .. «,. _ß .4i ■ · "2038508 Patient relaxes early Electrical safety socket with a "movable locking plate, which is arranged between the insertion end of two socket jacks and a cover provided with passage openings for plug pins and can only be moved against the influence of a spring by simultaneously inserting two Steoker pins into a position releasing the two sockets , the blocking plate lying flat against a fixed support surface on its side facing the sockets and being movable on this support surface in a direction running at right angles to the slower side of the sockets, characterized in that the side of the blocking plate (19; 119) has two oblique sliding surfaces (25; 27) inclined in the same direction with respect to the direction of movement of the blocking plate (19; 119) and two blocking surfaces (24; 28) extending at least approximately at right angles to the longitudinal axes of the sockets (11; 12), each assigned to one of the inclined sliding surfaces (23; 27) si nd, wherein the one blocking surface (24) is located at the lower end of the first inclined sliding surface (23) and the other blocking surface (28) is located at the higher end of the second inclined sliding surface (27) and the arrangement is such that «3 in the locking position of the locking plate (19; 119) behind a first passage opening (16) of the cover (1ü>) only the first inclined sliding surface (c-3) and behind a second passage opening (17) only the blocking surface (28) assigned to the /, wide fjchiefon sliding surface (27) ^ t, daou in a Zwiachen-: - t '1 I ufifi zwifKjhen said rest position and the plug büvhuun (11y M-) releasing end position of the locking plate (19; 11'i) is behind in the first rchiansöffnung (1b) dor cover (1 ^l j) a J. J ei η die der e raten ochief en G1 ei tfläohe ( 2'5) ■> rdnete Sperri'Jäohf;('''A) and behind the second 0 '■ / 113 6 BATH ORIGINAL -H- (17) Only the second oblique sliding surface (27) "and that the Stedkbuchsen in the (11 j 12) releasing end position of the locking plate, the lower-lying end of the second oblique sliding surface (27) tangential to the second passage opening (17) of the cover plate (15 ), is located while the first oblique sliding surface (23) associated with the locking surface (24) 'of the area of the first passage opening (located entirely auBserhalb "16)". 2 «Security ο f 1 Erkd oat * narh Aiispmr Ii 1, dnfnxth marked that in « .Utrr "beo liiii en ü * j CrIi ₁ th, l _t dt r locking plate (19j 11")) elLe tj ι f fi Ii f- ^ tndt ludpeitiLf the first inclined sliding surface (* fj) and rl 1 1 lmU ( ι I ii | ι n Ii ι ndpnrtxe the. second squint on ι liitCLuliu ( (} ι ι h _t l · 11 Ii ρ ι tig behind the first, (IbI fauw. dt ι w * 11 "t- τι Dm hin <ι Iiurtf (17) of the cover (15)" are located, 3 »Safety socket according to claim 1 or 2, characterized indicated that the "he 1 deη scIiief eη G1 eitf 1 surfaces (2J; 27) have the same constant slope and the blocking surface (24) assigned to the first inclined (! guide surface (23) lies opposite the e ω titj Γ nd e η end e the first η sc Ii depth η G1 eitf 1 area (23) is set back in a step-like manner and with its end e (25) facing away from the η I- eη u chi efen G1 eitf 1 surface (2 3) up to an imaginary extension (26) of the first: B chiefe η G1 eitf 1 area (23) row. 4. Security - S tec kd ο se na chei η e m ο the in honor η the A η Proverbs 1 to 3 »characterized in that the blocking 1 a 11 e (19) Ginge wheel 1 i η ig moving 11. c he r slide bar. 1 0 y. ■: '' ■ / 1 1 3 6 20-3P508 5. Safety socket according to one or more of claims 1 to 4, characterized in that the locking plate (119) around one to the longitudinal axes of the sockets (11 j 12) parallel axis of rotation is pivotably mounted and the inclined sliding surfaces (23? 2?) as screw surface cutouts are trained. 6. Safety socket according to claim 5, characterized in that that the locking plate (119) is rotatable about the longitudinal axis of a third socket (102) which is used for connection a protective earthing conductor is intended. 7. Safety socket according to claim 5 or 6, characterized in that the locking plate (119) has the! Shape a rotary member with two wings (119a; 119b) and one of the inclined sliding surfaces on each of the wings (23j 27) and the associated blocking surface (24; 28) are present are. . Lamprecht 8 12/1136 Blank page