DE102013205046A1 - Universal key - Google Patents

Abstract

The invention relates to a universal key with a plurality of key arms (3, 4, 5, 6) extending from a central central part (2), on which tool heads and / or holding devices for attaching separate tool heads are arranged. The object of the invention is to enable the type and size of different tool heads to be multiplied with little technical effort. This is achieved with various additional tool heads, which are either guided in the inner profile of a stationary tool head or on the outer profile of a stationary tool head, it also being possible to combine the two systems.

Description

The invention relates to a universal key, for example a control cabinet key, with a plurality of key arms extending from a central middle part, on which tool heads and / or receiving devices for attaching separate tool heads are arranged.

In a known control cabinet key of the type mentioned ( DE 202 16 931 U1 ) four arms are provided in the manner of a cross key. The key arms are formed at their outer ends as tool heads of various types. Individual tool heads can also be fitted with adapters that serve to receive a bit.

Although such key cabinet keys have proven themselves in practice, but the number of tool heads is limited in these.

To increase the number of tool heads, for example, a cross key ( DE 20 2009 005 858 U1 ), which at the ends of the key arms revolver-like rotatable elements having tool heads of different types and sizes at their opposite ends. However, such a cross key is relatively expensive.

The invention has for its object to provide a universal key that allows a multiplication of the type and size of different tool heads with little technical effort.

• 1.
• – Es ist mindestens an einem der Schlüsselarme ein stationärer Werkzeugkopf mit einem Innenprofil angeordnet;
• – in dem Innenprofil ist ein innerer Zusatzwerkzeugkopf axial verschieblich und nicht drehbar geführt;
• – der Verschiebungsweg des Zusatzwerkzeugkopfs ist zwischen zwei Extrempositionen begrenzt, und zwar zwischen einer inaktiven Position, in der er in das Innenprofil des stationären Werkzeugkopfs hinein verschoben ist und einer aktiven Position, in der er nach außen über das Innenprofil des stationären Werkzeugkopfs hinaus vorsteht.
• 2.
• – An mindestens einem der Schlüsselarme ist ein stationärer Werkzeugkopf mit einem Außenprofil angeordnet;
• – auf dem Außenprofil ist ein äußerer Zusatzwerkzeugkopf in Form einer Schiebehülse axial verschieblich und nicht drehbar geführt;
• – der Verschiebungsweg der Schiebehülse ist zwischen zwei Extrempositionen begrenzt, und zwar zwischen einer inaktiven Position, in der die Schiebehülse gegenüber dem Außenprofil des stationären Werkzeugkopfs zurückversetzt ist, und einer aktiven Position, in der sie über das Außenprofil des stationären Werkzeugkopfs hinaus vorsteht.

According to the invention, this object is achieved in two ways:

• 1.
• - It is arranged at least on one of the key arms, a stationary tool head with an inner profile;
• - In the inner profile of an inner auxiliary tool head is axially displaceable and not rotatably guided;
• - The displacement of the additional tool head is limited between two extreme positions, between an inactive position in which it is displaced into the inner profile of the stationary tool head and an active position in which it projects outwardly beyond the inner profile of the stationary tool head.
• Second
• - At least one of the key arms a stationary tool head is arranged with an outer profile;
• - On the outer profile, an external additional tool head in the form of a sliding sleeve is axially displaceable and not rotatably guided;
• - The displacement of the sliding sleeve is limited between two extreme positions, between an inactive position in which the sliding sleeve is set back relative to the outer profile of the stationary tool head, and an active position in which it protrudes beyond the outer profile of the stationary tool head addition.

Accordingly, in the case of the two different systems, the additional tool heads are displaceable and not rotatable in the inner profile of a stationary tool head and are mounted displaceably and non-rotatably on the outer profile of a stationary tool head.

In addition, it is also possible to combine the two systems on a single wrench arm with each other, wherein at least one of the stationary tool heads both an inner auxiliary tool head and an outer auxiliary tool head is arranged in the form of a sliding sleeve.

Thus, if, for example, four key arms are provided in the manner of a cross key in the universal key according to the invention, then three variants are possible on each key arm, namely firstly the stationary tool head itself, secondly the outer displaceable tool head and thirdly the displaceable inner auxiliary tool head.

In this way, twelve different tool heads can thus be mounted with little effort in a cross-key.

To limit the displacement paths of the additional tool heads may be provided in each case a pin-slot guide.

To facilitate handling, the inner and outer auxiliary tool heads are preferably biased toward their active positions by means of a compression spring so that they always assume their operating positions. If, for example, the stationary tool head is in demand, the additional tool heads automatically slide back when they are inserted onto the element to be actuated.

In the case of the inner auxiliary tool heads, the respective pressure spring is expediently abutted against its inner end side.

When designed as sliding sleeves outer auxiliary tool heads, the respective compression spring is appropriate against the seated on the sliding sleeve pin of the pin-slot guide.

The pins of the pin-slot guides are preferably designed as dowel pins, on the one hand sit in a bore of the respective additional tool head and on the other hand engage in an arranged in the respective stationary tool head, axially extending longitudinal slot, wherein the slot length limits the displacement path of the respective additional tool head.

With the measures according to the invention, various tool head profiles can be realized. In this case, the inner profile of the stationary tool head can be an internal tappet, a square socket, a hexagon socket or the like. As an outer profile of the respective stationary tool head, an external striking, an external square, an external hexagon, a double-bit profile or the like may be provided.

The inner profile of the sitting on the stationary tool head sliding sleeve is adapted to the outer profile of the stationary tool head.

The additional tool heads can have a wide variety of profiles. For example, the outer sliding sleeve can be provided at its active, serving as an additional tool head end with two offset by 90 ° to each other Innenvierkantprofile different sizes, whereby the number of possible variations is still increased.

The invention is illustrated by way of example in the drawing and described in detail below with reference to the drawing. Show it:

1 : An embodiment of a cross-key, on whose arms different variations of the tool heads are shown, and

2 : an enlarged view of a detail 1 ,

In 1 is a cross key 1 shown at the four of a central part 2 outgoing key arms 3 . 4 . 5 . 6 are provided.

Each of the four key arms carries at its outer end a stationary tool head, which has the appropriate features for the intended application.

The key arm 3 is, for example, with an indoor clerk 7 provided, the key arm 4 with a double-barb profile 8th , the key arm 5 with an external square 9 and the key arm 6 again with an interior dancer 10 , which could be formed but also easily as a square or hexagon.

The key arm 3 , the one with an indoor clerk 7 is provided carries an inner additional tool head in the form of a triangular sliding sleeve 11 , the form-fitting in the internal striking 7 of the key arm 3 fits and is guided in this longitudinally displaceable. Due to its triangular training is the sliding sleeve 11 simultaneously fixed in the direction of rotation.

The displacement path of the triangular sliding sleeve 11 is limited between two extreme positions, namely between an inactive position, in which they are in the internal detracting 7 is moved into it, and an active position in which they are outward on the inside 7 protrudes beyond.

To limit the displacement of the triangular sliding sleeve 11 serves a pin-slot guide. This is in the key arm 3 on opposite sides one slot each 12 provided while the triangular sliding sleeve 11 a continuous transverse bore 13 having. If the triangular sliding sleeve 11 in the indoor dance 7 is inserted from the outside through the slot 12 and the transverse bore 13 a tension pin 14 stuck in the slot 12 in the longitudinal direction of the key arm 3 can slide, thereby guiding the triangular sliding sleeve in the internal striking between the two extreme positions.

In addition, between the middle part 2 and the inner end of the triangular sliding sleeve 11 a compression spring 15 provided that the triangular sliding sleeve 11 permanently in their active position, in which they are out of the internal dance 7 of the key arm 3 stands out, pushes. In this position is serving as an additional tool head triangular sliding sleeve 11 operational. If, on the other hand, the internal detractor 7 be used as a tool head, so will the key arm 3 placed on the corresponding workpiece, resulting in the triangular sliding sleeve 11 automatically against the pressure of the spring 15 moving inwards to their inactive position.

The key arm 4 , with a stationary tool head in the form of a double-bit profile 8th is formed, is with an outer sliding sleeve 16 combined. The sliding sleeve 16 is longitudinally displaceable on the key arm 4 stored and due to the double bit profile 8th secured against rotation. Also the sliding sleeve 16 is back and forth between two extreme positions, wherein the limitation of the sliding path means in the key arm 4 provided longitudinal slots 17 in which a tension pin 18 is guided, is effected. The tension pin 18 extends through a in the outer sliding sleeve 16 provided transverse bore 19 as well as in the longitudinal slots 17 therethrough. Inside the key arm 4 between the middle part 2 and the dowel pin 18 is a compression spring 15a provided that the outer sliding sleeve 16 always in its active position.

As in particular from 2 shows, the sliding sleeve 16 an inner profile at the end of work 20 on, which has two mutually offset by 90 ° Innenwierkantprofile different sizes.

At the key arm 5 whose tool head is in the shape of an external square 9 are the two different systems that are related to the key arms 3 and 4 are described combined.

In the key arm 5 is similar to the key arm 3 a longitudinally displaceable inner part 21 provided, the Hubbegrenzung means in the key arm 5 on opposite sides provided longitudinal slots 22 and one through this and one in the inner part 21 provided transverse bore 24 extending clamping pin 23 is effected.

As with the arrangement within the key arm 3 is also in this embodiment, the inner part 21 by a compression spring 25 burdened, which is against the bottom of the inner part 21 supports and always pushes this into its active position.

Outside on the trained as a square key arm 5 is also designed as a square sliding sleeve 26 longitudinally displaceable and rotatably guided. The stroke limitation of the sliding sleeve 26 takes place just as with the key arm 4 by means of on both sides of the key arm 5 formed longitudinal slots 27 as well as a tension pin 28 that goes through one in the sliding sleeve 26 provided transverse bore 29 as well as the slots 27 extends.

Also the sliding sleeve 26 can be pressed by means of a compression spring, not shown in the drawing in its working position, wherein the compression spring between the middle part 2 and the dowel pin 28 can be arranged.

The key arm 6 , whose stationary tool head according to the drawing is an internal tappet, serves in the illustrated embodiment for receiving an adapter 30 , in the one bit with any working end, such as a screwdriver bit in a corresponding receiving opening 31 can be used.

As can be seen from the drawing, there are therefore various possible variations for the embodiment of the universal key according to the invention.

If all four key arms the example of the key arm 5 have illustrated triple combination, the universal key can unite twelve different tool heads in itself.

LIST OF REFERENCE NUMBERS

1

 cross keys

2

 midsection

3

 key arm

4

 key arm

5

 key arm

6

 key arm

7

 Inside Triangular

8th

 Double-bit profile

9

 Outside Square

10

 Inside Triangular

11

 inner triangular sliding sleeve

12

 longitudinal slots

13

 cross hole

14

 dowel pin

15

 compression spring

15a

 compression spring

16

 outer sliding sleeve

17

 longitudinal slots

18

 dowel pin

19

 cross hole

20

 internal profile

21

 inner part

22

 longitudinal slot

23

 dowel pin

24

 cross hole

25

 compression spring

26

 sliding sleeve

27

 Längsschlitz4

28

 dowel pin

29

 cross hole

30

 adapter

31

 receiving opening

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 20216931 U1 [0002]
• DE 202009005858 U1 [0004]

Claims (15)

Universal key with more than one central part ( 2 ) outgoing key arms, on which tool heads and / or receiving devices for attaching separate tool heads are arranged, characterized in that at least on one of the key arms ( 3 ) a stationary tool head with an inner profile (Innenendreikant 7 ) is arranged, that in the inner profile of an inner additional tool head (triangular sliding sleeve 11 ) is axially displaceable and non-rotatably guided and that the displacement travel of the additional tool head is limited between two extreme positions, between an inactive position in which it is displaced into the inner profile of the stationary tool head and an active position in which it is outwardly over the inner profile of the stationary tool head projects beyond. Universal key according to claim 1, characterized in that for limiting the displacement path of the inner auxiliary tool head, a pin-slot guide is provided. Universal key according to claim 1 or 2, characterized in that the additional tool head in the direction of its active position by means of a compression spring ( 15 ) is biased. Universal key according to claim 3, characterized in that the compression spring ( 15 ) against the inner end face of the additional tool head (triangular sliding sleeve 11 ) is present. Universal key with more than one central part ( 2 ) Outgoing key arms to which tool heads and / or recording means are arranged for attaching a separate tool heads, characterized in that (at least at one of the key arms 4 ) a stationary tool head with an outer profile (Doppelbartprofil 8th ) is arranged that on the outer profile an outer additional tool head in the form of a sliding sleeve ( 16 ) is axially displaceable and non-rotatably guided, that the displacement of the sliding sleeve ( 16 ) is limited between two extreme positions, namely an inactive position in which the sliding sleeve ( 16 ) is set back relative to the outer profile of the stationary tool head, and an active position in which it protrudes beyond the outer profile of the stationary tool head. Universal key according to claim 5, characterized in that for limiting the displacement path of the sliding sleeve ( 16 ) a pin-slot guide is provided. Universal key according to claim 6, characterized in that the sliding sleeve ( 16 ) towards its active position by means of a compression spring ( 15a ) is biased. Universal key according to claim 7, characterized in that the compression spring ( 15a ) against the on the sliding sleeve ( 16 ) sitting pen ( 18 ) abuts the pin-slot guide. Universal key according to claim 2 or 6, characterized in that the pin of the pin-slot guide a dowel pin ( 14 ; 18 ). Universal key according to claim 1 and 5, characterized in that at least one stationary tool head both an inner auxiliary tool head (inner part 21 ) as well as an external additional tool head (sliding sleeve 26 ) is arranged. Universal key according to claim 1, characterized in that the inner profile of the stationary tool head is an internal tappet, a square socket, a hexagon socket or the like. Universal key according to claim 5, characterized in that the outer profile of the stationary tool head is an external striking, an external square, an external hexagon, a double-bit profile or the like. Universal key according to claim 12, characterized in that the inner profile of the seated on the stationary tool head outer sliding sleeve is adapted to the outer profile of the stationary tool head. Universal key according to claim 13, characterized in that the outer sliding sleeve ( 16 ) at its active, serving as an additional tool head end two offset by 90 ° to each other Innenvierkantprofile (inner profile 20 ) of different sizes. Universal key according to one of claims 1 to 14, characterized in that four key arms ( 3 . 4 . 5 . 6 ) are provided in the manner of a cross key.

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