DE29918973U1 - Device holding device - Google Patents

Description

GRÜNECKER, KINKELDEY, ST©£fcMAU*

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LAW FIRM MAXIMILIANSTRASSE 58 D-80538 MUNICH GERMANY

German Patent and Trademark Office

Zweibrückenstr. 12
80297 Munich

LAWYERS

MUNICH

DR. HELMUT EICHMANN

GERHARD BARTH

DR. ULRICH BLUMENRÖDER, LLM.

CHRISTA NIKLAS-FALTER

DR. MAXIMILIAN KINKELDEY, LLM.

SONJA SCHAEFFLER

DR. KARSTEN BRANDT

OF COUNSEL
PATENT ATTORNEYS

AUGUST GRÜNEECKER
DR. GUNTER BEZOLD
DR. WALTER LANGHOFF

DR. WILFRIED STOCKMAIR (-1996)

PATENT ATTORNEYS EUROPEAN PATENT ATTORNEYS

MUNICH

DR. HERMANN KINKELDEY

DR. KLAUS SCHUMANN

PETER H. JAKOB

WOLFHARD MEISTER

HANS HILGERS

DR. HENNING MEYER-PLATH

ANNELIE EHNOLD

THOMAS SCHUSTER

DR. KLARA GOLDBACH

MARTIN AUFENANGER

GOTTFRIED KLITSCH

DR. HEIKE VOGELSANG-WENKE

REINHARD KNAUER

DIETMAR KUHL

DR. FRANZ-JOSEF ZIMMER

BETTINA K. REICHELT

DR. ANTON K. PFAU

DR. UDO WEIGELT

RAINER BERTRAM

JENS KOCH, M.S. (Uof PAI M.S. (ENSPM)

COLOGNE

DR. MARTIN DROPMANN

YOUR REF.

OUR REF.

G4189-829/bi DATE

28.10.1999

Applicant:

CEAG SAFETY TECHNOLOGY GmbH

Senator-Schwartz-Ring 59494 SOEST

Device holder"

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Description device holder

The invention relates to a device holding device with a device holder and at least one device housing, which is detachably fastened to the device holder by means of at least one fastening means, wherein the device holder and the device housing have openings through which the fastening means can be inserted and fastened there.

Such a device holding device is known, for example, from practice with a device holder and device housing. The device holder has a substantially flat mounting side for the device housing and a side opposite this for wall mounting, cable tray mounting, pipe mounting or the like. The device housing serves as a housing for a switch, for a button, for a plug-in device, a junction box, a terminal box or the like.

To detachably attach the device housing to the device holder, both have corresponding openings that can be aligned with each other and through which a fastening device can be inserted and fastened. The fastening device is a screw with a corresponding nut.

A device and a method for connecting by snapping are known from DE 197 02 695 C1. A first body has at least one snap-in opening and a second body is provided with a snap-in element at a corresponding connection point. The snap-in element can be designed either separately or as one piece with the second body. The snap-in element is provided with a snap-in head at its free end and with a predetermined separation point at its other end, which is severed by a mandrel after the first and second bodies have been connected, so that the snap-in can be checked.

DE 87 14 186 U discloses a fastening element for plug strips comprising a flange on the plug strip, a base element and a holding element. The base element is a cylindrical plastic body with a longitudinal bore and a thickening at one end. The holding element is a metal pin that can be pressed into the longitudinal bore of the base element. The base element also has a flange opposite its thickened end, which is in contact with the flange of the plug strip when the plug strip is fastened to a housing fastening strip.

DE 20 62 555 discloses a lockable fastening means consisting of a plug part and an expansion part. The plug part has a through hole and a thickened upset with a slot at one end. A head is formed at the other end into which the expansion wedge can be inserted. If a wedge piece at one end of the expansion wedge reaches the thickened upset, this is expanded due to the slot formed in it.

A disadvantage of the known device holders is that tools are usually required, which must be carried along for assembly. Furthermore, the fastening devices often have different sizes, so that a corresponding number of different fastening devices and suitable tools, such as wrenches, screwdrivers or the like, must be carried along. Another disadvantage is that the known fastening devices are attached from both sides of the device holder. This can lead to difficulties with device holders that are already attached to the wall, a grid or a pipe, as there is usually only limited space available for using tools to attach the fastening devices. Finally, a further disadvantage is that the fastening devices cannot be easily removed and/or reused, nor can they be easily pre-assembled on the device and in particular on the device housing.

The invention is therefore based on the object of improving a device holding device of the type mentioned at the outset in such a way that at least the device housing can be fastened to the device holder without tools and in a simple manner with little space requirement and at the same time the fastening means can be reused.

This object is achieved in connection with the preamble of claim 1 in that the fastening means has a plug pin which can be latched into the device holder opening with a locking end and which has a radial flange which, in the locking position of the plug pin, is at least partially in contact with a contact opening edge of the device housing opening, wherein the device housing opening is formed laterally on the device housing and has an insertion gap on the outside facing away from the device housing.

According to the invention, a corresponding device housing can therefore be attached in a simple manner by aligning the device housing openings with the device holder openings and then inserting a corresponding number of pins through these openings and fastening them there by snapping the locking end into place and the radial flange against the edge of the opening. No tools are required as the pins can simply be inserted and locked into place. Furthermore, the attachment can be carried out in a simple manner from one side, for example by only inserting the pins into the corresponding openings from the mounting side of the device holder. The pins are easy to handle and different device housings can be attached to the device holder or to different device holders in a quick manner. Depending on the arrangement of the corresponding openings, variable arrangements of the device housing relative to the device holder are possible. The pins are preferably made of the same or a similar material as the device housing and device holder, i.e. a plastic material. This also eliminates the need to form the previously known fastening elements from an erosion-resistant material or to protect them from erosion by further treatment.

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In order to protect the plug pin from external damage and at the same time to store it in a space-saving manner, the device housing opening is formed on the side of the device housing and the opening has an insertion gap on the outside facing away from the device housing. The plug pin can be inserted into the side wall of the device housing through this insertion gap and from there pushed through the device housing opening. This makes it possible, for example, to pre-assemble the plug pin on the device or device housing and at the same time the plug pin can be easily removed and thus in particular reusable.

In an embodiment that is easy to manufacture and use, at least two elastically radially deflectable locking legs can be formed at the locking end. These can be deflected towards each other when the plug pin is engaged and lock into place after being inserted into the device holder opening. To release the plug pin, the two locking legs can be moved towards each other and then the plug pin can be pulled out of at least the device holder opening.

In a simple embodiment, each locking leg can have a locking foot that projects radially outward beyond the locking leg at least on its upper side. Only this is guided completely through the device holder opening.

In order to simplify the insertion of the locking foot and in particular its removal from the device holder opening, the top of the locking foot can be designed with a locking bevel that engages behind a lower opening edge of the device holder opening. This particularly simplifies the release of the plug pin and the insertion of the plug pin can be simplified by the locking foot tapering towards the free end of the plug pin.

In order to easily determine how far the insertion pin can be inserted into the device holder opening, the insertion pin can have a contact flange above the locking end, which in the locking position is in contact with an upper opening edge of the device holder opening. At the same time, the contact flange can serve to

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To stabilize the plug pin in its locking position and, in principle, to form a base for the device housing in its fastening position.

The contact flange can, for example, extend radially outwards from the plug pin in places or can be formed by two or more contact flange parts protruding from the plug pin. In the simplest case, the contact flange can be designed as a contact plate that protrudes radially outwards from the plug pin and completely surrounds the plug pin.

In order to simultaneously determine the fastening position of the device housing in a simple manner, it is conceivable that the top of the support flange can be placed against a lower edge of the opening of the device housing when the device housing is in the fastening position. However, the device housing can also have separate foot projections or the like with which it stands on the device holder or the support flange.

The plug pin is best secured when the device housing opening is arranged substantially completely within the contour of the device housing and the insertion gap is formed by a corresponding gap in an outer wall of the device housing.

In order to be able to arrange the plug pin on the side of the device housing without major difficulties, the device housing opening is essentially semicircular or U-shaped.

In order to position the plug pin correctly relative to the housing holder opening on the one hand and to provide sufficient space for handling the plug pin on the other hand, it is conceivable that the device housing opening has at least one holding section and one insertion section, wherein the holding section extends from the contact opening edge to the lower end of the device housing opening, with which the upper side of the contact flange of the plug pin can be brought into contact, and the insertion section adjoins the holding section for receiving an upper end section of the plug pin on

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closes. The insertion section advantageously has larger dimensions than the holding section in order to be able to easily grip the upper end of the plug pin. The holding section is designed to be essentially complementary to the corresponding section of the plug pin which it serves to receive.

In order to be able to arrange the plug pin conveniently, the insertion section can extend in a side wall of the device housing over essentially its entire height from the holding section. The insertion section can be open at the top so that the plug pin can be guided along the insertion section to the holding section and through this in the direction of the device holder opening or can be inserted laterally through the insertion gap in the holding and insertion section.

In order to be able to insert the plug pin more easily into the device housing opening through the insertion gap, the radial flange of the plug pin can have stands on its underside facing the edge of the installation opening that protrude in the direction of the edge of the installation opening on at least two opposite sides of the plug pin. These can advantageously be designed as stand-up strips that run downwards and diagonally outwards. If these are designed to be elastic, the plug pin can also be held under tension in the device housing opening and handled together with it. It is therefore possible to insert a corresponding number of plug pins into corresponding device housing openings, which are automatically held there, and to feed these together with the device housing to the device holder.

In order to achieve a good fit and at the same time to be able to guide the plug pin well in the device housing opening, the cross-section of the radial flange can be designed to be essentially complementary to the cross-section of the insertion section.

In order to prevent the plug pin and thus the device housing from coming loose from the device holder too easily or accidentally, a plug pin can be used which has a longitudinal hole for receiving a locking pin, which is arranged with its lower end between the locking feet in the locking position.

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The locking feet can only be moved towards each other to a small extent. Only after removing the locking pin can the locking feet be moved towards each other far enough to be pulled out of the device holder opening.

In order to prevent the locking pin from being inserted too far into the plug pin and possibly protruding from its locking end, it is conceivable that the locking pin has a stop flange which rests on the top of the radial flange in the locking position. This system determines the locking position of the locking pin and thus the arrangement of its lower end relative to the locking feet.

In order to insert the locking pin together with the plug pin or separately from it through the insertion gap into the device housing opening or along it, the contact flange can have a substantially U-shaped cross-section.

In order to simplify the release of the locking pin from the locking position, the stop flange and/or the radial flange can have engagement bevels on their mutually facing sides that point outwards relative to the insertion gap. A screwdriver, for example, can be inserted into these as a tool between the stop flange and the radial flange, thereby allowing the locking pin to be moved relative to the plug pin.

In order to move the locking pin at least into the locking position without additional tools, the locking pin can have a handling head at its upper end, spaced from the stop flange. This can be moved using a finger or the like along the device housing opening and along the longitudinal bore of the plug pin until it reaches its locking position. If necessary, the locking pin can also be removed using the handling head.

In order to arrange the pin in the device housing opening without play and better guided, it is conceivable that guide arms extend upwards from the radial flange on both sides of the longitudinal bore on its upper side opposite the locking foot.

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These can be brought into contact with an inner side of the insertion section, in particular with their outer sides.

The guide arms can also be used to releasably attach the locking pin to the plug pin, for example by arranging at least one locking projection on the inner sides of the guide arms facing each other, between which the stop flange of the locking pin can be guided in a locking manner. If the locking pin is therefore inserted far enough into the longitudinal bore of the plug pin, its stop flange locks into these locking projections, so that the locking pin is prevented from automatically detaching from the plug pin. The locking pin can only be removed from the plug pin by overcoming the resistance of the locking projections.

In the simplest case, the locking projection can be formed at the upper end of the guide arm.

In order to simultaneously secure the locking pin in its locking position in a simple manner, a locking projection can be formed between the locking projection and the top of the radial flange on the inside of each guide arm, opposite one another. The locking projection at the top of the guide arms prevents the locking pin from accidentally coming loose from the plug pin, so that they can be handled together. Furthermore, the locking projection creates a noticeable locking position when the locking pin is inserted further into the plug pin, and the locking pin is only released from the locking position when the resistance of the corresponding locking projections is overcome.

In order to be able to arrange at least plug pins in the corresponding device holder openings in a rotationally secure manner, it is conceivable that this opening is essentially U-shaped in cross-section.

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This makes it possible, for example, to insert some pins into the corresponding housing holder openings, then push the device housing with its device housing openings onto the existing pins and then place the remaining pins separately in place.

In the following, an advantageous embodiment of the invention is explained and described in more detail with reference to the figures attached to the drawing.

Show it:

Figure 1 shows a longitudinal section through a fastening means of the holder device according to the invention;

Figure 2 is a bottom view according to H-II of Figure 1;

Figure 3 shows a longitudinal section through the fastening means analogous to

Figure 1 with device holder and device housing;

Figure 4 shows a section analogous to Figure 3 with the pin in the locking position;

Figure 5 a section analogous to Figure 3 with pin in locking position

and locking pin in locking position;

Figure 6 is a side view of a locking pin;

Figure 7 is a side view of a plug pin;

Figure 8 is a plan view of a device holder, and

Figure 9 is a plan view of a device housing.

Figures 1 to 5 show a fastening means 4 for releasably fastening a device housing 3 to a device holder 2 in an embodiment of the device holding device 1 according to the invention.

The fastening means 4 comprises a pin 7 and a locking pin 36. The pin 7 has a locking end 8 with two locking legs lying opposite one another as its lower end. Locking feet 14 are formed on the free ends of the locking legs 12. ..Their upper side 13 is formed as a locking slope 16 which projects radially outwards over the locking legs 12 and points obliquely downwards.

A contact flange 17 is arranged above the locking end 8. This protrudes radially outward from the pin 7 and forms a contact plate 19 with a flat upper side 20 and a flat lower side 56.

Above the contact plate 19 and at a distance from it, a radial flange 9 is arranged, which also protrudes radially outwards from the plug pin 7. On the underside of the radial flange 9, two support strips 33, 34 protrude opposite one another as supports. These point diagonally downwards and outwards relative to the plug pin 7.

On an upper side 40 of the radial flange 9, two guide arms 45, 46 also protrude opposite one another. On their inner sides 49, locking projections 50, 51 and securing locking projections 52, 53 are arranged facing one another. The locking projections 50, 51 are arranged at the upper end 54 of the guide arms 45, 46. The securing locking projections 52, 53, see also Figures 4 and 5, are arranged below the locking projections 50, 51 and at a distance from the upper side 40 of the radial flange 9.

The plug pin 7 has a longitudinal bore 35 into which the locking pin 36 can be inserted. This has a lower end 38 which, when the locking pin 36 is in the locking position 37 (see Figure 5), is arranged between the two locking feet 14 and keeps them at a distance from each other. At the upper end 43 of the locking pin 36 there is a

Handling head 44 is arranged. Below and at a distance from this is a stop flange 39 which projects radially outwards from the locking pin 36.

In the bottom view along line H-II in Figure 1 of the fastening means 4 according to Figure 1, it can be seen that the longitudinal bore 35 is arranged centrally in the plug pin 7 and in particular in the contact plate 19 and radial flange 9. The locking feet 14 have tapered ends on their rear side opposite an insertion slot 24 (see Figure 9) and curved towards each other on their outer sides. These are adapted to the shape of corresponding device holder openings 5 (see Figure 8). Accordingly, the contact plate 19 and radial flange 9 are curved on their rear sides 58 complementary to a device housing opening 6 (see Figures 3 to 5 and 9). The radial flange 9 runs in a straight line on its front side 57. On its underside 32, the support strips 33 and 34 protrude diagonally downwards and outwards.

In Figure 3, the fastening means 4 is inserted on the side of the device housing 3 into the corresponding device housing opening 6 through the insertion gap 24 which is open to the outside relative to the device housing 3, see also Figure 9. The pin 7 is in contact with an upper opening edge 18 of the device housing opening 6 with its support strips 33, 34. This has an upper insertion section 26 and a lower holding section 25. The transition between these sections is formed by the upper opening edge 18. The outer sides 47 of the guide arms 45, 46 are in contact with the inner side 48 of the device housing opening 6, see also Figure 9. The device housing opening 6 has an approximately U-shaped cross section.

On the underside of the device housing 3, the top side 20 of the contact plate 19 or contact flange 17 is in contact with a lower opening edge 21 of the device housing opening 6. This is formed in a side wall 30 of the device housing 3, see Figure 9, and is accessible from the outside 23 thereof through the insertion gap 24. The locking pin 36 is inserted into the plug pin 7 so far that its lower end 38 is arranged just above the locking feet 14. The contact flange 39 is between locking projections 50, 51 and safety locking projections 52, 53

The locking feet 14 are arranged above the device holder opening 5 and can be passed through this to fasten the device housing 3 to the device holder 2.

In Figure 4, the locking feet 14 are guided through the device holder opening 5 and the locking bevels 16 engage behind a lower opening edge 15 of the device holder opening 5. In Figure 4, the plug pin 7 is arranged in its locking position 10. The locking pin 36 is still inserted into the plug pin 7 relative to it, as shown in Figure 3.

..The device housing opening 6 extends over the entire height 31 of the device housing 3, wherein the insertion section 26 extends from the holding section 25 to the upper end of the device housing 3.

According to Figure 4, the contact flange 17 with its underside 56, see Figure 3, is in contact with a contact opening edge 11 of the device holder opening 5, so that the device housing 3 according to Figure 4 is arranged in its fastening position 22, but is not yet secured.

In Figure 5, the fastening position 22 of the device housing 3 is secured by further pushing in the locking pin 36 into its locking position 37. In the locking position 37, the lower end 38 of the locking pin 36 is arranged between the locking feet 14 and the stop flange 39 is with its underside 59, see Figure 6, in contact with the upper side 40 of the radial flange 9. In this position, the stop flange 39 is arranged below the locking projections 52, 53.

Figure 6 shows a side view of the locking pin 36 according to the previous figures. This has a substantially circular cross-section, which has a smaller diameter in the area of the lower end 38 compared to the rest of the area. The stop flange 39 has a substantially U-shaped cross-section in plan view. On the front side 57, see also Figure 2, an engagement bevel 41 is formed in the underside 59 of the stop flange 39, which extends from the front side 57 backwards and diagonally downwards.

The circular handling head 44 is arranged at the upper end 43.

Figure 7 shows a side view of the plug pin 7 (see also the previous figures). This has an engagement bevel 42 formed in the top side 40 of the radial flange 9 (see also Figure 1, for example) and inclined downwards towards the front. When the locking pin 36 is arranged in the locking position 37 (see Figure 5), the two engagement bevels 41, 42 form a wedge-shaped engagement gap.

In Figure 7 it can be seen in particular that the locking feet 14 on their rear side facing the device housing opening 6 are curved towards each other on their corresponding outer sides, see also Figure 2.

For further features of locking pin 36 and plug pin 7 according to Figures 6 and 7, reference is made to the preceding figures and the description therein.

Figures 8 and 9 show a plan view of an embodiment of a device holder 2 and a device housing 3. These are only described where necessary.

For example, three device holder openings 5 are arranged in a mounting side 28 of the device holder 2 facing the device housing 3. These have an approximately U-shaped cross-section. The device holder openings pass through the device holder 2 and open out onto its rear side, see also Figures 3 to 5.

The device holder 2 has on its rear side opposite the mounting side 28 corresponding fastening devices 60, for example for fastening to a wall, to a mesh cable tray, to a pipe or the like.

In the device housing 3 according to Figure 9, it is particularly evident that the device housing openings 6 are arranged in side walls 30 of the device housing 3. The device housing openings 6 are accessible through outwardly open insertion gaps 24.

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The device housing openings 6 also have an approximately U-shaped cross-section. In the device housing openings 6, the upper opening edge 18 (see for example Figures 3 to 5) of the holding section 25 can be seen in plan view, with which a bottom side 32 of the radial flange 9 (see Figure 1) or the support strips 33, 34 are in contact when the plug pin 7 is inserted from the outside through the insertion gap 24 into the device housing opening 6.

For the sake of simplicity, no individual parts are shown in an interior 55 of the device housing 3. Such individual parts can be, for example, switches, buttons, plugs, junction boxes, terminals or the like.

Finally, it should be noted that releasing the device housing from the device holder is carried out in reverse to the steps shown in Figures 3 to 5. First, the locking pin 36 is pulled back to the position shown in Figure 4 relative to the plug pin 7. This can be done, for example, by inserting a screwdriver or the like into the engagement gap formed by the two engagement bevels 41, 42. Then, by pressing the two locking feet 14 together, the plug pin and thus the device housing 3 can be released from the device housing holder 2, see Figure 3. The device housing can then be handled together with the fastening means or the fastening means can be released from the device housing through the engagement gap 24. The locking pin remains in a detachable connection with the plug pin 7 due to the arrangement of the stop flange 39 between locking projections 50, 51 and locking locking projections 52, 53. In this way, the fastening means 4 can be handled in a uniform manner. Of course, the locking pin 36 can also be detached from the plug pin 7 in accordance with Figure 1.

Claims (25)

1. Device holding device ( 1 ) with a device holder ( 2 ) and at least one device housing ( 3 ), which is detachably fastened to the device holder ( 2 ) by means of at least one fastening means ( 4 ), wherein the device holder and the device housing have openings ( 5 , 6 ) through which the fastening means ( 4 ) can be inserted and fastened there, characterized in that the fastening means ( 4 ) has a plug pin ( 7 ) which can be latched into the device holder opening ( 5 ) with a locking end ( 8 ) and which has a radial flange ( 9 ) which, in the locking position ( 10 ) of the plug pin ( 7 ), at least partially rests against a contact opening edge ( 11 ) of the device housing opening ( 6 ), wherein the device housing opening ( 6 ) is formed laterally on the device housing ( 3 ) and on the outside ( 23 ) facing away from the device housing has an insertion gap ( 24 ). 2. Device holding device according to claim 1, characterized in that at least two elastically radially deflectable locking legs ( 12 ) are formed on the locking end ( 8 ). 3. Device holding device according to claim 1 or 2, characterized in that each locking leg ( 12 ) has a locking foot ( 14 ) projecting radially outward beyond the locking leg at least on its upper side ( 13 ). 4. Device holding device according to at least one of the preceding claims, characterized in that the upper side ( 13 ) of the locking foot ( 14 ) is formed with a locking slope ( 16 ) engaging behind a lower opening edge ( 15 ) of the device holder opening ( 5 ). 5. Device holding device according to at least one of the preceding claims, characterized in that the plug pin ( 7 ) has a contact flange ( 17 ) above the locking end ( 8 ) which, in the locking position ( 10 ), is essentially in contact with an upper opening edge ( 18 ) of the device holder opening ( 5 ). 6. Device holding device according to at least one of the preceding claims, characterized in that the contact flange ( 17 ) is designed as a contact plate ( 19 ) projecting radially outward from the plug pin ( 7 ). 7. Device holding device according to at least one of the preceding claims, characterized in that the contact flange ( 17 ) can be placed with its upper side ( 20 ) against a lower opening edge ( 21 ) of the device housing opening ( 6 ) in the fastening position ( 22 ) of the device housing ( 3 ). 8. Device holding device according to at least one of the preceding claims, characterized in that the device housing opening ( 6 ) is arranged within the contour of the device housing ( 3 ). 9. Device holding device according to at least one of the preceding claims, characterized in that the device housing opening ( 6 ) is substantially semicircular or U-shaped. 10. Device holding device according to at least one of the preceding claims, characterized in that the device housing opening ( 6 ) has at least one holding section ( 25 ) and one insertion section ( 26 ), wherein the holding section ( 25 ) extends from the contact opening edge ( 11 ) to the lower end ( 27 ) of the device housing opening ( 6 ), with which the upper side ( 20 ) of the contact flange ( 17 ) can be brought into contact, and the insertion section ( 26 ) adjoins the holding section ( 25 ) for receiving an upper end section ( 29 ) of the plug pin ( 7 ). 11. Device holding device according to at least one of the preceding claims, characterized in that the insertion section ( 26 ) extends in a side wall ( 30 ) of the device housing ( 3 ) over substantially its entire height ( 31 ) from the holding section ( 25 ). 12. Device holding device according to at least one of the preceding claims, characterized in that the radial flange ( 9 ) of the plug pin ( 7 ) has, on its underside ( 22 ) facing the contact opening edge ( 11 ), stands ( 33 , 34 ) projecting in the direction of the contact opening edge ( 11 ) at least on two opposite sides of the plug pin ( 7 ). 13. Device holding device according to at least one of the preceding claims, characterized in that the supports ( 33 , 34 ) are designed as support strips ( 33 , 34 ) extending downwards and obliquely radially outwards. 14. Device holding device according to at least one of the preceding claims, characterized in that the cross section of the radial flange ( 9 ) is substantially complementary to the cross section of the insertion section ( 26 ). 15. Device holding device according to at least one of the preceding claims, characterized in that the plug pin ( 7 ) has a longitudinal bore ( 35 ) for receiving a locking pin ( 36 ) which, in the locking position ( 37 ), is arranged with its lower end ( 38 ) between the locking feet ( 14 ). 16. Device holding device according to at least one of the preceding claims, characterized in that the locking pin ( 36 ) has a stop flange ( 39 ) which, in the locking position ( 37 ), rests on the upper side ( 40 ) of the radial flange ( 9 ). 17. Device holding device according to at least one of the preceding claims, characterized in that the stop flange ( 39 ) has a substantially U-shaped cross-section. 18. Device holding device according to at least one of the preceding claims, characterized in that the stop flange ( 39 ) and/or the radial flange ( 9 ) have engagement slopes ( 41 , 42 ) pointing outwards relative to the insertion gap ( 24 ) in their mutually facing sides. 19. Device holding device according to at least one of the preceding claims, characterized in that the locking pin ( 36 ) has a handling head ( 44 ) at its upper end ( 43 ) spaced from the stop flange ( 39 ). 20. Device holding device according to at least one of the preceding claims, characterized in that guide arms ( 45 , 46 ) project upwards on both sides of the longitudinal bore ( 35 ) of the radial flange ( 9 ) on its upper side ( 40 ) opposite the locking feet ( 14 ). 21. Device holding device according to at least one of the preceding claims, characterized in that the guide arms ( 45 , 46 ) can be brought into contact with their outer sides ( 47 ) with an inner side ( 49 ) of the insertion section ( 26 ). 22. Device holding device according to at least one of the preceding claims, characterized in that the guide arms ( 45 , 46 ) have on their mutually facing inner sides ( 49 ) at least one locking projection ( 50 , 51 ) between which the stop flange ( 39 ) can be guided through in a locking manner. 23. Device holding device according to at least one of the preceding claims, characterized in that the locking projection ( 50 , 51 ) is formed at the upper end ( 54 ) of the guide arm ( 45 , 46 ). 24. Device holding device according to at least one of the preceding claims, characterized in that a securing locking projection ( 52 , 53 ) between the locking projection ( 50 , 51 ) and the upper side ( 50 ) of the radial flange ( 9 ) are formed on inner sides ( 49 ) of each guide arm ( 45 , 46 ) opposite one another. 25. Device holding device according to at least one of the preceding claims, characterized in that the device holder opening ( 5 ) is substantially U-shaped in cross section.