EP1857604B1 - Service ceiling for laboratories, and method of installing such a ceilling - Google Patents

Abstract

The ceiling has a carrier construction (10) fastened to an attachment point of a ceiling (14) of a research laboratory e.g. chemical laboratory, by an assigned distance piece (11). A compensating arrangement (12) is provided between the attachment point and the distance piece. The arrangement enables the adjustment of the distance piece relative to the attachment point in a horizontal plane. The distance piece has a retaining anchor (13) fastened to the ceiling. An independent claim is also included for a method for mounting a service ceiling.

Description

The invention relates to a media ceiling for laboratories and a method for assembling such according to the preamble of claim 1 and 10.

For the establishment of research laboratories e.g. For chemical or physical research, ceiling structures are used in which the pipes for the supply and exhaust air, the technical gases, liquids, power, data and similar cables required in the laboratory are secured in the ceiling by means of suitable dowel-type fasteners attached building ceiling.

For this purpose, a horizontal profile carrier having support structure, in which the aforementioned lines are performed, provided in which the profile support are secured by spacers to the building ceiling. A problem with this type of mounting is that the assembly requires a very accurate preparation in order to be able to position the support structure accurately and to keep the tolerances as small as possible. Since the media ceiling is preferably assembled on the floor before being mounted on the building ceiling, the fastening points on the support structure are precisely specified; the introduction of the retaining anchor in the building ceiling is to be adapted to the attachment points, which does not succeed in every case. Rather, it must be considered that the introduction of the holes for receiving the retaining anchor in the building ceiling is done manually, which is why one or the other retaining anchor is not always aligned exactly with the associated predetermined attachment points on the support structure.

From the not pre-published EP 1 684 393 B1 a device for the media and power supply is known, in which a support structure of profile carriers with vertically extending spacers with the aid of Ceiling-side fasteners and carrier-side connecting elements after lifting the support structure on the ceiling of the building can be latched. However, the design of the fastening and connecting elements only allows a very small relative displacement of the support structure relative to the attachment point in a horizontal plane.

From the DE 3 943 510 A1 a supporting structure for a suspended ceiling is known in which the ceiling panels of a suspended ceiling fastened thereto spacers are fastened by means of a screw on the building ceiling, wherein the cover-side part of the screw with the aid of a plate-shaped element, which contained in the cover-side part larger opening covered and fixed by means of a screw in the building ceiling, is mounted in a horizontal plane displaceable on the building ceiling. In order to finally fix the vertical spacers in a desired position, it is necessary to reopen the screw connections after pre-positioning the assembly in the desired position below the building ceiling and tighten the ceiling-side screw with a high torque to the plate on the building ceiling tense. This can easily lead to an unwanted displacement of the prepositioned arrangement.

The object of the invention is to provide a media cover or a mounting arrangement of the type mentioned, can be compensated with the tolerances without much effort.

This object is achieved by the features of claim 1.

According to the invention is located between each spacer and the building ceiling or between a retaining anchor, which is introduced into the building ceiling, an adjustable compensating device that allows, the position of the associated spacer relative to the already secured in or on the building ceiling retaining anchor in a horizontal plane ie. to change a substantially parallel to the building ceiling extending level in the X and Y direction.

According to the invention, the compensating device has a ball-like formation, preferably designed as a nut arrangement, which is provided with an internal thread and which can be screwed onto the spindle-shaped holding anchor provided with an external thread. The molding is fixed between two jaws, the jaws are taken with the nut assembly itself between two guide jaws, which in turn are connected to the spacer. This embodiment of the invention results in addition to the adjustability in the X and Y directions adjustability in the Z direction, ie. in the vertical.

For assembly, the nut assembly is screwed onto the retaining anchor which can be fastened in the ceiling, and the shaping between the two clamping jaws is held by slight contraction of the clamping jaws. In this case, the jaws in relation to the molding in a first direction - hereinafter referred to as X-direction - moved and adjusted. In addition, the guide jaws relative to the jaws perpendicular to the first direction in a second direction - hereinafter referred to as Y-direction - be moved.

This allows each spacer to be positioned to a certain extent even at its intended position below the ceiling, even if the holes in the building ceiling are not exactly introduced.

The shape is formed like a ball.

The jaws advantageously have a U-shape, the open sides of which face each other, wherein the flanks of the legs of the U-shape of the shape are adapted. Thus, the jaws can be moved relative to the molding within the U-shape in the first direction.

The guide jaws can according to the invention have a recess or recess in which the clamping jaws are guided, wherein the recess allows movement of the guide jaws relative to the jaws in the second direction perpendicular to the first direction.

Both directions lie in a plane that runs parallel to the plane of the support structure or the building ceiling.

If the individual components of the compensating device are brought into their correct position to each other, they can be fixed by tightening fixing screws against each other.

Further advantageous embodiments of the invention will become apparent from the dependent claims.

Reference to the drawing, in which an embodiment of the invention is shown, the invention and further advantageous refinements and improvements and other advantages are explained and described in detail.

Fig. 1

eine schematische Seitenansicht der erfindungsgemäßen Anordnung,

Fig. 2

eine gegenüber der Fig. 1 um 90° gedrehte schematische Seitenansicht,

Fig. 3

eine schematische Teilansicht eines erfindungsgemäßen Klemmteiles mit der darin aufgenommenen zugehörigen kugelartigen Ausformung,

Fig. 4

eine schematische perspektivische Ansicht der Anordnung nach den Fig. 1 und 2, teilweise geschnitten, und

Fig. 5

eine perspektivische Ansicht der erfindungsgemäßen Ausgleichsanordnung.

Show it:

Fig. 1

a schematic side view of the arrangement according to the invention,

Fig. 2

one opposite the Fig. 1 rotated by 90 ° schematic side view,

Fig. 3

FIG. 2 a schematic partial view of a clamping part according to the invention with the associated ball-like shaping received therein, FIG.

Fig. 4

a schematic perspective view of the arrangement according to the Fig. 1 and 2 , partially cut, and

Fig. 5

a perspective view of the compensation arrangement according to the invention.

A media cover, as in particular from the non-prepublished German patent application DE 10 2005 045 453 discloses a carrier assembly 10 which is attached to a plurality of spacers 11, wherein the number of spacers 11 on the size of the support assembly 10 depends. For simplicity, however, the invention will be described below only in connection with such a spacer.

The spacer 11 is preferably formed as a quadrangular profile in cross section, and is connected via a compensation arrangement 12 according to the invention with a spindle-shaped mounting or retaining anchor 13, which is inserted into the building ceiling 14, z. B. cemented, is. For bracing the retaining anchor 13, a bearing plate 15 is provided, which is e.g. with the interposition of a washer 16 by means of a nut 17 is screwed against the bottom 18 of the building ceiling 14.

The compensating assembly 12 comprises a preferably spherical enlargement or formation 22 having an internal thread 20, and screwed on the retaining anchor 13 by means of a mother attached to the formation or integrally molded with this nut 21, and is fixed by jamming on this , as will be described in more detail below. The formation 22 has an outwardly projecting circumferential bar or nose 23 in the region of its largest diameter. However, the nut 21 may also be configured as a separate locknut, wherein on the ball-like formation 22 in this case, an engagement portion or an engagement surface for a tool for rotating the molding is formed.

As in the FIGS. 1 to 5 , especially in Fig. 2 and 5 is shown, the ball-like formation 22 between two clamping parts 24, 25 is clamped. Each clamping part 24, 25 For this purpose has an approximately V- or U-shaped groove 26, 27, the flanks of which are concave in accordance with the shape of the spherical extension 22, such that the V-shaped grooves 26, 27 engage around the spherical extension 22 in a manner adapted to the shape can.

Centered in the bottom of the V-shaped grooves 26, 27 extends a recess 28, which leaves the bar 23, ie. not contacted. Each of the two clamping parts 24, 25 is preferably designed elongated cuboid, wherein the grooves 26, 27 in an outer surface of the clamping member 24, 25, which runs parallel to the longitudinal axis of the retaining armature 13, are introduced. In this case, the grooves 26,27 preferably extend transversely to the retaining anchor 13, i. horizontally, and the open sides of the grooves 26, 27 are preferably toward each other.

For clamping the clamping pieces 24, 25 Schrauben-Nutternverbindurigen 29 are provided, which are arranged in pairs outside and on both sides of the Nutenbereiches.

Before the spherical extension 22 is braced, ie. before the bolt-nut connections 29 are tightened, the clamping members 24, 25 relative to the spherical extension 22 can be freely displaced to some extent in the X-direction to correct the position of the spacer 11 relative to the retaining anchor 13.

The clamping parts 24, 25 are received between guide jaws 30, 31, which are U-shaped in cross section. The leg ends 32, 33 of the guide jaws 30, 31 are preferably adjacent to each other, so that between the guide jaws 30, 31, a closed rectangular space 34 is formed, whose central axis extends horizontally and perpendicular to the longitudinal axis of the retaining anchor 13. The guide jaws 30, 31, before being tightened by tightening screw-nut connections 34 against the clamping parts 24, 25, relative to the clamping parts 24, 25 are displaced in the direction of the center line of the receiving space 34 in the Y direction.

With this double displaceability, namely the displaceability of the clamping parts 24, 25 together with the guide jaws 30, 31 in the first direction X, and the displaceability of the guide jaws 30, 31 in the second, perpendicular to the first direction X extending direction Y, the attached to the lower guide jaw 31 spacers 11 relative to the retaining anchor 13th , which is fixed immovably in the Gebäudemecke14, be adjusted so that tolerances of the distances of the retaining anchor 13 relative to the support structure 10 are compensated.

The installation of the media ceiling is carried out as follows:

First, the support structure 10 and then the media ceiling, not shown, are assembled lying on the floor, which is only of importance for the invention in that the assembly of the media ceiling and the spacers 11 received there is a fixing of the spacings of the spacers 11. The retaining anchor 13 are inserted in certain horizontal distances in the building ceiling and thus no longer changeable in their position. At the spacers 11 which are based on the building ceiling 14 lower guide jaws 31 are attached. The upper guide jaws 30 are together with the molding 22, which is screwed onto the retaining anchor 13 and with the nut 20 in the manner of a nut assembly 19 is rotated, and with the clamping parts 24,25, which are slightly attracted to the spherical extension or recess 22, pre-assembled at the retaining anchors 13. Thereafter, the media ceiling is raised to mounting height, so that the lower guide jaws 31 come to lie with the leg ends against the leg ends of the guide jaws 30. If tolerances between one or more of the spacers 11 to the retaining anchors 13 are present, which is seldom excluded, the clamping parts 24, 25 can be displaced in the first direction X relative to the ball-like formation 22 as required.

If necessary, the guide jaws 30, 31 can be displaced in the same way against the clamping parts 24, 25 in the second direction Y. Thereafter, all components are tightened by tightening the screws 29 and 35 against each other. If the retaining anchor 13 are not used exactly vertically, can be an oblique position be compensated by the formation 22 by the jaws 24, 25 are rotated due to their Nutenform opposite the spherical extension 22. In other words, the angular position between spacer 11 and retaining anchor 13 can be corrected by a certain angular range, that the ball-like formation 22 within the grooves 26, 27 about the first axis x and / or the second axis Y is rotated.

Claims (10)

1. Service ceiling for laboratories, in which supply lines for carrying technical gases, fluids, and current as well as ventilation and extraction lines, etc., are installed, with a bearer structure (10), which is attached by at least one fixing point to the building ceiling (14) of the laboratory by means of a dedicated spacer support (11), whereby an alignment device (12) is provided between the fixing point and the spacer support (11), whereby said alignment device enables the spacer support (11) to be adjusted relative to the fixing point in a substantially horizontal plane,
   characterised in that
   the spacer support (11) comprises a fixing anchor (13) attached to the building ceiling (14), on which fixing anchor a spherical shape (22) is provided and that the spacer support (11) comprises clamping jaws (24, 25) between which the shape (22) is fixed, and guide jaws (30, 31) which are attached securely to the spacer support (11), whereby the clamping jaws (24, 25) can be moved relative to the shape (22) in a first direction (X), and the guide jaws (30, 31) can be moved relative to the clamping jaws (24, 25) in a second direction (Y) running at right angles to the first direction.
2. Service ceiling in accordance with claim 1,
   characterised in that
   the fixing anchor (13) has a spindle-shaped external thread, and that the spherical shape (22) has an internal thread (20) over which the shape (22) fits and can move on the fixing anchor (13) to change the distance between the bearer structure (10) and the building ceiling.
3. Service ceiling in accordance with claim 1 or 2,
   characterised in that
   each of the clamping jaws (24, 25) have a U-shaped recess (26, 27) whose open sides point towards each other in the assembled condition.
4. Service ceiling in accordance with claim 3,
   characterised in that
   the side flanks of the U-shape of recesses (26, 27) are formed as concave flanks, whereby the form of the concave flanks matches the shape (22) such that the shape (22) can be clamped securely between the concave flanks.
5. Service ceiling in accordance with claims 1 and 3,
   characterised in that
   the U-shaped recesses (26, 27) extend parallel to the building ceiling (14) such that the clamping jaws (24, 25) can be moved horizontally relative to the shape (22) in the first direction (X).
6. Service ceiling in accordance with claims 1 to 5,
   characterised in that
   the clamping jaws (24, 25) can be clamped against each other by means of screw fasteners (29).
7. Service ceiling in accordance with claims 1 to 6,
   characterised in that
   the external form of the clamping jaws (24, 25) is rectangular in its cross section.
8. Service ceiling in accordance with claims 1 to 7,
   characterised in that
   the guide jaws (30, 31) are split in a horizontal plane and enclose the clamping jaws (24, 25), and that the guide jaws (30, 31) can be clamped against each other by means of screw fasteners (35) and, therefore, against the clamping jaws (24, 25).
9. Service ceiling in accordance with claim 8,
   characterised in that
   the force to clamp the guide jaws (30, 31) is directed substantially parallel to the central axis of the fixing anchor (13) and/or that of the spacer support (11).
10. Method of assembling the service ceiling in accordance with one of the preceding claims,
    characterised by the following steps:

    - attaching the fixing anchor into the building ceiling

    - screwing the spherical shape on to the fixing anchor

    - raising the bearer structure with the clamping jaws open until the clamping jaws are located at the same height as the spherical shape,

    - tightening the clamping jaws such that their internal faces are gripping around the spherical shape to support the bearer structure and so that they enable the clamping jaws to move relative to the spherical shape,

    - placing the guide jaws together with the spacer support attached to it around the clamping jaws such that it is possible to move the guide jaws relative to the clamping jaws, and

    - securing the clamping jaws to the spherical shape and the guide jaws to the clamping jaws.

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