Edge profile for forming a part of a suspended ceiling substructure and a suspended ceiling substructure

Abstract

Edge profile 10 for forming a part of a suspended ceiling substructure comprising a plurality of support profiles arranged suspended from a raw ceiling of a building structure and a plurality of base profiles, each of which being attached to at least one of the plurality of support profiles, the edge profile 10 having a U-shaped cross-section with a base portion 11 capable of being fixed to a wall structure, a first leg portion 12 and a second leg portion 13, the first leg portion 12 having an outer section 122 and an inner section 121, wherein the outer section 122 is arranged offset towards the second leg portion 13 relative to the inner section 121.

Claims

1. Edge profile forming part of a suspended ceiling substructure comprising a plurality of support profiles arranged suspended from a raw ceiling of a building structure and a plurality of base profiles, each of which being attached to at least one of the plurality of support profiles, the edge profile having a U-shaped cross-section comprising a base portion capable of being fixed to a wall structure, a first leg portion and a second leg portion, the first leg portion having an outer section and an inner section, wherein the outer section is arranged offset towards the inner section and relative to the second leg portion, and wherein the outer section is arranged closer to the second leg portion than the inner section.

2. Edge profile according to claim 1, wherein the outer section of the first leg portion is parallel to the second leg portion.

3. Edge profile according to claim 2, wherein the outer section and the second leg portion are arranged in parallel in a distance of 30 mm to 50 mm.

4. Edge profile according to claim 1, wherein the inner section of the first leg portion has a length which is shorter than the length of the outer section.

5. Edge profile according to claim 1, wherein the inner section has a length of 15 mm to 25 mm, and the outer section has a length of 25 mm to 35 mm.

6. Edge profile according to claim 1, wherein the second leg portion comprises an abutment edge extending inwardly towards the first leg portion.

7. Edge profile according to claim 1, wherein the abutment edge is arranged in a distance from the base portion which corresponds to the length of the inner section of the first leg portion.

8. Edge profile according to claim 1, further including a suspended ceiling substructure comprising a plurality of support profiles to be arranged suspended from a raw ceiling of a building structure and a plurality of base profiles each of which being attached to at least one of the plurality of support profiles, wherein the suspended ceiling substructure further comprises at least one edge profile.

9. Suspended ceiling substructure according to claim 8, wherein the inner section and the outer section of the first leg portion of the edge profile are arranged parallel having an offset distance which corresponds to the distance between a lower surface of the plurality of support profiles and a lower surface of the plurality of attached base profiles.

10. Suspended ceiling substructure according to claim 8, wherein each support profile comprises at least one hanger for arranging the support profile at a raw ceiling of a building structure.

11. Suspended ceiling substructure according to claim 9, comprising at least one further edge profile having an L-shaped cross section.

12. Drywall ceiling comprising a suspended ceiling substructure according to claim 9 and at least one layer of building boards, comprising gypsum plasterboards, gypsum fiberboards, cement boards, vermiculite boards, silicate boards, and magnesium oxide boards attached to the base profiles.

13. Drywall ceiling according to claim 12, comprising one layer of building boards attached to the base profiles and at least one further edge profile having an L-shaped cross section, wherein a portion of the further edge profile is arranged between the building boards and the base profiles.

14. Drywall ceiling to claim 13, comprising at least two layers of building boards attached to the base profiles and at least one further edge profile having an L-shaped cross section, wherein a portion of the further edge profile is arranged between individual layers of building boards of the two layers of building boards.

15. Drywall ceiling according to claim 12, further comprising a securing clip fixing the hanger to the support profile.

16. Edge profile according to claim 1, further including a set for earthquake-proof construction of a drywall ceiling, comprising at least an edge profile and at least one securing clip.

Description

(1) In the following the invention will be explained in more detail with reference to drawings. Like reference numerals denote similar features throughout the drawings. is the drawings show:

(2) FIG. 1 a sectional view of an edge profile according to the invention;

(3) FIG. 2 a sectional view of an earthquake-proof drywall ceiling with a substructure comprising the edge profile of FIG. 1;

(4) FIG. 3 a sectional view of an earthquake-proof drywall ceiling with a substructure comprising the edge profile of FIG. 1;

(5) FIG. 4 a perspective view of an earthquake-proof drywall ceiling with a substructure comprising the edge profile of FIG. 1; and

(6) FIG. 5 a close-up of a hanger and a securing clip according to the invention.

(7) An edge profile 10 as shown in the sectional view of FIG. 1 has a u-shaped cross-section with a base portion 11 which is screwed in the mounted state to a wall structure (see FIG. 2). Edge profile 10 has at the lower side a first leg portion 12 and on the upper side a second leg portion 13. The first leg portion 12 extends from base portion 11 with and inner section 121 and an adjacently arranged outer section 122. First leg portion 12 is formed as a step, wherein outer section 122 is arranged closer to the second leg portion 13 than the inner section 121.

(8) The outer section 122 of the first leg portion 12 is arranged parallel to the second leg portion 13 so that a support profile (see FIG. 2) can be inserted between the inner surfaces of both. The distance between the outer section 122 and the second leg portion 13 is about 40 mm which corresponds to the height of a standard support profile height. Inner section 121 of the first leg portion 12 has a length which is shorter than the length of the outer section 122. In the depicted example the inner section 121 has a length of about 20 mm, the outer section 122 has a length of about 30 mm and the base portion 11 has a length of about 45 mm.

(9) The second leg portion 13 comprises an abutment edge 131 or kink extending inwardly towards first leg portion 12. The abutment edge 131 is of a size and shape to form a stop for the front surface of the inserted support profile (see FIG. 2). The abutment edge 131 is arranged in a distance from the base portion 11 which corresponds to the length of inner section 121 of the first leg portion 12. This arrangement allows for inserting the support profile along the entire length of the outer section 122 into the space between the outer section 122 of the first leg portion 12 and the second leg portion 13.

(10) According to the invention, the edge profile 10 can be provided as part of an earthquake-proof ceiling construction. The edge profile 10 allows for arranging a support profile (as shown in FIG. 2) between the outer section 122 of first leg portion 12 and second leg portion 13. During a seismic movement, the support profile is prevented from moving vertically. In case of a strong earthquake, the support profile is vertically fixed between of the first leg portion 12 and the second leg portion 13 and cannot be lifted or even drop therefrom into the room below. The invention provides the advantages of known L-shaped edge profiles with improved stability (due to the first leg portion being formed with an outer section 122 and an inner section 121 for resting the support profile onto the upper surface of outer section 122 while the plasterboards 2 are mounted from below in contact with the lower surface of the inner section 121) and the advantages of an earthquake-proof drywall ceiling construction.

(11) FIG. 2 shows a part sectional view of a drywall ceiling with a substructure comprising the edge profile 10 described in FIG. 1. The drywall ceiling comprises an u-shaped edge profile 10 screwed to a wall. The support profile 20 is inserted between the outer section 122 of the first leg portion 12 and the second leg portion 13 such that the front end of the support profile 20 contacts the abutment edge 131.

(12) FIG. 3 is a larger view on the section of the ceiling in FIG. 2 and shows the arrangement of the plasterboard in an earthquake-proof ceiling according to the invention. Each support profile 20 comprises at least two hangers 21 for arranging the support profile 20 at a raw ceiling (not shown in the present illustration) of a building structure. Such a hanger 21 has a holder portion which is clamped to a hanger wire. A securing clip 23 can be fastened to the hanger in the mounted state to mechanically fasten the support profile 20 to the hanger 21. Preferably, the securing clip 23 is mechanically fastened to the support profile 20 by a self-tapping steel screw 24 after final positioning the hanger 21 in the slot of the support profile 20. This securing clip 23 provides further earthquake-stability to the suspended ceiling by preventing the separation of the support profile 20 from the hanger 21 due to movements in three directions during earthquakes.

(13) This means that dynamic movements (x-y-z axis) as expected during an earthquake cannot separate the hanger 21 from the support profile 20. The design of the securing clip 23 allows for precise and effortless positioning and a save fixing with standard self-tapping steel screws 24 to the support profile 21.

(14) Advantageously, inner section 121 and outer section 122 of edge profile 10 are arranged parallel with an offset distance which corresponds (in the mounted state of the suspended ceiling substructure) to the distance between a (virtual common) lower surface of the support profiles 20 and a (virtual common) lower surface of the attached base profiles 30. This allows resting the support profile 20 onto the upper surface of outer section 122 while the plasterboards 2 are mounted from below in contact with the lower surface of inner section 121.

(15) A perspective view of a drywall ceiling with a substructure comprising the edge profile 10 of FIG. 1 is shown in FIG. 4. The suspended ceiling substructure of the ceiling comprises support profiles 20 suspended via hangers from a raw ceiling (not shown in the present illustration) of a building structure and a plurality of base profiles 30. In the shown example one layer of plasterboards 2 is attached to the base profiles 30 from below. The end portion of the support profile 20 is arranged in the edge profile 10. Parallel to the support profile 20 a further edge profile 40 having an L-shaped cross section is fixed to the wall. This further edge profile 40 supports the end portions of the base profiles 30. It is generally arranged on the walls perpendicular to the walls where the profile 10 fixed. Of course, the angle between the edge profiles 10, 40 depends on the angle between the support profile 20 and the base profile 30.

(16) FIG. 5 shows a close-up of the securing dip 23 for securing a support profile 20 suspended from a raw ceiling by a hanger 21 to the support profile 20. The securing clip 23 has a first 231 and a second leg portion 232 arranged in an L-shape, the first leg portion 231 being longer than the second leg portion 232, and comprising a slot 233 open to one small end of the first leg portion 231 to slidably fix the securing clip 23 over the support profile 20 by arranging the hanger 21 in the slot 233.

(17) The securing clip 23 can be fastened to the support profile 20 by a securing means 24. The securing means 24 can be a screw, a pin, a rivet or similar. Preferably, the securing means is self-tapping screw.