FI130979B1 - An attachment frame for attaching an anchor point fastener around a smoke vent hatch - Google Patents

Abstract

Fixing frame (1) for fixing the anchoring bracket (2) around the smoke exhaust hatch, where the fixing frame (1) is tightened around the smoke exhaust hatch by pressing the first clamp beam (3) towards the second clamp beam (4). The first and second clamp beams (3, 4) comprise a pressure surface (3a; 3b, 4a; 4b) arranged on the inside of the circumference with respect to the rest of the mounting frame (1), adapted to press the smoke exhaust hatch from the outer circumference, whereby the pressure surfaces (3a; 3a; 4b) of the first clamp beam (3) and the second clamp beam (4) 3b, 4a; 4b) point towards the inside of the mounting frame (1) and extend in the plane determined by the width and vertical direction of the mounting frame (1).

Description

MOUNTING FRAME FOR ATTACHING THE ANCHOR BRACKET

AROUND THE SMOKE EXHAUST DOOR

FIELD OF THE INVENTION

The invention is related to arranging the attachment of safety devices, such as a safety rope or cable, necessary when working on the roof. In particular, the invention relates to a mounting frame arranged around the smoke exhaust hatch, to which such safety devices can be attached.

BACKGROUND OF THE INVENTION

Especially on flat roofs, the fixings needed for safety devices are usually arranged with separate fixing bollards. Such fixing bollards are typically attached to the roof structure (e.g. concrete slab) below the roof structure. When retrofitting such bollards, the actual roofing material must be removed from the attachment point, which makes retrofitting quite laborious and requires special attention to ensure the waterproofing of the roofing structure.

Attachment points for safety devices are also arranged in the wall structures of structures located on the roof, such as machine rooms. In such a case, the attachment point typically has to be bolted through the structure's wall structure, which is also laborious - or even impossible - due to the tight spaces. In addition, there are typically not enough of such structures, or their placement on the roof is not suitable to implement the fixing points required to work on the entire area of the roof. x BRIEF DESCRIPTION OF THE INVENTION &

A The aim of the invention is to create a mounting frame for attaching the anchoring bracket = using existing structures on the roof, especially smoke exhaust hatches.

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= The object of the invention is achieved by the mounting frame, which is described in the independent patent claim 25. Advantageous embodiments of the invention are presented in independent patent claims.

S

S The invention is based on a mounting frame that can be tightened around the frame of a smoke exhaust hatch extending from the ceiling so that the frame of the smoke exhaust hatch remains compressed inside the perimeter defined by the mounting frame. In particular, the mounting frame according to the invention is equipped with opposing press bars, with the pressure surfaces arranged on the inside of the perimeter in relation to the rest of the mounting frame, adapted to press the smoke exhaust hatch against the frame

With the solution according to the invention, an easy-to-install mounting frame is achieved, which has a sufficiently rigid structure for attaching safety equipment, while enabling a sufficient compression surface between the mounting frame and the frame of the smoke exhaust hatch.

The fixing frame according to the invention for fixing the anchoring bracket around the smoke exhaust hatch comprises a first clamp beam and a second clamp beam arranged at a distance from this, which clamp beams extend in the width direction of the fixing frame. The clamp beams can each be formed from one or more profile pieces. Preferably, the press beams are mutually identical or at least symmetrical so that the same piece can be used as both the first and second press beams.

The fastening frame also comprises a first spacer element and a second spacer element arranged at a distance from this, which spacer elements extend in the depth direction of the fastening frame. Preferably, the spacer elements are also mutually identical or at least symmetrical, so that the same piece can be used as both the first and the second spacer element.

In particular, the first and second spacer elements extend between the first and second compression beams so that the first and second compression beams and the first and second spacer elements form the circumference of the mounting frame. The first inter-

The S element and the second spacer element are attached to the first and second clamp beams

O between with clamping means that allow the first clamp beam and the second = 25 clamp beam to be pressed towards each other to secure the mounting frame

N around the smoke exhaust hatch in such a way that at least part of the smoke exhaust hatch's outer circumference = remains compressed between the first clamp beam and the second clamp beam. 5 The simplest tightening means can be implemented with threaded fasteners.

O

N At least the first and second clamp beams comprise a pressure surface arranged on the inside of the rest of the mounting frame & 30, adapted to press the smoke exhaust hatch's outer circumference, so that the pressure surfaces of the first clamp beam and the second clamp beam point towards the inside of the mounting frame's circumference and extend in the plane determined by the width and vertical direction of the mounting frame.

Separate pressing surfaces enable a sufficient pressing surface between the mounting frame and the frame of the smoke exhaust hatch, as well as the construction of the rest of the pressing beam to be sufficiently rigid in terms of the required pressing force and the attachment of safety devices.

The mounting frame further comprises an attachment point for attaching the anchoring bracket to the mounting frame. The attachment point can be implemented, for example, in the press beam, or as one or more threaded or non-threaded holes extending through it.

According to one embodiment of the invention, the pressing surface of the first press bar can be formed on the side of an elongated profile piece extending in the width direction of the mounting frame, which extends in the vertical direction of the mounting frame. Correspondingly, the pressing surface of the second press bar is formed on the side of an elongated profile piece extending in the width direction of the mounting frame, which extends in the vertical direction of the mounting frame.

According to one embodiment of the invention, the first press beam, the second press beam or both may each comprise two or more pressing surfaces.

In particular, the first press beam and the second press beam can each comprise two pressing surfaces. Preferably, two or more pressing surfaces are arranged vertically at a distance from each other.

According to one embodiment of the invention, the first clamp beam comprises an inner beam part and an outer beam part attached to each other, and the second

N clamp beam comprises an inner beam part and an outer beam part attached

N to each other. This enables the arrangement of the pressing surfaces in the inner premiums and

S at the same time to achieve sufficient stiffness of the press beams with the help of the outer x 25 beam section. The outer premium parts can still be arranged to fit together

E with spacer elements. s Preferably, the inner beam parts are formed in the width direction of the mounting frame

Of elongated profile pieces with N dimensions, whose cross-sectional shape comprises

I opposite L-shaped flange parts, as well as the web part connecting them, whereby the sides of the free ends of the flange parts form two pressing surfaces for each press bar.

Preferably, the outer beam parts are formed from a profile piece extending in the width direction of the mounting frame. The outer beam parts can be formed, for example, from U-profile pieces, the cross-section of which is preferably open towards the outside of the perimeter of the mounting frame.

According to one embodiment of the invention, the tightening means comprise threaded fasteners, i.e. a fastener with an external thread and a corresponding fastener with an internal thread.

Advantageously, the first spacer element can comprise an elongated plate-like body, the opposite ends of which are arranged with transverse folds extending in the width direction of the mounting frame. Correspondingly, the second spacer element can comprise an elongated plate-like body, the opposite ends of which are arranged with transverse folds extending in the width direction of the mounting frame.

In this case, the tightening means can be implemented with clamps equipped with an external thread extending through the openings arranged in alignment with the press beams and spacer elements, and with corresponding clamps equipped with an internal thread.

In the simplest form, the tightening means can be implemented, for example, with bolts, dowel screws or threaded rods extending through the openings arranged in alignment with the press beams and spacer elements, as well as with nuts corresponding to these.

Tightening means can also be arranged as part of spacer elements. In this case, a section arranged with an external or internal thread can, for example, be arranged in connection with the spacer element. For example, the spacer elements may comprise a threaded rod which < extends through openings arranged in the press bars, whereby the tightening means comprise

In addition to S, female threaded fasteners arranged on the opposite ends of the threaded rods.

S BRIEF DESCRIPTION OF PATTERNS

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I 25 In the following, the invention is described in more detail with the help of preferred embodiments and with reference to - the attached figures, where: 3 (O Fig. 1 is a perspective view of an embodiment of the invention

O from the mounting frame;

Fig. 2 is a top view of the mounting frame of Fig. 1;

Fig. 3a is a sectional view of the section A-A of Fig. 2, and

Fig. 3b is a sectional view of the section B-B of Fig. 2

DETAILED DESCRIPTION OF THE INVENTION

Fig. 1 shows a perspective view of the mounting frame 1 according to one embodiment 5 of the invention. The mounting frame comprises a first clamp beam 3 and a second clamp beam 4, which extend in the width direction of the mounting frame, and which are arranged at a distance from each other

Between the first clamp beam 3 and the second clamp beam 4, in the depth direction of the mounting frame 1, the first spacer element 5 and the second spacer element 6 extend so that the clamp beams 3,4 and the spacer elements 5, 6 form the circumference of the mounting frame 1. In the solution according to the embodiment shown in the attached figures, the perimeter of the mounting frame 1 is in the shape of a right-angled quadrilateral. In other words, the first press beam 3 is arranged parallel to the second press beam 4, and the corresponding first spacer element 5 is arranged parallel to the second spacer element 6, so that the spacer elements 5, 6 are perpendicularly transverse to the press beams 3, 4.

An anchoring bracket 2 is arranged on the first clamp beam 3, to which safety equipment, such as a safety wire or a safety rope, can be attached for working on the roof.

The anchoring bracket is attached to the attachment point arranged on the first clamp beam 3. A similar attachment point 7 is also arranged on the second clamp beam 4. Naturally, on the first clamp beam 3, on the second clamp beam

N 4, or both can be arranged with one or more attachment points and the like

N anchor brackets. In the embodiment of Fig. 1, the attachment point and <Q anchoring bracket 7 are arranged centrally with respect to the first clamp beam, but other similar placements are also possible.

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In the embodiment of Fig. 1, the first spacer element 5 and the second spacer element 6 are attached to the first clamp beam 3 and the second clamp beam 4

N with tightening means 8, which are implemented in the press bars 3,4 and spacer elements 5, 6

I with a bolt-and-nut attachment extending through the aligned openings. This enables the first clamp beam 3 and the second clamp beam 4 to be spaced apart from each other in order to place the fixing frame around the smoke exhaust hatch, especially around this frame. When the mounting frame 1 is in place, it is tightened around the smoke exhaust hatch with tightening tools. In the embodiment of Fig. 1, this is done simply by tightening the bolt-and-nut fasteners, although the tightening means can also be implemented in other ways.

When tightening the mounting frame 1 around the smoke exhaust hatch, the pressure surfaces 3a, 3b and 4a, 4b of the clamp beams 3 and 4 are pressed against the smoke exhaust hatch, fixing the mounting frame 1 securely to the smoke exhaust hatch, against its outer surface. From the pattern

Fig. 1 also shows how the clamping surfaces 3a, 3b and 4a, 4b extend in the plane determined by the width and vertical direction of the mounting frame 1

Fig. 2 shows a top view of the mounting frame of Fig. 1. In particular, it can be seen how the pressing surfaces 3a, 4a are located on the inside of the circumference in relation to the rest of the mounting frame 1. This also applies equally to the pressing surfaces 3b, 4b, although these are not visible in the image of Fig. 2.

Fig. 2 also shows how the first clamp beam 3 comprises an inner beam part 3c and an outer beam part 3d, both of which are formed from an elongated profile piece extending in the width direction of the mounting frame 1.

Correspondingly, the second press beam 4 also comprises an inner beam part 4c and an outer beam part 4d. The first spacer element 5 and the second spacer element 6 are each formed from an elongated plate-like body, the opposite ends of which are arranged with transverse folds extending in the width direction of the mounting frame. The tightening means 8 realized with a bolt-and-nut connection extend to the press bars 3, 4 (especially to the outer rewards 3d, 4d) and to the spacer elements 5, 6 of the aligned

S through the holes.

O In addition, Fig. 2 shows the section lines A-A and B-B, the corresponding = 25 section views are shown in Fig. 3a and Fig. 3b.

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E Fig. 3a further shows how the pressing surfaces 3a, — 3b of the first press beam 3 are formed on the sides of the inner beam part 3c, which extend in the vertical direction of the mounting frame 15 and which point to the inner circumference of the mounting frame 1. Pressure surfaces

N 3a and 3b are placed at a distance from each other in the vertical direction of the mounting frame.

N 30 The cross-sectional shape of the inner beam part 3c of the first press bar 3 comprises opposite L-shaped flange parts, and a web part connecting them, whereby the sides of the free ends of the flange parts form two pressing surfaces 3a, 3b for each press bar.

The outer beam part 3d, on the other hand, is formed from U-profile pieces, the cross-sectional shape of which is open towards the outside of the circumference of the mounting frame 1.

Fig. 3b, on the other hand, shows how the inner beam part 3c and 3d are attached to each other with a bolt connection, but the attachment can of course also be done in other ways.

In the embodiment according to the accompanying figures, the second clamp beam 4 is implemented similarly to the first clamp beam 3. In addition, the second spacer element 6 is implemented similarly to the first spacer element 5. However, the fastening frame according to the present invention can be implemented with different first clamp beam 3 and second clamp beam 4, and respectively with the first spacer element 5 and the second spacer element 6 that differ from each other. <t

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REFERENCE NUMBERS

1 mounting frame 2 anchoring bracket 3 first clamp beam 3a, 3b compression surface of the first clamp beam 3c inner beam part of the first clamp beam 3d outer beam part of the first clamp beam 4 second clamp beam 4a, 4b compression surface of the second clamp beam 4c inner beam part of the second clamp beam 4d outer beam part of the second clamp beam 5 first spacer element 6 second spacer -element 7 attachment point

S 15 8 tightening devices

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Claims (10)

PATENT CLAIMS 1. A fastening frame (1) for fastening an anchoring fastener (2) around a smoke trap door, where the fastening frame comprises: - a first press beam (3) and a second press beam (4) arranged at a distance from this, where the press beams (3, 4 ) extends in the width direction of the fastening frame (1); - a first intermediate layer element (5) and a second intermediate layer element (6) arranged at a distance from this, where the intermediate layer elements (5, 6) extend in the depth direction of the fastening frame (1), and - an attachment point (7) for attaching the anchoring fastener to the fastening frame , where the first and second intermediate layer elements (5, 6) extend between the first and second press beams (3, 4) so that the first and second press beams (3, 4) and the first and second intermediate elements (5, 6) form the circumference of the fastening frame (1), where the first spacer element (5) and the second spacer element (6) are fixed between the first and second press beams (3, 4) by means of tensioning means (8), which enable the first press beam (3) and the second press beam (4) is pressed in the direction of each other to fasten the fastening frame (1) around the smoke trap door so that at least part of the outer periphery of the smoke trap door is pressed between the first press beam (3) and the second press beam (4), where at least the first and second press beams (3, 4) comprise a pressure surface (3a; 3b, 4a; 4b) arranged on the inside of the circumference in relation to the rest of the fastening frame (1), adapted to press against the outer periphery of the smoke trap door, whereby the pressure surfaces (3a; 3b, 4a; 4b) of the first press beam (3) and of the second press beam (4 ) faces the inside of the circumference of the fastening frame (1) and extends in a < 25 plane which is determined by the longitudinal and vertical direction of the fastening frame (1), S characterized by the fact that the first press beam (3) comprises an inner beam part in relation O to the circumference (3c) and a relative to the circumference outer beam part (3d) attached = to each other, and the second press beam (4) comprises a relative to the circumference inner N beam part (4c) and a relative to the circumference outer beam part (4d) attached next to each other: 30 where the pressure surfaces (3a; 3b, 4a; 4b) are arranged on the inner beam parts (3c, 5 4c), and the outer beam parts (3d, 4d) are aligned with the spacer elements (5, 3 6). S 2. Mounting frame according to patent claim 1, characterized in that the pressure surface (3a, 3b) of the first press beam (3) is formed on one side of a long profile piece extending in the width direction of the mounting frame (1), which side extends in the mounting frame (1) vertical direction, and the pressure surface (4a, 4b) of the second press beam (4) is formed on one side of an elongated profile piece with an extension in the width direction of the fastening frame (1), which side extends in the vertical direction of the fastening frame (1). 3. Fixing frame (1) according to patent claim 1 or 2, characterized in that the first press beam (3) and the second press beam (4) each comprise two pressure surfaces (3a 3b; 4a, 4b). 4. Fastening frame (1) according to one of the previous patent claims 1 to 3, characterized in that the inner beam parts (3c, 4c) are formed of elongated profile pieces with an extension in the width direction of the fastening frame, where the cross-sectional shape of the profile pieces includes opposed L-shaped flange parts and a web part, which joins these, where the sides of the free ends of the flange parts form two pressure surfaces (3a; 3b, 4a; 4b) for each press beam (3, 4). 5. Fastening frame (1) according to one of the previous patent claims 1 to 4, characterized in that the outer beam parts (3d, 4d) are formed of a profile piece extending in the width direction of the fastening frame. 6. Fastening frame (1) according to patent claim 5, characterized in that the outer beam parts (3d, 4d) are formed of U-shaped profile pieces, where < 25 the cross-sectional shape of the profile pieces is open to the outside of the fastening frame (1) circumference. N & O 7. Fastening frame (1) according to one of the preceding patent claims 1 to 6, = characterized in that the tensioning means (8) comprise threaded fasteners. N E: 30 8. Fastening frame (1) according to patent claim 7, characterized in that the first spacer element (5) comprises an elongated disc-shaped 12 piece in whose opposite ends transverse folds are arranged extending in the N width direction of the fastening frame, and N the second spacer element (6) comprises an elongated disc-shaped piece in the opposite ends of which are arranged transverse folds extending in the width direction of the fastening frame. 9. Fastening frame according to patent claim 7 or 8, characterized in that the tensioning means (8) comprise male threaded fasteners extending through openings arranged in line in the press beams (3, 4) and intermediate elements (5, 6), as well as female fasteners corresponding to these fasteners . 10. Fastening frame according to patent claim 7, characterized in that the spacer elements comprise a fully threaded stud screw extending through the openings arranged in the press beams (3, 4), where the tensioning means (8) comprise female threaded fasteners arranged at the opposite ends of the stud screws. <t N O N O <Q O N I a a I LO LO Ql N O N