EP2706167B1

EP2706167B1 - Wall bracket

Info

Publication number: EP2706167B1
Application number: EP13183469.9A
Authority: EP
Inventors: Hannu Ahola; Ilkka Kurkela
Original assignee: Den Finland Oy
Current assignee: Den Finland Oy
Priority date: 2012-09-10
Filing date: 2013-09-09
Publication date: 2019-08-07
Anticipated expiration: 2033-09-09
Also published as: RU141467U1; EP2706167A3; FI10031U1; FI10835U1; EP2706167A2

Description

Background of the invention

The invention relates to a rest on the wall - type of wall bracket according to claim 1.
In house building, scaffolds are used alongside a wall to enable a worker to move high enough so as to perform the necessary work, such as mounting of roof trusses onto wall elements or mounting or painting of eaves boarding or sheathing for eaves. Conventional scaffolds rest on the ground, which means that the ground has to be evened out, and such scaffolds resting on the ground are slow to assemble and disassemble and, in order to achieve stability, require that the legs of the scaffold settle on a sufficiently large area against the ground. Conventionally, fall arresting has been implemented by means of J-hooks, which are separate with respect to the bracket and mounted on ends the roof trusses, and horizontal stops passing therethrough, but owing to their location, the J-hooks may interfere with working.
From WO9820215 is known a bracket to be fastened to a wall and comprising a wall rail whereto a horizontal beam which extends away from the wall is fastened and on which the actual working platform lies, and on the horizontal beam rests a rail post on which horizontal fall arrest boards may be provided to rest. However, this solution is not sufficiently versatile to be able to provide sufficient applicability to different tasks.
FR 1 411 731 A discloses a rest on the wall - type wall bracket according to the preamble of claim 1.

Brief description of the invention

An object of the invention is thus to provide a novel wall bracket for construction work so as to enable the aforementioned problems to be solved.
The object of the invention is achieved by a rest on the wall - type of wall bracket according to claim 1.
Preferred embodiments of the invention are disclosed in the dependent claims.
The wall bracket according to the invention provides several advantages. A significant advantage is that the structure is highly applicable to work to be performed at different heights and mutually different work phases. The structure is also easy to mount, remove and move to another target. In comparison with brackets resting on the ground and fall arrests implemented by means of J-hooks, the invention makes it unnecessary to provide the eaves structures with separate structural fall arrests required by safety regulations.
Next, the invention will be explained with reference to the accompanying drawings, in which:

Figure 1 shows fastening of a supporting beam to a wall,
Figure 2 shows an early stage in installation of a working platform frame of a bracket structure prior to the working platform frame being lifted up and locked to rest on a support structure,
Figure 3 shows the up-lifted and locked-up working platform frame together with working platforms prior to installation of a rail post,
Figure 4 shows the arrangement with a rail post,
Figure 5 shows the structure according to Figure 1 with markings designating enlargements according to Figures 6 to 8 added thereto,
Figure 6 shows enlargement A of Figure 5 related to fastening of the support structure to a frame of a wall element,
Figure 7 shows enlargement B of Figure 5 related to fastening of the support structure to a wall panel,
Figure 8 shows enlargement C of Figure 5 related to a lower support at a lower end of the support structure,
Figure 9 shows a situation according to Figure 4 with markings designating the enlargement according to Figure 10 added thereto,
Figure 10 shows enlargement D of Figure 9 related to an upper end of a rail,
Figure 11 is an oblique view showing a working platform frame, and
Figure 12 is a direct side view showing the working platform frame.

Detailed description of the invention

First, referring to Figures 1 to 10 in particular, a bracket 100 for use in a construction or another stage of a house or another building 10 is shown. Resting on an erected wall element 12 of the building, a roof truss 14 and, resting thereon, the actual roof covering 16 together with its sheeting are provided. An application may be a one- or two-storey detached house. The wall element 12 or another wall structure is provided with a lining 18, such as a wooden wall panel.
In order to mount, fasten, finish or otherwise treat the necessary structural parts of the house 10 or to perform other work phases, a wall bracket 100 is now provided which is stepwise according to Figures 1 to 4 assembled to rest on a wall 12 of the building 10. Figures 4 and 9 show the wall bracket completed. The invention is suitable for both newbuilding and renovation building.
A wall bracket 100 is thus provided for facilitating construction work, the wall bracket comprising a support structure 110 to be fastened to a wall, and a bracket structure 120 to be placed to rest on the support structure to serve as a work surface and fall arrest for a person 30 or another load.
The bracket structure 120 to be placed to rest on the support structure 110 to be fastened to the wall 12 comprises a working platform frame 150 which forms at least two different height positions and which is provided with an upper support 152 and a lower support 154 for at least partly non-superimposed working platforms 152a and 154a, the working platforms 152a and 154a being shown in Figures 3, 4, and 9.
In an embodiment, the support structure 110 is a beam, a bar or another appropriate uniform structure. The support structure 110 is vertical, allowing the bracket structure, i.e. particularly the bracket frame of the bracket structure 120, to be installed at different heights to rest on the support structure 110, enabled by holes 110a, chambers or other height adjustment members of the support structure 110. Holes 156 and 166 are also holes similar to the holes 110a.
Referring to Figure 6 in particular and also to Figures 1 and 5, the support structure 110 is by means of fastening members 111, such as screws or bolts, fastened to a wall 12, particularly to the frame of a wall element, such as an upper horizontal beam 13 of the wall element 12.
According to the figures, in an embodiment the wall bracket 100 is fastened to a vertical surface 14 of an exterior of the wall element 12, i.e. without the supporting beam 110 of the bracket extending, overhead, to hang down from the upper end of the wall element, since this could interfere with tasks to be carried out in that direction.
It is noted that in an embodiment the upper support 152 of the working platform frame 150 extends farther away from the support structure 110 than the lower support 154; in such a case, the upper working platform 152a may at least partly or even completely be made to extend away from underneath the eaves, i.e. the upper working platform 152a is made to be located outside the eaves line, i.e. sufficiently far away from the wall 12.
In an embodiment, the wall bracket 100 comprises a plurality of support structures 110 to be fastened to a wall in parallel and at a distance from one another and, resting thereon and settling at a distance from one another, parallel working platform frames 150 for the working platforms. These second and third, and so forth, support structures and working platform frames remain behind the corresponding structures 110, 150 shown in the foreground in the figures.
In order to make the amount of free overhead working space as large as possible, the upper support 152 and the lower support 154 comprised by the working platform frame 150 comprised by the bracket structure 120 of the wall bracket 100 are at least mainly non-superimposed for the at least mainly non-superimposed working platforms 152a, 154a. It is seen in Figures 2 to 4 and 9 that the upper support 152 and the lower support 154 comprised by the working platform frame 150 are not at all mutually superimposed and the mutual position of the upper working platform 152a and the lower working platform 154a is also in like manner. In addition to increasing the working space, the manner of implementation in question enables the worker 30 to move unobstructedly in the longitudinal direction of the wall along the working platforms since the end of the upper support 154 facing the wall does not extend so as to form an obstacle to moving along the lower working platform 154a.
Next, reference is made to Figures 2 and 3 in particular as well as to rotational motion of the working platform frame 150 from position 2 according to Figure 2 to the position according to Figure 3. The wall bracket 10 comprises a rotating fastening 155 to 157 between the support structure 110 and the working platform frame 150 by means of which the working platform frame 150 rests on the support structure 110. The rotating fastening comprises e.g. a pin 155, a hole 156 in the support structure 110 and a hole 157 in the working platform frame 150. The rotating fastening 155 to 157 makes the working platform frame 150 easier to install in the support structure 110.
The wall bracket further comprises a locking 165 to 167 by means of which the working platform frame 150, which is by means of the rotating fastening 155 to 157 lifted up and placed to rest on the support structure, is locked into its operating position according to Figure 3.
The locking 165 to 167 comprises e.g. a pin 165, a hole 166 in the support structure 110 and a hole 167 in the working platform frame 150. The rotating fastening 155 to 157, too, may also be seen as contributing to the locking since the pin 155 engages the working platform frame 150 to the support structure 110.
In order for the worker to be able to easily lift the working platform frame into the position according to Figure 3, the rotating fastening 155 to 157 of the working platform frame resides lower than the locking 165 to 167 of the working platform frame. The rotating fastening resides at a lower part of the working platform frame 150; this relates to the location of the hole 157 or another fastening structure 157 in particular.
The rotating fastening 155 to 157 and the locking 165 to 167, and the other holes in the support structure, such as the hole 110a, form the means for changing the height of location of the bracket structure 120 in relation to the support structure 110.
Figure 7 shows enlargement B of Figure 5 related to fastening of a support structure 110 to a wall panel in order to prevent bending. The support structure 110 comprises a support part 110b by means of which a middle section of the support structure 110 or another section between the ends of the support structure 110 is supported on the surface of the wall 12 and through which the support structure 110 may further also be fastened to a panel 18. The support part 110b is fastened to the support structure 110, i.e. the vertical beam 110, by means of a fastening structure, such as bolts 119b.
Figure 8 shows enlargement C of Figure 5 related to a lower support 110c at a lower end of the support structure 110. The lower support 110c enables the lower part of the support structure 110 to be supported on the wall 12. Through the lower support 110c the support structure 110 may further also be fastened to the panel 18. The lower support 110c is fastened to the support structure 110, i.e. the vertical beam 110, by means of a fastening structure, such as bolts 119c.
Next, assembly/installation of the wall bracket will be discussed with reference to Figures 1 to 4. First, according to Figures 1, 5, and 6, the supporting beam 110 is fastened to the surface of the wall 12 at an upper part by means of fastening members 111 and, when necessary, also at a lower part, such as through the support part 110b and the lower support 110c by means of fastening members. Next, according to Figure 2, the working platform frame 150 is installed by means of the rotating fastening 155 to 157, such as a pin-hole structure, to rest on the support structure 110 and, according to arrow E, the working platform frame 150 is lifted up into the vertical position according to Figure 3 and, by means of the locking 165 to 167, i.e. the pin-hole structure, locked. Next, the working platforms 152a and 154a are set in place to rest on the upper support 152 and the lower support 154. If no rail post 170 was already included in the working platform frame, then, according to Figure 4, a rail post 170 is set in place by means of a sleeve or another fastener 171 provided at an upper corner of the outer edge, i.e. far edge, of the working platform frame 150; further, horizontal rails 174 are set in place in clamps 172 for the rail post 170, i.e. rail locks, and horizontal rails 184 are placed in clamps 182, i.e. rail locks, in vertical supports 180 in the area between the working platforms, i.e. behind the lower working platform 152a. The rail posts 170, 180 provide support for horizontal stops 174, 184, forming an integrated fall arrest in the bracket for both working platforms 152a, 154a.
Figure 10 shows enlargement D of Figure 9 related to an upper end of a rail post 170 provided with a clamp, i.e. rail lock 172.
Referring to Figures 11 to 12, the working platform frame 150 comprises for the working platforms an upper support 152 and a lower support 154. The upper support 152 is stabilized by a diagonal support 153. For the rails 174, 184 the working platform frame 150 comprises in the vertical support 180 a rail lock 182 and a fastener 171 for the rail post 170. The working platform frame 150 is formed from profile tubes and frame plates 220 to 221, for instance.
It will be apparent to a person skilled in the art that as technology advances, the basic idea of the invention may be implemented in many different ways, without departing from the scope of the claims. The invention and its embodiments are thus not restricted to the examples described above but may vary within the scope of the claims.

Claims

A rest on the wall-type of wall bracket for facilitating construction work, the wall bracket comprising a support structure (110) to be fastened to a wall (12) with fastening members (111) and a bracket structure (120) to be placed to rest on the support structure (110) as a working surface and fall arrest for a person (30) or another load, and wherein the bracket structure (120) to be placed to rest on the support structure (110) further comprises a working platform frame (150) which is provided with an upper support (152) and a lower support (154) for at least partly non-superimposed working platforms (152a, 154a), said upper support (152) and lower support (154) locating at different height positions, and wherein the wall bracket comprises a rotating fastening (155 to 157) between the support structure (110) and the working platform frame (150), wherein by means of said rotating fastening (155 to 157) the working platform frame (150) rests on the support structure (110), characterized in that the rotating fastening (155 to 157) between the support structure (110) and the working platform frame (150) resides at a lower part of the working platform frame (150).
A wall bracket as claimed in claim 1, characterized in that the upper support (152) and the lower support (154) comprised by the working platform frame (150) comprised by the bracket structure (120) are at least mainly non-superimposed for the at least mainly non-superimposed working platforms (152a, 154a).
A wall bracket as claimed in claim 1 or 2, characterized in that the upper support (152) extends farther away from the support structure (110) than the lower support (154).
A wall bracket as claimed in claim 1, characterized in that the wall bracket comprises a locking (165 to 167) by means of which the working platform frame (150), which is by means of the rotating fastening (155 to 157) placed to rest on the support structure (110), is locked into its operating position.
A wall bracket as claimed in claim 4, characterized in that the rotating fastening (155 to 157) resides lower than the locking (165 to 167) of the working platform frame.
A wall bracket as claimed in claim 1 or 2, characterized in that it comprises a plurality of support structures (110) to be fastened to a wall in parallel and at a distance from one another and, resting thereon and settling at a distance from one another, parallel working platform frames (150) for the working platforms.