WO2019069246A1

WO2019069246A1 - Hammock safety system

Info

Publication number: WO2019069246A1
Application number: PCT/IB2018/057673
Authority: WO
Inventors: Manuel Lüscher; Daniel Zaugg
Original assignee: Zaugg Construction GmbH
Priority date: 2017-10-04
Filing date: 2018-10-03
Publication date: 2019-04-11
Also published as: CN111247299A; AU2018345797A1; DE102017123014A1; EP3717718A1; WO2019069246A9

Abstract

The invention relates to a spacer element (22) for supporting two yoke timbers (18) of a slab formwork (1), which run parallel to one another and are supported on props (12), in a transverse direction (4) transversely to the yoke timbers (18) and transversely to the props (12), comprising a beam element (24) having two opposite end sides, on which there are arranged bearing elements (26, 26') for taking up transverse forces in and against the transverse direction (4) from the yoke timbers (18), characterised by holding elements (33) on the end sides of the beam element (24) for fastening a net (27).

Description

Hammock Safety System

description

The present invention relates to a spacer element for supporting two mutually parallel supported on ceiling supports Jochhölzern a slab formwork and a fall protection system for a slab formwork with the spacer element.

Spacers for slab formwork are known for example from EP 0049096 AI.

The object of the invention is known spacer elements for

Improve slab formwork.

The object is solved by the features of independent claim 1. Preferred developments are the subject of the dependent claims.

According to one aspect of the invention, a spacer element for supporting two parallel running on ceiling supports supported yokes of a slab formwork in a transverse direction transverse to the Jochhölzern and transverse to the ceiling supports a beam element with two opposite end sides, where bearing elements for absorbing transverse forces in and against the Transverse direction are arranged from the yoke woods. The specified spacer element according to the invention comprises holding elements on the end sides of the beam element for fastening a network. The specified distance element is based on the consideration that when building a slab formwork of the fitter first builds the framework with the floor props, the Jochhölzern and the spacer elements and then hangs on the scaffold the actual formwork ceiling. When laying the formwork ceiling are high demands on the

Balancierfähigkeit the fitter asked. However, too

To take precautionary measures for emergencies when, for example, the fitter becomes dizzy unexpectedly. In the formwork ceiling mentioned above, the spacer elements have a very small distance from each other. This has the advantage that the fitter could grab a neighboring spacer element in a fall. In addition, it would be possible to attach the Monteuer to the Jochhölzern. In any case, the design has a high number of parts, which are very time consuming to assemble. The leash limits beyond the range of motion of the mechanic, which further increases the time required when placing the shuttering ceiling in the air. The specified distance element goes here with the suggestion

To attach retaining elements for a network, another way. The entire framework can be built first and the network to the

Clamp holding elements. The net covers a large collecting area, so that the spacer elements and the yoke woods can be arranged at a large distance from each other. The mechanic does not have to line up and can hang up the formwork ceiling with the greatest possible freedom of movement. The time required to build a slab formwork is thereby significantly reduced. In a further development of the specified spacer element are the

Holding elements arranged on the bearing elements. In this way, the network with the largest possible area can be spanned.

In a preferred embodiment of the specified spacer element, the holding elements are formed integrally with the bearing elements. In this way, the holding elements are fixed to the bearing elements held and provide a very high hold for the network. For integral formation, the bearing element and the retaining element

for example, be welded. An alternative embodiment would be to carry out the holding element in the bearing element, for example when the bearing element has a suitable opening as a holding element in which the net could be knotted.

In another development of the specified spacer element, the retaining elements are suspension elements to which the net can be suspended. The hanging of the net is not only in building the

Ceiling formwork very time-saving, the net can be also at

Remove the slab formwork very quickly.

In an additional development of the specified spacer element, each hooking element comprises a hook. The hook can be easily a detachable connection between the network and

Realize hooking element, without the net on the one obvious

Positive locking element must be attached. However, a loop-shaped design of the suspension element would be conceivable, in which case the network would have to be hung for example by means of carabiners.

In a particular embodiment of the specified spacer element, each hooking element comprises a further hook, wherein the hooks are arranged in each suspension element anti-parallel and spaced from each other. The two anti-parallel hooks secure the hinged net against accidental snags

Slipping out.

In yet another development of the specified spacer element, the bearing elements are attachable to the yokes and on the

Sliding wooden yokes. In this way, the distance between the spacer elements is arbitrarily adjustable and, for example, to the

maximum tensile load capacity of a network adaptable. In an expedient development of angegenen spacer element include the sliding on the yoke bearing elements a Fixation point for the attack of a fixing agent, which fixes the bearing element against displacement on the yoke on this. The

Fixing means may be a screw, a nail, a rivet or the like. With the fixative is in use of the network, if an installer falls into the network, prevents the carrying the network

Move spacer elements towards each other.

According to a further aspect of the invention, a

Fall protection system for a ceiling circuit two parallel to each other carried on ceiling supports yoke and two the yoke timbers in a transverse direction transverse to the yoke and transverse to the floor supports supporting specified spacers.

In the specified crash system, the two spacers should always be spaced less than 2.50 meters apart

permissible maximum loads on the slab formwork not to

exceed.

According to a further aspect of the invention, a method for securing a fitter on a slab formwork when placing a shuttering slab on the slab formwork comprises the steps of: setting up the slab formwork by erecting ceiling supports and connecting the slab props with yoke beams in a longitudinal direction transverse to the slab props and connecting the slab props with spacers in a transverse direction transverse to the floor props and transverse to the yoke timbers and attaching a net to the erected one

Ceiling formwork at least halfway up the floor supports such that a spanned by the transverse direction and the longitudinal direction and limited by the yoke wood and the spacer elements surface is covered by the network.

The above-described characteristics, features and advantages of this invention, as well as the manner in which they will be achieved, will become more apparent in connection with the following description of the embodiments which will be described in connection with the accompanying drawings. Show it: 1 is a schematic view of a ceiling formwork,

2 is a schematic view of a space on a bearing element in the slab formwork of Fig. 1,

Fig. 3 is a schematic side view of a beam element in the slab formwork of Fig. 1, Fig. 4 is a schematic view of a section of the room

Beam element of Fig. 3,

Fig. 5 is a schematic view of space at one end of a

Distance element in the slab formwork of FIG. 1,

6 is a schematic perspective view of the spacer element of FIG. 5, suspended from a yoke wood and carrying a net, FIG.

Fig. 7 is a schematic perspective view of a bearing element of an alternative slab formwork, and

Fig. 8 is a schematic perspective view of the alternative slab formwork in a partially assembled state. In the figures, the same technical elements with the same

Numeral provided and described only once. The figures are purely schematic and above all not the actual

geometric relationships again. Reference is made to FIG. 1, which shows a schematic view of space on a slab formwork 1. The slab formwork 1 is placed in a room 2, which is in a longitudinal direction 3, a

Transverse direction 4 and a height direction 5 extends, and is delimited by a bottom 6 and 8 walls. The room 2 can be entered via a door 10. The task of the slab formwork 1 is to hold a formwork ceiling not shown on a concrete ceiling can be poured around the room 2 on the floor 6

einhausen on the opposite side.

The slab formwork 1 includes a variety of

Ceiling supports 12, each one on the floor 6 in the

Height direction 5 established column foot 14 and on the

Column foot 14 opposite side have a fork element 16. The ceiling supports 12 are constructed telescopically, so that a distance between the column foot 14 and the fork element 16 can be adjusted.

In the fork elements 16 of the ceiling supports 12 are in the

Held longitudinally 3 extending yoke 18, on which the shuttering cover not shown can be placed. The

Jochhölzer 18 are formed shorter in the longitudinal direction 3, as to be produced on the slab formwork 1 ceiling, which is why in the

Longitudinal 3 multiple yokes 18 strung together and are connected to each other in a shock area 20 of shock. Of these joint areas 20 are shown in FIG. 1 not all referenced by a reference numeral.

To accommodate forces in the transverse direction 4 18 spacer elements 22 are arranged between the yoke, the between the

Keep wooden beams 18 at a constant distance and avoid that the structure falls over, except for the yoke 18

Formwork cover is laid. Each spacer element 22 comprises a beam element 24 extending in the transverse direction 4, at the two ends of which in the transverse direction 4 a respective bearing element 26 mounted in the yoke woods 18 is held in the form of a connecting bracket.

When building the slab formwork 1 spacer elements 22 are applied to the joint areas 20. The then remaining spacer elements 22 are evenly distributed to the areas between the joint areas 20 and / or on the areas between a joint area 20 and a wall 8. At the individual bearing elements 26 nets 27 are held in the present embodiment. A fitter can run on the yoke wood 18 for mounting the above-mentioned formwork ceiling. If the fitter loses his balance during this work, the nets catch him.

In the following, two different designs for fastening the nets will be described. The first embodiment is the subject of FIGS. 2 to 6. The second embodiment is the subject matter of FIGS. 7 to 10. Both embodiments can be combined with one another in any desired manner.

Reference is made to Fig. 2, which shows a schematic view of space on one of the bearing elements 26 in the slab formwork 1 of Fig. 1.

The bearing element 26 has a hook 28 with a in the

Height direction 5 extending hook front plate 29 and

Hook back plate 30, which are connected to each other at the top viewed in the vertical direction 5 with a hook deck plate 31.

From the hook front plate 31 extends in the transverse direction 4 away from the hook 28, a positive connection element in the form of a slip-on sleeve 31, to which one of the beam elements 24 of FIG. 1 is plugged. To secure the beam element 24 on the slip-on sleeve 31, a passage opening 32 is guided by the lateral surface of the slip-on sleeve 31, into which a safety bolt can be inserted, as referenced, for example, in FIG. On the

Aufsteckverbindung between the bearing element 26 and the

Beam element 24 will be discussed in more detail later.

Seen in the height direction 5 below the slip-on sleeve 32, a holding element 33 is arranged. The holding element 33 in the present embodiment comprises a first hook 34, which in a plane defined by the transverse direction 4 and the height direction 5 plane

anti-parallel to a second hook 35 is located. Antiparallel means in this context that a hook opening 36 for inserting a

Knit, a ring or the like of the first hook 34 seen in a different direction at least in the transverse direction 4, as a Hook opening 36 of the second hook 35. In order for the aforementioned rope or ring to be inserted into the two hooks 34, 35, the two hooks 34, 35 must be spaced apart at a distance 37 in the longitudinal direction 3.

Seen in the height direction 5 below the retaining element 33, a further passage opening 32 is formed by the hook front plate 29, which will be discussed in more detail later. Before discussing the use of the bearing element 26 of FIG. 2 in the slab formwork 1, the first

Beam elements 24 are explained in more detail with reference to FIGS. 3 and 4, in which one of the beam elements 24 is shown schematically. The beam element 24 is analogous to the ceiling supports 12 as

Telescopic rod with a first sub-pipe 38 and a run in the first part of the pipe 38 second sub-pipe 39 executed.

The first sub-tube 38 has a not shown in Fig. 3

Inner diameter greater than the outer diameter of the

Aufsteckhülse 31. Thus, the first part of the tube 38 on the

Attach sleeve 31 of the bearing elements 26. At its two ends, the first part of the tube 38 each have a guided through the lateral surface passage opening 32, which is designed in the same manner as the passage opening 32 through the lateral surface of the

Aufsteckhülse 31 of the bearing element 26. Will the first part of the tube 38 with the second part of the tube 39 opposite end of the

Attached sleeve 31, the two can be

Through holes 32 overlap one another, so that the above-mentioned safety pin through the

Through openings 32 can perform.

The second sub-pipe 39 has a first pipe part 40 and a second pipe part 41 concentrically mounted on the first pipe part

Tube portion 40 has a smaller outer diameter than the second tube portion 41. The outer diameter of the first tube portion 40 is further smaller than the inner diameter of the first sub-pipe 38, so that the first pipe part 40 can be inserted into the first sub-pipe 38.

On the first tube part 40 of the second part of the tube 39 is a row of holes 42 lying on an axially extending straight line

Through openings 32 through the lateral surface of the first

Pipe part 40. Each passage opening 32 of the row of holes 42 can be congruent over the passage opening 32 at the end of the first sub-pipe 38, into which the second sub-pipe 39 is inserted. In this way, the two sub-pipes 38, 39 can be fixed to one another in different axial positions with a securing bolt 43. At the first tube part 40 opposite end of the second

Pipe part 41 is another passage opening 32 which acts in the same manner as the passage opening 32 at the other end of the telescopic rod, which is why to dispense with an extra description.

The securing bolt 43 has a bolt head 44, from which the actual can be inserted into the passage openings 32

Bolt element 45 extends away. Optionally, the bow spring 44 shown in Fig. 4 can be arranged to pivot about the bolt head 44, with which the bolt element can be radially secured to the telescopic rod.

An alternative embodiment of the securing bolt 43 is shown in FIG. 5, in which a schematic view of one end of a

Distance element 22 can be seen.

The safety pin 43 is there as a screw with a

Screw 47 and a bolted on the opposite side nut 48 executed.

With reference to FIG. 6, which shows a schematic view of space at one of the yokes 18 suspended spacer element 22 with a network suspended therefrom 27, the assembly of the slab formwork 1 with the attached networks 27 will now be briefly explained. After the Jochhölzer 18 are placed on the ceiling supports 12, the spacer elements 22 are assembled. For this purpose, the beam element 24 designed as a telescopic tube 38, 39 is initially adjusted in its length. Subsequently, the bearing elements 26 are placed on the beam member 24 by the Aufsteckhülsen 31 are inserted into the ends of the telescopic tube 38, 39. Finally, the Aufsteckhülsen 31 and the ends of the telescopic tube 38, 39th

fixed against each other with the securing bolt 43. The spacer elements thus formed are now inserted between the yoke woods 18 and, taking into account the position of the abovementioned abutting areas 20 in their position on the longitudinal axis 3

positioned. After the positioning of the spacer elements 22 is by the

Through opening 32 of the hook front plate 29 a fixing means 49, such as a screw, a nail or the like driven into the yoke 18 behind it, so that the individual spacer elements 22 in the

Longitudinal direction 3 are fixed to the Jochhölzern 18.

Finally, the net 27 is suspended from the holding elements 33. The net 27 has a peripheral outer cable 50, on which several smaller meshed cables 51 are held inside. The outer cable 50 is used to hang the

Net 27 inserted into the distance 37 between the two hooks 34, 35 of the holding element 33 and then inserted through the hook openings 36 in the hooks 34, 35. After this has been done on all support members 33, the net 27 is suspended, and the yokes 18 may be entered by the installer to design the formwork ceiling.

Reference is made to Fig. 7, which is a schematic perspective view of an alternative bearing element 26 ^λ one in Fig. 8 in a

partially assembled state shown alternative ceiling formwork. The alternative bearing element 26 ^λ the alternative slab formwork has a base plate 52, through the center of a

Linkage bushing 53 is guided for a rod assembly, not shown. At the bottom viewed in the height direction

Base plate 52 are seen in the transverse direction 4 on the

attached to opposite sides of the push-on sleeves 31. Like on

Bearing element 26 of FIG. 2, the slip-on sleeves 31 may be integrally connected to the base plate 52. However, the Aufsteckhülsen 31 are not axially but tangentially placed here, and in each case only over an axial portion. On a radially opposite to the base plate 52 side, the push-on sleeves each have a

Retaining element 33, which basically can be constructed in the same way as the holding element 33 of FIG. 2. In the present embodiment, however, the holding elements 33 are designed as closed eyelets 54 by way of example. Incidentally, the slip-on sleeves 31 of the

Alternative bearing element 26 through openings 32 for fixing the beam elements 24.

As beam elements 24, the in Figs. 3 and 4 already

described beam elements 24 are used.

The alternative bearing element 26 ^λ is suitable when the fork member 16 is placed separately on the ceiling support 12. In this case, the alternative bearing member 26 can have ^λ as shown in Fig. 8, between the

Ceiling support 12 and the fork member 16 are held. The

Fork element 16 in this case has the above-mentioned

Gestängestummel on its viewed in the vertical direction 5 underside, which is inserted through the linkage passage 53 axially end into the ceiling support 12.

To set up the alternative slab formwork, first the floor supports 12 can be connected to the spacer elements 22 and only then the yoke woods 18 can be placed on the floor supports. The order is arbitrary here. Another advantage of the alternative slab formwork is a reduced number of parts because always at the same time two slip-on sleeves 31 are arranged on a base plate 52.

However, the spacers 22 thus produced can no longer be positioned arbitrarily, because a plurality of spacer elements 22 are mechanically connected to one another by the common base plate 52.

The nets 27 can be attached to the holding elements 33 in the form of the eyelets 54 in FIG. 8, for example via snap hooks.

In principle, the holding elements 33 could also be attached to every other place of the slab formwork 1. That's the way to go

For example, screw the retaining elements 33 in the yoke woods 18 or hold there with other suitable fasteners. An alternative or additional attachment of the holding elements 33 to the ceiling supports 12 would be conceivable, such as ropes or straps.

Claims

claims

1. spacer element (22) for supporting two mutually parallel on ceiling supports (12) carried yoke (18) a slab formwork (1) in a transverse direction (4) transversely to the

Jochhölzern (18) and transversely to the ceiling supports (12) comprising a beam member (24) having two opposite end faces on which bearing elements (26, 26 ^λ) for absorbing transverse forces in and opposite to the transverse direction (4) of the Jochhölzern (18 ) are arranged, characterized by holding elements (33) on the end sides of the

Beam element (24) for fastening a net (27).

Second spacer element (22) according to claim 1, characterized in that the holding elements (33) on the bearing elements (26, 26 ^λ ) are arranged.

3. spacer element (22) according to claim 2, wherein the holding elements (33) integral with the bearing elements (26, 26 ^λ ) are formed.

4. spacer element (22) according to any one of the preceding claims, characterized in that the holding elements (33) are suspension elements to which the network (27) can be suspended.

5. spacer element (22) according to claim 4, characterized in that each hooking element comprises a hook (34).

6. spacer element (22) according to claim 5, characterized in that each hooking element comprises a further hook (35), wherein the hooks (34, 35) in each suspension element anti-parallel and

spaced (37) are arranged to each other.

7. spacer element (22) according to any one of the preceding claims, wherein the bearing elements (26) on the Jochhölzer (18) attachable and on the Jochhölzern (18) are displaceable.

8. spacer element (22) according to claim 7, wherein the on the yoke woods (18) displaceable bearing elements (26) a

Fixing point (32) for engaging a fixing means (49), which fixes the bearing element (26) against displacement on the yoke (18) at this.

9. fall protection system for a ceiling circuit (1,) comprising two parallel to each other on ceiling supports (12) worn yoke (18) and two the yokes (18) in a transverse direction (4) transversely to the yoke (18) and transversely to the ceiling supports (12) supporting spacer elements (22) according to one of the preceding

Claims.

10. A method for securing a fitter on a slab formwork (1,) when placing a formwork ceiling on the slab formwork (1,), comprising:

- Setting up the slab formwork (1,) by setting up

Ceiling supports (12) and connecting the floor props (12) with

Yoke (18) in a longitudinal direction (3) transverse to the

Ceiling supports (12) and connecting the ceiling supports (12) with

Spacer elements (22) in a transverse direction (4) transversely to the

Ceiling supports (12) and transverse to the Jochhölzern (18), and

- Fixing a network (27) on the established slab formwork (1,) at least halfway up the ceiling supports (12) such that one through the transverse direction (4) and the longitudinal direction (3) spanned and by the Jochhölzer (18) and the Spacer elements (22) limited area of the network (27) is covered.