DE8222012U1 - HORIZONTAL FRAME FOR PRE-MADE WORK FRAME - Google Patents

Description

cc c

· Ι et

DlpL-Ing. FrledrlA Koehne Patent attorney D 5000 KaJn 1 / Postf. 250265

Applicant: Plettac GmbH

Steel construction and drop forge 5970 Plettenberg, Köbbinghausen

August 3, 1982

- 1 -

Horizontal frame for prefabricated work scaffolding

The innovation relates to a horizontal frame for prefabricated work scaffolding the box or C-profiles provided on the long sides, which are connected to each other by cross members.

Horizontal frames of the aforementioned type are prefabricated, independently transportable structural units already known for prefabricated work scaffolding, both for mobile scaffolding and for stationary scaffolding. The work scaffolding usually has four vertical uprights, which may be arranged in sections one above the other and {

be attached to each other. On these stands |

then the horizontal frames at their four |

Fixed corners. The horizontal frames have |

Coverings, e.g. B. made of wood or roughened MetaE panels, so that workers can walk on them. So that the workers on the respective Platforms of the horizontal frame can reach, often the pairs of stands on the front sides of the relevant work scaffolding connected to one another by means of ladder rungs, so that the workers can rise outside. However, this is very tedious and also not without risk, especially

if the worker concerned has to carry material or tools with him. To enable an ascent or descent on the inside are
the horizontal frames near the front pairs of stands are provided with access flaps which
can be folded upwards around hinges on the long sides. Since then the rungs between the; Pairs of stands are vertically on top of each other, i

the ascent and descent quite tedious. One therefore has J

loose in the individual levels of the work scaffolding j

Ladders erected, which, however, are particularly unsafe if they are improperly erected because

they can slip and fall over. It comes to j

admitted that these loosely erected ladders at nor— j

painting standing in the way of work. In order to {

in connection there is the further disadvantage, |

that the ladders are put away and that they are no longer readily available at all times or that
the ladders stolen from the construction site

especially since they are mostly made of light metal

and are therefore quite valuable. j

The innovation is based on the task of creating a! To create a horizontal frame on which a

Head is integrated in a structural unit in such a way that

that it enables a safe ascent and descent- {

light, handy at all times, |

that they are also housed in this way when not in use j

can be that they do not get in the way of jj

stands and that the ladder does not finally escape- |

can be det. 1

According to the innovation, the task is solved by
that a ladder cannot be lost on a cross member

and is pivotally mounted so that it is in the inwardly pivoted condition within of the frame is located and is held by means of a bracket. This is how the Another advantage that the horizontal frame with

the inwardly folded ladder can be easily transported and the ladder not outwards survives, the weight of the ladder being low

ί is and does not matter.

10

Advantageous refinements of the innovation result from the subclaims

An embodiment of the innovation is shown schematically in the drawing, namely show Figure 1 is a front view of part of a work scaffolding with inserted horizontal frames,

Figure 2 shows a detail from Figure 1 according to the dash-dotted circle II

on an enlarged scale, FIG. 3 shows a cross section according to this Section line III - III in FIG. 1, FIG. 4 shows a partial cross section according to

Section line IV - IV in Figure 3 and

FIG. 5 shows a partial section along section line V - V in FIG . K.

Figure 1 illustrates in a schematic representation an embodiment of a work scaffold with sections vertically one above the other arranged uprights 1, 2, 3i ^ * 5 and Corresponding additional stands are located

parallel to the uprights shown at a distance behind the image plane. At these stands essentially rectangular horizontal frames 7, 8 and 9 are fastened in layers one above the other. Each horizontal frame is equipped with a stiffening flap 10, 11 and 12. 'which can be folded up around hinges,

% Where the pivot axes of the hinges are

run moderately parallel to the image plane.

] 10 The fastening of the horizontal frame with the

j stands are made, for example, by means of tabs

j 13 * <? ie are provided with a hole and

via a hook 23, e.g. on the stand 2, according to

Figure 2, can be pushed over and locked in a suitable manner.

Each horizontal frame has box or C-profiles 2? and 28, which are connected to one another by cross members 17, 18 and 19 and, if necessary, further cross members.

On one of the cross members, specifically expediently in each case on an outer cross member 17 of the horizontal frame, a ladder l4 resp.

15 or Ib attached to each horizontal frame captive and pivotable in such a way that they are in the inwardly pivoted state according to the arrow in Figure 2 within of the frame 7 and, as shown in FIGS

and k make it clear that it does not protrude below the C-profiles 27 and 28.

For captive retention of each ladder are according to the example shown

IS * »*

CCI * ■

E C · C ■ · *

t C K ■ ■

the cross member 17 pipe pieces 24 or eyelets inextricably attached, which encompass the uppermost cross member 25 of the ladder l4. The same applies mutatis mutandis to the other conductors 15, 16. Advantageously, there are two pipe pieces 24 or eyelets at a distance from one another and a ± _m area between the longitudinal spars 2O. 21 of the ladder l4 welded to the cross member or permanently screwed. It goes without saying that

^ O ^d i ^e ladder in addition to the top cross member has further cross members 22 (Figure 3) or ladder rungs. According to the embodiment of Figure 2, the pipe section Zh by welds 26 on the lower inner edge of the transverse

1 = carrier 17 firmly attached. In general, the ladders and the metal parts of the horizontal frame are made of light metal, so that such a welded connection can be made without difficulty. In the case of different materials, however, aas can also choose a different type of fixed connection or a different configuration of the connection means instead of the pipe sections Zk. It is essential that the conductor 14 cannot be easily detached from the cross member 17.

Appropriately, each conductor is 14, 15 »16 on a cross member 17 below an edge of an access hatch 10 or 11 or 12, and shown in Figure 1, attached, and Although the ladders and the access hatches are laterally offset from floor to floor, 50 daft jsds access hatch unobstructed by

Opened from above or below and each individual ladder in the operating position or in the rest position can be brought. Corresponding to the upper level or the stepping surface of the step-through every horizontal frame is flap with a Cover 29, e.g. made of wood or of roughened metal plates or the like.

A bracket is provided to hold each ladder at rest. This holder has at least one spring clip 30 which engages the ladder in the area of the foot of the latter. Conveniently, two spring brackets 30 on a second cross member l8 of the horizontal frame mounted so that they cooperate in the retracted position of the printed circuit l4 with the longitudinal beams 20, 21, the longitudinal bars that according to FIGS h and 5 teiliscexse surround. Each spring clip 30 consists of an essentially partially cylindrical spring steel clip which, according to FIG. In this way, the ladder can pivot upwards in order to bring it into position, so that the two legs of the spring steel bracket spread apart when the relevant longitudinal beam of the ladder is pressed in and then hold the longitudinal beam tight. Each spring steel bracket is expediently connected to the cross member 18 of the horizontal frame by rivets 33.

ι ape · ** - »

j By this way of attaching the ladder to the hori- ■

I zontaJLrahmen gives sieve, the essential advantage,

• that the ladder can be seen from below as well as from

[above after opening the relevant via

i 5 flap from rest position to operating position

L or vice versa can bring.

Claims (7)

Protection claims: 1. Horizontal frame for prefabricated work scaffolding with box or C-profiles provided on the long sides, which are connected to one another by cross members,
characterized, that ai? a cross member (17) a ladder (14) captive and so pivotally attached is that it is found in the inwardly pivoted state within the frame (7; 27, 28) and is held by means of a holder (30). 2. Horizontal frame according to claim 1,
characterized, that on the cross member (l7) pipe sections (24) or eyelets are inextricably attached, which the top Grip the cross bar (25) of the ladder (l4). 3. Horizontal frame according to claim 2,
characterized, that two pipe pieces (24) or eyelets at a distance from one another and in the area between the longitudinal spars (20, 2l) of the conductor (l4) welded to the cross member (17) or permanently screwed are " 4. Horizontal frame according to one of the preceding Requests, characterized, that the ladder ilk) is attached to a cross member (17) below an edge of a pass-through flap (10). 5 · Horizontal frame according to one of the preceding claims, characterized, that the holder has at least one spring clip <30), which is located in the area of the foot of the Head (l4) attacks this. 6. Horizontal frame according to claim 5i characterized, that two spring clips (30) are attached to a second cross member (18) in such a way that they "'! in the folded position of the ladder ilk) interact with their longitudinal spars (20, 21). 7. Horizontal frame according to claim 6, characterized in that that each spring clip (30) consists of a substantially part-cylindrical on the underside there is a gap free-floating spring steel bracket, the ends (31 «32) of which are bent outwards x * ach are, and that the spring steel bracket is connected to the cross member (18) by rivets (33) is·