US20180119433A1

US20180119433A1 - Bracket and scaffolding comprising a bracket of this type

Info

Publication number: US20180119433A1
Application number: US15/859,696
Authority: US
Inventors: Erzad Mikic
Original assignee: Peri GmbH
Current assignee: Peri GmbH
Priority date: 2015-07-01
Filing date: 2018-01-01
Publication date: 2018-05-03
Also published as: CA2988879A1; DE102015212274A1; WO2017001201A1; EP3317476A1

Abstract

A scaffolding bracket anchors a first vertical scaffolding pole of a scaffolding to a building façade. The bracket has at one end a clamp in order to grip the first scaffolding pole. The clamp can be locked in its closed position. A spring element urges the clamp into the closed position of the clamp with a spring force. In order to actuate the clamp, the bracket can have a first sleeve with a slotted guide by means of which the first sleeve can be transferred from the closed position into the open position of the bracket. The slotted guide may be designed in such a way that the bracket can be locked in the closed position. Furthermore, the clamp can have at least one projection for engaging in the first scaffolding pole in order to allow a particularly secure fastening of the bracket to the first scaffolding pole.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This continuation application claims priority to PCT/EP2016/063820 filed on Jun. 16, 2016 which has published as WO 2017/001201 A1 and also the German application number 10 2015 212 274.3 filed on Jul. 1, 2015, the entire contents of which are fully incorporated herein with these references.

DESCRIPTION

Field of the Invention

The present invention generally relates to scaffolding. More particularly, the present invention relates to a bracket for scaffolding which allows simple and rapid attachment of a scaffolding to a façade.

Background of the Invention

It is known practice for a scaffolding, in particular a façade scaffolding, to be fastened to a building façade via a scaffolding bracket. Here, the connection between scaffolding bracket and scaffolding is achieved as a rule using a so-called standard coupling by means of which a tube of the scaffolding bracket is connected to a scaffolding pole of the scaffolding. Such a standard coupling has two half-couplings, of which a first half-coupling is connected to the tube of the scaffolding bracket and a second half-coupling is connected to the vertical scaffolding pole of the scaffolding. Thus, to install the standard coupling, both half-couplings have to be closed and screwed down. These work steps are time-intensive and complex for a scaffolding erector, in particular if he has only one hand available for closing and screwing the standard coupling. Moreover, standard couplings have to be held available and transported individually.
By contrast, it is an object of the present invention to provide a bracket and a scaffolding which allows simple and rapid attachment of a scaffolding to a façade.

SUMMARY OF THE INVENTION

This object is achieved by a bracket having the features of the independent patent claims. The dependent claims present further expedient developments.
The object according to the invention is thus achieved by a bracket for fastening a scaffolding to a building façade, wherein the bracket has in its longitudinal direction at one end a connection arrangement for fastening the bracket to the building façade and wherein the bracket has at the other end a clamp with a first gripping jaw and a second gripping jaw for fastening the bracket to a vertical scaffolding pole of the scaffolding.
The clamp allows rapid and simple fastening of the bracket to the scaffolding in order to ultimately secure the scaffolding to the façade. Here, the clamp can, by way of its two gripping jaws, engage, for example to its full extent, around the scaffolding pole which is vertical in the mounted state.
What is meant by the clamp is in particular a gripper with two gripping elements, wherein the gripping elements each have the gripping jaw at one end and an actuating portion at the other end, wherein, furthermore, an articulation of the clamp is provided between the gripping jaw and the actuating portion, by means of which articulation the two gripping elements are directly connected to one another and are arranged so as to be pivotable with respect to one another. The actuating portions can prevent an excessively wide opening of the clamp by butting against the inner wall of the first sleeve.
The clamp is preferably formed axisymmetrically to the longitudinal axis of the bracket.
In a preferred embodiment of the bracket, the first gripping jaw has a first projection which, in the closed position of the clamp, can be inserted into a first scaffolding pole aperture in the vertical scaffolding pole of the scaffolding. Inserting the first projection into the first scaffolding pole aperture results in a reliable connection between the clamp and scaffolding pole. Here, the first scaffolding pole aperture can take the form of an indentation. The first scaffolding pole aperture preferably takes the form of a scaffolding pole through-aperture. Here, the clamp according to the invention can constitute a retrofitting solution if a first scaffolding pole aperture already present in the scaffolding pole is used for attaching the scaffolding pole.
With further preference, the second gripping jaw has a second projection which, in the closed position of the clamp, can be inserted into a second scaffolding pole aperture in the first scaffolding pole. In other words, in this case, the clamp has on each gripping jaw a respective projection which can be respectively inserted into a scaffolding pole aperture of the scaffolding pole in order to hold the scaffolding pole particularly securely and reliably. Here, the second scaffolding pole aperture can take the form of an indentation. The second scaffolding pole aperture preferably takes the form of a scaffolding pole through-aperture.
The operation of mounting the bracket into identical first and second scaffolding pole apertures is further facilitated if the second projection is formed in mirror-image fashion to the first projection about a center longitudinal plane of the bracket.
The bracket can have a slotted guide which transfers a movement of a part of the bracket into an opening and closing movement of the clamp. Alternatively or in addition to this, the bracket can have a spring which urges the clamp into the open position of the clamp with a spring force. The spring can act directly or indirectly on the gripping jaws.
In a particularly preferred embodiment of the bracket, the bracket has a spring element against whose spring force the clamp can be opened. The clamp is preferably maintained unactuated in the closed position in order to secure the reliable connection between the scaffolding and façade.
The bracket can have a first sleeve which can be pushed partially over the gripping jaws in order to close the clamp. The spring element can act directly or indirectly on the first sleeve.
In a preferred embodiment of this variant, the first sleeve can be displaced against the spring force of the spring element in order to open the clamp.
In a particularly preferred embodiment of the invention, the clamp can be locked in its closed position in order to prevent unwanted release of the clamp from the scaffolding pole.
In a further preferred embodiment of the bracket, the first sleeve has an at least L-shaped aperture in which a guide projection of the bracket is guided, wherein the bracket is designed in such a way that the clamp can be opened and closed if the guide projection is situated in a first rectilinear portion of the at least L-shaped aperture and is locked if the guide projection is situated in a second rectilinear portion of the at least L-shaped aperture, wherein the second rectilinear portion branches off from the first rectilinear portion. The at least L-shaped aperture allows locking of the clamp in a simple structural design of the bracket. What is meant here by the at least L-shaped aperture is an aperture which has at least two rectilinear portions which extend at an angle to one another.
The at least L-shaped aperture is preferably T-shaped overall, wherein the clamp can be opened and closed if the guide projection is situated in the lower portion of the T shape and is locked in the upper lateral portions of the T shape. As a result, the clamp is locked both if the guide projection is situated in a first lateral portion of the T shape and if the guide projection is situated in a second lateral portion of the T shape. In other words, the first sleeve can be rotated in any desired direction about the longitudinal axis of the first sleeve in order to lock the clamp. As a result, the operation of mounting the bracket according to the invention is decisively simplified.
In a further preferred embodiment of the invention, the bracket is of telescopic design in order to be able to adapt the length of the bracket to the respective distance between the scaffolding and the building façade.
The length of the bracket—in its longitudinal direction, i.e. along its longitudinal axis—can be settable here by a screw connection of the bracket.
In a further embodiment of the invention, the bracket can have a second sleeve with a plurality of engagement through-apertures into which a bolt of the bracket can be inserted, wherein the bolt is guided in a rod or a tube of the bracket in order to set the length of the bracket in correspondence with the unit spacing of the engagement through-apertures. The length of the bracket is thus variable in a structurally simple manner.
The object of the invention is furthermore achieved by a scaffolding having an above-described bracket and a first scaffolding pole of the scaffolding that is vertical in the mounted state, wherein the first scaffolding pole is connected to the clamp. The first scaffolding pole is preferably an inner scaffolding pole, i.e. a scaffolding pole which is nearer the façade in the mounted state of the scaffolding.
Here, the first scaffolding pole preferably has a first scaffolding pole aperture into which the first projection of the bracket is inserted.
With further preference, the first scaffolding pole has a second scaffolding pole aperture into which the second projection of the bracket is inserted. The second scaffolding pole aperture is particularly preferably formed in the first scaffolding pole so as to be opposite to the first scaffolding pole aperture.
The scaffolding can furthermore have a second scaffolding pole which is vertical in the mounted state, wherein the second scaffolding pole is partially inserted into the first scaffolding pole or pushed onto the first scaffolding pole, wherein the second scaffolding pole has a third scaffolding pole aperture which is aligned with the first scaffolding pole aperture, and the second scaffolding pole has a fourth scaffolding pole aperture which is aligned with the second scaffolding pole aperture, and wherein the first projection engages through the third scaffolding pole aperture and the second projection engages through the fourth scaffolding pole aperture. In the embodiment described, the clamp thus not only fastens the scaffolding to the façade but at the same time secures the second scaffolding pole to the first scaffolding pole. A bolt for connecting the second scaffolding pole to the first scaffolding pole can thus be dispensed with.
The first scaffolding pole aperture, the second scaffolding pole aperture, the third scaffolding pole aperture and/or the fourth scaffolding pole aperture of the scaffolding preferably take the form of a scaffolding pole through-aperture.
Further features and advantages of the invention will emerge from the following description of the drawing, from the patent claims and from the drawing.
Here, the drawing is illustrated in such a way that the particulars according to the invention are clearly revealed. The individual features according to the description or the drawing are part of the present invention individually per se or multiply in combinations.

BRIEF DESCRIPTION OF THE DRAWINGS

In the drawing, which illustrates an exemplary embodiment of the present invention:

FIG. 1 shows a sectional view of a plan view of a section of a scaffolding according to the invention comprising a bracket according to the invention;

FIG. 2 shows a side view of the bracket from FIG. 1;

FIG. 3 shows a further partial plan view of the bracket according to FIGS. 1 and 2; and

FIG. 4 shows perspective partial views of the bracket according to FIGS. 1 to 3.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIG. 1 shows a scaffolding 10 comprising a bracket 12. The bracket 12 connects a first vertical scaffolding pole 14 to a building façade (not shown). For this purpose, the bracket 12 has a clamp 16. The clamp 16 has a first gripping jaw 18 and a second gripping jaw 20. A first projection 22 is formed on the first gripping jaw 18. A second projection 24 is formed on the second gripping jaw 20. To fasten the clamp 16 to the first scaffolding pole 14, the first scaffolding pole 14 has a first scaffolding pole aperture 26, here in the form of a scaffolding pole through-aperture, in which the first projection 22 engages. Furthermore, the first scaffolding pole 14 has a second scaffolding pole aperture 28, here in the form of a scaffolding pole through-aperture, in which the second projection 24 engages.
The first scaffolding pole 14 is connected to a second scaffolding pole 30. The first scaffolding pole 14 has a tapered diameter at the upper end. The second scaffolding pole 30 is partially pushed at the lower end onto the upper tapered end of the first scaffolding pole 14. The second scaffolding pole 30 has a third scaffolding pole aperture 32, here in the form of a scaffolding pole through-aperture, which is also engaged through by the first projection 22. The second scaffolding pole 30 furthermore has a fourth scaffolding pole aperture 34, here in the form of a scaffolding pole through-aperture, which is engaged through by the second projection 24. The bracket 12 thus not only anchors the first scaffolding pole 14 with respect to the building façade (not shown) but at the same time connects the first scaffolding pole 14 to the second scaffolding pole 30. Here, the first projection 22 is formed in mirror-image fashion to the second projection 24 about a center longitudinal plane 36 of the bracket 12. The bracket 12 can thus be mounted on the first scaffolding pole 14 when rotated through 180 degrees with respect to its longitudinal axis 44 (see FIG. 3).
FIG. 2 shows the bracket 12 in a side view. It can be seen from FIG. 2 that the clamp 16 is partially guided in a first sleeve 38. If the first sleeve 38 is pulled away—in the direction of an arrow 40—from the clamp 16, the clamp 16 opens. The opening movement of the clamp 16 can be achieved in particular by means of a mechanical guide (not shown), for example a slotted guide in the sleeve 38, and/or a spring force loading of a spring (not shown). A displacement of the first sleeve 38 counter to the arrow 40 transfers the clamp 16 into its closed position shown in FIG. 1.
FIG. 3 shows the bracket 12 in a further partial illustration. It can be seen from FIG. 3 that the first sleeve 38 is displaceable relative to a tube 42 along the longitudinal axis 44 of the bracket 12. In an alternative embodiment of the bracket 12, the tube 42 can take the form of a rod. The further pushing of the first sleeve 38 onto the tube 42 occurs against the spring force of a spring element 46.
In the unactuated state of the bracket 12, the first sleeve 38 is pressed by means of the spring element 46 into the closed position of the bracket 12 as shown in FIG. 3.
A second sleeve 48 is at least partially pushed onto the tube 42. The second sleeve 48 has a plurality of engagement through- apertures 50, 52, 54. In the tube 42 there is provided at least one through-aperture (not shown) which can be arranged in alignment with in each case one of the engagement through- apertures 50, 52, 54. A bolt (not shown) can be inserted into the engagement through- aperture 50, 52, 54 which is oriented in alignment with the through-aperture (not shown) in order to lock the length of the bracket 12 in correspondence with the unit spacing of the engagement through- apertures 50, 52, 54.
FIG. 4 shows a view of the bracket 12 in a partially demounted state. It can be gathered from FIG. 4 that an at least L-shaped aperture 56 is formed in the first sleeve 38. The L shape is indicated in FIG. 4 by a dashed line 58. In FIG. 4, the at least L-shaped aperture 56 is T-shaped. A guide projection 60 protrudes into the at least L-shaped aperture 56. The guide projection 60 is arranged or formed on the tube 42. If the guide projection 60 is situated in the first rectilinear portion 62 of the T shape, the clamp 16 can thus be opened and closed. If, by contrast, the guide projection 60 is situated in one of the two upper lateral portions 64, 66 of the T shape, the clamp 16 is locked in its closed position. The upper lateral portions 64, 66 are part of a second rectilinear portion 68 of the T shape. In other words, the T shape is formed by the rectilinear portions 62, 68.
The two upper lateral portions 64, 66 of the T shape are designed to be mirror-symmetrical to one another with respect to the first rectilinear portion 62. The first sleeve 38 can thus be rotated clockwise or counterclockwise about its longitudinal axis 44 to the same extent in order to lock the clamp 16 in its closed position.
Taking all the figures of the drawing together, the invention thus relates, in summary, to a bracket 12 in the form of a scaffolding bracket in order to anchor a first vertical scaffolding pole 14 of a scaffolding 10 to a building façade. The bracket 12 has a clamp 16 at one end in order to grip the first scaffolding pole 14. The clamp 16 can preferably be locked in its closed position. With further preference, the bracket 12 has a spring element 46 which urges the clamp 16 into the closed position of the clamp 16 with a spring force. To actuate the clamp 16, the bracket 12 can have a first sleeve 38. The first sleeve 38 can have a slotted guide by means of which the first sleeve 38 can be transferred from the closed position into the open position of the bracket 12. Here, the slotted guide is preferably designed in such a way that the bracket 12 can be locked in the closed position. Furthermore, the clamp 16 can have at least one projection 22, 24 for engaging in the first scaffolding pole 14 in order to allow particularly secure fastening of the bracket 12 to the first scaffolding pole 14.

Claims

What is claimed is:

1. A bracket for fastening a scaffolding to a building façade, wherein the bracket has in a longitudinal direction at one end a connection arrangement for fastening the bracket to the building façade, and wherein the bracket has at the other end a clamp with a first gripping jaw and a second gripping jaw for fastening the bracket to a vertical first scaffolding pole of the scaffolding.

2. The bracket as claimed in claim 1, wherein the first gripping jaw has a first projection which, in a closed position of the clamp, can be inserted into a first scaffolding pole aperture in the vertical first scaffolding pole of the scaffolding, and wherein the second gripping jaw has in a second projection which, in the closed position of the clamp, can be inserted into a second scaffolding pole aperture in the vertical first scaffolding pole.

3. The bracket as claimed in claim 2, wherein the second projection is formed in mirror-image fashion to the first projection about a center longitudinal plane of the bracket.

4. The bracket as claimed in claim 3, wherein the bracket has a spring element against whose spring force the clamp can be opened.

5. The bracket as claimed in claim 4, wherein the bracket has a first sleeve which can be pushed partially over the first and second gripping jaws in order to close the clamp.

6. The bracket as claimed in claim 5, wherein the first sleeve can be displaced against the spring force of the spring element in order to open the clamp.

7. The bracket as claimed in claim 6, wherein the clamp can be locked in its closed position.

8. The bracket as claimed in claim 7, wherein the first sleeve has an at least L-shaped aperture in which a guide projection of the bracket is guided, wherein the bracket is designed in such a way that the clamp can be opened and closed if the guide projection is situated in a first rectilinear portion of the at least L-shaped aperture and is locked if the guide projection is situated in a second rectilinear portion of the at least L-shaped aperture, wherein the second rectilinear portion branches off from the first rectilinear portion.

9. The bracket as claimed in claim 8, wherein the at least L-shaped aperture is T-shaped, wherein the clamp can be opened and closed if the guide projection is situated in the lower portion of the T shape and is locked in an upper lateral portions of the T shape.

10. The bracket as claimed in claim 9, wherein the bracket is of telescopic design.

11. The bracket as claimed in claim 10, wherein the length of the bracket can be set by means of a screw connection of the bracket.

12. The bracket as claimed in claim 11, wherein the bracket has a second sleeve with a plurality of engagement through-apertures into which a bolt of the bracket can be inserted, wherein the bolt is guided in a rod or a tube of the bracket in order to set the length of the bracket in correspondence with the unit spacing of the engagement through-apertures.

13. A scaffolding comprising the bracket as claimed in claim 2 and including the first scaffolding pole which is vertical in the mounted state and which is connected to the clamp.

14. The scaffolding as claimed in claim 13, wherein the first scaffolding pole has the first scaffolding pole aperture into which the first projection of the bracket is inserted, wherein the first scaffolding pole has the second scaffolding pole aperture which is opposite to the first scaffolding pole aperture and into which the second projection of the bracket is inserted.

15. The scaffolding as claimed in claim 14, wherein the scaffolding has a second scaffolding pole which is vertical in the mounted state, wherein the second scaffolding pole is partially connected to the first scaffolding pole, wherein the second scaffolding pole has a third scaffolding pole aperture which is aligned with the first scaffolding pole aperture, and the second scaffolding pole has a fourth scaffolding pole aperture which is aligned with the second scaffolding pole aperture, and wherein the first projection engages through the third scaffolding pole aperture and the second projection engages through the fourth scaffolding pole aperture.