FR3063755A1 - SUPPORT DEVICE FOR SURFACING TOOL FOR USE FROM A PLATFORM HAVING TWO PARALLEL GUARDS - Google Patents

Abstract

The device comprises a framework consisting of two frames articulated in cross (1) and (2), to automatically change their spacing according to that of the railings, each frame (1) and (2) has support arrangements and guide (3) - (4) adapted to cooperate, particularly with displacement capacity, with said guardrails, said frames (1) and (2) being subject to means (5) - (7) able to allow the removably fastening the surfacing tool.

Description

063 755

51826 ® FRENCH REPUBLIC

NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY © Publication number:

(to be used only for reproduction orders) (© National registration number

COURBEVOIE © IntCI ⁸ : E 04 G 5/00 (2017.01)

PATENT INVENTION APPLICATION

A1

©) Date of filing: 07.03.17. © Applicant (s): M.B.H. DEVELOPMENT Company (30) Priority: by simplified shares - FR. @ Inventor (s): BOTTAZZI MARC. ©) Date of public availability of the request: 14.09.18 Bulletin 18/37. (© List of documents cited in the report of preliminary research: Refer to end of present booklet (© References to other national documents @ Holder (s): M.B.H. DEVELOPMENT Company by related: simplified actions. ©) Extension request (s): © Agent (s): LAURENT AND CHARRAS CABINET.

SUPPORT DEVICE FOR SURFACING TOOL FOR USE FROM A PLATFORM HAVING TWO PARALLEL GUARDRAILS.

FR 3 063 755 - A1 (5 /) The device comprises a framework constituted by two cross-hinged frames (1) and (2), for automatically changing their spacing according to that of the railings, each frame (1) and (2) has support and guide arrangements (3) - (4) capable of cooperating, in particular with displacement capacity, with said railings, said frames (1) and (2) being subject to means (5) - (7) able to allow the fixing, in a removable manner, of the surfacing tool.

i

The invention relates to the technical building sector, in particular to tools for performing surfacing, sanding, grinding and other operations, of walls of walls, or ceilings in particular, for all types of buildings.

More particularly, the invention relates to a support device for a surfacing tool.

A hand surfacing tool, or other equivalent operation, is perfectly known to a person skilled in the art, and can have different embodiments, which tool is generally subject to a source of electrical energy, autonomous or not.

Such a tool can be equipped with a telescopic handle, or not, for carrying out work at height, at the wall level for example, or at the level of a ceiling.

More particularly, when it is necessary to carry out a ceiling surfacing operation, the operator most often uses a gondola, in order to be raised above the ground, and on which he can move. Generally, the nacelle is equipped with rolling members and bodyguards to ensure the protection of the operator, as he moves, and of the operation of the surfacing tool.

It is understood that such a surfacing operation is particularly painful for the operator, having regard to the raised position of his arms, in order to bring the surfacing tool into contact with the ceiling.

Furthermore, the operator is obliged to hold the surfacing tool generally by means of two hands, so that it is difficult, if not impossible, to use the railings of the platform or nacelle, with consequently , risks of loss of balance.

The purpose of the invention is to remedy these drawbacks in a simple, safe, efficient and rational manner.

The problem which the invention proposes to solve is to facilitate the work of an operator who operates on a nacelle, or platform, with a view in particular to performing surfacing operations on a ceiling of all types of buildings, with the objective of ensuring operator safety.

To solve such a problem, according to a characteristic underlying the invention, the support device for surfacing tool intended to be used from a platform having two parallel railings, comprises a framework constituted by two frames articulated in a cross, to modify their spacing, each frame has support and guide arrangements able to cooperate, in particular with displacement capacity, with said railings, said frames being subject to means capable of allowing the fixing of a removable way of the surfacing tool.

It follows from these characteristics, that as the operator moves on the platform, the latter can move the frame receiving the surfacing tool along the railings, one hand of the operator being sufficient to maneuver the surfacing tool carried by the frame. Given the design of the frame by means of two cross-hinged frames, the latter automatically adapts to the width of the guardrails, without requiring any tools.

To solve the problem posed of allowing the displacement of the framework with respect to the railings, as the work progresses, the support and guide arrangements are constituted by shoes receiving guide shoes or means of bearings, cooperating bearing on the railings, said shoes being made integral with the base of each of the frames.

In one embodiment, each frame is constituted by a tubular profile delimiting a "U", the branches of which are coupled at their free end, to the shoes receiving the guide pads or rolling means.

The free end of the branches is bent towards the inside of the frame.

The frames are coupled at their closed end to a spacer plate.

To solve the problem posed of being able to automatically adapt the framework to different spacings likely to exist between the railings of the platform, or nacelle, the coupling of the closed end of the frames, to the spacer plate, is carried out in an adjustable manner in spacing, by means of collars cooperating with translational displacement capacity, with a groove which said plate has longitudinally.

According to another characteristic, the means, capable of allowing the tool to be fixed in a removable manner, consist of a mast secured to the plate.

To solve the problem of easily moving the frame relative to the railings, the latter has a gripping means for its movement along the railings.

The gripping means is a transverse handle constituted by a tubular element coupled to the branches of at least one of the frames.

The invention is set out below in more detail with the aid of FIGS. 5 of the appended drawings in which:

- Figure 1 is a perspective view of the device according to the features of the invention,

- Figure 2 is a perspective view showing the use of the support device, for the coupling of a surfacing tool working at a ceiling.

As indicated, the support device according to the invention finds a particularly advantageous application for all types of surfacing tools (O), or others, intended to be used from a platform, or nacelle (N), with two longitudinal and parallel railings, (Gl) and G2). The surfacing tool (O) and the nacelle (N), equipped with the railings (Gl) and (G2), are not described in detail, since they are capable of having different embodiments, and that they are not part of the specific object of the invention.

The aim is therefore to allow an operator who has to handle the surfacing tool (O), to be able to work, in complete safety, on the nacelle, the surfacing tool being coupled to the shaped support device to cooperate in support, with the railings of the nacelle.

The support device, according to the invention, comprises a framework constituted by two cross-hinged frames (1) and (2), automatically allowing their spacing at the level of their coupling with the railings (Gl) and (G2), as it will be indicated in the following description.

The frames (1) and (2) are constituted by a tubular profile delimiting a "U", with consequently, two parallel branches (la) (lb) and (2a) - (2b) joined by a common transverse branch (the ) and (2c).

The free end of each of the branches (la) - (lb) and (2a) - (2b) is bent towards the bottom inside the framework, at an angle of about 120 °, without this exclude other angular values.

The frames (1) and (2) are articulated substantially in their middle part, at the branches (la) - (lb) and (2a) - (2b), this articulation being produced by any known and appropriate means.

According to another characteristic, each of the frames (1) and (2) have support and guide arrangements capable of cooperating, in particular with displacement capacity, with the railings (Gl) and (G2), and more particularly with the upper crosspieces of said railings.

For this purpose, the free ends of each of the branches (la) - (lb) and (2a) - (2b), at their curved ends, are coupled to shoes (3) receiving guide shoes, or rolling means (4) cooperating in support with the upper crosspieces of each of the railings (Gl) and (G2). Advantageously, each shoe is equipped with two casters, so that the very light weight of the device is distributed over eight casters, so as to comply with the standard EN 350 141 22-3 corresponding to bodyguards and guardrails.

According to another characteristic, the frames (1) and (2) are subject to means, capable of allowing the fixing, in a removable manner, of the surfacing tool (O).

For this purpose, the frames (1) and (2) are coupled at their closed end, that is to say at the level of the transverse branch (le) and (2c), to a spacer plate (5). .

This coupling is carried out in an adjustable manner, in spacing. For example, each transverse branch (le) and (2c) cooperates with a collar (6), engaged with the ability to move in translation in a branch, which the plate (5) has longitudinally.

Each collar (6) can be equipped with a means of locking in translation.

The plate (1) receives, in particular in its middle part, a mast (7) at the end of which is coupled a part of the surfacing tool (O).

Note that the coupling of the surfacing tool relative to the mast is effected by any known and appropriate means, and in particular, with the capacity of rotation of the surfacing tool relative to the mast, so that the operator can angularly move the surfacing tool, relative to the surface to be treated, such as a ceiling.

Advantageously, the frame has a gripping means for its possible displacement relative to the railings, while constituting a support for the operator.

For example, this gripping means can be a transverse handle (8), constituted by a tubular element coupled to the branches, of at least one of the frames (1) and (2).

Reference is made to FIG. 2 of the drawings, which shows the use of the support device, according to the invention.

The frame is arranged to rest on the railings, at the level of the shoes (3), fitted with sliding pads or rolling means (4), and automatically adapts to the width of the railings.

The surfacing tool (O) is coupled to the mast (7) of the frame. The operator, who is on the platform, can therefore, with one hand handle the surfacing tool, and with the other hand, maintain the framework at the level of the handle (8).

If necessary, the operator can therefore move on the nacelle, and push, as it moves, the frame equipped with the surfacing tool.

The advantages emerge clearly from the description, in particular, it is emphasized and recalled the ease of work for carrying out a planing operation of a ceiling, the safety of the operator operating on a nacelle, and the self-adaptability of the frame. at the spacing of the railings.

Claims (2)

-1- Support device for surfacing tool intended to be used from a platform having two parallel railings, characterized in that it comprises a framework constituted by two frames articulated in cross (1) and ( 2), to automatically modify their spacing as a function of that of the railings, each frame (1) and (2) has support and guide arrangements (3) - (4) capable of cooperating, in particular with the ability to 10 movement, with said railings, said frames (1) and (2) being subject to means (5) - (7) capable of allowing the fixing, in a removable manner, of the surfacing tool. -2- Device according to claim 1, characterized in that the 15 support and guiding arrangements consist of shoes (3) receiving guide shoes or rolling means (4) cooperating bearing on the railings, said shoes (3) being made integral with the base of each of the frames (1) and (2). 20 -3- Device according to claim 1, characterized in that each frame (1) and (2) is constituted by a tubular profile defining a "U", whose branches (la) - (lb) and (2a) - (2b) are coupled at their free end to the shoes (3) receiving the guide pads or rolling means. 25 -4- Device according to claim 3, characterized in that the free end of the branches (la) - (lb) and (2a) - (2b) is curved in the direction of the interior of the frame. -5- Device according to claim 3, characterized in that the frames are coupled at their closed end, to a spacer plate (5). -6- Device according to claim 5, characterized in that the coupling of the closed end of the frames (1) and (2), to the spacer plate (5), is effected in an adjustable manner in spacing, by means of collars (6) cooperating with translational displacement capacity, with a groove which said plate (5) has longitudinally. -7- Device according to any one of claims 1 and 5, characterized in that the means, adapted to allow the fixing in a removable manner of the tool, consist of a mast (7) integral with the plate ( 5). -8- Device according to claim 1, characterized in that the frame has a gripping means for its movement along the railings. -9- Device according to claim 8, characterized in that the gripping means is a transverse handle (8) constituted by a tubular element coupled to the branches of at least one of the frames. 1/2