Post device with remote fixing control.

Abstract

The invention relates to a post-mounted, remote-controlled locking device for temporary safety guardrails in buildings, comprising: a post (a) with two openings on two opposing uprights for receiving a clip (f) at the bottom of the post and a control (g) at the top of the post; inside the post are placed: - a bar (h) which receives the control (g) and the clip (f) at each of its ends, - a translation tube (i) inside the post (a'), - the bar (h) is positioned on the translation tube (i), a spring (j) allows the bar (h) to be translated inside the post (a'), a sleeve plate (k) which receives the bottom of the post, said plate (k) having an opening (l) for receiving the clip (f). Figure for the abstract [Fig. 1]

Description

Title of the invention: Post device with remote fixing control.

[0001] The invention relates to a remote locking device for a post on a sleeve base plate, using a spring-loaded clip with a remote control. This control is connected to the clip by a toggle mechanism, a bar or rod located inside the post, which acts on the clip by a translational movement. The device is intended for use on temporary guardrails in construction projects. The guardrail is attached to base plates equipped with oblong slots opposite the clips, thus locking the guardrail in the base plate and preventing any risk of detachment. The purpose of this invention is to limit musculoskeletal disorders (MSDs) resulting from the need to bend down to detach the guardrail from the base plate during dismantling (end of construction).

[0002] State of knowledge: This is limited to the field of fixing systems between male tubular posts (whether or not they are integrated into a guardrail) that are secured in a female plate, known as a sleeve plate. In this very specific technological field (there are many other technological principles for posts and connections to the building structure, but they differ from that of the invention), it is necessary to distinguish two families of fixing: - those which rely on screw systems, - others which use clip principles.

[0003] Note that the subject omits technologies of poles and sleeve plates not equipped with fixing systems.

[0004] With regard to screw-in technologies, it is appropriate to distinguish two sub-families depending on whether the screw enters the plate more or less perpendicularly by means of a screw thread attached to the plate (for example, fixing sleeves: reference "Potfour"® developed by the company "Seton"®, or "Fitclamp"®), or whether the plate acts as a collar and in this case tightening the collar secures the tube (post, pole) to the plate, the collar deforming more or less to fix the post, and taking the shape of the latter.

[0005] With regard to clip technologies, which relate more particularly to the subject matter of the present invention, several devices are known:

[0006] The first, which is the most commonly used in various fields of application (temporary guardrails for buildings, but also for securing parasols to a base plate, or for joining two tubes together—like the tubes of outdoor tents... non-exhaustive list), relates to a tube (called male) that receives a spring clip, the A male tube inserts into another tube (called the female tube) equipped with an oblong opening of the same shape as the clip. The principle of this technology is to force the male tube into the female tube. This initially pushes the spring-loaded clip inside the male tube (allowing the male tube to pass into the female tube). The clip then releases itself when it aligns with the oblong opening of the female tube, thus securing the two tubes together. The problem with this technology, when used to connect the base plate and the post, is that disassembly requires the operator to perform repeated downward movements to release the clip and detach the guardrail. This repetitive movement can lead to musculoskeletal disorders (MSDs). Manufacturers who use this technology, particularly for base plate-to-guardrail connection systems, include Combisalf®, Tammet®, and Novakorps®.

[0007] Another clip-on post fixing technology exists, more suited to permanent railings. It is represented by two patents filed by Mr. René Lauzier: - the first is a Canadian patent no. 967041 (application 156752 filed on November 15, 1972), - The second is French patent no. 1021973 filed on September 8, 1975,

[0008] . These two patents relate more specifically to railings whose uprights are assembled to the rails by clips. While this technology does not directly concern the fixing of a post to a base plate, the technology it reveals could be used in this context. According to the technological principle described, the posts have notches, and the base plates have raised sections the same shape and size as the notches. The assembly principle consists of forcing the posts into the base plates in such a way as to position the notches within the raised sections of the base plate. Note that according to this technology: - It is impossible to remove the post from its housing. - that the nature of the materials used allows them to withstand deformations, so that the notches fit into the extra thickness of the plate.

[0009] As a result of the state of knowledge, no known device for fixing the post to the plate by clip allows the post to be released from the plate without having to bend down.

[0010] Presentation of the invention: The invention relates to a post device with remote fixing control for temporary building safety guardrails, by means of a spring clip whose control is moved, this same control being connected to the clip by a bar placed inside the post which acts on the clip by a translational movement.

[0011] The invention is characterized by: 1) a post (a) which receives: - two openings placed on opposite sides: the first opening (b) being placed at the bottom of the first face of the post (c), while the second opening (d) is placed at the top of the post on the opposite face (e); these two openings being intended to receive a clip (f) at the bottom of the post, and a control (g) at the top of the post, - Inside the post (a'), are placed: = a bar (or rod) (h) which receives at each of its ends, on one side of its face, the control (g) and on the other side of its face, the whole being joined together, = a translation tube (i) inside the post (a') between the first (b) and second (d) opening, said translation tube (i) forming a pivot axis, = the bar (h) is positioned on the tube in translation (i), a spring (j) allowing the translation of the bar (h) inside the post (a'), as soon as the operator presses the control, 2) a sleeve plate (k) which receives the bottom of the post, this plate having an opening (1) to receive the clip (f).

[0012] According to this device, the installation of the post in the base plate is as follows: - the post is inserted into the plate (k), - As the clip (f) is brought into position on the plate (k), the operator presses the control (g), which pushes the clip (f) into the post, - upon encountering the opening (1) of the turntable (k), the clip is released and enters the opening (1).

[0013] In the event of the post(a) becoming detached from the plate (k), the operator is standing and presses the control (g) placed high on the post, which releases the clip (f) and allows the guardrail to be raised in a standing position.

[0014] In the case where the device is placed on a guardrail with two posts (the most common case), the operators, standing upright, simultaneously activate the two controls (g), which allows the guardrail to be released in a comfortable position. Brief description of the drawings

[0015] [Fig. 1] Detailed view of the post with all its components shown in tear-offs

[0016] [Fig.2] View of the post in the base plate

[0017] Glossary: a) post a') inside the post b) first opening c) bottom of the first face of the post d) second opening e) upper part of the post on the opposite face f) clip

[0018] g) control

[0019] h) bar also called rod

[0020] i) translation tube

[0021] j) spring

[0022] k) plate in sheath

[0023] 1) opening of the plate

Claims

[Claim 1] Demands A post-mounted device with remote fixing control for temporary safety guardrails in buildings, characterized in that it comprises a post (a) which receives: - two openings on two opposite uprights: a first opening (b) placed at the bottom of one face of the post, while a second opening (d) is placed at the top of the post on the opposite face (e); these two openings being intended to receive a clip (f) at the bottom of the post, and a control (g) at the top of the post, - Inside the post are placed: - a bar (h) which receives at each of its ends, on one side of its face the control (g) and on the other side of its face the clip (f), - a translation tube (i) inside the post (a') located between the first (b) and second (d) openings, - the bar (h) is positioned on the tube in translation (i), a spring (j) allowing the translation of the bar (h) inside the post (a'), The post device includes a sleeve plate (k) which receives the bottom of the post, said plate (k) has an opening (1) to receive the clip (f).

Images