Electric trestle system

Abstract

Title: Electric Trestle System The invention relates to a trestle system, comprising at least two trestles (1), each trestle (1) comprising: - two lifting columns (2) incorporating a sleeve (21), a jack (22) mounted for translational movement within the sleeve (21), and an electric motor configured to move the jack (22) within the sleeve (21); - a frame (3) supporting the two sleeves (21) and forming a base for the trestle (1); - a support (4) carried by the jacks (22) of the two lifting columns (2), at one upper end of the jacks (22). Figure for the abstract: Fig. 1

Description

Title of the invention: Electric trestle system technical field

[0001] The field of the invention is that of the design and manufacture of workshop equipment.

[0002] The invention relates more particularly to a trestle system. State of the art

[0003] A trestle is a support which classically takes the form of a bar supported by two triangular legs.

[0004] Trestles are particularly useful in workshops to facilitate raising products to the correct height for operations to be carried out.

[0005] Different types of trestles exist, however, various problems have been identified, notably relating to the plurality of trestles needed in a workshop, musculoskeletal disorders, or, in a non-exhaustive manner, the ergonomics of the trestles. Technical problem

[0006] The invention aims in particular to overcome these drawbacks of the prior art.

[0007] More specifically, the invention aims to provide a trestle system that improves the working conditions of the people using them. Summary of the invention

[0008] This objective, as well as others that will appear subsequently, are achieved thanks to the invention which relates to a trestle system, characterized in that it comprises at least two trestles, each trestle comprising: - two lifting columns incorporating a sleeve, a cylinder mounted mobilizably in translation within the sleeve, and an electric motor configured to move the cylinder within the sleeve; - a frame supporting the two sheaths and forming a base for the trestle; - a support carried by the cylinders of the two lifting columns, at an upper end of the cylinders; and in that it also includes an electronic control unit for the lifting column motors, the electronic unit being coupled to each of the motors, and being configured to: - synchronize the movement of the cylinders in the sleeves; - stop the lifting column motors in case of desynchronization of at least one of the motors.

[0009] The system according to the invention is particularly advantageous in that it allows users to easily adjust the height of the trestle supports, thus offering significant versatility and the possibility of reducing musculoskeletal disorders. The synchronization of the lifting columns ensures that the supports remain in the same horizontal plane relative to each other, which is essential for the intended use of the trestles, while also providing safe operation in the event of a motor malfunction.

[0010] According to a preferred embodiment, the at least two trestles comprise a master trestle and at least one slave trestle, the master trestle carrying the electronic unit, the slave trestle or trestles being connected to the master trestle.

[0011] According to an advantageous design, the system includes an electronic unit control interface carried by the master trestle or coupled to the master trestle by wired or wireless connection.

[0012] Preferably the trestle system includes a motor power supply system integrating at least one electric battery carried by one of the trestles. Brief description of the drawings

[0013] Other features and advantages of the invention will become more apparent upon reading the following description of various preferred embodiments of the invention, given by way of illustrative and non-limiting examples, and the accompanying drawings, among which: • [Fig.1] [Fig.1] is a schematic representation of the trestle system according to the invention, with a master trestle and a slave trestle; • [Fig.2] [Fig.2] is a schematic representation of a trestle according to a another method of implementation. Detailed description

[0014] As can be seen in [Fig.1], the trestle system according to the invention is represented.

[0015] This system includes at least two trestles 1. The system may include only two trestles 1 as illustrated, but it may also include others, and be extended to four, five or six trestles, by way of non-limiting examples.

[0016] In general, each trestle 1 comprises: - two lifting columns 2; - a frame 3 and forming a base for trestle 1; - a support 4.

[0017] Each lifting column 2 incorporates a sleeve 21, a cylinder 22 mounted movably in translation within the sleeve 21, and an electric motor configured to move the cylinder 22 within the sleeve 21. The lifting columns 2 can have a minimum height of 800mm and a maximum height of 1300mm.

[0018] The frame 3 carries the two sleeves 21. More precisely, the frame 3 comprises two triangular parts 31 joined together by means of at least one cross member 32. These two triangular parts 31 flare out from an upper end towards the ground to a lower end.

[0019] Each triangular part 31 forms a cradle receiving the lower end of a sheath 21.

[0020] On either side of the cradle, the triangular parts 31 have reservations accommodating means of connection 33 to the ground of the structure 3.

[0021] According to the embodiment illustrated in [Fig. 1], the means for connecting 33 to the ground take the form of swivel casters incorporating a locking pad. In this case, the trestles 1 can be easily moved and secured for storage or use.

[0022] According to the embodiment illustrated by [Fig.2], the means for connecting 33 to the ground take the form of ground fixing plates.

[0023] The support 4 is carried by the cylinders 22 of the two lifting columns 2, at an upper end of the cylinders 22.

[0024] This support 4 can take different forms.

[0025] With reference to [Fig. 1], the support 4 of each trestle 1 comprises a shelf 4L

[0026] With reference to [Fig. 2], the support 4 of the trestle 1 also includes a beam 42 mounted on the shelf 41, with two extendable arms 43 mounted movable in translation on the beam 42 in order to allow a variation of the length of the support 4.

[0027] As can be seen in [Fig.1], the system also includes an electronic control unit 5 for the motors of the lifting columns 2.

[0028] The electronic unit 5 takes the form of a housing incorporating a processing unit. The housing is secured under the shelf 41 of the support 4 of the trestle 1.

[0029] This electronic unit 5 is coupled to each of the motors. In other words, the electronic unit 5 can send and receive information to each of the lifting columns 2, including, for example, operating instructions and feedback.

[0030] The electronic unit 5 is configured to synchronize the movement of the cylinders 22 in the sleeves 21. This synchronization of movements takes the form of synchronizing the speed of movement of the cylinders 22 and the position of the cylinders 22 relative to their sleeves 21. This ensures that the supports 4 always form a single working plane parallel to the ground on which the trestles 1 rest.

[0031] The electronic unit 5 is also configured to stop the motors of the lifting columns 2 in the event of a desynchronization of at least one of the motors. This prevents damage to an element of the trestles 1 or to an element supported by the trestles 1.

[0032] With reference to [Fig.1], the at least two trestles 1 comprise a master trestle 11 and at least one slave trestle 12. In this case, the system represented comprises a master trestle 11 and a single slave trestle 12.

[0033] The master trestle 11 carries the electronic unit 5, and the slave trestle 12 is connected to the master trestle 11. This connection is made by means of a control and power cable 7. It is possible to add other slave trestles 12 for example by means of a new control and power cable 7 which would couple the slave trestles 12 according to a parallel connection.

[0034] According to the present embodiment, the system further comprises a control interface 6 of the electronic unit 5 carried by the master trestle 11. More specifically, the control interface 6 is fixed under the shelf 41 of the support 4 of the master trestle 11, near an edge of the shelf 4L. This control interface 6 has, for example, switches for raising or lowering the supports 4, but also switches for bringing the supports 4 to pre-recorded heights.

[0035] According to conceivable embodiments, the control interface 6 can be coupled to the master trestle 11 by wired or wireless connection, thus forming a remote control allowing the height of the supports to be changed while at a distance from the trestles 1.

[0036] Finally, the trestle system includes a power supply system for the motors. This power supply system may include a connection for connection to an electrical network.

[0037] The power supply system advantageously integrates an electric battery carried by one of the trestles 1. This combined with the means of connection to the ground formed by casters gives the trestle system a particularly advantageous ease and autonomy of use.

Claims

Demands

1. A trestle system, characterized in that it comprises at least two trestles (1), each trestle (1) comprising: - two lifting columns (2) incorporating a sleeve (21), a jack (22) mounted movably in translation within the sleeve (21), and an electric motor configured to move the jack (22) within the sleeve (21); - a frame (3) supporting the two sleeves (21) and forming a base for the trestle (1); - a support (4) carried by the jacks (22) of the two lifting columns (2), at an upper end of the jacks (22); and in that it also comprises an electronic unit (5) for controlling the motors of the lifting columns (2), the electronic unit (5) being coupled to each of the motors, and being configured to: - synchronize a movement of the jacks (22) within the sleeves (21); - stop the motors of the lifting columns (2) in case of desynchronization of at least one of the motors.

2. System according to the preceding claim, characterized in that the at least two trestles (1) comprise a master trestle (11) and at least one slave trestle (12), the master trestle (11) carrying the electronic unit (5), the slave trestle(s) (12) being connected to the master trestle (11).

3. System according to any one of the preceding claims, characterized in that it comprises a control interface (6) of the electronic unit (5) carried by the master trestle (11) or coupled to the master trestle by wired or wireless connection.

4. System according to any one of the preceding claims, characterized in that it comprises a motor power supply system integrating at least one electric battery carried by one of the trestles (1).