Trolley to reduce back pain during painting operations
The ergonomic paint trolley addresses the issue of back pain by allowing users to paint without bending, utilizing a lightweight, vertically designed structure and removable components for enhanced comfort and efficiency.
Patent Information
- Application Number
- FR2024003224
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-10-03
AI Technical Summary
Existing paint trolleys are not ergonomic, heavy, and require frequent bending, leading to back pain during painting operations on ceilings, walls, and facades.
A paint trolley with a structure comprising a base, wheels, and a handle extending vertically, along with a removable container and tray, designed to be used at a comfortable height, allowing users to move and paint without bending, featuring ergonomic design and lightweight materials.
Reduces back pain by enabling users to paint without bending, enhances ergonomics, and maintains paint freshness through a removable cover, while being cost-effective due to reduced manufacturing costs.
Smart Images

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Abstract
Description
Title of the invention: Trolley for reducing back pain during a painting operation
[0001] The present invention relates to paint trolleys allowing the user to reduce back pain.
[0002] In particular, for a ceiling of fifty square meters, following the cart or paint truck as the painting work progresses on the ceiling requires bending down twelve to fifteen times.
[0003] For a wall job for fifty square meters, you have to bend down ten to twelve times, whatever the site, and the same goes for facades.
[0004] With the trolley of the invention, these uncomfortable postures and movements for the back, repeated dozens of times, are thus avoided, which generates greater comfort for the operator when applying paint.
[0005] Paint trolleys are known which allow the paint tray to be followed close to the user, but they are not very ergonomic, in particular too low for the user, and heavy to move.
[0006] The invention aims to overcome at least some of the aforementioned drawbacks and to propose a trolley capable of combining the advantages of practicality, simplicity and reliability for its implementation, and this with great ergonomics.
[0007] In view of the foregoing, the subject of the invention is a paint trolley comprising a structure having tubes forming a base and further forming a support rising less than one meter from the ground when the paint trolley is placed on the ground on its base, the structure comprising at least one wheel and a handle extending vertically to a height of at least one meter twenty from the ground when the paint trolley is placed on the ground on its base, the paint trolley further comprising a removable container, the removable container and the structure being configured together so that the removable container can be placed on the structure and held horizontally relative to said structure when said removable container is placed on said structure and when the paint trolley is placed on the ground on its base.
[0008] Preferably, the base comprises two substantially parallel feet.
[0009] For example, the at least one wheel comprises two wheels facing the two feet.
[0010] Advantageously, the structure comprises two parallel inclined bars and the removable container comprises an inclined face complementary to said two parallel inclined bars.
[0011] According to one embodiment, the inclined face comprises textured parts in relief.
[0012] In one embodiment, the handle comprises a horizontal extension.
[0013] Advantageously, the horizontal extension is covered with a tubular grip knob.
[0014] The paint trolley may further comprise a removable tray having a shape complementary to the removable container and configured to be able to be removably fitted into said removable container to form a protective layer inside said removable container and contain paint, said removable tray further comprising tabs configured to allow the removable tray to be lifted relative to the removable container.
[0015] Preferably, the base includes non-slip ferrules.
[0016] The invention also relates to a paint trolley in which there is a removable cover having an upper handle, configured to be able to cover substantially horizontally the removable container and the removable tray when said removable tray is fitted into the removable container and when said removable container is inserted into the support of the paint trolley and when the paint trolley is placed on the ground on its base.
[0017] The invention will be better understood from a detailed study of an embodiment taken as a non-limiting example and illustrated by the appended drawings, in which:
[0018] [Fig-1] shows the paint trolley in exploded view.
[0019] [Fig.2] shows the paint trolley in front view.
[0020] [Fig.3] shows the interior of the paint container in top view.
[0021] [Fig. 1] illustrates the paint trolley of the invention.
[0022] In view of the foregoing, the subject of the invention is a paint trolley 1 designed to improve the efficiency and ease of transporting paint, the trolley 1 comprising a structure 2 having tubes 7, 9, 10, 14, 15, 16 forming a base 7 and further forming a support rising less than one meter from the ground when the paint trolley 1 is placed on the ground on its base 7, the structure 2 comprising at least one wheel 12 and a handle 5 extending vertically to a height of at least one meter twenty from the ground when the paint trolley 1 is placed on the ground on its base 7, the paint trolley 1 further comprising a removable container 3,the removable container 3 and the structure 2 being configured together so that the removable container 3 can be placed on the structure 2 and held horizontally relative to said structure 2 when said removable container 3 is placed on said structure 2 and when the paint trolley 1 is placed on the ground on its base 7.,
[0023] The tubes 7,9,10,14,15,16 forming the structure 2 are hollow tubes made for example of aluminum to ensure that the frames formed by the structure are light and make the trolley 1 easy to transport, without weighing it down, while providing it with a high rigidity.
[0024] The tubes 7, 9, 10, 14, 15, 16 are for example welded and bent.
[0025] Among the tubes 7, 9, 10, 14, 15, 16, a tube 9 can serve as a rear reinforcement crosspiece between the two feet 7 while a front crosspiece 10 can allow
[0026] The wheels 12 are for example two threaded stem casters allowing the trolley 1 to be easily maneuvered.
[0027] The casters 12 are for example screwed by the threaded rods into rear feet 11 of the main frame formed by the structure 2.
[0028] Each of the wheels 12 may be composed of a tire and a threaded steel rod.
[0029] The structure 2 thus forms a cradle for the removable container 3 which forms, for example, a detachable container with a large capacity of around eight to ten liters.
[0030] It is for example created by injection molding to obtain the desired shape, the shape being such that it can be injection molded during larger scale manufacturing, and optionally such that two parallel feet 19 (visible in [Fig.3]) have been created by reforming the wall of the container 3 so that it stands upright when placed on the ground.
[0031] These two parallel feet 19 are for example hollow and join a bottom of the container 18 with a uniformly and continuously curved face 25 so as to facilitate rolling of a paint roller in this container 18.
[0032] A steel handle 17,24 can be added to facilitate its transport outside the structure 2.
[0033] The total volume of the interior of the container is eighteen liters, which means that it can easily hold up to ten liters of paint.
[0034] The trolley 1 thus formed is a specialized assembly for painting large surfaces consisting of the cradle with wheels, in particular with casters, and a container 3 forming a truck making it possible to contain and transport the paint easily thanks to the wheels 12.
[0035] The container 3 is configured to stand upright outside the cradle, when it is placed on the ground, and in particular when it is filled with paint.
[0036] Preferably, the base 7 comprises two substantially parallel feet 7.
[0037] For example, the at least one wheel 12 comprises two wheels 12 facing the two feet 7.
[0038] Advantageously, the structure 2 comprises two parallel inclined bars 15, 16 and the removable container 3 comprises an inclined face 18 complementary to said two parallel inclined bars 15.
[0039] The container 3 thus has an inclined face 18 which has a specific inclination to facilitate the application of the paint with rollers and poles.
[0040] According to one embodiment, the inclined face 18 comprises textured portions in relief 21.
[0041] The textured raised parts 21 make it possible to remove excess paint very easily, by rolling the paint roller or other tool over these raised parts 21, and / or by pressing it against them.
[0042] The carriage 1 therefore offers increased ergonomics thanks to the relief 21 which makes it possible to eliminate any excess paint.
[0043] The structure 2 may comprise support tubes 9, 10, 14 between the feet 7 and supports 14, 15 between the wheels 12, and between the feet 7 and the wheels 12.
[0044] The supports 14 used to surround the edges of the container 3 are made with aluminum of diameter ten millimeters which are welded to the rest of a support forming a frame 15.
[0045] In one embodiment, the handle 5 comprises, for example, a vertical extension which ends in a horizontal extension 6, which makes it easier for the user to grip when he wants to move the trolley 1.
[0046] Advantageously, the horizontal extension 6 is covered with a tubular grip knob.
[0047] Said grip knob is for example an extruded foam tube surrounding the horizontal extension 6, which thus provides comfort and grip when maneuvering the trolley 1.
[0048] The paint trolley may further provide for having a removable tray 20 having a shape complementary to the removable container 3 and configured to be able to be removably fitted into said removable container 3 to form a protective layer inside said removable container 3 and contain paint 22, as illustrated in [Fig. 2], said removable tray 20 further comprising tabs 27 configured to allow the removable tray 20 to be lifted relative to the removable container 3.
[0049] The removable tray 20 may include a rim 23 in addition to tabs 27 to facilitate its lifting relative to the container 3 and to hold it along a vertical axis therein.
[0050] The rim 23 is for example complementary
[0051] The tabs 27 at each corner allow the tray 20 to be easily removed.
[0052] Only one tab, or several at several corners, allows the liner tray 20 to be lifted.
[0053] To cover the holes created by the feet 7 of the container 3, it can be slightly thicker than traditional liners.
[0054] The trolley 1 is thus also equipped with a support formed by the removable tray 20 for use on the ground.
[0055] The removable tray 20 is for example a protective liner vacuum-molded in transparent plastic.
[0056] It protects the container 3 and forms a spare and wear part which can be easily assembled.
[0057] It is thus possible to design disposable refills for tray 20 having the same shape as the container 3, which makes it possible not to damage this container to be painted, thus acting as a protective shell.
[0058] The removable tray 20 is intended to go inside the removable container 3 and to allow the dried paint to be easily removed.
[0059] Preferably, the base 7 comprises non-slip ferrules 8.
[0060] The anti-slip ferrules 8 are for example made of rubber, and serve as brakes for the casters 12 and prevent the carriage 1 from slipping when a paint roller is immersed and handled in the paint placed in the container 3 and / or in the tray 20.
[0061] The rubber ferrules 8 are like those used on crutches and serve as brakes for the casters 12.
[0062] The invention also relates to a paint trolley in which a removable cover 4 having an upper handle 13, configured to be able to cover substantially horizontally the removable container 3 and the removable tray 20 when said removable tray 20 is fitted into the removable container 3 and when said removable container 3 is inserted into the support of the paint trolley 1 and when the paint trolley 1 is placed on the ground on its base 7.
[0063] The removable cover 4 forms a protection ensuring the sealing and protection of the paint, which makes it possible to keep the paint fresh when it is not in use.
[0064] The cover 4 makes it possible in particular to protect the paint from drying out and contamination when it is in the container 3 and / or in the tray 20.
[0065] Thus, a trolley 1 is produced allowing the user to roll this trolley 1 alongside him when he moves to paint, without having to bend down to re-dip the roller, the handle 5 being at the right height for direct gripping in a standing position.
[0066] In addition, the trolley is an assembly of several sourced elements, so the manufacturing cost is reduced to the cost of the components, welding and assembly, avoiding any tooling costs.
Claims
Claims
1. Paint trolley (1) comprising a structure (2) having tubes (7,9,10,14,15,16) forming a base (7) and further forming a support rising less than one meter from the ground when the paint trolley (1) is placed on the ground on its base (7), the structure (2) comprising at least one wheel (12) and a handle (5) extending vertically to a height of at least one meter twenty from the ground when the paint trolley (1) is placed on the ground on its base (7), the paint trolley (1) further comprising a removable container (3), the removable container (3) and the structure (2) being configured together so that the removable container (3) can be placed on the structure (2) and held horizontally relative to said structure (2) when said removable container (3) is placed on said structure (2) and when the paint trolley (1) is placed on the ground on its base (7).
2. Paint trolley (1) according to claim 1, in which the base (7) comprises two substantially parallel feet (7).
3. Paint trolley (1) according to claim 2, wherein the at least one wheel (12) comprises two wheels (12) facing the two feet (7).
4. Paint trolley (1) according to any one of claims 1 to 3, wherein the structure (2) comprises two parallel inclined bars (15,16) and the removable container (3) comprises an inclined face (18) complementary to said two parallel inclined bars (15,16).
5. Paint trolley (1) according to claim 4 wherein the inclined face (18) comprises raised textured portions (21).
6. A paint trolley (1) according to any one of claims 1 to 5, wherein the handle (5) comprises a horizontal extension (6).
7. A paint trolley (1) according to claim 6, wherein the horizontal extension (6) is covered with a tubular grip knob.
8. A paint trolley (1) according to claim 7, further comprising a removable tray (20) having a shape complementary to the removable container (3) and configured to be removably nestable in said removable container (3) to form a protective layer inside said removable container (3) and contain paint, said removable tray (20) further comprising tabs (27) configured to allow the removable tray (20) to be lifted relative to the removable container (3).
9. A paint trolley (1) according to any one of claims 1 to 8, in which the base (7) has non-slip ferrules (8).
10. Paint trolley (1) according to any one of claims 1 to 9, further comprising a removable cover (4) having an upper handle (13), configured to be able to cover substantially horizontally the removable container (3) and the removable tray (20) when said removable tray (20) is fitted into the removable container (3) and when said removable container (3) is inserted into the support of the paint trolley (1) and when the paint trolley (1) is placed on the ground on its base (7).
Citation Information
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