Paint protection for door components, especially door locks

A door lock protection device with a cover and support system using magnets or adhesives shields the latch bolt and deadbolt from paint, addressing the issue of unwanted paint application and reducing damage during painting.

FR3166079A1Pending Publication Date: 2026-03-13PERSON JOHANN
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Patent Information

Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-09-06
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing solutions for protecting door locks during painting are unsuitable, leading to unwanted paint application that can obstruct mechanisms, wear them out prematurely, block gaps, prevent key use, and change the color of the faceplate.

Method used

A standard door lock protection device comprising a cover and support, with removable fixing means like magnets or adhesives, to shield the latch bolt and/or deadbolt from paint spray, featuring a cover placed externally and a support that holds it in position, with optional overmolded rubber or silicone for protection and a handle for easy gripping.

Benefits of technology

The device effectively prevents paint from reaching the lock components, reducing damage, simplifying the painting process, and minimizing the need for post-painting cleanup or replacement.

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Abstract

A paint protection device (1) for a standard lock (18) of a door (6) in which a latch bolt (9) and / or deadbolt (8) is surrounded by a faceplate (7), said device (1) comprising a cover (2) and a support (3), said cover (2) being intended to be placed on an outer side of the latch bolt (9) and / or deadbolt (8), and said support (3) being configured to hold said cover (2) and intended to be placed against said latch bolt (9) and / or deadbolt (8) so that the cover (2) protects the faceplate (7), said latch bolt (9) and / or deadbolt (8) from any paint spray directed towards the door (6), said device (1) further comprising removable fixing means (13, 15) for the support (3) on the faceplate (7). Figure for the abbreviation: Fig 1
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Description

Title of the invention: Paint protection for door components, in particular for door locks

[0001] The present invention relates to paint protection devices enabling the user to protect the outer surface of a part of an object from paint when he wants to paint that object, in particular by spraying.

[0002] The present invention aims to provide an anti-paint protection device that allows at least partial protection of a door lock.

[0003] Systems for protecting a portion of an object from paint are known, which provide protection during a painting process. For example, documents US20020004103 and US5198031 show masking devices that allow the hinges of a door to be masked before painting it, since the hinges do not need to be painted.

[0004] Similarly, document US20160076287 presents a custom-made cover to protect door hinges from paint.

[0005] Document US20160076287 presents a mask that can also be inserted on a hinge in the same objective.

[0006] It is therefore known to overcome this problem of painting on an unwanted surface by means of a mask.

[0007] These solutions are nevertheless totally unsuitable for a door handle, which leaves the problem of unwanted painting of the door locks during a door painting operation, which can obstruct the mechanisms, wear them out prematurely, block the gaps, prevent the use of the key, in addition to changing the color of the faceplate.

[0008] The invention aims to overcome at least some of the aforementioned disadvantages and to offer a masking system capable of combining the advantages of speed, simplicity and reliability for its implementation, and this over a wide range of door lock varieties.

[0009] In light of the foregoing, the invention relates to a standard door lock protection device in which the latch bolt and / or deadbolt is surrounded by a faceplate, said device comprising a cover and a support, said cover being intended to be placed on an external side of the latch bolt and / or deadbolt, and said support being configured to hold said cover and intended to be placed against said latch bolt and / or deadbolt so that the cover protects said latch bolt and / or deadbolt from any directed paint spray towards the door, the device includes means for removable fixing of the support on the headboard.

[0010] Preferably, the removable fastening means comprise magnets which are placed on the support and are suitable for removable fastening.

[0011] For example, there are at least three magnets, two of said magnets being positioned on two opposite ends of the support and a third being positioned substantially in the center of said support and between said two other magnets.

[0012] Advantageously, the support and the hood are each formed of hollow shells.

[0013] According to one embodiment, the magnets are arranged in the hollow shell of the support and on chimneys forming transverse extensions with respect to the hood.

[0014] In one embodiment, the hood forms a handle for gripping the device.

[0015] Advantageously, the support is made of overmolded rubber or overmolded silicone and is suitable for forming a protective seal between the hood and the door lock when said device is placed on said door lock in the operating position.

[0016] The device may further provide that the cover and / or the support is made of cardboard, plastic or folded metal.

[0017] Preferably, the device includes an adhesive side on the cardboard, suitable for fixing said device against the face of the door lock.

[0018] The invention also relates to a device which includes openings adapted for the passage of the latch bolt and / or the deadbolt of the door lock.

[0019] The invention will be better understood upon a detailed study of two embodiments taken by way of non-limiting examples and illustrated by the accompanying drawings, in which:

[0020] [Fig. 1] represents a device according to a first embodiment of the invention, in perspective view, ready to be installed on a door.

[0021] [Fig.2] represents the device of the first embodiment, in rear view of above.

[0022] [Fig.3] represents the same device in rear view, with a variant of magnets.

[0023] [Fig.4] represents a second embodiment of the device, installed on a door.

[0024] [Fig.5] represents the device according to the second embodiment, in rear view.

[0025] [Fig.6] represents, by way of example, a standard lock designating the different components of a standard state-of-the-art lock.

[0026] Fig. 1 illustrates the device of the invention, which is a paint protection device for the protection of the latch bolt and / or deadbolt of a standard lock 18 of a door 6, of which said latch bolt and / or deadbolt is surrounded by a faceplate 7.

[0027] This is a door lock 18 6, equipped with a door handle 10, a latch bolt 9 and / or a deadbolt 8, a cylinder 11 capable of being filled with paint in an undesired manner, and a structural and decorative plate 17.

[0028] Such a lock 18 is illustrated by [Fig.6] given as a non-limiting example of a standard lock of the prior art.

[0029] Device 1 does not protect the barrel 11, nor the handle 10, nor the decorative plate 17, which are generally removed during painting.

[0030] In the first embodiment illustrated in Figures 1 to 3, said paint protection device 1 for a standard lock 18 of a door 6 of which said latch bolt 9 and / or said deadbolt 8 is surrounded by a faceplate 7, comprises a cover 2 and a support 3, said cover 2 being intended to be placed on an outside side of the latch bolt 9 and / or said deadbolt 8, and said support 3 being configured to hold said cover 2 and intended to be placed against said latch bolt 9 and / or said deadbolt 8 so that the cover 2 protects said latch bolt 9 and / or said deadbolt 8 from any spray of paint directed towards the door 6.

[0031] Alternatively, one can imagine a particularly simple concept which includes a single piece of injected plastic, integrating cover and support, reusable, with an overmolded rubber or silicone overmolding to protect the latch bolt 9 and / or the deadbolt 8 and the faceplate 7 from painting, scratches, and three magnets mounted at the front are used to fix the product on the faceplate 7 of the lock 18.

[0032] The magnets 13 are for example inserted through openings and / or chimneys 4 passing through the hood 2 and the support 3.

[0033] The hood and support parts can therefore be in one piece or in two separate pieces, molded and / or overmolded together or assembled to each other.

[0034] The device 1 is such that the support 3 includes removable fixing means 13,15 of the support 3 on the headrest 7.

[0035] A device 1 is thus produced which is a simple cover which is placed on the faceplate 7 of the lock 18 of the door 6 to protect it from the paint while the door 6 is being painted.

[0036] Most importantly, the paint that targets the door 6 does not reach the lock 18 when the door 6 is painted, which prevents the need to replace or clean the lock 18.

[0037] Preferably, the removable fastening means 13,15 comprise magnets 13 which are placed on the support 3 and are suitable for removable fastening.

[0038] The magnets 13 are standard parts enabling the device 1 to be magnetized onto the headboard 7.

[0039] The magnets 13 are for example glued into or onto the plastic.

[0040] For example, there are at least three magnets 13, two of said magnets 13 being positioned on two opposite ends of the support 3 and a third being positioned substantially in the center of said support 3 and between said two other magnets 13.

[0041] The magnets 13 are for example mounted at the rear, as illustrated by [Fig.3], to hold the device 1 firmly on the faceplate 7 of the lock 18 during the painting procedure.

[0042] In the case of [Fig.2], the magnets 13 are mounted at the front of the device 1.

[0043] Advantageously, the support 3 and the hood 2 are each formed of hollow shells.

[0044] These shapes allow the device 1 to slide onto one or more of the bolts (swing bolt 9 and / or deadbolt 8) of the lock 18 of the door 6 and to lock itself reliably in position throughout the painting procedure, even if the latter generates forces on the device 1.

[0045] The hollow shell avoids having to make a dedicated recess for the passages of the latch bolt 9 and / or the deadbolt 8 of the lock 18 of the door 6.

[0046] According to one embodiment, the magnets 13 are arranged in the hollow shell of the support 3 and on chimneys forming transverse extensions with respect to the hood 2.

[0047] Thus, the device 1 protects the faceplate 7, the latch bolt 9 and / or the deadbolt 8 of the lock 18 of the door 6 during painting and allows painting to be done more quickly and easily around the lock 18 of the door 6, reduces the risk that the lock 18 will have to be replaced due to damage caused by the paint, and reduces the need to clean the paint off the lock 18 after painting.

[0048] In a simplified, low-cost version, instead of magnets 13, a friction fit between the silicone part and the mortising and locking latch can be used to hold it securely in place.

[0049] The magnets 13 are, for example, placed on extensions 14 in the cover 2 to bring them closer to the door 6 and the faceplate 7 of the lock 18

[0050] This concept could also be designed without an overmolded part and without friction adjustment, and the user would simply have to hold it in place while painting.

[0051] In all embodiments, the cover 2 can form a handle 12 for gripping the device 1.

[0052] Thus, the handle 12 for holding the device 1 is integrated, which minimizes the manufacturing cost.

[0053] The gripping handle 12 includes, for example, inclinations provided for this purpose on the hood 2.

[0054] Advantageously, the support 3 is made of overmolded silicone and is suitable for forming a protective seal between the cover 2 and the door lock 18 6 when said device 1 is placed on the face 7 of said door lock 18 6 in the operating position.

[0055] Alternatively, the support 3 is an overmolded rubber seal.

[0056] The support 3 is thus configured to protect the faceplate 7 of the lock 18 from scratches.

[0057] The hood 2 is, for example, made of injection-molded ABS plastic, which gives it offers sufficient mechanical resistance.

[0058] In a second embodiment illustrated by Figures 4 and 5, the device 1 may further provide that the cover 2 and / or the support 3 is made of cardboard, plastic or folded metal.

[0059] This second embodiment is made from a folded cardboard, plastic or metal plate.

[0060] The device 1 is thus designed to be held in place during painting and discarded after a few uses.

[0061] Preferably, an adhesive side 16 on the cardboard, suitable for fixing said device 1 against the faceplate 7 of the door lock 18 6.

[0062] Thus, an adhesive option can be included to hold the device 1 in place very easily.

[0063] The invention also relates to a device 1 which has openings 15 adapted for the passage of the latch bolt 9 and / or the deadbolt 8 of the lock 18 of the door 6.

[0064] The two embodiments described highlight the three different design options, namely in plastic with magnets mounted at the front, with magnets mounted at the rear, and in cardboard, plastic or metal.

[0065] The plastic version of device 1 could be available in a range of colours.

[0066] There is also space for marking the logo or other on the top surface.

[0067] As a usage scenario, it is then sufficient to fix the device 1 in place on the lock 18, to align it with the faceplate 7 of the lock 18, in particular with the magnets 13 where applicable, which will hold the device 1 in place, or with the adhesive 16.

[0068] The user can then proceed to the step of painting the door 6, using a brush or a spray gun to paint the door 6 without fear of damaging the latch bolt 9 and / or the deadbolt 8 as well as the faceplate 7 of the lock 18 with the paint.

[0069] Finally, the user only has to remove and clean: the device 1 can be removed from the door 6 and cleaned to be ready for reuse.

[0070] This third embodiment in which the device 1 is made of cardboard, plastic or metal therefore includes a product made of cardboard, plastic or metal for single use or for a few uses.

[0071] The product would for example be sold as a flat kit and the user would fold the sides and place it on the faceplate 7 of the lock 18 to be protected or some of its parts, in particular the deadbolt 8, the latch bolt 9 and the faceplate 7.

[0072] The product could be held in place during painting or have an adhesive on the back.

[0073] This concept could be sold as a reusable version made of cardboard, plastic or metal.

Claims

Demands

1. A paint protection device (1) for a lock (18) of a door (6) having said latch bolt (9) and / or deadbolt (8) surrounded by a faceplate (7), said device (1) comprising a cover (2) and a support (3), said cover (2) being intended to be placed on an outside side of the latch bolt (9) and / or deadbolt (8), and said support (3) being configured to hold said cover (2) and intended to be placed against said latch bolt (9) and / or deadbolt (8) so that the cover (2) protects said latch bolt (9) and / or deadbolt (8) from any spray of paint directed towards the door (6), said device (1) being characterized in that the support (3) comprises removable fixing means (13,15) of the support (3) on the faceplate (7).

2. Device (1) according to claim 1, wherein the removable fastening means (13,15) comprise magnets (13) which are placed on the support (3) and are capable of removably fastening.

3. Device (1) according to claim 2, wherein there are at least three magnets (13), two of said magnets (13) being positioned on two opposite ends of the support (3) and a third being positioned substantially in the center of said support (3) and between said two other magnets (13).

4. Device (1) according to any one of claims 1 to 3, wherein the support (3) and the cover (2) are each formed of hollow shells.

5. Device (1) according to claims 3 and 4, wherein the magnets (13) are arranged in the hollow shell of the support (3) and on chimneys forming transverse extensions with respect to the hood (2).

6. Device (1) according to any one of claims 1 to 5, wherein the hood (2) forms a handle for grasping the device (1).

7. Device (1) according to any one of claims 1 to 6, wherein the support (3) is made of overmolded rubber or overmolded silicone and is suitable for forming a protective seal between the cover (2) and the lock (18) of the door (6) when said device (1) is placed on the faceplate (7) of said lock (18) of the door (6) in the operating position.

8. Device (1) according to any one of claims 1 to 7, wherein the cover (2) and / or the support (3) is made of cardboard, plastic or folded metal.

9. Device (1) according to claim 8, further comprising an adhesive face (16) on the cardboard, suitable for fixing said device (1) against the faceplate (7) of the lock (18) of the door (6).

10. Device (1) according to any one of claims 8 and 9, wherein said device (1) has openings (15) adapted for the passage of the latch bolt (9) and / or deadbolt (8) of the lock (18) of the door (6).

Citation Information

Patent Citations

  • System and method for masking door hinges during painting

    US20020004103A1

  • Door Hinge Cover

    US20160076287A1

  • interchangeable PROTECTIVE HOOD FOR THE LATCH OF DOOR LOCKS.

    DE1921893U

  • Side cover for door lock during door painting

    DE4444695A1

  • Mask for door hinges

    US5198031A