Automatic locking door stop

A mechanical door stop device with a faceted rotor and latch mechanism allows easy locking and unlocking of doors in the open position, addressing the issue of door handle contact with walls, suitable for various door dimensions and handle shapes, and operable by all users.

FR3162451B1Active Publication Date: 2026-04-10BERNARD JEAN-FRANÇOIS
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Patent Information

Authority / Receiving Office
FR · FR
Patent Type
Patents
Current Assignee / Owner
BERNARD JEAN-FRANÇOIS
Filing Date
2024-05-23
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing door mechanisms do not allow for easy locking in the fully open position and prevent the door handle from contacting the wall, which can cause damage over time.

Method used

A mechanical door stop device with a faceted rotor, cam, and latch mechanism that locks the door in the open position using a simple pressure on the door or handle, and can be unlocked by further pressure, featuring a pivot button for manual operation and adjustable wall mounting for various door dimensions.

Benefits of technology

Enables easy locking and unlocking of doors by adults and children, including those in wheelchairs, without energy sources, and accommodates different door thicknesses and handle shapes, preventing door handle contact with the wall.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to "door stop" type devices that lock a door in its fully open position and also act as a stop preventing the door handle from contacting the wall. When the door is pushed towards the wall to open and lock it completely, the door actuates the pull handle 6, which then pulls the slide 4 supporting the blade 3, pushing the rotor 1 supporting a triangular cam 2, which actuates the follower 8, which drives the latch 9, which extends from its housing 10, trapping the door 7. The mechanism can be disengaged by rotating the stop 13 a quarter turn, thus preventing the pull handle 6 from moving, by positioning it behind the stop. This action locks the latch in the extended or retracted position. [Fig. 1]
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Description

Title of the invention: Self-locking door stop

[0001] The present invention is an essentially mechanical device which allows a door to be locked in its fully open position and also serves as a stop preventing the door handle from coming into contact with the wall.

[0002] The device, which is the subject of the present invention, is remarkable in that it allows the door to be locked by a simple pressure anywhere on it or on its handle.

[0003] One embodiment of the invention is described below by way of example.

[0004] Figure 1 is a view of the internal mechanism with the locking mechanism not engaged, and Figure 2 is its top view. Figure 3 shows the mechanism in the locked position. Figure 4 shows the device housing mounted on the wall mounting rail. Figure 5 is the top view of this mounting.

[0005] The device comprises, [Fig. 1] and [Fig. 2], a faceted rotor 1 supporting a cam triangular 2 and moved by the push blade 3 mounted on a slide 4 and supported by a bracket 5. The push blade is operated by a pull handle 6.

[0006] When the door 7 is pushed towards the wall to open it fully and lock it, it pushes the pull 6 which then activates the slide 4. The blade 3 pushes the rotor 1 which activates the follower 8 driving the latch 9 which comes out of its housing 10 trapping the door 7.

[0007] A further press on the door or its handle unlocks the device, [Fig.3]. The door pushes in the pull tab 6 which actuates the triangular cam 2 and allows the follower 8, located at the top of the cam and held against the stop by the spiral spring and its pivot 11, to return the latch 9, thus releasing the door 7.

[0008] A knee joint 12 with friction and spring-adjustable tension compensates for the removal of the device fixed to the wall, in which case one would pull hard on the door while the device is in the locking position.

[0009] The mechanism can be disengaged by rotating the stop 13 a quarter turn, which prevents the pull tab 6 from moving, by positioning it behind the stop. This action locks the latch in the extended or retracted position.

[0010] The wall fixing, [Fig.4] and [Fig.5], is achieved by a slide 14 pivoting on two axes 15 allowing the door to be aligned with the device housing and also allowing the distance between the door and the wall to be adjusted in relation to the dimensions of the handle of said door.

[0011] The locking and unlocking of the door can be carried out by adults as well as by children and by people in wheelchairs.

[0012] The device is suitable for all doors of standard thickness. Other dimensions are irrelevant. It is essentially mechanical and has no energy source. The shape of the door handle has no impact on the operation of the mechanism. The device has a disengageable pivot button 13 for manual operation.

Claims

Demands

1. Device for locking a door in its fully open position and also serves as a stop comprising a faceted rotor 1 supporting a triangular cam 2 and moved by a push blade 3 mounted on a slide 4 and supported by a bracket 5 and whose push blade is operated by a pull 6 pulling the slide 4 whose blade 3 pushes the rotor 1 which actuates the follower 8 driving the latch 9 which comes out of its housing 10 trapping the door 7.

2. Device according to claim 1 characterized in that the device can be disengaged by means of a pivot button 13 to be operated manually.

3. Device according to claim 1 characterized in that it comprises a wall fixing system having a pivoting slide 14.