Door-stopping device with infinite holding positions

A door-stopping device, comprising:

• a linking arm (1);
• and
• a locking mechanism (2),
• a first of the linking arm and the locking mechanism being linked to a door leaf, and a second of the linking arm and the locking mechanism being linked to a frame,
• said linking arm (1) having a first face (11) configured to cooperate with said locking mechanism (2),
• said locking mechanism including a braking element (21) that is pressed against said first face (11) of the linking arm (1), said braking element (21) controlled by a blocking element (23) mounted movably on the locking mechanism (2), following a direction globally perpendicular to the linking arm (1),
• said blocking element (23) engaging into a first notch (212) provided on the braking element (21), and said blocking element (23) cooperating with a resilient return means (24) which acts directly or indirectly on said blocking element (23) to exert pressure via said blocking element (23) on the braking element (21), thus holding the door leaf relative to the frame in any open position between a closed position and a fully-open position,
• wherein:
• said first face (11) of the linking arm (1) has a surface roughness that provides friction grip between the braking element (21) and the first face (11) of the linking arm (1);
• said braking element (21) has a second face (211) which is configured to be pressed with a portion of said first face (11) of the linking arm (1);
• said braking element (21) is mounted movably in relation to the locking mechanism (2), said braking element movable in a direction parallel to the linking arm (1) and with a travel limited by elastic recall means (22) which cooperate with the locking mechanism (2) in order to bring said braking element (21) back to a position where said first notch (212) of the braking element (21) is facing the blocking element (23) as soon as said blocking element (23) no longer exerts pressure on said braking element (21), while the door-stopping device is in an unlocked mode;
• said blocking element (23) is configured to be removed from the first notch (212) provided on the braking element (21) in order to release said braking element (21);
• the resilient return means (24), linked either to the locking mechanism (2) or to the blocking element (23), acts directly or indirectly between said locking mechanism (2) and said blocking element (23), following a direction perpendicular to the linking arm (1);
• a mobile carriage (3) is slideable along the linking arm (1) on which the mobile carriage (3) is mounted and with limited travel in relation to the body of the locking mechanism (2), while providing resistance to the relative movement between said mobile carriage (3) and the linking arm (1);
• said mobile carriage (3) comprises a second notch (31) with a shape which is similar to the first notch (212) provided on the braking element (21), and said mobile carriage (3) further comprises two inclined ramps (32) located on opposite sides of said second notch (31) of the mobile carriage (3) and which are configured to hold the blocking element (23) when the door-stopping device is in the unlocked position, said second notch (31) of the mobile carriage (3) configured to receive an extremity (231) of the blocking element (23), and said second notch (31) of the mobile carriage (3) is configured to be positioned side by side with the first notch (212) of the braking element (21) in such a way that when the blocking element (23) is fully pressed in the first notch (212) in a locked position, then the second notch (31) of the mobile carriage (3) is juxtaposed and aligned with the first notch (212) of the braking element (21), as a result of a load exerted by the blocking element (23);
• and
• when a force greater than a predefined threshold is applied to the linking arm (1), the blocking element (23) is moved apart from the first notch (212) and the second notch (31), up to a point where the blocking element (23) is no longer in contact with the first notch (212) of the braking element (21), then said blocking element (23) is only held by the extremity (231) of said blocking element (23), which is leaning on the inclined ramps (32) of the mobile carriage (3), the linking arm (1) being no longer blocked in translation by the braking element (21) and the door-stopping device being then in an unlocked mode.