BR-102024017864-A2 - Mechanical door lock

Abstract

It was developed with the purpose of providing a mechanical lock that eliminates the need for conventional keys, being opened or closed by activating a drag latch, and also features an opening device that prevents accidents.

Inventors

• Edson Bianchi

Assignees

• JOHREI INDUSTRIA E COMERCIO DE FERRAGENS LTDA

Dates

Publication Date

20260317

Application Date

20240830

Claims (1)

1. 1 - “MECHANICAL DOOR LOCK” comprising a lock (1) equipped with internal (2) and external (3) handles, characterized by the internal handle (2) in its smaller segment (4) on its rear face (5) being provided with a cylindrical rod (6) that has a longitudinal blind hole (7) and transverse locking channels (8) and in the upper section a spherical channel (F), wherein above the cylindrical segment (6) there is a blind hole (10) that receives a cylindrical drive shaft (11) equipped with a through hole with thread (12) and limiting channels (13) that receive a locking pin (14) provided with a spring (15), said through hole with thread (12) receives a screw (16) fixed in a drive stop (17) and housed in the recess (18) disposed in the smaller segment (4), the body of the screw (16) being accommodated in the blind channel (20) of the drive shaft (21), which is inserted in the hole (22) that extends upwards forming a spherical channel (23), the mirror (E) being followed by an elastic ring (24), a locking washer (25), a torsion spring (26) and a guide plate (27) having in its upper section (28) a spherical channel (23) that accommodates the cylindrical drive shaft (11), the locking washer (25) being internally equipped with locks (30) that are coupled to the transverse locking channels (8), while the external lock (31) receives the engagement of the torsion spring (26), the external handle (3) in its smaller segment (51) on its inner face (32) projects a rod (33) provided with locking channels (34) and a square hole (35) followed by a smaller circular hole (36) forming a limiting wall (37), the square hole being (35) receives drive shaft (21), whose rear end (B) has coupling channels (G), internally the drive shaft (21) accommodates a release shaft (38) equipped with a button (39), the external handle (3) on the inner face (32) receives a mirror (P) followed by an elastic ring (40) lock washer (41) torsion spring (42), said washer (41) having internal locks (43) that are coupled to the locking channels (34), while the external lock (44) receives the engagement of the torsion spring (42).

Description

[0001] This patent application refers to a “MECHANICAL DOOR LOCK”, which was developed with the purpose of providing a mechanical lock that eliminates the need for conventional keys, being opened or closed by means of a drag latch, in addition to having an opening device that prevents accidents. State of the art [0002] Manual door opening and closing mechanisms (door handles) are traditionally known in the state of the art, presenting a great diversity of forms and means of operation. However, currently known door handles generally have the drawback of the handle's torsion axis (lever) being integral to the base that fixes the handle to the door, since the central axis is positioned directly on the levers, so that the torsion movement produces the rotational displacement of the lever which, over time, forces the door to which it is fixed and causes unwanted play that, in many cases, even prevents the door from closing or, worse, opening. [0003] According to those skilled in the field, various models of balcony glazing systems are available on the market, especially the "European system," which consists of a set of "U"-shaped base profiles mounted on the edges of the installation opening and which integrate sliding tracks for pulleys, in turn, mounted at each end of the glass pane profiles for longitudinal sliding of the glass panes. [0004] The main feature of the European system consists of the possibility of fully opening the span by pivoting the glass panes, at which point the upper and lower pulleys on one side of the panel are aligned with the openings of the outlet boxes, allowing them to be released, while the internal pulleys of the same glass panes enable pivoting, a movement that is repeated until the span is fully open and the glass panes are gathered in one of the corners of the installation span. [0005] [005] To prevent the panes from moving due to wind action, they need to be locked. Various solutions are available on the market to enable this locking, such as: (i) a mechanism consisting of a main body mounted on one of the edges of the glass, either near the base, in the intermediate region, or at the top, which receives a key that, when rotated to lock, exposes a tongue that fits into a secondary body, juxtaposed to the main body but located on the adjacent glass pane, preventing both from opening; (ii) locking via a handle, usually mounted on the lower profile and equipped with a tongue that, by moving the handle, locks or unlocks the glass panes; (iii) a locking mechanism with synchronized tongues using a steel cable in vertical movement for locking and unlocking the panels; and (iv) “airplane” type closure which integrates a receptacle installed in the base profile that receives a locking pin, which in turn is mounted in the bed profile. [0006] Patent No. BR 10.2019.007270-9 presents a locking mechanism, especially for sliding glass windows or doors; the lock in question has external casings, a padlock support and rear base covers, divided into two units. The innovation of the lock lies in its internal mechanism conditioned in the unit and in the latch pattern belonging to the unit, which has a preferential hook-shaped arrangement and is directly connected to the second metal base, fitting perfectly into the lower channel of the lock. [0007] Patent No. BR 20.2015.027799-2 deals with a lock developed for application and use in tempered glass or masonry doors, i.e., glass-to-glass or glass-to-masonry, consisting of a ratchet system provided with an independent actuation system, serrated system, separate actuation buttons, eccentric external plates and presented in two constructive forms, glass-to-glass model and glass-to-masonry model, the first model being formed by a right set, a left set, a fixing counter-piece and actuation buttons, each set, right or left, being formed by main front pieces, larger and smaller plates or rear plates, noting that the fixing of either set is carried out with two screws. [0008] Patent BR 20 2017 023619 1 published on 04/06/2019 entitled construction process of a lock for glass doors and windows comprising internally a tongue assembly and externally a cylinder assembly with two keys and a secret already known in the state of the art, which by simply activating the key causes the mechanism called “NOSE” to rotate, which activates the tongue assembly causing it to pass through the slot of the component called the faceplate and locking the door in which the lock assembly is installed. [0009] Patent BR 20 2017 021992 0 consists of parts that, combined with each other, form an assembly that fits into the traditional rectangular cutout of a typical tempered glass door, including a roller latch and a tongue, both mounted together with an internal drive mechanism which, in turn, is interconnected with drive drums of said tongue. [0010] Patent BR 20 2016 020174 3, published on 03/20/2018, entitled "Applied arrangements in locks for sliding doors and windows," teaches