IL187149A - Control mechanism for locking of entrance doors - Google Patents

Description

187149/2 Control Mechanism for Locking of Entrance Doors no¾3 rbt tfrsrf? nw tz? TT»S» 187149/2 Description INTRODUCTION Standard door locks are frequently controlled by a handle, which enables the user to open or close the latch bolt, and by a key, which enables the user to lock and unlock the lock's deadbolt. The mechanism, subject of the present invention, offers a wide variety of options that cater to the different users' needs.

The present invention refers to a mechanism that is installed within the lock of a door and is designed to offer a variety of options, including the option of preventing the lock or the latch bolt from locking and enabling the lock to be locked so that it may not be opened, even by the key.

THE DRAWINGS The drawings attached to the present application are not intended to limit the scope of the invention and the possible ways of its application. The drawings are intended only to illustrate the invention and constitute only one of many possible ways of its application.

Drawing No. 1 depicts the main disc (2), which has a central hexagonal hole (3) that serves also as an axle and as the hole into which the door handle is inserted, a round hole (6), an oval hole (7), an oval recess (8), a large notch (9), and a small notch (91).

Drawing No. 2 depicts the mechanism (1) whereby the lock is unlocked and the two pins (4) (5) are in "out" position.

Drawing No. 3 depicts the mechanism (1) whereby the lock is unlocked, the upper pin (4) is in "in" position, and the lower pin (5) is in "out" position. 187149/2 Drawing No. 4 depicts the mechanism (1) whereby the lock is unlocked, the upper pin (4) is in "out" position, and the lower pin (5) is in "in" position.

Drawing No. 5 depicts the mechanism (1) whereby the lock is locked and both pins (4) (5) are in "out" position.

Drawing No. 6 depicts the mechanism (1) whereby the lock is locked and the upper pin (4) is in "out" position and the lower pin (5) is in "in" position.

Drawing No. 7 depicts the mechanism (1) whereby it is incorporated in the lock and includes the main plate (12) to which the activating pin (11) is attached in unlocked position, i.e., the main plate (12) is in "up" position and the bolts (13) are retracted into the body of the lock.

Drawing No. 8 depicts the mechanism (1) whereby it is incorporated into the lock and includes the main plate (12) with the activating pin (11) in "locked" position, i.e., the main plate (12) is in "down" position and the deadbolts (13) are extracted from the body of the lock.

Drawings Nos. 9 and 10 depict the lock including the main plate (12).

Note: When examining the drawings, the position of the deadbolts should be disregarded since some drawings depict the mechanism in "locked" position while the deadbolts appear to be in the body of the lock rather than in the jamb. 187149/2 THE INVENTION It is first emphasized that the lock into which the mechanism (1) is incorporated is not part of the present invention. The mechanism (1), subject of the present invention, is designed to be incorporated into a door lock with the following properties: (a) The door handle opens and closes the latch bolt (10). This is a standard property of almost all standard locks; (b) A key is used to lock and unlock the lock by causing horizontal movement (sliding) of the deadbolts (13). This too is a standard property of all standard locks; (c) The inner locking mechanism of the lock includes a main plate (12) whose up-down movement causes the deadbolts (13) to slide in and out of the jamb. In other words, when the key is turned in the lock, the main plate (12) descends and causes the deadbolts (13) to slide out (horizontally) from the body of the lock into the door jamb. This action locks the lock, whereas turning the key in the opposite direction unlocks the lock; (d) When the door is slammed, the main plate (12) descends, causing the lock to lock automatically, even without using the key. (e) The door handle can be in either "horizontal" or "in up" position. When the handle is in "horizontal" position, the latch bolt (10) is extracted from the lock and is inserted into the jamb, whereas when the handle is in "up" position, the latch bolt (10) is retracted back into the body of the lock.

The above properties of the lock are familiar to any expert in the field and so do not require any special elaboration or explanation other than the above and other than the following description of the lock that refers to Drawings Nos. 9 and 10. 187149/2 Drawings Nos. 9 and 10 depict the lock into which the mechanism (1), subject of the invention, is incorporated. The mechanism (1) itself is also shown in Drawings Nos. 9 and 10, but without numbers. Figures 9 and 10 aim to describe the essential parts of the lock by highlight of their outlines. It is hereby clarified that the said lock can function in the standard manner even without the mechanism (1). In other words, the latch bolt (10) may be retracted from the jamb and released back into the jamb using the door handle and the deadbolt may be locked and unlocked using the key. Drawings Nos. 9 and 10 depict the lock, which includes, among other things, the following components that are relevant to the explanation of the invention: a central hole (31) through which the door handle axle (not depicted in the drawings) is inserted, a latch bolt (10), which is controlled by the door handle, and the main plate (12). Turning the key causes the main plate (12) to descend and, as a result, the deadbolts (13) slide (horizontally) into the jamb. Drawing No. 9 depicts the lock in "locked" position, i.e. the main plate (12) has descended and the deadbolts (13) have slid out from the lock (and should be inserted into the jamb). Turning the key in the opposite direction causes the main plate (12) to ascend and unlock the lock. Drawing No. 10 depicts the lock in "unlocked" position, i.e. the main plate (12) has ascended and the deadbolts (13) have slid back into the body of the lock.

The aforementioned structure of the lock into which the mechanism (1) can be incorporated is generally known and understood by any average expert in the field and so the lock and its components do not required any elaboration and additional explanation other than the above and the drawings.

Now, after the properties of the lock into which the mechanism (1), subject of the present invention, can be incorporated, we explain the components of the mechanism itself, the way in which it is incorporated into the said lock, and its method of operation. 187149/2 The present invention refers to a mechanism (1) that is installed within the lock of a door, as described above. The mechanism offers a wider variety of options and locking possibilities, including: (a) preventing the use of the door handle to retract the latch bolt from the jamb into the lock, and thus preventing the door from being opened even when the lock is unlocked (the deadbolts are in the body of the lock); (b) preventing the lock from locking when the door is slammed, i.e., the mechanism (1) can neutralize the action of the automatic locking mechanism present in the lock.

The mechanism (1) comprises three main components: the main disc (2), two pins -an upper pin (4) and a lower pin (5), and activation pin (11). The main disc (2) is a flat, round plate that can be made of any rigid material such as metal or plastic. The main disc (2) has a central hexagonal hole (3) that acts as the point of rotation for the main disc (2). It also has a round hole (6) and an oval hole (7) as well as an oval recess (8) and a large notch (9) with a smaller notch (91) in it. The main disc (2) can be made of two identical and parallel discs that are joined so that the holes and recesses completely overlap, although the implementation of the invention does not require use of a double disc. Drawing 1 depicts the main disc (2) with its holes and notches.

Installation of the main disc (2) in the door lock: The main disc (2) is in fact mounted on the axle of the door handle, which is inserted through the central, hexagonal hole (3). When the handle is in up or released, the main disc (2) rotates around the door handle's axle, i.e. around its central hole (3). Drawings Nos. 2-8 depict the main disc (2) whereby it is installed in the lock, on the door handle's axle (31). 187149/2 The pins (4) (5) are inserted in the external cover of the lock and are positioned one above the other, and so one is referred to as the upper pin (4) and the other as the lower pin (5). The heads of the two pins (4) (5) protrude from the lock cover and are positioned above and below the door handle axle, respectively. The pins (4) (5) are inserted into the lock cover in such a way that they can be slightly extracted (pulled out) and retracted (pushed in). In other words, pressing on the head of each of the two pins (4) (5) inserts the pin deeper into the body of the lock (hereinafter referred to as "pin in retracted position"), and pulling the pin out returns it to its initial position (hereinafter referred to as "pin in extracted position"). The pins may be retracted and extracted either by pushing and pulling them or by turning or screwing them in or out. Drawings Nos. 2-8 depict the pins (4) (5) whereby they are inserted into the lock. When the pins are in extracted position they are not in contact with the main disc (2) and when they are in retracted position, they are inserted into the holes or notches on the main disc (2), according to the rotational position of the main disc (2) at the time the pins (4) (5) are inserted, as described in detail below.

The activating pin (11) is permanently inserted horizontally into to the main plate (12) at a point above the upper left-hand part of the main disc (2). When the main plate (12) is in "up" position (deadbolts are retracted back into the lock), the main disc (2) is positioned such that the large notch (9) faces up. Thus, when the main plate (12) descends, the activating pin (11) is inserted into the oval recess (8) causing the main disc (2) to rotate, and vice versa.

The relationship between the activating pin (11) and the main disc (2): The activating pin (11) causes the main disc (2) to rotate every time the main plate (12) ascends or descends. In other words, when the lock is locked (the deadbolts are inserted into the jamb), the main plate (12) descends and causes the activating pin (12) to partially rotate the main disc (2) counter clockwise around its main axle [i.e. around the central hole (3)]. When the lock is unlocked (the deadbolts are retracted 187149/2 back into the lock), the main plate (12) ascends and, as a result, the activating pin (11) partially rotates the main disc (2) clockwise.

Relationship between the pins (4) (5) and the main disc (2): When the pins (4) (5) are pushed into the body of the lock, they are inserted into the holes and notches (6) (7) recess (8) and notch (91) and, as a result, either prevent the main disc (2) from rotating altogether, or restrict its movement significantly. This in turn prevents the door handle from moving, which prevents the latch bolt from retracting back from the jamb into the body of the lock. In addition, when the main disc (2) is locked by the pins (4) (5) as described above, and cannot rotate, the movement of the main plate (12) is prevented as well. In other words, if the main plate (12) is in "down" position, it cannot ascend, and if it is in "up" position, it cannot descend. This happens because the activating pin (11), which is permanently inserted into the main plate (12), encounters the main disc (2) and since the pins (4) (5) prevent it from rotating, the main plate's movement is also prevented.

The mechanism (1) may be used in a variety of ways. In general, the user may either retract the two pins (4) (5), extract the two pins (4) (5), or retract one and extract the other.

Lock in "locked" or "unlocked" position and both pins extracted: Drawing No. 2 depicts the lock with the mechanism (1) installed in it whereby the lock is in "unlocked" position. This means that the deadbolts are in the lock rather than in the jamb. Drawing No. 5 depicts the lock with the mechanism (1) installed in it whereby the lock is in "locked" position. This means that the deadbolts are in the jamb. Both pins (4) (5) are in "extracted" position in Drawings Nos. 2 and 5. When the lock is either locked or unlocked and both pins are in "extracted" position, the mechanism does not in fact function and there is no change in the normal functioning of the lock, as if the mechanism was not present. 187149/2 Lock in "unlocked" position, upper pin "in", lower pin "out": Drawing No. 3 depicts the lock with the mechanism (1) whereby the lock is in "unlocked" position, the upper pin (4) is retracted and the lower pin (5) is extracted. When the lock is unlocked and the upper pin is pushed in, it is inserted into the small notch (91) on the main disc (2), preventing clockwise rotation of the main disc (2). In other words, the door handle cannot be raised back to horizontal position, since its axle is inserted through the central hole (3) of the main disc (2), which cannot rotate in the clockwise direction. Thus, the latch bolt (10) cannot be retracted into the body of the lock using the door handle, and so it remains in the jamb.

Lock in "unlocked" position, upper pin "out", lower pin "in": Drawing No. 4 depicts the lock with the mechanism (1) whereby the lock is in "unlocked" position, the upper pin (4) is extracted and the lower pin (5) is retracted. When the lock is unlocked and the lower pin (5) is pushed in, it is inserted into the oval hole (7) in the main disc (2), and specifically into the left-hand side of the oval hole (7). As a result, the main disc (2) cannot rotate counter clockwise and the main plate (12) in turn cannot descend and cause the deadbolts to slid out since the activating pin (11) is not engaged by the main disc (2) and cannot cause it to rotate. Thus, the lock cannot be locked, i.e. the deadbolts cannot be slid into the jamb. In this case, even if the lock has an automatic locking mechanism, it will not be activated. The main disc (2) can, however, rotate slightly clockwise until the lower pin (5) is inserted into the right-hand side of the oval hole (7) and then the door handle may be raised and the latch bolt (10) may be released (retracted back into the lock).

Lock in "unlocked" position, upper pin "in", lower pin "in": When the lock is unlocked and both pins (4) (5) are retracted, both situations described above occur: The latch bolt cannot be retracted back into the lock and it remains in the jamb, and the door cannot be locked using the deadbolts and so the automatic locking mechanism is inactivated.

Claims (1)

187149/2 Claims What is claimed:

1. A mechanism that controls the opening and locking of a lock and latch bolt that is designed to be incorporated into a lock with a main plate that moves up and down, sliding the deadbolts into the jamb and back into the body of the lock, that includes the following components: a main disc, an activating pin, an upper pin, and a lower pin; whereby the main disc is a flat, round plate with a central hexagonal hole that acts as an axle for the main disc, a round hole, an oval hole, an oval recess, and a large notch with a smaller notch in it; whereby the main disc is installed within the lock and is attached to the axle of the door handle, so that when the handle is in up or released, the main disc rotates around the door handle's axle; whereby the activating pin is permanently, horizontally inserted into the main plate above the upper left-hand part of the main disc so that when the main plate moves up or down, the activating pin causes the main disc to rotate; whereby the upper and lower pins protrude through the external cover of the lock and can be slightly extracted and retracted; whereby the upper pin is positioned above the lower pin; whereby the heads of the two pins protrude from the lock cover and are positioned above and below the door handle axle, respectively; whereby when the upper pin or lower pin is pushed into the lock, they are inserted into the round hole, the oval hole, the oval recess or the small notch, according to the positioning of the main disc; 187149/2 whereby when the lock is in "unlocked" position, and the main plate is in "up" position, and the upper pin is retracted, and the lower pin is extracted, then the upper pin is inserted into the small notch, preventing the latch bolt from being retracted back into the body of the lock; whereby when the lock is in "unlocked" position, and the main plate is in "up" position, and the upper pin is extracted, and the lower pin is retracted, then the lower pin is inserted into the oval hole, preventing the deadbolts from sliding into the jamb; whereby when the lock is in "locked" position, and the main plate is in "down" position, and the upper pin is extracted, and the lower pin is retracted, then the lower pin is inserted into the round hole, preventing the latch bolt from being retracted back from the jamb into the body of the lock.