ES2351743A1 - Closure device for internal or controversial doors. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Closing device for internal doors or shutters. This device is provided with: a mechanism box, a ratchet in which a cavity for a knob or a control key, a knocker and a closing front separable from the box and provided with a through hole for a knocker is located. ; said cavity being aligned for the knob or the control key with the through hole; the mechanism allowing the knocker to protrude and then rotate to engage the respective latch firmly, allowing the mechanism to open the door only through the rotation of the knob or key, and thus preventing the lock from being forced from the outside . (Machine-translation by Google Translate, not legally binding)

Description

Closing device for internal doors or shutters

The present invention relates to a closing device for internal doors or shutters, applicable preferably, but not exclusively, on doors internal or concealed sliding shutters, equipped with a compact mechanism that allows a knocker to protrude and to then turn to hook firmly to the respective hooking, allowing said mechanism to open the door only through the rotation of the knob or the key, and thus preventing The lock is forced from the outside.

According to the current state of the art, the closing devices for concealed sliding doors on the market base their operation on the possibility of rotating a knocker from an opening position, aligned with that of the door, to a closing position in which the knocker is inserted into the respective hitch, mounted on the
framework.

These types of devices have aspects Unfunctional: the movement of the knocker, being rotary, makes that in the opening position the knocker is parallel to that of the door frame while when it is in the position of closure only partially enters the hitch, causing the Closure is ineffective.

This movement makes it difficult during the assembly, the alignment of the hitch with the knocker as it should allow the knocker to easily enter the hitch, so which should be left a suitable space up.

Another limiting feature of these devices has to do with its dimensions: the part that enter the door, called a box, contains in fact all mechanisms for actuating the knocker, in addition to possible mechanisms for key lock. In the box should be by both cavities present to introduce the knob and eventually, the key, after the box has been mounted at the door.

To be able, therefore, to enter a door of wood such a device, the assembler must perform a adequate cavity inside, removing the necessary volume of material: the larger the box, the greater the work necessary, with an inevitable weakening of the structure itself of the door.

In addition, closing devices of this type they can also be mounted on glass doors: a box of large dimensions, which is visible through the door, it turns out, therefore, aesthetically unpleasant.

In the closing devices in the state of the technique the front, which is used to fix the device to the door and that is visible form a whole with the rest of the device: before of assembly the user needs to choose the type of front, in addition, the assemblers need to have an adequate number of devices for each type of front.

The objective of the present invention is provide a closing device for internal doors or shutters, preferably applicable, but not in form exclusive, in internal doors or sliding shutters concealable, with compact dimensions, and make it simpler and Quick mounting on the door.

Another objective of the present invention is provide a locking device with a knocker that in opening position is completely inside the box and that in the closing movement advance horizontally first outward and then turn down to firmly hooked to the hitch.

Another objective of the present invention is provide a closure device in which the mechanism is constituted by a limited number of parts, making it simpler and economic its realization and its assembly.

Another objective of the present invention is provide a locking device with a separate front of the box and interchangeable, allowing the user to choose the type front that intends to install without having to change the rest of the device.

A final objective of the present invention is provide a closure device in which the cavity for the the knob or the key mechanism is aligned with the pin, thus allowing, once mounted on glass doors or transparent, that the knob or the key mechanism cover almost the whole box, making the set pleasant aesthetically.

These and other aspects will be appreciated in a way clearer after reading a preferred embodiment of the present invention given by way of example an embodiment not limiting the most general claimed concepts The description that follows refers to the attached drawings, in the which:

Figure 1 is a side view of a first embodiment of the closure device according to the present invention in opening position, that is, with the knocker completely backwards;

Figure 2 is a side view of the device of figure 1, without the side cover of the box;

Figures 3 and 3a show respectively a partial view from below and a side view of the ratchet detail in which the square axis is introduced of the knob;

Figure 3b is a side view of the ratchet, adapted to the control with key;

Figures 4 and 4a are respectively a partial view from below and a detailed side view of the knocker;

Figure 5 is a partial view from below in detail of the safety pin;

Figures 6, 7 and 8 are three views. sides of the device according to the present invention, in which the closing / opening sequence is schematized;

Figure 9 is a partial view from below the device according to the present invention coupled to the key mechanism;

Figures 10 and 11 show two side views of a second preferred embodiment of the present invention

Referring to figure 1, the box is shown (1) that contains the knocker and the mechanisms to put it in movement, an opening (2) is made in the box through which is possible to fix the knob, or the mechanism to a cavity (3) of key, to set in motion the knocker, which is not visible because it is totally inside the box (1). Next to the opening (2), there is a second opening (6) that in a section runs horizontally, to bend after ninety degrees down. Inside the opening the plug slides (7), in solidarity with the knocker.

In the front part of the box (1) it is fixed the front (4), equipped with two through holes (5) to allow device mounting on the door. Said front can be separate from the box (1), such a technical solution allows the user choose the material or type of finish of the front (4), so that combine it with the knob or the key mechanism, without having to Change the rest of the lock.

Referring to figure 2, the same is shown device without the side cover of the box (1).

The cavity (3) is integral with the ratchet (9), which can rotate on the axis of the center of the cavity (3).

The knocker (8) can be seen completely in the inside the box and the safety bolt (10) raised. Further, the push spring (11) of the ratchet (9) is present.

Referring to figures 3 and 3a, the ratchet (9) it has two protuberances (12 and 13), the protuberance (12) is facing forward and has at its end a pin (14), while the protuberance (13) It is shaped like a hook facing back.

In the ratchet (9) a cylinder (15) is fixed whose axis coincides with the axis of rotation of the ratchet, while a bump (26) extends towards the bottom and later.

Referring to figure 3b, in this second embodiment, the ratchet has a half-shaped cavity (3 ') moon, to allow the introduction of a key instead of a knob with square shape as in the ratchet of figure 3a.

Referring to figures 4 and 4a, the knocker (8) is provided in its anterior part with a protuberance (16) with hook shape, whose head is flat, so that it is aligned with the front (4) when it is in the open position. In the back to the boss 16 is the plug (7) that protrudes laterally and serves to hold the knocker while carries out the movements inside the box.

Behind the plug (7) -Fig. 4a- are present two cams (17a and 17b) linked together, equipped with a circular profile that is oriented backwards, from the top towards the bottom.

On the back of the knocker -Fig. 4a- ha an opening (18) whose front part is shaped circular, to continue later in horizontal direction defining two protuberances (19 and 20).

The distance between the bumps (19 and 20) corresponds to the diameter of the cylinder (15) represented in the Figure 3. It is clear how the cylinder (15) acts as a guide for the back of the knocker (8), allowing the bumps (19 and 20) slide respectively above and below he.

Referring to figure 5, the bolt of security (10) is composed of a base (21) and an extension lateral (22) approximately twice as long.

The operation of the device of the present invention.

Referring to figure 6, turning the ratchet (9) counterclockwise, the plug (14), which is positioned inside the cam (17a), push out the knocker (8). The knocker movement It is linked to the pin (7), which slides inside of the opening (6) of the box (1) and that of the protuberances (19 and 20) sliding on the cylinder (15) of the ratchet (9).

Since the first section of the opening (6) is horizontal, just as the bumps are horizontal (19 and 20), the knocker moves forward while staying horizontal.

Referring to figure 7, when the plug (14) reaches the lower end of the cam (17a), the pin (7) follow the opening (6) that curves down, thus turning the knocker (8) down.

The two cams (17a and 17b) have curvatures such that when the pin (14) slides inside the cam (17a), the knocker (8) is pushed outward, when the plug (14) enters the cam (17b), the knocker is no longer pushed horizontally, but is turned down.

Continuing with the rotation of the ratchet (9), the bulge (13), which until then had sustained the safety bolt (10), allows the bolt itself to turn down to cause of the force of gravity. Referring to figure 8, when the pin (14) reaches the end of the cam (17b), the protuberance (13) is displaced completely forward and the safety bolt (10) is upright.

The base (21) of the safety bolt (10) supports now at the top of the bump (19). Thus, it prevents the knocker (8) is raised from the outside, for example, trying of forcing up the protuberance (16).

To unlock the lock it is necessary to turn clockwise the ratchet (9), thereby the protuberance (13) will thus push the lateral extension (22) of the safety bolt (10), rotating it and releasing the part upper of the protuberance (19) of the contact with the base (21).

At this point, the knocker (8) can rotate and make the opposite movement to closing, until returning to the completely backward position of figure 2.

The push spring (11) presses against the protuberance (26), so that the opening / closing mechanism act, that is, the only stable positions of the device be those of full opening or full closing, to avoid intermediate positions that would not guarantee a secure blocking of the knocker (8) on the respective hitch.

Referring to figure 9, it can be seen as a key mechanism (23) can be attached to the closing device. The key (24) is provided with a rotary handle (25), for allow the sliding door to easily enter the rack the wall, without the handle (25), protruding from the edge, hit the rack.

The closing device thus realized is composed only of four parts, introduced inside the box (1): the knocker (8), the ratchet (9), the safety bolt (10) and the thrust spring (11).

Referring to figure 10, in this second device realization the knocker (8 ') is endowed in its part rear of a plug (29) that slides inside a guide (27) made on the side wall of the box. In the part front of the plug (29) there is an opening (18) ', this opening allows positioning the cavity (3 '') inside, allowing the same time start the knocker (8 ') for operations of closing and opening.

In front of the opening (18) 'is the cam (17)', with curvature and functions analogous to those of the cams (17a, 17b) of the first embodiment, and the pin (7 ') that slides through the inside the opening (6 '), also with operation and functions analogous to those of the opening (6) of the above embodiment described.

Turning clockwise the ratchet (9 '), the pin (14'), positioned at the upper end of the ratchet (9 '), slide inside the cam (17') and push out the knocker (8 '). The knocker movement It is initially horizontal because of the guide (27) and the opening (6 ').

Referring to figure 11, when the plug (29) reaches the end of the guide (27), the feed is blocked horizontal knocker (8 '). The plug (7 ') continues its path inside the opening (6 '), which faces down causing the rotation of the knocker (8 ').

In this position, the protuberance (13 '), in the ratchet (9'), presses against the fin (28) located at the rear of the knocker (8 '). In this way, the knocker (8 ') cannot be raised from the outside, for example trying to lift the protuberance
(16 ').

To unlock the lock it is necessary to turn the ratchet (9 ') counterclockwise, thus making the knocker (8 ') effect the inverse movement to that of closing.

The thrust spring (11 ') has the function of control the opening and closing movement: the surfaces ratchet sides (9 ') are pressed by the thrust spring (11 '), forcing the ratchet (9') to adopt only two positions stable: full opening and full closing mechanism.

The closing mechanism in this second realization, it is composed of only three parts: the knocker (8 '), the ratchet (9 ') and the thrust spring (11').

The closing mechanism according to the embodiments described herein is endowed with extreme compactness, simplicity and economics of realization given the number limited of parts that compose it and the compound movement of the knocker, horizontal advance and successive rotation, which guarantees closures Accurate and safe.

Similarly, there are obvious aesthetic advantages, derived from both the compactness of the device and the advantageous positioning of the cavity for the knob, or for the mechanism of key, in the same line of advancement of the knocker, thus allowing the knob conceals the closing mechanism when it is used in transparent doors, making it unnecessary to resort to others toppings

Claims (10)

1. Closing device for internal doors or shutters; preferably applicable, but not exclusively, on internal doors and concealed sliding shutters, characterized in that it comprises a mechanism box (1), a ratchet (9, 9 ') in which a cavity (3, 3', 3 is positioned '') for a knob or control key (24), a knocker (8, 8 ') and a detachable closing front (4) of said box (1) and equipped with a passage hole for the knocker, being aligned said cavity for the knob or the control key with said passage hole. 2. Closing device according to claim 1, characterized in that the knocker (8, 8 ') has a protrusion (16, 16') in the form of a hook, which in the opening position is completely inserted into said box (1) and in the closed position it is attached to the corresponding hook mounted on the frame. 3. Closing device according to the preceding claims, characterized in that the knocker (8, 8 ') is provided in its front part with at least one pin (7, 7') that slides through at least one opening (6, 6 ' ) made on one or both side walls of the box (1). 4. Closing device according to claim 3, characterized in that said at least one opening (6, 6 ') is constituted by a horizontal section followed by a vertical section. 5. Closing device according to the preceding claims, characterized in that the ratchet (9, 9 ') is provided with at least two protuberances (12, 13, 13'), one anterior and one posterior, and because in the former it is fixed a pin (14, 14 ') to drive the ratchet. 6. Closing device according to the preceding claims, characterized in that the knocker is provided with cams (17a, 17b, 17 '), into which the pin (14, 14') of the ratchet is inserted. 7. Closing device according to the preceding claims, characterized in that it is provided with a safety bolt (10) for locking the ratchet in the closed position. 8. Closing device according to any one of claims 1 to 6, characterized in that the knocker (8 ') is provided on its rear part with a flap (28) on which the rear protrusion (13') of the ratchet (9) acts '), for locking the ratchet in the closed position. 9. Closing device according to claim 8, characterized in that the knocker (8 ') is provided at its rear with a pin (29) that slides in a horizontal guide (27), made in the side wall of the box . 10. Closing device according to any one of the preceding claims, characterized in that it is provided with a pushing spring (11, 11 ') acting on the ratchet (9, 9') by driving the device between the two opening positions and of closing.