ES1063479U - Perfected picaporte for doors (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improved latch for doors, of the type that have a housing in which there is a latch bolt that emerges through the front window, prismatically and belonging to an oscillating support in the housing, being acted by the rotation of a square key that rotates the nut in the direction of opening, there being a mechanism of condemnation that prevents the opening from the outside when rotating the concave nut in a position in which it intercepts the rotation of the oscillating support, and retaining the latch in the corresponding pocket to have both magnets, characterized in that the opening nut (9) has two radial projections (13, 16) one with a transverse pin (14) that plays in a groove (15) in the housing ( 3) limiting the rotation thereof and assisted by a compression spring (10), the other radial projection (16) being in contact with the end of an oscillating lever (11) by a paracentral point, the other end of which contacts with a radial extension (19) of the oscillating support (1) carrying the closing latch (5) and the end arm (18) of the oscillating lever (11) being assisted by a compression spring (21) that keeps it pressed against the radial projection (16) of the opening nut (9). (Machine-translation by Google Translate, not legally binding)

Description

Improved door handle.

Object of the invention

The present invention, as expressed by the set forth in this specification, refers to a latch perfected for doors and as such presents remarkable relevant characteristics and technical advantages over others Conventional latches that can be considered of their type.

It is an object of the invention to achieve a precise operation further simplifying the mechanism by reducing The number of pieces.

Background of the invention

Currently there is a latch that in the closing position, your latch acquires the emergency position to get into the pocket when being attracted to an existing magnet in the same. The latch is integral with an oscillating support in the housing and also has another magnet that collaborates with the previous one. The opening is done by turning the nut operated by the key square against the action of a spring that assists it and to through a set of levers, keeping the position retracted of the latch when the door is open and the key in position at rest, by means of this second magnet referred to and which is supportive from the latch itself. When the door is closed again, the latch emerges when being magnetically attracted.

It also has a conviction mechanism that prevents the swinging bracket from rotating in the direction of retraction of the latch.

In this known latch, the latch from the nut commanded by the turn of the key square (type of handle or knob) by two pieces: one of which is a swing lever at one end and the other is another lever driven by the first and capable of performing a angular displacement that drags the handle. This same second lever can also move linearly when actuated by the conviction key and in this case the first oscillating lever does not interfere with the second lever, the opening, that is, the conviction position is achieved.

Description of the invention

In general, the improved latch for doors that the invention proposes, even being of the type commented in the previous section, presents an optimal distribution of the mobile elements involved in its operation, together with a smaller number of pieces as we will see more clearly in relation to the figures. The nut moved by the handle acts on a swinging carrier carrier also of the latch latch but does so only through one oscillating lever by a paracentral point thereof.

The opening nut has two protrusions radial: one on which the recovery spring of the resting position, and the other acting on the only lever intermediate oscillating mechanism, also assisted by another spring.

When the nut is turned, so does the oscillating lever and its active end presses on a wide radial extension of the oscillating support itself and the latch Prismatic comes out of the cashier overcoming the magnetic attraction.

In this case, the conviction device is totally independent and is only determined by the corresponding sentence nut provided with a radial extension liable to acquire two positions: one in which it interferes with the swing path of the swinging carrier carrying the latch, or conviction position, and another in which he is released. Both positions they are fixed with conventional retention means such as for the assistance of a pier.

To facilitate the understanding of characteristics of the invention and forming an integral part of this Descriptive report is accompanied by sheets of plans in whose figures, with an illustrative and non-limiting nature represented the following:

Brief description of the drawings

Figure 1. It is a schematic elevation view side of the latch improved for doors subject to invention, in closed door position and therefore with the latch inserted in the pocket.

Figure 2. It is a schematic view similar to the Figure 1, in the turning position of the handle to open the door.

Figure 3. It is a view similar to the figures above, in the open door position and once the handle recovers its resting position and the latch is removed of the cashier.

Figure 4. It is a view of the handle in position closed door as figure 1 and with the sentence cast.

Description of the preferred embodiment

Referring to the numbering adopted in the figures, we can see that the latch perfected for doors that the invention proposes, is constituted in this form of embodiment, by the oscillating support (1) that rotates around the shaft (2) fixed in the housing (3) and that has the magnet (4) located in the latch (5) which is prismatic. In figure 1 (position of door closed) the latch (5) that emerges from the front (6) is found inserted in the pocket (7) when attracted by its magnet (8).

The oscillating support drive (1) for open the door and acquire the position of figure 2, it performs by turning the opening nut (9), against the spring action (10) and by means of the oscillating lever (11) which rotates at a central point thereof, around the axis (12).

The opening nut (9) has an arm or radial projection (13) on which the spring 10 rests exerting its pressure to occupy the position of figure 1, that is, with the pin (14) at one end of the groove (15) that marks the limit positions of the angular travel of the nut (9) per turn with the square key not shown in the figures. Too it has the second radial projection (16) with which it pushes the arm (17) of the oscillating lever (11).

The turn of the nut (9) clockwise causes the counterclockwise rotation of the oscillating lever (11) and its arm (18) presses on the radial extension (19) of the  oscillating support (1) making it rotate in the opening direction or latch retraction (5). Thus occupies the opening position with turned handle as shown in figure 2.

In these conditions the door opens and you already you can release the handle, recovering the nut from its original position resting, assisted by its spring (10). Figure 3 shows this arrangement and in it you can see the latch (5) that is keeps retracted so as not to impede the subsequent closure of the door, because its magnet (4) is attracted to the walls metal housing of the window environment (20).

Reference (21) designates the spring that drives to the oscillating lever (11) towards the contact with the nut (9) of opening and that also collaborates in the recovery of the handle of opening.

When the door closes, passing from the position of figure 3 to that of figure 1, when confronting the latch (5) with the pocket (7) it is magnetically attracted and Enter it.

Making special reference to figure 4 and comparing it with figure 1 in which both show the position of door locked, in figure 4 the conviction key is operating referenced with (22) and that is assisted by the spring (23) that Set your two turn limit positions as usual. its radial extension (24) prevents the rotation of the oscillating support (1) in clockwise and latch 5 cannot exit the pocket (7). In Figure 1 and also in Figures 2 and 3 the rotation is allowed to be the nut of the sentence (22) in the position of liberation or not interference.

The projection (25) of the conviction nut (22) fulfills the function of a limit stop against the radial projection 19 of the oscillating support (1) when the mechanism is in the position of figure 3, preventing the rotation towards the position of condemnation of the nut (22).

In the position of figure 4, the projection (25) It is free and allows the counterclockwise rotation of the nut of sentence (22) to the position represented in said figure, in which the whole is doomed.

The protrusion 25 of the condemnation nut 22 also fulfills the function of the swing stop limit stop of the oscillating support one.

With this simple mechanism you get perfectly the correct operation of this latch that the invention proposes.

Claims (2)

1. Improved latch for doors, of the type that have a housing in which there is a latch that emerges through the front window, prismatic and belongs to a swinging support in the housing, being operated by the rotation of a square key that rotates the nut in the direction of opening, there is a condemnation mechanism that prevents opening from the outside by turning the sentence nut in a position where it intercepts the rotation of the oscillating support, and retaining the latch in the corresponding pocket when both have two magnets, characterized in that the opening nut (9) has two radial projections (13, 16), one with a transverse pin (14) that plays in a groove (15) in the housing ( 3) limiting the rotation of the latter and assisted by a compression spring (10), the other radial projection (16) being in contact with the end of an oscillating lever (11) by a paracentral point, the other end of which contacts with a radial extension (19) of the oscillating support (1) carrying the closing latch (5) and the end arm (18) of the oscillating lever (11) being assisted by a compression spring (21) that keeps it driven against the radial projection (16) of the opening nut (9). 2. Improved door handle, according to claim 1, characterized in that the oscillating lever (11) when turned commanded by the opening nut (9) presses on the radial extension (19) of the oscillating support (1) so that the latch is retracted (5) overcoming the magnetic action and allow the opening.