ES1061665U - Lock (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Lock, of special application to sliding leaves and of the type that have a housing formed by a box and its lid, inside which is a latch that is likely to emerge through a window provided on the front, powered by a square key through an opening and closing mechanism, characterized in that the latch (8) is rotatable in a fixed internal point (9) and has a lug (11) that plays in a slot (10) in "L" "provided on a cam (6) secured to the inlet slot (7) of the square key, the cam (6) being assisted by a spring (12) which fixes the closing and opening positions. (Machine-translation by Google Translate, not legally binding)

Description

Lock.

Object of the invention

The present invention, as expressed by the set forth in this specification, refers to a lock and  It is especially applicable to sliding doors, with some relevant and advantageous features against locks Current of its kind.

This type of locks gets the lock both in the closed and open position, through a system whose mechanism is more complex than the one at hand, being composed of a greater number of component elements.

It is an object of the invention to provide a mechanism  simple, with few elements and that nevertheless behaves effectively.

Description of the invention

In general, the lock object of the invention achieves blocking and unlocking by means of a piece that acts as a cam and that is in solidarity with the input nut of the square key and therefore turns with it. The cam moves to another piece that acts as a hook materializing the latch of closure that will connect to the strike.

A "V" spring anchored to a fixed point of the housing has an arm that presses against the cam to stabilize the turning limit positions: opening and closing.

The cam has a trapecial shape with a turn in a vertex where the nut is. In proximity to both sides opposites and along them there is an "L" slot in the playing a busty swivel latch around an axis located at a fixed point of the housing. The groove ends in "L" define the opening and closing positions stabilized by the spring.

In the opening position, the entire latch remains hidden inside, flush with the front the outermost face of the same.

In the closed position, the latch emerges and lets see outside the rectangular recess that engages in the pocket and which results in the formation of the hooked end of the latch.

Both positions are stable, not only because there is the spring that assists the cam, but because in both cases the location point of the pin at the end of the groove, or the proper form of the latter, prevent it. While not acting on the square key, the latch does not move by action directly on it from the outside, as we will see later in Relationship with the figures.

To facilitate the understanding of characteristics of the invention and forming an integral part of this Descriptive report, accompanying some 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 side elevation view of the lock object of the invention, devoid of the cover to see the internal components of the housing, in the closed position and as if it were mounted on a sliding blade.

Figure 2.- It is a front view of what is shown in Figure 1

Figure 3.- It is a perspective view of the full lock.

Figures 4 to 6.- They are similar views to the respective figures 1 to 3, in the opening position.

Description of the preferred embodiment

Referring to the numbering adopted in the figures we can see how the lock that the invention proposes It consists of the housing (1) formed in turn by the box (2) and the cover (3) that make solidarity with each other and the front (4). He front (4) has mounting holes (5) in the edge of the blade of sliding, being locked the lock.

Inside the housing (1) is the cam (6) solidarity of the nut (7) operated by the square of the handle or square key, not shown in the figures. There is also the latch (8) that is swinging around of the fixed shaft (9) transverse to the housing (1).

Reference (10) designates the slot in "L" of the cam (6) in which the latch (11) of the latch (8) plays. He rotation of the cam (6) involves the drag in rotation of the latch (8) as discussed below.

The cam (6) is assisted by the spring (12) in spiral mounted on the fixed point (13) of the housing and whose arms ends (14) and (15) maintain the stable position of the cam (6). Comparing the two limit positions of the cam rotation (figures 1 and 4) for closing and opening the lock respectively, we see that in this position the ledge (16) formed intervenes between two milling of the cam (6), which is placed one or the other side. The arm (16) of the spring (12) rests on one or the other milling. The latch (8) has the rectangular recess (17) of hitch in the strike (not shown) in the closed position.

Starting from the position shown in figure 1, or closing position, by turning the nut (7) clockwise by actuate the square key, the pin (11) moves along the slot (10) until the latch (8) retracts fully until occupy the position of figure 4 or opening position. The busty (11) butt at the other end of the "L" slot (10) and the arm (14) of the spring (12) rests on the other milling, leaving the projection (16) below (figure 4). Autoblock occurs in this position. As long as the latch (8) is not locked. comes out to produce the closure.

When moving from the open position (figure 4) to the closing one (figure 1), the nut (7) turns counterclockwise and  the pin (11) is forced to move through the slot (10) until reach the upper end, turning the latch (8) in the direction schedule. In this position the self-locking is also produced by the layered shape of the groove (10). Although the front is pressed latch (8), cam (6) prevents its rotation and therefore does not acts of slipping. As long as the key is not turned, the latch (8).

Claims (4)

1. Lock, of special application to sliding leaves and of the type that have a housing formed by a box and its cover, inside which is a latch that is likely to emerge through a window provided on the front, operated by a square key through an opening and closing mechanism, characterized in that the latch (8) is rotatable in a fixed interior point (9) and has a pin (11) that plays in a slot (10) in "L "provided on a cam (6) integral with the nut (7) of the input of the square key, the cam (6) being assisted by a spring (12) that fixes the closing and opening positions. 2. Lock, according to claim 1, characterized in that the cam (6) has a general trapecial shape with rotation at the vertex opposite the two sides in which the "L" slot (10) of wings parallel to them is tucked . 3. Lock, according to claim 1, characterized in that the latch (8) has a rectangular recess (17) that emerges outside the front (4) in the closed position, and in the open position is located inside the housing (1) without the latch (8) peeking outside. 4. Lock, according to previous claims, characterized in that the limit positions of rotation of the latch (8), linked to the ends of the groove (10) in "L" in which the latch (11) of the latch (8) stops , are stably defined by a protruding appendix (16) located at the vertex of rotation of the cam (6), formed in turn between two millings thereof and which is located on either side of the point of tangency with the movable arm (14) of the spring (12) that assists you.