ES1060208U - Door security device (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Security device for doors, the door being vertically movable and being provided with a suspension system, the device comprising: - an axis (2) displaceable between two positions, a first position in which said axis (2) allows the vertical movement of the door and a second position in which said axis (2) blocks the vertical movement of said door; - elastic means (3) associated with said displaceable axis (2), which tend to place said displaceable axis (2) in said second blocking position; y - retaining means (6) of said displaceable shaft (2) associated with said suspension system, which retain the displaceable shaft (2) in said first position against the action of the elastic means (3); characterized in that said retaining means are formed by a plurality of pins (6) placed circumferentially around said displaceable axis (2), at least one of said pins being housed in an annular groove (5) provided on said axis movable (2) when it is in said first position. (Machine-translation by Google Translate, not legally binding)

Description

Security device for doors.

The present invention relates to a device of security for doors, in particular for sliding doors vertically and provided with a suspension system.

Background of the invention

On vertically sliding doors provided with a counterweight suspension system is necessary place a safety device to prevent the door from falling accidentally.

A security device of this type is described in utility model U200000199. This device it comprises a movable axis between two positions, in one of the which the movable shaft is inserted into a hole provided in a U-shaped vertical guide attached to the door frame. Said axis is usually in a rest position by the action of a retention element.

In this device, this retention element it is an external element placed in front of the end of said axis scrollable This arrangement of the retention element implies that the length of the device that is placed inside the vertical guidance is considerable, which may involve friction of the device at the bottom of said guide, which can prevent the Correct operation of the device or even serious damage.

Description of the invention

With the safety device of the invention they manage to solve the aforementioned problems, presenting other advantages to be described.

The security device for doors of the The present invention is for vertically sliding doors and provided with a suspension system, comprising the device:

- a movable axis between two positions, one first position in which said axis allows vertical movement of the door and a second position in which said axis blocks the vertical movement of said door;

- elastic means associated with said axis movable, which tend to place said movable axis on said second locking position; Y

- retaining means of said movable axis associated with said suspension system, which retain the axis movable in said first position against the action of the elastic means.

From these characteristics, the device Safety of the present invention is characterized by the fact that said retention means are formed by a plurality of pins placed circumferentially around said axis movable, accommodating at least one of said pins in a annular groove provided on said movable axis when it is in said first position.

Advantageously, the end of said shaft movable is introduced, in said second locking position, in a housing of a plurality of accommodations provided in a solidarity profile to the door frame, thus avoiding have to drill the vertical U-guide that is fixed to the frame of the door.

Preferably, at least one of said pins are introduced inside said slot by action of a pulley linked to the counterweight.

According to a preferred embodiment, said means elastics are formed by a coil spring placed between said movable shaft and a voltage regulating pin of said pier.

Preferably, said pins are housed in holes provided in a bushing whose interior is housed said movable axis.

With the security device of this invention it is not necessary to place an outer stop that retain the movable shaft, since the retention means are internal Thanks to this feature, you can shorten the device length that is inserted into the vertical U-guide in solidarity with the door frame, avoiding friction of the device in the background of said guide. Otherwise, these friction could prevent the device from acting, or could cause serious damage.

Brief description of the drawings

For a better understanding of how much has been exposed Some drawings are accompanied in which, schematically and only to non-limiting example title, a case study of realization.

Figure 1 is a sectional view of the safety device of the present invention in its position of retention; Y

Figure 2 is a sectional view of the safety device of the present invention in its position of blocking, avoiding the fall of the door.

Description of a preferred embodiment

As can be seen in the figures, the safety device of the present invention comprises a bushing 1 inside which a movable shaft 2 is housed. movable shaft 2 is movable between a holding position (represented in figure 1) and a locked position (represented in figure 2).

Said movable axis 2 is linked to a coil spring 3, also housed inside said bushing 1, which tends to place said shaft 2 in the position of blocking.

Said coil spring 3 is placed between the movable shaft 2 and a regulation pin 4, through the which can regulate the tension of the spring 3, introducing it in greater or lesser extent inside the bushing 1.

Said movable axis 2 comprises a groove annular 5, inside which a plurality of pins 6. These pins 6 are placed inside some complementary holes 7 provided in said bushing 1.

The number and arrangement of the pins 6 is adequate to allow at least one of these pins 6 it is housed inside the annular groove 5 when the shaft Movable 2 is in its holding position. Experimentally It has been proven that six is an adequate number of pins.

Around these pins 6 a pulley 8, around which a cable 9 connected to a suspension system (not shown), such as a counterweight, customary in any sliding door vertically

This pulley 8, by the tension of the cable 9 produced by the suspension system, pushes at least one of said pins 6 inside the annular groove 5.

The security device of this invention is anchored in the door frame and inserted into a U-shaped vertical guide 10 which is the element that guides the door in its vertical opening and closing maneuver. In the case of the present invention, this guide 10 comprises a welded profile in the bottom thereof 11, provided with a plurality of housings 12, so that the end of the movable shaft 2 is introduced into one of said housings 12 when placed in its position of blocking.

To place the safety device of the present invention within the frame of the door, it comprises a nut set 13 and locknut 14, which is screwed on the outside of said bushing 1.

The safety device is in position of retention (figure 1) when the cable is tensioned by the action of the suspension system. The tension of the cable 9 causes the pulley 8 push up at least one of the pins 6, which is inserted inside the annular groove 5, retaining the movable shaft 2 against the action of the coil spring 3.

If for any reason the cable 9 of the system suspension is not taut, pulley 8 will stop pressing the pins 6, so that they cannot be kept inside the annular groove 5 due to the action of the coil spring 3, which will push the movable shaft 2 towards the locked position represented in figure 2.

When the movable axis 2 is placed in the locked position, its front end will be housed in the interior of one of the housings 12 of the profile 11 welded to the vertical guide 10, thus preventing the door from falling.

Although reference has been made to a concrete embodiment of the invention, is evident to an expert in the matter that the described security device is susceptible of numerous variations and modifications, and that all the mentioned details can be replaced by others technically equivalent, without departing from the scope of protection defined by the appended claims.

Claims (5)

1. Security device for doors, being the door movable vertically and being provided with a suspension system, the device comprising: - an axis (2) movable between two positions, a first position in which said axis (2) allows movement vertical of the door and a second position in which said axis (2) blocks the vertical movement of said door; - elastic means (3) associated with said axis movable (2), which tend to place said movable axis (2) in said second locking position; Y - retaining means (6) of said axis movable (2) associated with said suspension system, which they retain the movable shaft (2) in said first position against the action of the elastic means (3); characterized in that said retention means are formed by a plurality of pins (6) placed circumferentially around said movable axis (2), at least one of said pins being housed in an annular groove (5) provided on said axis movable (2) when it is in said first position. 2. Safety device according to claim 1, characterized in that the end of said movable shaft (2) is introduced, in said second locking position, into a housing (12) of a plurality of housings provided in a profile (11) in solidarity with the door frame. 3. Safety device according to claim 1, characterized in that at least one of said pins (6) is inserted into said annular groove (5) by the action of a pulley (8) linked to the suspension system. 4. Safety device according to claim 1, characterized in that said elastic means are formed by a helical spring (3) positioned between said movable shaft (2) and a tension regulating pin (4) of said spring (3). Device according to claim 1, characterized in that said pins (6) are housed in holes (7) provided in a bushing (1) inside which said movable shaft (2) is housed.