ES1271285U - OPERATOR DEVICE FOR AUTOMATIC DOORS (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Operator device for automatic doors, which comprises a support structure (40) with guides (41) for the movement of carriages (42) that support sliding leaves, a motorization group (1) to drive the aforementioned carriages ( 42) and an electronic control board (5) that integrates input circuits for different presence, door and key position sensors and output circuits for at least one drive motor (2) that is part of said group of motorization (1) and is an alternating current induction motor (2), ACIM characterized in that said motorization group (1) comprises two ACIM motors (2), which are arranged at opposite, distal ends of the operating device, with its drive shafts (51) connected to drive pulleys (52) that directly attack sections of the same toothed belt (53) which extends longitudinally along said support structure (40), through of a single section in a closed circuit surrounding said driving pulleys (52), said two motors (2) being synchronized through said toothed belt (53) and said electronic control board (5) including a motor control system configured to provide a voltage variation and a frequency variation independently for each motor (2).

Description

description

d is p o s it iv o o p e r a d o r for pu e r ta s a u t o m á t ic s Field of technique

This utility model concerns the technical field of automatic doors, in particular pedestrian sliding doors for access control, airport boarding gates, as well as industrial high-speed doors, loading docks type or large-area sectoral doors. hypermarkets, and also sliding windows.

In particular the invention relates to an operator device for automatic doors. State of the art

Numerous automatic pedestrian door operator devices are known. Its operation is quite simple. Movement sensors are installed in the standard automatic sliding door that when they detect that someone is approaching the door, it opens. After a few seconds it closes, after the subject leaves the area defined by the electronics software that governs the entire system.

The motors for automatic doors work with different types of motors of different powers and electronic control technologies. Said motors are connected to transmission means such as pulleys that drive belts to which carriages are attached where the doors are fixed.

By way of example, several patent documents may be cited: ES2017309A6, ES2312301A1, ES2163967A1 (B2) and ES1245709U (Y).

This invention provides improvements in the operating devices that provide an effective synchronization of two motors through a toothed belt (closed belt) that surrounds driving pulleys.

Brief description of the invention

The invention refers to an operating device for automatic doors, comprising according to conventional technique:

• a support structure with guides for the movement of carriages that support sliding leaves,

• a motorization group to drive the aforementioned trolleys and

• an electronic control board that integrates input circuits for different presence sensors, position of doors and keys and some output circuits for at least one drive motor that is part of said motorization group and is an alternating current induction motor, ACIM.

According to the proposal of this invention, said motorization group comprises two ACIM motors (for example, a squirrel cage induction motor) that are arranged at opposite, distal ends of the operating device, the driving shaft of each motor being connected to a driving pulley that directly attacks some sections of the same toothed belt, which extends longitudinally through a single section in a closed circuit surrounding said two driving pulleys. T ^he two said motors are synchronized by said toothed belt and said electronic control board includes a control system of the two motors configured to provide a voltage variation and a frequency variation independently for each motor.

According to a non-limiting embodiment, the driving pulleys of said driving shafts are connected to the belts through a reduction transmission stage.

Other characteristics of the invention will appear in the following detailed description of an embodiment.

Brief description of the figures

The foregoing and other characteristic advantages will be more fully understood from the following detailed description of an exemplary embodiment with reference to the attached drawings, which should be taken by way of illustration and not limitation, in which:

Fig. 1 shows a side elevation view of one of the motors with a driving pulley set on its shaft.

Fig. 2 shows a sectional elevation view of one of the engines associated with a support structure provided by an elongated profile.

Figs. 3A and 3B are respective rear and front views, respectively, of the power unit, supported by the supporting structure, noting that it comprises two motors, located in the extreme areas of said structure.

Fig. 4 is a perspective view of the assembly of the operator device for automatic doors of this invention.

Fig. 5 is a perspective view of an exemplary embodiment intended for operating larger doors.

Fig. 6 is a front detail view of an embodiment that includes a transmission stage with reduction.

Detailed description of some examples of realization

The attached figures show various exemplary embodiments with a non-limiting illustrative character of the present invention.

Figures 2, 3A, 3B and 4 show an operating device for automatic doors which comprises a support structure (40) with guides (41) for moving carriages (42) that support sliding leaves, a motorization group (1) to drive the aforementioned trolleys (42) and an electronic control board (5) that integrates input circuits for different presence, door and key position sensors and output circuits for at least one drive motor (2) that is part of said motorization group (1) and is an alternating current induction motor (2), ACIM.

According to the proposal of this invention, the aforementioned motorization group (1) comprises two ACIM motors (2) with their drive shafts (51) connected to drive pulleys (52) that directly attack sections of the same toothed belt (53) which extends longitudinally along the supporting structure 40 through a single section in a closed circuit surrounding said driving pulleys (52) that are arranged at opposite, distal ends of the operating device. The two motors (2) are synchronized by means of said toothed belt (53) and said electronic control board (5) includes a motor control system (2) configured to provide a voltage variation and a frequency variation of independently for each motor (2).

As can be seen in the exemplary embodiment of Fig. 6, the driving pulleys (52) of said driving shafts (51) are connected to the belts through a transmission stage with reduction (60) comprising an auxiliary belt (61) that connects the driving pulley (52) of each motor with a pulley of greater diameter (62) that has a third pulley of lower diameter (63) in its center, around which an end sector of said pulley extends toothed belt (53).

With reference to Fig. 2 it can be indicated that said carriage (42) is connected to a first end of an arm (44) and a second end of the arm (44) is connected to a section of said toothed belt (53) .

In Fig. 5 it can be seen that the aforementioned support structure (40) comprises a longitudinal profile (45) that provides an anchor for the two mentioned ACIM motors (2), at some end points of the profile, for the pulleys (52) of said toothed belt (53) and for said electronic control board (5). In this same Fig. 5 it can be seen that a longitudinal extension portion was included to cover doors of larger dimensions.

Furthermore, in this Fig. 5 a cover casing (70) can be seen, for protection of the whole operator device for automatic doors.

It should be noted that by means of the operating device of this invention it is possible that with a closed belt motorization group (1) with a distance between the driving axles (51) of the motors (2) of 1135 mm, it allows a door opening of up to 2000 mm.

Claims (5)

1. Operator device for automatic doors, comprising a support structure (40) with guides (41) for moving carriages (42) that support sliding leaves, a motorization group (1) to actuate the aforementioned trolleys (42) and an electronic control board (5) that integrates input circuits for different presence sensors, position of doors and keys and output circuits for at least one drive motor (2) that is part of said motorization group (1) and it is an alternating current induction motor (2), ACIM characterized in that said motorization group (1) comprises two ACIM motors (2), which are arranged at opposite, distal ends of the operating device , with its drive shafts (51) connected to drive pulleys (52) that directly attack sections of the same toothed belt (53) which extends longitudinally along said support structure (40), through through a single section in a closed circuit surrounding said driving pulleys (52), said two motors (2) being synchronized through said toothed belt (53) and said electronic control board (5) including a control system of the motors configured to provide a voltage variation and a frequency variation independently for each motor (2). 2. Operator device for automatic doors, according to claim 1, characterized in that the driving pulleys (52) of said driving shafts (51) are connected to the belts through a transmission stage with reduction (60). 3. Operator device for automatic doors, according to claim 2, wherein said transmission stage with reduction (60) comprises an auxiliary belt (61) that connects the driving pulley (52) of each motor with a pulley of greater diameter (62 ) having a third pulley with a smaller diameter (63) around which an end sector of the toothed belt (53) extends. 4. Operator device for automatic doors according to claim 1, wherein said carriage (42) is connected to a first end of an arm (44) and a second end of the arm (44) is connected to a section of said toothed belt (53). Operator device for automatic doors, according to any one of the preceding claims, characterized in that said support structure (40) comprises a longitudinal profile (45) that provides an anchor for the two mentioned ACIM motors (2), at some end points of the profile, for the pulleys (52) of said toothed belt (53) and for said electronic control board (5).