WO2021118507A1

WO2021118507A1 - A locking system for elevator hall doors

Info

Publication number: WO2021118507A1
Application number: PCT/TR2020/051266
Authority: WO
Inventors: Tolga SOGUCAK; Yasemin SOGUCAK
Original assignee: Eds Inovasyon Makine Ve Otomasyon Ltd. Sti.
Priority date: 2019-12-09
Filing date: 2020-12-09
Publication date: 2021-06-17
Also published as: TR201919680A2

Abstract

The invention relates to an elevator hall door (HD) locking system for locking elevator hall doors (HD) comprises an arm (10) is configured to be moving with the hall door (HD) and is rotatably connected to an arm shaft (11); at least one magnet (12) connected to the arm (10 ) such that positioned on the right and/or left of the arm shaft (11); a lock (14) and a lock striker (13), one of which is arranged at one end of the said arm (10) and the other is arranged at a fixed point and preventing the opening of the hall door (HD) by connecting to each other in the lock position; an electromagnet (20) arranged to move together with the elevator cabin (C) and when the elevator cabin (C) reaches the floor where the hall door (HD) is located, such that enables the said lock (14) and the lock striker (13) to be separated from each other by interacting with the said magnet (12) and rotating the said arm (10) on the axis of the arm shaft (11).

Description

A LOCKING SYSTEM FOR ELEVATOR HALL DOORS

TECHNICAL FIELD

An invention relates to a hall door lock system for keeping the hall doors locked when the elevator car is not on the floor in elevator installations and to open the hall door when the car arrives at the relevant floor.

BACKGROUND OF THE INVENTION

In elevator installations, the car carrying passengers moves between the floors of the elevator shaft. When the cabin reaches the selected floor, both the cabin door and the hall door of the relevant floor are opened and the users exit the cabin.

For security reasons, the hall door should be locked so that it can not open when the cabin is not on the floor.

In the known state of art, locking is realized by a lock mechanism and elevator door spoon mechanisms, also known as "skate" or "blade", which enable the lock to be unlocked by driving the said lock mechanism.

The main function of the door spoon mechanisms is to drive the hall door lock to unlock it only when the car stops at the floor, and to keep the hall door in the locked position by not interacting with the lock while the car passes through the floor without stopping.

An example of mentioned door spoon can be seen in the document with publication number EP1331193A1.

The basic working principle of the known technique of the door spoon and hall door lock system is shown in Figures 5 and 5.A. Flail door lock mechanism includes an arm with wheels that are rotatably provided at both ends and by performing a rotational movement on a shaft axis to which the arm is connected, enables a lock to enter and exit the lock striker. Flere, the rotational movement of the arm is caused by the spoon, which is connected to the elevator car, hit the wheels.

The spoon comprises two parallel extensions and multiple arms connecting the extensions to each other. As shown in Figure 5, when the car do not stand on the floor, the distance between the extensions is greater than the distance between the wheels. In this case, the spoon passes between the wheels without any contact. When the cabin stands on the floor, the arms move between the spoon extensions and increase the width of the spoon as in Figure 5. A, and by making the extensions hit the wheels, it opens the hall door lock.

The spoon mechanism often breaks down as it operates with a slamming motion and prevents the use of the elevator. Especially the complicated arrangement in the spoon mechanism significantly reduces the resistance of the mechanism against impacts.

Another problem with the spoon mechanisms is that it creates a large distance between the hall door and the elevator cabin door, as it is an extremely large structure.

As a result, all above-mentioned problems necessitate an innovation in the respective field.

OBJECT OF THE INVENTION

The present invention aims at overcoming the above-mentioned problems and achieving an innovation in the respective technical field.

The object of the invention is to present a hall door lock system structure in elevator installations to keep the hall doors locked when the elevator car is not on the floor and to open the hall door when the car arrives at the relevant floor.

Another object of the invention is to reveal a more durable hall door lock structure by eliminating the need for elevator spoon.

Another object of the invention is to reduce the distance between the cabin door and the hall door by introducing a locking mechanism structure that will take up less space than the elevator spoon.

BRIEF DESCRIPTION OF THE PRESENT INVENTION

In order to fulfill all of the objects to be appreciated from above-mentioned and the following description in detail, the present invention is a hall door locking system to lock elevator hall doors. Accordingly, the invention comprises an arm is configured to be moving with the hall door and is rotatably connected to an arm shaft; at least one magnet connected to the arm such that positioned on the right and/or left of the arm shaft; A lock and a lock striker, one of which is arranged at one end of the said arm and the other is arranged at a fixed point and preventing the opening of the hall door by connecting to each other in the lock position; an electromagnet arranged to move together with the elevator cabin and when the elevator cabin reaches the floor where the hall door is located, such that enables the said lock and the lock striker to be separated from each other by interacting with the said magnet and rotating the said arm on the axis of the arm shaft.

Another preferred embodiment of the invention comprises a magnet on the right and left of the shaft connected to the arm.

In another preferred embodiment of the invention, the magnets are rotatably connected to the arm.

In another preferred embodiment of the invention, when the electromagnet hall door is in the locked position, it is positioned to remain between two magnets.

In another alternative embodiment of the invention, the magnets are arranged off axis with respect to each other.

Another preferred embodiment of the invention comprises a magnet connected to the arm on the right or left of the arm shaft.

In another alternative embodiment of the invention, the electromagnet is arranged to push the magnet.

In another preferred embodiment of the invention, the electromagnet is arranged to pull the magnet.

In a preferred embodiment of the invention, the gravity center of the arm is arranged in such a way that the lock and the lock striker remain in the locked position when there is no force on the arm.

In another preferred embodiment of the invention, the gravity center of the arm is provided on the other side of the shaft relative to the lock.

In an alternative embodiment of the invention, the gravity center of the arm is provided on the shaft. In another preferred embodiment of the invention, the hall door is arranged to open to the right or left.

In an alternative embodiment of the invention, the hall door is arranged to be closed and opened in the middle.

In an alternative embodiment of the invention, the arm is positioned on a hall door and the lock or lock counterpart on the other hall door.

In a preferred embodiment of the invention, the arm shaft is arranged in such a way that it extends perpendicular to the hall doors.

In a preferred embodiment of the invention, the lock is connected to a fixed point and the lock counterpart to the arm.

A preferred embodiment of the invention, includes an object connected to the elevator cabin door in such a way that hits the magnet when the elevator cabin door moves when the lock is in the closed position.

In a preferred embodiment of the invention, the electromagnet is connected to the cabin door so that it hits the magnet when the elevator cabin door moves when the lock is in the closed position.

In order to fulfill all of the objects to be appreciated from above-mentioned and the following description in detail, the present invention is an elevator installation in the elevator shaft that includes an elevator cabin arranged to move between floors and an elevator movement system that will provide the relevant movement.

A preferred embodiment of the invention is a hall door lock system according to any of the above claims at hall entrances; includes a control unit that separates the lock and lock striker of the arm by activating the electromagnet when the elevator car stops at one of the hall entrances and enables the arm to remain in the lock position by keeping the electromagnet in the closed position when the elevator car passes without stopping at said hall entrances.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a representative front schematic view of an embodiment of an elevator hall door. Figure 1 .A is a representative top schematic view of an embodiment of an elevator hall door.

Figure 2 is a schematic front view of an embodiment of the subject door when the lock system in the locked position.

Figure 2. A is a schematic front view of an embodiment of the hall door lock system in transition from the locked position to the open position.

Figure 3 is a front view of an embodiment of the lock and lock striker in the locked position.

Figure 4 is a schematic top view of an embodiment of the door lock system.

Figure 5, is a schematic front view a hall door lock system of the prior art in the locked position.

Figure 5A is a schematic front view the transition of a hall door lock system of the prior art from locked to open position.

The drawings do not necessarily need to be scaled, and details that are not necessary to understand the present invention may be omitted. Furthermore, elements that are at least substantially identical or at least have substantially identical functions are indicated with the same number. The X, Y and Z directions shown in the figures are used to show the same direction in all figures.

REFERENCE NUMBERS OF THE DRAWNINGS

1. Guide rail

2. Carriage

10. Arm

11. Arm shaft

12. Magnet

121. Magnet shaft

13. Lock striker 131. Lock opening

14. Lock

141. Teeth 142. Recess

143. Angled edge

15. Striker

15. Striker teeth

16. Strike plate 20. Electromagnet

21. Winding E. Elevator mechanism C. Cabin CD. Cabin door HD. Hall door S. Elevator shaft K. Spoon L1. Primary width L2. Secondary width A. Arm axis BP. Back plate

DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, a lock system for elevator hall doors (HD) have been disclosed with non-limiting examples in order to further describe the subject matter of the invention.

An invention relates to a lock system for elevator hall doors (HD) subjected to keep the hall doors (HD) locked when the elevator (E) cabin (C) is not on the floor and to open the hall door (HD) when the cabin (C) reaches the relevant floor.

The invention relates to a hall door (HD) lock system to lock the elevator (E) hall doors (HD) comprises, an arm (10) is configured to be moving with the hall door (HD) and is rotatably connected to an arm shaft (11 ); at least one magnet (12) connected to the arm (10) such that positioned on the right and/or left of the arm shaft (11 ) ; A lock (14) and a lock striker (13), one of which is arranged at one end of the said arm (10) and the other is arranged at a fixed point and preventing the opening of the hall door (HD) by connecting to each other in the lock position,; an electromagnet (20) arranged to move together with the elevator cabin (C) and when the elevator cabin (C) reaches the floor where the hall door (HD) is located, such that enables the said lock (14) and the lock striker (13) to be separated from each other by interacting with the said magnet (12) and rotating the said arm (10) on the axis of the arm shaft (11).

Referring to Figure 1 ; The mentioned hall doors (HD) are arranged at each floor entrance. At least one of the hall doors (HD) is connected to a carriage (2). The said carriage (2) can move on both sides in the horizontal X direction on a guide rail (1 ), and with this movement, the hall door (HD) moves in the same X direction. The guide rail (1 ) and the carriage (2) are in the prior of the art and are used for many hall doors (HD) on the market.

Preferably, the hall door (HD) may be a structure that can be opened and closed by moving sideways in the X direction, or alternatively, it may also be arranged as a structure that can slide towards each other in the X direction and close at the middle of the hall entrance.

Figurel .A a schematic top view is given. In the said figure, the elevator (E) cabin (C) is shown in front of the hall door (HD). The cabin (C) is arranged to move in the Y direction in an elevator shaft (S) and includes an elevator movement mechanism (not shown in the figures) to provide said movement. The elevator travel mechanism includes guides, rope and elevator traction motor, and there are many variations that can be easily applied by a skilled person in the art.

An electromagnet which is (20) moving along the Y axis with both of the lock arm (10) and the elevator cabin (C) is positioned in such a way that they interact with each other, when the cabin (C) reaches or approaches the hall door (HD) level,

The arm (10) is arranged to move together with the hall door (HD).

Referring to Figures 2 and 2. A; The arm (10) is connected in way to move together with the carriage (2). It was previously stated that the car moved with the hall door. The carriage (2) moves in the direction of the horizontal arrow on the guide rail (1 ). The arm (10) is connected to the mechanism by means of an arm shaft (11 ) and it is arranged to rotate in the axis of the arm shaft (11 ). Here, the arm shaft (11 ) preferably passes through the middle of the arm. The arm shaft is arranged to extend in the z direction, i.e in the direction extending from the hall door (HD) to the cabin.

At one end of the arm (10), the lock striker (13) is connected or provided as integrated into the arm (10). A lock (14) suitable for the lock striker (13) is connected to a fixed point. The fixed point may be, for example, the back plate (BP) on which the guide rail (1) is arranged. Here, the lock (14) is arranged in the position where the lock striker will place into , when the hall door (HD) is completely closed.

In an alternative embodiment, at one end of the arm (10), the lock (14) is connected or provided integrated into the arm (10). The lock striker (13) is provided at a fixed point.

In Figure 3, an embodiment of the lock striker (13) and the lock (14) is shown in the locked position. A lock opening (131 ) is arranged on the surface of the lock striker (13). Preferably, the lock opening (131 ) is arranged to come out of the tooth (141 ) formed to extend in the Y direction on the lock (14), when the lock counterpart (13) rotates in the direction of the arrow in Figure 3. When the lock opening (131 ) comes out of the tooth (141 ), the movement in the x direction of the arm (10) and hence the hall door (HD) becomes possible.

In addition, the lock (14) may also include a secondary tooth (141 ) and a recess (142) formed between the teeth (141 ).

An angled edge (143) may be formed on the side surface of the lock (14). Said angled edge (143) enables the lock striker (13) to settle into the lock (14) while transitioning from the open position to the locked position. Namely, while switching from the open position to the closed position, the lock striker (13) is positioned horizontally as in Figure 3 and moves towards the lock (14) in the X direction. As a result of this movement, the lock striker (14) contacts the angled edge (143), rotates partially in the direction of the arrow in Figure 3 and moves to a position to sit on the tooth (141 ).

Apart from the arm (10), lock (14) and lock striker (13), a striker (15) connected to the arm(10) and a key striker where the teeth (151 ) of the striker (15) are placed when the hall door (HD) is in the lock position (16). With the combination of the striker (15) and the striker teeth (151 ), a signal is generated that the hall door (HD) is closed and / or conversely, a signal is generated that the hall door (HD) is open with the separation of the striker (15) and the striker teeth (151 ). Here, the striker (15) and the striker teeth(151 ) act as a sensor for detecting the status of the door lock.

Referring to Figures 2 and 2.A; Magnets (12) are positioned at both ends of the arm (10). Magnets (12) cause the arm (10) to rotate by interacting with an electromagnet (20) as will be explained later.

The magnets (20) are preferably arranged offset with respect to each other. The expression "offset axis" corresponds to an axis A passing through the center point of the arm (10) as in Figure 2, where the center of one of the magnets (20) is at the upper part of the axis A, and the center of the other is at the lower part of the A axis. This off-axis arrangement makes the magnets (20) more easily interact with the electromagnet (20) to rotate the arm (10).

In Figure 2, the movement direction of the electromagnet (20) is shown with a vertical arrow. This movement is carried out with the cabin (C). Electromagnet can be directly connected to the cabin (C) or to another element connected to the cabin (C). The essential point here is that the electromagnet (20) is in such a position that it can interact with the magnets (12) when the cabin (C) reaches the hall door (HD) level. Preferably, the electromagnet (20) is positioned to stay between two magnets (12) as in Figure 2.A when the hall door (HD) is in the locked position.

As the electromagnet (20) moves in the direction of the arrow in Figure 2 and comes to the position in Figure 2. A, the electromagnet (20) interacts with the magnets (12) in such a way that the arm (10) rotates in the axis of the arm shaft (11 ).

The poles of the electromagnet (20) are occured according to the direction of the current given to windings (21 ) of the electromagnet (20). Here, magnets (20) with poles suitable for the polar direction of the electromagnet (20) are selected. For example, the pole of the magnet (12) on the right facing the electromagnet (20) is selected to match the pole facing the electromagnet (20), while the electromagnet (20) is allowed to push the relevant magnet (12). The pole of the magnet (12) on the left facing the electromagnet and the pole facing the electromagnet (20) are selected in an opposite way, enabling the electromagnet (20) to attract the relevant magnet (12) and accordingly, the arm (10) rotates and separates the lock (14) and lock striker (13). Many of such pole arrangements can be arranged to rotate the respective arm (10). In addition to the double magnet (12) structure above, similar results can be obtained with a single magnet (12). For example, only the right side of the arm (10) can be arranged such that a magnet (12) is pushed by the electromagnet (20), and as a result of this pushing, the arm (10) rotates. Conversely, only the left side of the arm (10) can be arranged such that a magnet (12) is attracted by the electromagnet (20) and the arm (10) rotates as a result of this pulling.

With the rotational movement provided by the interaction of the electromagnet (20) and the magnet (12), the need for unlocking by contacting the wheels (T) in the prior art shown in Figure 5 is eliminated.

Referring to Figure 4; The magnets (12) can also be arranged to form a protrusion in the Z direction on the arms, and the said electromagnet (20) is arranged to hit the magnet (12) when the elevator cabin door (CD) moves while the lock is in the closed position. The impact movement mentioned here provides the cabin door (CD) to be driven to rotate the arm (10) by forcing the cabinet door (CD) when there is no electricity in the system, that is, when the electromagnet (20) is not working.

The impact mentioned here may also be provided by a suitably positioned body other than the electromagnet (20), thus preventing the electromagnet (20) from being damaged by impact.

The protrusion formed by the magnets (12) in the Z direction can also be achieved by connecting the magnets (12) to the magnet shafts (121 ) connected to the arm (10). The magnets (12) can be connected to the magnet shafts (121 ) in a rotatable manner, and hitting movements in this way enable the arm (10) to rotate more easily.

This system includes an elevator cabin (C) that is adjusted to move between floors in the elevator shaft (S) and the elevator movement system that will provide the relevant movement, and the hall door (FID) lock system described in the above detailed description and claims at the hall entrances.

The mentioned control unit unlocks the hall door (FID) by activating the electromagnet (20) when the cabin (C) stops on a floor, and by driving the magnets (12) and therefore the arm (10). In addition, the cabin (C) prevents the electromagnet (20) from working while passing through a floor where it will not stop, preventing the transition from locked position to open position in unwanted situations. The protection scope of the invention is indicated in the appended claims and cannot be restricted to those described for the purpose of illustration in this detailed description. It is apparent that person skilled in the art can reveal similar embodiment in light of what is described above without departing the main subject of the invention.

Claims

1. An elevator hall door (HD) locking system for locking elevator hall doors (HD) characterized by, an arm (10) is configured to be moving with the hall door (HD) and is rotatably connected to an arm shaft (11 ); at least one magnet (12) connected to the arm (10) such that positioned on the right and/or left of the arm shaft (11) ;

A lock (14) and a lock striker (13), one of which is arranged at one end of the said arm (10) and the other is arranged at a fixed point and preventing the opening of the hall door (HD) by connecting to each other in the lock position,; an electromagnet (20) arranged to move together with the elevator cabin (C) and when the elevator cabin (C) reaches the floor where the hall door (HD) is located, such that enables the said lock (14) and the lock striker (13) to be separated from each other by interacting with the said magnet (12) and rotating the said arm (10) on the axis of the arm shaft (11 ),

2. A hall door (HD) lock system according to claim 1 , characterized by; comprises magnets (12) connected to the arm (10) on the right and left of the arm shaft (11 ).

3. A hall door (HD) lock system according to claim 1 or 2, characterized by; the magnets (12) are arranged in the form of wheels.

4. A hall door (HD) lock system according to claim 3, characterized by; the connection of the magnets (12) to the arm (10) in a rotatable manner.

5. A hall door (HD) lock system according to any of the claims 2-4, characterized by fftaf; the electromagnet (20) is positioned in such a way that it stays between two magnets (20) while the hall door (HD) is in the locked position.

6. A hall door (HD) lock system complying with any of the above claims characterized by fftaf; the arrangement of the mentioned magnets (12) with off axis relative to each other.

7. A hall door (HD) lock system according to claim 1, characterized by; comprises a magnet (12) connected to the arm (10) on the right or left of the arm shaft (11 ).

8. A hall door (HD) lock system according to claim 7, characterized by; the electromagnet (20) is arranged to push the magnet (12).

9. A hall door (HD) lock system according to claim 7, characterized by; the electromagnet (20) is arranged to pull the magnet (12).

10. A hall door (HD) lock system according to claim 1 , characterized by; the gravity center of the arm (10) is arranged to that the lock (14) and the lock striker (13) remain on the locked position when there is no force on the arm (10).

11. A hall door (HD) lock system according to claim 10, characterized by; the gravity center of the arm is provided on the other side of the arm shaft (11) with respect to the lock (14).

12. A hall door (HD) lock system according to claim 10, characterized by; the gravity center of the arm (10) is provided on the arm shaft (11 ).

13. A hall door (HD) lock system according to with claim 1 , characterized by; the hall door (HD) is arranged to open to the right or left.

14. A hall door (HD) lock system according to claim 1 , characterized by; the hall door (HD) is arranged to be closed and opened in the middle.

15. A hall door (HD) lock system according to claim 14, characterized by; the arm (10) is positioned on a hall door (HD) and said lock (14) or lock striker (13) on the other hall door (HD).

16. A hall door (HD) lock system according to claim 1 , characterized by; the arm shaft (11 ) is arranged in such a way that it extends perpendicular to the hall doors (HD).

17. A hall door (HD) lock system according to claim 1 , characterized by; the lock (14) is connected to a fixed point and the lock striker (13) to the arm (10).

18.. A hall door (HD) lock system according to claim 1 , characterized by; the elevator (E) comprises an object connected to the cabin door (CD), as so hitting the magnet (12) when the elevator cabin door (CD) moves while the lock is in the closed position.

19. A hall door (HD) lock system according to claim 1 , characterized by; the electromagnet (20) is connected to the cabin door (CD) such that it hits the magnet (12) when the elevator cabin door (CD) moves when the lock is in the closed position.

20. An elevator car (C) arranged to move between floors in the elevator shaft (SU) and an elevator movement system to provide the relevant movement; It is an elevator installation that includes a hall door (HD) and hall door (HD) lock system in hall entrances according to any of the preceding claims.

21. An elevator (E) installation according to claim 20, characterized by; comprises a control unit which separates the lock (14) and the lock striker (13) from each other by activating the electromagnet (20) when the elevator cabin (C) stops at one of the hall entrances, and enables the lever (10) to remain in the lock position by turn off the electromagnet (20) when the elevator cabin (C) passes without stopping at the hall entrances.