WO2021211071A1

WO2021211071A1 - Magnetic push-to-open door actuator

Info

Publication number: WO2021211071A1
Application number: PCT/TR2020/050701
Authority: WO
Inventors: Ersin ODABAS
Original assignee: Master Teknik Tasarim Makina Sanayi Ve Ticaret Ltd. Sti
Priority date: 2020-04-16
Filing date: 2020-08-11
Publication date: 2021-10-21

Abstract

The invention is the working principle of push-to-open actuator (10), which ensures that the doors that can be opened and closed automatically or manually are locked and opened, and is characterized in that including these process steps: − Conversion of 220V alternating current from the mains to 12-48V direct current with AC-DC Converter, − If 12-48V low voltage is available, the voltage will be given directly to the microprocessor and power circuit (80), − Transmission of the converted voltage to the microprocessor and power circuit (80), − Using the microprocessor and power circuit (80) for at least 1 to 2 seconds to give the voltage to the sleeve coil, and apply force to remove the door latch from the door latch hole (24), − Creating a magnetic field around the sleeve coil (90) that acts as the coil (53) and the sleeve (50) and applying force to the magnet to push the door latch, − Keeping the door latch pushed for at least 1 to 2 seconds, − After the time specified as at least 1 to 2 seconds has passed, the voltage is cut off.

Description

Magnetic Push-to-Open Door Actuator

Technical Field

The invention relates to locking mechanisms that provide locking and opening of the doors, which are used as wall or partition spaces that are passed when entering or exiting a place and can be opened and closed automatically or manually.

Prior Art

Cylinder locks are generally used in the doors in the prior art. There is a latch connected to the cylindrical lockset. The latch moves back and forward by turning the handle or key of the door. The forward position of latch is provided by pushing force of the spring. The latch prevents the spontaneous opening of the door by entering the latch hole located on the doorjamb.

In the US patent document coded US6282931 in the prior art, electrically operated actuator and method are mentioned. Said method is provided for retrofitting an existing dead-bolt assembly with an electrically operated actuator. The electrically operated actuator automatically operates the dead-bolt assembly while preserving manual operation of the lock. The actuator assembly has rotating means for rotation of the drive bar, which in turn extends or retracts the bolt of the lock. The rotating means may be a lever attached to the drive bar that is pivotable about the axis of rotation of the drive bar. The actuator assembly has driving means that forces the rotating means to rotate. The driving means is responsive to an electrical signal, which, for example, may be initiated from a remote-controlled transmitter. The driving means may include a motor for rotating a rod that in turn operates an assembly that rotates or drives the rotating means. In the said patent document in terms of locking principle, the mechanism in the existing mechanical locks is used. Only the rotating is done with the help of an actuator. In the document, it is mentioned that the latch on the door is moved back and forth with the help of an actuator located on the door. In the said set, an actuator with gear assemblies and an electric motor is used.

Purpose of the Invention

The object of the invention is to obtain a magnetic push-to-open actuator that enables the door latch to be released by pushing forward.

Another object of the invention is to obtain a push-to-open actuator that can work in all kinds of indoor and outdoor areas, hot, cold, and wet environments.

Another object of the invention is to obtain a safe push-to-open actuator preventing the doors from uncontrolled openness.

Another object of the invention is to obtain a push-to-open actuator that can be remote-controlled by wires or wireless.

Another object of the invention is to obtain a long-lasting magnetic push-to-open actuator that can operate without using any electronic motor.

Another object of the invention is to obtain a push-to-open actuator that is compatible with all kinds of doors and can be retrofitted.

The set developed to realize the said objectives include a faceplate (20) a capsule (30), a magnet (40), a sleeve (50), a protective sheath (60), an AC-DC converter (70), a microprocessor and power circuit (80) and a sleeve coil (90). In addition, it includes a faceplate fixing hole (21), a faceplate -sleeve fixing screw hole (22), a sleeve fixing screw (23), a door latch hole (24) and a sliding slot (25) on the said faceplate (20). Description of Figures

The figures are presented in the appendix.

Figure- 1 is an exploded perspective view of the magnetic push-to-open actuator. Figure-2 is the front perspective view of the magnetic push-to-open actuator. Figure-3 is the front view of the magnetic push-to-open actuator.

Figure-4 is the side view of the magnetic push-to-open actuator.

Figure-5 is the top view of the magnetic push-to-open actuator.

Figure-6 is the side cross-sectional view of the moment when the capsule in the magnetic push-to-open actuator is pulled.

Figure-7 is the side cross-sectional view of the moment when the capsule in the magnetic push-to-open actuator is pushed.

Figure-8 is the working principle diagram of the electronic circuit used in push-to- open actuator.

The main parts expressed in the figures are given below as numbers and names.

(10) Magnetic push-to-open actuator

(20) Faceplate

(21) Faceplate fixing hole

(22) Faceplate- sleeve fixing screw hole

(23) Sleeve fixing screw

(24) Door latch hole

(25) Sliding slot (30) Capsule

(31) Ledge (40) Magnet

(50) Sleeve

(51) Sleeve fixing screw hole

(52) Movement gap (53) Coil (special winding)

(60) Protective sheath (70) AC-DC converter (80) Microprocessor and Power circuit (90) Sleeve coil

Detailed Description of the Invention

Magnetic push-to-open actuator (10), which is the subject of the invention, includes a faceplate (20), a capsule (30), a magnet (40), a sleeve (50), a protective sheath (60), an AC-DC Converter (70), a microprocessor and power circuit (80), and a sleeve coil (90). In addition, it has a faceplate fixing hole (21), a faceplate-sleeve fixing screw hole (22), a sleeve fixing screw (23), a door latch hole (24) and a sliding slot (25) on the said faceplate (20).

There is a latch on all types of door locks with or without cylinder. Door latch is the part that holds the door while the bolt is back. Said door latch has connection to all parts on the locking mechanism. Via the bearing and cylinder connection, the door is opened by pulling back the latch with its spring, if we either turn the key from the cylinder or turn the handle.

With the magnetic push-to-open actuator (10), which is the subject of the invention, the door latch is pushed forward, and the door is opened. Said pushing process is made with the capsule (30) located in the push-to-open actuator (10). The capsule (30) moves together with the magnet (40) via the metal part in it. In alternative embodiments of the invention, the capsule (30) can be fixed to the magnet (40) by any fixing method such as bonding and screwing. The magnet (40) in the set, which is the subject of the invention, is located in the sleeve (50). The sleeve (50) is the part that creates the magnetic field with the windings of the coil (special winding) (53). When electric current is given to the windings of the coil (53), that is the sleeve (50), a magnetic field is created by the winded wires. The magnetic field affects the magnet (40) and pushes the magnet (40) forward. The thrust force is directly proportional to the number of windings around the sleeve. The number of windings can vary depending on the door to be used.

On the capsule (30), there is a ledge (31) preventing the said capsule (30) from leaving the door latch hole (24) located on the faceplate (20). The movement of the expressed capsule (30) is limited by the ledges (31) on each side of the capsule (30), and the door latch is pushed at the same level. Inside the sleeve (50), there is a movement gap (52) that provides the said capsule (30) to move back and forward. The dimensions of the movement gap (52) may vary depending on the extent of the door latch entering the door latch hole (24).

The opening of the door is provided by pushing the door latch, which has entered the door latch hole (24), through the magnet (40) and the capsule (30) pushed by the magnetic field created by giving electricity the windings of the sleeve (50). In order to ensure that the door latch remains pushed forward for a certain period of time, voltage is continued to be given to the sleeve (50) for a certain period of time. Said time is determined by the microprocessor and power circuit (80). When the door, whose latch is pushed, is not opened within the specified time, the voltage is cut with the microprocessor and power circuit (80). The door latch on the door enters the door latch hole (24) and provides re-locking. The insertion of the door latch into the door latch hole (24) is provided by the spring in said door latch.

When the door opened by the user within the specified time is closed back, a thrust force is applied to the capsule (30) via to the spring on the door latch and the capsule (30) moves easily inside. In this way, the door is re-locked. Automatic push-to-open set, which is subject to the invention, operates with direct current. The 220V alternating current received from the mains is converted to 12- 48V direct current with AC-DC Converter (70) to ensure a healthy operation of the system. When conversion is not required, i.e. in environments where 12-48V direct current is available, the system can operate in a healthy way by transmitting the voltage directly to the microprocessor and power circuit (80) without the need for AC-DC Converter (70). In alternative embodiments of the invention, the input and output voltage values can vary depending on the mains and door to which the set is connected.

In an alternative embodiment of the invention, if it is not desired to continue the thrust for a certain period of time, the voltage from the AC-DC Converter (70) can also be given directly to the sleeve coil (90) without the need for a microprocessor and power circuit (80). With the alternative embodiment, the thrust force continues until a button or the relevant button of a remote control is pressed.

The working principle of the magnetic push-to-open actuator (10), which is the subject of the invention, includes process steps as follows:

Conversion of 220V alternating current from mains to 12-48V direct current with AC-DC Converter (70),

If low voltage of 12-48V is available, the voltage will be fed directly to the microprocessor and power circuit (80),

Transmission of the converted voltage to the microprocessor and power circuit (80),

Using the microprocessor and power circuit (80) for at least 1 to 2 seconds to give the voltage to the sleeve coil (90), and apply force to remove the door latch from the door latch hole (24),

Creating a magnetic field around the sleeve coil (90) and the sleeve (50) and applying force to the magnet to push the door latch,

Keeping the door latch pushed for at least 1 to 2 seconds,

After the time specified as at least 1 to 2 seconds has elapsed, cutting off the voltage. After the above-mentioned process steps are completed, the voltage is cut off and if the door is opened, the door latch on the door is re-locked by pushing the capsule (30) and entering the door latch hole (24). In an alternative embodiment of the invention, the capsule (30) can be re -pulled by applying a voltage in the opposite direction to the sleeve coil (90) rather than pushing through the door latch.

The magnet (40) included in the magnetic push-to-open actuator (10) set, which is the subject of the invention; is positioned in the sleeve (50). In the outer surface of the sleeve (50), there is sleeve coil (90) that acts as the coil (53) to create a magnetic field. Since the sleeve coil (90) surrounds the sleeve (50) all around, a magnetic field is formed in the middle of the area within the said sleeve (50). In this way, the friction, which may occur while the magnet (40) is moving forward with the magnetic field, is minimized. Thus, problems such as abrasion, deformation and heating that may arise from friction on the magnet (40) are minimized.

After the magnet (40) and the capsule (30) are combined, they are placed in the sleeve (50). After said placement process is completed, the sleeve (50) is fixed on said faceplate (20) by using the sleeve fixing screw (23) on the faceplate (20).

After the fixing process is completed, a protective sheath (60) is put on the sleeve (50). A waterproof acrylic coating is made on the protective sheath (60). In this way, the magnetic push-to-open actuator (10), which is subject to the invention, can be used in outdoor environments that may be exposed to climatic events such as rain, snow, etc. and in even under water. After connecting the sleeve (50) with the faceplate (20) and the protective sheath (60) with the sleeve (50), the entire set is fixed to the doorjamb by screw through the fixing hole (21). The magnetic push- to-open actuator (10), which is the subject of the invention, can be used as a final product together with the faceplate (20) or it can be attached to the existing faceplates on the doorjambs.

Claims

C L A I M S

1. The invention is related to magnetic push-to-open actuator that provides automatic or manual opening and closing of the doors and is characterized in that; it comprises

- a capsule (30), which is fixed to the magnet (40) by any fixing method such as gluing and screwing and / or with the thrust force of the magnet and which pushes the door latch, which is the part that holds the door while the slider is back, thus allowing the door to open.

- a magnet (40) that can move back and forward via the magnetic field created by the voltage given to the sleeve coil (90), which is composed of at least one part positioned inside the sleeve (50),

- a sleeve (50) that has a sleeve coil (90), which acts as a coil (53) that converts the voltage it receives into a magnetic field, and includes a movement gap (52) that enables the capsule (30) to move back and forward.

2. The capsule (30) mentioned in Claim 1 is characterized in that; including a ledge (31), which is located on at least one side of said capsule (30) and prevents the door latch from coming out of the door latch hole (24), thereby limiting the movement of said capsule (30) and pushing the door latch at the same level.

3. The sleeve (52) mentioned in Claim 1 is characterized in that; including a movement gap (52) that enables the magnet (40) positioned therein and thus the capsule (30) to move back and forward.

4. Magnetic push-to-open actuator mentioned in claim 1 is characterized in that; including a microprocessor and power circuit (80) that provides the door to be open by ensuring the door latch is kept pushed for at least 1 second.

5. The magnetic push-to-open actuator mentioned in Claim 1 is characterized in that; including an AC-DC Converter (70), which enables the alternating current received over the electrical mains to be converted to 12-48V direct current by processing.

6. The magnetic push-to-open actuator mentioned in Claim 1 is characterized in that; including a protective sheath (60) that allows it to be used outdoors, even under water, which may be exposed to climatic events, such as rain, snow, etc.

7. The magnetic push-to-open actuator mentioned in Claim 1 is characterized in that; including a faceplate (20), which provides the smooth operation of the set by ensuring the fixation of the parts, the capsule (30), the magnet (40) and the sleeve (50).

8. The faceplate (20) mentioned in claim 7 is characterized in that; including faceplate- sleeve fixing screw holes (22).

9. The faceplate (20) mentioned in claim 7 is characterized in that; including the faceplate fixing holes (21) for securing the faceplate to the doorjamb.

10. The faceplate (20) mentioned in claim 7 is characterized in that; including a door latch hole (24) that prevents the door from opening by holding the door while the slider is behind.

11. The invention is the working principle of push-to-open actuator (10), which ensures that the doors that can be opened and closed automatically or manually are locked and opened, and is characterized in that; including these process steps: - Conversion of 220V alternating current from the mains to 12-48V direct current with AC-DC Converter,

- If 12-48V low voltage is available, the voltage will be given directly to the microprocessor and power circuit (80),

- Transmission of the converted voltage to the microprocessor and power circuit (80),

- Using the microprocessor and power circuit (80) for at least 1 to 2 seconds to give the voltage to the sleeve coil, and apply force to remove the door latch from the door latch hole (24),

- Creating a magnetic field around the sleeve coil (90) that acts as the coil (53) and the sleeve (50) and applying force to the magnet to push the door latch,

- Keeping the door latch pushed for at least 1 to 2 seconds,

- After the time specified as at least 1 to 2 seconds has passed, the voltage is cut off.