KR102546251B1 - Finger guard device for hinged door - Google Patents

Abstract

In accordance with an embodiment of the present invention, the device for preventing hand trapping for a casement door is a casement door including a door frame and a door leaf, one side of which is coupled via a hinge, wherein the door frame or the door leaf a jamming prevention unit that is installed on the door and extends between the door and the door frame when the door is opened to limit the movement of the door; and a switch installed adjacent to the handle of the door to transmit an operation signal to the jamming prevention unit so as to release the movement restriction of the door.

Description

Finger-trap prevention device for hinged doors {FINGER GUARD DEVICE FOR HINGED DOOR}

The present invention relates to a connecting device used for a casement door including a door leaf and a door frame, and more particularly, to a casement door capable of preventing a safety accident from occurring due to a body part, such as a finger, being caught between the door leaf and the door frame when opening and closing the door. It relates to a device for preventing hand pinching.

In general, a door is one of structures made to allow people or objects to enter and exit the entrance of a building, and is composed of a door frame, a door leaf, and a handle, and is classified as a window and a door together with a window.

These doors are classified into folding doors, rotary doors, sliding doors and casement doors according to opening and closing methods.

Among them, a hinged door is one of the most frequently used opening and closing methods for visiting apartments, etc., and one side of the door is hinged to the door frame, so that the door is opened and closed while rotating around the hinge.

At this time, a gap is generated between the door leaf and the door frame depending on the opening angle of the door leaf, and if the door leaf is closed while a finger is inserted into this gap, serious injuries such as bruises, fractures, and even amputation may occur to the fingers. And, especially in young children, the risk is even greater.

In order to solve this problem, various types of accessories for hinged doors have been developed to prevent parts of the body from being caught in the gap between the door leaf and the door frame. It had problems such as requiring complicated processes such as inserting a mechanical device into the inside of the door.

In addition, when the hand-trap prevention device needs to be manually operated, there is an inconvenience in that the door must be opened and closed after manually releasing the locking device every time the door is opened and closed.

Accordingly, there is a demand for a new type of hand-trap prevention device that can prevent the door from being closed by automatically operating when the door is opened and closed, and can easily release it to improve convenience of use.

The matters described as the background art above are only for improving understanding of the background of the present invention, and should not be taken as an admission that they correspond to prior art already known to those skilled in the art.

KR 10-1510659 B1 (2015.04.03.)

The present invention has been made to solve the above problems, and a hand jamming prevention device for a casement door that can prevent a safety accident caused by a part of the body being caught through a gap between the door leaf and the door frame of the casement door. to provide.

In addition, while installing a stopper that automatically prevents the closing of the door, it is to provide a button-type hand jamming prevention device having a simple structure that can release it with one touch.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description of the present invention.

According to an embodiment of the present invention, an anti-hand gripping device for a casement door is a casement door including a door frame and a door leaf, one side of which is coupled via a hinge, installed on the door frame or the door leaf, and the door leaf open (OPEN) a jamming prevention unit that extends between the door leaf and the door frame to limit the movement of the door leaf when the time is right; and a switch installed adjacent to the handle of the door and transmitting an operation signal to the jamming prevention unit so as to release the movement restriction of the door.

The jamming prevention unit may include a housing installed on the upper portion of the door frame and having a locking hole opened toward an inner circumferential surface of the door frame; and a jamming prevention bar installed in the locking hole and extended between the door leaf and the door frame or drawn into the housing.

Preferably, the locking hole is formed so as to be inclined upward from one open side to the other side so that the jamming prevention bar extends to the outside of the housing while descending through gravity.

The jamming prevention unit may further include a release unit installed on the other side of the locking hole and receiving an operation signal from the switch to move the jamming prevention bar to the other side of the locking hole.

The jamming prevention unit further includes a guide rail installed on a bottom surface of the locking hole to guide movement of the jamming prevention bar, and the jamming prevention bar includes a plurality of wheels rotating along the guide rail. It is desirable to do

Preferably, the jamming prevention bar further includes a shock absorbing cover made of an elastic material surrounding an outer circumferential surface of one side.

Preferably, the jamming prevention bar is made of a magnetic material, and the release unit receives an operation signal from the switch to generate magnetic force to apply a force to the jamming prevention bar.

The jamming prevention bar is provided to descend by gravity and rise by rotation of the motor, and the release unit receives an operation signal from the switch to rotate the motor to move the jamming prevention bar to the other side of the lock hole. desirable.

The jamming prevention unit may include a sensor for detecting whether a foreign substance is present between the door leaf and the door frame; and a speaker generating a warning sound when the switch is operated when a foreign substance is detected by the sensor.

At this time, when a foreign substance is detected by the sensor, the release unit does not operate, characterized in that, hand jamming prevention device for casement door.

In the present invention, it is preferable that a plurality of sensors are installed vertically on the inner circumferential surface of the door frame or on the side surface of the door leaf.

It is preferable to further include an auxiliary stopper that is installed at the lower end of the door and extends to contact the floor to limit the movement of the door, or is accommodated inside the door and allows the movement of the door.

Preferably, the auxiliary stopper extends from the door leaf to limit the movement of the door leaf when an operation signal is transmitted from the switch when a foreign substance is detected by the sensor.

The auxiliary stopper is made of a magnetic material, is installed on the door, maintains the auxiliary stopper accommodated inside the door, and when an operation signal is transmitted from the switch when a foreign substance is detected by the sensor, the magnetic force It is preferable to further include; a stopper operating unit that releases and allows the auxiliary stopper to descend.

The auxiliary stopper is provided to be operated by rotation of the motor, is installed on the door, maintains the auxiliary stopper accommodated inside the door, and transmits an operation signal from the switch when a foreign substance is detected by the sensor If it is, it is preferable to further include; a stopper operating unit for lowering the auxiliary stopper by rotating the motor.

The door frame includes a door jamb fixed to a wall and forming a side wall, and a doorstop protruding inward from a central portion of the door jamb, and the locking hole is configured to face an inner surface of the door jamb from a side surface of the door stop of the door frame. formed, when the jamming prevention bar is extended, one end of the jamming prevention bar is preferably adjacent to or in contact with the inner surface of the door jamb.

According to an embodiment of the present invention, it is possible to minimize safety accidents by wrapping the front and rear surfaces of the connection part between the door leaf and the door frame to prevent a part of the user's body, such as a user's finger, from being caught.

In addition, when the door is opened, the stopper automatically protrudes to prevent the door from being closed to prevent hand jamming, and the stopper can be released by pressing the button-type switch installed adjacent to the handle, making it easy to close the door if necessary. There is one effect.

1 is a perspective view showing the installation of a hand-trap prevention device for a casement door according to an embodiment of the present invention,
2 is a plan cross-sectional view when the door is in a closed state;
3 is a plan cross-sectional view when the door is open;
4 is a plan cross-sectional view showing a jammed state when the switch is not operated when the door is closed from the open state;
Figure 5 is a cross-sectional view showing the internal configuration of the jamming prevention unit of the hand jamming prevention device for casement door according to an embodiment of the present invention,
6 is a view showing a state in which the auxiliary stopper is lowered when the door is in an open state.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited or limited by the embodiments. For reference, in the present description, the same numbers refer to substantially the same elements, and descriptions may be made by citing contents described in other drawings under these rules, and contents determined to be obvious to those skilled in the art or repeated contents may be omitted.

1 is a perspective view showing the installation of a hand-trap prevention device for a casement door according to an embodiment of the present invention.

As shown in FIG. 1, the device for preventing hand trapping for a casement door according to the present invention is installed on the door frame 10 or the door leaf 20, and when the door leaf 20 is opened, the door frame 10 and the door leaf 20 ) The jamming prevention unit 100 extending into the space between the door 20 and limiting the closing of the door 20, and the jamming prevention unit 100 installed adjacent to the handle 21 of the door 20 and operating It is configured to include a switch 200 for transmitting an operation signal to.

2 is a plan sectional view when the door is in a closed state, FIG. 3 is a plan sectional view when the door is open, and FIG. 4 is a plan sectional view when the door is closed in an open state when the switch is not operated. This is a cross-sectional plan view showing the jammed case.

2 to 4, in the present invention, the door frame 10 and the door leaf 20 are rotatably connected via a hinge 30, which is a common hinge such as a butterfly hinge and an easy hinge. It may have a hinge structure, and in addition to this, various types of hinges may be selectively applied.

The jamming prevention unit 100 according to an embodiment of the present invention is stretched between the door frame 10 and the door leaf 20 to prevent safety accidents such as hand pinching, and various types of door frame 10 or door leaf 20 can be installed in place.

In the present invention, the jamming prevention unit 100 preferably includes a housing 110 and a jamming prevention bar. ) Is accommodated in the inner space or is extended to protrude from the housing 110 and enters the space between the door frame 10 and the door leaf 20.

More preferably, in the present invention, the jamming prevention unit 100 is preferably installed to replace a portion of the upper end of the door frame 10.

For example, the housing 110 may be installed in the corresponding part by forming a concave groove-shaped mounting groove 11 in the door stop 13 protruding from the door jamb 12 of the door frame 10, and at this time, the housing 110 may be installed in the corresponding part. As for the groove, a corresponding part of the existing door frame 10 may be cut or the door frame 10 manufactured in a state in which a groove is processed in the corresponding part may be used.

Therefore, the housing 110 is provided to have the same appearance as the shape of the door frame 10, and when the jamming prevention bar 120 is accommodated inside the housing 110, the portion except for the lock hole 111 is the door frame ( 10), there is an effect of improving aesthetics because it does not show a sense of difference from the door frame 10 even when the jamming prevention unit 100 is installed.

On the other hand, the housing 110 has a locking hole 111 in which the jamming prevention bar 120 is accommodated therein, and the locking hole 111 is formed as an inclined surface that increases in height from one open side to the other side of the interior. As such, when the door 20 is opened, the jamming prevention bar 120 may protrude into the space between the door frame 10 and the door 20 while descending due to gravity.

One side opening of the lock hole 111 is formed on the side of the door stop 13 in the direction of the door 20, and the other side is provided in a closed state inside the housing 110, and the jamming prevention bar 120 is provided through the open side. ) may protrude into the space between the door frame 10 and the door leaf 20.

In addition, the jamming prevention bar 120 may be formed of a material that is not deformed or damaged even when a collision occurs while the door 20 is closed, for example, a steel material. In addition, it is more preferable that a shock absorbing cover 121 is installed at one end of the jamming prevention bar 120 to prevent damage to the door 20 upon collision with the door 20 .

The shock absorbing cover 121 is formed of, for example, rubber, silicone urethane, pvc cushion, sponge, etc., and can absorb shock when a collision occurs. It may be installed to wrap around, or it may be installed only in a part where a collision with the door 20 is expected.

At this time, the jamming prevention bar 120 does not protrude vertically from the doorstop 13, but protrudes obliquely from one side of the doorstop 13 toward the inner surface of the door jamb 12 on which the hinge 30 is installed. more preferable

Because, when the door 20 is closed with a strong external force, if the jamming prevention bar 120 protrudes vertically to the side of the doorstop 13, the impact applied to the jamming prevention bar 120 may damage the housing 110 This is because it is transmitted intensively to the inlet portion of the locking hole 111 of the ), and a problem in which the housing 110 is damaged may occur.

On the other hand, when the jamming prevention bar 120 protrudes obliquely, the impact generated by the collision with the door 20 is transmitted to the housing 110 through the entire jamming prevention bar 120, and the impact amount is distributed. Bar, Damage to the housing 110 may be prevented.

Therefore, it is preferable that the locking hole of the housing 110 is formed diagonally so as to extend thereto so that the jamming prevention bar 120 can protrude diagonally as described above.

In other words, the locking hole 111 is formed to be inclined in the direction of gravity and at the same time is also formed to be inclined in the direction connecting the door stop 13 and the door jamb 12 in an oblique line.

At this time, when the jamming prevention bar 120 is extended, it is preferable that one end of the jamming prevention bar 120 is adjacent to or in contact with the inner surface of the door jamb 12 .

When the jamming prevention bar 120 is installed so that its end comes into contact with the inner surface of the door jamb 12 when it protrudes, the impact caused by the door 20 is distributed to the housing 110 and the door jamb 12 so that the door frame 10 And damage to the housing 110 can be prevented. In this case, it would be desirable to install the shock absorbing cover 121 so as to surround the entire one end of the jamming prevention bar 120 .

In this way, when the jamming prevention bar 120 protrudes and is installed so as to come into contact with the inner surface of the door jamb 12, the jamming prevention bar 120 is separated from the lock hole 111 because the door jamb 12 supports the jamming prevention bar 120. There is an effect that can prevent the separation of the prevention bar 120.

When the jamming prevention bar 120 protrudes, when its end is spaced apart from the inner surface of the door jamb 12 and installed adjacent to it, the jamming prevention bar 120 and the door 20 are connected to the shock absorbing cover 121. It can be partially installed only on the contact area. Also, in this case, a separate configuration for preventing the jamming prevention bar 120 from being separated from the locking hole 111 may be further included.

On the other hand, the jamming prevention unit receives the operation signal from the switch 200 and moves the jamming prevention bar 120 to the other side of the locking hole 111 to accommodate the release part 130 to be accommodated in the inner space of the housing 110 more includes

At this time, the release unit 130 is an electromagnet installed at the other end of the locking hole 111, and the jamming prevention bar 120 is preferably formed of a magnetic material.

When the release unit 130 is operated, power is applied to the electromagnet so that a bar by magnetic force acts on the jamming prevention bar 120, and the jamming prevention bar 120 reverses gravity and locks the lock hole 111 of the housing 110. can be accommodated internally. After the jamming prevention bar 120 is accommodated into the housing 110 by the operation of the release unit 130, the door 20 can be moved to a closed state.

As another embodiment of the present invention, the release unit 130 may be provided as a driving unit including a motor (not shown), and the jamming prevention bar 120 may be configured to move up and down by the operation of the motor.

For example, by fixing and installing a motor inside the housing 110, configuring the pinion gear to rotate by the motor, and processing the surface shape of the jamming prevention bar 120 into a rack gear shape, the motor rotates. Accordingly, the jamming prevention bar 120 can be lifted.

Alternatively, a rotating reel is installed in the motor, and a wire is connected between the rotating reel and the jamming prevention bar 120 so that the jamming prevention bar 120 rises while the wire is wound around the rotating reel by the rotation of the motor. will be.

More specifically, when the switch 200 is operated, the release unit 130 may be operated only while the switch 200 is maintained, that is, while the switch is pressed, and the switch 200 is operated once. If so, the release unit 130 may be set to operate for a predetermined period of time. This may be selectively applied according to the environment of the place where the hand jamming prevention device according to the present invention is installed.

Figure 5 is a cross-sectional view showing the internal configuration of the jamming prevention unit of the hand jamming prevention device for casement door according to an embodiment of the present invention.

As shown in FIG. 5, looking at the internal structure of the jamming prevention unit 100 in more detail, along the longitudinal direction of the locking hole 111, a guide rail guides the movement of the jamming prevention bar 120 at the lower end thereof. 140 is installed, and a plurality of wheels 122 running along the guide rail 140 are installed on the lower surface of the jamming prevention bar 120.

The guide rail 140 not only guides the moving direction of the jamming prevention bar 120, but also minimizes friction between the jamming prevention bar 120 and the locking hole 111, so that the door 20 is not jammed when it is opened. It assists in more smoothly performing an operation of lowering the prevention bar 120 and an operation of raising the jamming prevention bar 120 when power is applied to the release unit 130 .

At this time, the shape of the wheel 122 of the guide rail 140 and the jamming prevention bar 120 is not particularly limited, but, for example, the guide rail 140 and the wheel 122 are formed to have irregularities that engage with each other to get stuck. It is possible to prevent the prevention bar 120 from being separated from the guide rail 140 .

Preferably, the length of the guide rail 140 is formed shorter than the length of the locking hole 111, and at least a portion of the jamming prevention bar 120 is provided to maintain a coupled state with the guide rail 140.

Through this, when the jamming prevention bar 120 descends and protrudes to the outside of the housing 110, it is possible to prevent the jamming prevention bar 120 from completely separating from the locking hole 111 and coming out.

This coupling structure can be used, for example, by forming a protrusion that is caught on the other end of the jamming prevention bar 120 and the lower end of the guide rail 140 to prevent the jamming prevention bar 120 from descending further. You will be able to.

On the other hand, as shown in FIG. 1, the jamming prevention unit 100 includes a sensor 400 that detects whether or not there is a foreign substance between the door leaf 20 and the door frame 10 and a speaker 150 that can indicate a warning by sound. It is preferable to further include.

A plurality of sensors 400 are installed side by side vertically along the side of the doorstop 13, and when a foreign object such as a finger is detected in at least one of them, the release unit 130 is not activated even if the switch 200 is operated. Instead of operating, the speaker 150 generates a warning sound to notify the user of the presence of foreign substances when the door 20 is closed, thereby preventing the user's safety accident.

The speaker 150 may generate various types of alarm sounds, for example, "Check the door crack", "Your hand is caught", and "Danger". It may be configured to warn of danger with a voice such as.

Then, when the switch 200 is operated again after the foreign matter such as a finger detected by the sensor 400 is removed, the release unit 130 operates normally and the jamming prevention bar 120 is accommodated in the housing 110. The door 20 can be closed.

The sensor 400 may use various types of sensors capable of detecting the presence of a foreign substance at the corresponding location, for example, one or a plurality of types of sensors such as an infrared sensor, a temperature sensor, an ultrasonic sensor, and a motion sensor may be used. .

6 is a view showing a state in which the auxiliary stopper is lowered when the door is in an open state. As shown in FIG. 6, the device for preventing hand trapping for a casement door according to an embodiment of the present invention further includes an auxiliary stopper 300 installed on the door 20 to limit the movement of the door 20 it is desirable

The auxiliary stopper 300 has a structure that plays a similar role to a door stopper generally installed on a door of a front door. The auxiliary stopper 300 extends from the lower end of the door 20 or is lifted to be accommodated inside the door 20, and when extended downward, restricts the movement of the door 20 while touching the bottom surface, and is accommodated upward. In this case, the door 20 may be allowed to move.

The auxiliary stopper 300 is basically made of a magnetic material, and it is preferable to use a cover made of rubber, silicone, or the like to maximize friction at an end thereof, that is, a portion in contact with the bottom surface.

The reason why the auxiliary stopper 300 is made of a magnetic material is to limit the movement of the door 20 with a warning when the sensor 400 detects a foreign substance when the switch 200 is operated.

That is, when the switch 200 is operated, the release part 130 of the previously described jamming prevention unit 100 operates to accommodate the jamming prevention bar 120 into the housing 110 so that the door 20 rotates in a closed state. At this time, if a foreign substance such as a finger exists in the space between the door frame 10 and the door 20, the speaker 150 described above generates a warning sound and an auxiliary stopper to stop the door 20 at the same time. (300) will be lowered.

At this time, the stopper operating unit 310 continues to apply magnetic force at normal times so that the auxiliary stopper 300 maintains a state accommodated inside the door 20, as described above, when the sensor 400 detects a foreign substance In this state, when the switch 200 is operated, the magnetic force is released so that the auxiliary stopper 300 falls and serves as an emergency stop device for stopping the rotation of the door 20.

In addition to this, it will be possible to install a separate switch that operates the auxiliary stopper 300 and, if necessary, lower the auxiliary stopper 300 to fix the door 20.

As another embodiment of the present invention, the stopper operating unit 310 may be provided as a driving unit including a motor (not shown), and the auxiliary stopper 300 may be configured to move up and down by operation of the motor.

For example, by fixing and installing a motor inside the door 20, configuring the pinier gear to rotate by the motor, and processing the surface shape of the jamming prevention bar 120 into a rack gear shape, the motor rotates. Accordingly, the jamming prevention bar 120 can be lifted.

As described above, although it has been described with reference to the preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be done.

10: door frame 11: mounting groove
12: doorpost 13: doorstop
20: door 21: handle
30: hinge 100: jamming prevention unit
110: housing 111: lock hole
120: jamming prevention bar 121: shock absorbing cover
122: wheel 130: release unit
140: guide rail 150: speaker
200: switch 300: auxiliary stopper
310: stopper operation part 400: sensor

Claims (15)

In the casement door including a door frame and a door leaf, one side of which is coupled via a hinge,
a jamming prevention unit installed on the door frame or the door leaf and extending between the door leaf and the door frame when the door leaf is opened to limit movement of the door leaf;
A switch installed adjacent to the handle of the door to transmit an operation signal to the jamming prevention unit to release the movement restriction of the door;
The jamming prevention unit,
a housing installed above the door frame and having a locking hole open toward an inner circumferential surface of the door frame; and
An anti-jamming bar installed in the locking hole and extended between the door leaf and the door frame or drawn into the housing,
The locking hole is
Characterized in that it is formed so as to be inclined upward from one open side to the other side, so that the jamming prevention bar is formed to extend out of the housing while descending through gravity.
delete delete The method of claim 1,
The jamming prevention unit,
A release unit installed on the other side of the locking hole and receiving an operation signal from the switch to move the jamming prevention bar to the other side of the locking hole;
The method of claim 4,
The jamming prevention unit,
Further comprising a guide rail installed on the bottom surface of the locking hole to guide the movement of the jamming prevention bar,
The jamming prevention bar,
Equipped with a; a plurality of wheels that rotate along the guide rail; hand jamming prevention device for a casement door.
The method of claim 5,
The jamming prevention bar,
An elastic material shock absorbing cover surrounding one outer circumferential surface; further comprising a hand-trap prevention device for a casement door.
The method of claim 4,
The jamming prevention bar is provided with a magnetic material,
The release part,
Hand jamming prevention device for casement door, characterized in that by receiving an operation signal from the switch to generate a magnetic force to apply a manpower to the jamming prevention bar.
The method of claim 4,
The jamming prevention bar is provided to descend by gravity and rise by rotation of the motor,
The release part,
Hand jamming prevention device for casement door, characterized in that by receiving an operation signal from the switch to rotate the motor to move the jamming prevention bar to the other side of the locking hole.
The method of claim 4,
The jamming prevention unit,
a sensor for detecting whether there is a foreign substance between the door leaf and the door frame; and
Further comprising a speaker generating a warning sound when the switch is operated when a foreign substance is detected by the sensor,
When a foreign substance is detected by the sensor, the release unit does not operate, the hand jamming prevention device for the casement door.
The method of claim 9,
The sensor,
Characterized in that a plurality of pieces are installed vertically on the inner circumferential surface of the door frame, hand jamming prevention device for casement door.
The method of claim 9,
An auxiliary stopper installed at the lower end of the door and extended to contact the floor to limit the movement of the door, or accommodated inside the door to allow the movement of the door; further comprising, preventing hand pinching for casement doors Device.
The method of claim 11,
The auxiliary stopper is characterized in that, when an operation signal is transmitted from the switch when a foreign substance is detected by the sensor, it extends from the door to limit the movement of the door.
The method of claim 12,
The auxiliary stopper is provided with a magnetic material,
It is installed on the door, maintains the auxiliary stopper accommodated inside the door, and releases the magnetic force when an operation signal is transmitted from the switch when a foreign substance is detected by the sensor, allowing the auxiliary stopper to descend A stopper operation unit to do; further comprising a hand jamming prevention device for a casement door.
The method of claim 12,
The auxiliary stopper is provided to be operated by rotation of the motor,
A stopper installed on the door, maintaining the auxiliary stopper accommodated inside the door, and lowering the auxiliary stopper by rotating a motor when an operation signal is transmitted from the switch when a foreign substance is detected by the sensor Operating unit; further comprising a hand jamming prevention device for a casement door.
The method of claim 1,
The doorframe includes a doorpost fixed to a wall and forming a side wall, and a doorstop protruding inward from a central portion of the doorpost,
The locking hole is formed to face the inner surface of the door jamb from the door stop side of the door frame,
When the jamming prevention bar is extended, one end of the jamming prevention bar is adjacent to or in contact with the inner surface of the door jamb, hand jamming prevention device for casement doors.

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