Safety Door Apparatus

Abstract

A door device is provided to respond to acts of residential intrusion targeting women, which enables a potential victim being pursued to relatively easily evade a pursuer and take refuge inside the house when another person forcibly pushes the front door open and follows them in by force. The door device comprises a hinge assembly and first and second doors. The hinge assembly comprises a base frame having a door frame bracket formed on its outer surface for fixing to a door frame and capable of rotating around a rotation axis extending in the vertical direction; a first ring frame formed to rotate around the rotation axis relative to the base frame and having a first bracket extending from its outer surface; and a second ring frame formed to rotate within a predetermined angle range relative to the first ring frame around the rotation axis and having a second bracket extending from its outer surface. The first door is mounted on the first bracket. The second door is mounted on the second bracket. Each of the first door and the second door is configured to rotate around the axis of rotation while the angle between the first door and the second door does not exceed the predetermined angle range.

Description

Technology Field

[0001] The present invention relates to a door device, and more specifically, to an entrance door device that enables a resident to safely evacuate into their home in case of emergency. Background Technology

[0002] As single-person households increase across society and opportunities for women to engage in social activities and live away from home grow, the number of female single-person households is also increasing significantly. Women living alone may be exposed to various risks. In addition to general safety issues, these risks can also be caused by vulnerable housing structures.

[0003] Regarding housing, home invasion, theft, and stalking are cited as the biggest sources of anxiety for women living alone. Unauthorized entry into a residence via a veranda or shared entrance carries a high risk of serving as a precursor to serious crimes, such as sexual offenses or violence. In particular, persistently following someone on their way home or loitering and waiting in front of their home can cause extreme anxiety and fear. Although these acts are punishable under the laws regarding home invasion, stalking, or the Minor Offenses Punishment Act, the low severity of penalties means that the likelihood of criminal punishment is of little help in crime prevention. Therefore, measures are needed to effectively prevent such criminal acts. The problem to be solved

[0004] The inventors of this invention are particularly focusing on residential intrusion among the criminal acts targeting women as described above. If a man the victim does not know follows her on her way home or loiters in front of her front door and then forcibly pushes the door open by force, the victim may be unable to even attempt to evacuate or defend herself due to shock and bewilderment. This problem can be experienced not only by women living alone but also by any woman who has no family members present at home when the situation occurs.

[0005] The present invention aims to solve such problems by providing a safety door device that enables a potential victim being pursued to relatively easily shake off the pursuer and evacuate into the house when another person forcibly pushes the front door open and follows them in by force. means of solving the problem

[0006] According to one aspect of the present invention, a door device comprises a hinge assembly and first and second doors. The hinge assembly comprises a base frame having a door frame bracket formed on its outer surface for fixing to a door frame and capable of rotating around a rotation axis extending in a vertical direction; a first ring frame formed to rotate around the rotation axis with respect to the base frame and having a first bracket extending from its outer surface; and a second ring frame formed to rotate within a predetermined angle range with respect to the first ring frame with respect to the rotation axis and having a second bracket extending from its outer surface. A first door is mounted on the first bracket. A second door is mounted on the second bracket. Each of the first door and the second door is configured to rotate around the rotation axis while the angle between the first door and the second door does not exceed the predetermined angle range.

[0007] The first ring frame is formed with a slit extending in the horizontal direction, and the second ring frame may be provided with a protrusion so as to limit the range of rotation by the slit.

[0008] The first ring frame may each have an upper ring and a lower ring that are in the shape of a ring and connected to the first bracket. In this case, the slit may be formed in at least one of the upper ring and the lower ring, and the protrusion of the second ring frame may be provided in correspondence with the position and number of the slit.

[0009] The second ring frame may be in the shape of a ring and may include a ring body connected to the second bracket. In this case, a part of the second bracket may be inserted into the slit as the protrusion. Effects of the invention

[0010] According to one embodiment of the present invention, a first door and a second door are mounted on a hinge assembly such that their angles relative to each other are limited to within a certain range. When an intruder attempts to pursue a user and enter the house, the user can push the door inside the house between the first and second doors with all their might, thereby overcoming the intruder and easily blocking entry into the house and the entrance. Consequently, since the pursuer can be easily evaded and driven away, the user's safety is greatly enhanced.

[0011] Furthermore, the safety door device of the present invention is not limited to the protection of women or home entrances but can also be utilized in other fields or for other purposes. For example, the safety door device may be used at the entrance of an office building to prevent a large number of people from rushing in at once and to maintain entry traffic below a certain level. Brief explanation of the drawing

[0012] FIG. 1 is a perspective view of a door device according to one embodiment of the present invention. FIG. 2 is a conceptual perspective view of a hinge device according to an exemplary embodiment. FIG. 3 is a schematic perspective view of a hinge device according to one embodiment. Figure 4 is a side view of the hinge device shown in Figure 3. FIGS. 5a to 5h are drawings for explaining the operation of a door device according to an exemplary embodiment. FIG. 6 is a flowchart showing an example of a process for controlling the opening and closing of a door device in another embodiment in which a motor is installed and used. Figures 7a through 7c show the source code of a program for experimenting with the process illustrated in Figure 6 through an Arduino project. Specific details for implementing the invention

[0013] The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0014] While ordinal numbers such as first, second, etc. may be used to describe various components, said components shall not be limited by said terms. The said terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and / or" includes a combination of a plurality of related described items or any of a plurality of related described items.

[0015] In the embodiments of the present application, "at least one of A and B" may mean "at least one of A or B" or "at least one of one or more combinations of A and B". Additionally, in the embodiments of the present application, "at least one of A and B" may mean "at least one of A or B" or "at least one of one or more combinations of A and B".

[0016] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0017] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to specify the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0018] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0019] Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, to facilitate overall understanding, the same reference numerals are used for identical components in the drawings, and redundant descriptions of identical components are omitted.

[0020] FIG. 1 is a perspective view of a door device according to an exemplary embodiment of the present invention. The door device comprises a hinge (100a, 100b), an outer door (200), and an inner door (300), and may be installed, for example, at the entrance of a living space.

[0021] Hinges (100a, 100b) are installed one each at the top and bottom of one side wall of the door frame of the entrance, thereby rotatably connecting the door device to the door frame. Each of the outer door (200) and the inner door (300) has one corner attached to the door frame through the hinges (100a, 100b). Accordingly, each of the outer door (200) and the inner door (300) can rotate horizontally around the hinges (100a, 100b) to open and close the entrance. In one embodiment, the outer door (200) can be opened and closed to the outside of the entrance, and the inner door (300) can be opened and closed to the inside of the entrance.

[0022] According to the present invention, the outer door (200) and the inner door (300) can each be opened and closed independently within a limited angle range, but the angle between the outer door (200) and the inner door (300) cannot exceed a certain limit angle, such as 90 degrees or 100 degrees. Accordingly, when the angle between the outer door (200) and the inner door (300) reaches the limit angle, the operation of opening the outer door (200) toward the outside of the entrance can pull the inner door (300) in a closing direction, and the operation of opening the inner door (300) toward the interior can pull the outer door (200) in a closing direction.

[0023] According to an exemplary embodiment, the lower hinge (100b) may have a structure and shape similar to the upper hinge (100a), or it may have a structure and shape that is vertically symmetrical to the upper hinge (100a). For convenience of explanation, the configuration and operation of the hinge according to the exemplary embodiment will be described below with the upper hinge (100a) as the focus. However, it should be noted that the description of the upper hinge (100a) can be similarly applied to the lower hinge (100b).

[0024] FIG. 2 is a conceptual perspective view of an upper hinge (100a) in an exemplary embodiment. The upper hinge (100a) may comprise a base frame (120), a first ring frame (140) provided on the upper side of the base frame (120), and a second ring frame (160) provided on the upper side of the first ring frame (140). In the exemplary embodiment, the base frame (120), the first ring frame (140), and the second ring frame (160) may have a ring shape. Additionally, the upper hinge (100a) may further comprise a hinge pin (not shown) arranged to extend through the base frame (120), the first ring frame (140), and the second ring frame (160) in an upward and downward direction. The hinge pin maintains the alignment of the base frame (120), the first ring frame (140), and the second ring frame (160), and allows the first ring frame (140) and / or the second ring frame (160) to rotate relative to the base frame (120). Meanwhile, in a modified embodiment, the first ring frame (140) may be provided on the lower side of the base frame (120) and the second ring frame (160) may be provided on the lower side of the first ring frame (140).

[0025] In an exemplary embodiment, a groove (122) may be formed by being recessed downward in a portion of the upper corner of the base frame (120) facing the first ring frame (140). Additionally, a projection (142) extending downward may be formed at the bottom of the first ring frame (140). The projection (142) of the first ring frame (140) may be positioned within the groove (122) of the base frame (120). Accordingly, the projection (142) of the first ring frame (140) acts as a stopper, thereby limiting the rotation of the first ring frame (140) to a certain range, that is, within the range where the projection (142) catches on both side walls of the groove (122).

[0026] Meanwhile, a portion of the upper corner of the first ring frame (140) facing the second ring frame (160) may be formed by being indented downward, and a groove or slit (144) may be formed to extend in the radial direction. Additionally, a projection (164) may be formed on the second ring frame (160) that extends outward and penetrates the slit (144) from the inside out. Accordingly, the projection (164) of the second ring frame (160) acts as a stopper, thereby limiting the rotation of the second ring frame (160) to a certain range, that is, within the range where the projection (164) catches on both side walls of the slit (144).

[0027] FIG. 3 is a schematic perspective view showing the upper hinge (100a) according to one embodiment in more detail, and FIG. 4 is a side view of the upper hinge (100a).

[0028] The base frame (120) provides the base of the upper hinge (100a) and may be equipped with an upper body (132a), a lower body (132b), and a door frame bracket (134). According to one embodiment, the upper body (132a) and the lower body (132b) are approximately ring-shaped. The door frame bracket (134) is for fixing the upper hinge (100a) to the door frame, is plate-shaped, and is formed to extend radially outward from the outer surface of the upper body (132a) and the lower body (132b). Screw holes are formed in the door frame bracket (134) for fastening to the door frame by screws. The upper body (132a) and the lower body (132b) are connected to each other by the door frame bracket (134). The upper body (132a), the lower body (132b), and the door frame bracket (134) can be molded as a single unit. A groove (122) may be formed at the bottom of the upper body (132a) or at the top of the lower body (132b).

[0029] The first ring frame (140) may be provided with an upper ring (152a), a lower ring (152b), and a first door bracket (154). According to one embodiment, the upper ring (152a) and the lower ring (152b) are in the shape of rings. The upper ring (152a) may be located at the lower part of the upper body (132a) of the base frame (120), and the lower ring (152b) may be located at the upper part of the lower body (132b) of the base frame (120). The first door bracket (154) is for fixing an outer door (200) to the first ring frame (140), is in the shape of a plate, and is formed to extend outward in a radial direction from the outer surface of the upper ring (152a) and the lower ring (152b). Screw holes are formed in the first door bracket (154) for fastening to the outer door (200) by means of screws. The upper ring (152a) and the lower ring (152b) are connected to each other by the first door bracket (154). The upper ring (152a), the lower ring (152b), and the first door bracket (154) can be formed as a single unit.

[0030] A projection (142) may be formed at the top of the upper ring (152a) or at the bottom of the lower ring (152b) in correspondence with the groove (122) of the base frame (120). Meanwhile, in this embodiment, slits (153a, 154b) may be formed at the bottom of the upper ring (152a) and / or at the top of the lower ring (152b) to limit the range of movement of the second ring frame (160). The radial length of the slits (153a, 154b) may be formed to a length corresponding to a central angle in the range of 90 degrees or 100 degrees. Accordingly, as described below, the rotation of the inner door (300) may be limited to a range of approximately 90 degrees or 100 degrees relative to the outer door (200).

[0031] The second ring frame (160) may be provided with a ring body (172) and a second door bracket (174). According to one embodiment, the ring body (172) is in the shape of a ring and may be positioned between the upper ring (152a) and the lower ring (152b) of the first ring frame (140). The second door bracket (174) is for fixing an inner door (300) to the second ring frame (160), is in the shape of a plate, and is formed to extend outward in a radial direction from the outer surface of the ring body (172). Screw holes are formed in the second door bracket (174) for fastening to the inner door (300) by means of screws. The ring body (172) and the second door bracket (174) may be molded as a single unit.

[0032] In one embodiment, the upper portion of the second door bracket (174) extends upward beyond the upper edge of the ring body (172). The upper portion of the second door bracket (174) extends inward in the radial direction of the upper hinge (100a) so as to interfere with the slit (153a) of the first ring frame (140). Additionally, the lower portion of the second door bracket (174) extends downward beyond the lower edge of the ring body (172). The lower portion of the second door bracket (174) extends inward in the radial direction of the upper hinge (100a) so as to interfere with the slit (153b) of the first ring frame (140). Accordingly, the second door bracket (174) also performs the function of the projection (164) shown in FIG. 2. That is, the second door bracket (174) acts as a stopper, so that the rotation of the second ring frame (160) can be limited to the range in which the second door bracket (174) catches on both side walls of the slits (153a, 153b).

[0033] Hereinafter, the operation of a door device according to an exemplary embodiment will be described with reference to FIGS. 5a to 5h. FIGS. 5a to 5h illustrate the door device with an outer door (200) and an inner door (300), and centered on the slits (153a, 153b) of the second ring frame (160).

[0034] When the user is staying inside the house, the outer door (200) may be positioned in a closed state at the entrance as shown in FIG. 5a, and the inner door (300) may be near the outer door (200).

[0035] When the user wishes to go out, the user can open the inner door (300) by pulling it toward the inside of the house as shown in FIG. 5b, and open the outer door (200) by pushing it toward the outside of the house as shown in FIG. 5c. At this time, as the outer door (200) is opened, the angle between the outer door (200) and the inner door (300) reaches nearly 90 degrees, and the projection (164) of the second ring frame (160) to the second door bracket (174) come into contact with the side wall of the slit (144) to the slits (153a, 153b) of the first ring frame (140). In this case, the angle between the outer door (200) and the inner door (300) does not exceed 90 degrees, and the inner door (300) drives the outer door (200).

[0036] After the user exits through the door, the user can close the outer door (200) by pushing it toward the inside of the house as shown in FIG. 5d. As a result, the outer door (200) and the inner door (300) can return to the state shown in FIG. 5e.

[0037] When a user who was outside returns home and wants to enter through the door, the outer door (200) can be pulled out of the house, and then the inner door (300) can be pushed inward between the outer door (200) and the inner door (300) as shown in Fig. 5f.

[0038] As shown in FIG. 5g, the user can continuously push the inner door (300) inward or pull the handle of the outer door (200) to completely close the outer door (200). At this time, if the user continues to push the inner door (300) inward so that the angle between the inner door (300) and the outer door (200) reaches nearly 90 degrees, the projection (164) of the second ring frame (160) to the second door bracket (174) come into contact with the side wall of the slit (144) to the slits (153a, 153b) of the first ring frame (140), and the outer door (200) pushes the inner door (300). Therefore, the outer door (200) can be closed by only the action of continuously pushing the inner door (300) inward.

[0039] After completing entry into the house, the user can push the inner door (300) toward the entrance so that the inner door (300) is positioned close to the outer door (200) as in Fig. h, thereby securing the indoor space.

[0040] If a person the user does not know or knows pulls the outer door (200) to open the entrance and attempts to follow in, the user can use all their strength to continuously push the inner door (300) inward toward the house to close the outer door (200), as shown in FIG. 5g. Since it is easier to exert force to push the inner door (300) inward with all one's strength—even for a woman—rather than to pull the outer door (200), the user can overcome the intruder and successfully enter the house and close the outer door (200). Accordingly, the user's safety level can be greatly increased.

[0041] Although the present invention has been described above with reference to preferred embodiments, the invention is not limited thereto and can be modified in various ways. For example, sensors may be installed around the entrance, and an alarm may be automatically triggered when predetermined conditions are met. Additionally, a forced alarm may be triggered if a force exceeding a certain magnitude is applied to the outer or inner door, or if the closing speed exceeds a threshold. It is also possible to install CCTV cameras around the door device and detect abnormal intruders and trigger an alarm based on camera footage using a neural network, such as a Convolutional Neural Network (CNN).

[0042] Meanwhile, motors may be installed on the outer door and / or inner door to ensure smooth opening and closing operations, or to ensure that the door device can be opened and closed in a way that reliably protects the user even when they are tense or startled. Additionally, during the opening and closing process, after a specific step is completed, the inner door and / or outer door may be kept in a specific position for the user's convenience.

[0043] FIG. 6 is a flowchart showing an example of a process for controlling the opening and closing of a door device in another embodiment in which a motor is installed and used.

[0044] According to one embodiment, separate motors may be installed on the outer door (200) and the inner door (300) shown in FIG. 1. Additionally, a door lock (not shown) capable of controlling the motors of the outer door (200) and the inner door (300) may be installed on the outer door (200). The door lock may be provided with a fingerprint recognition unit and a keypad for password input. In one embodiment, fingerprint recognition may be configured to be used in emergency situations, and password input may be configured to be used in normal situations. In this embodiment, when a user is identified through fingerprint recognition, the door lock of the door device may perform a special operation sequence to protect the user, who is the resident.

[0045] Referring to FIG. 6, the controller of the door lock can monitor whether a fingerprint input or a password input is made. If any input is received during monitoring, it determines whether a fingerprint has been entered and whether the entered fingerprint is a registered fingerprint (Step 700). If fingerprint recognition is successful in Step 700, the controller considers that the user is in an urgent situation requiring protection and performs a special operation sequence for user protection (Step 710).

[0046] Specifically, the outer door can be operated to open for a certain period of time (e.g., 0.2 seconds), and then operated to close for a short period (e.g., 0.05 seconds). Subsequently, the inner door is operated to open for a certain period of time (e.g., 0.2 seconds), and the outer door is operated to stop briefly (e.g., 0.05 seconds) to allow the user to prepare to enter. Then, the inner door is operated to stop for a certain period of time (e.g., 3 seconds) to allow the user to enter the house. Finally, the outer door is operated to close for a certain period of time (e.g., 0.2 seconds) to completely close the outer door, and then all motors are stopped to close the entrance for a certain period of time so that no one can enter.

[0047] Meanwhile, in step 700, if the input through the door lock is not a fingerprint or the input fingerprint is not a previously registered one, it is determined whether a password has been entered and whether the input password matches a registered password (step 720). In this case, the outer door and the inner door may be opened and stopped for a certain period of time (e.g., 3 seconds) to allow a person to enter the house, and then the outer door and the inner door may be closed.

[0048] If fingerprint recognition is not performed or fails at step 700, or if the password does not match at step 720, the process can proceed back to step 700 and wait for the fingerprint or password to be entered again. The process illustrated in FIG. 6 can be continuously repeated as long as the battery power of the door lock is sufficiently maintained.

[0049] The operability and suitability of the process illustrated in Fig. 6 were tested through an Arduino project. The Arduino program illustrated in Figs. 7a to 7c was coded and tested on an Arduino board. The test was conducted by assuming a fingerprint recognition success situation and a password input success situation based on the states of two buttons (button1, button2). Specifically, button 1 was intended to assume a fingerprint recognition success situation, and button 2 was intended to assume a password input success situation. A bidirectional driving method using a DC motor and an H-bridge was adopted. As illustrated in Figs. 7a to 7c, it was confirmed that the door system could be successfully driven by the motors through a relatively simple program.

[0050] Meanwhile, although the above description explains that the opening range of the inner door relative to the outer door is set to, for example, 90 degrees or 110 degrees and that the inner door can be opened or closed at will within this angle range, this range can be changed by the user. For example, the angle can be set or adjusted by applying a ratchet and pawl mechanism.

[0051] When a motor is applied as in the embodiment described with reference to FIGS. 6 to 7c, for example, by making the motor driver into a cost state, for example by adding a sprag clutch or other clutch / disengage mechanism, or by adjusting the reduction ratio, the problem of difficulty in manual opening and closing due to back EMF caused by internal motor resistance can be solved. Since such a configuration can be easily implemented by a person with ordinary knowledge in the technical field to which the present invention belongs based on this specification, a detailed description is omitted.

[0052] Therefore, those skilled in the art to which the present invention pertains will understand that various modifications and changes can be made to the present invention without departing from the spirit and scope of the invention as described in the claims below. Explanation of the symbols

[0053] 100a, 100b: Hinge 120: Base Frame 122: Yohome 132a: Upper body 132b: Lower body 134: Door frame bracket 140: 1st ring frame 142: Protrusion 144: Slit 152a: Upper ring 152b: Lower ring 153a, 154b: Slit 154: First door bracket 160: Second ring claim 164: Protrusion 172: Ring body 174: Second door bracket 200: Exterior door 300: Interior door

Claims

Claim 1 A door device comprising: a hinge assembly having a base frame having a door frame bracket formed on its outer surface for fixing to a door frame and capable of rotating around a rotation axis extended in a vertical direction; a first ring frame having a first bracket formed to extend from its outer surface and capable of rotating around the rotation axis relative to the base frame and capable of rotating within a predetermined angle range relative to the first ring frame around the rotation axis and having a second bracket formed to extend from its outer surface; a first door mounted on the first bracket; and a second door mounted on the second bracket; wherein a slit extending in a horizontal direction is formed on the first ring frame and a protrusion is provided on the second ring frame such that the rotation range is limited by the slit, so that each of the first door and the second door can rotate around the rotation axis without the angle between the first door and the second door exceeding the predetermined angle range. Claim 2 A door device according to claim 1, wherein the first ring frame is each shaped like a ring and has an upper ring and a lower ring connected to the first bracket, the slit is formed in at least one of the upper ring and the lower ring, and the second ring frame has the protrusion corresponding to the position and number of the slit. Claim 3 A door device according to claim 2, comprising: a ring body in which the second ring frame is in the shape of a ring and is connected to the second bracket; wherein a part of the second bracket is inserted into the slit as the protrusion. Claim 4 delete

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