Door unlocking and locking device and building

Abstract

Provided is a door unlocking / locking device that can restrict unlocking of a door by a target person. 【Solution means】The door unlocking / locking device includes a lock part that unlocks / locks the door, a plurality of operation parts provided on the inner surface of the door leaf of the door for performing unlocking / locking operations, and a control part that controls unlocking / locking of the door by the lock part. The control part unlocks the door by the lock part when an unlocking condition is satisfied, the unlocking condition including that an unlocking operation time, which is the time required for the unlocking operations of the plurality of operation parts, is less than a predetermined operation time, and that an unlocking operation order, which is the order in which the unlocking operations of the plurality of operation parts are performed, is a predetermined operation order.

Description

Technical Field

[0001] The present invention relates to a door unlocking and locking device and a building.

Background Art

[0002] There is known a building provided with a door unlocking and locking device for unlocking and locking a door. For example, in the door unlocking and locking device described in Patent Document 1, if one of the two thumb turns is rotated to the unlocking position and the other thumb turn is not operated during a predetermined time period, both thumb turns are automatically returned to the locked state.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, it is not preferable for users such as children and dementia patients (hereinafter referred to as "target persons") to unlock the door when there is no protector or caregiver. For this reason, it is required that the unlocking of the door unlocking and locking device be restricted by the unlocking operation of the target person.

Means for Solving the Problems

[0005] (1) A door unlocking and locking device for solving the above problems includes a lock unit for unlocking and locking a door, a plurality of operation units provided on the inner surface of the door leaf of the door for performing an unlocking and locking operation, and a control unit for controlling the unlocking and locking of the door by the lock unit. The control unit unlocks the door by the lock unit when an unlocking condition is satisfied, including that an unlocking operation time, which is the time required for the unlocking operation of the plurality of operation units, is less than a predetermined operation time, and that an unlocking operation order, which is the order in which the unlocking operations of the plurality of operation units are performed, is a predetermined operation order.

[0006] When the target person performs an unlocking operation, it is assumed that the unlocking operation time will be longer than when a non-target person performs the unlocking operation due to reasons such as the operation part being difficult to reach by hand or the hand strength being weak. Also, when the target person performs the unlocking operation, the unlocking operation sequence does not necessarily become the predetermined operation sequence. According to the above configuration, when the unlocking operation time is less than the predetermined operation time and the unlocking operation sequence is the predetermined operation sequence, the door is unlocked by the locking part. Therefore, the unlocking of the door by the target person can be restricted.

[0007] (2) In the door unlocking and locking device of (1) above, it is provided on the inner handle provided on the inner surface of the door and includes a pressure sensor that detects the pressure when the user grips the inner handle. The unlocking condition further includes that the pressure detected by the pressure sensor is within a predetermined pressure range.

[0008] When the target person grips the inner handle, it is assumed that the pressure detected by the pressure sensor will be outside the predetermined pressure range due to reasons such as weak grip strength or difficulty in controlling the grip strength. According to the above configuration, in addition to the unlocking operation time being less than the predetermined operation time and the unlocking operation sequence being the predetermined operation sequence, when the pressure detected by the pressure sensor satisfies being within the predetermined pressure range, the door is unlocked by the locking part. Therefore, the unlocking of the door by the target person can be more reliably restricted.

[0009] (3) In the door unlocking and locking device of (2) above, the predetermined pressure range is set to be greater than a first pressure and less than a second pressure that is greater than the first pressure. When the subject is a child or a female dementia patient, it is assumed that the pressure detected by the pressure sensor will be small because the grip strength is weak. When the subject is a male dementia patient, it is assumed that the pressure detected by the pressure sensor will be large because it is difficult to control the grip strength. For this reason, for example, when a predetermined pressure range is set to be less than the second pressure, if the subject is a male dementia patient, the unlocking of the door can be restricted, but if the subject is a child or a female dementia patient, there is a possibility that the unlocking of the door cannot be restricted. Also, for example, when a predetermined pressure range is set to be larger than the first pressure, if the subject is a child or a female dementia patient, the unlocking of the door can be restricted, but if the subject is a male dementia patient, there is a possibility that the unlocking of the door cannot be restricted.

[0010] On the other hand, according to the above configuration, the predetermined pressure range is set to be larger than the first pressure and less than the second pressure. That is, both the lower limit and the upper limit are set as the predetermined pressure range. For this reason, in both the case where the subject is a child or a female dementia patient and the case where the subject is a male dementia patient, the unlocking of the door by the subject can be restricted. Therefore, the unlocking of the door by the subject can be more appropriately restricted.

[0011] (4) In any one of the door unlocking and locking devices according to (1) to (3) above, when the unlocking condition is not satisfied, the control unit locks the door by the locking unit. According to this configuration, when the unlocking condition is not satisfied, the door is locked by the locking unit. Therefore, the door can be surely locked.

[0012] (5) In any one of the door unlocking and locking devices according to (1) to (4) above, when the unlocking condition is not satisfied, the control unit disables the operation of the operation unit by the user. According to this configuration, when the unlocking condition is not satisfied, the operation of the operation unit by the user is disabled. Therefore, it is possible to restrict the subject from performing the unlocking operation again.

[0013] (6) In any one of the door unlocking and locking devices according to (1) to (5) above, when an emergency signal is input from the abnormality detection unit, the control unit forcibly unlocks the door by the locking unit regardless of whether the unlocking condition is satisfied.

[0014] According to this configuration, in an emergency, the door is forcibly unlocked by the locking unit regardless of whether the unlocking condition is satisfied. Therefore, in an emergency, the subject can open the door.

[0015] (7) The building that solves the above problems includes any one of the door unlocking and locking devices according to (1) to (6) above. When the subject performs an unlocking operation, it is assumed that the unlocking operation time will be longer than when a non-subject performs the unlocking operation due to reasons such as the operation unit being difficult to reach by hand or the subject having weak hand strength. Also, when the subject performs an unlocking operation, the unlocking operation sequence does not necessarily follow the predetermined operation sequence. According to the above configuration, when the release operation time is less than the predetermined operation time and the unlocking operation sequence is the predetermined operation sequence, the door is unlocked by the locking unit. Therefore, it is possible to regulate the unlocking of the door by the subject.

Effect of the Invention

[0016] According to the door of the building of the present invention, it is possible to regulate the unlocking of the door by the subject.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Embodiment for Carrying Out the Invention

[0018] Referring to FIGS. 1 to 4, the door unlocking and locking device 10 and the building 100 of the present embodiment will be described. The building 100 of the present embodiment is a house. As shown in FIG. 1, the building 100 includes a wall 110, a door frame 120 fitted into an opening 110a of the wall 110, and a door 130 rotatably provided with respect to the door frame 120 via hinges (not shown).

[0019] The door frame 120 has a first side frame portion 121 extending in the vertical direction, a second side frame portion 122 extending in the vertical direction, and an upper frame portion 123 connecting the upper end portion of the first side frame portion 121 and the upper end portion of the second side frame portion 122. On the surface of the first side frame portion 121 facing the second side frame portion 122, a first recess 121a and a second recess 121b are provided. The first recess 121a is located above the second recess 121b.

[0020] The door 130 includes a door leaf 131, an inner handle 132, an outer handle (not shown), and a latch mechanism 133. The door leaf 131 has a first side surface 131a facing the first side frame portion 121, a second side surface 131b facing the second side frame portion 122, an inner surface 131c located on the indoor side, and an outer surface located on the outdoor side. The inner handle 132 is provided on the inner surface 131c of the door leaf 131. The outer handle is provided on the outer surface of the door leaf 131. The inner handle 132 and the outer handle of the present embodiment are each a lever-type handle.

[0021] The latch mechanism 133 has a latch bolt 133a and a latch drive unit 133b that drives the latch bolt 133a. The latch drive unit 133b is provided inside the door 131. The latch bolt 133a moves between a protruding position where it protrudes from the first side surface 131a of the door 131 and a non-protruding position where it is located inside the door 131 when driven by the latch drive unit 133b. The latch bolt 133a is inserted into the first recess 121a of the door frame 120 when in the protruding position. The latch bolt 133a is not inserted into the first recess 121a of the door frame 120 when in the non-protruding position.

[0022] The inner handle 132 of the present embodiment is a push-pull type handle. When the user performs a push operation or a pull operation while gripping the inner handle 132, the latch bolt 133a moves from the protruding position to the non-protruding position. Therefore, the user can open the door 130 by performing a push operation or a pull operation while gripping the inner handle 132 when the door 130 is unlocked.

[0023] The building 100 of the present embodiment includes an abnormality detection unit 140 (see FIG. 2). Examples of the abnormality detection unit 140 include an earthquake detection unit that detects earthquakes and a fire detection unit that detects fires. When the abnormality detection unit 140 detects an abnormality such as an earthquake or a fire, it outputs an emergency signal to the control unit 16 described later.

[0024] <Door unlocking and locking device> As shown in FIGS. 1 and 2, the building 100 is provided with a door unlocking device 10 for unlocking the door 130. The door unlocking device 10 includes a lock portion 12, a plurality of operation portions 13, an operation detection portion 14, a pressure sensor 15, and a control portion 16. The door unlocking device 10 of the present embodiment includes two lock portions 12. In the following description, one of the two lock portions 12 is referred to as a first lock portion 12a, and the other is referred to as a second lock portion 12b. The door unlocking device 10 of the present embodiment includes two operation portions 13 as the plurality of operation portions 13. In the following description, one of the two operation portions 13 is referred to as a first operation portion 13a, and the other is referred to as a second operation portion 13b.

[0025] As shown in FIG. 1, the first lock portion 12a and the second lock portion 12b are respectively provided on the door leaf 131. The first lock portion 12a of the present embodiment is provided above the inner handle 132. The second lock portion 12b of the present embodiment is provided below the inner handle 132.

[0026] The first lock portion 12a has a first deadbolt 21 and a first lock driving portion 22 that drives the first deadbolt 21. The first lock driving portion 22 is provided inside the door leaf 131. The first deadbolt 21 is moved between a locked position where it protrudes from the first side surface 131a of the door leaf 131 and an unlocked position where it is located inside the door leaf 131 by being driven by the first lock driving portion 22. The first deadbolt 21 is inserted into the first recess 121a of the door frame 120 in a state where it is located at the locked position. The first deadbolt 21 is not inserted into the first recess 121a of the door frame 120 in a state where it is located at the unlocked position.

[0027] The second locking portion 12b has a second dead bolt 23 and a second lock driving portion 24 that drives the second dead bolt 23. The second lock driving portion 24 is provided inside the door 131. The second dead bolt 23 moves between a locked position where it protrudes from the first side surface 131a of the door 131 and an unlocked position where it is located inside the door 131 by being driven by the second lock driving portion 24. The second dead bolt 23 is inserted into the second recess 121b of the door frame 120 when in the locked position. The second dead bolt 23 is not inserted into the second recess 121b of the door frame 120 when in the unlocked position.

[0028] The first locking portion 12a and the second locking portion 12b lock and unlock the door 130. Specifically, the door 130 is locked when at least one of the first dead bolt 21 and the second dead bolt 23 is in the locked position. "At least one of the first dead bolt 21 and the second dead bolt 23" refers to "only the first dead bolt 21", "only the second dead bolt 23", or "both the first dead bolt 21 and the second dead bolt 23". The door 130 is unlocked when the first dead bolt 21 and the second dead bolt 23 are each in the unlocked position.

[0029] The first operation portion 13a and the second operation portion 13b are each provided on the door 131. The first operation portion 13a of the present embodiment is provided above the inner handle 132. The second operation portion 13b of the present embodiment is provided below the inner handle 132.

[0030] As shown in FIG. 2, the first operation unit 13a includes a first thumb turn 31, a first operation drive unit 32 that drives the first thumb turn 31, and a first detection unit 33 connected to the first operation drive unit 32. The first thumb turn 31 is provided on the inner surface 131c of the door 131. The first operation drive unit 32 and the first detection unit 33 are provided inside the door 131. The first thumb turn 31 is switched between a locked state and an unlocked state by being rotated by the user or the first operation drive unit 32. When an unlocking operation for switching the first thumb turn 31 from the locked state to the unlocked state is performed by the user or the first operation drive unit 32. When a locking operation for switching the first thumb turn 31 from the unlocked state to the locked state is performed by the user or the first operation drive unit 32. The first detection unit 33 detects whether the first thumb turn 31 is in the locked state or the unlocked state.

[0031] The second operation unit 13b includes a second thumb turn 34, a second operation drive unit 35 that drives the second thumb turn 34, and a second detection unit 36 connected to the second operation unit 13b. The second thumb turn 34 is provided on the inner surface 131c of the door 131. The second operation drive unit 35 and the second detection unit 36 are provided inside the door 131. The second thumb turn 34 is switched between a locked state and an unlocked state by being rotated by the user or the second operation drive unit 35. When an unlocking operation for switching the second thumb turn 34 from the locked state to the unlocked state is performed by the user or the second operation drive unit 35. When a locking operation for switching the second thumb turn 34 from the unlocked state to the locked state is performed by the user or the second operation drive unit 35. The second detection unit 36 detects whether the second thumb turn 34 is in the locked state or the unlocked state.

[0032] The operation detection unit 14 is connected to the first detection unit 33 and the second detection unit 36. In the present embodiment, the operation detection unit 14 is provided inside the inner handle 132. The operation detection unit 14 detects from the detection result of the first detection unit 33 that the user has performed a locking operation or an unlocking operation on the first operation unit 13a. The operation detection unit 14 detects from the detection result of the second detection unit 36 that the user has performed a locking operation or an unlocking operation on the second operation unit 13b.

[0033] The operation detection unit 14 detects the unlocking operation time, which is the time required for the unlocking operation of the plurality of operation units 13. The operation detection unit 14 in the present embodiment detects, as the unlocking operation time, the time from when the first operation unit 13a is unlocked until the second operation unit 13b is unlocked, or the time from when the second operation unit 13b is unlocked until the first operation unit 13a is unlocked.

[0034] Further, the operation detection unit 14 detects the unlocking operation order, which is the order in which the unlocking operations of the plurality of operation units 13 are performed. In the present embodiment, the operation detection unit 14 detects whether the unlocking operation is performed in the order from the first operation unit 13a to the second operation unit 13b, or in the order from the second operation unit 13b to the first operation unit 13a.

[0035] The pressure sensor 15 is attached to the inner handle 132. Specifically, the pressure sensor 15 is attached to the surface of the inner handle 132 that faces the inner surface 131c of the door 131. The pressure sensor 15 detects the pressure when the user grips the inner handle 132.

[0036] The control unit 16 is provided at a location different from the door 130. For example, the control unit 16 is provided inside a shoe closet (not shown). The control unit 16 includes one or more CPUs (Central Processing Units) or MPUs (Micro Processing Units) that operate according to a program. The control unit 16 may be configured as a circuit including a CPU or MPU, a circuit including an application-specific integrated circuit (ASIC), or a combined circuit of these circuits. The control unit 16 may include a memory such as a RAM and a ROM. The memory stores a program configured to cause the CPU to execute processing.

[0037] The control unit 16 is connected to the operation detection unit 14. The control unit 16 acquires the unlocking operation time and the unlocking operation order from the operation detection unit 14. The control unit 16 is connected to the pressure sensor 15. The control unit 16 acquires the pressure detected by the pressure sensor 15. The control unit 16 is connected to the lock unit 12. The control unit 16 controls the locking and unlocking of the door 130 by the lock unit 12. The control unit 16 of the present embodiment is connected to the first lock unit 12a and the second lock unit 12b. The control unit 16 of the present embodiment controls the locking and unlocking of the door 130 by the first lock unit 12a and the second lock unit 12b.

[0038] When the unlocking condition described later is satisfied, the control unit 16 unlocks the door 130 by the lock unit 12. Specifically, when the unlocking condition is satisfied, the control unit 16 outputs an unlocking command signal to each of the first lock driving unit 22 and the second lock driving unit 24. When the unlocking command signal is input from the control unit 16, the first lock driving unit 22 drives the first deadbolt 21 so that the first deadbolt 21 is located at the unlocking position. When the unlocking command signal is input from the control unit 16, the second lock driving unit 24 drives the second deadbolt 23 so that the second deadbolt 23 is located at the unlocking position. Thereby, the door 130 is unlocked by the first lock unit 12a and the second lock unit 12b.

[0039] The unlocking conditions of this embodiment include that the unlocking operation time is less than a predetermined operation time, the unlocking operation sequence is a predetermined operation sequence, and the pressure detected by the pressure sensor 15 is within a predetermined pressure range. Therefore, when the unlocking operation time is less than the predetermined operation time, the unlocking operation sequence is the predetermined operation sequence, and the pressure detected by the pressure sensor 15 is within the predetermined pressure range, the control unit 16 unlocks the door 130 by the first locking unit 12a and the second locking unit 12b.

[0040] The predetermined operation time is set based on the time required for a target person and a non-target person to perform an unlocking operation on a plurality of operation units 13. When the target person is a child, due to their low height, it is difficult to operate the first operation unit 13a located on the upper side. Also, when the target person is an elderly person, due to their weak hand strength, it is difficult to operate the operation unit 13. For this reason, it is assumed that the unlocking operation time by the target person will be longer than that by the non-target person. The predetermined operation time is set to be shorter than the time required for the target person to perform an unlocking operation on a plurality of operation units 13 and longer than the time required for the non-target person to perform an unlocking operation on a plurality of operation units 13.

[0041] The predetermined operation sequence is set to be different from the sequence assumed as the unlocking operation sequence of the operation unit 13 by the target person. For example, when the target person is a child, due to their low height, it is easier to operate the second operation unit 13b located below the first operation unit 13a located on the upper side. For this reason, it is assumed that the target person will perform the unlocking operation in the order from the second operation unit 13b to the first operation unit 13a. In this case, the predetermined operation sequence is set in the order from the first operation unit 13a to the second operation unit 13b.

[0042] The predetermined pressure range is set based on the grip strength of the subject. When the subject is a child or an elderly woman, the grip strength is weak, so the force to hold the inner handle 132 is relatively small. When the subject is an elderly man with dementia, due to the decline in thinking ability, it is difficult to control the grip strength, so the force to hold the inner handle 132 is relatively large. The predetermined pressure range of the present embodiment is set to be greater than the first pressure and less than the second pressure, which is greater than the first pressure. The first pressure is set based on the grip strength of children or elderly women. The second pressure is set based on the grip strength of elderly men.

[0043] When an emergency signal is input from the abnormality detection unit 140, the control unit 16 of the present embodiment forcibly unlocks the door 130 by the first lock unit 12a and the second lock unit 12b regardless of whether the unlocking condition is satisfied.

[0044] When the unlocking condition is not satisfied, the control unit 16 locks the door 130 by the lock unit 12. Specifically, when at least one of the unlocking operation time being longer than the predetermined operation time, the unlocking operation sequence not being the predetermined operation sequence, and the pressure detected by the pressure sensor 15 not being within the predetermined pressure range is satisfied, the control unit 16 determines that the unlocking condition is not satisfied. When the control unit 16 determines that the unlocking condition is not satisfied, the control unit 16 outputs a locking command signal to each of the first lock driving unit 22 and the second lock driving unit 24. When the locking command signal is input from the control unit 16, the first lock driving unit 22 drives the first deadbolt 21 so that the first deadbolt 21 is located at the locking position. When the locking command signal is input from the control unit 16, the second lock driving unit 24 drives the second deadbolt 23 so that the second deadbolt 23 is located at the locking position. Thereby, the door 130 is locked by the first lock unit 12a and the second lock unit 12b.

[0045] The control unit 16 of the present embodiment controls the first operation unit 13a and the second operation unit 13b. When the unlocking condition is not satisfied, the control unit 16 outputs a locking operation command signal to each of the first operation driving unit 32 and the second operation driving unit 35.

[0046] When the locking operation command signal is input from the control unit 16 to the first operation drive unit 32, the first thumb turn 31 is set to the locked state. Further, when the locking operation command signal is input from the control unit 16 to the first operation drive unit 32, the rotation of the first thumb turn 31 is locked so that the first thumb turn 31 cannot be operated by the user. In this way, when the unlocking condition is not satisfied, the control unit 16 disables the operation of the first operation unit 13a by the user.

[0047] When the locking operation command signal is input from the control unit 16 to the second operation drive unit 35, the second thumb turn 34 is set to the locked state. Further, when the locking operation command signal is input from the control unit 16 to the second operation drive unit 35, the rotation of the second thumb turn 34 is locked so that the second thumb turn 34 cannot be operated by the user. In this way, when the unlocking condition is not satisfied, the control unit 16 disables the operation of the second operation unit 13b by the user.

[0048] <Locking / Unlocking Process> The locking / unlocking process performed by the door locking / unlocking device 10 will be described. The locking / unlocking process is started when the user holds the inner handle 132 after operating the first thumb turn 31 and the second thumb turn 34 for unlocking.

[0049] As shown in FIG. 3, in step S1, the control unit 16 determines whether the unlocking operation time is less than a predetermined operation time. If the unlocking operation time is less than the predetermined operation time (YES in step S1), the process proceeds to step S2. If the unlocking operation time is equal to or greater than the predetermined operation time (NO in step S1), the process proceeds to step S3. In step S3, the control unit 16 performs the locking of the door 130 by the first lock unit 12a and the second lock unit 12b on the assumption that the unlocking condition is not satisfied, and disables the operations of the first thumb turn 31 and the second thumb turn 34.

[0050] In step S2, the control unit 16 determines whether the unlocking operation sequence is a predetermined operation sequence. If the unlocking operation sequence is the predetermined operation sequence (YES in step S2), the process proceeds to step S4. If the unlocking operation sequence is not the predetermined operation sequence (NO in step S2), the process proceeds to step S3.

[0051] In step S4, the control unit 16 determines whether the pressure detected by the pressure sensor 15 is within a predetermined pressure range. If the pressure detected by the pressure sensor 15 is within the predetermined pressure range (YES in step S4), the process proceeds to step S5. If the pressure detected by the pressure sensor 15 is not within the predetermined pressure range (NO in step S4), the process proceeds to step S3.

[0052] In step S5, the control unit 16 unlocks the door 130 by the first lock unit 12a and the second lock unit 12b on the assumption that the unlocking conditions are satisfied. [Operation of this Embodiment] The operation of this embodiment will be described with a specific example.

[0053] As shown in the table of FIG. 4, for example, it is assumed that in the building 100, an 80-year-old grandfather, a 78-year-old grandmother, a 45-year-old father, a 44-year-old mother, a 16-year-old eldest son, a 13-year-old eldest daughter, and a 6-year-old second son live. The grandfather and grandmother are dementia patients. The subjects in the specific example are the grandfather, grandmother, and second son. The grip strength of the residents has been measured in advance. The grip strength of the grandfather is 35 kg, the grip strength of the grandmother is 22 kg, the grip strength of the father is 45 kg, the grip strength of the mother is 28 kg, the grip strength of the eldest son is 38 kg, the grip strength of the eldest daughter is 24 kg, and the grip strength of the second son is 9 kg.

[0054] In the specific example, the predetermined operation time is set to 3 seconds. In the specific example, the predetermined operation sequence is set in the order from the first operation unit 13a to the second operation unit 13b. In the specific example, the first pressure is set to 23 kg and the second pressure is set to 30 kg. Therefore, the predetermined pressure range is set to be greater than 23 kg and less than 30 kg. The father, mother, eldest son, and eldest daughter who are non-subjects know the predetermined operation time, the predetermined operation sequence, and the predetermined pressure range.

[0055] The case where the grandfather, who is the subject person, attempts to unlock door 130 will be described. In this case, since the elderly grandfather takes time for the unlocking operation, it is assumed that the unlocking operation time will be 3 seconds or more. Also, the grandfather may perform the unlocking operation in the order from the second operation unit 13b to the first operation unit 13a. Furthermore, since the grandfather, who is a male dementia patient, has difficulty controlling his grip strength, it is assumed that the pressure detected by the pressure sensor 15 when the grandfather holds the inner handle 132 will be 30 kg or more. In this case, since the unlocking conditions are not met, the unlocking of door 130 by the grandfather, who is the subject person, is restricted.

[0056] The case where the grandmother, who is the subject person, attempts to unlock door 130 will be described. In this case, since the elderly grandmother takes time for the unlocking operation, it is assumed that the unlocking operation time will be 3 seconds or more. Also, the grandmother may perform the unlocking operation in the order from the second operation unit 13b to the first operation unit 13a. Furthermore, since the grandmother, who is an elderly woman, has weak grip strength, it is assumed that the pressure detected by the pressure sensor 15 when the grandmother holds the inner handle 132 will be 23 kg or less. In this case, since the unlocking conditions are not met, the unlocking of door 130 by the grandmother, who is the subject person, is restricted.

[0057] The case where the father, who is a non - subject person, attempts to unlock door 130 will be described. In this case, since the father can perform the unlocking operation smoothly, the unlocking operation time will be less than 3 seconds. Also, since the father grasps the predetermined operation sequence, he performs the unlocking operation in the order from the first operation unit 13a to the second operation unit 13b. Furthermore, although the father's grip strength is 30 kg or more, since he can control his grip strength, the pressure detected by the pressure sensor 15 when the father holds the inner handle 132 is greater than 23 kg and less than 30 kg. In this case, since the unlocking conditions are met, the unlocking of door 130 by the father, who is a non - subject person, is not restricted. The same applies to the case where the eldest son, who is a non - subject person, attempts to unlock door 130.

[0058] The case where the mother, who is a non-target person, attempts to unlock door 130 will be described. In this case, since the mother can perform the unlocking operation smoothly, the unlocking operation time will be less than 3 seconds. Also, since the mother is familiar with the predetermined operation sequence, she performs the unlocking operation in the order from the first operation unit 13a to the second operation unit 13b. Furthermore, when the mother grasps the inner handle 132, the pressure detected by the pressure sensor 15 will be greater than 23 kg and less than 30 kg. In this case, since the unlocking conditions are met, the unlocking of door 130 by the mother, who is not the target person, is not restricted. The same applies to the case where the eldest daughter, who is a non-target person, attempts to unlock door 130.

[0059] The case where the second son, who is the target person, attempts to unlock door 130 will be described. In this case, since the second son, who is a child, takes time for the unlocking operation, it is assumed that the unlocking operation time will be 3 seconds or more. Also, as described above, it is assumed that the second son, who is a child, performs the unlocking operation in the order from the second operation unit 13b to the first operation unit 13a. Furthermore, since the second son, who is a child, has a weak grip strength, it is assumed that when the second son grasps the inner handle 132, the pressure detected by the pressure sensor 15 will be 23 kg or less. In this case, since the unlocking conditions are not met, the unlocking of door 130 by the second son, who is the target person, is restricted.

[0060] Thus, when the target person attempts to unlock door 130, since the unlocking conditions are not met, the unlocking of door 130 by the target person is restricted. On the other hand, when a non-target person attempts to unlock door 130, since the unlocking conditions are met, the unlocking of door 130 by the non-target person is not restricted.

[0061] [Advantages of the Present Embodiment] The advantages of the present embodiment will be described. (1) The door unlocking and locking device 10 includes a lock portion 12 that unlocks and locks the door 130, a plurality of operation portions 13 that are provided on the inner surface 131c of the door leaf 131 and where the unlocking and locking operation of the door 130 is performed, and a control portion 16 that controls the unlocking and locking of the door 130 by the lock portion 12. When the unlocking condition is satisfied, the control portion 16 causes the lock portion 12 to unlock the door 130. The unlocking condition includes that the unlocking operation time, which is the time required for the unlocking operations of the plurality of operation portions 13, is less than a predetermined operation time, and that the unlocking operation order, which is the order in which the unlocking operations of the plurality of operation portions 13 are performed, is a predetermined operation order.

[0062] When a target person performs an unlocking operation, it is assumed that the unlocking operation time will be longer than when a non-target person performs the unlocking operation due to reasons such as the operation portion 13 being difficult to reach or the hand strength being weak. Also, when a target person performs an unlocking operation, the unlocking operation order does not necessarily become the predetermined operation order. According to the above configuration, when the unlocking operation time is less than the predetermined operation time and the unlocking operation order is the predetermined operation order, the lock portion 12 unlocks the door 130. Therefore, the unlocking of the door 130 by the target person can be restricted.

[0063] (2) The door unlocking and locking device 10 includes a pressure sensor 15 that is attached to the inner handle 132 provided on the inner surface 131c of the door leaf 131 and detects the pressure when the user grasps the inner handle 132. The above unlocking condition further includes that the pressure detected by the pressure sensor 15 is within a predetermined pressure range.

[0064] When a target person grasps the inner handle 132, it is assumed that the pressure detected by the pressure sensor 15 will be outside the predetermined pressure range due to reasons such as weak grip strength or difficulty in controlling the grip strength. According to the above configuration, in addition to the unlocking operation time being less than the predetermined operation time and the unlocking operation order being the predetermined operation order, when the pressure detected by the pressure sensor 15 satisfies being within the predetermined pressure range, the lock portion 12 unlocks the door 130. Therefore, the unlocking of the door 130 by the target person can be restricted more reliably.

[0065] (3) If the subject is a child or a female dementia patient, it is assumed that the pressure detected by the pressure sensor 15 will be small because the grip strength is weak. If the subject is a male dementia patient, it is assumed that the pressure detected by the pressure sensor 15 will be large because it is difficult to control the grip strength. For this reason, for example, when a predetermined pressure range is set to be less than the second pressure, the unlocking of the door 130 can be restricted when the subject is a male dementia patient, but there is a possibility that the unlocking of the door 130 cannot be restricted when the subject is a child or a female dementia patient. Also, for example, when a predetermined pressure range is set to be greater than the first pressure, the unlocking of the door 130 can be restricted when the subject is a child or a female dementia patient, but there is a possibility that the unlocking of the door 130 cannot be restricted when the subject is a male dementia patient.

[0066] In contrast, in the present embodiment, the predetermined pressure range is set to be greater than the first pressure and less than the second pressure. That is, both the lower limit and the upper limit are set as the predetermined pressure range. For this reason, in both the case where the subject is a child or a female dementia patient and the case where the subject is a male dementia patient, the unlocking of the door 130 by the subject can be restricted. Therefore, the unlocking of the door 130 by the subject can be more appropriately restricted.

[0067] (4) When the unlocking condition is not satisfied, the control unit 16 locks the door 130 by the locking unit 12. Thereby, the door 130 can be surely locked. (5) When the unlocking condition is not satisfied, the control unit 16 disables the operation of the operation unit 13 by the user. Thereby, it is possible to restrict the subject from performing the unlocking operation again.

[0068] (6) When a distress signal is input from the abnormality detection unit 140, the control unit 16 forcibly unlocks the door 130 by the locking unit 12 regardless of whether the unlocking condition is satisfied. According to this configuration, in an emergency, the door 130 is forcibly unlocked by the locking unit 12 regardless of whether the unlocking condition is satisfied. Therefore, in an emergency, the subject can open the door 130 and go outside the building 100.

[0069] (7) The door unlocking and locking device 10 for a door has, as a plurality of operation parts 13, a first operation part 13a arranged above the inner handle 132 and a second operation part 13b arranged below the inner handle 132. When the target person is a child, since the height is low, the second operation part 13b located below the first operation part 13a located above is easier to operate. For this reason, it is assumed that the target person performs the unlocking operation in the order from the second operation part 13b to the first operation part 13a. The predetermined operation order set as the unlocking condition in the present embodiment is the order from the first operation part 13a to the second operation part 13b. Therefore, when the target person is a child, the unlocking of the door 130 by the target person can be more reliably restricted.

[0070] (8) For example, it is conceivable to determine whether or not the user performing the unlocking operation is the target person by face authentication, fingerprint authentication, input of a password, etc. However, in these cases, it is necessary to add relatively large devices such as a camera, a fingerprint authenticator, and a numeric keypad. On the other hand, in the present embodiment, in order to utilize the physical ability and thinking ability of the user, the unlocking of the door 130 by the target person can be restricted without adding a large device. Therefore, it is possible to avoid the design property around the door 130 being impaired by the added device.

[0071] In the present embodiment, the operation detection part 14 is built in the inner handle 132, and the pressure sensor 15 is attached to the back surface of the inner handle 132. Therefore, the design property of the inner handle 132 is maintained and the workability of the door unlocking and locking device 10 is improved.

[0072] (9) The user can select an arbitrary location as the installation location of the control part 16. Therefore, for example, by arranging the control part 16 in the shoe cabinet as in the present embodiment, it is possible to avoid the design property around the door 130 being impaired.

[0073] Since the unlocking and locking of door 130 are performed based on data such as unlocking operation time and pressure, the unlocking of door 130 by the target person can be accurately regulated. <Example of modification> The above embodiment is an exemplification of the forms that the door unlocking / locking device 10 and the building 100 can take, and is not intended to limit the form. The door unlocking / locking device 10 and the building 100 can take forms different from those exemplified in the above embodiment. Examples thereof are forms in which part of the configuration of the embodiment is replaced, changed, or omitted, or forms in which a new configuration is added to the embodiment. Modification examples of the embodiment are shown below.

[0074] · The building 100 is not limited to a residence. The building 100 may be, for example, a nursing facility or a childcare facility. · The door 130 may be provided between two rooms within the building 100. In this case, the inner surface 131c of the door leaf 131 is the surface on the side of the room where the target person is located.

[0075] · The inner handle 132 is not limited to a lever-type handle. The inner handle 132 may be any handle for which a user performs an operation of grasping, such as a door knob. · In the above embodiment, the door unlocking / locking device 10 includes two lock portions 12, but is not limited thereto. The door unlocking / locking device 10 may include one lock portion 12, or may include three or more lock portions 12.

[0076] · In the above embodiment, the door unlocking / locking device 10 includes two operation portions 13 as a plurality of operation portions 13, but is not limited thereto. The door unlocking / locking device 10 may include three or more operation portions 13.

[0077] ·The door unlocking and locking device 10 may not be provided with the pressure sensor 15. In this case, the unlocking conditions include that the unlocking operation time is less than a predetermined operation time and the unlocking operation sequence is a predetermined operation sequence. The unlocking conditions do not include that the pressure detected by the pressure sensor 15 is within a predetermined pressure range. Even in this modified example, at least the same effect as the effect (1) of the above embodiment can be obtained.

[0078] ·The control unit 16 may perform the locking of the door 130 in step S3 or the unlocking of the door 130 in step S5 after collectively performing the determinations in steps S1, S2, and S4.

[0079] ·The predetermined operation sequence set as the unlocking condition is not limited to the order from the first operation unit 13a to the second operation unit 13b, and may be in the order from the second operation unit 13b to the first operation unit 13a. ·Only either the lower limit or the upper limit of the predetermined pressure range set as the unlocking condition may be set. Even in this modified example, at least the same effects as the effects (1) and (2) of the above embodiment can be obtained.

[0080] ·In the above embodiment, the operation detection unit 14 is provided inside the inner handle 132, but it may be provided in the control unit 16. ·When the door unlocking and locking device 10 has three or more operation units 13, the operation detection unit 14 may detect the unlocking operation time as follows.

[0081] For example, the operation detection unit 14 may detect the time required from the first unlocking operation to the second unlocking operation as the unlocking operation time, or may detect the time required from the second unlocking operation to the third unlocking operation as the unlocking operation time.

[0082] For example, the operation detection unit 14 may detect the average of the time required from the first unlocking operation to the second unlocking operation and the time required from the second unlocking operation to the third unlocking operation as the unlocking operation time.

[0083] The operation detection unit 14 may detect, for example, the time required from the first unlocking operation to the third unlocking operation as the unlocking operation time. · When the rotation of the operation unit 13 is locked due to an unauthorized person accidentally performing an operation that does not satisfy the unlocking condition, the door unlocking and locking device 10 may be provided with a reset button so that the lock can be released. The reset button is provided in a less conspicuous part of the door 130.

[0084] · When one of the two operation units 13 is unlocked, the control unit 16 may unlock the corresponding lock unit 12 for the unlocked operation unit 13. Then, when the unlocking condition is satisfied, the control unit 16 may unlock the corresponding lock unit 12 for the other of the two operation units 13. When the unlocking condition is not satisfied, the control unit 16 may not unlock the corresponding lock unit 12 for the other of the two operation units 13 and may lock the corresponding lock unit 12 for one of them.

[0085] This specification discloses the following technology. [Appendix 1] A door unlocking and locking device including a lock unit for unlocking and locking a door, a plurality of operation units provided on the inner surface of the door leaf of the door for performing unlocking and locking operations, and a control unit for controlling the unlocking and locking of the door by the lock unit, wherein the control unit unlocks the door by the lock unit when an unlocking condition including that the unlocking operation time, which is the time required for the unlocking operation of the plurality of operation units, is less than a predetermined operation time and that the unlocking operation order, which is the order in which the unlocking operations of the plurality of operation units are performed, is a predetermined operation order is satisfied.

[0086] [Appendix 2] In the door unlocking and locking device according to Appendix 1, a pressure sensor is provided that is attached to an inner handle provided on the inner surface of the door leaf and detects the pressure when the user grips the inner handle, and the unlocking condition further includes that the pressure detected by the pressure sensor is within a predetermined pressure range.

[0087] [Appendix 3] In the door unlocking and locking device according to Supplementary Note 2, the predetermined pressure range is set to be greater than the first pressure and less than a second pressure that is greater than the first pressure.

[0088] [Supplementary Note 4] In the door unlocking and locking device according to Supplementary Note 1, when the unlocking condition is not satisfied, the control unit locks the door by the locking unit.

[0089] [Supplementary Note 5] In the door unlocking and locking device according to Supplementary Note 1, when the unlocking condition is not satisfied, the control unit disables the operation of the operation unit by the user.

[0090] [Supplementary Note 6] In the door unlocking and locking device according to Supplementary Note 1, when a very signal is input from the abnormality detection unit, the control unit forcibly unlocks the door by the locking unit regardless of whether the unlocking condition is satisfied.

[0091] [Supplementary Note 7] A building including the door unlocking and locking device according to any one of Supplementary Notes 1 to 6.

Explanation of Signs

[0092] 10... Door unlocking and locking device, 12... Locking unit, 13... Operation unit, 15... Pressure sensor, 16... Control unit, 100... Building, 130... Door, 131... Door leaf, 131c... Inner surface, 132... Inner handle, 140... Abnormality detection unit.

Claims

1. A locking unit that unlocks and locks the door, A plurality of operation units provided on the inner surface of the door leaf of the door, where unlocking and locking operations are performed, A control unit that controls the unlocking and locking of the door by the locking unit, A door unlocking and locking device comprising: The control unit unlocks the door by the locking unit when an unlocking condition is satisfied, which includes that the unlocking operation time, which is the time required for the unlocking operation of the plurality of operation units, is less than a predetermined operation time, and that the unlocking operation order, which is the order in which the unlocking operations of the plurality of operation units are performed, is a predetermined operation order. A door unlocking and locking device.

2. Comprising a pressure sensor attached to an inner handle provided on the inner surface of the door leaf, which detects the pressure when the user grasps the inner handle, The unlocking condition further includes that the pressure detected by the pressure sensor is within a predetermined pressure range. The door unlocking and locking device according to Claim 1.

3. The predetermined pressure range is set to be greater than a first pressure and less than a second pressure that is greater than the first pressure. The door unlocking and locking device according to Claim 2.

4. The control unit locks the door by the locking unit when the unlocking condition is not satisfied. The door unlocking and locking device according to Claim 1.

5. The control unit disables the operation of the operation unit by the user when the unlocking condition is not satisfied. The door unlocking and locking device according to Claim 1.

6. The control unit forcibly unlocks the door by the locking unit regardless of whether the unlocking condition is satisfied when an emergency signal is input from an abnormality detection unit. The door unlocking and locking device according to Claim 1.

7. A building comprising the door unlocking and locking device according to any one of Claims 1 to 6.

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