Doors and buildings

Abstract

To provide doors and buildings that offer improved security. [Solution] The door 10 comprises a door frame 11, a door body 31 that can open and close an entrance 10A, and a locking mechanism 41 that can lock the door body 31 when it is closed to the entrance 10A. The locking mechanism 41 comprises a lock body 42 and a locking member 43 that protrudes from the lock body 42 and can engage with the closed door body 31. When one of the directions in which the entrance 10A opens is considered the indoor direction, and the direction opposite to the indoor direction is considered the outdoor direction, the door frame 11 has a portion that overlaps with the closed door body 31 in the indoor direction. The lock body 42 is located in the portion that overlaps with the door body 31 in the indoor direction. The locking member 43 is movable between a locked position that protrudes from the lock body 42 toward the outdoor direction and restricts the movement of the closed door body 31, and an unlocked position that is located toward the indoor direction than the locked position and does not restrict the movement of the door body 31.

Description

Technical Field

[0004] , , , ,

[0005] , , , ,

[0001] The present disclosure relates to doors and buildings.

Background Art

[0002] The door disclosed in Patent Document 1 includes a door frame, a door body, and a key portion. The door frame is arranged along the opening edge of the wall of a building. The door frame is generally in the shape of a square frame. Therefore, the door frame includes a vertical frame portion extending in the vertical direction. The door body is attached to the door frame. The door body can open and close the entrance defined by the door frame. The key portion is assembled to the door body. The key portion includes a locking member. The locking member is movable between a locking position protruding from the key body portion and an unlocking position buried within the key body portion. The key portion locks the door by engaging the locking member in the locking position with the vertical frame portion of the door frame.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the door of Patent Document 1, the door body is arranged on the side of the vertical frame portion. Therefore, the locking member in the locking position protrudes from the door body toward the side of the vertical frame portion. However, in this state, there is a possibility that the locking member can be visually recognized through the gap between the door body and the vertical frame portion.

Means for Solving the Problems

[0005] (1) A door that solves the above problem comprises a door frame body arranged along the opening edge of a building wall, a door body attached to the door frame body and capable of opening and closing an entrance enclosed by the door frame body, and a locking part that can lock the door body to the door frame body in a closed state when the entrance is closed, wherein the locking part comprises a lock body and a locking member that protrudes from the lock body body and is capable of engaging with the door body in the closed state, and when one of the directions in which the entrance opens is set to face indoors and the opposite direction is set to face outdoors, the door frame body has a portion that overlaps with the door body in the closed state in the indoor direction, the lock body body is located in the portion of the door frame body that overlaps with the door body in the indoor direction, and the locking member is movable between a locked position that protrudes from the lock body body toward the outdoor side and restricts the movement of the door body in the closed state and an unlocked position that is located toward the indoor side of the locked position and does not restrict the movement of the door body.

[0006] In this configuration, the door frame has a portion that overlaps with the closed door body in the inward direction. The key body of the lock is located in the portion of the door frame that overlaps with the door body in the inward direction. The locking member of the lock protrudes from the key body and moves in the outward direction, which is opposite to the inward direction. This prevents a gap between the door frame and the door body from opening on the front of the door facing outwards. In this case, it becomes difficult to find the gap between the door frame and the door body from the outside. Consequently, it also becomes difficult to find the locking member protruding outwards from the key body through the gap between the door frame and the door body. Therefore, security is improved.

[0007] (2) In the door described in (1) above, the door frame body comprises a vertical frame portion extending in the vertical direction, the vertical frame portion having a first vertical surface facing the outdoor direction and a housing portion recessed from the first vertical surface toward the indoor direction for housing the key body portion.

[0008] With this configuration, the key body can be concealed in the housing of the vertical frame, making it difficult to find the key body. Therefore, security is further improved.

[0009] (3) In the door described in (2) above, the vertical frame portion is oriented in a direction different from the first vertical surface and has a second vertical surface that faces the front end surface of the door body in the closed state.

[0010] In this configuration, the second vertical surface faces a different direction from the first vertical surface. As a result, the locking member protruding from the first vertical surface of the vertical frame cannot be seen through the gap between the second vertical surface of the vertical frame and the front end surface of the door body. Therefore, security is further improved.

[0011] (4) The door described in (3) above, the door has a projection that protrudes from the front surface of the door body and extends in the vertical direction along the front surface, the vertical frame has a third vertical surface that is located on the opposite side of the first vertical surface with the second vertical surface in between, and faces a different direction from the second vertical surface, and the third vertical surface faces the projection when the door body is in the closed state.

[0012] In this configuration, the gap between the door frame and the door body consists of the gap between the first vertical surface of the vertical frame and the door body, the gap between the second vertical surface of the vertical frame and the front end of the door body, and the gap between the third vertical surface of the vertical frame and the protruding part. This makes it more difficult to find the lock body housed in the housing of the vertical frame. Furthermore, the locking member protruding from the first vertical surface of the vertical frame cannot be seen through the gap between the third vertical surface of the vertical frame and the protruding part. Therefore, security is further improved.

[0013] (5) In the door described in (3) or (4) above, the vertical frame portion has a fourth vertical surface facing the opposite side of the second vertical surface, and the lock portion has a keyhole into which a key for moving the locking member can be inserted, and the keyhole opens in the direction facing the fourth vertical surface.

[0014] In this configuration, the keyhole opens in the direction that the fourth vertical surface of the vertical frame faces. This brings the keyhole and the key body housed in the vertical frame closer together, allowing for a simplified lock structure. Furthermore, since the keyhole is not exposed on the front of the door facing outwards, it becomes more difficult to spot. Consequently, security is improved.

[0015] (6) In the door described in (5) above, the locking mechanism has a thumbturn for moving the locking member, and the keyhole is located on the side of the fourth vertical surface that is on the side of the rotational axis of the thumbturn that is on the side of the outside.

[0016] In this configuration, the keyhole is positioned closer to the door body because it is located on the side of the thumbturn's rotation axis on the fourth vertical surface of the vertical frame that faces outwards. This makes it easier to insert the key into the keyhole. Also, since the keyhole is not exposed on the front of the door facing outwards, it becomes more difficult to find. Therefore, security is improved.

[0017] (7) A building that solves the above problem is equipped with one of the doors described in (1) to (6) above. This configuration improves the security of building doors. [Effects of the Invention]

[0018] The doors and buildings described herein improve the security of building doors. [Brief explanation of the drawing]

[0019] [Figure 1] Figure 1 is a front view of the door as seen from the outside. [Figure 2] Figure 2 is a cross-sectional view of the door along the line 2-2 in Figure 1. [Figure 3] Figure 3 is an enlarged cross-sectional view of the vertical frame and door body shown in Figure 2. [Figure 4] Figure 4 is an enlarged cross-sectional view of the vertical frame and door body in the modified example.

Best Mode for Carrying Out the Invention

[0020] Referring to FIGS. 1 to 3, the door 10 and the building 100 of the present embodiment will be described. The building 100 of the present embodiment is a single-family house. As shown in FIG. 1, the building 100 includes a door 10. The door 10 is a door that partitions the outside and the inside. The door 10 of the present embodiment can be used as, for example, a side door. The door 10 of the present embodiment is a sliding door.

[0021] <Door frame body> As shown in FIG. 2, the door 10 includes a door frame body 11, a door main body 31, and a key portion 41. The door frame body 11 is disposed along the opening edge 102 of the outer wall 101 of the building 100. In the following description, among the directions orthogonal to the ground on which the building 100 is installed, the direction of gravity is taken as the downward direction, and the opposite direction is taken as the upward direction. Also, among the directions parallel to the virtual plane including the opening edge 102, the direction orthogonal to the vertical direction is taken as the left-right direction.

[0022] The door frame body 11 is generally in a substantially rectangular shape that is long in the vertical direction. The door frame body 11 includes one horizontal frame portion (not shown) that extends in the left-right direction, a first vertical frame portion 12 that extends in the vertical direction, and a second vertical frame portion 13 that also extends in the vertical direction. The horizontal frame portion extends along the upper short side of the opening edge 102 of the outer wall 101. The first vertical frame portion 12 and the second vertical frame portion 13 extend along each long side of the opening edge 102. The horizontal frame portion connects the upper end portions of the first vertical frame portion 12 and the second vertical frame portion 13 to each other. In the present embodiment, the area surrounded by the door frame body 11, specifically, the area surrounded by the horizontal frame portion, the first vertical frame portion 12, the second vertical frame portion 13, and the floor surface, is the entrance 10A of the building 100. Hereinafter, as shown in FIG. 2, one of the directions in which the entrance 10A opens is taken as the indoor direction, and the direction opposite to the indoor direction is taken as the outdoor direction. The indoor direction corresponds to the direction facing the inside of the building 100 from the outside through the entrance 10A. The outdoor direction corresponds to the direction facing the outside of the building 100 from the inside through the entrance 10A.

[0023] As shown in Figure 2, when viewed from the outside of the building 100 towards the interior, the first vertical frame section 12 is located to the left of the door frame 11. The first vertical frame section 12 as a whole is a column extending vertically. Also, as shown in Figure 3, the first vertical frame section 12 is roughly L-shaped when viewed in cross-section.

[0024] As shown in Figure 3, the first vertical frame section 12 has a first vertical surface 21, a second vertical surface 22, and a third vertical surface 23. The first vertical surface 21 faces outwards. The second vertical surface 22 is adjacent to the first vertical surface 21. The second vertical surface 22 faces in a direction 90 degrees different from the first vertical surface 21. Together with the first vertical surface 21, the second vertical surface 22 forms the inner surface of an L-shape. The third vertical surface 23 is adjacent to the second vertical surface 22. The third vertical surface 23 is located on the opposite side of the first vertical surface 21, with the second vertical surface 22 in between. The third vertical surface 23 faces in an direction 90 degrees different from the second vertical surface 22. The third vertical surface 23 faces outwards.

[0025] Furthermore, the first vertical frame section 12 has a fourth vertical surface 24 and a fifth vertical surface 25. The fourth vertical surface 24 is adjacent to the third vertical surface 23. The fourth vertical surface 24 is located on the opposite side of the second vertical surface 22, with the third vertical surface 23 in between. The fourth vertical surface 24 faces the opposite side of the second vertical surface 22. The fourth vertical surface 24 faces in a direction 90 degrees different from the first vertical surface 21 and the third vertical surface 23. The fifth vertical surface 25 is adjacent to the first vertical surface 21. The fifth vertical surface 25 is located on the opposite side of the second vertical surface 22, with the first vertical surface 21 in between. The fifth vertical surface 25 faces the opposite side of the fourth vertical surface 24. The fifth vertical surface 25 faces the same side as the second vertical surface 22. The fifth vertical surface 25 faces in a direction 90 degrees different from the first vertical surface 21 and the third vertical surface 23.

[0026] The first vertical frame section 12 has a housing section 16 for housing the key body section 42 of the lock section 41. The housing section 16 is recessed inward from the first vertical surface 21. The housing section 16 is a roughly cylindrical space. The first vertical frame section 12 is also provided with a cylinder mounting hole (not shown) and a thumbturn mounting hole (not shown). The central axis of the cylinder mounting hole is roughly the same as the central axis of the thumbturn mounting hole. The cylinder mounting hole opens on the fourth vertical surface 24. The thumbturn mounting hole opens on the fifth vertical surface 25. The cylinder 44 of the lock section 41 is housed in the cylinder mounting hole. The thumbturn 45 of the lock section 41 is housed in the thumbturn mounting hole. Details of the lock section 41 will be described later.

[0027] As shown in Figure 2, when viewed from the outside of the building 100 towards the interior, the second vertical frame section 13 is located to the right of the door frame 11. The second vertical frame section 13 extends vertically parallel to the first vertical frame section 12, with a gap between them in the left-right direction. The second vertical frame section 13 is roughly rectangular in shape.

[0028] <Door body> As shown in Figure 2, the door body 31 is attached to the door frame 11. The shape of the door body 31 corresponds to the opening shape of the entrance 10A. That is, the door body 31 is a rectangular plate shape in which one side is longer than the other sides adjacent to that side. Therefore, in the door body 31, the direction along the longer side of the door body 31 is the vertical direction.

[0029] The door body 31 can open and close the entrance 10A partitioned by the door frame 11. The door body 31 opens and closes the entrance 10A by moving left and right along the wall surface of the exterior wall 101. The door body 31 has an outdoor side 32, an indoor side 33, a first end surface 34, and a second end surface 35. The outdoor side 32 and the indoor side 33 are the larger surfaces of the outer surface of the door body 31. Therefore, the outdoor side 32 and the indoor side 33 face opposite each other on the door body 31. The first end surface 34 and the second end surface 35 are the surfaces that face left and right among the surfaces sandwiched between the outdoor side 32 and the indoor side 33. Therefore, the first end surface 34 and the second end surface 35 face opposite each other on the door body 31. In addition, the first end surface 34 and the second end surface 35 face in directions 90 degrees different from the outdoor side 32 and the indoor side 33.

[0030] As shown in Figure 3, the first front surface 34 is the surface located on the door edge side in the width direction, which is along the short side of the door body 31. The first front surface 34 approaches the second vertical surface 22 when the door body 31 is closed. As shown in Figure 2, the second front surface 35 is the surface located on the door edge side in the width direction of the door body 31.

[0031] A recessed handle (not shown) is provided on the indoor side 33 of the door body 31. The recessed handle is positioned in a location that does not overlap with the door frame 11 when the door body 31 is closed. The recessed handle corresponds to the indoor handle. As shown in Figure 3, the door body 31 also has an engagement hole 39 into which the locking member 43 of the key part 41, which will be described later, engages. The engagement hole 39 is recessed from the indoor side 33 of the door body 31 toward the outdoors. The engagement hole 39 is a roughly rectangular prism-shaped space. The door body 31 has an engagement part (not shown) within the engagement hole 39 into which the locking member 43 can engage.

[0032] The door 10 is provided with a projection 37 that protrudes from the first front end surface 34 of the door body 31. In this embodiment, the projection 37 is integrally molded with the door body 31. The projection 37 protrudes from the portion of the first front end surface 34 of the door body 31 that is closer to the outdoor side surface 32. The outdoor-facing surface of the projection 37 is flush with the outdoor side surface 32 of the door body 31. The projection 37 extends along the first front end surface 34 over the entire vertical direction of the door body 31. When viewed from the outdoor side of the door 10, the projection 37 covers the entire third vertical surface 23 of the first vertical frame portion 12.

[0033] <Positional relationship between the door frame and the door itself> As shown in Figure 3, when the door body 31 is in the closed position, the door frame 11 has a portion that overlaps the door body 31 in the inward direction. Specifically, the first vertical surface 21 of the first vertical frame portion 12 faces the inward side surface 33 of the closed door body 31. The second vertical surface 22 of the first vertical frame portion 12 faces the first front end surface 34 of the closed door body 31. The third vertical surface 23 of the first vertical frame portion 12 faces the inner surface 38, which is the inward-facing surface of the protruding portion 37, when the door body 31 is in the closed position.

[0034] <Key section> As shown in Figure 2, the locking mechanism 41 allows the door body 31 to be locked in the closed state when the doorway 10A is closed to the door frame 11. The locking mechanism 41 in this embodiment is an electric lock that can be locked and unlocked based on an electromagnetic signal. The locking mechanism 41 in this embodiment is a so-called hook lock. The locking mechanism 41 is assembled above the central part in the vertical direction of the first vertical frame 12. In addition, an auxiliary lock having a structure similar to the locking mechanism 41 in this embodiment is assembled below the central part in the vertical direction of the first vertical frame 12.

[0035] As shown in Figure 3, the locking mechanism 41 comprises a key body 42, a locking member 43, a cylinder 44, and a thumbturn 45. The key body 42 is located in the first vertical frame 12 in the portion that overlaps with the door body 31 in the inward direction. The key body 42 is housed in the housing 16 of the first vertical frame 12. The locking member 43 extends in an arc shape. The locking member 43 can extend and retract from the end face of the key body 42 on the first vertical surface 21 side. The locking member 43 moves in a direction perpendicular to the direction of movement when the door body 31 is opened and closed. Specifically, the locking member 43 is movable between a locked position and an unlocked position. In the locked position, the locking member 43 protrudes from the key body 42 toward the outward direction, thereby engaging with the engagement hole 39 of the door body 31. When the locking member 43 is in the locked position, it restricts the movement of the closed door body 31. In the unlocked position, the locking member 43 is located further inward than in the locked position, and the locking member 43 is disengaged from the engagement hole 39 of the door body 31. When the locking member 43 is in the unlocked state, it does not restrict the movement of the door body 31. When the locking member 43 is in the unlocked state, almost the entire locking member 43 is embedded within the key body 42.

[0036] The cylinder 44 is housed almost entirely within the cylinder mounting hole of the first vertical frame 12. The first end of the cylinder 44 is connected to the key body 42. The second end of the cylinder 44 protrudes from the fourth vertical surface 24 of the first vertical frame 12. The cylinder 44 has a keyhole 44A. The keyhole 44A opens on the second end side of the cylinder 44, facing the direction of the fourth vertical surface 24.

[0037] Furthermore, the thumbturn 45 is for moving the locking member 43. The main body of the thumbturn 45 (not shown) is housed in the thumbturn mounting hole of the first vertical frame 12. The first end of the main body is connected to the key body 42 from the opposite side of the cylinder 44. The second end of the main body is exposed from the fifth vertical surface 25 of the first vertical frame 12. A knob 46 is connected to the second end of the main body. The knob 46 is rotated by a person inside the house when moving the locking member 43 without operation based on an electromagnetic signal.

[0038] Furthermore, the central axis of the keyhole 44A is located on the rotational axis of the thumbturn 45 within the fourth vertical surface 24 of the first vertical frame portion 12. A key can be inserted into the keyhole 44A. The key is used to move the locking member 43 without operation based on electromagnetic signals.

[0039] [Operation of this embodiment] As shown in Figure 2, first, when a person outside opens the door 10, they press the tip surface 40 of the projection 37 on the door edge side of the door body 31 in the direction of arrow A1. This causes the door body 31 to move in the direction of arrow A1, opening the doorway 10A. On the other hand, when a person outside closes the door 10, they press the second tip surface 35 on the door tail side of the door body 31 in the direction of arrow A2. This causes the door body 31 to move in the direction of arrow A2, closing the doorway 10A.

[0040] Furthermore, when a person inside the building opens the door 10, they insert their fingers into the recessed handle on the indoor side 33 of the door body 31 and apply force in the direction of arrow A1. This causes the door body 31 to move in the direction of arrow A1 and open. On the other hand, when a person inside the building closes the door 10, they insert their fingers into the recessed handle and apply force in the direction of arrow A2. This causes the door body 31 to move in the direction of arrow A2 and close.

[0041] The locking and unlocking of the locking mechanism 41 occurs when the door body 31 is closed. For example, when a locking operation is performed on a wireless communication-enabled terminal for the locking mechanism 41, the locking member 43 protrudes from the lock body 42 toward the outside. At this time, the tip of the locking member 43 is inserted into the engagement hole 39 of the door body 31, and the locking member 43 engages with the engagement hole 39. At this point, the locking member 43 moves to the locked position, and the movement of the door body 31 is restricted. On the other hand, when an unlocking operation is performed on a wireless communication-enabled terminal for the locking mechanism 41, the locking member 43 moves toward the inside. At this time, the engagement of the locking member 43 with the engagement hole 39 is released, and the locking member 43 exits the engagement hole 39 and retracts into the lock body 42. At this point, the locking member 43 moves to the unlocked position, and the movement of the door body 31 is no longer restricted.

[0042] When the door body 31 is closed, the gap between the first vertical frame portion 12 of the door frame 11 and the door body 31 opens in the left-right direction of the door 10, rather than towards the outside of the door 10. Therefore, it is difficult for a person outside to find the gap between the first vertical frame portion 12 and the door body 31. Furthermore, as shown in Figure 3, the gap between the first vertical frame portion 12 and the door body 31 consists of a gap S1 between the first vertical surface 21 and the indoor side surface 33 of the door body 31, a gap S2 between the second vertical surface 22 and the first front end surface 34 of the door body 31, and a gap S3 between the third vertical surface 23 and the inner surface 38 of the protruding portion 37. Therefore, even if a person outside can find the gap between the first vertical frame portion 12 and the door body 31, they cannot see the locking member 43 protruding from the first vertical surface 21.

[0043] [Effects of this embodiment] The effects of this embodiment will now be explained. (1) The first vertical frame portion 12 of the door frame body 11 has a portion that overlaps with the door body 31 in the indoor direction when it is closed. The key body portion 42 of the lock portion 41 is located in the portion of the first vertical frame portion 12 that overlaps with the door body 31 in the indoor direction. The locking member 43 of the lock portion 41 protrudes from the key body portion 42 and moves in the outdoor direction, which is the opposite direction to the indoor direction. As a result, the gap between the first vertical frame portion 12 and the door body 31 does not open on the outdoor side of the door 10. In this case, it becomes difficult to find the gap between the first vertical frame portion 12 and the door body 31 from the outdoor side. The gap between the first vertical frame portion 12 and the door body 31 consists of a gap S1 between the first vertical surface 21 and the indoor side surface 33 of the door body 31, a gap S2 between the second vertical surface 22 and the first front end surface 34 of the door body 31, and a gap S3 between the third vertical surface 23 and the inner surface 38 of the protruding portion 37. As a result, even if a gap S3 is found between the third vertical surface 23 and the inner surface 38 of the protruding portion 37, the locking member 43 protruding from the first vertical surface 21 cannot be seen through that gap S3. In this case, it is difficult to destroy the locking member 43, and therefore the lock is difficult to release. Thus, security is improved.

[0044] (2) In this embodiment, the gap between the first vertical frame portion 12 and the door body 31 does not open to the exterior side of the door 10, thus improving the aesthetic appearance of the door 10. Moreover, since the first vertical frame portion 12 has a portion that overlaps with the door body 31 in the interior direction when it is closed, the first vertical frame portion 12 can be concealed by the door body 31. This also improves the aesthetic appearance of the door 10.

[0045] (3) Since the door body 31 of this embodiment is a sliding door, the outdoor handle can be omitted. Furthermore, by housing the key body 42 in the housing portion 16 of the first vertical frame portion 12, the door body 31 does not need to be provided with the key body 42 or the locking member 43. In other words, the key body 42 and the locking member 43 are not exposed on the outdoor side surface 32 of the door body 31. For this reason, for example, the entire outdoor side surface 32 can be used as the design surface of the door body 31.

[0046] (4) In this embodiment, the gap between the door frame 11 and the door body 31 consists of gap S1, gap S2, and gap S3, which makes it easier to suppress the airflow within the gap. This makes it easier to improve smoke and fire prevention performance, airtightness performance, and sound insulation performance.

[0047] <Example of changes> The above embodiments are illustrative of possible forms of the door 10 and the building 100, and are not intended to limit their forms. The door 10 and the building 100 may take forms different from those illustrated in the above embodiments. Examples include forms in which some of the configurations of the embodiments are replaced, modified, or omitted, or forms in which new configurations are added to the embodiments. Modifications of the embodiments are shown below.

[0048] Door 10 may be used in ways other than as a back door, such as as a front door. The door body 31 may be a hinged door. Even if the door body 31 is a hinged door, the door body 31 can be locked if the locking mechanism 41 is a latch lock.

[0049] In the above embodiment, the key body portion 42 of the key portion 41 was housed within the housing portion 16 of the first vertical frame portion 12, but the embodiment is not limited to this. The key body portion 42 may be exposed from the first vertical frame portion 12.

[0050] • In the above embodiment, the locking member 43 was a hook that engaged with the engagement hole 39, but it is not limited to this. The locking member 43 may be a simple rod-shaped member that does not have a hook into the engagement hole 39.

[0051] The first vertical frame portion 12 does not necessarily have a second vertical surface 22 that faces the first front end surface 34 of the closed door body 31, nor a third vertical surface 23 that faces the inner surface 38 of the protruding portion 37. The door 10 does not necessarily have to have a protruding portion 37 that extends from the first front end surface 34 of the door body 31.

[0052] As shown in Figure 4, the keyhole 44A and cylinder 44 may be located on the side of the rotation axis C1 of the thumbturn 45 on the fourth vertical surface 24 that is on the side facing outwards. In this case, the keyhole 44A is positioned closer to the outdoor side surface 32 of the door body 31, making it easier to insert the key into the keyhole 44A. Even if the keyhole 44A is not on the rotation axis C1, it is sufficient if the movement when the key is inserted into the keyhole 44A and rotated is transmitted to the key body 42 by a mechanical mechanism such as a known gear mechanism or link mechanism.

[0053] The electric lock mechanism 41 does not necessarily have to have a keyhole 44A and a cylinder 44. In this case, the presence of the lock mechanism 41 becomes completely invisible from the outside, thus improving security.

[0054] Furthermore, the locking mechanism 41 does not have to be an electric lock. If the locking mechanism 41 is to be locked and unlocked by a mechanical mechanism instead of an electric lock, a keyhole 44A, cylinder 44, and thumbturn 45 will be required.

[0055] In the above embodiment, the locking mechanism 41 was incorporated into the first vertical frame portion 12 of the door frame 11, but it is not limited to this. The locking mechanism 41 may also be incorporated into the upper horizontal frame portion, which is a horizontal frame portion connecting the upper ends of the first vertical frame portion 12 and the second vertical frame portion 13. Alternatively, the door frame 11 may be provided with a lower horizontal frame portion connecting the lower ends of the first vertical frame portion 12 and the second vertical frame portion 13, and the locking mechanism 41 may be incorporated into the lower horizontal frame portion.

[0056] In the above embodiment, an auxiliary lock having a structure similar to that of the key portion 41 was assembled to the first vertical frame portion 12, but the invention is not limited to this. The auxiliary lock may be assembled to multiple locations on the door frame body 11. Furthermore, the auxiliary lock may be omitted.

[0057] An outdoor handle may be provided on the outdoor side 32 of the door body 31. The outdoor handle may be, for example, a bar-type handle, a doorknob, or a recessed handle.

[0058] The indoor handle is not limited to a recessed handle. For example, the indoor handle could be a bar-type handle or a doorknob. Building 100 is not limited to detached houses. Building 100 may also be apartment buildings, commercial facilities, public facilities, etc.

[0059] <Note> This specification discloses the following technologies: [Note 1] A door comprising: a door frame positioned along the edge of an opening in the wall of a building; a door body attached to the door frame and capable of opening and closing an entrance enclosed by the door frame; and a locking mechanism that can lock the door body to the door frame in a closed state, wherein the locking mechanism comprises a key body and a locking member that protrudes from the key body and is capable of engaging with the closed door body, and when one of the directions in which the entrance opens is an indoor direction facing indoors, and the opposite direction is an outdoor direction facing outdoors, the door frame has a portion that overlaps with the closed door body in the indoor direction, the key body is located in the portion of the door frame that overlaps with the door body in the indoor direction, and the locking member is movable between a locked position in which it protrudes from the key body toward the outdoor direction and restricts the movement of the closed door body, and an unlocked position located toward the indoor direction than the locked position and does not restrict the movement of the door body.

[0060] [Note 2] In the door described in Appendix 1, the door frame comprises a vertical frame portion extending in the vertical direction, the vertical frame portion having a first vertical surface facing the outdoor direction and a housing portion recessed from the first vertical surface toward the indoor direction for housing the key body portion.

[0061] [Note 3] In the door described in Appendix 2, the vertical frame portion is oriented in a direction different from the first vertical surface and has a second vertical surface that faces the front end surface of the door body in the closed state.

[0062] [Note 4] In the door described in Appendix 3, the door body has a projection that protrudes from the front end surface and extends vertically along the front end surface, the vertical frame has a third vertical surface that is located on the opposite side of the first vertical surface with the second vertical surface in between, and faces a different direction from the second vertical surface, and the third vertical surface faces the projection when the door body is in the closed state.

[0063] [Note 5] In the door described in Appendix 4, the vertical frame portion has a fourth vertical surface facing the opposite side from the second vertical surface, and the lock portion has a keyhole into which a key for moving the locking member can be inserted, and the keyhole opens in the direction facing the fourth vertical surface.

[0064] [Note 6] In the door described in Appendix 5, the locking mechanism has a thumbturn for moving the locking member, and the keyhole is located on the side of the fourth vertical surface that is closer to the outside than the rotational axis of the thumbturn.

[0065] [Note 7] A building equipped with a door as described in any one of the appendices 1 to 6. [Explanation of Symbols]

[0066] 10...Door, 10A...Entrance / Exit, 11...Door frame, 12...First vertical frame section, 16...Accommodation section, 21...First vertical surface, 22...Second vertical surface, 23...Third vertical surface, 24...Fourth vertical surface, 31...Door body, 34...First end surface 34, 37...Protruding part, 41...Key section, 42...Key body section, 43...Locking member, 44A...Keyhole, 45...Thumbturn, 100...Building, 101...Exterior wall, 102...Opening edge, C1...Rotation center axis.

Claims

1. A door frame positioned along the edge of an opening in the wall of a building, A door body attached to the aforementioned door frame, which is capable of opening and closing the doorway enclosed by the door frame, The door frame is equipped with a locking mechanism that allows the door body to be locked in a closed state, with the door opening closed. The aforementioned key part is, The key body and The locking member protrudes from the key body and is capable of engaging with the door body in the closed state, When one of the directions in which the aforementioned entrance opens is defined as the indoor direction, facing the interior, and the direction opposite to the indoor direction is defined as the outdoor direction, The door frame has a portion that overlaps with the door body in the closed state in the direction of the interior, The key body is located in the door frame in the portion that overlaps with the door body in the direction of the interior. The locking member is The lock is movable between a locked position, where it protrudes from the lock body toward the outside and restricts the movement of the door body in the closed state, and an unlocked position, where it is located toward the inside of the door body than the locked position and does not restrict the movement of the door body. door.

2. The aforementioned door frame body includes vertical frame portions extending in the vertical direction, The vertical frame portion has a first vertical surface facing the outdoor direction and a housing portion that is recessed from the first vertical surface toward the indoor direction and houses the key body portion. The door according to claim 1.

3. The aforementioned vertical frame portion is oriented in a direction different from the first vertical surface and has a second vertical surface that faces the front end surface of the door body in the closed state. The door according to claim 2.

4. The door body has a protruding portion that extends from the front end surface and along the front end surface in the vertical direction, The aforementioned vertical frame portion is It has a third vertical surface located on the opposite side of the first vertical surface, with the second vertical surface in between, and facing a different direction from the second vertical surface. The third vertical surface faces the protrusion when the door body is in the closed position. The door according to claim 3.

5. The aforementioned vertical frame portion has a fourth vertical surface facing the opposite side from the second vertical surface, The key portion has a keyhole into which a key for moving the locking member can be inserted, and the keyhole opens in the direction in which the fourth vertical surface faces. The door according to claim 4.

6. The key portion has a thumbturn for moving the locking member, The keyhole is located on the side of the fourth vertical surface that is on the side of the rotational axis of the thumbturn that is on the side of the outside. The door according to claim 5.

7. A building comprising a door as described in any one of claims 1 to 6.

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