Doors and windows

Abstract

To improve the design flexibility of the exterior side of doors and windows. [Solution] The door comprises a door frame, a door body, and an electric opening and closing device. The door body is installed inside the door frame so as to be openable and closable. The electric opening and closing device is configured to allow the door body to be opened and closed electrically. At least on the exterior side of the door body, there is no door handle for manually opening the door body.

Description

Technical Field

[0001] The present disclosure relates to a fitting including a door frame and a door body provided inside the door frame so as to be openable and closable.

Background Art

[0002] Normally, an outdoor handle for manually opening and closing the door body from the outdoor side and an indoor handle for manually opening and closing the door body from the indoor side are attached to the fitting.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present disclosure developers are promoting the development of fittings with excellent design properties. In particular, the aesthetics of the outdoor side of the fitting are important. Therefore, it is preferable that the degree of freedom in design of the outdoor side of the fitting is high.

[0005] The present disclosure has been made in view of the above circumstances, and an object thereof is to improve the degree of freedom in design of the outdoor side of the fitting.

Means for Solving the Problems

[0006] The fitting of the present disclosure is a fitting including a door frame and a door body provided inside the door frame so as to be openable and closable, comprising an electric opening and closing device configured to be able to open and close the door body electrically, wherein at least on the outdoor side of the door body, a door handle for manually opening the door body is not attached.

Brief Description of the Drawings

[0007] [Figure 1] This is a view of the door / window of the first embodiment from the outside. [Figure 2] This is a view of the door / window from the inside. [Figure 3] This figure shows a cross-section of the Fg3-Fg3 line in Figure 2. [Figure 4] This figure shows a cross-section of the Fg4-Fg4 line in Figure 3. [Figure 5] Figure 3 shows a cross-section of the Fg5-Fg5 line. [Figure 6] This figure shows a cross-section of the Fg6-Fg6 line in Figure 2. [Figure 7] This is a perspective view showing the back panel. [Figure 8] This is a perspective view showing the state after the resin material has been removed from the state shown in Figure 7. [Figure 9] This is a perspective view of the back panel from a different angle than in Figure 7. [Figure 10] This is a perspective view showing the state after the resin material has been removed from the state shown in Figure 9. [Figure 11] This is a side view showing the handle on the interior side. [Figure 12] This is a top cross-sectional view showing the box lock and its surroundings according to the second embodiment. [Figure 13] This is a view of the door and window of the third embodiment from the outside. [Figure 14] This is a view of the door / window from the inside. [Figure 15] This figure shows a cross-section of the Fg15-Fg15 line in Figure 14. [Figure 16] This is a top cross-sectional view showing the box lock and its surroundings according to the fourth embodiment. [Figure 17] This is a view of the entrance / exit of the fifth embodiment as seen from the outside. [Modes for carrying out the invention]

[0008] The embodiments of this disclosure will be described below with reference to the drawings. However, this disclosure is not limited in any way to the embodiments described below, and may be implemented with appropriate modifications without departing from the spirit of this disclosure.

[0009] [First Embodiment] As shown in FIG. 1, the fitting 100 includes a door frame 10, a sleeve portion 20, and a door body 60.

[0010] Hereinafter, as shown in FIG. 6, the thickness direction of the door body 60 is referred to as the "door thickness direction Y". Further, the side from the outdoor side to the indoor side in the door thickness direction Y is referred to as the "indoor side Y-", and the side from the indoor side to the outdoor side in the door thickness direction Y is referred to as the "outdoor side Y+". Further, hereinafter, the width direction of the door body 60 is referred to as the "door width direction X". Further, the side from the door tip to the door butt of the door body 60 in the door width direction X is referred to as the "door butt side X-", and the side from the door butt to the door tip of the door body 60 in the door width direction X is referred to as the "door tip side X+".

[0011] As shown in FIG. 2, the fitting 100 is configured to be locked and unlocked when the door body 60 is closed. Hereinafter, the state in which the fitting 100 is locked is referred to as the "locked state". In addition, the positional relationship in the following description is the positional relationship when viewed in the locked state unless otherwise specified.

[0012] The end portion on the door butt side X- of the door body 60 is rotatably attached to the door frame 10 via a hinge or the like. Therefore, the door body 60 is provided inside the door frame 10 so as to be openable and closable. The sleeve portion 20 is provided on the door tip side X+ of the door body 60 inside the door frame 10.

[0013] As shown in FIG. 6, the door body 60 includes an outdoor side surface material 63 and an indoor side surface material 67 arranged side by side in the door thickness direction Y. Further, as shown in FIG. 2, the door body 60 includes a door butt side vertical frame 65a, an upper frame 65b, a door tip side vertical frame 65c, and a lower frame 65d. The door butt side vertical frame 65a extends in the vertical direction at the end portion on the door butt side X- of the door body 60. The upper frame 65b extends in the door width direction X at the upper end portion of the door body 60. The door tip side vertical frame 65c extends in the vertical direction at the end portion on the door tip side X+ of the door body 60. The lower frame 65d extends in the door width direction X at the lower end portion of the door body 60.

[0014] As shown in Figure 6, a strike plate 662 and a sill plate 667 are provided at the leading edge X+ end of the door body 60.

[0015] As shown in Figure 3, the door 100 includes a box lock 30 and an electric locking / unlocking device 40 within the side section 20. The box lock 30 includes a locking / unlocking mechanism 35 and a box body 31 that houses the locking / unlocking mechanism 35. The locking / unlocking mechanism 35 is configured to lock and unlock the door 100 when the door body 60 is closed.

[0016] Specifically, the locking / unlocking mechanism 35 includes a rotatable rotating part 354 and a locking / unlocking part 356 that switches between locking and unlocking in conjunction with the rotation of the rotating part 354. An outdoor opening 313 is provided on the outdoor Y+ surface of the box body 31 to allow a cylinder to be connected to the rotating part 354 of the locking / unlocking mechanism 35. An indoor opening 317 is provided on the indoor Y- surface of the box body 31 to allow a thumbturn 47 to be connected to the rotating part 354 of the locking / unlocking mechanism 35.

[0017] The electric locking / unlocking device 40 is configured to allow the locking / unlocking mechanism 35 to be operated electrically. In this embodiment, the electric locking / unlocking device 40 is located inside the thumbturn 47, which will be described later. That is, the electric locking / unlocking device 40 is part of the thumbturn 47, and the thumbturn 47 is an electric thumbturn. However, instead, the electric locking / unlocking device 40 may be located, for example, inside the box body 31. That is, the electric locking / unlocking device 40 is part of the box lock 30, and the box lock 30 may be an electric box lock.

[0018] As shown in Figure 2, the joinery 100 is equipped with an electric opening and closing device 90. This electric opening and closing device 90 is configured to allow the door body 60 to be opened and closed electrically. Specifically, the electric opening and closing device 90 of this embodiment is configured such that an electric opener for electrically opening the door body 60 and an electric closer for electrically closing the door body 60 are integrally provided. However, instead, the electric opening and closing device 90 may also include an electric opener and an electric closer provided separately.

[0019] With the above configuration, the door / window 100 is configured to be automatically lockable and unlockable, and automatically openable and closable.

[0020] Specifically, as shown in Figure 1, for example, an authentication device 25 is installed on the exterior side Y+ of the door 100. When the authentication device 25 authenticates that the person on the exterior side Y+ of the door 100 is a registered resident or other person, the electric locking / unlocking device 40 automatically unlocks the door 100, and then the electric opening / closing device 90 automatically opens the door body 60. This allows the person on the exterior side Y+ of the door 100 to enter. After that, the electric opening / closing device 90 automatically closes the door body 60, and then the electric locking / unlocking device 40 automatically locks the door 100.

[0021] For example, on the interior side Y- of the door 100 shown in Figure 2, there is a switch (not shown). When this switch is pressed by a person inside the room, the electric locking / unlocking device 40 automatically unlocks the door 100, and then the electric opening / closing device 90 automatically opens the door body 60. This allows the person inside the room to exit. After that, the electric opening / closing device 90 automatically closes the door body 60, and then the electric locking / unlocking device 40 automatically locks the door 100.

[0022] However, instead of the above, for example, the electric locking / unlocking device 40 may be configured to lock and unlock the door 100 and the electric opening / closing device 90 may be configured to open and close the door body 60 based on the operation of a remote control or the like.

[0023] Based on the above, the door / window fixture 100 shown in Figure 1 basically does not require a cylinder, thumbturn, exterior handle, or interior handle.

[0024] However, in the event of an emergency such as a power outage, a thumbturn 47 and an indoor handle 87 are provided on the indoor side Y- of the door 100, as shown in Figure 2, so that the door can be manually unlocked and opened from the indoor side Y-. On the other hand, as shown in Figure 1, neither a cylinder nor an outdoor handle is provided on the outdoor side Y+ of the door 100, from the standpoint of design and other considerations.

[0025] In this embodiment and the following embodiments, "cylinder" refers to a mechanism for manually operating the locking / unlocking mechanism 35 from the outside Y+ using a key. "Thumbturn" refers to a mechanism for manually operating the locking / unlocking mechanism 35 from the inside Y-. "Outside handle" refers to a handle for manually opening and closing the door body 60 from the outside Y+. "Inside handle" refers to a handle for manually opening and closing the door body 60 from the inside Y-. Note that "outside handle" and "inside handle" may be read as "door handle".

[0026] Next, the first problem to be solved in this embodiment will be described. As mentioned above, in this embodiment, as shown in Figure 3, there is no cylinder. As a result, if it remains as is, that is, without the shielding plate 38 shown in Figure 3 which will be described later, the part of the rotating part 354 of the locking / unlocking mechanism 35 that is supposed to connect to the cylinder will be exposed to the outside Y+ by the outside opening 313 of the box body 31. As a result, if the part of the sleeve 20 that is located outside Y+ of the box lock 30 is destroyed, it will be possible to access the part of the rotating part 354 of the locking / unlocking mechanism 35 that is supposed to connect to the cylinder from the outside Y+ of the sleeve 20 using a jig or the like. As a result, the lock will be easily pried open.

[0027] To solve this problem, the door 100 of this embodiment is equipped with a shielding plate 38 as shown in Figure 3. As shown in Figure 5, this shielding plate 38 is attached to the exterior Y+ surface of the box body 31 so as to cover the exterior opening 313. As a result, as shown in Figure 5, the shielding plate 38 overlaps the locking / unlocking mechanism 35 when viewed from the exterior Y+. This shielding plate 38 makes it difficult to pry open the lock.

[0028] Next, a second problem to be solved in this embodiment will be described. As described above, as shown in Figure 3, a cylinder is not provided in this embodiment. Therefore, the thumbturn 47 cannot be fixed to the cylinder 43 while connected to the locking / unlocking mechanism 35. Consequently, in this state, the thumbturn 47 cannot be fixed to the box lock 30.

[0029] To solve this problem, in this embodiment, the thumbturn 47 is fixed to the shielding plate 38, rather than to the cylinder, while connected to the locking / unlocking mechanism 35. Therefore, as in this embodiment, the thumbturn 47 can be fixed to the box lock 30 without any problems even when there is no cylinder.

[0030] Next, I will explain the third problem that needs to be solved in this embodiment. As mentioned above, as shown in Figure 1, the door body 60 in this embodiment does not have an exterior handle attached. Therefore, the interior handle 87 shown in Figure 2 cannot be fixed to the exterior handle. As a result, the interior handle 87 cannot be fixed to the door body 60 in this state.

[0031] To solve this problem, as shown in Figure 2, the joinery 100 of this embodiment is equipped with a backing plate 70 inside the door body 60. The interior handle 87 is fixed to this backing plate 70. Therefore, as in this embodiment, even if there is no exterior handle, the interior handle 87 can be fixed to the door body 60 without any problems.

[0032] Next, the shielding plate 38 shown in Figure 5 will be described in more detail. This shielding plate 38 is made of metal.

[0033] Multiple projections 318 are provided on the exterior Y+ surface of the box body 31, projecting outwards Y+. A hole 381 is provided in the shielding plate 38 for each of these projections 318. The shielding plate 38 is positioned in the vertical direction and the door width direction X by the engagement of these multiple projections 318 and the holes 381.

[0034] As shown in Figure 4, the interior Y- side of the box body 31 is provided with an elongated hole f1a extending in the vertical direction. As shown in Figure 5, the exterior Y+ side of the box body 31 is also provided with an elongated hole f1b extending in the vertical direction. The shielding plate 38 is provided with a hole f1c. The shielding plate 38 is fastened to the box body 31 by fasteners F1 that pass through these elongated holes f1a, f1b and hole f1c. More specifically, for example, the fasteners F1 are male screws, and the holes f1c in the shielding plate are female screws. The fasteners F1 pass through the elongated holes f1a and f1b in the box body 31 and are screwed into the holes f1c in the shielding plate 38. However, instead, the fasteners F1 may be screws, and the holes f1c in the shielding plate 38 may be simple holes other than female screws. In this way, the shielding plate 38 is fixed to the box body 31.

[0035] As shown in Figure 5, when viewed from the outside Y+, multiple holes f2 are provided in the portion of the shielding plate 38 that overlaps with the outside opening 313. As shown in Figure 3, fasteners F2, which are originally used to fix the thumbturn 47 to the cylinder, or slightly shorter fasteners, are fastened to these holes f2. More specifically, for example, the fasteners F2 are male screws, and the holes f2 in the shielding plate 38 are female screws. However, alternatively, the fasteners F2 may be screws, and the holes f2 in the shielding plate 38 may be simple holes other than female screws. In this way, the thumbturn 47 is fixed to the shielding plate 38 while connected to the locking / unlocking mechanism 35.

[0036] Next, we will explain the back plate 70 shown in Figure 2 in more detail. As shown in Figure 2, there is one back plate 70 each on the upper and lower rear sides of the indoor handle 87 when viewed from the indoor side Y-.

[0037] As shown in Figure 6, each backing plate 70 is provided on the inside of the door body 60, that is, between the exterior surface material 63 and the interior surface material 67. The backing plate 70 comprises an interior metal portion 77, a connecting portion 75, and an exterior metal portion 73. As shown in Figure 6, the interior metal portion 77 extends along the interior surface material 67. The exterior metal portion 73 extends along the exterior surface material 63. The connecting portion 75 connects the end of the exterior metal portion 73 on the door edge side X+ to the end of the interior metal portion 77 on the door edge side X+. Therefore, the backing plate 70 has an opening on the door tail side X-.

[0038] As shown in Figure 7, the backing plate 70 further comprises an indoor-side Y- resin material 78 and an outdoor-side Y+ resin material 72. In this embodiment, there are two indoor-side Y- resin materials 78 and one outdoor-side Y+ resin material 72, but there may be only one or three or more indoor-side Y- resin materials 78, or two or more outdoor-side Y+ resin materials 72. Each of these resin materials 78, 72 extends in the vertical direction and the door width direction X.

[0039] The resin material 78 on the indoor side Y- is attached to the indoor side Y- surface of the indoor side portion 77. Specifically, as shown in Figure 8, the indoor side portion 77 is provided with multiple elongated holes f3 extending in the door width direction X. As shown in Figure 9, the resin materials 78 are attached to the indoor side portion 77 by engaging projections F3 provided on each resin material 78 on the indoor side Y- with their respective elongated holes f3. Similarly, the resin material 72 on the outdoor side Y+ is attached to the outdoor side Y+ surface of the outdoor side portion 73. Specifically, as shown in Figure 10, the outdoor side portion 73 is also provided with multiple elongated holes f6 extending in the door width direction X. As shown in Figure 6, the resin materials 72 are attached to the outdoor side portion 73 by engaging projections F6 provided on each resin material 72 on the outdoor side Y+ with their respective elongated holes f6. As shown in Figures 7 and 9, notches 785 and 725 are provided in the vertical center of each resin material 78 and 72. The hole f7a in the indoor side 77 shown in Figure 7, which will be described later, is exposed by this notch 785.

[0040] As shown in Figure 7, a hole f5 is provided in the connecting portion 75. As shown in Figure 6, the connecting portion 75 is fixed to the door-side core material 68, which extends vertically along the door-side vertical frame 65c, by a fastening material F5 that passes through the hole f5. The fastening material F5 is a screw or bolt, etc.

[0041] As shown in Figure 7, the backing plate 70 described above is divided into an indoor backing plate 70i and an outdoor backing plate 70o. The indoor backing plate 70i includes an indoor Y- resin material 78, an indoor portion 77, and an indoor portion 75i of the connecting portion 75 as part of the connecting portion 75. On the other hand, the outdoor backing plate 70o includes an outdoor portion 75o of the connecting portion 75 as the part of the connecting portion 75 other than the indoor portion 75i, an outdoor portion 73, and an outdoor Y+ resin material 72. The outdoor Y+ portion of the indoor portion 75i of the connecting portion and the indoor Y- portion of the outdoor portion 75o of the connecting portion are overlapped in the door width direction X.

[0042] As shown in Figure 6, one of the connecting section's interior side portion 75i and the connecting section's exterior side portion 75o is provided with an elongated hole f4b extending in the door width direction X. The other of the connecting section's interior side portion 75i and the connecting section's exterior side portion 75o is provided with a hole f4a communicating with the elongated hole f4b. The connecting section's interior side portion 75i and the connecting section's exterior side portion 75o are connected to each other by fasteners F4 passing through the elongated hole f4b and the hole f4a. Note that there are two of each of these elongated holes f4b, holes f4a, and fasteners F4, spaced apart in the vertical direction, as shown in the fasteners F4 in Figure 7. In this way, the interior side back plate 70i and the exterior side back plate 70o are connected to each other. Each fastener F4 is a screw or bolt. The dimension of the back plate 70 in the door thickness direction Y can be adjusted within the range of the elongated hole f4 shown in Figure 6.

[0043] As shown in Figure 7, the connecting portion 75 is provided with a bypass portion 756. The bypass portion 756 extends toward the door tail side X-, extends toward the exterior side Y+ from its tip, and extends toward the door edge side X+ from its tip. As shown in Figure 6, a trapdoor 667 is provided inside the bypass portion 756.

[0044] As shown in Figure 8, an inclined portion 74 is provided between the outdoor portion 73 and the connecting portion 75, extending in a direction oblique to both the door width direction X and the door thickness direction Y. A projection 754 is provided in the portion of the connecting portion 75 that is located on the outdoor side Y+ from the hole f5, projecting outwards Y+. As shown in Figure 10, the inclined portion 74 is provided with an opening 744 for forming the projection 754.

[0045] As shown in Figure 11, the upper and lower parts of the indoor handle 87 are provided with bases 86 that protrude outwards Y+. As shown in Figure 6, these bases 86 are fixed to the indoor side portion 77 of the backing plate 70 by fasteners F7 such as screws or bolts. Specifically, for example, a boss 85 is attached to the base 86 by fasteners F8 and F9 such as screws or bolts. The boss 85 has a hole f7c. The surface material 67 has a hole f7b that communicates with the hole f7c of the boss 85. The hole f7b of the surface material 67 communicates with a hole f7a of the indoor side portion 77 of the backing plate 70 through a notch 785 in the resin material 78. The bases 86 are fixed to the indoor side portion 77 of the backing plate 70 by the aforementioned fasteners F7 passing through these holes f7a, f7b, and f7c. In this way, the indoor handle 87 is fixed to the backing plate 70.

[0046] The configuration and effects of this embodiment are summarized below.

[0047] As shown in Figure 3, the door 100 is equipped with an electric locking / unlocking device 40. This eliminates the need for a cylinder. This improves the design freedom of the exterior side Y+ of the door 100. For example, the exterior side Y+ of the door 100 shown in Figure 1 can be made into a clean design with fewer protruding structures.

[0048] However, simply removing the cylinder would make the lock easier to pry open, as mentioned in the first problem above. In this embodiment, as shown in Figure 5, a shielding plate 38 is provided in a position that overlaps with the locking / unlocking mechanism 35 when viewed from the outside Y+. This shielding plate 38 makes it difficult to pry open the lock. Moreover, as shown in Figure 1, the absence of the cylinder, which is the original target for prying, also makes it difficult to pry open the lock.

[0049] As described above, according to this embodiment, by eliminating the cylinder and providing the shielding plate 38, the design freedom of the exterior Y+ of the door 100 can be improved without making the lock easier to pry open.

[0050] The locking / unlocking mechanism 35 shown in Figure 3 is housed inside the box body 31. As shown in Figure 5, the box body 31 is provided with an outdoor opening 313 that exposes the locking / unlocking mechanism 35 to the outdoor side Y+. This outdoor opening 313 is originally intended to allow a cylinder to be connected to the locking / unlocking mechanism 35, and is unnecessary in this embodiment. The shielding plate 38 is attached to the box body 31 so as to cover this outdoor opening 313. Therefore, a standard box lock 30, that is, a box lock 30 with a cylinder that can be connected, can be used as is or without significant structural modifications.

[0051] As shown in Figure 3, the thumbturn 47 is fixed to the shielding plate 38, not to the cylinder, while connected to the locking / unlocking mechanism 35. Therefore, even in the absence of a cylinder as in this embodiment, the thumbturn 47 can be attached to the locking / unlocking mechanism 35 without any problems.

[0052] As shown in Figure 1, a side panel 20 is provided on the side of the door body 60. A box lock 30 and a shielding plate 38 are provided within the side panel 20. Therefore, the thumbturn 47 shown in Figure 2 can be placed on the side panel 20 instead of the door body 60. This improves the aesthetic design of the interior side Y- of the joinery 100.

[0053] As shown in Figure 2, the door 100 is equipped with an electric opening and closing device 90. Therefore, as shown in Figure 1, the exterior handle can be eliminated. This improves the design freedom of the exterior Y+ of the door 100. For example, the exterior Y+ of the door 100 can have a clean design with fewer protruding structures.

[0054] While the door 100 does not have an exterior handle, as shown in Figure 2, it does have an interior handle 87. Therefore, even in emergencies such as power outages, the door 100 can be opened manually from the interior Y-. In addition, the door body 60 can be closed manually from the interior Y- in case of strong winds or for security purposes.

[0055] As shown in Figure 2, a backing plate 70 is provided inside the door body 60. The interior handle 87 is attached to the door body 60 by being fixed to this backing plate 70, rather than to the exterior handle. Therefore, even in the case of not having an exterior handle, as in this embodiment, the interior handle 87 can be attached to the door body 60 without any problems.

[0056] As shown in Figure 6, the indoor portion 77 of the backing plate 70 extends along the indoor surface material 67. The outdoor portion 73 extends along the outdoor surface material 63. The connecting portion 75 connects the door-edge side X+ end of the indoor portion 77 to the door-edge side X+ end of the outdoor portion 73. As a result, the backing plate 70 opens toward the door-end side X-. By shaping the backing plate 70 to conform to the inside of the door body 60 in this way, the backing plate 70 is less likely to curl up when the door body 60 is opened and closed manually using the indoor handle 87.

[0057] Furthermore, the connecting portion 75 is fixed to the door-side core material 68. This makes it even more difficult for the backing plate 70 to curl up.

[0058] As shown in Figure 7, the backing plate 70 is divided into an indoor backing plate 70i and an outdoor backing plate 70o. The indoor backing plate 70i includes an indoor portion 77 and an indoor portion 75i of the connecting portion 75 as part of the connecting portion 75. The outdoor backing plate 70o includes an outdoor portion 75o of the connecting portion 75 as the part of the connecting portion 75 other than the indoor portion 75i, and an outdoor portion 73. The indoor portion 75i and the outdoor portion 75o of the connecting portion are connected to each other. By dividing the backing plate 70 in this way, the backing plate 70 can be manufactured more easily than when the entire backing plate 70 is formed as a single piece.

[0059] As shown in Figure 7, the interior side portion 75i and the exterior side portion 75o of the connecting section are overlapped in the door width direction X. As shown in Figure 6, one of the interior side portion 75i and the exterior side portion 75o of the connecting section is provided with an elongated hole f4b extending in the door thickness direction Y. The other of the interior side portion 75i and the exterior side portion 75o of the connecting section is provided with a hole f4a. The interior side portion 75i and the exterior side portion 75o of the connecting section are connected to each other by fasteners F4 that pass through the elongated hole f4b and hole f4a. As a result, the dimension of the backing plate 70 in the door thickness direction Y can be easily adjusted within the range of the elongated hole f4b.

[0060] As shown in Figure 7, the avoidance portion 756 of the connecting portion 75 extends toward the door tail side X-, extends from its tip toward the door thickness direction Y, and extends from its tip toward the door edge side X+. As shown in Figure 6, a trowel stopper 667 is provided inside the avoidance portion 756. This prevents interference between the connecting portion 75 and the trowel stopper 667. As a result, the backing plate 70 can be positioned at the same height as the trowel stopper 667. This improves the flexibility of the dimensions and position of the interior handle 87.

[0061] [Second Embodiment] Next, the second embodiment will be described with reference to Figure 12. The following embodiments will be described primarily based on the first embodiment, focusing on the differences, and explanations of aspects that are the same as or similar to the first embodiment will be omitted as appropriate.

[0062] As shown in Figure 12, the box body 31 in this embodiment does not have the "outdoor opening 313" as described in the first embodiment shown in Figure 3. Therefore, the box body 31 in this embodiment shown in Figure 12 houses the locking / unlocking mechanism 35 so as not to be exposed to the outdoor side Y+.

[0063] In other words, in this embodiment, the shielding plate 38 is integrally formed with the box body 31. That is, in this embodiment, the shielding plate 38 is the part of the box body 31 that is on the outdoor side Y+ from the locking / unlocking mechanism 35.

[0064] According to this embodiment, the number of parts in the joinery 100 can be reduced by integrally forming the shielding plate 38 with the box body 31.

[0065] [Third Embodiment] Next, a third embodiment will be described with reference to Figures 13 to 15. As shown in Figure 14, the door 100 of this embodiment does not have a thumbturn and an interior handle, but instead has a cylinder 43 and an exterior handle 83, as shown in Figure 13.

[0066] In this embodiment, as shown in Figure 15, an electric locking / unlocking device 40 is provided inside the box 31. That is, the electric locking / unlocking device 40 is part of the box lock 30, and the box lock 30 is an electric box lock.

[0067] As shown in Figure 15, the shielding plate 38 is attached to the box body 31 so as to cover the indoor opening 317. Therefore, when viewed from the indoor side Y- in the locked state, the shielding plate 38 overlaps the front of the locking / unlocking mechanism 35. The cylinder 43 is fixed to the shielding plate 38 while connected to the locking / unlocking mechanism 35. This fixing structure is substantially the same as that of the thumbturn 47 in the first embodiment.

[0068] The outdoor handle 83 shown in Figure 13 is fixed to the back plate 70 in substantially the same way as the indoor handle 87 in the first embodiment.

[0069] According to this embodiment, as shown in Figure 15, the door 100 is equipped with an electric locking / unlocking device 40. This eliminates the need for a thumbturn. As a result, the design freedom of the interior side Y- of the door 100 shown in Figure 14 can be improved. This allows for a cleaner design of the interior side Y- of the door 100, for example, with fewer protruding structures.

[0070] However, simply removing the thumbturn would lead to the following problem. Specifically, if the part of the sleeve portion 20 shown in Figure 15 that is located on the exterior side Y+ above the area around the box lock 30 is destroyed, it becomes possible to access the part of the locking / unlocking mechanism 35 that is originally intended to connect to the thumbturn from the exterior side Y+ using a bent jig or the like. As a result, the lock becomes easier to pry open. In this embodiment, however, a shielding plate 38 is provided at a position that overlaps with the front of the locking / unlocking mechanism 35 when viewed from the interior side Y-. This shielding plate 38 makes it difficult to pry open the lock.

[0071] As described above, according to this embodiment, as shown in Figure 14, by eliminating the thumbturn and providing the shielding plate 38, it is possible to improve the design freedom of the interior side Y- of the door 100 without making the lock easier to pry open.

[0072] The locking / unlocking mechanism 35 shown in Figure 15 is housed inside the box body 31. The box body 31 is provided with an interior opening 317 that exposes the locking / unlocking mechanism 35 to the interior side Y-. This interior opening 317 is originally intended to allow a thumbturn to be connected to the locking / unlocking mechanism 35, and is unnecessary in this embodiment. The shielding plate 38 is attached to the box body 31 so as to cover this interior opening 317. Therefore, a standard box lock 30, that is, a box lock 30 with a specification that allows a thumbturn to be connected, can be used as is or without significant structural modifications.

[0073] As shown in Figure 15, the cylinder 43 is fixed to the shielding plate 38, not to the thumbturn, while connected to the locking / unlocking mechanism 35. Therefore, even in the absence of a thumbturn, as in this embodiment, the cylinder 43 can be attached to the locking / unlocking mechanism 35 without any problems.

[0074] [Fourth Embodiment] Next, the fourth embodiment will be described with reference to Figure 16. In this embodiment, not only are there no cylinders and outdoor handles on the outdoor side Y+, but there are also no thumbturns and indoor handles on the indoor side Y-. Therefore, the shielding plate 38 consists of an outdoor shielding plate 38 and an indoor shielding plate 38. The outdoor shielding plate 38 closes the outdoor opening 313, similar to that of the first embodiment. The indoor shielding plate 38 closes the indoor opening 317, similar to that of the second embodiment. The outdoor shielding plate 38 overlaps the locking / unlocking mechanism 35 when viewed from the outdoor side Y+. The indoor shielding plate 38 overlaps the locking / unlocking mechanism 35 when viewed from the indoor side Y-. In this embodiment as well, as in the third embodiment, an electric locking / unlocking device 40 is provided inside the box body 31. That is, the box lock 30 is an electric box lock.

[0075] According to this embodiment, the degree of design freedom can be improved on both the outdoor side Y+ and the indoor side Y-.

[0076] [Fifth Embodiment] Next, a fifth embodiment will be described with reference to Figure 17. The entrance 300 of this embodiment includes the door 100 of the first embodiment and a second door 200 separate from the door 100. The second door 200 is located near the door 100 and, for example, leads to the same entrance. In this embodiment, as shown in Figure 17, the door 100 and the second door 200 are arranged side by side on the door width X side, but other arrangements are also possible.

[0077] The second door / window 200 is a standard door / window that is manually locked, unlocked, and opened and closed. Therefore, the second door / window 200 is equipped with a cylinder 243 and an exterior handle 283 on the exterior side Y+, and a thumbturn 247 and an interior handle 287 on the interior side Y-.

[0078] According to this embodiment, even during a power outage, it is possible to enter and exit the room through the second door 200 without any problems. Furthermore, it is also possible to use the door 100 only at predetermined times, such as when guests are visiting, and use the second door 200 at all other times.

[0079] [Other embodiments] The above embodiments can be implemented with modifications as follows, for example. In each embodiment, the door body 60 shown in Figure 1, etc., may be a sliding door instead of a swing door. In each embodiment, the box lock 30 and the shielding plate 38 may be provided inside the door body 60 or the door frame 10 instead of inside the side portion 20. [Explanation of Symbols]

[0080] 10...Door frame, 60...Door body, 63...Outside surface panel, 68...Door edge core material, 667...Decorator, 67...Inside surface panel, 70...Backing plate, 70i...Inside backing plate, 70o...Outside backing plate, 73...Outside part, 75...Joint part, 75i...Inside part of joint, 75o...Outside part of joint, 756...Avoidance part, 77...Inside part, 83...Outside handle, 87...Inside handle, 90...Electric opening and closing device, 100...Joinery, F4...Fastener, f4a...Hole, f4b...Slotted hole, X...Door width direction, X-...Door tail side, X+...Door edge side, Y...Door thickness direction, Y-...Inside, Y+...Outside.

Claims

1. A door fitting comprising a door frame and a door body installed inside the door frame so as to be openable and closable, The door body is equipped with an electric opening and closing device configured to open and close electrically, At least on the exterior side of the door body, there is no door handle installed for manually opening the door body. Doors and windows.

2. An interior handle for manually opening the door body is installed on the interior side of the door body, The door body includes a backing plate provided inside the door body, The interior handle is fixed to the back plate. The joinery according to claim 1.

3. The door body comprises an interior surface material and an exterior surface material arranged side by side in the door thickness direction, which is the thickness direction of the door body. The backing plate is provided between the indoor surface material and the outdoor surface material. The backing plate comprises an indoor portion extending along the indoor surface material, an outdoor portion extending along the outdoor surface material, and a connecting portion connecting the leading edge end of the door body on the indoor portion and the leading edge end of the door body on the outdoor portion, thereby opening toward the trailing edge side of the door body. The joinery according to claim 2.

4. The door body is equipped with a door-side core material provided at the door-side end, The aforementioned connecting portion is fixed to the door edge side core material. The joinery according to claim 3.

5. The aforementioned backing plate is divided into an indoor backing plate and an outdoor backing plate. The aforementioned indoor backing plate includes the indoor portion and the indoor portion of the connecting portion as part of the connecting portion, The exterior backing plate includes the exterior portion of the connecting plate, which is the portion of the connecting plate other than the interior portion of the connecting portion, and the exterior portion. The indoor side of the connecting part and the outdoor side of the connecting part are connected to each other. The joinery according to claim 3 or 4.

6. The interior side portion of the connecting section and the exterior side portion of the connecting section are overlapped in the door width direction, which is the width direction of the door body. One of the connecting portion on the interior side and the connecting portion on the exterior side is provided with an elongated hole that extends in the door thickness direction, which is the thickness direction of the door body. A hole is provided in the other of the indoor side portion and the outdoor side portion of the connecting part. The indoor side of the connecting portion and the outdoor side of the connecting portion are connected to each other by a fastening member that passes through the elongated hole and the hole. The joinery according to claim 5.

7. The connecting portion includes a relief portion that extends toward the trailing edge of the door body, extends toward the exterior from its tip, and extends toward the leading edge of the door body from its tip, and a trapdoor is provided inside the relief portion. The joinery according to claim 3 or 4.

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