Fitting

Abstract

To provide a strong fitting which normally opens inward and opens outward in an emergency.SOLUTION: An outer frame that is supported on a wall via an outer frame hinge, an inner door that is supported on the outer frame via an inner door hinge, an outer frame switching lock that normally restrains the outer frame with respect to the wall when one side is an outer side and releases the outer frame in an emergency, and an inner door switching lock that normally releases the inner door with respect to the outer frame when the one side is the outer side and restrains the inner door in the emergency, the outer frame hinge portion is disposed on a first lateral side with respect to the outer frame, the inner door hinge portion is disposed on the first lateral side with respect to the inner door, the outer frame has an outer frame abutting surface that prevents the outer frame from opening to the other side by abutting against a wall at an outer edge of the outer frame on a second lateral side, and the inner door has an inner door abutting surface that prevents the inner door from opening to one side with respect to the outer frame by abutting against the outer frame at an outer edge of the inner door on the second lateral side.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to building materials. [Background technology]

[0002] BACKGROUND ART Doors and other fixtures may be configured as inward-opening doors that open inward, or as outward-opening doors that open outward (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 62-59271 Summary of the Invention [Problem to be solved by the invention]

[0004] It is sometimes desirable for building fixtures to be configured so that they open inward under normal circumstances for security reasons, and open outward in emergencies for smooth evacuation, etc. In such cases, it is desirable for the fixtures to be as sturdy as possible.

[0005] Therefore, an object of the present invention is to provide a sturdy building fixture that opens inward under normal circumstances and outward in an emergency. [Means for solving the problem]

[0006] One aspect of the present invention is as follows.

[0007] [1] A door that opens inward in normal times and outward in emergencies. an outer frame supported by the wall via an outer frame hinge portion so as to open to one of the outer side and the inner side; an inner door supported on the outer frame via an inner door hinge portion so as to open to the other of the outer side and the inner side; An outer frame switching lock that normally restrains the outer frame against the wall when the one side is the outside and releases it in an emergency, and normally releases the outer frame against the wall when the one side is the inside and restrains it in an emergency; When the one side is the outside, the inner door is normally released relative to the outer frame and restrained in an emergency, and when the one side is the inside, the inner door is normally restrained relative to the outer frame and released in an emergency, The outer frame hinge portion is disposed on a first lateral side of the outer frame, which is the right side or the left side when viewed from the outside, The inner door hinge portion is disposed on the first lateral side with respect to the inner door, the outer frame has an outer frame abutment surface that prevents the outer frame from opening to the other side by abutting against the wall at an outer edge of a second lateral side of the outer frame that is opposite to the first lateral side, The inner door is a fixture having an inner door abutment surface that prevents the inner door from opening to the one side relative to the outer frame by abutting against the outer frame at the outer edge of the second lateral side of the inner door.

[0008] [2] The fitting according to [1], wherein the one side is the outside.

[0009] [3] The outer frame is inverted U-shaped, The fittings described in [1] or [2] have an inner door lock that restrains the inner door to the floor surface by locking.

[0010] [4] The inner door switching lock is an electric lock, A fixture described in any one of [1] to [3], which has wiring for an inner door switch lock that passes through the hollow portion of the inner door, enters the first side frame body of the outer frame from the first side end face, passes through the hollow portion of the first side frame body, and enters the hollow portion of the wall from the first side end face of the first side frame body.

[0011] [5] the outer frame abutment surface prevents the outer frame from opening to the other side by abutting against the wall at outer edges of the second side, the upper side, and the first side of the outer frame, The inner door abutment surface prevents the inner door from opening to one side relative to the outer frame by abutting against the outer frame at the outer edges of the second side, the upper side, and the first side of the inner door. A fitting described in any one of [1] to [4]. [Effects of the Invention]

[0012] According to the present invention, a sturdy fixture can be provided that opens inward under normal circumstances and outward in an emergency. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a plan view of a fixture according to an embodiment of the present invention as viewed from the outside. [Figure 2] FIG. 2 is a plan view of the fitting shown in FIG. 1 as seen from the inside. [Figure 3] 2 is a cross-sectional view taken along the line AA in FIG. 1. [Figure 4] 2 is a cross-sectional view of FIG. 1 taken along line B-B. [Figure 5] 2 is a cross-sectional view taken along CC in FIG. 1. [Figure 6] FIG. 2 is a cross-sectional view taken along the line DD in FIG. 1. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0015] As shown in Figures 1 to 3, in one embodiment of the present invention, the fitting 1 is a door that opens inward in an opening in a wall 2 under normal circumstances and outward in an emergency. In this embodiment, the fitting 1 includes an outer frame 3 supported by the wall 2 via an outer frame hinge portion 4 so as to open outward, an inner door 5 supported by the outer frame 3 via an inner door hinge portion 6 so as to open inward, an outer frame switching lock 7 that normally restrains the outer frame 3 relative to the wall 2 and releases it in an emergency, and an inner door switching lock 8 that normally releases the inner door 5 relative to the outer frame 3 and restrains it in an emergency. In this embodiment, the outer frame hinge portion 4 is composed of four outer frame hinges 4a, but the number of outer frame hinges 4a constituting the outer frame hinge portion 4 is not limited thereto. Furthermore, in this embodiment, the inner door hinge portion 6 is composed of two inner door hinges 6a, but the number of inner door hinges 6a constituting the inner door hinge portion 6 is not limited thereto.

[0016] In this embodiment, the outer frame 3 opens outward and the inner door 5 opens inward, but the opposite configuration is also possible, where the outer frame 3 opens inward and the inner door 5 opens outward. In this case, the fitting 1 is configured to have the outer frame 3 supported on the wall 2 via the outer frame hinge part 4 so as to open inward, the inner door 5 supported on the outer frame 3 via the inner door hinge part 6 so as to open outward, an outer frame switching lock 7 that normally releases the outer frame 3 from the wall 2 and restrains it in an emergency, and an inner door switching lock 8 that normally restrains the inner door 5 from the outer frame 3 and releases it in an emergency.

[0017] In other words, the building fixture 1 may be configured to have an outer frame 3 supported on the wall 2 via an outer frame hinge portion 4 so as to open to one of the outside and the inside (outside in this embodiment), an inner door 5 supported on the outer frame 3 via an inner door hinge portion 6 so as to open to the other of the outside and the inside (inside in this embodiment), an outer frame switching lock 7 which normally restrains the outer frame 3 against the wall 2 when one side is outside (which is the case in this embodiment) and releases it in an emergency when one side is inside (which is not the case in this embodiment), and an inner door switching lock 8 which normally releases the inner door 5 against the outer frame 3 when one side is outside (which is the case in this embodiment) and restrains it in an emergency when one side is inside (which is not the case in this embodiment).

[0018] However, it is preferable to configure one side to be on the outside, in which case it is possible to realize a fitting 1 that can be operated relatively easily under normal circumstances and that can ensure a relatively large opening in an emergency.

[0019] 1 and 2, the outer frame hinge portion 4 is disposed on a first lateral side, which is the right side when viewed from the outside, relative to the outer frame 3. The inner door hinge portion 6 is disposed on the first lateral side relative to the inner door 5. Note that, although the first lateral side is the right side in this embodiment, it may also be configured so that the first lateral side is the left side.

[0020] 3 and 4, the outer frame 3 has an outer frame abutment surface 3a that prevents the outer frame 3 from opening to the other side (inward in this embodiment) by abutting against the wall 2 at the outer edge of a second lateral side of the outer frame 3, which is opposite the first lateral side. The inner door 5 has an inner door abutment surface 5a that prevents the inner door 5 from opening to one side (outward in this embodiment) relative to the outer frame 3 by abutting against the outer frame 3 at the outer edge of the second lateral side of the inner door 5. With the above configuration, a robust fitting 1 that opens inward under normal circumstances and opens outward in an emergency can be realized.

[0021] 3 to 6, the outer frame abutment surface 3a prevents the outer frame 3 from opening to the other side by abutting against the wall 2 at the outer edges of the second lateral side, upper side, and first lateral side of the outer frame 3. The inner door abutment surface 5a prevents the inner door 5 from opening to one side relative to the outer frame 3 by abutting against the outer frame 3 at the outer edges of the second lateral side, upper side, and first lateral side of the inner door 5. According to the above configuration, it is possible to improve robustness compared to a configuration in which the outer frame abutment surface 3a and the inner door abutment surface 5a abut only at the outer edge of the second lateral side.

[0022] The outer frame 3 has a first side frame body 3b, a second side frame body 3c, and an upper frame body 3d that connects the upper end of the first side frame body 3b to the upper end of the second side frame body 3c.

[0023] As shown in Figures 1 and 2, the outer frame 3 has an inverted U-shape when viewed from the outside. The inverted U-shape also includes a shape in which the upper frame body 3d is linear. In the illustrated example, the upper frame body 3d is linear, but it may also have an arched shape. As shown in Figures 1 and 2 and 6, the door fixture 1 has an inner door lock 9 that locks the inner door 5 to the floor 16. With this configuration, the outer frame 3 is not at the foot of people entering or exiting the door, so it does not get in the way. Furthermore, the inner door 5 can be locked directly to the floor 16 without the outer frame 3, ensuring secure locking. The inner door lock 9 has an inner door locking member 9a that moves to a position spanning the inner door 5 and the floor 16 in the second lateral portion of the inner door 5 for locking.

[0024] As shown in Figures 1 and 2, the fitting 1 has a frame lock 10 that locks the frame 3 to the wall 2. The frame lock 10 has a frame locking member 10a that moves to a position spanning the frame 3 and the wall 2 in a second lateral portion of the frame 3 for locking.

[0025] As shown in Figures 1-2, 5, and 6, the inner door switch lock 8 is an electric lock. As shown in Figures 1-2, the fitting 1 has an inner door switch lock wiring 11 that passes through the hollow portion 5b of the inner door 5, enters the first side frame body 3b of the outer frame 3 from the first side end face, passes through the hollow portion 5b of the first side frame body 3b, and enters the hollow portion 5b of the wall 2 from the first side end face of the first side frame body 3b. With the above configuration, the inner door switch lock wiring 11 can be implemented while ensuring the strength of the outer frame 3.

[0026] An inner door energizing fitting 11a is installed at the boundary between the first side end of the inner door 5 and the first side frame body 3b of the outer frame 3, and an outer frame energizing fitting 11b is installed at the boundary between the first side end of the first side frame body 3b of the outer frame 3 and the wall 2. The wiring 11 for the inner door switch lock includes the inner door energizing fitting 11a, the outer frame energizing fitting 11b, a first wiring section 11c that connects the inner door switch lock 8 to the inner door energizing fitting 11a, a second wiring section 11d that connects the inner door energizing fitting 11a to the outer frame energizing fitting 11b, and a third wiring section 11e that connects the outer frame energizing fitting 11b to a control section (not shown). The control section is configured by a computer and controls the inner door switch lock 8 so that the inner door 5 is normally released relative to the outer frame 3 and is restrained in an emergency.

[0027] Structural members (not shown) for purposes such as reinforcement or insulation are disposed in the hollow portion 5b of the inner door 5, but are not limited to these. An outer handle 5c is provided on the outside of the second lateral portion of the inner door 5, and an inner handle 5d is provided on the inside. The outer handle 5c and the inner handle 5d are interlockably connected to a latch bolt (not shown) via a handle mechanism 5e disposed in the hollow portion 5b.

[0028] As shown in Figures 1-2 and 4, the outer frame switching lock 7 is an electric lock. The fitting 1 has wiring 12 for the outer frame switching lock that passes through the hollow portion 5b of the wall 2 and connects the outer frame switching lock 7 to a control unit. The control unit controls the outer frame switching lock 7 so that the outer frame 3 is normally restrained relative to the wall 2 and released in an emergency.

[0029] As shown in Figures 1 and 2, the fitting 1 has a rotary support 13 that supports the load of the outer frame 3 on the floor surface 16 via a rotor that is rotatably held at the lower end of the second side frame body 3c of the outer frame 3. With the above configuration, the fitting 1 can be opened with a light operation in an emergency. Note that the rotary support 13 is not limited to a configuration having a ball-shaped rotor as shown in the figures, and may be a configuration having, for example, a roll-shaped rotor, or a configuration using these two types of rotors in combination.

[0030] As shown in Figures 1 and 2, the fitting 1 has outer frame roller idle locks 14 that are respectively held on the second lateral side portions of the outer frame 3. In this embodiment, three outer frame roller idle locks 14 are provided, but the number of outer frame roller idle locks 14 is not limited to this and can be set appropriately so as to provide appropriate resistance when the fitting 1 begins to open in an emergency.

[0031] As shown in Figures 1 and 2, the fitting 1 has inner door roller locks 15 that are respectively held on the second lateral side portions of the inner door 5. In this embodiment, two inner door roller locks 15 are provided, but the number of inner door roller locks 15 is not limited to this, and can be set appropriately so as to obtain appropriate resistance when the fitting 1 starts to open and when it is closed under normal circumstances.

[0032] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and the above-described embodiments can be modified in various ways without departing from the gist of the present invention. [Explanation of symbols]

[0033] 1. Doors and windows 2. Wall 3 Outer frame 3a Outer frame contact surface 3b First side frame body 3c Second side frame 3d upper frame 4 Outer frame hinge 4a Outer frame hinge 5 Inner door 5a Inner door contact surface 5b Hollow part 5c Outside handle 5d Inner handle 5e Handle mechanism 6 Inner door hinge 6a Inner door hinge 7 Outer frame switching lock 8 Inner door switching lock 9 Inner door lock 9a Inner door locking member 10 Outer frame lock 10a Outer frame locking member 11 Wiring for inner door switching lock 11a Inner door electrical fitting 11b Outer frame conductive fitting 11c 1st wiring section 11d Second wiring section 11e 3rd wiring section 12 Wiring for outer frame switching lock 13 Rotating support 14 Outer frame roller lock 15 Inner door roller lock 16 Floor

Claims

1. A door that opens inward in normal times and outward in emergencies. an outer frame supported by the wall via an outer frame hinge portion so as to open to one of the outer side and the inner side; an inner door supported on the outer frame via an inner door hinge portion so as to open to the other of the outer side and the inner side; An outer frame switching lock that normally restrains the outer frame against the wall when the one side is the outside and releases it in an emergency, and normally releases the outer frame against the wall when the one side is the inside and restrains it in an emergency; When the one side is the outside, the inner door is normally released relative to the outer frame and restrained in an emergency, and when the one side is the inside, the inner door is normally restrained relative to the outer frame and released in an emergency, The outer frame hinge portion is disposed on a first lateral side of the outer frame, which is the right side or the left side when viewed from the outside, The inner door hinge portion is disposed on the first lateral side with respect to the inner door, the outer frame has an outer frame abutment surface that abuts against the wall at an outer edge of the outer frame on a second side opposite to the first side, thereby preventing the outer frame from opening to the other side; The inner door has an inner door abutment surface that prevents the inner door from opening to the one side relative to the outer frame by abutting against the outer frame at the outer edge of the second lateral side of the inner door.

2. The fixture of claim 1 , wherein the one side is the outside.

3. The outer frame is inverted U-shaped, The fixture according to claim 1, further comprising an inner door lock that restrains the inner door against the floor surface when locked.

4. The inner door switching lock is an electric lock, 2. The fixture as described in claim 1, further comprising wiring for an inner door switch lock that passes through the hollow portion of the inner door, enters the first side frame body of the outer frame from the first side end face, passes through the hollow portion of the first side frame body, and enters the hollow portion of the wall from the first side end face of the first side frame body.

5. the outer frame abutment surfaces abut against the wall at outer edges of the second lateral side, the upper side, and the first lateral side of the outer frame to prevent the outer frame from opening to the other side, The door frame is provided with a door abutment surface that prevents the door from opening to the other side relative to the outer frame by abutting the outer frame at the outer edges of the second side, the upper side, and the first side.

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