Opening / closing structure, locker, and shutter

Abstract

Provided are an opening / closing structure, a locker, and a shutter that serve as an opening / closing structure with a higher level of crime preventing capability.　A shutter 10 that is an opening / closing structure is configured to appropriately cover an opening 12 of a building 11. The shutter 10 is capable of assuming a closed state of covering the opening 12 and an open state of not covering the opening 12. The shutter 10 comprises: a slat body 14 formed of a plurality of slats 13; and an emergency locking unit 20. The emergency locking unit 20 permits the opening operation of the slat body 14 when being set in a non-lock state during normal times. Further, the emergency locking unit 20 is configured to restrict the opening operation of the slat body 14 when being set in a locked state during an emergency.

Description

Opening and closing mechanisms, lockers and shutters

[0001] The present invention relates to an opening / closing structure, a rocker, and a shutter.

[0002] Shutters, which are opening and closing structures, are structures that are installed on the outside or inside of windows or entrances for purposes such as protection from the cold, fire prevention, crime prevention, and sun protection. Shutters are generally made of metal and shaped like bamboo blinds that can be rolled up. In recent years, various inventions have been made to improve the crime prevention capabilities of shutters (see the following patent documents).

[0003] Japanese Patent No. 3644937, Japanese Patent Laid-Open No. 2004-316289, Japanese Patent Laid-Open No. 2510900, Japanese Patent Laid-Open No. 2006-90043, Japanese Patent Laid-Open No. 6-346669, Japanese Utility Model Laid-Open No. 57-93596, Japanese Patent Laid-Open No. 55-13354

[0004] However, there is room for improvement in terms of crime prevention with respect to shutters and other opening and closing structures according to the background art.

[0005] Specifically, installing shutters on windows and other windows can ensure a certain level of crime prevention. However, intruders attempt to break shutters using various tools to enter homes. Furthermore, the number of reported burglaries in Japan has been on the rise in recent years, and some of these burglaries involve breaking shutters to enter homes. It is difficult to say that existing shutters are sufficient to prevent such crimes.

[0006] The present invention has been made in consideration of the above problems, and an object of the present invention is to provide an opening and closing structure, a locker, and a shutter with improved security.

[0007] The opening and closing structure of the present invention is configured to cover an opening as appropriate, and is capable of taking a closed state in which the opening is covered and an open state in which the opening is not covered, and is equipped with an opening and closing body main body that is movable along the opening and closing direction, and an emergency locking unit, wherein the emergency locking unit has an opening and closing body side locking unit arranged on the side of the opening, and an opening side locking unit arranged on the side of the opening, and the opening and closing body side locking unit has a removable plate, the plate having an opening and closing body side return portion formed on it, and the opening side locking unit having an opening side return portion formed on it, and in normal times, the opening and closing body side return portion and the opening side return portion do not engage, and in an emergency, the opening and closing body side return portion and the opening side return portion engage.

[0008] The opening / closing structure of the present invention is configured to cover an opening as appropriate, and is capable of taking a closed state in which the opening is covered and an open state in which the opening is not covered, and is equipped with an opening / closing body main body that is movable along an opening / closing direction, and an emergency locking part, and the emergency locking part is configured to be in an unlocked state in normal times to allow the opening operation of the opening / closing body main body, and in an emergency to be in a locked state to restrict the opening operation of the opening / closing body main body, and the emergency locking part is configured to be locked by an opening / closing body side locking part disposed on the side of the opening / closing body main body, and The locking mechanism has a locking portion and an opening-side locking portion arranged on the side of the opening, and is configured so that the opening-side locking portion and the opening-side locking portion do not engage with each other in normal times and engage with each other in emergencies, the opening-side locking portion is rotatably arranged, and the opening-side locking portion has an opening-side locking portion main body and an opening-side return portion, and the opening-side return portion is connected to the opening-side locking portion main body via a hinge portion.

[0009] The opening / closing structure of the present invention comprises an opening / closing body main body configured to cover an opening appropriately, capable of assuming a closed state in which the opening is covered and an open state in which the opening is not covered, and movable along the opening / closing direction, and an emergency locking unit, the emergency locking unit having an opening / closing body side locking unit disposed on the opening side of the opening / closing body main body and an opening side locking unit disposed on the opening side, the opening / closing body side locking unit having a removable plate, the plate having an opening / closing body side return portion formed on the plate, the opening side return portion and the opening side locking unit having an opening side return portion formed on the plate, the opening / closing body side return portion and the opening side return portion do not engage with each other under normal conditions, but engage with each other under emergency conditions. According to the opening / closing structure of the present invention, since the opening / closing body side return portion is formed on the plate, even if the opening is pried open, the opening / closing structure can be reused by simply replacing the deformed plate.

[0010] The opening / closing structure of the present invention includes an opening / closing body main body configured to cover an opening appropriately, capable of assuming a closed state in which the opening is covered and an open state in which the opening is not covered, and movable along an opening / closing direction; and an emergency locking unit, wherein the emergency locking unit is configured to be in an unlocked state to allow the opening of the opening / closing body main body in normal times and in a locked state to restrict the opening of the opening / closing body main body in an emergency, the emergency locking unit having an opening / closing body-side locking unit disposed on the opening / closing body main body side and an opening-side locking unit disposed on the opening side, wherein the opening / closing body-side locking unit and the opening-side locking unit do not engage with each other in normal times and engage with each other in an emergency, and the opening / closing body-side locking unit is rotatably disposed. Therefore, after engagement, the opening / closing body-side locking unit can be continued to be used by rotating the opening / closing body-side locking unit back to its original position. As a result, even in the event of an emergency, there is no need to replace the opening / closing body side locking portion, which improves the cost efficiency of the opening / closing structure.

[0011] FIG. 1 is a front view showing a closed state of a shutter that is an opening / closing structure according to an embodiment of the present invention. FIG. 2 is a front view showing an open state of a shutter according to an embodiment of the present invention. FIG. 3 is a cross-sectional view showing a closed state of a shutter according to an embodiment of the present invention. FIG. 4 is a cross-sectional view showing an open state of a shutter according to an embodiment of the present invention. FIG. 5 is a cross-sectional view showing a situation in which an intrusion is attempted in a shutter according to an embodiment of the present invention. FIG. 6 is a cross-sectional view showing a situation in which an intrusion is attempted in a shutter according to an embodiment of the present invention. FIG. 7 is a cross-sectional view showing a situation in which an intrusion is attempted in a shutter according to an embodiment of the present invention. FIG. 8 is a cross-sectional view showing a situation in which an intrusion is attempted in a shutter according to another embodiment of the present invention. FIG. 9 is a cross-sectional view showing a situation in which an intrusion is attempted in a shutter according to another embodiment of the present invention. FIG. 10 is a cross-sectional view showing a situation in which an intrusion is attempted in a shutter according to another embodiment of the present invention. FIG. 1 is a cross-sectional view showing a situation in which an intrusion is attempted in a shutter according to a further embodiment of the present invention; FIG. 2 is a cross-sectional view showing a situation in which an intrusion is attempted in a shutter according to a further embodiment of the present invention; FIG. 3 is a cross-sectional view showing a situation in which an intrusion is attempted in a shutter according to a further embodiment of the present invention; FIG. 4 is a cross-sectional view showing a situation in which an intrusion is attempted in a shutter according to a further embodiment of the present invention; FIG. 5 is a cross-sectional view showing a situation in which an intrusion is attempted in a shutter according to a further embodiment of the present invention;

[0012] An embodiment of the present invention will be described in detail below with reference to the drawings. In the following description, the structure of a shutter 10, which is an opening / closing structure, will be described using directions such as outside, inside, left and right, and up and down. Here, the outside refers to the outside of the building on which the shutter 10 is installed, as shown in FIG. 1 . The inside refers to the opposite side of the outside. In the following description, identical components will generally be given the same reference numerals, and repeated description will be omitted. Here, the components constituting the shutter 10 are made of, for example, metals such as iron and stainless steel, synthetic resins, etc.

[0013] In the present embodiment, a shutter 10 is exemplified below as an example of an opening / closing structure. However, the opening / closing structure according to this embodiment can also be applied to openings of objects other than the shutter 10. Specifically, the opening / closing structure according to this embodiment can also be applied to car trunks, attaché cases, entrance doors, window sashes, safes, lockers, and the like.

[0014] Here, the correspondence between the claims and the embodiments will be explained. An example of an opening / closing body is the slat 13, an example of an opening / closing body main body is the slat main body 14, an example of an opening / closing body side locking part is the slat side locking part 21, an example of an opening / closing body side return part is the slat side return part 231, and the opening / closing body side locking part main body is the main body of the slat side locking part 21.

[0015] Fig. 1A is a front view showing a closed state of the shutter 10. Fig. 1B is a front view showing an open state of the shutter 10. Fig. 1B shows the shutter 10 in an intermediate stage of an opening operation, i.e., in a half-open state.

[0016] 1A and 1B, a shutter 10 is configured to appropriately cover an opening 12 in a building 11. The shutter 10 includes a slat body 14 made up of a plurality of slats 13, and an emergency lock portion 20.

[0017] The shutter 10 is a security device that is installed inside the frame 15 and that appropriately opens or closes the opening 12 defined inside the frame 15. The shutter 10 can also be provided with a locking mechanism in the middle in the left-right direction, which is the opening and closing direction. By providing the locking mechanism, the user can close the shutter 10 and lock the locking mechanism, thereby preventing intrusion through the shutter 10.

[0018] Here, the shutter 10 employs a mechanism that opens and closes in the left-right direction, but a mechanism that moves in the up-down direction can also be employed. When the shutter 10 employs a mechanism that moves in the up-down direction, the emergency locking portion 20 (described later) is provided at the lower end of the slat body 14, and the rib 24 (described later) is provided at the lower side of the frame portion 15.

[0019] The slat body 14 is movable in the opening / closing direction and comprises, for example, a plurality of slats 13 made of metal plates rotatably connected in the left-right direction. An example of the opening / closing direction is the left-right direction shown in FIG. 1 . The slat body 14 may also include only one slat 13. The slat body 14 is configured to be openable and closable in the left-right direction. The slat body 14 also has a winding section (not shown) at its left end. The slat 13 is wound into a generally cylindrical shape and stored in the winding section. The opening and closing operation of the slat body 14 may be manual or electric. In the manual type, the user manually moves the slat body 14 to the right to close the slat body 14. In the manual type, the user manually moves the slat body 14 to the left to open the slat body 14. In the electric type, the slat body 14 is moved right and left by the driving force of a motor (not shown).

[0020] The shutter 10 can be in a closed state in which the slat body 14 covers the opening 12, and an open state in which the slat body 14 does not cover the opening 12. Closing the opening 12 with the shutter 10 prevents intruders from entering the building 11 through the opening 12, thereby improving security. In an open state in which the shutter 10 does not close the opening 12, light and ventilation can be allowed in through the opening 12. Furthermore, in the open state, people and objects can enter and exit through the opening 12.

[0021] The emergency locking section 20 is a security device that does not hinder the opening and closing of the shutter 10 under normal circumstances, but does not allow the shutter 10 to open in an emergency when an intruder attempts to break in. The emergency locking section 20 is disposed on the right end slat 13 over almost the entire area of ​​the slat 13 in the vertical direction. In addition, a rib 24, which will be described later, is also formed over almost the entire area of ​​the side surface of the frame section 15 in the vertical direction.

[0022] Fig. 2A is a cross-sectional view showing the shutter 10 in a closed state. Fig. 2B is a cross-sectional view showing the shutter 10 in an intermediate stage of an open state. Figs. 2A and 2B are cross-sectional views taken along the line A-A in Fig. 1. The same applies to the cross-sectional views from Fig. 3A onwards.

[0023] 2A , the shutter 10 is an indoor shutter that is disposed inside the window 16. Because the shutter 10 is an indoor shutter, when the window 16 is closed, the shutter 10 does not appear on the exterior of the building 11, thereby improving the aesthetic appearance of the building 11. Here, the shutter 10 may be a normal shutter that is disposed on the outside of the window 16.

[0024] The shutter 10 of this embodiment has an emergency locking unit 20. The emergency locking unit 20 is a device that appropriately maintains the locked state of the shutter 10. As will be described later, in normal times as shown in Fig. 2A etc., the slat-side locking unit 21 and the opening-side locking unit 22 of the emergency locking unit 20 do not engage. On the other hand, in an emergency as will be described later with reference to Fig. 3B etc., the slat-side locking unit 21 and the opening-side locking unit 22 of the emergency locking unit 20 engage.

[0025] Referring to FIG. 2A , the emergency locking unit 20 is disposed at the right end of the slat body 14 and is a component that performs a locking function only when an intruder attempts to break in. Specifically, the shutter 10 has a slat-side locking unit 21 and an opening-side locking unit 22. The slat-side locking unit 21 is the slat 13 disposed at the right end of the slat body 14. The opening-side locking unit 22 is a component disposed on the frame portion 15 side. Here, in the normal state shown in FIG. 2A , the inner surface of the slat-side return portion 231 is positioned outward from the outer surface of the opening-side return portion 232. With this configuration, when the slat body 14 is opened or closed, the slat-side return portion 231 and the opening-side return portion 232 do not accidentally engage with each other, and the emergency locking unit 20 does not interfere with the opening or closing operation of the slat body 14.

[0026] 1A, the slat-side locking portion 21 is formed over almost the entire area of ​​the shutter 10 in the vertical direction. Also, the opening-side locking portion 22 is formed over almost the entire area of ​​the frame portion 15 in the vertical direction. With this configuration, the entire area of ​​the right end of the slat body 14 in the vertical direction is protected by the emergency locking portion 20, thereby improving the security of the shutter 10.

[0027] 2A and other figures, the emergency locking unit 20 is in an unlocked state, thereby allowing the opening of the slat body 14. In an emergency, which will be described later with reference to FIG. 3A and other figures, the emergency locking unit 20 is in a locked state, thereby restricting the opening of the slat body 14.

[0028] In this embodiment, at least one of the slat-side locking portion 21 and the opening-side locking portion 22 has a turned portion. As will be described later, the slat-side locking portion 21 is formed with a slat-side turned portion 231, and the opening-side locking portion 22 is formed with an opening-side turned portion 232.

[0029] Referring to FIG. 2B , the slat-side locking portion 21 has a generally U-shaped cross section that opens to the right. The internal space of the slat-side locking portion 21 is sized to accommodate the opening-side locking portion 22 (described later) with ample space. In particular, the internal space of the slat-side locking portion 21 is larger than that of the opening-side locking portion 22 in the outward-inward direction. This configuration prevents the opening-side return portion 232 of the opening-side locking portion 22 from unnecessarily engaging with the slat-side return portion 231 of the slat-side locking portion 21 during normal operation. Furthermore, this configuration allows for fluctuations in the relative positions of the slat-side locking portion 21 and the opening-side locking portion 22 in an emergency situation in which an intruder attempts to enter the building 11, thereby enabling the slat-side return portion 231 and the opening-side return portion 232 to engage with each other.

[0030] The slat-side locking portion 21 is formed with a slat-side turned portion 231. The slat-side turned portion 231 is a turned portion formed near the right end of the outer surface of the slat-side locking portion 21. The inner left end portion of the slat-side turned portion 231 protrudes inward. The outer surface of the slat-side turned portion 231 is an inclined surface that slopes inward toward the left. With this configuration, as will be described later, the slat-side turned portion 231 and the opening-side turned portion 232 firmly engage with each other in an emergency.

[0031] The opening-side locking portion 22 is a portion disposed on the left side surface of the frame portion 15 and is a generally hook-shaped portion that protrudes toward the left. When the slat body 14 is in the closed state, the opening-side locking portion 22 is sized to be stored inside the slat-side locking portion 21. The opening-side locking portion 22 also has an opening-side turned portion 232. The opening-side turned portion 232 is a portion formed by folding back the left end of the opening-side locking portion 22, and is folded back toward the right in a generally straight line.

[0032] The rib 24 is disposed in the opening 12 in the outer portion close to the emergency locking portion 20. In this example, the rib 24 is disposed on the left side surface of the frame portion 15, near the outside of the emergency locking portion 20. The rib 24 is disposed on the outer surface of the slat-side locking portion 21 when the shutter 10 is in the closed state. The rib 24 is a rod-shaped member made of a metal such as stainless steel and having a substantially rectangular cross section. As will be described later, the provision of the rib 24 makes it possible to use a rod-shaped member such as a crowbar 25 to pry open the slat body 14, and the pressing force of the crowbar 25 can be used to lock the emergency locking portion 20.

[0033] 3A, 3B and 3C are cross-sectional views showing successive situations where an intrusion is attempted.

[0034] Referring to FIG. 3A, when an intruder attempts to invade the building 11 through the opening 12, the intruder first breaks the window 16 using a tool such as a crowbar 25.

[0035] Referring to FIG. 3B, the intruder then inserts the sharp end of the crowbar 25 between the slat-side locking portion 21 and the rib 24 and attempts to pry open the slat body 14.

[0036] 3C, if an intruder inserts the tip of a crowbar 25 between the rib 24 and the slat-side locking portion 21 and rotates the crowbar 25 clockwise to try to pry open the building 11, a force acts to bend the outer surface of the slat-side locking portion 21 inward. As a result, the outer surface of the slat-side locking portion 21 bends inward.

[0037] As a result, the slat-side return portion 231 of the slat-side locking portion 21 and the opening-side return portion 232 of the opening-side locking portion 22 engage with each other. This places the emergency locking portion 20 in a locked state. Therefore, even if an intruder attempts to open the shutter 10 by moving the slat body 14 to the left, the intruder cannot move the slat 13 to the left because the emergency locking portion 20 is locked. Furthermore, the intruder cannot peel the slat 13 outward. In addition, the engagement structure of the emergency locking portion 20 cannot be seen from the outside. Therefore, an intruder will give up on opening the shutter 10 and entering the building 11 through the opening 12. This improves the security of the shutter 10.

[0038] That is, the shutter 10 allows the user to freely open the shutter at their will in normal times. However, in an emergency where an intruder attempts to forcefully open the shutter 10, the emergency locking unit 20 is locked, preventing the slat body 14 from opening. This prevents an intruder from entering the building through the opening 12.

[0039] 4A, 4B, and 4C are cross-sectional views sequentially showing situations in which an intrusion is attempted in the shutter 10 according to another embodiment.

[0040] The basic configuration of the shutter 10 shown in Figure 4A etc. is the same as that shown in Figure 2A etc., except that at least one of the slat-side locking part 21 and the opening-side locking part 22 is configured to be removable in an emergency. By being able to remove the slat-side locking part 21 or the opening-side locking part 22 in an emergency, the user can open the slat body 14 and enter or exit through the opening 12 even in an emergency.

[0041] 4A , a plate 26 is provided on the inside of the outer surface portion of the slat-side locking portion 21. Specifically, as described above, the slat-side locking portion 21 has a substantially U-shaped cross section and includes an outer surface portion 211 and an inner surface portion 212. The outer surface portion 211 is a side surface formed on the outside of the slat-side locking portion 21. The inner surface portion 212 is a side surface formed on the inside of the slat-side locking portion 21.

[0042] The plate 26 is a generally plate-shaped member that extends across the entire vertical area of ​​the shutter 10. The plate 26 is a generally plate-shaped member and has a slat-side return portion 231. That is, in this case, the slat-side return portion 231 is not formed on the main body of the slat-side locking portion 21, but is formed on the plate 26, which is a separate member. The plate 26 protrudes inward from the right end of the slat-side return portion 231 and further protrudes sharply downward and inward.

[0043] The plate 26 is fixed from the inside to the outer surface portion 211 of the slat-side locking portion 21. The plate 26 is fixed to the outer surface portion 211 by fastening using bolts 27, which will be described later.

[0044] Furthermore, the right end of the plate 26 is located to the right of the right end of the outer surface 211 of the slat-side locking portion 21. That is, the outer surface 211 is shorter than the inner surface 212 in the left-right direction. By doing so, when an intruder attempts to pry open the shutter 10 using a crowbar 25, only the plate 26 bends, preventing the outer surface 211 of the slat-side locking portion 21 from bending. As a result, when an intrusion attempt occurs, it can be addressed by simply replacing the plate 26, reducing maintenance costs for the shutter 10.

[0045] When the shutter 10 is in the closed state, the right side end of the outer surface 211 of the slat-side locking part 21 may be located to the left of the left end of the rib 24. In this way, when the crowbar 25 penetrates, the crowbar 25 is prevented from coming into contact with the outer surface 211 of the slat-side locking part 21, and bending or damage to the outer surface of the slat-side locking part 21 can be prevented.

[0046] The plate 26 is attached to the outer surface 211 of the slat-side locking part 21 by bolts 27. That is, through holes are formed in the outer surface 211, the inner surface 212 of the slat-side locking part 21, and the plate 26, and the bolts 27 pass through these through holes and are fastened to the plate 26 and the slat-side locking part 21. The heads of the bolts 27 are disposed on the inner side of the slat-side locking part 21. Therefore, the bolts 27 can be attached and removed only from inside the building 11, and cannot be attached and removed from outside the building 11.

[0047] Here, a key structure can be provided to the bolt 27. This allows only users who have the key to rotate the bolt 27, further improving security. Furthermore, if the bolt 27 has a key structure, the bolt 27 can be configured to be operable from outside the building 11.

[0048] Further, referring to FIG. 4A, when an intruder attempts to enter the building 11 through the opening 12, the intruder first breaks the window 16 using a tool such as a crowbar 25.

[0049] Referring to FIG. 4B, an intruder inserts the sharp end of the crowbar 25 between the slat-side locking portion 21 and the rib 24 and attempts to pry open the slat body 14.

[0050] 4C, if an intruder inserts the tip of a crowbar 25 between the rib 24 and the slat-side locking portion 21 and rotates the crowbar 25 clockwise to attempt to pry open the building 11, the plate 26 will bend inward. At this time, the outer surface portion 211 of the slat-side locking portion 21 will not be deformed because no large force is applied by the crowbar to the outer surface portion 211 of the slat-side locking portion 21.

[0051] As a result, the slat-side return portion 231 of the plate 26 and the opening-side return portion 232 of the opening-side locking portion 22 engage with each other. This places the emergency locking unit 20 in a locked state. Therefore, even if an intruder attempts to open the shutter 10 by moving the slat body 14 to the left, the intruder cannot move the slat 13 to the left because the emergency locking unit 20 is in a locked state. Furthermore, the intruder cannot peel the slat 13 outward. Furthermore, because the bolt 27 cannot be operated from outside the building 11, an intruder outside the building 11 cannot operate the bolt 27 to remove the plate 26. This forces the intruder to give up on entering the building 11.

[0052] Fig. 5A is a cross-sectional view showing a state in which the emergency locking unit 20 is unlocked in the shutter 10 according to another embodiment. Fig. 5B is a cross-sectional view showing a state in which the emergency locking unit 20 is unlocked in the shutter 10 according to another embodiment.

[0053] 5A, the user who owns the building 11 pulls out the bolt 27 by rotating it from inside the building 11. This releases the fastening between the outer surface portion 211 of the slat-side locking portion 21 and the plate 26, allowing the slat-side locking portion 21 and the slat body 14 to move.

[0054] 5B , when the user applies force to the slat body 14 toward the left, the slat body 14 and the slat-side locking part 21 move toward the left, and the shutter 10 enters the open state. The user then removes the plate 26 that is engaged with the opening-side return part 232 and uses the bolts 27 to attach a new plate 26 to the outer surface part 211 of the slat-side locking part 21. As described above, the outer surface part 211 of the slat-side locking part 21 is not deformed because no large force is applied from the crowbar 25. Therefore, even if an intruder attempts to break in, the user can deal with the situation by simply replacing the plate 26.

[0055] The configuration of the shutter 10 according to yet another embodiment will be described with reference to Figures 6A and 6B. The configuration of the shutter 10 shown in Figures 6A and 6B is similar in basic configuration to that described with reference to Figure 2A etc., except that it has a slat-side turned-up portion 234 and an opening-side turned-up portion 233. This configuration can be applied to all other embodiments.

[0056] 6A, a slat side return region 234 is formed at the left end of the slat side return portion 231. The slat side return region 234 is a region where the left end of the slat side return portion 231 protrudes outward.

[0057] The opening-side locking portion 22 is formed with an opening-side turned portion 233. The opening-side turned portion 233 is a portion where the right end of the opening-side turned portion 232 protrudes inward. When the slat body 14 is opened or closed in normal operation, the slat-side turned portions 231 and 224 do not engage with the opening-side turned portion 232 or the opening-side turned portion 233. This allows the user to open and close the slat body 14 smoothly.

[0058] 6B, if an intruder attempts to break in using the crowbar 25 described above, the slat-side locking part 21 moves inward and to the left, and the slat-side return part 234 of the slat-side return part 231 fits into the opening-side return part 233 of the opening-side return part 232. The presence of the opening-side return part 233 and the slat-side return part 234 further strengthens the fit between the opening-side locking part 22 and the slat-side locking part 21, thereby further improving the security of the shutter 10.

[0059] The configuration of the shutter 10 according to still another embodiment will be described with reference to Figures 7A to 7C. The configuration of the shutter 10 shown in Figures 7A to 7C is basically the same as that described with reference to Figure 2A etc., except that the slat side return portion 231 is rotatable by having a hinge portion 28. This configuration can be applied to all other embodiments.

[0060] 7A , the slat-side locking portion 21 is configured to be partially rotatable. Specifically, a hinge portion 28 is disposed between the slat-side locking portion main body, which is the main body of the slat-side locking portion 21, and the slat-side return portion 231. The hinge portion 28 is provided over the entire length of the slat-side locking portion 21. The slat-side return portion 231 is configured to be rotatable around the hinge portion 28 as the center of rotation. The hinge portion 28 may also be configured to bias the slat-side return portion 231 to maintain a substantially straight state along the left-right direction. That is, the hinge portion 28 may be biased to return to its original straight state when a force acts to rotate the slat-side return portion 231 clockwise or counterclockwise on the paper.

[0061] As shown in Figure 7B, when an intruder attempts to break into the house by using the tip of the crowbar 25 to pry open the slat side return portion 231, the slat side return portion 231 rotates clockwise on the paper with the hinge portion 28 as the center of rotation.

[0062] 7C , as the slat side return portion 231 rotates clockwise, the slat side return portion 231 engages with the opening side return portion 232. The engagement between the slat side return portion 231 and the opening side return portion 232 prevents an intruder from opening the slat body 14 and from entering the room. Because the slat side return portion 231 engages by rotating around the hinge portion 28, the amount of deformation is small or almost nonexistent. Therefore, the slat side return portion 231 can be reused even after an intrusion attempt.

[0063] The configuration of the shutter 10 according to yet another embodiment will be described with reference to Figures 8A to 8C. The configuration of the shutter 10 shown in Figures 8A to 8C is similar in basic configuration to that described with reference to Figure 2A etc., except that it includes a flexible member 30. This configuration can be applied to all other embodiments.

[0064] 8A, a flexible member 30 is disposed inside the slat-side locking portion 21. The flexible member 30 is a member that can be bent by an intruder's operation. Specifically, the flexible member 30 is a sheet-like or plate-like member made of metal, cloth, or the like. The flexible member 30 is disposed throughout the slat-side locking portion 21 along the height direction.

[0065] One end of the flexible member 30 is fixed inside the opening-side locking portion 22. Specifically, the one end of the flexible member 30 is fixed near the right end of the opening-side returning portion 232 and near the inside of the opening-side returning portion 232. The other end of the flexible member 30 is connected to the inner operating portion 31. The inner operating portion 31 is disposed inside a hole 29 that penetrates the opening-side locking portion 22.

[0066] 8B , when an intruder tries to pry open the slat side return portion 231, the slat side return portion 231 bends inward, and the slat side return portion 231 and the opening side return portion 232 fit together. This prevents the intruder from opening the slat 13 and from entering the room. At this time, the opening side return portion 232 and the slat side return portion 231 fit together, sandwiching the flexible member 30.

[0067] 8C , after the intruder's break-in attempt has ended, the building owner, or user, pulls the inner operating unit 31 inward, thereby applying a tensile force to the flexible member 30. This displaces the slat side return portion 231 toward the right, disengaging the slat side return portion 231 from the opening side return portion 232. This allows the user to move the slat 13 toward the left and open it.

[0068] Here, the inner operating portion 31 can also be disposed on the outside of the slat body 14. This allows the user to apply a tensile force to the flexible member 30 from the outside, disengaging the slat side return portion 231 from the opening side return portion 232, and open the slat 13.

[0069] 9A to 9C, the configuration and operation of still another embodiment of the shutter 10 will be described. The configuration of the shutter 10 shown in Figures 9A to 9C is a combination of the configurations of the shutter 10 shown in Figures 7A, etc. and 8A, etc. That is, the shutter 10 shown in Figures 9A to 9C has a hinge portion 28 and a flexible member 30.

[0070] 9A , the slat-side return part 231 and the main body of the slat-side locking part 21 are rotatably connected via a hinge part 28. A flexible member 30 is disposed between the opening-side return part 232 and the inside operating part 31. The inside operating part 31 is disposed inside the hole 29.

[0071] 9B, if an intruder attempts to pry open the slat-side locking portion 21 using a crowbar 25, the slat-side return portion 231 rotates around the hinge portion 28, and the slat-side return portion 231 and the opening-side return portion 232 engage with each other. This prevents the intruder from opening the slat body 14 and from entering the interior. When the slat-side return portion 231 and the opening-side return portion 232 engage with each other, the flexible member 30 is interposed between them.

[0072] 9C, after the attempted intrusion is completed, the user pulls the inner operating portion 31 inward. This applies a tensile force to the flexible member 30, causing the hinge portion 28 to rotate in the opposite direction to the above, thereby releasing the engagement between the slat-side turned portion 231 and the opening-side turned portion 232. The slat-side turned portion 231 then returns to the state shown in FIG. 9A and can be used again as part of the shutter 10.

[0073] Although the embodiments of the present invention have been described above, the present invention is not limited to these and can be modified within the scope of the present invention. In addition, the above-described embodiments can be combined with each other.

[0074] The invention that can be understood from the above-described embodiment will be described below together with its effects.

[0075] An opening / closing structure according to an embodiment of the present invention is configured to appropriately cover an opening, and can assume a closed state in which the opening is covered and an open state in which the opening is not covered. The opening / closing structure includes a slat body composed of a plurality of slats, and an emergency locking unit. The emergency locking unit is configured to be in an unlocked state during normal times to allow the slat body to open, and in an emergency to restrict the slat body from opening by being locked. According to the opening / closing structure of the present invention, the opening / closing structure can be freely opened according to the user's request during normal times. Meanwhile, in an emergency in which an intruder attempts to forcefully open the opening / closing structure, the emergency locking unit is locked, preventing the slat body from opening. This prevents intruders from entering the building through the opening.

[0076] In addition, in the opening and closing structure according to an embodiment of the present invention, the emergency locking unit has a slat-side locking unit disposed on the side of the slat body and an opening-side locking unit disposed on the side of the opening, and the slat-side locking unit and the opening-side locking unit do not engage with each other in normal times, and the slat-side locking unit and the opening-side locking unit engage with each other in an emergency. According to the opening and closing structure of the present invention, in an emergency, the slat-side locking unit and the opening-side locking unit engage with each other, thereby reliably preventing an intruder from opening the slat body.

[0077] In the opening / closing structure according to the embodiment of the present invention, at least one of the slat-side locking portion and the opening-side locking portion has a barb. According to the opening / closing structure of the present invention, the barb engages to strengthen the engagement between the slat-side locking portion and the opening-side locking portion in an emergency, thereby more reliably preventing an intruder from opening the slat body.

[0078] In addition, in the opening / closing structure according to an embodiment of the present invention, at least one of the slat-side locking portion and the opening-side locking portion is configured to be removable in an emergency. According to the opening / closing structure of the present invention, since the slat-side locking portion or the opening-side locking portion can be removed in an emergency, a user can open the slat body and enter or exit through the opening even in an emergency.

[0079] In addition, in the opening and closing structure according to the embodiment of the present invention, the removal is performed from inside the building. According to the opening and closing structure of the present invention, the removal is performed from inside the building, thereby preventing an intruder from removing the structure.

[0080] In addition, the opening / closing structure according to the embodiment of the present invention is characterized in that a rib is provided on the opening of the outer portion that is close to the emergency locking portion. According to the opening / closing structure of the present invention, by providing the rib, a rod-shaped member such as a crowbar is required to pry open the slat body, and the pressing force of the crowbar can be used to lock the emergency locking portion.

[0081] In the opening / closing structure according to the embodiment of the present invention, the slat-side locking portion and the opening-side locking portion each have a barb. According to the opening / closing structure of the present invention, the barb is formed on both the slat-side locking portion and the opening-side locking portion, thereby strengthening the engagement between the slat-side locking portion and the opening-side locking portion in an emergency.

[0082] In the opening / closing structure according to the embodiment of the present invention, the slat-side locking portion and the opening-side locking portion each have a barbed portion formed therein, and in an emergency, the barbed portions fit together to further strengthen the fit between the slat-side locking portion and the opening-side locking portion.

[0083] In addition, in the opening / closing structure according to an embodiment of the present invention, the slat-side locking portion has a removable plate, a slat-side turned portion is formed on the plate, and an opening-side turned portion is formed on the opening-side locking portion, and the slat-side turned portion and the opening-side turned portion do not engage with each other in normal times, but engage with each other in an emergency. According to the opening / closing structure of the present invention, since the slat-side turned portion is formed on the plate, even if the opening / closing structure is pried open, the opening / closing structure can be reused by simply replacing the deformed plate.

[0084] In the opening / closing structure according to the embodiment of the present invention, the emergency locking portion has an outer surface portion and an inner surface portion, and the plate is attached to the outer surface portion. According to the opening / closing structure of the present invention, by attaching the plate to the outer surface portion, only the plate can deform during entry, and deformation of the main body of the slat-side locking portion can be suppressed.

[0085] In the opening / closing structure according to the embodiment of the present invention, when the slat body is in a closed state, the end of the outer surface portion that is closest to the frame portion is positioned farther away from the frame portion than the end of the inner surface portion that is closest to the frame portion. According to the opening / closing structure of the present invention, since the outer surface portion is short, deformation of the outer surface portion can be suppressed when the opening / closing structure is pried open.

[0086] REFERENCE SIGNS LIST 10 shutter 11 building 12 opening 13 slat 14 slat body 15 frame 16 window 20 emergency locking section 21 slat side locking section 211 outer surface section 212 inner surface section 22 opening side locking section 231 slat side return section 232 opening side return section 233 opening side return section 234 slat side return section 24 rib 25 crowbar 26 plate 27 bolt 28 hinge section 29 hole section 30 flexible member 31 inner operating section

Claims

1. An opening and closing structure comprising: an opening and closing body main body configured to cover an opening as appropriate, capable of taking a closed state in which the opening is covered and an open state in which the opening is not covered, and movable along the opening and closing direction; and an emergency locking part, wherein the emergency locking part has an opening and closing body side locking part arranged on the side of the opening and closing body main body, and an opening side locking part arranged on the side of the opening, the opening and closing body side locking part having a removable plate, the plate having an opening and closing body side return part formed on it, and the opening side locking part having an opening side return part formed on it, wherein the opening and closing body side return part and the opening side return part do not engage with each other in normal times, and the opening and closing body side return part and the opening side return part engage with each other in an emergency.

2. The opening and closing structure according to claim 1, wherein the emergency locking section has an outer surface and an inner surface, and the plate is attached to the outer surface.

3. The opening and closing structure described in claim 2, characterized in that, when the opening and closing body main body is in the closed state, the end of the outer surface portion that is closest to the frame portion is positioned farther away from the frame portion than the end of the inner surface portion that is closest to the frame portion.

4. A device configured to cover an opening as appropriate, capable of taking a closed state in which the opening is covered and an open state in which the opening is not covered, and comprising: an opening / closing body main body movable along the opening / closing direction; and an emergency locking part; the emergency locking part is configured to be in an unlocked state in normal times to allow the opening operation of the opening / closing body main body, and in an emergency to restrict the opening operation of the opening / closing body main body in a locked state; the emergency locking part has an opening / closing body side locking part arranged on the side of the opening / closing body main body, and an opening side locking part arranged on the side of the opening; the opening / closing body side locking part and the opening side locking part do not engage with each other in normal times, and engage with each other in an emergency; the opening / closing body side locking part is arranged rotatably; and the opening / closing body side locking part has an opening / closing body side locking part main body and an opening / closing body side return part; The opening and closing structure is characterized in that the opening and closing body side return part is connected to the opening and closing body side lock part main body via a hinge part.

5. The opening and closing structure according to claim 4, characterized in that a flexible member is disposed between the opening and closing body side locking portion and the opening side locking portion, and one end of the flexible member is connected to the opening side locking portion.

6. The opening and closing structure described in claim 5, further comprising an inner operating part connected to the other end of the flexible member and disposed inside the opening and closing structure, wherein after the emergency, a pulling force is applied to the flexible member via the inner operating part, thereby releasing the engagement between the opening and closing body side locking part and the opening side locking part.

7. A locker having the opening and closing structure according to any one of claims 1 to 6.

8. A shutter having an opening and closing structure according to any one of claims 1 to 6.

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