Opening / closing structure

Abstract

To provide a shutter as an opening / closing structure improved in crime prevention.SOLUTION: A shutter 10 being an opening / closing structure is constituted so as to properly cover an opening part 12 of a building 11. The shutter 10 can take a closed state covering the opening 12 and an open state not covering the opening 12. The shutter 10 is provided with a slat body 14 composed of a plurality of slats 13 and an emergency lock part 20. The emergency locking part 20 allows the opening operation of the slat body 14 by being in a non-locked state in a normal time. Further, the emergency locking portion 20 is configured to restrict the opening operation of the slat body 14 by being in the locked state in the emergency.SELECTED DRAWING: FIG. 2A

Description

[Technical Field]

[0001] The present invention relates to an opening and closing structure. [Background technology]

[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, 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 properties of shutters (see the patent documents listed below). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 3644937 [Patent Document 2] Japanese Patent Application Laid-Open No. 2004-316289 [Patent Document 3] Publication No. 2510900 [Patent Document 4] Japanese Patent Application Laid-Open No. 2006-90043 [Patent Document 5] Japanese Patent Application Publication No. 6-346669 [Patent Document 6] Japanese Utility Model Application Publication No. 57-93596 [Patent Document 7] Japanese Patent Application Publication No. 55-13354 Summary of the Invention [Problem to be solved by the invention]

[0004] However, there is room for improvement in terms of crime prevention with respect to the shutter, which is an opening and closing structure 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 with improved security. [Means for solving the problem]

[0007] An opening / closing structure according to an embodiment of the present invention comprises an opening / closing body main body that is configured to cover an opening as appropriate and can assume a closed state that covers the opening and an open state that does not cover the opening, and that is movable along the opening / closing direction; and an emergency locking unit. The emergency locking unit is configured to be in an unlocked state in normal times to allow the opening of the opening / closing body main body, and in an emergency to restrict the opening of the opening / closing body main body by being in a locked state. The emergency locking unit has an opening / closing body side locking unit arranged on the side of the opening / closing body main body, and an opening side locking unit arranged on the side of the opening, and is configured so that the opening / closing body side locking unit and the opening side locking unit do not engage with each other in normal times, and so that the opening / closing body side locking unit and the opening side locking unit engage with each other in an emergency, and the opening / closing body side locking unit is arranged to be rotatable.

[0008] In addition, in the opening and closing structure according to an embodiment of the present invention, the opening and closing body side locking section has an opening and closing body side locking section main body and an opening and closing body side return section, and the opening and closing body side return section is connected to the opening and closing body side locking section main body via a hinge section.

[0009] In addition, the opening / closing structure according to an embodiment 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 the opening / closing direction, and an emergency locking unit, wherein the emergency locking unit 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 unit has an opening / closing body side locking unit arranged on the side of the opening / closing body main body, and an opening side locking unit arranged on the side of the opening, and is configured so that the opening / closing body side locking unit and the opening side locking unit do not engage with each other in normal times, and so engage with each other in an emergency, and a flexible member is arranged between the opening / closing body side locking unit and the opening side locking unit, and one end of the flexible member is connected to the opening side locking unit.

[0010] Furthermore, the opening / closing structure according to an embodiment of the present invention further comprises an inner operating unit connected to the other end of the flexible member and arranged inside the opening / closing structure, and after the emergency, a tensile force is applied to the flexible member via the inner operating unit, thereby releasing the engagement between the opening / closing body side locking unit and the opening side locking unit. [Effects of the Invention]

[0011] An opening / closing structure according to an embodiment of the present invention comprises an opening / closing body main body that is configured to cover an opening as appropriate and can assume a closed state that covers the opening and an open state that does not cover the opening, and that is movable along the opening / closing direction; and an emergency locking unit. The emergency locking unit is configured to be in an unlocked state in normal times to allow the opening of the opening / closing body main body, and in an emergency to restrict the opening of the opening / closing body main body by being in a locked state. The emergency locking unit has an opening / closing body side locking unit arranged on the side of the opening / closing body main body, and an opening side locking unit arranged on the side of the opening, and is configured so that the opening / closing body side locking unit and the opening side locking unit do not engage with each other in normal times, and so that the opening / closing body side locking unit and the opening side locking unit engage with each other in an emergency, and the opening / closing body side locking unit is arranged to be rotatable. According to the opening-closing structure of the present invention, the opening-closing body locking part is rotatably arranged, so that in an emergency, the opening-closing body locking part rotates to engage with the opening-closing body locking part. After engagement, the opening-closing body locking part can be continued to be used by rotating the opening-closing body locking part back to its original position. This eliminates the need to replace the opening-closing body locking part even in an emergency, thereby improving the cost-effectiveness of the opening-closing structure.

[0012] In the opening / closing structure according to the embodiment of the present invention, 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, and the opening / closing body side return part is connected to the opening / closing body side locking part main body via a hinge part. According to the opening / closing structure of the present invention, the opening / closing body side return part can be continuously used even in an emergency situation.

[0013] In addition, the opening / closing structure according to an embodiment 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 the opening / closing direction, and an emergency locking unit, wherein the emergency locking unit 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 unit has an opening / closing body side locking unit arranged on the side of the opening / closing body main body, and an opening side locking unit arranged on the side of the opening, and is configured so that the opening / closing body side locking unit and the opening side locking unit do not engage with each other in normal times, and so engage with each other in an emergency, and a flexible member is arranged between the opening / closing body side locking unit and the opening side locking unit, and one end of the flexible member is connected to the opening side locking unit. According to the opening / closing structure of the present invention, by disposing a flexible member between the opening / closing body side locking portion and the opening side locking portion, the engagement between the opening / closing body side locking portion and the opening side locking portion can be released by applying a tensile force to the flexible member after an emergency occurs.

[0014] In addition, the opening / closing structure according to an embodiment of the present invention further includes an inner operating unit connected to the other end of the flexible member and disposed inside the opening / closing structure, and after the emergency, a pulling force is applied to the flexible member via the inner operating unit to release the engagement between the opening / closing body side locking unit and the opening side locking unit. According to the opening / closing structure of the present invention, the engagement between the opening / closing body side locking unit and the opening side locking unit can be released by the simple operation of pulling the flexible member from inside the opening / closing structure via the inner operating unit. [Brief explanation of the drawings]

[0015] [Figure 1A] 1 is a front view showing a closed state of a shutter, which is an opening / closing structure according to an embodiment of the present invention; [Figure 1B] FIG. 2 is a front view showing an open state of the shutter according to the embodiment of the present invention. [Figure 2A]FIG. 3 is a cross-sectional view showing a closed state of the shutter according to the embodiment of the present invention. [Figure 2B] FIG. 2 is a cross-sectional view showing an open state of the shutter according to the embodiment of the present invention. [Figure 3A] 1 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. [Figure 3B] 1 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. [Figure 3C] 1 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. [Figure 4A] FIG. 10 is a cross-sectional view showing a state in which an intrusion is attempted in a shutter according to another embodiment of the present invention. [Figure 4B] FIG. 10 is a cross-sectional view showing a state in which an intrusion is attempted in a shutter according to another embodiment of the present invention. [Figure 4C] FIG. 10 is a cross-sectional view showing a state in which an intrusion is attempted in a shutter according to another embodiment of the present invention. [Figure 5A] 10 is a cross-sectional view showing a state in which the emergency locking section is unlocked in a shutter according to another embodiment of the present invention. FIG. [Figure 5B] 10 is a cross-sectional view showing a state in which the emergency locking section is unlocked in a shutter according to another embodiment of the present invention. FIG. [Figure 6A] FIG. 10 is a cross-sectional view showing the configuration of an emergency locking portion in a shutter according to still another embodiment of the present invention. [Figure 6B] FIG. 10 is a cross-sectional view showing the configuration of an emergency locking portion in a shutter according to still another embodiment of the present invention. [Figure 7A] 10 is a cross-sectional view of a shutter according to a further embodiment of the present invention, showing a situation in which an intrusion is attempted; FIG. [Figure 7B] 10 is a cross-sectional view of a shutter according to a further embodiment of the present invention, showing a situation in which an intrusion is attempted; FIG. [Figure 7C] 10 is a cross-sectional view of a shutter according to a further embodiment of the present invention, showing a situation in which an intrusion is attempted; FIG. [Figure 8A] 10 is a cross-sectional view of a shutter according to a further embodiment of the present invention, showing a situation in which an intrusion is attempted; FIG. [Figure 8B] 10 is a cross-sectional view of a shutter according to a further embodiment of the present invention, showing a situation in which an intrusion is attempted; FIG. [Figure 8C] 10 is a cross-sectional view of a shutter according to a further embodiment of the present invention, showing a situation in which an intrusion is attempted; FIG. [Figure 9A] 10 is a cross-sectional view of a shutter according to a further embodiment of the present invention, showing a situation in which an intrusion is attempted; FIG. [Figure 9B] 10 is a cross-sectional view of a shutter according to a further embodiment of the present invention, showing a situation in which an intrusion is attempted; FIG. [Figure 9C] 10 is a cross-sectional view of a shutter according to a further embodiment of the present invention, showing a situation in which an intrusion is attempted; FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] 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 and 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.

[0017] In this embodiment, a shutter 10 will be exemplified below as an example of an opening and closing structure. However, the opening and closing structure according to this embodiment can also be applied to openings of objects other than the shutter 10. Specifically, the opening and closing structure according to this embodiment can also be applied to car trunks, attaché cases, front doors, window sashes, safes, lockers, etc.

[0018] Here, the correspondence between the claims and the embodiments will be explained. An example of an opening / closing body is a slat 13, an example of an opening / closing body main body is a slat main body 14, an example of an opening / closing body side locking part is a slat side locking part 21, an example of an opening / closing body side return part is a slat side return part 231, and an opening / closing body side locking part main body is the main body of the slat side locking part 21.

[0019] 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 its opening operation, that is, in a half-open state.

[0020] 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 consisting of a plurality of slats 13, and an emergency lock portion 20.

[0021] 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 lock mechanism in the middle in the left-right direction, which is the opening and closing direction. By providing the lock mechanism, the user can close the shutter 10 and lock the lock mechanism, thereby preventing intrusion through the shutter 10.

[0022] 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.

[0023] The slat body 14 is movable in the opening / closing direction and is made up of, for example, multiple 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).

[0024] 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.

[0025] 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.

[0026] 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 being in an open state. Figs. 2A and 2B are cross-sectional views taken along the line AA in Fig. 1. The same applies to the cross-sectional views from Fig. 3A onwards.

[0027] 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.

[0028] 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.

[0029] Referring to FIG. 2A , the emergency locking portion 20 is disposed at the right end of the slat body 14 and is a portion that exhibits a locking function only when an intruder attempts to break in. Specifically, the shutter 10 has a slat-side locking portion 21 and an opening-side locking portion 22. The slat-side locking portion 21 is the slat 13 disposed at the right end of the slat body 14. The opening-side locking portion 22 is a portion that is 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 disposed outward from the outer surface of the opening-side return portion 232. With this configuration, when the slat body 14 opens or closes, the slat-side return portion 231 and the opening-side return portion 232 do not accidentally engage with each other, and the emergency locking portion 20 does not interfere with the opening or closing operation of the slat body 14.

[0030] 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 portion 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.

[0031] 2A and other figures, the emergency locking section 20 is in an unlocked state, thereby allowing the opening of the slat body 14. In addition, in an emergency, which will be described later with reference to FIG. 3A and other figures, the emergency locking section 20 is in a locked state, thereby restricting the opening of the slat body 14.

[0032] 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.

[0033] Referring to FIG. 2B , the slat-side locking portion 21 has a generally U-shaped cross section that opens toward the right. The internal space of the slat-side locking portion 21 is sized to accommodate the opening-side locking portion 22, which will be described later, with ample space. In particular, the internal space of the slat-side locking portion 21 is formed 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 in normal times. 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 when an intruder attempts to enter the building 11, allowing the slat-side return portion 231 and the opening-side return portion 232 to engage with each other.

[0034] The slat-side locking portion 21 is formed with a slat-side return portion 231. The slat-side return portion 231 is a return 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 return portion 231 protrudes inward. The outer surface of the slat-side return portion 231 is an inclined surface that slopes inward toward the left. With this configuration, as will be described later, the slat-side return portion 231 and the opening-side return portion 232 firmly engage with each other in an emergency.

[0035] 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 portion of the opening-side locking portion 22, and is folded back toward the right in a generally straight line.

[0036] 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 made of a metal such as stainless steel and is a rod-shaped member with 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.

[0037] 3A, 3B and 3C are cross-sectional views showing successive situations where an intrusion is attempted.

[0038] 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.

[0039] 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.

[0040] 3C, if an intruder inserts the tip of crowbar 25 between rib 24 and slat-side locking portion 21 and turns crowbar 25 clockwise to try to pry open building 11, a force acts to bend the outer surface of slat-side locking portion 21 inward. As a result, the outer surface of slat-side locking portion 21 bends inward.

[0041] 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 in a locked state. Furthermore, an 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.

[0042] That is, in normal times, the shutter 10 can be freely opened according to the user's request. On the other hand, in an emergency where an intruder attempts to forcefully open the shutter 10, the emergency locking section 20 is locked, preventing the slat body 14 from opening. This prevents an intruder from entering the building through the opening 12.

[0043] 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.

[0044] 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.

[0045] 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 has 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.

[0046] 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.

[0047] 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 with bolts 27, which will be described later.

[0048] Furthermore, the right end of the plate 26 is located to the right of the right end of the outer surface portion 211 of the slat-side locking portion 21. That is, the outer surface portion 211 is shorter than the inner surface portion 212 in the left-right direction. By doing so, when an intruder tries to pry open the shutter 10 using a crowbar 25, only the plate 26 bends, preventing the outer surface portion 211 of the slat-side locking portion 21 from bending. As a result, when an intrusion attempt occurs, it can be dealt with simply by replacing the plate 26, reducing the maintenance costs of the shutter 10.

[0049] When the shutter 10 is in the closed state, the right side end of the outer surface portion 211 of the slat-side locking portion 21 may be located to the left of the left end of the rib 24. By doing so, when the crowbar 25 penetrates, the crowbar 25 is prevented from coming into contact with the outer surface portion 211 of the slat-side locking portion 21, and bending or damage to the outer surface portion of the slat-side locking portion 21 can be prevented.

[0050] The plate 26 is attached to the outer surface 211 of the slat-side locking part 21 by a bolt 27. That is, through holes are formed in the outer surface 211 and inner surface 212 of the slat-side locking part 21 and the plate 26, and the bolt 27 passes through these through holes and is fastened to the plate 26 and the slat-side locking part 21. The head of the bolt 27 is disposed on the inner side of the slat-side locking part 21. Therefore, the bolt 27 can be attached and removed only from inside the building 11, and cannot be attached and removed from outside the building 11.

[0051] 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 also be configured so that it can be operated from outside the building 11.

[0052] Further, referring to FIG. 4A, when an intruder attempts to enter building 11 through opening 12, the intruder first breaks window 16 using a tool such as crowbar 25 to destroy it.

[0053] 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.

[0054] 4C, if an intruder inserts the tip of crowbar 25 between rib 24 and slat-side locking portion 21 and rotates crowbar 25 clockwise to attempt to pry open building 11, plate 26 will bend inward. At this time, no large force from the crowbar acts on outer surface portion 211 of slat-side locking portion 21, and therefore outer surface portion 211 of slat-side locking portion 21 will not deform.

[0055] 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 main 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.

[0056] Fig. 5A is a cross-sectional view showing a state in which the emergency locking unit 20 is unlocked in a shutter 10 according to another embodiment. Fig. 5B is a cross-sectional view showing a state in which the emergency locking unit is unlocked in a shutter 10 according to another embodiment.

[0057] 5A, the user who owns the building 11 pulls out the bolt 27 from inside the building 11 by rotating it, etc. 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.

[0058] 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 fitted into the opening-side return part 232 and uses the bolt 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.

[0059] 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 return portion 234 and an opening side return portion 233. This configuration can be applied to all other embodiments.

[0060] 6A, a slat side return portion 234 is formed at the left end of the slat side return portion 231. The slat side return portion 234 is a portion where the left end of the slat side return portion 231 protrudes outward.

[0061] 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 normally, 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.

[0062] 6B, if an intruder attempts to break in using the crowbar 25 described above, the slat-side locking portion 21 moves inward and to the left, and the slat-side return portion 234 of the slat-side return portion 231 fits into the opening-side return portion 233 of the opening-side return portion 232. The presence of the opening-side return portion 233 and the slat-side return portion 234 further strengthens the fit between the opening-side locking portion 22 and the slat-side locking portion 21, thereby further improving the security of the shutter 10.

[0063] The configuration of the shutter 10 according to yet 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 due to the inclusion of a hinge portion 28. This configuration can be applied to all other embodiments.

[0064] 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. In other words, 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.

[0065] 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 part 231, the slat side return part 231 rotates clockwise on the paper with the hinge part 28 as the center of rotation.

[0066] Referring to Figure 7C, as the slat side return part 231 rotates clockwise, the slat side return part 231 engages with the opening side return part 232. The engagement between the slat side return part 231 and the opening side return part 232 prevents an intruder from opening the slat main body 14 and from entering the room. Because the slat side return part 231 engages by rotating around the hinge part 28, the amount of deformation is small or almost non-existent. Therefore, the slat side return part 231 can be reused even after an intrusion attempt.

[0067] 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 has a flexible member 30. This configuration can be applied to all other embodiments.

[0068] Referring to Fig. 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 along the entire height direction of the slat-side locking portion 21.

[0069] 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.

[0070] 8B, when an intruder tries to pry open slat side return portion 231, slat side return portion 231 bends inward, and slat side return portion 231 and opening side return portion 232 fit together. This prevents the intruder from opening slat 13 and from entering the room. At this time, opening side return portion 232 and slat side return portion 231 fit together, sandwiching flexible member 30 therebetween.

[0071] 8C, after the intruder has finished attempting to break in, the user, who is the owner of the building, applies a tensile force to the flexible member 30 by pulling the inner operating unit 31 inward. This displaces the slat side return portion 231 to the right, disengaging the slat side return portion 231 from the opening side return portion 232. Thus, the user can move the slat 13 to the left and set it to the open state.

[0072] 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.

[0073] 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.

[0074] 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. In addition, 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 part 29.

[0075] 9B, if an intruder tries 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 fit together. This prevents the intruder from opening the slat main body 14 and from entering the interior. When the slat-side return portion 231 and the opening-side return portion 232 fit together, the flexible member 30 is interposed between them.

[0076] 9C, after the attempted intrusion is completed, the user pulls the inner operating unit 31 inward. This applies a tensile force to the flexible member 30, causing the hinge unit 28 to rotate in the opposite direction to that described above, thereby releasing the engagement between the slat side returned part 231 and the opening side returned part 232. The slat side returned part 231 then returns to the state shown in FIG. 9A and can be used again as part of the shutter 10.

[0077] 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.

[0078] The invention that can be understood from the above-described embodiment will be described below together with its effects.

[0079] A shutter according to an embodiment of the present invention is configured to cover an opening appropriately and can assume a closed state in which the opening is covered and an open state in which the opening is not covered. The shutter comprises a slat body composed of a plurality of slats and an emergency locking unit, and 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. The shutter of the present invention allows the shutter to be freely opened according to the user's request during normal times. Meanwhile, in an emergency in which an intruder attempts to forcibly open the shutter, the emergency locking unit is locked, preventing the slat body from opening. This prevents intruders from entering the building through the opening.

[0080] In addition, in a shutter 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 in normal times, the slat-side locking unit and the opening-side locking unit do not engage with each other, and in an emergency, the slat-side locking unit and the opening-side locking unit engage with each other. According to the shutter 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.

[0081] In addition, in the shutter 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 shutter of the present invention, the barb fits to strengthen the engagement between the slat-side locking portion and the opening-side locking portion in an emergency, and more reliably prevents an intruder from opening the slat body.

[0082] In addition, in the shutter according to the 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 shutter 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.

[0083] In addition, in the shutter according to the embodiment of the present invention, the removal is performed from inside the building. According to the shutter of the present invention, the removal is performed from inside the building, which prevents intruders from removing the shutter.

[0084] Furthermore, the shutter according to the embodiment of the present invention is characterized in that a rib is provided at the opening on the outer portion that is close to the emergency locking portion. 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.

[0085] In addition, in the shutter 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 shutter of the present invention, by forming a barb on both the slat-side locking portion and the opening-side locking portion, the engagement between the slat-side locking portion and the opening-side locking portion can be strengthened in an emergency.

[0086] In addition, in the shutter 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 thereon. According to the shutter of the present invention, in an emergency, the barbed portions fit together, thereby further strengthening the fit between the slat-side locking portion and the opening-side locking portion.

[0087] In addition, in a shutter 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 in normal times, the slat-side turned portion and the opening-side turned portion do not engage, but in an emergency, the slat-side turned portion and the opening-side turned portion engage. According to the shutter of the present invention, since the slat-side turned portion is formed on the plate, even if the shutter is pried open, the shutter can be reused by simply replacing the deformed plate.

[0088] In addition, in the shutter 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 shutter 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.

[0089] In addition, in the shutter 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 shutter of the present invention, since the outer surface portion is short, deformation of the outer surface portion can be suppressed when the shutter is pried open. [Explanation of symbols]

[0090] 10 Shutter 11 Buildings 12 Opening 13 Slats 14 Slat body 15 Frame 16 Windows 20 Emergency lock section 21 Slat side locking part 211 External surface part 212 Inner side 22 Opening side lock 231 Slat side return part 232 Opening side return part 233 Opening side return part 234 Slat side return part 24 Ribs 25 bar 26 Plates 27 volts 28 Hinge part 29 Hole 30 Flexible member 31 Inner operation part

Claims

1. configured to appropriately cover the opening; The opening can be covered in a closed state and the opening can be uncovered in an open state. an opening / closing body main body that is movable along the opening / closing direction; an emergency locking section; The emergency lock unit is In normal times, the opening / closing body is allowed to open by being in an unlocked state, In an emergency, the locking state restricts the opening operation of the opening / closing body main body, The emergency locking unit has 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, In the normal state, the opening / closing body side locking portion and the opening side locking portion are not engaged with each other, In the emergency, the opening / closing body side locking portion and the opening side locking portion are configured to engage with each other, The opening / closing structure is characterized in that the opening / closing body side locking portion is rotatably arranged.

2. The opening / closing body side locking portion has an opening / closing body side locking portion main body and an opening / closing body side return portion, The opening and closing structure according to claim 1, wherein 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.

3. configured to appropriately cover the opening; The opening can be covered in a closed state and the opening can be uncovered in an open state. an opening / closing body main body that is movable along the opening / closing direction; an emergency locking section; The emergency lock unit is In normal times, the opening / closing body is allowed to open by being in an unlocked state, In an emergency, the locking state restricts the opening operation of the opening / closing body main body, The emergency locking unit has 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, In the normal state, the opening / closing body side locking portion and the opening side locking portion are not engaged with each other, In the emergency, the opening / closing body side locking portion and the opening side locking portion are configured to engage with each other, a flexible member is disposed between the opening / closing body side locking portion and the opening side locking portion; An opening / closing structure, characterized in that one end of the flexible member is connected to the opening-side locking portion.

4. an inner operating unit connected to the other end of the flexible member and disposed inside the opening / closing structure; The opening / closing structure according to claim 3, characterized in that after the emergency, a pulling force is applied to the flexible member via the inner operating portion, thereby releasing the engagement between the opening / closing body side locking portion and the opening side locking portion.

Images