Opening and closing structure, locker, and shutter

Abstract

To provide an opening / closing structure, a locker, and a shutter with enhanced security. 【Solution means】The shutter 10, which is an opening / closing structure, is configured to appropriately cover the opening 12 of the 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 includes a slat body 14 composed of a plurality of slats 13 and an emergency lock portion 20. In normal times, the emergency lock portion 20 is in an unlocked state, thereby allowing the opening operation of the slat body 14. Further, in an emergency, the emergency lock portion 20 is in a locked state so as to restrict the opening operation of the slat body 14.

Description

Technical Field

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

Background Art

[0002] A shutter, which is an opening / closing structure, is a structure provided outside or inside a window or an entrance for purposes such as cold prevention, fire prevention, crime prevention, and sunshade. Further, the shutter is generally a curtain-shaped and retractable metal one. In recent years, various inventions (see the following patent documents) have been made to improve the crime prevention performance and the like of the shutter.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Patent Document 5

Patent Document 6

Patent Document 7

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the shutter which is an opening / closing structure according to the background art, there is room for improvement from the viewpoint of crime prevention.

[0005] Specifically, by providing a shutter for a window or the like, a certain level of crime prevention can be ensured. On the other hand, intruders may attempt to break the shutter using various tools and enter the room. In Japan, the number of reported break-in thefts has been on the rise in recent years, and some of these break-in thefts involve breaking through the shutter to gain entry. It is difficult to say that existing shutters are fully capable of dealing with such crimes.

[0006] The present invention has been made in view of such problems, and an object of the present invention is to provide an opening / closing structure, a locker, and a shutter with enhanced crime prevention performance.

Means for Solving the Problems

[0007] The opening / closing structure of the present invention is configured to appropriately cover an opening, and can take a closed state covering the opening and an open state not covering the opening, and includes an opening / closing body main body that is movable along the opening / closing direction and an emergency lock portion. The emergency lock portion is configured to be in an unlocked state during normal times, allowing the opening operation of the opening / closing body main body, and to be in a locked state during emergencies, restricting the opening operation of the opening / closing body main body. The emergency lock portion has an opening / closing body side lock portion disposed on the side of the opening / closing body main body and an opening side lock portion disposed on the side of the opening. During normal times, the opening / closing body side lock portion and the opening side lock portion are not engaged, and during emergencies, the opening / closing body side lock portion and the opening side lock portion are configured to be engaged. The opening / closing body side lock portion is rotatably disposed. The lock portion on the opening / closing body side has a lock portion main body on the opening / closing body side and a return portion on the opening / closing body side. The return portion on the opening / closing body side is connected to the lock portion main body on the opening / closing body side via a hinge portion. It is characterized by this.

Effects of the Invention

[0011] The opening and closing structure of the present invention is configured to appropriately cover an opening, and can take a closed state in which the opening is covered and an open state in which the opening is not covered, and includes an opening and closing body main body that is movable along the opening and closing direction, and an emergency lock portion. The emergency lock portion is configured to be in an unlocked state during normal times, allowing the opening operation of the opening and closing body main body, and in an emergency, to be in a locked state to restrict the opening operation of the opening and closing body main body. The emergency lock portion has an opening and closing body side lock portion disposed on the side of the opening and closing body main body and an opening side lock portion disposed on the side of the opening. During normal times, the opening and closing body side lock portion and the opening side lock portion do not engage, and in an emergency, the opening and closing body side lock portion and the opening side lock portion are configured to engage. The opening and closing body side lock portion is rotatably disposed, The lock portion on the opening / closing body side has a lock portion main body on the opening / closing body side and a return portion on the opening / closing body side. The return portion on the opening / closing body side is connected to the lock portion main body on the opening / closing body side via a hinge portion. which is characterized in that. According to the opening and closing structure of the present invention, since the opening and closing body side lock portion is rotatably disposed, when the opening and closing body side lock portion rotates in an emergency, the opening and closing body side lock portion and the opening side lock portion engage. Therefore, after the engagement, by reversely rotating the opening and closing body side lock portion to the original position, the opening and closing body side lock portion can be continuously used. From this, even when an emergency occurs, since there is no need to replace the opening and closing body side lock portion, the cost performance of the opening and closing structure can be improved.

Brief Description of the Drawings

[0015]

Figure 1A

Figure 1B

Figure 2A

Figure 2B

Figure 3A

Figure 3B

Figure 3C

Figure 4A

Figure 4B

Figure 4C

Figure 5A

Figure 5B

Figure 6A

Figure 6B

Figure 7A

Figure 7B

Figure 7C

Figure 8A

Figure 8B

Figure 8C

Figure 9A

Figure 9B

Figure 9C

Mode for Carrying Out the Invention

[0016] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description, the structure of the shutter 10, which is an opening and closing structure, will be described using directions such as the outside, inside, left and right, up and down, etc. Here, the outside refers to the outside of the building where the shutter 10 is installed with reference to FIG. 1. The inside is the side opposite to the outside. Also, in the following description, the same members are in principle given the same reference numerals, and repeated descriptions are omitted. Here, each member constituting the shutter 10 is made of, for example, a metal such as iron or stainless steel, a synthetic resin, or the like.

[0017] In the present embodiment, the shutter 10 is exemplified below as an example of the opening and closing structure. However, the opening and closing structure according to the present embodiment is also applicable to openings of objects other than the shutter 10. Specifically, the opening and closing structure according to the present embodiment can also be applied to the trunk of a car, an attaché case, the front door, a window sash, a safe, a locker, etc.

[0018] Here, the correspondence between the claims and the embodiments will be described. An example of the opening and closing body is the slat 13, an example of the opening and closing body main body is the slat main body 14, an example of the opening and closing body side lock portion is the slat side lock portion 21, an example of the opening and closing body side return portion is the slat side return portion 231, and the opening and closing body side lock portion main body is the main body of the slat side lock portion 21.

[0019] FIG. 1A is a front view showing the closed state of the shutter 10. FIG. 1B is a front view showing the open state of the shutter 10. FIG. 1B shows an intermediate stage in the opening operation of the shutter 10, i.e., the half-open state.

[0020] Referring to FIGS. 1A and 1B, the shutter 10 is configured to appropriately cover the opening 12 of the building 11. The shutter 10 includes a slat body 14 composed of a plurality of slats 13 and an emergency lock portion 20.

[0021] The shutter 10 is an anti-theft device installed inside the frame portion 15, which appropriately opens or closes the opening 12 defined inside the frame portion 15. Further, the shutter 10 can also be provided with a key mechanism at an intermediate portion in the left-right direction, which is the opening and closing direction. By providing the key mechanism, when the user closes the shutter 10 and locks the key mechanism, intrusion through the shutter 10 can be prevented.

[0022] Here, the shutter 10 adopts a mechanism that opens and closes along the left-right direction, but it can also adopt a mechanism that moves along the up-down direction. When the shutter 10 adopts a mechanism that moves along the up-down direction, the emergency lock 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 along the opening / closing direction, and a plurality of slats 13 made of, for example, metal plates are rotatably connected along the left-right direction. Here, an example of the opening / closing direction is the left-right direction shown in FIG. 1 and the like. Also, the slat body 14 may have only one slat 13. The slat body 14 is provided so as to be openable and closable along the left-right direction. Further, the slat body 14 has a winding portion (not shown here) at its left end. In the winding portion, the slats 13 are wound and stored in a substantially cylindrical shape. The opening / closing operation of the slat body 14 may be manual or electric. In the case of manual operation, the user moves the slat body 14 to the right by hand to close the slat body 14. Also, in the case of manual operation, the user moves the slat body 14 to the left by hand to open the slat body 14. On the other hand, in the case of electric operation, the slat body 14 is moved to the right and left by the driving force of a motor (not shown).

[0024] The shutter 10 can take 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. By closing the opening 12 with the shutter 10, it is possible to prevent an intruder from entering the building 11 through the opening 12 and enhance the security. By setting the opening 12 in an open state where it is not closed by the shutter 10, it is possible to perform lighting and ventilation through the opening 12. Further, by setting it in the open state, people and objects can enter and exit through the opening 12.

[0025] The emergency lock portion 20 is a security device that does not inhibit the opening / closing operation of the shutter 10 during normal times and does not allow the opening operation of the shutter 10 when an intruder attempts to enter during an emergency. The emergency lock portion 20 is disposed over substantially the entire area of the slat 13 in the vertical direction at the right end portion of the slat 13. Also, the rib 24 described later is formed over substantially the entire area of the side surface of the frame portion 15 in the vertical direction.

[0026] FIG. 2A is a cross-sectional view showing the closed state of the shutter 10. FIG. 2B is a cross-sectional view showing an intermediate stage of the open state of the shutter 10. FIGS. 2A and 2B are cross-sectional views taken along the cutting plane line A-A of FIG. 1. The same applies to the cross-sectional views after FIG. 3A.

[0027] Referring to FIG. 2A, the shutter 10 is an indoor shutter disposed inside the window 16. Since the shutter 10 is an indoor shutter, when the window 16 is in the closed state, the shutter 10 does not appear on the exterior of the building 11, so the aesthetic appearance of the building 11 can be improved. Here, the shutter 10 may be a normal shutter disposed outside the window 16.

[0028] The shutter 10 of the present embodiment has an emergency lock portion 20. The emergency lock portion 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 lock portion 21 and the opening-side lock portion 22 of the emergency lock portion 20 do not engage. On the other hand, in an emergency as described later with reference to FIG. 3B etc., the slat-side lock portion 21 and the opening-side lock portion 22 of the emergency lock portion 20 engage.

[0029] Referring to FIG. 2A, the emergency lock portion 20 is disposed at the right end portion of the slat main body 14 and is a portion that exhibits a locking function only when an intruder attempts to intrude. Specifically, the shutter 10 has a slat-side lock portion 21 and an opening-side lock portion 22. The slat-side lock portion 21 is a slat 13 disposed at the right end of the slat main body 14. The opening-side lock portion 22 is a portion disposed on the side of the frame portion 15. Here, in normal times shown in FIG. 2A, the inner surface of the slat-side return portion 231 is disposed outside the outer surface of the opening-side return portion 232. With such a configuration, during the opening and closing operation of the slat main body 14, the slat-side return portion 231 and the opening-side return portion 232 do not inadvertently fit or engage, and the emergency lock portion 20 does not hinder the opening and closing operation of the slat main body 14.

[0030] Here, referring to FIG. 1A, the slat-side locking portion 21 is formed over substantially the entire area of the shutter 10 in the vertical direction. Further, referring to FIG. 1A, the opening-side locking portion 22 is formed over substantially the entire area of the frame portion 15 in the vertical direction. With such a configuration, the entire area in the vertical direction of the right end portion of the slat main body 14 is protected by the emergency locking portion 20, and the crime prevention performance of the shutter 10 can be improved.

[0031] In normal times as shown in FIG. 2A etc., the emergency locking portion 20 is in an unlocked state to allow the opening operation of the slat main body 14. Further, in an emergency described later with reference to FIG. 3A etc., the emergency locking portion 20 is configured to be in a locked state to restrict the opening operation of the slat main body 14.

[0032] Further, in the present embodiment, at least one of the slat-side locking portion 21 and the opening-side locking portion 22 has a return portion. As will be described later, a slat-side return portion 231 is formed in the slat-side locking portion 21, and an opening-side return portion 232 is formed in the opening-side locking portion 22.

[0033] Referring to FIG. 2B, the slat-side locking portion 21 has a substantially U-shaped cross-sectional shape 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 described later with a margin. In particular, in the outer-to-inner direction, the internal space of the slat-side locking portion 21 is formed larger than the opening-side locking portion 22. With such a configuration, it is possible to prevent the opening-side return portion 232 of the opening-side locking portion 22 and the slat-side return portion 231 of the slat-side locking portion 21 from fitting together unnecessarily. Further, due to such a configuration, in an emergency when an intruder attempts to enter the building 11, the relative position variation between the slat-side locking portion 21 and the opening-side locking portion 22 is allowed, and the fitting between the slat-side return portion 231 and the opening-side return portion 232 can be realized.

[0034] On the slat-side locking portion 21, a slat-side return portion 231 is formed. The slat-side return portion 231 is a return portion formed near the right end of the outer surface portion of the slat-side locking portion 21. The inner part of the slat-side return portion 231, and the left end portion thereof, protrudes inward. Further, the outer surface of the slat-side return portion 231 is an inclined surface that inclines inward toward the left. With such a configuration, as will be described later, in the event of an emergency, the slat-side return portion 231 and the opening-side return portion 232 engage firmly with each other.

[0035] The opening-side locking portion 22 is a portion disposed on the left side surface of the frame portion 15, and is a substantially hook-shaped portion that protrudes toward the left. In the closed state of the slat main body 14, the opening-side locking portion 22 is sized to be housed inside the slat-side locking portion 21. Further, the opening-side locking portion 22 has an opening-side return portion 232. The opening-side return portion 232 is a portion obtained by folding back the left end portion of the opening-side locking portion 22, and is folded back substantially linearly toward the right.

[0036] The rib 24 is disposed at the opening 12 of the outer portion approaching the emergency locking portion 20. Here, 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 in the closed state of the shutter 10. The rib 24 is, for example, a rod-shaped member made of a metal such as stainless steel and having a substantially rectangular cross section. As will be described later, by providing the rib 24, a rod-shaped member such as a bar 25 is required when prying open the slat main body 14, and the emergency locking portion 20 can be brought into a locked state by using the pressing force of the bar 25.

[0037] Figures 3A, 3B, and 3C are cross-sectional views sequentially showing a situation where an intrusion is attempted.

[0038] Referring to Figure 3A, when an intruder attempts to enter the building 11 from the opening 12, the intruder first uses a jig such as a bar 25 to strike and break the window 16.

[0039] Referring to FIG. 3B, next, the intruder inserts the sharp side end of the bar 25 between the slat side lock portion 21 and the rib 24 and tries to pry open the slat body 14.

[0040] Referring to FIG. 3C, when the intruder inserts the tip of the bar 25 between the rib 24 and the slat side lock portion 21 and tries to pry open the building 11 by rotating the bar 25 clockwise, a force acts to bend the outer surface portion of the slat side lock portion 21 inward. Then, the outer surface of the slat side lock portion 21 bends inward.

[0041] As a result, the slat side return portion 231 of the slat side lock portion 21 and the opening side return portion 232 of the opening side lock portion 22 are fitted together. Thereby, the emergency lock portion 20 is in a locked state. Therefore, even if the intruder tries to open the shutter 10 by moving the slat body 14 to the left, since the emergency lock portion 20 is in the locked state, the intruder cannot move the slat 13 to the left. Furthermore, the intruder cannot peel off the slat 13 outward. Also, the fitting structure of the emergency lock portion 20 cannot be visually recognized from the outside. Therefore, the intruder gives up entering the interior of the building 11 from the opening 12 with the shutter 10 in the open state. Thereby, the crime prevention performance of the shutter 10 can be enhanced.

[0042] That is, according to the shutter 10, in normal times, the shutter can be freely opened according to the user's request. On the other hand, in an emergency when an intruder tries a forced opening operation of the shutter 10, since the emergency lock portion 20 is in the locked state, the opening operation of the slat body 14 cannot be performed. Therefore, it is possible to prevent the intruder from entering the building interior from the opening 12.

[0043] FIGS. 4A, 4B, and 4C are cross-sectional views sequentially showing a situation where an intrusion is attempted in the shutter 10 according to another form.

[0044] The basic configuration of the shutter 10 shown in Fig. 4A and the like is the same as that shown in Fig. 2A and the like, and the difference lies in that at least one of the slat-side locking portion 21 and the opening-side locking portion 22 is configured to be removable in an emergency. In an emergency, since the slat-side locking portion 21 or the opening-side locking portion 22 can be removed, the user can open the slat body 14 even in an emergency and enter and exit through the opening 12.

[0045] Referring to Fig. 4A, a plate 26 is provided inside the outer surface portion of the slat-side locking portion 21. Specifically, the slat-side locking portion 21 has a cross-section that is substantially U-shaped as described above, 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 substantially plate-shaped member that extends separately over the entire vertical range of the shutter 10. The plate 26 is a substantially plate-shaped member and has a slat-side return portion 231. That is, here, 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 portion of the slat-side return portion 231, and further protrudes sharply downward and inward.

[0047] The plate 26 is fixed to the outer surface portion 211 of the slat-side locking portion 21 from the inside. The fixing of the plate 26 to the outer surface portion 211 is performed by fastening using a bolt 27 described later.

[0048] Also, the right end of the plate 26 is disposed on the right side of the right end of the outer surface portion 211 of the slat side lock portion 21. That is, in the left - right direction, the outer surface portion 211 is shorter than the inner surface portion 212. By doing so, when an intruder tries to pry open the shutter 10 using the bar 25, only the plate 26 can be curved, and the outer surface portion 211 of the slat side lock portion 21 can be prevented from curving. From this, when an attempt at intrusion occurs, it is possible to deal with it only by replacing the plate 26, and the maintenance cost of the shutter 10 can be reduced.

[0049] In the closed state of the shutter 10, the right - hand end of the outer surface portion 211 of the slat side lock portion 21 may be on the left side of the left - hand end of the rib 24. By doing so, when an intrusion by the bar 25 occurs, contact between the bar 25 and the outer surface portion 211 of the slat side lock portion 21 can be suppressed, and curving or damage of the outer surface of the slat side lock portion 21 can be suppressed.

[0050] The plate 26 is attached to the outer surface portion 211 of the slat side lock portion 21 by bolts 27. That is, through - holes are formed in the outer surface portion 211, the inner surface portion 212 of the slat side lock portion 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 lock portion 21. The head of the bolt 27 is disposed inside the slat side lock portion 21. Therefore, the attachment work and removal work of the bolt 27 can be performed only from the inside of the building 11 and cannot be performed from the outside of the building 11.

[0051] Here, a key structure can also be provided to the bolt 27. Thereby, only a user having a key can rotate the bolt 27, and the security can be further improved. Also, when a key structure is provided to the bolt 27, it can also be configured so that the bolt 27 can be operated from the outside of the building 11.

[0052] Furthermore, referring to FIG. 4A, when an intruder attempts to enter the building 11 from the opening 12, the intruder first uses a jig such as the bar 25 to break and destroy the window 16.

[0053] Referring to FIG. 4B, the intruder inserts the sharp side end of the bar 25 between the slat side lock portion 21 and the rib 24 and attempts to pry open the slat body 14.

[0054] Referring to FIG. 4C, when the intruder inserts the tip of the bar 25 between the rib 24 and the slat side lock portion 21 and tries to pry open the building 11 by rotating the bar 25 clockwise, the plate 26 bends inward. At this time, since a large force from the bar does not act on the outer surface portion 211 of the slat side lock portion 21, the outer surface portion 211 of the slat side lock portion 21 does 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 lock portion 22 are fitted together. Thereby, the emergency lock portion 20 is in a locked state. Therefore, even if the intruder tries to open the shutter 10 by moving the slat body 14 to the left, since the emergency lock portion 20 is in the locked state, the intruder cannot move the slat 13 to the left. Furthermore, the intruder cannot peel off the slat 13 outward. Furthermore, since the bolt 27 cannot be operated from the outside of the building 11, an intruder existing outside the building 11 cannot operate the bolt 27 to remove the plate 26. Therefore, the intruder will give up entering the inside of the building 11.

[0056] FIG. 5A is a cross-sectional view showing a situation where the lock of the emergency lock portion 20 is released in the shutter 10 according to another embodiment. FIG. 5B is a cross-sectional view showing a situation where the lock of the emergency lock portion is released in the shutter 10 according to another embodiment.

[0057] Referring to FIG. 5A, the user who owns the building 11 pulls out the bolt 27, for example, by rotating it from the inside of the building 11. Then, the fastening between the outer surface portion 211 of the slat-side locking portion 21 and the plate 26 is released, and the slat-side locking portion 21 and the slat main body 14 can move.

[0058] Referring to FIG. 5B, when the user applies a force to the slat main body 14 toward the left side, the slat main body 14 and the slat-side locking portion 21 move toward the left, and the shutter 10 is in an open state. Then, the user removes the plate 26 fitted to the opening-side return portion 232 and attaches a new plate 26 to the outer surface portion 211 of the slat-side locking portion 21 using the bolt 27. As described above, since no large force is applied to the outer surface portion 211 of the slat-side locking portion 21 from the bead 25, it does not deform. Therefore, even if an intruder attempts to break in, the user can deal with it only by replacing the plate 26.

[0059] Referring to FIGS. 6A and 6B, the configuration of the shutter 10 according to still another form will be described. The configuration of the shutter 10 shown in FIGS. 6A and 6B is basically the same as that described with reference to FIGS. 2A and the like, and is different in that it has a slat-side return portion 234 and an opening-side return portion 233. Such a configuration can be applied to all other embodiments.

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

[0061] On the opening-side locking portion 22, an opening-side returning portion 233 is formed. The opening-side returning portion 233 is a portion where the right-side end of the opening-side returning portion 232 is protruded inward. In normal times, when the slat body 14 is opened and closed, the slat-side returning portions 231 and 224 do not engage with the opening-side returning portion 232 and the opening-side returning portion 233. Therefore, the user can smoothly open and close the slat body 14.

[0062] Referring to FIG. 6B, when an intruder attempts to break in using the bar 25 described above, the slat-side locking portion 21 moves inward to the left, and the slat-side returning portion 234 of the slat-side returning portion 231 fits into the opening-side returning portion 233 of the opening-side returning portion 232. The presence of the opening-side returning portion 233 and the slat-side returning portion 234 can further strengthen the fitting between the opening-side locking portion 22 and the slat-side locking portion 21, and further improve the security of the shutter 10.

[0063] Referring to FIGS. 7A to 7C, the configuration of the shutter 10 according to still another form will be described. The configuration of the shutter 10 shown in FIGS. 7A to 7C is basically the same as that described with reference to FIGS. 2A and the like, except that the slat-side returning portion 231 is rotatable by having the hinge portion 28. Such a configuration can be applied to all other embodiments.

[0064] Referring to FIG. 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 entirely across the length direction of the slat-side locking portion 21. The slat-side return portion 231 is configured to be rotatable about the hinge portion 28 as a rotation center. Further, the hinge portion 28 may be configured to bias the slat-side return portion 231 to keep it substantially linear along the left-right direction. That is, the hinge portion 28 may be biased to return to its original linear state when a force acts to rotate the slat-side return portion 231 clockwise or counterclockwise on the paper surface.

[0065] As shown in FIG. 7B, when an intruder attempts to pry open the slat-side return portion 231 with the tip of the bar 25 in order to attempt to enter the room, the slat-side return portion 231 rotates clockwise on the paper surface about the hinge portion 28 as a rotation center.

[0066] Referring to FIG. 7C, as the slat-side return portion 231 rotates clockwise, the slat-side return portion 231 engages with the opening-side return portion 232. When the slat-side return portion 231 and the opening-side return portion 232 engage, the intruder cannot open the slat main body 14 and cannot enter the room. Since the slat-side return portion 231 engages by rotating about the hinge portion 28, its deformation amount is small or almost non-existent. Therefore, even after an intrusion attempt, the slat-side return portion 231 can be reused.

[0067] Referring to FIGS. 8A to 8C, the configuration of the shutter 10 according to still another form will be described. The configuration of the shutter 10 shown in FIGS. 8A to 8C is basically the same as that described with reference to FIGS. 2A and the like, except that it has the flexible member 30. Such a 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 the operation of an intruder. Specifically, as the flexible member 30, a sheet-like or plate-like member made of metal, cloth, or the like is adopted. The flexible member 30 is disposed entirely along the height direction of the slat-side locking portion 21.

[0069] One end side of the flexible member 30 is fixed inside the opening-side locking portion 22. Specifically, one end side of the flexible member 30 is fixed near the right end portion of the opening-side return portion 232 and near the inner side of the opening-side return portion 232. The other end side of the flexible member 30 is connected to the inner operation portion 31. The inner operation portion 31 is disposed inside a hole portion 29 provided through the opening-side locking portion 22.

[0070] Referring to FIG. 8B, when an intruder attempts 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 are fitted together. As a result, the intruder cannot open the slat 13 and cannot enter the room. At this time, the opening-side return portion 232 and the slat-side return portion 231 are fitted together with the flexible member 30 sandwiched therebetween.

[0071] Referring to FIG. 8C, after an intruder's attempt to enter has ended, when a user who is the owner of the building pulls the inner operation portion 31 inward, a tensile force is applied to the flexible member 30. By doing so, the slat-side return portion 231 is displaced toward the right, and the fitting between the slat-side return portion 231 and the opening-side return portion 232 is released. Therefore, the user can move the slat 13 toward the left and open it.

[0072] Here, the inner operation portion 31 can also be disposed outside the slat main body 14. Thereby, the user can apply a tensile force to the flexible member 30 from the outside, release the fitting between the slat-side return portion 231 and the opening-side return portion 232, and open the slat 13.

[0073] Referring to FIGS. 9A to 9C, the configuration and operation of yet another form of the shutter 10 will be described. The configuration of the shutter 10 shown in FIGS. 9A to 9C is a combination of the configurations of the shutter 10 shown in FIGS. 7A etc. and FIGS. 8A etc. That is, the 10 shown in FIGS. 9A to 9C has a hinge portion 28 and a flexible member 30.

[0074] Specifically, as shown in FIG. 9A, the slat side return portion 231 and the slat side lock portion 21 main body are rotatably connected via a hinge portion 28. Further, a flexible member 30 is disposed between the opening side return portion 232 and the inner operation portion 31. The inner operation portion 31 is disposed inside the hole portion 29.

[0075] Referring to FIG. 9B, when an intruder attempts to pick the slat side lock portion 21 using the bar 25, the slat side return portion 231 rotates about the hinge portion 28 as a rotation center, and the slat side return portion 231 and the opening side return portion 232 are fitted together. As a result, the intruder cannot open the slat main body 14 and cannot enter the interior. Further, when the slat side return portion 231 and the opening side return portion 232 are engaged, the flexible member 30 is interposed between them.

[0076] Referring to FIG. 9C, after the attempt at intrusion has ended, the user pulls the inner operation portion 31 inward. Then, a tensile force acts on the flexible member 30, and the hinge portion 28 rotates in the opposite direction to the above, so that the fitting between the slat side return portion 231 and the opening side return portion 232 is released. Thereafter, the slat side return portion 231 returns to the state shown in FIG. 9A and can be used again as a part of the shutter 10.

[0077] As described above, the embodiments of the present invention have been described, but the present invention is not limited thereto, and can be modified without departing from the gist of the present invention. Further, the above-described embodiments can be combined with each other.

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

[0079] The shutter according to an embodiment of the present invention is configured to appropriately cover an opening, and can take a closed state covering the opening and an open state not covering the opening, and includes a slat body composed of a plurality of slats and an emergency lock portion. The emergency lock portion is in an unlocked state during normal times, allowing the opening operation of the slat body, and is in a locked state during emergencies, restricting the opening operation of the slat body. According to the shutter of the present invention, during normal times, the shutter can be freely opened according to the user's request. On the other hand, during an emergency when an intruder attempts a forced opening operation of the shutter, the emergency lock portion becomes locked, preventing the opening operation of the slat body. Therefore, it is possible to prevent the intruder from entering the building through the opening.

[0080] Further, in the shutter according to an embodiment of the present invention, the emergency lock portion includes a slat-side lock portion disposed on the side of the slat body and an opening-side lock portion disposed on the side of the opening. During normal times, the slat-side lock portion and the opening-side lock portion are not engaged, and during emergencies, the slat-side lock portion and the opening-side lock portion are engaged. According to the shutter of the present invention, during emergencies, the engagement of the slat-side lock portion and the opening-side lock portion can surely prevent an intruder from opening the slat body.

[0081] Further, in the shutter according to an embodiment of the present invention, at least one of the slat-side lock portion and the opening-side lock portion has a return portion. According to the shutter of the present invention, the fitting of the return portion strengthens the engagement between the slat-side lock portion and the opening-side lock portion during emergencies, and can more firmly prevent the opening operation of the slat body by an intruder.

[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, in an emergency, since the slat-side locking portion or the opening-side locking portion can be removed, the user can open the slat body even in an emergency and enter and exit through the opening.

[0083] In addition, in the shutter according to the embodiment of the present invention, the removal is characterized in that it is performed from the inside of the building. According to the shutter of the present invention, since the removal is performed from the inside of the building, it is possible to prevent an intruder from performing the removal.

[0084] In addition, in the shutter according to the embodiment of the present invention, ribs are provided in the opening of the outer portion approaching the emergency locking portion. According to the shutter of the present invention, by providing the ribs, a rod-shaped member such as a bar is required when prying open the slat body, and the emergency locking portion can be locked by utilizing the pressing force of the bar.

[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 are characterized by having a return portion. According to the shutter of the present invention, by forming return portions on both the slat-side locking portion and the opening-side locking portion, the fitting 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, return sites are respectively formed on the slat-side locking portion and the opening-side locking portion. According to the shutter of the present invention, in an emergency, the fitting between the slat-side locking portion and the opening-side locking portion can be further strengthened by the fitting of the return sites with each other.

[0087] In addition, in the shutter according to the embodiment of the present invention, the slat-side locking portion has a removable plate, a slat-side return portion is formed on the plate, an opening-side return portion is formed on the opening-side locking portion, and normally, the slat-side return portion and the opening-side return portion do not engage with each other, and in the event of an emergency, the slat-side return portion and the opening-side return portion engage with each other. According to the shutter of the present invention, since the slat-side return portion is formed on the plate, even if the shutter is pried open, the shutter can be reused only by 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 be deformed during entry, and deformation of the main body portion of the slat-side locking portion can be suppressed.

[0089] In addition, in the shutter according to the embodiment of the present invention, in the closed state of the slat main body, an end portion of the outer surface portion on the side approaching the frame portion is disposed at a distance from the frame portion farther than an end portion of the inner surface portion on the side approaching 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 Signs

[0090] 10 Shutter 11 Building 12 Opening 13 Slat 14 Slat Main Body 15 Frame Portion 16 Window 20 Emergency Locking Portion 21 Slat-Side Locking Portion 211 Outer Surface Portion 212 Inner Surface Portion 22 Opening-Side Locking Portion 231 Slat side return part 232 Opening side return part 233 Opening side return site 234 Slat side return site 24 Rib 25 Bar 26 Plate 27 Bolt 28 Hinge part 29 Hole part 30 Flexible member 31 Inner operation part

Claims

1. configured to appropriately cover the opening, able to take a closed state covering the opening and an open state not covering the opening, an opening / closing body main body movable along the opening / closing direction, and an emergency lock portion, wherein the emergency lock portion, is in an unlocked state during normal times, allowing the opening operation of the opening / closing body main body, is in a locked state during emergencies, and is configured to restrict the opening operation of the opening / closing body main body, the emergency lock portion has an opening / closing body side lock portion disposed on the side of the opening / closing body main body and an opening side lock portion disposed on the side of the opening, during normal times, the opening / closing body side lock portion and the opening side lock portion are not engaged, during emergencies, the opening / closing body side lock portion and the opening side lock portion are configured to be engaged, the opening / closing body side lock portion is rotatably disposed, the opening / closing body side lock portion has an opening / closing body side lock portion main body and an opening / closing body side return portion, the opening / closing body side return portion is connected to the opening / closing body side lock portion main body via a hinge portion, characterized by an opening / closing structure.

2. A locker having the opening / closing structure according to Claim 1.

3. A shutter having the opening / closing structure according to Claim 1.

Images