Casing

Abstract

To achieve both simple operation and safety.SOLUTION: Provided is a casing, wherein an outer box and an inner box that can be stored inside the outer box and in which tools used for fire fighting activities are placed, and the inner box includes inner box rails fixed to outer sides of the inner box, the outer box including a gear-shaped movable part that is disposed inside the outer box and meshes with the inner box rail, a locking member that contacts the inner box rail to limit the movement direction of the inner box to one direction, and a lock control unit that switches whether the inner box rail and the locking member contact each other.SELECTED DRAWING: Figure 12

Description

[Technical Field]

[0001] The present invention relates to a housing. [Background technology]

[0002] In recent years, housings for storing tools used in firefighting activities, such as fire extinguishers, have been developed. For example, Patent Document 1 discloses a fire hydrant device provided with a stopper mechanism that holds a fire hydrant valve opening / closing lever in a closed position to prevent it from moving in the opening direction. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-22513 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the fire hydrant device disclosed in Patent Document 1, it is difficult to prevent the fire hydrant valve opening / closing lever from moving in the opening direction when the door is open.

[0005] Therefore, the present invention has been made in consideration of the above problems, and an object of the present invention is to provide a new and improved housing that is capable of achieving both easy operation and safety. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, according to one aspect of the present invention, there is provided a housing comprising: an outer box; and an inner box that can be stored inside the outer box and in which tools used for fire extinguishing activities are placed, the inner box comprising an inner box rail fixed to the outside of a side of the inner box, the outer box comprising: a gear-shaped movable part that is placed inside the outer box and meshes with the inner box rail; a locking member that contacts the inner box rail to limit the direction of movement of the inner box to one direction; and a lock control unit that switches whether or not the inner box rail and the locking member come into contact.

[0007] The locking member may contact the inner box rail to limit the movement direction of the inner box to only the upward direction.

[0008] The housing may further include a fixing portion arranged on the inner box rail, and the lock control portion may switch whether or not the locking member is fixed by the fixing portion, thereby switching whether or not the inner box rail and the locking member are in contact with each other.

[0009] The inner box rail may also be provided with a release portion that switches whether or not the locking member is fixed by the fixing portion by contacting the lock control portion during the process of storing the inner box into the outer box. [Effects of the Invention]

[0010] As described above, according to the present invention, it is possible to achieve both easy operation and safety. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a diagram showing an example of the arrangement of a housing 10 according to an embodiment of the present invention. [Figure 2] 10A and 10B are diagrams for explaining the transition from a fully closed state to a fully open state of the housing 10 according to the embodiment. [Figure 3] 10 is a diagram showing an example of removal of the fire extinguisher 80 according to the embodiment. FIG. [Figure 4]2 is a diagram illustrating an example of a basic configuration of an outer box 100 according to the embodiment. FIG. [Figure 5] 10A and 10B are diagrams illustrating an example of a basic configuration of an inner box 200 according to the embodiment. [Figure 6] 10A and 10B are diagrams illustrating an example of a basic configuration of an inner box 300 according to the embodiment. [Figure 7] 2 is a diagram showing the basic internal structure of a housing 10 according to the embodiment. FIG. [Figure 8] FIG. 8 is an enlarged view of an area D in FIG. [Figure 9] 10 is a diagram for explaining the rotation direction of a gear 140 according to the embodiment. FIG. [Figure 10] 10 is a diagram for explaining the rotation direction of a gear 140 according to the embodiment. FIG. [Figure 11] 4A and 4B are diagrams illustrating an example of the arrangement of members constituting the locking mechanism according to the embodiment. [Figure 12] 10A and 10B are diagrams illustrating a locked state and an unlocked state of the locking mechanism according to the embodiment. [Figure 13] 10 is a diagram for explaining in detail the arrangement of a gear 160 and a second fixing portion 165 in the locking mechanism according to the embodiment. FIG. [Figure 14] 10A and 10B are diagrams for explaining in detail the configuration of a locking member 170 in the locking mechanism according to the embodiment. [Figure 15] 10 is a diagram for explaining in detail the connection between the locking member 170 and the gear 160 in the locking mechanism according to the embodiment, and the fixing of the first fixing portion 175 by the second fixing portion 165. FIG. [Figure 16] 10 is a diagram for explaining in detail the configuration of a lock control unit 180 in the lock mechanism according to the embodiment. FIG. [Figure 17] 10 is a diagram for explaining in detail the connection between a lock member 170 and a lock control unit 180 in the lock mechanism according to the embodiment. FIG. [Figure 18] 3A and 3B are diagrams illustrating in detail the configuration of a locking mechanism according to the embodiment. [Figure 19]10A and 10B are diagrams illustrating automatic release of a locked state by a lock release unit 350 according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this specification and drawings, components having substantially the same functional configurations are designated by the same reference numerals, and redundant explanations will be omitted.

[0013] In addition, in this specification and drawings, when multiple identical components are to be described separately, letters or the like may be added to the end of the reference numerals. On the other hand, when it is not necessary to distinguish between multiple identical components, the letters or the like may be omitted and a description common to all of the multiple identical components may be given.

[0014] <1. Embodiment> <1.1.Basic configuration> An example of the basic configuration of the housing 10 according to one embodiment of the present invention will be described below. First, an example of the arrangement of the housing 10 according to one embodiment of the present invention and the transition from the fully closed state to the fully open state will be described with reference to Figs. 1 and 2.

[0015] FIG. 1 is a diagram showing an example of the arrangement of a housing 10 according to an embodiment of the present invention.

[0016] The lower right side of Fig. 1 shows a front view of the housing 10 in a fully closed state as seen from the roadway RW side. The lower left side of Fig. 1 shows a side view of the housing 10 in a fully closed state. The upper right side of Fig. 1 shows a front view of the housing 10 in a fully open state as seen from the roadway RW side. The upper left side of Fig. 1 also shows a side view of the housing 10 in a fully open state. Hereinafter, the side of the housing 10 facing the roadway RW will be referred to as the front, and the side of the housing 10 facing the passage PW will be referred to as the back.

[0017] 1, the housing 10 according to this embodiment is installed, for example, in a tunnel or the like, between a roadway RW and a passage PW parallel to the roadway RW. The housing 10 may be installed on a stand 90.

[0018] The passageway PW is provided for people to pass through and perform work. Examples of such work include firefighting and maintenance work. The passageway includes not only passage for carrying out the work but also passage for evacuation.

[0019] FIG. 2 is a diagram for explaining the transition of the housing 10 according to this embodiment from the fully closed state to the fully open state.

[0020] A front view showing the transition of the housing 10 from the fully closed state to the fully open state is shown on the right side of Fig. 2. A rear view showing the transition of the housing 10 from the fully closed state to the fully open state is shown on the left side of Fig. 2. In addition, a side view showing the transition of the housing 10 from the fully closed state to the fully open state is shown in the center of Fig. 2.

[0021] The housing 10 according to this embodiment includes an outer box 100, an inner box 200 that can be stored inside the outer box 100, and an inner box 300 that can be stored inside the inner box 200 and in which tools used for firefighting activities are placed.

[0022] The fire extinguisher 80 is an example of an instrument used in fire fighting activities.

[0023] The upper surface of the housing 10 according to this embodiment is formed by a part of the inner box 300. In other words, the upper surface of the housing 10 is the upper surface of the inner box 300.

[0024] A handle 310 is provided on the top surface of the inner box 300 according to this embodiment. An operator (a person engaged in firefighting activities, a maintenance worker, or the like) can hold the handle 310 from, for example, the roadway RW side or the passage PW side and pull the inner box 300 upward to place the housing 10 in a fully open state (a state in which the inner box 300 is located at the top end of the movable range).

[0025] The inner box 200 (front side) in this embodiment functions as a lid that closes the front opening 120 formed on the front side of the outer box 100 when the housing 10 is in a fully closed state (when the inner box 300 is positioned at the bottom end of the movable area).

[0026] Furthermore, one of the features of the inner box 200 according to this embodiment is that it moves downward in conjunction with the upward movement of the inner box 300.

[0027] Due to the above-mentioned features, when the housing 10 is fully opened, the front opening 120 of the outer box 100 is exposed.

[0028] FIG. 3 is a diagram showing an example of how the fire extinguisher 80 according to this embodiment is removed.

[0029] When the housing 10 is fully open, the fire extinguisher 80 placed in the inner box 300 protrudes from the surface of the passage PW, so that the operator can easily remove the fire extinguisher 80 from the passage PW side, as shown on the left side of Figure 3.

[0030] Furthermore, as described above, when the housing 10 is fully open, the front opening 120 of the outer box 100 is open, and therefore the operator can easily remove the fire extinguisher 80 from the roadway RW side through the front opening 120, as shown on the right side of Figure 3.

[0031] When changing the housing 10 from the fully open state to the fully closed state, the operator only needs to perform an operation to release the locked state, which will be described later, and then grasp the handle 310 and push the inner box 300 downward.

[0032] In conjunction with the downward movement of the inner box 300 due to the above operation, the inner box 200 moves upward, thereby closing the front opening 120 of the outer box 100.

[0033] As described above, the inner box 200 according to this embodiment moves in the opposite direction to the inner box 300 as the inner box 300 moves up and down.

[0034] If a handle, recess, or other configuration is provided on the surface of inner box 200 on the side of front opening 120, the operator can also use this configuration to move inner box 200 up and down.

[0035] In this case, the inner box 300 according to this embodiment moves in the opposite direction to the inner box 200 as the inner box 200 moves up and down.

[0036] The basic configuration for realizing the interlocking of the inner box 300 and the inner box 200 as described above will be described in detail below.

[0037] FIG. 4 is a diagram illustrating an example of the basic configuration of the outer box 100 according to this embodiment.

[0038] 4 shows a top view, a bottom view, a front view, a side view, a rear view, a cross-sectional view taken along lines AA, BB, and CC of the outer box 100. In FIG.

[0039] As shown in FIG. 4, the outer box 100 according to this embodiment has an upper opening 110 on the upper surface and a front opening 120 on the front surface.

[0040] The top opening 110 is a structure that allows the inner box 300 to move up and down. When the inner box 300 according to this embodiment moves upward through the top opening 110, the fire extinguisher 80 is opened.

[0041] The top, bottom, front, sides and rear of the outer box 100, excluding the top opening 110 and front opening 120, are formed of metal plates (indicated by dots).

[0042] Additionally, the outer box 100 according to this embodiment is provided with two gear mounting hardware 130A and 130B that extend downward from the top surface.

[0043] Two gears 140A1 and 140A2 are attached to the gear mounting bracket 130A, and two gears 140B1 and 140B2 are attached to the gear mounting bracket 130B.

[0044] Gears 140A1 and 140A2 fit (mesh) with inner box rail 240A (see FIG. 5) provided on inner box 200 and inner box rail 340A (see FIG. 6) provided on inner box 300.

[0045] Similarly, gears 140B1 and 140B2 mate with inner box rails 240B (see FIG. 5) provided on inner box 200 and inner box rails 340B (see FIG. 6) provided on inner box 300.

[0046] The gear 140 according to this embodiment is an example of a movable part. The movable part is not limited to the gear 140, and may be any member that can realize the interlocking of the inner box 300 with the inner box 200.

[0047] Additionally, the outer box 100 is provided with rollers 150A and 150B on the inner side.

[0048] The roller 150A is configured to press the inner box rail 240A against the gear 140A2 to prevent derailment.

[0049] Similarly, roller 150B is configured to press inner box rail 240B against gear 140B2 to prevent derailment.

[0050] Next, with reference to FIG. 5, an example of the basic configuration of the inner box 200 according to this embodiment will be described.

[0051] 5 shows a top view, a bottom view, a front view, a side view, a rear view, a cross-sectional view taken along lines AA and BB of the inner box 200. In FIG.

[0052] The front, sides and back of the inner box 200 are formed from metal plates (indicated by dots).

[0053] The inner box 200 according to this embodiment is provided, on its inner lateral side, with an inner box rail 240A that fits with the gears 140A1 and 140A2, and an inner box rail 240B that fits with the gears 140B1 and 140B2.

[0054] Furthermore, inner box 200 according to this embodiment includes magnets 230A and 230B arranged on the bottom surface.

[0055] Magnets 230A and 230B are configured to maintain housing 10 in a fully open state.

[0056] When the housing 10 is fully open, the inner box 200 is located at the lowest end of the movable range. At this time, the magnets 230A and 230B are attracted to the upper surface of the bottom plate of the outer box 100, thereby fixing the inner box 200 and the inner box 300 in place.

[0057] It should be noted that magnet 230 according to the present embodiment is an example of a fixing portion. The fixing portion is not limited to magnet 230, and may be any member that can fix inner box 300 and middle box 200 together and maintain housing 10 in the fully open state.

[0058] Next, an example of the basic configuration of the inner box 300 according to this embodiment will be described with reference to FIG.

[0059] 6 shows a top view, a bottom view, a front view, a side view, a rear view, a cross-sectional view taken along lines AA and BB of the inner box 300. In FIG.

[0060] The upper and lower surfaces of the inner box 300 are formed from metal plates (indicated by dots).

[0061] As described above, the handle 310 is provided on the top surface of the inner box 300.

[0062] Furthermore, inner box 300 according to this embodiment is provided, on its outer lateral side, with inner box rail 340A that fits with gears 140A1 and 140A2, and inner box rail 340B that fits with gears 140B1 and 140B2.

[0063] Inner box rails 340A and 340B also function as connecting members for the top and bottom surfaces.

[0064] The configuration examples of the outer box 100, the middle box 200, and the inner box 300 according to this embodiment have been described in detail above.

[0065] Next, the operations of gear 140, middle box rail 240, and inner box rail 340 according to this embodiment will be described in detail.

[0066] Fig. 7 is a diagram showing the basic internal structure of the housing 10 according to this embodiment, and Fig. 8 is an enlarged view of area D in Fig. 7.

[0067] Gears 140A1 and 140A2 attached to gear mounting hardware 130A provided on outer box 100 are positioned so that they can fit into inner box rail 240A provided on the inside side of inner box 200 and inner box rail 340A provided on the outside side of inner box 300.

[0068] Similarly, gears 140B1 and 140B2 attached to gear mounting hardware 130B provided on outer box 100 are positioned so that they can fit into inner box rail 240B provided on the inside side of inner box 200 and inner box rail 340B provided on the outside side of inner box 300.

[0069] Furthermore, rollers 150A provided on the inner side of outer box 100 press inner box rail 240A against gear 140A2, thereby making the fit between inner box rail 240A, gear 140A, and inner box rail 340A stronger.

[0070] Similarly, rollers 150B provided on the inside sides of outer box 100 press inner box rail 240B against gear 140B2, thereby making the fit between inner box rail 240B, gear 140B, and inner box rail 340B stronger.

[0071] According to the above configuration, as shown in Fig. 9, upward movement of inner box 300, i.e., upward movement of inner box rail 340A, causes gear 140A2 to rotate counterclockwise. Furthermore, counterclockwise rotation of gear 140A2 pushes inner box rail 240A downward, causing inner box 200 to move downward.

[0072] 10, downward movement of inner box 300, i.e., downward movement of inner box rail 340A, causes gear 140A2 to rotate clockwise. Furthermore, the clockwise rotation of gear 140A2 pushes inner box rail 240A upward, causing inner box 200 to move upward.

[0073] It should be noted that gear 140A1 rotates in the same direction as gear 140A2, and gears 140B1 and 140B2 rotate in the opposite direction to gears 140A1 and 140A2.

[0074] According to the configuration described above, the middle box 200 and the inner box 300 can be linked together.

[0075] <1.2. Locking mechanism> An example of the basic configuration of the housing 10 according to this embodiment has been described above. Next, the locking mechanism provided in the housing 10 according to this embodiment will be described in detail.

[0076] The housing 10 according to this embodiment includes a locking mechanism that limits the direction in which the inner box 300 and the inner box 200 can move, in addition to the configuration described above in <1.1. Basic configuration example>.

[0077] As described above, the inner box 200 according to this embodiment moves upward in conjunction with the downward movement of the inner box 300. Moreover, the inner box 200 according to this embodiment moves downward in conjunction with the upward movement of the inner box 300.

[0078] The locking mechanism of this embodiment may disable downward movement of the inner box 300 and the associated upward movement of the middle box 200, and may limit the movement direction of the inner box 300 to one downward direction and the movement direction of the middle box 200 to one upward direction.

[0079] The locking mechanism according to this embodiment is made up of a plurality of members for realizing the above.

[0080] FIG. 11 is a diagram showing an example of the arrangement of members constituting the locking mechanism according to this embodiment.

[0081] The locking mechanism according to this embodiment includes, for example, a second fixing portion 165 arranged on the inner box rail 340, a locking member 170 having a first fixing portion 175 (shown with a dot pattern) fixed to the second fixing portion 165, and a lock control portion 180 that switches whether or not the second fixing portion 165 is fixed to the first fixing portion 175.

[0082] The locking mechanism according to this embodiment is attached to the gear 160 .

[0083] Figure 11 illustrates an example in which a second fixing portion 165A, a locking member 170A, and a lock control portion 180A are attached to a gear 160A placed on a gear mounting hardware 130A, and a second fixing portion 165B, a locking member 170B, and a lock control portion 180B are attached to a gear 160B placed on a gear mounting hardware 130B.

[0084] The gear 160 according to this embodiment may be, for example, the gear arranged at the top of the multiple gears arranged on the gear mounting hardware 130.

[0085] For example, as illustrated in FIG. 7, if two gears 140A1 and 140B2 are arranged on gear mounting bracket 130A and two gears 140B1 and 140B2 are arranged on gear mounting bracket 130B, gears 140A1 and 140B1 correspond to gears 160A and 160B, respectively.

[0086] Next, the unlocked and locked states of the locking mechanism according to this embodiment will be described with reference to FIG.

[0087] In the drawings referred to below, the configurations of second fixing portion 165A, locking member 170A, and lock control portion 180A attached to gear 160A are illustrated as examples, but second fixing portion 165B, locking member 170B, and lock control portion 180B attached to gear 160B also have similar configurations.

[0088] For this reason, in the following, when there is no need to distinguish between multiple identical components, the alphabet or other characters at the end of the reference numeral will be omitted, and a description common to all multiple identical components will be provided. For example, when there is no need to distinguish between locking member 170A and locking member 170B, they will simply be referred to as locking member 170, and a description common to both locking member 170A and locking member 170B will be provided.

[0089] The locking mechanism in an unlocked state is shown on the left side of Figure 12. The unlocked state in this embodiment refers to a state in which first fixing portion 175, which is located near one end of locking member 170, is fixed to second fixing portion 165, and locking member 170 is not in contact with inner box rail 340.

[0090] In the unlocked state according to this embodiment, there is no restriction on the movement of the inner box 300, and the inner box 300 can move up and down. Furthermore, the middle box 200 can move in the opposite direction to the inner box 300 in conjunction with the up and down movement of the inner box 300.

[0091] Meanwhile, the locking mechanism in a locked state is shown on the right side of Fig. 12. The locked state according to this embodiment refers to a state in which first fixing portion 175 arranged near one end of locking member 170 is not fixed to second fixing portion 165, and locking member 170 is in contact with inner box rail 340.

[0092] More specifically, in the locked state according to this embodiment, the vicinity of one end of locking member 170 comes into contact with the concave-convex structure of inner box rail 340 so as to support it from below. This prevents inner box 300 from moving downward and allows it to move only upward. Similarly, inner box 200 prevents it from moving upward and allows it to move only downward.

[0093] That is, locking member 170 according to this embodiment limits the movement direction of inner box 300 and inner box 200 to one direction by coming into contact with the inner box rail.

[0094] According to the above configuration, for example, even if the operator releases the handle 310 while operating the housing 10 to the fully open state, the inner box 300 will not move downward, thereby preventing damage to equipment, injury, etc. due to the inner box 300 falling.

[0095] The unlocked state and the locked state according to this embodiment can be switched by the lock control unit 180.

[0096] The lock control unit 180 according to this embodiment is rotatably connected to a lock control unit rotation shaft 177 provided on the lock member 170 .

[0097] Furthermore, the locking member 170 according to this embodiment is rotatably connected to a gear rotation shaft 167 provided on the gear 160 .

[0098] Therefore, when in the locked state, if a force is applied to the lock control unit 180 to push the lock control unit 180 toward the inner box rail 340, the lock member 170 rotates around the gear rotation axis 167 as a fulcrum, thereby fixing the first fixing portion 175 to the second fixing portion 165 and entering the unlocked state.

[0099] Conversely, in the unlocked state, when a force is applied to the lock control unit 180 that pulls the lock control unit 180 toward the center of the housing 10 or that pushes the lock control unit 180 downward, the lock member 170 rotates around the gear rotation axis 167 as a fulcrum, thereby releasing the fixation of the first fixing unit 175 by the second fixing unit 165 and entering a locked state.

[0100] In this way, the lock control unit 180 of this embodiment switches whether the first fixing portion 175 is fixed by the second fixing portion 165, thereby switching whether the locking member 170 contacts the inner box rail 340 or not, i.e., switching between a locked state and an unlocked state.

[0101] The lock control unit 180 according to this embodiment may be operated by, for example, an operator. For example, when the housing 10 is in a fully open state (or while the door is being opened), the operator can insert their hand through the front opening 120 and pull the lock control unit 180 toward the center of the housing 10 or press the lock control unit 180 downward to switch to the unlocked state.

[0102] By the above operation, the restriction on the movement direction of the inner box 300 and the middle box 200 is released, and the door of the housing 10 can be closed.

[0103] Furthermore, switching from the unlocked state to the locked state according to this embodiment may be performed without manual intervention by a later-described release unit 350 (see FIG. 19) pressing down on the lock control unit 180.

[0104] The unlocked state and locked state of the locking mechanism according to this embodiment have been described above.

[0105] Next, the configuration of the locking mechanism according to this embodiment will be described in more detail with reference to FIGS.

[0106] FIG. 13 is a diagram for explaining in detail the arrangement of the gear 160 and the second fixing portion 165 in the locking mechanism according to this embodiment.

[0107] FIG. 14 is a diagram for explaining in detail the configuration of the locking member 170 in the locking mechanism according to this embodiment.

[0108] FIG. 15 is a diagram for explaining in detail the connection between the locking member 170 and the gear 160 in the locking mechanism according to this embodiment, and the fixation of the first fixing portion 175 by the second fixing portion 165. In FIG.

[0109] FIG. 16 is a diagram for explaining in detail the configuration of the lock control unit 180 in the lock mechanism according to this embodiment.

[0110] FIG. 17 is a diagram for explaining in detail the connection between the locking member 170 and the lock control section 180 in the locking mechanism according to this embodiment.

[0111] First, with reference to FIG. 13, the arrangement of the gear 160 and the second fixing portion 165 in the locking mechanism according to this embodiment will be described in detail.

[0112] 13 shows a front view, a top view, and a side view focusing on gear 160 and second fixing portion 165. In the side view, priority is given to visibility, and inner box rail 340 is omitted.

[0113] 13, the gear 160 according to this embodiment may be disposed near the upper end of the gear mounting hardware 130. The gear 160 rotates around a gear rotation axis 167.

[0114] The second fixing portion 165 according to this embodiment is disposed above the gear 160 in the gear mounting hardware 130, for example, as shown in FIG.

[0115] Furthermore, two second fixed portions 165 according to this embodiment may be arranged for one gear 160. Fig. 13 illustrates a case where two second fixed portions 165A1 and 165A2 are arranged for a gear 160A.

[0116] Next, the configuration of the locking member 170 in the locking mechanism according to this embodiment will be described in detail with reference to FIG.

[0117] 14 shows a front view, a top view, and a side view focusing on lock member 170. In the side view, priority is given to visibility, and inner box rail 340 is omitted.

[0118] Two locking members 170 according to this embodiment may be arranged for one gear 160. Fig. 14 illustrates a case where two locking members 170A1 and 170A2 are arranged for a gear 160A.

[0119] Each of the locking members 170 includes a first fixing portion 175 at one end.

[0120] Next, the connection between the locking member 170 and the gear 160 in the locking mechanism according to this embodiment, and the fixing of the first fixing portion 175 by the second fixing portion 165 will be described in detail with reference to FIGS.

[0121] 15 shows a front view, a top view, and a side view focusing on gear 160, second fixing portion 165, and locking member 170. In the side view, priority is given to visibility, and inner box rail 340 is omitted.

[0122] 15, each of the locking members 170 is connected at the other end to the gear rotation shaft 167. This makes each of the locking members 170 rotatable about the gear rotation shaft 167, and the rotation of the locking member 170 makes it possible to switch between fixing the first fixing portion 175 by the second fixing portion 165.

[0123] In this embodiment, the first fixing portion 175 has a convex structure and the second fixing portion 165 has a concave structure, but the shapes, actions, etc. of the first fixing portion 175 and the second fixing portion 165 are not limited to this example. The first fixing portion 175 and the second fixing portion 165 may be, for example, magnets, etc.

[0124] As shown in FIG. 14, each of the locking members 170 according to this embodiment includes a lock control section rotation shaft 177 between one end and the other end.

[0125] Next, the configuration of the lock control section 180 in the lock mechanism according to this embodiment and the connection between the lock member 170 and the lock control section 180 will be described in detail with reference to FIGS.

[0126] 16 shows a front view, a top view, and a side view focusing on lock control section 180. In the side view, priority is given to visibility, and inner box rails 340 are omitted.

[0127] 17 shows a front view, a top view, and a side view focusing on lock member 170 and lock control section 180. In the side view, priority is given to visibility, and inner box rails 340 are omitted.

[0128] As shown in FIG. 16, the lock control section 180 according to this embodiment has an opening 187 for connection to the lock control section rotation shaft 177 provided in each of the lock members 170.

[0129] The lock control section 180A illustrated in FIG. 16 includes openings 187A1 and 187A2 for connection with the lock control section rotation shaft 177A1 of the lock member 170A1 and the lock control section rotation shaft 177B1 of the lock member 170B1, respectively.

[0130] This allows the lock control unit 180 to rotate around the lock control unit rotation axis 177, and each of the lock members 170 can rotate around the lock control unit rotation axis 177 as the force point and the gear rotation axis 167 as the fulcrum, so that the rotation of the lock member 170 can switch the fixation of the first fixation unit 175 by the second fixation unit 165.

[0131] Lock control section 180 according to this embodiment also includes roller 185. Roller 185 comes into contact with the flat surface of inner box rail 340 and rotates as inner box rail 340 moves up and down, thereby reducing friction.

[0132] 13 to 17, the arrangement of gear 160 and second fixing portion 165, the configuration of locking member 170, the connection between locking member 170 and gear 160, the fixation of first fixing portion 175 by second fixing portion 165, the configuration of lock control portion 180, and the connection between locking member 170 and lock control portion 180 have been described in detail.

[0133] For reference, FIG. 18 is attached, which shows the configuration of the locking mechanism according to this embodiment in detail.

[0134] 18 shows a front view, a top view, and a side view focusing on gear 160, second fixing portion 165, locking member 170, and lock control portion 180. In the side view, priority is given to visibility, and inner box rail 340 is omitted.

[0135] Next, automatic switching to the unlocked state by the unlocking unit 350 according to this embodiment will be described with reference to FIG.

[0136] The upper part of FIG. 19 shows a front view of the locking mechanism just before the housing 10 is fully closed, and the lower part of FIG. 19 shows a front view of the locking mechanism when the housing 10 is fully closed.

[0137] As shown in FIG. 19, a fixing release portion 350 is disposed near the upper end of inner box rail 340 according to this embodiment.

[0138] The release unit 350 of this embodiment is configured to come into contact with the lock control unit 180 when the housing 10 is in the fully closed state, and to press the lock control unit 180 downward, thereby releasing the fixation of the first fixing unit 175 by the second fixing unit 165 and setting the locking mechanism to the unlocked state.

[0139] As described above, in the locked state of this embodiment, downward movement of the inner box 300 is restricted, but the operator can switch to the unlocked state by grasping the handle 310 and maintaining the height of the inner box 300, and then pulling the lock control unit 180 toward the center of the housing 10 or pressing the lock control unit 180 downward.

[0140] In the unlocked state, the weight of fire extinguisher 80 naturally causes it to move downward. As inner box 300 moves downward, lock release part 350 presses lock control part 180 downward, causing lock member 170 connected to lock control part 180 to rotate around gear rotation shaft 167 as a fulcrum, thereby releasing the fixation of first fixing part 175 by second fixing part 165 and entering a locked state.

[0141] That is, the release unit 350 of this embodiment comes into contact with the lock control unit 180 during the process of storing the inner box 300 in the outer box 100, thereby switching whether or not the locking member 170 is fixed by the second fixing unit 165, and ultimately switching whether or not the inner box rail 340 and the locking member 170 are in contact with each other.

[0142] <2. Effects> Next, the effects achieved by the housing 10 according to one embodiment of the present invention will be described.

[0143] If the weight of each fire extinguisher 80 is about 9 kg (including about 6 kg of extinguishing agent), the total weight of the inner box 300 in which two fire extinguishers 80 are placed will be considerable, but in the housing 10 according to this embodiment, the extinguisher can be operated by applying a force (= G) equal to or greater than the weight difference (assuming a provisional weight difference of 9.8 N = 1 kg) between the inner box 300 (in a state in which two fire extinguishers 80 are stored) and the middle box 200. In other words, the housing 10 according to this embodiment achieves a reduction in the operating force.

[0144] Furthermore, with the configuration of the housing 10 according to one embodiment of the present invention, the inner box 300 does not fall freely, so damage to equipment, injury, etc. due to the inner box 300 falling can be prevented.

[0145] Furthermore, if the adhesive force between the magnets 230A and 230B provided on the inner box 200 and the outer box 100 is set to the above G (e.g., 15 N), the fully open state can be maintained even when two fire extinguishers 80 are stored in the inner box 300, further improving safety.

[0146] Furthermore, according to the configuration of the housing 10 according to one embodiment of the present invention, in the following situations 1 to 3, the fully closed state cannot be maintained and the housing 10 will automatically enter the fully open state, thereby making it possible to avoid human error, etc.

[0147] Situation 1: Fire extinguisher 80 is not installed (including cases where the maintenance staff forgot to install it, or it is not installed due to theft, etc.)

[0148] Situation 2: Fire extinguisher 80 is implemented, which is 9.8N or more lighter than the specified weight.

[0149] Situation 3: Fire extinguisher 80 is implemented, which is 9.8N or more lighter than the specified weight due to the spraying of fire extinguishing agent.

[0150] Furthermore, according to the configuration of the housing 10 according to one embodiment of the present invention, it is possible to open the door in a way that allows access from two different locations (the passageway PW side and the roadway RW side) with a single operation, which is expected to improve the efficiency of firefighting activities and maintenance work.

[0151] Furthermore, since the housing 10 according to one embodiment of the present invention does not use wires, there is no need to adjust the length of the wires as they elongate due to deterioration over time, and maintenance efficiency is improved.

[0152] Furthermore, by not providing an uneven structure near the upper end of the inner box rail 340, it is possible to configure the inner box 300 so that slight upward movement (for example, movement of about 5 cm) from the fully closed state does not restrict downward movement. This prevents accidental opening of the housing 10 (forgetting to close, etc.), and prevents situations such as pedestrians tripping over the inner box 300 due to the inner box 300 remaining protruding into the passage PW.

[0153] Furthermore, inner box rail 340 and the components that make up the locking mechanism according to this embodiment are simple and inexpensive, which allows for reduced manufacturing costs.

[0154] Furthermore, although the above description has mainly focused on an example in which the locking mechanism limits the movement of the inner box 300 to an upward direction, the locking mechanism of this embodiment can also limit the movement of the inner box 300 to a downward direction by changing the installation orientation.

[0155] Furthermore, although the above description has mainly focused on the case where the locking mechanism limits the movement direction of the inner box 300 to one direction by the locking member 170 contacting the inner box rail 340, the locking mechanism according to this embodiment may also be installed so that the movement direction of the inner box 300 and the inner box 200 is limited to one direction by the locking member 170 contacting the inner box rail 240.

[0156] For example, when the locking member 170 is attached so as to contact and press the uneven structure of the inner box rail 240 from above, the movement direction of the inner box 200 is limited to only downward, and the movement direction of the inner box 300 linked to the inner box 200 is limited to only upward.

[0157] In addition, since both inner box 200 and inner box 300 according to this embodiment can be stored inside the outer box, inner box 200 can be considered a type of inner box. Similarly, inner box rail 240 can be considered a type of inner box rail 340.

[0158] On the other hand, the housing 10 according to this embodiment does not necessarily have to include the inner box 200. The locking mechanism according to this embodiment can prevent the inner box 300 from freely falling even when the housing 10 does not include the inner box 200.

[0159] The locking mechanism according to this embodiment can also be applied to restricting movement in one of the left and right directions. For example, in a tunnel or the like, when a housing equipped with a door that opens left and right (horizontally) is installed on an inclined surface, application of the locking mechanism according to this embodiment can prevent the door from opening or closing naturally.

[0160] <3. Conclusion> As described above, a housing according to one embodiment of the present invention comprises an outer box and an inner box that can be stored inside the outer box and in which tools used for firefighting activities are placed, the inner box comprising inner box rails fixed to the outer side of the inner box, the outer box comprising a gear-shaped movable part that is placed inside the outer box and engages with the inner box rail, a locking member that contacts the inner box rail to limit the direction of movement of the inner box to one direction, and a lock control unit that switches whether or not the inner box rail and the locking member come into contact.

[0161] According to the above-described configuration, it is possible to achieve both easy operation and safety.

[0162] Although the preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not limited to these examples. It is clear that a person skilled in the art to which the present invention pertains can conceive of various modifications and alterations within the scope of the technical ideas set forth in the claims, and it is understood that these also naturally fall within the technical scope of the present invention.

[0163] For example, in the above embodiment, the fire extinguisher 80 is given as an example of an instrument used in firefighting activities. However, the above instrument is not limited to the fire extinguisher 80. The above instrument may include, for example, a nozzle connected to a fire hydrant, a lever used to operate the fire hydrant, a telephone for reporting a fire, etc.

[0164] In addition, in the above embodiment, the case where the housing 10 includes four gears 140 is illustrated, but the number of gears 140 is not limited to this example. The number and arrangement of gears 140 may be adjusted as appropriate within a range that allows the interlocking of the inner box 300 and the middle box 200. [Explanation of symbols]

[0165] 10. Cabinet 100 outer box 110 Top opening 120 Front opening 140, 160 gears 200 medium-sized boxes 230 Magnet 240 Inner box rail 300 inner box 310 Handle 340 Inner box rail 165 Second fixed part 170 Locking member 175 First fixed part 180 Lock control section 185 Roller 350 Fixed release part

Claims

1. An outer box and an inner box that can be stored inside the outer box and in which tools used for fire extinguishing activities are placed, The inner box includes an inner box rail fixed to a lateral outer side of the inner box, The outer box is a gear-shaped movable part that is disposed inside the outer box and engages with the inner box rail; a locking member that contacts the inner box rail to limit the movement direction of the inner box to one direction; a lock control unit that switches whether or not the inner box rail and the locking member are in contact with each other; Equipped with Case.

2. The locking member contacts the inner box rail to limit the movement direction of the inner box to only the upward direction. The housing of claim 1 .

3. a fixing portion disposed on the inner box rail; Furthermore, the lock control unit switches whether the locking member is fixed by the fixing unit, thereby switching whether the inner box rail and the locking member are in contact with each other. The housing of claim 1 .

4. the inner box rail includes a lock release portion that comes into contact with the lock control portion during the process of storing the inner box in the outer box, thereby switching whether or not the locking member is locked by the fixing portion. The housing of claim 3 .

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