Storage box

Abstract

To provide a housing box that can reduce the risk of distortion or deformation occurring in the structure around the axis. [Solution] The mailbox 2 is a storage box having a housing 4 and an outer door connected to the housing 4 via a pivot shaft 10A so as to be able to open and close an opening 400A. The pivot shaft 10A extends in the Y-axis direction on the hinge side, and the outer door has an upper connecting portion 83 through which the upper part of the pivot shaft 10A passes, and a lower connecting portion 84 through which the lower part of the pivot shaft 10A passes. The housing 4 has an upper bearing portion 47 through which the pivot shaft 10A passes at a position above the upper connecting portion 83, a lower bearing portion 48 through which the pivot shaft 10A passes at a position below the lower connecting portion 84, and an intermediate bearing portion 49 through which the pivot shaft 10A passes at a position between the upper connecting portion 83 and the lower connecting portion 84.

Description

Technical Field

[0001] The present invention relates to a storage box for storing luggage.

Background Art

[0002] Conventionally, as a storage box, a delivery box including a housing main body (housing) in which luggage is placed and a door portion (door body) that covers an opening of the housing main body is known (see Patent Document 1). The door portion is pivotally supported by the housing main body via a bearing mechanism such as a hinge on the suspension side thereof, and is provided so as to be able to open and close the opening.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in a delivery box as described in Patent Document 1, a vertical load based on its own weight is applied to the door portion during opening and closing. Therefore, depending on the material, shape, and size of the door portion, distortion and deformation may occur in the structure around the axis, and when such distortion and deformation occur, it may hinder the opening and closing of the door portion. In addition, distortion and deformation of the structure around the axis as described above may occur not only in delivery boxes but also in various storage boxes such as lockers.

[0005] An object of the present invention is to provide a storage box capable of reducing the risk of distortion and deformation occurring in the structure around the axis.

Means for Solving the Problems

[0006] The present invention relates to a storage box comprising a housing having an opening and a storage space continuous with the opening for storing luggage, and a door body connected to the housing on the hanging side via a pivot shaft so as to be able to open and close the opening, wherein the pivot shaft extends vertically on the hanging side, the door body has an upper connecting portion through which the upper part of the pivot shaft passes, and a lower connecting portion through which the lower part of the pivot shaft passes, and the housing is characterized by having an upper bearing portion through which the pivot shaft passes at a position above the upper connecting portion, a lower bearing portion through which the pivot shaft passes at a position below the lower connecting portion, and at least one intermediate bearing portion through which the pivot shaft passes at a position between the upper connecting portion and the lower connecting portion. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a housing box that can reduce the risk of distortion or deformation occurring in the structure around the axis. [Brief explanation of the drawing]

[0008] [Figure 1] A perspective view showing the closed state of a delivery box equipped with a storage box according to an embodiment of the present invention. [Figure 2] A perspective view showing the open state of the aforementioned delivery box. [Figure 3] A perspective view showing the aforementioned delivery box with the outer door omitted. [Figure 4] Figure 3 is a perspective view illustrating a close-up of the main components of the delivery box shown in Figure 3. [Figure 5] Figure 3 is a perspective view illustrating a close-up of the main components of the delivery box shown in Figure 3. [Figure 6] Figure 3 is an explanatory diagram showing a close-up of the main parts of the delivery box. [Modes for carrying out the invention]

[0009] [Structure of this embodiment] Embodiments of the present invention will be described below with reference to the drawings. In Figures 1 to 3, the delivery box 1 (delivery box) equipped with a storage box according to this embodiment is a box for receiving various types of packages, and is made of metal, and in this embodiment, it is made of steel. In this delivery box 1, a mailbox 2 (mailbox, storage box) is provided on the upper level, and a package receiving box 3 (storage box) is provided on the lower level. The mailbox 2 and the package receiving box 3 are configured as storage boxes for storing packages. The mailbox 2 is configured to receive packages such as mail with a small thickness dimension, and the package receiving box 3 is configured to receive packages with a thickness dimension larger than the aforementioned packages. In the following description, the left-right direction of delivery box 1 is defined as the X-axis, the up-down direction of delivery box 1 is defined as the Y-axis, and the front-to-back direction (depth direction) of delivery box 1 is defined as the Z-axis. The X, Y, and Z axes are mutually orthogonal. In addition, the rotation direction of the outer doors 8A and 8B, which will be described later, is defined as the R-axis.

[0010] The delivery box 1 is made of metal, and in this embodiment, it is made of steel. It comprises a housing 4 and outer doors 8A and 8B (front door, door body) that are connected to the housing 4 on the hinge side so as to be openable and closable in the R direction. The steel enclosure 4 comprises a top plate 41, a bottom plate 42, a middle plate 43, left and right side plates 44, 45, and a rear plate 46. A horizontal bar 431 is provided on the front portion of the middle plate 43, oriented along the X-axis. The top plate 41, middle plate 43, left and right side plates 44, 45, and rear plate 46 constitute the housing of the mailbox 2, and the top plate 41, middle plate 43, left and right side plates 44, 45, and rear plate 46 form an opening 400A that is open at the front and a storage space 401A that is continuous with the opening 400A. The top plate 41 constitutes the upper plate of the mailbox 2, the middle plate 43 constitutes the lower plate of the mailbox 2, the part of the side plate 44 above the middle plate 43 constitutes the side plate on the hinge side of the mailbox 2, the part of the side plate 45 above the middle plate 43 constitutes the side plate on the door side of the mailbox 2, and the part of the rear plate 46 above the middle plate 43 constitutes the rear plate of the mailbox 2. Furthermore, the bottom plate 42, middle plate 43, left and right side plates 44, 45 and rear plate 46 constitute the housing of the luggage receiving box 3, and the bottom plate 42, middle plate 43, left and right side plates 44, 45 and rear plate 46 form an opening 400B that is open at the front and a storage space 401B that is continuous with the opening 400B. The bottom plate 42 constitutes the lower plate of the luggage receiving box 3, the middle plate 43 constitutes the upper plate of the luggage receiving box 3, the portion of the side plate 44 below the middle plate 43 constitutes the side plate on the hanging side of the luggage receiving box 3, the portion of the side plate 45 below the middle plate 43 constitutes the side plate on the door-edge side of the luggage receiving box 3, and the portion of the rear plate 46 below the middle plate 43 constitutes the rear plate of the luggage receiving box 3.

[0011] The mailbox 2 comprises the upper part of the housing 4, the aforementioned steel outer door 8A which is openably connected to the housing 4, and a steel inner door 5 which is openably connected to the housing behind the outer door 8A. The outer door 8A is an outward-opening type and has a door body 81 (main body portion) that constitutes the front of the mailbox 2, edge pieces 821, 822, 823, and 824 that are bent backward from the upper edge, lower edge, and left and right vertical edges of the door body 81, respectively, and an upper connecting portion 83 and a lower connecting portion 84 that are joined to the inner surface of the door body 81 on the hinge side (see Figures 1 to 6). The edge piece 823 on the hinge side constitutes a covering portion that covers the pivot shaft 10A from the outside in the X-axis direction (here, the hinge side) when the opening 400A is closed. In addition, a knob 85 for opening and closing operation is provided on the door-side portion of the outer surface of the door body 81 (see Figure 1). This outer door 8A is connected to the housing 4 via a pivot shaft 10A that passes through the upper connecting portion 83 and the lower connecting portion 84, and is provided to be able to open and close in the R direction around the pivot shaft 10A. The pivot shaft 10A is made of steel, is cylindrical in shape, and extends in the Y-axis direction from the top to the bottom of the outer door 8A on the hinge side. In the closed state shown in Figure 1, the outer door 8A in the closed position closes the opening 400A, and in the open state shown in Figure 2, the outer door 8A in the open position opens the opening 400A. The inner door 5 is an outward-opening type and consists of a frame 7 with a mail slot 706 formed therein, through which mail items such as letters with a thickness smaller than the mail received in the mail receiving box 3 can pass. The mail slot 706 is formed with its longitudinal direction extending horizontally in the X-axis direction. The frame 7 is provided with a flap 6 for opening and closing the mail slot 706 (see Figure 2), and a locking device 10 is provided on the door edge side (see Figure 3, etc.). This inner door 5 is rotatably connected to the housing 4 via a hinge pin (not shown) different from the aforementioned pivot shaft 10A, and is designed to close the opening 400A when closed and to open the opening 400A when open. Furthermore, the inner door 5 is configured to be lockable and unlockable by operating the locking device 10. In the mailbox 2 configured in this way, a third party delivering a package opens the outer door 8A, places the package into the mail slot 706 of the inner door 5, and closes the outer door 8A. The placed package is then stored in the storage space 401A. On the other hand, the recipient of a package placed in mailbox 2 opens the outer door 8A and unlocks the locking device 10, then opens the inner door 5 to retrieve the package stored in the storage space 401A, closes the inner door 5 again to lock the locking device 10, and closes the outer door 8A.

[0012] The parcel receiving box 3 comprises the lower part of the housing 4 and the aforementioned steel outer door 8B which is connected to the housing 4 in a manner that allows it to be opened and closed. The outer door 8B is an outward-opening type and has a door body (body portion) 91 that constitutes the front of the parcel receiving box 3, edge pieces 921, 922, 923, and 924 that are bent backward from the upper edge, lower edge, and left and right vertical edges of the door body 91, respectively, and an upper connecting portion 93 and a lower connecting portion 94 that are joined to the inner surface of the door body 91 on the hinge side (see Figures 1 and 2). The edge piece 923 on the hinge side constitutes a covering portion that covers the pivot shaft 10B from the outside (hinged side) in the X-axis direction when the opening 400B is closed. In addition, a knob 95 for opening and closing operation is provided on the door-edge side portion of the outer surface of the door body 91 (see Figure 1). This outer door 8B is connected to the housing 4 via a pivot shaft 10B that passes through the upper connecting portion 93 and the lower connecting portion 94, and is provided to be able to open and close in the R direction around the pivot shaft 10B. The pivot shaft 10B is made of steel and extends in the Y-axis direction from the top to the bottom of the outer door 8B on the hinge side, and is formed to be longer in the Y-axis direction than the aforementioned pivot shaft 10A. In the closed state shown in Figure 1, the outer door 8B in the closed position closes the opening 400B, and in the open state shown in Figure 2, the outer door 8B in the open position opens the opening 400B. In the parcel delivery box 3 configured in this way, the third party delivering the parcel opens the outer door 8B, places the parcel into the storage space 401B, and closes the outer door 8B. On the other hand, the recipient of the parcel received in the parcel delivery box 3 opens the outer door 8B, retrieves the parcel stored in the storage space 401B, and closes the outer door 8B. The parcels received in the parcel delivery box 3 are items with a thickness greater than those such as letters that are deposited in the mailbox 2.

[0013] In the aforementioned delivery box 1, the configuration around the axis on the hanging side of the mailbox 2 is as follows. Figure 6 shows the main parts of the mailbox 2 from the front and side. As shown in Figures 4 and 5, the upper connecting portion 83 and lower connecting portion 84 of the outer door 8A are each formed in a U-shape in cross-section, having a pair of side pieces 831 and a bottom piece 832. The pair of side pieces 831 have holes through which the upper part of the pivot shaft 10A passes, and the bottom piece 832 is welded to the inner surface of the door body portion 81 of the outer door 8A. Thus, the outer door 8A is connected to the housing 4 via the pivot shaft 10A so as to be able to open and close in the R direction. The housing 4 has an upper bearing portion 47 through which the pivot shaft 10A passes at a position above the upper connecting portion 83, a lower bearing portion 48 through which the pivot shaft 10A passes at a position below the lower connecting portion 84, and an intermediate bearing portion 49 through which the pivot shaft 10A passes at a position in the Y-axis direction between the upper connecting portion 83 and the lower connecting portion 84. As shown in Figures 4 and 6, the upper bearing portion 47 is provided with a hole in the top plate portion 41 through which the pivot shaft 10A passes. Here, the top plate portion 41 has a U-shaped bent portion 412 (upper bent portion) extending in the X-axis direction on its front side, and the upper bearing portion 47 is formed at the suspension-side end of the bent portion 412 in the X-axis direction. As a result, the strength of the front side portion of the top plate portion 41 is increased, as is the strength of the upper bearing portion 47 and its surroundings. In addition, the upper end of a concave reinforcing portion 441, which will be described later, abuts against the suspension-side end of the bent portion 412. As shown in Figures 4 and 6, the lower bearing portion 48 is provided with a hole in the crossbar 431 through which the pivot shaft 10A passes. Here, the crossbar 431 has a U-shaped bent portion 432 (lower bent portion) extending in the X-axis direction on its upper edge side, and the lower bearing portion 48 is formed at the suspension side end of the bent portion 432 in the X-axis direction. As a result, the strength of the upper edge side portion of the crossbar 431 is increased, as is the strength of the lower bearing portion 48 and its surroundings. In addition, the lower end of a concave reinforcing portion 441, which will be described later, abuts against the suspension side end of the bent portion 432. In this lower bearing portion 48, a resin bearing member 481 is fitted into the hole, and the bearing member 481 supports the lower end of the pivot shaft 10A so that it can rotate in the R direction. Note that, as shown in FIGS. 2 and 3, the side plate portion 45 on the door tip side has a U-shaped bent portion 452 formed to extend in the Y-axis direction at the front side portion thereof, and the door tip side ends of the bent portions 412 and 432 are abutted against the upper and lower ends of the bent portion 452. Therefore, the strength of the front side portion of the side plate portion 45 is enhanced. Further, in the housing 4, the bent portions 412, 432, 452 and a concave reinforcing portion 441 (bent portion) described later are formed, so that the strength around the opening 400A is enhanced.

[0014] As shown in FIGS. 4 to 6, the intermediate bearing portion 49 is disposed in the middle portion of a concave reinforcing portion 441 (bent portion) formed to extend in the Y-axis direction and having a concave cross section at the front side portion of the side plate portion 44 on the suspension side.

[0015] Here, the concave reinforcing portion 441 has a side piece 442 formed by bending the front side portion of the side plate portion 44 inward in the X-axis direction (toward the opening 400A), a continuous piece 444 formed by bending forward from the side piece 442 in the Z-axis direction, and a side piece 443 formed by bending outward in the X-axis direction (opposite to the opening 400A) from the continuous piece 444. The side pieces 442 and 443 are paired in the Z-axis direction, and the continuous piece 444 is continuous with the inner edges of the pair of side pieces 442 and 443 in the X-axis direction. The inner surfaces of the pair of side pieces 442 and 443 and the continuous piece 444 define an internal space 445 that is open on the outer side in the X-axis direction. The concave reinforcing portion 441 configured in this way is formed in a U-shaped cross-section, enhancing the strength of the front side portion of the side plate portion 44 on the suspension side and also enhancing the strength of the upper bearing portion 47 and its periphery. The continuous piece 444 and the side piece 443 have smaller dimensions in the Y-axis direction than the side piece 442. In the side piece 443, the dimensions in the X-axis direction at its upper portion 443A and lower portion 443B are equal to each other and smaller than the dimension in the X-axis direction at the intermediate portion 443C between the upper portion 443A and the lower portion 443B. For this reason, a stepped portion 443D is formed between each of the upper portion 443A and the lower portion 443B and the intermediate portion 443C. At each stepped portion 443D corresponding to the positions of the upper portion 443A and the lower portion 443B, the portions where the above-described upper connecting portion 83 and lower connecting portion 84 are continuous with the door main body portion 81 are arranged in a closed state. Also, an intermediate bearing portion 49 is fixed to the intermediate portion 443C. The concave reinforcing portion 441 is disposed between the bending portions 412 and 432, and the suspension side end portions of the bending portions 412 and 432 are abutted against the upper and lower end portions of the concave reinforcing portion 441.

[0016] The intermediate bearing portion 49 is made of steel and is formed in a concave cross-section (U-shaped cross-section in this embodiment) along the inner surfaces of the concave reinforcing portion 441, that is, the inner surfaces of the side piece 442, the continuous piece 444, and the intermediate portion 443C of the side piece 443, and has a fixing portion 491 disposed along each of these inner surfaces and two connecting portions 495 that are continuous with the fixing portion 491 and through which the intermediate portion of the rotation shaft 10A penetrates. The fixing portion 491 has a fixing piece 492 along the side piece 442, a fixing piece 494 along the continuous piece 444, and a fixing piece 493 along the intermediate portion 443C of the side piece 443, and the fixing pieces 492 and 493 are fixed to the side piece 442 and the intermediate portion 443C of the side piece 443, respectively, by fasteners. The connecting portion 495 is composed of a portion bent backward in the Z-axis direction from the upper and lower edges of the fixing piece 493, and is provided continuously on the upper and lower edges of the fixing piece 493, respectively. In other words, there are two connecting portions 495 spaced apart vertically from each other. The intermediate portion of the pivot shaft 10A passes through each connecting portion 495, distributing the load applied from the outer door 8A to the intermediate bearing portion 49 to the upper connecting portion 495 and the lower connecting portion 495. Furthermore, as shown in Figure 6, the edge piece 823 of the outer door 8A covers at least the pivot shaft 10A from the outside in the X-axis direction when the opening 400A is closed. This intermediate bearing portion 49 is formed in a U-shape in cross-section along the concave reinforcing portion 441, thereby creating a space within the internal space 445 where the pivot shaft 10A is positioned, while further increasing the strength around the shaft on the suspension side.

[0017] Furthermore, the configuration around the axis on the hanging side of the parcel receiving box 3 is substantially the same as the configuration around the axis on the hanging side of the mailbox 2, except that the pivot shaft 10B is longer than the pivot shaft 10A in the Y-axis direction. Therefore, the same reference numerals as those used for the configuration around the axis on the hanging side of the parcel receiving box 3 will be used as appropriate, and a detailed explanation will be omitted. In this embodiment, the parcel receiving box 3 has one intermediate bearing section 49, but two or more intermediate bearing sections 49 may be provided in proportion to the length of the pivot shaft 10B.

[0018] As described above, in the mailbox 2 (storage box), the pivot shaft 10A passes through the upper connecting portion 83 and the lower connecting portion 84, as well as the upper bearing portion 47 and the lower bearing portion 48. In addition, at a position between the upper connecting portion 83 and the lower connecting portion 84, the pivot shaft 10A passes through the two connecting portions 495 of the intermediate bearing portion 49, forming a concave reinforcing portion 441 to which the intermediate bearing portion 49 is fixed, as described above. This improves the connection strength between the housing 4 and the outer door 8A, and even when a vertical load based on the weight of the outer door 8A is applied, distortion, deformation, and displacement of the pivot shaft 10A, housing 4, and outer door 8A can be suppressed. Therefore, the risk of problems occurring when opening and closing the outer door 8A can be reduced. Furthermore, even when the dimension of the outer door 8A in the X-axis direction is relatively larger than the normal dimension, or when the vertical load is large due to the weight of the outer door 8A, the configuration around the axis can be suppressed. Furthermore, the parcel receiving box 3 can also provide the same effects as the mailbox 2.

[0019] [Differentiation] In the above embodiment, there is one intermediate bearing portion 49 through which the pivot shaft 10A (10B) passes at a position between the upper connecting portion 83 and the lower connecting portion 84. However, the embodiment is not limited to this, and for example, depending on the length dimension of the pivot shaft 10A (10B), multiple intermediate bearing portions 49 may be provided at a position between the upper connecting portion 83 and the lower connecting portion 84. In this case, the multiple intermediate bearing portions 49 may be arranged at intervals from each other to distribute the force applied around the axis on the suspension side. Also, when multiple intermediate bearing portions 49 are provided, a part of the fixed portion 491 may be continuous. In the above embodiment, the concave reinforcing portion 441 is formed in a U-shape in cross-section, but it is not limited to this, and may be formed in any shape that can reinforce the strength around the axis on the suspension side, such as a curved concave shape. In the above embodiment, a concave reinforcing portion 441 is formed on the side plate portion 44 on the suspension side of the housing 4. However, the configuration of the concave reinforcing portion 441 may be omitted if sufficient strength is obtained from the housing 4, etc. In this case, the intermediate bearing portion 49 is fixed to another part of the housing 4. In the above embodiment, the connecting portions 495 of the intermediate bearing portion 49 are arranged in pairs, spaced apart vertically. However, the number of connecting portions 495 may be one, or there may be three or more. The number and arrangement of the connecting portions 495 depend on the length and strength of the pivot shaft 10A (10B). In the above embodiment, the edge pieces 823 and 923 constitute covering pieces that cover the pivot shafts 10A and 10B from the outside in the X-axis direction when closed. However, the embodiment is not limited to this, and the configuration of the edge pieces 823 and 923 may be changed or omitted if the configuration of the covering pieces is not required. In the above embodiment, the side piece 443 has an upper part 443A and a lower part 443B, but it is not limited to this, and the upper part 443A and lower part 443B may be omitted if they are not necessary for strength reasons. In the above embodiment, a delivery box 1 was configured with a mailbox 2 on the upper level and a parcel receiving box 3 on the lower level. However, the delivery box is not limited to this configuration, and may be configured with a mailbox 2 or a parcel receiving box 3 individually, or it may be configured with other additional storage boxes. Regardless of the form in which the delivery box is configured, it is sufficient that it includes storage boxes such as a mailbox 2 and a parcel receiving box 3. In the above embodiment, a front-loading, front-retrieval type delivery box 1 was described in which packages are loaded and retrieved from the front openings 400A and 400B. However, the delivery box 1 is not limited to this type. For example, a front-loading, rear-retrieval type delivery box 1 may be constructed in which the rear panel 46 of the housing 4 is made of a door, packages are loaded from the front openings 400A and 400B, and the rear door is opened to retrieve packages stored in the storage spaces 401A and 401B. In the above embodiment, a storage box having an intermediate bearing portion 49 and the like was configured in the delivery box 1, but the storage box may also be configured in a locker or the like.

[0020] [Summary of the invention] (1) The present invention provides a storage box comprising a housing having an opening and a storage space continuous with the opening for storing luggage, and a door body connected to the housing on the hanging side via a pivot shaft so as to be able to open and close the opening, wherein the pivot shaft extends vertically on the hanging side, the door body has an upper connecting portion through which the upper part of the pivot shaft passes, and a lower connecting portion through which the lower part of the pivot shaft passes, and the housing has an upper bearing portion through which the pivot shaft passes at a position above the upper connecting portion, a lower bearing portion through which the pivot shaft passes at a position below the lower connecting portion, and at least one intermediate bearing portion through which the pivot shaft passes at a position between the upper connecting portion and the lower connecting portion. In the housing box of the present invention, the pivot shaft passes through the upper and lower connecting parts and the upper and lower bearing parts, and also passes through the intermediate bearing part at a position between the upper and lower connecting parts. This improves the connection strength between the housing and the door body, and even when a vertical load based on the door body's own weight is applied, distortion, deformation, and misalignment of the pivot shaft, housing, and door body can be suppressed. Therefore, the risk of problems occurring when opening and closing the door body can be reduced. (2) In the housing box of the present invention, the housing has a concave reinforcing portion that extends vertically on the suspension side and is formed in a concave cross-section, and the intermediate bearing portion may be fixed to the concave reinforcing portion. With this configuration, the intermediate bearing section is fixed to the concave reinforcing section, which has a high-strength structure due to its concave cross-section. This increases the strength of the housing and the intermediate bearing section, and reduces the occurrence of distortion, deformation, and resulting misalignment, distortion, and deformation of the pivot shaft and the door body. (3) In the housing box of the present invention, the concave reinforcing portion has a pair of side pieces and a continuous piece continuous with the pair of side pieces, and the intermediate bearing portion may have a fixing portion that is formed in a concave cross-section along the inner surfaces of the pair of side pieces and the continuous piece and is arranged along the inner surfaces, and a connecting portion that is continuous with the fixing portion and through which the pivot shaft passes. With this configuration, the fixing portion of the intermediate bearing is formed in a concave cross-section along the inner surface of the concave reinforcing portion and is positioned along the inner surface, thereby improving the strength of the structure around the shaft of the housing, suppressing the occurrence of distortion and deformation of the structure around the shaft of the housing, and consequently reducing the occurrence of misalignment, distortion, and deformation of the shaft and door body. (4) In the housing box of the present invention, the intermediate bearing portion may have at least two connecting portions that are spaced apart vertically. With this configuration, the portion of the pivot shaft that is spaced apart vertically in the intermediate bearing section can be held by at least two connecting parts, thereby reducing the risk of distortion, deformation, etc., occurring in the structure around the pivot shaft. (5) In the storage box of the present invention, the concave reinforcing portion has the continuous piece arranged on the inside in the left-right direction intersecting the vertical direction and is open on the outside in the left-right direction, and at least the pivot shaft is arranged in the internal space partitioned by the inner surface of the concave reinforcing portion, and the door body is configured to open outwards and may have a covering piece that covers at least the pivot shaft from the outside in the left-right direction when the opening is closed. With this configuration, when the opening of the storage box is closed, the covering piece of the door body covers the pivot axis from the outside in the left-right direction, thus suppressing the exposure of the structure around the axis on the hinge side and improving the appearance of the storage box when it is closed. Furthermore, when the opening of the storage box is open, the main body of the outward-opening door can also cover the concave reinforcing portion from the outside in the left-right direction, thereby suppressing the exposure of the structure around the axis on the hinge side and improving the appearance when the opening of the storage box is open. Furthermore, in the open state, the concave reinforcing portion can be seen only from the inside in the left-right direction as part of the structure around the axis, and the exposure of the pivot shaft and intermediate bearing portion can be suppressed, thereby improving the appearance of the housing box when the opening is open. (6) In the storage box of the present invention, in one of the pair of side pieces, the left-right dimension intersecting the upper and lower parts is smaller than the left-right dimension in the intermediate part between the upper and lower parts, the upper connecting part and the lower connecting part are continuous with the main body of the door at positions corresponding to the upper and lower parts of the one side piece, and the intermediate bearing part may be fixed to at least the intermediate part. With this configuration, the strength of the intermediate bearing can be improved by fixing the intermediate bearing to the intermediate section, which has a larger left-right dimension than the upper and lower parts of one of the side pieces. (7) In the housing box of the present invention, the intermediate bearing portion may be provided in multiple locations vertically along the pivot axis. With this configuration, if the pivot shaft is configured to be long vertically, distortion and deformation are likely to occur in the pivot shaft. However, by providing multiple intermediate bearing sections vertically, the occurrence of such distortion and deformation can be suppressed. [Explanation of Symbols]

[0021] 1...Delivery box, 10...Locking device, 10A, 10B...Rotating shaft, 2...Mailbox (storage box), 3...Package receiving box (storage box), 4...Housing, 400A, 400B...Opening, 401A, 401B...Storage space, 41...Top plate, 412, 432, 452...Bent part, 42...Bottom plate, 43...Middle plate, 431...Cross bar, 44, 45...Side plate, 441...Concave reinforcement part, 442, 443, 831...Side piece, 443A...Upper part, 443B...Lower part, 443C...Middle part, 443D...Step part, 444... Continuous piece, 445...internal space, 46...rear plate section, 47...upper bearing section, 48...lower bearing section, 481...bearing member, 49...intermediate bearing section, 491...fixing section, 492, 493, 494...fixing piece, 495...connecting section, 5...inner door, 6...flap, 7...frame body, 706...mail slot, 81, 91...door body section, 821, 822, 823, 824, 921, 922, 923, 924...edge piece section, 83, 93...upper connecting section, 832...bottom piece, 84, 94...lower connecting section, 85, 95...knob, 8A, 8B...outer door (door body).

Claims

1. A storage box having an enclosure that has an opening and a storage space that is continuous with the opening and for storing luggage, and a door body that is connected to the enclosure on the hanging side via a pivot shaft so that the opening can be opened and closed, The pivot shaft extends vertically on the suspension side, The door body has an upper connecting portion through which the upper part of the pivot shaft passes, and a lower connecting portion through which the lower part of the pivot shaft passes. The housing has an upper bearing portion through which the pivot shaft passes at a position above the upper connecting portion, a lower bearing portion through which the pivot shaft passes at a position below the lower connecting portion, and at least one intermediate bearing portion through which the pivot shaft passes at a position between the upper and lower connecting portions. A storage box characterized by the following features.

2. In the storage box according to claim 1, The housing has a concave reinforcing portion that extends vertically on the suspension side and is formed with a concave cross-section. The intermediate bearing portion is fixed to the concave reinforcing portion. A storage box characterized by the following features.

3. In the storage box according to claim 2, The concave reinforcing portion has a pair of side pieces and a continuous piece that is continuous with the pair of side pieces. The intermediate bearing portion has a fixed portion formed in a concave cross-section along the inner surfaces of the pair of side pieces and the continuous piece and arranged along the inner surfaces, and a connecting portion that is continuous with the fixed portion and through which the pivot shaft passes. A storage box characterized by the following features.

4. In the storage box according to claim 3, The intermediate bearing portion has at least two of the connecting portions, which are arranged vertically with a gap between them. A storage box characterized by the following features.

5. In the storage box according to claim 3, The aforementioned concave reinforcing portion has the continuous pieces arranged on the inside in the left-right direction intersecting the vertical direction, and is open on the outside in the left-right direction. At least the pivot shaft is located in the internal space partitioned by the inner surface of the concave reinforcing portion. The door body is configured to open outwards and has a covering portion that covers at least the pivot axis from the outside in the left-right direction when the opening is closed. A storage box characterized by the following features.

6. In the storage box according to claim 3, In one of the pair of side pieces, the left-right dimension that intersects the upper and lower parts is smaller than the left-right dimension in the intermediate part between the upper and lower parts. The upper connecting portion and the lower connecting portion are continuous with the main body portion of the door at positions corresponding to the upper and lower parts of one of the side pieces. The intermediate bearing portion is fixed to at least the intermediate portion. A storage box characterized by the following features.

7. In the storage box according to claim 1, The intermediate bearing section is provided in multiple locations vertically along the pivot axis. A storage box characterized by the following features.

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