JP6413164B2 - Storage box - Google Patents

Description

  The present invention relates to a storage box for storing electrical equipment.

  2. Description of the Related Art A storage box that stores electrical equipment has a function of holding a door in an open state from the viewpoint of improving workability.

  For example, Patent Literature 1 discloses a hinge device for a distribution board door that can support the door in an open state and has an extremely different operational feeling from a normal one. In this device, the hinge device includes a door-side hinge bracket, a frame-side hinge bracket, a shaft for connecting the hinge brackets, a contact portion provided on the door-side hinge bracket side, and one end thereof. It is comprised by the support plate supported by the hinge metal | metal | money side by the side of a frame.

JP-A-9-271112

  However, the hinge device using the conventional hinge metal has a problem that the number of parts is large and the assembly to the door and the frame is troublesome.

  In view of the above points, an object of the present invention is to realize a storage box having a function of holding a door in an open state without using a hinge device such as a hinge fitting.

  The storage box according to the present invention includes a door that is pivotally supported by a movable coupling portion with respect to the box body so as to be swingable between a closed position and an open position, and is engaged when the door is in the open position. While the joint convex part and the engaging claw part are engaged and the door is held in an upright state, the engagement between the engaging convex part and the engaging claw part is released when the door is in the closed position. In addition, when the door moves between the open position and the closed position, the engagement convex portion deforms (bends) the engagement claw portion.

That is, in one aspect of the present invention, a storage box that stores an electric device having an operation unit, the box body having an opening to which the electric device is attached and the operation unit of the electric device is exposed, and the opening A movable connecting portion having a door that covers the shaft, a shaft portion that is integrally provided on one of the box body and the door, and a bearing portion that is integrally provided on the other and supports the shaft portion so as to be swingable. An engagement protrusion provided integrally on one of the box body and the door; and an engagement protrusion provided integrally on the other of the box body and the door ; An engaging claw that is elastically deformable in the axial direction, and the door is pivotally supported so as to be swingable between a closed position that covers the opening by the movable connecting portion and an open position that stands up from the box body. The engaging projection and the engaging claw when the door is in the open position. Are engaged and the door is held in the open position (standing state), while the engagement convex portion and the engagement claw portion are disengaged when the door is in the closed position. And, when the door moves between the open position and the closed position, the engagement convex portion pushes the engagement claw portion in the axial direction to deform (for example, bend). It is configured.

  According to this aspect, the door is pivotally supported so as to be swingable between the closed position and the open position by the movable connecting portion (shaft portion / bearing portion) provided integrally with the box body / door. Furthermore, the door is configured to be able to be held in an open position (standing state) with respect to the box body by the engagement of the engaging protrusions and the engaging claws provided integrally with the box body / door. Has been. That is, the storage box according to the present aspect can be obtained by the action (engagement) of the engagement convex portion / engagement claw portion integrally provided on the box body / door without using a hinge device such as a hinge metal fitting. It has the function of holding the door open. Thereby, the function which the conventional hinge apparatus had can be implement | achieved with a main body case and a door, and a number of parts can be reduced.

  Further, since the movable connecting part (shaft part / bearing part) and the engaging convex part / engaging claw part are provided independently, the swinging movement of the door by the movable connecting part and the engaging convex part / The engagement by the engaging claw portion and the releasing operation thereof can be prevented from interfering with each other. For example, when the door is moved from the open position to the closed position, when the engagement convex portion deforms (for example, bends) the engagement claw portion to release the engagement, the engagement release operation is performed. It is possible to prevent interference with the swinging motion. As a result, it is possible to prevent rattling during the swinging of the door, the shaft portion of the movable connecting portion from being detached from the bearing portion, and the like, and to ensure a smooth swinging operation of the door.

  Further, in the storage box of the above aspect, the plurality of movable connecting portions are provided so as to be separated in the axial direction of the shaft portion (hereinafter also simply referred to as the axial direction), and the plurality of movable connecting portions are: You may be comprised so that it may arrange | position on the both outer sides of the said axial direction rather than the said engagement convex part and the said engagement nail | claw part.

  According to this configuration, since the engaging operation and the releasing operation by the engaging convex portion and the engaging claw portion are performed on the inner side in the axial direction of the movable connecting portion, the connecting portion between the shaft portion of the movable connecting portion and the bearing portion. It is possible to reduce the influence of shaking. Thereby, compared with the case where said engagement operation | movement (release operation | movement) is performed in the axial direction outer side of a movable connection part, it is made for an engagement convex part and an engagement nail | claw part to be a stable position. Can do. That is, it is possible to stabilize the contact position at the time of engagement between the engagement convex portion and the engagement claw portion (the contact position at the time of release). Further, since the movable connecting portion is provided on the outer side in the axial direction from the engaging convex portion and the engaging claw portion, the force is easily transmitted to the rotating shaft when the door swings, and the movable connecting portion (door) Shaking and shaking are less likely to occur.

  Further, in the storage box of the above aspect, each of the engagement convex portion and the engagement claw portion stands up from the box body or the door, and the engagement is performed when the door is in the open position. When the front ends of the convex portion and the engaging claw portion are engaged with each other and the door moves between the open position and the closed position, the front end portion of the engaging convex portion is engaged. You may comprise so that the front-end | tip part of a nail | claw part may be deform | transformed by pushing in the axial direction of the said axial part (for example, it bends).

  According to this configuration, in the door opening / closing operation, the front ends of the engaging convex portion and the engaging claw portion hit each other, and the engaging convex portion and the engaging claw portion are engaged and released. As a result, the engagement claw portion is deformed (for example, deflected) from the engagement state in which the engagement convex portion and the engagement claw portion are engaged in the open position, and then the engagement is released. It is possible to shorten the period during which the engaging claw is deformed (for example, bent) until the engagement is released. When the engagement claw part is deformed (for example, bent) for a long time (for example, when the function of the engagement convex part is realized by the wall surface of the body cover), the elastic force of the engagement claw part If the strength is increased, smooth opening and closing of the door may be hindered. On the other hand, in the configuration of this aspect, since the period during which the engaging claw portion is bent is short, smooth opening and closing of the door is not inhibited even if the elastic force of the engaging claw portion is increased. Thereby, even if it is used for a long period of time, it can be prevented that the elastic force is weakened due to deterioration over time or continuous use and the door cannot be maintained in a standing state.

  Further, in the storage box of the above aspect, the door is between the shaft portion or the bearing portion provided on the door and the engagement convex portion or the engagement claw portion provided on the door. , And may be configured to be cut out in a direction orthogonal to the axial direction of the shaft portion.

  According to this configuration, it is possible to more reliably prevent interference between the swinging operation of the door by the movable connecting portion and the engagement and release operation by the engagement convex portion / engagement claw portion.

  According to the present invention, the function of enabling the door to swing between the open / closed positions and the function of holding the door in the open position (upright state) include a movable connecting portion integrally provided in the box body / door, and engagement. Since it can implement | achieve by a convex part and an engaging claw part, a number of parts can be reduced compared with a prior art. Further, since the movable connecting portion and the engaging convex portion / engaging claw portion are provided independently, rattling when the door swings, the shaft portion of the movable connecting portion is detached from the bearing portion, etc. Can be prevented and a smooth swinging motion of the door can be ensured.

  Furthermore, the tip portions of the engaging convex portion and the engaging claw portion are engaged with each other, and the leading end portion of the engaging convex portion deforms (bends) the leading end portion of the engaging claw portion. By doing so, the period during which the engaging claw portion is deformed (deflected) can be shortened, so that the smooth opening and closing of the door is not hindered even if the elastic force of the engaging claw portion is increased. Thereby, even in long-term use, it is possible to prevent the elastic force from being weakened due to deterioration over time or continuous use, so that the standing upright state of the door cannot be maintained.

It is a perspective view of the storage box concerning an embodiment, (a) shows the state where a door is in an open position, and (b) shows the state where a door is in a closed position, respectively. FIG. 2 is an exploded perspective view in which FIG. It is a side view for demonstrating the opening / closing operation | movement of a door. It is the fracture | rupture perspective view which expanded area | region R1 of Fig.1 (a), and is a figure for demonstrating the opening / closing operation | movement of a door. It is the fracture | rupture perspective view which expanded area | region R1 of Fig.1 (a), and is a figure for demonstrating the opening / closing operation | movement of a door.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. The following description of the preferred embodiments is merely exemplary in nature and is not intended to limit the invention, its scope of application, or its application.

(Configuration of storage box)
FIG. 1 is a perspective view of a storage box according to the embodiment, and FIG. FIG. 1A shows a state in which a door of a storage box, which will be described later, is in an open position where the door of the storage box stands up from the main body cover, and FIG. Shows the state.

  As shown in FIGS. 1 and 2, the storage box 10 includes a box body 60 to which an electrical device (not shown) is attached, and a door 20 attached to the box body 60.

  The box body 60 includes a base body 40 to which an electric device is attached and a main body cover 30 that is attached to the base body 40 and has an opening 33 through which an operation unit of the electric device is exposed. The base body 40 and the main body cover 30 may be configured integrally. Further, a panel (not shown) that covers the opening 33 may be attached to the opening 33, and an opening that exposes the operation unit of the electric device may be provided on the panel.

  The electrical equipment is, for example, a circuit breaker such as a photovoltaic power generation system or a household fuel cell system. For example, the input side is connected to a power conditioner for the photovoltaic power generation system, and the output side is a distribution board for home use. Connected to. The electric device is not limited to a circuit breaker, and may be another electric device such as a system switch, a current limiter (limiter), and a watt hour meter. In addition, the electrical device in the present disclosure is not limited to a high-electrical electrical device such as a circuit breaker, for example, a weak electrical electronic device (for example, a touch panel display) on which an electronic component such as a semiconductor is mounted, It is a concept that includes a combination of a high-electric electric device and a weak electric electronic device.

  The base body 40 has a rectangular box shape with an open front surface, and an electric device is attached to the back plate 40a on the rear side so that an operation unit (not shown) faces frontward. Further, the back plate 40a of the base body 40 is fixed to a wall surface of a house or a pole installed indoors or outdoors by screwing or the like. In the following description, “front” refers to the opening side of the base body 40, and “rear” refers to the back plate 40 a side of the base body 40. Further, “upper” and “lower” refer to an upper side and a lower side, respectively, when the base body 40 is installed on a wall surface of a house. A direction orthogonal to the front-rear direction and the up-down direction is referred to as a left-right direction.

  The main body cover 30 has a rectangular frame shape, and includes a side plate 30b and a front plate 30a provided integrally on the front side of the side plate 30b. The side plate 30b extends in a planar shape from the rear side to the front side and then gradually inclines inward in the vertical and horizontal directions, and is provided so that the front plate 30a is continuous with the front end. A plurality of fitting portions (for example, fitting portions 34 in FIG. 3) are provided on the rear side of the side plate 30b, and a plurality of fitting portions are provided on the front side of the base body 40 so as to correspond to the plurality of fitting portions. To-be-fitted part (for example, fitting part 41 in FIG. 3) is provided. The main body cover 30 is integrally attached to the base body 40 by fitting the plurality of fitting portions and the fitted portion.

  The opening 33 of the main body cover 30 is provided at the upper, lower, left and right central portions of the front plate 30a, and the operation unit of the electric device is exposed on the front side of the opening 33 so that the operation can be performed from the front side. . Moreover, the recessed part 30c recessed toward back is formed in the left-right direction both sides of the upper end part of the front board 30a. A shaft portion 31 protruding inward in the left-right direction is integrally provided on the inner surface of the side wall 30d on the outer side in the left-right direction of each recess 30c. In addition, an engaging claw portion 32 that stands up toward the front side is integrally projected from the upper, lower, left, and right central portions of the bottom plate 30e on the rear side of each recess 30c.

  The engaging claw portion 32 has a triangular shape with a narrow front side in a side view as viewed from the left-right direction, and a base portion 32a that protrudes integrally so as to stand up from the bottom plate 30e, and a front end portion of the base portion 32a And an engaging claw 32b that is provided integrally with the (tip portion) and protrudes inward in the left-right direction. The engaging claws 32b are configured in a triangular shape such that the front end is narrow and gradually widens toward the rear side when viewed from the bottom (the state viewed from below, the same applies hereinafter). Further, a reinforcing plate 32c (see FIG. 4) extending forward from the bottom plate 30e is provided integrally with the base portion 32a on the outer side in the left-right direction of the base portion 32a. The reinforcing plate 32c has the widest width at the joint between the base portion 32a and the bottom plate 30e, and the width decreases as the distance from the base portion 32a increases on the end side (front side) of the base portion 32a and on the bottom plate 30e. As a result, compared to the case where the reinforcing plate 32c is not provided, the rigidity of the engaging claw portion 32 is increased in the left-right direction, and the engaging claw portion 32 is elastically deformed outward in the left-right direction (see arrow D1 in FIG. 4). In this case, the restoring force (elastic force) can be increased. With such a configuration, even during long-term use, the elastic force (restoring force when elastically deformed) is weakened due to aging and continuous use, and the door can be kept standing in the open position. It can be prevented from disappearing. Note that the shape of the engagement claw 32b as viewed from the bottom is not limited to a triangular shape. For example, the door 20 may be configured to be bent by an engagement end 22d of an engagement protrusion 22 described later when the door 20 is opened and closed. Good.

  Further, in the upper end portion of the front plate 30a, a recess 30f that is recessed in an arc shape in a side view is formed so that the space between both the recesses 30c and 30c is continuous with the recess 30c, and when the door 20 swings, The upper plate 20c is prevented from hitting the front plate 30a.

  In the present disclosure, the term “end” is a concept that includes not only an end but also an end and a portion near the end. For example, the tip portion refers to a portion (part) including both the tip and a portion near the tip near the tip, and the same applies to the upper end portion, the front end portion, both end portions, and the like.

  The door 20 is configured to cover the entire front plate 30 a of the main body cover 30. 20a is a front plate extending in the vertical and horizontal directions, and 20b is a side plate integrally provided on both the left and right sides of the front plate 20a, and is inclined so as to gradually spread in the horizontal direction. 20c / 20d is an upper plate / lower plate provided integrally on the upper side / lower side of the front plate 20a, and is inclined so as to gradually spread upward / downward. The door 20 is configured such that a part of the upper plate 20c corresponds to a part of the side plate 30b on the upper side of the main body cover 30 in the open position, and does not swing beyond the open position.

  The bearing plate 21 is integrally protruded inward (downward) from the upper plate 20c so as to be substantially parallel to the side wall 30d of the recess 30c inside the left and right ends of the upper plate 20c. A bearing portion 21a formed of a through-hole penetrating in the axial direction of the shaft portion 31 (left-right direction, hereinafter also simply referred to as the axial direction) is formed at an intermediate portion in the vertical direction at the front end portion of the bearing plate 21. The diameter of the bearing portion 21 a is slightly larger than the diameter of the shaft portion 31. The movable connecting portion 50 is constituted by the bearing portion 21 a and the shaft portion 31. The bearing portion 21a supports the shaft portion 31 so as to be swingable, so that the door 20 can swing between the closed position and the open position.

  Further, the bearing plate 21 has a notch 21c in which the rear end of the bearing plate 21 is cut out on an arc in a state where the door 20 is in the closed position, and a shaft portion 31 between the notch 21c and the bearing 21a. A guide groove 21b for guiding is formed. With such a configuration, when the door 20 is attached to the main body cover 30, the notch portion 21 c is a shaft portion with the front plate 20 a of the door 20 and the front plate 30 a of the main body cover 30 facing each other. After making it contact | abut with respect to 31 from the front side, it can attach simply by pushing in the door 20 to the back side, and inserting the axial part 31 in the bearing part 21a, guiding with the guide groove 21b.

  On the other hand, once the door 20 is attached, the shaft portion 31 is fitted into the bearing portion 21a, so that the door 20 is not inadvertently detached.

  In the state where the door 20 is open, as shown in FIG. 4 (a), the guide groove 21b is rotated from the mounting state and extends downward, and the guide function of the shaft portion 31 is as follows. Canceled. For this reason, with the opening operation of the door 20, even if a force in the front-rear direction is applied to the door 20, the door 20 is prevented from being easily detached from the main body cover 30 because the door 20 is secured against detachment. .

  The engaging convex portion 22 is integrated from the upper plate 20 c toward the inside (downward when the door 20 is in the open position) so as to be substantially parallel to the bearing plate 21 on the inner side in the left-right direction of the bearing plate 21. Projected to The engagement convex portion 22 has an H-shaped cross section, and is substantially parallel to the engagement side plate 22a on the inner side (left side in FIGS. 4 and 5) of the engagement side plate 22a extending substantially parallel to the bearing plate 21 and the engagement side plate 22a. And an engagement connecting plate 22c for connecting intermediate portions in the front-rear direction of the engagement side plates 22a and 22b. The front ends of the engagement side plates 22a and 22b are notched on the lower side of the engagement connecting plate 22c, whereby an engagement end portion 22d is formed at the front end portion of the engagement convex portion 22. The engagement end portion 22d pushes the engagement claw 32b outward in the axial direction (see arrow D1 in FIG. 4) when the door 20 moves between the open position and the closed position, so that the engagement claw portion 32 is pivoted. It is configured to bend outward in the direction.

  As shown in FIGS. 4B and 5B, the bearing plate 21 and the engaging convex portion 22 are connected by a connecting plate 24. Thereby, the intensity | strength to the axial direction (left-right direction) of the bearing board 21 and the engagement convex part 22 can be raised. In addition, when the storage box is fixedly attached to a wall surface of a house or a pole installed indoors or outdoors, it is possible to prevent dust and rainwater from entering the storage box from above the storage box.

  On the other hand, a cutout portion 24a cut out in the vertical direction is provided at the front end portion of the connecting plate 24 on the engagement convex portion 22 side (the lower side in FIG. 4B). Thus, by providing the notch 24a, even if the engagement end 22d is bent by a reaction force when the engagement claw 32b is pushed outward in the axial direction, the bearing 21a and the shaft are affected by the influence. It is possible to prevent the engagement portion (connection portion) with the portion 31 from being affected. In addition, the position and shape in which the notch part 24a is provided are not limited to the position and shape of FIG.4 (b). For example, the notch 24a may be provided at the tip of the connecting plate 24 on the bearing plate 21 side. Further, the depth in the vertical direction in FIG. 4 of the notch 24a may be deeper than that in FIG. 4B.

  Returning to FIG. 1, an engaging portion 23 is provided at the lower end portion of the door 20 in the closed position, and the lower end portion of the front plate 30 a of the main body cover 30 is engaged at a position corresponding to the engaging portion 23. A joint portion 35 is provided. When the door 20 is swung to the closed position, the engaging portion 23 and the engaged portion 35 are engaged, whereby the door 20 is held at the closed position.

(Door open / close operation)
The opening / closing operation | movement of the door 20 is demonstrated in detail using FIGS.

  First, from the open position (hereinafter also simply referred to as the open position) where the door 20 stands from the main body cover 30, the door 20 covers the opening 33 of the main body cover 30 (hereinafter also simply referred to as the open position). The closing operation at the time of moving to will be described. As shown in FIGS. 3A and 4, in the open position, the engagement end 22 d of the engagement projection 22 and the engagement claw 32 b of the engagement claw 32 engage and the door 20 stands up. (Engaged state). Specifically, the front end of the engagement claw 32b supports the rear end of the engagement end 22d, and the engagement end 22d is held so as not to move backward (downward in FIG. 3A). The door 20 is held in an upright state.

  Here, when a force in a direction toward the closed position is applied to the door 20, a force in the rear direction is also applied to the engagement end portion 22d. Due to the force applied to the engaging end 22d, the engaging claw 32b is pushed outward in the axial direction (arrow D1 direction side in FIG. 4), and the engaging claw 32 is bent outward in the axial direction. When the above force is further applied, the engagement end 22d advances to the rear side while bending the engagement claw 32 outward in the axial direction, and the front end of the engagement end 22d is engaged with the engagement claw 32b. When passing the rear end, as shown in the phantom line of FIG. 3A and FIG. 5, the engagement claw portion 32 returns to the state before being bent, and the engagement end portion 22d and the engagement claw 32b The engaged state is released when the engagement is released. After that, when the door 20 is swung to the closed position, the engagement portion 23 of the door 20 and the engaged portion 35 of the main body cover 30 are engaged, whereby the door 20 is held in the closed position (see FIG. 3 (b)).

  Next, the opening operation when the door 20 moves from the closed position to the open position will be described. Engagement between the engaging portion 23 of the door 20 and the engaged portion 35 of the main body cover 30 by pushing the lower end portion of the door 20 in the closed position (described as “PUSH” in FIG. 1B) from the front side. Is released. Thereafter, when the door 20 is swung from the closed position toward the open position, the upper end of the engagement end portion 22d corresponds to the lower end of the engagement claw 32b as indicated by the phantom line in FIG. When the door 20 is further swung toward the open position, the engaging claw 32b is pushed outward in the axial direction (arrow D2 direction side in FIG. 5), and the engaging claw 32 is bent outward in the axial direction. Thereafter, the engagement end portion 22d advances forward while bending the engagement claw portion 32 outward in the axial direction, and when the rear end of the engagement end portion 22d passes the front end of the engagement claw 32b, FIG. 4) As shown in the solid line and FIG. 4, the front end of the engagement claw 32b is in an engagement state that supports the rear end of the engagement end portion 22d, and the door 20 is held upright.

  As described above, according to the present embodiment, the door 20 is pivotally supported by the movable connecting portion 50 so as to be swingable between the closed position and the open position, and the engaging convex portion 22 and the engaging claw portion 32 are supported. It is comprised so that it may be hold | maintained at an open position by engagement. Thereby, the storage box 10 of this embodiment has realized the opening / closing function of the door 20 and the holding function of holding the door 20 in an open state without using a hinge device such as a hinge metal fitting. The number of parts can be reduced as compared with.

(Other embodiments)
Although the present invention has been described with the preferred embodiments, various modifications can be made.

  For example, in the above embodiment, the engagement convex portion 22 and the engagement claw portion 32 are engaged when the door 20 is in the open position to hold the door 20 in an upright position. In addition, it may be engaged at other locations. For example, although not shown, the door is configured to be engaged in the vicinity of the closed position in addition to the open position, so that the door can be provided without providing the engaging portion 23 of the door 20 and the engaged portion 35 of the main body cover 30. 20 can be held in the closed position. Thereby, compared with a prior art, a number of parts can further be reduced.

  In addition, the engagement between the engagement convex portion 22 and the engagement claw portion 32 is realized by the engagement between the engagement end portion 22d and the engagement claw 32b at the respective distal ends. It is not limited. For example, portions other than the distal end portions of the engaging convex portion 22 and the engaging claw portion 32 may be engaged with each other, for example, the distal end of either the engaging convex portion 22 or the engaging claw portion 32. You may make it a part and parts other than the other front-end | tip part engage.

  INDUSTRIAL APPLICABILITY Since the storage box can be held with the door open without using a hinge device, the storage box is extremely useful as a storage box for storing an electrical device having an operation unit.

DESCRIPTION OF SYMBOLS 10 Storage box 20 Door 21a Bearing part 22 Engaging convex part 31 Shaft part 32 Engaging claw part 50 Movable connection part 60 Box main body

Claims (4)

A storage box for storing an electric device having an operation unit,
A box body having an opening to which the electric device is attached and the operation unit of the electric device is exposed;
A door covering the opening;
A movable connecting portion having a shaft portion provided integrally with one of the box body and the door, and a bearing portion provided integrally with the other and supporting the shaft portion so as to be swingable;
An engaging projection provided integrally with one of the box body and the door;
An engagement claw portion provided integrally with the other of the box body and the door, and capable of elastic deformation in the axial direction of the shaft portion by engagement with the engagement convex portion ;
The door is pivotally supported so as to be swingable between a closed position that covers the opening by the movable connecting portion and an open position that stands up from the box body,
When the door is in the open position, the engagement protrusion and the engagement claw are engaged to hold the door in the open position, while the door is in the closed position. The engagement between the engagement projection and the engagement claw is released, and the engagement projection is moved to the engagement claw when the door moves between the open position and the closed position. A storage box configured to be deformed by pushing a portion in the axial direction . The storage box according to claim 1,
A plurality of the movable connecting portions are provided so as to be separated from each other in the axial direction of the shaft portion;
The storage box, wherein the plurality of movable connecting portions are arranged on both outer sides in the axial direction with respect to the engaging convex portion and the engaging claw portion. The storage box according to claim 1 or 2,
The engaging convex part and the engaging claw part are each raised from the box body or the door,
When the front end portions of the engagement convex portion and the engagement claw portion are engaged when the door is in the open position, and the door moves between the open position and the closed position. The storage box is configured such that the tip of the engaging projection is deformed by pushing the tip of the engaging claw in the axial direction of the shaft. The storage box according to any one of claims 1 to 3,
The door is orthogonal to the axial direction of the shaft portion between the shaft portion or the bearing portion provided on the door and the engagement convex portion or the engagement claw portion provided on the door. A storage box that is cut out in the direction.

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