Storage box

Abstract

To provide a storage box capable of suppressing movement of a cover in a closed state.SOLUTION: The accommodation box 1 includes the holding cover 3 that is attached to the main body 2 so as to be openable and closable and the opening / closing cover 4 that is openable and closable with respect to the holding cover 3, the opening / closing cover 4 includes the lock arm 43 that forms the claw portion 432, the holding cover 3 includes the locking portion 34 that is engaged with the claw portion 432 and the support portion 35 that is provided so as to sandwich the claw portion 432 between the locking portion 34 and the support portion 35 in a state where the locking portion 34 and the claw portion 432 are engaged with each other, and the claw portion 432 protrudes toward the locking portion 34 and the support portion 35 in the lock arm 43. An inclined surface 432A abutting on the support part 35 is formed, the lock arm 43 presses and engages the claw part 432 with the locking part 34 while the opening / closing cover 4 is closed with respect to the holding cover 3, and the support part 35 forms a tapered surface 351 abutting on the inclined surface 432A of the claw part 432.SELECTED DRAWING: Figure 7

Description

[Technical Field]

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

[0002] Conventionally, as a housing box, an electric junction box having an openable and closable cover for a housing portion (case body) has been known, for example, as described in Patent Document 1. This electric junction box is a box body that houses components such as relays and fuses in the internal space of the housing portion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-000592 Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned storage box has room for improvement in that it is difficult to keep the cover from moving when closed relative to the storage section. For example, if the cover rotates relative to the storage section to open and close, if there is a large amount of play in the rotation support structure between the cover and the storage section, the cover will move relative to the storage section, causing vibrations and abnormal noise. For this reason, technological development is needed to keep the cover from moving relative to the storage section.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a storage box that can be prevented from moving with its cover closed. [Means for solving the problem]

[0006] In other words, the storage box of the present invention comprises a retaining cover that is attached to a main body so as to be able to open and close, and an opening / closing cover that is able to open and close relative to the retaining cover, wherein the opening / closing cover has a locking arm that forms a claw portion, and the retaining cover has a locking portion that engages with the claw portion when the opening / closing cover is closed, and a support portion that is arranged to sandwich the claw portion between the locking portion and the retaining cover when the locking portion and the claw portion are engaged, wherein the claw portion protrudes from the locking arm toward the locking portion and the support portion and forms an inclined surface that abuts against the support portion, and when the opening / closing cover is closed relative to the retaining cover, the locking arm presses the claw portion against the locking portion to engage it, and the support portion is configured to form a tapered surface that abuts against the inclined surface of the claw portion. [Effects of the Invention]

[0007] According to the storage box of the present invention, it is possible to prevent the opening / closing cover from moving in a closed state. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing a storage box according to an embodiment. [Figure 2] FIG. 2 is a perspective view showing a state in which the opening / closing cover of the storage box according to the embodiment is open. [Figure 3] FIG. 3 is a perspective view of a holding cover of the storage box according to the embodiment. [Figure 4] FIG. 4 is a perspective view of an opening / closing cover of the storage box according to the embodiment. [Figure 5] 5 is an explanatory diagram of opening and closing of the storage box according to the embodiment, and is a cross-sectional view of the storage box taken along line VV in FIG. [Figure 6] 6 is an explanatory diagram of opening and closing of the storage box according to the embodiment, and is a cross-sectional view of the storage box taken along line VI-VI in FIG. [Figure 7] 7 is an explanatory diagram of opening and closing of the storage box according to the embodiment, and is a cross-sectional view of the storage box taken along line VII-VII in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to these embodiments. Furthermore, the components in the following embodiments include those that are easily replaceable by those skilled in the art, or those that are substantially the same.

[0010] [Embodiment] This embodiment relates to a storage box. In the following description, of the first, second, and third directions that intersect with one another, the first direction will be referred to as the "width direction X," the second direction will be referred to as the "depth direction Y," and the third direction will be referred to as the "height direction Z." Here, the width direction X, the depth direction Y, and the height direction Z are perpendicular to one another. The width direction X corresponds to the axial direction of rotation of the opening / closing cover. The width direction X and the depth direction Y correspond to intersecting directions that intersect with the height direction Z. Furthermore, unless otherwise specified, each direction used in the following description represents a direction when each part is assembled to one another. Note that the term "perpendicular" here includes "almost perpendicular."

[0011] 1 and 2, the housing 1 is a box for housing electrical components, and is mounted on a vehicle, for example, and used as an electrical connection box. The housing 1 includes a main body 2, a holding cover 3, and an opening / closing cover 4.

[0012] The main body 2 is a housing capable of housing electrical components in its internal space, and is formed, for example, in the shape of a rectangular parallelepiped box. Here, the term "rectangular parallelepiped" includes a substantially rectangular parallelepiped. Electrical components include wiring members such as bus bars, fuses, relays, etc. However, the main body 2 may be configured in a shape other than a rectangular parallelepiped.

[0013] The retaining cover 3 is attached to the main body 2 so as to be openable and closable. For example, the retaining cover 3 is attached detachably to the main body 2. The retaining cover 3 is formed, for example, in the shape of a rectangular parallelepiped box with an open bottom, and is attached with the open bottom facing the main body 2. The open-close cover 4 is attached to the retaining cover 3 so as to be openable and closable. The open-close cover 4 is attached to the retaining cover 3 so as to be rotatable, and is provided so as to cover an opening 31 formed in the retaining cover 3 when closed. The retaining cover 3 and the open-close cover 4 form a double lid for the main body 2, and by opening the retaining cover 3 or the open-close cover 4, maintenance of the electrical components housed in the main body 2 can be performed.

[0014] As shown in Fig. 3, the holding cover 3 has a shaft 32. The shaft 32 is a shaft member that rotatably supports the opening / closing cover 4. The shaft 32 is formed, for example, as a columnar or cylindrical body and is provided in the width direction X. Specifically, the shaft 32 is provided between two wall portions 361 that stand on a raised portion 36 provided on the upper surface 3A of the holding cover 3. The two wall portions 361 are formed to be spaced apart in the width direction X, and the shaft 32 is supported by the two wall portions 361.

[0015] The shaft 32 has a protrusion 33 protruding from the outer periphery 32A. The protrusion 33 is arranged to press against the inner periphery 41A of the arm 42 when the opening-closing cover 4 is closed. The arm 42 is an arm member that is arranged on the opening-closing cover 4 and includes an arc portion. For example, the protrusion 33 protrudes from the outer periphery 32A toward the opening 31. Two protrusions 33 are provided spaced apart in the width direction X, and are provided, for example, at both ends of the shaft 32. For example, the cross section of the protrusion 33 in a direction intersecting the extension direction of the shaft 32 is mountain-shaped, and the protrusion 33 is tapered at the tip.

[0016] The retaining cover 3 has a locking portion 34 and a support portion 35. The locking portion 34 engages with a lock arm 43 of the opening / closing cover 4 to form a locking mechanism for the opening / closing cover 4. That is, the locking portion 34 engages with a claw portion 432 of the lock arm 43 to lock the opening / closing cover 4 in the closed position. The locking portion 34 is provided, for example, on a second wall portion 362 erected on the raised portion 36. The second wall portion 362 is provided at a position sandwiching the shaft portion 32 and the opening 31, and is formed along the width direction X and the height direction Z. The locking portion 34 is provided to protrude from a surface 362A of the second wall portion 362 on the opposite side to the opening 31.

[0017] The support portion 35 is provided so as to sandwich the claw portion 432 between itself and the locking portion 34. For example, the support portion 35 is provided on a surface 362A of the second wall portion 362, and supports the claw portion 432 that is inserted between itself and the locking portion 34. A tapered surface 351 is formed on the support portion 35. The tapered surface 351 is a surface that is inclined with respect to the insertion direction of the claw portion 432, and abuts against the tapered claw portion 432. In other words, the tapered surface 351 is formed so as to be inclined so that the distance between the locking portion 34 and the support portion 35 becomes narrower as it goes deeper in the insertion direction of the claw portion 432, and abuts against the surface of the tapered claw portion 432 parallel or approximately parallel.

[0018] 4, the open / close cover 4 has a cover body 41, an arm 42, and a lock arm 43. The cover body 41 is a portion that covers the opening 31 of the holding cover 3, and is configured, for example, by forming a hanging portion 412 that hangs down and extends from the edge portion of a rectangular lid portion 411.

[0019] The arm 42 is a plate body curved in an arc shape and is provided on the side of the cover main body 41. The arm 42 has, for example, an inner peripheral surface 42A with an inverted U-shaped cross section and extends along the width direction X. The arm 42 is provided with its arc portion wrapped around the shaft portion 32 of the holding cover 3 and supports the opening / closing cover 4 so that it can rotate around the shaft portion 32. The arm 42 has a protrusion 421 protruding from the inner peripheral surface 42A. The protrusion 421 is a projection that abuts against the outer periphery of the shaft portion 32 and prevents the shaft portion 32 from coming off the arm 42 when the arm 42 is arranged so as to be wrapped around the outer periphery of the shaft portion 32. The protrusion 421 is formed, for example, in a range that does not interfere with the protrusion 33 of the shaft portion 32 in the width direction X.

[0020] The locking arm 43 is a portion that engages with the locking portion 34 of the holding cover 3, and has an arm body 431 and a claw portion 432. The locking arm 43 is provided on the side of the cover body 41, and is formed in a position that allows it to engage with the locking portion 34 when the opening / closing cover 4 is closed. The arm body 431 is a plate formed in the height direction Z, and has a base end portion on the holding cover 3 side that is fixed, and a tip portion on the opposite side to the holding cover 3 that is a free end. The arm body 431 is provided so as to be elastically deformable in the depth direction Y, and deforms so as to move toward and away from the locking portion 34.

[0021] The claw portion 432 is formed at the tip portion of the lock arm 43. The claw portion 432 is formed to protrude from the surface of the arm body 431. That is, the claw portion 432 is provided so as to protrude toward the locking portion 34 when the opening / closing cover 4 is closed. The claw portion 432 is formed in a tapered shape so that the tip is sharp, and the surface that abuts against the tapered surface 351 of the support portion 35 is an inclined surface 432A. When the opening / closing cover 4 is closed, the claw portion 432 is inserted between the locking portion 34 and the support portion 35, and locks the opening / closing cover 4 in the closed state.

[0022] Next, opening and closing of the storage box 1 according to this embodiment will be described.

[0023] In Figure 2, when the storage box 1 has the retaining cover 3 attached to the main body 2 and the opening / closing cover 4 open relative to the retaining cover 3, maintenance of the electrical components stored inside can be performed through the opening 31.

[0024] As shown in Figure 5, when the opening / closing cover 4 is open relative to the holding cover 3, the protrusion 33 of the shaft 32 is not pressed against the inner circumferential surface 42A of the arm 42. In other words, when the opening / closing cover 4 is open, the protrusion 33 faces the open position of the U-shaped inner circumferential surface 42A, and the protrusion 33 is not pressed against the inner circumferential surface 42A. This allows the opening / closing cover 4 to be smoothly closed from an open state. When the opening / closing cover 4 is rotated from an open state in the closing direction, the arm 42 rotates around the shaft 32.

[0025] 6, when the opening / closing cover 4 is in the closed state, the protrusion 33 of the shaft 32 is pressed against the inner circumferential surface 42A of the arm 42. That is, as the opening / closing cover 4 rotates, the arm 42 rotates around the shaft 32, and the arc portion of the inner circumferential surface 42A rotates and moves to the position of the protrusion 33. As a result, the inner circumferential surface 42A of the arm 42 presses against the protrusion 33, and the shaft 32 and the arm 42 are pressed together. This prevents the opening / closing cover 4 from moving relative to the holding cover 3 in the closed state.

[0026] 7, when the opening / closing cover 4 is in the closed state, the locking arm 43 of the opening / closing cover 4 engages with the locking portion 34 of the holding cover 3. As a result, the opening / closing cover 4 is locked in the closed state relative to the holding cover 3 by the locking arm 43 and the locking portion 34. At this time, the locking arm 43 strongly presses against the holding cover 3. Therefore, the opening / closing cover 4 is prevented from moving relative to the holding cover 3 in the closed state.

[0027] Furthermore, the claw portion 432 of the lock arm 43 is inserted between the locking portion 34 and the support portion 35. Therefore, movement of the lock arm 43 in the height direction Z is restricted at the position of the locking portion 34. Furthermore, the inclined surface 432A of the claw portion 432 abuts against the tapered surface 351 of the support portion 35. Because the inclined surface 432A is a surface that conforms to the tapered surface 351, the claw portion 432 is inserted in a fitted state between the locking portion 34 and the support portion 35. Therefore, movement of the lock arm 43 in the height direction Z can be restricted.

[0028] When opening the opening / closing cover 4, the upper end of the locking arm 43 is rotated so as to move away from the engaging portion 34 and the support portion 35. This moves the claw portion 432 away from the engaging portion 34 and the support portion 35, disengaging the locking arm 43 from the engaging portion 34, and the opening / closing cover 4 can be rotated in the opening direction.

[0029] As described above, in the storage box 1 according to this embodiment, when the openable cover 4 is closed relative to the holding cover 3, the claw portion 432 of the lock arm 43 engages with the engaging portion 34. At this time, the claw portion 432 of the lock arm 43 is inserted between the engaging portion 34 and the support portion 35, and the inclined surface 432A of the claw portion 432 abuts against the tapered surface 351 of the support portion 35. Therefore, the claw portion 432 is held in a fitted state between the engaging portion 34 and the support portion 35. Therefore, the storage box 1 according to this embodiment can prevent the openable cover 4 from moving relative to the holding cover 3 when it is closed.

[0030] Furthermore, when used as an electric connection box mounted on a vehicle, the housing box 1 according to this embodiment is useful because it can accurately suppress movement of the opening / closing cover 4 in a vibrating environment.

[0031] In the storage box 1 according to this embodiment, the shaft 32 is provided with a protrusion 33, which presses against the inner peripheral surface 42A of the arm 42 when the opening / closing cover 4 is closed. Therefore, the storage box 1 according to this embodiment can prevent the opening / closing cover 4 from moving relative to the holding cover 3 when the opening / closing cover 4 is closed.

[0032] The storage box according to the present invention is not limited to the above-described embodiment, and various modifications are possible within the scope of the claims. The storage box 1 according to this embodiment may be configured by appropriately combining the components of the above-described embodiment and modified examples.

[0033] For example, in the above-described embodiment, the case where the housing box 1 is used as an electric junction box mounted on a vehicle has been described, but the housing box according to the present invention may be used as a housing box other than an electric junction box. In such a housing box, as in the above-described embodiment, it is possible to prevent the opening / closing cover from moving relative to the holding cover when it is closed. [Explanation of symbols]

[0034] 1: Storage box 2: Main body 3: Retaining cover 4: Opening and closing cover 34: Locking part 35: Support part 43: Lock Arm 351: Tapered surface 432: Claw part 432A: Inclined surface

Claims

1. a holding cover that is attached to the main body in an openable and closable manner; an opening / closing cover that can be opened and closed relative to the holding cover, The openable cover has a lock arm that forms a claw portion, the holding cover has a locking portion that engages with the claw portion when the open-close cover is closed, and a support portion that is provided so as to sandwich the claw portion between the locking portion and the holding cover when the locking portion and the claw portion are engaged with each other, the claw portion of the lock arm projects toward the engaging portion and the support portion and forms an inclined surface that abuts against the support portion; When the openable cover is closed relative to the holding cover, the lock arm presses the claw portion against the locking portion to engage with the claw portion, The support portion forms a tapered surface that comes into contact with the inclined surface of the claw portion. Storage box.

2. An electric junction box that is mounted on a vehicle and accommodates electric components in the main body. The storage box according to claim 1.

Images