Sealing structure of a storage box

Abstract

The present application provides a kind of sealing structure of storage box, by positioning the cover component, to improve sealing performance.The sealing structure of storage box has: recess (61);Sealing component (63) is arranged in the recess (61);And convex part (65) is sealed with the abutment of the sealing component (63), in opening portion has the centering structure (70) for guiding the opening and closing of cover component (40), the centering structure (70) is formed with: the first rib (71) and the second rib (73) projected from the two edges of the recess (61);And the guide portion (75,77) for guiding at least any one of the first rib (71) and the second rib (73) when opening and closing.

Description

Technical Field

[0001] This invention relates to a sealing structure for a storage box. Background Technology

[0002] Conventionally, in the sealing structure of a storage box having a sealing member provided in a recess and a convex portion that abuts against the sealing member for sealing, the sealing structure of the storage box that seals by abutting the convex portion against the sealing member is known (for example, see Patent Document 1). In Patent Document 1, by integrally foaming a sealing member made of foamed rubber into the recess, the lifting and falling off of the sealing member is suppressed.

[0003] Existing technical documents

[0004] Patent Document 1: Japanese Patent Application Publication No. 11-192985 Summary of the Invention

[0005] The problem that the invention aims to solve

[0006] In the sealed structure of a storage box, the sealing components and shell may shift due to aging, deformation caused by the stored items, or loosening of the hinges, potentially reducing the sealing performance.

[0007] The present invention was made in view of the above circumstances, and its purpose is to position the sealing components and protrusions of the storage box to improve the sealing performance.

[0008] Methods for solving problems

[0009] The sealing structure of the storage box includes: a recess; a sealing member disposed in the recess; and a protrusion that abuts against the sealing member to seal. The sealing structure of the storage box is characterized in that it has a centering structure at the opening for guiding the opening and closing of the cover member. The centering structure is formed to have: a first rib and a second rib protruding from both edges of the recess; and a guide portion that guides at least one of the first rib and the second rib when opening and closing.

[0010] Invention Effects

[0011] It has a centering structure for guiding the opening and closing of the cover component, and the sealing performance can be improved by positioning the sealing component and the protrusion. Attached Figure Description

[0012] Figure 1 This is a side view of the saddle-type vehicle according to the implementation method.

[0013] Figure 2 This is a perspective view of the storage box as described in the implementation method.

[0014] Figure 3 This is a perspective view of the casing of the storage box according to the implementation method.

[0015] Figure 4 This is a perspective view of the area near the centering region of the housing in the embodiment.

[0016] Figure 5 It is the edge with the cover component closed. Figure 4 A vertical sectional view of the cross section of the VV line.

[0017] Figure 6 This is a three-dimensional view of the centering structure of the implementation method.

[0018] Figure 7 It is the edge with the cover component closed. Figure 4 A vertical sectional view of the section along line VII-VII.

[0019] Figure 8 This is a perspective view of the area near the hinge of the housing in the embodiment.

[0020] Label Explanation

[0021] 10: Saddle-type vehicles;

[0022] 30: Storage box;

[0023] 40: Cover component;

[0024] 61: concave part;

[0025] 63: Sealing components;

[0026] 65: convex part;

[0027] 67: Sealing rib;

[0028] 70: Centering structure;

[0029] 71: First rib;

[0030] 71a: First inclined portion (inclined portion);

[0031] 73: Second rib;

[0032] 73a: Second inclined portion (inclined portion);

[0033] 75: First guiding section (guiding section);

[0034] 75a: First inclined surface (inclined surface);

[0035] 77: Second guiding section (guiding section);

[0036] 77a: Second inclined surface (inclined surface);

[0037] C: Axis of rotation;

[0038] V: Vertical direction;

[0039] O: The central part of the entire length. Detailed Implementation

[0040] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Furthermore, in the description, unless otherwise specified, directions such as front, back, left, right, and up / down are assumed to be the same as directions relative to the vehicle body. Additionally, in each figure, the reference numeral FR indicates the front of the vehicle body, the reference numeral UP indicates the top of the vehicle body, and the reference numeral LH indicates the left side of the vehicle body.

[0041] [Implementation Method]

[0042] Figure 1 This is a side view of a saddle-type vehicle 10 according to an embodiment of the present invention.

[0043] The saddle-type vehicle 10 is a vehicle comprising the following parts: a frame 11, a power unit 12 supported on the frame 11, a front fork 14 supporting the front wheel 13 for steering, a swing arm 16 supporting the rear wheel 15, and a seat 17 for the passenger.

[0044] The saddle-riding vehicle 10 is a vehicle in which the occupant sits on the seat 17 in a straddling manner. The seat 17 is located above the rear of the frame 11.

[0045] The frame 11 includes: a front riser tube 18 disposed at the front end of the frame 11, a front frame 19 located behind the front riser tube 18, and a rear frame 20 located behind the front frame 19. The front end of the front frame 19 is connected to the front riser tube 18.

[0046] Seat 17 is supported by rear frame 20.

[0047] The front fork 14 is supported by the front seat tube 18 for easy left and right steering. The front wheel 13 is supported on an axle 13a located at the lower end of the front fork 14. A handlebar 21 for steering, held by the rider, is mounted on the upper end of the front fork 14.

[0048] The swing arm 16 is supported by a pivot 22 supported on the frame 11. The pivot 22 is a horizontally extending shaft in the vehicle width direction. The pivot 22 is inserted through the front end of the swing arm 16. The swing arm 16 swings up and down around the pivot 22.

[0049] The rear wheel 15 is supported on an axle 15a located at the rear end of the swing arm 16.

[0050] The power unit 12 is positioned between the front wheel 13 and the rear wheel 15 and is supported on the frame 11.

[0051] The power unit 12 is an internal combustion engine. The power unit 12 includes a crankcase 23 and a cylinder section 24 that houses a reciprocating piston. The exhaust port of the cylinder section 24 is connected to an exhaust device 25.

[0052] The output of the power unit 12 is transmitted to the rear wheel 15 through a drive force transmission component that connects the power unit 12 and the rear wheel 15.

[0053] In addition, the saddle-type vehicle 10 has: a front fender 26 that covers the front wheel 13 from above, a rear fender 27 that covers the rear wheel 15 from above, a footrest 28 for the occupant to place their feet, and a fuel tank 29 for storing fuel used by the power unit 12.

[0054] The front fender 26 is mounted on the front fork 14. The rear fender 27 and footpeg 28 are positioned below the seat 17. The fuel tank 29 is supported on the frame 11.

[0055] The saddle-type vehicle 10 has a storage box 30 at the rear of the vehicle.

[0056] Figure 2 This is a 3D model of storage box 30.

[0057] A pair of storage boxes 30 are mounted on the left and right sides of the frame 11 via tubular mounting components 31.

[0058] Since the left and right storage boxes 30 have the same structure, the following description will focus on the storage box 30 installed on the right side. For the storage box 30 installed on the left side, the same numbers will be used to mark the same parts and the description will be omitted.

[0059] The storage box 30 has a lid 40 and a housing 51 with a storage section.

[0060] The housing 51 is a box-shaped component with an opening at the top. The cover component 40 is hinged to the front of the housing 51 and is opened by lifting the rear part 40a of the cover component 40.

[0061] A lock cylinder 53 and a push-button operating part 55 are disposed on the rear surface of the housing 51. By pressing the operating part 55, the fixation between the rear part 40a of the cover member 40 and the rear part of the housing 51 is released, thereby enabling the opening and closing of the cover member 40. A key 54 can be inserted into the lock cylinder 53 and rotated. When the key 54 is turned to the locked position, it is locked such that even if the operating part 55 is pressed, the fixation between the cover member 40 and the housing 51 cannot be released.

[0062] Figure 3 This is a perspective view of the housing 51. The housing 51 and the cover component 40 are connected at the front by a hinge 33. The hinge 33 is covered by a cover 52.

[0063] The housing 51 has a protrusion 65 approximately circumferentially around the edge of the opening. On the side of the protrusion 65, a first guide portion (guide portion) 75 and a second guide portion (guide portion) 77 are provided on a portion of the edge of the housing 51 (centering regions S1, S2). In this embodiment, the first guide portion 75 is provided on the side of the protrusion 65 inside the housing 51, covering approximately the entire area of ​​the centering regions S1, S2, and is formed to bulge inwards towards the housing 51. Figure 4 As shown, the second guide portion 77 is a plurality of protrusions extending in the vertical direction and is disposed on the side of the outer side of the housing 51 of the protrusion 65. The first guide portion 75 and the second guide portion 77 are formed such that the width of the protrusion 65 including the first guide portion 75 and the second guide portion 77 is wider than the width of the end of the protrusion 65.

[0064] like Figure 3 As shown, the first guide portion 75 and the second guide portion 77 are both provided in the centering regions S1 and S2. The centering regions S1 and S2 are provided at the edge of the housing 51 extending in the front-back direction (i.e., the direction intersecting the rotation axis C of the cover member 40 based on the hinge 33).

[0065] In addition, the centering regions S1 and S2 are both located in front of the center part O of the entire length of the housing 51 in the front-rear direction (on the side of the housing 51 closer to the rotation axis C in the vertical direction V relative to the rotation axis C).

[0066] Furthermore, the centering regions S1 and S2 are both located at the left and right edges of the housing 51 in positions that do not overlap when the vehicle is viewed from the side (in the direction of the rotation axis C).

[0067] Figure 5 It is in the state where the cover component 40 is closed, along Figure 4 The vertical sectional view of the cross section of line VV. The VV section is contained within the centering region S1. Furthermore, the description of the centering region S2 is the same as that of the centering region S1, therefore, the description is omitted below.

[0068] The housing 51 includes a housing body 57 and a housing decorative panel 58. The housing decorative panel 58 is a panel covering the outer surface of the housing body 57 to improve its appearance. The housing body 57 is a box-shaped component with a protrusion 65 formed in the housing 51. A sealing rib 67 is formed at the end of the protrusion 65. The cover component 40 includes a cover component body 41 and a cover component decorative panel 43. The cover component decorative panel 43 is a panel covering the outer surface of the cover component body 41 to improve its appearance. The cover component body 41 abuts against the housing body 57 of the housing 51 when the cover component 40 is closed.

[0069] At the edge of the cover member 40, the cover member body 41 has a recess 61 formed by recess walls 61a and 61b and a hollow sealing member 63 embedded in the inner side of the recess 61.

[0070] The recess 61, sealing member 63, and protrusion 65 form a sealing structure 60. In the sealing structure 60, the sealing rib 67 presses the sealing member 63, and the pressed hollow sealing member 63 deforms to fill and seal the space between the recess 61 and the protrusion 65, thereby achieving the sealing of the storage box 30.

[0071] In the centering region S1, the cover member 40 has a first rib 71 and a second rib 73 on the cover member body 41. The first rib 71 and the second rib 73 are formed to protrude downward from the recessed walls 61a and 61b. The first rib 71 and the second rib 73 provided on the cover member body 41 of the cover member 40, and the first guide portion 75 and the second guide portion 77 provided on the housing body 57 of the housing 51, form a centering structure 70. That is, in the centering regions S1 and S2, the storage box 30 has a centering structure 70.

[0072] Regarding the centering structure 70, when the cover component 40 is closed, the first rib 71 abuts against the first guide portion 75, and the second rib 73 abuts against the second guide portion 77. Thus, the centering structure 70 positions the cover component 40 and the housing 51. Specifically, the first rib 71 is guided by the first guide portion 75, and the second rib 73 is guided by the second guide portion 77, causing the sealing rib 67 of the housing body 57 provided on the housing 51 to abut near the center of the sealing member 63 of the cover component body 41 provided on the cover component 40. This improves the sealing performance based on the sealing structure 60.

[0073] In addition, if the centering structure 70 is configured to guide at least one of the first rib 71 and the second rib 73, it can help improve the sealing performance.

[0074] Here, the first guide portion 75 and the second guide portion 77 have a first inclined surface (inclined surface) 75a and a second inclined surface (inclined surface) 77a. The first inclined surface 75a and the second inclined surface 77a are respectively provided on the surfaces of the first guide portion 75 and the second guide portion 77 that are opposite to the first rib 71 and the second rib 73. The first inclined surface 75a and the second inclined surface 77a are inclined in a manner that extends laterally from the upper surface of the first guide portion 75 and the second guide portion 77 downward.

[0075] Therefore, stress concentration can be suppressed when the first guide portion 75 and the second guide portion 77 come into contact with the first rib 71 and the second rib 73.

[0076] Furthermore, when a load is applied to the cover component 40, the first rib 71 and the second rib 73 abut against the first rib bearing portion 72 and the second rib bearing portion 74 respectively provided on the housing 51.

[0077] Figure 6 This is a perspective view of the centering structure 70 with the cover component 40 closed. The dashed lines in the figure are the outline of the second rib 73.

[0078] In the centering structure 70, on the side of the first rib 71 and the second rib 73 near the hinge 33 ( Figure 6 The upper left end has a first inclined portion (inclination portion) 71a and a second inclined portion (inclination portion) 73a.

[0079] In the first inclined portion 71a and the second inclined portion (inclined portion) 73a, the vertical length of the first rib 71 and the second rib 73 is inclined in such a way that it becomes shorter in the direction close to the hinge 33.

[0080] Therefore, when the first rib 71 and the second rib 73 abut against the first guide portion 75 and the second guide portion 77, stress concentration at the end near the hinge 33 is suppressed.

[0081] Figure 7 It is in the state where the cover component 40 is closed, along Figure 4 The vertical sectional view of the section along line VII-VII. Section VII-VII is not included in the centering regions S1 and S2.

[0082] The storage box 30 also has a sealing structure 60, including a recess 61, a sealing member 63, and a protrusion 65, at the edges of the cover member 40 and the housing 51 outside the centering regions S1 and S2. Therefore, the cover member 40 and the edges of the housing 51 outside the centering regions S1 and S2 are also sealed by the sealing structure 60.

[0083] On the other hand, the storage box 30 does not have a centering structure 70 at the cover part 40 and the edge of the shell 51 outside the centering areas S1 and S2. As a result, the area where the complex centering structure 70 is installed can be reduced.

[0084] Figure 8 This is a 3D view of the area near hinge 33.

[0085] At the front of the housing body 57, a hinge fixing groove 56a is formed by a hinge fixing part 56. The hinge 33 inserts its lower side into the inside of the hinge fixing groove 56a and is fixed by a screw 59 through the hinge fixing part 56, thereby the hinge 33 is installed on the housing body 57.

[0086] As a result, the fixed part between the hinge 33 and the housing body 57 is difficult to see, thus improving the appearance.

[0087] Additionally, screw 59 also secures cover 52. Cover 52 is fixed at one end to hinge fixing part 56 and at the other end to cover component body 41, thus restricting the opening angle of cover component 40 while covering hinge 33. Therefore, the appearance is further improved.

[0088] Regarding the storage box 30 constructed as described above, the following describes the operation of the lid component 40 when it is closed in the open state.

[0089] When the cover component 40 is closed with the hinge 33 as the rotation center, firstly, near the hinge 33, the edge of the cover component 40 comes into contact with the edge of the housing 51.

[0090] When the edge of the cover member 40 contacts the edge of the housing 51, in the sealing structure 60, the sealing rib 67 located at the end of the protrusion 65 is pressed against the hollow sealing member 63 embedded in the recess 61. As a result, the sealing member 63 is flattened, and the compressed sealing member 63 fills the gap between the recess 61 and the protrusion 65, thus achieving a firm seal.

[0091] Next, in the centering structure 70, the housing 51 and the cover component 40 also begin to come into contact.

[0092] In the centering structure 70, firstly, at least one of the first rib 71 and the second rib 73 contacts the first guide portion 75 or the second guide portion 77. The widths of the first guide portion 75 and the second guide portion 77 are wider than the width of the end portion of the protrusion 65. Therefore, the first guide portion 75 and the second guide portion 77 guide at least one of the contacting first rib 71 and the second rib 73 away from the sealing rib 67 located at the end of the protrusion 65, and the sealing rib 67 abuts against the vicinity of the center of the sealing member 63. Thus, the sealing member 63 is guided to be flattened near its center by the sealing rib 67, thereby improving the sealing performance.

[0093] Furthermore, as described above, the centering structure 70 is positioned closer to the rotation axis C than the center portion O along the vertical direction V relative to the rotation axis C. Therefore, after the cover component 40 is closed, the housing 51 and the cover component 40 immediately begin to contact within the centering structure 70. Consequently, sealing performance can also be improved near the rotation axis C based on the hinge 33.

[0094] Furthermore, as previously described, the cover member 40 and the housing 51 are closed by rotation centered on the hinge 33. Therefore, when the housing 51 begins to contact the cover member 40 in the centering structure 70 located at one edge, at the opposite edge, in the sealing structure 60 at the position overlapping the centering structure 70 when viewed from the direction of the rotation axis C based on the hinge 33, the housing 51 also begins to contact the cover member 40.

[0095] In this case, positioning based on centering structure 70 is performed at one edge. Therefore, even if centering structure 70 is not provided at the opposite edge where housing 51 and cover member 40 begin to contact simultaneously, positioning of sealing member 63 and sealing rib 67 is still possible.

[0096] Therefore, when viewed from the direction of the rotation axis C based on hinge 33, the centering structure 70 is set in non-overlapping centering regions S1 and S2, thereby preventing the structure from becoming complicated and enabling efficient positioning.

[0097] After the housing 51 and the cover member 40 come into contact in the centering structure 70 located at two locations, the housing 51 and the cover member 40 also begin to come into contact at the edge of the housing 51 and the cover member 40 on the side away from the hinge 33 where the centering structure 70 is not located.

[0098] At this point, the edge between the housing 51 and the cover member 40 has already been positioned in the part where the centering structure 70 is provided, so the positional displacement of the sealing rib 67 and the sealing member 63 can also be suppressed in the remaining part.

[0099] Therefore, even if the centering structure 70 is not provided around the entire circumference of the edge of the housing 51 and the cover member 40, it can be effectively positioned over a large area of ​​the edge of the housing 51 and the cover member 40.

[0100] Then, the edge of the housing 51 opposite to the hinge 33 comes into contact with the edge of the cover component 40, and the housing 51 and the cover component 40 are closed.

[0101] In addition, in the structure shown above, it is also possible that the structure provided in the cover member 40 is provided in the housing 51, and the structure provided in the housing 51 is provided in the cover member 40.

[0102] For example, the cover body 41 of the cover member 40 may have a protrusion 65, a first guide 75 and a second guide 77, and the housing body 57 of the housing 51 may have a recess 61, a sealing member 63, a first rib 71 and a second rib 73.

[0103] As described above, according to the embodiment of the present invention, the sealing structure 60 of the storage box 30 includes: a recess 61; a sealing member 63 disposed in the recess 61; and a protrusion 65 that abuts against the sealing member 63 to seal. The opening has a centering structure 70 for guiding the opening and closing of the cover member 40. The centering structure 70 is formed to have a first rib 71 and a second rib 73 protruding from both edges of the recess 61, and a first guide portion 75 and a second guide portion 77 that guide at least one of the first rib 71 and the second rib 73 when opening and closing.

[0104] According to this structure, when the cover component 40 is closed, the protrusion 65 and the sealing component 63 can be positioned by the centering structure 70. Therefore, the sealing performance can be improved.

[0105] In addition, the first guide portion 75 and the second guide portion 77 guide the first rib 71 and the second rib 73.

[0106] According to this structure, when the cover component 40 is closed, the first guide portion 75 and the second guide portion 77 guide both the first rib 71 and the second rib 73, thereby enabling more secure positioning of the protrusion 65 and the sealing component 63. Therefore, the sealing performance is further improved.

[0107] In addition, the sealing member 63 is hollow, and the sealing rib 67 formed on the protrusion 65 presses the sealing member 63 to seal the space between the recess 61 and the protrusion 65.

[0108] According to this structure, the sealing rib 67, positioned by the centering structure 70, significantly flattens the hollow sealing member 63, and the flattened sealing member 63 can fill the gap between the recess 61 and the protrusion 65. Therefore, a strong seal can be achieved, and the sealing performance can be improved.

[0109] In addition, the centering structure 70 is provided in the direction of the storage box 30 intersecting the rotation axis C of the cover member 40, and is provided at a position closer to the rotation axis C than the center O of the storage box 30 in the vertical direction V relative to the rotation axis C.

[0110] According to this structure, the protrusion 65 and the sealing member 63 can be positioned immediately after the cover member 40 begins to close. Therefore, the sealing performance can also be improved near the axis of rotation C.

[0111] In addition, the centering structure 70 is positioned in the storage box 30 at a position that does not overlap with the rotation axis C of the cover member 40.

[0112] According to this structure, the range of the centering structure 70 can be reduced, and the sealing performance can be improved while simplifying the structure.

[0113] In addition, the first rib 71 and the second rib 73 have a first inclined portion 71a and a second inclined portion 73a on the rotation axis C side.

[0114] According to this structure, when the cover component 40 is closed, it is possible to suppress the application of strong loads to the rotation axis C side of the first rib 71 and the second rib 73. Therefore, the durability of the centering structure 70 can be improved, and the sealing performance can be improved over a long period of time.

[0115] In addition, the first guide portion 75 and the second guide portion 77 have a first inclined surface 75a and a second inclined surface 77a on the surface opposite to the first rib 71 or the second rib 73.

[0116] According to this structure, when the cover component 40 is closed, stress concentration can be suppressed when the first guide portion 75, the second guide portion 77 abut against the first rib 71 or the second rib 73. Therefore, the durability of the centering structure 70 can be improved, and the sealing performance can be improved over a long period of time.

[0117] [Structure supported by the above embodiments]

[0118] The above implementation supports the following structures.

[0119] (Structure 1) A sealing structure for a storage box, comprising: a recess; a sealing member disposed in the recess; and a protrusion abutting against the sealing member for sealing, the sealing structure of the storage box being characterized in that it has a centering structure at the opening for guiding the opening and closing of a cover member, the centering structure being formed having: a first rib and a second rib protruding from two edges of the recess; and a guide portion for guiding at least one of the first rib and the second rib during opening and closing.

[0120] According to this structure, when the cover component is closed, the protrusion and the sealing component can be positioned by the centering mechanism. Therefore, the sealing performance can be improved.

[0121] (Structure 2) The sealing structure of the storage box according to Structure 1 is characterized in that the guide portion guides both the first rib and the second rib.

[0122] According to this structure, when the cover component is closed, the guide portion guides both the first and second ribs, thereby enabling more secure positioning of the protrusion and the sealing component. Therefore, the sealing performance is further improved.

[0123] (Structure 3) The sealing structure of the storage box according to Structure 1 or 2 is characterized in that the sealing component is hollow, and the sealing rib formed on the protrusion presses the sealing component to seal the recess and the protrusion.

[0124] According to this structure, the sealing ribs, positioned by the centering mechanism, significantly flatten the hollow sealing component, allowing it to fill the gap between the recesses and convex parts. Therefore, a strong seal is achieved, improving sealing performance.

[0125] (Structure 4) The sealing structure of the storage box according to any one of Structures 1 to 3 is characterized in that the centering structure is provided in the direction intersecting the rotation axis of the storage box with the rotation axis of the cover member, and is provided at a position closer to the rotation axis than the center of the storage box in the vertical direction relative to the rotation axis.

[0126] According to this structure, the protrusion can be positioned with the sealing component immediately after the cover component begins to close. Therefore, the sealing performance can also be improved near the axis of rotation.

[0127] (Structure 5) The sealing structure of the storage box according to any one of Structures 1 to 4 is characterized in that the centering structure is disposed in the storage box at a position that does not overlap with the rotation axis of the cover member.

[0128] This structure allows for a narrowing of the range of centering components and improves sealing performance while simplifying the construction.

[0129] (Structure 6) The sealing structure of the storage box according to Structure 4 is characterized in that the first rib and the second rib have inclined portions on the side of the rotation axis.

[0130] According to this structure, when the cover component is closed, it is possible to suppress strong loads applied to the rotation axis sides of the first and second ribs. Therefore, the durability of the centering structure can be improved, and the sealing performance can be enhanced over a long period of time.

[0131] (Structure 7) The sealing structure of the storage box according to any one of Structures 1 to 6 is characterized in that the guide portion has an inclined surface on the surface opposite to the first rib or the second rib.

[0132] According to this structure, when the cover component is closed, stress concentration when the guide portion abuts against the first or second rib can be suppressed. Therefore, the durability of the centering structure can be improved, and the sealing performance can be enhanced over a long period of time.

Claims

1. A sealing structure of a storage box, the storage box (30) including: a housing (51) having an upper opening, which is provided at a rear of a saddle-riding vehicle; and a lid member (40) which is linkable to a rim portion of the housing (51) via a hinge (33) in an openable and closable manner, the sealing structure of the storage box including: a recess portion (61) provided in the lid member (40); a sealing member (63) provided in the recess portion (61); and a protrusion portion (65) provided in a peripheral edge of an opening portion of the housing (51) and sealingly abutting against the sealing member (63), characterized in that the opening portion has a centering structure (70) for guiding opening and closing of the lid member (40), the centering structure (70) is formed to have: a first rib (71) and a second rib (73) which protrude from both rims of the recess portion (61); and a guide portion (75, 77) which guides at least either one of the first rib (71) and the second rib (73) at the time of opening and closing, the guide portion (75, 77) being provided on the rotation axis side of a rim portion in a direction intersecting with a rotation axis (C) of the hinge (33) among the rim portions of the housing (51).

2. The sealing structure of the storage box according to claim 1, characterized in that the guide portion (75, 77) guides both the first rib (71) and the second rib (73).

3. The sealing structure of the storage box according to claim 1, characterized in that the sealing member (63) is hollow, a sealing rib (67) formed in the protrusion portion (65) presses the sealing member (63) to seal between the recess portion (61) and the protrusion portion (65).

4. The sealing structure of the storage box according to claim 1, characterized in that the centering structure (70) is provided at positions in the storage box (30) which do not overlap in a direction of the rotation axis (C) of the lid member (40).

5. The sealing structure of the storage box according to claim 1, characterized in that the first rib (71) and the second rib (73) have inclined portions (71a, 73a) on the rotation axis (C) side.

6. The sealing structure of the storage box according to any one of claims 1 to 5, characterized in that the guide portion (75, 77) has an inclined surface (75a, 77a) on a surface opposite to the first rib (71) or the second rib (73).

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