Side door, movable body, and manufacturing method of side door

The side door design with a ductile sub-panel embedded in a reinforced inner panel effectively contains fragments during a side collision, ensuring occupant safety by preventing scattering and maintaining structural integrity.

JP2025153816APending Publication Date: 2025-10-10MITSUI CHEMICALS INC
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
JP2024056459
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-03-29
Publication Date
2025-10-10

AI Technical Summary

Technical Problem

In the event of a side collision, fragments of the inner panel of a vehicle's side door can scatter throughout the interior, posing a risk to occupants.

Method used

A side door design featuring an inner panel composed of a main panel with a fibrous reinforcing material and a sub-panel with higher ductility, embedded within the main panel to absorb and contain fragments during impact.

Benefits of technology

Prevents inner panel fragments from scattering inside the vehicle, enhancing occupant safety by containing debris and maintaining structural integrity during a side collision.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025153816000001_ABST
    Figure 2025153816000001_ABST
Patent Text Reader

Abstract

To provide a side door which can inhibit fragments of an inner panel from scattering in a passenger compartment of a movable body during a lateral collision.SOLUTION: A side door is provided on a side surface of a movable body main part and includes an outer panel and an inner panel provided at the inner side of the movable body of the outer panel. The inner panel includes: a main inner panel part formed by a resin composition containing a fiber reinforcement material; a main inner panel part; and a sub inner panel part which overlaps the main inner panel part in a thickness direction and has ductility higher than that of the main inner panel part.SELECTED DRAWING: Figure 3
Need to check novelty before this filing date? Find Prior Art

Description

[Technical Field]

[0001] The present invention relates to a side door, a moving body, and a method for manufacturing a side door. [Background technology]

[0002] Conventionally, there are known mobile bodies such as automobiles that are provided with side doors for opening and closing the entrance / exit doors. The side doors include, for example, an outer door member (in other words, an outer panel) and an inner door member (in other words, an inner panel) attached to the inside of the outer door member (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2016 / 084808 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, an object (e.g., another vehicle) may collide with the side of a moving body. In such a collision (hereinafter referred to as a side collision), the object collides with the side door. If the inner panel is damaged, fragments of the inner panel may be scattered throughout the interior of the moving body.

[0005] An object of the present invention is to provide a side door, a moving body, and a method for manufacturing a side door that can prevent fragments of an inner panel from scattering inside the vehicle interior of the moving body in the event of a side collision. [Means for solving the problem]

[0006] One aspect of the side door according to the present invention is A side door provided on a side surface of a moving body, An outer panel, an inner panel provided on a side of the outer panel that is positioned inside the moving body; A side door comprising: The inner panel is a main inner panel portion made of a resin composition containing a fibrous reinforcing material; The sheet has a main inner panel portion and a sub-inner panel portion that overlaps the main inner panel portion in the thickness direction and has higher ductility than the main inner panel portion.

[0007] One aspect of the moving body according to the present invention is The side door as described above; The mobile body includes:

[0008] One aspect of the manufacturing method of the side door according to the present invention is A method for manufacturing a side door having an outer panel and an inner panel, The process includes an insert molding step in which a cloth-like member is placed in a mold, and a resin composition containing a fibrous reinforcing material is filled into the mold to form an inner panel. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a side door and a vehicle that can prevent fragments of an inner panel from scattering inside the vehicle cabin in the event of a side collision. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a side view of a moving body according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a side view of the side door according to the first embodiment. [Figure 3] FIG. 3 is a cross-sectional view taken along the line X1-X1 of FIG. [Figure 4] FIG. 4 is an enlarged schematic view of the Y portion in FIG. [Figure 5A] FIG. 5A is a cross-sectional view of a side door for explaining the state of the side door during a side collision. [Figure 5B]FIG. 5B is a cross-sectional view of a side door for explaining the state of the side door at the time of a side collision. [Figure 6] FIG. 6 is a cross-sectional view of an inner panel according to the second embodiment. [Figure 7] FIG. 7 is a side view of the side door according to the third embodiment. [Figure 8] FIG. 8 is a view taken along the X2-X2 plane of FIG. [Figure 9] FIG. 9 is a cross-sectional view taken along the line X3-X3 in FIG. [Figure 10] FIG. 10 is a cross-sectional view of a side door according to the fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, a side door, a moving body, and a method for manufacturing a side door according to the present invention will be described in detail with reference to the drawings. Note that the side door, the moving body, and the method for manufacturing a side door described below are examples of the side door, the moving body, and the method for manufacturing a side door according to the present invention, and the present invention is not limited to the embodiments described below.

[0012] [Embodiment 1] A side door 2 and a moving body 1 according to a first embodiment of the present invention will be described with reference to FIGS.

[0013] FIG. 1 is a side view of a moving body 1 to which a side door 2 according to this embodiment is attached. An example of the moving body 1 is an automobile as shown in FIG. 1. However, the moving body 1 is not limited to an automobile. The moving body 1 may be various moving bodies (moving devices) equipped with a side door. Specifically, the moving body 1 may be a ship, an aircraft, an air vehicle, a drone, a robot, etc. If the moving body 1 is an automobile, the moving body 1 may also be a bus, a truck, a work vehicle, etc.

[0014] Fig. 2 is a side view of the side door 2 according to this embodiment. Specifically, Fig. 2 is a side view of the right rear seat side door 2 as seen from inside the vehicle compartment of the moving object 1. In the following, when describing the structures of the moving object 1 and the side door 2, a Cartesian coordinate system (X, Y, Z) shown in each figure will be used.

[0015] The X direction, Y direction, and Z direction refer to the directions in a state in which the side door 2 is assembled to the moving body 1.

[0016] Specifically, the X direction corresponds to the front-to-back direction of the moving body 1. The positive side of the X direction corresponds to the front side of the moving body 1. The negative side of the X direction corresponds to the rear side of the moving body 1. The Y direction corresponds to the left-to-right direction of the moving body 1. The positive side of the Y direction corresponds to the left side when looking at the moving body 1 from behind. The negative side of the Y direction corresponds to the right side when looking at the moving body 1 from behind.

[0017] The Y direction also corresponds to the vehicle width direction of the moving body 1. The inward direction in the vehicle width direction is the direction approaching the center of the moving body 1 in the left-right direction. The outward direction in the vehicle width direction is the direction away from the center of the moving body 1 in the left-right direction. Hereinafter, unless otherwise specified, the terms "inward" and "outward" refer to the inside and outside in the vehicle width direction. The Y direction also corresponds to the thickness direction of the side door 2.

[0018] The Z direction corresponds to the up-down direction of the moving body 1. The positive Z direction corresponds to the upper side of the moving body 1. The negative Z direction corresponds to the lower side of the moving body 1.

[0019] In this specification, the term "upper side" refers to the upper side in the vertical direction, and the term "lower side" refers to the lower side in the vertical direction.

[0020] The side door 2 is a door provided at the right rear seat of the moving body 1. The side door 2 is attached to a vehicle body 10 of the moving body 1 (moving body body, see FIG. 1) in a state in which it can slide in the front-rear direction.

[0021] The side door according to this embodiment is not limited to the side door of the right rear seat of the vehicle 1. The side door according to this embodiment may be the side door of the left rear seat. Moreover, the side door according to this embodiment is not limited to a sliding side door.

[0022] The side doors according to this embodiment may be pivotable side doors (swing doors, hinge doors) provided at the front right and left seats of the moving body 1.

[0023] The side door 2 has a door body 3 , a window frame 8 , and a window panel 9 .

[0024] The door body 3 includes an outer panel 4, an inner panel 5, a reinforcing portion 6, and a door lock device 7.

[0025] The outer panel 4 is provided on the outermost side of the door body 3. The outer panel 4 is a plate-shaped member made of a resin composition. The resin composition constituting the outer panel 4 is not particularly limited, but may be, for example, a resin composition containing a thermoplastic resin. Examples of the thermoplastic resin include polyester resins such as polycarbonate, polyethylene terephthalate, polytrimethylene terephthalate, and polybutylene terephthalate; styrene-based resins such as polystyrene resin, high-impact polystyrene resin (HIPS), acrylonitrile-styrene copolymer (AS resin), acrylonitrile-butadiene-styrene copolymer (ABS resin), acrylonitrile-styrene-acrylic rubber copolymer (ASA resin), and acrylonitrile-ethylene propylene rubber-styrene copolymer (AES resin); polyolefin resins such as polyethylene and polypropylene; polyamide, polyimide, polyetherimide, polyurethane, polyphenylene ether, polyphenylene sulfide, polysulfone, and polymethacrylate. Among these, polyolefin resins are preferred, and polypropylene is more preferred, because they have a small specific gravity, can reduce the weight of the side door 2 and the moving body 1, and are easy to process.

[0026] The outer panel 4 is preferably made of a resin composition that is substantially free of fibrous reinforcing materials such as glass fibers, more preferably a thermoplastic resin composition that is substantially free of fibrous reinforcing materials. By making the outer panel 4 from a material that is substantially free of fibrous reinforcing materials, it is possible to improve the surface appearance. Note that the "resin composition that is substantially free of fibrous reinforcing materials" here may also be a resin composition in which the content of fibrous reinforcing materials is 1% by mass or less when the entire resin composition is taken as 100% by mass.

[0027] The inner panel 5 is a member provided inside the outer panel 4. In other words, the inner panel 5 is provided on the side of the outer panel 4 that is located inside the vehicle body 10 (inside the vehicle) when the side door 2 is assembled to the moving body 1. An outer peripheral edge portion of the inner panel 5 (specifically, an outer peripheral edge portion 511 of a main inner panel portion 51 described below) is fixed to an outer peripheral edge portion 41 of the outer panel 4 by fixing means such as fastening parts (e.g., bolts).

[0028] In the thickness direction (in other words, the Y direction), an accommodation space 31 is provided between the inner panel 5 and the outer panel 4. The accommodation space 31 is provided with door devices such as a lifting mechanism (not shown) that lifts and lowers a window panel 9 (described later) and a door lock unit 72 of a door lock device 7 (described later).

[0029] The inner panel 5 has a main inner panel portion 51 and a sub-inner panel portion 52. The inner panel 5 may have a configuration (not shown) other than the main inner panel portion 51 and the sub-inner panel portion 52.

[0030] The main inner panel portion 51 constitutes the framework of the inner panel 5. The main inner panel portion 51 is a plate-like member made of a resin composition containing a fibrous reinforcing material. The resin composition constituting the main inner panel portion 51 is not particularly limited, but may be, for example, a fiber-reinforced resin composition containing a thermoplastic resin and a fibrous reinforcing material. The thermoplastic resin is similar to the thermoplastic resin that may be contained in the resin composition constituting the outer panel 4, and is preferably a polyolefin-based resin, more preferably polypropylene. The fibrous reinforcing material contained in the resin composition may be glass fiber, carbon fiber, metal fiber, natural fiber, ceramic fiber, synthetic fiber, or the like, and is preferably glass fiber or carbon fiber, and more preferably glass fiber.

[0031] The content of fibrous reinforcing material contained in the resin composition constituting the main inner panel portion 51 is, when the entire resin composition is taken as 100% by mass, for example, 20% by mass or more and 45% by mass or less, preferably 25% by mass or more and 40% by mass or less, and more preferably 28% by mass or more and 32% by mass or less.

[0032] The rigidity of such a main inner panel portion 51 is higher than the rigidity of the outer panel 4. Therefore, it is possible to improve the rigidity of the side door 2 while reducing the weight of the side door 2. An outer peripheral edge portion 511 of the main inner panel portion 51 is fixed to the outer peripheral edge portion 41 of the outer panel 4 by fixing means (not shown) such as fastening parts (for example, bolts).

[0033] The sub-inner panel portion 52 is provided on the outside of the main inner panel portion 51 so as to overlap the main inner panel portion 51 in the thickness direction of the main inner panel portion 51. The sub-inner panel portion 52 has higher ductility than the main inner panel portion 51.

[0034] In this embodiment, the sub-inner panel portion 52 is a fiber mat made of a fiber material. A fiber mat is a cloth-like member formed by intertwining fine fiber materials. The cloth-like member has a structure in which the fiber materials are intertwined, and exhibits flexibility in areas other than the points where the fiber materials are intertwined, resulting in high ductility. Specifically, the sub-inner panel portion 52 is a glass fiber mat. A glass fiber mat is made by weaving glass fibers that have been processed (e.g., bulky processed) to impart bulkiness and elasticity into a mat shape. Examples of glass fiber mats include chopped strand mats, surface mats, cross mats, and roving cloths. Note that the cloth-like member is not limited to a fiber mat and may be a cloth obtained by weaving a fiber material, or a nonwoven fabric or felt obtained without weaving a fiber material.

[0035] The count of the fiber mat constituting the sub-inner panel portion 52 is 30 g / m 2 More than 800g / m 2 The following is preferred: 50 g / m 2 More than 250g / m 2 The count of the fiber mat constituting the sub-inner panel portion 52 is preferably 180 g / m or less. 2 It may be.

[0036] The fiber mat may be any of various fiber mats made of fiber materials, such as a mat in which the fiber material is woven regularly or a mat in which the fiber material is woven randomly.

[0037] The sub-inner panel portion 52 has a first sub-inner panel portion 521 and a second sub-inner panel portion 522 .

[0038] The first sub-inner panel portion 521 is provided at a position facing in the thickness direction a predetermined range including the center in the front-to-rear direction of the main inner panel portion 51. The center in the front-to-rear direction of the main inner panel portion 51 is located on the imaginary line VL1 in Figure 2. The imaginary line VL1 is an imaginary line that passes through the center in the front-to-rear direction of the main inner panel portion 51 and is parallel to the up-down direction.

[0039] The first sub-inner panel portion 521 is provided at a position facing, in the thickness direction, a predetermined range including the vertical center of the main inner panel portion 51. The vertical center of the main inner panel portion 51 is located on the imaginary line VL2 in Figure 2. The imaginary line VL2 is an imaginary line that passes through the vertical center of the main inner panel portion 51 and is parallel to the front-to-rear direction.

[0040] The vertical length dimension H of the first sub-inner panel portion 521 521 is the vertical length H of the main inner panel portion 51 51 Preferably, the vertical length H of the first sub-inner panel portion 521 is 40% or more and 95% or less. 521 is the vertical length H of the main inner panel portion 51 51 It is between 60% and 80% of the total.

[0041] The length W of the first sub-inner panel portion 521 in the front-rear direction 521 is the length W of the main inner panel portion 51 in the front-rear direction. 51 Preferably, the length dimension W of the first sub-inner panel portion 521 in the front-rear direction is 20% or more and 95% or less. 521 is the length W of the main inner panel portion 51 in the front-rear direction. 51 It is between 40% and 80% of the total.

[0042] Fig. 4 is an enlarged schematic view of part Y in Fig. 3. The first sub-inner panel portion 521 is fixed to the outer surface of the main inner panel portion 51. In this state, the inner surface of the first sub-inner panel portion 521 is embedded in the outer surface of the main inner panel portion 51.

[0043] In Fig. 4, the portion marked with diagonal grid is an impregnated portion 521a embedded in the outer surface of the main inner panel portion 51 in the first sub-inner panel portion 521. The impregnated portion 521a is impregnated with the resin composition that constitutes the main inner panel portion 51.

[0044] Specifically, the impregnation portion 521a is composed of woven glass fibers and a resin composition impregnated into the spaces between the glass fibers. This configuration contributes to improving the bonding strength between the first sub-inner panel portion 521 and the main inner panel portion 51.

[0045] Thickness dimension T of the impregnation portion 521a 521a is the thickness dimension T of the first sub-inner panel portion 521 521 In this manner, the first sub-inner panel portion 521 is embedded in the main inner panel portion 51 partially in the thickness direction of the first sub-inner panel portion 521.

[0046] The first sub-inner panel portion 521 is integrally joined to the main inner panel portion 51 by insert molding. Note that "integrally" means that two or more members made of different materials are joined together in a state where they cannot be easily separated.

[0047] That is, the inner panel 5 according to this embodiment is manufactured by a manufacturing method including an insert molding process in which a member (e.g., a fiber mat) constituting the sub-inner panel portion 52 is placed in the cavity of a mold, and then a molten or softened resin composition containing a fibrous reinforcing material is injected and filled into the cavity of the mold. The insert molding process causes the resin composition to penetrate into the member constituting the sub-inner panel portion 52, and the main inner panel portion 51 is formed in a state where it is integrally joined to the sub-inner panel portion 52. The door body 3 or the side door 2 is manufactured by assembling the inner panel 5 manufactured in this manner to a member such as the outer panel 4.

[0048] 3, the second sub-inner panel portion 522 is provided at a position facing a door lock portion 72 of the door lock device 7, which will be described later, in the thickness direction of the second sub-inner panel portion 522. In the present embodiment, the second sub-inner panel portion 522 is provided more inward than the door lock portion 72. Specifically, the second sub-inner panel portion 522 is provided at a predetermined position including the rear end portion of the main inner panel portion 51.

[0049] The configuration of the second sub-inner panel portion 522 is substantially the same as the configuration of the first sub-inner panel portion 521. Therefore, for the configuration of the second sub-inner panel portion 522, the above description of the configuration of the first sub-inner panel portion 521 may be appropriately cited.

[0050] The reinforcing portion 6 is a member for reinforcing the door body 3. The reinforcing portion 6 is made of a metal material or a resin material. The reinforcing portion 6 is provided in the accommodation space 31 between the outer panel 4 and the inner panel 5.

[0051] The reinforcing portion 6 has a first reinforcing member 61 , a second reinforcing member 62 , and a third reinforcing member 63 .

[0052] The first reinforcing member 61 is a plate-shaped member and is provided at the front end of the accommodation space 31 so as to fit along the outer surface of the front end of the inner panel 5. The first reinforcing member 61 is a so-called frame reinforcement.

[0053] The second reinforcing member 62 is a plate-shaped member and is provided at the rear end of the accommodation space 31 so as to fit along the outer surface of the rear end of the inner panel 5.

[0054] The second reinforcing member 62 is provided outside the second sub-inner panel portion 522. In other words, the second sub-inner panel portion 522 is provided between the second reinforcing member 62 and the main inner panel portion 51. Such a second reinforcing member 62 covers the door lock portion 72 of the door lock device 7 from the inside. The second reinforcing member 62 is a so-called lock reinforcement.

[0055] The third reinforcing member 63 is a plate-shaped member and is provided in the accommodation space 31 so as to follow the inner surface of the outer panel 4. The third reinforcing member 63 is a so-called tension stiffness reinforcement.

[0056] As shown in FIG. 2, the door lock device 7 includes a handle portion 71, a door lock portion 72, and a cable 73.

[0057] The handle portion 71 has a bracket 711 and a handle 712 .

[0058] The bracket 711 is a plate-like member made of a metal material. The bracket 711 is provided in a portion near the front end of the accommodation space 31 (see FIG. 3). The bracket 711 supports the handle 712. The bracket 711 also supports a transmission mechanism (not shown) that transmits the operation of the handle 712 to the cable 73.

[0059] The handle 712 is supported by the bracket 711 and is provided inside the inner panel 5. The handle 712 is a part that is operated by a user (not shown) of the vehicle 1 when opening or closing the side door 2. When opening the side door 2, the user inputs an operation into the handle 712.

[0060] The door locking portion 72 is a portion that locks the side door 2 to the vehicle body 10 (see FIG. 1) of the moving object 1. The door locking portion 72 is provided in a portion of the accommodation space 31 near the rear end.

[0061] The cable 73 connects the door lock unit 72 and the handle unit 71. The cable 73 transmits an operation input to the handle 712 by a user (not shown) of the moving body 1 to the door lock unit 72. The door lock unit 72 unlocks the side door 2 from the vehicle body 10 based on the operation input from the user transmitted via the cable 73.

[0062] The window frame 8 (see FIG. 2) is provided above the door body 3. A window opening is provided in the area surrounded by the upper end of the door body 3 (in other words, the belt line of the door body 3) and the window frame. The window panel 9 is arranged in the window opening in a state in which it can be raised and lowered. The window frame may be omitted.

[0063] (Actions and Effects of This Embodiment) The side door 2 according to the present embodiment as described above can prevent fragments of the inner panel 5 (specifically, the main inner panel portion 51) from scattering inside the vehicle interior in the event of a side collision. The reason for this will be explained below with reference to Figures 3, 5A, and 5B. Note that the door lock portion 72 shown in Figure 3 is omitted in Figures 5A and 5B.

[0064] In a side collision, for example, another moving object 1a collides with the side door 2 of the moving object 1 from the outside. The side door 2 shown in FIG. 3 is the side door of the right rear seat of the moving object 1. Therefore, in the example shown in FIG. 3, the other moving object 1a collides with the right side surface of the side door 2 from the right side of the moving object 1. Note that the moving object 1a is shown in a reduced size in FIG. 3 for ease of explanation.

[0065] When the moving body 1a collides with the side door 2 of the moving body 1, the moving body 1a pushes the outer panel 4 of the side door 2 inward (upward in FIGS. 3 and 5A). Then, the outer panel 4 is pushed by the moving body 1a and plastically deforms so that the inner side becomes convex as shown in FIG. 5A.

[0066] In this embodiment, the outer panel 4 is made of a polypropylene resin that has relatively high ductility and does not substantially contain fibrous reinforcing material. Therefore, the outer panel 4 undergoes a relatively large amount of plastic deformation before breaking. As a result, the outer panel 4 undergoes plastic deformation without breaking and comes into contact with the inner panel 5 as shown in FIG. 5A.

[0067] When the moving body 1a moves further inward (upward in FIG. 5A) from the state shown in FIG. 5A, the outer panel 4 pushes the inner panel 5 inward. Then, the inner panel 5 undergoes plastic deformation so that the inside becomes convex, as shown in FIG. 5B.

[0068] In this embodiment, the main inner panel portion 51 that forms the framework of the inner panel 5 is made of synthetic resin containing fiber. Therefore, the main inner panel portion 51 has higher rigidity but lower ductility than the outer panel 4. In other words, the main inner panel portion 51 is more susceptible to cracking than the outer panel 4.

[0069] Therefore, the inner panel 5 according to this embodiment has sub-inner panel portions 52 (specifically, a first sub-inner panel portion 521 and a second sub-inner panel portion 522) in addition to a main inner panel portion 51. The first sub-inner panel portion 521 will be described below.

[0070] Such a first sub-inner panel portion 521 has higher ductility than the main inner panel portion 51 .

[0071] Specifically, the first sub-inner panel portion 521 is a fiber mat made of a fiber material. Such a first sub-inner panel portion 521 has higher ductility than the main inner panel portion 51. In other words, the first sub-inner panel portion 521 is more easily stretched than the main inner panel portion 51.

[0072] In particular, in the case of this embodiment, the first sub-inner panel portion 521 is partially embedded in the main inner panel portion 51 in the thickness direction of the first sub-inner panel portion 521. Therefore, in the event of a side collision, the first sub-inner panel portion 521 deforms to follow the deformation (specifically, elastic deformation and plastic deformation) of the main inner panel portion 51.

[0073] When the main inner panel portion 51 is plastically deformed beyond the breaking point and breaks, the first sub-inner panel portion 521 holds the fragments of the main inner panel portion 51. This prevents the fragments of the main inner panel portion 51 that break in a side collision from scattering inside the vehicle interior of the moving object 1. As a result, it is possible to prevent the fragments of the main inner panel portion 51 from injuring a user inside the vehicle interior.

[0074] Furthermore, when the side door 2 opens due to a side collision, fragments of the main inner panel portion 51 are prevented from scattering outside the vehicle. As a result, it is possible to prevent fragments of the main inner panel portion 51 from injuring people outside the vehicle.

[0075] The second sub-inner panel portion 522 can also achieve the above-mentioned functions and effects. In particular, the second sub-inner panel portion 522 is provided at a position facing the door lock portion 72 of the door lock device 7 in the thickness direction. Therefore, the second sub-inner panel portion 522 can prevent the door lock portion 72 from falling off in the event of a side collision.

[0076] [Embodiment 2] Next, a side door 2B and a moving body 1B according to a second embodiment of the present invention will be described with reference to Fig. 6. Fig. 6 is a diagram corresponding to Fig. 4. That is, Fig. 6 is an enlarged schematic diagram of an inner panel 5B of the side door 2B, at a portion corresponding to the Y portion in Fig. 3.

[0077] The inner panel 5B, together with the outer panel 4 (see FIG. 3), constitutes the door body 3B. The inner panel 5B is a member provided inside the outer panel 4. The outer peripheral edge of the inner panel 5B is fixed to the outer peripheral edge 41 of the outer panel 4 by fastening means (not shown) such as fastening parts (e.g., bolts). The configuration of the outer panel 4 is the same as that of the outer panel 4 in the above-described first embodiment.

[0078] The inner panel 5B has a main inner panel portion 51B and a sub-inner panel portion 52B. The inner panel 5B may have components (not shown) other than the main inner panel portion 51B and the sub-inner panel portion 52B.

[0079] The main inner panel portion 51B forms the framework of the inner panel 5B. The configuration of the main inner panel portion 51B is substantially the same as the configuration of the main inner panel portion 51 in the above-described embodiment 1. Therefore, the description of the main inner panel portion 51 in the above-described embodiment 1 may be appropriately cited for the description of the main inner panel portion 51B.

[0080] The sub-inner panel portion 52B is embedded in the main inner panel portion 51B while overlapping the main inner panel portion 51B in the thickness direction. The sub-inner panel portion 52B has higher ductility than the main inner panel portion 51B. The material constituting the sub-inner panel portion 52B is the same as the material constituting the sub-inner panel portion 52 in the first embodiment described above.

[0081] In the present embodiment, the sub-inner panel portion 52B also has a first sub-inner panel portion 521B and a second sub-inner panel portion 522B. The configuration shown in Fig. 6 is common to the first sub-inner panel portion 521B and the second sub-inner panel portion 522B.

[0082] Therefore, the first sub-inner panel portion 521B and the second sub-inner panel portion 522B are shown in Fig. 6. Hereinafter, the first sub-inner panel portion 521B and the second sub-inner panel portion 522B will be collectively referred to as the sub-inner panel portion 52B.

[0083] The position of the sub-inner panel portion 52B (i.e., the first sub-inner panel portion 521B and the second sub-inner panel portion 522B) in the side door 2B is the same as the position of the sub-inner panel portion 52 (i.e., the first sub-inner panel portion 521 and the second sub-inner panel portion 522) in the side door 2 in the above-mentioned embodiment 1.

[0084] As shown in FIG. 6, the sub-inner panel portion 52B is entirely embedded in the main inner panel portion 51B in the thickness direction of the sub-inner panel portion 52B.

[0085] In FIG. 6, the diagonally gridded portions are impregnated portions 521b and 521c in the sub-inner panel portion 52B that are impregnated with the resin composition that constitutes the main inner panel portion 51.

[0086] The impregnated portions 521b and 521c are each composed of woven glass fibers and a resin composition impregnated into the spaces between the glass fibers. This configuration contributes to improving the bonding strength between the sub-inner panel portion 52B (i.e., the first sub-inner panel portion 521B and the second sub-inner panel portion 522B) and the main inner panel portion 51.

[0087] Thickness dimension T of the impregnated portions 521b and 521c 521b、521c is the thickness dimension T of the sub-inner panel portion 52B 52B It is between 20% and 30% of the total.

[0088] The sub-inner panel portion 52B is entirely embedded in the main inner panel portion 51B in the thickness direction of the sub-inner panel portion 52B by insert molding.

[0089] The side door 2B according to the present embodiment as described above can prevent fragments of the inner panel 5B (specifically, the main inner panel portion 51B) from scattering inside the vehicle interior in the event of a side collision, similar to the side door 2 according to the first embodiment. The reason for this is as described above.

[0090] In the case of the side door 2B according to this embodiment, the sub-inner panel portion 52B is entirely embedded in the main inner panel portion 51B in the thickness direction of the sub-inner panel portion 52B. Therefore, the surfaces of the portion of the inner panel 5B where the sub-inner panel portion 52B is provided (i.e., the inner and outer surfaces) are the surfaces of the main inner panel portion 51B (i.e., the inner and outer surfaces).

[0091] The sub-inner panel portion 52B made of a fiber mat is not exposed on the surface of the inner panel 5B, so that the side door 2B according to this embodiment can improve the design of the portion of the inner panel 5B where the sub-inner panel portion 52B is provided.

[0092] The configuration of this embodiment can be applied to a portion of the side door 2B that can be seen by a user from the outside (for example, a portion corresponding to the door lock portion 72 shown in FIG. 2), thereby improving the design of the side door 2B.

[0093] Specifically, the configuration of the sub-inner panel portion 52B according to this embodiment may be applied to the main inner panel portion 51B at a position corresponding to the second sub-inner panel portion 522 (see FIG. 2) in the first embodiment described above.

[0094] In this case, the configuration of the sub-inner panel portion 52B according to this embodiment may be applied to the main inner panel portion 51B at a position corresponding to the first sub-inner panel portion 521 (see FIG. 2) in the first embodiment described above.

[0095] However, in the main inner panel portion 51B, a position corresponding to the first sub-inner panel portion 521 in the above-described embodiment 1 is covered from the inside by a so-called door trim. Therefore, in the main inner panel portion 51B, a position corresponding to the first sub-inner panel portion 521 in the above-described embodiment 1 is a portion that cannot be seen by a user from the outside.

[0096] Therefore, in the main inner panel portion 51B, the configuration of the first sub-inner panel portion 521 in the first embodiment may be applied to a position corresponding to the first sub-inner panel portion 521 in the first embodiment.

[0097] Otherwise, the configuration, functions, and effects of the side door 2B according to this embodiment are the same as those of the side door 2 according to the above-described embodiment.

[0098] [Embodiment 3] Next, a side door 2C and a moving body 1C according to a third embodiment of the present invention will be described with reference to Fig. 7 and Fig. 8. Fig. 7 is a view corresponding to Fig. 2. That is, Fig. 7 is a side view of the side door 2C. Fig. 8 is a view corresponding to Fig. 3. Fig. 8 is a cross-sectional view of the side door 2C taken along line X2-X2 in Fig. 7.

[0099] The side door 2C has a door main body 3C, a window frame 8 (see FIG. 2), and a window panel 9 (see FIG. 2). The configurations of the window frame 8 and the window panel 9 are similar to the configurations of the window frame 8 and the window panel 9 in the above-described first embodiment. Therefore, the description of the window frame 8 and the window panel 9 in the above-described first embodiment may be used as appropriate for the description of the window frame 8 and the window panel 9.

[0100] The door main body 3C has an outer panel 4, an inner panel 5C, a reinforcing portion 6, and a door locking device 7. The configurations of the outer panel 4, the reinforcing portion 6, and the door locking device 7 are similar to the configurations of the outer panel 4, the reinforcing portion 6, and the door locking device 7 in the above-described first embodiment. Therefore, the description of the outer panel 4, the reinforcing portion 6, and the door locking device 7 in the above-described first embodiment may be appropriately used for the description of the outer panel 4, the reinforcing portion 6, and the door locking device 7.

[0101] The inner panel 5C is a member provided inside the outer panel 4. The outer peripheral edge portion of the inner panel 5C (specifically, the outer peripheral edge portion 511 of the main inner panel portion 51 described below) is fixed to the outer peripheral edge portion 41 of the outer panel 4 by fixing means (not shown) such as fastening parts (for example, bolts).

[0102] In the thickness direction (in other words, the Y direction), an accommodation space 31 is provided between the inner panel 5C and the outer panel 4. The accommodation space 31 is provided with door devices such as a lifting mechanism (not shown) that lifts and lowers the window panel 9 (see FIG. 2) and a door lock unit 72 of the door lock device 7 (see FIG. 2) described below.

[0103] The inner panel 5C has a main inner panel portion 51 and a sub-inner panel portion 52C. The configuration of the main inner panel portion 51 is similar to the configuration of the main inner panel portion 51 in the above-described embodiment 1. Therefore, the description of the main inner panel portion 51 in the above-described embodiment 1 may be appropriately used for the description of the main inner panel portion 51.

[0104] The sub-inner panel portion 52C is provided inside the main inner panel portion 51 so as to overlap the main inner panel portion 51 in the thickness direction. The sub-inner panel portion 52C has higher ductility than the main inner panel portion 51.

[0105] In this embodiment, the sub-inner panel portion 52C is a fiber mat made of a fiber material. A fiber mat is a cloth-like member formed by intertwining fine fiber material. Specifically, the sub-inner panel portion 52C is a glass fiber mat. A glass fiber mat is made by weaving glass fibers that have been processed (e.g., bulky processed) to impart bulkiness and elasticity into a mat shape. Examples of glass fiber mats include chopped strand mats, surface mats, cross mats, and roving cloths.

[0106] The sub-inner panel portion 52C is provided in substantially the same position as the first sub-inner panel portion 521 (see FIGS. 2 and 3) in the above-described embodiment 1. Specifically, the sub-inner panel portion 52C is provided in a position facing, in the thickness direction, a predetermined range including the center portion in the front-rear direction of the main inner panel portion 51.

[0107] The center of the main inner panel portion 51 in the front-rear direction is located on an imaginary line VL1 in Fig. 2C. The imaginary line VL1 passes through the center of the main inner panel portion 51 in the front-rear direction and is parallel to the up-down direction.

[0108] The sub-inner panel portion 52C is provided at a position facing, in the thickness direction, a predetermined range including the vertical center of the main inner panel portion 51. The vertical center of the main inner panel portion 51 is located on the imaginary line VL2 in Fig. 2C. The imaginary line VL2 is an imaginary line that passes through the vertical center of the main inner panel portion 51 and is parallel to the front-to-rear direction.

[0109] The vertical length dimension H of the sub-inner panel portion 52C 52C is the vertical length H of the main inner panel portion 51 51 Preferably, the vertical length H of the sub-inner panel portion 52C is 40% or more and 95% or less. 52C is the vertical length H of the main inner panel portion 51 51 It is between 60% and 80% of the total.

[0110] The length dimension W of the sub-inner panel portion 52C in the front-rear direction 52C is the length W of the main inner panel portion 51 in the front-rear direction. 51 Preferably, the longitudinal length W of the sub-inner panel portion 52C in the front-rear direction is 20% or more and 95% or less. 521 is the length W of the main inner panel portion 51 in the front-rear direction. 51 It is between 40% and 80% of the total.

[0111] The sub-inner panel portion 52C is fixed to the inner surface of the main inner panel portion 51 (that is, the side surface facing the interior of the vehicle).

[0112] Specifically, the sub-inner panel portion 52C has a collecting portion 523 and a fixing portion 524.

[0113] The collection portion 523 is provided inside the main inner panel portion 51 and faces the inner surface of the main inner panel portion 51 in the thickness direction (in other words, the Y direction) with a gap therebetween. A space 523a is provided between the outer surface of the collection portion 523 and the inner surface of the main inner panel portion 51.

[0114] 7, the fixing portion 524 is a portion that forms the outer peripheral edge of the sub-inner panel portion 52C. In other words, the fixing portion 524 is provided so as to surround the outer peripheral edge of the collection portion 523. Such fixing portion 524 is a portion that fixes the sub-inner panel portion 52C to the inner surface of the main inner panel portion 51.

[0115] In this embodiment, the fixing portion 524 surrounds the entire outer periphery of the collecting portion 523. However, the fixing portion 524 may surround only a part of the outer periphery of the collecting portion 523. In this case, it is preferable that the fixing portion 524 surrounds the lower end, the front end, and the rear end of the outer periphery of the collecting portion 523.

[0116] The fixing portion 524 is impregnated with the resin material that constitutes the main inner panel portion 51. Specifically, the outer surface of the fixing portion 524 is embedded in the main inner panel portion 51.

[0117] Fig. 9 is a cross-sectional view taken along the line X3-X3 in Fig. 7. That is, Fig. 9 is a cross-sectional view of the fixing portion 524. In Fig. 9, the portion marked with diagonal grid is the impregnated portion 521d embedded in the inner surface of the main inner panel portion 51 in the fixing portion 524. The impregnated portion 521d is impregnated with the resin composition that constitutes the main inner panel portion 51.

[0118] Specifically, the impregnation portion 521d is composed of woven glass fibers and a resin composition impregnated into the spaces between the glass fibers. This configuration contributes to improving the bonding strength between the sub-inner panel portion 52C and the main inner panel portion 51.

[0119] Thickness dimension T of the impregnated portion 521d 521d is the thickness dimension T of the fixing part 524 524 In this manner, the fixing portion 524 is partially embedded in the main inner panel portion 51.

[0120] Such a sub-inner panel portion 52C is integrally joined to the main inner panel portion 51 by insert molding. During the insert molding, a mold such as a nest is placed between the collecting portion 523 and the main inner panel portion 51 so that the resin composition constituting the main inner panel portion 51 does not penetrate into the collecting portion 523 of the sub-inner panel portion 52C.

[0121] (Actions and Effects of This Embodiment) The side door 2C according to the present embodiment as described above can prevent fragments of the inner panel 5C (specifically, the main inner panel portion 51) from scattering inside the vehicle interior in the event of a side collision. The reason for this will be explained below with reference to Fig. 8. In the following explanation, Fig. 5A will also be referred to as appropriate.

[0122] In a side collision, for example, another moving body 1a collides with the side door 2C of the moving body 1C from the outside. The side door 2C shown in FIG. 8 is the side door of the right rear seat of the moving body 1C. Therefore, in the example shown in FIG. 8, the other moving body 1a collides with the right side of the moving body 1C against the side door 2C from the right side of the moving body 1C. Note that the moving body 1a is shown in a reduced size in FIG. 8 for ease of explanation.

[0123] When the moving body 1a collides with the side door 2C of the moving body 1C, the outer panel 4 of the side door 2C is pushed inward (upward in FIG. 8) by the moving body 1a. Then, the outer panel 4 is pushed by the moving body 1a and plastically deformed so that the inner side becomes convex (see FIG. 5A).

[0124] In this embodiment, the outer panel 4 is made of a polypropylene resin composition that is relatively ductile and substantially does not contain fibrous reinforcing material. Therefore, the outer panel 4 undergoes a relatively large amount of plastic deformation before breaking. As a result, the outer panel 4 undergoes plastic deformation without breaking and comes into contact with the inner panel 5C (see FIG. 5A).

[0125] When the moving body 1a moves further inward from this state, the outer panel 4 pushes the inner panel 5C inward, and the inner panel 5C undergoes plastic deformation so that the inside becomes convex.

[0126] In this embodiment, the main inner panel portion 51 that forms the framework of the inner panel 5C is made of a resin composition containing fiber. Therefore, the main inner panel portion 51 has higher rigidity but lower ductility than the outer panel 4. In other words, the main inner panel portion 51 is more susceptible to cracking than the outer panel 4.

[0127] Therefore, the inner panel 5C according to this embodiment has a sub-inner panel portion 52C in addition to the main inner panel portion 51. In particular, the sub-inner panel portion 52C according to this embodiment has a collection portion 523.

[0128] Even if the main inner panel portion 51 is plastically deformed beyond the breaking point and broken during a side collision, the collection portion 523 collects the fragments of the main inner panel portion 51. This prevents the fragments of the main inner panel portion 51 broken by the side collision from scattering inside the vehicle interior of the moving body 1C. As a result, it is possible to prevent the fragments of the main inner panel portion 51 from injuring a user inside the vehicle interior.

[0129] Furthermore, when the side door 2C opens due to a side collision, fragments of the main inner panel portion 51 are prevented from scattering outside the vehicle. As a result, it is possible to prevent fragments of the main inner panel portion 51 from injuring people outside the vehicle.

[0130] The configuration according to this embodiment (i.e., sub-inner panel portion 52C) may be employed simultaneously with the configuration according to the above-described first embodiment (i.e., sub-inner panel portion 52). The configuration according to this embodiment (i.e., sub-inner panel portion 52C) may be employed simultaneously with the configuration according to the above-described second embodiment (i.e., sub-inner panel portion 52B). Furthermore, the configuration according to this embodiment (i.e., sub-inner panel portion 52C) may be employed simultaneously with the configuration according to the below-described fourth embodiment (i.e., sub-inner panel portion 52D).

[0131] [Embodiment 4] Next, a side door 2D and a moving body 1D according to a fourth embodiment of the present invention will be described with reference to Fig. 10. Fig. 10 is a view corresponding to Fig. 3. That is, Fig. 10 is a cross-sectional view of the side door 2D taken along line X1-X1 in Fig. 2.

[0132] The side door 2D has a door main body 3D, a window frame 8 (see FIG. 2), and a window panel 9 (see FIG. 2). The configurations of the window frame 8 and the window panel 9 are similar to the configurations of the window frame 8 and the window panel 9 in the above-described first embodiment. Therefore, the description of the window frame 8 and the window panel 9 in the above-described first embodiment may be used as appropriate for the description of the window frame 8 and the window panel 9.

[0133] The door main body 3D has an outer panel 4, an inner panel 5D, a reinforcing portion 6, and a door locking device 7. The configurations of the outer panel 4, the reinforcing portion 6, and the door locking device 7 are similar to the configurations of the outer panel 4, the reinforcing portion 6, and the door locking device 7 in the above-described embodiment 1. Therefore, the description of the outer panel 4, the reinforcing portion 6, and the door locking device 7 in the above-described embodiment 1 may be appropriately used for the description of the outer panel 4, the reinforcing portion 6, and the door locking device 7.

[0134] The inner panel 5D is a member provided inside the outer panel 4. The outer peripheral edge portion of the inner panel 5D (specifically, the outer peripheral edge portion 511 of the main inner panel portion 51) is fixed to the outer peripheral edge portion 41 of the outer panel 4 by fixing means (not shown) such as fastening parts (for example, bolts).

[0135] In the thickness direction (in other words, the Y direction), an accommodation space 31 is provided between the inner panel 5D and the outer panel 4. The accommodation space 31 is provided with door devices such as a lifting mechanism (not shown) that lifts and lowers the window panel 9 (see FIG. 2) and a door lock unit 72 of the door lock device 7 (see FIG. 2) described below.

[0136] The inner panel 5D has a main inner panel portion 51 and a sub-inner panel portion 52D. The configuration of the main inner panel portion 51 is substantially the same as the configuration of the main inner panel portion 51 in the first embodiment described above.

[0137] Therefore, the description of the main inner panel portion 51 in the above-described first embodiment may be used as appropriate for the description of the main inner panel portion 51. Note that the thickness dimension of the main inner panel portion 51 in this embodiment is smaller than the thickness dimension of the main inner panel portion 51 in the above-described first embodiment.

[0138] The sub-inner panel portion 52D is provided inside the main inner panel portion 51, overlapping the main inner panel portion 51 in the thickness direction. The sub-inner panel portion 52D is made of a material that is more ductile than the resin composition that makes up the main inner panel portion 51.

[0139] In this embodiment, the sub-inner panel portion 52D is a plate-shaped member made of a resin composition. Examples of the resin composition that makes up the sub-inner panel portion 52D include a polypropylene resin composition that is substantially free of fibrous reinforcing materials.

[0140] The resin composition constituting the sub-inner panel portion 52D is not limited to a polypropylene resin composition substantially free of fibrous reinforcing materials. The resin composition constituting the sub-inner panel portion 52D may be another thermoplastic resin composition substantially free of fibrous reinforcing materials, or may be a thermoplastic elastomer. Examples of the elastomer include styrene-based, olefin-based, vinyl chloride-based, urethane-based, ester-based, and amide-based elastomers.

[0141] Furthermore, the resin constituting the sub-inner panel portion 52D may be any of various resin compositions that are more ductile than the resin composition containing fibrous reinforcing material that constitutes the main inner panel portion 51 (specifically, a polypropylene resin composition containing glass fiber).

[0142] The sub-inner panel portion 52D is fixed to the inner surface of the main inner panel portion 51. The sub-inner panel portion 52D covers the entire inner surface of the main inner panel portion 51 from the inside.

[0143] Such a sub-inner panel portion 52D is integrally formed on the inner surface of the main inner panel portion 51 by injection molding.

[0144] The sub-inner panel portion 52D may cover, from the inside, a portion of the inner surface of the main inner panel portion 51. In this case, the sub-inner panel portion 52D may be provided on the inner surface of the main inner panel portion 51 at a position corresponding to the sub-inner panel portion 52 (see FIG. 2) in the first embodiment described above (in other words, at a position overlapping in the thickness direction).

[0145] (Actions and Effects of This Embodiment) The side door 2D according to the present embodiment as described above can prevent fragments of the inner panel 5D (specifically, the main inner panel portion 51) from scattering inside the vehicle interior in the event of a side collision. The reason for this will be explained below with reference to Fig. 10. In the following explanation, Fig. 5A will also be referred to as appropriate.

[0146] In a side collision, for example, another moving object 1a collides with the side door 2D of the moving object 1D from the outside. The side door 2D shown in FIG. 10 is the side door of the right rear seat of the moving object 1D. Therefore, in the example shown in FIG. 10, the other moving object 1a collides with the right side surface of the moving object 1D against the side door 2D from the right side of the moving object 1D. Note that the moving object 1a is shown in a reduced size in FIG. 10 for ease of explanation.

[0147] When the moving body 1a collides with the side door 2D of the moving body 1D, the outer panel 4 of the side door 2D is pushed inward (upward in FIG. 10) by the moving body 1a. Then, the outer panel 4 is pushed by the moving body 1a and plastically deformed so that the inner side becomes convex (see FIG. 5A).

[0148] In this embodiment, the outer panel 4 is made of a polypropylene resin composition that is relatively ductile and does not contain fibrous reinforcing material. Therefore, the outer panel 4 undergoes a relatively large amount of plastic deformation before breaking. As a result, the outer panel 4 undergoes plastic deformation without breaking and comes into contact with the inner panel 5D (see FIG. 5A).

[0149] When the moving body 1a moves further inward from this state, the outer panel 4 pushes the inner panel 5D inward, and the inner panel 5D is plastically deformed so that its inner side becomes convex.

[0150] In this embodiment, the main inner panel portion 51 that forms the framework of the inner panel 5D is made of a resin composition containing a fibrous reinforcing material. Therefore, the main inner panel portion 51 has higher rigidity but lower ductility than the outer panel 4. In other words, the main inner panel portion 51 is more susceptible to cracking than the outer panel 4.

[0151] Therefore, the inner panel 5D according to this embodiment has a main inner panel portion 51 and a sub-inner panel portion 52D.

[0152] The sub-inner panel portion 52D is made of a material that is more ductile than the resin composition that makes up the main inner panel portion 51.

[0153] Specifically, the sub-inner panel portion 52D is made of a polypropylene resin composition that is substantially free of fibrous reinforcing material. Such a sub-inner panel portion 52D has higher ductility than the main inner panel portion 51. In other words, the sub-inner panel portion 52D is more easily stretched than the main inner panel portion 51.

[0154] In particular, in the present embodiment, the sub-inner panel portion 52D entirely covers the inner surface of the main inner panel portion 51. Therefore, in the event of a side collision, the sub-inner panel portion 52D deforms to follow the deformation (specifically, elastic deformation and plastic deformation) of the main inner panel portion 51.

[0155] When the main inner panel portion 51 is plastically deformed beyond the breaking point and breaks, the sub-inner panel portion 52D does not break and holds the fragments of the main inner panel portion 51. This prevents the fragments of the main inner panel portion 51 that break in a side collision from scattering inside the vehicle interior 1. As a result, it is possible to prevent the fragments of the main inner panel portion 51 from injuring a user inside the vehicle interior.

[0156] Furthermore, when the side door 2 opens due to a side collision, fragments of the main inner panel portion 51 are prevented from scattering outside the vehicle. As a result, it is possible to prevent fragments of the main inner panel portion 51 from injuring people outside the vehicle.

[0157] The configuration according to this embodiment (i.e., the sub-inner panel portion 52D) may be employed simultaneously with the configuration according to the above-described first embodiment (i.e., the sub-inner panel portion 52). The configuration according to this embodiment (i.e., the sub-inner panel portion 52D) may be employed simultaneously with the configuration according to the above-described second embodiment (i.e., the sub-inner panel portion 52B). Furthermore, the configuration according to this embodiment (i.e., the sub-inner panel portion 52D) may be employed simultaneously with the configuration according to the above-described third embodiment (i.e., the sub-inner panel portion 52C). [Explanation of symbols]

[0158] 1, 1B, 1C, 1D, 1a Mobile 10 Vehicle body 2, 2B, 2C, 2D side doors 3, 3B, 3C, 3D door body 4 Outer panel 5, 5B, 5C, 5D inner panels 51, 51B Main inner panel 52, 52B, 52C, 52D Sub-inner panel

Claims

1. A side door provided on a side surface of a moving body, An outer panel, an inner panel provided on a side of the outer panel positioned inside the moving body; A side door comprising: The inner panel is a main inner panel portion made of a resin composition containing a fibrous reinforcing material; The main inner panel portion has a sub-inner panel portion that overlaps the main inner panel portion in a thickness direction and has higher ductility than the main inner panel portion. Side door.

2. the sub-inner panel portion is a fiber mat made of a fiber material, At least a portion of the sub-inner panel portion is impregnated with the resin material constituting the main inner panel portion. The side door according to claim 1.

3. The sub-inner panel portion is partially embedded in the main inner panel portion in the thickness direction of the sub-inner panel portion. The side door according to claim 2.

4. The sub-inner panel portion is entirely embedded in the main inner panel portion in the thickness direction of the sub-inner panel portion. The side door according to claim 2.

5. the sub-inner panel portion includes a predetermined range including a central portion of the main inner panel portion in the front-rear direction of the movable body body, and a first sub-inner panel portion facing the main inner panel portion in the thickness direction; The side door according to claim 2.

6. a door lock portion provided at a rear end portion of the side door in the front-rear direction of the moving body, The sub-inner panel portion includes a second sub-inner panel portion facing the door lock portion in a thickness direction of the sub-inner panel portion. The side door according to claim 5.

7. the first sub-inner panel portion is partially embedded in the main inner panel portion in a thickness direction of the first sub-inner panel portion, The second sub-inner panel portion is entirely embedded in the main inner panel portion in the thickness direction of the second sub-inner panel portion. The side door according to claim 6.

8. The sub-inner panel portion is a collecting section that is provided inside the main inner panel section of the movable body body and faces an inner surface of the main inner panel section with a gap therebetween; a fixing portion fixed to an inner surface of the main inner panel portion so as to surround the collection portion; having The side door according to claim 1.

9. the sub-inner panel portion is a fiber mat made of a fiber material, The fixing portion is impregnated with the resin material constituting the main inner panel portion. The side door according to claim 8.

10. The sub-inner panel portion is a plate-like member provided on the inner surface of the main inner panel portion and integrally molded with the main inner panel portion. The side door according to claim 1.

11. The sub-inner panel portion is made of a thermoplastic resin composition or a thermoplastic elastomer that does not substantially contain a fibrous reinforcing material. The side door according to claim 10.

12. A side door according to any one of claims 1 to 11; A moving body; Mobile object.

13. A method for manufacturing a side door having an outer panel and an inner panel, an insert molding step of molding the inner panel by filling a resin composition containing a fibrous reinforcing material into a mold in a state in which a cloth-like member is placed in the mold, A method for manufacturing a side door.

Citation Information

Patent Citations

  • Sliding door module

    WO2016084808A1