JP7443945B2 - vehicle side door structure - Google Patents

Description

The present invention relates to a side door structure for a vehicle, which includes an inner member connected to an outer member and having a front vertical wall portion and a rear vertical wall portion in the longitudinal direction of the vehicle body.

Conventionally, the door is composed of an outer panel that forms the design surface, an inner panel that is connected to the outer periphery of the outer panel by hemming, and door parts (accessories) such as a door glass unit that are attached to the inner panel. Side door structures are known.
Furthermore, various techniques have been proposed for improving workability such as assembly and adjustment by modularizing side doors for each function.

The door structure and its assembly method disclosed in Patent Document 1 includes a door main module including a main frame module and a sash module, an outer panel, and an inner trim (door trim), and the main frame module has a hinge made of sheet metal. It is formed from a panel, a sheet metal latch panel, and a pair of upper and lower impact bars that connect these horizontally. It is fastened to the frame module via a plurality of removable rivets.

In recent years, with the aim of improving fuel efficiency by reducing the weight of vehicles, there has been a trend to form outer panels and inner panels with light alloy materials such as aluminum alloys (hereinafter abbreviated as Al alloys) and high-strength resin materials such as CFRP.
In terms of material properties, castings and high-strength resin materials have high rigidity and are superior in formability compared to wrought materials. Therefore, the inner member of the inner panel side, which has a three-dimensionally complex shape, is usually made of Al alloy. The outer member on the outer panel side, which has a simple shape, is formed from a wrought Al alloy material.

Japanese Patent Application Publication No. 10-100681

When the inner member is molded from Al alloy casting or high-strength resin material and the outer member is molded from Al alloy wrought material, the inner member molded from Al alloy casting or high-strength resin material must have a thin wall structure of 1 mm or less. is not easy.
When an outer member is hemmed to a thick-walled inner member having a thickness of 1 mm or more, it is assumed that wrinkles will occur in the folded portion of the outer member, which may lead to a deterioration in appearance.
In addition, since the thickness of the joint between the outer and inner members increases, it is necessary to secure space to avoid interference between the connection part around the hinge and the vehicle body, which may limit the opening and closing performance of the side door. There are concerns.

As in the door structure and its assembly method disclosed in Patent Document 1, it is conceivable to form the outer peripheral edge of the outer member into a hook shape and fasten the cast inner member to the hook-shaped edge via a fastening member.
However, when a hook-shaped edge is formed by machining on the outer member constituting the design surface portion, wrinkles occur in the outer member due to excess thickness.
That is, it is not easy to simultaneously reduce the weight of the side door and improve its appearance.

An object of the present invention is to provide a side door structure for a vehicle that can reduce the weight of the side door and improve its appearance.

A side door structure for a vehicle according to claim 1 includes an outer member and an inner member connected to the outer member and having a front vertical wall portion and a rear vertical wall portion in the longitudinal direction of the vehicle body. , the outer member includes an outer panel and an annular frame member that is thinner than the inner member and connected to the outer peripheral edge of the outer panel by hemming, and the inner member is connected to the front vertical wall. and the rear vertical wall are made of cast molding or a high-strength resin material, and are fixed to the frame member via a plurality of removable fastening members , and the inner member seals the space between the inner member and the vehicle body. The first sealing member is characterized in that the first sealing member is provided so as to cover the plurality of fastening members at least in part of the outer peripheral edge of the inner member .

In this vehicle's side door structure, the outer periphery of the outer panel is connected to the annular frame member, which is thinner than the inner member, by hemming, which causes wrinkles and distortions in the outer panel, which forms the design surface. It is possible to connect the outer panel and the frame member without causing any damage, and the appearance can be improved. In the inner member, the front vertical wall portion and the rear vertical wall portion are formed by casting or made of a high-strength resin material, so lightweight materials can be applied, and the side door can be made lighter. . In addition, since the frame member of the outer member is fixed to the inner member via a plurality of removable fastening members, it is possible to ensure ease of attachment and detachment of the outer member and inner member, and ease of assembly and repair. For example, if a large scratch or dent occurs on the outer panel, there is no need to replace the entire door, and only the outer member can be replaced.

Further, since the inner member has a first seal member, and the first seal member is provided so as to cover the plurality of fastening members at least in a part of the outer peripheral edge of the inner member, It is possible to avoid visual recognition of the fastening member, and it is possible to further improve the appearance.

The invention according to claim 2 is the invention according to claim 1 , wherein the front vertical wall portion and the rear vertical wall portion are bent inward in the vehicle width direction at an outer peripheral edge portion and can be engaged with the first seal member. It is characterized by having a bent part. According to this configuration, the mounting strength of the first seal member can be increased.

The invention according to claim 3 is the invention according to claim 1 or 2 , wherein the first sealing member is a gap that covers a gap formed between the outer peripheral edges of the front vertical wall portion and the rear vertical wall portion and the frame member. It is characterized by having a buried part. According to this configuration, the gap between the connecting portion of the outer member and the inner member can be covered using the first sealing member, and good appearance and sealability can be ensured.

The invention according to claim 4 is the invention according to any one of claims 1 to 3 , wherein the inner member includes a second seal member on the inner peripheral side of the first seal member for sealing between the vehicle body and the vehicle body. The first seal member is characterized in that internal pressure against the vehicle body is set lower than that of the second seal member . According to this configuration, when the side door is closed, the repulsive force of the first seal member is suppressed, thereby ensuring sealing performance and improving the closing operability.

According to the vehicle side door structure of the present invention, by transferring the connection portion by hemming to the outer member, it is possible to reduce the weight of the side door and improve the appearance.

1 is a right side view of a vehicle equipped with a side door structure according to Example 1. FIG. It is an exploded perspective view of a side door. FIG. 3 is an exploded perspective view of the outer member. It is an exploded perspective view of a frame member. FIG. 3 is an inner side view of the side door. FIG. 3 is an outer side view of the side door with an outer panel and an inner panel omitted. FIG. 3 is an inner side view of the side door with an outer panel, an inner panel, and a covering member omitted. FIG. 7 is a diagram with door components omitted from FIG. 6; FIG. 3 is an outer side view of the front vertical wall portion. FIG. 3 is an outer side view of the rear vertical wall portion. 6 is a sectional view taken along the line XI-XI in FIG. 5. FIG. 6 is a sectional view taken along the line XII-XII in FIG. 5. FIG. 7 is a sectional view taken along the line XIII-XIII in FIG. 6. FIG. 7 is a sectional view taken along the line XIV-XIV in FIG. 6. FIG. 6 is a sectional view taken along the line XV-XV in FIG. 5. FIG. 6 is a sectional view taken along the line XVI-XVI in FIG. 5. FIG. It is a perspective view of a hinge reinforcement member. It is a perspective view of a latch reinforcement member.

EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing this invention is demonstrated based on drawing. The following description of preferred embodiments is merely exemplary in nature and is not intended to limit the invention, its applications, or its uses.

Embodiment 1 of the present invention will be described below based on FIGS. 1 to 18.
As shown in FIG. 1, the vehicle V according to the first embodiment is a two-door hardtop passenger car, and includes a pair of left and right sashless type side doors 1. Since this vehicle V has a bilaterally symmetrical structure, the right side portion will mainly be described below. Further, in the drawings, the explanation will be made assuming that the direction of arrow F indicates the front, the direction of arrow OUT indicates outward in the vehicle width direction, and the direction of arrow U indicates upward.

The vehicle V includes a side sill 2 extending in the longitudinal direction, a hinge pillar 3 erected upward from the side sill 2, a center pillar 4 erected upward from the side sill 2 behind the hinge pillar 3, and an upper end of the hinge pillar 3. The vehicle has a front pillar 5 extending upwardly and rearward from the center pillar 5, and a roof side rail 6 connecting the front pillar 5 and the upper end of the center pillar 4. The side door 1 is configured to be able to freely open and close a door opening formed by these vehicle body side frame members 2 to 6.

As shown in FIG. 2, the side door 1 includes an outer member 10 constituting an outer portion in the vehicle width direction, an inner member 30 constituting an inner portion in the vehicle width direction, and an impact made of aluminum alloy (hereinafter abbreviated as Al alloy). The main components are functional door parts (accessories) including a bar 46, a door glass unit 60, etc. The outer member 10 and the inner member 30 are basically made of a light alloy material, for example, an Al alloy material.

First, the outer member 10 will be explained.
As shown in FIG. 3, the outer member 10 includes an outer panel 11 that forms a curved design surface and is formed into a substantially rectangular shape when viewed from the side, and is connected to the outer peripheral edge of the outer panel 11 by hemming and has a side surface. It includes a frame member 12 and the like that is approximately rectangular in shape when viewed.
The outer panel 11 and the frame member 12 are each press-molded from a panel material made of an Al alloy material, for example, a stretched material having a thickness of 0.8 mm.

The frame member 12 includes a front frame portion 21 extending in the vertical direction, a rear frame portion 22 extending in the vertical direction behind the front frame portion 21, and upper ends of the front frame portion 21 and the rear frame portion 22 in the front-rear direction. The lower frame part 24 connects the lower ends of the front frame part 21 and the rear frame part 22 in the front-rear direction. Each of the frame parts 21 to 24 includes hem parts 21a to 24a sandwiched between the outer peripheral edge of the outer panel 11 by hemming, and connection wall parts 21b to 24b fastened and fixed to the inner member 30 via a fastening member b1. They each have A belt line seal outer member (not shown) is attached to the connecting wall portion 23b.

As shown in FIGS. 13 and 15, the connecting wall portion 21b is bent inward in the vehicle width direction from the rear (inner peripheral side) portion of the hem portion 21a, and is a frame that forms a surface substantially orthogonal to the vehicle width direction. A fastening portion 21c is formed. As shown in FIGS. 11, 12, 14, and 16, the connecting wall portion 22b is bent inward in the vehicle width direction from the front side (inner peripheral side) of the hem portion 22a, and is substantially orthogonal to the vehicle width direction. A frame fastening portion 22c forming a surface is formed. Similarly, frame fastening portions 23c and 24c forming surfaces substantially orthogonal to the vehicle width direction are formed on the connection wall portions 23b and 24b.

Next, the inner member 30 will be explained.
As shown in FIG. 2, the inner member 30 includes an inner panel 31 that forms a side wall of the vehicle interior and is formed into a substantially rectangular shape when viewed from the side, and supports the inner panel 31 and various functional door parts. The side door 1 includes a substantially rectangular annular frame member 32 that constitutes a skeleton portion of the side door 1 . The inner panel 31 is a panel material made of an Al alloy material, for example, a stretched material having a thickness of 0.8 mm is press-molded.

As shown in FIG. 4, the frame member 32 includes a front vertical wall portion 41 that extends in the vertical direction, a rear vertical wall portion 42 that extends in the vertical direction behind the front vertical wall portion 41, and a front vertical wall portion 41 that extends in the vertical direction. A belt line rain outer member 43 connects the upper ends of the front vertical wall 41 and the rear vertical wall 42, and connects the upper ends of the front vertical wall 41 and the rear vertical wall 42, and connects the belt line rain outer member 43 to the rear vertical wall 42. It is comprised of a belt line rain inner member 44 spaced apart from each other on the inside in the width direction, and a lower wall part 45 that connects the lower ends of the front vertical wall part 41 and the rear vertical wall part 42 via a fastening member.

The front vertical wall portion 41 and the rear vertical wall portion 42 are formed by casting using an Al alloy material, and are each made of an Al alloy casting having a thickness of 1.5 to 2.0 mm, for example. The belt line rain outer member 43 and the belt line rain inner member 44 are formed by extrusion molding using an Al alloy material. The lower wall portion 45 is formed by press-molding a panel material of an Al alloy material, for example, a stretched material having a thickness of 0.8 mm.

As shown in FIGS. 7 to 9, FIG. 13, and FIG. 15, the front vertical wall portion 41 is connected to a front wall portion 41a perpendicular to the longitudinal direction and an inner end portion of the front wall portion 41a in the vehicle width direction. It has an inner wall portion 41b that is orthogonal to the direction, and a flange portion 41f that is orthogonal to the vehicle width direction at the outer peripheral edge, and extends rearward from a corner portion 41c formed at the lower end. A bent portion 41e that is bent and extends inward in the vehicle width direction is formed at the outer peripheral edge of the flange portion 41f rearward from the corner portion 41c. The flange portion 41f is superimposed on the frame fastening portion 21c and fastened and fixed via a plurality of detachable fastening members b1.

In the vicinity of the middle portion of the front vertical wall portion 41, a pair of front and rear mounting portions 41s and 41t for fixing the impact bar 46 to the front vertical wall portion 41 and a plurality of rib portions 41u are provided.
The pair of front attachment portions 41s and 41t are each formed in a partially cylindrical shape, and are formed to bulge outward in the vehicle width direction from the inner wall portion 41b. The front mounting portions 41s and 41t are arranged along the axis of the impact bar 46, and the front mounting portion 41s is arranged above the front mounting portion 41t. The plurality of rib portions 41u are formed to extend outward in the vehicle width direction from the inner wall portion 41b and are connected to the side wall portions of the front attachment portions 41s and 41t. As shown in FIG. 9, some of the rib portions 41u among the plurality of rib portions 41u vertically line up and connect the side wall portions of the front attachment portion 41s and the side wall portions of the front attachment portion 41t.

As shown in FIGS. 5 to 8, FIG. 13, and FIG. It has a pair of upper and lower hinge mounting portions 41d, and a hinge reinforcing member 54 that reinforces these hinge mounting portions 41d. As shown in FIG. 9, the pair of hinge attachment parts 41d are disposed with a front attachment part 41s interposed therebetween. The pair of hinges 51 have front ends fastened and fixed to the hinge pillar 3, and other ends fastened and fixed to a hinge attachment part 41d set on the front wall part 41a, and the pair of hinges 51 have pivot shafts extending vertically through the side door 1. It is supported so that it can rotate freely.

The hinge reinforcing member 54 is formed by press forming a material having higher ductility than Al alloy casting, for example, a steel plate. As shown in FIGS. 8 and 17, the hinge reinforcing member 54 includes a pair of upper and lower hinge connecting portions 54a that can overlap with the rear surface portions of the pair of hinge attachment portions 41d, and a pair of upper and lower hinge connecting portions 54a. An impact bar connecting portion 54b that extends orthogonally and can be overlapped with the top of the front attachment portions 41s and 41t is integrally provided.

Three bolt holes are formed in each of the pair of hinge connecting portions 54a, and two bolt holes are formed in the impact bar connecting portion 54b. As shown in FIG. 13, the impact bar connecting portion 54b is fastened together with the front end of the impact bar 46 via fastening members b2 inserted into bolt holes at the tops of the front mounting portions 41s and 41t. As shown in FIG. 15, the pair of hinge connecting portions 54a are fastened together with the pair of hinges 51 through fastening members b3 inserted into bolt holes of the pair of hinge mounting portions 41d. Thereby, the impact load acting on the impact bar 46 is distributed and transmitted from the hinge reinforcing member 54 to the hinge pillar 3 via the pair of hinges 51.

As shown in FIG. 7, FIG. 8, FIG. 10 to FIG. 12, FIG. 14, and FIG. It has an inner wall part 42b that extends to the inner end and is orthogonal to the vehicle width direction, and a flange part 42f that extends orthogonally to the vehicle width direction to the outer peripheral edge, and extends forward from a corner part 42c formed at the lower end. There is. A bent portion 42e that is bent and extends inward in the vehicle width direction is formed at the outer peripheral edge of the flange portion 42f. The flange portion 42f is overlaid on the frame fastening portion 22c and fastened and fixed via a plurality of detachable fastening members b1. In addition, the code|symbol 7 is an interior trim, and the code|symbol 59 is a door trim.
The plurality of fastening members b1 are composed of bolts and nuts, and the fastening structure on the rear side of the door will be described in detail below. A bolt through hole is formed at a location where the flange portion 42f and the frame fastening portion 22c overlap, and a nut is welded to the outer surface in the vehicle width direction of the frame fastening portion 22c that corresponds to the through hole. The bolts are fastened by screwing them into nuts from the inside of the flange portion 42f in the vehicle width direction through through holes.

The corner portion 42c is provided with a pair of rear mounting portions 42s and 42t, front and rear, for fixing the impact bar 46 to the rear vertical wall portion 42, and a plurality of rib portions 42u.
The pair of rear mounting portions 42s and 42t are each formed in a partially cylindrical shape, and are formed to bulge outward in the vehicle width direction from the inner wall portion 42b. The rear mounting portions 42s and 42t are arranged along the axis of the impact bar 46, and the rear mounting portion 42s is arranged above the rear mounting portion 42t on the front side. The plurality of rib portions 42u are formed to extend outward in the vehicle width direction from the inner wall portion 42b and are connected to the side wall portions of the rear attachment portions 42s and 42t. As shown in FIG. 10, some of the rib parts 42u out of the plurality of rib parts 42u connect the side wall part of the rear mounting part 42s and the side wall part of the rear mounting part 42t along the axial direction of the impact bar 46. The other rib portions 42u connect the rear wall portion 42a and the side wall portion of the rear mounting portion 42s.

As shown in FIG. 6, FIG. 8, FIG. 11, FIG. 12, and FIG. 42d, and a latch reinforcing member 55 for reinforcing this latch mounting portion 42d.
The latch device 52 is composed of a steel lock member (not shown) and a steel casing that accommodates them, and is formed to be removable from a U-shaped striker 53 fixed to the center pillar 4. There is. When the lock member engages with the striker 53, the side door 1 is placed in a locked state, and when the lock member is disengaged from the striker 53, the side door 1 is placed in an unlocked state.

The latch reinforcing member 55 is formed by press forming a material having higher ductility than Al alloy casting, for example, a steel plate. As shown in FIGS. 8 and 18, the latch reinforcing member 55 includes a latch connecting portion 55a that can be overlapped with the front surface of the latch attaching portion 42d, and a rear attaching portion 42s that extends approximately orthogonally to the latch connecting portion 55a. , 42t are integrally provided with an overlapping impact bar connecting portion 55b. The latch connection portion 55a has an inner portion in the vehicle width direction bent and extends forward along the inner wall portion 42b, and a lower portion thereof extends to the corner portion 42c.

The latch connecting portion 55a has three bolt holes and a striker opening 55c into which the striker 53 is inserted, and the impact bar connecting portion 55b has two bolt holes. As shown in FIG. 14, the impact bar connecting portion 55b is fastened together with the rear end portion of the impact bar 46 via a fastening member b2 inserted into a bolt hole at the top of the rear mounting portions 42s, 42t. As shown in FIG. 16, the latch connecting portion 55a is fastened together with the latch device 52 through a fastening member (not shown) inserted into a bolt hole in the latch mounting portion 42d. Thereby, the impact load acting on the impact bar 46 is distributed and transmitted from the latch reinforcing member 55 to the center pillar 4 via the striker 53.

Next, the belt line rain outer member 43 and the belt line rain inner member 44 will be explained. As shown in FIGS. 4 and 6, the belt line rain outer member 43, which extends linearly in the front-rear direction, is formed to have a closed cross section (hollow). The belt line rain outer member 43 has a front end and a rear end of the closed cross section portion fastened to the outer upper ends of the front vertical wall 41 and the rear vertical wall 42 in the vehicle width direction through a plurality of fastening members, respectively. has been done. This belt line rain outer member 43 includes an outer upper vertical wall portion 43a extending linearly at the upper end, and an outer lower vertical wall portion 43b extending linearly at the lower end. A connecting wall portion 23b is attached to the upper portion of the outer upper vertical wall portion 43a.

As shown in FIGS. 4 and 7, the belt line rain inner member 44, which extends linearly in the front-rear direction, is formed to have a closed cross section (hollow). The belt line rain inner member 44 includes an inner upper vertical wall portion 44a extending linearly at the upper end, and an inner lower vertical wall portion 44b extending linearly from the lower end. In the belt line rain inner member 44, the inner upper vertical wall 44a is fastened to the inner upper ends of the front vertical wall 41 and the rear vertical wall 42 in the vehicle width direction at one place, respectively, via fastening members, and the inner lower vertical wall The portions 44b are fastened to the inner upper end portions of the front vertical wall portion 41 and the rear vertical wall portion 42 in the vehicle width direction at two locations, respectively, via fastening members.

As shown in FIGS. 5 to 7, the frame member 32 includes an impact bar 46, a stiffener 47, a covering member 48, first to third seal members 56 to 58, and a pair of door glass units 60. Belt line seal members, etc. are installed.
As described above, the impact bar 46 is disposed in a forward upward slope from the middle part of the front vertical wall part 41 to the corner part 42c of the rear vertical wall part 42. A plurality of sealer members 56a that can be adhered to the back surface of the outer panel 11 are provided on the outer wall surface of the impact bar 46 in the vehicle width direction.

The stiffener 47 is a member that ensures tension and rigidity of the rear half of the outer panel 11.
The stiffener 47 made of Al alloy is formed into an inverted triangular shape when viewed from the side, and is fastened to the outer lower vertical wall portion 43b at three upper portions and to the impact bar 46 at one lower portion. The stiffener 47 is provided with a plurality of (for example, three) cutout portions at the bottom in order to reduce the weight, and a plurality of sealer members 57a that can be bonded to the back surface of the outer panel 11 are provided around these cutout portions. There is.

As shown in FIGS. 2 and 5, on the upper part of the belt line rain inner member 44 (inner upper vertical wall portion 44a), there is a covering member 48 that extends back and forth and is attached with a belt line seal inner member (not shown). attached. The covering member 48 has a substantially L-shaped cross section, and is formed to cover the gap between the door glass 61 and the belt line inner member 44 on the upper side. The door glass unit 60 includes a door glass 61, a regulator mechanism 62 for driving the door glass 61 up and down, and the like. The regulator mechanism 62 includes a pair of front and rear guide rails that guide the door glass 61, a motor section that drives the door glass 61 up and down, and the like. The regulator mechanism 62 has an upper portion fixed to the inner upper vertical wall portion 44 a at two locations and an inner lower vertical wall portion 44 b at one location, and a lower portion fixed to the lower wall portion 45 at one location.

Next, the first to third seal members 56 to 58 will be explained.
The first to third seal members 56 to 58 are made of an elastic body (eg, rubber material, etc.) having a hollow portion. As shown in FIGS. 2, 5, and 7, the first seal member 56 is disposed on the outermost side, the second seal member 57 is disposed on the inner circumference side than the first seal member 56, and the third seal member 58 is arranged on the inner peripheral side than the second seal member 57.

The first sealing member 56 seals the lower and rear portions of the frame member 32, including the corner portions 41c, with respect to the vehicle body. This is because if a sealing member is provided at the front end edge of the inner member 30, a repulsive force may be generated in the area near the hinge 51, which may hinder the operability of closing the door.
The second and third seal members 57 and 58 extend from the front upper end of the frame member 32 through the lower part to the rear upper end thereof, and seal the frame member 32 against the vehicle body side.

As shown in FIG. 11, FIG. 12, FIG. 14, and FIG. It is fixed via a fastener f1. In the rear vertical wall portion 42, the plurality of fasteners f1 are disposed on the flange portion 42f so as to be lined up in close proximity to the fastening member b1 in the circumferential direction, and the first seal member 56 fixed to the flange portion 42f is attached to the center pillar. There is a seal between 4 and 4. As a result, the first seal member 56 covers the head of the fastening member b1 from the inside in the vehicle width direction, thereby preventing the passenger from seeing the fastening member b1 and improving the appearance. Here, a procedure for removing the outer member 10 when, for example, a large scratch or dent occurs on the outer panel 11 will be explained. First, the first seal member 56 is pulled in a direction away from the vertical wall portions 41, 42, 45 to release the fastener f1 and make the bolt of the fastening member b1 accessible. Next, the outer member 10 can be removed from the inner member 30 by removing the bolt of the fastening member b1 from the nut using a tool or the like. The procedure for attaching the replaced new outer member 10 to the inner member 30 is the reverse procedure of the above-mentioned removal procedure.

The first seal member 56 also includes a gap filling portion 56a extending outward in the vehicle width direction from the outer peripheral edge. This gap filling portion 56a engages with the bent portion 42e, in other words, cooperates with the inner circumferential portion to sandwich the bent portion 42e and forms a gap between the frame fastening portion 22c and the flange portion 42f. It is configured to cover the gap from the outer periphery. This makes it possible to firmly attach the first seal member 56 to the flange portion 42f and to improve the appearance.
Also in the lower part of the front vertical wall part 41, similarly to the rear vertical wall part 42, the plurality of fasteners f1 are arranged on the flange part 42f so as to be lined up in the circumferential direction with the fastening member b1, and the gap filling part 56a is arranged in the flange part 42f. The gap created at the abutting portion with 41f is covered from the outer periphery. The sealing pressure (internal pressure) of the first sealing member 56 is set to be lower than the sealing pressure of the second sealing member 57.

As shown in FIGS. 11, 12, and 14 to 16, the second seal member 57 is fixed to the front vertical wall portion 41 and the rear vertical wall portion 42 via a plurality of fasteners f2 extending in the front-rear direction, It is fixed to the lower wall portion 45 via a plurality of fasteners f2 extending in the vertical direction. The second seal member 57 is a main seal member that seals the inside and outside of the vehicle interior between the side sill 2, the hinge pillar 3, the center pillar 4, and the inner member 30. The sealing pressure of the second sealing member 57 is set higher than the sealing pressure of the first and third sealing members 56 and 58.

As shown in FIGS. 11 to 16, the third seal member 58 is fixed to the front vertical wall portion 41, the rear vertical wall portion 42, and the lower wall portion 45 via a plurality of fasteners f3 extending in the vehicle width direction. There is.
The third seal member 58 is a seal member that seals between the interior trim 7 and the door trim 59. The third seal member 58 has hollow portions formed corresponding to the interior trim 7 and the door trim 59, respectively, and a fastener f3 is disposed between each hollow portion.

Next, the functions and effects of the side door structure of the vehicle V will be explained.
According to this side door structure, since the outer peripheral edge of the outer panel 11 is connected to the annular frame member 12, which is thinner than the inner member 30, by hemming, the outer panel 11 constituting the design surface part is wrinkle free. The outer panel 11 and the frame member 12 can be connected without causing distortion or distortion, and the appearance can be improved. Since the inner member 30 has the front vertical wall portion 41 and the rear vertical wall portion 42 formed by casting, a lightweight material can be used, and the side door 1 can be made lighter. Furthermore, since the frame member 12 of the outer member 10 is fixed to the inner member 30 via the plurality of removable fastening members b1, ease of attachment and detachment between the outer member 10 and the inner member 30 can be ensured, and assembly is possible. Workability and repairability can be improved, and for example, when a large scratch or dent occurs on the outer panel 11, there is no need to replace the entire door, and only the outer member 10 needs to be replaced.

The inner member 30 has a first seal member 56 that seals between the inner member 30 and the vehicle body, and the first seal member 56 is provided so as to cover the plurality of fastening members b1 at least in part of the outer peripheral edge of the inner member 30. Therefore, visual recognition of the fastening member b1 by the occupant can be avoided, and the appearance can be further improved.

The front vertical wall portion 41 and the rear vertical wall portion 42 are bent inward in the vehicle width direction at their outer peripheral edges and have bent portions 41e and 42e that can be engaged with the first seal member 56, so that the first seal The attachment strength of the member 56 can be increased.

The first seal member 56 has a gap filling part 56a that covers the gap formed between the outer peripheral edge of the front vertical wall part 41 and the rear vertical wall part 42 and the frame member 12, so that the outer member 10 and the inner member 30 The gap between the connecting portions can be covered using the first sealing member 56, and good appearance and sealability can be ensured.

The inner member 30 has a second seal member 57 on the inner peripheral side of the first seal member 56 for sealing between it and the vehicle body, and the first seal member 56 is inwardly in contact with the vehicle body than the second seal member 57 is. Since the pressure is set low, when the side door 1 is closed, the repulsive force of the first seal member 56 is suppressed, thereby ensuring sealing performance and improving the closing operability.

Next, a modified example in which the above embodiment is partially modified will be described.
1] In the above embodiment, an example of a sashless type side door 1 for a two-door hardtop passenger car has been described, but the model of the vehicle can be arbitrarily selected, and it can also be applied to a sash type side door. It is also possible to do so.

2] In the above embodiment, an example was explained in which the outer member 10 and the inner member 30 were basically constructed using an Al alloy material. Any material can be applied, such as a high strength material such as CFRP.

3] In the embodiment described above, an example was explained in which the first to third seal members 56 to 58 were provided, but at least the first seal member 56 that covers the fastening member b1 and the second seal member 57 that is the main seal member are provided. It is also possible to omit the third seal member 58.

4] In addition, those skilled in the art can implement various modifications to the embodiments described above or combinations of the embodiments without departing from the spirit of the present invention, and the present invention can be implemented in such a manner. It also includes any modifications.

1 Side door 10 Outer member 11 Outer panel 12 Frame member 30 Inner member 41 Front vertical wall portion 41e Bending portion 42 Rear vertical wall portion 42e Bending portion 56 First sealing member 56a Gap filling portion 57 Second sealing member b1 Fastening member V vehicle

Claims (4)

A side door structure for a vehicle comprising an outer member and an inner member connected to the outer member and having a front vertical wall portion and a rear vertical wall portion in the longitudinal direction of the vehicle body,
The outer member has an outer panel and an annular frame member that is thinner than the inner member and connected to the outer peripheral edge of the outer panel by hemming,
The inner member has the front vertical wall portion and the rear vertical wall portion formed by casting or made of a high-strength resin material, and is fixed to the frame member via a plurality of detachable fastening members ,
The inner member has a first seal member that seals between the inner member and the vehicle body,
A side door structure for a vehicle , wherein the first sealing member is provided so as to cover the plurality of fastening members at least in part of the outer peripheral edge of the inner member . According to claim 1, the front vertical wall portion and the rear vertical wall portion have a bent portion that is bent inward in the vehicle width direction at an outer peripheral edge portion and can be engaged with the first seal member. Side door structure of the vehicle described. 3. The first sealing member has a gap-filling portion that covers a gap formed between the outer peripheral edges of the front vertical wall portion and the rear vertical wall portion and the frame member . vehicle side door structure. The inner member has a second seal member on the inner peripheral side of the first seal member that seals between the inner member and the vehicle body,
The side door structure for a vehicle according to any one of claims 1 to 3 , wherein the first seal member is set to have a lower internal pressure against the vehicle body than the second seal member .