Vehicle opening / closing body mounting structure

Abstract

To provide an opening / closing body mounting structure for a vehicle that is able to improve the usability of an opening / closing body.SOLUTION: An opening / closing body mounting structure for a vehicle includes: a base member 30 that is adjacent to an edge of an opening and is mounted on a vehicle body; and a support member 40 that is adjacent to the base member 30 and is supported by an opening / closing body. The opening / closing body mounting structure includes a first urging member 70 that is provided between the base member 30 and the support member 40 and urges the opening / closing body in an opening / closing direction A of the opening / closing body. The first urging member 70 is configured such that a direction in which the opening / closing body is urged is reversed at a reverse position AT between a fully closed position AC and a fully open position AO. In addition, the first urging member 70 is configured to urge the opening / closing body toward the fully closed position AC when the opening / closing body is on the fully closed position AC side with respect to the reverse position AT, and to urge the opening / closing body toward the fully open position AO when the opening / closing body is on the fully open position AO side with respect to the reverse position AT.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a structure for mounting an opening / closing body on a vehicle. [Background technology]

[0002] A vehicle door mounting structure is described in Patent Document 1. The door mounting structure described in Patent Document 1 is a structure in which a door for opening and closing an opening formed in a side portion of a vehicle body is mounted to the vehicle body via a hinge provided at the front end of the door in the vehicle front-rear direction.

[0003] A bracket is provided in the opening and supported by a frame, which serves as a vehicle structural body. The bracket extends vertically. Base ends of a pair of upper and lower hinges are attached to the bracket.

[0004] A vertically extending end plate is attached to the front edge of the door, and a pair of hinges are attached to the end plate. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-71394 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the door mounting structure described in Patent Document 1, if an external force such as wind acts on the door while it is open, the door may close against the user's will. Also, when closing the door, the user needs to push the door to the fully closed position. Therefore, a door mounting structure that is easy to use is desired.

[0007] It should be noted that these problems are not limited to door mounting structures, but also arise in the mounting structure of an opening / closing body that opens and closes an opening that connects the inside and outside of a vehicle. [Means for solving the problem]

[0008] Various aspects of the vehicle opening / closing body mounting structure for solving the above problems will be described. [Mode 1] An opening / closing body mounting structure for a vehicle, comprising: a vehicle body having an opening communicating between the inside and outside of the vehicle; an opening / closing body configured to open and close the opening; a base member adjacent to the edge of the opening and attached to the vehicle body; a support member adjacent to the base member and supported by the opening / closing body; a hinge connecting the base member and the support member so that the opening is opened and closed by the opening / closing body; and a biasing member provided between the base member and the support member and biasing the opening / closing body in the opening and closing direction of the opening / closing body, wherein the biasing member is configured to reverse the direction in which it biases the opening / closing body at a reversal position between a fully closed position where the opening degree of the opening / closing body is minimum and a fully open position where the opening degree of the opening / closing body is maximum, and is configured to bias the opening / closing body toward the fully closed position when the opening / closing body is closer to the fully closed position than the reversal position, and to bias the opening / closing body toward the fully open position when the opening / closing body is closer to the fully open position than the reversal position.

[0009] According to the above aspect, when a user releases the opening / closing body when the opening / closing body is located closer to the fully closed position than the reverse position, the opening / closing body is biased by the biasing member, causing the opening / closing body to move to the fully closed position and be held in the fully closed position. Also, when a user releases the opening / closing body when the opening / closing body is located closer to the fully open position than the reverse position, the opening / closing body is biased by the biasing member, causing the opening / closing body to move to the fully open position and be held in the fully open position. Therefore, the usability of the opening / closing body can be improved.

[0010] [Aspect 2] The vehicle opening / closing body mounting structure described in [Aspect 1], wherein the biasing member is a tension coil spring that is in its most extended state when the opening / closing body is in the inverted position. According to the above aspect, when the opening / closing body is located closer to the fully closed position than the reverse position, the opening / closing body is biased toward the fully closed position by the restoring force of the extended tension coil spring. On the other hand, when the opening / closing body is located closer to the fully open position than the reverse position, the opening / closing body is biased toward the fully open position by the restoring force of the extended tension coil spring. Therefore, the biasing member can be easily realized.

[0011] [Aspect 3] An opening / closing body mounting structure for a vehicle described in [Aspect 1] or [Aspect 2], wherein the opening is an entrance / exit opening provided on the side of the vehicle body, the opening / closing body is a side door configured to open and close the entrance / exit opening, and the support member extends in the vertical direction of the vehicle and is provided at the front end of the opening / closing body in the fully closed position.

[0012] According to the above aspect, the side door that opens and closes the vehicle entrance can be held in the fully open position. [Aspect 4] A vehicle opening / closing body mounting structure as described in [Aspect 3], which is provided with a fastening member that fastens the hinge and the support member, and when the biasing member is a first biasing member, a second biasing member that biases the support member downward is provided between the base member and the support member.

[0013] Generally, in a configuration in which a hinge and a support member are fastened together via a fastening member, there is a degree of freedom in the attachment between the support member and the hinge in the vertical direction. However, this degree of freedom in the attachment may cause the attachment position of the support member relative to the hinge to vary in the vertical direction.

[0014] In this regard, according to the above aspect, when the hinge and the support member are temporarily fastened by the fastening member, the support member is biased downward by the second biasing member. This prevents the mounting position of the support member relative to the hinge from varying in the vertical direction. Therefore, the side door can be easily positioned in the vertical direction relative to the vehicle body.

[0015] [Aspect 5] A vehicle opening / closing body mounting structure according to any one of [Aspect 1] to [Aspect 4], in which a plurality of the biasing members are provided. According to the above aspect, the stress acting on the base member and the support member from the biasing member can be dispersed, thereby preventing stress concentration on the base member and the support member.

[0016] [Aspect 6] A vehicle opening / closing body mounting structure described in any one of [Aspect 1] to [Aspect 5], wherein the inversion position is set closer to the fully open position in the opening / closing direction of the opening / closing body.

[0017] If the reversing position is set closer to the fully closed position in the opening and closing direction of the opening / closing body, when the user releases the opening / closing body when it is open closer to the fully closed position, the opening / closing body may start to move toward the fully open position against the user's will. This problem is more likely to occur the closer the reversing position is to the fully closed position.

[0018] In this regard, according to the above aspect, the occurrence of the above-mentioned inconvenience can be suppressed. [Aspect 7] The opening / closing body has an exterior panel and a pipe frame attached to the inner surface of the exterior panel, and the support member is attached to the pipe frame, in a vehicle opening / closing body mounting structure described in any one of [Aspect 1] to [Aspect 6].

[0019] According to the above aspect, the structure of the opening / closing body can be simplified and the weight of the opening / closing body can be reduced, which allows the use of a biasing member with a small biasing force. [Effects of the Invention]

[0020] According to the present invention, the usability of the opening / closing body can be improved. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 1 is a perspective view of a vehicle equipped with an opening / closing body mounting structure for a vehicle according to one embodiment. [Figure 2]FIG. 2 is a side view of the vehicle shown in FIG. 1, focusing on a side door. [Figure 3] FIG. 3 is a perspective view of the side door of FIG. 1, focusing on a hinge connected to the side door. [Figure 4] FIG. 4 is a perspective view showing the base member of FIG. [Figure 5] FIG. 5 is an exploded perspective view showing the support member of FIG. [Figure 6] FIG. 6 is a side view of the lower hinge of FIG. [Figure 7] FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 3, illustrating the operation of the first biasing member. [Figure 8] FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 3, illustrating the operation of the second biasing member. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, with reference to Figs. 1 to 8, a specific embodiment of an opening / closing body mounting structure for a vehicle will be described. In the following description, the longitudinal direction of the vehicle will be referred to as the longitudinal direction L, the width direction of the vehicle as the width direction W, and the vertical direction of the vehicle when the vehicle is positioned on a horizontal plane as the vertical direction Z.

[0023] In addition, the front and rear sides in the front-rear direction L will be simply referred to as the "front side" and the "rear side", respectively, and the upper and lower sides in the up-down direction Z will be simply referred to as the "upper side" and the "lower side", respectively.

[0024] 1 and 2, an opening 12 that communicates the inside and outside of the vehicle is provided in a side surface 11 of a vehicle body 10. In this embodiment, the opening 12 is an entrance / exit door provided in the side surface 11 of the vehicle body 10. An outer cover 16 that constitutes the side surface of the vehicle body 10 is provided adjacent to the front side of the opening 12. The leading edge portion of the opening 12 is formed by the trailing edge portion of the outer cover 16.

[0025] The vehicle body 10 is provided with an opening / closing body 13 configured to open and close the opening 12. The opening / closing body 13 in this embodiment is a side door. Next, the mounting structure of the opening / closing body 13 will be described in detail.

[0026] As shown in FIG. 2, a frame 17 extending in the vertical direction Z and constituting the vehicle body 10 is provided inside the outer cover 16 in the vehicle width direction W. <Base member 30> 2, a base member 30 is provided inside the outer cover 16 in the vehicle width direction W. The base member 30 is adjacent to the front edge portion 12a of the opening 12 and is attached to the frame 17.

[0027] As shown in FIGS. 3 and 4, the base member 30 has a side wall 31, an upper wall 32, and a lower wall 33. The side wall 31 is located outside the frame 17 in the vehicle width direction W and extends in the up-down direction Z.

[0028] The upper wall 32 is bent at an upper end 31a of the side wall 31 and extends inward in the vehicle width direction W. The upper wall 32 is provided with a recess 32a for accommodating the frame 17. The lower wall 33 is bent at a lower end 31b of the side wall 31 and extends inward in the vehicle width direction W. The lower wall 33 is provided with a recess 33a for accommodating the frame 17.

[0029] The edges of the recesses 32a and 33a are welded to the outer peripheral surface of the frame 17, whereby the base member 30 is fixed to the frame 17. A plurality of through holes 34 are provided in the center portion of the side wall 31 in the vertical direction Z.

[0030] The through holes 34 are arranged two by two in both the front-rear direction L and the up-down direction Z. A fastening portion 35 that protrudes downward is provided at the front edge of the lower wall 33. The fastening portion 35 has a through hole 36 formed therein.

[0031] The base member 30 is made of a metal plate. <Opening and closing body 13> 2, the opening / closing body 13 has an exterior panel 14 and a pipe frame 15 attached to the inner surface of the exterior panel 14. The pipe frame 15 extends along the outer peripheral edge 14a of the exterior panel 14.

[0032] The exterior panel 14 is made of synthetic resin. Specifically, the exterior panel 14 is made of a base fabric having a woven fabric of synthetic resin fibers and a synthetic resin film provided on the back surface of the woven fabric. The pipe frame 15 is made of metal.

[0033] <Support member 40> As shown in FIG. 2, the support member 40 is provided behind the base member 30 when the opening / closing body 13 is in the fully closed position AC where the opening / closing body 13 closes the opening 12.

[0034] The support member 40 is adjacent to the base member 30 and is supported by the opening / closing body 13. The support member 40 extends in the vertical direction Z and is provided at the front end 13a of the opening / closing body 13 when it is in the fully closed position AC.

[0035] As shown in FIGS. 3 and 5, the support member 40 has a front wall 41, an outer wall 42, and an inner wall 43. The front wall 41 is located in front of the pipe frame 15 and extends in the vertical direction Z.

[0036] The outer wall 42 bends and extends rearward from an outer edge 41a, which is an edge located outside the front wall 41 in the vehicle width direction W. The outer wall 42 is located outside the pipe frame 15 in the vehicle width direction W.

[0037] The inner wall 43 bends and extends rearward from an inner edge 41b, which is an edge located on the inner side of the front wall 41 in the vehicle width direction W. The inner wall 43 is located on the inner side of the pipe frame 15 in the vehicle width direction W.

[0038] A notch 44 is provided in the center portion of the support member 40 in the up-down direction Z. The notch 44 is provided across the front wall 41 and the outer wall 42. An extension portion 45 is provided at the lower end of the outer wall 42, extending downward further than the front wall 41. A through hole 46 is provided in the extension portion 45.

[0039] The through-hole 46 is located lower than the through-hole 36 . A plurality of through holes (not shown) that penetrate in the vehicle width direction W are provided in the portion of the pipe frame 15 that is covered by the support member 40.

[0040] A collar 47 is inserted into each through hole. Two collars 47 are provided above and two below the notch 44 . A bolt 48 is inserted through the through hole of the outer wall 42 , the collar 47 , and the through hole of the inner wall 43 , and a nut 49 is screwed onto the bolt 48 , thereby fastening the support member 40 to the pipe frame 15 .

[0041] The outer wall 42 is provided with a mounting portion 50. The mounting portion 50 is provided at a position that overlaps with the notch 44 in the vertical direction Z. The mounting portion 50 has a pair of fastening portions 51 , a pair of side wall portions 52 , and a connecting portion 53 .

[0042] One fastening portion 51 is fastened to a portion of the outer wall 42 above the notch 44 by the second bolt 48 and nut 49 from the top. The other fastening portion 51 is fastened to a portion of the outer wall 42 below the notch 44 by the third bolt 48 and nut 49 from the top.

[0043] One side wall portion 52 protrudes outward in the vehicle width direction W from the lower end of the upper fastening portion 51. The other side wall portion 52 protrudes outward in the vehicle width direction W from the upper end of the lower fastening portion 51.

[0044] The connecting portion 53 connects the protruding ends of the side wall portions 52 and covers a part of the notch 44 from the outside in the vehicle width direction W. The connecting portion 53 is provided with two through holes 54 spaced apart from each other in the vertical direction Z.

[0045] <Hinge 60> As shown in FIG. 3 , a hinge 60 is provided between the base member 30 and the support member 40. The hinge 60 connects the base member 30 and the support member 40 so that the opening 12 can be opened and closed by the opening / closing body 13. In this embodiment, two hinges 60 are provided so as to sandwich the notch 44 from above and below. One end of the hinge 60 is fastened to the front wall 41 of the support member 40 by a fastening member 61. The fastening member 61 is a bolt and a nut. The other end of the hinge 60 is fastened to the side wall 31 of the base member 30 by a fastening member 62. The fastening member 62 is a bolt and a nut.

[0046] <First biasing member 70> As shown in FIGS. 3 and 7, a first biasing member 70 is provided between the base member 30 and the support member 40.

[0047] The first biasing members 70 are provided in pairs and are arranged side by side in the vertical direction Z. The first biasing member 70 is a tension coil spring. One end of the first biasing member 70 is attached to the through-hole 34. The other end of the first biasing member 70 is attached to the through-hole 54.

[0048] As shown in FIG. 7, the first biasing member 70 biases the opening / closing body 13 in the opening / closing direction A of the opening / closing body 13. The first biasing member 70 is configured so that the direction of biasing the opening / closing body 13 reverses at a reversal position AT between the fully closed position AC, where the opening degree of the opening / closing body 13 is at its smallest, and the fully open position AO, where the opening degree of the opening / closing body 13 is at its largest.

[0049] The first biasing member 70 is configured to bias the opening / closing body 13 toward the fully closed position AC when the opening / closing body 13 is located closer to the fully closed position AC than the reversal position AT. On the other hand, the first biasing member 70 is configured to bias the opening / closing body 13 toward the fully open position AO when the opening / closing body 13 is located closer to the fully open position AO than the reversal position AT.

[0050] The first biasing member 70 is in the most extended state when the opening / closing body 13 is in the reverse position AT. The reversal position AT is set closer to the fully open position AO in the opening / closing direction A of the opening / closing body 13.

[0051] <Second biasing member 80> As shown in FIGS. 3 and 6, a second biasing member 80 is provided between the base member 30 and the support member 40 to bias the support member 40 downward.

[0052] The second biasing member 80 is a tension coil spring. One end of the second biasing member 80 is attached to the through-hole 36. The other end of the second biasing member 80 is attached to the through-hole 46. The second biasing member 80 is inclined so that the closer it is to the support member 40, the lower it is positioned.

[0053] The second biasing member 80 pulls the support member 40 toward the through-hole 36 below the lower hinge 60. Here, as shown in Fig. 6, when the support member 40 is pulled by the other end of the second biasing member 80, a rotational force acts on the support member 40 in the downward direction, centered on the axis C connecting the lower hinge 60 and the through-hole 46. Therefore, the second biasing member 80 biases the support member 40 downward.

[0054] 8, the second biasing member 80 biases the opening / closing body 13 in the opening / closing direction A of the opening / closing body 13, similar to the first biasing member 70. The second biasing member 80 is configured so that the direction of biasing the opening / closing body 13 is reversed at the reversal position AT. The second biasing member 80 is configured to bias the opening / closing body 13 toward the fully closed position AC when the opening / closing body 13 is closer to the fully closed position AC than the reversal position AT. On the other hand, the second biasing member 80 is configured to bias the opening / closing body 13 toward the fully open position AO when the opening / closing body 13 is closer to the fully open position AO than the reversal position AT.

[0055] The second biasing member 80 is in the most extended state when the opening / closing body 13 is in the reverse position AT. Next, the operation of this embodiment will be described.

[0056] 7, when the user releases the opening / closing body 13 while the opening / closing body 13 is located closer to the fully closed position AC than the reverse position AT, the opening / closing body 13 moves to the fully closed position AC and is held at that position. Also, when the user releases the opening / closing body 13 while the opening / closing body 13 is located closer to the fully open position AO than the reverse position AT, the opening / closing body 13 moves to the fully open position AO and is held at that position.

[0057] Next, the effects of this embodiment will be described. (1) A first biasing member 70 is provided between the base member 30 and the support member 40 to bias the opening / closing body 13 in the opening / closing direction A of the opening / closing body 13. The first biasing member 70 is configured so that the direction of biasing the opening / closing body 13 reverses at a reversal position AT between a fully closed position AC, where the opening degree of the opening / closing body 13 is minimum, and a fully open position AO, where the opening degree of the opening / closing body 13 is maximum. The first biasing member 70 is configured to bias the opening / closing body 13 toward the fully closed position AC when the opening / closing body 13 is located closer to the fully closed position AC than the reversal position AT. On the other hand, the first biasing member 70 is configured to bias the opening / closing body 13 toward the fully open position AO when the opening / closing body 13 is located closer to the fully open position AO than the reversal position AT.

[0058] With this configuration, the above-mentioned effects are achieved, and the usability of the opening / closing body 13 can be improved. (2) The first biasing member 70 is a tension coil spring that is in a most stretched state when the opening / closing body 13 is in the reverse position AT.

[0059] According to this configuration, when the opening-closing body 13 is closer to the fully closed position AC than the reverse position AT, the opening-closing body 13 is biased toward the fully closed position AC by the restoring force of the extended tension coil spring. On the other hand, when the opening-closing body 13 is closer to the fully open position AO than the reverse position AT, the opening-closing body 13 is biased toward the fully open position AO by the restoring force of the extended tension coil spring. Therefore, the first biasing member 70 can be easily realized.

[0060] (3) The opening 12 is an entrance / exit opening provided on the side surface 11 of the vehicle body 10. The opening / closing body 13 is a side door configured to open and close the entrance / exit opening. The support member 40 extends in the vertical direction Z of the vehicle and is provided at the front end 13a of the opening / closing body 13 when it is in the fully closed position AC.

[0061] With this configuration, the side door that opens and closes the entrance to the vehicle can be held in the fully open position AO. (4) The fastening member 61 fastens the hinge 60 to the support member 40. A second biasing member 80 is provided between the base member 30 and the support member 40 to bias the support member 40 downward.

[0062] Generally, in a configuration in which the hinge 60 and the support member 40 are fastened together via the fastening member 61, a degree of freedom in attachment in the vertical direction Z is set between the support member 40 and the hinge 60. However, due to this degree of attachment freedom, there is a risk that the attachment position of the support member 40 relative to the hinge 60 will vary in the vertical direction Z.

[0063] In this regard, according to the above configuration, when the hinge 60 and the support member 40 are temporarily fastened by the fastening member 61, the support member 40 is biased downward by the second biasing member 80. This prevents the mounting position of the support member 40 relative to the hinge 60 from varying in the vertical direction Z. Therefore, the positioning of the side door relative to the vehicle body 10 in the vertical direction Z can be easily performed.

[0064] (5) A plurality of first biasing members 70 are provided. This configuration can disperse the stress acting on the base member 30 and the support member 40 from the first biasing member 70. Therefore, the occurrence of stress concentration on the base member 30 and the support member 40 can be suppressed.

[0065] (6) The reversal position AT is set closer to the fully open position AO than the fully closed position AC in the opening / closing direction A of the opening / closing body 13. If the reversal position AT is set closer to the fully closed position AC in the opening / closing direction A of the opening / closing body 13, when the user releases the opening / closing body 13 when the opening is closer to the fully closed position AC, the opening / closing body 13 will start to move toward the fully open position AO against the user's will, which is an inconvenience. This inconvenience is more likely to occur the closer the reversal position AT is to the fully closed position AC.

[0066] In this regard, the above configuration can prevent the above-mentioned inconvenience from occurring. (7) The opening / closing body 13 has an exterior panel 14 and a pipe frame 15 attached to the inner surface of the exterior panel 14. The support member 40 is attached to the pipe frame 15.

[0067] This configuration simplifies the configuration of the opening / closing body 13 and reduces the weight of the opening / closing body 13. This allows the first biasing member 70 with a small biasing force to be employed.

[0068] <Modification> This embodiment can be modified as follows: This embodiment and the following modifications can be combined and implemented within the scope of technical compatibility.

[0069] The exterior panel 14 is not limited to being made of synthetic resin, but may be made of metal plate. In this case, the opening / closing body 13 may be equipped with a pipe frame 15 or may be equipped with a frame of another shape.

[0070] In this embodiment, the reversal position AT is set closer to the fully open position AO in the opening / closing direction A of the opening / closing body 13, but the reversal position AT may be changed as appropriate, for example, by setting the reversal position AT at a midpoint between the fully closed position AC and the fully open position AO in the opening / closing direction A.

[0071] The number of first biasing members 70 is not limited to two, but may be one, or three or more. The second biasing member 80 is not limited to being provided between the lower ends of the base member 30 and the support member 40, and the arrangement of the second biasing member 80 may be changed as appropriate as long as it biases the opening / closing body 13 downward.

[0072] The second biasing member 80 may be omitted. The opening / closing body 13 is not limited to a side door, but may be embodied as a back door that opens and closes a luggage compartment opening, or as an opening / closing body that opens and closes a roof opening.

[0073] The first biasing member 70 is not limited to a tension coil spring, but may be another biasing member such as a leaf spring. In this embodiment, the first biasing member 70 is configured to be in the most extended state at the reversal position AT, but this is not limited to this. As long as the biasing direction of the opening / closing body 13 is reversed at the reversal position AT, the first biasing member 70 does not have to be in the most extended state at the reversal position AT. [Explanation of symbols]

[0074] 10...Body 11...Side 12...Opening (boarding / alighting) 12a...Edge 13...Opening and closing body (side door) 13a...front end 14...Exterior panel 14a...Outer edge 15...Pipe frame 16...Outer cover 17...Frame 30...Base member 31…Side wall 31a…Top end 31b…lower end 32...Upper wall 32a...recess 33...Lower wall 33a...recess 34...Through hole 35... Fastening part 36...Through hole 40...Support member 41...Front wall 41a...outer edge 41b…Inner edge 42...Outside wall 43...Inner wall 44...Notch 45...Extension part 46...Through hole 47...Color 48...volts 49...Nat 50...Mounting part 51... Fastening part 52...Side wall 53...Connection part 54...Through hole 60...hinge 61... Fastening member 62...Fastening member 70...First biasing member (tension coil spring) 80...Second biasing member (tension coil spring)

Claims

1. a vehicle body having an opening communicating the inside and outside of the vehicle; an opening / closing body configured to open and close the opening; a base member adjacent to an edge of the opening and attached to the vehicle body; a support member adjacent to the base member and supported by the opening / closing body; a hinge connecting the base member and the support member so that the opening is opened and closed by the opening / closing body; a biasing member provided between the base member and the support member and biasing the opening / closing body in an opening / closing direction of the opening / closing body, The biasing member is configured such that the direction of biasing the opening / closing body is reversed at a reversal position between a fully closed position where the opening degree of the opening / closing body is minimum and a fully open position where the opening degree of the opening / closing body is maximum, and when the opening / closing body is closer to the fully closed position than the reversal position, the biasing member biases the opening / closing body toward the fully closed position, and when the opening / closing body is closer to the fully open position than the reversal position, the biasing member biases the opening / closing body toward the fully open position, the opening is an entrance / exit door provided on a side surface of the vehicle body, the opening / closing body is a side door configured to open and close the boarding / alighting door, the support member extends in the up-down direction of the vehicle and is provided at a front end of the opening-closing body when in the fully closed position, a fastening member for fastening the hinge and the support member together; When the biasing member is a first biasing member, A second biasing member is provided between the base member and the support member to bias the support member downward. Vehicle opening and closing body mounting structure.

2. The biasing member is a tension coil spring that is in a most stretched state when the opening / closing body is in the reverse position. The vehicle opening / closing body mounting structure according to claim 1.

3. A plurality of the biasing members are provided. The vehicle opening / closing body mounting structure according to claim 1.

4. The reversal position is set closer to the fully open position in the opening and closing direction of the opening and closing body. The vehicle opening / closing body mounting structure according to claim 1.

5. The opening and closing body has an exterior panel and a pipe frame attached to the inner surface of the exterior panel, The support member is attached to the pipe frame. The vehicle opening / closing body mounting structure according to any one of claims 1 to 4.

6. A vehicle body having an opening communicating the inside and outside of the vehicle; an opening / closing body configured to open and close the opening; a base member adjacent to an edge of the opening and attached to the vehicle body; a support member adjacent to the base member and supported by the opening / closing body; a hinge connecting the base member and the support member so that the opening is opened and closed by the opening / closing body; a biasing member provided between the base member and the support member and biasing the opening / closing body in an opening / closing direction of the opening / closing body, The biasing member is configured such that the direction of biasing the opening / closing body is reversed at a reversal position between a fully closed position where the opening degree of the opening / closing body is minimum and a fully open position where the opening degree of the opening / closing body is maximum, and when the opening / closing body is closer to the fully closed position than the reversal position, the biasing member biases the opening / closing body toward the fully closed position, and when the opening / closing body is closer to the fully open position than the reversal position, the biasing member biases the opening / closing body toward the fully open position, The opening / closing body includes an exterior panel and a pipe frame attached to an inner surface of the exterior panel, The support member is attached to the pipe frame. Vehicle opening and closing body mounting structure.

7. The biasing member is a tension coil spring that is in its most extended state when the opening / closing body is in the inverted position. The vehicle opening / closing body mounting structure according to claim 6.

8. The opening is an entrance / exit door provided on the side of the vehicle body, the opening / closing body is a side door configured to open and close the boarding / alighting door, The support member extends in the vertical direction of the vehicle and is provided at a front end of the opening / closing body when the opening / closing body is in the fully closed position. The vehicle opening / closing body mounting structure according to claim 6.

9. A plurality of the biasing members are provided. The vehicle opening / closing body mounting structure according to claim 6.

10. The reversal position is set closer to the fully open position in the opening and closing direction of the opening and closing body. The vehicle opening / closing body mounting structure according to claim 6.

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