JP6175406B2 - Vehicle door - Google Patents

Description

  The present invention relates to a vehicle door in which an inner panel and an outer panel are provided on a door body, and an inner reinforcing member and an outer reinforcing member are provided on both panels.

As a vehicle door, the front end of the door body is attached to the door opening of the vehicle body via a hinge, and an outer reinforcing member and an inner reinforcing member are provided along the belt line on the upper edge of the door body inside the door body. Things are known. The outer reinforcing member is attached to the outer panel of the door body, and the inner reinforcing member is attached to the inner panel of the door body.
Further, by arranging the outer reinforcing member and the inner reinforcing member at a predetermined interval in the vehicle width direction, the window glass is arranged so as to be movable up and down between both the reinforcing members. Further, the outer reinforcing member and the inner reinforcing member are connected at their front ends by hinge reinforcing members (see, for example, Patent Document 1).

  As described above, the front end portions of the outer reinforcing member and the inner reinforcing member are connected to the reinforcing member, so that the impact load input from the front of the vehicle to the front end portion of the door body can be received by the outer reinforcing member and the inner reinforcing member. become.

JP 2007-216831 A

However, in the vehicle door of Patent Document 1, only the front end portions of the outer reinforcing member and the inner reinforcing member are connected by the reinforcing member, and the rear end portions of both the reinforcing members are not connected by the connecting member. Therefore, when an impact load is input to the front end portion of the door body, it is conceivable that the rear end portions of both the reinforcing members move in a direction away from or closer to the vehicle width direction due to the input impact load.
For this reason, it is difficult to efficiently transmit the impact load input to the front end portion of the door body to the vehicle body (for example, center pillar or rear pillar) through the outer reinforcing member and the inner reinforcing member.

Further, the rear end portions of the two reinforcing members are moved away from or closer to each other in the vehicle width direction by the impact load input to the front end portion of the door body, so that only the rear end portion of one reinforcing member is the vehicle body. It is conceivable to contact (particularly a highly rigid part such as a reinforcing member).
For this reason, the impact load input to the front end portion of the door body is concentrated on one reinforcing member, and the one reinforcing member may not be able to support the impact load.

  Further, since the rear end portions of the outer reinforcing member and the inner reinforcing member are not connected by the connecting member, when the impact load is input to the side wall of the door body from the side of the vehicle, the rear end portion of the outer reinforcing member is It is conceivable that the outer reinforcing member is bent by moving to. For this reason, it is conceivable that the door body (that is, the vehicle door) is deformed by the input impact load.

  The present invention provides a vehicle door that can efficiently transmit an impact load input to the door body to the vehicle body through both the outer reinforcement member and the inner reinforcement member, and further suppress deformation of the door body. This is the issue.

  According to a first aspect of the present invention, a closed section is formed by an inner panel and an outer panel, and a door body that opens and closes a door opening of a vehicle body is provided on the inner panel so as to extend along a belt line of the door body. A vehicle door comprising: an inner reinforcing member formed on the outer panel and disposed on an outer side in the vehicle width direction of the inner reinforcing member and provided along the belt line. A front connecting member that connects a front portion of the inner reinforcing member and a front portion of the outer reinforcing member inside the door main body; and a rear portion of the inner reinforcing member and the outer reinforcing member inside the door main body. And a rear connecting member for connecting the rear portions of the members.

  According to a second aspect of the present invention, the door body includes a door rear wall facing the rear portion of the door opening in the vehicle front-rear direction and extending in the vehicle width direction, and the rear connecting member is overlapped with the door rear wall. And a rear connecting wall attached in a state of being attached.

  According to a third aspect of the present invention, the door body includes a door front wall facing the front portion of the door opening in the vehicle front-rear direction and extending in the vehicle width direction, and the front connecting member is provided on the door front wall. It is characterized by comprising a front connecting wall that is attached in a superposed state.

  According to a fourth aspect of the present invention, the door main body is opposed to the front portion of the door opening portion in the vehicle width direction and extends in the vehicle front-rear direction, and the front door extension portion extends in the vehicle width direction. A door rear extension portion facing and extending in the vehicle front-rear direction, and the outer reinforcing member is provided at the front portion and connected to the door front extension portion; An outer rear extension portion provided at the rear portion and connected to the door rear extension portion.

  According to a fifth aspect of the present invention, the door main body includes a glass opening formed by separating the upper flange of the inner panel and the upper flange of the outer panel in the vehicle width direction, and the outer reinforcing member includes the outer panel. A flange reinforcing member attached to the upper flange; and a beam member connected to the flange reinforcing member and having the outer front extending portion and the outer rear extending portion.

Here, the member that supports the impact load input from the side of the vehicle is required to have high rigidity, and it is necessary to ensure a large wall thickness. For this reason, if the wall thickness dimension of an outer reinforcement member is ensured large as a whole, the weight of an outer reinforcement member will increase.
Therefore, in claim 5, the outer reinforcing member is provided with another member of the flange reinforcing member and the beam member, and the outer reinforcing member is constituted by two members.

  According to a sixth aspect of the present invention, a closed cross section extending in the vehicle front-rear direction is formed by the flange reinforcing member and the beam member.

  According to a seventh aspect of the present invention, at least one of the connection between the front portion of the flange reinforcing member and the outer front extending portion and the connection between the rear portion of the flange reinforcing member and the outer rear extending portion is connected to the separated state via the separating portion. And at least one of the front connection member and the rear connection member is connected to the spaced-apart portion.

Here, inside the door body, a front window frame or the like is provided on the front side of the vehicle, and a rear window frame or the like is provided on the rear side of the vehicle. For this reason, it is necessary to form the front space which provides a front window frame etc., and the rear space which provides a rear window frame etc. inside a door main body.
Accordingly, in claim 7, at least one of the connection of the front portion of the flange reinforcing member and the outer front extending portion and the connection of the rear portion of the flange reinforcing member and the outer rear extending portion is connected to the separated state via the separating portion. Thereby, a front space and a rear space can be formed inside the door body.

In the invention which concerns on Claim 1, the front part of the inner reinforcement member and the outer reinforcement member were extended along the belt line of the door main body. Moreover, the front part of the inner reinforcing member and the front part of the outer reinforcing member were connected by a front connecting member. Furthermore, the rear part of the inner reinforcing member and the rear part of the outer reinforcing member were connected by a rear connecting member.
Therefore, when an impact load is input from the front portion of the door opening to the front portion (door front wall) of the door body, the outer reinforcement member and the inner reinforcement member are separated from each other in the vehicle width direction by the input impact load. It can suppress moving to a direction or the direction which approaches.

  Thereby, the impact load input to the front part of the door body can be suitably transmitted to the vehicle rear side along the belt line through both the outer reinforcing member and the inner reinforcing member. Furthermore, the impact load transmitted to both the outer reinforcing member and the inner reinforcing member can be efficiently transmitted to the rear portion of the door opening through both the reinforcing members.

By the way, when the impact load is input to the side wall of the door body from the side of the vehicle, the outer reinforcement member is bent by the input impact load so that the front portion and the rear portion of the outer reinforcement member are close to each other in the vehicle longitudinal direction. It is possible to deform.
That is, it is conceivable that the front part of the outer reinforcing member moves to the rear of the vehicle and the rear part of the outer reinforcing member moves to the front of the vehicle by the input impact load.

Here, the front part of an outer reinforcement member and an inner reinforcement member is connected with the front connection member, and the rear part of the outer reinforcement member and the inner reinforcement member is connected with the rear connection member.
Therefore, it is possible to suppress the movement of the front part of the outer reinforcement member toward the rear of the vehicle at the front part of the inner reinforcement member, and to suppress the movement of the rear part of the outer reinforcement member toward the front of the vehicle at the rear part of the inner reinforcement member.
That is, it is possible to suppress the inner reinforcing member from deforming the front portion and the rear portion of the outer reinforcing member so as to approach each other in the vehicle front-rear direction. Thereby, bending of the outer reinforcement member due to an impact load input from the side of the vehicle can be suppressed, and deformation of the door body (that is, the vehicle door) can be suppressed.

  In the invention which concerns on Claim 2, the door main body was provided with the door rear wall, and the door rear wall was made to oppose the rear part of a door opening part in the vehicle front-back direction. Moreover, the rear connection member was provided with a rear connection wall, and the rear connection wall was attached in a state of being superimposed on the door rear wall. Here, the rear part of the inner reinforcing member and the rear part of the outer reinforcing member are connected to the rear connecting member.

  Therefore, the rear part of the inner reinforcing member and the outer reinforcing member is connected to the door rear wall via the rear connecting wall so as to be overlapped from the vehicle front side. As a result, the impact load input to the front portion of the door main body is passed through both the outer reinforcing member and the inner reinforcing member before the door main body is deformed (that is, without waiting for deformation of the door main body). Can communicate quickly to the rear.

  In the invention which concerns on Claim 3, the door main body was provided with the door front wall, and the door front wall was made to oppose the front part of a door opening part in the vehicle front-back direction. Moreover, the front connection member was provided with a front connection wall, and the front connection wall was attached in a state of being superimposed on the door front wall. Here, the front part of the inner reinforcing member and the front part of the outer reinforcing member are connected to the front connecting member.

  Therefore, the front part of the inner reinforcing member and the outer reinforcing member is connected to the door front wall via the front connecting wall so as to be overlapped from the vehicle rear side. Thus, the impact load input to the door front wall (front portion) of the door body can be quickly applied to the outer reinforcement member and the inner reinforcement member before the door body is deformed (that is, without waiting for the deformation of the door body). I can tell you.

  In the invention which concerns on Claim 4, the door front extension part of the door main body was made to oppose the front part of a door opening part in a vehicle width direction, and the outer front extension part of the outer reinforcement member was connected to the door front extension part. . Further, the rear door extension of the door body is opposed to the rear of the door opening in the vehicle width direction, and the rear rear extension is connected to the rear door extension.

  Therefore, when an impact load is input to the side wall of the door body from the side of the vehicle, the input impact load is transmitted to the outer front extending portion and the outer rear extending portion via the outer reinforcing member. The impact load transmitted to the outer front extending portion is supported by the front portion of the door opening through the door front extending portion. Furthermore, the impact load transmitted to the outer extension part is supported by the rear part of the door opening part through the door extension part.

  As a result, the outer reinforcing member can also be used as a member (so-called beam member) that supports the impact load input from the side of the vehicle. Therefore, it is not necessary to separately provide a dedicated beam member to support the impact load input from the side of the vehicle, and the number of parts can be reduced.

In the invention which concerns on Claim 5, the outer reinforcement member was provided with another member of a flange reinforcement member and a beam member, and the outer reinforcement member was comprised by 2 members. Therefore, the thickness dimension of the beam member can be increased, and the thickness dimension of the flange reinforcing member can be reduced.
By increasing the thickness of the beam member, the rigidity of the beam member can be increased. The beam member has an outer front extending portion and an outer rear extending portion. The outer front extending portion and the outer rear extending portion are respectively connected to the door front extending portion and the door rear extending portion. Thereby, the impact load input from the side of the vehicle can be suitably supported by the beam member.

  Further, the thickness of the flange reinforcing member is kept small. Thus, the weight of the outer reinforcing member can be kept low by configuring the outer reinforcing member with two members and varying the thickness of each member.

  In the invention which concerns on Claim 6, the closed cross section was formed with the flange reinforcement member and beam member of the outer reinforcement member, and this closed cross section was extended in the vehicle front-back direction. Thereby, the rigidity of an outer reinforcement member can be improved and the impact load input from the vehicle front or the vehicle side can be suitably supported by an outer reinforcement member.

  In the invention according to claim 7, at least one of the connection of the front part of the flange reinforcing member and the outer front extension part and the connection of the rear part of the flange reinforcing member and the outer rear extension part is connected to the separated state via the separation part. . Thereby, the front space which arrange | positions a front window frame etc. in the inside of a door main body, and the rear space which arrange | positions a rear window frame etc. can be formed.

  Furthermore, at least one of the front connection member and the rear connection member was connected to the separation portion. Accordingly, the separation portion can be reinforced by at least one of the front connection member and the rear connection member to increase the rigidity of the separation portion. Thereby, when the impact load is input to the side wall of the door body from the side of the vehicle, the deformation of the outer reinforcing member due to the input impact load can be suppressed.

It is a side view which shows the vehicle provided with the vehicle door which concerns on this invention. FIG. 2 is a sectional view taken along line 2-2 of FIG. FIG. 3 is a three-part enlarged view of FIG. 2. FIG. 3 is an enlarged view of part 4 of FIG. 2. It is sectional drawing which shows the state which decomposed | disassembled the vehicle door of FIG. 2 from the vehicle body. It is a side view which shows the state which decomposed | disassembled the outer panel from the door main body of FIG. It is sectional drawing which shows the state which fractured | ruptured the door main body of FIG. FIG. 6 is an enlarged view of 8 parts in FIG. 5. FIG. 6 is an enlarged view of 9 parts in FIG. 5. It is a side view which shows the door reinforcement member of FIG. It is 11 arrow line view of FIG. It is a figure explaining the example which transmits the impact load input from the vehicle front with the door reinforcement member which concerns on this invention to the rear part of a door opening part. It is a figure explaining the example which transmits the impact load input from the vehicle front with the door reinforcement member which concerns on this invention to the rear part of a door opening part rapidly before a deformation | transformation of a door main body. It is a figure explaining the example which supports the impact load input from the vehicle side with the outer reinforcement member which concerns on this invention.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. Note that “front (Fr)”, “rear (Rr)”, “left (L)”, and “right (R)” follow the direction seen from the driver.

The vehicle door 20 according to the embodiment will be described.
As shown in FIGS. 1 and 2, the vehicle 10 includes an outer side panel 12 that forms an outer wall of the vehicle body 11, a door opening portion 14 that is formed of the outer side panel 12 and the frame material of the vehicle body 11, and a door opening. Vehicle door 20 attached to part 14 so that opening and closing is possible.

  The door opening 14 is an opening that is formed in a side portion of the vehicle body 11 and communicates with the passenger compartment 27 and is mainly used for raising and lowering a passenger. The door opening 14 includes a lower portion 15 formed by the side sill 22, a front portion 16 formed by the front pillar 23, a rear portion 17 formed by the rear pillar 24 and the outer side panel 12, and an upper portion formed by the roof rail 25. 18 is opened in a substantially rectangular shape.

  As shown in FIG. 3, the front portion 16 of the door opening 14 includes a pillar rear wall 31 of the front pillar 23 and a hinge member 33 attached to the front pillar 23. The hinge member 33 includes a hinge base 34 attached to the pillar outer wall 32 of the front pillar 23 with bolts 35 and nuts 36, and a door bracket 38 rotatably connected to the hinge base 34 via a support shaft 37. .

A door attachment portion 38 a of the door bracket 38 is attached to a door front wall (front portion) 64 of the door body 51 of the vehicle door 20 with a bolt 41 and a nut 42. Therefore, the vehicle door 20 is attached to the door opening 14 via the hinge member 33 so as to be freely opened and closed.
In this state, the door mounting portion 38a of the hinge member 33 is disposed in a state of being opposed to the door front wall 64 of the door body 51 (specifically, a state in which the door mounting portion 38a is in contact).

  As shown in FIG. 4, the rear portion 17 of the door opening 14 includes a pillar front wall 44 and a pillar outer wall 45 of the rear pillar 24, and the rear wall 13 of the outer side panel 12. A rear portion 17 of the door opening 14 is covered with a decorative garnish 46.

  As shown in FIGS. 5 and 6, the vehicle door 20 includes a door main body 51 connected to the door opening 14 via a hinge member 33 so as to be opened and closed, and a door reinforcement provided in an interior 52 of the door main body 51. The member 53 and the side window glass 54 (refer FIG. 1) provided in the door main body 51 so that raising / lowering were possible were included.

The door body 51 has a glass opening formed between the inner panel 56 and the outer panel 57, the inner panel 56 facing the vehicle compartment 27, the outer panel 57 facing the vehicle exterior 28, and the door opening 14 being closed. A portion 58 is provided.
As an example, the outer peripheral edges of the inner panel 56 and the outer panel 57 are joined by hemming, so that the door main body 51 is formed in the closed section 59 by the inner panel 56 and the outer panel 57.

As shown in FIG. 7, an upper flange (upper edge portion) 56 a is formed on the upper portion of the inner panel 56, and an upper flange (upper edge portion) 57 a is formed on the upper portion of the outer panel 57. A belt line 61 (see also FIG. 1) is formed by the upper flange 56a of the inner panel 56 and the upper flange 57a of the outer panel 57.
The upper flange 56a of the inner panel 56 and the upper flange 57a of the outer panel 57 are spaced apart from each other at a predetermined interval L1 in the vehicle width direction. Therefore, a glass opening 58 is formed between both the upper flanges 56a and 57a, and the side window glass 54 (see FIG. 1) is disposed in the glass opening 58.

Returning to FIG. 5, the inner panel 56 includes an inner panel body 63 facing the vehicle compartment 27, a door front wall 64 provided at the front end 63 a of the inner panel body 63, and a door provided on the door front wall 64. It has a front extension 65, a door rear wall 66 provided on the inner panel main body 63, and a door rear extension 67 provided on the door rear wall 66.
The inner panel body 63 is formed in a flat plate shape in the vehicle front-rear direction so as to face the vehicle compartment 27 side.

As shown in FIG. 8, the door front wall 64 is bent outward from the front end 63a of the inner panel body 63 in the vehicle width direction and extends in the vehicle width direction.
The door front wall 64 is disposed in front of the door opening 14 so as to face the front portion 16 of the door opening 14 (specifically, the pillar rear wall 31 and the door mounting portion 38a of the hinge member 33) in the vehicle front-rear direction. It is arranged on the vehicle rear side from the portion 16. In particular, the door front wall 64 is in contact with the door mounting portion 38a of the hinge member 33 (see also FIG. 3).

The outer end 64a of the door front wall 64 is disposed on the outer side in the vehicle width direction from the door mounting portion 38a, and the door front extending portion 65 is bent forward of the vehicle from the outer end 64a of the door front wall 64. The door front extending portion 65 is provided at the outer end 64a of the door front wall 64 and extends in the vehicle front-rear direction.
Therefore, the door front extending portion 65 is disposed so as to face the door mounting portion 38a in the vehicle width direction outside the front portion 16 (specifically, the door mounting portion 38a) of the door opening portion 14 in the vehicle width direction. (See also FIG. 3).

The front portion 57b of the outer panel 57 is overlapped with the door front extending portion 65 from the outside in the vehicle width direction, and the front end 57c of the front portion 57b is joined to the front end 65a of the door front extending portion 65 by hemming.
A front gap 71 is formed between the door front extending portion 65 and the front portion 57 b of the outer panel 57. The front outer extension 82 b of the door reinforcing member 53 is disposed in the front gap 71, and the outer front extension 82 b is joined to the door front extension 65.

  As shown in FIG. 9, the door rear wall 66 is bent outward from the rear end 63b of the inner panel body 63 in the vehicle width direction and extends in the vehicle width direction. The door rear wall 66 is disposed on the vehicle front side from the rear portion 17 of the door opening 14 so as to face the rear portion 17 (particularly, the pillar front wall 44) of the door opening 14 in the vehicle front-rear direction (see FIG. (See also 4).

An outer end 66a of the door rear wall 66 is disposed on the outer side in the vehicle width direction from the pillar front wall 44, and a door rear extension 67 is bent from the outer end 66a of the door rear wall 66 to the rear of the vehicle. The door rear extension 67 is provided at the outer end 66a of the door rear wall 66 and extends in the vehicle front-rear direction.
Therefore, the door rear extension 67 is disposed on the outer side in the vehicle width direction from the rear portion 17 (specifically, the pillar front wall 44 and the pillar outer wall 45) of the door opening 14, and the vehicle width with respect to the rear portion 17. It arrange | positions so that it may oppose in a direction (refer also FIG. 4).

A rear portion 57d of the outer panel 57 is disposed outside the door rear extension portion 67 in the vehicle width direction, and a rear end 57e of the rear portion 57d is joined to a rear end 67a of the door rear extension portion 67 by hemming.
A rear gap 72 is formed between the door rear extension 67 and the rear portion 57 d of the outer panel 57. An outer rear extension 82 d of the door reinforcing member 53 is disposed in the rear gap 72, and the outer rear extension 82 d is joined to the door rear extension 67 via the outer rear connection piece 97 of the rear connection member 77. .

Returning to FIG. 5, a door reinforcing member 53 is provided in the interior 52 of the door body 51.
The door reinforcing member 53 includes an inner reinforcing member 74 provided on the inner panel 56, an outer reinforcing member 75 provided on the outer panel 57, and a front connecting member that connects the front portions of the inner reinforcing member 74 and the outer reinforcing member 75. 76 (see also FIG. 8) and a rear connecting member 77 (see also FIG. 9) for connecting the rear portions of the inner reinforcing member 74 and the outer reinforcing member 75.

As shown in FIGS. 7 and 10, the inner reinforcing member 74 is formed in a substantially rectangular shape in side view so as to extend in the vehicle front-rear direction at the upper portion 74 a, the lower portion 74 b, the front portion 74 c, and the rear portion 74 d. The inner reinforcing member 74 is disposed in the interior 52 of the door body 51 by providing an upper portion 74 a on the inner surface of the upper flange 56 a of the inner panel 56.
Therefore, the upper portion 74 a of the inner reinforcing member 74 extends in the vehicle front-rear direction along the belt line 61 of the door body 51. Thereby, a portion of the inner panel 56 corresponding to the belt line 61 of the door body 51 is reinforced by the inner reinforcing member 74.

As shown in FIGS. 7 and 11, the outer reinforcing member 75 is provided on the inner surface of the upper flange 57 a of the outer panel 57 in the interior 52 of the door body 51. Therefore, a predetermined interval L <b> 2 is formed between the outer reinforcing member 75 and the inner reinforcing member 74.
The outer reinforcing member 75 includes a flange reinforcing member 81 attached to the upper flange 57a of the outer panel 57, and a beam member 82 joined to the flange reinforcing member 81 from the outside in the vehicle width direction.

  The flange reinforcing member 81 is formed in a substantially rectangular shape so as to extend in the vehicle front-rear direction at the upper part 81a, the lower part 81b, the front part 81c, and the rear part 81d, similar to the inner reinforcing member 74 (see also FIG. 10). The flange reinforcing member 81 is disposed in the interior 52 of the door body 51 by providing an upper portion 81 a on the inner surface of the upper flange 57 a of the outer panel 57.

Therefore, the upper part 81 a of the flange reinforcing member 81 extends in the vehicle front-rear direction along the belt line 61 of the door body 51. Accordingly, a portion of the outer panel 57 corresponding to the belt line 61 of the door body 51 is reinforced by the flange reinforcing member 81 (that is, the outer reinforcing member 75).
Further, the inner reinforcing member 74 and the flange reinforcing member 81 are extended in the vehicle front-rear direction along the belt line 61 of the door body 51, so that the door reinforcing member 53 is extended in the vehicle front-rear direction along the belt line 61. (See also FIG. 1).

  A beam member 82 is joined to the flange reinforcing member 81 from the outside in the vehicle width direction. The beam member 82 includes a bending portion 83 bulging outward in the vehicle width direction, an upper beam flange 84 bent upward from the upper end 83a of the bending portion 83, and a lower portion bent downward from the lower end 83b of the bending portion 83. And a beam flange 85.

The beam member 82 is joined to the flange reinforcing member 81 by joining the upper beam flange 84 and the lower beam flange 85 to the flange reinforcing member 81 from the outside in the vehicle width direction. Thereby, a closed cross section 87 is formed in the outer reinforcing member 75 by the flange reinforcing member 81 and the beam member 82.
The closed cross section 87 extends in the vehicle front-rear direction along the belt line 61 of the door body 51. Thereby, the rigidity of the outer reinforcing member 75 is enhanced, and the impact load F1 input from the front of the vehicle or the side of the vehicle is suitably supported by the outer reinforcing member 75.

Further, the beam member 82 includes an outer front extension portion 82b formed at the front end portion of the front portion 82a, a front separation portion 82c connected to the rear end of the outer front extension portion 82b, and an outer portion formed at the rear portion. It has a rear extension part 82d and a rear separation part 82e connected to the front end of the outer rear extension part 82d. A front portion 82f (see also FIG. 8) of the front separation portion 82c is formed at the rear end portion of the front portion 82a.
In addition, in an Example, the outer extension part 82d shows the state currently formed in the same site | part as the rear part of the beam member 82. FIG. Here, the outer rear extending portion 82d can be formed by a part (for example, a rear end portion) of the rear portion of the beam member 82, similarly to the outer front extending portion 82b.

As shown in FIG. 8, the outer front extension portion 82 b is disposed in the front gap 71 between the door front extension portion 65 and the front portion 57 b of the outer panel 57, and is connected by being joined to the door front extension portion 65. Has been.
The front separating portion 82c extends from the rear end of the outer front extending portion 82b to the front portion 81c of the flange reinforcing member 81 toward the rear of the vehicle.

As shown in FIG. 9, the outer rear extension portion 82 d is disposed in the rear gap 72 between the door rear extension portion 67 and the rear portion 57 d of the outer panel 57. The outer rear extending portion 82 d is connected to the door rear extending portion 67 by being joined to the door rear extending portion 67 via the outer rear connecting piece 97 of the rear connecting member 77.
The rear separation portion 82e extends from the front end of the outer rear extension portion 82d to the rear portion 81d of the flange reinforcing member 81 toward the front of the vehicle.

Here, as shown in FIGS. 3 and 4, the door front extending portion 65 is opposed to the front portion 16 (particularly, the door bracket 38) of the door opening portion 14 in the vehicle width direction, and the door rear extending portion 67 is formed. The door opening 14 is opposed to the rear portion 17 (particularly, the pillar front wall 44 and the pillar outer wall 45) in the vehicle width direction. Therefore, the impact load F2 input to the outer wall (outer panel 57) of the door body 51 from the side of the vehicle passes through the outer reinforcing member 75 as the impact loads F3 and F4 to the outer front extension 82b and the outer rear extension 82d. Reportedly.
The impact load F3 transmitted to the outer front extension 82b is supported by the front portion 16 (door bracket 38) of the door opening 14, and the impact load F4 transmitted to the outer rear extension 82d is applied to the door opening 14. It is supported by the rear portion 17 (the pillar front wall 44 and the pillar outer wall 45).

  Thereby, the outer reinforcement member 75 can be used also as a member (so-called beam member) that supports the impact load F2 input from the side of the vehicle. Therefore, it is not necessary to separately provide a dedicated beam member to support the impact load F2 input from the side of the vehicle, and the number of parts can be reduced.

Further, the member that supports the impact load F2 input from the side of the vehicle is required to have high rigidity, and it is necessary to ensure a large wall thickness. For this reason, if the overall thickness of the outer reinforcing member 75 is ensured to be large, the weight of the outer reinforcing member 75 will increase.
Therefore, the outer reinforcing member 75 is provided with separate members of the flange reinforcing member 81 and the beam member 82, and the outer reinforcing member 75 is constituted by two members 81 and 82.

Therefore, the wall thickness T1 of the beam member 82 can be increased, and the wall thickness T2 of the flange reinforcing member 81 can be kept small. By increasing the thickness T1 of the beam member 82, the rigidity of the beam member 82 can be increased. The beam member 82 has an outer front extending portion 82b and an outer rear extending portion 82d.
The outer front extending portion 82b and the outer rear extending portion 82d are connected to the door front extending portion 65 and the door rear extending portion 67, respectively. Thereby, the impact load F2 input from the side of the vehicle can be suitably supported by the beam member 82.

Further, the thickness T2 of the flange reinforcing member 81 is kept small. That is, by configuring the outer reinforcing member 75 with the two members 81 and 82, the thickness T2 of the flange reinforcing member 81 can be suppressed smaller than the thickness T1 of the beam member 82.
As a result, the weight of the vehicle reinforcing door 75 can be reduced while reducing the weight of the outer reinforcing member 75.

As shown in FIGS. 8 and 11, the front portion 74 c of the inner reinforcing member 74 and the front portion 82 a of the beam member 82 (that is, the front portion of the outer reinforcing member 75) are connected by a front connecting member 76.
The front connection member 76 is disposed in the interior 52 of the door main body 51 and is attached to the door front wall 64, and an inner front connection piece 92 that is bent rearward from the inner end 91a of the front connection wall 91. And an outer front connecting piece 93 bent from the outer end 91b of the front connecting wall 91 to the rear of the vehicle. The front connection wall 91, the inner front connection piece 92, and the outer front connection piece 93 form a front connection member 76 in a substantially U shape in plan view.

The front connection wall 91 has a front connection portion 91 c formed flat along the door front wall 64. The front connection portion 91c is attached to the door front wall 64 by a bolt 41 and a nut 42 together with the door bracket 38 of the hinge member 33 in a state where the front connection portion 91c is overlapped from the inside 52 side of the door main body 51 (see also FIG. 3).
The inner front connection piece 92 is joined to the front portion 74 c of the inner reinforcing member 74 from the inner side in the vehicle width direction, and is disposed along the front portion 63 c of the inner panel main body 63.

The outer front connecting piece 93 is bent rearward from the outer end 91b of the front connecting wall 91 along the rear end portion of the front portion 82a of the beam member 82 (that is, the front portion 82f of the front separating portion 82c). . The outer front connecting piece 93 is joined to the rear end portion (front portion 82f) of the front portion 82a from the inner side in the vehicle width direction.
The inner front connecting piece 92 is joined to the front portion 74c of the inner reinforcing member 74, and the outer front connecting piece 93 is joined to the rear end portion (front portion 82f) of the front portion 82a. 74 c and the front part 82 a of the beam member 82 are connected by a front connecting member 76.

As shown in FIGS. 9 and 11, the rear portion 74 d of the inner reinforcing member 74 and the outer rear extending portion 82 d of the beam member 82 (that is, the rear portion of the outer reinforcing member 75) are connected by a rear connecting member 77.
The rear connection member 77 is disposed in the interior 52 of the door body 51 and is attached to the door rear wall 66. The rear connection wall 95 is an inner rear connection piece 96 that is bent forward from the inner end 95a of the rear connection wall 95. And an outer rear connecting piece 97 bent rearward from the outer end 95b of the front connecting wall 91. The rear connecting wall 95, the inner rear connecting piece 96, and the outer rear connecting piece 97 form a rear connecting member 77 in a substantially crank shape in plan view.

The rear connection wall 95 is attached to the door rear wall 66 in a state of being overlapped from the inside 52 side of the door main body 51.
The inner rear connecting piece 96 is joined to the rear portion 74 d of the inner reinforcing member 74 from the inner side in the vehicle width direction, and is disposed along the rear portion 63 d of the inner panel main body 63.

The outer rear connecting piece 97 is bent from the outer end 95 b of the rear connecting wall 95 along the rear rear extending portion 82 d of the beam member 82 and the door rear extending portion 67 of the inner panel 56 toward the rear of the vehicle.
The outer rear connecting piece 97 is joined to the outer rear extending portion 82d of the beam member 82 from the inner side in the vehicle width direction, and is joined to the door rear extending portion 67 from the outer side in the vehicle width direction. That is, the outer rear connecting piece 97 is sandwiched between the outer rear extending portion 82 d and the door rear extending portion 67.
The inner rear connecting piece 96 is joined to the rear portion 74d of the inner reinforcing member 74, and the outer rear connecting piece 97 is joined to the outer rear extending portion 82d of the beam member 82, so that the rear portion 74d and the beam member of the inner reinforcing member 74 are joined. The outer rear extending portion 82 d of 82 is connected by a rear connecting member 77.

As shown in FIG. 3, the front portion 74 c of the inner reinforcing member 74 and the front portion 82 a of the beam member 82 are connected by a front connecting member 76. Further, as shown in FIG. 4, the rear portion 74 d of the inner reinforcing member 74 and the outer rear extending portion 82 d of the beam member 82 are connected by a rear connecting member 77.
Therefore, as shown in FIG. 2, the outer reinforcing member 75 and the inner reinforcing member 74 are driven in the vehicle width by the impact load F5 input from the front part 16 of the door opening 14 to the door front wall 64 (front part) of the door body 51. It is suppressed that it moves to the direction which mutually leaves | separates with respect to a direction, or the direction which approaches.
Thereby, the impact load F5 entered the door front wall 64 of the door body 51 is suitably communicated to the rear of the vehicle along the belt line 61 through both members 75, 74 of the outer reinforcing member 75 and the inner reinforcing member 74.

Further, as shown in FIG. 3, the door front wall 64 of the door body 51 is opposed to the front portion 16 of the door opening 14 in the vehicle front-rear direction, and the front connection wall 91 (specifically, the front connection member 76). Is attached in a state where the front connection portion 91c) is superimposed on the door front wall 64.
Here, the front part 74 c of the inner reinforcing member 74 and the front part 82 a of the outer reinforcing member 75 (specifically, the beam member 82) are connected by the front connecting member 76.

Therefore, the front portions 74c and 82a of the inner reinforcing member 74 and the outer reinforcing member 75 are connected to the door front wall 64 through the front connecting wall 91 so as to be overlapped from the vehicle rear side.
As a result, the impact load F5 input to the door front wall 64 of the door main body 51 is deformed before the door main body 51 is deformed (that is, without waiting for the deformation of the door main body 51), the outer reinforcing member 75 and the inner reinforcing member 74. The two members 75 and 74 are quickly transmitted.

  In addition, as shown in FIG. 4, the door rear wall 66 of the door body 51 is opposed to the rear portion 17 of the door opening 14 in the vehicle front-rear direction, and the rear connection wall 95 of the rear connection member 77 is the door rear wall 66. It is attached in a state where it is superimposed on. Here, the rear connecting member 77 is connected to the rear portion 74 d of the inner reinforcing member 74 and the outer rear extending portion 82 d (specifically, the rear portion of the beam member 82) of the outer reinforcing member 75.

Therefore, the rear portion 74d of the inner reinforcing member 74 and the outer rear extending portion 82d of the outer reinforcing member 75 are connected to the door rear wall 66 through the rear connecting wall 95 so as to be overlapped from the vehicle front side.
Thereby, the impact load F6 transmitted to the door body 51 through the door front wall 64 (see FIG. 2) of the door body 51 is not changed before the door body 51 is deformed (that is, without waiting for the door body 51 to be deformed). ), It is quickly transmitted to the rear portion 17 of the door opening 14 via both the outer reinforcing member 75 and the inner reinforcing member 74.

Returning to FIGS. 8 and 9, in the interior 52 of the door main body 51, a front window frame and the like are provided on the vehicle front side, and a rear window frame and the like are provided on the vehicle rear side. For this reason, it is necessary to form the front space 101 in which the front window frame and the like are provided, and the rear space 102 in which the rear window frame and the like are provided in the interior 52 of the door body 51.
Therefore, in order to form the front space 101 in the interior 52 of the door main body 51, the front portion 81c of the flange reinforcing member 81 is separated from the outer front extending portion 82b of the beam member 82 to the rear of the vehicle or inward in the vehicle width direction. Has been placed. Further, the front portion 81 c of the flange reinforcing member 81 is connected to the outer front extending portion 82 b via the front separating portion 82 c of the beam member 82.

Further, in order to form the rear space 102 in the interior 52 of the door body 51, the rear portion 81d of the flange reinforcing member 81 is disposed in a state of being separated from the outer rear extending portion 82d of the beam member 82 in the front of the vehicle or inward in the vehicle width direction. Has been. Further, the rear portion 81d of the flange reinforcing member 81 is connected to the outer rear extension portion 82d via the rear separation portion 82e of the beam member 82.
Thus, a front space 101 in which the front window frame and the like are arranged and a rear space 102 in which the rear window frame and the like are arranged are formed in the interior 52 of the door body 51.

Here, the distance L3 in the vehicle front-rear direction of the front separation portion 82c is greater than the distance L4 in the vehicle front-rear direction of the rear separation portion 82e. Therefore, the outer front connection piece 93 is connected to the front portion 82f of the front separation portion 82c by joining the outer front connection piece 93 of the front connection member 76 to the front portion 82f of the front separation portion 82c. Therefore, the front separation portion 82c is reinforced by the front connection member 76, and the rigidity of the front separation portion 82c is enhanced.
Thereby, when the impact load F7 is input to the side wall of the door body 51 from the side of the vehicle, the deformation of the front separation portion 82c (that is, the outer reinforcing member 75) due to the input impact load F7 can be suppressed.

Next, an example in which an impact load F8 input from the front of the vehicle 10 to the front portion 10a of the vehicle 10 is transmitted to the rear portion 17 of the door opening portion 14 through the door body 51 will be described with reference to FIGS.
As shown in FIG. 12A, an impact load F8 is input to the front portion 10a of the vehicle 10 from the front of the vehicle. A part of the input impact load F8 is input from the front portion 16 of the door opening 14 to the door front wall 64 of the door body 51 as the impact load F9.

As shown in FIG. 12B, the front part 74c of the inner reinforcing member 74 and the front part 82a of the beam member 82 are connected by the front connecting member 76, and the rear part 74d of the inner reinforcing member 74 and the rear part of the beam member 82 The extending portion 82 d is connected by the rear connecting member 77.
Accordingly, the outer reinforcing member 75 and the inner reinforcing member 74 are restrained from moving in a direction away from or closer to the vehicle width direction by the impact load F9 input to the door front wall 64 of the door body 51.

As a result, the impact load F9 input to the door front wall 64 of the door body 51 passes along the belt line 61 (see FIG. 12A) via both the outer reinforcing member 75 and the inner reinforcing member 74. Thus, it can be suitably transmitted to the rear of the vehicle as indicated by an arrow A.
Further, the impact load F9 transmitted to both the reinforcing members 75 and 74 of the outer reinforcing member 75 and the inner reinforcing member 74 is efficiently transmitted to the rear portion 17 of the door opening 14 through the both reinforcing members 75 and 74 as indicated by an arrow B. be able to.

As shown in FIG. 13 (a), the inner reinforcing member 74 and the front portions 74c and 82a of the outer reinforcing member 75 are overlapped with the door front wall 64 via the front connecting wall 91 of the front connecting member 76 from the vehicle rear side. Are connected to each other.
Therefore, before the door body 51 is deformed, the impact load F9 input to the door front wall 64 can be quickly transmitted to the outer reinforcing member 75 and the inner reinforcing member 74 as indicated by an arrow A.

As shown in FIG. 13 (b), the rear portion 74 d of the inner reinforcing member 74 and the outer rear extending portion 82 d of the outer reinforcing member 75 (beam member 82) are connected to the rear wall of the door via the rear connecting wall 95 of the rear connecting member 77. 66 is connected to the vehicle 66 from the vehicle front side.
Therefore, before the door main body 51 is deformed, the impact load F9 input to the door front wall 64 of the door main body 51 passes through the outer reinforcing member 75 and the inner reinforcing member 74 to the rear portion 17 of the door opening 14 as shown by an arrow B. Can tell.

Next, an example in which the impact load F10 input to the door body 51 of the vehicle 10 from the side of the vehicle is supported by the outer reinforcing member 75 will be described with reference to FIG.
As shown in FIG. 14A, an impact load F10 is input to the side wall of the door body 51 from the side of the vehicle. A part of the input impact load F10 is transmitted as the impact load F11 to the outer front extension 82b through the outer reinforcing member 75.
At the same time, the remaining load is transmitted as an impact load F12 to the post-outer extension 82d through the outer reinforcing member 75.

As shown in FIG. 14B, the outer front extending portion 82b is connected to the door front extending portion 65 in a state of being overlapped in the vehicle width direction. Furthermore, the door front extending portion 65 is opposed to the front portion 16 of the door opening portion 14 in the vehicle width direction.
Thereby, the impact load F11 transmitted to the outer front extending portion 82b can be supported by the front portion 16 of the door opening portion 14 via the door front extending portion 65.

As shown in FIG. 14 (c), the outer rear extending portion 82 d is connected to the door rear extending portion 67 through the outer rear connecting piece 97 of the rear connecting member 77 so as to be overlapped in the vehicle width direction. . Further, the rear door extending portion 67 is opposed to the rear portion 17 of the door opening 14 in the vehicle width direction.
Thereby, the impact load F12 transmitted to the outer rear extending portion 82d can be supported by the rear portion 17 of the door opening 14 via the outer rear connecting piece 97 and the door rear extending portion 67.

14A, when the impact load F10 is input to the side wall of the door body 51 from the side of the vehicle, the outer reinforcing member 75 is substantially directed inward in the vehicle width direction with the input impact load F10. It can be considered to be folded into a square shape or a substantially curved shape. In this case, the front portion of the outer reinforcing member 75 (specifically, the front portion 82a of the beam member 82) and the rear portion of the outer reinforcing member 75 (specifically, the outer rear extending portion 82d) are in the vehicle longitudinal direction. In FIG.
That is, it is conceivable that the front portion 82a of the outer reinforcing member 75 moves to the rear of the vehicle and the rear portion (outer rear extending portion 82d) of the outer reinforcing member 75 moves to the front of the vehicle with the input impact load F10.

Here, in the embodiment, the front portion 82 a of the outer reinforcing member 75 and the front portion 74 c of the inner reinforcing member 74 are connected by a front connecting member 76. Further, the rear portion of the outer reinforcing member 75 (outer rear extending portion 82 d) and the rear portion 74 d of the inner reinforcing member 74 are connected by a rear connecting member 77.
Therefore, the front portion 82a of the outer reinforcing member 75 can be prevented from moving rearward of the vehicle by the front portion 74c of the inner reinforcing member 74. Furthermore, the rear portion 74d of the inner reinforcing member 74 can suppress the rear portion of the outer reinforcing member 75 (outer rear extending portion 82d) from moving forward of the vehicle.

  Thus, the inner reinforcing member 74 can suppress the front portion 82a and the rear portion (outer rear extending portion 82d) of the outer reinforcing member 75 from being deformed so as to approach each other in the vehicle front-rear direction. Therefore, the outer reinforcement member 75 can be prevented from bending inward in the vehicle width direction due to the impact load F10 input from the side of the vehicle, and deformation of the door body 51 (ie, the vehicle door 20) can be suppressed.

In addition, the vehicle door according to the present invention is not limited to the above-described embodiment, and can be appropriately changed and improved.
For example, in the above-described embodiment, the example in which the front member 16 of the door opening 14 includes the hinge member 33 has been described. However, the present invention is not limited thereto, and the pillar rear wall 31 is bulged to the outer surface of the vehicle door 20 to form the pillar. It is also possible to form the front portion 16 of the door opening 14 only by the rear wall 31.

  Moreover, although the said Example demonstrated the example which formed the door front extension part 65 and the door rear extension part 67 by the inner panel 56, it is not restricted to this, The door front extension part 65 and door by the outer panel 57 were demonstrated. It is also possible to form the rear extension 67.

Furthermore, in the above-described embodiment, an example in which the outer front connection piece 93 (that is, the front connection member 76) is connected to the front separation portion 82c of the beam member 82 has been described. It is also possible to connect the outer rear connecting piece 97 (that is, the rear connecting member 77) to the spacing portion 82e.
It is also possible to connect the outer / rear connecting piece 97 (that is, the rear connecting member 77) only to the rear separating portion 82e of the beam member 82.

Furthermore, in the said Example, although the impact load F9 input into the door front wall 64 of the door main body 51 was transmitted to the rear part 17 of the door opening part 14 via the outer reinforcement member 75 and the inner reinforcement member 74, this was demonstrated. Without being limited thereto, it is also possible to transmit the impact load input to the door rear wall 66 of the door body 51 to the front portion 16 of the door opening portion 14 through both the reinforcing members 75 and 74.

  In addition, the vehicle, vehicle body, door opening, vehicle door, door body, inner panel, outer panel, glass opening, door front wall, door front extension, door rear wall, door rear extension shown in the above embodiment Examples of shapes and configurations of parts, inner reinforcing members, outer reinforcing members, front connecting members, rear connecting members, flange reinforcing members, beam members, front separating portions, outer rear extending portions, front connecting walls and rear connecting walls It is not limited to what was done and can be changed as appropriate.

  INDUSTRIAL APPLICATION This invention is suitable for the application to the motor vehicle provided with the door for vehicles provided with the inner reinforcement member in the inner panel of the door main body, and the outer reinforcement member in the outer panel.

DESCRIPTION OF SYMBOLS 10 Vehicle 11 Car body 14 Door opening part 16 Front part of door opening part 17 Rear part of door opening part 20 Vehicle door 51 Door main body 52 Inside of door main body 56 Inner panel 56a Upper flange of inner panel 57 Outer panel 57a Upper flange of outer panel 58 Glass opening 59 Closed cross section formed by inner panel and outer panel 61 Belt line 64 Door front wall 65 Door front extension 66 Door rear wall 67 Door rear extension 74 Inner reinforcement member 74c Inner reinforcement member front 74d Inner Rear portion of reinforcing member 75 Outer reinforcing member 76 Front connecting member 77 Rear connecting member 81 Flange reinforcing member 81c Front portion of flange reinforcing member 81d Rear portion of flange reinforcing member 82 Beam member 82a Front portion of outer reinforcing member (front portion of beam member) )
82b Outer front extension part 82c Front separation part (separation part)
82d Outer rear extension (rear part of beam member, rear part of outer reinforcement member)
87 Closed section formed by flange reinforcing member and beam member 91 Front connecting wall 95 Rear connecting wall

Claims (4)

A door body having a closed cross section formed by an inner panel and an outer panel, and opening and closing a door opening of the vehicle body;
An inner reinforcing member provided on the inner panel so as to extend along a belt line of the door body;
An outer reinforcing member disposed on the outer side of the inner reinforcing member in the vehicle width direction and provided on the outer panel so as to extend along the belt line, and a vehicle door comprising:
In the inside of the door body, a front connecting member that connects the front part of the inner reinforcing member and the front part of the outer reinforcing member;
In the inside of the door body, the rear connecting member that connects the rear portion of the inner reinforcing member and the rear portion of the outer reinforcing member, and
The door body is
A front door extension that faces the front of the door opening in the vehicle width direction and extends in the vehicle front-rear direction;
A door rear extension portion facing the rear portion of the door opening in the vehicle width direction and extending in the vehicle front-rear direction;
A glass opening formed by separating the upper flange of the inner panel and the upper flange of the outer panel in the vehicle width direction,
The outer reinforcing member is
An outer front extension connected to the door front extension;
An outer rear extension connected to the door rear extension;
A flange reinforcing member attached to the upper flange of the outer panel;
A beam member coupled to the flange reinforcing member and having the outer front extending portion and the outer rear extending portion;
At least one of the connection of the front part of the flange reinforcing member and the outer front extension part, the rear part of the flange reinforcement member and the connection of the outer rear extension part is connected in a separated state via a separation part,
At least one of the front connection member and the rear connection member is connected to the separation portion . The door body is provided with a door rear wall facing the rear portion of the door opening in the vehicle front-rear direction and extending in the vehicle width direction,
The vehicle door according to claim 1, wherein the rear connection member includes a rear connection wall attached in a state of being superimposed on the door rear wall. The door body includes a door front wall facing the front portion of the door opening in the vehicle front-rear direction and extending in the vehicle width direction,
The vehicle door according to claim 1, wherein the front connection member includes a front connection wall that is attached in a state of being superimposed on the door front wall. 4. The vehicle door according to claim 1, wherein the flange reinforcing member and the beam member form a closed cross section extending in the vehicle front-rear direction.

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