JP2014031081A - Vehicle door structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle door structure that has good looking door frames and can prevent deflection of a main frame when closing up a door glass.SOLUTION: A joint member 72 is inserted into hollow portions 22A and 24A formed respectively in a main frame 22 and a rear frame 24. This can prevent the joint member 72 from being exposed toward the surfaces (designing surfaces) of the main frame 22 and the rear frame 24 so that a door frame 18 can look good. The joint member 72 is provided on a facing part where the main frame 22 faces the rear frame 24, thereby improving strength and rigidity at the facing part where the main frame 22 faces the rear frame 24. This can prevent deflection of the main frame 22 when closing up a door glass 16.

Description

  The present invention relates to a vehicle door structure.

  In a vehicle door structure, for example, Patent Document 1 discloses a technique for fixing an abutting portion between an upper frame (main frame) and a rear side frame (vertical column frame) with a bracket. In this manner, by fixing the abutting portion between the upper frame and the rear side frame with the bracket, the upper frame is prevented from being bent with respect to the rear side frame due to the pushing-up input when the door glass is completely closed.

JP 2007-131053 A

  However, in this prior art, since the bracket covers the upper frame and the rear side frame from the outside, the bracket is exposed to the outside, and the appearance is poor.

  In view of the above facts, the present invention has an object to obtain a door structure for a vehicle that has a good appearance of the door frame and can suppress the deflection of the main frame when the door glass is fully closed.

  In order to achieve the above object, the vehicle door structure according to claim 1 constitutes an upper portion of the door frame and extends along the vehicle front-rear direction to support the upper end of the door glass. An L-shape is formed in a side view, and a frame, a hollow vertical column frame that forms a side portion of the door frame and extends in the vehicle vertical direction and supports a side end portion of the door glass. A joint member that is disposed at the abutting portion between the main frame and the vertical column frame, is inserted in a state straddling the main frame and the vertical column frame, and connects the main frame and the vertical column frame; Have.

  In the vehicle door structure according to the first aspect, the upper end portion of the door glass is supported by a hollow main frame that forms the upper portion of the door frame and extends along the vehicle front-rear direction. . Further, the side end portion of the door glass is supported by a hollow vertical column frame that constitutes a side portion of the door frame and extends along the vehicle vertical direction. Here, in the present invention, the joint member having an L shape in a side view is disposed at the abutting portion between the main frame and the vertical column frame, and the joint member straddles the main frame and the vertical column frame. It is inserted in a state and connects the main frame and the vertical column frame.

  Thus, since the joint member is inserted into the main frame and the vertical column frame, it can be prevented from being exposed to the surface (design surface) side of the main frame and the vertical column frame. Further, since the joint member is inserted into the main frame and the vertical column frame, the strength and rigidity at the abutting portion between the main frame and the vertical column frame are improved.

  A vehicle door structure according to a second aspect is the vehicle door structure according to the first aspect, wherein the main frame and the vertical column frame are formed by extrusion molding with a light metal.

  In the vehicle door structure according to claim 2, the main frame and the vertical column frame are formed by extrusion molding with light metal, so that the weight and cost can be reduced as compared with the case where the door frame is roll-formed with steel. Can be achieved.

  A vehicle door structure according to a third aspect is the vehicle door structure according to the first or second aspect, wherein the joint member is press-fitted into the main frame and the vertical column frame.

  In the vehicle door structure according to claim 3, the main frame and the vertical column frame can be integrated by press-fitting the joint member into the main frame and the vertical column frame. Productivity is improved as compared with the case where the frame is integrated by arc welding or the like.

  As described above, according to the vehicle door structure of the first aspect, the door frame has a good appearance, and the main frame can be prevented from being bent when the door glass is fully closed. Have

  According to the vehicle door structure of the second aspect, the door frame can be reduced in weight, and the door frame can be reduced in cost.

  According to the vehicle door structure of the third aspect, since the joint member is merely press-fitted into the main frame and the vertical column frame, there is an excellent effect that workability can be improved and cost can be reduced.

It is a disassembled perspective view which shows the principal part of the door frame to which the vehicle door structure which concerns on embodiment of this invention was applied. It is a perspective view which shows the principal part of the door frame to which the vehicle door structure which concerns on embodiment of this invention was applied. It is sectional drawing of the main frame which shows the state cut | disconnected along the 3-3 line of FIG. FIG. 4 is a cross-sectional view of the rear frame showing a state cut along line 4-4 in FIG. 2. 1 is a schematic side view showing a front side door to which a vehicle door structure according to an embodiment of the present invention is applied. (A) is the elements on larger scale for demonstrating the effect | action of the door frame to which the vehicle door structure which concerns on embodiment of this invention was applied, (B) shows the comparative example of (A). It is the elements on larger scale corresponding to. It is a combination figure showing an example, such as a material of a joint member provided in a door frame to which a door structure for vehicles concerning an embodiment of the invention is applied, and a manufacturing method.

  Hereinafter, a vehicle door structure according to an embodiment of the present invention will be described with reference to the drawings. In these drawings, an arrow FR appropriately shown indicates the vehicle front side, an arrow UP indicates the vehicle upper side, and an arrow OUT indicates the vehicle width direction outer side.

(Configuration of vehicle door structure)
The vehicle door structure according to the embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 5, the front side door 10 has a door outer panel 12 disposed on the outer side in the vehicle width direction, and a door inner panel 14 disposed on the inner side in the vehicle width direction of the door outer panel 12.

  The door outer panel 12 and the door inner panel 14 are coupled in a state where a closed cross section is formed, and a window regulator (not shown) is provided between the door outer panel 12 and the door inner panel 14. By this window regulator, the door glass 16 can be moved up and down between the door outer panel 12 and the door inner panel 14.

  A door frame 18 is provided on the upper portion of the door inner panel 14. The door frame 18 includes a front frame 20 located at the front part in the vehicle front-rear direction, a main frame 22 located at the upper part in the vehicle vertical direction, and a rear frame 24 as a vertical column frame located at the rear part in the vehicle front-rear direction. And it has an inverted U shape in which the vehicle vertical direction lower side (vehicle lower side) is opened.

  The front frame 20 and the rear frame 24 of the door frame 18 are attached to the door inner panel 14 via a bracket (not shown), and an opening is formed between the upper end portion of the door inner panel 14 (so-called belt line L). 26 is formed. The opening 26 is opened and closed by the up-and-down movement of the door glass 16.

(main frame)
Here, the main frame 22 will be described. The main frame 22 is formed by extrusion molding with an aluminum alloy, and as shown in FIGS. 1 and 3, a frame main body 30 having a hollow portion 22 </ b> A therein, and a vehicle main body direction of the frame main body 30. And a support part 34 having a flange part 32 arranged on the outside.

  The frame main body 30 has a trapezoidal shape in a cross-sectional shape along the vehicle vertical direction, and includes an upper wall portion 30A located at the upper part of the vehicle vertical direction, a lower wall part 30B located at the lower part of the vehicle vertical direction, and a vehicle width. The inner wall portion 30C is located on the inner side in the direction, and the outer wall portion 30D is located on the outer side in the vehicle width direction.

  Further, the outer wall portion 30D and the inner wall portion 30C in the frame main body portion 30 are formed along the vehicle vertical direction, and the lower wall portion 30B that connects the lower end portion of the outer wall portion 30D and the lower end portion of the inner wall portion 30C, It is formed along the vehicle width direction. The outer wall portion 30D is formed so as to be longer than the inner wall portion 30C, and the upper wall portion 30A that connects the upper end portion of the outer wall portion 30D and the upper end portion of the inner wall portion 30C is moved up and down as the vehicle moves toward the outer wall portion 30D. It is formed in a state inclined toward the upper side in the direction (the vehicle upper side).

  A locking piece 36 extends outward from the upper end of the inner wall 30C of the frame main body 30 so as to be substantially parallel to the upper wall 30A. On the base side of the locking piece 36, a reinforcing piece 38 is bridged between the upper wall portion 30A. Further, a locking claw 40 is projected from the upper end portion of the outer wall portion 30 </ b> D of the frame main body portion 30 so as to face the locking piece 36. A weather strip 42 (see FIG. 3) is attached to the frame main body 30 through the locking claws 40 and the locking pieces 36.

  The weather strip 42 is formed of a tube-like elastic material such as rubber, and in a cross-sectional shape along the vertical direction of the vehicle, the main body portion 42A has a circular shape and is stretched along a substantially tangential direction of the main body portion 42A. Leg portions 42B and 42C to be taken out are configured. The leg portions 42B and 42C are locked to the locking piece 36 and the locking claw 40, respectively. Note that the weather strip 42 is not shown in FIG.

  On the other hand, a support portion 34 is provided outside the frame body portion 30 in the vehicle width direction. In the support portion 34, a flange portion 32 that protrudes outward in the vehicle width direction is provided at the upper end portion of the locking claw 40. In the support portion 34, a locking recess 44 that is recessed toward the inner side in the vehicle width direction is formed on the outer side in the vehicle width direction of the outer wall portion 30 </ b> D shared with the frame main body portion 30. A locking projection 48 formed on the glass run 46 (see FIG. 3) can be locked in the locking recess 44.

  The glass run 46 is formed of an elastic material such as rubber, and includes a main body portion 50 that is attached to the support portion 34 in a U-shape having an opening at the vehicle lower side in a cross-sectional shape along the vehicle vertical direction. ing. Further, the glass run 46 is provided with a sandwiching portion 52 that sandwiches the flange portion 32 of the main frame 22 with the main body portion 50. For this reason, the locking projection 48 provided on the outer surface side of the main body 50 is locked to the locking recess 44 in a state where the main body 50 of the glass run 46 is mounted on the support 34. ing. Note that the glass run 46 is not shown in FIG.

  Further, a lip portion 50 </ b> A extends from the inner surface of the main body portion 50 of the glass run 46, and can be elastically pressed against the surface of the door glass 16. Accordingly, the door glass 16 is supported when the door glass 16 is raised and lowered, and the sealing performance of the door glass 16 is ensured when the door glass 16 is closed. Further, a pair of lip portions 54 extend from the upper wall 52A of the sandwiching portion 52 upward in the vehicle vertical direction, and the lip portions 54 are not shown when the front side door 10 (see FIG. 5) is closed. It comes in contact with the side outer panel.

(Rear frame)
Next, the rear frame 24 will be described. The rear frame 24 is formed by extrusion molding with an aluminum alloy, and as shown in FIGS. 1 and 4, a frame main body portion 56 having a hollow portion 24 </ b> A therein, and a vehicle width of the frame main body portion 56. And a support portion 58 provided on the outer side in the direction.

  The frame main body 56 has a trapezoidal shape in a cross-sectional shape along the vehicle longitudinal direction. The frame main body 56 includes a front wall portion 50A located at the front portion in the vehicle longitudinal direction, a rear wall portion 50B located at the rear portion in the vehicle longitudinal direction, an inner wall portion 50C located on the inner side in the vehicle width direction, and the vehicle width direction. And an outer wall portion 50D located outside.

  Further, the outer wall portion 50D and the inner wall portion 50C in the frame main body portion 56 are formed along the vehicle longitudinal direction, and the front wall portion 50A that connects the front end portion of the outer wall portion 50D and the front end portion of the inner wall portion 50C is: It is formed along the vehicle width direction. The outer wall portion 50D is formed to be longer than the inner wall portion 50C, and the rear wall portion 50B connecting the rear end portion of the outer wall portion 50D and the rear end portion of the inner wall portion 50C is directed toward the outer wall portion 50D. It is formed in a state inclined to the vehicle rear side.

  Further, a locking piece 60 extends from the rear end portion of the inner wall portion 50C of the frame main body portion 56 toward the outer side in the vehicle width direction so as to be substantially parallel to the rear wall portion 50B. A locking claw 62 projects from the rear end portion of the outer wall portion 50 </ b> D of the frame main body portion 56 so as to face the locking piece 60. The weather strip 42 is mounted on the locking claws 62 and the locking pieces 60 in a state where the weather strip 42 wraps around from the main frame 22, and the legs 42B and 42C of the weather strip 42 are locked.

  A support portion 58 is provided outside the frame body portion 56 in the vehicle width direction. The support portion 58 has a U-shaped cross-sectional shape along the vehicle front-rear direction, with the front side in the vehicle front-rear direction being an opening, and a U-shaped glass run 64 can be mounted in the support portion 58. It is said that. In the support portion 58, a locking recess 66 that is recessed toward the inside in the vehicle width direction is formed on the outer side in the vehicle width direction of the outer wall portion 50 </ b> D shared with the frame main body portion 56. A locking projection 68 formed on the glass run 64 can be locked to the locking recess 66, and the locking run 66 is locked to the locking recess 66 with the glass run 64 mounted in the support portion 58. The convex portion 68 is locked.

  A lip portion 64 </ b> A extends from the inner surface of the glass run 64, and can be elastically pressed against the surface of the door glass 16. Accordingly, the door glass 16 is supported when the door glass 16 is raised and lowered, and the sealing performance of the door glass 16 is ensured when the door glass 16 is closed.

  Further, a projecting portion 70 that projects rearward in the vehicle front-rear direction is provided from the rear end portion of the outer wall portion 58 </ b> A located on the outer side in the vehicle width direction of the support portion 58. When the door 10 (see FIG. 5) is closed, the peripheral edge of the door opening formed on the side outer panel (not shown) is covered.

(Joint member)
Next, the joint member 72 will be described. As shown in FIGS. 1 and 2, the joint member 72 is a member for connecting the main frame 22 and the rear frame 24. The joint member 72 is formed in a substantially L shape in a side view and is a solid shape formed by casting with an aluminum alloy.

  The joint member 72 includes an insertion portion 74 that is press-fitted into the hollow portion 22A of the main frame 22 at the rear end portion in the vehicle front-rear direction of the main frame 22, and a rear frame 24 upper end portion in the vehicle vertical direction of the rear frame 24. And an insertion portion 76 that is press-fitted into the hollow portion 24A. The joint member 72 can be disposed at the abutting portion 78 between the main frame 22 and the rear frame 24.

  As described above, the hollow portion 22A of the main frame 22 includes the upper wall portion 30A positioned at the upper portion in the vehicle vertical direction, the lower wall portion 30B positioned at the lower portion in the vehicle vertical direction, and the inner wall portion 30C positioned at the inner side in the vehicle width direction. And the outer wall part 30D located in the vehicle width direction outer side is comprised, and the trapezoid shape comprised is comprised.

  For this reason, the insertion portion 74 is provided with an upper wall surface 74A, a lower wall surface 74B, an inner wall surface 74C, and an outer wall surface 74D that face the upper wall portion 30A, the lower wall portion 30B, the inner wall portion 30C, and the outer wall portion 30D, respectively. Thus, the insertion portion 74 is formed in a trapezoidal shape.

  Further, the hollow portion 24A of the rear frame 24 includes a front wall portion 50A located at the front portion in the vehicle front-rear direction, a rear wall portion 50B located at the rear portion in the vehicle front-rear direction, and an inner wall portion 50C located inside the vehicle width direction, A trapezoidal shape including an outer wall portion 50D positioned on the outer side in the vehicle width direction.

  Therefore, the insertion portion 76 is provided with a front wall surface 76A, a rear wall surface 76B, an inner wall surface 76C, and an outer wall surface 76D that face the front wall portion 50A, the rear wall portion 50B, the inner wall portion 50C, and the outer wall portion 50D, respectively. Thus, the insertion portion 76 is formed in a trapezoidal shape.

  Then, in a state where the insertion portion 74 is press-fitted into the hollow portion 22A of the main frame 22 and the insertion portion 76 is press-fitted into the hollow portion 24A of the rear frame 24, the joint member 72 is pushed between the main frame 22 and the rear frame 24. It will be arrange | positioned at the contact part 78 (refer FIG. 5).

(Operation and effect of vehicle door structure)
As shown in FIG. 5, the joint member 72 is disposed at the abutting portion 78 between the main frame 22 and the rear frame 24. The insertion part 74 of the joint member 72 is press-fitted into the hollow part 22A of the main frame 22, and the insertion part 76 of the joint member 72 is press-fitted into the hollow part 24A of the rear frame 24. That is, the main frame 22 and the rear frame 24 are integrally connected via the joint member 72.

  Thus, since the joint member 72 is inserted into the hollow portions 22A and 24A provided in the main frame 22 and the rear frame 24, the joint member 72 is not exposed to the surface (design surface) side of the main frame 22 and the rear frame 24. Can be. Therefore, although the main frame 22 and the rear frame 24 are formed of different members and connected by the joint member 72, the appearance can be improved.

  Moreover, generally, when a hollow part is provided in a door frame, the strength and rigidity of the door frame may be reduced. In this case, as shown in FIG. 6B, when the door glass 100 is closed, a push-up force from the door glass 100 acts on the main frame 102. (Omitted) Receive reaction force from the side. For this reason, when the strength of the main frame 102 is reduced, the main frame 102 bends from the two-dot chain line to the shape indicated by the solid line with the door glass 100 fully closed, and between the main frame 102 and the rear frame 104. The formed angle θ2 (> θ1) may become large. In such a case, in the main frame 102, the parting width with the body changes in the vehicle front-rear direction, and the appearance is not good.

  However, in the present embodiment, as shown in FIG. 5, the joint member 72 is provided in the abutting portion 78 between the main frame 22 and the rear frame 24, and the insertion portions 74 and 76 of the joint member 72 are provided in the main frame 22. The hollow portion 22A and the hollow portion 24A of the rear frame 24 are respectively press-fitted. For this reason, the strength and rigidity of the abutting portion 78 between the main frame 22 and the rear frame 24 are improved. Thereby, as shown in FIG. 6A, it is possible to suppress the deflection of the main frame 22 when the door glass 16 is fully closed.

  Further, as described above, in the present embodiment, the main frame 22 and the rear frame 24 are connected by the joint member 72, and the joint member 72 is disposed at the abutting portion 78 of the main frame 22 and the rear frame 24. I am doing so. Thereby, the strength and rigidity of the main frame 22 and the rear frame 24 can be improved. For this reason, the main frame 22 and the rear frame 24 can be formed of a light metal such as an aluminum alloy, and the weight can be further reduced as compared with the door frame 18 formed of a steel material. Further, by forming the main frame 22 and the rear frame 24 with a light metal such as an aluminum alloy, it becomes possible to perform molding by extrusion molding, and it is possible to achieve weight reduction and cost reduction as compared with the case where the steel material is roll molded. .

  Further, as shown in FIGS. 1 and 2, the insertion portions 74 and 76 of the joint member 72 are press-fitted into the hollow portion 22 </ b> A of the main frame 22 and the hollow portion 24 </ b> A of the rear frame 24, respectively. 22 and the rear frame 24 are integrated. For this reason, for example, although not shown, productivity is improved as compared with a case where the main frame and the rear frame are integrated by arc welding or the like.

(Other embodiments)
In the present embodiment, the main frame 22 and the rear frame 24 are formed of an aluminum alloy, but a light metal such as aluminum or a magnesium alloy may be used. Further, the main frame 22 and the rear frame 24 may be made of different materials. In the present embodiment, the main frame 22 and the rear frame 24 are formed by extrusion molding. However, the present invention is not limited to this and may be formed by other processing methods such as drawing. Furthermore, the hollow portions 22A and 24A formed in the main frame 22 and the rear frame 24 may be formed only in a portion where the joint member 72 is inserted.

  In the present embodiment, the joint member 72 is formed of an aluminum alloy. However, as shown in FIG. 7, the joint member 72 may be formed of a resin material other than an aluminum alloy or a metal material such as aluminum or iron. good. Moreover, in this embodiment, although the joint member 72 is made into the solid shape formed by casting, as a manufacturing method of the joint member 72, in addition to casting, a shaving process, press work, roll molding, injection molding Etc. Note that, depending on the manufacturing method, the shape of the joint member 72 is hollow. Specific examples include press processing, roll molding, and injection molding. Furthermore, in the present embodiment, the joint member 72 is press-fitted into the frame (the main frame 22 and the rear frame 24), but is not limited thereto. That is, in addition to joining by press-fitting, joining methods by screw fastening, welding, adhesion, and ultrasonic welding can be mentioned. However, the joining method differs depending on the material of the joint member 72. As described above, the shape of the joint member 72 can be appropriately changed depending on the manufacturing method, the joining method, and the like. Of course, the shape can be changed depending on the shapes of the main frame 22 and the rear frame 24.

  Further, in the present embodiment, as shown in FIG. 5, the joint member 72 is provided in the abutting portion 78 of the main frame 22 and the rear frame 24 as the vertical column frame, but the main frame 22 and the vertical column are further provided. A joint member 82 may be provided in the abutting portion 80 with the front frame 20 as a frame.

  Moreover, although the front side door 10 was demonstrated in this embodiment, it is the same also about a rear side door. Although not shown, in the case of a rear side door, the main frame may support the movable door glass and the upper end of the fixed door glass. In this case, a front frame, a division bar, and a rear frame are connected to the main frame as vertical column frames. Since the bending deformation of the main frame due to the up-and-down movement of the movable glass may affect the fixed glass side, a joint member may be provided at the abutting portion between the main frame and the rear frame.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and various modifications other than the above can be implemented without departing from the spirit of the present invention. Of course.

10 Front Side Door 16 Door Glass 18 Door Frame 20 Front Frame (Vertical Column Frame)
22 Main frame 22A Hollow part 24 Rear frame (vertical column frame)
24A Hollow part 72 Joint member 78 Butting part 80 Butting part 82 Joint member

Claims (3)

A hollow main frame that forms the upper part of the door frame and extends along the vehicle longitudinal direction, and supports the upper end of the door glass;
A hollow vertical column frame that constitutes a side portion of the door frame and extends along a vehicle vertical direction, and supports a side end portion of the door glass;
The main frame and the vertical column frame are L-shaped in a side view and are arranged at the abutting portion between the main frame and the vertical column frame, and are inserted into the main frame and the vertical column frame. A joint member for connecting the
A vehicle door structure.   The vehicle door structure according to claim 1, wherein the main frame and the vertical column frame are formed by extrusion molding with a light metal.   The vehicle door structure according to claim 1, wherein the joint member is press-fitted into the main frame and the vertical column frame.

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