JP2014004944A - Roll molded door frame for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roll molded door frame for a vehicle which has a design part located on an out-vehicle side, a bag-shaped part located on an in-vehicle side, a connection part for connecting the design part and the bag-shaped part in a uniform cross section perpendicular to an extension direction, the design part having a plate part on the out-vehicle side and a plate part on the in-vehicle side obtained by folding an inner circumference side end part of the plate part on the out-vehicle side to an outer circumference side, and a glass run holding step part holding glass run formed on the plate part on the in-vehicle side with the connection part therebetween, and in which the height of a glass run holding step part is hard to be reduced during roll molding.SOLUTION: The roll molded door frame for a vehicle comprises, on the plate part on the in-vehicle side of the design part from the inner circumference side to the outer circumference side in order: an inclination part moving to the in-vehicle side in non-contact with the plate part on the out-vehicle side of the design part to be in unparallel with the plate part on the out-vehicle side of the design part; the glass run holding step part formed by moving a top part on an outer circumferential side of the inclination part to the out-vehicle side; and a connection part for connecting the connection part.

Description

  The present invention relates to a vehicle door frame (door sash), and more particularly to a roll-formed vehicle door frame having a glass run holding step.

  A vehicle door frame formed by roll forming of an iron-based material has a design section located on the vehicle exterior side, a bag-shaped portion located on the vehicle interior side, and the design portion and the bag in a uniform cross section orthogonal to the extending direction. A connecting portion for connecting the shape portions is formed by bending a series of plate materials. Further, a plate portion on the vehicle inner side of the design portion includes a glass portion between the connection portion and a plate portion on the vehicle inner side where the end portion on the inner peripheral side of the frame of the plate portion on the outer side of the design portion is folded back to the outer peripheral side. A holding step for holding the run is formed (Patent Document 1).

JP 2011-25855 A

  It is desirable that the glass run holding step has a high protruding height from the design part in order to prevent the glass run from dropping off. However, according to the present inventor, the conventional structure does not take into account the reduction in the height of the glass run holding step portion accompanying roll forming.

  The present invention was made on the basis of the above problem awareness, and in a vehicle door frame formed by roll molding, in particular, a glass run holding step portion formed by projecting on the back surface of the design portion (plate portion inside the vehicle). An object of the present invention is to obtain a door frame for a roll forming vehicle in which the height of the roll is difficult to decrease during roll forming.

  According to the present invention, in the conventional structure, at the time of roll forming, the design portion and the plate portion on the vehicle inner side obtained by folding the frame inner peripheral side end portion of the plate portion on the vehicle outer side of the design portion to the outer peripheral side, the vicinity of the folded portion In the close-contact molding, the fact that the height of the glass run holding step portion has decreased is found.

  The present invention, in a uniform cross section orthogonal to the extending direction, has a design part located on the vehicle outer side, a bag-like part located on the vehicle inner side, and a connection part for connecting the design part and the bag-like part, The design portion includes a plate portion on the vehicle outer side and a plate portion on the vehicle inner side where the inner peripheral side end portion of the plate portion on the vehicle outer side is folded back to the outer peripheral side, and the connection portion is connected to the plate portion on the vehicle inner side. In a roll-formed vehicle door frame in which a glass run holding step portion for holding a glass run is formed between the design portion, the board portion on the vehicle interior side of the design portion is arranged in order from the inner peripheral side to the outer peripheral side. Transition (approach) to the inside of the vehicle in a non-contact manner with the plate on the outside of the vehicle, and an inclined portion that is not parallel to the plate on the vehicle outside of the design portion, and the top on the outer peripheral side of the inclined portion is transferred to the outside of the vehicle The glass run holding step portion formed by (approaching), and a connecting portion connecting the glass run holding step portion and the connecting portion. It is characterized in that there.

  It is practical that the inclined portion is linear.

  The roll-formed vehicle door frame of the present invention is such that the angle formed by the plate portion on the vehicle outer side of the design portion and the inclined portion of the plate portion on the vehicle inner side is α, the inclined portion of the plate portion on the vehicle inner side of the consent design portion, and the above When the angle formed with the glass run holding step portion is γ (α and γ are the inner side angle of the triangular design portion, the inclined portion, and the glass run holding step portion), γ> α It is preferable to do.

  In the roll-molded vehicle door frame, the present invention is formed in order from the inner peripheral side to the outer peripheral side in order from the inner peripheral side to the outer peripheral side of the design portion, and gradually toward the inner side of the vehicle in a non-contact manner. An inclined portion that is not parallel to the plate portion on the vehicle outer side of the design portion, the glass run holding step portion that is formed by shifting the outer peripheral side of the inclined portion to the vehicle outer side, and the glass run holding step. Since the connecting portion connecting the connecting portion and the connecting portion is formed, it is formed by projecting to the back surface of the design portion (the plate portion on the vehicle inner side) by the action of the inclined portion that is not parallel to the plate portion on the vehicle exterior side of the design portion. The height of the glass run holding step can be kept high. In addition, a design that moves closer to the inside of the vehicle in a non-contact manner with the outside plate portion of the design portion without closely contacting the outside plate portion of the design portion and the inside plate portion of the design portion that has been in close contact with the conventional product. By using the inclined part which is not parallel to the plate part on the vehicle outside of the part, less material is used.

It is a side view which shows schematic structure of a vehicle door. It is sectional drawing of the door sash which shows one Embodiment of the door frame for roll forming vehicles of this invention which follows the AA line of FIG. (A), (B) is sectional drawing which compares and shows the door frame shape by one Embodiment of this invention, and the door frame shape employ | adopted by patent document 1. FIG.

  FIG. 1 shows the front door on the left side of a passenger car as viewed from the outside. The door 10 includes a door panel 11 and a door sash 12 positioned on the top thereof, and a region surrounded by the upper edge portion of the door panel 11 and the inner peripheral portion of the door sash 12 is a window opening 13. A door glass 14 is provided in the window opening 13 so as to be movable up and down. The door sash 12 includes an upper sash S1 extending from the door upper edge portion to the front edge portion, and a side sash S2 extending upward from the rear portion of the door panel 11, and joins the upper sash S1 and the side sash S2. Configured. In the following description, the side of the door sash that faces the window opening 13 is the frame inner peripheral side, and the side opposite to the window opening 13 that faces the inner edge of the vehicle body door opening when the door 10 is closed is the frame outer periphery. Let it be the side.

  FIG. 2 shows a cross section of the door sash 12 on the upper sash S1. As shown in FIG. 2, the door sash 12 includes a door frame 20 having a uniform cross section formed by roll-molding a metal plate material (for example, an iron plate). In the cross section orthogonal to the extending direction, the design portion 21 positioned on the vehicle outer side, the bag-shaped portion 22 having a cylindrical (box-shaped) closed cross section positioned on the vehicle inner side, and the design portion 21 and the bag-shaped portion 22 are connected. And a connecting portion 23. A glass run holding portion (glass guide portion) 24 is formed on the inner peripheral side of the door frame 20, and a weather strip holding portion 25 is formed on the outer peripheral side of the frame.

  The glass run holding portion 24 includes a side wall portion 26 that constitutes the inner surface of the design portion 21, a side wall portion 27 that constitutes the outer surface of the bag-like portion 22, and the inner peripheral side of the connecting portion 23. It is surrounded by a bottom wall portion 28 that forms a surface, and has a concave cross-sectional shape that is open toward the inner peripheral side of the frame (the window opening 13 side). Glass run holding step portions (locking step portions) 29 and 30 projecting in directions approaching each other are formed on the side wall portion 26 and the side wall portion 27. When the door glass 14 is fully closed, the peripheral edge portion (upper end portion) of the door glass 14 enters the glass run holding portion 24.

  A glass run 50 is fitted and held in the glass run holding portion 24. The glass run 50 has a uniform cross section, and includes a bottom portion 51 that contacts the bottom wall portion 28 and a pair of side wall portions 52 and 53 that contact the side wall portion 26 and the side wall portion 27. Lips 54 and 55 are protruded inward. The glass run holding step portions 29 and 30 formed on the glass run holding portion 24 are engaged with the protruding portions provided on the side wall portions 52 and 53 of the glass run 50 so that the glass run 50 is detached from the glass run holding portion 24. prevent. The glass run 50 in FIG. 2 shows a shape in a free state, and in a state where the glass run 50 is supported in the glass run holding portion 24, the portion of the glass run 50 that overlaps the door frame 20 in FIG. Elastically deforms. Further, when the door glass 14 enters the glass run holding portion 24, the lips 54 and 55 of the glass run 50 are pressed against the door glass 14 and elastically deformed, and the lip 54 and the lip 55 sandwich both side surfaces of the door glass 14. The door glass 14 is held elastically.

  The weather strip holding portion 25 includes a side wall portion 31 constituting the inner surface of the design portion 21, a bottom wall portion 32 constituting the frame outer peripheral surface of the connecting portion 23, and the inner side of the bottom wall portion 32. The end portion is surrounded by a side wall portion 33 formed by bending toward the outer peripheral side of the frame, has a concave cross-sectional shape opened toward the outer peripheral side of the frame, and protrudes in a direction in which the side wall portion 31 and the side wall portion 33 approach each other. Holding step portions 34 and 35 are formed.

  The weather strip 60 is fitted and held in the weather strip holding portion 25. The weather strip 60 has a uniform cross section, and the fitting strip 61 is brought into contact with the bottom wall 32 and engaged with the holding steps 34 and 35, thereby preventing the weather strip 60 from falling off the weather strip holder 25. ing. The weather strip 60 of FIG. 2 shows a shape in a free state, and when it is supported in the weather strip holding portion 25, the portion of the weather strip 60 that overlaps the door frame 20 and the like in FIG. 2 is elastically deformed. To do. When the door 10 is closed with respect to the vehicle body, the elastic contact portions 62 and 63 provided on the weather strip 60 are brought into contact with the inner edge (not shown) of the door opening of the vehicle body and elastically deformed. Block liquid tightly.

  As described above, a glass run holding step 29 is formed on the door frame 20 so as to protrude from the back surface (inside the vehicle) of the design portion 21. That is, as shown in an enlarged view in FIG. 3A, the design portion 21 includes a plate portion (design surface portion) 36 on the outside of the vehicle and a plate portion 36 on the outside of the vehicle at the outer periphery of the frame at the inner peripheral folding portion 29B. And a board portion (folding edge) 29A on the inner side that is folded back to the side. The plate portion 29A on the vehicle interior side is provided with an inclined portion 29C that gradually shifts (approaches) to the vehicle inner side in a non-contact manner with the plate portion 36 on the vehicle exterior side of the design portion 21 following the folded portion 29B. The glass run holding step portion 29 is formed by shifting (bending) the top portion (the closest portion to the vehicle inner side) of the outer peripheral side of the portion 29C to the vehicle outer side. The inclined portion 29C is not in contact (non-contact) with the plate portion 36 on the vehicle exterior side of the design portion 21, and extends linearly to the glass run holding step portion 29 while gradually approaching the vehicle interior side. The plate portion 29A on the vehicle interior further includes a connecting portion (design surface portion 36 and the design surface portion 36) that connects the glass run holding step portion 29 and the connecting portion 23 after the glass run holding step portion 29 reaches the back surface of the design portion 21 (design surface portion 36). A side wall portion (design portion parallel portion) 26 that is in close contact and extends in parallel is provided. The “board portion 29 </ b> A on the vehicle interior side” referred to in the present embodiment is a plate portion located on the vehicle inner side with respect to the plate portion 36 on the vehicle outer side of the design portion 21, and an area extending to the connection portion 23. means. In the present embodiment, the shape of the door frame 20 in other parts is not limited.

  The connecting portion 23 is located on the inner peripheral side of the frame and constitutes a bottom wall portion 28 constituting the glass run holding portion 24, a bottom wall portion 32 constituting the weather strip holding portion 25 located on the outer peripheral side of the frame, In this structure, three plate-like portions of the intermediate wall portion 37 located between the portion 28 and the bottom wall portion 32 are laminated. The intermediate wall portion 37 extends toward the inside of the vehicle and continues to the bag-like portion 22. The bag-like portion 22 includes an extended wall portion 38 that extends the intermediate wall portion 37 toward the inside of the vehicle, a vertical wall portion 39 that extends from the extended wall portion 38 toward the inner periphery of the frame, and a folded wall portion 40 that extends from the vertical wall portion 39 toward the vehicle outer side. The vehicle outer edge of the folded wall 40 continues to the side wall 27 (glass run holding step 30) constituting the glass run holding 24.

  FIG. 3 (B) shows the shape around the glass run holding step 29 ′ in Patent Document 1 for comparison with the shape around the glass run holding step 29 of the present embodiment of FIG. It is. A plate portion 29A ′ on the vehicle inner side on the back surface of the design portion 21 in Patent Document 1 has a close contact edge 29C ′ that is in close contact with the design portion 21 (the plate portion 36 on the vehicle outer side) following the folded portion 29B ′. A glass run holding step 29 'is formed on the vehicle outer side on the frame outer periphery side of the edge 29C'. This is because the conventional product forms a convex shape 29 ″ on the plate portion 29A ′ on the vehicle inner side during roll forming (two-dot chain line in FIG. 3B), and then the plate portion 36 on the vehicle outer side of the design portion 21. In order to take the step of turning back the two-dot chain line toward the vehicle interior plate portion 29A ′ as indicated by the arrow X, a force to lower the height is applied to the convex 29 ″. On the other hand, in the present embodiment, the inclined portion 29C is not in contact (non-contact) with the design portion 21 (the plate portion 36 on the vehicle outer side), and gradually moves closer to the vehicle inner side, and its top portion. Is bent outwardly to form a glass run holding step 29. For this reason, the height of the glass run holding step 29 is not lowered.

In the present embodiment, as shown in FIG. 3A, the angle formed by the design portion 21 (the plate portion 36 on the outside of the vehicle) and the inclined portion 29C is α, the consent design portion 21 (the plate portion 36 on the outside of the vehicle), and the glass. The angle formed by the run holding step 29 is β, and the angle formed by the inclined portion 29C and the glass run holding step 29 is γ (where α, β, γ are the plate portion 36, the inclined portion 29C, (Inner angle of glass run holding step 29), γ>β> α is set. Also, α, β and γ are respectively
It is preferable that 15 ° <α ≦ 40 ° 40 ° <β ≦ 70 ° 70 ° <γ ≦ 110 ° is satisfied.
By satisfying such an angle condition, it is possible to maintain the height of the glass run holding step 29 and to prevent the glass run 50 held by the glass run holding steps 29 and 30 from falling off.

  In addition, although there is a case where a molding is attached to the plate portion on the vehicle exterior side of the design portion 21 for the purpose of improving the appearance, the present invention determines whether or not such a molding is to be attached and its specific configuration. It doesn't matter what.

12 door sash 20 door frame 21 design part 22 bag-like part 23 connection part 24 glass run holding part 26 side wall part (design part parallel part)
29 Glass run holding step portion 29A (inside the design portion) plate portion 29B on the inner side of the vehicle 29 turn-back portion 29C inclined portion 36 (in the design portion) on the outer side plate portion (design surface portion)
50 glass run 60 weatherstrip

Claims (3)

In a uniform cross section orthogonal to the extending direction, it has a design part located on the vehicle outer side, a bag-like part located on the vehicle inner side, and a connection part connecting the design part and the bag-like part,
The design portion includes a plate portion on the vehicle outer side and a plate portion on the vehicle inner side where the inner peripheral side end portion of the plate portion on the vehicle outer side is folded back to the outer peripheral side. In a roll molded vehicle door frame in which a glass run holding step for holding a glass run is formed between the parts,
A plate portion on the vehicle interior side of the design portion, in order from the inner periphery side to the outer periphery side, transitions to the vehicle inner side in a non-contact manner with the plate portion on the vehicle exterior side of the design portion. A parallel inclined portion, the glass run holding step formed by shifting the outer peripheral top of the inclined portion to the vehicle exterior, and a connecting portion connecting the glass run holding step and the connecting portion. A door frame for a roll-formed vehicle. 2. The roll-formed vehicle door frame according to claim 1, wherein the inclined portion has a linear shape. The door frame for a roll-formed vehicle according to claim 1 or 2, wherein an angle formed by the plate portion on the vehicle exterior side of the design portion and the inclined portion of the plate portion on the vehicle interior side is α, and the plate portion on the vehicle interior side of the consent design portion. A roll-formed vehicle door frame in which γ> α, where γ is an angle formed between the inclined portion and the glass run holding step.

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