JP2017144943A - Door structure of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door structure of an automobile which improves strength in a vertical direction and in a vehicle width direction at a corner part between a vertical frame member forming a rear part of a side door and a beltline reinforcement, improves support rigidity and collision strength of a door outer handle, and secures anti-theft effect by the improved strength.SOLUTION: A door structure of an automobile comprises: a vertical frame part 12 forming a rear part of a side door; and a beltline reinforcement 23 formed of an extrusion molded member made of lightweight metal or light alloy metal extending from an upper part of the vertical frame part 12 to the front. A panel-shaped outer handle attaching bracket 25 covering a latch mechanism from an outer side and upper part in a vehicle width direction is arranged at a corner part between the upper part of the vertical frame part 12 and the beltline reinforcement 23. An outer handle base supporting the door outer panel at the inside thereof is fixed to the outer handle attaching bracket 25 while abutting on it, and the outer handle attaching bracket 25 is inclined and disposed so that a lower part thereof is positioned outside in the vehicle width direction in a front view.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an automobile door structure in which a door window glass is disposed between a door inner panel and a door outer panel so as to be movable up and down.

2. Description of the Related Art Generally, a door structure of an automobile is configured by arranging a door window glass so as to be movable up and down between a door inner panel and a door outer panel.
In such a door structure of an automobile, a configuration is provided that includes a vertical frame member that forms a rear portion of the side door, and a belt line reinforcement formed of an extruded member made of a light metal or a light alloy that extends forward from an upper portion of the vertical frame member. When adopted, the above-mentioned vertical frame member and the belt line reinforcement intersect at a substantially right angle, so the strength is low, and it is necessary to attach a door outer handle near the portion where both intersect at a substantially right angle. It is required to improve the strength, the support rigidity of the door outer handle, and the collision safety.

  However, since the beltline reinforcement described above is an extruded member made of light metal or light alloy, all of the same cross-sectional shape in the extrusion direction, even if it is a portion that requires high rigidity, It is not possible to partially increase the strength by partially changing the cross-sectional shape.

  By the way, Patent Document 1 discloses a structure in which an outer handle mounting bracket having an anti-theft function is connected to a lower portion of a beltline reinforcement composed of a rigid pipe member. In the conventional structure disclosed in the above, a rigid pipe member is used as a belt line reinforcement, and therefore, the problem peculiar to an extrusion molded member is not solved.

Japanese Patent No. 5056187

  In view of this, the present invention relates to the vertical direction of the corner portion and the vehicle width direction between the vertical frame member that forms the rear portion of the side door and the belt line reinforcement that is formed by an extruded member extending forward from the upper portion of the vertical frame member. It is possible to improve the strength of the door, to improve the support rigidity of the door outer handle and the impact strength, and to provide an anti-theft effect by improving the strength. Objective.

An automobile door structure according to the present invention is an automobile door structure in which a door window glass is disposed between a door inner panel and a door outer panel so as to be movable up and down, and includes a vertical frame member that forms a rear side of the side door, and the vertical frame member described above. A belt line reinforcement made of a light metal or light alloy extruded member extending forward from the upper part of the frame member, and a latch mechanism at a corner between the upper part of the vertical frame member and the belt line reinforcement. A panel-shaped outer handle mounting bracket that covers the outer side in the vehicle width direction from above is provided, and an outer handle base that supports the door outer panel on the inner side is abutted and fixed to the outer handle mounting bracket. The handle mounting bracket is tilted so that the lower part is located outside in the vehicle width direction when viewed from the front It is one that is location.
The above-mentioned vertical frame member may be a cast product of light metal or light alloy.

According to the above configuration, the outer handle mounting bracket described above is provided at the corner between the upper portion of the vertical frame member and the beltline reinforcement, and the lower portion of the outer handle mounting bracket is outside in the vehicle width direction when viewed from the front. Therefore, the strength of the corner portion in the vertical direction and the vehicle width direction can be improved, and the support rigidity of the door outer handle and the collision strength can be improved.
Further, the above-described outer handle mounting bracket covers the latch mechanism from the outside in the vehicle width direction and from above, and in combination with the improvement in the strength of the corner portion, the antitheft effect can be ensured.

In one embodiment of the present invention, the outer handle mounting bracket has a ridge line extending in the vehicle front-rear direction and a fragile portion formed in a part of the ridge line.
The above-mentioned weak part may be a notch part or an opening part for key cylinder arrangement.

  According to the above configuration, the outer handle mounting bracket and the beltline reinforcement are formed by forming the fragile portion while improving the rigidity and load transmission performance of the outer handle mounting bracket in the vehicle front-rear direction at the ridgeline. It is possible to prevent stress from concentrating on the connecting portion.

  In one embodiment of the present invention, the beltline reinforcement includes an inner side surface portion that faces the outer side surface in the vehicle width direction of the door window glass and extends outward and downward, and a lower portion of the inner side surface portion that extends outward and downward. A lower rib that extends and an upper rib that extends upward from the upper portion of the inner side surface portion, and the outer handle mounting bracket is attached to the lower rib.

  According to the above configuration, since the inner side surface and the lower rib of the belt line reinforcement extend obliquely outward and downward, it is possible to further suppress deformation of the belt line reinforcement in the vertical direction and the vehicle width direction. it can.

  According to the present invention, the vertical direction of the corner portion and the vehicle width direction between the vertical frame member forming the rear portion of the side door and the belt line reinforcement formed of an extrusion-molded member extending forward from the upper portion of the vertical frame member. The strength of the door can be improved, the support rigidity of the door outer handle can be improved and the impact strength can be improved, and the anti-theft effect can be secured by the strength improvement.

External side view showing the door structure of the automobile of the present invention as seen from the outside of the car A perspective view of the door structure with the door outer panel removed Side view showing the door frame structure as seen from the outside Explanatory drawing showing the structure of the window regulator as seen from the outside of the vehicle The principal part expansion perspective view of the state which provided the outer handle attachment bracket in the structure of FIG. FIG. 5 is a cross-sectional view taken along the line AA in FIG. BB sectional view taken on line in FIG. Perspective view of slider (A) is an exploded view of a pressing member, a receiving member, and a door belt line constituent member, (b) is a cross-sectional view taken along the line CC of FIG. 9 (a). Illustration of the receiving member Explanatory drawing which shows the attachment structure of a fan-shaped guide member and a down stopper

  Strengthening the strength of the corner portion between the vertical frame member forming the rear side of the side door and the belt line reinforcement composed of an extrusion-molded member extending forward from the upper portion of the vertical frame member and in the vehicle width direction; The door window glass can be raised and lowered between the door inner panel and the door outer panel for the purpose of improving the support rigidity of the door outer handle and the impact strength, and ensuring the anti-theft effect by improving the strength. In a possible door structure of an automobile, a vertical frame member that forms a rear portion of a side door, and a beltline reinforcement formed of an extruded member made of light metal or light alloy that extends forward from the upper part of the vertical frame member. A latch mechanism at the corner between the upper part of the vertical frame member and the beltline reinforcement. A panel-like outer handle mounting bracket that covers from the outside and from above is provided, and an outer handle base that supports the door outer panel is abutted and fixed to the outer handle mounting bracket, and the outer handle mounting bracket is This is realized by a configuration in which the lower portion is inclined so as to be positioned on the outer side in the vehicle width direction in front view.

An embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an exterior side view showing a sashless type side door structure as viewed from the outside of the vehicle, and FIG. 2 is a perspective view of the door structure with a door outer panel removed. 3 is a side view showing the door frame structure as seen from the outside of the vehicle, FIG. 4 is an explanatory view showing the structure of the window regulator as seen from the outside of the vehicle, and FIG. 5 is provided with an outer handle mounting bracket in the structure of FIG. FIG. 6 is a cross-sectional view taken along the line AA in FIG. 5, and FIG. 7 is a cross-sectional view taken along the line BB in FIG. 1.

<Door frame structure>
First, the structure of the door frame will be described with reference to FIG.
As shown in FIG. 3, the door frame 10 includes a vertical frame portion 11 that is a front vertical frame member that forms the front side portion of the door main body, and a rear vertical frame member that forms the rear side portion of the door main body. A vertical frame portion 12, a belt line reinforcement inner 13 as a door belt line constituting member forming the upper side portion of the door body, and a connecting member 14 (so-called lower frame) forming the lower side portion of the door body. I have.
The vertical frame portions 11 and 12 (so-called vertical frame frames) before and after the above are formed of cast members made of light metal or light alloy. In this embodiment, both the vertical frame portions 11 and 12 are formed by aluminum die casting.

Further, the beltline reinforcement inner 13 and the connecting member 14 (lower frame) described above are formed of light metal or light alloy extruded members.
Then, the upper part of the front vertical frame part 11 that forms the front part of the side door and the upper part of the rear vertical frame part 12 that forms the rear part of the side door are connected to the front and rear of the vehicle by the beltline reinforcement inner 13 described above. In addition to being connected in the direction, the lower part of the front vertical frame part 11 and the lower part of the rear vertical frame part 12 are connected in the vehicle front-rear direction by the connecting member 14 described above.

Here, the front vertical frame member 11 and the beltline reinforcement inner 13 described above are connected so as to intersect at a substantially right angle. Similarly, the rear vertical frame member 12 and the beltline reinforcement inner 13 are connected to each other. Are connected so as to cross at a substantially right angle.
Further, the front vertical frame member 11 and the connecting member 14 described above are connected so as to cross at a substantially right angle, and similarly, the rear vertical frame member 12 and the connecting member 14 are connected so as to cross at a substantially right angle. Yes.

  As shown in FIG. 3, a plurality of boss portions 15, 15 for attaching a front portion of a beltline reinforcement outer 23 (see FIG. 2) to be described later are spaced apart in the vehicle front-rear direction at the upper portion of the front vertical frame portion 11. In addition, a plurality of boss portions 16 and 16 for attaching a front portion of an impact bar 24 (see FIG. 2), which will be described later, are spaced apart in the vehicle front-rear direction at an intermediate portion in the vertical direction of the vertical frame portion 11. It is integrally formed.

  Here, the upper boss portions 15 and 15 are connected to each other in the front-rear direction by a rib 15a to improve the rigidity of the boss portions 15 and 15. Similarly, the boss parts 16 and 16 at the middle part in the vertical direction are also connected in the front-rear direction by ribs 16a, so that the rigidity of the boss parts 16 and 16 is improved.

  As shown in FIG. 3, door hinge brackets 17 and 18 are attached to both the upper and lower positions of the front end portion of the front vertical frame portion 11.

  As shown in FIG. 3, a plurality of boss portions 19, 19 for attaching a rear portion of a beltline reinforcement outer 23 (see FIG. 2), which will be described later, are spaced apart in the vehicle longitudinal direction at the upper portion of the rear vertical frame portion 12. In addition, a plurality of boss portions 20 and 20 for attaching a rear portion of an impact bar 24 (see FIG. 2), which will be described later, are separated and integrated in the longitudinal direction of the vehicle at an intermediate portion in the vertical direction of the vertical frame portion 12. Forming.

  Here, the upper boss portions 19 and 19 are connected to each other in the front-rear direction by a rib 19a to improve the rigidity of the boss portions 19 and 19. Similarly, the bosses 20 and 20 at the middle in the vertical direction are also connected in the front-rear direction by the ribs 20a, so that the rigidity of the bosses 20 and 20 is improved.

  As shown in FIG. 3, an outer handle mounting bracket 25 (see FIG. 5), which will be described later, is provided between the upper boss portion 19 and the vertical middle boss portion 20 in the rear vertical frame portion 12. A plurality of boss portions 21 and 21 for fixing the rear portion are formed integrally apart from each other in the vertical direction, and a striker engagement groove 22 is formed so as to correspond to the latch mechanism arrangement portion.

  As shown in FIGS. 2 and 3, a belt line reinforcement outer 23 as a door belt line constituting member is attached to the boss parts 15 and 19 (the boss part for attaching the belt line reinforcement outer). ing. The belt line reinforcement outer 23 is formed of an extruded member made of light metal or light alloy, like the belt line reinforcement inner 13 described above.

As shown in FIGS. 2 and 3, an impact bar 24 is attached to the above-described boss portions 16 and 20 (boss portions for impact bar attachment). As shown in FIG. 2, the impact bar 24 extends in the vehicle front-rear direction, and is attached in an inclined manner so that the front end of the impact bar 24 is higher than the rear end. The impact bar 24 is formed of an extruded member made of light metal or light alloy, like the elements 13 and 23.
As shown in FIG. 2, a plurality of attachment portions 23a and 23b for fixing an outer handle attachment bracket 25 (see FIG. 5) described below are formed on the rear portion of the beltline reinforcement outer 23 described above. Yes. The beltline reinforcement outer 23 is a reinforcement that extends forward from the upper portion of the rear vertical frame portion 12.

  Further, as shown in FIG. 5, a latch mechanism (a striker corresponding to the latch mechanism arrangement portion) is provided at a corner portion between the upper portion of the rear vertical frame portion 12 and the rear portion of the beltline reinforcement outer 23. A panel-shaped outer handle mounting bracket 25 that covers the engagement groove 22) from the outside in the vehicle width direction and from above is provided.

<Configuration of outer handle mounting bracket>
Next, the outer handle mounting bracket 25 and its mounting structure will be described with reference to FIGS.
The above-described outer handle mounting bracket 25 is formed by processing a metal plate, and this outer handle mounting bracket 25 includes a plurality of boss portions 21 of the vertical frame portion 12 shown in FIGS. 21 (the boss portion for fixing the outer handle mounting bracket) and the mounting portions 23 a and 23 b of the belt line reinforcement outer 23.

  As shown in FIGS. 6 and 7, an inner end portion of an outer handle base 27 that supports a door outer panel 26 on its inner side is abutted and fixed to the outer handle mounting bracket 25 described above.

  As shown in FIG. 5, the outer handle mounting bracket 25 described above is formed in a substantially inverted trapezoidal shape, and a corner portion between the upper portion of the rear vertical frame portion 12 and the rear portion of the beltline reinforcement outer 23. 6 extends in the vehicle front-rear direction, and as shown in FIG. 6, is inclined so that the lower portion thereof is located on the outer side in the vehicle width direction when viewed from the front.

  Specifically, as shown in FIG. 6, the outer handle mounting bracket 25 has an upper end 25a located on the inner side in the vehicle width direction with respect to the lower end 25b and a lower end 25b on the outer side in the vehicle width direction with respect to the upper end 25a. It is inclined and arranged so that it may be located in.

  As described above, the outer handle mounting bracket 25 is provided at the corner portion between the upper portion of the rear vertical frame portion 12 and the rear portion of the beltline reinforcement outer 23, and the outer handle mounting bracket 25 is lower than the outer handle mounting bracket 25 in a front view. Is arranged so as to be positioned on the outer side in the vehicle width direction, thereby improving the strength of the corner portion in the vertical direction and the vehicle width direction, and improving the support rigidity of the door outer handle 28 (see FIGS. 1 and 7). In addition to improving the collision strength, the outer handle mounting bracket 25 described above covers the latch mechanism from the outside in the vehicle width direction and from above, so as to ensure the anti-theft effect in combination with the improvement in the corner portion strength. It is composed.

  Specifically, the beltline reinforcement outer 23 is formed of an extrusion molding member, and the extrusion molding member has low rigidity with respect to the inside and outside in the vehicle width direction. The corner portion with the vertical frame portion 12 as the vertical frame member is reinforced by the outer handle mounting bracket 25, and the rigidity of the corner portion in the vehicle width direction is improved, and at the same time, the anti-theft function is enhanced. It is a thing.

  As shown in FIG. 5, the outer handle mounting bracket 25 described above has a flange portion 25d extending continuously at the front and lower portions of the bracket body 25c, and serves as a mounting seat at the rear upper and rear lower sides of the bracket main body 25c. FIG. 2 and FIG. 3 show the fastening portions 25g formed at the upper end of the flange portion 25d and the fastening portions 25h and 25h formed at the recesses 25e and 25f. The mounting portion 23a and the boss portions 21 and 21 are fastened and fixed.

  As shown in FIGS. 5 and 6, ridge lines X1 and X2 extending in the vehicle front-rear direction are formed in parallel on the bracket body 25c of the outer handle mounting bracket 25 described above, and part of the ridge lines X1 and X2 ( An opening 29 as a fragile portion is formed in the rear of the vehicle in the longitudinal direction.

In this embodiment, the opening 29 is used for arranging the key cylinder, and at the position of the opening 29, the above-mentioned ridge lines X1 and X2 are interrupted.
Excessive stress is applied to the connecting portion between the outer handle mounting bracket 25 and the beltline reinforcement outer 23 while improving the rigidity and load transmission performance of the outer handle mounting bracket 25 in the vehicle front-rear direction by the ridge lines X1 and X2. Concentration is prevented at the opening 29 described above.

  As shown in FIG. 6, the upper end 25 a of the outer handle mounting bracket 25 substantially corresponds to the position of the upper inner end 27 a of the outer handle base 27, but the lower end 25 b of the outer handle mounting bracket 25 is the outer handle base 27. The lower recessed portion 25f (mounting seat) is formed in the extended portion, and the recessed portion 25f is fastened to the boss portion 21 by the fastening portion 25h. In this structure, the rigidity of the outer handle mounting bracket 25 itself is improved and the rigidity of the corner portion is further improved.

<Beltline reinforcement outer and surrounding structure>
Next, the beltline reinforcement outer 23 and its peripheral structure will be described with reference to FIGS.
As shown in FIG. 6, the beltline reinforcement outer 23 extends outward and downward facing the closed cross-section 23 c formed by extrusion molding and the vehicle width direction outer surface of the door window glass 30 (that is, the upper end). An inner side surface portion 23d (so-called inclined surface portion) extending from the bottom to the lower end of the vehicle in the vehicle width direction, a lower rib 23e extending downward from the lower side of the inner side surface portion 23d, and an upper portion of the inner side surface portion 23d. And an upper rib 23f extending upward from the upper side, and as shown in FIG. 5, the upper portion of the outer handle mounting bracket 25 is attached to the lower rib 23e.

  The inner side surface portion 23d and the lower rib 23e of the beltline reinforcement outer 23 described above are extended obliquely outward and downward to suppress deformation of the beltline reinforcement outer 23 in the vertical direction and the vehicle width direction. It is comprised as follows.

  As shown in FIG. 6, the above-described upper rib 23 f is engaged with an engagement recess 26 b formed in the rib 26 a of the synthetic resin door outer panel 26, so that the belt line reinforcement outer 23 is engaged with the door outer panel. The upper part of 26 is engaged and fixed. Here, a plurality of the ribs 26a described above are formed on the upper inner surface of the door outer panel 26 at intervals in the vehicle front-rear direction, but FIG. 6 shows only one rib 26a.

  The load of the door outer panel 26 is transmitted to the outer handle mounting bracket 25 via the elements 23f, 23d, 23e of the beltline reinforcement outer 23 and the fastening portion 25g shown in FIG. This load-distributed load is transmitted to the vertical frame portion 12.

  Further, in both the beltline reinforcement outer 23 and the outer handle mounting bracket 25 described above, a relatively long substantially linear structure extending obliquely outward and downward is formed as shown in FIG. Thus, the door rigidity in the vertical direction and the vehicle width direction is further increased.

  In general, the upper part of the side door is narrowly formed in the vehicle width direction due to the design, and it is difficult to ensure the rigidity in the vehicle width direction. Therefore, the upper rib 23f is extended in the vertical direction to ensure the rigidity. In order to secure sufficient rigidity in the vehicle width direction, both the beltline reinforcement outer 23 and the outer handle mounting bracket 25 are disposed in an inclined manner so as to extend outward and downward as shown in FIG. The inclined arrangement of these both 23 and 25 ensures a sufficient space for storing the link of the latch mechanism inside the both 23 and 25, and the outer handle mounting bracket 25 also functions as a protector. It is configured to demonstrate.

<Configuration of window regulator>
Next, the structure of the window regulator 40 which raises / lowers the door window glass 30 is demonstrated with reference to FIG.
As shown in FIG. 4, the window regulator 40 includes a pair of front and rear guide rails 31 and 32 that extend substantially in the vertical direction, slides up and down along the pair of guide rails 31 and 32, and a door window glass 30 is attached to the window regulator 40. A pair of front and rear carrier plates 33, 33 supported, winding portions 34, 35, 36, 37 provided at both upper and lower ends of the pair of guide rails 31, 32, and the respective winding portions 34-37 A guide wire 38 that is overlaid and whose direction is changed by the winding portions 34, 35, 36, and 37, and an actuator 39 that drives the guide wire 38 are provided.

  As shown in FIG. 4, the pair of front and rear guide rails 31 and 32 are arranged in parallel to each other. A plurality of mounting pieces 31a, 31b, 31c, and 31d are integrally formed on the rear side of the front guide rail 31 in the vehicle front-rear direction so as to be separated from each other in the vertical direction, and each of these mounting pieces 31a to 31d is a module. It is attached to a plate 41 (see FIGS. 2, 6 and 7).

  Similarly, as shown in FIG. 4, a plurality of mounting pieces 32a, 32b, 32c, and 32d are integrally formed at the front side in the vehicle front-rear direction of the rear guide rail 32 so as to be separated in the vertical direction. Each attachment piece 32a-32d is attached to the module plate 41 (refer FIG.2, FIG.6, FIG.7).

  As shown in FIG. 4, the mounting structure of the front upper carrier plate 33 and the door window glass 30 is the same as the mounting structure of the rear upper carrier plate 33 and the door window glass 30. As shown in FIG. 7, the door 33 and the door window glass 30 are fastened together by a pair of inner and outer bushes 42, a pair of inner and outer retainers 43, and a support member 46 including a bolt 44 and a nut 45.

  As shown in FIG. 4, a connection bracket 47 that connects the front carrier plate 33 and the rear carrier plate 33 in the front-rear direction is provided. The connection bracket 47 has a plurality of openings for weight reduction.

As shown in FIG. 4, the three attachment structures of the rear lower part of the front carrier plate 33, the door window glass 30, and the front part of the connecting bracket 47 are the front lower part of the rear carrier plate 33 and the door window. The three members of the glass 30 and the rear portion of the connecting bracket 47 are the same, and the carrier plate 33, the door window glass 30, and the connecting bracket 47 are provided with another support member 48 having the same structure as the support member 46. And fixed together.
The guide wire 38 includes an outer tube 38a and an inner wire 38b, and the inner wire 38b is clamped by clamp portions 47a and 47b at both front and rear ends of the connection bracket 47 described above.
Two clamp parts 47a and 47b described above are formed at the front end of the connection bracket 47 with a space in the vertical direction, and two are formed at the rear end of the connection bracket 47 with a space in the vertical direction. .

  The actuator 39 includes a motor 49 that incorporates a current sensor that detects the upper limit position, the lower limit position, and the biting of the door window glass 30 when the current value exceeds a threshold value.

  As shown in FIG. 4, among the above-described winding portions 34 to 37, the winding portion on the release side when the door window glass 30 is raised, that is, the winding portion 35 provided at the lower end portion of the front guide rail 31 is provided. A downwardly convex fan-shaped guide portion 50 is formed, and all the other winding portions 34, 36, and 37 other than the winding portion 35 are pulleys 51 (so-called pulleys).

  FIG. 8 is a perspective view of the slider, FIG. 9A is an exploded view of a pressing member, a receiving member, and a door belt line constituent member (belt line reinforcement inner), and FIG. FIG. 10A is an explanatory view of a receiving member, and FIG. 11 is an explanatory view showing a mounting structure of a fan-shaped guide member and a down stopper.

  As shown in FIGS. 4 and 11, a down stopper 52 that restricts the lowering position of the door window glass 30 is provided in the upper portion of the fan-shaped guide portion 50 described above. The down stopper 52 is formed of an elastic member such as rubber or elastomer.

  As shown in FIG. 4, the movement of the guide wire 38 when the door window glass 30 is raised is indicated by an arrow. However, the winding portions 35 and 37 at the lower ends of the pair of front and rear guide rails 31 and 32 are on the release side. In this embodiment, the winding portion 35 at the lower end portion of the front guide rail 31 is a fan-shaped guide portion 50 that protrudes downward.

  In this way, the release side winding portion 35 when the door window glass 30 is raised is used as a fan-shaped guide portion 50, and a down stopper 52 is provided on the upper portion of the fan-shaped guide portion 50 as shown in FIG. The down stopper 52 is compactly arranged using the winding part 35, and is configured to ensure the descent restriction strength while achieving both the elevating and lowering properties of the door window glass 30 in the normal state and the downsizing. It is.

  As shown in FIGS. 4, 7, and 8, the carrier plate 33 is provided with sliders 53 and 54 that slide on the guide rails 31 and 32 described above. The structure of the slider 53 that slides on the front guide rail 31 and the support structure thereof, and the structure of the slider 54 that slides on the rear guide rail 32 and the support structure thereof are substantially symmetrical. The slider 54 and its support structure will be described.

<Slider and its support structure>
As shown in FIG. 8, the slider 54 is composed of a block-shaped slider main body 54a and a pair of inner and outer elastic slides that are formed in the vehicle width direction intermediate portion of the slider main body 54a and extend in the vertical direction to slide on the guide rail 32. Portions 54b, 54b, space portions 54c, 54c formed inside and outside in the vehicle width direction of the pair of inner and outer elastic sliding portions 54b, 54b, and a vertical wall 54d forming the space portions 54c, 54c, The stoppers 54e, 54e extending from the intermediate portion in the vertical direction of 54d toward the elastic sliding portions 54b, 54b, and the mounting piece 33a formed on the carrier plate 33 and formed on the inner side in the vehicle width direction of the slider body 54a. A fitting hole 54f to be fitted into (see FIG. 7) is integrally formed.

  As shown in FIGS. 7 and 8, the slider 54 has a fitting hole 54f fitted and fixed to the mounting piece 33a, and a rear edge portion of the guide rail 32 between the pair of elastic sliding portions 54b and 54b (however, In the guide rail 31 on the front side, the front edge portion) is slidably held.

  In this embodiment, as shown in FIG. 4, a total of two sliders 53, 53 and sliders 54, 54 are provided apart from the carrier plates 33, 33 on one side in the vertical direction.

As shown in FIG. 4, the front slider 53 is fitted to the front edge of the front guide rail 31 from the front outer side, and the rear slider 54 is shown in FIGS. In this way, the rear edge of the rear guide rail 32 is fitted to the rear edge.
In this way, the front and rear sliders 53 and 54 are fitted to the guide rails 31 and 32 from the front and rear sides, respectively, so that the door window glass 30 is reliably positioned in the front and rear direction and fitted to the front guide rail 31. The down stopper 52 is configured to be compactly arranged on the inner side (that is, the rear side in the front-rear direction) of the slider 53 formed.

<Structure of fan guide and down stopper>
As shown in FIG. 11, at the lower end portion of the guide rail 31 on the front side, an attachment piece 55 for attaching both the above-described down stopper 52 and the fan-shaped guide portion 50 up and down is integrally formed by raising and cutting means. Yes. The down stopper 52 is attached to the upper part of the attachment piece 55, and the fan-shaped guide part 50 is attached to the lower part of the attachment piece 55. Here, a concave groove portion 50 a for guiding the guide wire 38 is formed on the peripheral surface of the fan-shaped guide portion 50 described above.
The mounting piece 55 for attaching the above-described down stopper 52 and the fan-shaped guide portion 50 is formed integrally with the guide rail 31 so as to suppress an increase in the number of parts.

<Configuration of temporary glass support>
By the way, as shown in FIG. 4, the glass temporary support part 57 which can be rock | fluctuated in the front-back direction centering on the pivot 56 is provided in the front-back direction intermediate position of the connection bracket 47, Preferably, in the front-back direction center position. . The glass temporary support portion 57 is integrally formed with a recess in which the lower end of the door window glass 30 is disposed.

  The door is closed with respect to a body (not shown), the lower end of the door window glass 30 is disposed in the concave portion of the temporary glass support portion 57, and the support member 48 is not fastened (the bolt and nut are not completely tightened). ), The actuator 39 of the window regulator 40 is driven, the door window glass 30 is moved upward, and its upper end is brought into contact with the roof side rail portion and the front pillar portion on the body side, and the pivot portion When the unfastened support member 48 is fastened after positioning the door window glass 30 via the glass temporary support portion 57 that swings with the fulcrum 56 as a fulcrum, the front and rear carrier plates 33 and 33 are positioned at appropriate positions in the glass closed position. Can be easily positioned and fixed.

  In other words, the door window glass 30 is temporarily supported at the front-rear direction intermediate portion of the connecting bracket 47, and the door window glass 30 and the carrier plate 33 can be easily positioned at appropriate positions in the glass closed position after the vehicle body is assembled. This is particularly effective for sashless side doors.

<Up stopper and surrounding structure>
Next, with reference to FIG. 6, FIG. 9, and FIG. 10, an up stopper that regulates the upper limit position of the door window glass 30 and its peripheral structure will be described. Since the front and rear upper stoppers 60, 60 shown in FIG. 4 are formed in the same structure, FIG. 6 corresponding to the cross-sectional view taken along the line AA in FIG. 5 and FIG. With reference to FIG. 9B, the upper stopper 60 located on the rear side and the peripheral structure thereof will be described.

  As shown in FIG. 6, the up stopper 60 is a pressing member 62 fixed to the carrier plate 33 using a plurality of screws 61 (only one screw 61 is shown in the drawing) as a lower member on the glass side. And a receiving member 64 which is attached to the beltline reinforcement inner 13 as a door-side upper member 13 so as to be movable and adjustable in the front-rear direction using bolts 63.

  A convex portion is formed on one of the lower member (pressing member 62) and the upper member (receiving member 64), and a concave portion is formed on either of the other. In this embodiment, the lower member A convex portion 62a having a wedge shape (specifically, a trapezoidal shape elongated in the vertical direction) is integrally formed on a pressing member 62, and a concave portion 64a corresponding to the wedge shape is formed on a receiving member 64 which is an upper member. doing.

  As shown in FIGS. 9B and 10, the receiving member 64 is provided with contact surfaces 64 b and 64 c that are inclined in the vertical direction in a side view. As shown in the figure, in this embodiment, the front surfaces of the contact surfaces 64b and 64c are relatively close to the beltline reinforcement inner 13 and the rear portions thereof are relative to the beltline reinforcement inner 13. It is inclined inward and outward in the vehicle width direction so as to be far away.

  Further, as shown in FIGS. 6, 9, and 10, the receiving member 64 described above is formed on ribs (specifically, upward ribs 13a and lateral ribs 13b) of the beltline reinforcement inner 13 as a door beltline constituting member. On the other hand, it is supported so as to be slidable in the horizontal direction (that is, the longitudinal direction of the vehicle). A concave groove may be adopted instead of the lateral rib 13b.

  Thus, the vertical position of the door window glass 30 can be adjusted only by sliding the receiving member 64, which is the upper member, horizontally with respect to the ribs 13a and 13b of the beltline reinforcement inner 13, and the position adjustment is performed. Further, the upper and lower positions of the door window glass 30 can be regulated by fitting the concave and convex portions of the receiving member 64 and the pressing member 62, and the upper limit position and the above-described vertical position are appropriate. Thus, the suction prevention performance of the door window glass 30 is ensured.

  In other words, the upper limit position of the door window glass 30 can be regulated by the up-stopper 60 described above, so that the upper window glass can be prevented from being raised too much, and positioning in the vertical direction can also be performed. It is possible to achieve both the prevention of vibration 30 and the prevention of suction of the door window glass 30 due to the negative pressure during high-speed traveling.

Incidentally, in the conventional structure, the member for positioning the door window glass in the vertical direction is provided separately from the up stopper, but in this embodiment, the upper stopper 60 restricts the upper limit position of the door window glass 30. Positioning in the vertical direction can be performed.
In the receiving member 64 described above, a contact surface 64b (a surface for contacting the convex portion 62a of the pressing member 62) is formed at a portion along the glass surface 13c of the beltline reinforcement inner 13. The contact surface 64b is inclined upward and toward the door window glass 30 side.

  Thus, the positioning load when the convex portion 62a of the pressing member 62 is fitted into the concave portion 64a of the receiving member 64 when the upper limit position of the door window glass 30 is regulated is received by the beltline reinforcement inner 13 described above. The door window glass 30 is configured to be stopped and firmly supported.

  Here, as described above, the beltline reinforcement inner 13 is formed of a light metal or light alloy extruded member, and the beltline reinforcement inner 13 includes a closed cross section 13d, Four sides of an upper piece 13e, a lower piece 13f, an outer piece 13g, and an inner piece 13h that surround the closed section 13d, the above-mentioned lateral rib 13b that protrudes toward the glass on the extension line of the upper piece 13e, and an extension line of the outer piece 13g The above-described upward rib 13a protruding upward and the downward rib 13i extending downward from the vicinity of the connecting corner portion of the outer piece 13g and the lower piece 13f are integrally formed.

  As shown in FIG. 9A, in the receiving member 64, in addition to the concave portion 64a, a fitting concave portion 64d for fitting the above-mentioned lateral rib 13b and a downward direction for loosely fitting the above-mentioned upward rib 13a. The groove portion 64e is formed. That is, the door-side receiving member 64 is formed in a cross-sectional shape that fits into each of the ribs 13a and 13b described above.

A fastening portion 64f including the bolt 63 is formed on the receiving member 64 on the side opposite to the door window glass 30 of the upward rib 13a, that is, on the inner side in the vehicle width direction. , Bolt 63) can be operated from the side of the passenger compartment when the door is closed, which is the outside of the side door, and the position adjustment work of the door window glass 30 is facilitated.
In the figure, arrow F indicates the front of the vehicle, arrow R indicates the rear of the vehicle, arrow IN indicates the inward in the vehicle width direction, and arrow OUT indicates the outward in the vehicle width direction.

  As described above, the vehicle door structure of the above-described embodiment is a vehicle door structure in which the door window glass 30 is disposed between the door inner panel and the door outer panel 26 so as to be movable up and down, and forms a rear portion of the side door. A vertical frame portion 12 and a beltline reinforcement outer 23 made of an extruded member made of light metal or light alloy extending forward from the upper portion of the vertical frame portion 12, the upper portion of the vertical frame portion 12 and the beltline rain A panel-shaped outer handle mounting bracket 25 that covers the latch mechanism (see the striker engagement groove 22) from the outside in the vehicle width direction and from above is provided at the corner between the outer outer mounting bracket 25 and the outer outer mounting bracket 25. The outer handle base 27 that supports the door outer panel 26 on the inside is abutted and fixed. Ri, the outer handle mounting bracket 25 is a bottom is arranged in an inclined manner so as to be positioned outward in the vehicle width direction in a front view (FIG. 5, FIG. 6, refer to FIG. 7).

According to this configuration, the outer handle mounting bracket 25 described above is provided at the corner portion between the upper portion of the vertical frame portion 12 and the beltline reinforcement outer 23, and the outer handle mounting bracket 25 is lower than the outer handle mounting bracket 25 in a front view. Is inclined so as to be positioned on the outer side in the vehicle width direction, so that the strength of the corner portion in the vertical direction and the vehicle width direction can be improved, and the support rigidity of the door outer handle 28 and the collision strength can be improved. be able to.
Furthermore, the above-described outer handle mounting bracket 25 covers the latch mechanism from the outside in the vehicle width direction and from above, and can be combined with the improvement in the strength of the corner portion to ensure the anti-theft effect.

  In one embodiment of the present invention, the outer handle mounting bracket 25 is formed with ridgelines X1 and X2 extending in the vehicle front-rear direction, and a fragile portion (see opening 29) is formed at a part of the ridgelines X1 and X2. It is formed (see FIGS. 5 and 6).

  According to this configuration, the outer handle is formed by forming the fragile portion (see the opening 29) while improving the rigidity and load transmission performance of the outer handle mounting bracket 25 in the vehicle longitudinal direction at the ridge lines X1 and X2. It is possible to prevent stress from concentrating on the connecting portion between the mounting bracket 25 and the beltline reinforcement outer 23.

  In one embodiment of the present invention, the beltline reinforcement outer 23 includes an inner side surface portion 23d that extends outward and downward facing the outer surface in the vehicle width direction of the door window glass 30, and the inner side surface portion 23d. A lower rib 23e extending outward from the lower portion and an upper rib 23f extending upward from the upper portion of the inner side surface portion 23d are provided, and the outer handle mounting bracket 25 is attached to the lower rib 23e. (See FIGS. 5 and 6).

  According to this configuration, since the inner side surface 23d and the lower rib 23e of the beltline reinforcement outer 23 extend obliquely outward and downward, the beltline reinforcement outer 23 is deformed in the vertical direction and the vehicle width direction. Can be further suppressed.

In the correspondence between the configuration of the present invention and the above-described embodiment,
The vertical frame member of the present invention corresponds to the vertical frame portion 12 on the rear side of the embodiment,
Similarly,
The belt line reinforcement corresponds to the belt line reinforcement outer 23,
The weak part corresponds to the opening 29,
The present invention is not limited to the configuration of the above-described embodiment.
For example, in the above-described embodiment, the front door structure of the sashless structure is exemplified as the side door, but the present invention may be adopted for the rear door. Moreover, in the said Example, although two parallel ridgelines X1 and X2 were formed by the level | step difference structure, you may replace with this and may form a ridgeline by the bead oriented in the vehicle front-back direction.

  As described above, the present invention is useful for an automobile door structure in which a door window glass is disposed between a door inner panel and a door outer panel so as to be movable up and down.

12 ... Vertical frame part (vertical frame member)
23 ... Beltline reinforcement outer (beltline reinforcement)
23d ... Inner side surface 23e ... Lower rib 23f ... Upper rib 25 ... Outer handle mounting bracket 26 ... Door outer panel 27 ... Outer handle base 29 ... Opening (fragile part)
30 ... Door window glass X1, X2 ... Ridge line

Claims (3)

A door structure of an automobile in which a door window glass is arranged to be movable up and down between a door inner panel and a door outer panel,
A vertical frame member forming a rear side of the side door;
A belt line reinforcement composed of an extruded member made of light metal or light alloy extending forward from the upper part of the vertical frame member,
A panel-shaped outer handle mounting bracket that covers the latch mechanism from the outside in the vehicle width direction and from above is provided at a corner portion between the upper part of the vertical frame member and the belt line reinforcement.
An outer handle base that supports the door outer panel on its inner side is abutted and fixed to the outer handle mounting bracket.
The automobile door structure according to claim 1, wherein the outer handle mounting bracket is inclined so that a lower portion is positioned on an outer side in the vehicle width direction when viewed from the front. The outer handle mounting bracket is formed with a ridge line extending in the vehicle longitudinal direction,
The automobile door structure according to claim 1, wherein a fragile portion is formed on a part of the ridgeline. The beltline reinforcement includes an inner side surface portion facing the outer side surface in the vehicle width direction of the door window glass and extending outward and downward.
A lower rib extending outward and downward from a lower portion of the inner side surface portion;
An upper rib extending upward from the upper part of the inner side surface part,
The automobile door structure according to claim 1 or 2, wherein the outer handle mounting bracket is mounted on the lower rib.

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