JP3249675B2 - Vehicle door frame structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door frame structure of a vehicle having a mounting structure for mounting a retrofit.

[0002]

2. Description of the Related Art A door of a vehicle is, for example, a door frame 103 having a hollow sectional shape which forms a frame for a door glass 102 on a door panel 101 like a back door shown in FIG.
Are often combined. A rear part (not shown) such as a door mirror or a ladder may be attached to the door frame 103 of such a door. Such retrofit parts are conventionally mounted in a manner as shown in FIGS. That is, a structure for sandwiching the upper end of the door frame 103 is provided on a bracket 104 as a retrofit part, and a fastening type (FIG. 8) in which the upper end of the door frame 103 is sandwiched by fastening bolts 105 is used. , A hole in the door frame 103 and a tapping screw 106
Attach the bracket 104 as a retrofit part to the door frame 103
(Refer to Fig. 9)
It is.

[0003]

In mounting the above-mentioned conventional retrofitted parts to the door frame 103, if the mounting method is not good at all with the clamping type, the upper end of the door frame 103 is clamped. There is a problem that the bracket 104 of the retrofitting part hinders the opening and closing of the door. That is, as shown in FIG. 8, the upper end of the door frame 103 has a predetermined gap with the drip channel 107 of the roof panel, and this gap is formed by the bracket 104 of a retrofitting part that clamps the upper end of the door frame 103. As a result, the bracket 104 and the drip channel 107 may interfere with each other and hinder opening and closing of the door. Also, a part of the bracket 104 pushes the door weather strip 108 mounted on the inside of the door frame 103 back inside the vehicle as shown in FIG. There is also a disadvantage that the adhesion to the upper end is impaired and water easily enters.

In the direct mounting type, the door frame 10
There is a disadvantage that a nut cannot be interposed in the hollow portion of No. 3 and only a weak holding force can be obtained simply by tightening with the tapping screw 106. When an external force is applied from the retrofitting part side, the door frame 103 of the mounting portion is deformed. Sometimes it does. In addition, since the hole formed in the door frame 103 faces the outside, the tapping portion is easily rusted, and there is a problem that water enters therefrom.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned conventional problems. The first object of the present invention is to provide a retrofit part for a door frame by disposing a part which hinders opening / closing of a door or invades water. A second object of the present invention is to provide a vehicle door frame structure that can be securely mounted without fear.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a door frame structure of a vehicle which can be easily manufactured and handled so that retrofit parts to the door frame can be securely attached without obstructing opening and closing of the door and without fear of water intrusion.

[0006]

According to a first aspect of the present invention, there is provided a door frame structure for a vehicle, wherein the door frame structure has a hollow cross section and is connected to a door panel to form a frame for the door glass. A series of groove-shaped recesses formed along the door frame in such a manner as to be depressed in the hollow portion on the surface of the vehicle, and the groove-shaped recessed portion is wider than a mouth portion facing the outside surface of the vehicle. The structure is characterized in that a nut for attaching a retrofit part to the door frame is sealed in the rear part so as to be movable in the rear part.

According to a second aspect of the present invention, there is provided a door frame structure for a vehicle, wherein the door frame structure has a hollow cross-section and is connected to a door panel to form a frame for the door glass. A series of groove-shaped recesses are formed along the door frame in the form of being depressed in the hollow portion, and the groove-shaped recess is formed into a bag structure in which the back portion is wider than the mouth portion facing the outside surface of the vehicle. A nut for inserting a retrofit part to the door frame, which can be inserted into and removed from the mouth portion inside the back portion thereof, and which is hung on the mouth portion by internal rotation, is inserted.

[0008]

According to the first aspect of the present invention, the nut sealed in the deep portion of the groove-shaped concave portion of the door frame is moved to the mounting portion in the deep portion, and the nut is used to attach a retrofit part. Can be fastened to the door frame by bolts.

According to the second aspect of the present invention, a nut is inserted from a mouth portion into a deep portion of the groove-shaped concave portion at a mounting portion of the door frame, and a retrofit part is fastened by a bolt using the nut. If this is done, the nut rotates in the inner part with the fastening and stops at the mouth, so that the retrofit part can be attached to the door frame.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. (Embodiment 1) As shown in FIG. 2, a back door D of a vehicle according to this embodiment has a structure in which a door frame 3 having a hollow cross section that forms a frame for a door glass 2 is joined to an upper portion of a door panel 1. On the outer surface of the door frame 3, a series of groove-shaped concave portions 4 are formed in a curtain rail shape along the entire periphery of the door frame 3 so as to be depressed in a hollow portion thereof. As shown in FIG. 1, the groove-shaped concave portion 4 has a bag structure in which a back portion 5 is wider than a mouth portion 6 facing the outside surface of the vehicle, and a door mirror or rudder or the like is provided in the back portion 5. A nut 8 for attaching a retrofit part 7 to be attached to the frame 3 is sealed so as to be movable in the inner part 5.

The mouth portion 6 is formed as a narrow slit by a double-folded opposed flange portion 9, and the back portion 5 is formed as a rectangular tubular portion bulging inside the flange portion 9. . Therefore, as shown in FIG. 1, the door frame 3 has a hollow jacket tube structure. The inner portion of the rear portion 5 facing the mouth portion 6 is provided with a recess 10 toward the inside of the vehicle. The nut 8 can move in a plane in the rear part 5, but if the screw hole 11 takes a movement posture other than the posture facing the mouth part 6, the rear part 5 cannot move.
Is regulated by the inclusion relationship.

The nut 8 before or after the retrofit part 7 is not mounted is located at the lower part of the door frame 3. In this state, an elongated molding 12 is detachably attached to the mouth portion 6 of the groove-shaped recess 4 of the door frame 3 as shown in FIG.
Coated with As shown in FIG. 3, the molding 12 is mounted by hooking a mounting leg 13 configured to be elastically deformable from the mouth portion 6 to the inside of the flange portion 9. The nut 8 in an unused state is elastically pressed into the groove-shaped recess 4 by the mounting legs 13 of the molding 12, and the movement of the nut 8 is restricted. The number of the nuts 8 is one or more depending on the retrofit part 7.

In FIG. 1, reference numeral 14 denotes a door weather strip mounted on the inside of the door frame 3 on the vehicle, and reference numeral 15 denotes a door glass weather strip mounted on the inside of the door frame 3.

The retrofit part 7 is attached to the door frame 3 as follows. First, the molding 12 is removed from the door frame 3, the nut 8 below the groove-shaped recess 4 is moved to the mounting position, the molding 12 of the portion is deleted, and the molding 12 is attached again to the other parts (FIG. 4). As a result, the nut 8 does not largely move from the mounting position. Thereafter, the bracket 16 of the retrofit part 7 such as a door mirror is adjusted to the mounting position, the position of the nut 8 is adjusted, and the bolt 17 is inserted from the outside of the bracket 16 so that the screw hole 11 of the nut 8 in the groove-shaped recess 4 is formed. And a bolt 17 is screwed into it. As a result, the bracket 16 is pressed by the bolt 17 and the nut 8 against the double-structured flange portion 9 of the mouth portion 6 and is firmly fixed. When there are two mounting locations, this operation is performed for two locations. As described above, the configuration of the upper end of the door frame 3 does not change even when the retrofit part 7 is attached, so that the opening and closing of the back door D is not hindered and the close contact of the door weather strip 14 is not impaired. Further, since there is no factor that impairs the surface treatment of the door frame 3 or the like, rust is not generated by the mounting. Note that the recess 10 in the back portion 5 functions as a relief for the tip of the bolt 17.

(Embodiment 2) This embodiment is similar to Embodiment 1 described above.
In this embodiment, the nut 8 is not enclosed, and can be incorporated into the groove-shaped concave portion 4 when the retrofit part 7 is mounted. The configuration is the same as that of the first embodiment except for the configuration related to the nut 8. Therefore, the same portions as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

That is, the nut 8 of this embodiment has a parallelogram, a rectangle, as shown in FIGS.
It is configured to have an outer shape such as an ellipse whose horizontal dimension is different from its vertical dimension. The longer dimension side is set to be approximately the same as or slightly larger than the width of the inner part 5 of the groove-shaped concave portion 4,
The short dimension side is set slightly smaller than the width of the mouth portion 6.

Therefore, as shown in FIGS. 5A, 5B and 5C, if the nut 8 is made to have a short dimension, for example, in a horizontal direction, the nut 8 can pass through the mouth portion 6 and be inserted into the back portion 5. ,
As shown in (a), (b), and (c) of FIG. 6, if the user rotates inside the back part 5, the person cannot get out of the mouth part 6. That is, when the retrofit part 7 is mounted, the nut 8 is inserted into the groove-shaped recess 4 at the mounting location as described above,
If the bolt 17 from the side is screwed in, the nut 8 rotated in the depth part 5 stops on the flange part 9 of the mouth part 6 and can be used for fastening the retrofit part 7 as in the first embodiment. This makes the door frame 3 easier to manufacture and easier to handle than the first embodiment in which the nut 8 is sealed in advance. The other functions are the same as those of the first embodiment, and the description thereof will be omitted.

Although both of the above embodiments have been described with reference to the case of a back door D of an RV vehicle, a four-wheel drive vehicle, etc., the present invention is not limited to this case, and is widely applied to a general door frame structure of vehicles. It is possible.

In addition, an elongated molding covering the groove-shaped recess is provided on the series of groove-shaped recesses along the door frame according to the first or second aspect of the present invention so as to be detachable and press a nut. The door frame structure can be configured to be mounted in an upright state. In this case, mounting of the retrofit parts is performed with the molding removed, and a molding is mounted on the exposed groove-shaped recess after the retrofitting part is attached to close the groove-shaped recess, thereby improving the appearance and appearance of the door frame. Can be improved.

[0020]

As is apparent from the above description of the embodiment, according to the first aspect of the present invention, since the configuration of the upper end of the door frame does not change at all even when retrofit parts are attached, there is no problem in opening and closing the door. In addition to preventing damage to the weatherstrip and preventing the intrusion of water, there is no factor that impairs the surface treatment of the door frame. Fastening allows for secure attachment of retrofit parts.

According to the second aspect of the present invention, since the configuration of the upper end of the door frame does not change at all even when the retrofit parts are attached, the weather strip prevents opening and closing of the door and prevents water from entering. Not only do not impair the close contact of the door frame, but also cause no rust because there are no factors that impair the surface treatment of the door frame. As well as the production of door frames,
The handling of the nut is also easy.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view showing the configuration of a door frame as one embodiment of the present invention in a state where retrofit parts are attached.

FIG. 2 is a perspective view of the entire door showing the embodiment of the present invention.

FIG. 3 is an enlarged sectional view taken along line AA of FIG. 2;

FIG. 4 is a perspective view showing the door frame in a state where retrofitting parts are attached to the embodiment of the present invention.

FIG. 5 is a front view showing a grooved concave portion and a nut inserted state according to another embodiment of the present invention. FIGS. 5 (a), 5 (b) and 5 (c) show the case of nuts having different shapes.

FIG. 6 is a front view showing a state in which the nut of FIG. 5 is prevented from coming off. FIGS. 6A, 6B, and 6C show mounting positions of nuts having different shapes.

FIG. 7 is a perspective view showing an entire door of a conventional vehicle.

8 is an enlarged cross-sectional view showing a configuration taken along line BB in FIG. 7 in a state where a retrofit component is attached.

FIG. 9 is an enlarged cross-sectional view as another conventional example, showing a configuration taken along line BB in FIG. 7 in an attached state of a retrofit part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door panel 2 Door glass 3 Door frame 4 Groove-shaped recess 5 Back part 6 Mouth part 7 Retrofit parts 8 Nut 11 Screw hole 17 Bolt

Claims (2)

(57) [Claims] 1. A series of groove-shaped recesses formed along a side of a door frame having a hollow cross-sectional shape, which is connected to a door panel and forms a frame body for a door glass, in a form depressed in the hollow portion. The groove-shaped recess is formed into a bag structure in which the back portion is expanded from the mouth portion facing the outer surface of the vehicle, and a nut for attaching a retrofit component to the door frame is provided in the back portion. A door frame structure for a vehicle, wherein the door frame structure is sealed so as to be able to move inside the back part. 2. A series of groove-shaped recesses formed along the door frame in such a manner as to be recessed in the hollow portion of the door frame having a hollow cross-sectional shape which is joined to the door panel and forms a frame for the door glass. In addition, the groove-shaped recess is formed into a bag structure in which the back portion is expanded from the mouth portion facing the outer surface of the vehicle, so that the recess portion can be taken in and out of the mouth portion from the mouth portion, and the inside can be rotated by the rotation. A door frame structure for a vehicle, characterized in that a nut, which is hung on a mouth portion and is provided for attaching a retrofit part to the door frame, is inserted.