JP3750407B2 - Vehicle door hinge mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door hinge mounting structure for mounting a door of a vehicle such as an automobile to a pillar of a vehicle body.
[0002]
[Prior art]
A laterally opening and turning type door that is mounted on an automobile is mounted on the vehicle body by a hinge member provided on the pillar of the vehicle body, but if the rigidity of the hinge mounting portion of the pillar is low, the hinge mounting portion is deformed, so-called The door may drop. Therefore, in order to reinforce the hinge mounting portion of the pillar, reinforcement measures such as providing a reinforcement inside the pillar are taken, but a further increase in rigidity may be desired.
[0003]
For example, as in the door hinge mounting structure described in Japanese Utility Model Publication No. 4-3854 (conventional example 1), a long collar is bridged between the outer panel and the inner panel constituting the center pillar, and the outer panel is attached to this collar. It has been proposed to increase the rigidity of the hinge mounting portion by passing a long bolt from the outside of the inner panel and by screwing and tightening a nut to the front end of the bolt protruding to the inner side of the inner panel.
[0004]
Further, as in the door hinge mounting structure described in Japanese Utility Model Publication No. 3-57123 (conventional example 2), without using a collar, a long bolt spanned between the outer panel and the inner panel of the hinge mounting portion. In addition, a combination of an outer panel and an inner panel has been proposed. In the case of this conventional example 2, by providing a pair of nuts in the middle part in the longitudinal direction of the bolt, the outer panel and the inner panel are supported from the inner side of the pillar, and the third nut is tightened from the outer side of the inner panel. The door hinge is fixed to the pillar.
[0005]
[Problems to be solved by the invention]
In the case of the conventional example 1, since it is necessary to insert a long bolt into the holes of the outer panel and the inner panel, depending on the position of the edge of the door or the position of the hinge member, the bolt interferes with the door side member when the door is installed. However, the outfitting work may be difficult. Further, since the nut that is screwed into the tip of the bolt protrudes toward the inner side of the inner panel, there is room for improvement, such as the possibility that the injury value of the occupant may increase when a collision is assumed. Moreover, since a long bolt passes through the entire length of the collar, the weight increases and the cost also increases.
[0006]
Also in the case of Conventional Example 2, since it is necessary to insert a long bolt into the holes of the outer panel and the inner panel, depending on the position of the door, the bolt interferes with a member on the door side at the time of fitting, and the fitting work becomes difficult. Sometimes. Further, there is room for improvement in that a nut that is screwed to the tip of the bolt protrudes toward the inner side of the inner panel. Moreover, since at least three nuts are required for each bolt, the number of parts and the number of assembling steps are large, resulting in an increase in cost and weight.
[0007]
Therefore, an object of the present invention is to provide a door hinge mounting structure that can increase the rigidity of the hinge mounting portion, improve the door fitting, reduce the amount of protrusion into the vehicle, light weight, and have a small number of parts. It is in.
[0008]
[Means for Solving the Problems]
To achieve the above object, the door hinge mounting structure of the present invention is the door hinge mounting structure in which the hinge member is fixed to the hinge mounting portion of the pillar by a bolt, as described in claim 1, and the outer panel portion and the inner constituting the pillar. A support pipe assembly provided between the outer panel and the outer panel. The outer panel includes an outer panel and a reinforcing reinforcement provided on the inner side of the outer panel. A base plate welded to the reinforcement, and a support pipe welded to the base plate and extending in the width direction of the vehicle body, and the support pipe is internally threaded on an inner surface of one end portion fixed to the reinforcement of the outer panel portion The other end of the support pipe Was welded to the inner panel, characterized in that for fixing the hinge member is screwed into the female screw portion of the support pipe the bolt with overlaying said hinge member to the outer panel section in the pillar.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a door hinge mounting structure 10 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4.
1, a front door opening 13 is formed on the front side of the center pillar 12, and a rear door opening 14 is formed on the rear side of the center pillar 12. As shown in FIG. A front door (not shown) is attached to the opening 13 on the front side, and a rear door 15 (only part of which is shown in FIG. 2) is attached to the opening 14 on the rear side.
[0010]
As shown in FIG. 2, the center pillar 12 includes an outer panel portion 22 having an outer panel 20 and a reinforcing reinforcement 21, and an inner panel portion 26 mainly composed of an inner panel 25 provided inside the vehicle. A closed cross section is formed between the portion 22 and the inner panel portion 26. A reinforcement may be provided outside the vehicle body of the inner panel 25.
[0011]
As shown in FIG. 1, an upper-side hinge mounting portion 30 and a lower-side hinge mounting portion 31 for mounting the rear door 15 are provided in the middle portion of the center pillar 12 in the vertical direction. At least the upper hinge mounting portion 30 has the door hinge mounting structure 10 according to the present invention. The door hinge mounting structure 10 incorporates a support pipe assembly 40 as shown in FIG. 3 in order to increase the rigidity of the hinge mounting portion 30. If it is desired to increase the rigidity of the lower hinge mounting portion 31, the support pipe assembly 40 may also be provided on the lower hinge mounting portion 31.
[0012]
The support pipe assembly 40 includes a base plate 41 fixed to the reinforcement 21 of the outer panel portion 22 and a pair of upper and lower metal support pipes 42 provided on the base plate 41. The support pipe 42 extends in the width direction of the vehicle body. As shown in FIG. 4, each support pipe 42 is fixed to the base plate 41 by arc welding or the like in a state where the support pipe 42 is fitted in a concave portion 43 having an arc cross section formed in the base plate 41. Reference numeral 44 in the drawing indicates the welded portion. The upper and lower base portions 41a and 41b of the base plate 41 are fixed to the reinforcement 21 by spot welding or the like.
[0013]
A hollow hole 50 is formed in the support pipe 42 over the entire length in the axial direction, and a female screw portion 52 is formed on the inner surface of one end 51 of the support pipe 42, that is, the end located on the outer panel 22 side. Yes. One end 51 of the support pipe 42 is fixed to the inner surface of the reinforcement 21 in advance by arc welding or the like before the inner panel 25 is welded to the outer panel 22. The code | symbol 53 in FIG. 2 has shown the welding part.
[0014]
As shown in FIG. 2, the other end 55 of the support pipe 42, that is, the end located on the inner panel 25 side, is inserted into a hole 56 formed in the inner panel 25. This end 55 protrudes slightly to the outside (inside the vehicle) of the inner panel 25 and is fixed to the inner panel 25 from the outside of the inner panel 25 by arc welding or the like. Reference numeral 57 in the figure indicates the welded portion.
[0015]
The support pipe 42 is fixed to the base plate 41 in advance before both end portions 51 and 55 are welded to the outer panel portion 22 and the inner panel 25. Since the base plate 41 is fixed at a predetermined position of the outer panel portion 22, the posture of the support pipe 42 is maintained, and the end portion 55 of the support pipe 42 can be easily and accurately positioned with respect to the inner panel 25. it can.
[0016]
A hinge member 60 is fixed to the outer surface side of the outer panel 20 with bolts 61. The hinge member 60 and the outer panel portion 22 are formed with attachment holes 63 and 64 for allowing the screw portions 62 of the bolts 61 to pass through. The screw portions 62 of the bolts 61 are connected to the attachment holes 63 and 64 from the outside of the hinge member 60. Further, the hinge member 60 is fixed to the center pillar 12 by being inserted into the female threaded portion 52 of the support pipe 42 and tightened with a tool such as a wrench.
[0017]
A hinge member 66 is pivotally attached to the hinge member 60 so as to be rotatable about a hinge shaft 65 extending in the vertical direction. This movable-side hinge member 66 is fixed to the rear door 15 so that the rear door 15 can be rotated (opened / closed) about the hinge shaft 65.
[0018]
In the door hinge mounting structure 10 having the above-described configuration, the outer panel portion 22 and the inner panel portion 26 of the hinge mounting portion 30 are connected to each other by the support pipe 42. Therefore, the rigidity of the hinge mounting portion 30 is enhanced, and it is extremely effective in preventing the door from falling. It is valid. In the door hinge mounting structure 10, the bolt 61 for fixing the hinge member 60 may be long enough to be screwed into the female thread portion 52 on one end side of the support pipe 42. The length of the bolt 61 can be very short compared to the long bolt used.
[0019]
Therefore, when the door 15 is mounted, when the bolt 61 is inserted into the mounting holes 63 and 64 or screwed into the female screw portion 52, the bolt 61 does not interfere with the front edge portion 15a of the door 15 (for example, an arrow in FIG. 2). (Direction indicated by A) can be inserted, and the door 15 can be fitted without any problem.
[0020]
Since the end portion 55 of the support pipe 42 is welded to the inner panel 25, the amount of protrusion of the end portion 55 toward the vehicle interior is small, which is advantageous in reducing the occupant injury value when a collision or the like is assumed. It is. Since the support pipe 42 is hollow over the entire length, it is lightweight. In addition, since the support pipe 42 also functions as a fastening nut for screwing the bolt 61, a separate nut is unnecessary and the number of parts can be reduced.
[0021]
In the second embodiment shown in FIG. 5, a convex portion 70 such as a hook or protrusion is formed on the outer peripheral side in the vicinity of the end portion 55 of the support pipe 42. The outer dimension D of the convex portion 70 is larger than the inner diameter of the hole 56 provided in the inner panel 25. In this case, by inserting the end portion 55 of the support pipe 42 into the hole 56 of the inner panel 25 and pressing the inner panel 25 against the convex portion 70, the inner panel 25 is accurately positioned at a predetermined position in the axial direction of the support pipe 42 during welding. The inner panel 25 and the support pipe 42 can be easily welded.
[0022]
Or you may form the small diameter part 71 of the outer diameter d in the edge part 55 of the support pipe 42 like 3rd Embodiment shown in FIG. The outer diameter d of the small-diameter portion 71 is set such that it can be just fitted into the hole 56 of the inner panel 25. In this case, it is easy to weld the inner panel 25 and the support pipe 42 by inserting the small diameter portion 71 into the hole 56 of the inner panel 25 and pressing the inner panel 25 toward the stepped portion 72 at the back of the small diameter portion 71. Become.
[0023]
In carrying out the present invention, it goes without saying that the elements constituting the present invention such as the support pipe, the outer panel portion, the inner panel portion, and the hinge member can be appropriately modified and implemented. The present invention can also be applied to a hinge mounting portion of a front pillar for attaching a front door.
[0024]
【The invention's effect】
According to the door hinge mounting structure described in claim 1, the rigidity of the hinge mounting portion can be increased using a support pipe built in the pillar and a short bolt screwed into the support pipe, and a long bolt is used. This eliminates the need for improved workability when doors are installed. Moreover, the nut does not protrude inside the vehicle. And a hinge attaching part can be comprised lightweight with few components.
[Brief description of the drawings]
FIG. 1 is a perspective view of a part of a vehicle body having a door hinge mounting structure according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view of a hinge mounting portion taken along line F2-F2 in FIG.
3 is a perspective view partially showing a support pipe assembly provided on a pillar of the vehicle body shown in FIG. 1. FIG.
4 is a sectional view taken along line F4-F4 in FIG.
FIG. 5 is a cross-sectional view of a support pipe showing a second embodiment of the present invention.
FIG. 6 is a cross-sectional view of a support pipe showing a third embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Door hinge attachment structure 12 ... Pillar 15 ... Door 22 ... Outer panel part 26 ... Inner panel part 30 ... Hinge attachment part 42 ... Support pipe 52 ... Female thread part 60 ... Hinge member 61 ... Bolt

Claims (2)

In the door hinge mounting structure in which the hinge member is fixed to the hinge mounting portion of the pillar by a bolt,
A support pipe assembly provided between the outer panel portion and the inner panel constituting the pillar,
The outer panel portion has an outer panel and a reinforcing reinforcement provided inside the outer panel;
The support pipe assembly is
A base plate whose upper and lower base portions are welded to the reinforcement of the outer panel portion, and a support pipe that is welded to the base plate and extends in the width direction of the vehicle body;
The support pipe has an internal thread portion on an inner surface of one end portion fixed to the reinforcement of the outer panel portion, the other end portion of the support pipe is welded to the inner panel, and the hinge is attached to the outer panel portion. door hinge mounting structure of a vehicle, characterized in that with the bolt screwed into the internal thread portion of the support pipe with overlapping member for fixing the hinge member to the pillar. The other end of the support pipe is inserted into a hole formed in the inner panel, and the inner panel is pressed against the other end of the support pipe when welding the inner panel and the support pipe. 2. The door hinge mounting structure for a vehicle according to claim 1, further comprising a convex portion or a step portion that can be deformed.

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