JPS61229681A - Setting method of hinge part for car on-off body - Google Patents

Abstract

PURPOSE:To perform coating to a joining surface in time of temporary setting and prevent rust from gathering out of a hinge setting surface as well as to avoid any drop in an image of merchandise, by using a gap holding member in the temporary setting carried out through a hinge for a car body and a car on-off body. CONSTITUTION:When a rear door 3 is temporarily set to a center pillar 1 via a hinge 2, a bolt 4 is inserted into a bolt inserting hole 7 of a hinge piece 2a, and a Belleville spring 9 is attached to a spot facing hole 8, then it is clamped tight with such torque as being smaller than in the normal case. Under this condition, a gap between the hinge piece 2a and a center pillar outer 1a is kept intact. When coating takes place under this condition, a coating material penetrated into the gap between the center outer 1a and the hinge piece 2a, thus a coating film is formed on the surface. Finally, the bolt is regularly clamped tight, and joining surfaces are stuck together closely leaving the coating film formed intact. With this constitution, even if water or the like enters these joining surfaces, rust prevented from gathering there. In this connection, a press-in pin may be used as a gap holding member in place of the Belleville spring.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for assembling a hinge portion of an automobile opening/closing body such as a door when the automobile opening/closing body is assembled to a vehicle body.

(Prior art) Conventionally, the assembly of the automobile opening/closing body to the vehicle body was performed before the painting process in order to reduce the assembly process, and at the time of painting, the mating surfaces of the hinge, the automobile opening/closing body, and the vehicle body were already assembled. While in close contact, they were fixed by a fixing means such as a bolt.

Thereafter, in the painting process, the vehicle body and the opening/closing body of the vehicle were painted over the hinges. This type of hinge structure is described in detail in Sankaido Edition Automobile Industry Complete Book, Volume 13, ``Passenger Car Body''.

(Problem to be Solved by the Invention) However, in the case of such a conventional example, the mating surfaces of the hinge, the vehicle body, and the automobile opening/closing body are already in close contact with each other during the painting process, so The parts that are in close contact with the hinges are not painted.

Therefore, when water enters between the mating surfaces of the hinge and the vehicle body and the automobile opening/closing body, there is a problem in that rust is likely to occur there. Particularly in four-door automobiles, the center pillar where the rear door hinge is attached has a problem in that rust is easily visible when the front door is opened, deteriorating the product image.The present invention solves these problems of the prior art. This was done to solve the problem, and its purpose is to make it possible to apply paint to the mating surfaces of the vehicle body and the hinge of the automobile opening/closing body during the painting process, thereby preventing the occurrence of rust on the hinge access area. The aim is to prevent this as much as possible, thereby avoiding a deterioration of the product image.

(Means for Solving the Problems) Therefore, in order to achieve the above-mentioned object, the present invention provides a method for assembling the opening/closing body of an automobile to a vehicle body via the hinge, by connecting the hinge to the vehicle body and the automobile opening/closing body. A temporary assembly step of interposing a gap maintaining member between the mating surfaces of at least one of the opening/closing bodies to maintain a gap; and a temporary assembly step of assembling the opening/closing body and the vehicle body in the temporarily assembled state. It consists of a painting step of painting, and a main assembly step of moving the gap retaining member inside the mating surfaces by means of a hinge fixing means after painting, and bringing the mating surfaces into close contact and fixing.

(Example) The present invention will be explained below based on the illustrated example. In FIGS. 1 to 5 showing the first embodiment of the present invention, 1 indicates a center pillar of an automobile body, and as shown in FIG. A rear door 3 serving as an opening/closing body for an automobile is attached to the center pillar outer 1a via a hinge 2 so as to be openable and closable.

The hinge 2 consists of a first hinge piece 2a, which has an angular cross section and is fixed to the center pillar outer la, and a second hinge piece 2b, which is fixed to the door inner 3b of the rear door 3, which is composed of a door outer 3a and a door inner 3b. Both hinge pieces 2a and 2b are rotatably supported by a hinge pin 2c. The first hinge piece 2a is fixed to the center pillar 1 by a port 4 as a fixing means, that is, the bolt 4 is fixed to a nut 6 fixed to a reinforcement 5 provided on the back side of the center pillar outer 1a.
It is fixed by screwing it on. In this embodiment, three ports 4 are used, and these port ports 4 are respectively arranged at the apex positions of the triangle so as to fix the hinge 2 in a well-balanced manner.

As shown in FIG. 4, a counterbore hole 8 is formed in the opening on the mounting surface side of the port insertion hole 7 of the first hinge piece 2a, into which an elastic member as a gap holding member is mounted. In this embodiment, a disc spring 9 is used as the elastic member, and during temporary assembly, the gap is sometimes maintained by the spring force of the disc spring 9, and during actual assembly, a predetermined tightening is sometimes performed. When tightened with torque, the disc spring 9 is bent and fitted into the counterbore hole 8, so that the mating surfaces of the first hinge piece 2a and the center pillar outer la are brought into close contact. In other words, the spring force of the countersunk spring 9 is set so that it will leave a gap when the tightening torque of the port 4 is applied during temporary tightening, and it will enter into the counterbore hole 8 when the tightening torque is fully tightened. .

Next, in order to assemble the rear door 3 to the center pillar 1 using such a hinge, the rear door 3 is first temporarily assembled to the center pillar 1 via the hinge 2 on the painting process surface. That is, the port 4 is inserted into the port insertion hole 7 of the first hinge piece 2a, the disc spring 9 is installed in the counterbore hole 8, and the port 4 is tightened with a torque smaller than the regular tightening torque.

In this state, the elastic force of the disc spring 9 allows the first hinge piece 2a to be assembled with a gap maintained between it and the center pillar outer 1a.

Next, paint is applied while maintaining this state. When painting, the paint is applied to the center pillar outer la and the first hinge piece 2a.
The coating film is formed on the surface of the center pillar outer 1.

Finally, tighten Porto 4 with the specified tightening torque.
As shown in FIG. 5, the mating surfaces of the first hinge piece 2a and the center pillar outer 1a are completely fixed in a close contact state. When assembled in this manner, even if water or the like enters between the mating surfaces of the first hinge piece 2a and the center pillar outer layer la, the base metal of the center pillar outer layer 1a is protected by the coating film. Therefore, the occurrence of rust is prevented.

Next, FIGS. 6 to 8 show a hinge mounting structure according to a second embodiment of the present invention, and the same components as in the first embodiment are designated by the same reference numerals. The difference from the first embodiment is that a plurality of press-fit holes 10 are provided in the mating surface of the first hinge piece 2a with the center pillar outer la, and a press-fit pin 11 is press-fitted into the press-fit holes 1O as a gap maintaining member. It is in. The length of the press-fit pin 11 is shorter than the depth of the press-fit hole 10, and during the temporary assembly process, the tip is connected to the hinge 2.
The frictional engagement force between the press-fit pin 11 and the press-fit hole 10 is set in advance so that the press-fit pin 11 and the press-fit hole 10 protrude slightly from the mating surface of the center pillar outer taVC and abut against the center pillar outer taVC to maintain a constant gap. Further, when the bolt 4 is tightened to a predetermined tightening torque, the press-fit pin 11 is completely press-fit to the tip into the press-fit hole 10, so that the mating surfaces are in close contact with each other without any gaps.

Next, a process for assembling such a mounting portion will be explained.

First, before the painting process, the rear door 3 is tightened via the hinge 2 with the bolt 4 and nut 6 until the tip of the press-fit pin 11 contacts the center pillar 1.

The tightening torque at this time is set so that the press-fitting load of the press-fitting pin 11 is set so that the rear door 3 does not shift at the contact surface of the tip of the press-fitting pin during the painting process, and in this state, the gap between it and the center pillar outer 1a is set. It is kept in the same condition.

When the coating process is carried out in this state, the paint penetrates through the gap and is applied to the parts other than the contact surface of the center pillar 1 where the tip of the press-fit bottle 11 comes into contact.

After the painting process, when the port 4 is tightened with a predetermined tightening torque that is greater than the tightening torque during temporary assembly, the press-fit pin 11 is press-fitted into the press-fit hole 10, and the mating surfaces of the hinge 2 and the center pillar outer la are brought into close contact. completely fixed.

Next, FIGS. 9 to 11 show a third embodiment of the present invention, and the same components as those in the first and second embodiments are designated by the same reference numerals and will be described. As in the second embodiment, a press-fit pin 11 is press-fitted into the press-fit hole 10 of the first hinge piece 2a. Furthermore, the bolt insertion hole 7 has a bushing 1.
2 is press-fitted, and the tip of the bushing 12 is press-fitted into the pin 1.
1 protrudes to the same extent as the tip.

The length of the bushing 12 is formed to be equal to or less than the thickness of the first hinge piece 2a, and is press-fitted into the port insertion hole 7 at the time of main assembly to connect the first hinge piece 2a and the center pillar. The mating surfaces of the outer layer 1a can be brought into close contact with each other without any gaps.

In the third embodiment, press-fit pins 11 are provided at two locations so that the hinge 2 can be fixed to the center pillar outer 1a in a well-balanced manner. The bolt insertion holes 7 may be arranged at the apex positions of the triangle, and the bushings 12 may be press-fitted into these three locations.

Further, the press-fit hole 10 of the press-fit pin 11 may be a through-hole 13 as shown in FIG. In this way, the manufacturing cost can be reduced because it can be processed by press punching. Further, the press-fitting pin 11 has a conically tapered end on the press-fitting side to facilitate press-fitting.

In this embodiment, the present invention was applied to the hinge attachment part to the center pillar 1, but it is not limited to the attachment part of the center pillar 1, and can of course also be applied to the hinge attachment part on the door side. Although the explanation has been given using a rear door as an example of an opening/closing body, it goes without saying that the present invention can also be applied to a hinge attachment part of an opening/closing body that is opened and closed via a hinge, such as a front door, a back door, or a trunk lid.

(Effects of the Invention) The present invention has the above-described structure and operation, and maintains a gap between the hinge and at least one of the vehicle body and the opening/closing body for an automobile by a gap retaining member, and temporarily assembles them. After painting, the mounting part of the hinge is tightened with a specified tightening torque to bring it into the fully assembled state, and the mating surfaces are brought into close contact. The mating surface with either side is protected by a coating film, making it possible to prevent rust from forming from the hinge mounting part as much as possible, and further preventing deterioration of the product image due to rust. Effects can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of a main part showing a part of a hinge assembly to which the method of assembling a hinge part of an automobile opening/closing body of the present invention is applied, Fig. 2 is a schematic perspective view showing a front door and a rear door of a vehicle body, and Fig. 3 1 is a cross-sectional view of the hinge attachment part in FIG. 1, FIG. 4 is a perspective view of the first hinge piece of the hinge of the device in FIG. 3, and FIG. FIG. 6 is a perspective view of the first hinge piece of the hinge according to the second embodiment of the present invention, and FIG. 7 shows a temporarily assembled state of the hinge mounting portion using the hinge piece of FIG. 6. FIG. 8 is a cross-sectional view of the main part showing the fully assembled state of the hinge mounting portion of FIG. 7, and FIG. 9 is a cross-sectional view of the first hinge piece of the hinge according to the third embodiment of the present invention. A perspective view, FIG. 10 is a sectional view of a main part showing a temporarily assembled state of the hinge mounting part using the hinge piece of FIG. 9, and FIG. 11 is a sectional view of a main part showing a fully assembled state of FIG. 10. FIG. 12 is a sectional view of a main part showing another aspect of the press-fit pin and the press-fit hole. Explanation of symbols 1...Center pillar 2...Hinges 2a, 2b
...First and second hinge pieces 3...Rear door (automobile opening/closing body) 4...Bolt (hinge fixing means) 6...Nut (hinge fixing means) 8...Counterbore hole 9 ... Belleville spring (gap retaining member) lO... Press-fit hole 11...
Press-fit bottle (gap retaining member) 12...button (gap retaining member)! A Figure 4 Figure 5 Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] When assembling the automobile opening/closing body to the vehicle body via the hinge,
a temporary assembly step of interposing a gap maintaining member between the mating surfaces of the hinge and at least one of the vehicle body and the automobile opening/closing body to maintain a gap; a painting step of painting the automobile opening/closing body and the vehicle body; and a main assembly step of moving the gap retaining member inside the mating surface by means of a hinge fixing means after painting to bring the mating surfaces into close contact and fixing. A method for assembling a hinge part of an opening/closing body for an automobile comprising: