JPH08151846A - Hinge device - Google Patents

Abstract

PURPOSE: To easily manufacture and easily fit a hinge device. CONSTITUTION: This hinge device is provided with a fixed hinge member 2 fixed to a car body panel 4, a rotary hinge member 3 fixed to a back door glass 6 arranged adjacently to the car body panel 4, and a shaft 5 rotatably connecting the fixed hinge member 2 and rotary hinge member 3. The fixed hinge member 2 and rotary hinge member 3 connected by a connection section 20 having a small-cross sectional portion 21 are molded with a resin in this hinge device. The fixed hinge member 2 is fixed to a base, the rotary hinge member 3 is fixed to the back door glass 6, then the back door glass 6 is rotated centering on the shaft 5, the rotary hinge member 3 is separated from the fixed hinge member 2, and the connection section 20 is automatically cut off at the small-cross sectional portion 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge device, and more particularly to a hinge device capable of integrally forming a fixed hinge member fixed to a support and a rotary hinge member fixed to a lid.

[0002]

2. Description of the Related Art For example, as shown in FIG. 10, a back door glass 6 is rotatably attached to a rear portion of an automobile by a glass hatch hinge 1. Glass hatch hinge 1
11 and 12, the fixed hinge member 2 fixed to the vehicle body panel 4 of the automobile as a support and the rotation fixed to the back door glass 6 as a lid arranged adjacent to the vehicle body panel 4. And a hinge member 3. The fixed hinge member 2 and the rotary hinge member 3 are rotatably attached by a shaft 5. The fixed hinge member 2 is a nut 10.
A fixed bracket portion 7 having a fixing bolt portion 7a fixed to the vehicle body panel 4 and a fixed resin portion 2a made of resin mounted on the fixed bracket portion 7 are provided. The rotary hinge member 3 is provided with a boss 3d having a screw hole 3e formed therein. A rotating bracket portion 8 fixed to the back door glass 6 by attaching a bolt 11 to the screw hole 3e via the pad 9 and the washer 12, and a rotating bracket portion 8
And a rotating resin portion 3a attached to the. The rotating resin portion 3a has a pair of arm portions 3b and a U-shaped recess 3c formed between the arm portions 3b. The protruding portion 2b of the fixed resin portion 2 is fitted in the recess 3c, so that the arm portion 3b. The shaft 5 is inserted into the coaxial hole 12 formed in the protrusion 2b. The fixed resin portion 2a and the rotating resin portion 3a are molded from a resin such as polycarbonate, polyacetal, polyvinyl chloride or the like, and the surface of the molded resin is plated with a decorative metal such as nickel.

[0003]

By the way, when the conventional hinge member 1 is manufactured, a mold for resin molding the fixed hinge member 2 and a mold for resin molding the rotary hinge member 3 are separately manufactured, The fixed hinge member 2 and the rotary hinge member 3 had to be manufactured independently by each mold. Further, when assembling the fixed hinge member 2 and the rotary hinge member 3, the hole formed in the fixed hinge member 2 and the hole formed in the rotary hinge member 3 are fixed so as to be coaxial with each other, and these holes are fixed. The fixed hinge member 2 and the rotary hinge member 3 must be pivotally attached by mounting a bush and a pin on the. Further, at the time of assembly, after fixing the rotary hinge member 3 to the back door glass 6, the fixed hinge member 2 is fixed to the vehicle body panel 4, but the fixed hinge member 2 is pivotally attached to the rotary hinge member 3 and is rotated. It becomes difficult to fix the fixed hinge member 2 in a predetermined hole of the vehicle body panel 4 because it hangs around.

Therefore, an object of the present invention is to provide a hinge device which is easy to manufacture and install.

[0005]

A hinge device according to the present invention comprises a fixed hinge member fixed to a support, a rotary hinge member fixed to a lid disposed adjacent to the support, and a fixed hinge member. A rotary hinge member and a shaft rotatably attached to the rotary hinge member. A fixed hinge member and a rotary hinge member, which are connected to each other by a connecting portion having a small cross section, are molded of resin. When one of the fixed hinge member and the rotary hinge member is rotated about the shaft, the rotary hinge member is separated from the fixed hinge member, and the connecting portion is automatically cut at the small cross section. The fixed hinge member includes a fixed resin portion and a metal fixing bolt portion fixed to the support and embedded in the fixed resin portion.
The rotating hinge member includes a rotating resin portion and a boss fixed to the support and formed on the rotating resin portion. The fixing bolt portion is fixed to the support, the boss of the rotating resin portion is fixed to the lid, and the fixing resin portion and the rotating resin portion are cut at the small cross-section portion of the connecting portion. After the fixed hinge member is fixed to the support and the rotary hinge member is fixed to the lid, when the lid is rotated about the shaft, the connecting portion is cut. The connecting portion is arranged at a position where it does not interfere with each other when the fixed hinge member is fixed to the support and the rotary hinge member is fixed to the lid.

[0006]

In manufacturing, the fixed hinge member and the rotary hinge member can be integrally molded in the mold. Further, since the fixed hinge member is connected to the rotary hinge member at the time of manufacturing through the connecting portion, the shaft can be easily inserted into the holes formed in the fixed hinge member and the rotary hinge member and coaxially arranged. . Further, when attaching the hinge member to the indicator, when the rotary hinge member is fixed to the lid, the fixed hinge member does not sway and can be easily fixed to the support.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a hinge device according to the present invention will be described below with reference to FIGS. 1-9, FIGS.
The same parts as those shown in FIG. 12 are designated by the same reference numerals,
Description is omitted.

A substantially central portion of the protruding portion 2b of the fixed hinge member 2 and a substantially central portion of the concave portion 3c of the rotary hinge member 3 are connected by a connecting portion 20 having a small cross section 21. As shown in FIG. 3, a stepped through hole 3d is formed in one arm portion 3b of the rotating resin portion 3a, and a receiving portion 3e is formed in the other arm portion 3b. A through hole 2c is formed in the protruding portion 2b of the fixed resin portion 2, the shaft 5 is inserted through the through hole 3d and the through hole 2c, and one end 5a of the shaft 5 is arranged in the receiving portion 3e. The other end 5b of the shaft 5 is knurled to prevent the shaft 5 from being pulled out. A shaft 5 is provided between the protrusion 2b and each arm 3b.
The spacer 2d attached to is arranged.

When manufacturing the hinge device according to the present invention, first, the fixed hinge member 2, the rotary hinge member 3, and the connecting portion 20 having the small cross-section portion 21 connecting the fixed hinge member 2 and the rotary hinge member 3 are provided. The hinge member 15 is integrally resin-molded. As shown in FIG. 4, the small cross section 21 provided in the connecting portion 20 is formed to have a thickness of approximately 0.5 mm. When resin-molding the hinge member 15, the metal fixing bolt portion 7a is embedded in the fixed resin portion 2a, and the boss 3d is integrally formed in the rotating resin portion 3a. Next, the washer 13
The fixed hinge member 2 is fixed to the vehicle body panel 4 using the cap nut 10 and the back door glass 6 arranged adjacent to the vehicle body panel 4 is rotated using the washer 12 and the cap nut 11. The hinge member 3 is fixed and the fixed hinge member 2 and the rotary hinge member 3 are connected by the shaft 5.

When the back door glass 6 is rotated from the closed position to the open position shown in FIG. 4 with the hinge device of the present invention attached to the vehicle body panel 4 and the back door glass 6 of the automobile, the rotary hinge member 3 moves to the shaft 5. By rotating around the radius R, as shown in FIGS. 8 and 9, the connecting portion 20 automatically breaks at the small cross-section portion 21 of the connecting portion 20. In this case, since the operator pulls the lower edge of the back door glass 6 upward, the distance from the shaft 5 to the lower edge of the back door glass 6 is large. Therefore, even if the force for pulling the lower edge of the back door glass 6 upward is small, a large rotational force (moment) can be obtained, so that the breaking operation of the connecting portion 20 can be easily performed. In another embodiment shown in FIGS. 6 and 7,
Once the connecting portion 20 is broken, the rotary hinge member 3 rotates around the shaft 5 with respect to the fixed hinge member 2, but the opposite breaking portions of the rotary connecting portion 20 cross over each other, that is, the rotary hinge member 3 is rotated. Is not rotated in the direction of coming into contact with the fixed hinge member 2, so even if the surface of the hinge device is plated, the fixed hinge member 2 and the rotating hinge member 3 do not come into contact with each other, so that they are not damaged during operation. Further, since the breaking portion is not formed outside the hinge device, there is no problem that the breaking portion is caught by the operator.

As described above, the fixed hinge member 2 and the rotary hinge member 3 can be integrally molded in the mold during manufacturing.
In addition, since the fixed hinge member 2 is connected to the rotary hinge member 3 through the connecting portion at the time of manufacture, the through hole alignment work can be omitted, and the fixed hinge member 2 and the rotary hinge member 3 are formed and are coaxial with each other. The shaft 5 can be easily inserted into the hole arranged in the. Furthermore, when the hinge member is attached to the indicator, when the rotary hinge member 3 is fixed to the back door glass 6, the fixed hinge member 2 does not hang and can be easily fixed to the support.

The embodiment of the present invention is not limited to the above-mentioned embodiment, but can be modified. For example, the example in which the back door glass 6 is applied to the structure for attaching the back door glass 6 to the vehicle body panel 4 has been shown, but the hinge device of the present invention can be attached to another lid or rotation opening portion. The surface of the hinge device may be plated as needed.

[0013]

As described above, the hinge device according to the present invention is advantageous in that it is easy to manufacture and install and the number of parts is small.

[Brief description of drawings]

FIG. 1 is a plan view of a hinge device according to the present invention.

FIG. 2 is a side view of a hinge device according to the present invention.

FIG. 3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a cross-sectional view of a hinge device according to the present invention during manufacturing.

FIG. 5 is a cross-sectional view showing a state in which the hinge device according to the present invention is attached to an automobile.

FIG. 6 is a cross-sectional view showing a state in which a rotary hinge member is rotated to cut a connecting portion.

FIG. 7 is a sectional view showing a state in which a connecting portion is broken.

FIG. 8 is an enlarged cross-sectional view of the connecting portion before fracture.

FIG. 9 is an enlarged cross-sectional view of the connecting portion after fracture.

FIG. 10 is a perspective view showing a rear portion of an automobile equipped with a back door glass.

11 is a sectional view of the hinge device attached to the automobile shown in FIG.

FIG. 12 is an exploded perspective view showing a mounting state of a conventional hinge device.

[Explanation of symbols]

1 ... Glass hatch hinge, 2 ... Fixed hinge member,
2a ... Fixed resin part, 2b ... Projection part, 3 ... Rotating hinge member, 3a ... Rotating resin part, 3b ... Arm part, 3c ... Recessed part, 4 ... Body panel, 5 ... Shaft, 6 ..Back door glass, 7 ... Fixed bracket part, 8 ... Rotating bracket part, 20 ... Connection part, 21 ... Small cross-section part,

Claims (4)

[Claims] 1. A fixed hinge member fixed to a support,
In a hinge device including a rotary hinge member fixed to a lid arranged adjacent to a support, and a shaft rotatably pivoting the fixed hinge member and the rotary hinge member, a connecting portion having a small cross section The fixed hinge member and the rotary hinge member, which are connected to each other by, are molded of resin, and when one of the fixed hinge member and the rotary hinge member is rotated around the shaft, the rotary hinge member is separated from the fixed hinge member. The hinge device is characterized in that the connecting portion is automatically cut at the small cross-section portion. 2. The fixed hinge member includes a fixed resin portion and a metal fixing bolt portion fixed to the support body and embedded in the fixed resin portion, and the rotary hinge member is fixed to the rotary resin portion and the support body. And the boss formed on the rotating resin portion, the fixing bolt portion is fixed to the support, the boss of the rotating resin portion is fixed to the lid, and the fixing resin portion and the rotating resin portion are small cross-section portions of the connecting portion. The hinge device according to claim 1, which is cut. 3. The connecting portion is cut when the fixed hinge member is fixed to the support and the rotary hinge member is fixed to the lid and then the lid is rotated about the shaft.
The hinge device according to. 4. The hinge device according to claim 1, wherein the connecting portions are arranged at positions that do not interfere with each other when the fixed hinge member is fixed to the support and the rotary hinge member is fixed to the lid.