JPH0328128Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an automobile door hinge device.

BACKGROUND ART A door hinge device for an automobile generally includes a vehicle body side hinge plate fixed to a vehicle body member such as a front pillar or a center pillar, a door side hinge plate fixed to a door, and both the vehicle body side and door side hinges. It is usually constructed in combination with a hinge pin that passes through the plate, and a roller is provided on the door side hinge plate, and a check link with a cam surface on which the roller rolls is rotated on the vehicle body side hinge plate. a spring that presses the check link in a direction in which its cam surface is pressed against the roller, and the roller rolls on the cam surface of the check link when the door is opened; A device that uses the cam shape of the cam surface to moderately maintain the door in a half-open or fully open state, for example, has been developed and disclosed in, for example, Japanese Utility Model Publication No. 58-20764. .

Problems to be Solved by the Invention As mentioned above, the automobile door hinge device has a door checker built into the door hinge that maintains the door in various open states in a controlled manner. The spring attached to the hinge plate on the vehicle body side so as to press the check link in one direction, and the rotation locus of the protruding edge of the front end of the door when the check link operates to open the door. Conventionally, the check links and springs are located far away from the hinge pin attachment points of both the vehicle body and door hinge plates due to various constraints such as the need to avoid interference with the vehicle body and door hinge plates. Therefore, there is a problem in that a door hinge device incorporating a door checker is considerably larger than a door hinge device without a door checker.

The present invention aims to address the problems of conventional devices as described above.

Means for Solving the Problems The present invention provides two parallel walls of the vehicle body side hinge plate and two of the door side hinge plate that are closely opposed to each other on the inside of the two parallel walls of the vehicle body side hinge plate. The parallel walls are connected to each other by independent hinge pins so that they can rotate on the same axis, and the roller is rotatably installed between the two walls of the vehicle body side hinge plate. A check link having a cam surface on one end edge on which the roller rolls is rotatably attached between the two walls of the door side hinge plate, and the check link is urged to rotate toward the roller side. The two walls of the door hinge plate are assembled by a bracket that has a spring receiving portion and is assembled by engaging the engagement steps formed on the support shaft of the check link and the two walls of the door hinge plate. It is characterized by being placed between walls.

Operation As described above, all door checker components such as check links, springs, and rollers are assembled in a state where they are housed between the two walls of both the door side and vehicle body side hinge plates, which are connected by hinge pins. In addition, since there is almost no relative displacement between the check link and spring and the protruding edge of the door when the door is opened/closed, the entire device can be significantly reduced in size and weight.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 4, reference numeral 1 denotes a mounting surface 1a to a vehicle body member such as a pillar, two mutually parallel wall portions 1b bent approximately at right angles from the mounting surface 1a,
It is a vehicle body side hinge plate consisting of 1b′ and 2
are the mounting surface 2a to one end edge of the door and the mounting surface 1a
The door side hinge plate is formed by two wall portions 2b and 2b' which are bent at a substantially right angle and are closely opposed to each other on the inner side of the two wall portions 1b and 1b' of the vehicle body side hinge plate 1. The hinge plates 1 and 2 have opposing walls 1b and 2b and 1b' and 2b' rotated by independent hinge pins 3 and 3', respectively, so that the two hinge pins 3 and 3' are located on the same axis. movably coupled.

As described above, both the hinge plates 1 and 2 are rotatably connected by the two independent hinge pins 3 and 3', so that the two walls 2b and 2b' of the door-side hinge plate 2 are rotatably connected. A space is created between the hinge pins that will not interfere with the hinge pins,
A check link 4 and a spring 5 that presses the check link 4 in one direction are disposed within the space.

That is, the two walls 2 of the door side hinge plate 2
A cam surface 4 on which a roller 8 (described later) rolls on one end edge is attached to a shaft 6 whose both ends are fitted and fixed to b and 2b'.
Check link 4 formed with a, 4b, 4c, etc.
The base of the check link 4 is rotatably mounted so that the check link 4 can rotate between the two walls 2b and 2b' of the door side hinge plate 2 in a plane parallel to the walls 2b and 2b'. It consists of

Further, the spring 5 is removably mounted between the two wall portions 2b and 2b' of the door side hinge plate 2 by a bracket 7.

As shown in FIGS. 5 and 6, the bracket 7 includes a spring receiving portion 7a that supports one end of the spring 5, and both side surfaces 7b along the inner sides of the two wall portions 2b and 2b' of the door side hinge plate 2. , 7b', and protruding engaging portions 7c and 7c' that engage with the shaft 6 of the check link 4 are formed on the edges of both side surfaces 7b and 7b', and Engagement pieces 7d and 7d that engage with engagement steps 2c and 2c' formed at the tips of the two walls 2b and 2b' of the door-side hinge plate 2 are provided at the tip edges of both side surfaces 7b and 7b'. With one end of the spring 5 engaged with the spring receiving portion 7a of the bracket 7, the other end of the spring 5 is applied to the check link 4, and the bracket 7 is bent. The engaging portions 7c, 7c' of the door side hinge plate 2 are engaged with the shaft 6, and the engaging pieces 7d, 7d' are engaged with the engaging stepped portions 2c, 2c' at the ends of the two wall portions 2b, 2b' of the door side hinge plate 2. By engaging the spring 5, the two walls 2
The check link 4 is assembled between b and 2b' in a biased state so as to rotate in the direction of the roller 8.

In this assembled state, the spring reaction force of the spring 5 is applied to the engaging portions 7c, 7c' of the bracket 7 and the engaging piece 7.
d and 7d' are strongly engaged in the direction of engagement with the shaft 6 and the engagement step portions 2c and 2c', so that the bracket 7 will not come off and fall off.

The roller 8 rolling on the cam surface of the check link 4 is rotatably supported by a shaft 9 whose both ends are fitted and fixed to the two walls 1b and 1b' of the vehicle body side hinge plate 1. There is.

The hinge device configured as described above has the mounting surface 2a of the door side hinge plate 2 as shown in FIG.
is joined to one end surface 10a of the door 10 and fixed with a bolt or the like, and the mounting surface 1a of the vehicle body side hinge plate 1 is joined to, for example, the front pillar 11 and fixed with a bolt or the like, and the door 10 is attached to the hinge pin of the hinge device. 3 and 3', and when the door 10 is opened and closed about the hinge pins 3 and 3', the check link 4 attached to the door side hinge plate 2 The roller 8 rotates around the hinge pins 3 and 3' while being pressed against the roller 8 by the spring 5, and the roller 8 attached to the hinge plate 1 on the vehicle body side relatively rolls on the cam surface of the check link 4. For example, when the door is opened, the roller 8 reaches from the first cam surface 4a to the second cam surface 4b when the door is half open.
By fitting the roller 8 into the second cam surface 4b, the half-open state is maintained with moderation, and when the door is further operated in the opening direction, the roller 8 climbs over the second cam surface 4b and moves to the third cam. When reaching the surface 4c, the door is kept fully open with moderation. When the door is closed, contrary to the above, the roller 8 relatively rolls on the cam surface of the check link 4 from the third cam surface 4c to the second cam surface 4b and then to the first cam surface 4a. do.

In the above, the protruding edge 1 of the door protrudes to cover the outside of the hinge device when the door is opened.
0b is rotated inward from a state where it is substantially flush with the fender 12 as shown by the chain line in FIG. It is disposed between the walls 2b and 2b', rotates together with the door, and has almost no relative displacement with the door protruding edge 10b, so that the check link 4 and spring 5 and the door protruding edge 10b There is no need to worry about interference.

Further, the door checker consisting of the check link 4, spring 5 and roller 8 is all disposed between the two wall surfaces 2b and 2b' of the door side hinge plate 2 and between the two wall surfaces 1b and 1b' of the vehicle body side hinge plate 1. Because of its structure, it can be made approximately the same size as a normal hinge device that does not incorporate a door checker, and the entire door hinge device with a door checker can be significantly reduced in size and weight.

Furthermore, it is extremely troublesome to fit the spring 5 into the very narrow space between the two walls 2b and 2b' of the door side hinge plate 2 in a highly compressed state. When assembled into the bracket 7 which also serves as a receiver, the bracket 7 is engaged with the rotation shaft 6 of the check link 4 and the engagement steps 2c and 2c' formed on the two walls 2b and 2b' of the door side hinge plate 2. Since the springs 5 are assembled together, the assembly work of the spring 5 is significantly simplified, and work efficiency can be greatly improved.

Effects of the invention As described above, according to the invention, it is possible to significantly reduce the size and weight of a door hinge device with a door checker and simplify the assembly work by using extremely simple measures. There is no need to worry about interference between check links, springs, etc. and the protruding edge of the door.
It is possible to greatly expand the degree of freedom in design, and it can bring about great practical effects.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention; FIG. 1 is a front view, and FIGS. 2, 3, and 4 are views taken from the X, Y, and Z arrows in FIG. It is a diagram. Fifth
Figures A, B, and C are a front view, side view, and plan view of the spring support bracket, and Figure 6 is a perspective view illustrating how the spring is assembled. FIG. 7 is a diagram illustrating the operating mode of the door hinge device according to the present invention. 1... Vehicle side hinge plate, 2... Door side hinge plate, 1b, 1b', 2b, 2b'... Wall, 3, 3'... Hinge pin, 4... Check link, 5... Spring, 7 ...Bracket, 8
...Roller, 6,9...Axis, 10...Door, 11
...Front pillar.

Claims (1)

[Scope of utility model registration request] The two parallel walls of the vehicle body side hinge plate attached to the vehicle body side and the two parallel walls of the vehicle body side hinge plate attached to the vehicle body side.
The two parallel walls of the door-side hinge plate, which are closely opposed to each other, are connected to the inside of the two parallel walls so that the closely opposed walls can be rotated on the same axis using independent hinge pins. A roller is rotatably installed between the two walls of the hinge plate on the vehicle body side, and a check link, which has a cam surface on one end on which the roller rolls, is rotated between the two walls of the hinge plate on the door side. A spring that is movably attached and urges the check link to rotate toward the roller is engaged with a shaft that rotatably supports the check link and has a spring receiving portion that supports one end of the spring. An automobile use device characterized in that the bracket is assembled between the two walls of the door-side hinge plate by engaging with the engagement stepped portions formed on the two walls of the door-side hinge plate. door hinge device.