JPS594810Y2 - automotive door hinge - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a link and a guide mechanism between the vehicle body bracket to be attached to the vehicle body and the door bracket to be attached to the door, and the direction in which the door is moved away from the vehicle body when the door is opened. This invention relates to an automobile door hinge that can be rotated.

Conventional automotive hinges are constructed so that the door bracket rotates around a fixed axis relative to the vehicle body bracket, so when the door is opened, the edge of the door is moved toward the entrance. Enter.

Due to the body design of modern cars, the upper part of the car body is curved inward, and when the doors of such cars are opened, the space above the entrance is severely restricted, and the rear door in particular has a large area around people's heads when getting in and out. There is a risk of damaging the parts.

The purpose of the present invention is to solve this problem by connecting and pivoting a bracket to be attached to the vehicle body and a bracket to be attached to the door via a link, and when the door is opened by the door bracket. To provide a door hinge for an automobile, comprising a guide mechanism for rotating the bracket in a direction away from a vehicle body, and a biasing means for biasing the link in a door opening direction.

Hereinafter, details of the present invention will be explained with reference to illustrated embodiments.

Fig. 1 shows the open state of a rear door D of a car attached to a car body B using the hinge 1 of the present invention as an upper hinge and a ball joint type hinge 7 as a lower hinge. The rear door D rotates to form part of a cone with the lower hinge 7 at its apex, and when opened, the upper edge of the rear door D on the vehicle body side is spaced outward to widen the entrance space and facilitate entry and exit.

As shown in Fig. 2 (front view), Fig. 3 (left side view), and Fig. 4 (top view), the upper hinge 1 is attached to a vehicle body bracket 2 having a U-shaped cross section and a door to be attached to the vehicle body. A door bracket 3 having a U-shaped cross section to be installed;
Bracket 2 is a loose fit within bracket 3.

A shaft 23 is installed between the upper and lower flange parts 21 and 22 of the vehicle body bracket 2, and pins 33.3 are installed at the ends of the upper and lower flange parts 31, 32 of the door bracket 3, respectively.
4 is provided, and the upper end of the shaft 23 and the pin 33 and the shaft 23
The lower end portion of the pin 34 is a flat link 41.
・It is connected at 42.

The links 41 and 42 are rotatable relative to the shaft 23, and the door bracket 3 is rotatable relative to the links 41 and 42, respectively.

A coil spring 5 is disposed between the pivoting end of the link 41 to the pin 33 and the outer front end of the upper flange 21 of the vehicle body bracket 2 in a state where it is attached to the vehicle body.
The link 41 and the tip of the upper flange portion 31 of the door bracket 3 pivotally connected to the link 41 are urged to rotate clockwise.

In addition, a pin 33 is provided at the outer corner of the upper flange portion 21 of the vehicle body bracket 2 near the door when the door is closed.
An arcuate guide groove 24 centered at the axis Y position is provided through the door, and a pin 35 installed between the upper and lower flange portions 31 and 32 of the door bracket 3 is inserted through the groove 24.

The illustrated door hinge device uses the above-mentioned hinge of the present invention as an upper hinge and a ball joint type hinge 7 as a lower hinge. This is a normal hinge in which the two are connected by a ball joint mechanism 10.

When the upper hinge 1 and the lower hinge 7 are installed, the shaft 23 and pin 35 of the upper hinge 1 and the ball 11 of the lower hinge 7 are
The extension lines of the axis Y of the ball 11 intersect at the center of the ball 11.

When opening a door connected to the vehicle body using the door hinge device, when the door is operated in the opening direction from the door closed state shown in FIG. 4, the upper flange portion 3 of the door bracket 3
1 rotates around the axis Y while being guided by the guide groove 24, until the axes X, Y, and Z are aligned in a straight line.

When the door is further operated in the opening direction, the link 41 and the upper flange portion 31 of the door bracket 3 assume a dogleg shape again due to the biasing force of the spring 5, and the axis Y moves to the Y' position, and the door bracket 3 is guided by a guide groove 24, and the vehicle mounting portion of the vehicle body bracket 3 rotates in the forward direction and outward direction of the vehicle body, compared to when the vehicle body bracket 3 is rotated by a fixed shaft.

Therefore, the entire door D rotates along a surface that approximates a conical surface with the center of the ball 11 of the lower hinge 7 as the apex, and the upper part of the door D moves outward in the forward direction of the vehicle body when the door is open. tilt.

As a result, the space above the doorway is not restricted by the door D, making it easier to get on and off the doorway.

In addition, although the above embodiment uses the hinge of the present invention for the upper hinge and the ball joint type hinge for the lower hinge, the hinge of the present invention may be used for both the upper and lower hinges, and in this case, the door When the door is opened, the upper part does not tilt, and the entire end edge of the door hinge moves away from the vehicle body.

Further, the guide groove 24 extends outward in the direction of the link 41 from the engagement position with the pin 35 when the door is closed, and is limited to an arc shape centered on the axis Y as in the above embodiment. For example, the axis X, Y,
The position where Z becomes a straight line may be a circular arc position centered on the axis Y, and the tip may further extend in a straight line or an arc shape in the above direction.

Furthermore, although the guide mechanism is constituted by the guide groove 24 and the pin 35, it is not particularly limited as long as the same effect can be achieved.

As described above, the automobile door hinge of the present invention connects the vehicle body bracket and the door bracket by a link, and is equipped with an urging means for urging the link and a guide mechanism for guiding the rotation of the door bracket. The structure is simple, the door smoothly and reliably rotates in the direction away from the vehicle body when the door is opened, the doorway space is not restricted by the edge of the door, and getting on and off is easy and safe.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an open state of an automobile rear door equipped with a hinge device using the door hinge of the present invention, Fig. 2 is a front view of the hinge device of Fig. 1, and Fig. 3 is a view of the hinge device of Fig. 2. The left side view and FIG. 4 are plan views of the door hinge of the present invention. B... Automobile body, D... Rear door, 1... Door hinge of the present invention, 2... Bracket for vehicle body of the above hinge, 3... Bracket for door of the above hinge, 41...
- Link, 5... Coil spring, 24... Guide groove, 7... Ball joint type door hinge.

Claims (1)

[Scope of utility model registration request] The vehicle body bracket is equipped with a vehicle body bracket to be attached to the vehicle body and a door bracket to be attached to the door, and the vehicle body bracket has a shaft erected in the vertical direction thereof, and the shaft and the door bracket are connected and pivoted by a ring. a guide mechanism that allows the door bracket to rotate relative to the vehicle body bracket, and that guides the door in a direction away from the vehicle body when the door bracket is rotated in the door opening direction; 1. A door hinge for an automobile, characterized in that the door hinge is provided with a biasing means for biasing the link in the door opening direction.