JPH079982Y2 - Automotive door hinge mechanism - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge mechanism for an automobile door.

[0002]

2. Description of the Related Art In an automobile door opening / closing braking mechanism, a bracket 2 attached to a vehicle body 1 side, a bracket 5 attached to a door 4 side, are rotatably connected by a shaft 6, and the door 4 rotates. A check arm (b) having an inverted “e” shape is rotatably supported by a shaft (c) inwardly of the side part (a) on the center side and a tip part (d) of the check arm (b).
And a side portion (a) of the door 4 is provided with a spring (e) having a reaction force that tends to extend.

Due to the reaction force of the spring (e), the peripheral edge (f) of the check arm (b) is constantly brought into pressure contact with the roller (g) provided on the bracket 4, and the elasticity of the spring (e) is used to move the door. There was a structure that brakes the opening and closing (Fig. 4).

[0004]

However, since the peripheral edge (f) of the check arm (b) and the roller (t) are constantly strongly pressed against each other by the reaction force of the spring (d), they wear each other, There have been problems such as breakage of the roller, deterioration of the reaction force of the spring, and abnormal noise of each sliding portion.

The present invention reduces wear and cracks of members forming a hinge mechanism of a vehicle body and a door, generation of abnormal noise of the hinge mechanism, etc., and further secures a half-opened state of the door and a door open / closed state / opened / closed state. This is a device designed to increase the safety of passengers when passengers are in.

[0006]

According to the present invention, a bracket 2 fixed to a vehicle body 1 and a bracket 5 fixed to a door 4 are provided.
Is rotatably supported by a shaft 6, and when one of the brackets 5 is rotated, the bracket 5 is provided on the side of drawing a circular arc locus W close to the upright wall 2a of the other bracket 2. An elastic roller 7 is supported by a shaft 8 so as to be rotatable in the horizontal direction, and a bulge portion 9a is pressed against the upright wall 2a to press the elastic roller 7 when the elastic roller 7 is displaced due to the rotation of one bracket 5. -Providing the braking part 9 which formed 9b.

Since the present invention is constructed as described above, the shaft 6
When the door 4 is rotated in the opening direction around, the bracket 5 also rotates, the elastic roller 7 attached to the bracket 5 also rotates, and approaches the braking portion 9. Further, when the door 4 rotates in the opening direction, the elastic roller 7 comes into pressure contact with one of the bulging portions 9a,
Since it is deformable, the portion in contact with the bulging portion 9a is slightly dented, is displaced by the elastic roller 7 as the door 4 rotates, returns to its original shape, is joined to the concave portion 9e, and is bulged on the other side 9b. Due to the resistance caused by, the rotation of the door 4 is temporarily stopped and the half-open state is maintained.

When a further force is applied to the door 4 to rotate it in the opening direction, the elastic roller 7 is displaced together with the bracket 5 and pressed against the bulging portion 9b on the other side to be deformed, but when the bulging portion 9b is exceeded. Since the original shape is restored again, even if the door 4 naturally tries to rotate in the closing direction, the elastic roller 7 hits the bulging portion 9b and is braked, and the door is kept in the fully opened state.

[0009]

1 is a perspective view of a first embodiment of the present invention, in which a bracket 2 having a U-shaped vertical section fixed to a vehicle body 1 has a U-shaped vertical section fixed to a front portion 3 of a bracket 2. The one side 5a of the bracket 5 is connected by a shaft 6 so as to be rotatable in the lateral direction.

On the other side 5b of the bracket 5, that is, when the bracket 5 rotates around the shaft 6 together with the door 4, there is elasticity on the side which draws a circular arc locus W close to the upright wall 2a of the bracket 2. A roller 7 is supported by a shaft 8 so as to be rotatable in a horizontal direction.

The elastic roller 7 is a comb having a certain elasticity or resilience such as a soft synthetic resin so that it can be deformed when pressure is applied to the bulging portions 9a and 9b of the braking portion 9 which will be described later. Mold by.

On the inner surface 2b of the upright wall 2a of the bracket 2, there is provided a braking portion 9 which comes into contact with the outer peripheral surface 7b of the elastic roller 7 which is displaced as the bracket 5 rotates. On one end edge 9c and the other end edge 9d of the surface of the braking portion 9, bulging portions 9a and 9b are formed to press and deform the elastic roller 7 when the elastic roller 7 contacts. , The outer peripheral surface 7 of the elastic roller 7 between the one edge 9c and the other edge 9d.
An arc-shaped recess 9e that fits b is formed.

FIG. 1 is a perspective view of another embodiment of the elastic roller 7, in which a cavity 7a is formed in the elastic roller 7 at a symmetrical position with respect to the shaft 6 and in a positional relationship parallel to the shaft 6.
This cavity 8a may be formed by penetrating the elastic roller 7 along the shaft 6 or may be formed intermittently along the shaft 6, so that when the elastic roller 7 contacts the bulging portions 9a, 9b. It is selected and formed according to the necessity of the braking pressure of.

[00014]

As described above, according to the present invention, the bracket fixed to the vehicle body is provided with the braking portions formed with the bulging portions on the left and right edges and the arcuate concave portion, and the bracket fixed to the door mold is provided. An elastic roller is provided, and when the elastic roller is rotationally displaced with opening and closing of the door, if the elastic roller comes into contact with the bulging portion of the braking portion, the elastic roller is pressed and deformed, which hinders the door opening and closing operation. There is no such thing.

When the elastic roller fits in the recess again, rolling is restricted by the left and right bulges, so that the half-open state of the door can be reliably held, and the half-open door will close naturally. It is safe without being pinched by your body or wrist. Also,
Even when opening the door by opening the door lock automatically or manually, the elastic roller comes into contact with the bulging part on one side to brake the opening operation, so no mechanical force or human force in the opening direction is applied. As long as there is no danger of hitting or knocking over the person with the force of the door to open it, the person near the outside of the door will open. On the contrary, even when the door is fully opened, the elastic roller is braked by the bulging part on the other side to close the door, so unless the door receives the mechanical force or human force in the closing direction, There is no chance that the door will hit the person standing between them or the person trying to get into the car body, pinching their hands or body, or being pushed into the seat. In particular, the above points are effective when the vehicle is parked on a slope with a certain degree of slope.

Further, since the elastic roller can be deformed when it comes into contact with the bulging portion, it is less likely to cause abrasion or cracking and abnormal noise of the sliding portion as compared with the conventional case.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is an enlarged perspective view of an elastic roller.

FIG. 3 is a cross-sectional plan view showing the operation of the present invention.

FIG. 4 is a cross-sectional plan view showing a conventional structure and operating force.

[Explanation of symbols]

1 Car Body 9 Braking Part 2 Bracket 9a / 9b Swelling Part 2a Upright Wall 9c / 9d End Edge 2b Inner Surface 9e Recessed Part 3 Front Part 4 Door 5 Bracket Side 5a One Side Rotic Arm 5b Other Side Haxel 6 Axis Near Part 7 Elastic roller W Spring 7a Cavity Edge 7b Outer peripheral surface Tracker 8 Axis W Trajectory

Claims (2)

[Scope of utility model registration request] 1. A bracket 2 fixed to a door 4 is rotatably supported by a shaft 6 on a bracket 2 fixed to a vehicle body 1. When one bracket 5 is rotated, the bracket 5 is rotated. The elastic roller 7 is supported by a shaft 8 so as to be horizontally rotatable around the side of the other bracket 2 which draws an arcuate locus W close to the upright wall 2a, and the bracket 8 is rotated around the upright wall 2a. A hinge mechanism for an automobile door, characterized in that a braking portion 9 having bulged portions 9a and 9b for pressing the elastic roller 7 when the elastic roller 7 is displaced due to movement is provided. 2. The hinge mechanism for an automobile door according to claim 1, wherein the elastic roller 7 is a utility model registration claim.
In addition, a plurality of cavities 7a are provided at symmetrical positions with respect to the shaft 8 of the elastic roller 7.