JPH07102848A - Door hinge mechanism for automobile - Google Patents

Abstract

PURPOSE:To enlarge a space nearby the foot parts of a door and a body so as to facilitate getting on and off, improve the degree of freedom for the opening condition of the door, and finely adjust it. CONSTITUTION:A body side parallel link consisting of first and second links 16, 17, and a door side parallel link 13 consisting of third and fourth links 20, 21, are respectively combined with brackets 6, 7 through two rotational shafts 7, 8. The intermediate part 16b of the first link 16 and the extreme end part 20b of the third link 20 are combined together through a fifth rotational shaft 22, the extreme end part 17b of the second link 17 and the extreme end part 21b of the fourth link 21 are combined together through a sixth rotational shaft 23, and the extreme end part 16c of the first link 16 and the intermediate part 21c of the fourth link 21 are combined together through a rotational shaft 24. At opening/closing a side door 2, the body side parallel link 9 is rotated centering around the first and second rotational shafts 7,8, and the door side parallel link 13 is rotated centering around the third and fourth rotational shafts 11, 12.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, an automobile side door 51 as shown in FIG. 4 is attached to a body 53 via a pair of upper and lower door hinges 52 so as to be openable and closable. As shown in FIG. 5, the door hinge 52 has a hinged heme 54 attached to the body 53 side, a hinged mail 55 attached to the side door 51 side, and the hinged heme 54 and the hinged mail 55 are rotatable. It is composed of one rotating shaft 56 to be coupled.

[0003]

However, in the above-mentioned conventional door hinge 52, since the side door 51 is adapted to rotate about the rotation shaft 56, when the side door 51 is opened. , The side door 51
Since there is little space in the vicinity of the feet of the body 53 and the boarding / unloading property is not so good, there is a problem that it is difficult for an occupant to get on and off. In particular, if the side door 51 cannot be opened at a large angle in a space such as a parking lot, there is a possibility that an occupant may get in and out of the vehicle.

The present invention has been made in view of the above situation, and an object thereof is to improve a boarding / alighting property by providing a large space near a foot of a door and a body so as to improve opening / closing of the door. An object of the present invention is to provide a door hinge mechanism for an automobile which has a large degree of freedom and can be finely adjusted.

[0005]

In order to solve the above-mentioned problems of the prior art, in the present invention, a body side bracket attached to the body side and a first and a second rotating shaft are attached to the body side bracket. A body-side parallel link to be coupled, a door-side bracket attached to the door side, and a door-side parallel link coupled to the door-side bracket by third and fourth rotating shafts, respectively.
The body-side parallel link is composed of first and second links, the door-side parallel link is composed of third and fourth links, and an intermediate portion of the first link and a tip portion of the third link. Is coupled by a fifth rotation shaft, the tip of the second link and the tip of the fourth link are coupled by a sixth rotation shaft, and the tip of the first link and the middle of the fourth link are coupled to each other. Parts are coupled by a seventh rotating shaft, and when the door is opened and closed, the body-side parallel link rotates about the first and second rotating shafts, and the door-side parallel link has the third and fourth rotating shafts. It is configured to rotate about the rotation axis of the.

[0006]

In the vehicle door hinge mechanism according to the present invention, the body side parallel link constituted by the first and second links and the door side parallel link constituted by the third and fourth links are respectively rotated by two rotations. A shaft is coupled to the bracket, a middle portion of the first link and a tip portion of the third link are coupled by a fifth rotating shaft, and a tip portion of the second link and a tip portion of the fourth link are coupled to a sixth portion. Of the first link and the middle portion of the fourth link are connected by a seventh rotation shaft so that the body-side parallel link is connected to the first and the first parallel links when the door is opened and closed. The door-side parallel link is configured to rotate about the second rotation axis and the door-side parallel links rotate about the third and fourth rotation axes. On open towards, it is possible to perform the opening and closing of the door smoothly. Moreover, by changing the length of each link and the position of each rotation axis by design, it is possible to increase the degree of freedom with respect to how the door is opened (the locus of the door when the door is opened), and it is also possible to make fine adjustments. become.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the illustrated embodiments.

1 to 3 show an embodiment of an automobile door hinge mechanism according to the present invention. In the figure, 1 is an automobile using the door hinge mechanism of the present embodiment, 2 is a side door disposed at the right and left side entrances 3 of the automobile 1, and the side door 2 is a side door via a door hinge 4. It is rotatably attached to the body 5 so as to open and close the entrance / exit 3.

As shown in FIGS. 2 and 3, the door hinge 4 is connected to a body side bracket 6 attached to the side body 5 side, and is joined to the body side bracket 6 by first and second rotating shafts 7 and 8. Body side parallel link 9, a door side bracket 10 attached to the side door 2 side, and the third and fourth door side brackets 10.
And a door-side parallel link 13 connected by rotating shafts 11 and 12, respectively.

For this reason, the body side bracket 6 is formed in a rectangular shape extending in the vertical direction, and the pair of support piece portions 14 are provided on the upper and lower portions on the coupling surface side of the body side parallel link 9.
a, 14b, 15a, and 15b are provided so as to be vertically spaced from each other. In addition, the body side parallel link 9
The first link 16 is arranged outside the side body 5 in the mounted state, and the second link 17 is arranged inside the side body 5 in the same state. The links 16 and 17 are provided at intervals in the vehicle width direction.

The first link 16 is formed in a linear shape when seen in a plan view, and the second link 17 is formed in a substantially V-shape in a plan view, which is bent in the middle, and is formed on the front side (supporting side) of the second link 17. The pieces 14 and 15) are inclined toward the side body 5. The rear sides of the first and second links 16 and 17 are arranged substantially parallel to each other in the front-rear direction with the side door 2 closed as shown in FIG. The part is configured to be arranged on the rear side of the side body 5 with respect to the rear end part of the first link 16.

On the other hand, between the upper support piece portions 14a and 14b and between the lower support piece portions 15a and 15b, there are first and second portions.
The upper and lower base end portions 16a and 17a of the links 16 and 17 are inserted and arranged, respectively. Further, the inserted first and second rotary shafts 7 and 8 are provided between the support piece portions 14a, 14b, 15a and 15b. Therefore, the body side parallel link 9 is rotatably supported by the rotary shafts 7 and 8. The first and second rotary shafts 7 and 8 have the first and second links 16 and
Corresponding to 17, supporting piece portions 14a, 14b, 15a, 15
The first rotary shaft 7 is located outside the side door 5 and the second rotary shaft 8 is located inside the side door 5 at a predetermined distance in the vehicle width direction of b. It is located at.

The door side bracket 10 is formed in a rectangular shape extending in the vertical direction, and the door side parallel link 1 is formed.
Support piece portions 18 and 19 are provided at upper and lower portions of the connection surface 3 on the side of the coupling surface at intervals. Moreover, these supporting pieces 18, 19 are formed in such a length that they are located near the front edge of the side door 2, and in the state where the door side bracket 10 is attached, the body side parallel link when the side door 2 is closed. It is configured to be arranged in parallel with 9.
Further, the door-side parallel link 13 includes a third link 20 arranged on the front side of the side body 5 in an attached state,
In the same state, it is composed of a fourth link 21 arranged on the rear side of the side body 5, and these third and fourth links 20,
21 are provided at intervals in the front-rear direction.

The third and fourth links 20 and 21 are formed in a linear frame body when seen in a plan view, and the third link 20 is formed shorter than the fourth link. Then, the third and fourth links 20, 21 are arranged substantially parallel to each other while inclining toward the side body 5 while the side door 2 is closed as shown in FIG.
The rear end of No. 1 is arranged closer to the side body 5 side than the rear end of the third link 20.

On the other hand, the upper support piece 18 and the lower support piece 1
The upper and lower base end portions 20a and 21a of the third and fourth links 20 and 21 are respectively inserted and arranged between the upper and lower portions. Moreover, between these support piece parts 18 and 19,
The 3rd and 4th rotating shafts 11 and 12 which were made to penetrate are installed. Therefore, the door-side parallel link 13 is rotatably supported by the rotary shafts 11 and 12. The third and fourth rotating shafts 11 and 12 have a third
And the support pieces 18, corresponding to the fourth links 20, 21.
19 are arranged at a predetermined interval in the front-rear direction,
The third rotating shaft 11 is located on the front side of the side door 5, and the fourth rotating shaft 12 is located on the rear side of the side door 5.

Further, the intermediate portion 16b of the first link 16 and the tip portion 20b of the third link 20 are rotatably coupled by a fifth rotating shaft 22, and the tip portion 1 of the second link 17 is connected.
7b and the tip portion 21b of the fourth link 21 are connected to the sixth rotary shaft 2
3 is rotatably coupled to the tip end portion 16c of the first link 16 and the intermediate portion 21 of the fourth link 21.
c is rotatably connected by a seventh rotating shaft 24. Therefore, the third and fourth links 20 and 21 are formed to have a shorter vertical length than the first and second links 16 and 17, and the first and second links 16 and
It is arranged between the upper and lower parts of the 17.

Therefore, the first and second links 16 and 17 of the body side parallel link 9 rotate about the first and second rotating shafts 7 and 8 when the side door 2 is opened and closed, and Third of the door side parallel link 13
The fourth links 20 and 21 are configured to rotate about the third and fourth rotation shafts 11 and 12.

Now, when the side door 2 of the automobile 1 using the door hinge mechanism of the present embodiment is to be opened, the door hinge 4 is changed from the state shown by the solid line in FIG. 2 to the first and second links of the body side parallel link 9. 16 and 17 rotate counterclockwise about the first and second rotation shafts 7 and 8, and the third and fourth links 20 and 21 of the door-side parallel link 13 rotate the third and fourth rotations. It rotates clockwise about the shafts 11 and 12. At this time, the third and fourth
Since the links 20 and 21 pull the first and second links 16 and 17, the first and second links 16 and 17,
The tip portions 16c and 17b of 17 are positioned outside the outer surface of the side body 5 as shown by the chain line in FIG. Along with this, the side door 2 opens diagonally forward while moving toward the outside of the body.

When the side door 2 of the automobile 1 is to be closed, the door hinge 4 is in the state shown by the chain line in FIG. 2, and the third and fourth links 2 of the door side parallel link 13 are closed.
0 and 21 press the first and second links 16 and 17 of the body side parallel link 9. Therefore, the first and second
The links 16 and 17 rotate clockwise about the first and second rotation shafts 7 and 8 and also the third and fourth rotation shafts.
The links 20 and 21 include the third and fourth rotating shafts 11 and 1.
It rotates counterclockwise about 2 and is arranged parallel to each other as shown by the solid line. Along with this, the side door 2
Will close while moving towards the inside of the body.

In the door hinge mechanism of this embodiment, the door hinge 4 combines two sets of the body side parallel link 9 and the door side parallel link 13, and the intermediate part 16b of the first link 16 and the third set.
The tip 20b of the link 20 is connected by the fifth rotating shaft 22, and the tip 17b of the second link 17 and the fourth link 2 are joined together.
The first end portion 21b of the first link 16 is connected by the sixth rotary shaft 23, and the front end portion 16c of the first link 16 and the intermediate portion 21c of the fourth link 21 are connected by the seventh rotary shaft 24. Therefore, the side door 2 can be opened diagonally forward at the outer position of the side body 5 as compared with the conventional case, and a sufficient space can be secured near the feet of the side door 2 and the side body 5, and a parking lot with a small space can be provided. Even passengers can get on and off easily.

The embodiment of the present invention has been described above.
The present invention is not limited to the embodiments described above, and various modifications and changes can be made based on the technical idea of the present invention.

For example, each link 1 in the above-mentioned embodiment
The lengths of 6, 17, 21, 22 and the positions of the rotary shafts 7, 8 etc. can be appropriately changed according to the type of vehicle to which they are applied.

[0023]

As described above, the vehicle door hinge mechanism according to the present invention includes a body side bracket attached to the body side and a body side parallel link coupled to the body side bracket by the first and second rotating shafts. A door-side bracket attached to the door side, and a door-side parallel link coupled to the door-side bracket by third and fourth rotating shafts, respectively, and the body-side parallel link includes first and second links. And the door-side parallel link is composed of third and fourth links, and the middle part of the first link and the tip part of the third link are connected by a fifth rotating shaft, The tip portion of the second link and the tip portion of the fourth link are coupled by the sixth rotation shaft, and the tip portion of the first link and the intermediate portion of the fourth link are rotated by the seventh rotation. When the door is opened and closed, the body-side parallel link rotates about the first and second rotation axes, and the door-side parallel link rotates about the third and fourth rotation axes. The door can be opened diagonally forward at a position outside the body as compared with the conventional structure, and a large space near the foot between the door and the body can be taken, improving the occupant's entry / exitability. it can. Moreover, if the door hinge mechanism of the present invention is used, the door can be opened and closed smoothly, and the feeling when opening and closing the door can be improved.

Further, in the door hinge mechanism of the present invention, it is possible to arbitrarily change the length of each link and the position of each rotary shaft depending on the design, so that the degree of freedom in opening the door is large and the door can be finely adjusted. It is possible and versatile.

[Brief description of drawings]

FIG. 1 is a side view showing an automobile using a door hinge mechanism according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a perspective view showing the door hinge mechanism.

FIG. 4 is a side view showing an automobile using a conventional door hinge mechanism.

5 is a cross-sectional view taken along the line BB in FIG.

[Explanation of symbols]

 1 Car 2 Side Door 4 Door Hinge 5 Side Body 6 Body Side Bracket 7 First Rotation Axis 8 Second Rotation Axis 9 Body Side Parallel Link 10 Door Side Bracket 11 Third Rotation Axis 12 Fourth Rotation Axis 13 Door Side Parallel link 14 Upper side support piece 15 Lower side support piece 16 First link 17 Second link 18 Upper side support piece 19 Lower side support piece 20 Third link 21 Fourth link 22 Fifth rotating shaft 23 Sixth Rotating shaft 24 Seventh rotating shaft

Claims (1)

[Claims] 1. A body side bracket attached to the body side, a body side parallel link coupled to the body side bracket by first and second rotating shafts, a door side bracket attached to the door side, and the door. Side brackets are respectively provided with door side parallel links coupled by third and fourth rotating shafts, the body side parallel links are constituted by first and second links, and the door side parallel links are constituted by the third side And a fourth link, the middle part of the first link and the tip part of the third link are coupled by a fifth rotating shaft, and the tip part of the second link and the tip part of the fourth link are connected. The sixth rotary shaft is coupled, and the distal end portion of the first link and the intermediate portion of the fourth link are coupled by a seventh rotary shaft so that when the door is opened and closed, A door hinge for an automobile, characterized in that a row link is configured to rotate about the first and second rotation axes, and the door-side parallel link is configured to rotate about the third and fourth rotation axes. mechanism.