JP2534715Y2 - Hinge device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a hinge device for use in a rear gate door of a vehicle, and more particularly, to a so-called two-axis hinge which can have an opening angle as large as approximately 270 degrees while avoiding interference with a vehicle body. Related to the device.

[0002]

2. Description of the Related Art Conventionally, as such a two-axis hinge device, for example, a hinge device described in German Patent Publication No. 2811739 is known.

In this vehicle, an L-shaped vehicle-side hinge base fixed to a vehicle body and an I-shaped door-side hinge base fixed to a rear gate door are respectively connected to both ends of a flat block-shaped arm member. A first pivot and a second pivot supported by
It is pivotally supported by a pivot. A first cam surface is formed by cutting the outer periphery of the boss portion of the vehicle body side hinge into which the first pivot is inserted, and a second cam surface is formed by cutting the outer periphery of the boss portion of the door side hinge through which the second pivot is inserted. Have been. Further, in the flat block-shaped arm member, a guide hole having both ends facing the both boss portions is formed, and a wedge portion that engages with one of the cuts at a predetermined timing is provided at both ends. The provided stopper pin is slidably inserted.

Until the rear gate door is opened 180 degrees from the closed state, the wedge portion of the stopper pin is engaged with the second cam surface of the boss portion on the door side hinge base, and the arm member and the door are closed. The relative rotation of the side hinge base about the second pivot is not possible. And
In the 180-degree opened state, the stopper pin can be engaged with the cut of the boss portion on the vehicle body side hinge base, and as a result, the engagement between the second cam surface and the above-mentioned wedge portion is released, and the second pivot is centered. And the wedge portion of the stopper pin is engaged with the first cam surface, so that the relative rotation between the vehicle body side hinge base and the arm member about the first pivot axis becomes impossible.

[0005] Thus, the rear gate door rotates approximately 270 degrees with the arm member protruding in the vehicle width direction.

[0006]

However, in such a conventional hinge device, an arm member for connecting both hinge bases and a pivot portion at both ends thereof due to the structural specialty of the opening / closing control mechanism of the rear gate door. Must be located outside the vehicle body.

[0007] As a result, the appearance of the vehicle is degraded in appearance, and pedestrians may come into contact with the vehicle, which is not preferable.

Further, in the above-mentioned door opening / closing control mechanism, the production accuracy cannot be sufficiently obtained, and the occurrence of backlash is inevitable.

SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a hinge device capable of opening a door approximately 270 degrees without being exposed to the outside of a vehicle body and easily removing backlash. It is in.

[0010]

According to the present invention, a first hinge base attached to a vehicle body, a second hinge base attached to a door, and one end supported by the first hinge base. A curved hinge arm rotatably supported by the pivoted first pivot and the other end pivotally supported by a second pivot supported by the second hinge base; and a fixed hinge arm fixed to the first hinge base. A first cam having a cam surface having a predetermined contour provided thereon, a second cam having a cam surface having a predetermined contour fixed to the second hinge base, and a base end rotatably supported by the hinge arm; A first lever having a cam follower that engages with the first cam, a second lever rotatably supported by the hinge arm, and having a cam follower at the base end that engages with the second cam; End and front of the first lever A link member rotatably connecting the end of the second lever, and a link member interposed between the first hinge base and the hinge arm, which presses the hinge arm in the anti-rotation direction when the hinge arm rotates by a predetermined angle. A first pressing means, and at least one of a second pressing means interposed between the second hinge base and the hinge arm and pressing the hinge arm in the anti-rotational direction when the door is fully closed. It is characterized by having.

[0011]

According to the present invention, when the door is in the fully closed state, the hinge arm is pressed in the anti-rotation direction by, for example, the second pressing means, and the cam follower portion of the second lever supported by the hinge arm. Is pressed against a cam surface having a predetermined contour of the second cam and rotated. The rotation of the second lever is transmitted to the first lever via the link member, and the cam follower is pressed against a cam surface having a predetermined contour of the first cam to remove the play.

Further, when the door is opened from the fully closed state to, for example, approximately 90 degrees, the cam surface having a predetermined contour of the second cam that rotates integrally with the second hinge base and the hinge arm support the hinge surface. The cam follower portion of the second lever is engaged with the hinge arm so as not to allow relative rotation between the hinge arm and the second hinge base, and the hinge arm is centered on the first hinge axis with respect to the first hinge base. And rotate approximately 90 degrees. Then, when the door is opened by 90 degrees, the first lever supported by the hinge arm pivots by the action of the cam follower that follows the cam surface having a predetermined contour of the first cam fixed to the first hinge base. I do. Then, the rotation is transmitted to the second lever via the link member, and the state in which the relative rotation between the hinge arm and the second hinge base is not permitted is released. As a result, the door is further rotated substantially 180 degrees around the second pivot while keeping the hinge arm rotated substantially 90 degrees. When the hinge arm is rotated by approximately 90 degrees, the hinge arm is pressed in the anti-rotation direction by, for example, first pressing means, and the cam follower portion of the first lever supported by the hinge arm is moved to the predetermined position of the first cam. Press against the contoured cam surface and rotate. The rotation of the first lever is transmitted to the second lever via the link member,
The play is removed by pressing the cam follower portion against a cam surface having a predetermined contour of the second cam.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 100 denotes a first hinge base which is attached to the vehicle body side.
2 and first and second side plate portions 103 connecting the two.
And 104. End portions of the upper plate portion 101 and the lower plate portion 102 facing the first side plate portion 103 are bent to form mounting flanges 105 and 106, respectively.

Reference numeral 110 denotes a second side mounted on the door side.
The hinge base includes an upper plate portion 111, a lower plate portion 112, and a side plate portion 113 that connects the two, similarly to the first hinge base 100. The ends of the upper plate 111 and the lower plate 112 are bent to form mounting flanges 114, 115 and 116, 117, respectively. An extension 118 is provided on one side of the side plate 113.
And a second adjustment screw 183 described later is screwed.

Further, reference numeral 120 denotes the first hinge base 100.
First and second boss portions 121 and 122 each having a belt-shaped hinge arm rotatably connected to the first and second hinge bases 110 and having bearing holes formed at both ends.
It has. Both ends of the upper and lower plate portions 101, 10 of the first hinge base 100 are inserted into the bearing holes of the first boss portion 121.
The first pivot 131 supported by the second hinge base 110 is provided in the bearing hole of the second boss part 122 at both ends thereof.
The second pivots 132 supported by the first and second gears 112 and 112 are respectively inserted.

The hinge arm 120 has a substantially U-shaped curved shape when viewed from the axial direction of the first and second pivots 131 and 132, and has a first side wall 123 and a second boss connected to the first boss 121. A second side wall portion 124 connected to 122;
And a central connecting wall 125 connecting the side walls 123 and 124 (see FIG. 2). Further, outside the first side wall portion 123 and the second side wall portion 124, a hole is formed integrally with which a support shaft for pivotally supporting the first and second levers 143 and 144 described later is fitted. A third boss 126 and a fourth boss 127 are provided, respectively.

Here, the door opening / closing control mechanism 140 will be described.

The door opening / closing control mechanism 140 is provided between the upper plates 101 and 111 of the first and second hinge bases 100 and 110 and the hinge arm 120, respectively. A second cam 142, a first lever member 143, a second lever member 144, and a link member 145 are provided.

The first cam 141 has a substantially fan shape when viewed from the axial direction of the first pivot 131, and has a first pivot 1 at its center.
There is formed a through hole through which 31 is inserted (see FIG. 6). The boss 141A is formed around the through hole on the upper surface.
And a flat notch 141B for positioning is formed in a part of the outer periphery of the boss portion 141A. Further, the cam surface of the first cam 141 includes an arc portion 141C having the same diameter around the axis of the first pivot 131 and a slope portion 141D parallel to the axis. The positional relationship between the arc portion 141C and the slope portion 141D will be described later.

The first cam 141 is provided with a flat portion fitting hole 10 formed in the upper plate portion 101 of the first hinge base 100.
The boss portion 141A is fitted and positioned in the flat notch 141B in the aligned state.

The second cam 142 also has a substantially fan-like shape similarly to the first cam 141, and has a through hole formed at the center thereof through which the second pivot 132 is inserted. Further, since other configurations are the same as those of the first cam 141, if only the names of the respective portions are simply described, the boss portion 142A, the notch 142B, and the arc portion 1
42C and a slope portion 142D, and a fitting hole 111A formed in the upper plate portion 111 of the second elbow base 110 described above.
The boss 142A is fitted and positioned (mainly, see FIG. 4).

Referring mainly to FIG. 2, first lever 143
Is the first side wall portion 12 of the hinge arm 120 described above.
It is rotatably supported by a first support shaft 146 which is fitted and supported in a hole formed in a third boss 126 outside the third boss 126. Further, the first lever 143 is connected to the first cam 141 described above.
And a cam follower portion 143A that comes into contact with the cam surface.

The second lever 144 is connected to the fourth boss 12 outside the second side wall 123 of the hinge arm 120.
7 is rotatably supported by a second support shaft 147 fitted and supported in a hole formed in the hole 7. Further, the second lever 144
Is provided with a cam follower portion 144A that comes into contact with the cam surface of the second cam 142 as in the case of the first lever 143.

The end of the first lever 143 and the end of the second lever 144 are rotatably connected to the link member 145 by the first connection shaft 148 and the second connection shaft 149, respectively. .

Next, the check force applying mechanism will be described mainly with reference to FIGS.

The check force applying mechanism is composed of first and second check force applying mechanisms 160 and 170.
The check force applying mechanism 160 is the hinge arm 120 described above.
On the lower side, on the lower plate 102 of the first hinge base 100, the second check force applying mechanism 170 is also disposed above the lower plate 112 of the second hinge base 110.

That is, a substantially L-shaped cam plate 161 is rotatably supported on one end of the lower plate portion 102 of the first hinge base 100 by a pivot shaft 162 at one end thereof. 163 is a roller,
The hinge arm 120 is rotatably supported on a third support shaft 164 fitted and supported in a hole formed in the third boss 126. Also, the other end of the cam plate 161 and the lower plate portion 10
A spring 165 is stretched between the locking piece 102 </ b> A and the locking piece 102 </ b> A, which urges the cam surface of the cam plate 161 against the roller 163. First and second concave portions 161A and 161B are formed on the cam surface of the cam plate 161 in correspondence with the position of a door described later.

Next, on the lower side of the hinge arm 120, a substantially L-shaped lever 171 is fitted and supported in a hole formed in the fourth boss 127 with the bent portion as a center of rotation. 172 is rotatably supported. A roller 173 is rotatably supported at one end of the L-shaped lever 171.

On the other hand, reference numeral 174 denotes a check cam, which has a through hole at the center thereof through which the second pivot 132 is inserted.
By the same fixing method as the second cam 142, the boss portion is
The hinge base 110 is fitted and positioned in a fitting hole formed in the lower plate 112 of the hinge base 110.

A spring 176 extends between a notch 171A formed at the other end of the L-shaped lever 171 and a locking pin 175 implanted on the lower surface of the center connecting wall 125 of the hinge arm 120. The roller 173 is urged to press the roller 173 against the cam surface of the check cam 174. The cam surface of the check cam 174 includes an arc-shaped portion 174A having the same diameter about the axis of the second pivot 132 and first and second flat portions 174B and 174C on both sides thereof (see FIG. 5). ).

Referring to FIGS. 3 and 4, a first adjusting screw 181 having both a stopper function and a play removing function is threaded through the first side wall portion 123 of the hinge arm 120 through the wall. The front end thereof can contact the second side plate 104 at a predetermined opening angle of the door. 1
82 is the lock nut. On the other hand, reference numeral 183 denotes a second adjusting screw which is screwed to the extension 118 of the second hinge base 110 and also has a stopper function and a play removing function. 124 can be contacted. 184 is the lock nut.

Thus, the hinge mechanism having the above structure is
As shown in FIGS. 4 and 5, the first hinge base 100
Is mounted inside the rear gate pillar 200 of the vehicle, and the second hinge base 110 is mounted inside the rear gate door 210 using mounting holes formed in the first side plate 103, the mounting flanges 105 and 106, and the mounting flanges 114 to 117, respectively. Attached with bolts and the like.

The illustrated state is a state on the left side of the vehicle, and a similar mechanism is provided on the right side. However, the mechanism is left and right.

When the rear gate door 210 shown in FIGS. 1 to 5 is fully closed, the first pivot 131 and the second
The plane including the axis with the pivot 132 is positioned substantially on the outermost side of the vehicle, and the U-shaped hinge arm 120 is located on the center side of the vehicle with respect to the above-mentioned plane when viewed from these axial directions. You. At this time, the arc portion 1 of the first cam 141
41C is located on the center side of the vehicle,
The cam follower 143A of the first lever 143 abuts the arc portion 141C of the first cam 141, and the inclined portion 14C of the second cam 142
The cam follower 144A of the second lever 144 is in contact with 2D.

In this state, when the rear gate door 210 is opened, the opening operation up to 90 degrees is as follows.

That is, when a force for opening the door is applied to the rear gate door 210, the second hinge base 210 fixed to the rear gate door 210 tries to rotate around the second pivot 132, as described above. 4), that the slope 142D of the second cam 142 fixed to the second hinge base 110 is in contact with the cam follower 144A of the second lever 144, and the second lever 144 is rotated by the slope 142D. However, the second lever 144 is in contact with the arc portion 141C of the first cam 141 and is connected to the first lever 143 in a non-rotatable state by a link member 145, so that the second lever 144 is also in a non-rotatable state. In some cases, rotation about the second pivot 132 is not possible. As a result, the rear gate door 210 rotates around the first pivot 131 on which no binding force is applied.

That is, while the relative relationship between the second hinge base 110 and the hinge arm 120 remains unchanged, the hinge arm 120 rotates around the first pivot 131 as shown in FIGS. As the hinge arm 120 rotates, the first lever 143 supported by the hinge arm 120 also rotates, but the cam follower 143A of the first lever 143 moves only on the circular arc portion 141A of the first cam 141 having the same diameter. It is. Then, the rear gate door 210
Reaches the 90-degree door opening position, the tip of the first adjustment screw 181 contacts the second side plate 104 of the first hinge base 100, and further rotation of the hinge arm 120 is prevented (see FIG. 9). At the same time, the contact of the first lever 143 with the circular arc portion 141A of the cam follower portion 143A is released.

The operation of the check force applying mechanism during the opening operation up to 90 degrees will be described with reference to FIG. As described above, since there is no relative rotation between the rear gate door 210 and the hinge arm 120, the second check force applying mechanism 170 does not function. Thus, as described above, the first
When the hinge arm 120 rotates about the pivot 131,
A roller 163 supported on a third support shaft 164 press-fitted and supported in a hole formed in the third boss 126 of the hinge arm 120 forms a first recess 161 of the cam plate 161.
The engagement with A is released and the cam plate 161 rolls on the arcuate cam surface. When the door reaches the 90-degree opening position, the roller 163 is engaged with the second recess 161B,
The check force is applied by the urging force of the spring 164 of the cam plate 161.

Next, the operation of the rear gate door 210 from the 90-degree opened state to the 270-degree opened state will be described.

When a further door opening force is applied to the rear gate door 210 from the 90-degree opened state shown in FIG. 9, the second cam 142 fixed to the second hinge base 110 rotates around the second pivot 132. Trying to rotate, the slope 142D
The second lever 144 in contact with the second support shaft 147.
Try to rotate around. At this time, the first
The cam follower portion 143A of the lever 143 is a circular arc portion 141.
The contact with A is released, and the second lever 144 connected via the link member 145 can rotate.

Thus, the rear gate door 210 rotates about the second pivot 132, and the door is opened at about 270 degrees as shown in FIG. During the rotation from 90 degrees to 270 degrees for approximately 180 degrees, the cam follower portion 144A of the second lever 144 slides on the arc portion 142C of the second cam 142.

As is clear from the above description, the second cam 142 requires an arc portion 142C of approximately a semicircle, while the arc portion 141C of the first cam 141 only needs to have an approximately 1/4 circumference. . However, in consideration of cost reduction by sharing parts, the first cam 141 and the second cam 142 may be the same.

During the opening operation from 90 degrees to 270 degrees, the second check force applying mechanism 170 functions.

That is, from the state shown by the virtual line in FIG.
When the rear gate door 5 is further rotated, the check cam 174 fixed to the second hinge base 110 is moved to the second position, while the hinge arm 120 and the fourth support shaft 172 supporting the L-shaped lever 171 are not moved. Rotate about pivot 132.

Then, in the state shown in FIG. 5, the check cam 174 is moved from the position where the check force is applied by the contact of the first flat portion 174B of the check cam 174 and the roller 173 urged by the spring 176. Arc part 174A
The roller 173 comes into contact with the second flat portion 174C over the intermediate position where the roller 173 comes into contact with the roller 173. In this state, the roller 173 is moved by the L-shaped lever 171 biased by the spring 176 to the flat portion 174C.
And a check force is applied.

Next, the play of the backlash in the hinge mechanism of this embodiment will be described.

In the fully closed state of the rear gate door 210 shown in FIG. 4, when the second adjusting screw 183 is tightened and the second side wall 124 of the hinge arm 120 is pressed, the hinge arm 120 is supported by the second support shaft 147. The second lever 144 is also pushed, and its cam follower portion 144A
Are strongly in contact with the slope 142D of the second cam 142. Then, a rotational force is applied to the second lever 144 around the second support shaft 147 (clockwise in FIG. 4), which is transmitted to the first lever 143 via the link member 145, and the cam follower portion 143A of the first lever 143 is moved. The first cam 141 is pressed against the arc portion 141C.

Thus, the play between the hinge arm 120 and the first and second pivots 131 and 132 supported by the first and second hinge bases 100 and 110 is eliminated, and at the same time, the first lever 143 is released. The play between the second lever 144 and the link member 145 connecting the two is eliminated.

On the other hand, the rear gate door 210 shown in FIG.
In the fully opened state of 270 degrees, the first adjustment screw 181 is tightened, and the tip end thereof comes into contact with the second side plate 104.
Then, the first side wall 123 on which the first adjustment screw 181 is screwed, and eventually the first lever 1 supported by the hinge arm 120 and the first support shaft 146.
43 is pressed by the reaction force, and the cam follower portion 143A strongly contacts the slope portion 141D of the first cam 141. As a result, as in the case described above, the first lever 1
Reference numeral 43 denotes a cam follower portion 144 to which a rotational force is applied and transmitted to the second lever 144 via the link member 145.
A is pressed against the arc portion 142C of the second cam 142, and the play is removed.

It should be noted that the above-described adjustment for removing the backlash can be performed before the hinge mechanism according to the present invention is mounted on the vehicle.

Since the first and second adjusting screws 181 and 183 also function as stoppers as described above, an elastic body is provided at the distal end thereof in order to reduce the hitting sound at the time of collision. It may be provided.

Further, in the present embodiment, the third and fourth holes having through holes integrally with the side wall of the hinge arm 120 are provided.
Bosses 126 and 127 are formed, and the door opening / closing control mechanism 1 is provided above the hinge arm 120 using the through holes.
40 supports the first and second support shafts 146 and 147, and the third side of the check force applying mechanisms 160 and 170
Further, since the fourth support shafts 164 and 172 are supported, the structure can be simplified and the number of processing steps can be reduced. Further, as another embodiment of the present invention, as shown in FIG. 14, in place of the adjusting screws 181 and 183, the hinge arm 120 in the fully closed state described above is used.
And a second elastic block 186 interposed in a predetermined flexure state between the second elastic base 186 and the extension portion 118 of the second hinge base 110, and between the hinge arm 120 and the second side plate 104 of the first hinge base 100 in the fully opened state. A first elastic block 185 interposed in a predetermined bending state may be provided therebetween.
In this case, the structure is simple and no adjustment is required.

[0054]

As is apparent from the above description, according to the present invention, the first pivot supported on the hinge base on the vehicle body side and the second pivot supported on the hinge base on the door side are rotatable. The hinged arm to be supported has a curved shape, and the door opening / closing control mechanism is constituted by a cam fixed to both hinge bases, a lever having a cam follower, and a link member connecting the two, and a vehicle body side hinge base and a hinge. First pressing means interposed between the hinge arm and the hinge arm in a counter-rotating direction when the hinge arm is rotated by a predetermined angle, and interposed between the door-side hinge base and the hinge arm;
Since the hinge arm is provided with at least one of the second pressing means for pressing the hinge arm in the anti-rotation direction when the door is fully closed, the door can be opened 270 degrees without being exposed outside the vehicle body, A hinge device that can easily remove backlash can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of a hinge device according to the present invention, showing a door fully closed.

FIG. 2 is a perspective view showing a main part of the opening / closing control mechanism and a check force applying mechanism.

FIG. 3 is a side view of FIG.

FIG. 4 is a plan view mainly showing a door opening / closing control mechanism in a state where the hinge device according to the present invention is incorporated in a vehicle (when the door is fully closed).
It is.

FIG. 5 is a plan view (when the door is fully closed and the door is opened 90 degrees) mainly showing the check force applying mechanism in a state where the hinge device according to the present invention is incorporated in a vehicle.

FIG. 6 is an exploded perspective view for explaining attachment of a cam.

FIG. 7 is a perspective view corresponding to FIG. 1 and shows a state in which the door is opened by 90 degrees.

FIG. 8 is a perspective view of a main part corresponding to FIG. 2;

9 is a plan view corresponding to FIG. 4 and shows a state where the door is opened by 90 degrees.

FIG. 10 is a perspective view corresponding to FIGS. 1 and 7, showing a state where the door is opened at 270 degrees.

FIG. 11 is a perspective view of relevant parts corresponding to FIGS. 2 and 8;

FIG. 12 is a plan view corresponding to FIGS. 4 and 9, showing a state where the door is opened at 270 degrees.

FIG. 13 is a plan view corresponding to FIG. 5, showing a state where the door is opened at 270 degrees.

FIG. 14 is a plan view showing a state in which a hinge device according to another embodiment of the present invention is incorporated in a vehicle (door fully closed, 90 degrees, 2 degrees).
(When the door is opened at 70 degrees).

[Explanation of symbols]

 Reference Signs List 100 first hinge base 101A fitting hole 102A locking piece 103 first side plate 104 second side plate 110 second hinge base 113 side plate 118 extension 120 hinge arm 121 first boss 122 second boss 123 first Side wall part 124 Second side wall part 125 Central connecting wall part 126 Third boss 127 Fourth boss 131 First pivot 132 Second pivot 140 Door opening / closing control mechanism 141 First cam 142 Second cam 143 First lever 143A Cam follower 144 2 lever 144A Cam follower part 145 Link member 146 First support shaft 147 Second support shaft 148 First connection shaft 149 Second connection shaft 160 First check force applying mechanism 161 Cam plate 162 pivot support shaft 163 Roller 164 Third support shaft 165 Spring 170 second check force applying machine Structure 171 L-shaped lever 171A Notch 172 Fourth support shaft 173 Roller 174 Check cam 175 Lock pin 176 Spring 181 First adjustment screw 182 Lock nut 183 Second adjustment screw 184 Lock nut 185 First elastic block 186 Second elastic block

Claims (3)

(57) [Scope of request for utility model registration] A first hinge base attached to a vehicle body; a second hinge base attached to a door; one end rotatably supported by a first pivot supported by the first hinge base; A curved hinge arm rotatably supported by a second pivot supported by the second hinge base; a first cam having a cam surface with a predetermined contour fixed to the first hinge base; A second cam having a cam surface with a predetermined contour fixed to a second hinge base; and a first lever rotatably supported by the hinge arm and having a cam follower portion at a base end for engaging with the first cam. A second lever rotatably supported by the hinge arm and having a cam follower at its proximal end for engaging with the second cam; and a distal end of the first lever and a distal end of the second lever. Link to connect freely A first pressing means interposed between the first hinge base and the hinge arm and pressing the hinge arm in a counter-rotating direction when the hinge arm is rotated by a predetermined angle; and the second hinge base and the hinge At least one of a second pressing means interposed between the second arm and the second arm and pressing the hinge arm in the anti-rotational direction when the door is fully closed. 2. The hinge device according to claim 1, wherein the pressing unit is an adjusting screw. 3. The hinge device according to claim 1, wherein the pressing means is an elastic body.