JP2006283363A - Hinge device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hinge device capable of reducing the number of parts, simplifying the constitution of the whole device and improving productivity by applying a starting force to a link mechanism with simple constitution. <P>SOLUTION: A first turning time to allow relative turning of a first hinge base 10 on the vehicle body 1 side and one end of a hinge arm 30, and a second turning timing to allow relative turning of a second hinge base 20 on the door 2 side and the other end of the hinge arm 30, are set by the link mechanism 50. A first cam 61 and a second cam 62 provided at the link mechanism 50 are relatively put in action to operate the link mechanism 50 at the shift time from the first turning time to the second turning time and at the shift time from the second turning time to the first turning time. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a hinge device used for an automobile door, and more particularly to a hinge device whose opening angle can be set large by rotating the door about two axes.

  As this type of hinge device, for example, those disclosed in Patent Documents 1 and 2 are known.

  In these hinge devices, both ends of the hinge arm are pivotally supported about the first axis and the second axis with respect to the hinge bases attached to the vehicle body side and the door side, respectively. Then, by rotating the door about the first axis and the second axis, the opening angle of the door can be set as large as about 270 degrees.

  Such a hinge device is provided with a link mechanism for switching between a time when the door rotates about the first axis and a time when the door rotates about the second axis. This link mechanism is configured to operate in accordance with changes in the relative positions of the hinge base on the vehicle body side, the hinge base on the door side, and the hinge arm, and the door rotates around the first axis. At the time of switching between the timing and the rotation timing of the door around the second axis, an activation force that acts as an operation trigger is applied. For example, when the door is opened, when the door is rotated by a predetermined angle about the first axis and then rotated about the second axis, the former rotation timing is shifted to the latter rotation timing. Sometimes an activation force is applied to the link mechanism.

  In the hinge device described in Patent Document 1, the starting force of such a link mechanism is given by an adjustment screw provided on one of the hinge base on the vehicle body side and the door side coming into contact with the hinge arm. That is, due to the contact, the relative rotation of one hinge base and the hinge arm is prevented, and instead, the other hinge base and the hinge arm rotate relative to each other. The link mechanism is activated by the rotational force. That is, the starting force of the link mechanism is indirectly applied to the link mechanism by the adjustment screw provided on the hinge base restraining the movement of the hinge arm.

  Further, in the hinge device disclosed in Patent Document 2, a spring for urging the link mechanism in a specific operation direction is provided, and an activation force is applied to the link mechanism by the spring.

Utility model registration No. 2534715 US Pat. No. 6,842,945

  However, the provision of adjusting screws and springs to apply the starting force to the link mechanism reduces the design constraints associated with securing the deployment space and the reduction in productivity of the hinge device associated with the assembly work. There is a risk of inviting.

  An object of the present invention is to provide a hinge device that can apply a starting force to a link mechanism with a simple configuration, reduce the number of parts, simplify the overall configuration of the device, and improve productivity. There is.

  In the hinge device of the present invention, one end of the hinge arm is pivotally supported by the first hinge base attached to the vehicle body and is pivotally supported by the first shaft, and the other hinge arm is attached to the second hinge base attached to the door. When the end is pivotally supported by the second shaft and the link mechanism that operates according to the relative position of the first hinge base, the second hinge base, and the hinge arm is in one of the operating positions, When the first hinge base and the one end of the hinge arm are allowed to rotate relative to each other and the link mechanism is in the other operating position, the second hinge base and the hinge arm In the hinge device that is set as a second rotation timing in which relative rotation with the other end of the hinge arm is allowed, the link mechanism includes a first link provided on the first hinge base. A second cam provided on the second hinge base, a first control lever pivotally supported by the hinge arm and having a cam follower facing the cam surface of the first cam, and the hinge A second control lever pivotally supported by the arm and having a cam follower portion facing the cam surface of the second cam; and a link member connecting the first control lever and the second control lever. The cam surface of the first cam and the cam surface of the second cam act relative to the cam follower portion of the first control lever and the cam follower portion of the second control lever, and the first rotation timing The link mechanism is constrained to the one operation position, and the link mechanism is constrained to the other operation position during the second rotation time, and the first rotation time is determined. When moving from the second rotation time to the first rotation time, the link mechanism is moved from the one operation position to the other operation position. The link mechanism is operated from the other operation position to the one operation position.

  According to the present invention, the first rotation timing for allowing relative rotation between the first hinge base on the vehicle body side and one end of the hinge arm, and the second hinge base on the door side and the other end of the hinge arm are provided. When the second rotation timing that allows relative rotation is set by the link mechanism, the first rotation timing is obtained by causing the first cam and the second cam provided in the link mechanism to act in a related manner. The link mechanism is operated at the time of shifting from the second rotation time to the second rotation time and at the time of shifting from the second rotation time to the first rotation time. As a result, a starting force can be applied to the link mechanism with a simple configuration, and the number of parts can be reduced, the configuration of the entire apparatus can be simplified, and productivity can be improved.

  The link mechanism can be configured to shift from the second rotation timing to the first rotation timing during the opening or closing of the door, or conversely, from the first rotation timing to the second rotation. It can also be configured to shift to a time.

  Also, when one side of the cam surface of the first and second cams is caused to act on the other side and the other side inclined portion is actuated to release the rotation prevention of one of the first and second control levers. By rotating the other, it is possible to apply a starting force to the link mechanism with a very simple configuration.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present embodiment is an application example as a hinge device provided in a side door of an automobile.

  FIG. 1 is a plan view of the hinge device when the door is closed, that is, when the door opening angle is 0 degree. Similarly, FIGS. 2 and 3 are plan views of the hinge device when the door opening angle is 90 degrees and 170 degrees, respectively.

  The hinge device of this example includes a first hinge base 10 attached to the vehicle body 1 side, a second hinge base 20 attached to the door 2 side, and a hinge arm 30 that connects between them. The first hinge base 10 is formed in a substantially U-shaped plane, and one end of the first hinge base 10 is pivotally supported by the first hinge base 10 about the first shaft 31, and the other end is the second shaft 32. Is pivotally supported by the second hinge base 20 around the center. The rotation timing of the hinge arm 30 around the first shaft 31 and the second shaft 32 is set as will be described later, and when the opening angle of the door 2 is between 0 and 90 degrees, FIG. 1 and FIG. As described above, the other end of the hinge arm 30 rotates about the second shaft 32 in the directions of arrows B1 and B2. Further, when the opening angle of the door 2 is between 90 degrees and 170 degrees, as shown in FIGS. 2 and 3, one end of the hinge arm 30 rotates about the first shaft 31 in the directions of arrows A1 and A2. . Further, in a slight rotation range in which the opening angle of the door 2 is around 90 degrees, the hinge arm 30 is slightly rotated around each of the first shaft 31 and the second shaft 32.

  Between the first hinge base 10, the second hinge base 20, and the hinge arm 30, relative rotation between the first hinge base 10 and one end of the hinge arm 30 around the first shaft 31 is allowed. A link mechanism 50 for setting the timing and the timing allowing the relative rotation between the second hinge base 20 around the second shaft 32 and the other end of the hinge arm 30 is provided. ing.

  The link mechanism 50 includes a first control lever 51, a second control lever 52, and a link member 53 that connects them. The first control lever 51 is pivotally supported on one end side of the hinge arm 30 by a shaft 54 and is rotatable in the directions of arrows C1 and C2. Similarly, the second control lever 52 is pivotally supported on the other end side of the hinge arm 30 by a shaft 55 and is rotatable in the directions of arrows D1 and D2. One end of a link member 53 is relatively pivotally connected to the first control lever 51 by a shaft 56, and the other end of the link member 53 is relatively pivoted by a shaft 57 to the second control lever 52. It is connected freely.

  The first control lever 51 is formed with a cam follower portion 51 </ b> A that faces the cam surface of the first cam 61 provided on the first hinge base 10. Similarly, the second control lever 52 has the second hinge base 20. A cam follower portion 52 </ b> A is formed opposite to the second cam 62 provided on the cam. In the case of this example, the first cam 61 is fixed on the same axis as the first shaft 31, and the second cam 62 is fixed on the same axis as the second shaft 32. The cam surface of the first cam 61 is formed with a raised portion 61A, a protrusive portion 61B, and a slightly gentle inclined portion 61C located between them, and similarly, the cam surface of the second cam 62 Are formed with a raised portion 62A, a protuberant portion 62B, and a slightly gentle inclined portion 62C located therebetween.

  In the link mechanism 50, the relative positions of the first control lever 51, the second control lever 52, and the hinge arm 30 change according to the opening angle of the door 2 as shown in FIGS. 4, 5, and 6. Therefore, the operation is as follows.

(Operation when the door 2 is opened)
First, as shown in FIG. 4, the cam follower portion 52 </ b> A of the second control lever 52 extends along the raised portion 62 </ b> A of the second cam 62 until the opening angle is changed from 0 degree to nearly 90 degrees by the opening operation of the door 2. To move the hinge arm 30 around the second shaft 32 in the arrow B1 direction. At this time, as shown in FIG. 4, the cam follower 51 </ b> A of the first control lever 51 hits the inclined portion 61 </ b> C of the first cam 61, and the rotation of the hinge arm 30 about the first shaft 31 in the direction of arrow A <b> 1. Stop movement.

  When the opening angle of the door 2 reaches nearly 90, as shown in FIG. 5, the cam follower portion 52A of the second control lever 52 is disengaged from the starting portion 62A of the second cam 62, and the arrow D1 of the second control lever 52 Directional rotation is allowed. Therefore, the first control lever 51 can be rotated in the direction of the arrow C1, and the cam follower portion 51A is guided and moved along the slightly sloping portion 61C of the first cam 61. The first control lever 51 rotates in the direction of the arrow C1 in this manner for a short period from a little before the opening angle of the door 2 reaches 90 degrees to a little over 90 degrees, and the second control lever Since 52 rotates in the direction of arrow D1, the hinge arm 30 rotates in the directions of arrows A1 and B1 about the first shaft 31 and the second shaft 32, respectively.

  When the opening angle of the door 2 slightly exceeds 90 degrees, the cam follower portion 51A of the first control lever 51 is positioned at the starting portion 61A of the first cam 61 and the second control lever 52, as shown in FIG. The cam follower portion 52 </ b> A of the second cam 62 is located in the protuberance portion 62 </ b> A. Then, the cam follower portion 51A of the first control lever 51 moves along the raising portion 61A of the first cam 61 to allow the hinge arm 30 to rotate about the first shaft 31 in the direction of arrow A1. At this time, as shown in FIG. 6, the cam follower portion 52A of the second control lever 52 hits the protuberance portion 62B of the second cam 62, and the rotation of the hinge arm 30 about the second shaft 32 in the direction of the arrow B2 is performed. Stop movement.

  When the opening angle of the door 2 reaches 170 degrees, the stopper portion 10A located on the first hinge base 10 and the stopper portion 30A located on one end side of the hinge arm 30 come into contact with each other as shown in FIG. Thus, the rotation of the hinge arm 30 around the first shaft 31 in the direction of the arrow A1 is prevented. Further, after the opening angle of the door 2 slightly exceeds 90 degrees, as shown in FIG. 3, a stopper portion 20 </ b> A located on the second hinge base 20 and a stopper portion 30 </ b> B located on the other end side of the hinge arm 30. And the rotation of the hinge arm 30 about the second shaft 31 in the direction of arrow B1 is prevented.

  As described above, in the opening operation of the door 2, the hinge arm 30 rotates about the second shaft 32 in the direction of the arrow B1 until the opening angle reaches 0 to nearly 90 degrees, and the opening angle is After a slight period of time until 90 degrees is passed (hereinafter also referred to as “transition time”), the hinge arm 30 rotates about the first shaft 31 in the arrow A1 direction. That is, after the transition time after the time when the second hinge base 20 and the hinge arm 30 are allowed to rotate relative to each other (second rotation time), the relative relationship between the first hinge base 10 and the hinge arm 30 is relatively long. This is a time (first rotation time) in which a general rotation is allowed. As a result, the rotation center of the hinge arm 30 is moved from the second shaft 32 to the first shaft 31.

  As described above, the starting force of the link mechanism 50 at such a transition time is the slope of the first cam 61 when the cam follower portion 52A of the second control lever 52 is disengaged from the starting portion 62A of the second cam 62. 61C is given by the rotational force that rotates the first control lever 51 in the direction of the arrow C1.

(Operation when the door 2 is closed)
The cam follower portion 51A of the first control lever 51 moves along the raised portion 61A of the first cam 61 as shown in FIG. 6 until the opening angle is changed from 170 degrees to nearly 90 degrees by the closing operation of the door 2. Then, the rotation of the hinge arm 30 about the first shaft 31 in the arrow A2 direction is allowed. At this time, as shown in FIG. 6, the cam follower portion 52A of the second control lever 52 hits the inclined portion 62C of the second cam 62, and the rotation of the hinge arm 30 about the second shaft 32 in the direction of the arrow B2 is performed. Stop movement.

  When the opening angle of the door 2 becomes close to 90, the cam follower portion 51A of the first control lever 51 is disengaged from the starting portion 61A of the first cam 61 as shown in FIG. Rotation in the C2 direction is allowed. Therefore, the second control lever 52 can be rotated in the direction of the arrow D2, and the cam follower portion 52A is guided and moved along the slightly inclined portion 62C of the second cam 62. The second control lever 52 rotates in the direction of the arrow D2 in this manner during a slight period from a little before the opening angle of the door 2 reaches 90 degrees until it becomes slightly smaller than 90 degrees. Since the control lever 51 rotates in the direction of arrow C2, the hinge arm 30 rotates in the directions of arrows A1 and B1 about the first shaft 31 and the second shaft 32, respectively.

  When the opening angle of the door 2 is slightly smaller than 90 degrees, the cam follower portion 52A of the second control lever 52 is positioned at the starting portion 62A of the second cam 62 and the first control is performed as shown in FIG. The cam follower portion 51 </ b> A of the lever 51 is positioned at the prone portion 61 </ b> A of the second cam 61. Then, the cam follower portion 52A of the second control lever 52 moves along the raised portion 62A of the second cam 62, and the rotation of the hinge arm 30 about the second shaft 32 in the direction of arrow B2 is permitted. At this time, as shown in FIG. 4, the cam follower portion 51 </ b> A of the first control lever 51 abuts against the protuberance portion 61 </ b> B of the first cam 61, and the rotation of the hinge arm 30 about the first shaft 31 in the direction of arrow A <b> 2. Stop movement. Further, when the hinge arm 30 around the first shaft 31 is prevented from rotating in the direction of the arrow A2, the stopper portion (not shown) located on the first hinge base 10 is used as the first control lever 51 or the link member. 53 may be brought into contact.

  Thus, in the closing operation of the door 2, the hinge arm 30 rotates in the direction of the arrow A <b> 2 about the first shaft 31 until the opening angle of the door 2 reaches 170 degrees to nearly 90 degrees. After a period of time until the angle becomes slightly smaller than 90 degrees (hereinafter also referred to as “transition time”), the hinge arm 30 rotates about the second shaft 32 in the direction of arrow B2. In other words, after the transition time after the time when the relative rotation of the first hinge base 10 and the hinge arm 30 is allowed (first rotation time), the relative relationship between the second hinge base 20 and the hinge arm 30 is reached. This is a time when second rotation is allowed (second rotation time). As a result, the pivot center of the hinge arm 30 is moved from the first shaft 31 to the second shaft 32.

  As described above, the starting force of the link mechanism 50 at such a transition time is slightly gentle when the cam follower portion 51A of the first control lever 51 is disengaged from the starting portion 61A of the first cam 61. The inclined portion 62C is given by the turning force that rotates the second control lever 52 in the direction of the arrow D2.

  As described above, the first cam 61 and the second cam 62 function in a related manner at the time of transition from the first rotation timing to the second rotation timing, and from the second rotation timing to the first rotation timing. When shifting to (5), an activation force is applied to the link mechanism 50. The use of the first cam 61 and the second cam 62 to apply the starting force is extremely advantageous in terms of configuration. Apart from the first cam 61 and the second cam 62, a special adjusting screw or spring is used. The number of parts can be reduced, the configuration of the entire apparatus can be simplified, and the productivity can be improved as compared with the case where a starting force is applied to the link mechanism 50 using a method such as the above.

(Related mechanism)
The hinge device of this example can include a first check mechanism and a second check mechanism (not shown), similar to those described in Patent Documents 1 and 2. The first check mechanism applies a predetermined check force to the relative rotation between the first hinge base 10 and one end of the hinge arm 30 around the first shaft 31, and the first check mechanism A predetermined check force is applied to the relative rotation between the second hinge base 20 and the other end of the hinge arm 30 around the two axes 32.

(Other embodiments)
In the embodiment described above, the pivot center of the hinge arm 30 is moved from the second shaft 32 to the first shaft 31 while the door 2 is opened, while the hinge arm 30 is pivoted while the door 2 is closed. The center is configured to move from the first shaft 31 to the second shaft 32. However, on the contrary, the pivot center of the hinge arm 30 is moved from the first shaft 31 to the second shaft 32 during the opening of the door 2, while the rotation of the hinge arm 30 is performed during the closing of the door 2. The moving center can be configured to move from the second shaft 32 to the first shaft 31. In that case, what is necessary is just to make it the relationship which attaches the 1st hinge base 10 and the 2nd hinge base 20 with respect to the vehicle body 1 and the door 2 contrary to embodiment mentioned above.

  As described above, when the door 2 is opened and closed, the hinge arm 30 first rotates about the first shaft 31 and then rotates about the second shaft 32, or conversely, the door 2 The mode in which the hinge arm 30 first pivots about the second shaft 32 and then pivots about the first shaft 31 at the time of opening and closing is selected according to the usage mode of the door 2 and the like. be able to. For example, the hinge device of the former form can be used for doors that have many opportunities to open and close, and the hinge device of the latter form can be used for doors that frequently open and close. In particular, when the hinge device of the latter form is used, when the door is opened and closed small, the door rotates around the second shaft 32 on the side close to the door, so the first shaft 31 on the side far from the door is moved. The radius of rotation is smaller than when the door is pivoted about the center, and the door can be opened and closed by a small force.

  The hinge device of the present invention can be applied not only to a side door but also to a back door, etc. Further, the intermediate opening degree and the full opening degree of the door are not limited to the above-described embodiment and can be changed as appropriate. .

It is a partially notched top view of the hinge apparatus in embodiment of this invention when the opening angle of a door is 0 degree | times. FIG. 2 is a partially cutaway plan view of the hinge device of FIG. 1 when the door opening angle is 90 degrees. FIG. 2 is a partially cutaway plan view of the hinge device of FIG. 1 when the door opening angle is 170 degrees. It is a top view of the link mechanism part of the hinge apparatus of FIG. 1 in case the opening angle of a door is 0 degree | times. It is a top view of the link mechanism part of the hinge apparatus of FIG. 1 when the opening angle of a door is 90 degree | times. It is a top view of the link mechanism part of the hinge apparatus of FIG. 1 when the opening angle of a door is 170 degree | times.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car body 2 Door 10 1st hinge base 20 2nd hinge base 30 Hinge arm 31 1st axis | shaft 32 2nd axis | shaft 50 Link mechanism 51 1st control lever 52 2nd control lever 53 Link member 61 1st cam 62 2nd cam

Claims (4)

One end of the hinge arm is pivotally supported by the first hinge base attached to the vehicle body by the first shaft, and the other end of the hinge arm is rotated by the second shaft on the second hinge base attached to the door. When the first hinge base, the second hinge base, and the link mechanism that operates in accordance with the relative positions of the hinge arms are in one operating position, the first hinge base and the hinge are pivotally supported. It is set as a first rotation timing in which relative rotation with one end of the arm is allowed, and when the link mechanism is in the other operation position, the second hinge base and the other end of the hinge arm In the hinge device set as the second rotation time in which relative rotation is allowed,
The link mechanism is
A first cam provided on the first hinge base;
A second cam provided on the second hinge base;
A first control lever pivotally supported by the hinge arm and having a cam follower portion facing the cam surface of the first cam;
A second control lever pivotally supported by the hinge arm and having a cam follower portion facing the cam surface of the second cam;
A link member connecting the first control lever and the second control lever;
Including
The cam surface of the first cam and the cam surface of the second cam act relative to the cam follower portion of the first control lever and the cam follower portion of the second control lever. The link mechanism is constrained to the one operating position, the link mechanism is constrained to the other operating position during the second rotation time, and the transition from the first rotation time to the second rotation time is performed. Sometimes, the link mechanism is moved from the one operation position to the other operation position, and at the time of transition from the second rotation timing to the first rotation timing, the link mechanism is moved away from the other operation position. A hinge device characterized by being moved to one operating position.   2. The hinge device according to claim 1, wherein the link mechanism shifts from the second rotation timing to the first rotation timing during opening or closing of the door.   2. The hinge device according to claim 1, wherein the link mechanism shifts from the first rotation timing to the second rotation timing in the middle of opening or closing of the door. When the rotation prevention of one of the first control lever or the second control lever by the one raised portion of the cam surface of the first cam or the second cam is released, the first control lever or the second control The other cam follower portion of the lever is guided by the other inclined portion of the cam surface of the first cam or the second cam, and the other one of the first control lever or the second control lever rotates. The hinge device according to any one of claims 1 to 3, wherein

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