JP4347250B2 - Hinge device - Google Patents

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, the one described in Patent Document 1 is known.

  In this hinge device, both ends of the hinge arm are pivotally supported about the first axis and the second axis with respect to the hinge base attached to each of the vehicle body side and the door side. 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.

  The hinge device has a first check mechanism for applying a predetermined check force to the rotation of the door about the first axis, and a predetermined for the rotation of the door about the second axis. And a second check mechanism for applying a check force of. The first check mechanism is configured between a hinge base and a hinge arm on the vehicle body side that relatively rotate about the first axis, and is rotatably supported on a roller provided on the former side and on the latter side. The cam lever is opposed to each other, and the rollers and the cam surface of the cam lever are pressed against each other by a tension spring. Similarly, the second check mechanism is configured between a hinge base and a hinge arm on the door side that relatively rotate about the second axis, and is rotatable on the roller provided on the former side and on the latter side. The cam lever supported by the shaft is opposed to each other, and the latter cam lever is pressed against the former roller by a tension spring.

  In each of these first and second check mechanisms, a tension spring is stretched in a direction substantially perpendicular to the longitudinal direction of the cam lever, and a cam surface is formed on the inner surface side of the cam lever where the tension spring is located. .

Utility model registration No. 2500570

  However, since the cam surface is formed on the inner surface side of the cam lever where the tension spring is located in such a check mechanism, the tension spring must be provided at a position where it does not interfere with the roller on the cam surface and the hinge arm side. However, there was a problem that the deployment position was restricted. For example, when the deployment position of the tension spring is constrained and is set close to the position exposed to the outside when the door is opened, the tension spring is exposed to the outside when the door is opened, May be damaged. This is particularly noticeable when the door opening angle is as large as 170 degrees. Further, the roller on the hinge arm side must be deployed at a position where it does not interfere with the tension spring, and the deployment position is restricted. Also, the cam surface of the cam lever must be formed so as to avoid interference with the tension spring, and it is difficult to form it sufficiently large, making it impossible to set the optimum check force according to the door opening angle. There is a fear.

  The object of the present invention is to maintain a good appearance even when the door is greatly opened, and to efficiently deploy a check mechanism to set an optimal check force according to the opening angle of the door. It is in providing the hinge apparatus which can be performed.

In the hinge device of the present invention, a hinge base is attached to each of a vehicle body and a door, and one end of a hinge arm is pivotally supported on one of the hinge base so as to be rotatable about a first axis. The other end of the hinge arm is pivotally supported about the second axis , and the first check mechanism causes a relative relationship between one end of the hinge base and one end of the hinge arm. A predetermined check force is applied to the relative rotation between the hinge base and the other end of the hinge arm by the second check mechanism. is, a portion positioned on the exposed side which is exposed to the outside when the door is opened, the hinge device located inside the vehicle when the door is closed, the first check mechanism and the The two-check mechanism has one end pivotally supported by the hinge base, a cam surface is formed on the side surface located on one rotation direction side, and the other end is bent on the other rotation direction side. A cam lever, a compression spring provided between the other end of the cam lever and the hinge base, and biasing the cam lever toward the one rotation direction, and provided on the hinge arm. A contact portion that contacts the cam surface, and the intermediate portion of the cam lever extends substantially along the compression direction of the compression spring adjacent to the compression spring, and the other end of the cam lever is , the door is the located on the exposed side of the compression spring when opened, the hinge arm, the door than said compression spring located on the exposed side when opened, and the upper surface portion A U-shaped cross section having a side surface and a bottom surface, and when the door is opened, the side surface is positioned closer to the exposed side than the top surface and the bottom surface, and the contact portion is It is provided in the pin spanned between the said upper surface part and said lower surface part of a hinge arm, It is characterized by the above-mentioned.

  According to the present invention, in a hinge device having a check mechanism for applying a check force to the relative rotation of the hinge base and the hinge arm, the compression spring is used as a biasing means for the cam lever pivotally supported on the hinge base. , The middle part of the cam lever extends so that it almost follows the compression direction of the compression spring, and the other end of the cam lever is located outside the compression spring when the door is opened, so that the door is enlarged. Even when opened, the compression spring can be made inconspicuous to maintain a good appearance, and the check mechanism can be efficiently arranged to set an optimal check force in accordance with the door opening angle.

  Further, by forming the cam surface long over almost the entire side surface of the cam lever, the optimum check force can be set more finely with respect to the relative rotation of the hinge base and the hinge arm.

  In addition, by providing a contact portion on the pin that spans between the upper surface portion and the lower surface portion of the hinge arm having a substantially U-shaped cross section, the contact portion can be more firmly fixed to the hinge arm. The check force as expected can be generated reliably.

  Further, since the abutting portion includes the cam roller, the abutting portion and the cam surface of the cam lever can be smoothly moved relative to each other, the check force can be changed smoothly, and noise can be prevented.

  In addition, a link for setting a time when the relative rotation between the hinge base on the vehicle body side and the hinge arm is allowed and a time when the relative rotation between the hinge base on the door side and the hinge arm is allowed. By providing the mechanism and dividing the link mechanism and the check mechanism separately on the upper side and the lower side of the hinge arm, it is possible to efficiently deploy these mechanisms and reduce the size of the entire hinge device.

  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 side view of the hinge device when the door is closed, that is, when the door opening angle is 0 degree. 2, 3, and 4 are plan views of the hinge device when the door opening angles are 0 degrees, 90 degrees, and 170 degrees, respectively, and FIG. 2 corresponds to the view taken along the arrow II in FIG. 1.

  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. As shown in FIG. 1, the first hinge base 10 is formed in a substantially U-shaped cross section having an upper surface portion 10A, a side surface portion 10B, and a lower surface portion 10C. Similarly, the second hinge base 20 is also an upper surface portion 20A. , The side surface portion 20B and the lower surface portion 20C are formed in a substantially U-shaped cross section. As shown in FIG. 1, the hinge arm 30 is formed in a substantially U-shaped cross section having an upper surface portion 30A, a side surface portion 30B, and a lower surface portion 30C, and is formed in a substantially plane U-shape as shown in FIG. .

  A first shaft 31 penetrating the upper surface portion 30A and the lower surface portion 30C on one end side of the hinge arm 30 is spanned between the upper surface portion 10A and the lower surface portion 10C of the first hinge base 10. One end of the first shaft 31 is pivotally supported by the first hinge base 10 about the first shaft 31. When the opening angle of the door 2 is between 0 degrees and 90 degrees, as will be described later, one end of the hinge arm 30 rotates about the first shaft 31 in the directions of arrows A1 and A2 (FIGS. 2 and 3). reference). On the other hand, a second shaft 32 penetrating the upper surface portion 30A and the lower surface portion 30C on the other end side of the hinge arm 30 is spanned between the upper surface portion 20A and the lower surface portion 20C of the second hinge base 20. The other end of the hinge arm 30 is pivotally supported on the second hinge base 20 around the second shaft 32. When the opening angle of the door 2 is between 90 degrees and 170 degrees, the other end of the hinge arm 30 rotates about the second shaft 32 in the directions of arrows B1 and B2, as will be described later (FIGS. 3 and 4).

  On the upper side of the hinge arm 30, a time when the relative rotation between the first hinge base 10 around the first shaft 31 and one end of the hinge arm 30 is allowed, and a second around the second shaft 32. A link mechanism 50 is provided for setting the relative timing of allowing relative rotation between the hinge base 20 and the other end of the hinge arm 30. Further, on the lower side of the hinge arm 30, a predetermined check force is applied to the relative rotation between the first hinge base 10 and one end of the hinge arm 30 around the first shaft 31. A second check for applying a predetermined check force to the relative rotation of the first check mechanism 70, the second hinge base 20 and the other end of the hinge arm 30 about the second shaft 32. And a mechanism 80.

In the following, the configuration and operation of each of the link mechanism 50, the first check mechanism 70, and the second check mechanism 80 will be described.
(Link mechanism 50)
The link mechanism 50 includes a first control lever 51, a second control lever 52, and a link member 53 that connects them. As shown in FIG. 1, the first control lever 51 is pivotally supported by the shaft 54 on the upper surface 30A on one end side of the hinge arm 30 and is rotatable in the directions of arrows C1 and C2 in FIG. Similarly, the second control lever 52 is pivotally supported on the upper surface 30A 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 in FIG. 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.

  As shown in FIG. 5, 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. A cam follower portion 52A that faces the second cam 62 provided on the second hinge base 20 is formed. 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 stepped portion 61C located between them. Similarly, on the cam surface of the second cam 62, A raised portion 62A, a protrusive portion 62B, and a stepped portion 62C positioned therebetween are formed.

  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. 5, 6, and 7. Therefore, the operation is as follows.

  First, as shown in FIG. 5, the cam follower portion 51 </ b> A of the first control lever 51 extends along the raising portion 61 </ b> A of the first cam 61 until the opening angle reaches 0 to nearly 90 degrees by the opening operation of the door 2. To move the hinge arm 30 around the first shaft 31 in the arrow A1 direction. At this time, as shown in FIG. 5, the cam follower portion 52A of the second control lever 52 hits the stepped portion 62C of the second cam 62, and the rotation of the hinge arm 30 about the second shaft 32 in the direction of arrow B1. Stop movement.

  When the opening angle of the door 2 reaches nearly 90 degrees, 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 C1 direction is allowed. Therefore, the second control lever 52 can rotate in the direction of the arrow D1, and the cam follower portion 52A moves along the slope of the step portion 62C of the second cam 62. In a slight period from the door opening angle slightly before 90 degrees to a little over 90 degrees, the first control lever 51 rotates in the direction of the arrow C1 and the second control lever 52 moves to the arrow D1. In order to rotate in the direction, the hinge arm 30 rotates in the directions of arrows A1 and B2 around the first shaft 31 and the second shaft 32, respectively.

When the opening angle of the door 2 reaches 90 degrees, as shown in FIG. 6 , the hinge arm 30 comes into contact with the stopper pin 63 of the first hinge base 10 and the hinge arm centered on the first shaft 31. Thirty rotations in the direction of arrow A1 are prevented. As shown in FIG. 1, the stopper pin 63 is stretched between the upper surface portion 10 </ b> A and the lower surface portion 10 </ b> C of the first hinge base 10.

  After the opening angle of the door slightly exceeds 90 degrees, the cam follower portion 51A of the first control lever 51 is positioned at the protuberance portion 61B of the first cam 61, and the cam follower of the second control lever 52, as shown in FIG. The part 52 </ b> A is located at the raising part 62 </ b> A of the second cam 62. Then, the cam follower portion 52A of the second control lever 52 moves along the raising 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 B1 is allowed.

When the opening angle of the door 2 reaches 170 degrees, as shown in FIG. 7, the stopper portion 20E located on each of the upper surface portion 20A and the lower surface portion 20C of the second hinge base 20 , and the upper surface portion 30A of the hinge arm 30 And the stopper portion 30D positioned on each of the lower surface portions 30C are in contact with each other, and the door 2 is prevented from opening more than 170 degrees.

  Thus, in the opening operation of the door 2, the hinge arm 30 rotates in the direction of the arrow A1 about the first shaft 31 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 second shaft 32 in the direction of the arrow B1. 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.

  The starting force of the link mechanism 50 at such a transition time is such that 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 step portion 62C of the second cam 62 is subjected to the second control. It is given by the rotational force that rotates the lever 52 in the direction of the arrow D1.

  Next, until the opening angle of the door 2 is changed from 170 degrees to nearly 90 degrees due to the closing operation of the door 2, the cam follower portion 52A of the second control lever 52 is the raised portion of the second cam 62 as shown in FIG. It moves along 62A, and the rotation of the hinge arm 30 about the second shaft 32 in the arrow B2 direction is allowed. At this time, as shown in FIG. 7, the cam follower portion 51A of the first control lever 51 abuts against the step portion 61C of the first cam 61, and the rotation of the hinge arm 30 about the first shaft 31 in the direction of arrow A2 is performed. Stop movement.

  When the opening angle of the door 2 reaches nearly 90 degrees, as shown in FIG. 6, 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 of the second control lever 52 The rotation in the D2 direction is allowed. Further, as shown in FIG. 6, a contact member (contact portion) 64 provided at a fixed position of the second hinge base 20 contacts the second control lever 52. Due to the contact force received from the contact member 64, the second control lever 52 rotates in the direction of arrow D2, and the first control lever 51 rotates in the direction of arrow C2. The first control lever 51 rotates in the direction of the arrow C2 and the second control lever 52 is moved in the direction of the arrow C2 in a short period from when the door opening angle reaches nearly 90 degrees until it slightly exceeds 90 degrees. Since the hinge arm 30 rotates in the arrow D2 direction, the hinge arm 30 rotates in the arrows A2 and B2 directions around the first shaft 31 and the second shaft 32, respectively.

  When the opening angle of the door slightly exceeds 90 degrees, the cam follower 51A of the first control lever 51 is positioned at the protuberance 61B of the first cam 61 and the cam follower of the second control lever 52 as shown in FIG. The part 52 </ b> A is located at the raising part 62 </ b> A of the second cam 62. Then, the cam follower portion 51A of the first control lever 51 moves along the raising portion 61A of the first cam 61, and the rotation of the hinge arm 30 about the first shaft 31 in the direction of arrow A2 is permitted.

  Thus, in the closing operation of the door 2, the hinge arm 30 rotates in the direction of the arrow B2 around the second shaft 32 until the opening angle of the door 2 reaches 170 degrees to nearly 90 degrees, and the opening angle After a slight period until the angle slightly exceeds 90 degrees (hereinafter also referred to as “transition time”), the hinge arm 30 rotates about the first shaft 31 in the arrow A2 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.

  The starting force of the link mechanism 50 at such a transition time is given by the contact force of the contact member 64 against the second control lever 52. Thus, the abutment member 64 directly activates the link mechanism 50, so that the link mechanism 50 can be activated more reliably. In addition, the activation force can be applied to the link mechanism 50 by a very simple configuration in which the contact member 64 is fixedly provided on the second hinge base 20, and the activation force is applied using an adjustment screw or a spring. Compared to the above, it is possible to simplify the configuration of the entire hinge device and improve the productivity.

(First check mechanism 70)
The first check mechanism 70 includes a cam lever 71, a compression spring 72, and a cam roller (contact portion) 73. As shown in FIG. 8, the cam lever 71 is formed in a substantially plane L shape having one end portion 71 </ b> A, the other end portion 71 </ b> B, and the intermediate portion 71 </ b> C, and the one end portion 71 </ b> A is connected to the first hinge base 10 by the shaft 74. Are pivotally supported in the directions of arrows E1 and E2. The compression spring 72 is compressed and interposed between the other end portion 71B of the cam lever 71 and the spring receiving portion 10D of the first hinge base 10, and the cam lever 71 is biased in the direction of the arrow E2 by its restoring force. ing. The cam roller 73 is rotatably attached to the lower end of a pin 75 fixed at a fixed position of the hinge arm 30. The pin 75 is connected to the upper surface portion 30A and the lower surface portion 30C of the hinge arm 30 as shown in FIG. It is spanned between.

  A cam surface 71 </ b> D that press-contacts the cam roller 73 is formed in the intermediate portion 71 </ b> C of the cam lever 71. The cam surface 71D in this example is formed long from the intermediate portion 71C to the other end portion 71B. Further, the intermediate portion 71C of the cam lever 71 is located adjacent to the compression spring 72 and extends substantially along the compression direction of the compression spring 72, that is, the vertical direction in FIG. Further, the other end 71B of the cam lever 71 is located outside the compression spring 72 when the door 2 is opened as shown in FIGS. 9 and 10, that is, below the compression spring 72 in FIGS. To position.

  The first check mechanism 70 having such a configuration applies a predetermined check force to the relative rotation of the first hinge base 10 and the hinge arm 30 around the first shaft 31. As described above, the rotation range of the hinge arm 30 around the first shaft 31 corresponds to 90 degrees, that is, the range between 0 degrees and 90 degrees of the opening angle of the door 2. As the hinge arm 30 rotates, the cam roller 73 on the hinge arm 30 side moves as shown in FIG. 11 while rolling along the cam surface 71D of the cam lever 71.

  P1 in FIG. 11 is a moving position of the cam roller 73 when the rotation angle of the hinge arm 30 around the first shaft 31 is 0 degree as shown in FIG. P3 in FIG. 11 is a moving position of the cam roller 73 when the rotation angle of the hinge arm 30 around the first shaft 31 is 90 degrees as shown in FIGS. P2 in FIG. 11 is a moving position of the cam roller 73 when the rotation angle of the hinge arm 30 around the first shaft 31 is 60 degrees. For such rotation of the hinge arm 30, a check force according to the shape of the cam surface 71 </ b> D in pressure contact with the cam roller 73 is applied. In the case of this example, a check force is applied so as to give a predetermined click feeling when the rotation angle of the hinge arm 30 is 60 degrees and 90 degrees.

  Such a first check mechanism 70 has a compression spring because the other end 71B of the cam lever 71 is located outside the compression spring 72, that is, on the exposed side when the door 2 is opened as shown in FIGS. The exposure degree of 72 can be suppressed small, and the favorable external appearance of a hinge apparatus can be maintained. Moreover, since the hinge arm 30 is also located outside the compression spring 72 when the door 2 is opened, the appearance of the hinge device can be better maintained. Further, since the intermediate portion 71C of the cam lever 71 is adjacent to the compression spring 72 and extends substantially along the compression direction of the compression spring 72, the cam lever 71 and the compression spring 72 can be efficiently arranged.

  Further, since the cam surface 71D of the cam lever 71 is formed on the side surface of the intermediate portion 71C located on the opposite side to the compression spring 72, the position of the cam roller 73 can be adjusted without particularly considering interference with the compression spring 72. It is possible to set the cam surface 71D sufficiently large. By forming the cam surface 71D to be long, the optimum checking force according to the opening angle of the door 2 can be set finely. In this example, the cam surface 71D can be formed longer because the formation range of the cam surface 71D extends to the position of the other end 71B.

  Further, since the pin 75 is stretched between the upper surface portion 30A and the lower surface portion 30C of the hinge arm 30 and the cam roller 73 is attached to the pin 75, the cam roller 73 is firmly positioned, so that the more accurate. Checking power can be given.

(Second check mechanism 80)
The second check mechanism 80 includes a cam lever 81, a compression spring 82, and a cam roller (contact portion) 83. As shown in FIG. 8, the cam lever 81 is formed in a substantially plane L shape having one end portion 81 </ b> A, the other end portion 81 </ b> B, and the intermediate portion 81 </ b> C, and the one end portion 81 </ b> A is Are pivotally supported in the directions of arrows F1 and F2. The compression spring 82 is compressed and interposed between the other end portion 81B of the cam lever 81 and the spring receiving portion 20D of the second hinge base 20, and the cam lever 81 is urged in the direction of arrow F2 by its restoring force. ing. The cam roller 83 is rotatably attached to the lower end of a pin 85 fixed at a fixed position of the hinge arm 30. The pin 85 is connected to the upper surface portion 30A and the lower surface portion 30C of the hinge arm 30 as shown in FIG. It is spanned between.

  A cam surface 81 </ b> D that presses against the cam roller 83 is formed at the intermediate portion 81 </ b> C of the cam lever 81. The cam surface 81D in this example is formed long from the intermediate part 81C to the other end part 81B. The intermediate portion 81C of the cam lever 81 is located adjacent to the compression spring 82, and extends substantially along the compression direction of the compression spring 82, that is, the vertical direction in FIG. Further, the other end 81B of the cam lever 81 is positioned outside the compression spring 82, that is, above the compression spring 82 in FIGS. 9 and 10 when the door 2 is opened as shown in FIGS. To do.

  The second check mechanism 80 having such a configuration applies a predetermined check force to the relative rotation of the second hinge base 20 and the hinge arm 30 around the second shaft 32. As described above, the rotation range of the hinge arm 30 around the second shaft 32 corresponds to 80 degrees, that is, a range between 90 degrees and 170 degrees of the opening angle of the door 2. As the hinge arm 30 rotates, the cam roller 83 on the hinge arm 30 side moves as shown in FIG. 12 while rolling along the cam surface 81D of the cam lever 81.

  P11 in FIG. 12 is a moving position of the cam roller 83 when the rotation angle of the hinge arm 30 around the second shaft 32 is 0 degree as shown in FIGS. P12 in FIG. 12 is a moving position of the cam roller 83 when the rotation angle of the hinge arm 30 around the second shaft 32 is 80 degrees as shown in FIG. For such rotation of the hinge arm 30, a check force according to the shape of the cam surface 81 </ b> D in pressure contact with the cam roller 83 is applied. In the case of this example, a check force is applied so as to give a predetermined click feeling when the rotation angle of the hinge arm 30 is 0 degrees and 80 degrees.

  Such a second check mechanism 80 has a compression spring because the other end 81B of the cam lever 81 is located outside the compression spring 82, that is, on the exposed side when the door 2 is opened as shown in FIGS. The exposure degree of 82 can be suppressed small, and the favorable external appearance of a hinge apparatus can be maintained. Moreover, since the hinge arm 30 is also located outside the compression spring 82 when the door 2 is opened, the appearance of the hinge device can be better maintained. Further, since the intermediate portion 81C of the cam lever 81 is adjacent to the compression spring 82 and extends substantially along the compression direction of the compression spring 82, the cam lever 81 and the compression spring 82 can be efficiently deployed.

  Further, since the cam surface 81D of the cam lever 81 is formed on the side surface of the intermediate portion 81C located on the side opposite to the compression spring 82, the position of the cam roller 83 can be adjusted without particularly considering interference with the compression spring 82. The cam surface 81D can be set sufficiently large. By forming the cam surface 81D to be long, it is possible to finely set an optimal check force according to the opening angle of the door 2. In this example, since the formation range of the cam surface 81D extends to the position of the other end portion 81B, it can be formed longer.

In addition, since the pin 85 is stretched between the upper surface portion 30A and the lower surface portion 30C of the hinge arm 30 and the cam roller 83 is attached to the pin 85, the cam roller 83 is firmly positioned and more accurate. Checking power can be given.
(Other embodiments)
The link mechanism 50 in the above-described embodiment is configured so that the first hinge starts from a time (second rotation time) during which the second hinge base 20 and the hinge arm 30 are allowed to rotate relative to each other while the door 2 is closed. The timing shifts to a time allowing the relative rotation of the base 10 and the hinge arm 30 (first rotation timing), and the driving force at the time of the shift is directly applied by the contact member 64 provided on the second hinge base 20. Given. On the other hand, during the opening of the door 2, the second hinge base 20 and the hinge arm 30 are moved from a time when the relative rotation of the first hinge base 10 and the hinge arm 30 is allowed (first rotation time). The timing shifts to a time permitting relative rotation (second rotation timing), and the starting force at the time of the shift is that the stepped portion 62C of the second cam 62 rotates the second control lever 52 in the direction of the arrow D1. It is given by the turning power when.

  However, the activation force at the time of the latter transition can be directly applied by the contact member without passing through the cam, similarly to the activation force at the time of the former transition. In that case, a contact member may be provided at a fixed position of the first hinge base 10 so that, at the time of the latter transition, the contact member abuts against the link mechanism 50 to give an activation force.

  In the above-described embodiment, the center of rotation of the hinge arm 30 is moved from the first shaft 31 to the second shaft 32 while the door 2 is opened, while the hinge arm 30 is moved while the door 2 is closed. The rotation center is configured to move from the second shaft 32 to the first shaft 31. However, on the contrary, 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 rotated while the door 2 is closed. The moving center can be configured to move from the first shaft 31 to the second shaft 32. 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 side view of the hinge apparatus in embodiment of this invention when the opening angle of a door is 0 degree | times. It is the top view which looked at the whole hinge apparatus of FIG. 1 from the arrow II direction. It is a top view of the whole hinge apparatus of FIG. 1 in case the opening angle of a door is 90 degree | times. It is a top view of the whole hinge apparatus of FIG. 1 in case the opening angle of a door is 170 degree | times. 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. It is a top view of the check mechanism part of the hinge apparatus of FIG. 1 when the opening angle of a door is 0 degree | times. It is a top view of the check 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 check mechanism part of the hinge apparatus of FIG. 1 in case the opening angle of a door is 170 degree | times. It is explanatory drawing of the relationship between the cam lever and cam roller of the 1st check mechanism in FIG. It is explanatory drawing of the relationship between the cam lever and cam roller of the 2nd check mechanism in FIG.

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 64 Contact member (contact part)
70 First check mechanism 71 Cam lever 72 Compression spring 73 Cam roller (contact portion)
80 Second check mechanism 81 Cam lever 82 Compression spring 83 Cam roller (contact portion)

Claims (4)

A hinge base is attached to each of the vehicle body and the door . One end of the hinge arm is pivotally supported about one of the hinge bases on one side of the hinge base, and the other side of the hinge arm is supported on the other side of the hinge base. The other end is pivotally supported about the second axis , and is predetermined by the first check mechanism for relative rotation between one end of the hinge base and one end of the hinge arm. The second check mechanism applies a predetermined check force to the relative rotation between one of the hinge base and the other end of the hinge arm, and the door is opened. The part located on the exposed side exposed to the outside when the door is in the hinge device located inside the vehicle when the door is closed ,
The first check mechanism and the second check mechanism are:
A cam lever that is pivotally supported at one end by the hinge base, a cam surface is formed on a side surface located on one rotation direction side, and the other end is bent toward the other rotation direction side;
A compression spring provided between the other end of the cam lever and the hinge base and biasing the cam lever toward the one rotation direction;
An abutting portion provided on the hinge arm and abutting against the cam surface of the cam lever;
With
The intermediate portion of the cam lever extends substantially along the compression direction of the compression spring adjacent to the compression spring;
The other end of the cam lever is located on the exposed side of the compression spring when the door is opened ,
The hinge arm is located on the exposed side of the compression spring when the door is opened, and has a U-shaped cross section having an upper surface portion, a side surface portion, and a lower surface portion, and when the door is opened The side surface portion is located on the exposed side with respect to the upper surface portion and the lower surface portion,
The said contact part is provided in the pin spanned between the said upper surface part and the said lower surface part of the said hinge arm, The hinge apparatus characterized by the above-mentioned.   The hinge device according to claim 1, wherein the cam surface is formed over substantially the entire side surface of the cam lever located on the one rotation direction side. The hinge device according to any one of claims 1 to 2 , wherein the contact portion includes a cam roller that can roll along the cam surface of the cam lever. A first rotation timing that allows relative rotation between one of the hinge base and one end of the hinge arm; and a relative rotation between the other of the hinge base and the other end of the hinge arm. A link mechanism for setting a second rotation timing that allows rotation;
The hinge according to any one of claims 1 to 3 , wherein the link mechanism, the first check mechanism, and the second check mechanism are arranged separately on an upper side and a lower side of the hinge arm. apparatus.

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