JP2003252059A - Hinge for opening/closing body of vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide comfortable opening torque for an opening/closing body without using a damper stay. <P>SOLUTION: A hinge 3 in this invention comprises: a fixed hinge member 4 fixed on a back door body; a movable hinge member 5 rotatably connected to the fixed hinge member 4 and attached to a window panel; a first link member 6 with its one end rotatably connected to the fixed hinge member 4; a second link member 7 with its one end rotatably connected to the other end of the first link member 6 and with its other end connected to the movable hinge member 5 rotatably on an axis line deviated from the rotational axis line of the movable hinge member 5; and a coil spring 8 disposed between the fixed hinge member 4 and the first link member 6, applying spring force to the movable hinge member 5 in the direction to open the window panel through the first link member 6 and the second link member 7. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge for an opening / closing body for a vehicle, and more particularly to a hinge for an opening / closing body for a vehicle in which a torque acting on the opening / closing body can be optimally set.

[0002]

2. Description of the Related Art An opening / closing body for a vehicle, for example, a window plate 2 provided on a back door body 1 as shown in FIG. 15, is conventionally a window plate 2 which is joined to an upper edge portion 111 of a door opening 11 by a hinge 91. The left and right edges of the are supported by damper stays 92. By the way, the window plate 2 is subjected to a combined torque of the opening direction torque due to the extension force of the damper stay 92 and the closing direction torque due to its own weight. When the window plate 2 is opened and closed, the torque in the opening direction due to the damper stay 92 changes as shown by a torque curve x'in FIG. 16, while the torque in the closing direction due to the weight of the window plate 2 is around in FIG. Since the torque changes as shown by the torque curve y, the combined torque of these torques takes a maximum value in the opening direction at the half-open position and decreases from the half-open position to the fully open position, as shown by the torque curve z'in FIG. Become.

[0003]

As described above, in the conventional damper, the torque acting on the window plate 2 in the opening direction decreases from the half open position to the full open position. When trying to obtain a sufficient opening holding force when fully opened, the torque in the opening direction acting on the window plate 2 at the half open position becomes excessive, and the resistance received when closing the window plate 2 becomes large. there were. In addition, in order to secure a space for providing the damper paste 92,
There is also a problem that the opening 11 of the window plate 2 becomes narrow.

Therefore, the present invention solves such a problem by providing a hinge for an opening / closing body for a vehicle capable of exerting an appropriate torque on the opening / closing body when opening / closing the opening / closing body. The purpose is to provide.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, a hinge of a vehicle opening / closing body that rotatably supports the opening / closing body is fixed to a vehicle body (1) side. The fixed side hinge member (4), the movable side hinge member (5) rotatably coupled to the fixed side hinge member (4) and fixed to the opening / closing body (2) side, and one end fixed First rotatably coupled to the side hinge member (4)
One end of the link member (6) is rotatably coupled to the other end of the first link member (6), and the other end of the link member (6) is centered on an axis deviated from the rotation axis of the movable side hinge member (5). A second link member (7) rotatably coupled to the first link member (6) and the second link member (6) provided between the fixed side hinge member (4) and the first link member (6). A biasing member (8) for applying a biasing force to the movable side hinge member (5) in the direction of opening the opening / closing body (2) via the member (7).
It has and.

In the first aspect of the present invention, the torque acting on the first link member by the biasing member is transmitted to the movable side hinge member via the second link member, so that the first link member and the second hinge member are provided. When the opening / closing body is opened / closed, appropriate torque can be applied to the opening / closing body by setting the length and initial position of the opening / closing body.

In the second aspect of the present invention, the fixed-side hinge member (4) is provided with a pair of standing walls (411, 412) provided side by side at a predetermined interval, and the first link member (6) is , A shaft portion (61) rotatably installed between the compatible walls (411, 412) and one end fixed to the shaft portion (61) and the other end rotatable to the second link member (7) And a link arm (62) coupled to the compatible wall, and the urging member is provided between the compatible walls (411, 412) with the shaft portion (61) of the first link member (6) inserted. It is a coil spring (8) provided. In the second aspect of the present invention, the coil spring is disposed between the pair of upright walls for supporting the shaft portion of the first link member, so that the coil spring can be made compact.

In the third aspect of the present invention, the movable side hinge member (5) has the shaft portion (51) rotatably installed between the compatible walls (411, 412) and the shaft portion (51) at one end. A hinge arm (52) fixed and the other end fixed to the opening / closing body (2), and one end fixed to the shaft portion (51) and the other end pivoting to the second link member (7). A crank part (53) operably coupled to the hinge part (53) is provided, and the hinge arm (52) is disposed on the outer surface side of one standing wall (412). The link arm (62) of (6) and the second link member (7) are arranged on the outer surface side of the other standing wall (411). In the third aspect of the present invention, the hinge arm of the movable-side hinge member is arranged on the outer surface side of one standing wall, and the link arm and the second link member of the first link member are arranged on the outer surface side of the other standing wall. Since it is arranged, it can be made compact without the members interfering with each other.

In the fourth aspect of the present invention, a back door body (1) having an opening (11) for a window and a space (S) inside, a window plate (2) capable of closing the opening (11), A back door for a vehicle, comprising a hinge (3) that supports an upper edge portion (21) of the window plate (2) in a vertically rotatable manner with respect to an upper edge portion (111) of the opening (11), The hinge (3) is rotatably coupled to the fixed side hinge member (4) fixed to the back door body (1) and the fixed side hinge member (4) and is fixed to the window plate (2). Movable side hinge member (5) and one side fixed side hinge member (4)
A first link member (6) rotatably coupled to the first link member (6), one end rotatably coupled to the other end of the first link member (6), and the other end to a movable hinge member (5). A second link member (7) rotatably coupled about an axis deviated from the rotation axis, a fixed-side hinge member (4), and a first link member.
The movable side hinge member (5) is provided between the link member (6) and the first link member (6) and the second link member (7) so as to attach the window plate (2) to the movable hinge member (5). And a biasing member (8) for applying a biasing force. In the fourth aspect of the present invention, since the torque acting on the first link member by the biasing member is transmitted to the movable side hinge member via the second link member, the lengths of the first link member and the second hinge member are reduced. Depending on the settings such as the initial position, when opening and closing the window board,
Appropriate torque according to the opening can be applied to the window plate. Further, since the hinge is provided with the biasing member, it is not necessary to provide a damper stay unlike the conventional case.

In the fifth aspect of the present invention, the hinge (3) is disposed inside the back door body (1), and the back door body (1) has a window plate of the movable side hinge member (5). A part (52) fixed to (2) protrudes and a through hole (123) for allowing rotation of the movable side hinge member (5) is formed, and the through hole (123) is a window plate ( It is adapted to be covered by the window plate (2) when closing 2). In the fifth aspect of the present invention, since the hinge is arranged in the internal space of the back door body, there is no need to provide a space for arranging the hinge between the back door body and the window plate. Further, when the window plate is opened, only the movable-side hinge member of the constituent members of the hinge portion is exposed, and when the window plate is closed, the through hole is covered by the window plate, which is good-looking.

The reference numerals in the parentheses indicate the correspondence with the concrete means described in the embodiments described later.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of a back door for a vehicle. A back door body 1 having an opening 11 for loading and unloading parcels has a window plate 2 for opening and closing the opening 11. Is attached. FIG. 1 shows a state in which the window plate 2 is opened. The upper edge portion 21 of the window plate 2 is vertically pivoted to the upper edge portion 111 of the opening 11 by the hinges 3 at two places spaced apart in the left-right direction. It is freely connected. As shown in FIG. 2, the opening upper frame 12 of the back door body 1 is formed by abutting both side edges of an outer panel 121 and an inner panel 122, and a space S is formed therein, and the hinge 3 is opened. It is arranged inside the upper edge frame 12.

Details of the hinge 3 are shown in FIG. The hinge 3 includes a fixed-side hinge member 4, a movable-side hinge member 5, a first link member 6, a second link member 7, and a biasing member 8. The fixed-side hinge member 4 includes a base plate 41 having standing walls 411 and 412 provided side by side with a predetermined gap in the left-right direction and a connecting wall 413 connecting the tops thereof, and the left and right standing walls 4
It is provided with a flat plate-shaped reinforcing plate 42 joined between the lower ends of 11, 412. The lower ends of the left and right standing walls 411, 412 are bent outward and overlapped with the left and right ends of the reinforcing plate 42.
A flange 414 is formed by the overlapping portion of the standing walls 411, 412 and the reinforcing plate 42. The fixed side hinge member 4 is bolted to the inner panel 122 of the opening upper edge frame 12 of the back door body 1 by the flange 414 (FIG. 2).

The movable-side hinge member 5 has the standing wall 411,
A shaft portion 51 rotatably installed between the top ends of 412.
And a flange 52 that is fixed to one end of the shaft portion 51 and extends in a substantially arc shape, and is fixed to the upper edge portion 21 of the window plate 2 at the tip thereof.
1 is provided with a hinge arm 52, and a crank portion 53 whose base end is fixed to the other end of the shaft portion 51. The crank portion 53 is a long plate-shaped plate body in the present embodiment. The hinge arm 52 is the upper edge frame 12 of the opening of the back door body 1.
The front end flange 521 is fixed to the lower surface of the upper edge portion 21 of the window plate 2 by projecting outward from the through hole 123 (FIGS. 1 and 2) formed in the upper panel 121. The hinge arm 52 moves through the through hole 12 as the shaft 51 rotates forward and backward.
The window plate 2 is opened / closed between the fully closed position (solid line in FIG. 2) and the fully open position (chain line in FIG. 2). The through hole 123 is provided at a position where it is covered by the window plate 2 when the window plate 2 is closed.

The first link member 6 includes a shaft portion 61 rotatably installed between the other ends of the standing walls 411 and 412, and a shaft portion 6.
The link arm 62 has a base end fixed to one end. The link arm 62 is a long plate-shaped plate body in the present embodiment. In addition, the second link member 7 is configured by a long plate-shaped plate body in the present embodiment, and one end of the second link member 7 has a link arm 62.
Is rotatably coupled to the tip of the. Second link member 7
The other end of the second link member 7 is rotatably connected to one end of the crank portion 53, so that the other end of the second link member 7 is on the rotation axis of the movable side hinge member 5, that is, the shaft portion 51 in this embodiment. Is connected to the movable side hinge member 5 so as to be rotatable about an axis deviated from the rotation axis of the. In this way, the hinge arm 52 is arranged on the outer surface side of the standing wall 412, and the crank portion 53, the link arm 62, and the second link member 7 are arranged on the outer surface side of the standing wall 411. The biasing member 8 is a coil spring in the present embodiment, and the shaft portion 61 is inserted into the coil spring 8. One end of the coil spring 8 is fixed to the shaft portion 61, and the other end is fixed to the standing wall 411.

In the vehicle back door having such a structure, if the lengths of the crank portion 53 of the hinge 3, the second link member 7 and the link arm 62 are properly set, the opening amount of the window plate 2 is changed (opened). Amount), that is, the rotation amount of the shaft portion 51 that rotates integrally with the window plate 2, that is, the rotation amount of the shaft portion 61, that is, the change amount of the torsion angle of the coil spring 8 whose one end is fixed to the shaft portion 61. It can be set to different values depending on the opening of the plate 2. A preferred example of this will be described below.

When the window plate 2 is fully closed (rotation amount of the shaft portion 51 is 0 °)
The twist angle of the coil spring 8 is 1 as shown in FIG.
80.3 °, from which the window plate 2 is opened and the shaft 5
When the rotation angle of No. 1 (that is, the rotation angle of the window plate 2) becomes 20 ° (the rotation amount of the shaft portion 51 during this period is 20 °), the twist angle of the coil spring 8 becomes 176.4 ° as shown in FIG. (The rotation amount of the shaft portion 61 during this period is 3.9 °). When the window plate 2 is further opened and the rotation angle of the shaft portion 51 becomes 40 ° (the rotation amount of the shaft portion 51 during this period is 20 °), the torsion angle of the coil spring 8 becomes 165.8 ° as shown in FIG. (The rotation amount of the shaft portion 61 during this period is 10.6 °), and when the shaft portion 51 is further opened by 20 ° up to 60 ° by the subsequent opening of the window plate 2 (the rotation amount of the shaft portion 51 during this period is 20 °). As shown in FIG. 7, the twist angle of the coil spring 8 is 151.9.
(The rotation amount of the shaft portion 61 during this period is 13.9 °). Thereafter, every time the window plate 2 is opened and the shaft portion 61 is rotated by 20 ° (FIGS. 8, 9, and 10), the torsion angles of the coil spring 8 are 138.5 °, 126.7 °, and 11 °.
5.8 ° (The rotation amount of the shaft portion 61 during this time is 13.
4 °, 11.8 °, 10.9 °), when the window plate 2 is fully opened and the rotation angle of the shaft portion 51 becomes 130 ° (the rotation amount of the shaft portion 51 during this time is 10 °). Thus, the torsion angle of the coil spring 8 is 110 ° (the shaft 61
Is 15.8 °).

Here, when the value of (rotation amount of shaft portion 61 / rotation amount of shaft portion 51) multiplied by the distance from the shaft portion 51 to the center of gravity of the window plate 2 is defined as the virtual moment length L, In the above example, the virtual moment length L changes as shown in FIG. 12 with respect to the opening degree of the window plate 2. The torque To in the opening direction of the window plate around the shaft portion 51 by the coil spring 8 is T, where the torsion angle of the coil spring 8 is θ and the spring constant is K.
o = θ · L · K, the torque T in the above example
o is approximately as shown by the torque curve x in FIG. The shaft portion 5 due to the weight of the window plate 2 against the torque To
The torque in the closing direction of the window plate for one turn is the torque curve y in FIG.
Since it is the same as that already shown in FIG. 16 as shown in FIG. 16, the torque (opening urging force) in the window plate opening direction around the shaft portion 51 that combines these torques is as shown by the torque curve z in FIG. Becomes This torque has a negative value in the initial opening of the window plate 2 to ensure the reliable closing of the window plate 2, and maintains a positive value slightly larger than "0" without becoming excessive during the opening. Then, it becomes larger as the window plate 2 approaches the fully opened position. By changing the torque acting on the window plate 2 in this way, a sufficient opening holding force of the window plate 2 can be obtained in the fully opened state, and even when the window plate 2 is closed, a large resistance is not generated and it is smooth. Can be closed. According to this embodiment, since the conventional damper stay is not used, the opening 11 of the window plate 2 is not narrowed, and the torque acting on the window plate 2 is changed depending on the ambient temperature when the window plate is opened or closed. The operation feeling of does not change.

In the above embodiment, the opening / closing structure of the window plate provided on the back door has been described. However, the hinge used here is not only the window plate but also the opening / closing of the back door door body itself and the opening / closing of other vehicle opening / closing bodies. Can be widely applied to.

[0020]

As described above, according to the hinge of the vehicle opening / closing body of the present invention, when opening / closing the opening body, it is possible to apply an appropriate torque to the opening / closing body according to the opening thereof.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention with a window plate of a vehicle back door opened.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is an overall perspective view of a hinge.

FIG. 4 is a schematic side view of an essential part showing the operation of the hinge.

FIG. 5 is a schematic side view of an essential part showing the operation of the hinge.

FIG. 6 is a schematic side view of an essential part showing the operation of the hinge.

FIG. 7 is a schematic side view of an essential part showing the operation of the hinge.

FIG. 8 is a schematic side view of an essential part showing the operation of the hinge.

FIG. 9 is a schematic side view of an essential part showing the operation of the hinge.

FIG. 10 is a schematic side view of an essential part showing the operation of the hinge.

FIG. 11 is a schematic side view of an essential part showing the operation of the hinge.

FIG. 12 is a graph showing changes in virtual moment length with respect to window opening.

FIG. 13 is a graph showing a change in opening torque with respect to a window plate opening.

FIG. 14 is a graph showing a change in opening torque with respect to a window plate opening.

FIG. 15 is a perspective view of a conventional vehicle back door with a window plate opened.

FIG. 16 is a graph showing a change in opening torque with respect to a window plate opening.

FIG. 17 is a graph showing a change in opening torque with respect to a window plate opening.

[Explanation of symbols]

1 ... Backdoor body, 11 ... Opening, 111 ... Upper edge part, 1
23 ... Through hole, 2 ... Window plate, 21 ... Upper edge part, 3 ... Hinge,
4 ... Fixed side hinge member, 41 ... Substrate, 411, 412 ...
Standing wall, 5 ... Movable side hinge member, 51 ... Shaft part, 52 ... Hinge arm, 53 ... Crank part, 6 ... First link member, 6
1 ... Shaft part, 62 ... Link arm, 7 ... Second link member,
8 ... Coil spring, S ... Space.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hiroshi Maekawa             Toyo, 100 Kanayama, Ichiriyama-cho, Kariya city, Aichi prefecture             Inside Tatai Co., Ltd. F term (reference) 2E050 AA03 BA07 CA03 EA01 EB02

Claims (5)

[Claims] 1. A hinge of a vehicle opening / closing body that rotatably supports the opening / closing body in a vertical direction, and a fixed side hinge member fixed to a vehicle body side, and rotatably coupled to the fixed side hinge member. A movable hinge member fixed to the opening / closing body side, a first link member having one end rotatably coupled to the fixed hinge member, and one end rotatably coupled to the other end of the first link member. And a second link member having the other end rotatably coupled to the movable side hinge member about an axis deviated from the rotation axis thereof, the fixed side hinge member and the first link member. A vehicle provided with an urging member that is provided between the first link member and the second link member and applies an urging force to the movable-side hinge member in a direction to open the opening / closing body. Hinge for the opening and closing body. 2. The fixed-side hinge member includes a pair of standing walls provided side by side at a predetermined interval, and the first link member has a shaft portion rotatably installed between the compatible walls. And a link arm having one end fixed to the shaft portion and the other end rotatably coupled to the second link member, wherein the biasing member is a shaft of the first link member. 2. The hinge for a vehicle opening / closing body according to claim 1, wherein the hinge is a coil spring arranged between the compatible walls in a state where the portion is inserted. 3. The movable-side hinge member includes a shaft portion rotatably installed between the compatible walls, and a hinge arm having one end fixed to the shaft portion and the other end fixed to the opening / closing body. And a crank portion having one end fixed to the shaft portion and the other end rotatably coupled to the second link member, and the hinge arm is disposed on the outer surface side of the one standing wall. The opening / closing for a vehicle according to claim 2, wherein the crank portion, the link arm of the first link member, and the second link member are disposed on the outer surface side of the other standing wall. Body hinge. 4. A back door body having an opening for a window and having a space therein, a window plate capable of closing the opening, and an upper edge portion of the window plate in a vertical direction with respect to an upper edge portion of the opening. A backdoor for a vehicle, the hinge being fixed to a backdoor body, and the hinge plate being rotatably coupled to the fixed-side hinge member and a window plate. A movable-side hinge member fixed to the first link member, one end of which is rotatably coupled to the fixed-side hinge member, and one end of which is rotatably coupled to the other end of the first link member. A second link member, the other end of which is rotatably coupled to the movable side hinge member about an axis deviated from the rotation axis thereof, and is provided between the fixed side hinge member and the first link member. And the first link member and And a biasing member that applies a biasing force to the movable-side hinge member in the opening direction of the window plate via the second link member. 5. The hinge is arranged inside the back door body, and a portion of the movable side hinge member fixed to the window plate is projected from the back door body and the movable side hinge is provided. The through hole for allowing the rotation of the member is formed, and the through hole is covered by the window plate when the window plate is closed. Vehicle back door.