JP3226102B2 - Hinge structure of trunk lid - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge structure for rotatably (opening and closing) a trunk lid of an automobile.

[0002]

2. Description of the Related Art FIGS. 5 and 6 show a conventional hinge structure of a trunk lid in an automobile. In the drawings, reference numeral 1 denotes a hinge member mounted on the trunk lid, and 2 denotes a vehicle body (for example, a rear body). The hinge bracket 3 fixed to the window lower panel) is a torsion bar formed by bending a single linear elastic member into a predetermined shape.

[0003] One end 1a of the hinge member 1 is rotatably mounted on a hinge shaft 4 provided on a hinge bracket 2, and the other end is mounted on the back surface of the front end of the trunk lid. . The U-shaped one end 3 a of the torsion bar 3 is engaged with the hinge bracket 2, and the other end 3 b of the torsion bar 3 is inserted into a hole 5 formed in the hinge member 1. As a result, the hinge member 1 and thus the trunk lid are constantly urged in the direction of arrow A (opening direction) in FIG. 6 by the torsion torque of the torsion bar 3.

When the trunk lid is locked in the fully closed state, the hinge member 1 is accordingly held at the position shown by the solid line in FIG. Then, with the unlocking of the trunk lid, the hinge member 1 and the trunk lid are smoothly rotated in the direction of arrow A around the hinge shaft 4 by the torsion torque of the torsion bar 3 to the position shown by the dashed line in FIG. The trunk lid is moved forward, and is held in the lid opening position at a predetermined wide angle.

FIG. 7 shows a hinge structure of a conventional trunk lid using a tension coil spring as the balancer 6. As shown in FIG. 7, this hinge portion structure is provided with hinge shafts 4 at corners of a partition panel 7 and a rear window lower panel 8 which partition a cabin and a trunk room, and a hinge member around the hinge shaft 4 is provided. 1 is mounted rotatably, and a balancer 6 composed of a tension coil spring is installed between a bracket 9 fixed to the hinge member 1 and a vehicle body (not shown).

The hinge member 1 and the trunk lid attached to the hinge member 1 are constantly urged in the direction of arrow B in FIG. 7 by the spring force of the balancer 6.
When the trunk lid is opened, the hinge member 1 is configured to rotate from the position shown by the solid line in FIG. 7 to the position shown by the dashed line.

[0007]

However, in the case of the torsion bar type hinge structure shown in FIGS. 5 and 6, it is necessary to dispose the hinge bracket 2 in front of the hinge shaft 4, so that space is not required. Is restricted. That is, the hinge shaft 4 of the trunk lid generally needs to be set at a position where the volume of the trunk room is reduced as much as possible and the trunk lid is widely opened so that luggage can be easily taken in and out. It is desirable to arrange as far forward as possible. However, since the hinge bracket 2 is located forward of the hinge shaft 4 as described above, there is a disadvantage that the hinge shaft 4 must be arranged rearwardly by that much. In addition, the space in the trunk room cannot be used effectively.

Further, in the case of the torsion bar system,
Torsion bar 3 for maintaining the angle when opening the trunk lid
It is necessary to perform the setting by the torsional force of the hinge shaft 4 and the caulking force of the hinge shaft 4. However, in reality, it is very difficult to maintain the caulking force constant over a long period of time.

In the case of the balancer type hinge structure shown in FIG. 7, the force f in the rotational direction due to the spring force F of the balancer 6 is balanced with the moment M about the hinge shaft 4 due to the weight of the trunk lid. For this purpose, the point of action P of the tension coil spring (balancer 6) must be located as forward as possible. Therefore, as shown in FIG.
a, and the bracket 9 needs to be arranged in the recess 7a.

[0010] The present invention has been made in view of such circumstances, and its object is to dispose it in a limited narrow space without affecting the peripheral body shape and the like. In addition, it is an object of the present invention to provide a trunk lid hinge structure having a configuration capable of maintaining a caulking force relating to opening / closing of the trunk lid at a rotational operation force at the time of initial setting for a long period of time.

[0011]

According to the present invention, a hinge body having a substantially U-shape is provided.
Hinge shaft mounting portion connected to one end of the hinge body
And a trunk link connected to the other end of the hinge body.
Using a hinge member constituted by a
Attach the trunk lid mounting part of the hinge member to the trunk lid
At the same time, the hinge shaft mounting portion of the hinge member is rotatably mounted on a hinge bracket fixed to the vehicle body, and the hinge member is mounted near a curved portion of the hinge body of the hinge member.
Link bracket, and the link bracket
And one end of the first link lever is rotatable around the support shaft.
Attach and attach the hinge bracket to the hanging piece
Attach one end of link lever 2 so that it can rotate about the support shaft
And reconnect the other ends of the first and second link levers.
By pivotally connected to one another at bets, and the hinge bracket and the hinge member is disposed on the link coupled to ruri down <br/> click mechanism, an opening direction to the hinge member through said link mechanism A biasing means for constantly acting the biasing force of the hinge member, and a region projected from a side surface of a rotation region in which the hinge member rotates while the trunk lid changes from the fully closed state to the fully opened state.
In the region, the link mechanism is configured to be operated. According to the present invention, a part disposed at the rear of the passenger compartment is provided.
Partition panel and above the rear of the partition panel
Rear window lower panel, and the rear window
Between the lower part of the lower panel and the partition panel
Surrounded by erected extension panels
A space area is provided at the corner of the trunk room, and the space
A state where the hinge bracket is stored and arranged inside the area
Under the hinge bracket on the extension panel
The hinge bracket is fixed to one end of the hinge member.
By pivotally mounting to the bracket, the space
So that the center of rotation of the hinge member is located inside the region
are doing.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows a rear part of an automobile 10 having a hinge structure of a trunk lid according to the present invention. In FIG. 1, 11 is a rear window glass, 12 is a side quarter panel, and 13 is a trunk lid. , 14 is a rear window panel, 15 is a rear end panel, 1
6 is a rear bumper. FIGS. 2 and 3 show a hinge structure 17 for rotatably (opening and closing) the trunk lid 13 described above.

In FIG. 2, reference numeral 18 denotes a partition panel disposed at the rear of the vehicle compartment. A trunk room 19 is defined by the partition panel 18, the rear window lower panel 14, and the side quarter panel 12. . An extension panel 20 is provided between the partition panel 18 and the rear window lower panel 14.
A part of the hinge bracket 22 is accommodated in a space area 21 surrounded by 8 and 20 and fixed to the extension panel 20 with screws.

Further, the above-mentioned extension panel 2
2 and 3, an elongated hole 23 is formed extending in the front-rear direction, and the hinge member 24 can be rotated by the hinge bracket 22 with the hinge member 24 inserted through the elongated hole 23. It is installed in a proper state. That is, the above-mentioned hinge member 24 has a substantially U-shaped hinge body 24a.
And a hinge connected to one end of the hinge body 24a.
Diaxial mounting portion 24c and the other end of the hinge main body 24a
And a trunk lid mounting portion 24b connected to the rear window lower panel 14 and the partition panel 18 when the trunk lid 13 is opened and closed. Then, the hinge member 24
hinge shaft attachment portion 24c side portion of a is inserted into the long hole 23 of the extension panel 20, the mounting portion 24c
Hinge shaft 25 attached is pivotably hinged in a caulking state the hinge bracket 22 to. Thus, the hinge shaft 25 of the hinge member 24 is disposed in the space area 21, that is, the corner of the trunk room, so that a sufficient trunk lid opening angle can be obtained. On the other hand, the front end of the trunk lid 13 is integrally attached to the mounting portion 24b of the hinge member 24 by bolting or the like, and the trunk lid 13 is supported by the pair of left and right hinge members 24.

As described above, the extension panel 20 is provided with the elongated hole 23 for inserting the hinge member 24. However, in order to compensate for the decrease in strength due to the existence of the elongated hole 23, the hinge bracket 22 is provided. Used is a structure having sufficient strength.

As shown in FIGS. 2 and 3, a link bracket 26 is integrally attached to the hinge member 24 near a curved portion of the hinge body 24a. And
One end of a first link lever 27 is attached to the link bracket 26 so as to be rotatable around a support shaft 28, and one end of a second link lever 29 is connected to a hanging piece 22 a of the hinge bracket 22 by a support shaft 30. The other end of each of the first and second link levers 27 and 29 is rotatably connected to each other by a rivet 31. Thus, the hinge bracket 22 and the hinge member 24 fixed to the vehicle body are connected to the link mechanism 3 including the first and second link levers 27 and 29.
2 are linked to each other.

Further, one end of a balancer 33 composed of a tension coil spring is engaged with the first link lever 27, and the other end (not shown) is engaged with the vehicle body. Therefore, the hinge member 24 is constantly urged in the opening direction of the trunk lid by the spring force (tensile force) of the balancer 33 described above. When the trunk lid is closed, a trunk lid lock mechanism (not shown) is used as shown in FIGS.
Is held together with the trunk lid 13 at the position shown by the solid line.

The operating area of the link mechanism 32 described above,
That is, when the trunk lid 13 rotates from the fully closed position to the fully opened position, the first and second link levers 27, 29
Region but to rotate is substantially trunk lid 13 is configured such hinge member 2 4 when rotated in the fully open position from the fully closed position is within a region projected from the side areas that rotates I have. Thus, the operation area of the link mechanism 32 is substantially limited to the operation area of the hinge member 24, so that the space in the trunk room 19 does not need to be used.

Next, the operation of the above-structured hinge structure will be described. First, when the trunk lid 13 is closed, the trunk lid 13 is locked to the fully closed position by a lock mechanism (not shown), and the hinge member 24 receives the spring force from the balancer 33 in response to this, as shown in FIG. It is arranged at the position shown.

Under these conditions, the trunk lid 1
When the lock of the third member 3 is released, the hinge member 24 and the trunk lid 13 are pivoted about the hinge shaft 25 as the link mechanism 32 is operated by the spring force acting on the first link lever 27. 2, the trunk lid 13 is opened by turning in the direction of arrow C. Specifically, the link mechanism 32 operates from the state shown by the solid line in FIG. 4 to the state shown by the dashed line, and accordingly, the hinge member 24 is smoothly rotated from the position shown by the solid line in FIG.
The trunk lid 13 is held in a fully open state while maintaining a predetermined opening angle by the total force of the spring force of the balancer 33 and the caulking force of the hinge shaft 25, the support shafts 28, 30 and the rivet 31.

According to the hinge structure of the trunk lid 13 as described above, the link mechanism 32 operates substantially within the rotation area of the hinge member 24, and thus has the following advantages. That is, since the link mechanism 32 does not protrude and operate from the portion N (see FIG. 4) of the hinge member 24 and the link mechanism 32 which is closest to and facing the partition panel 18, the hinge shaft 25 and the hinge member 24 can be arranged as close to the partition panel 18 as possible.
9 is not lost. Therefore, as shown in FIG. 5, even in a limited narrow space where the torsion bar 3 is not large enough to hook the torsion bar 3 on the bracket 2, the shape of other parts such as the partition panel 18 is changed. Therefore, the hinge mechanism can be provided without performing the above operation, and the opening angle of the trunk lid 13 can be made large, so that a sufficient space for loading and unloading the luggage to and from the trunk room 19 can be secured. Further, when closing the trunk lid 13 after the luggage is put in the luggage compartment, there is no inconvenience that the link mechanism 32 projects from the rotation region of the hinge member 24 and hits the luggage.

Furthermore, according to the present embodiment, since there are many rotating parts by swaging (the hinge shaft 25, the support shafts 28, 30 and the rivets 31), the swaging force relating to opening and closing of the trunk lid 13 can be distributed to the respective rotating parts. In addition, the initially set force for holding the trunk lid can be maintained for a longer period than in the case where only one caulking portion is provided. Further, since the space area 21 is located at the innermost corner of the trunk room 19 and the hinge shaft 25 is disposed there, the space of the trunk room 19 can be effectively used without reducing the volume of the trunk room 19. At the same time, it is possible to set the trunk lid 13 so that it can be opened and closed greatly, so that luggage can be easily put in and out of the trunk room 19.

When it is desired to change the spring force of the balancer 33 in response to a change in the weight of the trunk lid 13 (such as mounting of an optional part such as a rear spoiler), the spring hooking position on the vehicle body is changed in several steps. By doing so, it can be performed very easily. Therefore, the operation is easier than replacing the torsion bar.

Further, in the case of this embodiment, the link mechanism 32
, The opening / closing operation force of the trunk lid 13 can be set to be constant according to the weight of the trunk lid 13 and the spring force of the balancer 33.

As described above, one embodiment of the present invention has been described.
The present invention is not limited to the embodiments described above, and various modifications and changes can be made based on the technical idea of the present invention. For example, the first link lever 2 to the hinge member 24
7 may be set inside the substantially U-shaped hinge main body 24a. Further, the balancer 33 is not limited to a tension coil spring, but may be a gas spring or the like.

[0027]

As described above, according to the present invention, a link mechanism composed of two link members is provided to rotate the trunk lid to obtain a predetermined opening angle, and the rotation area of the hinge member supporting the trunk lid is provided. since those configured to actuate <br/> the link mechanism in projected area from the side, placing the hinge member without changing the shape of the other member to limited space of the trunk room In addition, the hinge shaft can be arranged at a position where the trunk lid can be greatly opened while slightly reducing the volume of the trunk room.

Also, by using the two link members as described above, the number of rotating parts due to caulking increases,
Accordingly, the caulking force for opening and closing the trunk lid is distributed to the respective rotating parts. Therefore, the initially set caulking force can be kept constant over a longer period of time as compared with the case where the caulked portion is one portion of the hinge shaft.

Further, the urging force of the urging means (for example, the balancer 33 shown in the embodiment) for constantly urging the link mechanism can be easily changed as compared with the exchange of the torsion bar. , The opening / closing operation force of the trunk lid can be set to be constant in accordance with the weight of the trunk lid and the urging force of the urging means.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rear portion of an automobile having a hinge structure of a trunk lid according to the present invention.

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

FIG. 3 is a perspective view showing a hinge structure of the trunk lid according to the present invention.

FIG. 4 is a side view schematically showing the operation of the above-mentioned hinge structure.

FIG. 5 is a perspective view showing a hinge structure of a conventional trunk lid.

FIG. 6 is a side view schematically showing the operation of the above-mentioned conventional hinge part structure.

FIG. 7 is a cross-sectional view showing a hinge structure of a conventional trunk lid using a balancer formed by a tension coil spring as urging means for a hinge member.

[Explanation of symbols]

 13 Trunk lid 17 Hinge part structure 18 Partition panel 19 Trunk room 20 Extension panel 22 Hinge bracket 23 Long hole 24 Hinge member 24c One end 25 Hinge shaft 27 First link lever 29 Second link lever 32 Link mechanism 33 Balancer (tensile coil spring )

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-58-176378 (JP, A) JP-A-62-1980 (JP, U) JP-A-63-117979 (JP, U) JP-A 63-17979 12482 (JP, U) Japanese Utility Model Showa 49-110407 (JP, U) Japanese Utility Model Showa 49-49619 (JP, U) Japanese Utility Model 48-16485 (JP, Y1) Japanese Utility Model 48-40252 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) B62D 25/12

Claims (2)

(57) [Claims] A hinge body having a substantially U-shape;
A hinge shaft mounting portion connected to one end of the hinge body,
Trunk lid connected to the other end of the hinge body
A hinge member constituted by an attachment portion, and a trunk lid attachment portion of the hinge member is attached to the trunk lid.
And a hinge shaft mounting portion of the hinge member.
Is rotatably mounted on a hinge bracket fixed to the vehicle body, and a link is provided near a curved portion of the hinge body of the hinge member.
A bracket is integrally attached, and one end of the first link lever is supported on the link bracket.
Attached so as to be pivotable about a shaft,
Connect one end of the second link lever to the hanging piece of the
It is rotatably attached to the center, and the first and second
The other end of the link lever is rotatably connected to each other with rivets
By the hinge bracket and disposed hinge members and Brighter link mechanism to link binding and provided a biasing means acting normally to the opening direction of the biasing force to the hinge member through said link mechanism, substantially The hinge member rotates while the trunk lid changes from the fully closed state to the fully opened state .
A hinge portion of the trunk lid , wherein the link mechanism is operated within an area projected from the trunk portion. 2. A partition disposed at the rear of the passenger compartment.
Panel and at the upper back of the partition panel
A rear window panel and the rear window panel
Between the bottom of the partition and the partition panel
Space area surrounded by extension panels
At the corner of the trunk room, and accommodate the hinge bracket inside the space area
The extension panel under the
By mounting rotatably by fixing di bracket one end of the hinge member to the hinge bracket, before
Hinge structure of the trunk lid according to claim 1 whose serial it was to place the center of rotation of the hinge member to the interior of the spatial region, characterized by.