JPH0251031B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a trunk lid hinge for attaching a trunk lid to a vehicle so that the trunk lid can be opened and closed.

Examples of conventional trunk lid hinges include those shown in FIGS. 1 and 2. Reference numeral 1 in the figure denotes hinge arms, which are arranged in pairs at symmetrical positions in the vehicle width direction (arrow X direction in the figure), and one end of which is rotatably supported by a hinge bracket 3 attached to both ends of the rear parcel 2 in the vehicle width direction. At the same time, the other end is fixed to a trunk lid reinforcement 5 provided on the back surface of the trunk lid 4 with bolts 6. This hinge arm 1 rotates the trunk lid 4 upward to a predetermined position and opens the trunk compartment 7.
The beam is shaped like a curved beam with an appropriate curvature so that it does not come into contact with the rear waist panel 9 that supports the rear window glass 8 provided between the hinge bracket 3 and the trunk lid 4 when the trunk lid 4 is opened. It extends inward.

10 is a torsion bar, which extends across the width direction of the vehicle.
One end of each is engaged with and fixed to the hinge bracket 3, and the other end is engaged with the hinge arm 1 so as to be twisted as the hinge arm 1 rotates. As shown in the figure, the torsion bar 10 extends in the vehicle width direction within the trunk room 7 with its mounting position shifted downward from the hinge center 11 of the hinge arm 1, and is designed to absorb the torsional moment for upwardly rotating the trunk lid 4. (Refer to Utility Model Application Publication No. 135364/1983 for a similar structure).

In addition, 12 in the figure is the rear seat, rear parcel 2
A brace 13 is provided on the rear side, standing between the front panel and the floor panel (not shown).

However, in the case of such a conventional trunk lid hinge, since the hinge arm 1 straddles the rear waist panel 9 and is attached at both ends to the rear parcel 2 and the trunk lid 4, the size and curvature of the hinge arm 1 becomes larger and protrudes into the trunk room 7, which makes it difficult to use the space in the trunk room 7 effectively and requires some ingenuity in the loading method of luggage. Also, torsion bar 10
The trunk also protruded into the trunk compartment 7, and was quite a hindrance when loading items such as golf bags, for example.

The present invention has focused on these conventional problems, and has made the hinge arm smaller so that it does not protrude into the trunk, thereby preventing the torsion bar from protruding into the trunk.

Specifically, the trunk lid hinge according to the present invention includes a pair of left and right hinge brackets provided in the lower space of the rear waist panel in front of the upper edge drip groove of the trunk lid opening, and a pair of left and right hinge brackets connected to the trunk lid. hinge arms are each rotatably attached, and two torsion bars are disposed opposite to each other between the hinge bracket and the hinge arm, and one end of the linear torsion bar main body, which is a twisted portion of the torsion bar, is connected to the hinge. The hooks are aligned with the hinge center of the arm at a corresponding position, and one of the two hooks bent at both ends of the torsion bar body is engaged with the hinge arm, and the other is locked with the hinge bracket.

The present invention will be explained below based on the drawings.
In the following description, parts common to those of the prior art are given the same reference numerals, and redundant description will be omitted.

FIGS. 3 and 4 are diagrams showing an embodiment of the present invention. To explain its structure, reference numeral 20 in the figure is a hinge bracket, which has a substantially housing shape that combines a first reinforcing member 21 and a second reinforcing member 22, and a hinge arm 23 is held between both reinforcing members 21 and 22. At the same time, it is rotatably supported at the hinge center 25. This hinge bracket 20
are fitted into the space formed by the rear parcel 2 and the rear waist panel 9 in front of the upper edge drip groove 9a of the trunk lid opening by an appropriate means such as welding, and are placed at symmetrical positions in the vehicle width direction. It is fixedly installed so as to connect both the panels 2 and 9, and also serves as a reinforcement for the rear waist panel 9 to improve its rigidity.

The hinge arm 23 is formed into a curved beam shape with an appropriate curvature so as not to come into contact with the rear waist panel 9 and both the first and second reinforcing members 21 and 22 located on the side of the trunk lid 4 from the hinge center 25 during rotation. It is smaller and has a smaller curvature than the conventional one.

The torsion bar 26 is attached to the hinge bracket 20
and the hinge arm 23 so as to intersect with each other and face each other. These two torsion bars 26 each have a shape in which hook portions 31a and 31b are bent at both ends 30a and 30b of a straight torsion bar main body 30, which is a twisted portion. Of the two hook parts 31a and 31b, one hook part 31a is engaged with the notch part 27 of the hinge arm 23, and the other hook part 31b is engaged with the notch part 27 of the hinge arm 23.
is engaged with a notch 28 provided in the first reinforcing member 21 of the hinge bracket 20, so that it does not protrude into the trunk room 7. Furthermore, both ends 30a of the linear torsion bar main body 30,
One end 30a of 30b is aligned with a position corresponding to the hinge center 25 of the hinge arm 23.

Here, the state in which the trunk lid 4 is rotated to open and close the trunk compartment 7 will be explained.

When the trunk lid 4 is rotated, the hinge arm 23 rotates along a small rotation locus about the hinge center 25 as the trunk lid 4 rotates. Further, the torsion bar 26 uses the end of the first reinforcing member 21 that is engaged with the notch 28 as a fulcrum,
It can be simply twisted or untwisted at the hinge center 25. That is, one end 30a of the torsion bar main body 30 is connected to the hinge arm 2.
Since the hook portion 31a is aligned with the corresponding position of the hinge center 25 of No. 3, it does not move even if the hook portion 31a rotates as the hinge arm 23 rotates. Further, the other end 30b is also fixed to the first reinforcing member 21 of the hinge bracket 20, so that it is immovable. That is, both ends 30a, 3 of the torsion bar main body 30
0b are both immovable, so the torsion bar body 30
As such, it only twists, and the whole thing does not swing up or down. Therefore, the torsion bar main body 30 does not protrude into the trunk room 7 and interfere with luggage in the trunk room 7. still,
The torsional force of the torsion bar 26 and the weight of the rear window glass 8 are always applied to the rear waist panel 9, but the rear waist panel 9 is connected to the rear parcel 2 by a hinge bracket 20 that also serves as a rain force, improving its rigidity and reducing flexure. There's no need to worry.

Since the trunk lid hinge according to the present invention has the content as described above, the hinge arm only needs to be made so that it does not come into contact with the rear waist panel and the portion of the hinge bracket that is located on the trunk lid side from the hinge center. Since the distance from the hinge center to the edge of the opening is shortened, it can be made smaller and have a smaller curvature than before, so the overhang into the trunk is small, and the inside of the trunk can be used more effectively. You can get the effect of becoming. Furthermore, since the torsion bar does not protrude into the trunk, the hinge arm can be made smaller and have a smaller curvature, and the trunk can be used more effectively. Furthermore, by connecting the rear parcel and rear waist panel with a hinge bracket as in the above embodiment, the space below the rear waist panel can be made into a closed cross-sectional structure, which improves the rigidity of the rear waist panel and reduces torsion resistance of the torsion bar. It is also possible to prevent the rear waist panel and the rear parcel from bending even when force or the weight of the rear window glass is applied without increasing the number of parts.

[Brief explanation of the drawing]

Fig. 1 is a perspective explanatory view of the rear of a vehicle using a conventional trunk lid hinge, Fig. 2 is a sectional view showing the trunk lid hinge of Fig. 1, and Fig. 3 is an embodiment of the present invention. FIG. 4 is a perspective explanatory view showing how the hinge arm and torsion bar are attached to the hinge bracket. 1, 23... Hinge arm, 2... Rear parcel, 4... Trunk lid, 7... Trunk room, 8... Rear window glass, 9... Rear waist panel, 9a... Upper edge drip groove, 10, 2
6... Torsion bar, 20... Hinge bracket, 25... Hinge center, 30... Torsion bar body, 30a, 30b... End, 31a, 3
1b...Hook part, X...Vehicle width direction.

Claims (1)

[Scope of Claims] 1. A pair of left and right hinge brackets are provided in the lower space of the rear waist panel in front of the upper edge drip groove of the trunk lid opening, and a pair of left and right hinge arms connected to the trunk lid are rotatable respectively to the hinge brackets. mounting, and disposing two torsion bars facing each other between the hinge bracket and the hinge arm,
aligning one end of the linear torsion bar main body, which is the twisted portion of the torsion bar, with a position corresponding to the hinge center of the hinge arm, and engaging one of both hook parts bent at both ends of the torsion bar main body with the hinge arm; A trunk lid hinge characterized in that the other side is locked to a hinge bracket.