JPH0352943Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Technical Field" The present invention relates to a hinge structure for a vehicle lid, such as a trunk lid, and particularly to prevent the open vehicle lid from closing unexpectedly or wobbling due to strong winds. Regarding the hinge structure to prevent.

"Prior art and its problems" Figures 4 to 6 are
This figure shows the hinge structure of a vehicle lid (trunk lid) proposed in No. 57113 (Utility Model Application No. 61-173677). The hinge arm 11 made of a hollow pipe body has a U-shaped part 11a to avoid interference with the vehicle body.The outer end of this U-shaped part 11a is fixed to the trunk lid 12, and the inner end is fixed to the vehicle body. It is pivotally connected to a fixed base 13. 14 is its hinge pin. This hinge pin 14 has a sliding groove 16 in the diametrical direction, and a spring hook pin 17 is implanted in the hinge arm 11. In the reduced diameter state of the spiral spring 15, the inner end hook 15a at the center thereof is engaged with the slot groove 16, and the outer end hook 15b thereof is engaged with the spring hanging pin 17, so that the hinge arm 1
1 (trunk lid 12) in the direction of opening.

The hinge structure of the lid with the above configuration has excellent strength because the hinge arm 11 is made of a pipe body, and since the trunk lid 12 is biased in the opening direction by the spiral spring 15, it can be attached by, for example, a torsion bar. The feature is that the space in the trunk room can be made larger compared to when gaining power.

However, this hinge structure has the problem that, since there is no positive stopper mechanism when the trunk lid 12 is in the open state, the opening position of the trunk lid 12 becomes unstable, and the trunk lid 12 may close unexpectedly, especially if it is hit by strong winds. Something became clear later. If the trunk lid 12 closes unexpectedly, there is a risk of fingers or items being caught.

``Purpose of the invention'' This invention solves the above problems of conventional devices,
To provide a hinge structure capable of holding a vehicle lid in an open position with a simple structure and requiring no special operation to close it.

``Summary of the invention'' For this reason, the present invention pivots an interlocking arm having an interlocking groove to a base fixed to the vehicle body by positioning it below the center of rotation of the hinge arm that fixes the vehicle lid. An interlocking pin that fits into the interlocking groove is fixed to the hinge arm, and the interlocking arm engages with the interlocking pin to hold the vehicle lid in the open position until a certain load in the closing direction is applied to the vehicle lid. It is characterized in that it is provided with spring means for holding it in place.

``Embodiments of the invention'' The invention will be described below with reference to illustrated embodiments. 1 to 3 show an embodiment of the present invention, and the same components as those of the conventional device shown in FIGS. 4 to 6 are given the same reference numerals. The hinge arm 11 has a U-shaped part 11a as in the conventional device, and the trunk lid 12 is fixed to the outer end thereof.
The inner end portion is pivotally connected to the base 13 by a hinge pin 20.

A spring hook pin 21 is fixed to the base 13 so as to be located below the hinge pin 20 when the trunk lid 12 is closed, and one end of an interlocking arm 24 is pivotally connected to the spring hook pin 21. This interlocking arm 24 has an interlocking groove 26.
A linking pin 27 fixed to the hinge arm 11 is fitted into the linking groove 26. Therefore, when the trunk lid 12 is opened or closed, the hinge arm 11 rotates around the hinge pin 20, and at the same time, the interlocking pin 2 of the hinge arm 11 rotates.
7 moves within the interlocking groove 26, the interlocking arm 2
4 will swing around the spring hanging pin 21.

The present invention uses the interlocking pin 27 and the interlocking arm 2 to hold the trunk lid 12 in the open position.
4, and an Ω-shaped wire spring 30 is fixed to the interlocking arm 24. wire spring 30
As is clear from FIGS. 1 and 3, the U-shaped portion 30a has a pair of inwardly bent portions 30b at the tip thereof,
Further, each inwardly bent portion 30b has a locking portion 30c at its tip. This wire spring 30 has its U-shaped portion 30a locked to the bent locking edge 31 of the linking arm 24 at the tip of the interlocking groove 26 (on the opposite side of the spring hook pin 21), and the locking portion 30c is locked. It is inserted into the stop hole 32, and its pair of inwardly bent portions 30b protrude inwardly from the left and right sides of the interlocking groove 26. This inwardly bent portion 30b elastically engages with the interlocking pin 27 moving within the interlocking groove 26, and provides resistance to the opening and closing of the trunk lid 12 when it is open.

A spiral spring 15 is hooked between the spring hook pin 21 and the interlocking arm 24 for biasing the trunk lid 12 in the opening direction. That is, the spring hanging pin 21 has an oval portion 21a.
is fitted into an oval hole 13a formed in the side wall of the base 13 to restrict its rotation, and on the opposite side of the oval part 21a, a slotted groove 22 for hooking the inner end hook 15a of the spiral spring 15 is formed. ing. Further, a spring hook bracket 25 for hooking the outer end hook portion 15b of the spiral spring 15 is fixed to the interlocking arm 24 by spot welding or the like. Since the spiral spring 15 is latched as described above in its diameter-reduced state, the interlocking arm 24 is urged to rotate counterclockwise in FIGS. 1 and 2, and the trunk lid 12 is indirectly opened. It is urged to rotate in the direction. Note that 28 is a cushion rubber fixed to the base 13, which softens the shock when the hinge arm 11, which rotates in the opening direction by the spiral spring 15, collides with the base 13.

In this device configured as described above, when the trunk lid 12 is unlocked, the trunk lid 12 opens by the force of the spiral spring 15, and the interlocking pin 2
7 moves within the interlocking groove 26 of the interlocking arm 24.
When the trunk lid 12 reaches the vicinity of the open end, when a force in the opening direction is further applied to the trunk lid 12, the interlocking pin 27 bends inwardly into the inwardly bent portion 30b of the Ω-shaped wire spring 30 protruding into the interlocking groove 26. It is pressed and deformed to come out from this (chain line in Figure 2, chain line in Figure 3).

In order to close the trunk lid 12 from this state, it is necessary to apply a force in the closing direction to the trunk lid 12 and press and deform the pair of inwardly bent portions 30b of the wire spring 30 outward by the interlocking pin 27. Therefore, the inwardly bent portion 30b of the wire spring 30
By setting the spring force appropriately, trunk lid 1
Even if the wire spring 2 tries to close due to strong winds or the like, this can be prevented by the inwardly bent portion 30b of the wire spring 30. Therefore, unexpected closing of the trunk lid 12 and accidents caused by this can be prevented.

The illustrated embodiment is a spiral spring 15.
Since the center of the spiral spring 15 is located below the rotation center (hinge pin 20) of the hinge arm 11, the maximum radius R of the spiral spring 15 is
If the distance is set smaller than the distance between the spring hanging pin 21 and the spring hanging pin 21, the spring 15 will not protrude above the hinge pin 20. Furthermore, even if it does protrude, the amount of protrusion will be smaller than when the center of the spiral spring 15 coincides with the hinge pin 20, so the amount of protrusion from the center of the hinge pin 20 toward the passenger compartment will be small, and This has the advantage that the vehicle interior can be made larger. However, for example, a spiral spring 1 is attached to the hinge pin 20.
Even if 5 is not applied, the basic effect of the present invention is not impaired.

In addition, in the above embodiment, the hinge arm 11 is made of a pipe material as in Utility Model Application No. 60-57113 (Utility Model Application No. 61-173677), which has the effect of superior strength. However, the strength of the hinge arm 11 is not an issue, and the trunk lid 12 can be held in the open position regardless of the shape of the hinge arm 11. may be formed.

``Effect of the invention'' As described above, according to the invention, it is possible to provide a certain amount of resistance to closing the lid in an open state, thereby preventing the lid from being closed inadvertently due to strong winds, etc. . To this end, the present invention utilizes an interlocking pin fixed to a hinge arm and an interlocking arm having an interlocking groove in which the pin is slidably fitted, and the interlocking arm is provided with a spring means protruding into the interlocking groove. Therefore, there is almost no increase in cost.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing an embodiment of the vehicle lid hinge structure of the present invention, Fig. 2 is a front view of the assembled state, and Fig. 3 is the relationship between the interlocking pin and wire spring when the lid is open. FIG. 4 is a perspective view of the trunk lid shown as an example of a vehicle lid in an open state, and FIG. 5 is a perspective view of the trunk lid shown in FIG. FIG. 6, a perspective view of the hinge structure proposed by the author, is a sectional view taken along the - line in FIG. 5. DESCRIPTION OF SYMBOLS 11... Hinge arm, 12... Trunk lid, 13... Base, 15... Spiral spring, 15a... Inner end hook, 15b... Outer end hook, 20... Hinge pin, 21... Spring hanging pin, 22... ...Sliding groove, 24...Interlocking arm, 25
...Spring bracket, 26...Interlocking groove, 27
...Interlocking pin, 28...Cushion rubber, 30...
...Wire spring (spring means), 30a...U-shaped portion, 3
0b...inward bending part, 30c...locking part.

Claims (1)

[Claims for Utility Model Registration] (1) One end of a hinge arm, the other end of which is fixed to a vehicle lid, is pivotally connected to a base fixed to a vehicle body, and this hinge arm is attached in the opening direction by a spring means. In the hinge structure of the vehicle lid, an interlocking arm having an interlocking groove is pivotally attached to the base at a position below the center of rotation of the hinge arm, and the interlocking arm is fitted into the interlocking groove on the hinge arm. The interlocking pin is fixed, and the interlocking arm is provided with spring means that engages with the interlocking pin and holds the vehicle lid in the open position until a certain load in the closing direction is applied to the vehicle lid. A vehicle lid hinge structure featuring: (2) In claim 1 of the utility model registration claim, there is provided a vehicle lid in which the inner end of a spiral spring that biases the hinge arm in the opening direction is locked to the pivot pin to the base of the interlocking arm. hinge structure. (3) In claim 1 or 2 of the utility model registration, the spring means is an Ω-shaped wire spring with a pair of inwardly bent portions formed at the tip of the U-shaped portion; A hinge structure for a vehicle lid in which a pair of inwardly bent portions protrude into an interlocking groove and engage with an interlocking pin.