JPH0352947Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention includes a base fixed to a vehicle body, a hinge arm having one end rotatably supported by the base via a hinge pin and the other end fixed to a lid.
The present invention relates to a hinge device for a vehicle lid, comprising a spiral spring that biases the lid in an opening direction.

BACKGROUND OF THE INVENTION The above-mentioned hinge device for rotatably connecting a trunk lid for a trunk room, a hood for an engine room, etc. to a vehicle body is conventionally known. This hinge device uses a spiral spring that can be configured compactly instead of a torsion bar that occupies a large space as the spring that biases the lid in the opening direction, so the space inside the lid can be used effectively and the space can be expanded substantially. I can do it.

By the way, in conventional hinge devices of this type, the locking position of the inner end of the spiral spring is set at the same position as the rotation center of the hinge arm, so that almost the upper half of the spring is located closer to the rotation center of the hinge arm. It also protrudes upward. However, in the area above the center of the hinge arm, the vehicle body or parts attached thereto are located close to the center, so there is a risk that the upwardly protruding spiral spring may interfere with the vehicle body or its components. For example, in a hinge device for a trunk lid, a rear tray that constitutes a storage space behind the rear seat may be located just above the center of rotation of the hinge arm, and in such cases, the spiral spring may interfere with this rear tray. There is a risk that For this reason, in the past, it was necessary to make the rear tray part near the spiral spring protrude upwards to prevent interference between the two, but doing so had the disadvantage that the interior space of the car was narrowed by the amount of protrusion of the rear tray. .

Purpose The purpose of the present invention is to provide a hinge device of the type described at the beginning, which can eliminate the above-mentioned conventional drawbacks with a simple structure and can suppress interference between the spiral spring and the stored items below the lid. It is.

Configuration The present invention includes a base fixed to the vehicle body, a hinge arm having one end rotatably supported by the base via a hinge pin and the other end fixed to the lid.
A locking member rotatably supported by a bracket fixed to the hinge arm, a first link connected to the locking member in a relatively non-rotatable manner, and one end of the locking member being connected to the first link and the other end being a base. and a spiral spring whose inner end is locked to the locking member and whose outer end is locked directly to the hinge pin of the hinge arm or to a sleeve fitted to the pin. , when the lid is closed, a proximal end of the bracket is fixed to a hinge arm portion below the hinge pin, and the bracket protrudes from the proximal end in a direction opposite to the free end of the lid; The center of the locking member supported on the distal end side and to which the inner end of the spiral spring is locked is located below the center of the hinge pin, and is either directly below the center of the pin or at a rear end thereof. We propose a configuration in which the position is shifted away from the free end side.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 1, a trunk room 2 is provided at the rear of the vehicle body 1, and its upper opening is opened and closed by a trunk lid 4, which is attached to the vehicle body 1 by a pair of hinge devices 3, 3a according to the present invention. It is pivotally mounted to be rotatable in the direction of arrow A. Both hinge devices 3, 3a have the same structure except that they are symmetrical, and therefore only one hinge device 3 will be described.

As shown in FIGS. 2 and 3, the hinge device 3 has a base 5 fixed to the vehicle body 1 by bolts (not shown), and hinge pins 7 are connected to both hanging side plates 5a of the base 5. Hinge arm 8
One end side 8a of the arm 8 is rotatably supported.
The other end side 8b is fixed to the base end side of the lid 4. This configuration allows the lid 4 to rotate in the direction of arrow A relative to the vehicle body 1.

When the lid 4 is closed, it is locked to the vehicle body by a locking device (not shown).
When the locking device is unlocked, the lid 4
is rotated counterclockwise in FIG. 2 by the spiral spring 9, the weight of the lid and the spring force of the spring 9 are balanced, and the lid is manually opened to the position shown by the chain line.

As mentioned above, the lid 4 is urged in the opening direction by the spiral spring 9, and the outer end 9b of the spring 9 has its tip hook attached to the hinge pin 7.
The sleeve 11 is rotatably fitted into the sleeve 11. Also, a bracket 12 is attached to the hinge arm 8.
is fixed to this bracket 12, and a locking member 10 is attached to this bracket 12.
is supported rotatably around its center P, and the inner end 9a of the spiral spring 9 is locked in a slot 10a formed in the locking member 10 (see FIG. 4). When the lid 4 is closed, its base end is fixed to the hinge arm portion below the hinge pin 7, and protrudes from the base end in the opposite direction to the free end of the lid 4. A locking member 10, to which the inner end of the spiral spring 9 is locked, is rotatably supported.

Furthermore, one end side of a first link 13 is connected to the locking member 10 so as not to be relatively rotatable, and the free end side of a second link 14 is connected to the other end side of this link 13 through a first pivot pin 15 so as to be relatively rotatable. It is pivoted.
Further, the base end side of this second link 14 is connected to the second pivot pin 1.
6 is pivotally connected to the side plate 5a of the base 5.

The inner end 9a of the spiral spring 9 is connected to the locking member 1 supported by the bracket 12 of the hinge arm 8.
0 as described above, the lid 4
When the spring inner end 9a is closed, the locking position of the spring inner end 9a, that is, the center P of the locking member 10 is located below the hinge pin 7, which is the center of rotation of the hinge arm 8. Therefore, although the spiral spring 9 has a width W in the vertical direction, the spring 9 does not protrude significantly above the hinge pin 7. Therefore, even if the rear tray 17 on which objects are placed or the vehicle body 1 are located above the base 5, there is no fear that the spring 9 will interfere with them.

Also, when the lid 4 is closed, the spiral spring 9
By installing the spring in a state where the diameter of the lid 4 is reduced, its function as a spring that biases the lid 4 is not impaired in any way. That is,
A locking member 10 that locks the spiral spring inner end 9a is rotatable with respect to the hinge arm 8, and the hinge arm 8 including the bracket 12, the first link 13, the second link 14, and the base 5 are four-jointed. Since it constitutes a rotational chain, when the lid 4 is closed, the spiral spring 9 reduces its diameter and biases the lid 4 in the opening direction, and as the lid 4 is opened, the four-bar rotational chain is activated. , the locking member 10 rotates and the diameter of the spring increases. Conversely, as the lid 4 is closed, the locking member 10 rotates in the opposite direction, the diameter of the spring 9 decreases, and energy is stored.

By the way, as mentioned above, the inner end of the spiral spring 9 is attached to the hinge arm side, more precisely, the locking member 1 is attached to the bracket 12 fixed to the hinge arm 8.
When connected through 0, when lid 4 is opened,
The spring 9 rotates and lifts up together with the hinge arm 8, as shown by the chain line in FIG. At this time, if the lifting amount is large, the spring 9 will easily hit the storage items stored in the lower part of the lid 4, that is, the trunk room 2.

Therefore, in the configuration according to the present invention, when the lid 4 is closed, the center P of the locking member 10, that is, the inner end locking position of the spiral spring 9 is located below the hinge pin 7 as described above. Rather, it is placed directly below the center of the pin 7, or shifted further away from the free end of the lid 4. That is, the center P of the locking member 10 is disposed directly below the center of the hinge pin 7 or closer to the inside of the vehicle (on the side of the arrow X). With this configuration, the amount of lifting of the spring 9 when the lid 4 is opened is suppressed, and the spring 9
Interference with stored items can be prevented or suppressed.

In addition, since the inner end of the spiral spring 9 is connected via the locking member 10 to the bracket 12 whose base end is fixed to the hinge arm 8 and which projects away from the free end side of the lid 4, the hinge arm itself It is not necessary to greatly curve the shape of the lid 4 away from the free end side of the lid 4, and an increase in cost can be prevented. That is, the locking member 10
Alternatively, if the inner end of the coil spring 9 is directly connected to the hinge arm 8 and the connection position is set as described above, the hinge arm 8 must be curved greatly in the direction away from the free end of the lid 4. However, it is not possible to avoid the increase in size and cost. The present invention can prevent such problems.

Further, the outer end 9b of the spiral spring 9 may be directly hooked to the hinge pin 7, but if the outer end 9b of the spring 9 is engaged with a sleeve 11 rotatably fitted to the hinge pin 7 as in the illustrated embodiment, , when the spiral spring 9 rotates counterclockwise around the hinge pin 7 as shown by the chain line in FIG. 2 as the lid 4 is opened, the spring 9
Since the outer end 9b of the sleeve 11 does not come into direct frictional contact with the hinge pin 7 and the sleeve 11 rotates smoothly with respect to the hinge pin 7, it is possible to prevent abnormal noises from occurring when the spring rotates. This effect can be further enhanced by constructing the sleeve 11 from a low-friction material such as synthetic resin.

It goes without saying that the present invention can be applied not only to a hinge device for a trunk lid, but also to a hinge device for a hood in an engine room, for example.

Effects According to the present invention, it is possible to eliminate the risk of the spiral spring interfering with the vehicle body or the parts attached thereto, and moreover, it is possible to prevent or suppress interference between the spiral spring and the stored items when the lid is opened. Furthermore, it is possible to prevent the hinge arm from increasing in size, thereby preventing an increase in cost.

[Brief explanation of the drawing]

1 is a perspective view of the rear of the vehicle, FIG. 2 is a partial sectional view showing the hinge device for the trunk lid of the vehicle shown in FIG. 1 and its installation state, FIG. 3 is an exploded perspective view of the hinge device, and FIG. The figure shows the connected state of the bracket, the locking member, and the first link. 1... Vehicle body, 3, 3a... Hinge device, 4...
lid, 5...base, 7...hinge pin, 8...
...Hinge arm, 8a...One end side, 8b...Other end side, 9...Spiral spring, 9a...Inner end, 9b...Outer end, 10...Locking member, 11...
Sleeve, 12... Bracket, 13... First link, 14... Second link, P... Center of locking member.

Claims (1)

[Scope of utility model registration request] A base fixed to the vehicle body, a hinge arm with one end rotatably supported by the base via a hinge pin and the other end fixed to the lid, and a lock rotatably supported by a bracket fixed to the hinge arm. a first link whose one end side is connected to the locking member in a relatively non-rotatable manner; a second link whose free end side is pivotally connected to the other end side of the first link and whose proximal end side is pivotally connected to the base; a spiral spring whose inner end is locked to the locking member and whose outer end is hooked directly to the hinge pin of the hinge arm or to a sleeve fitted to the pin, and when the lid is closed, A proximal end portion of the bracket is fixed to a hinge arm portion below the hinge pin, and the bracket protrudes from the proximal end in a direction opposite to the free end side of the lid, and is supported on the distal end side thereof, and The center of the locking member to which the inner end of the spiral spring is locked is located below the center of the hinge pin, either directly below the center of the pin, or further away from the free end of the lid. A hinge device for a vehicle lid, characterized in that the hinges are arranged in a staggered manner.