JPS633340Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automobile trunk lid opening/closing device.

2. Description of the Related Art Conventionally, as shown in FIGS. 1 and 4, there is a type of device for opening and closing a trunk lid that uses the torsional force of a torsion bar a to open a trunk lid b. That is, trunk lid b is pivoted to bracket d in trunk e via hinge arm c, one end of torsion bar a engages with hinge arm c, and the other end engages with bracket d on the opposite side. This hinge arm c always applies a twisting force to fully open the trunk lid b. Further, as shown in FIG. 5, the bracket d is provided with a guide groove f through which the torsion bar a is inserted, and the torsion bar a moves within the guide groove f in response to opening and closing of the trunk lid b.

With this type of opening/closing device, the trunk lid b fully opens instantaneously after being unlocked by operating the vehicle inside the vehicle, as shown in Figure 2. This results in a shock when the trunk lid is fully opened, a feeling of anxiety due to the impact sound, and a feeling of anxiety when the trunk lid is opened in the rain or outdoors. There is a risk of water intrusion into the trunk room after the above-mentioned operation is unlocked.

The present invention is to prevent the trunk lid from fully opening instantly after being unlocked in this trunk lid opening/closing device.

The present invention allows the trunk lid to be opened slightly after being unlocked, and then fully opened by hand.

To describe this invention that achieves the above object, the hinge arms provided on the left and right sides of the trunk lid are each pivoted on brackets on both sides of the vehicle body, the hinge arms are made to intersect with each other, and the crossing portions are tied together. In a trunk lid opening/closing device in which one end of each of two torsion bars is engaged, the other end of the torsion bar is loosely engaged with the other bracket, and guide grooves for the torsion bars are provided in both brackets, each guide groove is This is a trunk lid opening/closing device for an automobile, which is provided with protrusions at each midpoint in the length direction.

This invention will be described in detail below with reference to embodiments shown in the accompanying drawings.

In FIGS. 3, 6, and 7, reference numeral 1 denotes a bracket to be installed in the trunk. A hinge arm 2 is rotatably attached to the upper part of the bracket 1 with a pin 3, and the other end of the hinge arm 2 is It is connected to trunk lid 4. Reference numeral 5 denotes a torsion bar, one end 11 of which is bent into an L-shape and fits into an engagement hole 6 of the hinge arm 2, and the other end 12 engages with an engagement hole 7 provided in the bracket 1. The two torsion bars 5, 5 are bound at the center by a flexible pipe 8, each inserted through an arcuate guide groove 9 provided in the bracket 1, engaged with the hinge arm 2, and always connected to the hinge arm. 2 is applied with a torsional force that rotates it in the direction of arrow A2.

The guide groove 9 is provided with a protrusion 10 to prevent the torsion bar 5 from moving all at once from position 5a when the trunk lid 4 is closed to position 5c when the trunk lid 4 is fully open. There is. That is, first, when unlocking, the torsion bar 5 moves from the position 5a to the protrusion 10.
It stops at the position 5b where it comes into contact with the side surface 10a. In this state, as shown in FIG. 3, the torsion bar 5 opens the trunk lid 4 from the closed position 4a to the half-open position 4b.Afterwards, if the trunk lid 4 is opened by hand to the fully open position 4c, The torsion bar 5 rides on the protrusion 10 from the position 5b and moves to the fully open position 5c. This can be accomplished by bending the torsion bar 5 itself and by making the engagement hole 6 that engages one end 11 of the torsion bar 5 into a blank hole.

As explained above, the present invention provides a guide groove 9 on the bracket and a protrusion on the guide groove 9, so that the trunk lid does not fully open when unlocking, but is in a half-open state, and then is fully opened by hand. motion becomes possible. Therefore, the impact when fully opened,
Rainwater will not enter the trunk room during rainy weather.

Further, each of the torsion bars 5 is formed into an elongated, substantially linear shape, so that the torsion bars 5 can be easily bent. Additionally, the torsion bar 5 has an engaging portion with the hinge arm 2,
The binding portion and the engaging portion with the bracket 1 form a lever shape. Therefore, a relatively large force can be applied to the torsion bar 5 by opening and closing the trunk lid.

Furthermore, by loosely engaging the torsion bar 5 and the bracket 1, ie, for these three reasons, the torsion bar 5 can easily ride over the protrusion 10. Therefore, opening and closing by hand after a temporary stop can be performed extremely easily by simply applying force in the same direction.

Furthermore, the device of this invention has a simple structure and can be manufactured very easily.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view showing the state when the trunk lid is fully opened, Fig. 2 is a diagram showing the conventional trunk lid in the open/closed state, Fig. 3 is a diagram showing the trunk lid of the present invention in the open/closed state, and Fig. 4 is a diagram showing the trunk lid in the open/closed state. FIG. 5 is a perspective view showing a conventional trunk lid opening/closing device, FIG. 5 is a view showing the guide groove and torsion bar shown in FIG. 4, FIG. 6 is a perspective view showing an embodiment of the present invention, and FIG. FIG. 1...bracket, 2...hinge arm, 4...
...Trunk lid, 5...Torsion bar, 9...
...Guide groove, 10...Protrusion.

Claims (1)

[Scope of utility model registration request] Hinge arms provided on the left and right sides of the trunk lid are respectively pivotally supported by brackets on both sides of the vehicle body, and each hinge arm is engaged with one end of each of two torsion bars that cross each other and have their crossing portions tied together,
In a trunk lid opening/closing device in which the other end of the torsion bar is loosely engaged with the other bracket, and guide grooves for the torsion bar are provided in both brackets, a protrusion is provided in the middle of each guide groove in the length direction. Automobile trunk lid opening/closing device.