JPH0426269Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention uses a link mechanism to set the headlamp cover rotatably provided on the vehicle body to a shielding position where at least a portion of the headlamp is shielded, and the optical path of the headlamp. The present invention relates to an opening/closing device for an automobile headlamp cover that opens and closes between an open position and an open position.

(Prior art) In general, a headlamp cover opening/closing device that opens and closes a headlamp by rotating the headlamp cover using a link mechanism is used.
A device disclosed in the above publication is known. This opening/closing device has a shaft fixed to the hinge part of the headlamp cover member, which is rotatably installed through the hinge part of the engine hood member, and the end of a lever fixed to the shaft is used to turn on and off the lamp. It is characterized by being connected to a link lever mechanism that is rotated by a motor that rotates 180 degrees at a time.

(Problem to be solved by the invention) In such a headlamp cover opening/closing device, the headlamp cover member is rotated by the rotation of the motor in 180 degree increments, so the open position of the headlamp is not the upper limit position. It's summery. For this reason, even if you try to rotate the aiming screw installed above the headlamp in order to adjust the optical axis of the headlamp, this aiming screw is completely shielded by the headlamp cover and cannot be moved further upwards. Since it is impossible to rotate it, it cannot be rotated without removing the headlamp cover, resulting in extremely poor service performance.

This invention was devised in view of the above-mentioned problems, and the purpose of this invention is to greatly rotate the opening of the headlamp cover from the opening of opening the headlamp as necessary, so that the headlamp can be serviced. An object of the present invention is to provide an opening/closing device for a headlamp cover of an automobile whose performance can be improved.

(Means for Solving the Problems) In order to solve the above-mentioned problems and achieve the purpose, the opening/closing device for a headlamp cover of an automobile according to the present invention aims to move the headlamp cover from the opening/closing position to the upper part of the headlamp. further includes a rotation mechanism rotatably supported so as to open the link mechanism, the link mechanism includes a plurality of link members, and the rotation mechanism includes two link members adjacent to each other among the link members. It is characterized by a holding mechanism that is provided between the two link members and that can hold them at a predetermined angle and release the holding as necessary to make the two link members rotatable relative to each other.

According to one embodiment of the opening/closing device for an automobile headlamp cover according to this invention, the holding mechanism includes an opening formed in one link member and a link member that can be inserted into the opening of the other link member. A bending piece formed on the member and setting the two link members at a predetermined angle when inserted, and an urging force urging both link members so that the bending piece is inserted into the opening. It is characterized by comprising a member.

(Embodiment) An embodiment of the opening/closing device for an automobile headlamp cover according to the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1, a recess 14 for housing a headlamp 12 is formed on both sides of the front end surface of the front body 10. Inside this recess 14,
A headlamp 12 is housed so that its optical axis can be adjusted via an adjustment mechanism 16. The adjustment mechanism 16 includes an aiming screw 16a above the headlamp 12 for adjusting the optical axis of the headlamp 12 in the left-right direction. Although not shown, the adjustment mechanism 16 also includes a screw for adjusting the optical axis of the headlamp 12 in the vertical direction.

A headlamp cover 18 is provided above and in front of the headlamp 12 to cover the upper half of the headlamp 12 when the headlamp 12 is turned off, and to open the optical path of the headlamp 12 over the entire surface when the headlamp 12 is turned on. A hood 20 that releasably closes the upper part of an engine room (not shown) is connected above the headlamp cover 18. The headlamp cover 18 and the hood 20 are the headlamp cover 1
8 shields the upper half of the headlamp 12, and is set to be flush with the headlamp 12. In this way, the air resistance of the vehicle body is reduced and the aesthetic appearance of the vehicle body is improved when the vehicle runs with the headlights 12 turned off.

As described above, this headlamp cover 18 has a lower end located approximately in the middle of the headlamp 12, and a first position (indicated by a solid line) in which the upper half of the headlamp 12 is covered, and a lower end thereof located approximately in the middle of the headlamp 12. line l
The second position (indicated by a dashed line) is placed at the upper edge of the headlamp 12, opening the front surface of the headlamp 12 and opening the optical path over the entire surface, as shown in FIG. between a third position (indicated by a two-dot chain line) which is brought to the upper edge of the aiming screw 16a and allows the insertion of a driver (not shown) to rotate the aiming screw 16a. It is rotatably provided around a support shaft 22.

Next, such a headlamp cover 18 is driven to rotate between the first position and the second position, and after being brought to the second position, it is manually rotated to the third position. The opening/closing device 24 that allows movement will be explained with reference to FIGS. 2 to 5.

As shown in FIG. 2, the opening/closing device 24 includes a drive motor 26 and a link mechanism 28 that transmits the driving force of the drive motor 26 to the headlamp cover 18. This link mechanism 28 includes a drive link 30 whose one end is fixed to the drive shaft 26a of the drive motor 26, and a connection link 34 which rotatably connects the other end of this drive link 30 and the lower end of a counter link 32 to each other. It is equipped with This counter link 32 is provided at the upper part thereof, and is rotatably arranged via a support shaft 36 attached to the front body 10.

On the other hand, the link mechanism 28 includes a driven link 3 whose one end is fixed to the support shaft 22 of the headlamp cover 18.
8, and an operation link assembly 40 as a rotation mechanism that rotatably connects the other end of the driven link 38 and the upper end of the counter link 32 to each other.

This operation link assembly 40
The first operation link 42 has one end rotatably connected to the other end of the driven link 38, and the second operation link 42 is attached to form a predetermined angle (obtuse angle) with the first operation link 42. and an operation link 44. This second
One end of the operation link 44 and the upper end of the counter link 32 are rotatably connected.

More specifically, in this operation link assembly 40, as shown in FIG.
First and second operation links 42, 44
are rotatably supported at their other ends via support pins 46. Here, an opening 48 is formed near the other end of the first operation link 42, and a bent piece 50 that can be inserted into the opening 48 is formed at the other end edge of the second operation link 44. It is provided. Note that with this bent piece 50 inserted into the opening 48, the first and second operation links 42, 44 are held at a predetermined angle (obtuse angle), and in this way, the holding mechanism is configured.

Here, this operation link assembly 40 is configured such that the first and second operation links 42 and 44 maintain a predetermined angle (obtuse angle) and can release this holding as necessary. first and second operation links 42,
A biasing mechanism 5 that biases 44 into close contact with each other.
It is equipped with 2. This biasing mechanism 52 includes a washer 52b that is irremovably inserted into the tip of the support pin 46 via a stopper pin 52a, and a washer 52b that is irremovably inserted into the tip of the support pin 46.
is inserted into the middle part of the washer 52b, and one end is inserted into the washer 52b.
A compression coil spring 52c is provided, the other end of which engages the first operation link 42, respectively.

Due to the biasing force of this compression coil spring 52c, the first and second operation links 42,
44 are brought into close contact with each other, and the bent piece 50 is maintained inserted into the opening 48, and in this way the first and second operation links 42, 44 are
are integrated at a predetermined angle (obtuse angle). In addition, by resisting the biasing force of the compression coil spring 52c and pulling the bent piece 50 out of the opening 48, the first and second operation links 42 and 44 are separated. The operation links 42 and 44 are rotatable about the support pin 46.

Headlamp cover 1 configured as above
The operation of the opening/closing device 24 of No. 8 will be explained below.

When the headlamp 12 is turned off, the headlamp cover 18 is brought to the first position, as shown in FIG. 2, and the upper half of the headlamp 12 is covered by the headlamp cover 18. In addition, operation link assembly 40
the first and second operation links 42, 4 of
4, as shown in FIG.
8 and is held so as to form a predetermined angle (obtuse angle).

From this state, in response to the headlamp 12 being turned on, the drive motor 26 is activated, and the drive shaft 26a, that is, the drive link 30, is rotated 180 degrees from the position shown in FIG. This 180 degree rotation of the drive link 30 is transmitted to the counter link 32 via the connecting link 34, and therefore the counter link 32 rotates counterclockwise about the support shaft 36 as shown in FIG. do. This counterclockwise rotation of the counter link 32 is caused by the operation link assembly 40 and the driven link 38.
, and the headlamp cover 18 is rotated clockwise about the support shaft 22 to be brought to the second position.

In this way, as the headlamp 12 is turned on, the headlamp cover 18 is brought to the second position, the optical path of the headlamp 12 is opened over the entire surface, and the front of the car is well illuminated by the headlamp 12. It turns out.

Incidentally, when the headlamp 12 is turned off from this lighting state, the drive motor 26 is started again, and the drive shaft 26a is further rotated by 180 degrees. In this way, the counter link 32 rotates clockwise about the support shaft 36, and the headlamp cover 18 accordingly rotates counterclockwise to the first position as shown in FIG. Will be reinstated.

On the other hand, as shown in FIG. 4, when the aiming screw 16a is rotated and adjusted by a driver in order to adjust the optical axis of the headlamp 12 with the headlamp cover 18 in the second position, , manually operated as follows.

That is, the operation link assembly 40
the first and second operation links 42, 4 of
4 are separated from each other against the biasing force of the compression coil spring 52c, the bent piece 50 is pulled out from the opening 48, and the first and second operation links 4 are removed.
2 and 44 are made rotatable relative to each other, and the first and second operation links 42 and 44 are connected to the fifth
Rotate in a straight line as shown in the figure.
By forming them in a straight line in this way, the effective length L of the first and second operation links 42 and 44 is
2 and 44 form a predetermined angle (obtuse angle).

In this way, by aligning the first and second operation links 42 and 44, the driven link 38 further rotates clockwise from the state shown in FIG. 4, and as shown in FIG. Then, the headlamp cover 18 is brought from the second position to the third position. Therefore, the aiming screw 16a for adjusting the optical axis of the headlamp 12 can be rotated and adjusted by inserting a screwdriver through the space formed between the headlamp cover 18 and the headlamp 12. It becomes like this.

Note that the first and second operation links 4
2 and 44 are biased by the compression coil spring 52c so as to be in close contact with each other in a straight line state, so that this straight line posture is maintained well.

Further, when returning the headlamp cover 18 from the third position to the second position, it is sufficient to simply push down the headlamp cover 18 by hand, and with the headlamp cover 18 returned to the second position, Bent piece 5 of second operation link 44
0 is the opening 48 of the first operation link 42
The first and second operation links 42 and 44 are fixed at a predetermined angle (obtuse angle).
The headlamp cover 18 will therefore automatically stop in this second position.

As detailed above, according to this embodiment,
The headlamp cover 18 can be automatically opened and closed by the drive motor 26 when the headlamp 12 is turned on or off, and when it becomes necessary to adjust the optical axis of the headlamp 12, the operation link assembly 40 The holding of the first and second operation links 42, 44 is released, and the first and second operation links 42, 44 are rotated into a straight line so as to increase their effective lengths. By this, the headlamp cover 1
8 can be further rotated from the second position (open position) to open the upper part of the headlamp 12. In this way, headlamp 1
For example, the adjustment of the optical axis of the head lamp cover 1
8 and without opening the hood 20, service performance is improved.

Further, according to this embodiment, the head lamp 1
2, when the headlamp cover 18 is turned off, the headlamp cover 18 is lowered to the first position to shield the upper half of the headlamp 12, and the headlamp cover 18 and the hood 20 in the first position are flush with each other. Since this setting is made, it is possible to reduce the air resistance of the vehicle body, and it is also possible to improve the aesthetic appearance of the front portion of the vehicle body.

Further, according to this embodiment, the drive motor 26
Since only a motor that rotates in one direction is sufficient, the cost can be reduced.

Note that this invention is not limited to the configuration of the one embodiment described above, and can be modified in various ways without departing from the gist of this invention.

For example, in one embodiment described above, the first and second
A bent piece 50 serves as a holding mechanism for holding the operation links 42 and 44 at a predetermined angle (obtuse angle).
Although the explanation has been made to use the openings 48 and 48, the present invention is not limited thereto. For example, friction plates may be attached to the joint surfaces of the first and second operation links 42 and 44 to The first and second operation links 42 and 44 may be held at a predetermined angle (obtuse angle) by pressure contact between the plates by compression coil springs.

(Effects of the invention) As described in detail above, the opening/closing device for a headlamp cover of an automobile according to the invention uses a link mechanism to open and close at least a portion of the headlamp cover, which is rotatably provided on the vehicle body. In an automobile headlamp cover opening/closing device that opens and closes between a shielding position for shielding and an open position for opening the optical path of the headlamp, the headlamp cover is further rotated from the open position to open the upper part of the headlamp. The link mechanism includes a freely supported rotation mechanism, the link mechanism includes a plurality of link members, and the rotation mechanism is provided between two adjacent link members among the link members,
It is characterized by having a holding mechanism that can hold these at a predetermined angle and release the holding as necessary to make the two link members rotatable relative to each other. Therefore, according to this invention, the opening degree of the headlamp cover can be adjusted as necessary.
To provide an opening/closing device for a headlamp cover of an automobile that can improve the service performance of the headlamp by rotating the headlamp largely from its opening position.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing the rotating state of a headlamp cover opened and closed by an embodiment of the opening/closing device for an automobile headlamp cover according to this invention;
The diagram shows the configuration of the opening/closing device, with the headlamp cover being the first.
Figure 3 is a sectional view showing the configuration of the operation link assembly; Figure 4 is a side view showing the configuration of the opening/closing device with the headlamp cover in the second position. FIG. 5 is a side view showing the configuration of the opening/closing device with the headlamp cover in the third position. In the figure, 10...front body, 12...head lamp, 14...recess, 16...optical axis adjustment mechanism, 16a...aiming screw, 18...
Headlamp cover, 20...Hood, 22...
Support shaft, 24...Switching device, 26...Drive motor,
26a... Drive shaft, 28... Link mechanism, 30...
... Drive link, 32 ... Counter link, 34
... Connection link, 36 ... Support shaft, 38 ... Driven link, 40 ... Operation link assembly, 42 ... First operation link, 44
...Second operation link, 46...Support pin, 48...Opening, 50...Bend piece, 52...
Biasing mechanism, 52a... stop pin, 52b... washer, 52c... compression coil spring.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A headlamp cover that is rotatably provided on the vehicle body can be moved by a link mechanism to a shielding position where at least a part of the headlamp is shielded and an open position where the optical path of the headlamp is opened. An opening/closing device for a headlamp cover of an automobile that is operated between the opening and closing positions, further comprising a rotation mechanism rotatably supporting the headlamp cover so as to open the upper part of the headlamp from the opening/closing position, and the link mechanism comprising a plurality of link members, the rotation mechanism is provided between two adjacent link members among these link members,
A headlamp cover for an automobile characterized by having a holding mechanism capable of holding these at a predetermined angle and releasing the holding as necessary to make the two link members rotatable relative to each other. Switchgear. (2) The holding mechanism is formed in an opening formed in one link member and in the other link member so as to be insertable into the opening, and sets the two link members at a predetermined angle in the inserted state. A utility model according to claim 1, characterized in that it comprises a bent piece and an urging member that urges both link members so that the bent piece is inserted into the opening. Automobile headlamp cover opening/closing device.