JPH0339305Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a retractable headlamp for an automobile.

[Conventional technology]

Hereinafter, a conventional retractable headlamp will be explained with reference to FIGS. 5 and 6. In the figure, reference numeral 1 denotes a vehicle body mounting bracket fixed to the vehicle body (not shown) as a mounting body. and form
The upper part of the bottom plate part 10 is bent in the opposite direction to the bending direction of the side plate parts 11. Reference numeral 2 denotes a headlamp unit, which is housed and fixed within a cover 20. The left and right side walls 21 and 22 of the cover 20 of the headlamp unit 2 are rotatably attached to the left and right side plate portions 11 of the bracket 1 by pins 23. Reference numeral 3 denotes a motor as a drive unit installed in the vehicle body. This motor 3 is arranged on the side of the headlamp unit 2, and is connected to a battery (not shown) via a switch (not shown) in the driver's cab. )It is connected to the. 4 is a link mechanism interposed between the motor 3 and the headlamp unit 2, and this link mechanism 4 has one end fixed to the output shaft 30 of the motor 3, and the other end connected to the headlamp unit 2. It consists of a connect link 43 pivotally supported by a ball joint 42 on the side wall 21 of the cover 20 facing the motor 3, and the other end of the connect link 43 and the other end of the motor link 41 are pivotally connected by a ball joint 44.

Reference numeral 5 denotes a stopper mechanism for stopping the lighting position, which is interposed between the bracket 1 and the headlamp unit 2. This stopper mechanism 5 includes a stopper plate 50 fixed to the center of the bottom plate portion 10 of the bracket 1, and Rear wall 24 of cover 20 of unit 2
It consists of a stopper body 51 attached to the center of. The stopper plate 50 is formed by bending a plate to form a fixing part 500 fixed to the bracket 1 at one end and an abutting part 501 at the other end. Note that the headlamp unit 2 is provided with a notch (not shown) in the rear wall 24 of the cover 20, so that when the headlamp unit 2 rotates around the pin 23, the abutting part 501 of the stopper plate 50 gets in the way. It is configured so that it does not occur. On the other hand, the stopper body 5
1 is a screw rod 510 screwed into the screw hole 25 of the back wall 24 of the cover 20 of the headlamp unit 2.
and a contact portion 51 provided at the tip of the threaded rod 510.
1 and a lock nut 5 screwed into the screw rod 510
12, and the contact portion 511 of the stopper body 51
is configured so that it comes into contact with the contact portion 501 of the stopper plate 50 and stops. Note that by moving the screw rod 510 forward and backward, the headlamp unit 2
The lighting position, that is, the rotation angle to the lighting position can be adjusted.

The retractable headlamp has the above configuration, so to turn on the headlamp, operate the switch to drive the motor 3.
The headlamp unit 2 rotates clockwise from the storage position around the pin 23 to the lighting position,
The contact portion 511 of the stopper body 51 is the stopper plate 50
When the head lamp hits the contact portion 501 of the lamp, the motor 3 stops, the headlamp unit 2 stops at the lighting position, and the headlamp turns on.

Next, when storing the headlamp unit 2, operate the switch to drive the motor 3 in the opposite direction to the above, so that the headlamp unit 2 moves counterclockwise around the pin 23 from the lighting position to the storage position. When the headlamp unit 2 reaches the storage position, the motor 3 stops and the headlamp turns off.

[The problem that the idea aims to solve]

However, in the conventional retractable headlamp described above, the stopper mechanism is disposed approximately in the center of the headlamp unit, and the motor and link mechanism are disposed on the sides of the headlamp unit. Points of action (abutment portion 501 of stopper plate 50 and abutment portion 5 of stopper body 51)
11 and the center line ○-○ in the same direction as the rotational direction of the headlamp unit 2), and the output point of the motor 3 (the center line of the motor link 41 in the same direction as the rotational direction of the headlamp unit 2). Center line of direction ○′−
The distance W between the link mechanism 4, the output shaft 30 of the motor 3, and
In the cover 20 of the headlamp unit 2, etc., a large rotational torque is generated around the point of action of the stopper mechanism 5, causing twisting and deflection. Therefore, when the headlamp unit 2 is rotated to the lighting position, it is subject to repeated loads such as twisting and bending caused by the stopper mechanism 5, which may cause cracks in the linkage mechanism 4 and tilting of the headlamp unit 2. There is.

SUMMARY OF THE INVENTION An object of the present invention is to provide a retractable headlamp that can improve the problems of the prior art as described above and minimize the occurrence of defects such as cracks in the link mechanism and tilting of the headlamp unit.

[Means to solve the problem]

The present invention is characterized in that the connect link of the link mechanism and the contact portion of the stopper mechanism are disposed on the same axis in a direction perpendicular to the rotation axis of the headlamp unit.

[Effect]

In the present invention, as described above, the connect link of the link mechanism and the abutting part of the stopper mechanism are disposed on the same axis and in a direction perpendicular to the rotation axis of the headlamp unit. Distortion that occurs when the contact parts come into contact can be prevented, and the distance between the point of action of the stopper mechanism and the output point of the drive section is inevitably reduced, making it possible to rotate the headlamp unit to the lighting position. The rotational torque applied to the link mechanism and the like when the headlamp unit is rotated can be extremely small, thereby eliminating the risk of cracking the link mechanism or tilting the headlamp unit.

〔Example〕

Hereinafter, two examples of the retractable headlamp according to the present invention will be described with reference to FIGS. 1 to 4.

1 and 2 are a front view and a side view of a first embodiment of a retractable headlamp according to the present invention in a lit state. In the figure, the same reference numerals as in FIGS. 5 and 6 indicate the same parts.
The upper edge of the side plate 11 near the motor 3 of the left and right side plate portions 11 of the bracket 1 is inclined parallel to the back wall 24 of the cover 20 of the headlamp unit 2 in the lit state, so that the side plate of the bracket 1 near the motor 3 A stopper mechanism 5' is constituted by a stopper plate 50' fixed to the upper edge of the headlamp unit 11 and a stopper body 51' attached to a part of the rear wall 24 of the headlamp unit 2 near the motor 3. Connect link 43 of link mechanism 4, ball joints 42, 4
4 are arranged on the same axis when viewed from the front.

That is, the stopper body 51' includes a mounting plate 513' fixed to a portion of the rear wall 24 of the headlamp unit 2 near the motor, and a screw rod 510' screwed into a screw hole 514' provided in the mounting plate 513'.
and a contact portion 5 provided at the tip of the threaded rod 510'.
11' and a lock nut 512' screwed into a threaded rod 510', and the abutting portion 511' of the stopper body 51' abuts against the stopper body 50' fixed to the upper edge of the side plate 11 of the bracket 1 near the motor. The contact portion between the contact portion (not shown) of the stopper plate 50′ of the stopper mechanism 5′ and the contact portion 511′ of the stopper plate 51′, and the connect link of the link mechanism 4 43 are disposed on the same axis when viewed from the front, that is, in a direction perpendicular to the rotational axis of the headlamp unit 2 and on the same axis. Abutting portion 5 between the abutting portion and the stopper body 51'
11') can be prevented from being distorted. In addition, the action points of the stopper mechanism 5' (stopper plate 50' and stopper body 5')
1' and the center line ○-○ in the same direction as the rotating direction of the headlamp unit 2, and the output point of the motor 3 (motor link 4
The distance W between the rotating direction of the headlamp unit 2 of No. 1 and the center line ○'-○' in the same direction becomes extremely small as shown in FIG. The rotational torque generated around the point of action of the stopper mechanism 5' in the output shaft 30, the cover 20 of the headlamp unit 2, etc. can be reduced, and the occurrence of twisting and deflection can be suppressed as much as possible. Therefore, when the headlamp unit 2 is rotated to the lighting position, cracks in the linkage mechanism 4 and tilting of the headlamp unit 2 may occur due to repeated loads such as twisting and bending caused by the stopper mechanism 5'. can be prevented.

FIGS. 3 and 4 are a front view and a side view of a second embodiment of the retractable headlamp according to the present invention in a lit state.

In the figures, the same reference numerals as in FIGS. 1, 2, 5, and 6 indicate the same parts.

Contrary to the embodiments shown in FIGS. 1 and 2, the retractable headlamp of the present invention in this embodiment has a motor 3 and a link mechanism 4 brought close to a stopper mechanism 5 disposed in the center of a bracket 1. It was arranged as follows. A notch 12 is provided at the lower center of the bottom plate portion 10 of the bracket 1, and a connect link 43 of the link mechanism 4 is passed through the notch 12. In addition, the cover 20 of the headlamp unit 2
One end of a connect link 43 is pivotally supported by a ball joint 42 on a fixed plate 26 fixed therein. The retractable headlamp of the present invention in this embodiment is as follows:
Effects similar to those of the first embodiment described above can be achieved.

[Effect of idea]

As described above, in the retractable headlamp of the present invention, the connecting link of the link mechanism and the abutment part of the stopper mechanism are arranged in a direction perpendicular to the rotation axis of the headlamp unit and on the same axis. , it is possible to prevent distortion that occurs when the contact portion of the stopper mechanism contacts, and
When the distance between the point of action of the stopper mechanism and the output point of the drive section becomes shorter, the rotational torque generated in the link mechanism, etc., when the headlamp unit is rotated to the lighting position, is reduced around the point of action of the stopper mechanism. Therefore, it is possible to minimize the occurrence of defects such as cracks in the link mechanism and tilting of the headlamp unit.

[Brief explanation of the drawing]

1 and 2 are a front view and a side view of a first embodiment of a retractable headlamp according to the present invention in a lit state. FIGS. 3 and 4 are a front view and a side view of a second embodiment of the retractable headlamp according to the present invention in a lit state. FIGS. 5 and 6 are front and side views of a conventional retractable headlamp in a lit state. 1... Bracket, 2... Head lamp unit, 23... Pin, 3... Motor (drive section), 3
0... Output shaft, 4... Link mechanism, 43... Connect link, 5, 5'... Stopper mechanism, ○-○
...Stopper application point, ○'-○'...Driver output point.

Claims (1)

[Scope of utility model registration request] A mounting body, a headlamp unit attached to the mounting body so as to be rotatable between a storage position and a lighting position, a drive section equipped on the mounting body, and an intervening device between the drive section and the headlamp unit. a link mechanism consisting of a motor link and a connect link;
In the retractable headlamp, a stopper mechanism for stopping the lighting position is provided on the mounting body and the headlamp unit, respectively, and stops the headlamp unit in the lighting position by abutting each other, and the connecting link of the link mechanism and the stopper mechanism for stopping the lighting position are provided. A retractable headlamp characterized in that a contact portion of a stopper mechanism is disposed in a direction perpendicular to the rotational axis of the headlamp unit and on the same axis.