JPH03255B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel headlamp device with a lamp cover, and more particularly, to a headlamp in which a lamp cover for protecting a lens of the headlamp can be opened and closed by remote control. , a novel headlight device with a lamp cover, in which the headlight is turned on only when the lamp cover is opened, and moreover, the opening and closing of the lamp cover and the turning on and off of the headlight can be performed by a single switch. This is what we are trying to provide.

BACKGROUND ART If there is nothing to protect the lens of a headlamp, especially an auxiliary headlamp such as a fog lamp, the lens will always be exposed to the outside, and there is a risk that the lens will get dirty or damaged. be. Therefore, it was necessary to take some measure to protect the lens, not only when the auxiliary headlight is on, but also when it is not on. Previously, a removable lamp cover had to be placed over the lens by hand. However, this was very troublesome, so a lamp cover was invented that allowed the lamp cover to be opened and closed indoors. That is, a driving device such as a motor is built into the lamp body of the auxiliary headlamp, and the lamp cover is opened and closed relative to the lens as the motor rotates.

Problems to be Solved by the Invention However, when a motor etc. is built into the lamp body of an auxiliary headlamp, it is difficult to know how to rotate the motor in the forward and reverse directions in order to open and close the lamp cover. Regarding the issue of whether the drive of the motor etc. can be reliably stopped when the lamp cover is opened or closed, and the issue that the auxiliary headlight may be turned on even when the lamp cover is closed. It was not resolved at all.

Means for Solving the Problems The present invention aims to solve the various problems in the headlamp device as described above, and includes a headlamp, a lamp cover for opening and closing the front of the headlamp, and a lamp cover for opening and closing the front of the headlamp. The controller consists of a drive unit that opens and closes the headlight, and a control unit that controls the lighting of the headlight and the drive of the drive unit.The control unit detects the ON/OFF state of the external switch and starts the motor of the drive unit, and A terminal that rotates in conjunction with the opening/closing operation of the cover and a pair of fixed band-shaped conductors that are in sliding contact with the terminal energize the motor until the end of the opening or closing operation of the lamp cover. The headlamp is characterized in that the headlamp is turned on when the lamp cover is opened by a pressing piece for turning on and off the headlamp switch which rotates in accordance with the rotational movement.

Embodiments Hereinafter, details of a headlamp device with a lamp cover according to the present invention will be described in accordance with embodiments shown in the accompanying drawings.

In the figure, reference numeral 1 denotes a lamp body, which has a substantially rectangular opening at the front and a closed shape at the other portions. Reference numeral 2 denotes a lens whose square shape is substantially rectangular, and a reflector 3 is attached to the rear surface of the lens by appropriate means. Reference numerals 4 and 4 denote brackets fixed to the reflector 3, and are used to attach the reflector 3 to which the lens 2 is attached to the lamp body 1. The brackets 4, 4 are approximately U-shaped, and their tips are fixed to the upper and lower surfaces of the reflector 3 by welding or the like. To attach the lens 2 and reflector 3 to the lamp body 1, screws 6, 6 are inserted from the rear of the lamp body 1 into the screw insertion holes 5, 5 made on the rear surface of the lamp body 1, and This is done by being screwed into a screw hole (not shown) drilled in the lens 2, and a rim is interposed between the lens 2 and the lamp body 1.

8 is a lamp cover opening/closing device disposed on one side wall of the lamp body 1, and 9 is a click mechanism disposed on the other side wall of the lamp body 1.

A rotating shaft 10a having a rectangular cross-section and passing through the side wall of the lamp body 1 projects from the side wall of the lamp body 1 of the lamp cover opening/closing device 8. Further, a rotation shaft 10b passing through the side wall of the lamp body 1 projects from the side wall of the lamp body 1 of the click mechanism 9.

Reference numeral 11 denotes a lamp cover, which is rotated toward the top surface of the lamp body 1 so as to cover the lens 2 when the headlight is turned off, and not to block the irradiation when the headlight is turned on. The cover 11 includes a cover portion 11a for covering the lens 2 and the rotating shafts 10a, 1 protruding from both side walls of the lamp body 1.
0b, and a rotating shaft 10 is attached to the side parts 11b, 11b.
Engagement recesses 12, 12 are formed with rectangular openings for engagement of the engagement recesses 12, 10b.

The lamp cover 11 is rotated by rotating shafts 10a, 1.
0b, and is caused to open and close as the rotation shafts 10a and 10b rotate. This opening/closing movement of the lamp cover 11 is performed between the position where the cover portion 11a faces the top surface of the lamp body 1 and the position where it faces the front surface of the lens 2, so the rotation angle is within a range of approximately 90°. It is done.

Further, the click mechanism 9 has a click point at approximately half of the rotation of the lamp cover 11 within a range of approximately 90 degrees, that is, at a position where the lamp cover 11 is rotated by an angle of approximately 45 degrees. Further, an appropriate stopper piece is provided so that the rotation range of the rotation shaft 10b does not exceed 90 degrees.

The lamp cover opening/closing device 8 includes a drive section 13 , a circuit board 15 held and fixed to a case 14 , and a cover 16 that covers the drive section 13 , the case 14 , and the circuit board 15 .

The drive unit 13 includes a relay described later in the housing 13a.
A system of a motor 17 and transmission gears 18, 18, .
8, 18, ... the housing 13 of the drive unit 13 via the system
The signal is transmitted to the output shaft 19 that passes through a and projects.
A member having a rectangular cross section is fitted to one end of the output shaft 19, and this member serves as the rotation shaft 10a, and the other end is integrated with the drive unit 13 and the circuit board 15 via the case 14. It is adapted to be fitted and connected to a pressing piece 20 for turning on and off the switch SW1 disposed on the circuit board 15 when the switch SW1 is turned on and off.

The case 14 has a thin box shape with an opening on one side, and a rectangular circuit board 15 is fitted into the opening. The boss portions 21, 21, which define the height so as not to be fitted up to
is formed. A lighting switch SW1 for the headlight HL and a switch SW2 for controlling the drive of the motor 17 are arranged on the surface of the circuit board 15 facing the case 14, and a relay RL is arranged on the surface opposite to the case 14. has been done.

Then, the drive unit 13, the case 14, and the circuit board 15
When assembling, screws 23, 23, . . . are inserted into the screw insertion holes 24, 24, . , 21, . . . and screwed into the screw holes 22, 22, . It is done by this. At this time, the output shaft 19 is inserted into the shaft insertion hole 26 provided in the case 14, and connected to the pressing piece 20 of the switch part provided in the circuit board 15.
As the output shaft 19 rotates, the pressing piece 20 rotates relative to the circuit board 15, and at the same time, the rotation shaft 1, which is fitted and connected to the end of the output shaft 19 on the side opposite to the circuit board 15, rotates.
0a will also be rotated.

Then, the drive unit 13, the case 14, and the circuit board 15
After being assembled, these three members 13, 14, and 15 are covered with a cover 16 from the circuit board 15 side, and the lamp cover opening/closing device 8 is constructed.

Next, the configuration of the circuit board 15 will be explained in detail.

The pressing piece 20 has a rotation shaft portion 27 at one end thereof, which serves as a rotation fulcrum. The rotation shaft portion 27 is integrally formed to protrude from one side of the pressing piece 20, and has a screw hole 28 opening at its tip surface. 29
is a rectangular fitting hole which is opened on the side opposite to the side on which the rotation shaft portion 27 of the pressing piece 20 is formed, and the fitting hole 29 and the threaded hole 28 are aligned with their respective central axes. are located on the same straight line.
The rotating shaft portion 27 of the pressing piece 20 is rotatably fitted into the receiving hole 31 of the circuit board 15 with a conductive washer 30 fitted onto the base thereof. 32 is a metal plate interposed between the circuit board 15 and the washer 30 and attached to the circuit board 15;
has substantially the same shape as the washer 30, and the circuit board 15
Projecting pieces 32a, 32a projecting to the opposite case side 14 of
have. The projecting pieces 32a, 32a are connected to a cord leading to the anode of the power source on the side of the circuit board 15 opposite to the case 14. 33 is a screw for holding the pressing piece 20, and when it is passed through the washer 34, the tip end is inserted into the screw hole 28 of the rotation shaft portion 27.
The washer 34 and the circuit board 15 are screwed together.
A coil spring 35 is connected to the rotation shaft portion 27 between
The coil spring 35 biases the pressing piece 20 in a direction that brings the pressing piece 20 into close contact with the circuit board 15. Reference numeral 36 denotes a washer which is interposed between the circuit board 15 and the coil spring 35 while being fitted onto the portion of the rotation shaft 27 protruding from the receiving hole 31. Direct contact is avoided.

Then, as the output shaft 19 rotates, the pressing piece 20 changes from the state A (the state shown in FIG. 5) in which the switch SW1 is turned OFF, to the state A (the state shown in FIG.
It is rotated within a range of about 90 degrees between state B (state shown in FIG. 7) in which the switch 1 is turned on.

The switch SW1 is a switch for controlling turning on or off of the headlight HL, and includes a power side contact piece 37a with one end being a fixed end and the other end being a free end, and a ground side contact piece fixed to the circuit board 15. The power supply side contact piece 37a is composed of the output shaft 19 and the power supply side contact piece 37a.
As the output shaft 19 rotates, the circuit board 15
The ground side contact piece 37b is pressed by the tip of the press piece 20 which rotates within a range of approximately 90 degrees relative to the earth side contact piece 37b.
It is now possible to turn on the headlights HL by making contact with the vehicle.

The switch SW2 is a switch for controlling the drive of the motor 17, and is composed of a rotating contact piece 38 and fixed contact pieces 39a and 39b. Rotating contact piece 38
is an electrically conductive and elastic material whose intermediate portion 38a is approximately rectangular when viewed from above, whose both ends 38b are triangular, and which is mountain-shaped when viewed from the front with the intermediate portion 38a as the top. A contact portion 40a, which is constructed of a metal plate having a
It is said to be 40b. And the rotating contact piece 38
At the intermediate portion 38a, both contact portions 40 of the rotary contact piece 38 are placed at the pivot point of the pressing piece 20.
The rotary contact piece 38 is fixed by appropriate means so that the line connecting a and 40b and the line connecting the rotation fulcrum and the rotation tip of the pressing piece 20 are perpendicular to each other, and the rotating contact piece 38 is attached to the intermediate portion 38a. It has a connecting piece 38c extending from the base along the base end surface of the pressing piece 20, and the connecting piece 38c
The tip of c is electrically connected to the washer 30 fitted onto the rotating shaft portion 27 of the pressing piece 20.
Incidentally, it is preferable to form the washer 30 and the rotary contact piece 38 integrally, since this reduces the number of parts.

Therefore, the rotary contact piece 38 is rotated within a movement angle of 90° as the pressing piece 20 is rotated. The fixed contact pieces 39a and 39b are composed of metal plates stuck to the circuit board 15, and the rotating contact pieces 38
contact portions 40a, 40b, respectively, and the contact portions 40a, 40b contact fixed contact pieces 39a, 39, respectively.
b It has an arc shape so that it can slide on it.
Then, at the starting point at which the pressing piece 20 that rotates in a substantially perpendicular range begins to rotate, for example, in state A, one fixed contact piece 39a and one contact portion 40a of the rotating contact piece 38 are brought into contact, and the other Fixed contact piece 39
b and the contact portion 40b of the rotating contact piece 38 are not in contact with each other, and when the pressing piece 20 rotates approximately at right angles, that is, at the end of the rotation, for example, in state B, they are in contact in state A. Contact part 40
a and the fixed contact piece 39a are placed in a separated state,
On the contrary, the fixed contact piece 39a and the fixed contact piece 39b are located at substantially point-symmetrical positions around the pivot point so that the fixed contact piece 39b and the contact portion 40b, which were separated at the starting point, are in contact with each other. It is arranged like this.

Therefore, switch SW1 installed on the circuit board
When the switch SW2 is in state A, the lamp cover is engaged with the rotating shafts 10a and 10b so as to cover the lens 2, and the rotating shaft 10a is rotated to a movement angle of approximately 90°. The lamp cover is moved above the lamp body 1, and when the state on the circuit board reaches B, its rotation is stopped.

6 and 8 are diagrams showing circuits for controlling opening/closing of the lamp cover 1 and lighting of the headlight HL. FIG. 6 shows the state A, and FIG. 8 shows the state B. It shows.

The switch SW3 is a switch for turning on the headlight HL and opening/closing the lamp cover, and is arranged in the driver's cab. Relay RL is for determining forward/reverse rotation of motor 17, and has two switching parts 41 and 42.
43 and 44 are movable contacts of the relay RL. The movable contact 43 is connected to a common terminal CT ₁ connected to the forward rotation side input terminal 45 of the motor 17, and the movable contact 44 is connected to the common terminal CT ₂ connected to the reverse rotation side input terminal 46 of the motor 17. There is.
When the relay RL is de-energized, the movable contact 43 is in contact with the ground side terminal BT ₁ and the movable contact 44 is in contact with the power supply side terminal BT ₂ connected to the fixed contact piece 39b. When excited,
The movable contact 43 is connected to the power supply side terminal MT ₁ connected to the fixed contact piece 39a, and the movable contact 44 is connected to the ground side terminal.
Contacted by MT ₂ . And the ground terminal
Both BT ₁ and MT ₂ are grounded.

The switch SW2 is disposed on the circuit board 15 as described above, and the fixed and rotating contact piece 38 is connected to the positive side of the power supply.

When switch SW3 is turned on in state A, relay RL is energized and switching section 41,
42 movable contacts 43 and 44 are made to move, and in the switching part 41, the common terminal CT ₁ and the power supply side terminal MT ₁ are connected, and in the switching part 42, the common terminal CT ₁ and the grounding side terminal MT ₂ are connected. is connected. Then, the current flows from the power supply anode → rotating contact piece 38 →
Fixed contact piece 39a → Power side terminal MT ₁ → Movable contact 43 → Common contact CT ₁ → Forward rotation side input terminal 45 → Motor 17 → Reverse rotation side input terminal 46 → Common contact CT ₂ → Movable contact 44 → Earth side terminal MT ₂ → grounding route,
The motor 17 is rotated in the forward direction. At this time, the rotation of the motor 17 is controlled by the drive unit 1 as described above.
The output shaft 19 of No. 3 is rotated, and the output shaft 19 is rotated so as to open the lamp cover 11.
Moreover, the pressing piece 20 and the rotary contact piece 38 are rotated together. Then, when the pressing piece 20 is rotated a little closer than 90 degrees, the headlight HL switch SW1 is turned on.
is turned on to turn on the headlight HL, the rotating contact piece 38 rotates until its movement angle reaches approximately 90 degrees, and when the rotating contact piece 38 is rotated approximately 90 degrees, it comes into fixed contact with the contact portion 40a. It is separated from the piece 39a. When the contact part 40a and the fixed contact piece 39a are separated, the current will no longer flow to the power supply side terminal MT ₁ of the switching part 41, and therefore the forward rotation of the motor 17 will be stopped, and the rotating contact piece 38 and the pressing The rotation of the piece 20 is also stopped. That is, it is placed in state B.

Next, when the switch SW3 is turned OFF in state B, the relay RL is first de-energized, and the respective movable contacts 43 and 4 are activated in the switching parts 41 and 42.
4 contacts the ground side terminal BT ₁ and the power side terminal BT ₂ , respectively. And the current is from the power supply anode to the rotating contact piece 38
→ Fixed contact 39b → Power side terminal BT ₂ → Movable contact 44 → Common ballistic terminal CT ₁ → Reverse rotation side input terminal 46 → Motor 17 → Forward rotation side input terminal 45 → Common terminal CT ₁ →
Flows through the path of earth side terminal BT ₁ → ground,
Motor 17 is rotated in reverse. When the motor 17 is reversely rotated, the lamp cover 11, the pressing piece 20, and the rotating contact piece 38 are rotated, and the lamp cover 11 is rotated.
is closed to cover the lens 2, the pressing piece 20 turns off the switch SW1, and the rotary contact piece 38 is rotated until its contact portion 40b separates from the fixed contact piece 39b. Then, the state returns to state A again, and the reverse rotation of the motor 17 is stopped.

Effects of the Invention As is clear from the above description, the headlamp with a lamp cover of the present invention comprises a headlamp, a lamp cover that opens and closes the front of the headlamp, a drive unit that opens and closes the lamp cover, and a front It consists of a control section that controls the lighting of the lamp and the driving of the drive section.The control section detects the ON/OFF state of the external switch, starts the motor of the drive section, and rotates in conjunction with the opening/closing operation of the lamp cover. The motor is energized by the moving terminal and a pair of fixed band-shaped conductors that are in sliding contact with the terminal until the opening or closing operation of the lamp cover is completed, and the motor is rotated in accordance with the rotational movement of the terminal. The invention is characterized in that the headlight is turned on when the lamp cover is opened by means of a pressing piece for turning on and off the moving headlight switch.
By simply switching two switches, you can open and close the lamp cover and turn on the headlights, and also ensure that the opening and closing operations of the lamp cover end at a certain position. Since it is designed to turn on when the lamp cover is opened, there is no risk of accidentally turning on the headlight when the lamp cover is closed, and there is also no possibility that the headlight will turn on when the lamp cover is closed. However, there is no risk of the lamp cover being left open.

[Brief explanation of the drawing]

1 to 8 show an example of the embodiment of the headlamp device with a lamp cover of the present invention, FIG. 1 is an exploded perspective view of the whole, and FIG. 2 is an exploded perspective view of the lamp cover opening/closing device. The figure is an exploded plan view showing the positional relationship between the lamp cover, drive unit, and circuit board. Figure 4 is a sectional view showing the main parts of the circuit board. Figure 5 is the case side of the circuit board when the lamp cover is closed. A plan view showing
Figure 6 is a circuit diagram when the lamp cover is closed, Figure 7 is a plan view showing the case side of the circuit board when the lamp cover is open, and Figure 8 is the circuit diagram when the lamp cover is open. Figure. Explanation of symbols, HL...Headlight, 11...Lamp cover, 13...Drive unit, 15...Control unit, SW
1... Headlight switch, SW3... External switch, 17... Motor, 20... Pressing piece, 39a,
39b...Strip conductor, 40a, 40b...Terminal.

Claims (1)

[Scope of Claims] 1. A headlight, a lamp cover that opens and closes the front surface of the headlight, a drive section that opens and closes the lamp cover, and a control section that controls lighting of the headlight and driving of the drive section. The control unit detects ON/OFF of the external switch and starts the motor of the drive unit, and a terminal that rotates in conjunction with the opening/closing operation of the lamp cover and a pair of fixed terminals that slide into contact with the terminal. The strip conductor energizes the motor until the end of the opening or closing operation of the lamp cover, and the press is used to turn on and off the headlight switch, which rotates in accordance with the rotation of the terminal. A headlamp device with a lamp cover, characterized in that the headlamp is turned on by a piece when the lamp cover is opened.