JPH086332Y2 - Vehicle floodlight - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a floodlight suitable for use in various vehicles such as police vehicles and fire fighting vehicles.

[Conventional technology]

Generally, this type of floodlight is used for verification and certification of the site, so that it can be attached to the top (roof) of a vehicle so that light can be emitted in a desired direction. It is configured. That is, a conventional floodlight of this type is configured such that a plurality of lamps are housed in one case to obtain a required illuminance and all or selected lamps are lit according to the required illuminance. are doing. Also,
The projector is supported on the vehicle by using a mechanism that can be tilted vertically and horizontally, and by controlling the tilting mechanism to change the direction of the projector, the direction of light projection can be directed to a desired direction.

[Problems to be Solved by the Invention] However, in the above-described conventional projector, the plurality of lamps housed in the case are attached to the case with their optical axes set so as to face the same direction. . For this reason, the projection angle, that is, the upper and lower and left and right ranges of light irradiation is a range in which the projection angles of all the lamps are combined. It will be decided uniquely by the above.

Therefore, the light irradiation range cannot be adjusted according to the purpose of use of the projector. For example, when there is a request to irradiate a wide range at the time of verification by using it for a fire engine vehicle, while there is a request to irradiate a limited range at high illuminance when using it for a police vehicle, etc. In, it is impossible to adjust the light irradiation range corresponding to these. Therefore, conventionally, it is necessary to set the light irradiation range by moving the vehicle forward with respect to the object or avoiding the distance, and there is a problem that the adjustment of the light irradiation range becomes extremely troublesome.

Further, in the conventional floodlight, a mechanism for changing the optical axis in the left-right direction and the vertical direction is provided to change the optical axis direction, but since the mechanism for the left-right direction and the mechanism for the vertical direction are individually provided. In addition, there is a problem that the entire projector becomes large and the structure becomes complicated.

An object of the present invention is to provide a vehicle floodlight that enables adjustment of the light irradiation range and simplifies the structure to reduce the size.

[Means for solving the problem]

The vehicle floodlight according to the present invention includes a case mounted on a vehicle and having a front surface formed of a lens, a plurality of lamp main bodies housed in a line in the case, and a swing base on which the lamp main bodies are mounted. Is configured by a swinging mechanism section that swings up and down by remote control from the driver's seat and the like, and a mechanism that individually adjusts the optical axis of each of the lamp bodies with respect to the swinging base.

In this case, the swing mechanism section includes a rotation-controlled motor, an eccentric cam rotated by the motor, and an arm having one end connected to the eccentric cam and the other end connected to the swing base. To be done.

[Action]

In this structure, the swing base is swung in the vertical direction by remotely operating the swing mechanism, and the plurality of lamp bodies mounted on the swing base are vertically adjusted in the optical axis. Further, by individually adjusting the optical axes of the plurality of lamp bodies, the light irradiation range as the light projector is adjusted, and the optical axis adjustment in the left-right direction is unnecessary.

〔Example〕

 Next, the present invention will be described with reference to the drawings.

1 to 3 are views showing an embodiment of the present invention. FIG. 1 is a partially cutaway plan view, FIG. 2 is a partially cutaway front view, and FIG. 3 is A- in FIG. It is an A line sectional view.

In these figures, 1 is a case of the projector, and as shown in FIG. 6 together with a perspective view of the mounted state, it is formed into a horizontally long cylindrical shape having an elliptical side surface, and brackets 2 are provided on both sides of the lower surface thereof. Also, it is supported in a substantially horizontal state on the roof of a vehicle 4 such as a police car via bolts and nuts 3.
The case 1 has an opening 5 formed in the front surface thereof, and a lens 6 having an elliptical cross section is fixed by a screw 7 to close the opening 5. Further, inside the case 1, four lamp main bodies 8 are arranged in a horizontal row, and at a lower position thereof, a vertical swing mechanism section 9 for simultaneously swinging the optical axes of the lamp main bodies 8 in the vertical direction. Are installed.

This will be described in detail. First, the lamp body 8
As shown in FIG. 3, there is a lamp body 10 which is notched in one part and has an elliptical inner surface, and the inner surface of the lamp body 10 is surface-treated so as to be a reflecting surface. A lens 11 is attached to the notched portion of the lamp body 10, and a light bulb 12 such as a halogen lamp is provided at one focus inside the lamp body 10. For this reason, the lamp body 8 can be formed in a small size, and at the same time, it is possible to project light with high illuminance. A shade may be provided at the other focal point in the lamp body 10. Reference numeral 13 is a tongue piece for adjusting an optical axis, which will be described later, and is integrally formed on a part of the upper surface of the lamp body 10.

The vertical swing mechanism section 9 has a swing base 15 whose front end is swingably supported by a hinge 14 as shown in FIG. . The hinge 14 has one end fixed to the inner bottom surface of the case 1,
The other end is fixed to the swing base 15. Further, four lamp bodies 8 are mounted on the swing base 15 side by side in a row. In this case, a downward U-shaped support frame 16 corresponding to each lamp body 8 is integrally attached to the swing base 15, and longitudinal holes (not shown) formed at both ends of the support frame 16 are formed. Both sides of the lamp main body 8 are supported by using screws 17 which are inserted through. By loosening the left and right screws 17 individually and moving them back and forth along the elongated hole, the horizontal optical axis position of the lamp body 8 can be adjusted.

Further, a nut fixing portion 18 is provided on the upper end of the support frame 16, and a nut 19 fixed here is screwed onto an adjusting screw 20 inserted through a hole of a tongue piece 13 provided on the lamp body 8. . Reference numeral 21 is a compression spring elastically mounted between the tongue piece 13 and the nut fixing portion 18. By axially rotating the adjusting screw 20, the lamp body 8 can be vertically swung with respect to the swing base 15, and the optical axis position in the vertical direction can be adjusted.

On the other hand, a cam mechanism 22 as shown in FIG. 5 is provided below the swing base 15. The cam mechanism 22 is a motor whose rotation amount is controlled by an operation from the driver's seat of the vehicle.
23 and a gear box that reduces the rotation speed of this motor 23.
24, an eccentric cam 25 rotated at a low speed by the gear box 24, and an arm whose lower end is connected to the eccentric cam 25.
26 and. The gear box 24 is composed of a small gear 27 fixed to a rotating shaft 23a of the motor 23 and a large gear 29 fixed to a shaft 28 of the eccentric cam 25 here. Further, a connecting shaft 30 is connected to the upper end of the arm 26 so as to be orthogonal to each other, and the posture of the cam mechanism 22 is set so that the arm 26 is oriented in the vertical direction.
Is connected to a part of the swing base 15 near the rear end.

In FIG. 2, 31 is each lamp body 8 and motor.
It is a connector for electrical wiring to 23 etc.

According to this configuration, when the rotation of the motor 23 is controlled at the driver's seat, the eccentric cam 25 is rotated while being decelerated by the gear box 24 according to the rotation of the motor 23, and the eccentric cam 25 moves the arm 26 in the vertical direction. To be done. As a result, the rear end of the swing base 15 is vertically moved via the connecting shaft 30 connected to the upper end of the arm 26, and the swing base 15 is vertically swung about the hinge 14. Therefore, the four lamp bodies 8 mounted on the swing base 15 are simultaneously swung in the vertical direction, and the optical axes thereof are vertically changed. As a result, the optical axis of each lamp body 8 with respect to the vehicle 4 is changed in the vertical direction, and the irradiation area can be changed and adjusted.

Then, prior to this, the adjusting screw 20 in each lamp body 8 is rotated to individually adjust the vertical inclination of the lamp body 8 with respect to the swing base 15 to individually adjust the projection angles of the four lamp bodies 8. By appropriately combining the above, it is possible to arbitrarily change the vertical irradiation angle of the projector. Therefore, as described above, each lamp main body 8
By adjusting the optical axis of each of them individually, the vertical irradiation angle as the light projector can be adjusted, and by swinging the light projector vertically, the light projection range can be controlled.

Further, in this embodiment, the holes provided in the support frame 16 for inserting the screws 17 for supporting the lamp body 8 on both sides are formed as elongated holes, so that the screws 17 can be individually moved back and forth in the left and right directions. As a result, the optical axis of the lamp body 8 can be adjusted in the left-right direction. Therefore, each lamp body 8
By individually adjusting the optical axes in the left-right direction, it is possible to adjust the irradiation range in the left-right direction as the projector. This adjusting mechanism can also be configured as an optical axis adjusting mechanism using an adjusting screw.

By adjusting the left-right optical axis of each lamp body 8, it is possible to set a wide irradiation range in the left-right direction as a light projector, which allows the left-right direction of the light emitter to be sufficiently changed only by changing the direction of the vehicle. It becomes possible to satisfy the change of the irradiation range of the direction, and the optical axis adjusting mechanism as a projector is not required, and the structure for this can be simplified.

Instead of mounting the lamp body 8 directly on the swing base 15, an inner case capable of housing the lamp body 8 may be provided, and the inner case may be formed on the swing base 15. In this way, the lamp body 8 is not directly connected to the swing base 15, but the lamp body 8 can be easily replaced by attaching and detaching the lamp body 8 to and from the inner case. Of course, it is possible to replace only the light bulb.

[Effect of device]

As described above, according to the present invention, the swing base having a plurality of lamp bodies mounted thereon can be vertically swung by remotely controlling the swing mechanism to adjust the optical axis of each lamp body in the vertical direction. Therefore, it is possible to easily adjust the vertical optical axis direction of the projector. Further, since the optical axis of each lamp body can be adjusted individually, it is possible to adjust the light irradiation range of the projector, and it is possible to set a wide and narrow light irradiation range according to the purpose of use.

Also, by adjusting the optical axis of each lamp body in the left-right direction, the light irradiation range of the projector can be set wide in the left-right direction, eliminating the need for a mechanism that changes the optical axis of the projector in the left-right direction. It suffices to provide the optical axis mechanism, and the structure can be simplified and the size can be reduced.

Further, in the present invention, the arm is connected to the eccentric cam rotated by the motor, and the eccentric cam is rotated to reciprocally move the arm, whereby the rocking base is rocked up and down. By controlling the rotational position of the motor, the swing position of the swing base can be arbitrarily and easily controlled, and the optical axis of the projector can be adjusted more easily. In particular, since the swing base can be swung up and down by simply rotating the motor in one direction, there is an effect that control of the motor, that is, adjustment of the optical axis can be performed extremely easily.

[Brief description of drawings]

1 is a partially cutaway plan view of an embodiment of the present invention, FIG. 2 is a partially cutaway front view of the same embodiment, FIG. 3 is a sectional view taken along the line AA of FIG. 1, and FIG. FIG. 5 is a perspective view showing a schematic configuration of a part, FIG. 5 is a partially cutaway plan view of the cam mechanism, and FIG. 6 is a schematic perspective view of a vehicle equipped with the projector of the present invention. 1 ... Case, 2 ... Bracket, 3 ... Bolt / nut, 4 ... Vehicle, 5 ... Opening, 6 ... Lens, 7 ... Screw, 8 ... Lamp body, 9 ... Vertical swing mechanism Department, 10 ……
Lamp body, 11 …… lens, 12 …… bulb, 13 …… tongue, 14 …… hinge, 15 …… swing base, 16 …… supporting frame,
17 …… Screw, 18 …… Nut fixing part, 19 …… Nut, 20…
… Adjustment screw, 21 …… compression spring, 22 …… cam mechanism, 23 …… motor, 24 …… gear box, 25 …… eccentric cam, 26 …… arm, 27 …… small gear, 28 …… cam shaft, 29
…… Large gear, 30 …… Coupling shaft, 31 …… Connector.

Claims (1)

[Scope of utility model registration request] 1. A driver's seat including a case mounted on a vehicle and having a front surface formed of a lens, a plurality of lamp main bodies housed in a line in the case, and a swing base on which the lamp main bodies are mounted. And the like, and a mechanism for individually adjusting the optical axis of each of the lamp bodies with respect to the swing base, and the swing mechanism section is configured to rotate. It is composed of a controlled motor, an eccentric cam rotated by this motor, and an arm whose one end is connected to this eccentric cam and whose other end is connected to the swing base. The arm is reciprocated by the rotation of the eccentric cam. A vehicle floodlight, characterized in that it is configured to move and swing the swing base up and down.