JPS6015205Y2 - Repetitive rotating lighting device - Google Patents

Description

[Detailed description of the invention] This invention is a repetitive rotation lighting device that uses a motor to rotate the lamp horizontally, allows you to freely set the rotation range of the light emission, and can automatically rotate forward and backward within that range. It is related to.

The present invention will be explained below with reference to drawings of embodiments. A base plate 2 is provided inside the upper surface of a case 1 shaped like a downward opening, and a motor shaft 4 of a Warren motor 3 installed below the plywood 2 is connected to the base plate 2 and the case 1. A boss 5 is fixed to the motor shaft 4, which protrudes upward from a hole provided in the center, and a U-shaped lamp arm 6 is fixed to the upper part of the boss 5, and the lamp holder 8 holding the lamp 7 is attached to the center of the circumferential side of the lamp holder 8. At the top of both ends of the lamp arm 6, tighten the adjustment screws 9.
9, each is rotatably supported.

A columnar stopper 10 is erected on the periphery of the plywood 2, and pin holes 12 are provided at several places on the circumference of the same circumference to fit the small diameter portion of the columnar pin 11 into the case 1.
Provide a hole slightly larger than the diameter of each hole.

Parallel to the top surface of the case 1, one end is the stopper 10 or the base plate 2
A columnar repeating arm 13 is provided so as to come into contact with the pin 11 fitted in the pin 11 and having the other end fixed to the boss 5.

14 is a bottom plate, and 15 is a lamp cord.

The large diameter portion of the pin 11 may be either cylindrical or prismatic so that a tool can be used, and the small diameter portion may be provided with a screw, and the pin hole 12 of the base plate 2 may be provided with a screw for engagement.

As shown in FIG. 5, the Warren motor 3 houses a donut-shaped coil 32 inside a yoke 31, and a rounded plate 33 is provided on the inner surface of the yoke 31 at the inner diameter of the coil 32, and a bearing 34 is fixed in the center thereof.

One end of the rotor shaft 36 of the rotor 35 made of a permanent magnet is supported by the bearing 34, and the other end is connected to the motor shaft 4 via a reduction gear head 37, and when the coil 32 is energized, the rotation of the rotor 35 is controlled by the motor shaft 4. Although it has a structure that can be rotated to
This motor has the following characteristics.

In the case of the single-phase two-pole example shown in FIG. 6, the alternating magnetic field B is generated by a single-phase sinusoidal current, as shown in the vector diagram, vectors Bf and Bb, which have opposite rotational directions and the same magnitude.
is the composite vector of

Therefore, the permanent magnet rotor 35 can rotate in either direction.

Next, to explain the operation of the present invention, in the third illustrated example, when the pin 11 is inserted into the pin hole 12d and power is supplied to the lamp 7 and the Warren motor 3, the lamp 7 lights up and the repetition arm 13 is moved to the stopper by the Warren motor 3. 10 directions,
It rotates in any direction in the direction of the pin 11, but if it now rotates in the direction of the pin 11, the repeating arm 13 will rotate in the direction of the pin 11.
It touches and stops rotating.

When the rotation of the motor shaft 4 connected to the repeating arm 13 is stopped from the outside, a - instantaneous braking occurs during the rotation in the +W force direction as shown in FIG. Since the motor 3 rotates in reverse, the repeating arm 13 rotates toward the stopper 10.

When the repeating arm 13 contacts the stopper 10, the repeating arm 13 rotates in the direction of the pin 11 due to the reverse rotation of the Warren motor 3.

The repeating arm 13 automatically rotates through the range of the angle between the pin 11 and the stopper 10, so that the lamp 7 repeatedly illuminates the range of rotation.

In Fig. 4, pins 11 and 11 are inserted into pin holes 12c and d.
, the repeating arm 13 automatically repeats rotation between the angular opening ranges.

In addition to those shown in FIGS. 3 and 4, the rotating light projection direction and light projection range can be freely set by fitting the pin 11 into one or two of the bottles 11 or the pin hole 12.

When power is supplied to the pin 11 in an unattended state, the repeating arm 13 automatically repeats rotation in a range of about 360 degrees, that is, almost the entire circumference, by the stopper 10.

The presence of the stopper 10 prevents the lamp cord 15 from wrapping around the boss 5 more than once.

The light emitting position of the lamp 7 in the vertical direction can be changed by adjusting the adjustment screws 9, 9.

As described above, the present invention allows you to freely select the number of pins to be attached and detached and the position of the pins, and to arbitrarily select or change the direction of rotation of the light emission and the rotation range of the light emission. It is a simple lighting device that can be installed and removed simply by attaching and detaching a pin, and its automatic repeating rotation structure does not require a complicated structure. It has various features such as being inexpensive, extremely easy to assemble, lightweight, and reliable operation due to its simple structure.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view, FIG. 2 is a longitudinal cross-sectional side view of the main parts, FIGS. 3 and 4 are plan views showing the operation of the main parts, and FIG. The figure is an exploded perspective view of the Warren motor, and FIG. 6 is a diagram showing the principle of its operation. Explanation of symbols 1... Case, 2... Base plate, 3... Warren motor, 4... Motor shaft, 5... Boss , 6...Lamp arm, 7...Lamp, 8...Lamp holder, 9...Adjustment screw, 10...Stopper, 11 ... Zen, 12 ... In hole, 1
3...Repetition arm, 14...Bottom plate, 1
5... Lamp code.

Claims (1)

[Scope of utility model registration request] The motor shaft 4 of the Warren motor 3 provided below the plywood 2 protrudes upward from the hole provided in the center of the base plate 2, the boss 5 is fixed to this motor shaft 4, and the lamp arm 6 and lamp holder 8 are attached to the top of the boss 5. A ramp 7 is provided through the plywood 2, a stopper 10 is fixed upright around the periphery of the plywood 2, pin holes 12 into which pins 11 are fitted are provided at several places on the circumference of the plywood 2, one end is fixed to the boss 5, and the other end is fixed. A repeating rotation illumination device is provided with a repeating arm 13 that comes into contact with a stopper 10 and a pin 11, and the repeating rotation direction and range can be arbitrarily set by attaching and detaching the pin 11.