JPH021763Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a support mechanism for a motor serving as a source of rotational power in a rotating lamp.

(Prior Art) Conventionally, as shown in FIGS. 3 and 4, a rotating device for a rotating light has a base plate 2 provided on a bottom plate 1, and a socket support boss 4 into which a rotor 3 is rotatably fitted on the base plate. 2
A motor 6 is rotatably supported by a support mechanism to be described later with a screw 5 between support pieces 2a which are vertically opposed to each other above the base plate 2 and inserted into the motor shaft 7. The rotated pulley 8 is pressed against the rotor 3 to transmit the rotation of the motor 6 to the rotor 3. 9 is a light bulb, 10 is a reflector fixed on the rotor, and 11 is a transparent globe. The support mechanism for the motor 6 is
To explain this with reference to the drawings, the plate spring 12 bent into a U-shape and the central pieces 12a and 13a of the motor support angle 13 are sequentially fixed to the motor shaft 7 side of the motor 6. Through-holes 13c into which the screws 5 are fitted are provided at opposing positions of the parallel opposing angle pieces 13b of the motor support angle 13, respectively. screw 5
is formed by a head portion 5a, a threaded portion 5b, a cylindrical portion 5c, and a hemispherical portion 5d at the tip of the cylindrical portion 5c.
Screw holes 2b are provided at relative positions of the support piece 2a of the base plate 2, and the threaded portions 5b of the screws 5 are screwed into the screw holes 2b from the outside of the support piece 2a, respectively, and the cylindrical portion 5c
pass through the through hole 13c, and the hemispherical portions 5d are pressed against the leaf spring 12, respectively. The motor 6, which is supported by the screw 5 in this way, moves the pulley 8 to the rotor 3 by the spring pressure of the push spring 14 whose one end is fixed to the base plate 2.
The rotation of the motor 6 is transmitted to the rotor 3 by being in pressure contact with the rotor 3. In this structure, if the dimensional accuracy of the diameter of the cylindrical part 5c of the screw 5 and the diameter of the through hole 13c of the motor support angle 13 is poor, the rotation of the motor 6 about the tip of the hemispherical part 5d of the screw 5 as an axis may occur. Dimensional accuracy of these parts is required because it causes scratches. In addition, in this fitting, the through hole 13c slides on the cylindrical part 5c of the screw 5 (in the direction of the arrow in the drawing).
The leaf spring 12 is required to prevent this.

(Purpose of the invention) The invention consists of a motor support angle 13 and a leaf spring 14.
The purpose is to reduce costs and improve workability by integrating the parts, reducing the number of parts, and relaxing dimensional accuracy.

(Example) The present invention will be explained with reference to the example shown in the figure.
The plate spring 12 and the motor support angle 13 in the conventional structure of the motor support mechanism of the rotating lamp described above are combined with the structure of the motor support spring 15 in the present invention as shown in FIG. The motor support spring 15 is bent into a U-shape, and the center piece 15a is attached to the motor shaft 7.
Recesses 15c that are fixed to the sides and project inward are formed at opposing positions of the opposing spring pieces 15b. The tip of the hemispherical portion 5d of the screw 5 is brought into contact with this recess 15c. A hooking claw 15d is provided below the motor shaft 7 of the motor support spring 15, and a hooking claw 15d is provided in a downwardly arcuate manner. A locking pawl 2c is provided respectively, and a coil spring 16 whose length between the locking portions at both ends is slightly shorter than the distance between the locking pawls 2c is stretched, and the coil spring 16
15d of the motor support spring 15
Lock it to.

(Effects) As described above, in the motor support mechanism of the rotating light according to the present invention, the hemispherical portion 5d of the tip of the screw 5 fixed to the support piece 2a of the base plate 2
5c is engaged and clamped, but the motor 6 fixed to the motor support spring 15 has no wobbling in the direction of the arrow shown in FIG. can move. Motor 6 is supported by screw 5 and motor support spring 1.
There are only 5 parts, and the number of parts is extremely small, making it inexpensive and extremely easy to assemble. Since the coil spring 16 is used to bring the pulley 8 of the motor 6 into pressure contact with the rotor 3, reliable contact pressure can be obtained, and variations in individual products during production are extremely small, resulting in great practical effects.

[Brief explanation of drawings]

Fig. 1 is a partially sectional plan view showing one embodiment of the present invention; Fig. 2 is a perspective view of main parts; Fig. 3 is a sectional view showing an example of a conventional rotating lamp; Fig. 4 is the same as above; FIG. 3 is a partially sectional plan view of the support mechanism. 1... Bottom plate, 2... Base plate, 2a... Support piece, 2
b...screw hole, 2c...locking claw, 3...rotor,
4...Socket support boss, 5...Screw, 5a...
Head, 5b...screw part, 5c...cylindrical part, 5d...
...Semispherical part, 6...Motor, 7...Motor shaft, 8
...Pulley, 9...Light bulb, 10...Reflector, 11
... Globe, 12 ... Leaf spring, 12a ... Center piece, 13 ... Motor support angle, 13a ...
Center piece, 13b...Angle relative piece, 13c...
...Through hole, 14...Press spring, 15...Motor support spring, 15a...Central piece, 15b...Spring opposing piece, 15c...Recess, 15d...Hook claw, 1
6...Coil spring.

Claims (1)

[Scope of utility model registration request] A base plate is provided on the bottom plate, a socket support boss into which the rotor is rotatably fitted is erected and fixed on the base plate, and the central piece of the motor support spring is bent into a U-shape on the motor shaft side of the motor. are fixed, recesses protruding inward are formed at opposing positions of the opposing spring counter pieces, and screws are screwed into the support pieces provided vertically and parallel to each other above the base plate, The screw tip is engaged with the recess of the motor support spring, and the coil spring stretched between the support pieces of the base plate is engaged with the locking pawl provided on the motor support spring, thereby pressing the pulley against the rotor. A rotating light motor support mechanism characterized by: