JPH0238328Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is applicable to automatic equipment, robots, production lines,
It can be installed as appropriate in parking lots, etc., and used to notify various equipment signals such as material shortages, work jams, etc., and is used to maintain the safety of workers and other users and equipment maintenance, and is used for the above signal notifications. This invention relates to an improvement in the rotating mechanism of a rotating light for the purpose of guiding or alerting people.

(Prior Art) Conventionally, as shown in FIG. 3, the rotating mechanism of a rotating light has a boss A erected on a base F disposed inside the rotating light, and a socket B above the boss A. is fixed, and the rotor C is rotated about the boss A as an axis of rotation by the sliding surface C1 with the inner wall of the rotor C, which integrally forms the reflecting mirror table portion E, and the sliding surface C2 with the lower surface of the rotor C with the base. The socket B is freely supported and has a clearance D between the periphery of the socket B, which is not used as a sliding surface, and the boss A in the vertical direction.

(Problems to be Solved by the Invention) However, in the conventional device described above, the sliding friction between the socket and the rotor is large, so the rotational load is large especially when used under vibration conditions such as in a vehicle, and the sliding surface deteriorates as the use continues. As dust enters and accumulates, the rotational load increases, scratches occur on the sliding surfaces, reducing rotational performance, and these adverse conditions cause deterioration of the motor and rotational drive mechanical parts, etc. This was a cause of shortening the life of the rotating light.

(Purpose of the invention) This invention was devised in view of the above problems, and it prevents dust from entering the sliding surface, minimizes the deterioration of the rotation mechanism of the rotating light, and provides stable rotation performance. At the same time, it is intended to increase the life of the rotating mechanism of the rotating lamp.

(Means to solve the problem) To achieve this, the rotation mechanism of the rotating light is made by drilling a through hole in the center of the rotor, and the inner wall of the through hole has a sliding surface that contacts so as to rotate around the boss, and a socket bottom surface. a sliding wall that is connected in a circumferential manner and faces each other with a clearance; a recess that is provided to surround the sliding wall; and a recess that stands around the recess and surrounds the socket side surface with a clearance. and an inner surface of the upper part of the rotor through hole.

(Function) With the above structure, for example, under operating conditions with vibration, the area of the upper part of the rotor sliding surface that contacts and slides against the lower surface of the socket becomes small, and the area between the socket side surface and the rotor through-hole becomes small. The sliding wall can block dust entering through the clearance between the upper inner surface and the sliding wall, without allowing the dust to reach the sliding surface.

(Example) This invention will be further explained with reference to an example shown in the drawings. Reference numeral 1 denotes a boss, which has a cylindrical shape and has a hole bored inside to lead out the electric wire. A socket 2 is fixed to this boss 1, and is erected on a base 5,
Tighten with caulking 11 and caulking 12, respectively. 3 is a light bulb, which is attached to the socket 2 and lights up when power is supplied. The rotor 4 is composed of a disk portion for transmitting rotational drive and on which a reflecting mirror 9 is placed, and a cylindrical portion that abuts the boss 1 at the center and pivotally supports the entire rotor. This disc portion is connected to a rotating shaft 61 of the motor 6 fixed to the periphery.
is pressed against the side to obtain rotational force. Here, if an annular rotor rubber made of an elastic material is fitted into the rotor 4 and the rotating shaft 61 of the motor 6 is brought into pressure contact with the rotor rubber, the rotational force can be transmitted more reliably. In the embodiment, a sliding method is used in which the rotary shaft is pressed into contact with each other, but gears may be provided on the rotary shaft 61 and the rotor 4 so that they mesh and rotate. Further, the cylindrical portion of the rotor 4 and the through holes of the reflecting mirror 9 are bored corresponding to the outer peripheral surfaces of the boss 1 and the socket 2, so that they slide in contact with the boss 1 and have a clearance with the socket 2. 4
They are opposed to each other with a distance of 1.a, and do not come into contact with each other even when the rotor rotates four times. Here, rotor 4
The lower surface of the socket 2 faces the bent surface 45 with a clearance 4b, extends the rotor 4 sliding surface 42, and provides a circular sliding wall 43 for sliding. It is provided with a recessed portion 44 so as to surround it. It is even better to apply a small amount of grease or the like to the recess 44 in case dust enters from above.

The rotating mechanism of the rotating light constructed as described above is supported and pivoted by the boss 1, assembled together with the motor 6 on the base 5, housed in the case 7 as a main body, and has a colored transparent globe 8. It is fitted externally to form a rotating light, and the light source light is reflected by or blocked by the reflecting mirror 9 to emit warning rotating light that blinks.

What is shown in FIG. 4 is a second embodiment, in which a rotor 4 is pivotally supported by a boss 1 erected on a base 5,
A rotating mechanism is constituted by a reflecting mirror 9 placed on the rotor 4, and the rotor 4 has a through hole in the center, and the wall surface of the through hole is connected to the sliding surface 42 with the boss 1 and the side surface of the socket 2. and upper portions of the through holes facing each other with a clearance 4a.

The sliding wall 43a is erected above the sliding surface 42 of the rotor with an appropriate space between it and the outer peripheral wall surface of the boss 1, and the upper surface of the sliding wall 43a faces the lower surface of the socket 2 with a clearance and surrounds the recess 44. Let rotor 4
constitute the inner surface. When in use, this is the sliding wall 4
Grease or the like is applied to the inner and outer recesses 44 of 3a to prevent dust from entering the recesses 44, and to provide grease replenishment on the inner side of the wall surface to smooth rotational sliding.

(Effects) Since the present invention is constructed as described above, there are fewer sliding surfaces and the rotational load is reduced in response to vibrations, which have been a problem when installed in automatic machines, vehicles, etc. In addition, by providing a concave part to provide a dust collection to prevent dust from entering the sliding surface, it prevents deterioration of the rotating mechanism and drive mechanism, and dramatically increases the mechanical life of the rotating light. It is highly effective.

[Brief explanation of the drawing]

Fig. 1 is a front center sectional view showing an embodiment of this invention, Fig. 2 is an enlarged sectional view of the main part, and Fig. 3 is a
An enlarged sectional view of the main parts showing the rotation mechanism of a conventional rotating light,
FIG. 4 is an enlarged sectional view of a main part showing a second embodiment of the present invention. 1...Boss, 2...Socket, 3...Light bulb, 4
... Rotor, 41 ... Disc part, 42 ... Sliding surface,
43... Sliding wall, 43a... Sliding wall, 44... Recess, 45... Bending surface, 5... Base, 6... Motor, 7... Case, 8... Globe, 9... Reflection Mirror, A...Boss, B...Socket, C...Rotor, D...Clearance, E...Reflector, 46...
...Concavity, F...base.

Claims (1)

[Scope of utility model registration request] A socket for supporting a light bulb is fixed to a boss erected on a base, and a reflector that reflects and emits light from the bulb and a rotor rotatably supported on the boss are integrally formed, In a rotating lamp configured to be rotationally driven by a motor held on the base, a sliding wall whose top surface is a sliding surface is provided protruding from the bent surface of the inner surface of the rotor to prevent sliding between the lower surface of the socket and the rotor. A rotating mechanism for a rotating light, characterized in that the sliding wall is surrounded by a recessed portion provided on the outer periphery of the sliding wall.