JPH04124706U - Motor driven rotating light with clutch - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent step-out of the stepping motor that rotates the reflector of a rotating light. [Structure] A lighting bulb 14 is fixedly installed on the machine base 1, and a reflector 15 is rotatably installed around the axial center position of the lighting bulb 14. A pulley 20, which is rotatably fitted around the rotational shaft 18 of the stepping motor 17, is slid into contact with the periphery of the rotary disk 13 that is integrated with the reflector 15. One end surface of the pulley 20 is connected to a rotating disc 22 which is pivotally attached to the rotating shaft 18.
The wave washers 25 and 25 are slidably pressed against each other by the elastic force of the wave washers 25, thereby forming a slip clutch mechanism 26.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is based on the so-called beacon lamp (beam control lamp). For rotating lights mounted on emergency vehicles, etc., with a clutch that has a particularly robust structure against impact. This invention relates to a driving motor-type rotating light.

0002

[Conventional technology]

Traditionally, it has been used as a beacon lamp mounted on the roof of emergency vehicles such as patrol cars. Therefore, a structure as shown in FIG. 5 is used. In other words, the rotation of this type of rotating light The light switching unit 50 has a lighting bulb 53 installed in a bulb socket 52 fixed to a machine base 51. The reflector 54 can be freely rotated around the axial position of the valve 53 as the rotation center. A rotary disk 55 is fixed integrally with the reflector 54, and a pulley 58 is press-fitted to the rotating shaft 57 of the drive motor 56 fixed to the machine base 51, and the pulley 58 is slid into contact with the periphery of the rotary disk 55, and the reflector 5 is driven by the drive motor 56. 4 is rotationally driven. The drive motor 56 of this type of rotating light unit 50 is A stepping motor is generally used to drive and control rotation and stopping.

0003

[Problem that the idea aims to solve]

However, rotating lights installed on vehicles cannot be protected from shocks such as vibrations from the outside. Therefore, the vibration from the reflector 54 side of the rotating light section 50 can cause a strong impact. When the The problem was that malfunctions such as "keying" frequently occurred.

0004 The present invention was devised in view of the above problem, and is a revamp for the drive motor. By absorbing the shock from the rectifier side, the rotating light drive motor We offer a rotating light with a drive motor equipped with a clutch that can prevent the motor from slipping out. The purpose is to provide

[0005]

[Means to solve the problem]

The clutch-equipped drive motor type revolving light according to the present invention has a lighting bar fixed to the machine base. The reflector of the bulb is rotatably mounted around the axis of the bulb, and A pulley rotated by a drive motor is installed on the periphery of a rotary disk that is integrated with the reflector. A rotating lamp in which the reflector is rotated by the drive motor, A pulley that slides on the rotary disk is rotatably extrapolated with respect to the rotation axis of the drive motor. In addition, the end face of the pulley is connected to a rotary disk having an appropriate elastic force attached to the rotary shaft. The gist is that the shaft is installed via a sliding clutch mechanism that is slidably pressed against the shaft. It is.

[0006]

[Effect]

According to the above configuration, the rotary disk of the drive motor and reflector is connected via a slip clutch mechanism. A shock absorbing structure is constituted by the rotationally connected shock absorbing structure. In other words, it rotates by sliding on the periphery of the rotary disk. The pulley is rotatably extrapolated to the rotation axis of the drive motor, and the pulley The end face is elastically pressed against the rotating disk attached to the rotating shaft, and the sliding resistance on both sides is Therefore, since it has a rotationally driven structure, if a large load is applied to the pulley side, Slippage occurs between the rotating disk and the sliding surface. Therefore, the pressure on the rotating disc is By adjusting the pressing elastic force of the rotating lamp, vibrations etc. from the outside can be prevented when using the rotating light. When a strong impact occurs on the rotating reflector, the slipping clutch machine Since slippage occurs in the rotational connection of the structure and large loads are not applied to the drive motor, the drive Even if a stepping motor is used as the motor, problems such as step-out may occur. Things will disappear.

[0007]

【Example】

The following is an example of a clutch-equipped drive motor-type revolving light according to the present invention according to the drawings. I will explain. Figure 1 shows a patrol unit that constitutes a clutch-equipped driving motor-type revolving light according to the present invention. Indicates a single-letter beacon lamp that is mounted on the roof of an emergency vehicle such as a car. It is something. The beacon lamp is mounted on the upper side of the machine base 1, which has a mounting structure 2, 2 on the lower surface. , a speaker with a speaker cover 3 located in the center and having a side cross-sectional shape of an approximately oval shape. A speaker accommodating portion 4 is configured, and a pair of speakers 5, 5 facing in the front-rear direction are built-in and fixed. It is what it is. In addition, both sides of the machine stand 1 are colored so that the side cross-sectional shape is approximately oval. covered with transparent synthetic resin gloves 7, 7, each of which has a pair of rotating It constitutes the rotating light sections 8, 8 in which the lights 6, 6 are arranged, and each of the two rotating light sections 8, 8 A reflecting mirror 9 is installed between the rotating lights 6 and 6 to block and reflect the luminous flux of both rotating lights 6 and 6. It is something that can be constructed.

[0008] FIG. 2 shows a rotating light located within a beacon lamp. The rotating light 6 has a cylindrical shaft 11 attached to a base plate 10 fixed to the machine base 1. A rotary disk 13 is rotatably mounted horizontally on the cylindrical shaft 11 via a bearing 12. At the same time, a two-way type valve 14 for lighting, which will be described later, is installed on the upper surface of the rotary disk 13. It is constructed by fixing a reflector 15. Further, the valve 14 is connected to the cylindrical shaft. Replaceably attached to the bulb socket 14a inserted and fixed at the upper end of 11. electrically connected to the conductive cable 16 introduced from the bottom side of the base plate 10. It is electrically connected.

[0009] FIGS. 3 and 4 show the rotation driving portion of the rotating lamp. 17 is a stepping motor fixed to the base plate 10; The rotating shaft 18 of the stepping motor 17 has a circumferential groove formed on the outer periphery of the rotary disk 13. A pulley 20 that closely slides on a rubber sliding ring 19 attached to the ring is rotatably inserted. There is. Further, the rotation shaft 18 of the stepping motor 17 is connected to the pulley 20. A rotating disk having a conical sliding convex surface 21 and an opposing conical sliding concave surface 23 facing each other. 22 is attached to the shaft, and the pulley 20 has a thrust washer 24 attached to the rotating shaft 18. Due to the elasticity of the wave washer 25 inserted through the Pressed against the rotating disk 22 with pressure, causing conical sliding contact between both members 20 and 22. The convex surface 21 and the conical sliding concave surface 23 constitute a sliding clutch mechanism 26 that is slidable. There is. Note that 27 is a receiving washer that supports the wave washer 25 in the axial direction. It's Sha.

0010 When the stepping motor 17 rotates, each rotating light 6 is operated by a slipping clutch. Rotation is transmitted from the rotating disk 22 to the pulley 20 via the mechanism 26, and the pulley 2 The rotary disk 13 in sliding contact with the valve 14 rotates and drives the reflector 15 to rotate around the valve 14. However, when mounted on an emergency vehicle, it can be used as a beacon, for example. If the lamp receives a large impact from the outside, the reflector 15 may be rotated. When different torques occur, the conical sliding convex surface 21 of the sliding clutch mechanism 26 and Slippage begins to occur between the conical sliding concave surfaces 23, which affects the stepping motor 17. It does not cause any harmonics (out-of-step). Therefore, the conical sliding convex surface 21 and the conical sliding concave surface By appropriately adjusting the elastic pressing force of the stepping motor 17, the stepping motor 17 can be prevented from stepping out. This allows the reflector 15 to be rotated smoothly.

[0011]

[Effect of the idea]

The clutch-equipped drive motor rotating light according to the present invention is constructed as described above. , between the stepping motor that is the drive motor and the rotary disk that fixedly supports the reflector. By having a slipping clutch mechanism, the stepping motor is a rotating light drive motor. Features include eliminating motor step-out and ensuring smooth rotation of the rotating light. The practical effects after implementation of this invention are extremely large.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of a beacon lamp that constitutes a rotating light section of a rotating light according to the present invention.

FIG. 2 is a partially cutaway vertical sectional view of the rotating light section of the beacon lamp.

FIG. 3 is an enlarged cross-sectional view of the sliding clutch mechanism.

FIG. 4 is a partial view of arrow A in FIG. 2;

FIG. 5 is a vertical cross-sectional view showing a conventional rotating light.

[Explanation of symbols]

1 machine 6 Revolving light 7 Gloves 8 Rotating light section 10 Base plate 11 Cylindrical shaft 13 Turntable 14 Lighting bulb 15 Reflector 17 Stepping motor 18 Rotation axis 20 Pulley 21 Conical sliding convex surface 22 Rotating disc 23 Conical sliding concave surface 25 Wave washer 26 Slip clutch mechanism

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Makoto Hattori 500 Kitawaki, Shimizu City, Shizuoka Prefecture Koito Co., Ltd. Inside Shizuoka factory

Claims (1)

[Scope of utility model registration request] Claim 1: A reflector of the bulb is rotatably mounted around the axis of a lighting bulb fixed to the machine base, and a drive motor is attached to the periphery of a rotary disk that is integrated with the reflector. In a rotating lamp in which a rotating pulley is in sliding contact and the reflector is rotationally driven by the drive motor,
A pulley that slides on the rotary disk is rotatably inserted around the rotary shaft of the drive motor, and the end surface of the pulley is connected to a rotary disk that is pivotally attached to the rotary shaft and has an appropriate elastic force. A drive motor-type revolving light with a clutch, characterized in that the shaft is installed via a sliding clutch mechanism that is slidably and press-contacted.