JP2005302306A - Switching device of lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To mount an actuator to a casing without changing the existing casing of a lighting system and to allow a string of a pull switch to be operated with the actuator and a hand. <P>SOLUTION: In the lighting system switched by pulling the string 6 connected to a switching circuit 2 of the lighting system by a hand against returning force of a return spring (not shown), the actuator (a motor 11 and a solenoid 38) for operating the string 6 is mounted to a bracket 9 attachable to and detachable from the undersurface part 7 of the casing and is mounted to the casing lower surface part 7 along with the bracket 9. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lighting device that switches a switching circuit by operating a string for switching on / off that is connected to a pull switch of the lighting device, and more particularly to a switching device of a lighting device that operates a pull switch with a hand and a remote controller.

  Generally, the lighting device includes a pull switch (string-type switch) or an electronic switch that switches a switching circuit with a remote controller as a change-over switch, which switches a lighting switching circuit by pulling a string or pulling a string. However, in the structure in which the pull switch is switched only by the string, there is a problem that the string cannot be pulled in a slightly separated place or in a lying posture. Further, the structure in which the electronic switch is switched only by the electronic switch has a problem that the electronic switch cannot be switched when the remote control is accidentally lost or lost, or when the battery of the remote control is exhausted.

  In view of this, there has been proposed an illumination light switch device in which a solenoid is disposed in a housing and a string is pulled down by the solenoid. In this illuminating light switch device, a solenoid is arranged between the lower surface of the housing of the lighting and the electrical and electronic components in the housing, and the string for switching the pull switch is used for pulling the return spring of the pull switch. A stopper is attached at the corresponding position.

The movable portion of the solenoid is hooked to the string between the stopper and the pull switch, and the string is pulled to the main body side of the solenoid when the solenoid is energized. In addition, a receiver is connected to the drive circuit of the solenoid, and when the drive circuit receives a remote control switching signal transmitted via the receiver, the solenoid is energized so that the movable part of the solenoid is pulled to the solenoid body side. It has become.
Japanese Utility Model Publication No. 3-50723

  As described above, according to the conventional illumination light switch device, both the hand and the remote controller can be operated. However, since the housing of the illumination device is formed in accordance with the built-in electric and electronic parts and is narrow, a solenoid or There is a problem that the receiver cannot be installed

  Therefore, there is a technical problem to be solved in order to attach an actuator to the housing without changing the housing of the existing lighting device so that the string can be operated by hand with the actuator. It aims at solving.

The present invention solves the above problems by the following configuration.
A switching device for a lighting fixture includes: a lighting device that switches a string connected to a switching circuit of the lighting apparatus by manually pulling a string against a return force of a return spring; and an actuator for operating the string in the casing. It is attached to a bracket that is attached to and detached from the lower surface.

  Since the bracket is attached to the lower surface of the housing of the lighting device which is flat and has no unevenness, and the actuator for operating the string is attached to the bracket, the pull switch can be switched by operating the string with the hand and the actuator. In addition, since it is not necessary to process the lower surface portion of the housing, it can be used for a lighting device that has already been produced, and its added value can be increased.

  Hereinafter, an embodiment of the present invention applied to a known two-light type illumination device provided with two fluorescent tubes, a miniature bulb and a glow lamp will be described with reference to FIGS. The present invention constitutes a switching device by an actuator, a power conversion means for converting the driving force of the actuator into a vertical force of the string and transmitting it to the string, and a string connecting means for connecting the output portion of the power conversion means to the string. The switching device is incorporated in a bracket and attached to the lower surface of the casing of the lighting device. As the power transmission means, one corresponding to the type of the actuator is selected from among a link mechanism, a rack and pinion mechanism, and a worm and worm wheel.

Embodiment 1
FIG. 1 shows Embodiment 1 of a switching device for a lighting device according to the present invention, wherein reference numeral 1 denotes a two-lamp type lighting device, and reference numeral 2 denotes a switching device. The known lighting device 1 includes a switching circuit inside a housing 3, and a pull switch 4 is connected to the switching circuit via a return spring 5. The operation cord 6 is connected to the pull switch 4 in the housing 3 and pulled out from a small-diameter string passage hole 8 in the housing lower surface portion 7.

  A bracket 9 is attached to the housing lower surface portion 7 via a plurality of suction cups 10. The switching device 2 is incorporated in the bracket 9 in advance. The switching device 2 includes a stepping motor (hereinafter referred to as a motor) 10 as the actuator, a plate cam 12 that converts the rotational driving force of the motor 11 into a vertical reciprocating motion, a slider 13, and a slider guide 14 described later. A link mechanism (power transmission mechanism) 15 and a receiver 19 for inputting a switching signal of the remote controller 16 to a drive circuit 18 of the motor 11 to be described later.

  The bracket 9 is formed with a long hole 20 in the side wall 9a for making the slider guide 14 the same, and the long hole 20 extends in the vertical direction. A sliding pin 21 attached to one end of the slider 13 is inserted into the long hole 20 and is structured to be guided in the vertical direction along the long hole 20. The plate cam 12 is fixed to a rotation drive shaft 22, and the plate cam 12 and the slider 13 are connected by a rotation pin 23. The rotating pin 23 is rotatable with respect to the slider 13 and the plate cam 12, and the sliding pin 22 is rotatable with respect to the slider 12. Therefore, when the motor 11 is driven, the plate cam 12 rotates, and the slider 13 moves up and down by the rotation of the plate cam 12.

  A string connecting means 24 for transmitting the vertical movement caused by the reciprocating motion of the slider 13 to the string 6 is attached to the sliding pin 21. As shown in FIG. 2, the string connecting means 24 includes a lock member 25, a compression coil spring 26 as an elastic body incorporated in the lock member 25, and a piston-like press biased by the compression coil spring 26. A member 27, a nut member 29 screwed into a screw 28 engraved on the outer peripheral surface of the lock member 25, and a series of string passage portions 30 formed on the lock member 25 and the pressing member 27, The string 6 inserted into the string passing part 30 is pressed and locked by the pressing member 27. The pressing member 27 is movable in the axial direction, but does not rotate because the fitting cross section with the locking member is a rectangular rotation.

  The nut member 29 can change the urging force of the compression coil spring 26 by the pressing member 27. Therefore, when the screwing degree is increased, the string 6 is firmly clamped, and when the screwing degree is reduced, the string 6 can be removed. The position of the connecting means 24 can be adjusted. Since the pressing member 27 has a movable structure, the vertical position of the connecting member 24 may be adjusted by pressing the nut member 29. In addition, as a string connection member 24, you may use not only the thing of such a structure but a well-known thing.

The motor 11 is fixed to the other side wall 9 b of the bracket 9, and the receiver 19 is fixed to the bottom wall portion 9 c of the bracket 9. The receiver 19 is, for example, an electric circuit that receives signals using infrared rays as a carrier wave, and the remote controller 16 that is a transmitter is configured by an electric circuit that transmits signals using infrared rays as a carrier wave corresponding to the receiver 19. ing.

  The remote controller 16 is provided with a light on / off switch 31 in order to give a feeling of operation. When the receiver 19 receives a signal from the remote controller 16, a drive signal is output to the drive circuit 18 of the motor 11. When a drive signal is input, the drive circuit 18 controls the motor 11 based on a prestored table (not shown). Here, the table is a reference table for driving / stopping the motor 11, the rotation angle of the rotation drive shaft 22 of the motor 11, and the rotation direction stored in the memory.

When a drive signal is input to the drive circuit 18, the drive circuit 18 sets the rotation angle of the motor 11 from the table to a positive number of steps corresponding to the pulling stroke of the pull switch 4, and the original value before pulling down the pull switch by the return spring. Take out the negative number of steps to pull back to position. Regarding the positive / negative number of steps, positive is the pulling-down direction of the pull switch and negative is the pulling-back direction by the return spring. The number of steps is the amount of rotation.

  When the drive circuit 18 of the motor 11 rotates the rotation drive shaft 22 of the motor 11 with the number of positive steps based on the table, the pull switch 4 is pulled down by the string 6 and the switching circuit is switched. Next, the drive circuit 18 of the motor 11 rotates the motor 11 in the reverse direction with a negative number of steps, and then outputs a drive stop signal to the motor 11. When the drive circuit 18 of the motor 11 reverses the motor 11 with a negative number of steps, the return spring pulls back the string 6 and outputs a stop signal.

  At this time, a return spring (not shown) rotates while dragging the rotor of the motor 11. At this time, a weak resistance force accompanying power generation is generated in the motor 11, but the return force of the return spring is large. For this reason, the pull switch 4 and the rotary drive shaft 22 each return to the position before being pulled down. Further, since the load is not excessively applied to the return spring except for the pull-down and pull-down of the string 6 by the motor 11, durability is increased.

  When the string is operated by hand, the rotation drive shaft 22 of the motor 11 rotates by being dragged by the return spring, so that when the string 6 is pulled down by hand, the pull switch 4 is also pulled down. Then, when the hand is released from the string 6, the string 6 is pulled back by the return spring, and at the same time, the rotation drive shaft 22 of the motor 11 is dragged and reversely rotated. Accordingly, the home position of the motor 11 is kept constant even when the string 6 is operated by hand.

As described above, the switching device 2 according to the present embodiment interlocks the string 6, the slider 13, the plate cam 12, and the motor 11, so that the home position of the motor 11 is unlikely to shift, but the type and properties of the string 6 When the elongation occurs due to the above, it is assumed that the string 6 is loosened by the nut member 29. When the pull switch 4 is switched by rotating in one direction without performing forward / reverse rotation of the motor 11, the forward gear train and the reverse rotation between the plate cam 12 and the rotation drive shaft 22 of the motor 11 are reversed. These gear trains may be switched by an electromagnetic clutch.

(effect)
As described above, the switching device according to the present embodiment exhibits the following effects.
(1) The pull switch 4 can be operated by operating the string 6 with the remote controller 16 and hand.
(2) Since the lock position of the string can be freely changed by the string connecting means 24, adjustment corresponding to the extension of the string and the extension of the return spring is possible.
(3) Further, since the bracket 9 is adsorbed to the housing lower surface portion 7 of the lighting device 1 which is flat and has no irregularities via the plurality of suction cups 10, the housing lower surface portion 7 is not required to be processed. For this reason, it can be attached to a lighting device that is already produced or used. Moreover, since no special tool or skill is required for attaching and detaching the suction cup 10, anyone can easily attach it.
(4) Furthermore, since the motor 11 can be returned to the home position in relation to the return spring that pulls back the string 6 and the pull switch 4, the switching reliability can be improved.
The remote controller 16 and the receiver 19 may be provided with a selection circuit that can selectively change the frequency of infrared rays or radio waves to be used. In this way, even when there are a plurality of lighting devices in the same room, malfunctions other than the intended lighting device can be prevented.
(5) Moreover, since the suction cup 10 can be removed or removed from the string 6, the casing lower surface portion 7 can be cleaned.

[Modification of bracket]
3 and 4 show a bracket locking structure in which an opening for locking is provided in advance in the lower surface of the housing, and the bracket is fixed using the peripheral edge of the opening. In the example shown in FIG. 3, the locking portion 30 is formed in a wedge shape and can be locked by exceeding the fulcrum of the locking portion 30 with the edge of the opening 31 as a fulcrum.

  Further, in the example shown in FIG. 4, the locking portion 32 is formed in an L shape that is bent outward, and is configured to be locked by the elastic restoring force of the pair of side wall portions 9 a and 9 b that are opposed to each other of the bracket 9. It is. In any example, since the engaging portions 30 and 32 are engaged with the opening by the elastic restoring force of the pair of side walls and then engaged with the peripheral edge of the opening, the attachment workability is good. Further, since the bracket and the lower surface portion of the housing are integrated with the lower surface portion 7 of the housing by the elastic restoring force of the pair of side walls 9a and 9b, stable switching can be performed. In addition, it has a feature that it is difficult to drop off.

[Embodiment 2]
Embodiment 2 of the present invention will be described below. In this embodiment, the same components as those in the first embodiment, such as a lighting device and a bracket, are denoted by the same reference numerals, and different configurations will be described in detail.

FIG. 5 is an explanatory view showing a bracket and a switching device attached to the bracket.
In this embodiment, a pulley 33 is attached as a power transmission means to a motor 11 as an actuator, the string is wound around the pulley 33, and the pull switch 4 is operated by the rotational force of the pulley 33. An electromagnetic clutch 36 is interposed between the pulley shaft and the rotational drive shaft 22 of the motor 11, and a tension arm 37 for preventing loosening of the string 6 wound around the pulley 33 is pivotally supported on the bracket 9. A torsion coil spring 38 having a bracket 9 as a fixed system is attached to the tension arm 37. The string connecting means 24 is rotatably attached to the tip end portion of the tension arm 37.

  Therefore, when the electromagnetic clutch 36 is disengaged, the string 4 is loosened by being pulled in opposite directions by the biasing force of the tension arm by the torsion coil spring 38 and the biasing force of the return spring for pulling back the pull switch 4. Therefore, the winding of the string 6 around the pulley 33 is maintained. In addition, since the frictional force of the string 4 with respect to the pulley 33 increases when the number of windings of the string 6 around the pulley 33 is increased, the urging force of the tension arm 37 may be adjusted according to the number of windings of the string.

  In this case, a transmission circuit (not shown) of the remote controller 16 outputs an OFF signal to the electromagnetic clutch 36 while driving the drive motor 11 in conjunction with the on / off switch 31. The receiver position 19 is configured to output an ON signal, and this signal is input to a drive circuit (not shown) of the electromagnetic clutch 36. For this reason, the pull switch 4 is switched by operating the on / off switch of the remote controller 16 as in the first embodiment. Further, when the string is pulled down by hand, as described above, the string does not loosen, and the pull switch is switched by pulling down the string by hand as in the first embodiment.

[Embodiment 3]
The third embodiment of the present invention will be described below. In this embodiment, the same components as those in the first embodiment, such as a lighting device and a bracket, are denoted by the same reference numerals, and different configurations will be described in detail.

  FIG. 6 is an explanatory view showing a bracket and a switching device attached to the bracket. In this embodiment, the actuator comprises a solenoid 38, and the power transmission means comprises a lever 39. The main body 40 of the solenoid 38 and one end of the lever 39 are pivotally supported around a horizontal axis, and the string 6 is connected to the other end of the lever 39 via the string connecting means 24. The movable portion 41 of the solenoid 38 is connected to the lever 39 by a pin 42. For this reason, when the movable portion 41 of the solenoid 38 is pulled back, the string 6 is pulled down by the downward rotation of the lever 39, and when the movable portion 41 is pulled back by the return spring (not shown) of the solenoid 38, the lever 39 is rotated upward. As a result, the string 6 is pulled up.

  Therefore, also in this embodiment, the string 6 can be raised and lowered by the remote controller 16, the receiver 19, and the solenoid 38, and the pull switch 4 can be switched. Since the stroke of the movable portion 41 of the solenoid 38 corresponds to the stroke of the pull switch 4 by the return spring, the pull switch 4 can be pulled down even by pulling down the string 6 by the actual hand.

It is explanatory drawing which shows the structure of the bracket concerning Embodiment 1 of this invention, and a switching apparatus. It is sectional drawing which shows the structure of the string connection means for connecting a string. It is principal part explanatory drawing which shows the modification of the attachment structure of a bracket. It is principal part explanatory drawing which shows the modification of the attachment structure of a bracket. It is explanatory drawing which shows the structure of the bracket concerning Embodiment 2 of this invention, and a switching apparatus. It is explanatory drawing which shows the structure of the bracket concerning Embodiment 3 of this invention, and a switching apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Illuminating device 2 Switching apparatus 3 Switching circuit 4 Pull switch 5 Return spring 6 String 7 Case lower surface part 8 String through-hole 9 Bracket 9a One side wall 9b Other side wall 9c Bottom wall part 10 Suction cup 11 Motor (actuator)
12 Plate cam 13 Slider 14 Slider guide 15 Slider link mechanism (power transmission means)
16 Remote Control 18 Motor Drive Circuit 19 Receiver 20 Long Hole 21 Slide Pin 22 Motor Rotation Drive Shaft 23 Rotation Pin 24 String Connecting Means 25 Lock Member 27 Press Member 29 Nut Member 38 Solenoid (Actuator)
39 Lever

Claims (1)

In a lighting device that switches by manually pulling a string connected to a switching circuit of a lighting device against a return force of a return spring, an actuator for operating the string is attached to a bracket that is attached to and detached from the lower surface of the housing. A switching device for a lighting device, wherein the lighting device is attached.

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