JPH0247833B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a stand-type lighting fixture that can be dimmed.

[Background technology]

Conventionally, there have been many stand-type lighting fixtures that can be dimmed, but in conventional stand-type lighting fixtures that have a dimming function, the dimming operation section is generally located at the bottom of the entire lighting fixture body. Alternatively, it is provided on a base, and there is a problem in that it is difficult to access the dimming operation part, especially when used on the floor, resulting in poor operability.

In addition, with stand-type lighting fixtures that have a globe attached to the opening of the main body or base, the main body or base may not be illuminated by the light from the globe and may be in the shadows. When providing a light operating section, it is necessary to prevent the glove from being damaged during dimming operations.

[Object of the Invention] Therefore, it is an object of the present invention to provide a stand-type lighting fixture that has good dimming operability, can illuminate the lighting fixture itself evenly, and can reduce the risk of damaging the glove during dimming operation. shall be.

[Disclosure of the invention]

The stand-type lighting device according to the present invention has a cylindrical base with an upper opening, equipped with electric components such as a lamp and a dimming control means for the lamp, and a light-diffusing globe with an inner flange provided with an opening on the lower side. This is a stand-type lighting fixture installed in the upper opening of a cylindrical base, and a touch means for operating a dimming control means made of an elastic body and capable of elastically deforming and restoring is provided at substantially the upper end of the globe, and the cylindrical The outer periphery of the inner flange of the globe mounted on the base protrudes outside the cylindrical base, making it easy to operate, lighting the lighting fixture itself evenly, and eliminating the risk of damaging the globe during operation. small.

Embodiments The present invention will be explained below based on embodiments shown in FIGS. 1 to 6.

Reference numeral 1 denotes a cylindrical base with an opening at the top. A socket 3 in which a lamp 2 is mounted is disposed at the center of the bottom of the cylindrical base 1, and a dimming control circuit 4 is arranged around the socket 3. , an electronic sound generation circuit 5, a connection circuit 6, and other electrical components are mounted. 7 is a globe made of milky white glass, and this globe 7 has a constriction 7 at the lower end.
By fitting a into the peripheral wall 1a of the cylindrical base 1, the inner flange 7b adjacent to the constricted part 7a protrudes outside the cylindrical base 1, and is placed on the cylindrical base 1. A touch sensor 8 (also referred to as an antenna) connected to a signal detection section of the touch type dimming control circuit 4 is installed at the external vertex of the globe 7. The touch sensor 8 is formed by winding a conductive wire into a coil shape, and is designed to elastically deform and return to its original state when external force is applied. A lead wire 9 connects the touch sensor 8 and the touch type dimming control circuit 4. Further, 10 is a curl cord with a power plug led out from the cylindrical base 1.

Therefore, the light from the lamp 2 at the center of the cylindrical base 1 illuminates the globe 7 evenly without any deviation, so that the lamp image is uniform and there is no unevenness during dimming. Since it protrudes outside the cylindrical base 1, the light from the lamp 2 diffused by the milky white globe 7 can evenly illuminate the outer surface of the cylindrical base 1, resulting in beautiful illumination. In addition, since the touch sensor 8 is installed at the top of the outside of the globe 7, the blinking and dimming operation of the lamp 2 can be easily performed.Furthermore, the touch sensor 8 is formed by winding a conductive wire into a coil shape, so that when an external force is applied, the touch sensor 8 is formed by winding a conductive wire into a coil. Since the glove 7 is elastically deformed and restored, the risk of damaging the glove 7 during operation can be reduced. Note that a conductive plate that also serves as support for the globe 7 may be used instead of the lead wire 9.

FIG. 3 shows a block diagram of a circuit according to an embodiment of the present invention. In the figure, 4 is a touch-type dimming control circuit, and this touch-type dimming control circuit 4 has a touch sensor 8 for dimming operation that is touched by a finger or the like. Then, a control circuit (not shown) including a phase control circuit that controls the lamp 2 is activated, and if the contact is for a short time, for example within 0.4 seconds,
The lamp 2 is turned on or off, and if the contact is continuous, the dimming operation is repeated cyclically.
It is constructed from a known touch dimming unit which maintains the dimming state even when contact is removed. Reference numeral 5 denotes an electronic sound generating circuit, and the electronic sound generating circuit 5 is constituted by an appropriate known circuit which causes an electronic sound to be emitted from a speaker 11 when an input signal is received. Reference numeral 6 denotes a connection circuit for inputting a detection signal from the touch type dimming control circuit 4, which detects that the dimming operation is in progress, to the electronic sound generating circuit 5 as the above-mentioned input signal.

FIG. 4 shows a circuit diagram of the touch signal detection section in the touch type dimming control circuit 4, where Q ₁ is an oscillation transistor, Q ₂ and Q ₃ are detection signal generation transistors, L and C ₁ , C ₂ , C ₃ and C ₄ are oscillation coils and capacitors. In this circuit, when the touch sensor 8 is not in contact with the human body, the detection signal generating transistor Q ₁ operates, and the transistors Q ₂ ,
_Q3 turns on and off, and the voltage of, for example, 9V applied between both terminals will be output as is between the output terminal and the ground terminal. Also, when a human body such as a finger comes into contact with the touch sensor 8, the Q of the oscillation circuit
changes, oscillation stops, and due to this stop, transistors Q ₂ and Q ₃ turn off and on, and a voltage equal to the voltage drop due to resistor R ₉ (for example, 2 V) is created between the output terminal and the ground terminal. will occur.
Figure 5 shows the relationship between the touch sensor 8 and the voltage between the output terminal and the ground terminal.When there is no contact, a 9V "H" level signal is generated, and when there is a touch, a 2V "L" level signal is generated. The period of the “L” level signal corresponds to the period of contact with the touch sensor 8. Note that a voltage of DC15V is applied between the power input terminal and the ground terminal.

FIG. 6 shows a specific circuit of the connection circuit 6,
In the figure, ′, ′, and ′ are of the circuit in Figure 2, respectively.
When the signal input terminal ', which is the terminal connected to the terminal of the photocoupler 12, is at the "H" level, the transistor _Q4 is in an off state, and the phototransistor _Q5 of the photocoupler 12 is in an off state. On the other hand, when the input terminal' is at the "L" level, the base of the transistor _Q4 goes to the "H" level and turns on, and the power supply input terminal'
A current i ₁ flows through the circuit of the light emitting diode LED of the photocoupler 12, the transistor Q ₄ , and the ground terminal ′,
Phototransistor Q ₅ is turned on, and this turning on causes current i ₂ to flow, turning on transistor Q ₆ , and this turning on causes current i ₃ to flow, operating relay Ry, and the relay contact of this relay Ry. A power supply of +9V is connected to the electronic sound generating circuit 5 through r, and the electronic sound generating circuit 5 is operated.

When a finger or the like touches the touch sensor 8 for a short period of time (within 0.4 seconds), the electronic sound generating circuit 5 is turned on for a short period of time, and generates an electronic sound, for example, ``pitsu''. At this time, the dimming control circuit 4 turns on or off the lamp 2 by inputting a short-time contact detection signal.

When the touch sensor 8 is further touched with a finger or the like, the electronic sound generation circuit 5 continues to operate during that period, and the speaker 11 continues to emit the electronic sound. At this time, the lamp 2 is dimmed cyclically by the function of the dimming control circuit 4, and when the touch sensor 8 is released from the touch sensor 8 at the timing when the dimming level reaches the appropriate level, the dimming state at that time is maintained. Ru.
At the same time, the electronic sound described above stops producing, indicating that the dimming operation has been completed. If it is desired to adjust the volume of the electronic sound, the resistance value of the variable resistor V _R shown in FIG. 6 may be adjusted as appropriate. Furthermore, the tone color may also be changed.

〔Effect of the invention〕

As described above, according to the present invention, the touch means for operating the dimming control means, which is made of an elastic body and can be elastically deformed and restored, is provided at the substantially upper end of the glove, The outer periphery of the inner flange of the globe protrudes outside the cylindrical base, and the light from the lamp diffused by the globe can evenly illuminate the outside surface of the cylindrical base, creating a beautiful sense of illumination. The means is easy to operate, and the elastic deformation of the touch means makes it difficult for the touch means to transmit external force to the glove or the cylindrical base, so there is little risk of damage.

[Brief explanation of the drawing]

1 to 6 show embodiments of the present invention. FIG. 1 is a front view, FIG. 2 is a sectional view, FIG. 3 is an overall circuit block diagram, and FIG. FIG. 5 is a diagram illustrating the output operation of the touch type dimming control circuit, and FIG. 6 is a circuit diagram of the connection circuit used in the same. DESCRIPTION OF SYMBOLS 1... Cylindrical base, 1a... Peripheral wall, 2... Lamp, 3... Socket, 4... Dimming control circuit, 5...
...Electronic sound generation circuit, 6...Connection circuit, 7...Glove, 7a...Neck part, 7b...Inner tsuba, 8...
Touch sensor, 9... Lead wire, 10... Curl cord, 11... Speaker, 12... Photocoupler.

Claims (1)

[Claims] 1 A cylindrical base with an upper opening is equipped with electric components such as a lamp and a dimming control means for the lamp, and a light-diffusing globe with an inner flange at the lower opening is installed in the upper opening of the cylindrical base. It is a stand-type lighting device that is covered with a globe, and a touch means for operating a dimming control means that is made of an elastic body and can be elastically deformed and restored is provided at the substantially upper end of the globe, and A stand-type lighting fixture characterized by having an outer peripheral part of an inner flange protrude outside of a cylindrical base.