JPH0517996U - lighting equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] The lamp can be turned on and off by simply holding your hand over the detection area, and the operation is reliable, and the lamp does not blink carelessly during kitchen work. To provide. [Construction] The lighting fixture 3 has a recess for accommodating the lamp L formed in the lower surface of the fixture main body 5, and a transmitter 6 and a receiver 7 of ultrasonic sensors for human body detection are arranged near the opening. It is set up.
The instrument body 5 is attached to the lower surface of the shelf 2. At this time, the detection area A of the ultrasonic sensor faces downward, and the distance in the downward direction is set within the range of approximately 10 cm to 30 cm. The width Y of the depth of the detection area A is substantially close to the depth dimension of the kitchen counter 1, and the width of the detection area A in the direction parallel to the kitchen counter 1 is smaller than the width Y.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lighting device

[0002]

[Prior Art]

 As shown in FIG. 6, the lamp of the lighting fixture 3 attached to the lower surface of the shelf 2 above the kitchen counter 1 such as a sink is turned on / off by pulling the pull string 4 of the pull switch by hand to turn the pull switch on / off. I was doing it.

[0003]

[Problems to be solved by the device]

 However, kitchen work may get wet with water, etc., or may be soiled with food, so if you pull the pull cord 4, wash your hands, wipe your hands, and then switch the switch. It was The present invention has been made in view of the above points, and its purpose is to turn the lamp on and off by simply holding the detection area over the hand, and the operation is reliable, and it can be used during kitchen work. It is to provide a luminaire in which the lamp is not blinked carelessly.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a lighting fixture mounted on the lower surface of a shelf above a kitchen counter such as a sink, in which the fixture body is turned on / off by a detection signal such as ultrasonic waves or infrared rays. A sensor for human body detection using a wireless signal medium is attached so that the detection direction is downward, and the width of the detection area of this sensor in the depth direction is wide and the width in the direction parallel to the kitchen counter is small. The downward detection distance of the sensor is approximately 10 cm to 30 cm.

[0005]

[Action]

 Thus, according to the present invention, a sensor for detecting a human body, which uses a wireless signal medium such as ultrasonic waves or infrared rays for turning on / off a lamp according to a detection signal, is provided in a downward direction in the device body. Since it is attached to the kitchen counter, the lamp can be turned on and off by simply holding your hand over the detection area, and the downward detection distance of the sensor is set to approximately 10 cm to 30 cm. Even if you work on the work surface, the lamp does not blink inadvertently, and the width of the sensor detection area in the depth direction is large, so when you hold your hand over the detection area, you can be sure that the hand detection area In addition, since the width in the direction parallel to the kitchen counter is small, the detection area does not affect the flow line when you take out or store something under the shelf. point It is have no be.

[0006]

【Example】

 Hereinafter, the present invention will be described with reference to examples. FIG. 1 shows a perspective view of an embodiment of a lighting device 3 of the present invention. A recess for accommodating a lamp L is opened on the lower surface of the main body 5 of the lighting device, and an ultrasonic sound for human body detection is provided near this opening. A wave transmitter 6 of a wave sensor and a wave receiver 7 are provided.

As shown in FIG. 2, the signal processing circuit 9 of the ultrasonic sensor emits an ultrasonic wave from the wave transmitter 6, and the ultrasonic wave emitted from the ultrasonic wave is received by the wave receiver 7 as a reflected wave reflected by an object. However, if the received signal is a reflected wave from the preset detection area A, the detection signal is output, and the detection signal is input to the control circuit 8 that controls the lighting / extinguishing of the lamp L. .. The control circuit 8 inverts the switch SW using a relay contact or the like to turn on / off the lamp L each time a detection signal is input from the ultrasonic sensor.

Then, as shown in FIG. 3, the lighting fixture 3 is attached to the lower surface of the shelf 2. At this time, the detection area A of the ultrasonic sensor faces downward, and the distance in the downward direction is set within the range of approximately 10 cm to 30 cm. Since the distance between the kitchen counter 1 such as a sink and the lower surface of the shelf 2 is usually about 60 cm to 100 cm, the work surface of the kitchen counter 1 does not include the detection area A.

The width Y of the depth of the detection area A is set to be substantially close to the depth dimension of the kitchen counter 1 so that when the hand is held over the detection area A, the detection can be reliably performed. Further, as shown in FIG. 4, the width of the detection area A in the direction parallel to the kitchen counter 1, that is, the width X in the direction viewed from the front is made smaller than the width Y, and the object under the shelf 2 is taken out. The human body is prevented from unnecessarily entering the detection area A when or when it is stored.

Even if the hand is dirty or wet, the lamp L can be turned on or off by the action of the ultrasonic sensor and the control circuit 8 simply by holding it over the detection area A. .. As the ultrasonic sensor, a wave transmitter / receiver in which a wave transmitter and a wave receiver are integrated is used, and as shown in FIG. 5, the shape of the horn 10 of the wave transmitter / receiver attached to the lower surface of the instrument body 5 is set in the detection area A. Correspondingly, the width y corresponding to the depth direction of the kitchen counter 1 may be increased and the width x corresponding to the direction parallel to the kitchen counter 1 may be narrowed.

Further, although the ultrasonic sensor is used in the above embodiment, a photoelectric switch using infrared rays or a heat ray sensor using a pyroelectric element may be used.

[0012]

[Effect of the device]

 According to the present invention, a sensor for detecting a human body using a wireless signal medium such as ultrasonic waves or infrared rays for turning on / off a lamp with a detection signal is attached to the main body of the device so that the detection direction is downward. The lamp can be blinked simply by holding your hand in the detection area. Even if you work on the work surface of the kitchen counter below the detection area of the sensor, the downward detection distance of the sensor is set to about 10 cm to 30 cm. Since the lamp does not blink carelessly and the width of the detection area of the sensor in the depth direction is large, you can put your hand in the detection area when you hold your hand over the detection area. Since the lamp can be blinked, and the width in the direction parallel to the kitchen counter is made small, the detection area is not affected by the flow line when taking out something deep under the shelf or removing it. , There is an effect that inadvertently lamp will not be flashing.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a circuit block diagram of an embodiment of the present invention.

FIG. 3 is a schematic side view showing a mounting state of an embodiment of the present invention.

FIG. 4 is a diagram illustrating a detection area of the ultrasonic sensor according to the embodiment of the present invention.

FIG. 5 is a perspective view of another embodiment of the present invention.

FIG. 6 is a partially omitted front view showing a mounting state of a conventional example.

[Explanation of symbols]

 1 kitchen counter 2 shelves 3 lighting fixtures 5 fixture body A detection area

Claims (1)

[Scope of utility model registration request] 1. A human body detection using a wireless signal medium such as ultrasonic waves or infrared rays for turning on / off a lamp by a detection signal in a lighting fixture attached to a lower surface of a shelf above a kitchen counter such as a sink. Sensor is attached so that the detection direction is downward, the width of the detection area of the sensor in the depth direction is large, the width in the direction parallel to the kitchen counter is small, and the downward detection distance of the sensor is approximately 10 cm to A lighting fixture characterized by having a length of 30 cm.