JPH0417205A - Luminaire - Google Patents

Abstract

PURPOSE:To prevent operational error of a human body sensor, and facilitate adjustment of the angle thereof by forming an opening in a main frame, and fitting a human body sensor inside of this opening freely to adjust the angle of the human body sensor, and fitting a sensor cover freely to disconnect. CONSTITUTION:An opening 19 is formed in a main frame 11, and a human body sensor 21 for detecting a human body and controlling a lighting fixture 12 is fitted inside of the opening 19 freely to adjust the angle of the sensor 21, and a sensor cover 38 is fitted to the opening 19 freely to disconnect. Consequently, the human body sensor 21 is not touched at the time of cleaning or the like, and the angle of the human sensor 21 can be adjusted by removing the sensor cover 38 from the main frame 11. Operational error is thereby prevented, and the angle of the human body sensor 21 can be adjusted easily.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a lighting fixture that blinks or dims in response to people coming in and going out.

(Conventional technology) In lighting equipment, a human body sensor is placed together with the lamp,
The lights are usually turned off, and when someone comes, the human body sensor detects this using the infrared rays of the human body and the lights are turned on.
Alternatively, the lamps are not always turned on at 100%, but are turned on at a predetermined rate, and when a person comes, a human body sensor detects this and turns the lamps on at 100%.

Conventionally, such lighting equipment has been disclosed in Japanese Unexamined Patent Application Publication No. 1-265
As shown in Publication No. 497, a human body sensor is supported in a main body having a lamp so that its angle can be adjusted freely, and an operating part for adjusting the angle of the human body sensor is provided on one side of the main body. It is known that the angle can be rotated to adjust the detection area of a human body sensor.

(Problem to be Solved by the Invention) In the above-mentioned lighting equipment, the operating part that rotates and adjusts the angle of the human body sensor is exposed to the outside, so the operating part may be moved during cleaning etc. or may be tampered with. It is easy to do, and normal movement is easily inhibited. Furthermore, since the human body sensor is disposed within the main body, the entire main body must be made of a material that transmits the infrared rays of the human body, which limits the materials that can be used for the main body.

The present invention aims to solve such problems,
The purpose is to prevent erroneous operation of the human body sensor and to facilitate angle adjustment.

[Structure of the invention]

(Means for Solving the Problems) The lighting device of the invention of claim 1 has an opening formed in a main body having a lighting device, and a human body sensor for detecting a human body and controlling the lighting device inside the opening. The sensor cover is attached so that the angle can be adjusted freely, and a sensor cover is detachably attached to the opening.

Further, in the structure of claim 1, the invention of claim 2 is such that a support shaft protruding from both sides of the human body sensor is provided in the bearing portion provided on both sides of the opening of the main body, and a friction body is interposed on at least one side. It is rotatably supported.

In addition, in the structure of claim 1, the invention of claim 3 rotatably supports support shafts protruding from both sides of the human body sensor on bearings provided on both sides of the opening of the main body, and A stopper mechanism is provided between the side bearing and the support shaft to restrict the range of rotation of the support shaft.

Furthermore, the invention of claim 4 is the configuration of claim 1,
The sensor cover protrudes from the opening of the main body, and
The lamp side is made thicker.

(Function) In the invention of claim 1, the sensor cover is removed from the main body, and the angle of the human body sensor is adjusted from the opening.

Further, in the invention according to claim 2, when adjusting the angle of the human body sensor, the rotational angular position of the human body sensor is maintained by the frictional force of the friction body.

Further, in the third aspect of the invention, when adjusting the angle of the human body sensor, the rotation range of the human body sensor is limited by the stopper mechanism, and the human body sensor is set at an effective angle.

Furthermore, in the fourth aspect of the invention, the thick portion of the sensor cover reduces the incidence of infrared rays from the lamp, thereby preventing malfunction.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 to 4, reference numeral 11 denotes a box-shaped main body with an open back, and a lamp 12 is provided at the upper front of the main body 11. This lamp 12 has an arm 13 protruding forward from the front surface of the main body 11, a cylindrical base 14 with an open top surface connected to the tip of the arm 13, and a lamp socket 15 inside the base 14. A lamp 16 is attached to the lamp socket 15, and a globe 17 is detachably attached to the base 14 to cover the lamp 16.

A circular opening 19 is formed at the lower front of the main body +1, and an annular edge frame 20 is provided protruding forward from the outer periphery of the opening 19. A human body sensor 21 that detects a human body and controls the lamp 12 is disposed inside the opening 19, and the human body sensor 21 is provided with a detection section 22 at the center of the front surface. Also, the fifth
As shown in the figure, support shafts 23 are protruded from both sides of the human body sensor 21, and these support shafts 23 on both sides are supported by bearings 24 provided on both sides of the opening 19.

The bearing portions 24 on both sides are provided with support portions 25 provided in parallel on both sides within the opening 19, and a recess 26 having a semicircular arc cross section is formed on the inner surface of the support portion 25. A presser 27 is removably attached to the inner surface of the recess 26 with upper and lower screws 28.
A recessed portion 29 having a semicircular arc cross section is formed opposite to the recessed portion 29 .

The support shafts 23 on both sides of the human body sensor 2I are rotatably supported between the recesses 26 and 29 of the bearings 24 on both sides.

In addition, in the shaft support on one side of the human body sensor 21, as shown in FIGS. The O-ring 32 as a friction body is fitted, and the - side support shaft 23 is
It is supported in pressure contact with the recess 26, 29 of the bearing part 24 via the ring 32. The human body sensor 21 is held at the rotational angular position by the frictional force caused by the pressure of the O-ring 32.

Further, in the shaft support on the other side of the human body sensor 21, as shown in FIGS. 8 and 9, a stopper mechanism 33 for regulating the rotation range of the support shaft 23 is provided. This stopper mechanism 33 has a notch 34 formed in a predetermined angular range on the circumferential surface of the support shaft 23 on the other side, and a protrusion 35 that protrudes into the recess 29 of the presser 27 relative to the notch 34. It has been inserted. When the human body sensor 21 is rotated, the protrusion 35 comes into contact with either the upper or lower end of the notch 34, so that the range of rotation is restricted.

Further, in the shaft support having the stopper mechanism 33, a set screw 36 is screwed into the recess 26 from the front side of the support part 25, and the support shaft 23 is fixed at the tip by screwing the set screw 36 in. It is now possible to do so.

Further, as shown in FIGS. 1 to 4, the main body 11
A substantially hemispherical sensor cover 38 made of a translucent synthetic resin is removably attached to the opening 19 of the sensor. As shown in FIGS. 10 to 12, this sensor cover 38 has a thin section 39 extending from the center to the bottom, and thick sections 40 at the top and both sides. A stepped portion 41 that engages with the edge frame 20 of the opening I9 is formed on the outer periphery of the sensor cover 38, and approximately L-shaped engagement pieces 42 are protruded from the upper and lower sides. Also,
As shown in FIG. 4, an engaging edge 43 with which each of the engaging pieces 42 engages is provided protruding along the inside of the edge frame 20 of the opening 19, and each engaging edge 43 engages with the engaging piece 42. An inlet portion 44 for inserting the engagement piece 42 is cut out on one side.

When installing the sensor cover 38, each engaging piece 42 is inserted into the entrance portion 44 of the opening 19, and the stepped portion 41
are engaged with the edge frame 20, the sensor cover 38 is rotated by a predetermined angle, and each engagement piece 42 is engaged and supported inside the engagement edge 43. In this state, the sensor cover 38 is attached to the main body 11.
It protrudes in an arc shape from the opening j9 of the lamp, and an upper thick portion 40 is located on the lamp 12 side.

Further, as shown in FIGS. 1 to 4, the main body 11
A back plate 46 is disposed on the back side of the back plate 46, and a mounting hole 47 and a cord hole 48 are bored in the back plate 46.
A plurality of screw rods 49 are provided protruding forward from 6, and each screw rod 49 is inserted into an insertion hole 50 bored in the main body 11.
A decorative nut 51 is screwed onto the front end of each screw rod 49, and a back plate 46 is fixed to the main body 11.

When installing this lighting equipment, the power cord is drawn in from the cord hole 48 of the back plate 46 and connected to a terminal block (not shown), and the back plate 46 is fixed to the upper part of the wall surface with wood screws etc. through the mounting hole 47. Place the main body 11 on top, insert each screw rod 49 into the insertion hole 50 of the main body 11, and attach the decorative nut 5.
Fixed at 1.

In this state, the detection area of the human body sensor 21 is set based on the angle of the human body sensor 21. That is, the detection area is a predetermined angular range with respect to the horizontal direction, as shown in FIG. 13(a), and a predetermined angular range with respect to the vertical direction, as shown in FIG. 12 fb).

When it gets dark in the evening, an illuminance sensor (not shown) provided in the human body sensor 21 is activated, and the lamp 1 of the lamp 12 is activated.
6 lights up automatically. At this time, the lamp 16 is turned on at a predetermined dimming ratio, for example, about 15 to 20% of normal dimming.

In this state, when a person enters the detection area of the human body sensor 21, the human body sensor 21 detects this with infrared rays from the human body and activates, and the lamp 16 turns on at 100% full brightness, causing the person to enter the detection area. While the device is in motion, it will continue to be lit 100% of the time. Then, when the human body leaves the detection area or comes to a standstill, approximately 1
Return to 5-20% dimming lighting.

In the above operation, the thin interior 39 of the sensor cover 38
The lamp 12 side of the sensor cover 38, that is, the sensor cover 3
Since the upper part of 8 is a thick wall part 40, this thick wall part 4
0 reduces the incidence of infrared rays from the lamp 12 and prevents malfunctions. When it gets bright in the morning, the light sensor activates and automatically turns off the lights.

When adjusting the detection area by the human body sensor 21, remove the sensor cover 38, loosen the set screw 36 from the opening 19 with a screwdriver, rotate the human body sensor 21 vertically to adjust the angle, and determine the detection area. . At this time, the human body sensor 21 is held at the adjusted position by the angle adjustment and the frictional force caused by the pressure contact of the O-ring 32. Further, when adjusting the angle by rotating the human body sensor 21, by rotating the human body sensor 21 in either the up or down direction, the protrusion 35 comes into contact with either the upper or lower end of the notch 34 of the stopper mechanism 33. , the adjustment angle of the human body sensor 21 is kept from exceeding a predetermined range.

After setting the angle of the human body sensor 21 in this way, the set screw 36 is tightened to fix the support shaft 23.

In addition, in the above embodiment, it was explained that the lighting equipment is not turned on 100% of the time, but is turned on at a predetermined rate, and when a person comes, the human body sensor detects this and turns the lighting equipment 100% lighting on. Similarly, it is also possible to use a device that keeps the light off at all times and turns on the light when a human body sensor detects the presence of a person.

〔Effect of the invention〕

According to the invention of claim 1, since the human body sensor is housed in the main body, it is not touched during cleaning etc., and it is possible to prevent erroneous operation, and when adjusting the angle of the human body sensor, the sensor is removed from the main body. By removing the cover, the angle of the human body sensor can be easily adjusted from the opening.

Further, according to the second aspect of the invention, when adjusting the angle of the human body sensor, the angle can be easily set by holding the rotational angular position of the human body sensor by the frictional force of the friction body.

Further, according to the third aspect of the present invention, when adjusting the angle of the human body sensor, the rotation range of the human body sensor is limited by the stopper mechanism, and the human body sensor can be easily set at an effective angle.

Furthermore, according to the fourth aspect of the invention, the thick portion of the sensor cover reduces the incidence of infrared rays from the lamp, thereby preventing malfunctions.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the lighting device of the present invention, FIG. 2 is a perspective view of the assembled state of FIG. 1, and FIG. 3 is a partially cutaway side view of FIG. Figure 4 is a partially cutaway rear view of Figure 1, Figure 5 is a side view of the bearing part in Figure 1, and Figure 6 is an exploded perspective view of the shaft support on one side of the human body sensor in Figure 1. 7 is a sectional view of FIG. 6, FIG. 8 is an exploded perspective view of the other side of the human body sensor in FIG. 1, FIG. 9 is a sectional view of FIG. 8, and FIG. Rear view of the sensor cover in Figure 1,
Figure 11 is a cross-sectional view of the section XX in Figure 10, and Figure 12 is a cross-sectional view of the
13(a) and 13(b) are explanatory diagrams showing the detection area. 11...Body, 12...Lighting, I9...Opening, 21...
・Human body sensor 23... Support shaft, 24... Bearing part, 32
・・O-ring as a friction body, 33.・Stopper mechanism,
38...Sensor cover 40...Thick part. 】Isu[ HiX χH shell

Claims (4)

[Claims] (1) An opening is formed in the main body containing the lamp, and a human body sensor that detects a human body and controls the lamp is attached to the inside of this opening so that its angle can be adjusted freely, and a sensor cover can be attached to and removed from the opening. A lighting fixture characterized by being attached to. (2) Support shafts protruding from both sides of the human body sensor are rotatably supported by bearings provided on both sides of the opening of the main body with a friction body interposed on at least one side. The lighting fixture according to claim 1. (3) Support shafts protruding from both sides of the human body sensor are rotatably supported by bearings provided on both sides of the opening of the main body, and a support shaft is provided between the bearings on at least one side and the support shaft. 2. The lighting device according to claim 1, further comprising a stopper mechanism for regulating the rotation range of the shaft. (4) The lighting fixture according to claim 1, wherein the sensor cover protrudes from the opening of the main body and is formed thicker on the lamp side.