JP2000012245A - Foot level light - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent malfunction of a foot level light by suppressing the incidence of heat rays from unwanted area according to mounting positions of the foot level light. SOLUTION: The periphery of a sensor window 23 can be appropriately fitted with two heat ray shielding members 26 shielding the heat rays incident on a lens 25 and confining the detecting area of the heat waves. The heat wave shielding members 26 are formed into tabular shapes, and a pair of projections 26a are provided on the sides of the respective members 26. Two pairs of fitting holes 22a, 22b are formed respectively in both lateral end parts of a supporting part 22 provided to the periphery of the sensor window 23 loaded with the heat ray shielding members 26. Then, the pairs of projections 26a, 26a provided on the sides of the heat wave shielding members 26 are respectively fitted into the fitting holes 22a, 22b, thereby the heat ray shielding members 26 are detachably attached to the supporting part 22 provided to the periphery of the sensor window 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foot light embedded in a construction surface such as a wall.

[0002]

2. Description of the Related Art Conventionally, a foot light is a device that focuses a heat ray radiated from a human body on a human body detection sensor by a lens in a predetermined detection area, and controls light emission of a light source based on a detection signal of the human body detection sensor. For example, it is embedded in the wall of a corridor or the like, detects traffic, and automatically turns on the light source.
Some were used to turn off the lights.

However, the above-mentioned foot lamp does not have a function of limiting the detection area of the heat ray, and the foot light is incident by an incident heat ray from an unnecessary area according to the mounting position of the foot light. There was a problem of malfunction.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the invention according to claim 1 is a human body detection sensor for detecting a heat ray radiated from a human body, and the human body detection sensor. A light source that emits light in accordance with the output of the human body detection sensor, a housing that houses the light source and has a sensor window that allows a heat ray to enter, and a heat ray shielding unit that shields the heat ray around the sensor window. By being detachably attached, it is possible to prevent the entry of a heat ray from an unnecessary detection area by the heat ray shielding means and prevent a malfunction of the foot lamp.

According to a second aspect of the present invention, in the first aspect of the present invention, a groove for attaching a heat ray shielding means is provided on the periphery of the sensor window, and the heat ray shielding means is slidably inserted into the groove.
By comprising the heat ray shielding member formed in a thin plate shape that can be detachably attached, the heat ray shielding means can prevent the incidence of heat rays from an unnecessary detection area and prevent malfunction of the foot light, and the heat ray shielding member can be used. It is possible to prevent the sensor window from easily coming off the periphery.

According to a third aspect of the present invention, in accordance with the first or second aspect of the present invention, the size of the body is formed to be two module sizes which can be mounted on a series of ready-made mounting frames, so that a ready-made product can be manufactured. When the body is mounted on a series of mounting frames, it can be juxtaposed with another wiring device in the space of one module size.

According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, there is provided a lens for focusing a heat ray on a human body detection sensor, and a lens support frame for supporting the lens. The ribs for locking and mounting the lens on the lens are projected, so the lens is locked to the rib and mounted on the lens support frame, eliminating the variation in the distance between the lens, the lens support frame, and the human body detection sensor, Variations in the detection function of the human body detection sensor can be eliminated.

According to a fifth aspect of the present invention, in any one of the first to third aspects of the present invention, there is provided a lens for condensing a heat ray on a human body detection sensor, and a lens support frame for supporting the lens. By providing a groove for sliding the lens on the lens, the lens is slid into the groove and mounted on the lens support frame, eliminating variations in the distance between the lens, lens support frame and human body detection sensor, and detecting the human body It is possible to eliminate the variation in the detection function of the sensor, and more reliably and easily mount the lens on the lens support frame.

According to a sixth aspect of the present invention, there is provided a lens for condensing the heat rays according to any one of the first to third aspects on a human body detection sensor, and a lens supporting frame for supporting the lens, wherein the lens has an upper edge of the lens supporting frame. By being sandwiched between the edges of the sensor window, variations in the distance between the lens, the lens support frame, and the human body detection sensor can be eliminated, and variations in the detection function of the human body detection sensor can be eliminated.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects, there is provided a shade for diffusing light from the light source,
A slide piece is provided on a surface of the shade facing the body, and a groove is provided in the body so that the slide piece is slidably inserted. The shade can be easily attached and the shade can be prevented from being displaced or detached from the body.

According to an eighth aspect of the present invention, in any one of the first to sixth aspects, there is provided a mounting frame having a mounting hole for mounting a body, and an embedding mounted on the mounting frame and forming the body on a construction surface. When fitted in the hole, it is composed of a round plate frame that comes into contact with the periphery of the embedding hole, and a plate that is detachably attached to the plate frame, wherein the plate has a shade portion that diffuses light from a light source. By being formed in a round shape having an opening through which heat rays enter, regardless of the size of the plate, the body can be attached to an embedding hole formed in a wall or the like, and the body can be accommodated in the embedding hole. Therefore, the appearance of the foot light can be improved.

[0011]

(Embodiment 1) FIG. 1 is an exploded perspective view of this embodiment. The body is formed by assembling and combining the synthetic resin body 1 and the cover 2 with a pair of assembly frames (not shown). The assembly frame is formed by projecting assembly legs at both ends and a center of a strip-shaped substrate portion. Then, the board portion of the assembly frame is placed on the side edge 2a provided on the cover 2, and the assembly legs are positioned in the mounting recess 2b provided on the cover 2 and the assembly recess 1a provided on the body 1. The body 1 and the cover 2 are expanded by expanding the forked claw formed at the lower end to the right and left.
Are combined to form a body. In addition, locking claws are protrudingly provided near both ends of the substrate portion of the assembly frame, and an upright piece having an engaging hole is provided, and either the locking claw or the engaging hole is used as described later. The container can be attached to either a metal mounting frame or a synthetic resin mounting frame.

The interior of the body 1 is partitioned by a partition wall 4 into a terminal receiving section 5 and a printed board receiving section 6. The terminal accommodating section 5 is further divided by the central wall 7 into the first accommodating chamber 5.
The first and second storage chambers 52 are divided. These first
An unlocking button 10 is provided at the bottom of each of the second storage chambers 51, 52, and a terminal plate 8 is further provided. An operation hole (not shown) for operating the unlock button 10 facing the outside is provided at the bottom of the first and second storage chambers 51 and 52, and a driver or the like is provided from the bottom side of the body 1. The unlock button 10 can be moved by being inserted into the operation holes of the first and second storage chambers 51 and 52.

The two terminal plates 8 are accommodated in first and second accommodation chambers 51 and 52, respectively. The terminal plate 8 has a substantially comb-shaped vertical piece 8a and a horizontal piece extending horizontally from the vertical piece 8a.
(Not shown), an inverted T-shaped receiving piece 8c extending upward from the tip of the horizontal piece, and a spring piece (not shown) facing the receiving piece 8c. A pair of locking springs 9 are arranged between the vertical pieces 8a.

The locking spring 9 is formed by bending both ends of a strip of a conductive material having elasticity so that the locking pieces 9a are provided at both ends of the central piece 9c.
And a contact piece 9b. The lock piece 9a is inclined in a direction approaching the vertical piece 8a from the connection portion with the central piece 9c toward the tip edge, and the contact piece 9b is bent in a substantially S shape. The central piece 9c is formed in a substantially flat plate shape and abuts on the receiving piece 8c. Thus, the body 1 is located between the locking piece 9a and the contact piece 9b of the locking spring 9 and the vertical piece 8a of the terminal plate 8.
When the electric wire is inserted through an electric wire insertion hole (not shown) provided at the bottom of the cable, the tip of the lock piece 9a bites into the core wire of the electric wire to prevent the wire from slipping off, and is locked by the lock piece 9a and the contact piece 9b. When the core of the electric wire is pressed against the vertical piece 8a, conduction (connection) between the core of the electric wire and the terminal plate 8 is achieved. When the unlocking button 10 is pressed with the tip of a tool such as a screwdriver inserted through the operation hole, the locking pieces 9a of the locking spring 9 are bent in the pressing release direction by the pressing pieces 10a projecting from both sides. The connection between the terminal plate 8 and the electric wire can be released by pulling the tip of the locking piece 9a away from the core wire of the electric wire. It should be noted that one set of two locking springs 9 is used as a spare, and is used for sending wiring, for example, when sending wiring is required.

On the other hand, two printed circuit boards 12, 1 connected by a flat cable 11 are
3 are accommodated. The printed circuit board 13 is fixed to the body 1 by screws 15. The other printed circuit board 12 disposed on the cover 2 side has a light source, a human body detection sensor 16 having a pyroelectric element and detecting the movement of a person by a heat ray radiated from the human body, and a photoelectric sensor such as CdS. A brightness sensor 17 that includes a conversion element and detects ambient illuminance, and a terminal plate 8 are mounted. Here, in the present embodiment,
A pyroelectric element and an amplifier circuit (not shown) for amplifying the output of the pyroelectric element are housed integrally in a case, and a human body detection sensor 16 is provided.
Therefore, the overall size is reduced as compared with the conventional case where the amplifier circuit is mounted on the printed circuit board 12 separately.

As a light source, a plurality of discrete light emitting diodes (LEDs) 18 are arranged in a matrix (4
× 3). In a conventional foot light, since a light bulb such as a jujube bulb is used as a light source, replacement of the bulb due to expiration of its life has been required relatively frequently. However, as described above, by using the LED 18 having a much longer life than the light bulb as the light source, the replacement of the light source becomes almost unnecessary, and the maintenance becomes easy. Further, by using a plurality of LEDs 18, it is possible to secure the same illuminance as a conventional light bulb.

The cover 2 is provided with an opening window 21 that allows the LED 18 to face the front, and a sensor window 23 that allows the light receiving surfaces of the human body detection sensor 16 and the brightness sensor 17 to face the front. , A sensor window 23 and an opening window 21 are arranged.

A shade 24 is formed on the opening window of the cover 2 and is made of a synthetic resin having a light-transmitting property and is formed in the shape of a part of a cylinder which swells outward. In other words, the hook 24 is attached to the cover 2 by hooking the hooking claw 24a and the hooking piece 24b provided on the shade 24 with the hooking groove 21a provided on the periphery of the opening window 21 of the cover 2. .

The sensor window 23 of the cover 2 receives external light (including heat rays) from the human body detection sensor 16 and the brightness sensor 1.
7 is closed by a lens 25 composed of a Fresnel lens for condensing light on the light receiving surface. Here, the lens 25 is supported by the sensor window 23 by the lens support frame 27. By the way, the conventional lens has a structure in which the lens is fitted and fixed to the lens support frame from the outside, but in such a conventional structure, the lens is easily displaced or detached from the lens support frame due to an external force, and a human body Detection sensor 1
No. 6 may not have stable detection sensitivity.

Therefore, in the present embodiment, the lens support frame 27
The lens 25 is sandwiched between the sensor window 23 and the periphery of the sensor window 23, so that the lens 25 is securely fixed so that the lens 25 does not shift or come off due to external force. The lens support frame 27 has a pair of support pieces 27a formed in a half-moon shape.
A reflecting member 27e provided between the pair of support pieces 27a and having a diamond-shaped hole 27f in the center and having a chrome plating on the surface thereof; And a U-shaped portion 27b which is held at a slightly shorter distance, and an engagement claw 27c is provided at a lower end of the U-shaped portion 27b. The cover 2 corresponding to the lens support frame 27
Of the sensor window 23, a support portion 2 formed in a half-moon shape
2 protrudes from the front surface of the cover 2.

Thus, the engagement claws 27c of the lens support frame 27
Is engaged with the engagement hole 12a provided on the printed circuit board 12, and the U-shaped portion 27b is placed on the mounting surface of the printed circuit board 12, thereby mounting the lens support frame 27 on the printed circuit board 1.
Fix to 2. When the body 1 and the cover 2 are assembled and connected in this state, the support pieces 27a are fitted into the support portions 22,
The peripheral portion of the lens 25 is sandwiched between the upper edge of the support piece 27a and the peripheral edge of the sensor window 23 of the cover 2. As described above, since the lens 25 is supported so as to be sandwiched from both the front and back sides, it is possible to prevent the lens 25 from shifting or coming off with an external force, and to stabilize the characteristics of the lens 25.

When a heat ray is incident on the lens 25 configured as described above from the outside, the heat ray is reflected by the reflecting member 2 of the support frame 27.
The light is reflected by the mirror surface coated with chrome of 7e, further reflected by the inner surface of the lens 25, and detected by the sensor through a hole 27f provided at the center of the reflecting member 27e.

Incidentally, the conventional foot lamp does not have a function of restricting the detection region of the heat ray, cannot detect the detection region in accordance with the mounting position of the foot lamp, and receives the heat ray from an unnecessary region. There was a problem that the footlight malfunctioned.

For this reason, in this embodiment, the sensor window 23
The two heat ray shielding members 26, 26 for shielding the heat ray incident on the lens 25 and limiting the detection area of the heat ray can be appropriately attached to the peripheral edge of the lens. The heat ray shielding members 26, 2
Numeral 6 is formed in a thin plate shape, and a pair of projections 26a, 26a is provided on the side surface thereof. Further, the support portion 2 provided on the periphery of the sensor 23 to which the heat ray shielding member 26 is attached is provided.
Two pairs of mounting holes 22a and 22b are provided at both left and right ends of the pair 2, respectively. By fitting the pair of protrusions 26a, 26a provided on the side surfaces of the heat ray shielding members 26, 26 into the mounting holes 22a, 22b, respectively, the heat ray shielding member 26 is supported on the periphery of the sensor window 23. Part 22
Removably attached to. This makes it possible to appropriately control the incidence of heat rays from unnecessary detection areas, thereby preventing malfunction of the footlight.

FIG. 2 is a block diagram showing a circuit configuration of the present embodiment. The constant voltage circuit 28 converts a power supply voltage of a commercial power supply into a predetermined constant voltage.
A current limiting circuit 29 for limiting the current supplied to the microcomputer 8;
6 and a control circuit 19 for controlling the current supply from the constant voltage circuit 28 to the LED 18 in accordance with the sensor output from the brightness sensor 17. The human body detection sensor 16
Has a detection range of about 140 degrees in the horizontal direction, but the detection range can be limited by the heat ray shielding member 26 described above. Then, when a movement of a person within the detection range is detected, a pulse-like detection signal is output. When the illuminance detected by CdS is higher than a threshold level (about 40 lux in this embodiment), the brightness sensor 17
When the level is low, an L-level detection signal is output.

Next, the operation of this embodiment will be described. First, when power supply is started by turning on commercial power,
The presence or absence of a detection signal from the brightness sensor 17 or a detection signal from the human body detection sensor 16 only for a time until the operation of each unit such as the human body detection sensor 16 and the brightness sensor 17 is stabilized (hereinafter, referred to as a stabilization time). Regardless, the control circuit 19
The ED 18 is caused to emit light. If a detection signal is input from the human body detection sensor 16 within this stabilization time, the control circuit 19 outputs a predetermined holding time (about 15 in this embodiment).
The light emission of the LED 18 is continued for (seconds), and when there is no new detection signal input within the holding time, the LED 18 is turned off. Note that the control circuit 1
9 can be executed by using the timer function of the program 9.

After the operation of each part is stabilized, when the detection signal of the brightness sensor 17 is at the L level, that is, when the ambient illuminance is darker than the threshold level (about 40 lux), the detection from the human body detection sensor 16 is performed. When a signal is input, the control circuit 19 causes the LED 18 to emit light, and when the detection signal of the brightness sensor 17 is at H level, that is, when the ambient illuminance is brighter than the threshold level, for example, the human body detection sensor 1
Even if the detection signal is input from the control circuit 6, the control circuit 19
The ED 18 does not emit light. The control circuit 19 also controls the LED 18 based on the detection signal input from the human body detection sensor 16.
At the same time as the start of the holding time, and if a detection signal is input again from the human body detection sensor 16 within the holding time, the holding time is restarted from the beginning regardless of the detection signal of the brightness sensor 17. Resetting the time limit extends the light emission holding time of the LED 18. That is, the present embodiment has a so-called retriggerable function. When the time limit of the holding time is completed, the control circuit 19
Turns off the LED 18.

In the present embodiment, the body 1
In order to embed the body composed of the cover 2 and the wall on a construction surface such as a wall surface, it is formed in a size that can be attached to a ready-made mounting frame standardized for an embedded wiring device. As such a mounting frame, for example, there is a mounting frame (see JIS C8375) of a large-sized continuous wiring device standardized by JIS. In the present embodiment, the body is formed to have two module dimensions of the large-sized continuous wiring device that can be attached to a series of mounting frames of the large-sized continuous wiring device.

FIG. 3 shows a state in which a foot lamp having a body formed in the size of two modules and an outlet A having a size of one module of a large-sized continuous wiring device are mounted on a series of metal mounting frames 60. ing. The mounting frame 60 is formed in a rectangular frame shape having a mounting hole 60a at the center, and a long hole 62 for a box screw for mounting to an embedding box (not shown) on a mounting piece 61 opposed in the longitudinal direction; A mounting hole 63 for mounting a well-known scissor metal fitting (not shown) for mounting on a gypsum board or the like constituting a plate, and a screw for a plate screw for mounting a plate frame (not shown) or the like on the front surface. At least a hole 64 is provided. Further, a fixed claw (not shown) and a movable claw 66 are provided on each side piece 65 on both sides of the mounting hole 60 a of the mounting frame 60. Thus, after the fixing claw is inserted into one of the engagement holes of the upright piece of the assembly frame, the movable claw 66 is pushed into the other engagement hole and locked to easily attach the body to the mounting frame 60. Can be attached. When the body is attached to the three-module mounting frame in this manner, the two bodies are formed in the two-module size. Therefore, the outlet A shown in FIG. , A switch, a modular jack, and other wiring devices (large-angle continuous-type wiring devices) can be attached, and the mounting frame 60 allows easy installation alongside other wiring devices.

FIG. 4 shows a state in which the foot light and the outlet A are mounted on a mounting frame 70 made of synthetic resin. Here, the mounting frame 70 is provided with mounting pieces 71 opposed in the longitudinal direction.
At least, there are provided a long hole 72 for a box screw, a mounting hole (not shown) for mounting a scissor fitting, and a screw 74 for a plate screw. Further, one side piece 75 of the mounting frame 70 has three sets of locking holes (not shown).
The other side piece 76 has a horizontally long plate piece 77 suspended from the other side piece 76. The plate piece 77 has three openings 79 arranged side by side, and a projecting piece 78 projects upward from the lower edge of each opening 79. Thus, after inserting the locking claw 3d of the assembly frame into the locking hole of the side piece 75, and inserting the opposite locking claw on the shoulder 80 of the protruding piece 78 into the opening 79, As shown in FIG. 4, the container can be attached to the attachment frame 70. In this case, the length of the mounting body 70 in the longitudinal direction of the mounting hole 70a of the mounting frame 70 is set to a dimension in the short direction, and the size of the housing is one module. On the other hand, the size is twice as large as two modules.

By the way, as shown by a two-dot broken line in FIG.
A plate mounting frame 81 is provided on the front of the synthetic resin mounting frame 70.
The plate 82 is attached via the. The plate 82 has an opening of a size larger than the mounting window of the mounting frame 70, and
A part of the mounting frame 70 is exposed from the opening 2. Therefore, a decorative cover 83 for closing a gap between the opening of the plate 82 and the front of the foot light is attached to the front of the mounting frame 70. Thereby, the plate 82 having a large opening corresponding to a wiring device such as a so-called piano handle switch is provided.
Can be easily handled.

The foot light configured as described above is embedded and wired, for example, using a mounting frame 60 or the like below a wall of a general home, and irradiates the foot of a person walking in the corridor with the light of the LED 18. (Embodiment 2) Since the basic configuration in this embodiment and the following embodiments is common to Embodiment 1, common parts are denoted by the same reference numerals, and illustration and description are omitted. Only the characteristic portions of the embodiment described below will be described in detail.

The feature of this embodiment is that when it is necessary to limit the detection area of the sensor, as shown in FIG. 5, a pair of mounting portions provided on the side walls of both ends of the support portion 22 of the cover 2 are provided. The heat-ray shielding members 26, 26 for blocking the heat rays incident on the lens 25 are slidably inserted into the grooves 22c, 22d to appropriately limit the heat rays incident on the sensor.

At this time, the right and left ends of the support portion 22
A pair of parallel mounting grooves 22c, 22c and 22d, 22d
Are provided along the sensor window 23 and near the ends of the sensor window 23, respectively. The mounting grooves 22c, 22c and 22
The front ends of the heat ray shielding members 26, 26 formed in the shape of a thin flat plate are respectively fitted between d and 22d, and are slid and inserted. As described above, when the heat ray shielding members 26, 26 for controlling the heat rays are inserted and attached to the periphery of the sensor window 23, the detection area of the sensor can be appropriately limited similarly to the first embodiment. , 26 can be prevented from easily detaching from the support portion 22. (Embodiment 3) In Embodiments 1 and 2, the human body detection sensor 16 and the brightness sensor 17 are mounted on the printed circuit board 12, the printed circuit board 12 is fixed to the body 1, and the support frame having the reflecting member 27e is provided. 27 and the lens 25 are fixed to the cover 2, and then the body 1 and the cover 2 are assembled and connected. However, in this configuration, the variation in the distance between the sensor (the human body detection sensor 16 and the brightness sensor 17), the reflection member 27e, and the lens 25 increases, and thus the variation in the detection function of the sensor may increase.

Therefore, in this embodiment, as shown in FIGS. 6 and 7, the rib 27d is projected from the U-shaped portion of the support frame 27, and both ends of the lens 25 are engaged with the rib 27d. To mount the lens 25 on the support frame 27.

That is, the pair of U-shaped portions 2 of the support frame 27
A rib 27d protrudes from both ends of the outer peripheral surface of the outer peripheral surface of the supporting piece 2b.
A gap is provided between 7a, the U-shaped portion 27b, and the rib 27d. One end of the lens 25 is fitted into this one gap, the lens 25 is placed along the shape of the support piece 27 a in that state, and the other end is fitted into the other gap provided in the support frame 27. At this time, the lens 25 has elasticity and the support piece 27
Since both ends are bent along the shape of a, a restoring force is generated at both ends. Then, by the restoring force, both ends of the lens 25 come into contact with the ribs 27 d and are locked, and the lens 25 is mounted on the support frame 27.

When the lens 25 is mounted on the support frame 27 in this manner, the distance between the lens 25 and the reflecting member 27e having a chrome-plated mirror surface becomes constant as shown in FIG. Further, in this state, if the support frame 27 is fixed to the printed circuit board 12 by engaging the engagement claws 27c of the support frame 27 with the engagement holes 12a of the printed circuit board 12, the sensor, the reflection member 27e, and the lens 25 The variation in the distance is eliminated, and the variation in the detection function of the sensor is eliminated. (Embodiment 4) The feature of this embodiment is that, in order to fix the lens 25 to the support frame 27, FIGS.
As shown in FIG.
Is provided so as to slide the lens 25 into the groove 27g.

That is, a pair of parallel grooves 27g are provided along the upper surface of the support piece 27a at the upper end edges of the pair of support pieces 27a formed along the half-moon shape. Here, the depth of each groove 27g is set to a dimension that clamps the peripheral edge of the lens 25 when the lens 25 is inserted. Thus, as shown in FIG. 9, the tip of the lens 25 is fitted into a groove 27g provided on the upper edge of the support piece 27a,
The lens 25 is mounted on the lens support frame 27 by sliding.

As described above, the groove 27g is formed in the lens support frame 27.
Provided that the lens 25 is slid and inserted,
The variation in the distance between the sensor, the reflection member 27e and the lens 25 can be reduced, and the variation in the detection function of the sensor can be eliminated, and as shown in FIG.
Is fitted into the groove 27g, so that the lens 25 can be more securely and easily mounted on the lens support frame 27. (Embodiment 5) In the above-described first to fourth embodiments, the shade 24 is fixed to the cover 2 by the claw provided on the shade 24. However, when an external force is applied from the lateral width direction of the cover 2,
There is a possibility that the seeds 24 may shift or come off the cover 2.

Therefore, in the present embodiment, as shown in FIG. 11, a pair of slide pieces 24c is provided on the lower surface of the shade 24, and a slide groove 21b is provided in the cover 2,
The slide piece 24a is slid into the slide groove 21b, and the shade 24 is mounted on the cover 2.

On the lower surface of the shade 24, a pair of slide pieces 24a are respectively provided along the longitudinal direction of the lower surface. In addition, a pair of parallel slide grooves 21 b is provided on the inner wall surface in the longitudinal direction of the cover 2.
The insert groove 2 corresponding to the cross-sectional shape of the slide piece 24a of the shade 24 is provided on the side surface of the cover 2 on the side where the cover 2 is inserted.
1c is provided. The insertion groove 21c and the slide groove 21b are integrated by connecting a part of the groove.
Thus, the slide piece 24c of the shade 24 is inserted into the insertion groove 21c of the cover 2, and the shade 24 is slid in this state to attach the shade 24 to the cover 2.

By sliding the shade 24 to the cover 2 in this manner, the shade 24 does not easily shift or come off even when a force is applied from the outside. (Embodiment 6) In Embodiments 1 to 5, the body composed of the body 1 and the cover 2 can be attached only to a plate having two or three module dimensions.

Therefore, in the present embodiment, as shown in FIGS. 12 and 13, the body 30 assembled as in the first embodiment is attached to the mounting fixture 30 corresponding to the circular embedding hole.
By mounting on the mounting frame 38, a foot light can be realized in which the body can be disposed in a round recessed hole formed in a wall material of a house or the like, regardless of the dimensions of the mounting frame.

The attachment 30 includes a disk-shaped plate frame 31 made of a synthetic resin product, an attachment frame 38 attached to a rectangular opening window 31a at the center of the plate frame 31, and a shade portion 51.
And a round plate 50 having

The plate frame 31 has a central rectangular opening window 31.
a, a rectangular mounting frame 38 having a device mounting hole 37 into which two module wiring devices can be mounted is mounted, and a locking claw provided on the body via the mounting frame 38 is connected to a locking hole. The body is attached to 37a, 37b.

The mounting frame 38 is made of a synthetic resin product, and two sets of locking holes 37a and 37b are provided on both end frame pieces. The width of the locking hole 37a is substantially equal to the width of the locking claw of the wiring device. Two locking holes 37b, 37 formed at the same width and located at the center side
When one of the pair of locking claws formed on both side surfaces of the wiring device assembly frame (not shown) is engaged with the outer locking hole 37a, the other locking claw is positioned at the center. Can be engaged so as to be substantially in contact with the hole edge near the center of the locking hole 37b.

The mounting frame 38 is mounted on the plate frame 31 by fitting the mounting frame 38 into the opening window 31 from the upper surface (front surface) side of the plate frame 31. At this time, the back opening edges on both sides of the opening window 31a. Mounting piece 3 projecting more inward
1b, the frame pieces on both sides of the mounting frame 38 are mounted, and the locking claws 39 projecting downward from the frame pieces on both end sides are respectively mounted on the mounting pieces 3b.
This is performed by engaging and fixing to the back opening edge of the opening window 31a through the notch 31c formed in 1b.

The plate 50 can be detachably attached to the plate frame 31.

The plate 50 is formed of a synthetic resin molded product formed so as to have a round appearance and a thick wall.
1 and an opening frame 52 are provided. In addition, locking claws (not shown) are integrally formed at four places on the back, and these locking claws are detachably locked in locking holes formed in the plate frame 31 and attached to the surface of the plate frame 31. I can do it.

The screw body 40 is inserted through holes 31f on both sides of the opening window 31a of the plate frame 31 and screwed into the screw hole 36a of the metal fitting 36 with the screw body 40 interposed therebetween.

The holding member 36 is attached to the screw body 4 with one end fitted between parallel guide walls 43a and 43b integrally formed along the side surface of the body from the back surface of the plate frame 31.
When 0 is rotated in the tightening direction, the guide walls 43a, 4
3b moves along the guide walls 43, 43 according to the rotation rule. The mounting plate 3 is formed by clamping a wall plate or the like having an embedded hole with the rear surface of the plate frame 31.
The body including the zero is fixed in the embedding hole.

The guide walls 43a and 43b have a height that is higher in a direction in which the screw body 40 is rotated in the tightening direction.
Is moved to the tip end positions of the guide walls 43a and 43b, the holding member 36 rotates along the tip end of the lower guide wall 43a and the stopper 4 formed on the guide wall 43b.
4 and is housed inside the plate frame 31. When the screw body 40 is rotated in the tightening direction in this state, the clamping member 36 is rotated and the higher guide wall 4 is rotated.
When the screw body 40 is further rotated in the tightening direction in this state, one end is fitted between the guide walls 43a and 43b and moves toward the plate 31 while being guided as described above. ing.

In addition to the mounting means using the clamp 36, a wood screw insertion hole 45 for screwing the plate frame 31 to a wall plate or the like is provided at a position 90 degrees away from the position of 31f. By inserting a wood screw from the front side of the frame 31 through the insertion hole 45 and screw-fixing the plate frame 31 to the wall plate, the body can be fixed in the embedding hole.

An embedding hole consisting of a round hole slightly larger than the maximum outer diameter including structures such as the body and the guide walls 43a and 43b located behind the plate frame 31 is first made in the wall plate. And after giving the cloth tension to the surface of the wallboard,
The structure located behind the plate frame 31 is housed in the embedding hole, and the rear surface of the plate frame 31 is brought into contact with the peripheral edge of the opening of the embedding hole. In this state, the screw body 40 is rotated in the tightening direction so that the wall plate is sandwiched by the metal fitting 36. Or the plate frame 31 or a wood screw is inserted into the wood screw insertion hole 46, and the plate frame 31 is directly fixed to the wall plate with the wood screw. In this case, if there is a cross-pasting, it is sandwiched between the wall plate and the plate frame 31. Of course, the wiring work for connecting the connection line from the power supply for the power supply or the foot light wired in advance to the corresponding internal quick connection terminal portion is performed before the plate frame 31 is fixed.

As described above, by attaching the main body to the mounting frame 38 of the mounting fixture 30 corresponding to the circular embedding hole, regardless of the size of the plate, a round shape formed on a wall material of a house or the like can be obtained. Since the body can be disposed in the embedding hole and the body can be accommodated in the embedding hole, the appearance of the foot light can be improved.

[0056]

According to the first aspect of the present invention, there is provided a human body detection sensor for detecting a heat ray radiated from a human body, a light source which emits light in accordance with an output of the human body detection sensor,
A housing having a sensor window for receiving the light source and allowing a heat ray to be incident thereon, wherein a heat ray shielding means for shielding the heat ray is detachably attached to a peripheral edge of the sensor window, so that unnecessary detection is performed by the heat ray shielding means. There is an effect that it is possible to prevent the malfunction of the footlight by preventing the incidence of heat rays from the region.

According to a second aspect of the present invention, a groove for attaching the heat ray shielding means is provided on the periphery of the sensor window.
By being slid into the groove, by comprising a heat ray shielding member formed in a thin plate shape that is detachably attached,
The heat ray shielding means prevents the incidence of heat rays from unnecessary detection areas, thereby preventing malfunction of the foot light,
There is an effect that the heat ray shielding member can be prevented from easily coming off the periphery of the sensor window.

According to a third aspect of the present invention, since the size of the body is formed to be two modules which can be mounted on a series of ready-made mounting frames, the body is mounted on the series of ready-made mounting frames. In this case, there is an effect that it can be installed side by side with another wiring device in the space of one module size.

According to a fourth aspect of the present invention, there is provided a lens for condensing a heat ray on a human body detection sensor, and a lens support frame for supporting the lens, and a rib for locking and mounting the lens on the lens support frame. By projecting the lens, the lens is locked to the rib and attached to the lens support frame, and the lens, lens support frame,
There is an effect that variations in the distance of the human body detection sensor can be eliminated, and variations in the detection function of the human body detection sensor can be eliminated.

According to a fifth aspect of the present invention, there is provided a lens for condensing a heat ray on a human body detection sensor, and a lens support frame for supporting the lens, and a groove for slidingly mounting the lens on the lens support frame. With this arrangement, the lens can be slid into the groove and mounted on the lens support frame, eliminating variations in the distance between the lens, lens support frame and the human body detection sensor, and eliminating variations in the detection function of the human body detection sensor. This has the effect that the lens can be more reliably and easily mounted on the lens support frame.

According to a sixth aspect of the present invention, there is provided a lens for condensing heat rays on the human body detection sensor, and a lens support frame for supporting the lens, wherein the lens is sandwiched between an upper edge of the lens support frame and a peripheral edge of the sensor window. Accordingly, there is an effect that variations in the distance between the lens, the lens support frame, and the human body detection sensor can be eliminated, and variations in the detection function of the human body detection sensor can be eliminated.

According to a seventh aspect of the present invention, there is provided a shade for diffusing light from a light source, a slide piece provided on a surface of the shade facing the body, and a groove into which the slide piece is slidably inserted. By providing, the slide can be easily attached to the body by slidingly inserting the slide piece into the groove, and the shade may shift from the body,
There is an effect that it can be prevented from coming off.

The invention according to claim 8 is characterized in that a mounting frame having a mounting hole for mounting a body, and a peripheral portion of the embedding hole which is mounted on the mounting frame and which is fitted into the embedding hole formed in the construction surface. And a plate detachably attached to the plate frame, wherein the plate has a round shape having a shade portion for diffusing light from a light source and an opening for receiving heat rays. By being formed, regardless of the size of the plate, the body can be attached to the buried hole formed in the wall or the like, and the body can be accommodated in the buried hole, so that the appearance of the foot light can be improved. This has the effect.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a first embodiment.

FIG. 2 is a circuit block diagram of the same.

3A and 3B show a state where the above is mounted on a metal mounting frame, wherein FIG. 3A is a front view and FIG. 3B is a side view.

FIGS. 4A and 4B show a state where the above is mounted on a synthetic resin mounting frame, wherein FIG. 4A is a front view and FIG. 4B is a side view.

FIG. 5 is an exploded perspective view of the second embodiment.

FIG. 6 is a side view of a lens support frame according to a third embodiment.

FIG. 7 is a front view of the lens support frame of the above.

FIG. 8 is a side sectional view of the lens support frame of the above.

9A and 9B show a lens and a lens support frame according to a fourth embodiment, wherein FIG. 9A is a front view of a stage in which the lens is slidably mounted on the lens support frame, and FIG. 9B is a half sectional side view of FIG. (C) is another side sectional view of (a) of FIG.

10A and 10B show a lens and a lens support frame in the above, wherein FIG. 10A is a front view of a state where the lens is mounted on the lens support frame, FIG. 10B is a half sectional side view of FIG. FIG. 4 is another side sectional view of FIG.

FIG. 11 is an exploded perspective view of the fifth embodiment.

FIG. 12 is an exploded perspective view of the sixth embodiment.

13A and 13B show the same as above, wherein FIG. 13A is a front view, FIG. 13B is a side view, and FIG. 13C is a side view as viewed from another direction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Cover 12 Printed circuit board 16 Human body detection sensor 18 Light emitting diode (LED) 26 Heat ray shielding member

Continued on the front page (72) Inventor Shiro Mori 1048 Kazuma Kadoma, Osaka Prefecture F-term in Matsushita Electric Works Co., Ltd.

Claims (8)

[Claims] 1. A human body detection sensor for detecting a heat ray radiated from a human body, a light source that emits light in accordance with an output of the human body detection sensor, a sensor window that houses the human body detection sensor and the light source, and into which a heat ray is incident. And a heat ray shielding means for detachably attaching a heat ray shielding means to a peripheral edge of the sensor window. 2. A heat ray shielding means is provided on the periphery of the sensor window, and the heat ray shielding means comprises a thin sheet-shaped heat ray shielding member which is slidably inserted into the groove and detachably attached. The foot light according to claim 1, characterized in that: 3. The footlight according to claim 1, wherein the size of the body is formed into a size of two modules that can be mounted on a series of ready-made mounting frames. 4. A lens for condensing a heat ray on a human body detection sensor, and a lens support frame for supporting the lens, wherein a rib for locking and mounting the lens on the lens support frame is provided. The foot light according to any one of claims 1 to 3, characterized in that: 5. A lens for condensing a heat ray on a human body detection sensor, and a lens support frame for supporting the lens, wherein a groove for slidingly mounting the lens is provided in the lens support frame. The foot light according to any one of claims 1 to 3, wherein 6. A lens for condensing heat rays on a human body detection sensor, and a lens support frame for supporting the lens, wherein the lens is sandwiched between an upper edge of the lens support frame and a peripheral edge of the sensor window. The foot light according to any one of claims 1 to 3, wherein 7. A shade for diffusing light from a light source, a slide piece provided on a surface of the shade facing the body, and a groove into which the slide piece is slidably inserted is provided in the body. The foot light according to any one of claims 1 to 6, wherein 8. A mounting frame having a mounting hole for mounting a body, and a round shape attached to the mounting frame and abutting on a peripheral edge of the embedding hole when the body is fitted into the embedding hole formed in the construction surface. And a plate detachably attached to the plate frame, wherein the plate is formed in a round shape having a shade portion for diffusing light of a light source and an opening for receiving heat rays. The foot light according to any one of claims 1 to 6, characterized in that: