JPH053995Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a far-infrared radiator detection and notification device that detects far-infrared rays emitted from people, automobiles, etc. and notifies them.

[Conventional technology]

A far-infrared emitter detection and notification device (hereinafter simply referred to as a detection and notification device) that detects far-infrared rays emitted by people and notifies them to notify people who are far away that a person has come to the entrance of a house or building. ) is constructed by housing a printed circuit board equipped with a sensor circuit for detecting far infrared rays and a transmitter for notifying the output from the sensor circuit in a storage box made of, for example, plastic stick. In order to be able to fine-tune the direction of the detection area, a plurality of small ridges (jags) are provided on the edge of the printed circuit board, and protrusions that engage with these ridges are provided in the storage box so that the printed circuit board can be pressed with a finger. It is designed so that it can be moved inside the storage box. When not pressed with a finger, the peaks on the edges of the printed circuit board engage with the protrusions on the storage box, so the position of the printed circuit board in the storage box is fixed and the direction of the detection area is constant. .

[Problem that the invention attempts to solve]

As mentioned above, in order to adjust the position of the printed circuit board in the storage box, the edges of the printed circuit board are provided with a plurality of ridges (jags), and the storage box has a plurality of ridges (jags) that engage with the serrations on the printed circuit board. Although protrusions are provided, the printed circuit board has poor elasticity and is easily chipped, making it difficult to accurately process the edges to form jagged edges with high precision in size and shape. There were times when the jagged peaks were missing. For this reason, the position of the printed circuit board in the storage box cannot be adjusted accurately, resulting in a problem that the orientation of the detection area is adjusted with poor accuracy.

The present invention has been made to solve the above problems.

An object of the present invention is to provide a small and highly reliable far-infrared radiator detection and notification device that can accurately adjust the orientation of a detection area.

The above and other objects and novel features of the present invention will become apparent from the description of this specification and the accompanying drawings.

[Means for solving problems]

A sensor circuit for detecting far infrared rays emitted from a person, a car, etc., and a transmitter for notifying the detection of far infrared rays by the output of the sensor circuit are provided on a printed circuit board, and the printed circuit board is fixed to a battery box, A far-infrared emitter detection and alarm device in which the battery box is provided in a cylindrical body, wherein the cylindrical body is provided with a support portion that supports the battery box so as to be movable in the longitudinal direction of the cylindrical body. The battery box is provided with a detection area adjustment protrusion for determining the amount of movement of the battery box, and the cylindrical body is provided with an area adjustment protrusion receiving portion that engages with the detection area adjustment protrusion.

[Effect]

According to the above-mentioned means, since the area adjusting protrusion and the area adjusting protrusion receiving part are made of plastic that is less likely to chip than a printed circuit board and has high processing precision, the shape and dimensions of the area adjusting protrusion and the area adjusting protrusion receiving part can be adjusted easily. It is possible to obtain an area adjusting protrusion and an area adjusting protrusion receiving part that can be formed with high accuracy and in which the peaks of the area adjusting protrusion and the area adjusting protrusion receiving part 115 do not chip when the circuit device is moved. For these reasons, the position of the sensor within the cylindrical body can be adjusted accurately, so the orientation of the detection area can be adjusted with high accuracy, and a highly reliable detection and notification device can be obtained.

[Example of idea]

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

In addition, in all the figures for explaining the examples,
Components having the same function are given the same reference numerals, and repeated explanations thereof will be omitted.

Fig. 1 is an overall perspective view of a far-infrared ray emitter detection and notification device according to an embodiment of the present invention, Fig. 2 is a perspective view of the far-infrared radiator detection and notification device with the cover removed, and Fig. 3 is a perspective view of the pedestal of the far-infrared radiator detection and alarm device, FIG. 4 is a perspective view of the far-infrared radiator detection and alarm device when the rotation lock is turned over, and FIG. 5 is a perspective view of the far-infrared radiator detection and alarm device. Perspective view of the cylindrical body of the detection and alarm device. FIG. 6 is a perspective view of the circuit device inside the cylindrical body shown in FIG. 5 taken out.

As shown in FIG. 1, the far-infrared radiator detection and notification device (hereinafter referred to as the detection and notification device) 1 of this embodiment
This cylindrical body 100 houses a sensor circuit device that detects far infrared rays emitted from people, cars, etc., and a transmitter that notifies the detection of a far infrared radiator by the output of the sensor circuit device. A pedestal 300 on which the body 100 is mounted, a cylindrical body 100 and a pedestal 3
A protective cover 200 is provided to cover 00. Reference numeral 109 denotes a Fresnel lens provided at a predetermined portion of the cylindrical body 100, which converges and irradiates far infrared rays emitted from the far infrared ray emitter onto the sensor 151 (see FIG. 5) inside the cylindrical body 100. It is something. The cylindrical body 100, the protective cover 200, and the pedestal 300 are made of plastic stick, and the Fresnel lens 109 is made of polyethylene.

As shown in FIG. 2, the cylindrical body 100 is cylindrical and can be divided into an upper cylindrical body 101 and a lower cylindrical body 102. As shown in FIG. A gear 105 having an axis concentric with the cylindrical body 100 is provided at both ends of the cylindrical body 100, and a central part of the gear 105 has a circular step concentric with the cylindrical body 100 and is slightly recessed from the side surface of the gear 105. Section 106. A shallow step 106A is provided between the gear 105 and the step portion 106. Grooves 103, 1 are formed on the side surface of the cylindrical body 100 slightly inside the gear 105.
04 is provided. The grooves 103 and 104 go around the side surface of the cylindrical body 100. groove 103,
104 includes cylindrical body side support members 301 and 302, or 303 and 30 provided on the pedestal 300.
4 are fitted to support the side surface of the cylindrical body 100 in a slidable manner. Each cylindrical body side support member 301, 302, 303, 304
The surface in contact with the grooves 103, 104 is
It has almost the same curvature as 04. Also, pedestal 3
At positions corresponding to the gear 105 of the cylindrical body 100 of 00, cylindrical body end face support members 305 and 306 are provided. This cylindrical body end support member 30
5,306 has a shape like an inverted U, and is integrally formed with the base 300.
A pawl 307 that engages with the step 106A on the end surface of the cylindrical body 100 is provided on the surface of the cylindrical body end support members 305 and 306 facing the gear 105. By hooking this claw 307 on the step 106A, the cylindrical body 100 is prevented from easily coming off the pedestal 300. Fitting holes 2 of the protective cover 200 are provided on the side opposite to the side where the claws 307 of the cylindrical body end support members 305 and 306 are provided.
A protrusion 308 that fits with the cylindrical body end support members 305 and 306 is provided below the protrusion 308 for pushing the cylindrical body end support members 305 and 306 when the protective cover 200 is removed from the pedestal 300. The ends of the cylindrical body end support members 305 and 306 on the side where the claws 307 are provided are fixed to the pedestal 300, and the ends on the side where the projections 308 and the convex portions 309 are provided are fixed to the pedestal 300. do not have. Therefore, the cylindrical body end support members 305 and 306 have spring properties, and when the protrusion 309 is pressed, the protrusion 308 comes off from the fitting hole 203 of the protective cover 200, allowing the protective cover 200 to be removed from the pedestal 300. It's becoming like that.

Reference numeral 350 shown in FIG. 3 is a rotation lock that locks the rotation of the cylindrical body 100 when the protective cover 200 is attached to the pedestal 300, and engagement protrusions 315 that mesh with the gear 105 of the cylindrical body 100 are provided at both ends of this lock. It is being The rotating lock 350 is made of plastic sticks, and is fixed to the base 300 by inserting hooks 314 provided on both sides thereof into the hook holes 312 of the base 300 and hooking them. At this time, since a plurality of small protrusions 313 are provided on the bottom surface of the pedestal 300, the rotation lock 35
0 is attached in a state separated from the bottom surface of the pedestal 300. However, the small protrusion 313 is not provided at the position corresponding to the engagement protrusion 315 of the rotation lock 350. This allows the rotary lock 350 to be attached to the pedestal 3.
00, the engagement protrusion 315 portion of the rotary lock 350 is elastic. Furthermore, 31
0 is a screw insertion portion into which a screw for attaching the pedestal 300 to a wall or ceiling is inserted, and a hole 311 is provided in the rotary lock 350 to correspond to this. As shown in FIG. 4, a small protrusion 317 is provided on the lower surface of the rotary lock 350. This protrusion 317 is for regulating the amplitude of the elastic force of the rotation lock 350 and locking the rotation of the cylindrical body 100 when the protective cover 200 is attached to the base 300. Therefore, the protrusion 317 can rotate the cylindrical body 100 when the protective cover 200 is not attached, and restricts the amplitude of the rotation lock 350 to lock the rotation of the cylindrical body 100 when the protective cover 200 is attached. Its height is lower than the small protrusion 313 of the pedestal 300 so that Therefore, the rotary lock 350 is mounted on the base 30.
0, there is a gap between the protrusion 317 and the base 300.

The rotation lock 350 and the cylindrical body 100 are mounted on the base 300.
When attached to the cylindrical body side support member 30
1, 302, 303, 304 and the cylindrical body end support members 305, 306 support the cylindrical body 100, the pawl 307 engages with the step 106A on the end face of the cylindrical body 100, and the engaging protrusion 315 of the rotation lock 350 Since the cylindrical body 100 meshes with the gear 105, the cylindrical body 100 can be rotated in the circumferential direction without falling off. Rotary stoppers 10 are provided on both end faces of the cylindrical body 100.
7 is provided, and this rotation stopper 107 hits the cylindrical body end face support members 305 and 306, and the cylindrical body 1
It is designed to prevent rotation of 00. The cylindrical body 100 is moved from the rotation stopper 107 to the rotation stopper 1.
It can be rotated 180 degrees between 0 and 7.

Next, the rotational operation of the cylindrical body 100 will be explained using FIGS. 15 to 17.

15 and 16 are diagrams for explaining the state of the rotary lock 350 under the cylindrical body 100 when the protective cover 200 is not attached to the pedestal 300, and FIG. 300 is a diagram for explaining the state of the rotary lock 350 under the cylindrical body 100 when it is attached to the cylindrical body 100. FIG.

As shown in FIGS. 15 and 16, when the protective cover 200 is not attached to the pedestal 300, the protrusion 317 on the lower surface of the rotary lock 350 and the pedestal 300
Because there is a sufficient gap between
rotates. At this time, the cylindrical body end support members 305 and 306 are placed on the step 106A of the end face of the cylindrical body 100.
Since the claws 307 are engaged, the cylindrical body 100 does not lift up, and when the teeth of the gear 105 ride on the meshing projections 315, the rotation lock 350 is pushed down as shown in FIG. but,
Even at this time, since there is a slight gap between the protrusion 317 and the base 300, the cylindrical body 100 can freely rotate without being prevented from rotating. On the other hand, the protective cover 200 has such a shape and size that the protrusions 308 of the cylindrical body end support members 305 and 306 of the pedestal 300 fit together so as to slightly push down the cylindrical body 100 when the protective cover 200 is attached to the pedestal 300. Since the position of the fitting hole 203 is set, as shown in FIG. 17, when the protective cover 200 is attached to the pedestal 300, the cylindrical body 100 is pushed down, and the rotation lock 350 is also pushed down. For this reason, the gap between the protrusion 317 and the pedestal 300 becomes very small, and when the cylindrical body 100 is attempted to rotate, the teeth of the gear 105
15, the protrusion 317 reaches the pedestal 30.
0, rotation is prevented. This prevents the cylindrical body 100 from rotating and the detection area moving after the detection and notification device 1 is installed on a wall, ceiling, etc., so the detection area set at the time of installation is maintained, and the detection and notification device 1 is Reliability can be increased.

As shown in FIG. 5, the cylindrical body 100 can be divided into an upper cylindrical body 101 and a lower cylindrical body 102. As shown in FIG. Mounting hooks 111 are provided at both ends of the upper cylindrical body 101, and by hooking these into the hook holes 110 of the lower cylindrical body 102, the upper cylindrical body 101 is attached to the lower cylindrical body. 102. A far-infrared radiator detection and notification circuit device (hereinafter simply referred to as a circuit device) 150 is installed in the lower cylindrical body 102 . 151 is a sensor for detecting far infrared rays, and 152 is a detection lamp consisting of a light emitting diode. Reference numeral 153 denotes a battery box into which AA batteries are loaded, and there are two of them. Electrodes 15 are provided at both ends of each battery box 153.
4 is provided, and the sensor circuit of the circuit device 150 and its output are used to supply power to a transmitter that notifies far-infrared detection. Note that when connecting the circuit device 150 and the receiver by wiring instead of wirelessly, punch out the wiring knock-out part 108 on the end face of the cylindrical body 100 to make a hole, and connect this hole to the pedestal 300 ( The wiring from the receiver is inserted into the cylindrical body 100 through the wiring hole 316 shown in FIG. 3). As shown in FIG. 6, the circuit device 150 can be removed from the lower tubular body 102. On both sides of the circuit device 150,
Lateral direction detection area adjustment projections (hereinafter referred to as area adjustment projections) 157 and guide projections 158 are provided, and these area adjustment projections 157 and guide projections 1
A circuit device support portion 112 is provided on the lower cylindrical body 102 in correspondence with 58 . battery box 153
Below, a printed circuit board 155 is installed in which a sensor circuit for detecting far-infrared rays and a transmitter for notifying the detection of far-infrared rays using the output from the sensor circuit are fixed by board hooks 156. There is. The board hook 156, area adjustment protrusion 157 and guide protrusion 158 are connected to the battery box 1.
53 and are made of plastic. However, the battery box 153 has no bottom plate and is open.
Then, in order to prevent the printed circuit board 155 below from being seen through the opening, the battery box 15 is
A masking sheet 121 made of polyester is provided at the opening at the bottom of 3.

FIG. 7 shows an enlarged view of the area adjustment protrusion 157 and guide protrusion 158 of the circuit device 150, and FIG. 8 shows an enlarged view of the circuit device support portion 112 of the lower cylindrical body 102. .

The guide projection 158 of the circuit device 150 has a shape as shown in FIG. 7, and a guide groove 113 is provided in the lower cylindrical body 102 as shown in FIG. 8 to fit therewith. . 114 is a circuit device support table on which the bottom surface of the guide protrusion 158 of the circuit device 150 rests. The area adjustment protrusion 157 of the circuit device 150 has a shape as shown in FIG.
An area adjustment protrusion receiving portion 115 consisting of a plurality of grooves that engages with the area adjustment protrusion 157 is provided. The inner diameter of the lower cylindrical body 102 in the direction perpendicular to the direction (longitudinal direction) of the rotation axis of the cylindrical body 100 is large enough to accommodate the circuit device 150, so the circuit device 150 can be inserted into the lower tube. When pushed into the shaped body 102, the guide protrusion 158 of the circuit device 150 fits into the guide groove 113, and the area adjustment protrusion 1
57 is engaged with the groove of the area adjustment protrusion receiving portion 115. This prevents the circuit device 150 from easily coming off the lower cylindrical body 102 or moving carelessly in the direction of the rotation axis. The length of the lower cylindrical body 102 in the direction of the rotation axis (longitudinal direction) is equal to the length of the circuit device 15.
0, the position of the circuit device 150 within the lower cylindrical body 102 can be changed by pushing the circuit device 150 in the direction of the rotation axis.
Thereby, the position of the sensor 151 in the direction of the rotation axis of the cylindrical body 100 changes, and the detection area of the detection and notification device 1 can be moved. At this time, the area adjustment protrusion 157 and the groove of the area adjustment protrusion receiving part 115 are engaged with each other, so the circuit device 150 moves while changing the amount of movement, and when you stop pressing the circuit device 150, it becomes cylindrical. body 10
The position of circuit arrangement 150 in 0 is fixed.

Since the area adjustment protrusion 157 and the area adjustment protrusion receiving portion 115 are made of plastic stick, their shapes can be formed with high precision. Further, since it is made of plastic stick which is harder than the printed circuit board 155, the peaks of the area adjustment protrusion 157 and the area adjustment protrusion receiving portion 115 will not chip when the circuit device 150 is moved. From these facts, the sensor 151 inside the cylindrical body 100
Since the position of the detection and notification device 1 can be determined with high precision, the reliability of the detection and notification device 1 can be improved.

Next, FIG. 9 shows a perspective view of the circuit device 150 viewed from below.

As shown in FIG. 9, the antenna 160 of the circuit device 150 is attached to an antenna support member 159 fixed perpendicularly to the printed circuit board 155 so as to be substantially parallel to the printed circuit board 155 and weighed. There is. Therefore, the antenna 160 can be placed in the empty space between the printed circuit board 155 and the lower cylindrical body 102.
0 can be made smaller. The antenna support member 159 is made of the same material as the printed circuit board 155.

Next, the structure of the Fresnel lens and the portion of the upper cylindrical body 101 to which the Fresnel lens is attached will be described with reference to FIGS. 10 to 13.

FIG. 10 is an enlarged perspective view of the Fresnel lens 109, FIG. 11 is a perspective view of the upper cylindrical body 101 seen from above with the Fresnel lens removed, and FIG. 12 is an enlarged perspective view of the upper cylindrical body 101. FIG. 13 is a plan view of the upper cylindrical body 10 shown in FIG. 12 when viewed from below.
FIG. 1 is a sectional view taken along the - section line of FIG.

As shown in FIG. 10, Fresnel lens 109
is six lenses 109A, 109B, 109C,
It consists of 109D, 109E, and 109F.
The upper surface of the Fresnel lens 109 has protrusions 1 along the four sides of the square Fresnel lens 109.
16 are integrally formed. Of the protrusions 116, the protrusions 116A on two sides of the Fresnel lens 109 are used to attach the Fresnel lens 109 to the upper cylindrical body 101, and the protrusions 116A on the remaining two sides
B is not used for mounting the Fresnel lens 109. As shown in FIGS. 11 to 13, a Fresnel lens 1 is attached to the upper cylindrical body 101.
A lens support beam 117 is provided to support the lens support beam 117 and the upper cylindrical body 1.
01 is provided with a lens insertion hole 118 for inserting the side portion of the Fresnel lens 109. The Fresnel lens 109 is provided on the inner surface of the upper cylindrical body 101 along the lens insertion hole 118.
A lens fixing hook 119 is provided on which the protrusion 116A of the lens is hooked. However, the lens fixing hook 119 is cut off at the end portion 118A of the lens insertion hole 118.

Since the Fresnel lens 109 is made of polyethylene, when the Fresnel lens 109 is bent by hand and both sides thereof are inserted into the lens insertion hole 118, an elastic force is generated that tries to return the bending, and this elastic force causes the protrusion to 116 hangs firmly on the lens fixing hook 119, the Fresnel lens 109 can be reliably attached to the upper cylindrical body 101 and will not come off easily.

In addition, since a large claw or the like is not provided on the side of the Fresnel lens 109, the Fresnel lens 109
When forming the lens 9, the polyethylene flows well into the mold for forming it, so that a well-proportioned Fresnel lens 109 with very little distortion can be formed.

Next, using FIG. 18 and FIG. 19, it will be explained that the direction of the detection area of the detection and notification device 1 of this embodiment can be adjusted.

FIG. 18 is a diagram for explaining that the direction of the detection area can be changed by rotating the cylindrical body 100 of the detection and notification device 1 around the rotation axis, and FIG. 19 is a diagram showing the lower side of the detection and notification device 1. Cylindrical body 10
2 is a diagram for explaining that the detection area can be moved in the direction of the rotation axis of the cylindrical body 100 by changing the position of the circuit device 150 in FIG.

In FIG. 18, 2 is a detection area, and one detection area 2 corresponds to one lens among the six lenses 109A to 109F that constitute the Fresnel lens 109. Before attaching the protective cover 200, by rotating the cylindrical body 100, as shown in FIG.
You can change the degree. If the protective cover 200 is attached after adjusting the orientation, the rotation of the cylindrical body 100 is locked.

Further, the circuit device 150 inside the lower cylindrical body 102
By moving the detection area 2, the detection area 2 can be moved in the direction of the rotation axis of the cylindrical body 100, as shown in FIG. By shifting the groove of the area adjustment protrusion receiving portion 115 (Fig. 8) into which the detection area adjustment protrusion 157 (Fig. 7) fits by one position, each detection area 2 can be moved 20 cm from 5 m ahead.

Note that, for example, the detection and alarm device 1
In order to prevent malfunctions, for example, if it is desired to make the edge detection area an insensitive area, a blinding sheet 120 made of polyester is provided under the Fresnel lens 109, as shown in FIG. Both ends of the blindfold sheet 120 are inserted into the lens insertion hole 118 and engaged with the inside of the upper cylindrical body 101.

FIG. 14 is a plan view of the upper cylindrical body 101 equipped with the blindfold sheet 120. Note that the Fresnel lens 109 is not shown.

As can be seen from the above description, the detection and notification device 1 of this embodiment can provide the following effects.

(1) A gear 105 coaxial with the cylindrical body 100 is provided at the end of the cylindrical body 100, and the cylindrical body 100
Cylindrical body side support members 301 to 30 that support the side surfaces of the cylindrical body 100 on the pedestal 300 on which the cylindrical body 100 is mounted.
4, and a gear 10 at the end of the cylindrical body 100.
The pedestal 300 is provided with cylindrical body end support members 305 and 306 corresponding to the position No. 5, and a circular shallow stepped portion 106 is provided on the end surface of the cylindrical body 100 and is concentric with the end surface. Since claws 307 that engage with the step 106A of the portion 106 are provided on the cylindrical body end support members 305 and 306, the far infrared ray emitter detection and notification device 1 is small and can freely adjust the direction of the detection area. can be obtained.

(2) Since the cylindrical body 100 is prevented from rotating when the protective cover 200 is attached to the base 300, the cylindrical body 100 rotates and the detection area 2
Since the detection area 2 does not move, the detection area 2 set at the time of installation is maintained, and a highly reliable detection and notification device 1 can be obtained.

(3) A sensor circuit that detects far infrared rays emitted from people, cars, etc., and a transmitter that notifies the detection of far infrared rays by the output of the sensor circuit are provided on the printed circuit board 155.
is fixed to a battery box 153, and the battery box 153 is provided in a cylindrical body 100.
00 is provided with supporting parts 113 and 114 that support the battery box 153 movably in the longitudinal direction of the cylindrical body 100, and the battery box 15
Detection area adjustment protrusion 1 that engraves the amount of movement of it in 3
57 and the area adjustment protrusion receiving part 115 that engages with the detection area adjustment protrusion 157 is provided on the cylindrical body 100.
5 is made of plastic that is harder than the printed circuit board 155 and has better processing precision, the shape and dimensions of the area adjustment protrusion 157 and the area adjustment protrusion receiving portion 115 can be formed with high accuracy, and the circuit device 150 can be moved easily. The area adjustment protrusion 157 and the area adjustment protrusion receiving part 11 prevent the peaks of the area adjustment protrusion 157 and the area adjustment protrusion receiving part 115 from chipping when
You can get 5. For these reasons, the position of the sensor 151 in the cylindrical body 100 can be adjusted accurately, so the orientation of the detection area 2 can be accurately oriented, and a highly reliable detection and notification device 1 can be obtained.

(4) Protrusion 116 around Fresnel lens 109
is provided, and the protrusion 116 is provided on the upper cylindrical body 101.
A lens fixing hook 119 that engages with the upper cylindrical body 101 is provided to attach the Fresnel lens 109 to the upper cylindrical body 101.
By attaching the lens to the lens, the Fresnel lens 109 becomes a square without large claws on the sides, so when forming the Fresnel lens 109, the polyethylene flows well into the mold for forming it. A well-balanced Fresnel lens 109 with very little distortion can be obtained. Thereby, the accuracy of the range and orientation of the detection area 2 can be improved.

Although the present invention has been specifically explained above based on the embodiments, it goes without saying that the present invention is not limited to the above embodiments and can be modified in various ways without departing from the gist thereof.

For example, as shown in FIG. 12A, the cylindrical body 10
In order to discharge water droplets that have entered the inside, a protrusion 130 for guiding water droplet discharge is provided on the inner surface of the upper cylindrical body 101.
A, 130B may be provided.

FIG. 12A shows a protrusion 130 for guiding water droplet discharge.
It is a top view when the upper side cylindrical body 101 provided with A and 130B is seen from below.

When the detection alarm device is installed vertically on the wall,
That is, one gear 105 is on the top and the other gear 1 is on the top.
05 is at the bottom, water droplets tend to enter the detection and alarm device 1 through the gap between the recess 201 of the protective cover 200 and the protrusion 309 of the pedestal 300 that enters the recess 201. The water droplets then flow into the cylindrical body from the hole between the stepped portion 106 and the knockout portion 108 on the end surface of the cylindrical body 100 and the gap 132 between the gear 105 and the upper cylindrical body 101.
It is easy to fall into 00. Therefore, as shown in FIG. 2, a rib (protrusion) 131 is provided on the stepped portion 106 at the end of the cylindrical body 100, and the cylindrical body 100 is inserted through the hole between the stepped portion 106 and the knockout portion 108.
Prevents water droplets from getting inside. Also, a gap 132 between the gear 105 and the upper cylindrical body 101
The water droplets that entered the cylindrical body 100 from the 12th A
Water droplet discharge guide projections 130A and 130 shown in the figure
The water droplets guided to the edge of the upper cylindrical body 101 at B, and flowing through this edge to the lower water drop guide protrusions 130A and 130B are discharged from the holes around the lower knockout part 108.

[Effect of idea]

A brief explanation of the effects of typical devices among the devices disclosed in this application is as follows.

The cylindrical body is provided with a support part that supports the battery box movably in the longitudinal direction of the cylindrical body, the battery box is provided with a detection area adjustment protrusion that measures the amount of movement of the battery box, By providing the area adjustment protrusion receiver that meshes with the detection area adjustment protrusion, the area adjustment protrusion and the area adjustment protrusion receiver are made of plastic that is harder than the printed circuit board and has better processing precision. The shape and dimensions of the area adjustment protrusion receiver can be formed with high precision, and the area adjustment protrusion and area adjustment protrusion receiver can be prevented from chipping when the circuit device is moved. You can get a portion. For these reasons, the position of the sensor in the cylindrical body can be adjusted accurately, so the orientation of the detection area can be accurately oriented, and a highly reliable detection and notification device can be obtained.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a far-infrared ray emitter detection and notification device according to an embodiment of the present invention, and FIG. 2 is a perspective view of the far-infrared radiator detection and notification device shown in FIG. 1 with the cover removed. , FIG. 3 is a perspective view of the pedestal of the far-infrared emitter detection and notification device shown in FIG. 1, and FIG. 4 is a perspective view of the rotary lock of the far-infrared radiation detection and notification device shown in FIG. Fig. 5 is a perspective view of the cylindrical body of the far-infrared emitter detection and alarm device shown in Fig. 1, and Fig. 6 is a view of the circuit device inside the cylindrical body shown in Fig. 5 taken out. The perspective view at the time, Figure 7, is
FIG. 6 is an enlarged perspective view of the area adjustment projection and guide projection of the circuit device shown in FIG. 6, and FIG. 8 is an enlarged perspective view of the circuit device support portion of the lower cylindrical body shown in FIG. FIG. 9 is a perspective view of the circuit device shown in FIG. 6 viewed from below, and FIG.
FIG. 1 is an enlarged perspective view of the Fresnel lens of the far-infrared radiator shown in FIG. 1, and FIG. 11 is a perspective view of the upper cylindrical body of the far-infrared radiator shown in FIG. 1 when viewed from above with the Fresnel lens removed. , FIG. 12 is a plan view of the upper cylindrical body shown in FIG. 11 when viewed from below;
FIG. 12A is a plan view of the upper cylindrical body provided with the water droplet discharge protrusion as seen from below; FIG. 13 is a sectional view taken along the - cutting line of the upper cylindrical body shown in FIG. 12; FIG. 14 is a plan view when the blindfold sheet 120 is attached to the upper cylindrical body 101 in FIG. 11, and FIGS. 15 and 16 show the cover of the far infrared ray emitter in FIG. 1 not attached to the pedestal. FIG. 17 is a diagram for explaining the state of the rotary lock under the cylindrical body when the cover of the far infrared ray emitter of FIG. 1 is mounted on the pedestal. A diagram for explaining the state, FIG. 18, is the first
FIG. 19 is a diagram for explaining that the direction of the detection area can be changed by rotating the cylindrical body of the detection and notification device shown in the figure around the rotation axis. FIG. 6 is a diagram for explaining that the detection area can be moved in the direction of the rotation axis of the cylindrical body by changing the position of the circuit device in the lower cylindrical body. In the figure, 1... Detection alarm device, 100... Cylindrical body, 103, 104... Shallow groove, 105... Gear, 106... Step portion, 106A... Step, 11
3... Guide groove, 114... Support table, 11
5...Area adjustment protrusion receiving part, 153...Battery box, 157...Detection area adjustment protrusion, 158
... Guide protrusion, 200 ... Cover, 203 ...
Fitting hole, 300...Pedestal, 301-304...Side support member, 305, 306...End support member,
307...Claw, 308...Protrusion, 309...Protrusion, 312...Hook hole, 313...Small protrusion, 3
14... Hook, 315... Engaging projection, 317...
...Protrusion, 350...Rotation lock.

Claims (1)

[Scope of utility model registration request] A sensor circuit for detecting far infrared rays emitted from a person, a car, etc. and a transmitter for notifying the detection of far infrared rays by the output of the sensor circuit are provided on a printed circuit board, and the printed circuit board is fixed to a battery box, A far-infrared emitter detection and alarm device in which the battery box is provided in a cylindrical body, wherein the cylindrical body is provided with a support portion that supports the battery box so as to be movable in the longitudinal direction of the cylindrical body. , a far-infrared radiator detection alarm characterized in that the battery box is provided with a detection area adjustment protrusion that measures the amount of movement thereof, and the cylindrical body is provided with an area adjustment protrusion receiving part that engages with the detection area adjustment protrusion. Device.