JPH0644515B2 - Recessed dimmer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to an embedded dimmer that can be used by being attached to a wiring box embedded in a wall surface or the like.

(Prior Art) Conventionally, this type of dimmer requires a special structure for the purpose of dissipating the heat generated inside, as disclosed in, for example, JP-A-55-3670. , A dedicated mounting frame was attached for mounting on a wiring box or the like. Also, the size of the case is generally large. Therefore, it is not possible to actually use it in combination with a general-purpose continuous wiring device, and it is impossible.

On the other hand, the so-called large boss type as continuous wiring equipment,
For example, it is already known as seen in Japanese Utility Model Publication No. 50-125797.

However, it was found that there was a technical problem when trying to make the embedded dimmer into a large boss type continuous wiring device. That is, since this type of dimmer changes the dimming degree by the variable resistor, it is necessary to dispose the variable resistor in the center of the case in order to dispose the operation part in the center of the boss. In addition, it is necessary to facilitate the assembly of the entire dimmer including the assembly of the operating portion that is rotated during use. However, even if the case of the conventional dimmer such as the one disclosed in Japanese Patent Laid-Open No. 55-3670 is simply downsized, no consideration is given to the assembly as well as the mounting of parts for downsizing, so that a variable resistor or the like is mounted. In addition to the difficulty of assembling the dimmer, it becomes difficult to assemble the dimmer, and there is a limit to miniaturization.

(Problems to be Solved by the Invention) In the present invention, the embedded dimmer is configured to have the same mounting size as the continuous wiring device, and the dimmers are combined with each other as well as with a general-purpose continuous wiring device. It is an embedded type that allows it to flexibly meet a variety of wiring needs, and that despite its small size, the operating part can be located in the center of the boss part, and that it is easy to assemble and can be downsized. It is intended to provide a dimmer.

[Advantages of the Invention] (Means for Solving Problems) The present invention has a pair of mounting holes and a pair of plate mounting screw holes that can be mounted in an embedding box at both ends, and has an elongated middle portion. It has an instrument mounting window hole and can be selectively attached to a continuous mounting frame comprising three sets of instrument fixing means in the instrument mounting window hole, and in combination with a flash plate attached to the mounting screw hole. It is a format used and is characterized by further having the following configuration. That is, both sides of the upper surface in the long side direction are in contact with the back surface of the continuous mounting frame, and the dimension in the short side direction is formed to be approximately 1/3 of the longitudinal direction of the instrument mounting window hole. A case comprising a body having a boss portion protruding in the vertical direction and having an open upper surface, and a cover which is covered with the upper surface of the body and has a through hole formed in the central portion of the boss portion. A dimmer main body, which is provided with a printed wiring board, a variable resistor disposed on the board, a rotary shaft protruding upward, a thyristor, other circuit parts, and a terminal device, and inserted into the body. The lower end of the dimmer body is fitted with the rotary shaft and has a flange portion formed at a lower end thereof in a size that does not allow the through hole of the cover to be inserted, and is inserted through the cover and protrudes upward from a boss portion. A rotary knob that controls operation. Attachment means for fixing the case to the continuous attachment frame in cooperation with the attachment means for the continuous attachment frame.

(Operation) In the present invention, the variable resistor, the thyristor, and other circuit components having the rotary shaft protruding upward are mounted on the printed wiring board, and the terminal device is mounted, and the terminal device is inserted into the body having the above-mentioned configuration. If the rotary knob is fitted to the rotary shaft of the variable resistor, and if the cover with the above configuration is covered with the body,
Can be assembled. Since the flange portion of the rotary knob cannot be inserted through the through hole of the cover, the rotary knob is prevented from falling off during use. To embed the dimmer on the wall surface, attach it to a continuous equipment mounting frame that allows general-purpose use, then attach the mounting frame to the wiring box, and install a flash plate that allows general-purpose use. Just attach it to the mounting frame. Then, the dimmer of the present invention can be mounted on the wall like a continuous wiring device. Up to 3
Individual dimmers can be connected in series. In addition, the dimmer can be installed in combination with a continuous wiring device, if necessary.

(Embodiment) FIGS. 1 and 2 show an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes an embedded dimmer of the present invention, which is a case 2, a dimmer body 3 housed in the case, and a terminal device arranged to be biased to one side in the long side direction of the case 2. 19, a rotary knob 4 for controlling the operation of the main body 3, and a mounting means 6 for fixing the case 2 to a continuous instrument mounting frame 5 shown in FIG. The equipment mounting frame 5 has a pair of mounting holes 7 having a mounting pitch capable of mounting on a wiring box (not shown) embedded in the wall surface and a pair of plate mounting screw holes 8 at both ends. With
It is allowed to be a general-purpose type having an elongated instrument mounting window hole 9 in the middle portion and three sets of instrument fixing means 10 arranged in the window hole 9.

The case 2 of the dimmer 1 is covered with the body 12 and the body 12 whose dimension in the short side direction is approximately ⅓ of the longitudinal direction of the appliance mounting window 9 and whose upper surface is open. And a cover 15. A boss portion 13 having a through hole formed in the central portion is formed in the central portion of the upper surface of the cover 15.

The dimmer body 3 is a light source (not shown) that is a load.
The thyristor 1 is mounted on the printed wiring board 16 by a circuit structure body in which required circuit components for dimming the light are mounted.
7. A variable resistor 18 having a rotary shaft protruding upward and other circuit components and a terminal device 19 are mounted to form, for example, a phase control circuit. The terminal device 19 functions so that the dimmer of the present invention is connected in series between a power source and a load (not shown).

The attachment means 6 is used for attaching the dimmer 1 to the attachment frame 5 in cooperation with the instrument fixing means 10 of the continuous instrument attachment frame 5. In this embodiment, the body 12 and the cover 15
Although the mounting means 6 is configured by the frame-shaped portion integrally formed with the coupling fitting 20 that couples with, the invention is not limited to this.

Although various known means can be used as the device fixing means 10, in the third illustrated embodiment, a protrusion 21 that engages with the device attaching means 6 of the dimmer 1 and a protrusion 21 adjacent to the protrusion 21. It is composed of a caulking operation unit 22. In this case, the caulking operation unit 22 on one side of the means of each set may be omitted.

To assemble the dimmer of the present invention, the dimmer body 3 is inserted into the body 12, and then the rotary knob 4 is fitted to the rotary shaft.
Further, the cover 15 may be covered on the upper surface of the body 12, and finally, the body 12 and the cover 15 may be joined by the fitting 20. The flange portion of the rotary knob 4 is prevented from being inserted by the inner wall surface around the through hole of the cover 15, and thus does not come off.

FIGS. 4 to 6 explain an example of usage of the dimmer of the present invention. That is, in FIG. 4, two dimmers 1 and 1 are mounted on the mounting frame at intervals of one, and the boss holes 23 and 23 of the flash plate 24 to the boss portions 13 and 13 are respectively arranged. It is protruding. In Figure 5,
One dimmer 1 of the present invention is connected to two switches 25, 25 and is used by sharing one boss hole 23 '. In FIG. 6, one dimmer of the present invention is attached to the central boss hole 23 ″ of the flash plate 24 ″.

[Effects of the Invention] The present invention is configured as described above in detail, and in particular, the dimension of the case in the short side direction is formed to be approximately ⅓ in the long side direction of the elongated instrument mounting window hole of the continuous mounting frame, This case is composed of a body with an open upper surface and a cover with a through hole formed in the center of the boss, and a variable resistor, a thyristor and other circuit parts with a rotary shaft protruding upward on the printed wiring board. Insert the dimmer body configured by mounting the terminal device into the body, then fit the rotary knob on the rotary shaft, and
Since it suffices to cover the cover and finally fix it to the continuous mounting frame with the mounting means, the dimmer can be easily assembled while being downsized, and the rotary knob does not fall off during use. In addition, a maximum of three devices can be attached to one device mounting frame and can be used alone or in combination with continuous wiring devices. Further, despite the small size, the layout of the circuit parts is facilitated, so that it becomes easy to arrange the operation part in the central part of the boss part.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 and FIG. 2 are perspective views and enlarged exploded perspective views, FIG. 3 is a perspective view showing a state of being attached to a mounting frame, and FIGS. It is a front view which shows a use condition. DESCRIPTION OF SYMBOLS 1 ... Dimmer, 2 ... Case, 3 ... Dimmer body, 4 ... Rotating knob, 5 ... Instrument attachment frame, 6 ... Attachment means, 7 ... Attachment hole, 8 ... Plate attachment screw hole, 9 ... Instrument attachment Window holes, 10 ... Instrument fixing means, 13 ... Boss portion, 19 ... Terminal device, 24 ... Flash plate.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-56-50087 (JP, A) JP-A-57-123689 (JP, A) JP-A-59-44706 (JP, A) Actual development Sho-50- 125797 (JP, U) Actually opened 56-131700 (JP, U) Actually opened 55-178994 (JP, U) Actually opened 52-101174 (JP, U) Actually opened 55-178993 (JP, U) Actual Public Sho-40-10697 (JP, Y1) Actual Public Sho-57-34697 (JP, Y2)

Claims (1)

[Claims] 1. A pair of holes that can be attached to an embedded box and a pair of screw holes for plate attachment are provided at both ends, and an elongated instrument mounting window hole is provided in the middle portion. A type which can be selectively mounted on a continuous mounting frame provided with a pair of instrument fixing means, and which is used in combination with a flash plate mounted in the plate mounting screw hole; Both sides of the upper surface abut the rear surface of the continuous mounting frame,
In addition, the dimension in the short side direction is formed to be approximately ⅓ of the longitudinal direction of the instrument mounting window, and the boss portion that protrudes in the height direction at the center of the upper surface and has a through hole formed in the center A case having a body having an open upper surface and a cover formed on the upper surface of the body and having the boss portion formed thereon; a case housed in the case; A dimmer body, which is provided with a variable resistor, a thyristor, and other circuit parts projecting upward from the rotary shaft and a terminal device, and which is inserted into the body; and fitted to the rotary shaft. A rotary knob having a lower end formed with a size that does not allow the through hole of the cover to be inserted, and a rotary knob that is inserted into the through hole of the cover from inside the cover and projects upward from the boss; The case is used continuously in cooperation with the fixing means. Embedded form dimmer, characterized in that it comprises a; and attachment means for securing the attaching frame.