JPH0417005Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention relates to an electric mosquito repellent.

Conventional technology and its problems Various types of electric mosquito repellents have been proposed that are equipped with a lamp to indicate use, but in the conventional type, the lamp is simply turned on at one point. Moreover, the brightness of this kind of lamp is
Since it is set small so as not to disturb sleep, it is somewhat difficult to confirm the position of the electric heating part even with the light of such a lamp.
It was inconvenient to replace mats, etc. In this case, it would be convenient to install lamps to surround the electric heating part because it would make it easier to confirm the position of the electric heating part, but this would be undesirable as it would increase the cost of installing the lamps and increase the product cost. .

The present invention was made with the aim of eliminating these conventional problems.

Means for Solving the Problems The present invention provides an electric mosquito repellent that has a heating section in the center of the top surface of the device body, with the upper end surrounding the heating section. A light-transmitting ring exposed on the upper surface and a point light source for irradiating a light beam onto the light-receiving surface of the ring; The present invention relates to an electric mosquito repellent characterized by being provided with a light scattering part.

Embodiment An embodiment of the present invention will be described below based on the accompanying drawings.

Fig. 1 shows the whole electric mosquito repellent according to the present invention, which consists of a main body 1, a cord reel 2 rotatably installed in the center of the main body 1 (see Fig. 2) , an electric heating part 3 installed on the upper surface of the reel 2, and an electric cord 4 with a plug 4a wound around the lower part of the reel 2, the reel 2
A light-transmitting ring 5 is fitted and fixed on the outside of the body of the cylindrical protective cover 3a (see Fig. 2) of the electric heating unit 3, which is connected and fixed to the upper end. It is almost flush with the upper end of 1.

The light-transmitting ring 5 has a cross-sectional shape as shown in FIG. 4, and each corner portion 5a constitutes a light-scattering portion. Such a light scattering portion may be formed by roughening a smooth surface and further cutting a V-groove.

As is clear from FIGS. 2 and 3, which show the main body 1 with the top lid 1a removed, a recess 6 is provided in a part of the lower part of the light-transmitting ring 5. A point light source 7 that is turned on is housed.

As the point light source 7, various known light sources used as indicator lamps of electric mosquito repellents can be used, and for example, neon lamps are suitable.

A light scattering section 9 is provided on the light receiving surface 8 at the lower end of the light transmitting ring 5, which is irradiated with light from the point light source 7.

The light scattering part 9 is for making a part of the light rays emitted from the light source 7 enter the transparent ring 5 in the ring length direction, and is shown in the figure as a V-shaped concave surface 9a.
The rough surface portions 9b formed on each of the inclined surfaces of the concave surface 9a are formed of, for example, sawtooth-like unevenness. By forming the light scattering portion 9 from the V-shaped concave surface 9a and the rough surface portions 9b formed on each of its inclined surfaces in this manner, the irradiation light beam can be distributed into the ring 5 in two directions and allowed to proceed.

In order to efficiently irradiate the light beam from the point light source 7 onto the light receiving surface 8 at the lower end of the light transmitting ring 5, a light shielding/reflecting plate 10 can be provided on the outside of the light source 7. Further, it is preferable that the mounting surface of the light source 7 and the body of the protective cover 3a have light reflective properties.

Now, as shown in the action explanatory diagram of FIG. 5, when a light beam is irradiated from the point light source 7 onto the light receiving surface 8 at the lower end of the light transmitting ring 5, the irradiated light beam is scattered by the light scattering part 9 formed on the light receiving surface 8. A part of the scattered light passes through the transparent ring 5 in the longitudinal direction, and during this progress, it is reflected and scattered at the corner 5a of the ring 5 (see FIG. It is radiated to the outside from the corner portion 5a. Therefore, the ring 5 emits light over its entire length and functions as a secondary light source.

If the ring 5 has the same cross section over its entire length, the amount of light emitted from the ring 5 to the outside decreases as it leaves the light receiving surface 8. In order to prevent such a decrease in the amount of emitted light, as shown in FIG. 3, a slope 5b ( (see Figure 3).

The ring 5 may be made of any material as long as it has translucency, and is usually made of plastic or glass.

It is sufficient that at least one point light source 7 is provided, but in some cases, the point light source 7 may be provided at about 2 to 4 locations at equal intervals.

In this invention, as usual, the cord reel 2 is
A spring (not shown) can be provided for automatically rewinding the electrical cord 4. In this case, the cord reel 2 needs to be equipped with a restraining and releasing mechanism 11 that can restrain the electrical cord 4 at any desired withdrawal position and release the restrained state by using the withdrawal operation of the cord 4 as a key.

An example of a preferable structure of the restraint/release mechanism 11 and its function will be explained as follows based on FIGS. 6a to 6i.

As shown in FIG. 6, the restraint release mechanism 11 includes a pin 12 fixedly attached to a portion of the upper surface of the reel 2 near the periphery, and a lever that is freely inserted into and supported by the pin 12 in a long hole 13a. 13 and the lever 1
3 with the pin 12 as a fulcrum, the pin 2 is inserted into the elongated hole 1.
3a includes a spring 14 as a component that biases rotation counterclockwise when it is on the rear end side (right side in FIG. 6a) and clockwise when it is on the front end side. , a U-shaped leaf spring is shown in the figure. As the spring 14, one having a weaker spring force than the rewinding spring (not shown) of the reel 2 is used.

The lever 13 has a front stopper 1 protruding forward at its front end with reference to the rotating direction of the reel 2 (clockwise in FIG. 6a) when the cord 4 is drawn out.
3b, a claw portion 13c projecting rearward at the rear end, and a triangular side stopper 13d projecting outward at the middle portion, and the rear inclined surface _13d1 of the side stopper 13d is It extends linearly to the outer side of the claw portion 13c and forms an inclined guide side 13e, and the inclined guide side 13e and the elongated hole 13a are substantially parallel.

As shown in FIG. 6a, when the cord 4 starts to be pulled out, the pin 12 is located at the rear end side (on the right side in the figure) of the elongated hole 13a, and the lever 13 is moved by the spring 1.
4, it is urged to rotate counterclockwise as shown by arrow a in the figure. Further, the front stopper 13b of the lever 13 presses the spring 14 against the inside of an external stopper 15 fixed to the outer peripheral edge of the reel 2, and the lever 13 is moved to the illustrated state by the action of this stopper 13b. The side stopper 13d protrudes outward from the reel 2, and the rear claw portion 13c maintains a state in which it is substantially recessed into the reel 2.

In the state shown in FIG. 6a, when the cord 4 is pulled out and the reel 2 is rotated clockwise as shown by the arrow b in the figure, during this rotation, The side stopper 13d of the lever 13 comes into contact with the rear end of the locking piece 16 fixed to the main body ₁ , as shown in FIG. 6b, at the front inclined surface 13d2. Therefore, as the reel 2 rotates, the lever 13 is pushed rearward via the side stopper 13d, and as a result, the pin 1
2 moves inside the elongated hole 13a from the rear end side toward the front end side, and as this movement moves, the side stopper 13
d gradually sinks into reel 2.

When the pin 2 moves toward the front end of the elongated hole 13a, the lever 13 is biased by the spring 14 to rotate clockwise in the opposite direction to that shown in FIG. 6a. Side stopper 1
3d is released from the locking piece 16, the lever 13
is immediately rotated clockwise by the action of the spring 14, and the rear claw portion 13c protrudes outward from the reel 2 in place of the side stopper 13d, as shown in FIG. 6c. At this time, the front stopper 13b of the lever 13 is replaced by an internal stopper 17 fixed on the reel 2.
By the action of this stopper 13b, the lever 13 is maintained in the state shown in FIG. 6c.

When the reel 2 is further rotated clockwise from the state shown in FIG. 6c, the lever 13 is moved as the inclined guide side 13e passes inside the locking piece 16 as shown in FIG. 6d. , with pin 2 as the fulcrum,
It rotates counterclockwise against the spring 14, and when the inclined guide side 13e passes inside the locking piece 16,
The action of the spring 14 immediately restores the state shown in FIG.
You will be able to withdraw freely.

After pulling out the required length of the cord 4, when the cord 4 is released from the pulling force, the reel 2 rotates in the opposite direction due to the action of a rewinding spring (not shown).
Therefore, as shown in FIG. 6f, the claw portion 13c is locked to the locking piece 16, and due to the difference in spring force between the rewinding spring and the spring 14, the lever 13 is held in the locked state. is pushed forward against the spring 14, and the pin 2 moves to the rear end side of the elongated hole 13a as shown in FIG. 6g. In this state shown in FIG. 6g, the rotation of the reel 2 by the unwinding spring is stopped, and the cord 4 is therefore restrained at an arbitrary drawing position. In the state shown in Fig. 6g, pin 2
Since the lever 13 is located at the rear end side of the elongated hole 13a, the lever 13 is urged to rotate counterclockwise by the spring 14.

When the cord 4 is pulled out and the reel 2 is rotated clockwise in the state shown in FIG. 6g, the claw portion 13c of the lever 13 is released from the locking piece 16.
Therefore, the lever 13 is rotated counterclockwise by the action of the spring 14, and returns to the state at the start of the withdrawal operation, as shown in FIG. 6h. After returning to the state shown in Fig. 6h, the lever 1 is moved as shown in Fig. 6i.
3 rotates clockwise against the spring 14, that is, in a direction in which the side stopper 13d retracts into the reel 2, and freely passes through the locking piece 16, allowing the cord 4 to be rewound. After finishing rewinding code 4, return to FIG. 6a and prepare for the next operation.

Various structures have been proposed for restraining and releasing mechanisms for the cord 4, but compared to known structures, the one of the present invention has fewer components and each component is simpler in shape. This can contribute to lower product costs.

In the present invention, for the purpose of making the product more compact during packaging and storage, a plug storage and holding section as shown in FIGS. 18 can be provided.

The storage holding part 18 is a storage recess 18a of the plug 4a formed approximately at the center of the lower surface of the lower lid 1b.
, a storage groove 18b for storing the electric cord 4 connected to the proximal end side of the recess 18a, and two inserts 4a ₁ and 4a ₁ for insertion connected to the distal end side of the recess 18a. Parallel insertion grooves 18c, 18c and the insertion groove 1
The insert 4a ₁ connected to the tips of 8c and 18c,
_4a1 Consists of insertion holes 18d, 18d at the tip. The length of the storage recess 18a is the length of the insertion piece 4.
In order to facilitate insertion and removal of the tip end into the insertion hole 18d, the length is set larger than the length of the plug 4a _, and as shown in FIG. When the tip of the plug 4a ₁ is inserted into the insertion hole 18d, a space 18a ₁ is formed on the base side of the storage recess 18a to allow the plug 4a to move in the length direction.

A locking tongue piece 18e is provided in the storage groove 18b of the cord 4 so as to protrude from one end toward the other end in the width direction.

The cord 4 is stored in the storage groove 18b from the gap at the tip of the locking tongue piece 18e, and after being stored, the cord 4 is inserted into the locking tongue piece 1.
8f prevents the cord 4 from falling out from inside the groove 18b.

In the stored and held state of the plug 4a shown in FIG.
8e prevents it from falling downward, and on the tip side, the insertion hole 18e at the tip of the insertion piece 4a ₁
By inserting the insertion piece 4a ₁ into the plug 4
As a result of preventing the plug 4a from falling downward, the plug 4a
The cord 4 is stably and reliably stored and held in the holding portion 18 on the lower surface of the lower lid 1b.

Effects According to the electric mosquito repellent according to the present invention, the transparent ring 5 installed so as to surround the electric heating part 3 is configured to emit light in a ring shape as a secondary light source when energized. This makes it easy to confirm the position of the heating section 3 in a dark place, making it convenient to replace the mat. Furthermore, since the light-transmitting ring 5 is configured to emit light from the point light source 7, there is almost no negative effect on cost, and a product with high commercial value can be provided at a low cost.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view showing one embodiment of the present invention, Fig. 2 is an oblique view showing the main body of the device with the upper cover omitted, Fig. 3 is a side view of Fig. 2, and Fig. 4 is a transparent view. A diagram showing an example of the cross-sectional shape of a light ring, FIG. 5 is an explanatory diagram of the principle of light emission of a light-transmitting ring, FIGS. FIG. 8 is an inverted perspective view of the container body. In the figure, 1 is the main body, 2 is the cord reel, and 3
is an electric heating part, 4 is an electric cord, 5 is a transparent ring, 6 is a recess, 7 is a point light source, 8 is a light receiving surface, 9 is a light scattering part, 10 is a light shielding/reflecting plate, 11 is a cord restraint , is a release mechanism.

Claims (1)

[Scope of utility model registration request] In an electric mosquito repellent having a heating part in the center of the upper surface of the device body, the device body includes a transparent ring that surrounds the heating portion and has an upper end exposed on the top surface of the device body, and the ring. A point light source that irradiates a light beam onto a light-receiving surface of the ring, and a light scattering section is provided on the light-receiving surface of the ring for causing a part of the irradiated light to enter and advance in the length direction of the ring. Mosquito trap.