JPH0543956U - Anti-fog mirror - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the efficiency of heat transfer from the heater block to the mirror. Improves the anti-fog effect by preventing heat radiation from the four laps. [Structure] A base 1 is recessed in the back to form a mirror mounting recess 2. The central portion of the mirror disposing recess 2 is recessed in the back to form the heater block accommodating recess 3. A heater block 4 is arranged in the heater block housing recess 3. The mirror 5 is placed in the mirror placement recess 2 and the front surface of the heater block 4 is brought into contact with the back surface of the mirror 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an anti-fog mirror for heating a mirror from the back to prevent the mirror from fogging.

[0002]

[Prior Art]

 In the conventional anti-fog for mirrors, the surface of the mirror is coated with a surfactant or the like, but there is a problem because it drops immediately or the surface is damaged. Therefore, some heaters are attached to the back surface of the mirror, but when the mirror breaks, the heater must be replaced at the same time. Therefore, a method of heating from behind the mirror with a separate heater block has been considered.

[0003]

[Problems to be solved by the device]

 However, in the case of heating with a separate heater from the back of the mirror, if there is a gap between the front of the heater block and the back of the mirror, there is a problem that the efficiency of heat transfer from the heater block to the mirror deteriorates. is there. In addition, if the contact block between the heater block and the mirror is open on all four sides, heat is radiated from this part and the anti-fog effect is reduced.

The present invention has been made in view of the above-mentioned problems of the conventional example, and an object thereof is to improve the efficiency of heat transfer from the heater block to the mirror, and also to make four rounds. An object of the present invention is to provide an anti-fog mirror that can prevent the heat radiation from the and improve the anti-fog effect.

[0005]

[Means for Solving the Problems]

 In the anti-fog mirror of the present invention, a base 1 is recessed in the back to form a mirror placement recess 2 and a central portion of the mirror placement recess 2 is recessed in the back to accommodate a heater block. The concave portion 3 is formed, the heater block 4 is arranged in the heater block accommodating concave portion 3, the mirror 5 is arranged in the mirror arranging concave portion 2, and the front surface of the heater block 4 is brought into contact with the rear surface of the mirror 5. By adopting such a configuration, the problems of the conventional example described above are solved and the object of the present proposal is achieved.

[0006]

[Action]

 Therefore, in the present invention, the base 1 is recessed in the back to form the mirror mounting recess 2, and the center of the mirror mounting recess 2 is recessed in the back to house the heater block. Forming the concave portion 3, disposing the heater block 4 in the heater block accommodating concave portion 3 and disposing the mirror 5 in the mirror disposing concave portion 2 so that the front surface of the heater block 4 contacts the rear surface of the mirror 5. Since the mirror 5 and the heater block 4 are separate bodies, even if the mirror 5 is damaged, it is no longer necessary to replace only the mirror 5 and the heater block 4, and the heater block 4 By bringing the front surface into contact with the back surface of the mirror 5, the efficiency of heat transfer from the heater block 4 to the mirror 5 can be improved, and the central portion of the mirror mounting recess 2 can be improved. Is recessed in the back to form the heater block housing recess 3 and the heater block housing recess is formed. By disposing the heater block 4 in 3 and the mirror 5 in the recess 2 for disposing the mirror, the four circumferences of the contact portion between the heater block 4 and the mirror 5 are surrounded by the periphery of the base 1. As a result, there is no fear that heat will be radiated from the four circumferences of the contact portion between the heater block and the mirror and the antifogging effect will be reduced.

[0007]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings. The base 1 is a molded product made of synthetic resin and has a frame 6 on the outer periphery. The base 1 is recessed in the back behind the portion surrounded by the frame 6 on the outer periphery to form a mirror. An arranging concave portion 2 is formed, and a central portion of the mirror arranging concave portion 2 is further recessed rearward to form a heater block accommodating concave portion 3. The heater block 4 is mounted in the heater block housing recess 3 of the base 1 in a determined state. In this case, in the embodiment shown in FIGS. 1 and 2, the heater block 4 is fixed to the base 1 by a fixing tool 8 such as a tapping screw through the connecting piece 7 or the like. It may be adopted. A cord 9 is led out to the back of the heater block 4, and is led out from the hole 10 of the base 1. In this case, a seal is made on the lead-out portion of the cord 9 on the back of the heater block 4. By providing the material 11 and pressing the seal material 11 against the bottom surface of the heater block housing recess 3 when the heater block 4 is housed in the heater block housing recess 3 and attached, a seal such as waterproof can be provided. ing. Then, around the lead-out portion of the cord 9 of the heater block 4, a fixing portion by the above-mentioned fixing tool 8 is provided as shown in FIG. 3, whereby the lead-out portion of the cord 9 of the heater block 4 is provided. The heater block 4 is evenly pressed around the base so as to be attached to the base 1 side. As a result, each part of the seal material 11 provided on the lead-out portion of the cord 9 on the back surface of the heater block 4 is evenly and strongly attached. The bottom of the heater block housing recess 3 is pressed to ensure a waterproof seal. The heater block 4 used in the embodiment shown in the accompanying drawings is, as shown in FIG. 4, covered with a metal plate 4c having a heater 4b attached to the back side of the front opening of a metal thin box-shaped heater case 4a and sealed. It is configured to be fixed by a fixing tool 4d via a material 4e. Of course, the heater block 4 is not limited to the one having the above-mentioned configuration, and may be not only an electric heater but also a hot water heater or the like.

A mirror mounting bracket 12 is attached to the mirror mounting recess 2 of the base 1, and the mirror 5 is mounted on the mirror mounting tool 12 to mount the mirror 5 in the mirror mounting recess 2. It is a thing. In this case, the rear surface of the mirror 5 contacts the front surface of the heater block 4. Reference numeral 13 in the drawing denotes a double-sided adhesive tape having elasticity interposed between the mirror 5 and the bottom surface of the recess 2 for disposing the mirror.

When the heater block 4 is heated, the heat of the heater block 4 is conducted to the mirror 5 that is in contact with the front surface of the heater block 4, and the mirror 5 is heated to prevent fog. In this case, since the front surface of the heater block 4 is in contact with the back surface of the mirror 5, the efficiency of heat transfer from the heater block 4 to the mirror 5 can be improved. Further, since the four circumferences of the contact portion between the heater block 4 and the mirror 5 are surrounded by the frame portion 6 around the base 1, heat radiation from the four circumferences of the contact portion between the heater block 4 and the mirror 5 is prevented. By preventing the heat radiation from the four circumferences, the mirror 5 can be more effectively defrosted.

[0010]

[Effect of the device]

 In the present invention, as described above, the base is recessed in the back to form the recess for mirror placement, and the central portion of the recess for mirror placement is recessed in the back for housing the heater block. Since the concave portion is formed, the heater block is arranged in the concave portion for housing the heater block, and the mirror is arranged in the concave portion for arranging the mirror to bring the front surface of the heater block into contact with the rear surface of the mirror, the mirror and the heater block are It is a separate body, and even if the mirror is damaged, it is not necessary to replace the heater block by replacing only the mirror. Also, since the front surface of the heater block is brought into contact with the rear surface of the mirror, it is possible to move from the heater block to the mirror. The heat transfer efficiency of the heater block can be improved. Furthermore, the central portion of the recess for mirror placement is recessed in the back to form a recess for housing the heater block, and the recess for housing the heater block is formed in the recess for housing the heater block. And the mirror is placed in the mirror placement recess. Therefore, the four circumferences of the contact part between the heater block and the mirror are surrounded by the circumference of the base, and the heat is radiated from the four circumferences of the contact part between the heater block and the mirror, which lowers the anti-fog effect. There is no such fear.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of the present invention.

FIG. 2 is a transverse sectional view of the above.

FIG. 3 is a front view of the above.

FIG. 4 shows the heater block of the above, (a) is a partially cutaway front view, and (b) is a sectional view.

[Explanation of symbols]

 1 base 2 recess for mirror placement 3 recess for heater block storage 4 heater block 5 mirror

Claims (1)

[Scope of utility model registration request] 1. A heater, wherein a base is recessed in the back to form a recess for mirror placement, and a central part of the recess for mirror placement is recessed in the back to form a recess for housing a heater block. An anti-fog mirror in which a heater block is disposed in the block accommodating recess, a mirror is disposed in the mirror disposing recess, and the front surface of the heater block is brought into contact with the rear surface of the mirror.