JP3776114B1 - Mirror anti-fog device - Google Patents

Abstract

An anti-fogging device for a mirror having a simple structure, the device itself does not contact the mirror, and can be quickly removed with a small amount of hot water.
An anti-fogging device 9 according to the present invention includes a flat nozzle 40 that flows down warm water H and a rectifying plate 50 that guides the warm water H that has flowed down to the back surface of a mirror 7. The flat nozzle 40 includes a slit-like opening that is composed of a pair of front and rear nozzle plates and extends to the left and right at the lower end. The rectifying plate 50 extends from the rear side of the lower end of the flat nozzle 40 to the lower side, enters the gap between the upper end portion of the mirror 7 and the substrate 6 in a non-contact state with the mirror 7, and bends or curves forward. It is close to the back surface of the mirror 7. Further, a water storage drum 30 whose front surface is formed in a substantially semi-cylindrical surface is connected to the upper end of the flat nozzle 40, and a water injection pipe 20 extending in the left-right direction is provided in the drum. The water injection pipe 20 is provided with a plurality of water injection holes 21 at left and right intervals.
[Selection] Figure 1

Description

  The present invention relates to an apparatus for stopping fogging caused by condensation on a mirror in a bathroom or the like.

  Most of the devices of this type attach a heating wire to the back side of the mirror, warm the mirror by the heat from the heating wire, and remove fogging. However, installation using such a heating wire is difficult to install and maintain because it is necessary to prevent leakage due to the ingress of water droplets. Therefore, some devices have been proposed that use hot water instead of heating wires, such as the devices shown in the following conventional examples 1 to 3.

The apparatus of the prior art example 1 (Patent Document 1) shown in FIG. 4A applies hot water H to the top of the mirror 91 from the tip of the pipe 92 disposed above the mirror 91, and flows down along the front and back surfaces. Thus, the surface of the mirror 91 is warmed to remove fogging. Further, in the apparatus of Conventional Example 2 (Patent Document 2) shown in FIG. 4B, the hot water H supplied to the upper hot water receiving portion 95 flows down through the flow passage 94 arranged on the back side of the mirror 93. In addition, the mirror 93 is warmed by the heat to remove fog. In addition, the apparatus of Conventional Example 3 (Patent Document 3) shown in FIG. 4C turns the piping 98 to the shower or the like to the back side of the mirror 97, and when the hot water H is supplied to the shower or the like, The mirror 97 is warmed to remove fog.
JP-A-8-187146 JP-A-10-33332 JP 2005-34255 A

  However, in the case of Conventional Example 1, since the hot water H is only applied from above, the hot water H does not spread evenly on the back surface and the surface of the mirror 91. Therefore, unless a large amount of hot water H is applied, the entire mirror 91 is not easily heated, and the cloudiness cannot be quickly removed. Moreover, in the prior art 2, since it is necessary to arrange the flow path 94 on the back side of the mirror 93, the structure becomes complicated. Also in the conventional example 3, it is necessary to turn and embed a pipe 98 to a shower or the like in the wall on the back side of the mirror 97, so that the structure becomes complicated and large. Further, in the conventional examples 2 and 3, since the apparatus itself is in contact with the mirror, there is a risk that the mirror is stressed and the mirror is easily distorted.

  Therefore, an object of the present invention is to provide a mirror anti-fogging device that has a simple structure and does not contact the mirror itself and can quickly remove fogging with a small amount of hot water.

  To achieve the above object, the anti-fogging device for a mirror according to the present invention comprises a flat nozzle for flowing hot water, comprising a pair of front and rear nozzle plates and a slit-like opening extending to the left and right at the lower end, and the nozzle plate on the rear side. A rectifying plate that extends downward from the lower end of the mirror, enters the gap between the upper end of the mirror and the wall in a state of non-contact with the mirror, and bends or bends toward the front and close to the back surface of the mirror Yes. Here, the wall refers to any member having a wall surface facing the mirror, and may be, for example, a substrate installed on a bathroom wall. Here, “front” means the near side of the wall, “rear” means the wall side, and “left” and “right” mean directions when facing from the front to the rear.

  The mirror anti-fogging device may be directly connected to the upper end of the flat nozzle, such as a pipe serving as the hot water supply base, but connected to a water storage drum whose front surface is formed in a substantially half-cylinder surface. Preferably it is. This is because once the hot water is stored in the water storage drum, the hot water can be leveled substantially evenly from side to side. Moreover, such a shape is because there is no danger even if it hits a head etc. when using a mirror.

  In the mirror anti-fogging device, the hot water may be poured into the water storage drum from only one place, but a water injection pipe extending in the left and right directions is provided in the water storage drum, and the water injection pipe includes a plurality of water injection pipes. It is preferable that the holes are arranged on the left and right sides with an interval. This is because, by dispersing and pouring water from the plurality of water injection holes, the warm water can be quickly and substantially evenly distributed within the drum.

  The anti-fogging device for the mirror is not particularly limited, but it is preferable that the water storage drum is formed with a hole for extracting water vapor and excessive hot water stored therein. This is because it is possible to avoid a situation in which the water storage drum ruptures due to the steam pressure of water vapor or the pressure of hot water.

  Further, the anti-fogging device for the mirror is not particularly limited, but it is preferable that the lower end of the mirror is provided with a drain plate for guiding hot water flowing down from the lower end to the wall. This is because hot water does not scatter from the lower end.

  Although the material of the said flat nozzle, the said baffle plate, the said water storage drum, and the said drain plate is not specifically limited, Various metals, various resin, various rubber materials, etc. are illustrated.

  The slit interval of the slit-shaped opening is not particularly limited, but is preferably 0.1 to 0.5 mm, more preferably 0.2 to 0.4 mm, and 0.25 to 0.35 mm. Most preferred. This is because if the flow rate is too small, the flow rate of hot water will be too small, while if it is too large, the flow rate will be excessive.

  The length of the current plate that enters the gap is not particularly limited, but is preferably 15 to 30 mm, and more preferably 20 to 25 mm. If it is too small, hot water may jump out from the upper end of the mirror to the surface side, while if it is too large, it will be difficult for heat to reach the upper end of the mirror.

  Although the magnitude | size of the said injection hole is not specifically limited, It is preferable that a diameter is 1-3 mm, and it is more preferable that it is 1.5-2.5 mm. If it is too small, the water pressure in the water injection pipe will be too high due to the resistance when warm water passes through the water injection hole, while if it is too large, the hot water will be injected in a biased manner starting from the water injection hole on the front side and from the water injection hole on the tip side. This is because water is not poured. The number of the water injection holes is not particularly limited, but is preferably 3 to 8. If the amount is too small, it will be difficult to quickly and evenly distribute the hot water in the drum, while too much will be difficult to design.

  According to the present invention, since the hot water flows down from the slit-like opening extending to the left and right, and is guided to the back surface of the mirror by the rectifying plate, the hot water is supplied to the back surface in a state of spreading substantially evenly to the left and right. Is done. Therefore, as the hot water flows down, the mirror is warmed from top to bottom and right and left substantially evenly, and the cloudiness is quickly removed even with a small amount of hot water. Further, since the apparatus only transmits the hot water to the back surface of the mirror in this way, there is no need to provide a flow path or the like on the back side of the mirror, and the structure is simple. Further, since the device itself does not contact the mirror, there is no risk of stressing and distorting the mirror.

  The anti-fogging device 9 of the present invention includes a flat nozzle 40 that flows down the warm water H and a rectifying plate 50 that guides the flow of warm water H to the back surface of the mirror 7. The flat nozzle 40 includes a pair of front and rear nozzle plates 40a and 40b and a slit-like opening 41 extending left and right at the lower end. The rectifying plate 50 extends downward from the lower end of the nozzle plate 40a on the rear side, enters the gap g between the upper end of the mirror 7 and the substrate 6 in a non-contact state with the mirror 7, and bends forward or Curved and close to the back of the mirror 7. Further, a water storage drum 30 whose front surface is formed in a substantially semi-cylindrical surface is connected to the upper end of the flat nozzle 40, and a water injection pipe 20 extending in the left-right direction is provided in the drum. The water injection pipe 20 is provided with a plurality of water injection holes 21 at left and right intervals.

The mirror anti-fogging device 9 shown in FIGS. 1 to 3 of the present embodiment is a device for removing fogging when a mirror installed in a bathroom or the like is clouded. Here, a mirror with a rectangular plate shape is used. 7 is the target. The mirror 7 and the anti-fogging device 9 are attached to a rectangular plate-like substrate 6 installed along the wall 5 of the bathroom. At this time, the mirror 7 has a gap g between it and the substrate 6. , And is supported by a mirror fixture 8 attached to the substrate 6. Here, the dimensions of each part are such that the thickness of the mirror 7 is 4 to 11 mm, the length of the mirror fixture 8 in the front-rear direction is 7 to 13 mm, and the gap between the mirror 7 and the substrate 6 is g is 2 to 6 mm. In the first embodiment, “front” refers to the front side of the substrate 6, “rear” refers to the substrate 6 side, and “left” and “right” refer to directions when facing from the front to the rear. Shall.

  The anti-fogging device 9 includes a hot water supply pipe 10 serving as a supply base of the hot water H, a water injection pipe 20 connected to the tip of the hot water supply pipe 10, and a reservoir for temporarily storing the hot water H injected from the water injection pipe 20. The drum 30, the flat nozzle 40 that flows down the stored warm water H, the rectifying plate 50 that guides the flowing warm water H to the back surface of the mirror 7, and the warm water H that has flowed down along the back surface of the mirror 7 to the substrate 6 And a drainage plate 60 that leads to the surface.

  The hot water supply pipe 10 is a pipe for supplying hot water H. A pipe to a shower or the like is connected to the proximal end, and a water injection pipe 20 is connected to the distal end via a connecting pipe 14. Further, a flow rate adjusting valve 11 for adjusting the flow rate, an opening / closing valve 12 for opening and closing the flow path, and a strainer 13 for capturing solid foreign substances are attached to the middle portion of the hot water supply pipe 10. An orifice plate having an orifice hole having a diameter of 1 to 3 mm is attached to the inside of the strainer 13.

  The water injection pipe 20 is a pipe for dispersing the hot water H supplied from the hot water supply pipe 10 into the water storage drum 30 in the left and right directions, and a plurality of water injection holes 21 are arranged at intervals in the left and right. ing. This water injection pipe 20 is a cylindrical pipe installed in front of the substrate 6 above the mirror 7 so as to penetrate the water storage drum 30 to the left and right, and is connected to the hot water supply pipe 10 at one end. A plug 22 that closes the opening is fitted to the end, and five water injection holes 21 having a circular cross-sectional shape are provided in the side portion at regular intervals. The dimensions of the water injection pipe 20 are such that the inner diameter is 7 to 13 mm and the diameter of the cross section of the water injection hole 21 is 1.5 to 2.5 mm.

  The water storage drum 30 is a drum for temporarily storing the hot water H poured from the water injection pipe 20 so as to evenly distribute the hot water H to the left and right. The upper end of the flat nozzle 40 is connected to the lower end of the drum. A supply port 31 communicating with the opening at the upper end of the flat nozzle 40 is formed at the connection portion. In addition, the water storage drum 30 is formed with a circular hole 32 having a circular cross-sectional shape for extracting water vapor and excessively stored hot water H. The front surface of the water storage drum 30 has a semi-cylindrical shape, and is connected to the substrate 6 via a plurality of connection fittings 33 having an L shape. The dimensions of the water storage drum 30 are such that the cross-sectional diameter of the semi-cylindrical surface is 50 to 100 mm, and the cross-sectional diameter of the hole 32 is 3 to 5 mm.

  The flat nozzle 40 is a nozzle for flowing the hot water H stored in the water storage drum 30 to the left and right widely and substantially evenly. The water storage drum 30 is connected to the upper end, and a slit-like opening 41 extending to the left and right is provided at the lower end. Is formed. The flat nozzle 40 includes a pair of front and rear nozzle plates 40a and 40b, and side wall portions 40c and 40d are formed at both left and right ends. As for the dimensions of the flat nozzle 40, the slit interval w of the slit-shaped opening 41 is 0.2 to 0.4 mm.

  The rectifying plate 50 is a plate for guiding the hot water H flowing down from the slit-shaped opening 41 to the back surface of the mirror 7 without contacting the mirror 7, and is provided below the lower end of the rear nozzle plate 40a. Extending from the top end of the mirror 7 into the gap g between the substrate 6 and a bent portion 52 bent forward from the tip of the hanging portion 51 and close to the back surface of the mirror 7. Yes. As for the size of the current plate 50, the length L that enters the gap g between the mirror 7 and the substrate 6 is 20 to 25 mm. And the clearance gap between the lower end of the bending part 52 and the back surface of the mirror 7 is 1-2 mm.

  The water storage drum 30, the flat nozzle 40, and the rectifying plate 50 are integrally formed by bending and welding a plurality of stainless steel plates, and a back plate 9a extending along the substrate 6 and the back plate 9a. After curving from the upper end of the tube, it extends downward and encloses the water injection pipe 20 in a semicircular shape from the front, and then bends further and has a curved plate 9b whose lower end protrudes slightly vertically downward, and ends on both the left and right sides. It is composed of two end face plates 9c and 9d, each of which is a vertically divided, substantially semicircular plate that is formed with a protrusion that protrudes slightly downward at the lower end. Each of these plates constitutes the following part. That is, as for the back plate 9a, the upper part constitutes the back part of the water storage drum 30, and the lower part protruding downward from the lower end of the water storage drum 30 constitutes the rear nozzle plate 40a and the current plate 50. . Further, in the curved plate 9b, the bent portion at the top constitutes the front portion of the water storage drum 30, and the projecting lower end constitutes the front nozzle plate 40b. Further, in the both end plates 9 c and 9 d, the vertically divided substantially hemispherical portions constitute the left and right end surfaces of the water storage drum 30, and the lower end protrusions constitute the side wall portions 40 c and 40 d of the flat nozzle 40. These stainless steel plates have a thickness of 0.2 to 0.4 mm.

  The drain plate 60 is a plate for guiding the hot water H flowing down from the lower end of the mirror 7 to the surface of the substrate 6, and includes a front wall portion 61 that covers the lower end of the mirror 7 and its vicinity from the front, and the front wall. Bent from the lower end of the portion 61 to the rear and cover the lower end of the mirror 7 from below, and bent from the rear end of the bottom portion 62 and with a gap s between the substrate 6 and the substrate 6 And a discharge portion 63 extending in the direction. At this time, the gap s is formed by fixing the discharge portion 63 to the substrate 6 with a screw 65 in a state where the spacer 64 is sandwiched between the discharge portion 63 and the substrate 6. The spacer 64 is a ring-shaped rubber packing, and a central portion thereof serves as an insertion hole through which the screw 65 is inserted. The material of the drain plate 60 is aluminum, and the dimensions of the drain plate 60 are 0.5 to 1.5 mm in thickness and 8 to 14 mm in length before and after the bottom 62. And the clearance gap s between the discharge part 63 and the board | substrate 6 is 0.5-1.5 mm. The spacer 64 has an outer diameter of 7 to 13 mm, an inner diameter of 3 to 6 mm, and a thickness of 0.5 to 1.5 mm.

A state when the anti-fogging device 9 shown above is operated by opening the opening / closing valve 12 will be described below.
(1) Hot water H is supplied from the hot water supply pipe 10 to the water injection pipe 20.
(2) The supplied hot water H is poured into the water storage drum 30 from each water injection hole 21.
(3) The poured hot water H flows down to the vicinity of the bottom of the water storage drum 30, becomes a horizontal hot water pool, and then flows down from the flat nozzle 40.
(4) The hot water H that has flowed down flows through the rectifying plate 50 and into the back surface of the mirror 7.
(5) The hot water H that has flowed down flows down along the back surface of the mirror 7, while the mirror 7 is warmed by the heat of the hot water H, and fogging of the surface of the mirror 7 is removed.
(6) After the hot water H that has flowed down flows down from the lower end of the mirror 7, it flows along the drain plate 60 and flows into the surface of the substrate 6.
(7) The hot water H that has flowed down flows down along the surface of the substrate 6.

  According to the present embodiment, since the hot water H flows down from the slit-like opening 41 extending in the left and right directions, and is guided to the back surface of the mirror 7 by the rectifying plate 50, the hot water H spreads substantially evenly in the left and right directions. In the state, it is supplied to the back surface of the mirror 7. Therefore, as the hot water H flows down, the mirror 7 is warmed from the top to the bottom and substantially right and left, and the cloudiness is quickly removed even with a small amount of hot water H. Further, since the apparatus only transmits the hot water H to the back surface of the mirror 7 as described above, it is not necessary to provide a flow path or the like on the back side of the mirror 7 and the structure is simple. Further, since the device itself does not contact the mirror 7, there is no possibility that the mirror 7 is stressed and the mirror 7 is distorted.

  Further, since the front surface of the water storage drum 30 has a substantially semi-cylindrical shape, even if the head or the like is accidentally hit against the water storage drum 30 when the mirror 7 is used, there is no danger. Further, since the water storage drum 30 includes the vent hole 32, even if the hot water H is excessively supplied, there is no possibility that the water storage drum 30 will rupture due to the water pressure, weight, or the like. Moreover, since there is the drain plate 60, the hot water H flowing down from the lower end of the mirror 7 does not scatter.

  In addition, this invention is not limited to the said Example, In the range which does not deviate from the meaning of invention, it can change suitably and can be actualized.

It is a whole perspective view which shows the anti-fogging apparatus of the mirror of the Example of this invention. It is a fragmentary sectional view which shows the upper part of the anti-fogging apparatus of the mirror of the Example. It is a fragmentary sectional view which shows the lower part of the anti-fogging device of the mirror of the Example. (A), (b) is a perspective view which shows the apparatus of the prior art examples 1 and 2, (c) is a front view which shows the apparatus of the prior art example 3. FIG.

Explanation of symbols

6 Substrate (wall)
7 Mirror 9 Anti-fogging device 20 Water injection pipe 21 Water injection hole 30 Water storage drum 32 Drain hole 40 Flat nozzle 40a Nozzle plate (rear side)
40b Nozzle plate (front side)
41 Slit-shaped opening 50 Rectifier plate 60 Drain plate H Hot water g Gap between the upper end of the mirror and the wall w Slit interval

Claims (6)

  A flat nozzle for flowing warm water, which is composed of a pair of front and rear nozzle plates and extends to the left and right at the lower end, and extends downward from the lower end of the nozzle plate on the rear side, and the gap between the upper end of the mirror and the wall A mirror anti-fogging device provided with a rectifying plate that enters in a non-contact state with the mirror and is bent or bent forward and close to the back surface of the mirror.   The anti-fogging device for a mirror according to claim 1, wherein a water storage drum having a front surface formed in a substantially semi-cylindrical surface is connected to an upper end of the flat nozzle.   3. The mirror anti-fogging device according to claim 2, wherein a water injection pipe extending in the left-right direction is provided in the water storage drum, and a plurality of water injection holes are disposed in the water injection pipe at intervals in the left-right direction.   The anti-fogging device for a mirror according to claim 2 or 3, wherein a vent hole for extracting water vapor and excessively stored hot water is formed in the water storage drum.   The anti-fogging device for a mirror according to any one of claims 1 to 4, further comprising a drain plate for guiding hot water flowing down from the lower end to the wall at a lower end of the mirror.   The mirror anti-fogging device according to any one of claims 1 to 5, wherein a slit interval of the slit opening is 0.1 to 0.5 mm.

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