JP2005090168A - Object detecting sensor for sanitary flushing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an object detecting sensor in which a terminal of the detecting sensor disposed in front of a casing does not corrode even when humidity generated upon washing a private part with warm water injected through a flushing nozzle of a sanitary flushing device enters the sanitary flushing device through a cutout for a flushing nozzle formed under the casing. <P>SOLUTION: The object detecting sensor 9 mounted to the casing 8 having a window hole comprises a sensor body 9a having a light emitting element and a light receiving element, a filter 9c disposed at a predetermined interval from the sensor body 9a, and a sensor case 9b covering the sensor body 9a. A sensor cover 10 is provided to cover the sensor case 9b. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an object detection sensor of a sanitary washing device that detects a user.

  In the conventional sanitary washing device (especially sanitary washing device substantially the same as the toilet bowl width), the object detection sensor is installed at the front surface of the sanitary washing device, and the cleaning nozzle of the sanitary washing device is also disposed in the toilet bowl width. It was arranged at the center of the toilet and was able to extend and retract toward the center of the toilet (see, for example, Patent Document 1).

However, in the conventional configuration, since warm water is jetted out by the washing nozzle and the local part is washed, moisture accumulates in the toilet bowl, and the moisture is removed from the notch for the washing nozzle formed in the lower part of the casing to the inside of the sanitary washing apparatus. The terminal portion of the object detection sensor disposed on the front surface of the casing may be corroded, so that accurate detection performance may not be obtained or a disconnection failure may occur.
JP 2001-182126 A

  The present invention has been made to solve the above-described problems, and provides an object detection sensor for a sanitary washing device that can reduce the influence of moisture and ensure accurate detection performance and stable operation. Objective.

  In order to achieve the above object, according to the first aspect of the present invention, there is provided an object detection sensor that is mounted on a casing having a window hole and detects an object, and the object detection sensor includes a light emitting element and a light receiving element. A sensor main body provided with an element, a filter installed at a predetermined interval from the sensor main body, and a sensor case covering the sensor main body, and a sensor cover covering the sensor case are provided. Effective in preventing water exposure and moisture.

  According to the invention of claim 2, in addition to the invention of claim 1, the sensor cover is attached to the sensor case with a snap-fit structure, so that the attachment and detachment is facilitated.

  Further, according to the invention of claim 3, in addition to the invention of claim 1, since the sensor cover is made of aluminum tape, the thickness of the sensor cover can be reduced. In addition, according to this configuration, the object detection sensor can be detached from the casing of the sanitary washing apparatus with the sensor cover attached.

  According to the invention of claim 4, in addition to the invention of any of claims 1 to 3, the object detection sensor is mounted on the front surface of the casing of the sanitary washing device, thereby The sanitary washing apparatus can be configured in substantially the same manner as the above, and a compact sanitary washing apparatus can be configured.

  According to the present invention, it is effective to prevent the object detection sensor disposed in the sanitary washing device from being affected by the humidity of the hot water ejected from the washing nozzle.

  Hereinafter, the sanitary washing apparatus 1 which is one form of this invention is demonstrated using figures.

  FIG. 1 is a perspective view of the sanitary washing device 1. The sanitary washing device 1 is schematically configured by a toilet lid 2, a toilet seat 3, a functional part, and a casing 8 that covers the functional part.

  The functional unit includes an extendable cleaning nozzle 4 for cleaning a local part, a hot water tank 5 for warming water from a water supply source, a water supply valve unit 6 for controlling water supply by adjusting the pressure of the water supply source and using an electromagnetic valve, It comprises a control unit 7 that controls the cleaning device and an object detection sensor 9 that detects the user.

  FIG. 2 is a rear view of the casing. The object detection sensor 9 is attached to the casing 8 so as to be configured on the front surface of the sanitary washing device 1.

  FIG. 3 is an explanatory view of assembling the object detection sensor 9 to the casing 8. The object detection sensor 9 includes a sensor main body 9a, a sensor case 9b fitted to the sensor main body 9a, and a filter 9c fitted to the sensor main body 9a. Between the sensor main body 9a and the filter 9c, a light emitting portion that forms a light emitting space and a light receiving portion that forms a light receiving space between the filter 9c are formed. The sensor main body 9a is located inside the sensor case 9b. Mounted and assembled together.

  The object detection sensor 9 assembled integrally with the casing 8 is inserted into the casing 8 of the sanitary washing device 1 having the window hole 8a. When the resin fastening member 12 is inserted into the groove 9e formed by the protrusion 9d provided on the sensor case 9b from below, the elastic force of the column portion 12b formed on the fastening member 12 works, and the upper surface of the sensor case 9b is applied. The claw portions 12 a formed on the fastening member 12 are engaged to position the fastening member 12, and the object detection sensor 9 is fixed to the casing 8.

  FIG. 4A is an explanatory view of attachment of the sensor cover 10. FIG. 4B is a perspective view of the sensor cover. The sensor cover 10 has a cylindrical shape with a bottom square and is formed by resin molding. On the side surface of the sensor cover 10, a snap fit portion 10a that fits into a groove 9f formed on the side surface of the sensor case 9 is formed. The sensor cover 10 is put on the sensor case 9 and is fixed in a sealed state with almost no gap around the sensor case 9. The material of the sensor cover 10 is preferably a flame retardant grade of ABS (for example, 5V). Moreover, although the target object detection sensor 9 and the sensor cover 10 are attached by the snap fit, it cannot be overemphasized that screw fixation may be sufficient.

  FIG. 5 is a conceptual side view of the functional unit viewed from the side. Moisture (arrow) from the toilet 11 penetrates into the sanitary washing device through a washing nozzle notch 8b formed in the lower part of the casing, and is attached to the front surface of the casing 8 with respect to the object detection sensor 9. However, the sensor cover 10 attached to the object detection sensor 8 can prevent problems such as corrosion due to moisture.

In the embodiment described above, the sensor cover 10 for preventing moisture is formed of a resin molded product, but may be formed of a metal plate or the like. For example, it is needless to say that the effect of the present invention can be implemented by configuring a cover made of a metal such as aluminum in the form of a thin plate or tape and covering the object detection sensor. In addition, in the case of using aluminum as a tape and further provided with a double-sided tape, the cover-shaped configuration can be more easily performed. In addition, when the cover is made of a metal plate or the like, it can be expected that the control unit and another device (radio or the like) have high resistance to electrical noise and prevent false detection.
In addition, if the sensor cover 10 is formed of a metal plate, even if non-combustibility is required as a required specification, it becomes easier to deal with more than a resin molded product.

Front perspective view showing the toilet device of the present invention Rear view of the casing of the present invention Installation explanatory diagram of casing and object detection sensor of the present invention Installation explanatory diagram of the sensor cover of the present invention Conceptual side sectional view of the sanitary washing device of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Sanitary washing apparatus 2 ... Toilet lid 3 ... Toilet seat 4 ... Washing nozzle 5 ... Warm water tank 6 ... Water supply valve unit 7 ... Control unit 8 ... Casing 9 ... Object detection sensor 9b ... Sensor case 10 ... Sensor cover 11 ... Toilet 12 ... Fastening member

Claims (4)

An object detection sensor that is mounted on a casing having a window hole and detects an object, and the object detection sensor is installed at a predetermined interval from a sensor body including a light emitting element and a light receiving element. An object detection sensor for a sanitary washing device, comprising a sensor cover that covers the sensor case and a sensor case that covers the sensor body. The object detection sensor of the sanitary washing device according to claim 1, wherein the sensor cover is attached to the sensor case with a snap-fit structure. The said sensor cover is comprised with the aluminum tape, The target object detection sensor of the sanitary washing apparatus of Claim 1 characterized by the above-mentioned. The said object detection sensor is mounted | worn with the said casing front surface of the said sanitary washing apparatus, The object detection sensor of the sanitary washing apparatus of any one of Claim 1 thru | or 3 characterized by the above-mentioned.

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