JP4837443B2 - Sanitary washing device - Google Patents

Description

  The present invention relates to a sanitary washing device installed in a Western-style toilet.

  As a conventional sanitary washing apparatus, there is one in which a nozzle unit formed by integrating a drive unit for performing advancing and retreating operation of the cleaning nozzle is fixed to a casing on a nozzle support base that supports the washing nozzle so as to be movable back and forth ( For example, see Patent Document 1).

  On the other hand, in recent years, it has been required to improve the cleaning property of Western toilets, and as a means to satisfy the request, the casing part is designed so that the casing of the sanitary washing device does not protrude into the bowl part region of the Western toilet. Shortening the size in the front-rear direction has been studied. In such a sanitary washing device, since the length of the washing nozzle housed in the casing whose size in the front-rear direction is shortened also needs to be reduced, a plurality of cylinders arranged coaxially so as to be slidable with each other A multistage cleaning nozzle that can be expanded and contracted is suitable.

JP 2001-132057 A

  The multi-stage cleaning nozzle is formed of a plurality of layers of cylinders, and the cylinder moving distance during the expansion / contraction operation is larger than that of the conventional single-stage cleaning nozzle. The nozzle cannot be extended or contracted by the motor of the drive unit attached to the table. Therefore, the present applicant has provided a flexible rack for advancing and retracting the cylinder constituting the tip of the multi-stage washing nozzle, and a sanitary washing apparatus having a mechanism for reciprocating the flexible rack behind the washing nozzle. (Japanese Patent Application No. 2006-034531).

  In such a sanitary washing apparatus, it is necessary to effectively utilize the limited component storage space in the casing, and as a result, the drive portion of the flexible rack is disposed above the rear portion of the nozzle support base that holds the washing nozzle. The drive unit is arranged in a “cantilever state” with respect to the nozzle support. For this reason, when water is discharged while pulsating the cleaning water, the vibration imparted to the cleaning nozzle or nozzle support by the pulsation of the cleaning water may be amplified by the “cantilevered” drive unit.

  The problem to be solved by the present invention is to provide a sanitary washing apparatus capable of suppressing vibration during a washing operation.

The sanitary washing apparatus according to the present invention includes a multi-stage washing nozzle having a plurality of cylinders slidably arranged on the same axis, and transmits or rotates a drive motor to at least one of the cylinders to expand or contract the washing nozzle. The casing includes a flexible rack, a transmission unit that converts the rotation of the drive motor into a reciprocating motion of the flexible rack, and a nozzle support that includes a guide rail that holds the cleaning nozzle in an extendable manner. A sanitary washing device,
Fixing the cleaning nozzle to the casing via the nozzle support;
The drive motor and the transmission unit are fixed to the casing without the nozzle support.

  With such a configuration, the cleaning nozzle is fixed to the casing via the nozzle support base, while the drive motor and the transmission unit are fixed to the casing without the nozzle support base, so that the cleaning nozzle and the nozzle support are supported. Since the vibration of the table is difficult to be amplified, the vibration during the cleaning operation can be suppressed.

  Here, if the nozzle support is fixed to the casing via a damping member, the vibration of the cleaning nozzle is hardly transmitted to the casing, so that the vibration can be more effectively suppressed.

  On the other hand, as a fixing part for fixing the nozzle support base to the casing, a flange is provided at the rear part of the nozzle support base, and a fixing means for fixing the nozzle drive unit in which the drive motor and the transmission part are unitized to the casing. It is preferable that the nozzle driving unit is disposed above the fixing means and provided behind the nozzle support so as to overlap the flange. With such a configuration, the fixed part of the nozzle support base and the fixed part of the nozzle drive unit are overlapped, so that the cleaning nozzle and its drive mechanism can be made compact, and the occupied space in the casing can be reduced and assembled. Work efficiency can be improved.

  The sanitary washing apparatus of the present invention can provide a sanitary washing apparatus that can suppress vibration during the cleaning operation.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a state in which a sanitary washing apparatus according to an embodiment of the present invention is installed on a Western-style toilet. FIG. 2 is a schematic view showing a state in which a toilet seat and a toilet lid are detached from the sanitary washing apparatus shown in FIG. 3 is a block diagram showing a water channel system of the sanitary washing device shown in FIG. 1, FIG. 4 is a perspective view of the vicinity of the washing nozzle constituting the sanitary washing device shown in FIG. 1, and FIG. 5 is shown in FIG. 6 is a perspective view of the vicinity of a nozzle support that constitutes the sanitary washing device, FIG. 6 is a diagram showing an expansion / contraction operation of the washing nozzle that constitutes the sanitary washing device shown in FIG. 1, and FIGS. 7 and 8 show the sanitary washing device shown in FIG. FIG. 9 is a perspective view of a nozzle drive unit that constitutes the sanitary washing apparatus shown in FIG. 1, and FIG. 10 is a vertical sectional view of the portion indicated by an arrow X in FIG.

  As shown in FIGS. 1 and 2, the sanitary washing device 10 of the present embodiment is installed on a flat surface 11 f at the rear upper surface of a western toilet 11, and a toilet seat 12 for a user to sit on, and a bowl of the western toilet 11 And a toilet lid 14 which covers the toilet 13 and the toilet seat 12 so as to be openable and closable. On the front surface of the casing 10 a of the sanitary washing device 10, a concave curved surface portion 15 that is curved rearward according to the opening shape of the bowl portion 13 is provided. An opening 16 for taking in and out a cleaning nozzle 20 (see FIG. 4) to be described later is provided in the central portion of the concave curved surface portion 15. An opening / closing plate 17 is provided in the opening 16, and a cleaning nozzle 20 is housed in a retractable manner behind the opening / closing plate 17.

  As shown in FIG. 3, the sanitary washing device 10 of the present embodiment includes a valve 40 that controls the water supply to the downstream side of the water supplied from the water supply source, and the moment when the supplied water is heated to obtain wash water. Heat exchanger 41, electromagnetic pump 42 that pulsates a small flow rate of washing water to give a strong washing power, flow control for selectively supplying washing water to the washing nozzle 20 and nozzle washing chamber 43 and adjusting the flow rate -It has a water channel system comprising a flow path switching valve 44. Since the electromagnetic pump 42 disposed in the middle of the flow path leading to the cleaning nozzle 20 imparts pulsation to the cleaning water, the cleaning nozzle 20 of the sanitary cleaning device 10 vibrates during cleaning.

  When the user seated on the toilet seat 12 performs a predetermined cleaning start operation, the opening / closing plate 17 opens and the opening 16 projects from the head cylinder 21 to the third cylinder 23 of the cleaning nozzle 20 shown in FIGS. Then, the cleaning water is discharged from the water discharge hole 20a at the tip part toward the local part of the user. Further, when the user performs a predetermined cleaning stop operation after the cleaning is finished, after the discharge of the cleaning water stops, the head cylinder 21, the second cylinder 22 and the third cylinder 23 are retracted into the opening 16 to open the opening. The part 16 is again closed by the opening / closing plate 17.

  In the casing 10a of the sanitary washing device 10, as shown in FIGS. 4 to 7, a plurality of cylinders (head cylinder 21, second cylinder 22, third cylinder 23, fourth cylinder) are arranged so as to be slidable on the same axis. In addition to the multi-stage cleaning nozzle 20 having the cylinder 24), the rotation of the driving motor 25 is transmitted to the head cylinder 21 to extend and contract the cleaning nozzle 20, and the rotation of the driving motor 25 is rotated by the gear 27. And a nozzle support base 19 having a guide rail 18 that holds the cleaning nozzle 20 in an extendable manner. One end of the flexible rack 26 is inserted into a rack tube 36 fixed to the casing 10a.

  As shown in FIG. 4, the cleaning nozzle 20 is fixed to a plurality of bosses 29 erected on the casing 10 a via the nozzle support 19, and as shown in FIGS. The part 28 is fixed to a boss 30 erected on the casing 10 a via a mounting base 32. The nozzle support 19 is fixed to the boss 29 of the casing 10a via a vibration isolating rubber 31 that is a vibration damping member. That is, as shown in FIGS. 7 and 10, the anti-vibration rubber 31 is interposed between the fixing hole 19 a provided in the flange 19 b extending rearward of the nozzle support 19 and the reduced diameter portion 29 a of the boss 29. Are fixed by fastening a washer 33 to the tip of the reduced diameter portion 29a and tightening with a screw 34.

  Further, the drive motor 25 and the transmission unit 28 described above are unitized as a nozzle drive unit 35, and a mounting base 32 that is a means for fixing the nozzle drive unit 35 to the casing 10 a extends to the rear of the nozzle support base 19. It is provided so as to straddle the upper part of the provided flange 19b. A nozzle drive unit 35 is disposed above the mounting base 32.

  As described above, the nozzle support 19 and the nozzle drive unit 35 are separately fixed to the casing 10a. Specifically, the cleaning nozzle 20 is fixed to the casing 10 a via the nozzle support 19, and the nozzle drive unit 35 including the drive motor 25 and the transmission unit 28 is connected via the mounting base 32. It is being fixed to casing 10a without going through. With this structure, the nozzle drive unit 35 is “cantilevered” with respect to the mounting base 32, but is separated from the vibrating members (nozzle support base 19 and cleaning nozzle 20). The nozzle drive unit 35 can be stably fixed to the casing 10a, thereby suppressing vibration during the cleaning operation. Therefore, when the cleaning water discharged from the cleaning nozzle 20 is pulsating, the vibration of the cleaning nozzle 20 and the nozzle support 19 is not amplified by the nozzle drive unit 35. In addition, since the nozzle support 19 is fixed to the boss 29 of the casing 10a via the anti-vibration rubber 31, the vibration of the cleaning nozzle 20 is hardly transmitted to the casing 10a, and the vibration can be effectively suppressed.

  On the other hand, by using the nozzle drive unit 35, the drive motor 25 and the transmission unit 28 are integrated, and the mounting base 32 of the nozzle drive unit 35 is straddled across the mounting flange 19b on the rear side of the nozzle support base 19. Is fixed to the casing 10a, thereby superposing the mounting portions of the nozzle support 19 and the mounting base 32 on the casing 10a. For this reason, compactness can be achieved, and the space occupied in the casing 10a can be reduced and the efficiency of assembly work can be improved.

  The sanitary washing device of the present invention can be widely used in Western toilets such as ordinary households and public facilities.

It is a perspective view which shows the state which installed the sanitary washing apparatus which is embodiment of this invention on a western style toilet bowl. It is a perspective view which shows typically the state which removed the toilet seat and the toilet lid from the sanitary washing apparatus shown in FIG. It is a block diagram which shows the water channel system of the sanitary washing apparatus shown in FIG. FIG. 2 is a perspective view of the vicinity of a cleaning nozzle constituting the sanitary cleaning device shown in FIG. 1. It is a perspective view of the nozzle support base vicinity which comprises the sanitary washing apparatus shown in FIG. It is a figure which shows the expansion-contraction operation | movement of the washing nozzle which comprises the sanitary washing apparatus shown in FIG. It is a disassembled perspective view of the nozzle support base vicinity which comprises the sanitary washing apparatus shown in FIG. It is a disassembled perspective view of the nozzle support base vicinity which comprises the sanitary washing apparatus shown in FIG. It is a perspective view of the nozzle drive unit which comprises the sanitary washing apparatus shown in FIG. FIG. 8 is a vertical cross-sectional view taken along a line X in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Sanitary washing device 11 Western style toilet 12 Toilet seat 13 Bowl part 14 Toilet lid 15 Concave surface part 16 Opening part 17 Opening and closing plate 18 Guide rail 19 Nozzle support stand 20 Cleaning nozzle 20a Water discharge hole 21 Head cylinder 22 2nd cylinder 23 3rd cylinder 24 Fourth cylinder 25 Drive motor 26 Flexible rack 27 Gear 28 Transmission portion 29, 30 Boss 29a Reduced diameter portion 31 Anti-vibration rubber 32 Mounting base 33 Washer 34 Screw 35 Nozzle drive unit 36 Rack tube 40 Valve 41 Instant heat exchanger 42 Electromagnetic Pump 43 Nozzle cleaning chamber 44 Flow control / flow path switching valve

Claims (3)

A multi-stage cleaning nozzle having a plurality of cylinders slidably arranged on the same axis, a flexible rack for transmitting the rotation of a drive motor to at least one of the cylinders to extend or contract the cleaning nozzle, and the drive A sanitary washing apparatus provided with a transmission part for converting the rotation of a motor into a reciprocating operation of the flexible rack, and a nozzle support base having a guide rail for holding the washing nozzle in an extendable manner,
Fixing the cleaning nozzle to the casing via the nozzle support;
The sanitary washing apparatus, wherein the drive motor and the transmission unit are fixed to the casing without the nozzle support.   2. The sanitary washing apparatus according to claim 1, wherein the nozzle support is fixed to the casing via a damping member.   A fixing means for fixing a nozzle drive unit, in which a flange is provided at a rear portion of the nozzle support base as a fixing portion for fixing the nozzle support base to the casing, and the drive motor and the transmission unit are unitized, to the casing. 3. The sanitary washing apparatus according to claim 1, wherein the sanitary washing apparatus is provided behind the nozzle support so as to overlap with a flange, and the nozzle driving unit is disposed above the fixing means.

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