JP2019143454A - Nozzle unit - Google Patents

Abstract

To provide a nozzle unit which can be made compact in a height direction and can easily cope with a change in the specifications of the number of nozzles.SOLUTION: A nozzle unit 20 used in sanitary washing equipment includes nozzles 30, 130, support members 21 and 121 for supporting the nozzles, and a guide member 25 on which the support members can be attached from both left and right sides, and guide portions are provided at both left and right sides. The nozzle unit can be configured as a single nozzle by providing one nozzle and one support member and guiding the one nozzle so that it can be advanced and retreated using one side of the guide portions. The nozzle unit can also be configured as two nozzles by providing the two nozzles and two support members side by side and guiding the two nozzles so that they can be advanced and retreated using the guide portions at both sides.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a nozzle unit.

  Conventionally, as this type of nozzle unit, a unit including a nozzle part, a support part that supports the nozzle part so as to advance and retreat, and a drive part that moves the nozzle part forward and backward has been proposed (for example, see Patent Document 1). ). The drive unit includes a flexible rack coupled to the nozzle unit, a pinion gear that moves the flexible rack forward and backward, and a motor that drives the pinion gear. The support part has a guide rail for guiding the advance / retreat movement of the nozzle part and a rack guide for guiding the advance / retreat movement of the flexible rack, and the guide rail and the rack guide are arranged above the nozzle part. . The nozzle portion has a sliding portion that is coupled to the flexible rack and that slides by engaging with the guide rail, and moves forward and backward along the guide rail.

International Publication No. 2014/136371

  In recent years, in the sanitary washing toilet seat device, a thin design has been favored, and it is required to make the nozzle unit compact in the height direction. In the nozzle unit described in Patent Document 1 described above, since the guide rail and the rack guide are disposed above the nozzle portion, the unit height is increased, which is not suitable for achieving compactness in the height direction.

  Further, in the sanitary washing toilet seat device, in addition to the nozzle unit having one nozzle part, for example, a nozzle unit having two independent nozzle parts for buttocks washing and bidet washing has been proposed. However, there are various customer demands, and it is also required to respond quickly and at low cost to specification changes that meet customer demands.

  The main purpose of the nozzle unit of the present invention is to make it compact in the height direction and to easily cope with a change in the specification of the number of nozzles.

  The nozzle unit of the present invention employs the following means in order to achieve the main object described above.

The nozzle unit of the present invention is
A nozzle unit used in a sanitary washing device,
A nozzle capable of jetting cleaning water;
A support member that supports the nozzle so as to advance and retreat; and
A drive member for moving the nozzle back and forth;
A guide member capable of attaching the support member from both left and right sides;
With
The nozzle and the support member may be provided one by one or may be provided two by two in the left-right direction,
The guide member has guide portions for guiding the forward / backward movement of the nozzle on both left and right sides, and when the nozzle and the support member are provided one by one, the one support member is attached to the one side When the guide part guides the forward / backward movement of the nozzle and two nozzles and the support member are provided, the two support members are attached, and the two guide parts on both sides advance and retreat the two nozzles. Guide each one,
This is the gist.

  The nozzle unit used in the sanitary washing device of the present invention includes a nozzle, a support member that supports the nozzle, and a guide member that can be attached to the support member from both the left and right sides and that has guide portions on both the left and right sides. . The nozzle unit can be configured as a single nozzle by providing one nozzle and one support member and guiding one nozzle so as to advance and retreat using a single-side guide portion. In addition, the nozzle unit can be configured as two nozzles by providing two nozzles and supporting members side by side and guiding the two nozzles so as to be able to advance and retreat using the guide portions on both sides. Since the guide member guides the side surface of the nozzle, the height direction of the nozzle unit can be made compact. Further, since the guide member is shared by the configuration of one nozzle and the configuration of two nozzles, it is possible to easily cope with a change in the specification of the number of nozzles.

  In such a nozzle unit of the present invention, the guide portion is a guide groove extending in the forward and backward direction of the nozzle, and the nozzle engages with the guide groove and slides along the guide groove at the rear end portion. It is good also as what has the protrusion part which protruded possible. In this aspect of the nozzle unit of the present invention, the protrusion and the guide groove may be provided in a predetermined number of two or more at a predetermined interval. By so doing, rattling between the nozzle and the guide member can be reduced, and the forward and backward movement of the nozzle can be guided more smoothly.

  In the nozzle unit of the present invention, the drive member includes a rack, a pinion gear that meshes with the rack, and a motor that drives the pinion gear, and the nozzle projects to the opposite side of the guide member in the left-right direction. The slider may be coupled to the rack, and the support member may include a second guide groove that fits the slider and guides the movement of the slider and the rack. In this way, the nozzle unit can be guided on both sides in the left-right direction while making the height direction of the nozzle unit compact, and the nozzle can be moved back and forth more smoothly.

It is an external view of the toilet bowl 1 to which the sanitary washing toilet seat apparatus 10 was attached. It is the external appearance perspective view which looked at the nozzle unit 20 of this embodiment from the front side. It is sectional drawing which shows the AA cross section of the nozzle unit 20 of FIG. 3 is an exploded perspective view showing the nozzle unit 20 in an exploded manner. FIG. It is a disassembled perspective view which decomposes | disassembles and shows the local washing nozzle 30. FIG. 3 is an external perspective view showing an external appearance of a state in which a local cleaning nozzle 30 is accommodated in a unit case 21. FIG. 2 is an external perspective view showing an external appearance of a center plate 25. FIG. It is an external appearance perspective view when the nozzle unit 20 is made into 1 nozzle structure.

  DESCRIPTION OF EMBODIMENTS Embodiments for carrying out the present invention will be described with reference to the drawings.

  1 is an external view of a toilet 1 to which a sanitary washing toilet seat device 10 is attached, FIG. 2 is an external perspective view of the nozzle unit 20 of the present embodiment as viewed from the front side, and FIG. 3 is a nozzle unit of FIG. FIG. 4 is an exploded perspective view showing the nozzle unit 20 in an exploded manner. As shown in FIG. 1, the toilet 1 is a Western-style toilet, and a sanitary washing toilet seat device 10 is installed on the upper surface of the toilet 1. The sanitary washing toilet seat device 10 includes a toilet seat device main body 11 installed behind the toilet 1, a toilet seat 12 rotatably supported on the toilet seat device main body 11, and a toilet supported rotatably on the toilet seat device main body 11. A lid 13 and an operation panel 14 operated by a user are provided.

  The toilet seat main body 11 includes a washing water passage connected to a water supply pipe (water pipe), a water stop valve, a heat exchange unit, a pulsation pump that adjusts the strength of washing, a nozzle unit 20 that ejects washing water, and the like. These are housed in a resin housing. The heat exchange unit is provided with a heater and a temperature sensor, and water from the water supply pipe is heated by the heater.

  As shown in FIGS. 2 to 4, the nozzle unit 20 of the present embodiment includes two columnar local cleaning nozzles 30 and 130 arranged in the left-right direction, and a nozzle driving unit that drives each of the local cleaning nozzles 30 and 130. 40, 140, one long center plate 25 disposed between the two local cleaning nozzles 30, 130, and attached to the center plate 25 to cover and support the outer periphery of the local cleaning nozzles 30, 130, respectively. Two unit cases 21 and 121, one nozzle cleaner 50, and a switching valve (not shown) are provided. The switching valve is used to switch whether the supply destination of the cleaning water in the cleaning water flow path downstream from the pulsation pump is ejected from the two local cleaning nozzles 30 and 130 or the nozzle cleaning device 50. Then, it is configured as a rotary valve driven by a motor.

  In this embodiment, the local cleaning nozzles 30 and 130 are single-stage nozzles that do not expand and contract, and are configured by a buttocks cleaning nozzle and a bidet cleaning nozzle. FIG. 5 is an exploded perspective view showing the local cleaning nozzle 30 in an exploded manner. The local cleaning nozzle 130 is configured in the same manner as the local cleaning nozzle 30 except that the cleaning application is different, and thus the description of the configuration is omitted. As shown in FIG. 5, the local cleaning nozzle 30 covers the entire nozzle main body 31 and a resin-made cylindrical nozzle main body 31 having a cleaning water jet 31 o formed at the front end and an open rear end. A metal cylindrical nozzle cover 32 having a communication hole 32o communicating with the jet port 31o at the tip, a nozzle tail 33 connected to the rear end of the nozzle body 31 together with a seal ring 34, and a nozzle tail 34 A hose adapter 35 to be connected. One end of a bendable hose 37, 38 is connected to the hose adapter 35, and a switching valve is connected to the other end of the hose 37, 38. In the present embodiment, one of the hoses 37 and 38 is used as a powerful cleaning hose having a high cleaning strength, and the other hose is used as a mild cleaning hose having a low cleaning strength. The washing water supplied from the hoses 37 and 38 to the hose adapter 35 passes through another path partitioned by the partition tube 36 and the like, and then is guided to the same jet port 31o and jetted from the jet port 31o. The nozzle tail 34 is provided with a slider portion 33s and two projections 33p that protrude in opposite directions in the left-right direction. The local cleaning nozzle 30 can be advanced and retracted in the front-rear direction by the slider portion 33 s and the two protruding portions 33 p being guided by the unit case 21 and the center plate 25, respectively.

  The nozzle drive units 40 and 140 are disposed behind the local cleaning nozzles 30 and 130. As shown in FIG. 4, the nozzle drive unit 40 includes a rack 41, a pinion gear 42 that meshes with the rack 41, and a motor 43 that rotationally drives the pinion gear 42. The rack 41 is a bendable band-shaped member (flexible rack), and one end thereof is connected to the slider portion 33 s of the local cleaning nozzle 30. The nozzle drive unit 40 can advance and retract the local cleaning nozzle 30 together with the rack 41 by rotating and driving the pinion gear 42 by the motor 43. The nozzle drive unit 140 includes a rack 41, a pinion gear 42, and a motor 43 that are the same as the nozzle drive unit 40, and each configuration is formed to be bilaterally symmetric with each configuration of the nozzle drive unit 40. The description of each configuration of the nozzle drive unit 140 is omitted because it overlaps with the description of each configuration of the nozzle drive unit 40.

  The unit cases 21 and 121 are configured as support members that support the local cleaning nozzles 30 and 130 so as to advance and retreat. FIG. 6 is an external perspective view showing an external appearance in a state where the local cleaning nozzle 30 is accommodated in the unit case 21. As shown in the figure, an annular portion 21r through which the local cleaning nozzle 30 can penetrate is formed at the front end portion of the unit case 21, and a motor to which the motor 43 of the nozzle drive unit 40 is attached at the rear end portion of the unit case 21. A mounting portion 21m is formed. A semi-cylindrical portion 21 h that covers the outer peripheral surface of the local cleaning nozzle 30 in a semi-cylindrical shape is formed between the front end portion and the rear end portion of the unit case 21. On the upper surface on the rear end side of the semi-cylindrical portion 21h, a raised portion 21ha that is raised upward is provided so that a predetermined space 22 is formed between the outer peripheral surface of the local cleaning nozzle 30 and the upper surface. The space 22 is a space for allowing the bent portions of the hoses 37 and 38 that follow the advance of the local cleaning nozzle 30 to escape upward when the local cleaning nozzle 30 moves forward. In the present embodiment, the raised portion 21ha is designed to have substantially the same height as the motor mounting portion 21m at the highest position when the nozzle unit 20 is installed in the housing of the toilet seat device body 11. Thereby, it is suppressed that the height of the nozzle unit 20 expands. In addition, on the inner surface of the semi-cylindrical portion 21h, as shown in FIG. 3, a rack guide groove that guides the slider portion 33s of the local cleaning nozzle 30 and the rack 41 connected to the slider portion 33s so as to be movable in the front-rear direction. 21 g (concave groove) is formed.

  Further, as shown in FIGS. 4 and 6, a plurality of engaging claws 21 c are formed at the end in the circumferential direction of the semi-cylindrical portion 21 h of the unit case 21. The unit case 21 is attached to the center plate 25 by engaging a plurality of engaging claws 21c on the right side of the center plate 25 in FIG.

  As shown in FIG. 4, the unit case 121 is formed so as to be substantially symmetrical with respect to the center plate 25. The unit case 121 has an annular portion 21r, a semi-cylindrical portion 21h, a rack guide groove 21g, and a motor similar to the center plate 25. It has a mounting portion 21m. A plurality of engaging claws 21 c similar to the unit case 21 are formed at the end in the circumferential direction of the semi-cylindrical portion 21 h of the unit case 121. The unit case 121 is attached to the center plate 25 by engaging a plurality of engaging claws 21c on the left side of the center plate 25 in FIG. That is, the two unit cases 21 and 121 are attached to one center plate 25 from the left and right sides by the respective engaging claws 21c, cover the outer periphery of the local cleaning nozzles 30 and 130, and freely move the local cleaning nozzles 30 and 130 back and forth. To support.

  The center plate 25 is disposed between the local cleaning nozzles 30 and 130 and guides the forward and backward movement of the local cleaning nozzles 30 and 130. FIG. 7 is an external perspective view showing the external appearance of the center plate 25. A plurality of engaged portions 25ca to be engaged with a plurality of engaging claws 21c of the unit case 21 are formed on the right side of the upper surface and the lower surface of the center plate 25. A plurality of engaged portions 25cb with which the plurality of engaging claws 121c of the unit case 121 are engaged are formed. In addition, two nozzle guide grooves that extend in parallel with each other and are fitted to two protrusions 33p provided on the nozzle tails 33 of the local cleaning nozzles 30 and 130 on both side surfaces of the center plate 25 in the left-right direction. 25 g is formed. In this embodiment, the nozzle guide groove 25g is formed by an L-shaped groove having an L-shaped cross section, as shown in FIGS. Further, on both side surfaces of the center plate 25 in the left-right direction, the contact surfaces are curved along the outer peripheral surface so as to be in sliding contact with the outer peripheral surfaces of the local cleaning nozzles 30 and 130 between the two nozzle guide grooves 25g. A ladder-like rib 25s is also provided. In addition, an accommodation portion 25r for accommodating the rack 41 and the pinion gear 42 is formed at the rear end portion of the center plate 25. The accommodating portion 25r has an inner peripheral surface curved in an arc shape so as to form a predetermined gap with the outer peripheral surface of the pinion gear 42, and the rack 41 includes the outer peripheral surface of the pinion gear 42 and the inner periphery of the accommodating portion 25r. It can reciprocate in the gap with the surface.

  As shown in FIG. 4, the nozzle cleaner 50 is provided with two jet outlets 50 oa and 50 OB from which cleaning water can be jetted. One end of a hose (not shown) is connected to the nozzle cleaner 50, and a switching valve is connected to the other end of the hose. The nozzle cleaner 50 is attached to the upper surface of the tip of the center plate 25, and through openings 25oa and 25ob formed in the upper surface and openings 21o (see FIG. 6) formed in the unit cases 21 and 121. Washing water is ejected to the local washing nozzles 30 and 130, respectively. The nozzle cleaner 50 is configured to eject the cleaning water from the outlets 50 oa and 50 obs around the outlet 31 o of the local cleaning nozzles 30 and 130 when the local cleaning nozzles 30 and 130 are accommodated in the unit cases 21 and 121. Can be washed. Further, the nozzle cleaning device 50 can clean the entire outer periphery of the local cleaning nozzles 30 and 130 by ejecting cleaning water from the jet ports 50oa and 50ob while the local cleaning nozzles 30 and 130 advance or retreat.

  In the nozzle unit 20 configured in this way, as shown in FIG. 2, two local cleaning nozzles 30 and 130, two nozzle drive units 40 and 140, two unit cases 21 and 121, and one center plate 25 In addition to the configuration of two nozzles by one nozzle cleaning device 50, as shown in FIG. 8, the configuration of the two nozzles, the local cleaning nozzle 130, the nozzle drive unit 140, and the unit case By omitting 121, a single nozzle configuration can be obtained. As described above, the nozzle plate groove 25g into which the projections 33p of the local cleaning nozzles 30 and 130 are respectively fitted is provided on both side surfaces of the center plate 25 in the left-right direction. In this case, the forward and backward movement of the local cleaning nozzle 30 can be guided using the nozzle guide groove 25g on one side, and in the case of the two nozzle configuration, the local cleaning nozzle 30 is used using the nozzle guide groove 25g on both sides. , 130 can be guided. In this way, the unit cases 21 and 121 are attached to the common center plate 25 from both the left and right sides, and the configuration is such that the forward and backward movement of the local cleaning nozzles 30 and 130 is guided by the left and right side surfaces of the center plate 25. It is possible to easily cope with a change in the specification of the number of nozzles while making the nozzle compact. Since the nozzle cleaning device 50 has two outlets 50oa and 50ob, when the nozzle unit 20 has a single nozzle configuration, the nozzle cleaning device 50 is opposite to the outlet 50oa that is jetted to the local cleaning nozzle 30. The jet outlet 50ob is blocked so that the washing water cannot be jetted.

  In the nozzle unit 20 of the embodiment described above, the unit cases 40 and 140 that respectively support the local cleaning nozzles 30 and 130 can be attached from both the left and right sides, and the center plate 25 provided with the nozzle guide grooves 25g on the left and right sides is provided. Prepare. The nozzle unit 20 includes one local cleaning nozzle 30 and one unit case 21, and guides one local cleaning nozzle 30 so as to be able to advance and retreat using the nozzle guide groove 25g on one side. can do. Also, the nozzle unit 20 is provided with two local cleaning nozzles 30 and 130 and two unit cases 21 and 121 arranged side by side so that the two local cleaning nozzles 30 and 130 can be advanced and retracted using the nozzle guide grooves 25g on both sides. By guiding, it can be set as the structure of 2 nozzles. Since the center plate 25 guides the side surfaces of the local cleaning nozzles 30, 130, the height direction of the nozzle unit 20 can be made compact as compared with the one that guides the upper side of the local cleaning nozzles 30, 130. Further, since the center plate 25 is shared by the configuration of one nozzle and the configuration of two nozzles, it is possible to easily cope with a change in the specification of the number of local cleaning nozzles.

  Further, the nozzle unit 20 of the embodiment is provided with two nozzle guide grooves 25g extending in parallel with the center plate 25, and two protrusions respectively fitted to the two nozzle guide grooves 25g in the local cleaning nozzles 30 and 130. A portion 33p is provided. Thereby, rattling between the local cleaning nozzles 30 and 130 and the center plate 25 can be reduced, and the forward and backward movement of the local cleaning nozzles 30 and 130 can be guided more smoothly.

  Further, in the nozzle unit 20 of the embodiment, the local cleaning nozzles 30 and 130 are provided with a slider portion 33 s that protrudes on the opposite side of the center plate 25 in the left-right direction and is coupled to the rack 41. A guide groove 21g is provided for fitting the slider portion 33s to guide the movement of the slider portion 33s and the rack 41. As a result, while the height direction of the nozzle unit 20 is made compact, the forward and backward movement of the local cleaning nozzles 30 and 130 can be guided on both sides in the left-right direction, and the local cleaning nozzles 30 and 130 can be moved forward and backward more smoothly.

  In the present embodiment, the local cleaning nozzles 30 and 130 are provided with the metal nozzle cover 32, but may not be provided with the nozzle cover 32.

  In the embodiment, two nozzle guide grooves 25g of the center plate 25 and two protrusions 33p of the local cleaning nozzles 30 and 130 fitted to the nozzle guide grooves 25g are provided. Three or more may be provided.

  In the embodiment, the nozzle guide groove 25g of the center plate 25 is formed by an L-shaped groove having a L-shaped cross section, but is not limited to this, for example, a semicircular shape, a triangular shape, Any other cross-sectional shape may be used as long as the protrusion 33p of the local cleaning nozzles 30 and 130 can be fitted, such as a rectangular shape, a U shape, and a C shape.

  In the embodiment, the nozzle cleaning device 50 capable of ejecting cleaning water is attached to each of the local cleaning nozzles 30 and 130 on the center plate 25. However, a nozzle cleaning device is separately provided for the local cleaning nozzles 30 and 130. It may be a thing. Further, the nozzle cleaner may be omitted.

  In the embodiment, the unit cases 21 and 121 are each formed by a single member, but may be formed by two or more members.

  In the embodiment, the rack 41 of the nozzle drive units 40 and 140 is configured as a flexible rack that can be bent, but is not limited thereto, and may be formed so as not to be bent.

  The correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problems will be described. In the embodiment, the local cleaning nozzles 30 and 130 correspond to “nozzles”, the unit cases 21 and 121 correspond to “support members”, the nozzle drive units 40 and 140 correspond to “drive members”, and the center plate 25. Corresponds to a “guide member”. Further, the nozzle guide groove 25g corresponds to a “guide portion”, and the protrusion 33p corresponds to a “projection portion”. The nozzle guide groove 25g also corresponds to a “guide groove”. The rack 41 corresponds to a “rack”, the pinion gear 42 corresponds to a “pinion gear”, the motor 43 corresponds to a “motor”, the slider portion 33 s corresponds to a “slider”, and the rack guide groove 21 g corresponds to a “first” gear. It corresponds to “2 guide grooves”.

  The correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problem is the same as that of the embodiment described in the column of means for solving the problem. Therefore, the elements of the invention described in the column of means for solving the problems are not limited. That is, the interpretation of the invention described in the column of means for solving the problem should be made based on the description of the column, and the embodiment of the invention described in the column of means for solving the problem is described. It is only a specific example.

  As mentioned above, although the form for implementing this invention was demonstrated using embodiment, this invention is not limited to such embodiment at all, In the range which does not deviate from the summary of this invention, it is with various forms. Of course, it can be implemented.

  The present invention can be used in the manufacturing industry of sanitary washing toilet seat devices.

  1 toilet bowl, 10 sanitary washing toilet seat device, 11 toilet seat device body, 12 toilet seat, 13 toilet lid, 14 operation panel, 15 seating sensor, 20 nozzle unit, 21, 121 unit case, 21o opening, 21c engaging claw, 21r annular portion 21h semi-cylindrical part, 21ha raised part, 21m motor mounting part, 21g rack guide groove, 21o opening, 25 center plate, 25ca, 25cb engaged part, 25g nozzle guide groove, 25s rib, 25r accommodating part, 25oa, 25-ob opening, 30, 130 local cleaning nozzle, 31 nozzle body, 31o outlet, 32 nozzle cover, 32o communication hole, 33 nozzle tail, 33s slider, 33p protrusion, 34 seal ring, 35 hose adapter, 40,140 nozzle Drive unit, 41 racks, 4 2 Pinion gear, 43 motor, 50 nozzle cleaner.

Claims (4)

A nozzle unit used in a sanitary washing device,
A nozzle capable of jetting cleaning water;
A support member that supports the nozzle so as to advance and retreat; and
A drive member for moving the nozzle back and forth;
A guide member capable of attaching the support member from both left and right sides;
With
The nozzle and the support member may be provided one by one or may be provided two by two in the left-right direction,
The guide member has guide portions for guiding the forward / backward movement of the nozzle on both left and right sides, and when the nozzle and the support member are provided one by one, the one support member is attached to the one side When the guide part guides the forward / backward movement of the nozzle and two nozzles and the support member are provided, the two support members are attached, and the two guide parts on both sides advance and retreat the two nozzles. Guide each one,
Nozzle unit. The nozzle unit according to claim 1,
The guide portion is a guide groove extending in the forward / backward direction of the nozzle,
The nozzle has, at a rear end portion, a projection that engages with the guide groove and protrudes slidably along the guide groove.
Nozzle unit. The nozzle unit according to claim 2,
The protrusion and the guide groove are each provided with a predetermined number of two or more at a predetermined interval.
Nozzle unit. The nozzle unit according to any one of claims 1 to 3,
The drive member includes a rack, a pinion gear that meshes with the rack, and a motor that drives the pinion gear,
The nozzle has a slider that protrudes to the opposite side of the guide member in the left-right direction and is coupled to the rack.
The support member has a second guide groove that fits with the slider and guides the movement of the slider and the rack.
Nozzle unit.

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