Toilet seat attachment

Abstract

To provide a toilet seat attachment that can attach a desired toilet seat device to various types of toilet bowls and can stably fix the toilet seat device to the toilet bowl. [Solution] A toilet seat attachment 1 comprises a base plate 2 attached to a fixed plate 53 that fixes the toilet seat device to a toilet 60, a plurality of first mounting members 3 that attach the base plate 2 to the fixed plate 53, and support members 4, 5 that are arranged between the base plate 2 and the toilet 60 and support the base plate 2, the base plate 2 having a first engagement portion 6 formed on the upper surface thereof and a pair of insertion holes 8, 8 for inserting screw bodies 70, 70, the upper end of the first mounting member 3 being engaged with a retaining hole in the fixed plate 53, and the lower end of the first mounting member 3 being engaged with the first engagement portion 6.

Description

[Technical field]

[0001] The present invention relates to a toilet seat attachment for attaching a toilet seat device to a toilet bowl, and more particularly to a toilet seat attachment that enables a toilet seat device to be attached to various types of toilet bowls. [Background technology]

[0002] Conventionally, a toilet seat device with a flushing function is fixed to a Western-style toilet bowl via a fixing plate. The fixing method is to align a pair of bolt holes provided in the fixing plate with a pair of fixing holes formed in the rear part of the toilet bowl, insert fixing bolts into the bolt holes and the fixing holes, respectively, and tighten them with nuts. Of the above, the spacing between the pair of fixing holes in a toilet is standardized by a standard, so it has generally been possible to retrofit various types of toilet seat devices to existing toilets. However, for example, when the toilet is made in a foreign country, the intervals between the fixing holes are wide, making it difficult to retrofit the toilet seat device. In response to this, in recent years, technology has been developed that allows a toilet seat apparatus to be retrofitted to a toilet having different intervals between the fixing holes, and ideas relating to this have already been disclosed.

[0003] Patent Document 1 discloses an idea for a toilet seat with a flushing function, which is attached to toilets of different sizes and types. The device disclosed in Patent Document 1 is a toilet seat with a flushing function composed of a toilet seat, a toilet seat cover, and a connector for attaching the toilet seat to a toilet bowl, the connector including a connection part and an adjustable coupling plug and nut on the underside of the connection part, the connection part having a wedge-shaped groove on its underside, and the coupling plug having a disc-shaped member, an adapter that protrudes upward from near the periphery of the disc-shaped member and engages with the wedge-shaped groove, and a threaded portion that protrudes downward from the disc-shaped member and has a lower end onto which a nut is screwed. In this device, the adapter that is engaged with the wedge groove moves back and forth along the wedge groove. Also, the adapter rotates eccentrically because it protrudes from the periphery of the disk-shaped member. Therefore, the threaded portion of the connecting plug can be inserted into the mounting holes with various intervals, making it possible to mount the toilet seat on toilets of different sizes and types. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 3057253 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the device of Patent Document 1 requires the installation of a new toilet seat with a flushing function that includes a connector, and therefore a toilet seat device other than this toilet seat with a flushing function cannot be attached to an existing toilet seat. Therefore, it may not be possible to install the desired toilet seat device. Also, even if an existing toilet seat device is modified to add a connector, the modification will incur additional costs and labor. In addition, foreign-made toilets have a large front-to-back size and a variety of different shapes for the top surface of the toilet, in addition to the distance between the fixing holes. Therefore, in the device of Patent Document 1, there are places where the toilet bowl floats up from the top surface of the toilet seat, which may cause localized excessive weight on the toilet seat or wobble when the user sits on it.

[0006] The present invention has been made in response to such conventional circumstances, and aims to provide a toilet seat attachment that can be attached to various types of toilets without modifying the desired toilet seat device, and that can stably fix the toilet seat device to the toilet. [Means for solving the problem]

[0007] In order to achieve the above object, the first invention comprises a base plate attached to a fixing plate that fixes a casing constituting a toilet seat device to a toilet bowl and positioned between the fixing plate and the toilet bowl, and one or more pair of first mounting members that attach the base plate to the fixing plate, wherein the fixing plate has a pair of retaining holes for inserting and holding a pair of fixing members that are respectively inserted into a pair of fixing holes already provided at the rear of the toilet bowl, the base plate is characterized in that a first engagement portion is formed on the upper surface of the base plate and a pair of insertion holes for inserting the pair of fixing members are formed respectively through the base plate, and the upper end of the first mounting member is engaged with the retaining hole and the lower end of the first mounting member is engaged with the first engagement portion.

[0008] In the invention having such a configuration, the toilet seat device includes at least a toilet seat to be placed on the toilet bowl, and a casing in which an opening and closing structure for holding the toilet seat so that it can be opened and closed is provided. The casing may or may not include a cleaning device including a nozzle, electronic components, etc. The fixing plate is a plate-like member fixed to the bottom surface of the casing. The fixing plate has a retaining hole that is elongated along the depth direction of the fixing plate so that the casing can be fixed to be movable in the front-rear direction of the toilet seat. A screw is used as the fixing member.

[0009] The base plate is a generally rectangular plate that is fixed to the underside of the fixing plate via the first mounting member. The distance between the pair of insertion holes formed in the base plate is equal to the distance between the fixing holes. This is because the pair of insertion holes are provided to insert a pair of fixing members that are inserted into a pair of fixing holes provided in the toilet. Next, the first mounting member may have a shape that allows it to be locked or fitted into the retaining hole. Specifically, the cross section along the thickness direction of the first mounting member in the width direction of the retaining hole may have a tapered shape that narrows from the upper end to the lower end of the first mounting member, or the symmetrically opposing sides of this tapered shape may have a stepped shape. In addition, when the retaining hole of the fixing plate is formed long along the depth direction of the fixing plate, the first attachment member is disposed at any position in the depth direction of the retaining hole. Furthermore, the number of first attachment members per retaining hole may be one or more.

[0010] The first engaging portion has a shape corresponding to the shape of the lower end of the first mounting member.Furthermore, it is preferable that the first engaging portion has a shape that prevents the base plate from easily falling off the fixing plate.

[0011] In the invention having the above configuration, the distance between the insertion holes in the base plate is equal to the distance between the fixing holes in the toilet, so that when a pair of fixing members are inserted into a pair of insertion holes, the pair of fixing members are easily inserted into a pair of fixing holes. Therefore, the base plate is attached to the underside of the fixing plate via the first attachment member, and the fixing member is then inserted into the insertion hole and the fixing hole and fixed, whereby the toilet seat apparatus is attached to the toilet bowl.

[0012] The second invention is characterized in that, in the first invention, the first engagement portion is a groove portion, and the groove portion is provided along the depth direction of the base plate, which coincides with the front-to-rear direction of the toilet bowl. In the invention having such a configuration, in addition to the function of the first invention, since the first locking portion to which the lower end of the first mounting member is locked is a groove portion, the first mounting member can slide along the depth direction of the base plate, and therefore the position of the fixing plate relative to the base plate can be changed in the depth direction of the base plate.

[0013] The third invention is characterized in that, in the first or second invention, it is provided with a support member that is arranged between the base plate and the toilet bowl and supports the base plate, the base plate having a second engagement portion formed on the underside of the base plate, and the support member has an upper end that is engaged with the second engagement portion.

[0014] In the invention configured as described above, the upper end of the support member is engaged with the second engaging portion formed on the lower surface of the base plate, so that the support member is disposed between the lower surface of the base plate and the upper end surface of the rear part of the toilet seat. In addition, the support member may have a tapered shape that widens from the upper end to the lower end in the cross section along the thickness direction of the support member in the width direction of the base plate, or the symmetrically opposing sides of the tapered shape may be stepped. Furthermore, the support member may have an outer edge that is trapezoidal or rectangular when viewed from the side. The number of support members may be one or more.

[0015] Next, the second locking portion may be, for example, a groove provided along the depth direction of the base plate, or may be a plurality of recesses provided at intervals along the depth direction of the base plate, whereby the position of the support member relative to the base plate is changed in the depth direction of the base plate. The second locking portion has a shape that corresponds to the shape of the upper end of the support member.Furthermore, it is preferable that the second locking portion has a shape that prevents the support member from easily falling off the base plate. In the invention having the above configuration, in addition to the function of the first or second invention, the support member prevents, for example, interference between the nozzle cover and the toilet bowl. In addition, the toilet seat can be tilted so that any part of the back surface of the toilet seat abuts on the upper end surface of the toilet bowl. The inclination of the toilet seat can be adjusted by increasing or decreasing the thickness and number of the support members, as well as by changing the position of the support members relative to the second engagement portion.

[0016] The fourth invention is characterized in that, in the first or second invention, a second mounting member is provided instead of the first mounting member, and the second mounting member has an upper end engaged with the retaining hole and an mounting insertion hole for inserting the fixing member formed through the second mounting member. In an invention having such a configuration, the toilet seat device is attached to the toilet seat by aligning the mounting insertion hole of the second mounting member engaged with the retaining hole, the insertion hole of the base plate, and the fixing hole of the toilet, and inserting the fixing member through them.

[0017] In the first or second invention, the base plate is attached to the fixed plate via the first locking portion. In contrast, in the third invention, the lower end of the second mounting member is not locked to the first locking portion of the base plate, so the base plate is attached to the fixed plate by the mounting insertion hole of the second mounting member and the fixing member. Furthermore, when the retaining hole of the fixing plate is formed long along the depth direction of the fixing plate, the second mounting member is disposed at any position in the depth direction of the retaining hole. Other than this, the operation of the fourth invention is the same as that of the first or second invention.

[0018] The fifth invention is characterized in that, in the fourth invention, the toilet seat is provided with a lift member that is attached to an existing cushion on the underside of the toilet seat, and the lift member supports the toilet seat by abutting its outer bottom surface against the upper end surface of the toilet bowl. In the invention having such a configuration, as described above, the provision of the base plate may cause the whole or part of the underside of the toilet seat to lift up from the toilet seat. Therefore, if the lift member is attached to the cushion in a position close to the part that is lifted up, the outer bottom surface of the support member comes into contact with the upper end surface of the toilet seat when the toilet seat is tilted so that it can be sat on, and the toilet seat is supported by the lift member. In the invention of the above configuration, in addition to the fourth invention, since the toilet seat is supported by the lift member, it is difficult for localized excessive weight to be applied to the toilet seat when a user sits on it, thereby preventing damage or rattling due to excessive bending of the toilet seat. Effect of the Invention

[0019] According to the first aspect of the present invention, the toilet seat device can be easily attached to the toilet bowl via the base plate, the first attachment member, and the existing fixing plate. In other words, there is no need to modify the existing toilet seat device, and therefore no cost or effort is required for modification. In addition, according to the first invention, the distance between the insertion holes of the base plate is equal to the distance between the fixing holes of the toilet, so the base plate can be reliably attached to the toilet. Even if the distance between the fixing holes varies, the distance between the insertion holes can be designed accordingly, so the base plate can be attached to various types of toilets. Furthermore, since the fixing plate is attached to the base plate via the first engaging portion, the desired toilet seat device can be attached to an existing toilet bowl.

[0020] According to the second invention, in addition to the effects of the first invention, the first locking portion changes the position of the fixing plate in the depth direction of the base plate, so the position of the toilet seat device can be adjusted in the front-rear direction of the toilet. Also, the lower end of the first mounting member can be easily slid along the first locking portion. Therefore, the toilet seat device can be attached to various types of toilets in detail, and has good versatility.

[0021] According to the third invention, in addition to the effects of the first or second invention, the support member can prevent interference caused by attaching the toilet seat attachment and create a place where the toilet seat abuts against the toilet bowl. Therefore, the function of the toilet seat device before the toilet seat attachment is attached is not hindered and stability can be improved when a user sits on the toilet seat.

[0022] According to the fourth invention, in addition to the effects of the first or second invention, the toilet seat device is attached to the toilet bowl by inserting a fixing member into the mounting insertion hole or the like of the second mounting member, thereby achieving effects similar to those of the first invention. In addition, when the second mounting member is disposed at an arbitrary position in the depth direction of the retaining hole, the position of the fixing plate relative to the base plate is changed in the depth direction of the base plate. Therefore, in this case, the fourth aspect of the invention can achieve the same effect as the second aspect of the invention.

[0023] According to the fifth invention, in addition to the effects of the fourth invention, the lift member prevents damage to the toilet seat due to bending, and also makes it possible to prevent unexpected shaking when a user sits on the toilet seat. [Brief description of the drawings]

[0024] [Figure 1] FIG. 2 is an exploded perspective view of the toilet seat attachment according to the embodiment. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] 13 is a front view showing a state in which the base plate, the first mounting member, the first locking portion, and the fixing member are attached to the fixing plate. FIG. [Diagram 5] 5 is a view taken in the direction of the arrow A in FIG. 4. [Figure 6] 5 is a view taken in the direction of the arrow B in FIG. 4. [Figure 7] 1 is a bottom view of a toilet seat attachment according to an embodiment attached to a casing of a cleaning toilet seat device. FIG. [Figure 8] FIG. 1 is a front view of a cleaning toilet seat device attached to a toilet bowl via a toilet seat attachment according to an embodiment. [Figure 9] 9 is a view taken in the direction of the arrow C in FIG. 8. [Figure 10] FIG. 1 is a right side view of a cleansing toilet seat device attached to a toilet bowl via a toilet seat attachment according to a first modified example of the embodiment. [Figure 11] FIG. 11 is an exploded perspective view of a toilet seat attachment according to a second modified example of the embodiment. [Figure 12]FIG. 11 is a perspective view of a support member constituting a toilet seat attachment according to a second modified example of the embodiment, when attached to a toilet seat. [Figure 13] FIG. 11 is a right side view of a support member constituting a toilet seat attachment according to a second modified example of the embodiment, when attached to a toilet bowl. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS EXAMPLES

[0025] A toilet seat attachment according to an embodiment of the present invention will be described in detail with reference to Figures 1 to 13. Figure 1 is an exploded perspective view of the toilet seat attachment according to the embodiment. As shown in Fig. 1, a toilet seat attachment 1 according to the embodiment is a device for attaching a cleansing toilet seat device to a toilet bowl 60, and includes a base plate 2, a plurality of first attachment members 3, and a plurality of support members 4 and 5. Note that the cleansing toilet seat device and the toilet bowl 60 are existing devices and are not included in the invention of this application. Of the toilet seat attachment 1, the base plate 2 is attached to the fixed plate 53. The first mounting member 3 is a member for fixing the base plate 2 to the fixed plate 53, and is disposed above the fixed plate 53. The support members 4 and 5 are members for lifting and supporting the base plate 2 from the toilet bowl 60, and are disposed between the base plate 2 and the toilet bowl 60. Moreover, the base plate 2, the first mounting member 3, and the support members 4 and 5 are made of, for example, resin, and are manufactured using a 3D printer.

[0026] Next, the cleaning toilet seat device will be briefly described. The cleaning toilet seat device 50 (see Figs. 8 and 9) comprises a casing 51 that houses a cleaning device (not shown), and a toilet seat 52 that is held by the casing 51 so that it can be opened and closed. Furthermore, before the base plate 2 is provided, the casing 51 is attached to the rear 60b of the toilet 60 via the fixing plate 53 and the screw bodies 70, 70 shown in Fig. 1. Therefore, the fixing plate 53 and the screw bodies 70, 70 are also existing parts and are not included in the present invention. Fixing holes 60a, 60a through which the threaded bodies 70, 70 are inserted are formed in advance in the rear portion 60b. The distance between the axial centers of the fixing holes 60a, 60a is d 60 The width direction W of the base plate 2 is a straight line L connecting the axial centers of the fixing holes 60a, 60a. 60 It is designed to be parallel to

[0027] Furthermore, the configuration of the base plate will be described with reference to Fig. 2 and Fig. 3. Fig. 2 is a plan view of the base plate. Fig. 3 is a bottom view of the base plate. Note that the same reference numerals are used in Fig. 2 and Fig. 3 to denote the components shown in Fig. 1, and the description thereof will be omitted. As shown in FIG. 2, the base plate 2 is a flat plate having a substantially rectangular shape bounded by long sides 2a and 2b and short sides 2c and 2d perpendicular to the long sides 2a and 2b. The long sides 2a and 2b are in the width direction W of the base plate 2, and coincide with the width direction of the cleaning toilet seat device 50. In addition, a notch 2n is formed near the center of the long side 2a to avoid interference with a nozzle cover 51c (see FIG. 7) provided on the casing 51. The short sides 2c and 2d are in the depth direction D of the base plate 2, which coincides with the front-rear direction of the toilet seat cleaning device 50. The thickness direction H of the base plate 2 is perpendicular to both the width direction W and the depth direction D, and coincides with the up-down direction of the toilet seat cleaning device 50.

[0028] Furthermore, the base plate 2 has a first locking portion 6, a second locking portion 7 (see FIG. 3), an insertion hole 8, a washer insertion hole 9, and a recess 10 formed therein. The first locking portion 6 is a groove portion formed in the upper surface 2e of the base plate 2. Two first locking portions 6 are provided along the depth direction D of the base plate 2. This is because the fixed plate 53 is provided with a pair of holding holes 54, 54 (see FIG. 5).

[0029] The through-holes 8 are holes that penetrate the base plate 2 in the thickness direction H. Two through-holes 8 are formed in the width direction W of the base plate 2. The distance d7 between the axial centers of the through-holes 8, 8 is smaller than the distance d 60 (See FIG. 1). Furthermore, the straight line L7 connecting the axial centers of the insertion holes 8, 8 is equal to the straight line L 60 (See Figure 1)

[0030] The washer insertion hole 9 is a space necessary for installing a washer 71 (see FIG. 1) for preventing loosening of the screw body 70, and has opening ends 9a that open to the short sides 2c, 2d of the base plate 2. The width of the washer insertion hole 9 in the depth direction D and the height in the thickness direction H are equal to the diameter and thickness of the washer 71, respectively. The opposite end of the open end 9a is a closed end 9b. When the washer 71 reaches the closed end 9b, the screw body 70 (see FIG. 1) is inserted into the center hole of the washer 71.

[0031] The recess 10 is provided to prevent the upper surface 2e of the base plate 2 from interfering with the linear protrusion 51b (see FIG. 7) formed on the bottom surface 51a of the casing 51. Therefore, if the protrusion 51b is not formed on the bottom surface 51a, the recess 10 is omitted.

[0032] 3, the second locking portions 7 are grooves formed on the lower surface 2f of the base plate 2. Three second locking portions 7 are provided along the depth direction D of the base plate 2. The number of second locking portions 7 may be other than three, but an increase in the number allows the support members 4 and 5 to support the base plate 2 more strongly.

[0033] Next, the configuration of the first mounting member and the support member will be described with reference to Fig. 4. Fig. 4 is a front view of the base plate, the first mounting member, the first locking portion, and the fixing member attached to the fixing plate. Note that the same reference numerals are used in Fig. 4 for the components shown in Figs. 1 to 3, and the description thereof will be omitted. As shown in Fig. 4, the first mounting member 3 has a cross section in the width direction W of the base plate 2 on a surface (hereinafter referred to as the WH surface) along the thickness direction H of the base plate 2, which is surrounded by the upper end 3a, the lower end 3b, and the sides included in the side ends 3c and 3d. The upper end 3a is a flat surface, and the lower end 3b has a locking protrusion T3 in the center that is upside down and has an inverted T shape. The first locking portion 6 also has a cross section in the WH surface that has an inverted T shape.

[0034] The side ends 3c and 3d are connected to the upper end 3a by an upper step D 31 and the lower section D connected to the lower end 3b 32 It forms a stepped shape consisting of: Therefore, the first mounting member 3 has an upper portion D including an upper end 3a. 31 The upper portion D is engaged with the retaining hole 54 of the fixed plate 53, and the engaging projection T3 of the lower end 3b is engaged with the first engaging portion 6. 31 And the lower part D 32 The thickness of each of these is arbitrarily designed.

[0035] As described above, the support members 4 and 5 are members for lifting and supporting the base plate 2 from the toilet bowl 60. Specifically, as shown in Fig. 9, since the nozzle cover 51c protrudes downward from the bottom surface 51a of the casing 51, there is a risk that the nozzle cover 51c will interfere with the toilet bowl 60 depending on the position of the base plate 2 in the front-rear direction of the cleaning toilet seat device 50. Therefore, the support members 4 and 5 are provided to avoid this interference. Another reason is that by installing the base plate 2, the casing 51 is raised higher than before, and there is a risk that the whole or part of the back surface 52c of the toilet seat 52 will be raised above the upper end surface 60c of the toilet bowl 60. Such a raised position will cause the toilet seat 52 to bend excessively or to wobble when in use. Therefore, the inclination of the back surface 52c in the front-to-rear direction of the toilet seat 52 is adjusted to eliminate the raised position.

[0036] The support member 4 has a vertical cross section on the WH surface that is bounded by the upper end 4a, the lower end 4b, and the sides included in the side ends 4c and 4d. The upper end 4a has a T-shaped locking projection T4 at its center, and the lower end 4b is a flat surface. The second locking portion 7 also has a T-shaped vertical cross section on the WH surface. Therefore, the support member 4 has the locking projection T4 on the upper end 4a locked to the second locking portion 7. The side ends 4c and 4d are parallel to each other and have the same thickness, which can be arbitrarily designed. The thickness of side ends 5c, 5d (see FIG. 6) of the support member 5 is also thicker than the thickness of side ends 4c, 4d of the support member 4, and a T-shaped locking protrusion T5 on the lower end 5b is locked to the second locking portion 7. Other than this, the configuration and function of the support member 5 are similar to those of the support member 4, so illustration of the support member 5 is omitted.

[0037] Furthermore, the configuration of the fixing plate and the procedure for attaching the base plate to the fixing plate will be described with reference to Figures 5 and 6. Figure 5 is a view seen from the direction of the arrow A in Figure 4. Figure 6 is a view seen from the direction of the arrow B in Figure 4. Note that the components shown in Figures 1 to 4 are given the same reference numerals in Figures 5 and 6, and their description will be omitted. As shown in Fig. 5, the fixed plate 53 is a plate-like member fixed to the bottom surface 51a (see Fig. 7) of the casing 51, and has long sides 53a, 53b and short sides 53c, 53d. It is assumed that the width direction W of the base plate 2 is parallel to the long sides 53a, 53b, and the depth direction D is parallel to the short sides 53c, 53d. In addition, the long side 53a has a notch 53n near the center.

[0038] Furthermore, the fixing plate 53 is provided with a pair of retaining holes 54, 54. The retaining holes 54, 54 are structured to receive and hold a pair of screw bodies 70, 70 which are respectively inserted into fixing holes 60a, 60a of the toilet 60 (see FIG. 1). In detail, the retaining hole 54 has an elongated shape along the depth direction of the fixing plate 53 (i.e., the depth direction D of the base plate 2) so that the casing 51 can be fixed movably in the front-rear direction of the toilet bowl 60 (i.e., the depth direction D of the base plate 2). U is wide, and the opening width D at the bottom 53f L To narrow the gap, step surfaces 54a, 54a are provided in the thickness direction of the fixed plate 53 (that is, the thickness direction H of the base plate 2). The step surfaces 54a, 54a are formed in a sawtooth shape.

[0039] Next, the procedure for attaching the base plate 2 to the fixed plate 53 is as follows: first, the screw bodies 70, 70 are inserted into the insertion holes 8, 8. Then, two first mounting members 3 are fitted into the holding holes 54, 54. At this time, since the side ends 3c, 3d are stepped, the upper end 3a is engaged with the step surfaces 54a, 54a of the holding holes 54. Also, as shown in FIG. 4, the lower end 3b protrudes downward from the lower surface 53f. Therefore, by simultaneously sliding the two lower ends 3b for each holding hole 54 into the first locking portions 6 of the base plate 2, the two lower ends 3b are locked to the first locking portions 6. In this way, the base plate 2 is attached to the lower surface 53f of the fixing plate 53.

[0040] 6, on the lower surface 2f of the base plate 2, the support members 4 and 5 are engaged with second engaging portions 7. Furthermore, the side ends 4c and 4d of the support member 4 and the side ends 5c and 5d of the support member 5 each have a trapezoidal shape. In detail, when the support member 4 is aligned with the long side 2a and the notch 2n of the base plate 2 and the support member 5 is aligned with the long side 2b of the base plate 2 and engaged with the second engaging portion 7, the entire surface of the lower end 4b of the support member 4 and the entire surface of the lower end 5b of the support member 5 come into contact with the rear portion 60b (see FIG. 1) of the toilet bowl 60. In other words, the lower ends 4b and 5b are inclined with respect to the upper end 4a and the lower end 5b, respectively, so as to be included in the same plane.

[0041] Furthermore, the state in which the toilet seat attachment 1 is attached to the toilet seat cleaning device 50 will be described with reference to Fig. 7. Fig. 7 is a bottom view of the toilet seat attachment according to the embodiment attached to the casing of the toilet seat device. Note that the same reference numerals are used in Fig. 7 for the components shown in Figs. 1 to 6, and the description thereof will be omitted. As shown in Fig. 7, the fixed plate 53 to which the base plate 2 is attached is fixed to the bottom surface 51a of the casing 51 of the cleaning toilet seat device 50. Although not shown, a recessed area for accommodating the fixed plate 53 is provided in advance on the bottom surface 51a, so that the bottom surface 51a other than this recessed area and the lower surface 53f of the fixed plate 53 are substantially flush with each other. Also, a linear protrusion 51b is provided on the bottom surface 51a, and this protrusion 51b fits into the recess 10 (see Fig. 5) on the upper surface 2e of the base plate 2, so that the base plate 2 is parallel to the bottom surface 51a.

[0042] Next, on the underside 52c of the toilet seat 52, cushions 52d, 52d are already provided near the tip 52a of the toilet seat 52, and cushions 52e, 52e are already provided near the base end 52b of the toilet seat 52. The cushions 52d to 52e all have an oval three-dimensional shape, and the height of the cushion 52e is greater than the height of the cushion 52d.

[0043] Next, the state in which the cleaning toilet seat device is attached to the toilet bowl via a toilet seat attachment will be explained with reference to Figs. 8 and 9. Fig. 8 is a front view of the cleaning toilet seat device when attached to the toilet bowl via a toilet seat attachment according to the embodiment. Fig. 9 is a view seen from the direction of the arrow C in Fig. 8. Note that the components shown in Figs. 1 to 7 are given the same reference numerals in Figs. 8 and 9, and their explanation will be omitted. Fig. 8 shows the toilet seat in a raised state so that it cannot be sat on, and Fig. 9 shows the toilet seat in a reclined state so that it can be sat on. 8 and 9, the cleaning toilet seat device 50 is fixed to the toilet bowl 60 using screw bodies 70, 70 and nuts 72, 72 (see FIG. 9) via the fixing plate 53 and the toilet seat attachment 1. The fixing plate 53 and the first mounting member 3 are housed in the bottom surface 51a of the casing 51 and cannot be seen, but the base plate 2 and the support members 4, 5 can be seen from the outside. In addition, the nozzle cover 51c protruding downward from the casing 51 is positioned in the space in front of the cutout 2n due to the cutout 2n of the base plate 2 and the support members 4 and 5. Therefore, there is no interference between the nozzle cover 51c and the toilet bowl 60.

[0044] 9, when the user is able to sit on the toilet seat 52, the height of the cushion 52d is lower than the height of the cushion 52e. Therefore, when the lower surface 2f of the base plate 2 is parallel to the horizontal upper end surface 60c of the toilet bowl 60, only the cushion 52d floats above the upper end surface 60c. However, since the thickness of the side end 5d of the support member 5 is thicker than the thickness of the side end 4d of the support member 4, the base plate 2 is inclined so that the long side 2a of the base plate 2 is closer to the upper end surface 60c than the long side 2b. Therefore, the cushion 52d comes into contact with the upper end surface 60c. Furthermore, since the side end 4d is trapezoidal with the front end 4A and the rear end 4B of the support member 4 as the upper and lower bases, respectively, the entire surface of the lower end 4b abuts against the upper end surface 60c. That is, the lower end 4b corresponds to the longer leg of the trapezoid. The same is true for the support member 5, where the entire surface of the lower end 5b abuts against the upper end surface 60c.

[0045] As described above, according to the toilet seat attachment 1, the distance d7 between the axial centers of the insertion holes 8, 8 of the base plate 2 is shorter than the distance d 60 (see FIG. 1), the screw bodies 70, 70 can be inserted into the fixing holes 60a, 60a without any difficulty. Therefore, the toilet seat attachment 1 can be reliably attached to the existing toilet 60. Furthermore, the straight line L7 connecting the axial centers of the insertion holes 8, 8 is aligned with the straight line L 60 Since the toilet seat attachment 1 is parallel to the toilet bowl 60, the base plate 2 and the cleaning toilet seat device 50 are not arranged in a twisted manner relative to the toilet bowl 60 when the toilet seat attachment 1 is attached to the toilet bowl 60, resulting in a good appearance.

[0046] The first mounting member 3 has an upper portion D including an upper end 3a. 31 Since the locking projection T3 on the lower end 3b is engaged with the step surfaces 54a, 54a of the retaining hole 54 of the fixed plate 53 and the locking projection T3 on the lower end 3b is engaged with the first locking portion 6 of the base plate 2, the base plate 2 can be stably locked to the fixed plate 53. Furthermore, in the support members 4 and 5, the locking projections T4 and T5 are locked to the second locking portions 7, respectively, so that the support members 4 and 5 do not separate from the base plate 2 and can firmly support the base plate 2.

[0047] In addition, according to the toilet seat attachment 1, the first engagement portion 6 is a groove portion provided along the depth direction D of the base plate 2, so that the relative position of the base plate 2 with respect to the fixed plate 53 can be finely adjusted along the front-to-rear direction of the toilet 60. Since the second locking portion 7 is also a groove portion provided along the depth direction D of the base plate 2, the support members 4 and 5 can be slid along the second locking portion 7. This allows fine adjustment of the inclination with respect to the upper end surface 60c of the base plate 2. As a result, safety and comfort during use can be ensured, and deformation and damage to the toilet seat can be prevented. In addition, when the washer 71 reaches the closed end 9b, the screw body 70 is inserted into the center hole of the washer 71, so that positioning the washer 71 is not time-consuming.

[0048] Therefore, the toilet seat attachment 1 is highly versatile because the cleansing toilet seat device 50 can be attached to various types of toilets 60 in a position that does not impede the cleaning function. Also, since the cleansing toilet seat device 50 desired by the customer can be attached, high customer satisfaction can be expected. Furthermore, since no modification of the cleansing toilet seat device 50 is required for attachment, no cost or effort is required for modification, and efficient attachment is possible. In addition, the toilet seat attachment 1 can be manufactured, for example, using a 3D printer, and therefore can be manufactured and modified relatively easily.

[0049] Next, the toilet seat attachment according to the first modified embodiment of the embodiment will be described with reference to Fig. 10. Fig. 10 is a right side view of the cleansing toilet seat device attached to the toilet bowl via the toilet seat attachment according to the first modified embodiment of the embodiment. Note that the same reference numerals are used in Fig. 10 for the components shown in Figs. 1 to 9, and the description thereof will be omitted. As shown in Fig. 10, the toilet seat attachment 1A according to the first modified example of the embodiment does not have the support members 4, 5 that the toilet seat attachment 1 has. Therefore, the second locking portion 7 may be omitted, but is not required. Other than this, the configuration of the toilet seat attachment 1A is the same as the configuration of the toilet seat attachment 1 according to the embodiment.

[0050] Also, the toilet seat attachment 1A can be attached to, for example, an existing toilet seat cleaning device 50A. The only difference between this toilet seat cleaning device 50A and the toilet seat cleaning device 50 is that the cushion 52d and the cushion 52e provided on the back surface 52c of the toilet seat 52 are the same height. Therefore, even if the toilet seat attachment 1A does not have the support members 4, 5, the cushion 52d will not rise up from the upper end surface 60c. Furthermore, the nozzle cover 51c does not interfere with the upper end surface 60c at the rear portion 60b. This is due to the difference in the size of the toilet 60A in the front-rear direction and the attachment position of the base plate 2 relative to the depth direction of the fixed plate 53.

[0051] Therefore, the toilet seat attachment 1A can be attached to the toilet bowl 60A in a simpler procedure since it does not require the support members 4 and 5. Other than this, the functions and effects of the toilet seat attachment 1A are similar to those of the toilet seat attachment 1 according to the embodiment.

[0052] Further, a toilet seat attachment according to a second modified embodiment of the embodiment will be described with reference to Figs. 11 to 13. Fig. 11 is an exploded perspective view of the toilet seat attachment according to the second modified embodiment. Fig. 12 is a perspective view of a support member constituting the toilet seat attachment according to the second modified embodiment when attached to a toilet seat. Fig. 13 is a right side view of a support member constituting the toilet seat attachment according to the second modified embodiment when attached to a toilet bowl. The components shown in Figs. 1 to 10 are given the same reference numerals in Figs. 11 to 13, and their description will be omitted. As shown in FIG. 11, a toilet seat attachment 1B according to a second modified example of the embodiment has a base plate 2′ instead of the base plate 2 provided in the toilet seat attachment 1A, and has a second mounting member 11 instead of the first mounting member 3. In the base plate 2', the insertion holes 8, 8 and the washer insertion holes 9, 9 are disposed closer to the long side 2b than in the base plate 2. Other than this, the configuration of the base plate 2' is the same as that of the base plate 2.

[0053] The second mounting member 11 has an upper portion D including a flat upper end 11a. 11 And this upper part D 11 The lower part D overlaps the lower part D 12 Upper part D 11 The lower portion D is a rectangular plate having sawtooth portions 11b, 11b formed on both ends of its rear surface. 12The width of the upper part is D 11 Narrower than. Further, the second mounting member 11 has a mounting insertion hole 12 formed therethrough for inserting the existing screw body 70A therethrough. The second mounting members 11, 11 are locked to a fixing plate 55 having holding holes 56, 56.

[0054] The retaining hole 56 is wider in the width direction W and shorter in the depth direction D than the retaining hole 54 of the fixed plate 53. Similarly to the retaining hole 54, the retaining hole 56 is formed with sawtooth stepped surfaces 56a, 56a. Therefore, the sawtooth portions 11b, 11b of the second mounting member 11 mesh with the step surfaces 56a, 56a, so that the upper step portion D including the upper end 11a of the second mounting member 11 11 is engaged with the retaining hole 56.

[0055] Furthermore, the toilet seat attachment 1B includes a lift member 13 as shown in Fig. 12. This lift member 13 is attached to the cushion 52h close to the base end 52b among the cushions 52g, 52h already provided on the underside 52c of the toilet seat 52 of the toilet seat cleaning device 50B. The cushions 52g, 52h have the same shape. The lift member 13 is a box-shaped body having an inner space 13a having the same shape as the cushion 52h. The outer bottom surface 13b of the lift member 13 has a flat elliptical shape.

[0056] As shown in Fig. 13, the toilet 60A to which the toilet seat attachment 1B is attached has an upper end surface 60c' that slopes slightly upward as it approaches the front part 60d of the toilet 60A. Therefore, if the lift member 13 is not provided, the cushion 52h will float up from the upper end surface 60c'. Therefore, when the lift member 13 is attached by placing it over the cushion 52h, the outer bottom surface 13b abuts against the upper end surface 60c'. Therefore, the lift member 13 supports the toilet seat 52 together with the cushions 52g and 52h.

[0057] According to the toilet seat attachment 1B, the lift member 13 supports the toilet seat 52, preventing damage caused by bending of the toilet seat 52. This can extend the product life of the toilet seat 52 and prevent unexpected shaking when a user sits on the toilet seat 52. This can prevent disadvantages such as reduced comfort during use. Other than this, the functions and effects of the toilet seat attachment 1B are the same as those of the toilet seat attachment 1A.

[0058] The toilet seat attachment according to the present invention is not limited to those shown in the embodiment. For example, the first locking portion 6 of the base plate 2 may be a plurality of points arranged in a straight line at intervals. In addition, one of the support members 4, 5 may be omitted, and the remaining other may be disposed toward the center of the short sides 2c, 2d. Furthermore, the lift member 13 may be provided on the toilet seat attachment 1, 1A. [Industrial Applicability]

[0059] INDUSTRIAL APPLICABILITY The present invention can be used as a toilet seat attachment for attaching a toilet seat device to a toilet bowl. [Explanation of symbols]

[0060] 1, 1A, 1B...Toilet seat attachment 2, 2'...Base plate 2a, 2b...Long side 2c, 2d...Short side 2n...Notch 2e...Upper surface 2f...Lower surface 3...First mounting member 3a...Upper end 3b...Lower end 3c, 3d...Side end T3...Engagement protrusion D 31 …Upper part D 32 ...Lower portion 4,5...Support member 4a,5a...Upper end 4b,5b...Lower end 4c,4d,5c,5d...Side end T4,T5...Engagement protrusion 4A...Front end 4B...Rear end 6...First engagement portion 7...Second engagement portion 8...Insertion hole 9...Washer insertion hole 9a...Open end 9b...Closed end 10...Recess 11...Second mounting member 11a...Upper end 11b...Sawtooth portion D 11 …Upper part D 12...Lower portion 12...Mounting insertion hole 13...Lift member 13a...Inner space 13b...Outer bottom surface 50,50A,50B...Bidet toilet seat device 51...Casing 51a...Bottom surface 51b...Convex portion 51c...Nozzle cover 52...Toilet seat 52a...Tip 52b...Base end 52c...Back surface 52d~52h...Cushion 53,55...Fixed plate 53a,53b...Long side 53c,53d...Short side 53n...Notch 53e...Top surface 53f...Bottom surface 54,56...Retaining hole 54a,56a...Step surface 60,60A...Toilet bowl 60a...Fixed hole 60b...Rear portion 60c,60c´...Top end surface 60d...Front portion 70,70A...Threaded body 71...Washer 72...Nut

Claims

1. A toilet seat device comprising a casing, a toilet seat held by the casing so as to be openable and closable, and a cushion already provided on the underside of the toilet seat. The toilet seat device is attached to a fixing plate which fixes the casing to a toilet bowl, and a base plate is disposed between the fixing plate and the toilet bowl. one or more first mounting members for mounting the base plate to the fixed plate; a support member disposed between the base plate and the toilet bowl and supporting the base plate so that the cushion can be brought into contact with an upper end surface of the toilet bowl; The fixing plate has a pair of retaining holes for inserting and holding a pair of fixing members that are respectively inserted into a pair of fixing holes already provided in the rear portion of the toilet bowl, The base plate has a first engaging portion formed on an upper surface of the base plate, a second engaging portion formed on a lower surface of the base plate, and a pair of insertion holes for inserting the pair of fixing members are formed through the base plate, an upper end of the first mounting member is engaged with the retaining hole, and a lower end of the first mounting member is engaged with the first engaging portion; The support member has an upper end engaged with the second engaging portion, The second engaging portion is a lower surface groove portion, A toilet seat attachment, characterized in that the underside groove portion is provided along a depth direction of the base plate, which coincides with the front-to-rear direction of the toilet bowl.

2. The first engaging portion is an upper surface groove portion, The toilet seat attachment according to claim 1, wherein the upper surface groove portion is provided along the depth direction of the base plate, which coincides with the front-rear direction of the toilet bowl.

3. A base plate attached to a fixing plate that fixes a casing constituting a toilet seat device to a toilet bowl and disposed between the fixing plate and the toilet bowl; and one or more second mounting members for mounting the base plate to the fixed plate. The fixing plate has a pair of retaining holes for inserting and holding a pair of fixing members that are respectively inserted into a pair of fixing holes already provided in the rear portion of the toilet bowl, The base plate has a first engaging portion formed on an upper surface of the base plate, and a pair of insertion holes for inserting the pair of fixing members are formed penetrating the base plate, A toilet seat attachment, characterized in that the upper end of the second mounting member is engaged with the retaining hole, and an mounting insertion hole for inserting the fixing member is formed through the second mounting member.

4. A toilet seat device comprising the casing, a toilet seat held by the casing so as to be openable and closable, and a cushion already provided on the underside of the toilet seat, the toilet seat device comprising a lift member attached to the cushion, 4. The toilet seat attachment according to claim 3, wherein the lift member supports the toilet seat by having an outer bottom surface thereof come into contact with an upper end surface of the toilet bowl.

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