Toilet seat cover

Abstract

To provide a toilet seat cover capable of suppressing positional deviation while achieving easiness of being attached.SOLUTION: A toilet seat cover 50 is attached to a seating surface 30A of a toilet seat 30, which is a top surface of the toilet seat. The toilet seat cover 50 includes a cover body 60. The cover body 60 includes a top surface part 61 and an outside surface part 63. The top surface part 61 composes a seating surface 60A. The outside surface part 63 extends downward from an outer end in a width direction of the top surface part 61 and covers an outside surface 34 of the toilet seat 30. The dimension in a vertical direction of the outside surface part 63 is smaller than a dimension in a vertical direction of the outside surface 34 of the toilet seat 30.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present disclosure relates to a toilet seat cover.

Background Art

[0002] Patent Document 1 discloses a conventional toilet seat cover. The toilet seat cover is detachably attached to the toilet seat. The toilet seat cover is placed over the toilet seat from above and entirely covers the inner surface, upper surface, and outer surface of the toilet seat.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the case of Patent Document 1, the toilet seat cover covers substantially the entire outer surface down to the lower end of the outer surface of the toilet seat. For this reason, it is considered that the lateral displacement of the toilet seat cover with respect to the toilet seat is effectively suppressed. However, at the time of attachment, the longer the vertical length of the portion covering the outer surface, the more difficult it is to place it over the toilet seat, and thus the attachment becomes difficult.

[0005] The present disclosure has been made in view of the above-described conventional situation, and an object thereof is to provide a toilet seat cover capable of achieving both suppression of displacement and ease of attachment.

Means for Solving the Problems

[0006] A toilet seat cover according to an embodiment of the present disclosure is a toilet seat cover attached to the upper surface of a toilet seat, and includes a cover body having an upper surface portion constituting a seating surface and an outer surface portion extending downward from an outer end in the width direction of the upper surface portion to cover the outer surface of the toilet seat, wherein a vertical size of the outer surface portion is smaller than a vertical size of the outer surface of the toilet seat. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a side view illustrating a state in which the toilet seat cover according to embodiment 1 is in use. [Diagram 2] 1 is a side view, partially cut away, showing a toilet seat apparatus with a toilet seat cover according to a first embodiment attached, with the toilet seat and toilet lid in a closed state. [Diagram 3] 1 is a side view, partially cut away, showing a toilet seat apparatus with a toilet seat cover according to a first embodiment attached, with the toilet seat and toilet lid open. FIG. [Figure 4] FIG. 1 is an exploded perspective view showing a toilet seat cover and a toilet seat according to a first embodiment. [Diagram 5] FIG. 1 is a plan view showing a state in which a toilet seat cover according to a first embodiment is attached to a toilet seat. [Figure 6] 6 is a cross-sectional view taken along line VI-VI in FIG. 5. [Figure 7] 7 is a cross-sectional view taken along line VII-VII in FIG. 5. [Figure 8] FIG. 7 is an enlarged view (part 1) of a main part of FIG. 6. [Figure 9] FIG. 7 is an enlarged view (part 2) of the main part of FIG. 6. [Figure 10] FIG. 1 is a perspective view showing the toilet seat cover according to a first embodiment, showing the bottom surface. [Figure 11] 1 is a partially enlarged side view, partly cut away, showing a toilet seat apparatus with a toilet seat cover according to a first embodiment attached, with the toilet seat and toilet lid in an open state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] <Embodiment 1> An embodiment of the toilet seat cover of the present disclosure will be described with reference to the drawings. In this embodiment, as shown in Fig. 1 to Fig. 3, a toilet seat cover 50 attached to a toilet seat 30 is illustrated. The toilet seat 30 is a toilet seat provided in a toilet seat device 20 installed above a toilet bowl 10. In the following description, the front-rear direction, left-right direction, and up-down direction respectively refer to the front-rear direction, left-right direction, and up-down direction as seen from a user who is seated using the toilet seat device 20 with the toilet seat cover 50 attached to the toilet seat 30.

[0009] As shown in Figs. 1 to 3, the toilet seat device 20 includes a device body 21, a toilet seat 30, and a toilet lid 40. The device body 21 is disposed at the rear of the toilet bowl 10 and fixed to the toilet bowl 10. The device body 21 includes a toilet seat shaft 22 that rotatably supports the toilet seat 30, and a toilet lid shaft 23 that rotatably supports the toilet lid 40. The front end 21A of the device body 21 protrudes forward. The front end 21A extends between a pair of toilet seat hinges 36 provided on the toilet seat 30, which will be described later. The upper surface of the device body 21 is formed at the rear end 21B so as to be inclined downward toward the front. The upper surface of the front end 21A of the device body 21 forms a step portion 21C that is recessed downward from the upper surface of the rear end 21B side. The step portion 21C accommodates the toilet lid 40 in a lying position. The upper surface of rear end portion 21B is continuous with the upper surface of toilet lid 40 which is placed in step portion 21C in the laid-down position. As shown in FIG.

[0010] The private parts washing device 24 washes the private parts based on a control signal from the control unit 25. As shown in Fig. 2, the private parts washing device 24 is equipped with a washing nozzle 24A from which washing water is discharged. The washing nozzle 24A is freely movable forward and downward from the device body 21 toward the inside of the toilet bowl 10. During washing, the washing nozzle 24A advances into the toilet bowl 10 and discharges washing water for washing the private parts from its tip diagonally forward and upward.

[0011] The control unit 25 controls the private parts cleaning device 24, other functional units in the toilet seat device 20, various sensors, etc. Examples of the other functional units include a toilet bowl cleaning device, a toilet seat opening and closing device that automatically opens and closes the toilet seat 30, a toilet lid opening and closing device that automatically opens and closes the toilet lid 40, a toilet seat heating device that warms the toilet seat 30, etc.

[0012] The toilet seat 30 is provided so as to be freely opened and closed. In the closed state shown in FIG. 2, the toilet seat 30 is disposed in a reclined position along the top surface of the toilet bowl 10. In the open state shown in FIG. 3, the toilet seat 30 is disposed in an upright position, tilted slightly backward toward the top of the toilet bowl 10. The toilet seat 30 rotates around the toilet seat axis 22 between the closed state and the open state. For example, the toilet seat 30 automatically rotates between the closed state and the open state by being driven by a toilet seat opening / closing device incorporated in the device main body 21 based on a signal input from an operation unit (not shown) such as a remote controller or a detection signal from a human body detection sensor.

[0013] As shown in Figures 4 to 6, the toilet seat 30 has a seating portion 31 and a toilet seat hinge portion 36. The seating portion 31 and the toilet seat hinge portion 36 are integrally formed from a hard resin material. When the toilet seat 30 is closed, the seating portion 31 is disposed along the rim 12 (see Figure 2) at the upper end of the toilet bowl 10. In this state, the upper surface of the seating portion 31 is the seating surface 30A of the toilet seat 30.

[0014] The seating portion 31 is formed in an annular shape with an opening at the center. Specifically, as shown in Figs. 4 and 5, the seating portion 31 extends backward from the front portion 31A, which corresponds to the apex, to the left and right side portions 31B, 31C while curving in a parabola, and the rear ends of the left and right side portions 31B, 31C are connected by the rear portion 31D extending in the left-right direction. The shape of the opening at the center of the seating portion 31 is an egg shape tapered toward the front portion 31A. As shown in Figs. 5 and 6, the upper end 31F of the rear end surface 31E at the rear portion 31D is the rear end of the seating surface 30A and corresponds to the rear end of the toilet seat. The rear end surface 31E has a slight inclination of about the so-called draft angle, but is a flat surface that expands in a direction perpendicular to the front-rear direction. The upper end 31F of the rear end surface 31E extends horizontally in the left-right direction. In the following description, the circumferential direction and width direction of the toilet seat 30 are the X direction and Y direction shown in Fig. 5, which are directions along the periphery of the opening at the center of the seating portion 31 and directions intersecting the circumferential direction in a plan view. Regarding the inside and outside of the toilet seat 30, the side of the center of the opening of the toilet seat 30 in the Y direction shown in Fig. 5 is referred to as the inside, and the opposite side is referred to as the outside.

[0015] As shown in Figs. 6 to 9, the seating portion 31 has an upper surface 32 that faces upward when the toilet seat 30 is closed, an inner surface 33 that faces the center, and an outer surface 34 that faces the outside opposite the center. The upper surface 32, the inner surface 33, and the outer surface 34 correspond to the upper surface of the toilet seat and constitute the seating surface 30A. The upper surface 32 is formed to be inclined downward toward the inside in the width direction (the center side of the seating portion). The inclination of the upper surface 32 is greatest on the rear portion 31D side of the seating portion 31, and gradually becomes gentler toward the front portion 31A side. The lower ends of the inner surface 33 and the outer surface 34 are each chamfered in a C-chamfered shape.

[0016] The inner surface 33 is an inward surface formed around the entire circumferential edge of the opening of the seating portion 31. As shown in Figs. 7 to 9, the inner surface 33 is inclined from the upper end to the lower end toward the center of the seating portion 31. As a result, the lower end side of the inner surface 33 is located closer to the center than the upper end side of the inner surface 33. The lower end of the inner surface 33, at the upper end of the C-chamfered portion, forms the minimum inner shape of the annular toilet seat 30. The part that forms the minimum inner shape of the inner surface 33 is the inner peripheral edge 33A. The vertical height of the inner surface 33 is approximately constant around the entire periphery of the opening.

[0017] As shown in Figs. 7 to 9, the inner side surface 33 has an inner rounded surface 33B. The inner rounded surface 33B is formed at the upper end of the inner side surface 33. The lower end of the inner rounded surface 33B is located above the center position of the height of the entire inner side surface 33 (the length of the inner side surface 33 in the vertical direction). The inner rounded surface 33B is a curved surface formed with a larger curvature than other parts of the inner side surface 33 and the upper side surface 32 in the width direction cross section. The inner side surface 33 is continuously connected to the upper side surface 32 by the inner rounded surface 33B. The inner rounded surface 33B is formed with a constant curvature in the front region of the seating portion 31. The inner rounded surface 33B is formed with a curvature smaller in the rear region of the seating portion 31 than the curvature in the front region of the seating portion 31.

[0018] The outer surface 34 is an outward surface formed on the front portion 31A and the left and right side portions 31B, 31C of the seating portion 31. As shown in Figs. 7 and 8, the outer surface 34 is inclined outward from the upper end to the lower end. As a result, the lower end side of the outer surface 34 is located more outward than the upper end side of the outer surface 34. The lower end of the outer surface 34 constitutes the maximum outer shape of the toilet seat 30 at the upper end of the C-chamfered portion. The portion that constitutes the maximum outer shape of the outer surface 34 is the outer peripheral edge 34A. The height of the outer surface 34 in the vertical direction is smallest at the front end. The outer surface 34 has a shape in which the lower end position is at the same position and the upper end position is inclined upward, and the height in the vertical direction increases from the front end to the rear end (see Fig. 2). The rear end of the outer surface 34 extends obliquely upward toward the rear with both the lower end position and the upper end position inclined, and is connected to the outer surface of the toilet seat hinge portion 36 (see Fig. 4).

[0019] As shown in FIGS. 7 and 8, the outer surface 34 has an outer R surface 34B. The outer R surface 34B is formed at the upper end of the outer surface 34. The lower end of the outer R surface 34B is located above the central position of the height of the entire outer surface 34 (the vertical length of the outer surface 34). The outer R surface 34B is a curved surface formed by curving with a larger curvature than other portions of the outer surface 34 and the upper surface 32 in the cross section in the width direction. The outer surface 34 is continuously connected to the upper surface 32 by the outer R surface 34B. The curvature of the outer R surface 34B in the cross section in the width direction is constant as a whole.

[0020] As shown in FIGS. 2 and 3, the toilet seat hinge portion 36 rotatably supports the toilet seat 30 with respect to the apparatus main body 21. The toilet seat hinge portion 36 is assembled to the toilet seat shaft portion 22. A pair of toilet seat hinge portions 36 are provided at both ends in the left-right direction of the seating portion 31. The toilet seat hinge portion 36 protrudes rearward from the rear end surface 31E of the seating portion 31 (see FIG. 5).

[0021] As shown in FIG. 1, the toilet seat 30 is provided with a seating sensor 38. The seating sensor 38 is a sensor for determining the presence or absence of a person's seating. The toilet seat device 20 appropriately exhibits the functions of the above-described various functional portions based on the determination result of the presence or absence of seating. In the case of the present embodiment, the seating sensor 38 employs a capacitance-type sensor.

[0022] As shown in Figs. 2 and 3, the toilet lid 40 is provided above the toilet seat 30 so as to be freely opened and closed. When closed, the toilet lid 40 is disposed in a lying position along the upper surface of the toilet bowl 10. When in a lying position, the toilet lid 40 fits into the step portion 21C of the device body 21 at the rear end. As a result, the upper surface of the toilet lid 40 forms a surface that is approximately flush with the upper surface of the device body 21. When open, the toilet lid 40 is disposed in an upright position that is slightly tilted backward toward the top of the toilet bowl 10. The toilet lid 40 rotates between a closed position and an open position around the toilet lid shaft portion 23. For example, the toilet lid 40 automatically rotates between a closed position and an open position by a toilet lid opening / closing device (not shown) driven based on a signal input from an operating unit (not shown) such as a remote controller or a detection signal from a human body detection sensor.

[0023] As shown in Figures 2 and 3, the toilet lid 40 has a toilet lid main body 41, a toilet lid hinge portion 45, a foot portion 46, and a contact portion 47. The toilet lid main body 41 and the toilet lid hinge portion 45 are integrally formed from a hard resin material. When the toilet lid 40 is closed, the toilet lid main body 41 covers the upper surface 32 and the entire opening area of ​​the seat portion 31 of the toilet seat 30, and covers the outer surface 34. The toilet lid main body 41 has a flat upper plate portion 42 that is slightly larger than the upper surface 32, and a hanging piece portion 43 that extends downward from the edge of the upper plate portion 42.

[0024] The toilet lid hinge portion 45 supports the toilet lid 40 so that it can rotate freely relative to the device main body 21. The toilet lid hinge portion 45 is attached to the toilet lid shaft portion 23. A pair of toilet lid hinge portions 45 are provided at both ends in the left-right direction of the toilet lid main body portion 41. The toilet lid hinge portion 45 protrudes rearward from the rear end portion of the toilet lid main body portion 41. The toilet lid hinge portion 45 covers the upper surface and outer surface of the toilet seat hinge portion 36.

[0025] As shown in FIG. 2, the foot portion 46 supports the lid body portion 41 when the lid 40 is closed. The tip of the foot portion 46 is formed of a resin material having elasticity such as synthetic rubber. The contact portion 47 is a portion that contacts the seating surface 60A of the toilet seat cover 50 attached to the toilet seat 30 when both the lid 40 and the toilet seat 30 are open.

[0026] The toilet seat cover 50 is detachably attached to the seating surface 30A (the upper surface of the toilet seat) of the toilet seat 30. As shown in FIGS. 4 and 5, in the present embodiment, the toilet seat cover 50 includes a cover body 60 and an adhesive portion 70. In the following description, the circumferential direction and the width direction of the toilet seat cover 50 are the same as those of the toilet seat 30, that is, the direction along the opening periphery of the center portion of the cover body 60 and the direction intersecting the circumferential direction in plan view.

[0027] The cover body 60 is formed in an annular shape with an opening formed at the center portion, similar to the seating portion 31 of the toilet seat 30. As shown in FIGS. 4 and 10, one surface of the cover body 60 is the seating surface 60A, and the surface on the opposite side of the seating surface 60A is the opposing surface 60B. The opposing surface 60B is a surface that opposes the seating surface 30A of the toilet seat 30, which is the upper surface of the toilet seat, when the toilet seat cover 50 is attached to the toilet seat 30.

[0028] As shown in Fig. 4 and Fig. 5, the cover body 60 has a cover front part 60C, a cover left part 60D, a cover right part 60E, and a cover rear part 60F. The cover front part 60C, the cover left part 60D, the cover right part 60E, and the cover rear part 60F cover the front part 31A, the left and right side parts 31B, 31C, and the rear part 31D of the seat part 31 of the toilet seat 30, respectively. As shown in Fig. 10, the surface shape of the facing surface 60B is substantially the same as the surface shape of the seating surface 30A of the toilet seat 30. The term "substantially the same shape" here means a surface shape that has a male-female relationship with the surface shape of the seating surface 30A of the toilet seat 30. In other words, the surface shape of the facing surface 60B is substantially the same as the surface shape of the part of the mold for molding the toilet seat 30 that molds the seating surface 30A. As a result, the cover body 60 is attached to the toilet seat 30 with the opposing surface 60B fitting snugly against the seating surface 30A of the toilet seat 30.

[0029] The cover body 60 is made of a material softer than the material used for the toilet seat 30. This gives the cover body 60 a certain cushioning property. Specifically, in the case of this embodiment, the cover body 60 is made by foaming a soft resin such as polyurethane. In detail, the cover body 60 is formed by spraying an unfoamed resin material onto the mold surface of a molding die in advance to form a skin layer, and then injecting the resin material into the cavity of the molding die to foam it. As a result, the cover body 60 is formed as a resin molded product in which a smooth skin layer and a foam layer are integrated.

[0030] The cover body 60 is formed with different thicknesses. The thickness of the cover body 60 gradually increases from the cover front portion 60C toward the cover rear portion 60F. That is, the cover body 60 is relatively thin at the cover front portion 60C and relatively thick at the cover rear portion 60F. The thinnest portion (thin portion) of the cover body 60 is located at the cover front portion 60C (see FIG. 8). The thickest portion (thick portion T) of the cover body 60 is located at the cover rear portion 60F (see FIG. 9). This thick portion T corresponds to the left and right ischial bones and coccyx of a user seated in the assumed seating position.

[0031] The thickness of the cover body 60 is the thickness in the direction perpendicular to the surface that contacts the seating portion 31 when attached to the toilet seat 30. The specific thickness of the thin portion of the cover body 60 is about 2 mm to 7 mm. If the thickness of the thin portion is within this range, the capacitance type seating sensor 38 can function normally in the toilet seat 30 with the toilet seat cover 50 attached. If the thickness of the thin portion is within this range, the heat generated by the heating function of the toilet seat 30 can be quickly transferred to the seating surface 60A in the toilet seat 30 with the toilet seat cover 50 attached. In contrast, the specific thickness of the thick portion of the cover body 60 is about 10 mm to 30 mm, which is about two to five times the thickness of the thin portion. If the thickness of the thick portion is within this range, sufficient cushioning can be ensured.

[0032] 5, when the toilet seat cover 50 is attached to the toilet seat 30, the widthwise inner end (opening side end) of the cover body 60 is located outside the inner peripheral edge 33A of the inner side surface 33, which is the widthwise inner end of the sitting portion 31 of the toilet seat 30, around the entire inner peripheral edge of the opening. The widthwise inner end of the cover body 60 corresponds to an inner side surface portion 62, which will be described later, in the cover front portion 60C, the cover left portion 60D, and the cover right portion 60E, and corresponds to the front end of an upper surface portion 61, which will be described later, in the cover rear portion 60F.

[0033] 5, the outer end (edge ​​on the outer periphery side) of the cover body 60 in the width direction is located inside the outer periphery of the seating portion 31 in the cover left side 60D, the cover right side 60E, and the cover rear side 60F. The outer end (edge ​​on the outer periphery side) of the cover body 60 in the width direction is located slightly outside the outer periphery of the seating portion 31 in the cover front part 60C. The outer end in the width direction of the cover body 60 corresponds to an outer surface portion 63 described later in the cover front part 60C, the cover left side 60D, and the cover right side 60E, and corresponds to the rear end of an upper surface portion 61 described later in the cover rear part 60F.

[0034] As shown in Figs. 7 to 10, the cover body 60 has an upper surface portion 61, an inner side surface portion 62, and an outer side surface portion 63. The surfaces of the upper surface portion 61, the inner side surface portion 62, and the outer side surface portion 63 form the seating surface 60A, and the reverse surfaces form the opposing surfaces 60B. The upper surface portion 61 is a portion that covers the upper surface 32 of the toilet seat 30. The upper surface portion 61 is formed over the entire circumferential direction of the annular cover body 60. The upper surface portion 61 is formed to be inclined downward toward the inside (center side) in the width direction. The inclination of the upper surface portion 61 is greatest on the cover rear portion 60F side, and gradually becomes gentler toward the cover front portion 60C side.

[0035] As shown in Figs. 7 and 8, the inner side portion 62 and the outer side portion 63 are formed in a rib-like shape protruding from the end portions in the width direction of the upper surface portion 61. The inner side portion 62 and the outer side portion 63 function to maintain the shape of the cover body 60 by suppressing bending or folding when the cover body 60 is separate before being attached to the toilet seat during transportation, etc. The inner side portion 62 and the outer side portion 63 function to suppress misalignment with respect to the toilet seat 30 when the toilet seat cover 50 is attached to the toilet seat 30. The upper surface portion 61, the inner side portion 62, and the outer side portion 63 form a U-shaped cross section in the width direction of the cover body 60. Comparing the inner side portion 62 and the outer side portion 63, the thickness of the inner side portion 62 is generally thinner than the thickness of the outer side portion 63. The lower end (protruding end) of the inner side portion 62 is located lower than the lower end of the outer side portion 63.

[0036] The inner side surface portion 62 is a portion that covers the inner side surface 33 of the toilet seat 30. The inner side surface portion 62 is formed extending downward from the inner end of the upper surface portion 61 in the width direction. As shown in Figs. 7 and 8, the inner peripheral edge (edge ​​on the center side) 62A of the inner side surface portion 62 is located outside the inner peripheral edge 33A of the toilet seat 30. The inner side surface portion 62 partially covers the upper end side of the inner side surface 33 of the toilet seat 30. That is, the vertical size of the inner side surface portion 62 is smaller than the vertical size of the inner side surface 33 of the toilet seat 30. As described above, the inner side surface 33 of the toilet seat 30 is formed inclined toward the center side of the cover body 60 from the upper end to the lower end. Therefore, by configuring the inner side surface portion 62 to partially cover only the upper end of the inner side surface 33, it is possible to easily realize a configuration in which the inner peripheral edge 62A of the inner side surface portion 62 is located outside the inner peripheral edge 33A of the toilet seat 30 while ensuring a predetermined thickness of the inner side surface portion 62. 7 and 8, the inner side surface portion 62 is configured so that its thickness decreases toward the bottom. Therefore, by configuring the inner side surface portion 62 to partially cover only the upper end portion of the inner side surface 33 and to have a thickness that decreases toward the bottom end side, it is possible to more easily realize a configuration in which the inner peripheral edge 62A of the inner side surface portion 62 is located outside the inner peripheral edge 33A of the toilet seat 30.

[0037] As shown in Figs. 7 and 8, the length L62 of the inner side portion 62 in the width direction cross section of the opposing surface 60B (surface opposing the upper surface of the toilet seat) is longest on the cover front portion 60C side. The lower end of the inner side portion 62 is located at the lowest position on the cover front portion 60C side. The lower end of the inner side portion 62, which is the end protruding from the upper surface portion 61, is located at the lowest position at the front end of the cover main body 60. The length L62 of the inner side portion 62 is approximately the same from the front end to the middle portion in the front-rear direction. The length L62 of the inner side portion 62 gradually decreases from the middle portion in the front-rear direction toward the rear. Accordingly, the lower end of the inner side portion 62 gradually rises from the middle portion in the front-rear direction toward the rear (see Fig. 6).

[0038] Specifically, as shown in FIGS. 4 and 8, the inner surface portion 62 extends downward to a position lower than the lower end of the inner R surface 33B in the region on the cover front portion 60C side and in the region in front of the middle portion in the front-rear direction of the left and right cover side portions 60D and 60E. In the region behind the middle portion in the front-rear direction of the left and right cover side portions 60D and 60E, the inner surface portion 62 is provided such that the difference in distance between its lower end position and the lower end position of the inner R surface 33B gradually decreases as it extends rearward. As shown in FIG. 7, the lower end of the inner surface portion 62 is located above the lower end of the inner R surface 33B in the region on the cover rear portion 60F side.

[0039] The inner surface portion 62 is provided on the cover front portion 60C, the cover left side portion 60D, and the cover right side portion 60E, which are parts of the cover body 60 other than the cover rear portion 60F. In other words, the inner surface portion 62 is not formed on the cover rear portion 60F. Specifically, as shown in FIG. 10, the inner surface portion 62 is formed continuously from the cover front portion 60C to the left and right cover left side portion 60D and cover right side portion 60E, and is provided in a C-shaped configuration in plan view that is not formed at the center portion in the left-right direction of the cover rear portion 60F. For this reason, in the portion where the inner surface portion 62 and the outer surface portion 63 are not provided, the cover rear portion 60F, as shown in FIG. 9, covers only the upper side surface 32 with the upper surface portion 61, and does not cover the inner side surface 33 and the outer side surface 34 of the seating portion 31. That is, in the portion where the inner surface portion 62 is not formed, the inner end 60G in the width direction of the cover rear portion 60F is the inner end of the upper surface portion 61, as shown in FIG. 9. The inner end 60G in the width direction of the cover rear portion 60F is located on the outer side in the width direction from the inner peripheral edge 33A of the inner side surface 33, which is the inner end of the corresponding toilet seat 30. The inner end 60G in the width direction of the cover rear portion 60F may be in the same position in the width direction as the inner peripheral edge 33A of the inner side surface 33, which is the inner end of the toilet seat 30.

[0040] As shown in FIG. 9, the cover rear part 60F is thinned toward the rear. The upper surface of the cover rear part 60F is formed to be inclined obliquely upward from the inside to the outside in the width direction. This inclination is gentler than the inclination of the upper surface of the rear part 31D of the seating part 31 covered by the cover rear part 60F. The cover rear part 60F has a tapered cross section that becomes thinner toward the rear end. As a result, the toilet seat cover 50 does not interfere with the vertical surface of the rear end of the step part 21C when attached to the toilet seat 30 and the toilet seat 30 is in an upright position as shown in FIG. 11. That is, the toilet seat cover 50 has a configuration in which the rear end of the toilet seat cover 50 is unlikely to interfere with the device main body 21 by making the cover rear part 60F thin toward the rear.

[0041] As shown in FIG. 9, the cover rear part 60F has a part formed to be thickest compared to other parts of the cover body 60 at a position on the front end side, which is closer to the inside in the width direction (closer to the opening). This part is the above-mentioned thick part T, which corresponds to the tailbone of a user sitting in the assumed seating position. In this way, the toilet seat cover 50 forms the part of the cover body 60 corresponding to the tailbone to be thickest, thereby enhancing cushioning compared to other parts and improving comfort when sitting. The part of the cover rear part 60F forward of the thick part T is formed to be thin toward the front, as shown in FIG. 9.

[0042] As shown in Fig. 5, the rear end edge 60H of the cover rear portion 60F extends along the extension direction of the rear end surface 31E of the seating portion 31. This allows the toilet seat cover 50 to achieve a good design that gives a sense of unity with the toilet seat 30. The rear end edge 60H of the cover rear portion 60F extends linearly in the left-right direction in a plan view. The position of the rear end edge 60H of the cover rear portion 60F in the front-rear direction is slightly forward of the rear end of the seating portion 31.

[0043] The height of the upper end 60J of the rear end edge 60H of the cover rear part 60F is equal to the height of the upper end 31F of the rear end surface 31E of the seating part 31. In detail, the upper end 60J of the rear end edge 60H of the cover rear part 60F is equal to the height of the center in the left-right direction of the upper end 31F of the rear end surface 31E of the seating part 31 at the center in the left-right direction. This realizes a good design that gives a sense of unity with the toilet seat 30 when the toilet seat cover 50 is attached to the toilet seat 30. The upper end 60J of the rear end edge 60H of the cover rear part 60F is slightly higher from the center in the left-right direction toward the side, while the upper end 31F of the rear end surface 31E of the seating part 31 extends horizontally in the left-right direction. In other words, the height of the rear end edge 60H of the cover rear part 60F is slightly lower in the center than in the left and right sides. This realizes a configuration in which the rear end of the toilet seat cover 50 is less likely to interfere with the device main body 21.

[0044] The outer surface portion 63 is a portion that covers the outer surface 34 of the toilet seat 30. The outer surface portion 63 is formed extending downward from the outer end of the width direction of the upper surface portion 61. As shown in FIG. 10, the outer surface portion 63 is formed at the outer end of the portion of the outer end of the upper surface portion 61 that corresponds to the cover front portion 60C, the cover left side portion 60D, and the cover right side portion 60E. The outer surface portion 63 is not formed at the rear end, which is the outer end of the portion that corresponds to the cover rear portion 60F. The outer surface portion 63 partially covers the upper end side of the outer surface 34 of the toilet seat 30. In other words, the vertical size of the outer surface portion 63 is smaller than the vertical size of the outer surface 34 of the toilet seat 30.

[0045] As shown in FIG. 7, the outer peripheral edge 63A of the outer surface portion 63 is located inside the outer peripheral edge 34A of the outer surface 34, which is the outer peripheral edge of the toilet seat 30. This configuration is applied to the outer surface portion 63 in the cover left side portion 60D and the cover right side portion 60E, among the outer surface portions 63 formed continuously from the cover front portion 60C to the cover left side portion 60D and the cover right side portion 60E. As described above, the outer surface 34 of the toilet seat 30 is formed to be inclined outward from the upper end to the lower end. Therefore, by configuring the outer surface portion 63 to partially cover only the upper end portion of the outer surface 34, such a configuration in which the outer peripheral edge 63A of the outer surface portion 63 is located inside the outer peripheral edge 34A of the toilet seat 30 can be easily realized while ensuring a predetermined thickness of the outer surface portion 63.

[0046] In this embodiment, the outer peripheral edge 63A of the outer surface portion 63 is located slightly outboard of the outer peripheral edge 34A of the outer surface 34, which is the outer peripheral edge of the toilet seat 30, in the cover front portion 60C. This is because the thickness and protruding length of the outer surface portion 63 are sufficiently large in the cover front portion 60C. By making the thickness and protruding length of the outer surface portion 63 sufficiently large in the cover front portion 60C, it is possible to suppress misalignment of the cover main body 60 with the toilet seat 30 in the cover front portion 60C. The outer peripheral edge 63A of the outer surface portion 63 may be located inboard of the outer peripheral edge 34A of the toilet seat 30 in this cover front portion 60C as well.

[0047] In this embodiment, the lower end of the outer surface portion 63 is located above the center position of the height of the entire outer surface 34 of the toilet seat 30. Specifically, the outer surface portion 63 is configured to cover only the outer R surface 34B at the upper end of the outer surface 34 of the toilet seat 30, so that the lower end of the outer surface portion 63 is located above the center position of the height of the outer surface 34. With this configuration, the toilet seat cover 50 can be made smaller in size and easier to attach to the toilet seat 30 compared to a case in which the lower end of the outer surface portion is located below the center position of the entire height of the outer surface of the toilet seat. The lower end of the outer surface portion 63 is located above the lower end position of the outer R surface 34B. This makes it easy to realize a configuration in which the outer peripheral edge 63A of the outer surface portion 63 is located inside the outer peripheral edge 34A of the toilet seat 30. When the outer surface portion 63 is configured to cover only the outer R surface 34B of the outer surface 34 of the toilet seat 30, the lower end position of the outer surface portion 63 may be located at the same position as the lower end position of the outer R surface 34B.

[0048] As shown in FIG. 10, the adhesive portion 70 is provided on the facing surface 60B of the cover body 60. In detail, the adhesive portion 70 is provided on a portion of the facing surface 60B that corresponds to the upper surface portion 61 of the cover body 60. The adhesive portion 70 is formed by attaching a sheet-shaped adhesive material having an acrylic resin-based adhesive layer formed on both sides of a base material to the facing surface 60B. The adhesive portion 70 is provided along the circumferential direction of the cover body 60. The adhesive portion 70 is provided over approximately the entire circumference of the cover body 60 in the circumferential direction. In other words, the adhesive portion 70 is provided so as to surround the opening in the center of the cover body 60. The adhesive portion 70 has an adhesive surface that can be repeatedly attached and peeled off from the toilet seat 30. The adhesive portion 70 has an adhesive force that can maintain the attached state when the cover body 60 is attached to the toilet seat 30 and the toilet seat 30 is open.

[0049] As shown in Figs. 4, 5, and 10, the adhesive portion 70 is divided into a plurality of parts along the circumferential direction of the cover body 60. Specifically, the adhesive portion 70 is provided by attaching four sheet-shaped adhesive materials, a front sheet member 71, a left sheet member 72, a right sheet member 73, and a rear sheet member 74, to the opposing surface 60B. The front sheet member 71, the left sheet member 72, the right sheet member 73, and the rear sheet member 74 are members divided into four parts corresponding to the front part 31A, the left part 31B, the right part 31C, and the rear part 31D of the seating part 31 of the toilet seat 30, respectively. By dividing them in this way, the area of ​​the attachment surface of each sheet member becomes relatively small.

[0050] As described above, the surface shape of the facing surface 60B is a three-dimensional curved three-dimensional shape following the seating surface 30A of the toilet seat 30. By separately attaching the sheet members divided into a plurality of pieces to the facing surface 60B having such a complex surface shape, the change in the surface shape of the facing surface 60B corresponding to each sheet member becomes relatively small, and the ease of attachment can be improved. As described above, the surface shape of the facing surface 60B is a shape that is a female shape with respect to the seating surface 30A of the toilet seat 30, and is a three-dimensional curved three-dimensional shape. If the sheet member were an integrated one that was not divided, it would be difficult to attach it accurately to such a three-dimensional surface. In this embodiment, the sheet-like adhesive material is divided into a plurality of pieces along the circumferential direction of the cover body 60, thereby facilitating the attachment work.

[0051] The adhesive portion 70 covers the gate portion 60K of the cover body 60. As described above, the cover body 60 according to this embodiment is formed by foam molding soft resin such as polyurethane. The cover body 60 is molded using a mold. The mold has an injection hole for injecting a resin material into the cavity during molding. The gate portion 60K is a portion corresponding to the injection hole. As shown in FIG. 10, the gate portion 60K is formed on the facing surface 60B of the cover front portion 60C of the cover body 60. That is, the gate portion 60K is covered by a front sheet member 71. The seating surface 60A and the facing surface 60B of the cover body 60 are formed by smooth surfaces following the mold surface of the mold. In contrast, the surface of the gate portion 60K is a portion corresponding to the injection hole in the mold, and has a rough appearance different from other portions. Therefore, the design can be improved by covering it with a sheet member. The opposing surface 60B of the cover body 60 also has a portion (not shown) corresponding to a gas vent hole for releasing air from within the cavity in the molding die, and is covered by the sheet material constituting the adhesive portion 70, similar to the gate portion 60K.

[0052] The toilet seat cover 50 is provided with a mark. The mark indicates the attachment positions of the sheet members 71, 72, 73, and 74 constituting the adhesive portion 70. The mark is provided on the opposing surface 60B. In the case of this embodiment, the mark is a rib R protruding from the surface of the opposing surface 60B as shown in FIG. 10. The rib R is formed at a plurality of locations corresponding to the positions of the inner edge and the circumferential edge of each sheet member 71, 72, 73, and 74 after attachment. The mark is not limited to such a rib, and may be, for example, a form in which the opposing surface is recessed into a groove or hole shape by engraving or the like. The mark may be, for example, a form in which the opposing surface is recessed into a step shape so that the entire sheet member constituting the adhesive portion is fitted in. The mark may be, for example, a mark that indicates the attachment position of the sheet member without unevenness by printing or the like.

[0053] The toilet seat cover 50 has a non-adhesive portion 80. As shown in FIG. 10, the non-adhesive portion 80 is provided on the opposing surface 60B other than the adhesive portion 70. The non-adhesive portion 80 has an outer peripheral non-adhesive portion 81 and an inner peripheral non-adhesive portion 82. That is, in this embodiment, the non-adhesive portion 80 is provided on both the outer peripheral position and the inner peripheral position on the opposing surface 60B. The non-adhesive portion may be provided at least in one of the outer peripheral position and the inner peripheral position on the opposing surface of the toilet seat cover. The outer peripheral non-adhesive portion 81 is a portion on the outer peripheral side of the portion on the opposing surface 60B to which the sheet members 71, 72, 73, and 74 constituting the adhesive portion 70 are attached. The outer peripheral non-adhesive portion 81 is provided around the entire circumference of the outer peripheral edge of the opposing surface 60B.

[0054] As shown in FIG. 10, the outer peripheral non-adhesive portion 81 has a widthwise size at a position near the left and right ends at the rear end of the cover main body 60 that is larger than the widthwise size at other positions of the outer peripheral non-adhesive portion 81. Specifically, as shown in FIG. 10, the outer peripheral non-adhesive portion 81 has an equal width portion 81A and a widened width portion 81B. The equal width portion 81A is provided in a portion of the adhesive portion 70 that corresponds to the outer peripheral side of the front sheet member 71, the left sheet member 72, and the right sheet member 73. The equal width portion 81A is formed with approximately the same width along the outer peripheral edge of the cover main body 60. The widened width portion 81B is provided in a portion of the adhesive portion 70 that corresponds to the outer peripheral side of the rear sheet member 74. The widened width portion 81B is continuous with the rear end of the equal width portion 81A, and has a shape in which the widthwise size gradually increases toward the rear.

[0055] The inner periphery non-adhesive portion 82 is a portion on the inner periphery side of the portion of the opposing surface 60B to which the sheet members 71, 72, 73, and 74 constituting the adhesive portion 70 are attached. The inner periphery non-adhesive portion 82 is provided around the entire inner periphery of the opposing surface 60B. The inner periphery non-adhesive portion 82 is provided with an area smaller than that of the outer periphery non-adhesive portion 81.

[0056] As shown in Figs. 5 and 10, the toilet seat cover 50 has a display section D. The display section D is provided in the non-adhesive section 80. Specifically, the display section D is provided in the widened section 81B of the outer peripheral non-adhesive section 81. In this embodiment, the display section D displays information regarding the quality of the toilet seat cover 50, such as letters and symbols, based on the Household Products Quality Labeling Act. The information such as letters and symbols in the display section D is formed in relief. The display section D is formed at the same time as the cover body 60 is formed. The display section may be formed, for example, in an intaglio shape or by printing.

[0057] The action and effect of the toilet seat cover 50 configured as above will be described. The toilet seat cover 50 is attached to the seating surface 30A of the toilet seat 30, which is the upper surface of the toilet seat. The toilet seat cover 50 comprises a cover body 60. The cover body 60 has an upper surface portion 61 and an outer surface portion 63. The upper surface portion 61 constitutes the seating surface 60A. The outer surface portion 63 extends downward from the outer end of the width direction of the upper surface portion 61 to cover the outer surface 34 of the toilet seat 30. The vertical size of the outer surface portion 63 is smaller than the vertical size of the outer surface 34 of the toilet seat 30.

[0058] In this way, the toilet seat cover 50 has an outer surface portion 63 that covers the outer surface 34 of the toilet seat 30, thereby preventing the toilet seat cover 50 from shifting sideways relative to the toilet seat 30. The vertical size of the outer surface portion 63 of the toilet seat cover 50 is smaller than the vertical size of the outer surface 34 of the toilet seat 30. In other words, the outer surface portion 63 partially covers the upper end side of the outer surface 34 of the toilet seat 30. Therefore, compared to covering the entire outer surface of the toilet seat, the vertical length of the portion covering the outer surface of the toilet seat is shorter, making it easier to cover. Therefore, the toilet seat cover 50 can achieve both prevention of shifting and ease of installation.

[0059] The toilet seat cover 50 is removably attached to the toilet seat 30 by the adhesive portion 70. For this reason, the configuration in which the vertical size of the outer surface portion 63 is smaller than the vertical size of the outer surface 34 of the toilet seat 30 is extremely effective in terms of ease of attachment. In other words, when removably attached to the toilet seat 30 by the adhesive portion 70, if the outer surface portion is long, it is likely to adhere to unintended places. However, by making the vertical size of the outer surface portion 63 smaller than the vertical size of the outer surface 34 of the toilet seat 30, it is possible to prevent the outer surface portion 63 from adhering to unintended places, improving ease of application.

[0060] The above configuration is extremely effective when attached to a toilet seat having an outer surface that slopes outward from the upper end to the lower end, such as the toilet seat 30 of this embodiment. That is, in a toilet seat cover, when the outer surface portion covers only the upper end side of the outer surface of the toilet seat, the amount of outward protrusion is suppressed compared to when the outer surface portion covers up to the lower end of the outer surface of the toilet seat (see FIG. 7). This makes it possible to suppress interference with the toilet lid in a fallen position.

[0061] The lower end of the outer surface portion 63 is located above the center position of the height of the outer surface 34 of the toilet seat 30. Therefore, the toilet seat cover 50 can be attached to the toilet seat 30 even more easily.

[0062] When attached to the toilet seat 30, the outer peripheral edge 63A of the outer surface portion 63 of the portion corresponding to the left and right cover side portions 60D, 60E is located inside the outer peripheral edge 34A of the outer surface 34, which is the outer peripheral edge of the toilet seat. In other words, the outer surface portion 63 is disposed within the projected area of ​​the seating surface 30A of the toilet seat 30 in a plan view on the left and right cover side portions 60D, 60E. Therefore, the toilet seat cover 50 and the toilet lid 40 are unlikely to interfere with each other, and the toilet lid 40 can be sufficiently closed even when the toilet seat cover 50 is attached to the toilet seat 30.

[0063] At the upper end of the outer side surface 34 of the toilet seat 30, an outer R surface 34B is formed as a R surface continuing to the upper surface, which is continuous with the upper side surface 32. The lower end of the outer side surface portion 63 is located higher than the lower end of the outer R surface 34B. Therefore, the toilet seat cover 50 can easily realize a configuration in which the outer side surface portion 63 protrudes outwardly from the outer peripheral edge of the toilet seat by a limited amount.

[0064] The cover body 60 has an L-shaped cross section in the width direction due to the top surface portion 61 and the outer side surface portion 63. This not only suppresses misalignment, but also suppresses deformation such as bending and folding when the cover is alone before being attached to the toilet seat. The cover body 60 further has an inner side surface portion 62. The top surface portion 61, the inner side surface portion 62, and the outer side surface portion 63 give the cover body 60 a U-shaped cross section in the width direction, which further suppresses deformation.

[0065] <Other embodiments> The present disclosure is not limited to the embodiments described above and illustrated in the drawings, and for example, the following embodiments are also included within the technical scope of the present disclosure. (1) The configuration of the cover body is not limited to that of the above embodiment. The shape, material, range of the cover body to cover the upper surface of the toilet seat, presence or absence of cushioning, etc. can be appropriately changed. (2) The lower end of the outer surface portion may be located below the center position of the height of the outer surface of the toilet seat. (3) When the outer peripheral edge of the outer surface portion is located inside the outer peripheral edge of the toilet seat, it may include the front, rear, etc. of the outer surface portion. In other words, the outer peripheral edge of the outer surface portion may be configured such that at least a portion of the left side, right side, front, and rear portions are located inside the outer peripheral edge of the toilet seat. (4) When the cover body has an inner side surface portion, its configuration is not limited to that of the above embodiment. The inner side surface portion may be, for example, as thick as the outer side surface portion, or may be thicker than the outer side surface portion. From the viewpoint of suppressing misalignment with the toilet seat, it is preferable that the inner side surface portion is thick and long. From the viewpoint of suppressing interference with the toilet lid, etc., it is preferable that the outer side surface portion is thin and short. (5) The toilet seat cover may be attached to a so-called horseshoe-shaped toilet seat. In this case, the planar shape of the toilet seat cover may be a horseshoe shape that matches the planar shape of the toilet seat. [Explanation of symbols]

[0066] 30...toilet seat, 30A...toilet seat seating surface (upper surface of the toilet seat), 34...outer surface of the toilet seat, 34A...outer peripheral edge of the outer surface of the toilet seat, 34B...outer R surface (R surface at the upper end of the outer surface) 50...toilet seat cover, 60...cover body, 60A...seat surface, 61...upper surface portion, 63...outer surface portion, 63A...outer peripheral edge of the outer surface portion

Claims

1. A circular toilet seat cover that is removably attached to the top surface of a toilet seat, a cover body having an upper surface portion constituting a seating surface, an outer surface portion extending downward from an outer end of the upper surface portion in a width direction to cover an outer surface of the toilet seat, and an inner surface portion extending downward from an inner end of the upper surface portion in a width direction to cover an inner surface of the toilet seat; an adhesive portion provided on a surface of the cover body opposite to the seating surface and removably attached to the toilet seat; Equipped with The vertical size of the outer surface portion is smaller than the vertical size of the outer surface of the toilet seat, A toilet seat cover in which the vertical size of the inner surface portion is smaller than the vertical size of the inner surface of the toilet seat.

2. The toilet seat cover according to claim 1, wherein a lower end of the outer surface portion is located above a center position of the height of the outer surface of the toilet seat.

3. 3. The toilet seat cover according to claim 1, wherein when attached to the toilet seat, the outer peripheral edges of at least the left and right sides of the outer surface portion are positioned inside the outer peripheral edge of the toilet seat.

4. An R-surface is formed at the upper end of the outer surface of the toilet seat, the R-surface being continuous with the upper surface of the toilet seat; The toilet seat cover according to any one of claims 1 to 3, wherein a lower end of the outer side surface portion is located higher than a lower end of the R surface.

5. The toilet seat cover according to any one of claims 1 to 4, wherein the cover body has a foam layer.

6. A toilet seat cover as described in any one of claims 1 to 5, wherein the cover body has cover sides and cover rear parts that are attached to the sides and rear parts of the toilet seat when attached to the toilet seat, and the rear end of the cover rear part is located forward of the rear end of the toilet seat.

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