Toilet equipment

The toilet device addresses the issue of narrowed accommodation space and designability by incorporating a convexly curved main body cover and seat design, enhancing comfort and storage while maintaining aesthetic appeal.

JP7870136B2Active Publication Date: 2026-06-04LIXIL CORP

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
LIXIL CORP
Filing Date
2019-11-21
Publication Date
2026-06-04

AI Technical Summary

Technical Problem

The conventional design of toilet devices with a linearly formed upper surface in the front-rear direction narrows the accommodation space and compromises the designability of the main body cover.

Method used

The toilet device features a toilet seat with a central rear portion formed on the rear side in the left-right direction and a main body cover with a front upper surface that curves upward in a convex shape in the front-rear direction, avoiding alignment on a virtual extension line, thereby allowing for increased internal storage space while maintaining design aesthetics.

Benefits of technology

This design enhances the comfort of sitting on the toilet seat, ensures ample internal storage space, and improves the designability of the main body cover by maintaining a balance between form and function.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a toilet device capable of improving the design of the main body cover while securing the space for accommodating the inside of the main body cover.SOLUTION: A toilet device 1 includes a toilet body 2, and a toilet seat 11 that can be rotatably attached to the toilet body 2. The toilet body 2 includes a main body cover 3. The toilet seat 11 includes a central rear side portion 111b formed on the rear side of the central side in the left-right direction. The main body cover 3 includes a main body cover upper front surface 431 which is located behind the toilet seat 11 and is convexly curved upward in the front-back direction when the toilet seat 11 is in a closed position. The central rear side portion 111b is formed in a shape that avoids the main body cover upper front surface 431 from being positioned on the virtual extension line L1 that extends the upper surface of the central rear side portion 111b to the main body cover 3 side.SELECTED DRAWING: Figure 3
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Description

Technical Field

[0001] The present disclosure relates to a toilet device.

Background Art

[0002] Conventionally, a toilet device including a toilet body having a main body cover and a toilet seat rotatably attached to the toilet body is known (see, for example, Patent Document 1). The upper surface of the main body cover described in Patent Document 1 is formed linearly in the front-rear direction.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Since the upper surface of the main body cover described in Patent Document 1 is formed linearly in the front-rear direction, the accommodation space inside the main body cover may be narrowed. Since the upper surface of the main body cover is linear in the front-rear direction, there is room for improving the designability of the main body cover.

[0005] An object of the present disclosure is to provide a toilet device capable of improving the designability of the main body cover while securing the accommodation space inside the main body cover.

Means for Solving the Problems

[0006] This disclosure relates to a toilet device comprising a toilet body and a toilet seat rotatably attached to the toilet body, wherein the toilet body has a body cover, the toilet seat has a central rear portion formed on the rear side of the center in the left-right direction, the body cover has a front upper surface of the body cover that is positioned on the rear side of the toilet seat and curves upward in a convex shape in the front-rear direction, and the central rear portion is formed in a shape that avoids the front upper surface of the body cover being located on a virtual extension line that extends the upper surface of the central rear portion toward the body cover. [Brief explanation of the drawing]

[0007] [Figure 1] This is a perspective view showing a toilet facility. [Figure 2] This is an exploded perspective view of the upper part of the toilet unit. [Figure 3] This is a cross-sectional view along line AA in Figure 1. [Figure 4] This is a side view of the toilet unit. [Figure 5] This is a cross-sectional view along line BB in Figure 1. [Figure 6] Figure 1 is a cross-sectional view along the CC line. [Modes for carrying out the invention]

[0008] The following describes one embodiment of the toilet device 1 with reference to the drawings. In the following description, the front-to-back direction as viewed from the perspective of a user seated on the toilet seat 11 is referred to as the front-to-back direction. The left-to-right direction as viewed from the perspective of a user seated on the toilet seat 11 is referred to as the left-to-right direction. The up-and-down direction along the vertical direction with respect to the floor surface on which the toilet bowl 13 is installed is referred to as the up-and-down direction.

[0009] As shown in Figure 1, the toilet device 1 according to this embodiment comprises a toilet seat 11, a toilet lid 12, a toilet bowl 13, and a toilet body 2 having a main body cover 3.

[0010] The toilet bowl 13 is formed with an upward opening and is made of, for example, ceramic. The toilet seat 11 and toilet lid 12 are rotatably attached to the front of the toilet body 2 relative to the toilet bowl 13. The toilet seat 11 is the part on which the user sits and is positioned on the opening edge of the toilet bowl 13 and is formed in an annular shape. The toilet lid 12 is a lid that opens and closes to cover the opening of the toilet seat 11 and the toilet bowl 13.

[0011] The toilet seat 11 is positioned on top of the toilet bowl 13. As shown in Figure 2, the toilet seat 11 comprises a toilet seat body 111 and a pair of toilet seat hinge parts 112 (hinge parts). The toilet seat body 111 is formed in an oval shape with an opening 111a in the center.

[0012] As shown in Figure 2, the toilet seat body 111 has a central rear portion 111b formed on the rear side of the central side in the left-right direction of the toilet seat body 111. As shown in Figure 3, the central rear portion 111b is formed in a shape that avoids the front upper surface 431 (described later) of the main body cover of the toilet body 2 being located on a virtual extension line L1 that extends the upper surface of the central rear portion 111b toward the main body cover 3 (described later) when the toilet seat 11 is in the closed position. When the toilet seat 11 is in the closed position, the upper surface of the central rear portion 111b is formed in a curved shape that slopes upward from the front to the rear in the front-rear direction, and is formed in a concave shape.

[0013] As shown in Figure 2, the pair of toilet seat hinges 112 are positioned at both ends in the left-right direction on the rear end of the toilet seat 11 and extend from both ends on the rear side of the toilet seat body 111 toward the rear of the toilet seat 11. The pair of toilet seat hinges 112 are rotatably attached to a pair of shafts 471 provided on both the left-right sides of the base cover 4 (described later) of the main body cover 3 of the toilet body 2.

[0014] As shown in Figure 4, when the toilet seat 11 is in the closed position, the toilet seat hinge portion 112 curves upward from the front to the rear when viewed from the side of the toilet device 1. The toilet seat hinge portion 112 is formed with a convex curve on the upward side. The toilet seat hinge portion 112 is formed at a lower position than the front upper surface 431 (described later) of the main body cover of the base cover 4. In a side view, the toilet seat hinge portion 112 has an upper curved portion 113 formed at the top and a lower curved portion 114 formed at the bottom.

[0015] The upper curved portion 113 has a recessed curved portion 113a formed on the front side and a bulging curved portion 113b formed on the rear side. The recessed curved portion 113a is formed to curve slightly downwards. The bulging curved portion 113b is smoothly connected to the rear of the recessed curved portion 113a and is formed to curve slightly upwards. The lower curved portion 114 is formed to have a gentle upward slope from the front side to the rear side, and its lower surface is curved to curve slightly downwards.

[0016] The toilet lid 12 is positioned on top of the toilet seat 11. As shown in Figure 2, the toilet lid 12 comprises a toilet lid body 121 and a pair of toilet lid hinge parts 125. The toilet lid body 121 has a top plate 122, side wall plates 123, and a base-side folded-over piece 124. The top plate 122 is formed in a plate shape. The top plate 122 is formed to be curved convexly in the left-right direction. The base end of the top plate 122 extends in the left-right direction, and the tip end has rounded corners at both ends in the left-right direction.

[0017] The side wall panel 123 is formed to rise from the back surface of the top panel 122 at the front end side and the side edge portions of the top panel 122. The base side folded-back piece 124 is not shown in the figure. Referring to FIG. 3, when the toilet lid 12 is moved to the closed position and located at the closed position, it protrudes downward from the rear end portion on the central side in the left-right direction of the toilet lid 12 and extends in the left-right direction. The lower end portion of the base side folded-back piece 124 is arranged to face the upper surface 431 on the front side of the main body cover 4 (described later) of the base cover 4 of the main body cover 3 of the toilet body 2 when the toilet lid 12 is located at the closed position. The lower end portion of the base side folded-back piece 124 abuts against the upper surface 431 on the front side of the main body cover 4 of the base cover 4 of the toilet body 2 when a downward force acts on the toilet lid 12 in a state where the toilet lid 12 is located at the closed position.

[0018] As shown in FIG. 2, the pair of toilet lid hinge portions 125 are arranged at both ends in the left-right direction on the rear end side of the toilet lid 12 and extend rearward of the toilet lid 12 from both end portions on the rear side of the toilet lid main body 121. The pair of toilet lid hinge portions 125 are rotatably attached to a pair of shaft portions 472 provided on both sides in the left-right direction of the base cover 4 (described later) of the main body cover 3 of the toilet body 2.

[0019] As shown in FIG. 1, the toilet body 2 is arranged on the rear side of the toilet seat 11 and the toilet lid 12. The toilet body 2 includes a functional part 21 and a main body cover 3 arranged to cover the functional part 21. The functional part 21 is arranged on the upper part of the rear portion of the toilet bowl 13. The functional part 21 includes functional components (not shown).

[0020] The illustration of the functional components is omitted. The functional components are, for example, a warming device for the toilet seat 11, a toilet bowl cleaning device equipped with a cleaning tank, a shower nozzle for cleaning the user's private parts, a hose, a power supply unit, a control circuit board, an electric opening and closing unit for electrically opening and closing the toilet seat 11 and the toilet lid 12, a valve unit, various pipes, etc.

[0021] The main body cover 3 is a cover that covers the outer shape of the toilet body 2. As shown in FIG. 2, the main body cover 3 has a base cover 4 and a top cover 6.

[0022] The base cover 4 is arranged to cover the functional part 21 at the rear side of the toilet bowl 13. As shown in FIG. 2, the base cover 4 includes a pair of left and right side walls 41 having a triangular shape in side view, and a rear wall 42 extending in the left-right direction so as to connect the pair of side walls 41 at the rear part. The side and rear parts of the functional part 21 are surrounded by these walls. At the front side of the rear wall 42, there are a convex portion 43 formed at the center side in the left-right direction, a pair of hinge part lower side curved portions 44 (lower side portions of the hinge part) formed on both outer sides in the left-right direction at the lower part on the front side of the convex portion 43, and a front lower side portion 46 formed on the front side of the convex portion 43.

[0023] The protruding portion of the convex portion 43 protrudes upward and extends in both the left-right direction and the front-rear direction. The rear part side of the convex portion 43 extends toward the rear wall 42 side. At both ends in the left-right direction on the front side of the convex portion 43, two pairs of shaft portions 471, 472 are provided, which are arranged at intervals in the front-rear direction. The toilet seat 11 is connected to the front shaft portion 471 so as to be openable and closable. The toilet lid 12 is connected to the rear shaft portion 472 so as to be openable and closable.

[0024] The convex portion 43 has a front upper surface 431 of the main body cover. The front upper surface 431 of the main body cover is formed on the front side of the convex portion 43. As shown in Figure 3, the front upper surface 431 of the main body cover is formed with an upward slope in the front-rear direction, going upward from the front to the rear, and is convex upward in the front-rear direction. The base cover 4 is formed in a shape that avoids the position of the rear central portion 111b (described later) of the toilet seat 11 on a virtual extension line L2 that extends the central side of the front upper surface 431 of the main body cover toward the toilet seat 11. The front upper surface 431 of the main body cover is positioned below the root-side folded piece 124 formed at the rear end of the central side in the left-right direction of the toilet seat 12 when the toilet lid 12 is in the closed position, and is formed in a straight line in the left-right direction, as shown in Figure 5. The front upper surface 431 of the main body cover is the portion located below the lower end of the base-side folded piece 124, which is formed on the left-right central side of the toilet lid 12 when the toilet lid 12, described later, is in the closed position. The front upper surface 431 of the main body cover is formed in a shape corresponding to the lower end of the base-side folded piece 124. In this embodiment, as shown in Figure 5, the front upper surface 431 of the main body cover and the lower end of the base-side folded piece 124 are formed so that they are linearly parallel to each other in the left-right direction.

[0025] As shown in Figure 4, the lower curved portion 44 of the hinge is positioned below the toilet seat hinge portion 112 of the toilet seat 11 when the toilet seat 11 is in the closed position. The upper surface of the lower curved portion 44 of the hinge is formed to be convex upward so as to conform to the curved shape of the toilet seat hinge portion 112 of the toilet seat 11 when the toilet seat 11 is in the closed position.

[0026] The top cover 6 is positioned to cover the upper surface on the rear side of the convex portion 43 of the base cover 4. The top cover 6 is not secured by screws, but is engaged and fixed to the base cover 4. The top cover 6 is a cover that the user opens and closes. As shown in Figure 2, the top cover 6 has a top plate 61 and a U-shaped wall portion 62.

[0027] As shown in Figures 2 and 6, the top cover 6 has a rear upper surface 611 of the main body cover. The rear upper surface 611 of the main body cover is formed on the upper part of the base cover 4 that is rearward from the front upper surface 431 of the main body cover, and as shown in Figure 6, it is curved in a convex shape in the left-right direction. The convex portion 43 of the base cover 4, which is located below the top cover 6, is also curved in a convex shape in the left-right direction, similar to the rear upper surface 611 of the main body cover of the top cover 6.

[0028] The toilet device 1 of this embodiment described above provides the following effects. In the toilet device 1 of this embodiment, the toilet seat 11 has a central rear portion 111b formed on the rear side of the center in the left-right direction, and the main body cover 3 has a front upper surface 431 of the main body cover that is positioned on the rear side of the toilet seat 11 when the toilet seat 11 is in the closed position and is curved upward in a convex shape in the front-rear direction, and the central rear portion 111b is formed in a shape that avoids the front upper surface 431 (described later) of the main body cover of the toilet body 2 being located on a virtual extension line L1 that extends the upper surface of the central rear portion 111b toward the main body cover 3.

[0029] Therefore, even if the shape of the main body cover 3 is enlarged to increase the internal storage space, the shape of the upper surface of the central rear portion 111b can be formed in such a way that the front upper surface 431 of the main body cover of the toilet body 2 is not located on a virtual extension line L1 that extends the upper surface of the central rear portion 111b toward the main body cover 3. This improves the comfort of sitting on the toilet seat 11 and ensures internal storage space. Thus, it is possible to improve the comfort of sitting on the toilet seat 11, ensure internal storage space, and improve the design of the main body cover 3.

[0030] In this embodiment, the main body cover 3 is formed in a shape that avoids the position of the central rear portion 111b of the toilet seat 11 on a virtual extension line L2 that extends the central side of the front upper surface 431 of the main body cover toward the toilet seat 11. This makes it possible to increase the storage space inside the front upper surface 431 of the main body cover of the base cover 4.

[0031] In this embodiment, the upper surface of the central rear portion 111b is formed in a concave shape when the toilet seat 11 is in the closed position. As a result, the upper surface of the central rear portion 111b has a shape that easily avoids the main body cover 3. Therefore, storage space inside the main body cover 3 can be easily secured.

[0032] In this embodiment, the main body cover 3 has a front upper surface 431 which is positioned below the rear end of the toilet lid 12 on the left-right central side when the toilet lid 12 is in the closed position and is formed in a straight line in the left-right direction, and a rear upper surface 611 which is formed above the rear side of the front upper surface 431 and is curved in a convex shape in the left-right direction. As a result, the main body cover 3 can suppress the height below the rear end of the toilet lid 12 on the left-right central side at the front, while securing the storage space inside the main body cover 3 at the rear. Because the front upper surface 431 of the main body cover is formed in a straight line, when the toilet lid 12 is in the closed position and a downward force is applied to the toilet lid 12, causing the rear end of the toilet lid 12 on the left-right central side to come into contact with the front upper surface 431 of the base cover 4 of the main body cover 3 of the toilet body 2, the front upper surface 431 of the main body cover can receive the force uniformly.

[0033] In this embodiment, the toilet seat hinge portion 112 is formed at a lower position than the front upper surface 431 of the main body cover of the base cover 4. This allows for a larger storage space inside the front upper surface 431 of the main body cover of the base cover 4 on the left-right side of the toilet seat hinge portion 112.

[0034] In this embodiment, the toilet seat hinge portion 112 is formed to curve upwards from the front to the rear when the toilet seat 11 is in the closed position, and also curves upwards in a convex shape. This allows for a larger storage space inside the main body cover 3 below the toilet seat hinge portion 112.

[0035] In this embodiment, the main body cover 3 has a lower curved portion 44 of the hinge portion that is positioned below the toilet seat hinge portion 112 when the toilet seat 11 is in the closed position. The upper surface of the lower curved portion 44 of the hinge portion is formed to curve upward in a convex shape so as to conform to the shape of the toilet seat hinge portion 112 when the toilet seat 11 is in the closed position. This makes it possible to increase the storage space inside the main body cover 3 at the lower curved portion 44 of the hinge portion.

[0036] Preferred embodiments of the present disclosure have been described above. The present disclosure is not limited to the embodiments described above and can be modified as appropriate. For example, in the above embodiment, the upper surface of the central rear portion 111b of the toilet seat 11 is formed in a concave curve. However, it is not limited to this, and the upper surface of the central rear portion 111b of the toilet seat 11 may be formed in a straight line. [Explanation of Symbols]

[0037] 1 Toilet device, 2 Toilet body, 3 Body cover, 11 Toilet seat, 12 Toilet lid, 44 Lower curved part of hinge (lower part of hinge), 111b Rear central part, 112 Toilet seat hinge (hinge part), 431 Front upper surface of body cover, 611 Rear upper surface of body cover, L1 Virtual extension line, L2 Virtual extension line

Claims

1. A toilet device comprising a toilet body, a toilet seat rotatably attached to the toilet body, and a toilet lid positioned on top of the toilet seat, The toilet body has a body cover, The aforementioned toilet seat has a central rear portion formed on the rear side of the central side in the left-right direction, The main body cover, when the toilet seat is in the closed position, is positioned on the rear side of the toilet seat and has a front upper surface of the main body cover that is curved upward in a convex shape in the front-rear direction. The front upper surface of the main body cover is formed in a straight line in the left-right direction, and is positioned below the rear end on the left-right side of the center of the toilet lid when the toilet lid is in the closed position. The central rear portion is formed in such a shape that the front upper surface of the main body cover is not positioned on a virtual extension line extending the upper surface of the central rear portion toward the main body cover, and the virtual extension line extending the upper surface of the central rear portion toward the main body cover is formed in such a shape that it does not intersect the main body cover but is positioned above the main body cover. The main body cover has a rear upper surface formed on the upper part of the rear side of the front upper surface of the main body cover, which is curved in a convex shape in the left-right direction. The rear upper surface of the main body cover is formed by extending it along a virtual extension line behind the toilet lid, in a toilet device.

2. The toilet device according to claim 1, wherein the main body cover is formed in a shape that avoids the position of the central rear portion of the toilet seat on a virtual extension line that extends the central side of the front upper surface of the main body cover toward the toilet seat.

3. The toilet device according to claim 1 or 2, wherein the upper surface of the central rear portion is formed to be curved in a concave shape when the toilet seat is in the closed position.

4. The toilet seat comprises a toilet seat body and a pair of hinges extending rearward from the toilet seat body and rotatably attached to the body cover. The toilet device according to any one of claims 1 to 3, wherein the hinge portion is formed at a position lower than the front upper surface of the main body cover.

5. The toilet seat comprises a toilet seat body and a pair of hinges extending rearward from the toilet seat body and rotatably attached to the body cover. The toilet device according to any one of claims 1 to 4, wherein the hinge portion is formed to curve upwards from the front to the rear and to curve upwards in a convex shape when the toilet seat is in the closed position.

6. The main body cover has a lower hinge portion that is positioned below the hinge portion when the toilet seat is in the closed position. The toilet device according to claim 5, wherein the upper surface of the lower portion of the hinge is formed to be convex upward so as to conform to the shape of the hinge when the toilet seat is in the closed position.