Toilet lid and cushion rubber

Abstract

To provide a toilet lid and a cushion rubber which can reduce a colliding sound when a toilet seat collides with a cushion part attached to the toilet lid in opening the toilet seat while the toilet lid is in an open position, and can reduce damage to the toilet seat by slide resistance between the cushion part attached to the toilet lid and the toilet seat in opening / closing the toilet lid and the toilet seat simultaneously.SOLUTION: In a toilet lid 12 provided on a toilet device 1, a cushion part 4 includes a first site 41 where a toilet seat 11 collides in opening the toilet seat 11 while the toilet lid 12 is in an open position and a second site 42 arranged on a tip end side with respect to the first site 41. The first site 41 has lower rigidity against pressing force than the second site 42.SELECTED DRAWING: Figure 3A

Description

[Technical Field]

[0001] The present disclosure relates to toilet lids and cushion gums. [Background technology]

[0002] Conventionally, toilet devices equipped with a toilet seat and a toilet lid have been known (see, for example, Patent Document 1). The toilet lid described in Patent Document 1 has a cushion attached to the back surface thereof, against which the toilet seat collides when the toilet seat is opened with the toilet lid in the open position. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-130167 Summary of the Invention [Problem to be solved by the invention]

[0004] When the toilet lid and toilet seat are opened and closed simultaneously, the toilet seat may be scratched due to the sliding resistance between the cushion attached to the underside of the toilet lid and the toilet seat. Patent Document 1 does not take into consideration the possibility of scratches on the toilet seat due to the sliding resistance between the cushion attached to the underside of the toilet lid and the toilet seat. Reducing the contact area is an effective way to reduce sliding resistance. However, if the contact area is reduced, the sound generated when the toilet seat is opened with the toilet lid in the open position and the toilet seat hits the cushion attached to the underside of the toilet lid becomes louder.

[0005] The present disclosure aims to provide a toilet lid and cushion rubber that can reduce the impact noise when the toilet seat collides with a cushion part attached to the toilet lid when the toilet seat is opened with the toilet lid in the open position, and can also reduce damage to the toilet seat caused by sliding resistance between the cushion part attached to the toilet lid and the toilet seat when the toilet lid and toilet seat are opened and closed simultaneously. [Means for solving the problem]

[0006] The present disclosure relates to a toilet lid provided in a toilet device, the toilet lid having a cushion portion, the cushion portion having a first portion against which the toilet seat collides when the toilet seat is opened while the toilet lid is in an open position, and a second portion located further forward than the first portion, the first portion having lower rigidity against pressure than the second portion. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view showing a toilet device according to a first embodiment. [Figure 2A] FIG. 2 is a front view showing the toilet lid in the open position. [Figure 2B] FIG. 2B is a cross-sectional view taken along line AA in FIG. 2A. [Figure 3A] FIG. 10 is a front view showing the toilet seat open with the toilet lid in the open position. [Figure 3B] FIG. 3B is a cross-sectional view taken along line BB in FIG. 3A. [Figure 4] FIG. 2 is a cross-sectional view showing the toilet lid and seat in the closed position. [Figure 5] 10 is a cross-sectional view showing a state in which a center cushion rubber is attached to a center cushion receiving portion. FIG. [Figure 6] FIG. 10 is a perspective view showing a state in which the center cushion rubber has been removed from the center cushion receiving portion. [Figure 7] FIG. 10 is a diagram showing a toilet lid according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] (First embodiment) A first embodiment of the toilet device 1 will be described below with reference to the drawings. In the following description, the front-to-back direction as seen by a user seated on the toilet seat 11 is referred to as the front-to-back direction. The left-to-right direction as seen by a user seated on the toilet seat 11 is referred to as the left-to-right direction. The vertical direction is referred to as the up-down direction.

[0009] As shown in FIG. 1, the toilet device 1 according to the first embodiment includes a toilet seat 11, a toilet lid 12, a toilet bowl 13, and a functional part 2.

[0010] The toilet bowl 13 is formed with an opening facing upward and is made of, for example, ceramic. The toilet seat 11 and toilet lid 12 are attached to the front of the functional part 2 so as to be rotatable relative to the toilet bowl 13. The toilet seat 11 is the part on which a user sits, and is placed on the edge of the opening of the toilet bowl 13 and formed in an annular shape. The toilet lid 12 is a lid that covers the opening of the toilet seat 11 and toilet bowl 13 in an openable and closable manner.

[0011] The toilet seat 11 and toilet lid 12 are attached to the functional part 2. The functional part 2 is arranged behind the toilet seat 11 and toilet lid 12. The functional part 2 comprises a functional part 21 and a cover member 3 arranged to cover the functional part 21. The functional part 21 is arranged above the rear part of the toilet bowl 13. The cover member 3 is a cover that covers the outer shape of the functional part 2. The cover member 3 has a base cover 31 and a top cover 32.

[0012] The toilet seat 11 is placed on top of the toilet bowl 13. The toilet seat 11 includes a toilet seat body 111 and a pair of toilet seat hinge portions 112. The toilet seat body 111 is formed in an oval shape with an opening 111a formed in the center.

[0013] The pair of toilet seat hinge parts 112 are arranged at both left and right ends of the rear end of the toilet seat 11, and extend from both rear end parts of the toilet seat main body 111 toward the rear of the toilet seat 11. The pair of toilet seat hinge parts 112 are rotatably attached to the front side of the functional part 2.

[0014] The toilet lid 12 is placed on top of the toilet seat 11. As shown in FIG. 2A, the toilet lid 12 comprises a toilet lid main body 120 and a pair of toilet lid hinge portions 121. The toilet lid main body 120 is formed in a symmetrical shape and has a top panel 122, side wall panels 123, and a base fold-back piece 124. The top panel 122 is formed in a plate shape. The top panel 122 extends from the base to the tip. The base end of the top panel 122 is formed to extend in the left-right direction, and the corners on both left-right end sides at the tip are rounded. The back surface of the top panel 122 is provided with one center cushion portion 4 (cushion portion) and two end cushion portions 7.

[0015] The side wall panels 123 are formed to rise from the rear surface of the top panel 122 at the leading and lateral edges of the top panel 122. When the toilet lid 12 is moved to the closed position, the base fold piece 124 protrudes downward from the rear end of the toilet lid 12 on the left-right center side and extends left-right.

[0016] The pair of toilet lid hinge parts 121 are arranged at both left and right ends of the rear end of the toilet lid 12, and extend from both rear ends of the toilet lid main body 120 toward the rear of the toilet lid 12. The pair of toilet lid hinge parts 121 are rotatably attached to the functional part 2.

[0017] 2A and 2B, one central cushion portion 4 and two end-side cushion portions 7 are disposed on the back surface of the top panel 122. The one central cushion portion 4 and two end-side cushion portions 7 are disposed on the front end side of the top panel 122 on the back surface of the top panel 122.

[0018] 2A and 2B, one central cushion portion 4 is disposed at the tip end side on the central side in the left-right direction on the back surface of the top panel 122. The two end side cushion portions 7 are disposed on the outside of the central cushion portion 4 in the left-right direction, at positions aligned with the central cushion portion 4 in the left-right direction on the back surface of the top panel 122.

[0019] As shown in Fig. 3A, the two end-side cushion portions 7 are positioned so that they will not collide when the toilet seat 11 is opened with the toilet lid 12 in the open position. In this embodiment, the rotation axis J1 of the toilet seat 11 and the rotation axis J2 of the toilet lid 12 are positioned at positions offset in the front-to-rear direction as shown in Fig. 3B, and the corners on both left and right ends of the leading edge of the toilet seat 11 are rounded as shown in Fig. 3A. Therefore, as shown in Figs. 3A and 3B, the two end-side cushion portions 7 do not abut the toilet seat 11 when the toilet seat 11 and the toilet lid 12 are in the open position, and when the toilet seat 11 and the toilet lid 12 are closed simultaneously from the open position, they slide against the upper surface of the toilet seat 11 starting partway through the closing motion.

[0020] As shown in Figure 4, the two end cushion portions 7 are positioned in contact with the upper surface of the toilet seat 11 when the toilet seat 11 and toilet lid 12 are in the closed position. As a result, the two end cushion portions 7 contact the upper surface of the toilet seat 11 at both left and right ends to prevent the toilet lid 12 from rattling.

[0021] As shown in Figures 2A and 2B, the two end-side cushion sections 7 have an end-side cushion receiving section 71 and an end-side cushion rubber 72. The end-side cushion receiving section 71 is formed in a cylindrical shape and is formed to rise from the underside of the toilet lid 12. The end-side cushion rubber 72 is attached to the end-side cushion receiving section 71 and protrudes in a dome shape. The top of the end-side cushion section 7 is formed at a position higher from the underside of the toilet lid 12 than the top of the center-side cushion section 4.

[0022] When the toilet seat 11 is opened from a state in which the toilet lid 12 is in the open position as shown in Figures 2A and 2B, the central cushion portion 4 collides with the upper surface of the toilet seat 11 as shown in Figures 3A and 3B.

[0023] In this embodiment, as shown in Figure 3B, the rotation axis J1 on the toilet seat 11 side and the rotation axis J2 on the toilet lid 12 side are positioned so as to be offset in the front-to-rear direction. Therefore, as shown in Figures 3A and 3B, when the toilet seat 11 and the toilet lid 12 are simultaneously closed from a state in which they are in the open position, the center cushion part 4 moves while sliding on the upper surface of the toilet seat 11 during the closing process. As shown in Figure 4, when the toilet seat 11 and the toilet lid 12 are simultaneously opened from a state in which they are in the closed position, the center cushion part 4 moves while sliding on the upper surface of the toilet seat 11 during the opening process.

[0024] The top of the center cushion portion 4 is formed at a position lower from the underside of the toilet lid 12 than the top of the end cushion portions 7. Therefore, as shown in Figure 4, when the toilet seat 11 and toilet lid 12 are in the closed position, the center cushion portion 4 does not come into contact with the top surface of the toilet seat 11 because the two end cushion portions 7 are in contact with the top surface of the toilet seat 11.

[0025] The central cushion portion 4 will now be described in detail. In this embodiment, the description of the central cushion portion 4 will mainly focus on the configuration when the toilet lid 12 is in the open position. As shown in Figures 2A and 2B, the central cushion portion 4 is formed in an elongated shape that extends in the vertical direction when the toilet lid 12 is in the open position. In describing the central cushion portion 4 of this embodiment, the vertical direction in which the central cushion portion 4 extends is also referred to as the "vertical direction," and the left-right direction (width direction) perpendicular to the longitudinal direction is also referred to as the "lateral direction."

[0026] 5 and 6, the central cushion portion 4 has a vertically elongated central cushion receiving portion 5 (cushion rubber receiving portion) that extends vertically, and a vertically elongated central cushion rubber 6 (cushion rubber) that extends vertically. The central cushion receiving portion 5 is provided on the back surface of the toilet lid 12. The central cushion rubber 6 is attached to the central cushion receiving portion 5.

[0027] 5, when viewed from another perspective, the central cushion portion 4 is formed in an elongated shape extending vertically when the central cushion rubber 6 is attached to the central cushion receiving portion 5, and has a first portion 41 and a second portion 42. The first portion 41 is a portion on the base side of the top panel 122, and the second portion 42 is a portion on the tip side of the top panel 122.

[0028] As shown in Figures 3A and 3B, the first portion 41 is formed in a position where it will collide with the toilet seat 11 when the toilet seat 11 is opened while the toilet lid 12 is in the open position. The first portion 41 is formed to have lower rigidity against pressure than the second portion 42. The second portion 42 is positioned closer to the tip of the top panel 122 than the first portion 41. The second portion 42 is formed to have higher rigidity against pressure than the first portion 41.

[0029] The configurations of the center cushion receiving portion 5 and the center cushion rubber 6 that constitute the center cushion portion 4 will be described.

[0030] As shown in Figures 5 and 6, the center cushion receiving portion 5 is formed in an elongated shape that extends vertically when the toilet lid 12 is in the open position. The center cushion receiving portion 5 has a receiving portion-side peripheral wall portion 51 formed in an elongated ring shape that extends vertically, three horizontal ribs 52 (receiving portion-side ribs), horizontal fixing ribs 53 that are spaced apart on both sides of each of the three horizontal ribs 52 in the horizontal direction, a base-side fixing rib 54, and a tip-side fixing rib 55. When the center cushion rubber 6 is attached to the center cushion receiving portion 5, the three horizontal ribs 52, the multiple horizontal fixing ribs 53, the base-side fixing rib 54, and the tip-side fixing rib 55 protrude from the back surface of the top panel 122 inside the receiving portion-side peripheral wall portion 51 toward the center cushion rubber 6.

[0031] The three horizontal ribs 52 are each formed in the shape of a plate extending laterally inside the receiving-part-side peripheral wall 51. The three horizontal ribs 52 are arranged side by side and spaced apart in the vertical direction of the receiving-part-side peripheral wall 51. The three horizontal ribs 52 are all the same height from the rear surface of the top panel 122. The tips of the three horizontal ribs 52 in the height direction are formed into a curved surface with a convex curve at the center in the horizontal direction. The three horizontal ribs 52, from the base side to the tip side of the top panel 122, are a base-side horizontal rib 521, an intermediate horizontal rib 522, and a tip-side horizontal rib 523. The base-side horizontal rib 521 is arranged in a portion corresponding to the first portion 41. The intermediate horizontal rib 522 and tip-side horizontal rib 523 are arranged in portions corresponding to the second portion 42.

[0032] The root-side horizontal rib 521 is disposed at a portion corresponding to the first portion 41 on the root side of the top panel 122 in the vertical direction of the central cushion receiving portion 5. When the central cushion rubber 6 is attached to the central cushion receiving portion 5, as shown in FIG. 5 , the root-side horizontal rib 521 is disposed at the center in the horizontal direction, separated by a first gap S1 from a first cushion vertical rib portion 631 (described later) of the cushion rubber vertical rib 63 of the central cushion rubber 6.

[0033] The intermediate horizontal rib 522 is disposed in a portion corresponding to the second portion 42, at approximately the center in the longitudinal direction of the central cushion receiving portion 5. As shown in FIG. 5 , when the central cushion rubber 6 is attached to the central cushion receiving portion 5, the intermediate horizontal rib 522 is disposed opposite a tip-side cushion horizontal rib 642 (described later) that is the lowest of the cushion rubber horizontal ribs 64.

[0034] The intermediate horizontal rib 522 and a tip-side cushion horizontal rib 642 (described later) at the lowermost side of the cushion rubber horizontal rib 64 are arranged opposite each other over almost the entire width in the horizontal direction, with the gap increasing toward the end in the horizontal direction. As shown in Fig. 5, the intermediate horizontal rib 522 is arranged at the center in the horizontal direction to face the intersection of a second cushion vertical rib portion 632 (described later) of the cushion rubber vertical rib 63 of the central cushion rubber 6 and a tip-side cushion horizontal rib 642 (described later) at the lowermost side of the cushion rubber horizontal rib 64, with a second gap S2 smaller than the first gap S1 (almost no gap).

[0035] The tip-side horizontal rib 523 is disposed at a portion corresponding to the second portion 42 on the tip side of the top panel 122 in the vertical direction of the central cushion receiving portion 5. When the central cushion rubber 6 is attached to the central cushion receiving portion 5, the tip-side horizontal rib 523 is disposed opposite a second cushion vertical rib portion 632 (described later) of the cushion rubber vertical rib 63 of the central cushion rubber 6 at the center in the horizontal direction, with a second gap S2 smaller than the first gap S1 (almost no gap), as shown in FIG.

[0036] The horizontal fixing ribs 53 are arranged to protrude laterally inward from the inner surface of the receiving-part-side peripheral wall 51, spaced apart on both sides of each of the three horizontal ribs 52. The vertical wall 621 of the cushion rubber peripheral wall 62 of the center-side cushion rubber 6 is sandwiched and fixed between the horizontal ribs 52 and the horizontal fixing rib 53.

[0037] The root-side fixing rib 54 has two root-side rib pieces 541, 542. The two root-side rib pieces 541, 542 are arranged on the root side of the top panel 122 in the receiving-portion-side peripheral wall portion 51, and are spaced apart in the vertical direction. The upper horizontal wall 622 of the cushion rubber peripheral wall portion 62 of the center-side cushion rubber 6 is sandwiched and fixed between the two root-side rib pieces 541, 542.

[0038] The tip-side fixing rib 55 has two tip-side rib pieces 551, 552. The two tip-side rib pieces 551, 552 are arranged on the tip side of the top panel 122 in the receiving-portion-side peripheral wall portion 51, and are spaced apart in the vertical direction. The lower horizontal wall 623 of the cushion rubber peripheral wall portion 62 of the center-side cushion rubber 6 is sandwiched and fixed between the two tip-side rib pieces 551, 552.

[0039] 5 and 6, the center cushion rubber 6 has a cushion rubber top surface portion 61, a cushion rubber peripheral wall portion 62, a cushion rubber vertical rib 63 (rubber-side rib), and a plurality of cushion rubber horizontal ribs 64 (rubber-side ribs) arranged to intersect with the cushion rubber vertical rib. When the toilet seat 11 is opened with the toilet lid 12 in the open position, the surface of the cushion rubber top surface portion 61 can abut against the upper surface of the toilet seat 11.

[0040] The cushion rubber top surface portion 61 is disposed parallel to the top panel 122. The cushion rubber top surface portion 61 is formed in the shape of a thick plate, and extends in an elongated shape in the vertical direction. The cushion rubber top surface portion 61 has a first cushion top surface portion 611 (cushion rubber of the first portion 41, first cushion portion) corresponding to the first portion 41, and a second cushion top surface portion 612 (cushion rubber of the second portion 42, second cushion portion) corresponding to the second portion 42. The thickness of the first cushion top surface portion 611 is formed thinner than the thickness of the second cushion top surface portion 612.

[0041] The material that constitutes the first cushion top surface portion 611 and the second cushion top surface portion 612 is not particularly limited, and a resin material can be used, for example, a material such as an elastomer.

[0042] The first cushion top surface portion 611 is located on the base side of the top panel 122. When the toilet seat 11 is opened with the toilet lid 12 in the open position, the toilet seat 11 collides with the first cushion top surface portion 611. The second cushion top surface portion 612 is located closer to the tip of the top panel 122 than the first cushion top surface portion 611. The first cushion top surface portion 611 and the second cushion top surface portion 612 are formed to have different thicknesses, are formed on the same plane on the front surface side, and are formed in a stepped shape with a sloping surface at the connecting portion on the back surface.

[0043] The thickness of the first cushion top surface portion 611 is formed to be thinner than the thickness of the second cushion top surface portion 612. The connecting portion between the first cushion top surface portion 611 and the second cushion top surface portion 612 is formed to be inclined on the back surface. By making the thickness of the first cushion top surface portion thinner than the thickness of the second cushion top surface portion, the rigidity of the first portion 41 against pressure is made lower than the rigidity of the second portion 42 against pressure.

[0044] The material of the first cushion top surface portion 611 is formed to be softer than the material of the second cushion top surface portion 612. By making the material of the first cushion top surface portion 611 softer than the material of the second cushion top surface portion 612, the rigidity of the first portion 41 against pressure is made lower than the rigidity of the second portion 42 against pressure.

[0045] When the material of the first cushion top surface portion 611 is configured to be softer than the material of the second cushion top surface portion 612, for example, elastomers with different hardness can be used as the materials of the first cushion top surface portion 611 and the second cushion top surface portion 612. For example, a hard material such as polystyrene, polyethylene (PE), POM (polyacetal resin), ASA resin, etc. can be used as the material of the second cushion top surface portion 612, and a soft material such as elastomer can be used as the material of the first cushion top surface portion 611.

[0046] The cushion rubber peripheral wall portion 62 is formed in the shape of an elongated annular wall rising from the rear surface of the cushion rubber top surface portion 61. The cushion rubber peripheral wall portion 62 is fixed to the central cushion receiving portion 5. The cushion rubber peripheral wall portion 62 has a pair of vertical walls 621 arranged apart in the horizontal direction, each of which is sandwiched and fixed between the horizontal rib 52 and the horizontal fixing rib 53, with the upper horizontal wall 622 fixed to the tip side fixing rib 55 and the lower horizontal wall 623 fixed to the base side fixing rib 54.

[0047] The cushion rubber vertical rib 63 is formed in a plate shape extending across the entire vertical area inside the cushion rubber peripheral wall portion 62, at the center in the horizontal direction of the cushion rubber peripheral wall portion 62. When the central cushion rubber 6 is attached to the central cushion receiving portion 5, the cushion rubber vertical rib 63 protrudes from the back surface of the cushion rubber top surface portion 61 toward the central cushion receiving portion 5.

[0048] The upper surface of the cushion rubber vertical rib 63 is formed flat. The height of the cushion rubber vertical rib 63 from the rear surface of the cushion rubber top surface portion 61 is formed lower than the height of the cushion rubber peripheral wall portion 62.

[0049] The cushion rubber vertical rib 63 has a first cushion vertical rib portion 631 corresponding to the first portion 41 and a second cushion vertical rib portion 632 corresponding to the second portion 42. The first cushion vertical rib portion 631 is formed on the base side of the top panel 122. The second cushion vertical rib portion 632 is formed on the tip side of the top panel 122 with respect to the first cushion vertical rib portion 631.

[0050] The height of the first cushion vertical rib portion 631 from the surface of the cushion rubber top surface portion 61 is formed lower than the height of the second cushion vertical rib portion 632 from the surface of the cushion rubber top surface portion 61. The first cushion vertical rib portion 631 and the second cushion vertical rib portion 632 are formed with an inclined connection portion on the back surface of the cushion rubber vertical rib 63. The heights of the first cushion vertical rib portion 631 and the second cushion vertical rib portion 632 from the back surface of the cushion rubber top surface portion 61 are all the same, and the thickness of the portion of the cushion rubber top surface portion 61 corresponding to the first portion 41 and the thickness of the portion corresponding to the second portion 42 are different.

[0051] The multiple cushion rubber horizontal ribs 64 are each formed in a plate shape that rises from the back surface of the cushion rubber top surface portion 61 and extends horizontally inside the cushion rubber peripheral wall portion 62. The top surfaces of the tips of the multiple cushion rubber horizontal ribs 64 are formed in a flat shape. The multiple cushion rubber horizontal ribs 64 are arranged side by side, spaced apart in the vertical direction, inside the cushion rubber peripheral wall portion 62. The multiple cushion rubber horizontal ribs 64 are formed to intersect with the cushion rubber vertical ribs 63.

[0052] The multiple cushion rubber horizontal ribs 64 are, in order from the base side to the tip side of the top panel 122, two base side cushion horizontal ribs 641 and three tip side cushion horizontal ribs 642. The two base side cushion horizontal ribs 641 are spaced apart in the vertical direction and arranged in a portion corresponding to the first portion 41. The three tip side cushion horizontal ribs 642 are spaced apart in the vertical direction and arranged in a portion corresponding to the second portion 42.

[0053] The height of the two base side cushion horizontal ribs 641 from the surface of the cushion rubber top surface portion 61 is formed to be lower than the height of the three tip side cushion horizontal ribs 642 from the surface of the cushion rubber top surface portion 61. The height of the two base side cushion horizontal ribs 641 and the three tip side cushion horizontal ribs 642 from the back surface of the cushion rubber top surface portion 61 are all the same height, which is the same as the height of the intersecting cushion rubber vertical ribs 63. The thickness of the portion of the cushion rubber top surface portion 61 corresponding to the first region 41 and the thickness of the portion corresponding to the second region 42 are different.

[0054] In the first portion 41, as shown in FIG. 5, the first cushion vertical rib portion 631 is positioned at a first gap S1 from the base side horizontal rib 521 of the central cushion receiving portion 5 when the central cushion rubber 6 is attached to the central cushion receiving portion 5.

[0055] In the second portion 42, when the central cushion rubber 6 is attached to the central cushion receiving portion 5, the second cushion vertical rib portion 632 is positioned at a second gap S2 (almost no gap) that is smaller than the first gap S1 from the intermediate horizontal rib 522 and the tip side horizontal rib 523 of the central cushion receiving portion 5.

[0056] As a result, in the first region 41, the first cushion vertical rib region 631 and the base-side horizontal rib 521 of the central cushion receiving portion 5 are spaced apart by a first gap S1. In the second region 42, the second cushion vertical rib region 632 and the intermediate horizontal rib 522 and tip-side horizontal rib 523 of the central cushion receiving portion 5 are spaced apart by a second gap S2 that is smaller than the first gap S1. In this way, the rigidity against pressure of the first region 41, which has a larger gap, is lower than the rigidity against pressure of the second region 42, which has a smaller gap.

[0057] The toilet lid 12 and center cushion rubber 6 of this embodiment described above provide the following effects: In this embodiment, the center cushion part 4 has a first part 41 that the toilet seat 11 collides with when the toilet seat 11 is opened with the toilet lid 12 in the open position, and a second part 42 that is located closer to the tip of the top panel 122 than the first part 41, and the first part 41 has lower rigidity against pressure than the second part 42.

[0058] Therefore, when toilet seat 11 is opened while toilet lid 12 is in the open position, first portion 41 has lower rigidity against pressure than second portion 42, so first portion 41 deforms and the contact area between first portion 41 and the upper surface of toilet seat 11 increases. This allows first portion 41 to absorb the impact of toilet seat 11, reducing the impact noise when toilet seat 11 collides with toilet lid 12.

[0059] The rigidity of second portion 42 is higher against pressure than the rigidity of first portion 41. Therefore, when second portion 42 comes into contact with the upper surface of toilet seat 11, the contact area with the upper surface of toilet seat 11 is smaller than when first portion 41 comes into contact with the upper surface of toilet seat 11. When the contact area with toilet seat 11 is small, the area over which dust and other particles are mixed up and the sliding contact is smaller than when the contact area with toilet seat 11 is large, thereby reducing damage to toilet seat 11. Therefore, when the toilet lid and toilet seat are opened and closed simultaneously, second portion 42, which has a smaller contact area with toilet seat 11 than first portion 41, slides against the upper surface of toilet seat 11, reducing damage to toilet seat 11 due to sliding resistance between center cushion portion 4 attached to toilet lid 12 and toilet seat 11.

[0060] In this embodiment, the thickness of the first cushion top surface portion 611 is thinner than the thickness of the second cushion top surface portion 612. As a result, the rigidity of the thinner first portion 41 against pressure is lower than the rigidity of the thicker second portion 42 against pressure. Therefore, just as in the case where the rigidity of the first portion 41 against pressure is lower than the rigidity of the second portion 42 described above, the impact noise when the toilet seat 11 collides with the toilet lid 12 when the toilet seat is opened with the toilet lid 12 in the open position can be reduced, and damage to the toilet seat 11 due to sliding resistance between the central cushion portion 4 attached to the toilet lid 12 and the toilet seat 11 can be reduced when the toilet lid 12 and the toilet seat 11 are opened and closed simultaneously.

[0061] In this embodiment, the material of the first cushion top surface portion 611 is softer than the material of the second cushion top surface portion 612. As a result, the rigidity of the first portion 41, which is made of a soft material, against pressure is lower than the rigidity of the second portion 42, which is made of a hard material. Therefore, just as in the case where the rigidity of the first portion 41 against pressure is lower than that of the second portion 42, the impact noise caused when the toilet seat 11 collides with the toilet lid 12 when the toilet seat is opened with the toilet lid 12 in the open position can be reduced, and damage to the toilet seat 11 due to sliding resistance between the central cushion portion 4 attached to the toilet lid 12 and the toilet seat 11 can be reduced when the toilet lid 12 and the toilet seat 11 are opened and closed simultaneously.

[0062] In this embodiment, the first gap S1 between the base side horizontal rib 521 of the top panel 122 of the central cushion support portion 5 and the first cushion vertical rib portion 631 of the central cushion rubber 6 in the first portion 41 is formed wider than the second gap S2 between the middle horizontal rib 522 and tip side horizontal rib 523 of the central cushion support portion 5 and the second cushion vertical rib portion 632 of the central cushion rubber 6 in the second portion 42.

[0063] As a result, the rigidity against pressure of first portion 41, which has a larger gap, is lower than the rigidity against pressure of second portion 42, which has a smaller gap. Therefore, just as in the case where first portion 41 has a lower rigidity against pressure than second portion 42, when the toilet seat is opened with toilet lid 12 in the open position, the impact noise when toilet seat 11 collides with toilet lid 12 can be reduced, and damage to toilet seat 11 caused by sliding resistance between central cushion portion 4 attached to toilet lid 12 and toilet seat 11 can be reduced when toilet lid 12 and toilet seat 11 are opened and closed simultaneously.

[0064] (Second embodiment) Next, a second embodiment will be described with reference to Fig. 7. In the second embodiment, differences from the first embodiment will be mainly described. In the second embodiment, descriptions that overlap with the first embodiment will be omitted as appropriate.

[0065] In the second embodiment, the configuration of the central cushion portion 4A is mainly different from the configuration of the central cushion portion 4 of the first embodiment.

[0066] The center cushion portion 4A (cushion portion) of the second embodiment has a first portion 46 and a second portion 47. The width of the first portion 46 in the lateral direction (left and right direction) is formed to be larger than the width of the second portion 47 in the lateral direction (left and right direction). As a result, when the toilet seat 11 collides, the first portion 46 has a larger contact area with the toilet seat 11 than the second portion 47. In the second embodiment, the first portion 46 and the second portion 47 are formed from materials of the same hardness.

[0067] Because first portion 46 is wider in the horizontal direction than second portion 47, the contact area with toilet seat 11 when it collides with it is larger. This allows first portion 46, which has a larger contact area with toilet seat 11, to absorb the collision of toilet seat 11, thereby reducing collision noise. When second portion 47 slides over the top surface of toilet seat 11, the contact area between second portion 47 and the top surface of toilet seat 11 is smaller than when second portion 47 comes into contact with first portion 46, reducing damage to toilet seat 11 caused by sliding resistance between second portion 47 and toilet seat 11.

[0068] As a result, in the second embodiment, as in the first embodiment, when the toilet seat is opened with the toilet lid 12 in the open position, the collision noise when the toilet seat 11 collides with the toilet lid 12 can be reduced, and when the toilet lid 12 and the toilet seat 11 are opened and closed simultaneously, damage to the toilet seat 11 due to the sliding resistance between the central cushion portion 4A attached to the toilet lid 12 and the toilet seat 11 can be reduced.

[0069] While the preferred embodiments of the present disclosure have been described above, the present disclosure is not limited to the above-described embodiments and can be modified as appropriate.

[0070] In the first embodiment, a configuration has been described in which the first region 41 of the central cushion portion 4 has lower rigidity against pressure than the second region 42 by varying the thickness of the cushion rubber, varying the hardness of the material of the cushion rubber, and varying the size of the gap between the rib of the cushion rubber and the rib of the cushion receiving portion. However, the present invention is not limited to this, and the first region 41 of the central cushion portion 4 may have lower rigidity against pressure than the second region 42 by varying one or more of the thickness of the cushion rubber, varying the hardness of the material of the cushion rubber, and varying the size of the gap between the rib of the cushion rubber and the rib of the cushion receiving portion.

[0071] In the second embodiment, the first portion 46 and the second portion 47 of the central cushion portion 4 are formed from materials of the same hardness. This is not limiting. In the second embodiment, the width of the first portion 46 in the lateral direction (left-right direction) is formed larger than the width of the second portion 47 in the lateral direction (left-right direction), it is also possible to combine some or all of the configurations of the first embodiment (the configuration in which the hardness of the material of the cushion rubber is made different, the configuration in which the thickness of the cushion rubber is made different, and the configuration in which the size of the gap between the rib of the cushion rubber and the rib of the cushion support portion is made different).

[0072] In the first and second embodiments, the central cushion portion 4 is provided in the center in the left-right direction on the underside of the toilet lid 12. However, this is not limiting. For example, a pair of cushion portions may be provided on both left-right sides of the underside of the toilet lid 12. [Explanation of symbols]

[0073] 1 toilet device, 4 central cushion portion (cushion portion), 5 central cushion support portion (cushion rubber support portion), 6 central cushion rubber (cushion rubber), 11 toilet seat, 12 toilet lid, 41 first portion, 42 second portion, 52 horizontal rib (support portion side rib), 63 cushion rubber vertical rib (rubber side rib), 64 cushion rubber horizontal rib (rubber side rib), 611 first cushion top surface portion (cushion rubber of first portion, first cushion portion), 612 second cushion top surface portion (cushion rubber of second portion, second cushion portion), S1 first gap, S2 second gap

Claims

1. A toilet lid provided in a toilet device, The toilet lid has a cushion portion, The cushion portion has a first portion with which the toilet seat collides when the toilet seat is opened with the toilet lid in the open position, and a second portion located further forward than the first portion, The first portion has lower rigidity against pressure than the second portion, The first portion and the second portion each have a cushion rubber and a cushion rubber receiving portion that is disposed on the rear surface of the toilet lid and to which the cushion rubber is attached, the cushion rubber has a rubber-side rib that protrudes toward the cushion rubber receiving portion, the cushion rubber receiving portion has a receiving portion side rib that protrudes toward the cushion rubber, A toilet lid, wherein a first gap between the receiving portion side rib and the rubber side rib in the first region is wider than a second gap between the receiving portion side rib and the rubber side rib in the second region.

2. The first portion and the second portion each have a cushion rubber, The toilet lid according to claim 1, wherein the thickness of the cushion rubber in the first region is thinner than the thickness of the cushion rubber in the second region.

3. The first portion and the second portion each have a cushion rubber, The toilet lid according to claim 1 or 2, wherein the material of the cushion rubber in the first region is softer than the material of the cushion rubber in the second region.

4. A cushion rubber placed on the backside of a toilet lid provided in a toilet device, The cushion rubber has a first cushion portion with which the toilet seat collides when the toilet seat is opened with the toilet lid in the open position, and a second cushion portion located further to the tip side than the first cushion portion, The first cushion portion has lower rigidity against pressure than the second cushion portion, The cushion rubber is attached to a cushion rubber receiving portion, the cushion rubber has a rubber-side rib that protrudes toward the cushion rubber receiving portion, the cushion rubber receiving portion has a receiving portion side rib that protrudes toward the cushion rubber, A cushion rubber in which a first gap between the receiving portion side rib and the rubber side rib in the first cushion region is wider than a second gap between the receiving portion side rib and the rubber side rib in the second cushion region.

5. The cushion gum according to claim 4 , wherein the thickness of the cushion gum in the first cushion region is thinner than the thickness of the cushion gum in the second cushion region.

6. The cushion rubber according to claim 4 or 5, wherein the material of the first cushion portion is softer than the material of the second cushion portion.

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