JP2015027334A - Sealing type bathtub lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sealing type bathtub lid which more improves sealing and heat insulation effects by adopting a solid plate bathtub lid for reducing a seal portion, bringing into tight contact on a surface by providing a seal in a location where the bathtub lid and a bathtub are brought into contact, and further pressing the bathtub lid with a force of a spring.SOLUTION: The sealing type bathtub lid comprises: a seal part, at an edge of the solid plate bathtub lid, which is brought into tight contact with an upper edge of a bathtub; opening/closing frame which is opened/closed by substantially perpendicularly rotating the bathtub lid and includes an axial support part in the vicinity of an upper edge of the bathtub; and a ventilation valve part which is located in the center of the bathtub lid, connected with the opening/closing frame part for supporting the bathtub lid, and formed from a single or a plurality of inversely conical ventilation valves for ventilating the inside of the bathtub.

Description

  The present invention relates to a hermetic bath lid capable of keeping a single bath lid and a bathtub in close contact to keep hot water in the bathtub and preventing a decrease in the temperature of the hot water.

  Conventionally, even when hot water in a boiled bathtub closes the bath lid, the temperature of the hot water has decreased, especially in winter due to heat dissipation and intrusion of outside air, etc., because the bath lid and bathtub are not in close contact with each other. It was. As a result, there is a problem that the consumption of electric power and fuel for reheating the hot water increases, and that people who are immersed in the bathtub later feel uncomfortable due to a decrease in the temperature of the hot water.

  Therefore, conventionally, a bath lid that suppresses a drop in the water temperature of the bathtub has been invented. For example, in a bath lid having a movable edge that is rotatable at both ends on the long side of the bathtub, and the bath lid is divided into two. In order to eliminate the gap between the bathtub and the bath lid, a prior art of a bath lid in which a rib is provided on the outer periphery of the movable edge has been disclosed (Reference 1).

Japanese Patent Laying-Open No. 2005-304592 ([0006] to [0021], [FIG. 2], [FIG. 5])

  Although the prior art of Patent Document 1 discloses that the gap between the bath lid and the bathtub is eliminated, the bath lid and the bathtub are in contact with each other with a line, so there is little thermal insulation effect, and the water temperature in the bathtub is lowered. Then, the air in the bathtub contracts and the atmospheric pressure decreases, so that cold air in the bathroom flows into the bathtub and the temperature of the hot water decreases.

  The present invention solves these problems, and in order to reduce the seal portion, a single bath lid is adopted, and a seal is provided at a location where the bath lid and the bathtub are in contact with each other, thereby providing close contact with the surface. In addition, the present invention provides a hermetic bath lid that further enhances the seal and the heat insulating effect by pressing the bath lid with the force of a spring.

  In order to achieve the above object, a hermetic bath lid according to claim 1 of the present invention has a seal portion that is in close contact with the upper edge of the bathtub on the peripheral edge of a single bath lid, and a substantially right angle between the bath lid. An opening / closing frame part having a bearing part in the vicinity of the upper edge of the bathtub that rotates and opens and closes, and is located in the center of the bath lid so as to be connected to the opening / closing frame part to support the bath lid, And a ventilation valve portion made up of one or a plurality of inverted conical ventilation valves. In addition, the sealed bath lid according to claim 2 of the present invention is used as a single piece, has a seal portion for sealing the bathtub on the lower surface of the peripheral portion, and is singular or plural in the longitudinal direction from the center of the lid. A bath lid body having an inverted frustoconical vent, a vent valve portion for opening and closing the vent, and two bearing portions fixed to the upper surface of the outer edge of the bathtub on the side wall side of the bathroom or in the vicinity thereof An open / close frame portion that is supported by a shaft and rotates about 90 degrees from the horizontal to the vertical direction, and has a vent valve support portion fixed in the middle, and a spring mounting portion and an open / close frame portion in the vicinity of the bearing portion, respectively. A bath lid constituted by two tension springs provided between the intermediate portion and the cross-sectional shape of the seal portion is a substantially inverted triangular shape having a hypotenuse that is hollow and contacts the inner edge of the bathtub The opening and closing frame portions are respectively Two leg frames which are supported at one end by the bearing portion and extend in the transverse direction, are fixed in the longitudinal direction so as to be substantially orthogonal to the two leg frames, and the ventilation portion is provided in the intermediate portion. And a single center frame having a single or a plurality of valve support portions, and a handle frame fixed to be substantially orthogonal to the center portion of the center frame. A vent valve body having a substantially inverted truncated cone shape that opens and closes the vent hole by moving up and down, a valve shaft connected to the vent valve body, and an upper portion loosely fitted in a valve shaft guide hole of the vent valve support portion; A disc-shaped lower stopper provided at the lower end of the valve shaft and having a diameter larger than the lower diameter of the vent hole, and in a state where the bath lid main body is covered, the vent valve main body is interlocked with the opening / closing frame. Pressing and sealing the vent hole, and the opening and closing frame When opening the bath lid body, after the vent valve body is raised and the vent hole is ventilated, the lower stopper touches the vent hole to push up the bath lid body. .

In addition, the hermetic bath lid according to claim 3 of the present invention is characterized in that, in claim 2, the vent valve support portion is provided at an intersection of the leg frame and the center frame. According to a fourth aspect of the present invention, there is provided the hermetic bath lid according to the second or third aspect, wherein the tension spring is stretched between the spring mounting portion and a spring mounting portion of a center frame. The tension spring is arranged such that the tension angle with respect to the leg frame is downward when the bath lid is covered and upward when the bath lid is opened.

By adopting this configuration, the bath lid of the present invention fixes one end of the bearing part to a bearing base having a height, which is fixed to the upper surface of the outer edge of the bathtub on the side in contact with the side wall of the bathroom or in the vicinity thereof. The opening / closing frame portion is fixed to the other end of the bearing portion, and the bath lid body is also rotated in conjunction with the opening / closing frame portion to open / close.

Further, since one end of the tension spring is a center frame and the other end is a tension spring mounting portion, and the fixing portion is below the bearing portion of the leg frame, the open / close frame is in a substantially horizontal state, that is, the bath lid body In the closed state, the open / close frame can be pulled downward by the tension of the tension spring. That is, the open / close frame can press the bath lid body from above via the vent valve portion. Therefore, since airtightness is improved, the temperature fall of the hot water in a bathtub can be prevented. In addition, since the fixing portion is outside the bearing portion of the leg frame, when the opening and closing frame is in a substantially vertical state, that is, when the bath lid body is removed and stored, the opening and closing frame is pulled outward by the tension of the tension spring. In addition, since the bearing portion does not rotate outward from substantially vertical, the open / close frame is held in a substantially vertical state. That is, if the opening / closing frame is held in a substantially vertical state, the bath lid is also held in a substantially vertical state via the vent valve portion, so that the bath lid body falls down even if a person is in the bathtub. There is nothing.

In addition, a seal portion is provided on the lower surface of the peripheral edge of the bath lid body, and the cross-sectional shape of the seal portion is a hollow shape and is a substantially inverted triangular shape having a hypotenuse on the outside downward, so the inner edge of the bathtub and the seal of the bath lid body When the part comes into contact with the pressure, the seal part is deformed and can be sealed by surface contact. Furthermore, since the bath lid body can be pressed down strongly by the effect of the tension spring described above, it is possible to prevent the gap from being formed while maintaining the seal shape of the seal portion. Therefore, since the space | gap of a bath lid main body and a bathtub can be eliminated, external air does not enter in a bathtub and the temperature fall of the hot water in a bathtub can be prevented.

When the bath lid body is closed, the pressure balance valve has a substantially inverted frustoconical vent valve body that presses the vent valve body downward due to the weight of the vent valve body and the tension of the open / close frame. , Firmly fit into the vent hole of the generally inverted frustoconical bath lid body and hold down and seal. Also, when opening the bath lid body, if the open / close frame is lifted, the head of the valve stem of the vent valve part is caught on the vent valve support part, the valve stem moves upward, and is directly connected to the valve stem. As the vent valve body moves upward, the vent hole is opened. Therefore, the negative pressure due to the contraction of the air in the bathtub caused by the temperature drop of the hot water in the bathtub is released, and the bath lid body can be opened smoothly. Subsequently, the bath lid main body is hooked by the lower stopper, and the bath lid main body is also detached from the bathtub in accordance with the movement of the opening and closing frame, and can be further stored.

A hermetic bath lid according to claim 5 of the present invention is the hermetic bath cap according to any one of claims 1 to 4, wherein a recess is provided on a side wall of the bathroom to accommodate the bath lid body. Features.

By adopting this configuration, the bath lid body can be clearly stored in the storage portion when opened, so that it does not get in the way when the bath lid body is opened, and the appearance is good.

A sealed bath lid according to a sixth aspect is the bath lid according to the fifth aspect, wherein the handle frame has a substantially concave protrusion at the front end portion thereof, and the protrusion on the front end side is directed outward. One side bar is a side wall arm having a side wall wheel facing the inner side and a bathtub side arm having a substantially arc-shaped concave shape toward the inside and having a bathtub side wheel at the tip thereof. The horizontal bar and the handle frame are substantially T-shaped, and include a handle lever portion provided with a hinge so as to be rotatable at the intersection of the substantially T-shape, and the recess of the side wall. The ceiling has a downward ceiling convex portion that fits into the substantially concave shape of the side wall arm, and the outward bathtub convex portion that hooks the bathtub side wheel of the bathtub side arm on the side surface of the bathtub It is characterized by that.

  By adopting this configuration, when the bath lid body is set in the bathtub, the bathtub side wheel of the handle lever portion attached to the handle frame is provided on the side surface of the bathtub. It can be hooked and stopped by the bathtub convex part, and the state which pressed the bath lid main body can be maintained.

  Further, in a state where the bath lid main body is opened and stored, the side wheel and the other protrusion are fitted and held on the ceiling convex portion. Therefore, the appearance at the time of storage is good, and the storage state of the bath lid body can be reliably maintained.

  According to the bath lid of the first to fifth aspects of the present invention, the bath lid body can be brought into close contact with the bathtub, so that the temperature drop of the hot water in the bathtub can be prevented. By this, the person who takes a bath later does not have the discomfort by the temperature fall even if it immerses in a bathtub. Moreover, since the temperature drop of hot water can be prevented, fuel consumption due to reheating can be suppressed.

It is a typical whole perspective view of the bath lid concerning the form for carrying out the present invention. It is a typical top view of the bath lid concerning the form for carrying out the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a bath lid which concerns on the form for implementing this invention, Comprising: (a) is typical sectional drawing of the state which opened the bath lid main body, (b) is typical sectional of the state which covered the bath lid main body FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a bath lid which concerns on the form for implementing this invention, Comprising: (a) showing the detail of the vent valve part and the seal | sticker part is typical sectional drawing of the state which has opened the bath lid main body, (b) is The schematic cross-sectional view of the state at the moment of trying to open the bath lid body, (c) is a schematic cross-sectional view of the state where the bath lid body is closed. It is a bath lid which concerns on the form for implementing this invention, Comprising: It is a typical top view of an opening-and-closing frame. BRIEF DESCRIPTION OF THE DRAWINGS It is a bath lid which concerns on the form for implementing this invention, Comprising: (a) showing the detail of the handle lever part is a typical side view, (b) is a typical side surface of the state which covered the bath lid main body. FIG. 4C is a schematic side view of the state where the bath lid body is opened.

The form for implementing the bath lid concerning this invention is demonstrated using FIG. FIG. 1 is a bath lid according to an embodiment of the present invention, wherein (a) is a schematic overall perspective view of the bath lid, and (b) is a schematic plan view of the bath lid. FIG. 2 is a bath lid according to an embodiment for carrying out the present invention, wherein (a) is a schematic cross-sectional view of a state where the bath lid body is opened, and (b) is a state where the bath lid body is covered. FIG. FIG. 3 is a bath lid according to an embodiment for carrying out the present invention, and (a) showing details of a vent valve portion and a seal portion is a schematic cross-sectional view of a state in which the bath lid body is open, (B) is a schematic cross-sectional view of the state at the moment of trying to open the bath lid body, and (c) is a schematic cross-sectional view of the state where the bath lid body is closed. FIG. 4 is a schematic plan view of an open / close frame, which is a bath lid according to an embodiment for carrying out the present invention. FIG. 5 is a bath lid according to an embodiment of the present invention, and (a) is a schematic side view showing details of the handle lever portion, and (b) is a state in which the bath lid body is covered. (C) is a typical side view of the state which opened the bath lid main body.

  As shown in FIGS. 1A and 1B, a bath lid 1 according to the present invention includes a bath lid main body 20, a vent valve portion 30, a bearing support 40, a bearing portion 50, and an open / close frame portion. 60, a tension spring mounting portion 70, and a tension spring 80.

  As shown in FIGS. 3 (a), (b), and (c), the bath lid body 20 is manufactured using a heat insulating material, and a resin having high elasticity on the lower surface of the outer edge, for example, a silicone resin, The sealing part 22 is given using. The seal part 22 has a substantially inverted triangular shape with a hollow cross-sectional shape, and has a thin oblique side 22-2 on the outside and a thick vertical side 22-1 on the inside. With this structure, when the bath lid body 20 is covered at a predetermined position of the bathtub 2, the thin oblique side 22-2 is deformed and closely adhered along the inner corner of the upper surface of the bathtub 2. It is possible to improve the heat insulation of the bath 2 and prevent the temperature in the bathtub 2 from decreasing. Moreover, since the thick vertical side 22-1 becomes a core when the bath lid body 20 is removed from the bathtub 2, the deformed thin hypotenuse 22-2 can be restored to the original shape.

  The bath lid body 20 is provided with a substantially inverted truncated cone-shaped vent hole 21 at two positions that are substantially symmetrical from the center point of the center line on the center line in the longitudinal direction. Since the outside air in the bathroom 90 can enter through the vent hole 21, the temperature of the hot water in the bathtub 2 gradually decreases, so that the air between the hot water and the bath lid body 20 contracts to lower the atmospheric pressure. The bath lid body 20 can be prevented from adsorbing to the bathtub 2 and not being separated. In addition, since the bath lid main body 20 uses a heat insulating material, it can contribute to temperature maintenance in the bathtub 2.

  The vent valve portion 30 includes a vent valve main body 31, a valve shaft 32, a lower stopper 33, and an upper stopper 34. The valve shaft 32 is a valve shaft guide hole of the vent valve support portion 66 of the opening / closing frame 60. The lower stopper 33 having a diameter larger than the diameter of the lower end of the vent hole 21 is fitted to the lower end, and the vent 2 of the bath lid body 20 is fitted directly above the lower stopper 33 to seal the inside of the bathtub 2. A substantially inverted frustoconical vent valve main body 31 that can be stopped, and an upper stopper 34 having a diameter larger than the diameter of the valve shaft guide hole 64 are fixed to the upper end portion. Normally, the valve shaft 32 is used as the headed valve shafts 32 and 34 integrally with the upper stopper 34. The vent valve body 31 is preferably made of synthetic resin and rubber, and the valve shaft 32, the lower stopper 33 and the upper stopper 34 are preferably made of synthetic resin and metal.

  As shown in FIG. 3C, if the bath lid body 20 is covered with the bathtub 2, the vent valve body 31 is made of synthetic resin or rubber so that it can be tightly sealed to the vent hole 21 by its own weight. . At this time, since the tension spring 80 pulls the open / close frame 60 downward, the vent valve main body 31 can be further pressed downward by the vent valve support portion 66. Therefore, since the entire bath lid body 20 is pressed downward by the vent valve body 31, the restoring force accompanying the deformation of the seal portion 22 described above suppresses the force with which the bath lid body 20 tries to float up, The main body 20 can be brought into close contact with the bathtub 2.

  When the temperature of the hot water in the bathtub 2 is gradually lowered, the temperature of the air between the bathtub 2, the bath lid body 20 and the hot water in the bathtub 2 is also lower than when the bath lid body 20 is covered. Since the air contracts thereby, the pressure of the air is lower than the pressure outside the bathtub 2, and the bath lid body 20 is in close contact with the bathtub 2 and difficult to leave because the seal portion 22 is provided. However, as shown in FIG. 3 (b), the bath lid 1 of the present application grips the opening / closing frame and opens the bath lid 2, the vent valve support portion 66 of the opening / closing frame 60 moves upward, Accordingly, the upper stopper 34 abutting on the upper end of the vent valve support 66 moves upward, the valve shaft 32 fixed to the upper stopper 34, and the vent valve main body fixed to the valve shaft 32. 31, The lower stopper 33 moves upward. At this time, there is a gap between the vent hole 21 and the vent valve body 31 that are in close contact, and the air in the bathroom 90 enters the bathtub 2 through the vent hole 21, so that the atmospheric pressure is in an equilibrium state. The bath lid body 20 can be opened without difficulty. Then, as shown in FIG. 3A, the lower stopper 33 is hooked on the lower surface of the vent hole 21. Therefore, when the opening / closing frame 60 is moved upward, the bath lid body 20 opens and is stored on the bathroom side wall 91 side. . At this time, as shown in FIGS. 2A and 2B, if a protrusion is provided on the upper surface of the lower stopper 33, the vent hole 21 is always open when the open / close frame 60 is raised. can do.

  As shown in FIG. 4, the open / close frame 60 includes at least two leg frames 61, a center frame 62, and a handle frame 63. The leg frame 61 has one end fixed to the bearing portion 50. The other end is fixed to the center frame 62, and the center frame 62 is provided in a substantially perpendicular direction to the leg frame 61 and the handle frame 63, and the handle frame 63 is disposed near the center of the center frame 62. The frame 61 is fixed in the opposite direction. With the handle frame 63, the opening and closing of the bath lid 1 is operated. A vent valve support portion 66 at two intersections of the leg frame 61 and the center frame 62 has a valve shaft guide hole 64. The valve shaft 32 is loosely fitted to the vent valve portion 30, The bath lid body 20 is supported through the pores 21. Since the two vent holes 21 serve as the center of gravity of the bath lid main body 20, if the lid is operated by operating the handle frame 63, the bath lid main body 20 is in a normal position without being distorted in the bathtub 2. The lid can be securely attached. In addition, when using for a circular bath, the vent hole 21 and the vent valve part 30 should just be one place in the center of the circular bath lid main body 20. FIG. The opening / closing frame 60 is preferably made of a synthetic resin or a metal such as aluminum.

  As shown in FIGS. 2 (a) and 2 (b), the bearing support 40 is approximately the same height at the upper surface of the outer edge of the bathtub 2 on the side in contact with the side wall 91 of the bathroom 90 or outside the outer edge. The bottom of the bearing support 40 is fixed in the bathroom. The bearing part cradle 40 has one end of the bearing part 50 fixed to the top, and has a predetermined height. Further, the tension spring mounting portion 70 is provided at a position lower than the bearing portion 50 on the outside of the bearing portion receiving base 40. The bearing portion 50 rotates only from the bathtub 2 side to approximately vertically upward. The bearing support 40, the bearing 50, and the tension spring mounting portion 70 are preferably made of synthetic resin or metal, and the bearing holder 40 has a predetermined height of 5 to 15 cm, and a tension spring. The height of the attachment portion 70 is preferably 1 to 5 cm.

  The tension spring 80 has one end fixed to the tension spring mounting portion 70 and the other end fixed to the open / close frame 60. Among the open / close frames 60, fixing to the center frame 62 is preferable from the balance of the action of force. As shown in FIG. 2 (b), when the bath lid body 20 is covered with the bathtub 2, it is approximately horizontal from the bearing portion 50 at the top of the bearing portion receiving base 40 having a predetermined height, and The tension spring 80 is pulled from the center frame 62 on the center line of the bath lid main body 20 toward the tension spring mounting portion 70 at an obliquely downward angle β °. Therefore, the open / close frame 60 is pulled downward by the vertical component force, and the vent valve support portion 66 presses the vent valve main body 31 from above, and the vent valve main body 31 presses the bath lid main body 20. Therefore, since the seal part 22 of the bath lid body 20 is strongly pressed and brought into close contact with the bathtub 2, it is possible to prevent the temperature of the hot water in the bathtub 2 from being lowered. For example, when the weight of the bath lid body 20 is light, the angle β ° is increased by increasing the height of the bearing receiving base 40, thereby increasing the vertical downward component force of the tension spring 80. The bath lid body 20 and the bathtub 2 can be brought into close contact with each other by increasing the force for pressing the bath lid body 20 against the bathtub 2. The tension spring 80 is preferably made of a metal such as stainless steel.

  Further, as shown in FIG. 2A, when the bath lid body 20 is removed from the bathtub 2 and stored in the side wall 91, the center in a substantially vertical direction from the bearing portion 50 at the top of the bearing portion receiving base 40. The frame 62 is pulled by the tension spring 80 toward the tension spring mounting portion 70 at an angle α ° from the vertical to the outside. Since it is pulled outside by the horizontal component force, the bath lid body 20 does not fall to the bathtub 2 side. Moreover, since the bearing part 50 does not rotate to the side wall 91 side from substantially vertically upward, the bath lid main body 20 does not fall down to the side wall 91 side. Therefore, the bath lid body 20 can be stably stored on the side wall 91 side. Therefore, if the bath lid 1 of the present invention is used, the bath lid body 20 does not fall down on either the bathtub 2 side or the side wall 91 side, so that bathing can be performed with peace of mind.

  As shown in FIGS. 5A, 5 </ b> B, and 5 </ b> C, a handle lever portion 65 that rotates in the same direction as the opening / closing frame 60 can be provided at the distal end portion of the handle frame 63. The handle lever portion 65 has a concave shape in the outward direction and a side wall side arm 65-1 having a side wall side wheel 65-2 at the front end portion on the side wall side, and has a substantially arc shape that is concave in the inward direction. It is comprised from the bathtub side arm 65-3 which provided the bathtub side wheel 65-4 in the front-end | tip part of a side, and a handle lever part hinge, and the side wall side arm 65-1 and the bathtub side arm 65-3 are united. ing. The handle frame portion 65 is also preferably made of a synthetic resin or a metal such as aluminum.

  As shown in FIG.5 (b), when covering the bath lid main body 20, the bathtub side wheel 65-4 is hooked and fixed to the bathtub convex part 2-1. When the bath lid body 20 is stored, the side wall wheel 65-2 is hooked on the side wall recess 92 and fixed. When releasing the fixation, the fixation is released by pushing or pulling the arms 65-1, 65-3 on the opposite side of the hooked wheels 65-2, 65-4.

  If the side wall for storing the bath lid body 20 is planarly held in a concave shape and the side wall recess 91-1 is provided, the appearance of the bath lid body 20 when stored and the fit of the bath lid body 20 are improved. .

  An example of the usage method of the bath lid 1 which concerns on this invention is shown. When the handle frame 63 is gripped and lowered, the bath lid body 20 covers the bathtub 2 through the vent hole 21 through the valve shaft guide hole 64 and the vent valve portion 30. At this time, the bath lid body 20 is supported by the two vent holes 21 located at the center of gravity, so that the bath lid body 20 can be placed in a predetermined position. If the bath lid body 20 is covered, the vent valve body 31 can reliably seal the vent hole 21 by its own weight. In addition, as described above, the bath lid body 20 is pressed from above through the vent valve body 31 from the open / close frame 60 by the vertically downward component of the tensile force of the tension spring 80, so that the seal portion 22 is in the bathtub 2. In addition, the temperature of the hot water in the bathtub 2 can be maintained in combination with the fact that the bath lid main body 20 uses a heat insulating material.

  When the handle frame 63 is lifted, first, the vent valve body 31 is raised in conjunction with the opening / closing frame 60, and a gap is formed in the vent hole 21. Therefore, as the temperature of the hot water in the sealed bathtub 2 decreases, the air in the bathtub 2 contracts, and the bath lid body 20 sticks to the bathtub 2 due to the decrease in the atmospheric pressure in the bathtub 2. It can be prevented from disappearing. Further, when the handle frame 63 is held and α> β = 0 ° is passed and α> 0 °, the upward force of the tension spring 80 opens the bath lid body 20 without applying extra force. be able to. The bearing 50 is pulled by the outward component of the tensile force of the tension spring 80 in combination with the fact that the bearing 50 can only move substantially vertically upward, so that the bath lid body 20 does not fall down. .

  As a bath lid, it can be widely used not only for home use.

1: Bath lid 2: Bathtub 2-1: Bathtub convex part 20: Bath lid body 21: Vent hole 22: Seal part 22-1: Seal vertical wall part 22-2: Seal oblique side part 30: Ventilation valve part 31: Ventilation Valve body 32: Valve shaft 33: Lower stopper 34: Upper stopper
40: Bearing support 50: Bearing 60: Opening / closing frame 61: Leg frame 62: Center frame 63: Handle frame 64: Valve shaft guide hole
65: Handle lever part 65-1: Side wall arm 65-2: Side wall wheel 65-3: Bathtub side arm 65-4: Bathtub side wheel
65-5: Handle lever part hinge 66: Ventilation valve support part 70: Tension spring mounting part 80: Tension spring 90: Bathroom 91: Bathroom side wall recess 91-1: Side wall recess
92: Ceiling convex part α: Angle formed by the opening / closing frame and the tension spring β: Angle formed by the opening / closing frame and the tension spring

Claims (6)

  A seal part that is in close contact with the upper edge of the bathtub at the peripheral edge of a single bath lid, an opening / closing frame part having a bearing part in the vicinity of the upper edge of the bathtub that opens and closes by rotating the bath lid substantially at right angles, and a bath lid A vent valve portion comprising a single or a plurality of inverted conical vent valves that are connected to the open / close frame portion to support the bath lid and allow the inside of the bathtub to be ventilated. A sealed bath lid characterized by that.   A bath lid body that is used as a single piece, has a seal portion for sealing the bathtub on the lower surface of the peripheral edge portion, and has one or a plurality of inverted frustoconical vent holes in the longitudinal direction from the lid center; It is supported by a vent valve part that opens and closes the vent hole and two bearing parts fixed to the upper surface of the outer edge of the bathtub on the side wall side of the bathroom or in the vicinity thereof, and rotates about 90 degrees from horizontal to vertical. And an opening / closing frame portion in which a vent valve support portion is fixed in the middle portion, and two tension springs provided between a spring mounting portion in the vicinity of the bearing portion and an intermediate portion of the opening / closing frame portion, The cross-sectional shape of the seal portion is a substantially inverted triangular shape having a hypotenuse that is hollow and in contact with the inner edge of the bathtub, and each of the open / close frame portions has one end on the bearing portion. Was extended in the transverse direction A single leg frame and a single center frame fixed in the longitudinal direction so as to be substantially orthogonal to the two leg frames, and one or a plurality of the vent valve support portions fixed in the intermediate portion And a single handle frame fixed so as to be substantially orthogonal to the center portion of the center frame, and the vent valve portion is a substantially inverted cone for opening and closing the vent hole by vertically moving. A trapezoidal vent valve main body, a valve shaft connected to the vent valve main body and having an upper portion loosely fitted in the valve shaft guide hole of the vent valve support portion, and a lower diameter of the vent hole provided at the lower end of the valve shaft And a large disk-shaped lower stopper, and in a state where the bath lid body is covered, the vent valve body presses and seals the vent hole in conjunction with the opening and closing frame, and the opening and closing frame When opening the bath lid body, the vent valve body After elevated the vent hole and vent open, closed bath lid the lower stopper, characterized in that the mentioned pressing the bath lid body and To設 the vent.   The hermetic bath lid according to claim 2, wherein the vent valve support portion is provided at an intersection of the leg frame and the center frame.   The tension spring is stretched between the spring mounting portion and the spring mounting portion of the center frame, and the tension angle of the tension spring with respect to the leg frame is downward while the bath lid is covered. The hermetic bath lid according to claim 2 or 3, wherein the tension spring is disposed so as to face upward when the door is opened. The hermetic bath lid according to claim 1, wherein a concave portion is provided on a side wall of the bathtub to accommodate the bath lid body. A side wall arm having a substantially concave protrusion on the front end of the handle frame and a side wheel on the front side of the protrusion on the front end, and a substantially arc concave on the inner side. A bathtub-side arm having a bathtub-side wheel at the tip thereof is a single horizontal bar, and the horizontal bar and the handle frame are substantially T-shaped. A handle lever portion provided with a hinge rotatably at a T-shaped intersection, and a downward ceiling convex portion that fits into a substantially concave shape of the side wall arm on the ceiling of the concave portion of the side wall; The hermetic bath lid according to claim 5, further comprising an outwardly facing bathtub convex portion that hooks a bathtub-side wheel of the bathtub-side arm on a side surface of the bathtub.

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