JP3868437B2 - Bath lid - Google Patents

Description

  The present invention relates to a bath lid.

As a conventional bath lid, a plurality of vinyl chloride resin cylindrical bodies are connected in the width direction to form a plate, and the back surface is formed flat (see, for example, Patent Document 1). .
JP-A-10-5143

  The vinyl chloride resin has a thermal conductivity of about 0.151 [W / m · k], which is relatively high among the resins. Therefore, when this bath lid made of vinyl chloride resin is used as a lid on a bathtub in which hot water is stored, the heat of the hot water in the bathtub tends to be released to the outside through the bath lid. It is difficult to keep the temperature down.

  Therefore, the present invention has a large heat insulation ability by having a material with low thermal conductivity, makes it difficult for the heat of hot water stored in the bathtub to escape to the outside, and keeps the hot water uncooled for a long time. The purpose is to provide a bath lid.

In order to achieve the above object, a bath lid according to the present invention is provided along two resin outer plate materials arranged in parallel to face each other and along the peripheral edge of the two outer plate materials. a resin or elastomeric edge covering member is provided with a polyurethane foam filled solidified foam is injected into the said end edge covering member and the space formed by the two of the outer sheet, further A window portion for injecting the foamed polyurethane resin solution at a middle position of the upper outer plate material, and a resin closing plate that is attached to close the window portion and has a gripping portion. It is.

Further, the bath lid according to the present invention is made of two resin outer plates arranged in parallel opposite to each other, and made of resin or elastomer arranged along the peripheral edge of the two outer plates. An edge covering member, and a foamed polyurethane that is injected into a space formed by the edge covering member and the two outer plate members and foamed and solidified, and the upper outer plate member A window portion for injecting the resin liquid for the foamed polyurethane is provided at an intermediate position, and a resin closing plate that is attached so as to close the window portion and has a gripping portion. Furthermore, a vacuum heat insulating material is built in the space .

The present invention has the following remarkable effects.
Since the bath lid has the polyurethane foam U having low thermal conductivity, the bath lid can be provided with an excellent heat insulation ability, and the heat of the hot water stored in the bathtub is difficult to escape to the outside of the bathtub, It is kept without cooling for a long time.
In particular, the weight can be significantly reduced as compared with a bath lid made of another material or structure having the same heat insulating effect. Moreover, it is lightweight and has sufficient strength and rigidity and is robust. Then, the window portion 10 can be quickly closed to prevent the resin liquid from leaking out. In addition, since the closing plate 6 for closing also serves as the grip portion 11, the appearance can be made simple.

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
As shown in FIGS. 1, 2 and 4, the bath lid according to the present invention includes two resin outer plate members 3 and 3 and two outer plate members 3 and 3 which are arranged in parallel to face each other. Are injected into the space 4 formed by the resin- or elastomer-made edge covering member 2 disposed along the peripheral edges 30, 30, and the edge covering member 2 and the two outer plate members 3, 3. And foamed polyurethane U filled and solidified.
Here, the thermal conductivity of polystyrene foam and phenol foam is about 0.037 [W / m · k], whereas the thermal conductivity of polyurethane foam U is about 0.023 [W / m · k]. Low thermal conductivity and great heat insulation effect.
As the foaming agent, non-fluorocarbon cyclopentane or the like that is not harmful to the environment is preferably used.

The outer plate material (face material) 3 is made of, for example, a synthetic resin such as vinyl chloride resin, ABS resin, polyethylene, polypropylene, or polystyrene.
Further, the outer plate member 3 disposed on the upper side of the two sheets is a window (with an inner diameter of about 5 to 10 cm) for injecting a resin liquid for the polyurethane foam U (as will be described later) into an intermediate position therebetween. Part 10 is formed (see FIG. 3).

The edge covering member (edge material) 2 is made of an elastomer such as resin or polyolefin, and a concave groove 7 for inserting the peripheral edge 30 of the outer plate material 3 is formed in each of the upper and lower edge portions 20 and 20. A pair of insertion projecting piece portions 8A and 8B projectingly project.
In other words, the edge covering member 2 is provided integrally with each of the long strip-like vertical wall portion 21 and the upper and lower edge portions 20 and 20 of the vertical wall portion 21, and the peripheral edges of the outer plate members 3 and 3. And the insertion portions 8 and 8 that form the concave grooves 7 and 7 into which the edges 30 and 30 are inserted. The insertion portion 8 includes a pair of insertion protrusions 8A and 8B.
Further, the inner protruding piece 8A of the insertion portion 8 has a locking piece 9 protruding from the inner surface of the vertical wall portion 21 with a predetermined distance. And the dovetail groove | channel 12 is formed inside the vertical wall part 21 by a pair of latching piece parts 9 and 9 protrudingly provided by the upper and lower insertion parts 8 and 8. FIG.

Further, the insertion portion 8 of the edge covering member 2 is formed by cutting a cut portion 22 at a right angle into the middle portion of the insert portion 8 (FIGS. 5 and 6). And FIG. 7).
Then, the edge covering member 2 is bent at a right angle at the notch 22 to form a corner 23, and is attached corresponding to the right-angled corner of the outer plate 3.

As shown in FIGS. 1 and 4, a resin closing plate 6 is attached to the window portion 10 provided in the upper outer plate member 3 immediately after injecting the resin liquid for the foamed polyurethane U.
Specifically, the closing plate 6 has a closing projection 18 that is closely inserted into the window portion 10 on the lower surface, and an opening-shaped gripping portion 11 that can be inserted and removed from the upper surface. . Although not shown, instead of the grip portion 11, a handle for gripping with a hand may be attached to the upper surface of the closing plate 6.

FIG. 8 shows a method and a method for manufacturing a bath lid by injecting a resin for polyurethane foam U into the hollow lid 1 while conveying the hollow lid 1 (described later) by an (endless) conveyor device 13. Indicates the device.
In the illustrated example, the conveyor device 13 has an annular conveying portion 13A, and on the conveying portion 13A, has a lower plate 15 on which the hollow lid 1 is placed and an upper plate 16 that is opened and closed by a hinge. The jigs 14 are arranged at a predetermined interval.
A foam solidification firing furnace 17 is provided in the middle of the annular conveying portion 13A of the conveyor device 13, and a resin liquid supply nozzle 5 is disposed above the middle portion of the conveying portion 13A.

Further, as shown in FIGS. 9, 10, 11, 12 and 13, a flat vacuum heat insulating material 25 may be built in the space 4.
In the bath lid shown in FIGS. 9 and 10, the vacuum heat insulating material 25 is disposed at a predetermined distance from the inner peripheral surface of the edge covering member 2 and close to both inner surfaces of the upper and lower outer plate materials 3 and 3. ing. The window portion 10 is provided at a position corresponding to the space portion so that the resin liquid for the polyurethane foam U can be injected into the space 4 other than the vacuum heat insulating material 25 from the window portion 10.

Further, in the bath lid shown in FIG. 11, the vacuum heat insulating material 25 is arranged at a predetermined distance from the inner peripheral surface of the edge covering member 2 and only the back surface side is disposed close to the inner surface of the lower outer plate material 3. It is installed. In this case, the window portion 10 may be disposed at an intermediate position of the upper outer plate material 3.
Further, the bath lid shown in FIG. 12 has two rectangular vacuum heat insulating materials 25, 25 arranged at a predetermined interval. The vacuum heat insulating material 25 is disposed so that both surfaces thereof are close to the inner surfaces of the upper and lower outer plate materials 3 and 3 (see FIG. 10), or only the rear surface is disposed on the inner surface of the lower outer plate material 3. They are arranged close to each other (see FIG. 11).
FIG. 13 shows an example of the vacuum heat insulating material 25, in which a flat heat insulating material 27 such as glass wool or foamed polyurethane is built in an aluminum bag 26, and the air in the aluminum bag 26 is removed.
Although not shown in the figure, the vacuum heat insulating material 25 is disposed so that only the back surface is brought close to the inner surface of the lower outer plate member 3 and its outer peripheral portion is brought close to the inner peripheral surface of the edge covering member 2. May be.

Next, a method for manufacturing a bath lid will be described.
First, a long strip-shaped edge covering member 2 is attached to two outer plate members 3 and 3 arranged in parallel at a predetermined interval, and a space 4 (for injecting a resin liquid for polyurethane foam U). A hollow lid body 1 having the structure is formed (see FIG. 3).
At this time, the edge covering member 2 is bent at a right angle at the corner portion 23 and attached to the outer plate materials 3 and 3, and the both end portions 2a and 2a are formed into straight portions (other than the corner portion 23 and the curved bent portion). Then, heat-weld or bond using a solvent / adhesive. Thereby, the connection part of the both end parts 2a and 2a is not arrange | positioned in the right-angled corner | angular part 23 or the curved bending part, but is excellent in durability.
Then, as shown in FIG. 8, the hollow lid 1 is placed on the lower plate 15 of each holding jig 14, transported with the upper plate 16 closed, and transported to the front of the nozzle 5. Let the board 16 open.

When the holding jig 14 is conveyed to a position below the nozzle 5, the nozzle 5 descends in the vicinity of the hollow lid body 1, and the resin liquid for the polyurethane foam U is passed through the window portion 10 to form the hollow lid body. 1 is injected into the space 4.
The injected resin liquid is foamed and filled in the space 4 and the dovetail groove 12 (see FIGS. 2 and 4), and is sufficiently solidified (integrated) by heating in the firing furnace 17, and the outer plate material 3. Adhere strongly to the edge covering member 2 and the closing plate 6. Even if the dovetail groove 12 is omitted, the foamed polyurethane U is bonded and solidified on the inner surface of the outer plate 3 and can be integrated as a whole.
In this way, the polyurethane foam U securely bonds and integrates the outer plate material 3, the edge covering member 2 and the closing plate 6.

Immediately after the injection, the closing plate 6 is attached to the window portion 10 and the upper plate 16 is closed and held.
If a recess is formed on the lower surface of the upper plate 16 at a position corresponding to the closing plate 6, the outer plate 3 can be closed tightly when the upper plate 16 is closed.
Then, the next hollow lid 1 is conveyed below the nozzle 5, and a resin liquid is injected from the nozzle 5.
The bath lid in which the resin liquid is injected and the closing plate 6 is attached is solidified in the baking furnace 17 while being pressed and held by the upper plate 16, and then the upper plate 16 is opened and taken out.

As described above, the bath lid according to the present invention is provided on the two resin outer plate members 3 and 3 disposed in parallel to each other and the peripheral edges 30 and 30 of the two outer plate members 3 and 3. It was injected into the space 4 formed by the resin- or elastomer-made edge covering member 2 disposed along the edge covering member 2 and the two outer plate members 3, 3, and was foamed and solidified. A polyurethane foam U, and a window portion 10 for injecting a resin liquid for the foamed polyurethane U into an intermediate position of the upper outer plate member 3; a window portion 10 that is attached so as to close the window portion 10; Therefore, the bath lid has a large heat insulating effect by the foamed polyurethane U having a low thermal conductivity and the resin outer plate materials 3 and 3 (not metal).
Therefore, the heat of the hot water stored in the bathtub is difficult to escape to the outside of the bathtub, and the temperature of the hot water is maintained without being cooled for a long time.
In particular, the weight can be significantly reduced as compared with a bath lid made of another material or structure having the same heat insulating effect. Moreover, while being lightweight, it has sufficient strength and rigidity and is robust.
In addition, the window portion 10 can be quickly closed to prevent the resin liquid from leaking out. In addition, since the closing plate 6 for closing also serves as the grip portion 11, the appearance can be made simple.

Further, the bath lid according to the present invention is arranged along two resin outer plate materials 3 and 3 which are arranged in parallel to face each other, and peripheral edges 30 and 30 of the two outer plate materials 3 and 3. A foamed polyurethane U which is injected into a space 4 formed by the resin-made or elastomer-made edge covering member 2 and the edge covering member 2 and the two outer plate materials 3, 3 and is filled and solidified by foaming. And a window portion 10 for injecting a resin liquid for the polyurethane foam U into an intermediate position of the upper outer plate member 3, and a resin that is attached so as to close the window portion 10 and has a grip portion 11 Since the vacuum sealing material 25 is built in the space 4 and the sealing plate 6 is provided, the bath lid is formed by the foamed polyurethane U having a low thermal conductivity and the resin outer plate materials 3 and 3 (not metal). However, it has a large heat insulating effect.
Therefore, the heat of the hot water stored in the bathtub is difficult to escape to the outside of the bathtub, and the temperature of the hot water is maintained without being cooled for a long time.
In particular, the weight can be significantly reduced as compared with a bath lid made of another material or structure having the same heat insulating effect. Moreover, while being lightweight, it has sufficient strength and rigidity and is robust.
In addition, the window portion 10 can be quickly closed to prevent the resin liquid from leaking out. In addition, since the closing plate 6 for closing also serves as the grip portion 11, the appearance can be made simple. In addition, since the vacuum heat insulating material 25 is built in the space 4, the heat insulating effect can be increased, and the bath lid can be further reduced in weight and thickness.

It is a perspective view showing a 1st embodiment of a bath lid concerning the present invention. It is a principal part expanded sectional side view. It is a principal part sectional side view. It is a principal part sectional side view. It is a principal part expanded sectional side view which shows the corner | angular part of an edge covering member. It is a principal part top view for description. It is a principal part top view for description. It is an explanatory perspective view which shows a manufacturing method. It is a top view which shows 2nd Embodiment of the bath lid concerning this invention. It is a principal part expanded sectional side view. It is a principal part expanded sectional side view . It is a top view which shows 3rd Embodiment of the bath lid concerning this invention. It is a cross-sectional side view which shows a vacuum heat insulating material.

Explanation of symbols

2 Edge covering member 3 Outer plate material 4 Space 6 Closing plate
10 windows
11 Holding part
25 Vacuum insulation
30 Perimeter edge U Polyurethane foam

Claims (2)

Two resin outer plates (3) (3) arranged in parallel and opposite to each other, and arranged along the peripheral edges (30) (30) of the two outer plates (3) (3) It is injected into the space (4) formed by the resin-made or elastomer-made edge covering member (2), the edge covering member (2), and the two outer plate materials (3) (3). Foamed polyurethane (U) filled and solidified by foaming ,
In addition, a window portion (10) for injecting the resin liquid for the polyurethane foam (U) is attached to an intermediate position of the upper outer plate material (3), and the window portion (10) is closed. A bath lid comprising a resin closing plate (6) having a gripping part (11) . Two resin outer plates (3) (3) arranged in parallel and opposite to each other, and arranged along the peripheral edges (30) (30) of the two outer plates (3) (3) It is injected into the space (4) formed by the resin-made or elastomer-made edge covering member (2), the edge covering member (2), and the two outer plate materials (3) (3). Foamed polyurethane (U) filled and solidified by foaming,
In addition, a window portion (10) for injecting the resin liquid for the polyurethane foam (U) is attached to an intermediate position of the upper outer plate material (3), and the window portion (10) is closed. A resin closing plate (6) having a gripping part (11),
Furthermore, the bath cap characterized by the vacuum heat insulating material (25) being incorporated in the said space (4) .

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