JP2005232785A - Constituent member of unit bathroom, mold for molding constituent member of unit bathroom and molding method of constituent member of unit bathroom - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent leakage of water by integrally forming a sealing section into the end face of a connecting section of a constituent member of a unit bathroom and assembling constituent members. <P>SOLUTION: The constituent member of the unit bathroom is a constituent member for forming the ceiling section (10) and a side wall section (20) of the bathroom (1), comprises constituent member section bodies (13, 14, 23 and 24) formed into a predetermined shape of a thermoplastic resin material and sealing sections (15, 16, 17, 25 and 26) consisting of elastically deformable elastomer integrally formed in the end face of the connecting section of the constituent member bodies, and the constituent member section body is connected to the other constituent member section body to have waterproofing property and water-tightness. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to constituent members such as a ceiling part and a side wall part for constituting a unit bathroom, and more specifically, the ceiling part and the side wall part are divided by a plurality of constituent members, and the divided constituent members are provided. The present invention relates to a component member in which a seal portion is integrally formed with the joint portion, a molding die for the component member, and a method for molding the component member.

  In recent unit-type bathrooms, a molded product is formed in units of bathrooms, and is disassembled into several members, that is, a ceiling, a side wall, a floor, etc. in relation to facilitate handling, and each is individually molded. And several components are assembled and integrated as a bathroom. At this time, in order to improve the waterproofness and water tightness of the seam portion, it is general to sandwich packing materials, sealing members, etc., fill with sealing materials, or apply and assemble them.

  On the other hand, when renovating a used house, the bathroom of a used house is often remodeled into a unit-type bathroom. In that case, it is necessary to bring in the components constituting the unit bathroom from the entrance and exit of the second-hand house and the entrance and exit of the bathroom. For this reason, there is a demand for a component having a size that can be carried from the doorway. For example, it is necessary to divide the member constituting the ceiling part and the member constituting the side wall part into a plurality of parts.

The unit bathroom uses water, hot water, etc. indoors, so when assembling each component so that there is no water leakage outside the bathroom during use, the bonding surface must be packed with a packing material and seal member. It is necessary to make it watertight. However, the constituent members constituting the conventional unit type bathroom are often manufactured by molding a synthetic resin. However, the constituent members molded with the synthetic resin do not have a sealing property and a water tightness. Accordingly, there has been a method in which an adhesive seal member, sealing material, or the like is individually filled or applied during assembly (for example, Patent Document 1). In addition, there has been a method in which a sealing member, a packing material, or the like is sandwiched between constituent members (for example, Patent Document 2). Furthermore, there existed what provided the joint material which has a soft part between panels (for example, patent document 3).
Japanese Utility Model Publication No. 6-8624. Japanese Patent Application Laid-Open No. 11-303432. Japanese Utility Model Publication No. 6-44982.

  However, the work of assembling the components of the unit bathroom is often performed in a high place, in a narrow, dark space. That is, this assembling work is performed in a situation and place where it is difficult to work. Renovation of used houses was much worse. The structural member is divided into a ceiling part, a side wall part and the like. This is assembled and integrated, but the problem is prevention of water leakage at the joint. In the conventional assembly work in which water leakage prevention treatment (sealing treatment) is performed while assembling, an operator who forgets to pinch the seal member or the like or cannot uniformly apply a sealing material etc. There was a risk of human error and work error.

  In addition, even if each current component is divided, in order to reduce the number of sealing processes and assembly operations, it is rather a large member, so water leakage prevention work at the joint is performed. Performing completely manually is not reliable, and maintenance after assembly is also a problem. Also, the assembly workability was not good, and the working time could not be shortened. For this reason, a seal part is integrally formed on the coupling surface of each component member, and the operator needs to develop a component member that can completely perform the water leakage prevention process (seal process) if it is simply assembled. It had been. However, the above-described technique cannot solve this problem.

  This proposal has been made to solve the above-described problems and achieves the following object. The objective of this invention is providing the structural member of the bathroom which integrally formed the seal part in the end surface of the coupling | bond part of each structural member which comprises a bathroom. Another object of the present invention is to provide a molding die for a bathroom component member and a molding method for the component member, which can efficiently mold a bathroom component member in which a seal portion is integrally formed.

  The component member of the unit type bathroom of the first aspect of the present invention is a component member for configuring the unit type bathroom, and the component part main body molded into a predetermined shape with a thermoplastic resin material, and the component part main body When the seal part which is integrally formed on the end face of the joint part and is pressed and elastically deforms and has watertightness, and the joint part of the constituent part body and the joint part of the other constituent part body are joined, It is characterized in that water leakage can be prevented due to the watertight state between the joints.

  The constituent member of the unit type bathroom of the present invention 2 is characterized in that, in the present invention 1, the seal portion is formed of an elastomer that exhibits thermoplasticity when heated to a predetermined temperature and is elastically deformable at room temperature. It is said.

  The constituent member of the unit type bathroom according to the third aspect of the present invention is characterized in that, in the first or second aspect of the present invention, the component main body is a ceiling main body divided into a plurality of parts in order to form a ceiling.

  The constituent member of the unit-type bathroom of the present invention 4 is characterized in that, in the present invention 1 or 2, the component main body is a side wall main body divided into a plurality of parts in order to form a side wall.

  The molding die of the constituent member of the unit type bathroom of the present invention 5 is a fixed die, a movable die that is movable relative to the fixed die, and between the fixed die and the movable die. A primary cavity for molding the component main body formed on the first mold, a first gate provided in the fixed mold for injecting thermoplastic resin into the primary cavity, and slidably provided in the movable mold. Slide mold, a secondary cavity formed in the movable mold by sliding the slide mold, and a second gate for injecting elastically deformable elastomer into the secondary cavity. The elastomer is thermally fused to the end surface of the coupling portion of the component main body, and the seal portion made of the elastomer is integrally formed on the component main body.

  In the method for molding the constituent members of the unit type bathroom of the present invention 6, a primary cavity for molding the component main body is formed between the fixed mold and the movable mold, and a thermoplastic resin is injected into the primary cavity. Then, after the injected thermoplastic resin is solidified, a secondary cavity for forming a seal part made of elastomer is formed on the joint part of the component part body through a slide mold that can slide on the movable mold. Then, the elastomer is injected into the secondary cavity, the elastomer is thermally fused to the end surface of the coupling portion of the component main body, and the seal portion made of the elastomer is integrally formed at the coupling portion of the component main body. It is characterized by that.

  Since the seal portion is integrally formed on the end surface of the coupling portion of the constituent members constituting the bathroom, the worker only has to assemble each constituent member, and the workability of the assembly work is improved. Moreover, the prevention of water leakage was completed simply by assembling each component member, and the occurrence of water leakage due to an operator's work mistake or the like could be prevented.

  Even if each component is divided into sizes that are easy to carry and the number of joints increases, the seals are integrally formed on the end faces of the joints of each component, so there is no water leakage and assembly Work is also easy. Therefore, it was possible to make each component easy to carry. That is, even when remodeling a unit bathroom in a second-hand house, carrying work, assembly work, etc. are very easy. In addition, since the seal part is integrally formed on the end face of the coupling part of the component members, when assembling, the work of sandwiching the packing material, the seal member, etc., the work of filling the sealing material, etc. are unnecessary, and the assembly workability is improved. The working time was also shortened.

  In addition, each component is molded by a so-called two-color molding method with a component molding die composed of a fixed die, a movable die, and a slide die. Production efficiency has improved.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view showing an outline of a unit bathroom (hereinafter referred to as a bathroom) of the present invention. 2-5 is explanatory drawing for demonstrating the method of integrally forming a seal part in the end surface of the coupling | bond part of the structural member of the bathroom of this invention. FIG. 6 is an enlarged view of a portion B in FIG. 1 and shows a fixing means for connecting and fixing the connecting portion of the constituent member and the connecting portion of another constituent member. FIG. 7 is a view showing another embodiment of a fixing means for coupling and fixing a coupling portion of a component member and a coupling portion of another component member. FIG. 8 is a view showing still another embodiment of a fixing means for coupling and fixing a coupling portion of a component member and a coupling portion of another component member. 9 to 11 are views showing another embodiment of a seal portion integrally formed with the coupling portion of the component members. 2 to 5 are schematic diagrams for easy understanding.

  In FIG. 1, the bathroom 1 includes a ceiling part 10, a side wall part 20, a bottom part 30, and the like. In addition, the side wall part 20 is comprised so that the bathroom 1 may be surrounded from four directions. The bottom portion 30 includes a first bottom member 31 and a second bottom member 32. The first bottom member 31 is also called a waterproof pan or the like, and forms a washing place. The second bottom member 32 constitutes a bathtub mounting portion, and a bathtub (unit bath) 40 is installed on the second bottom member 32. An apron 45 is provided between the bathtub 40 and the second bottom member 32 so that water or hot water on the first bottom member 31 side which is a washing place does not flow into the second bottom member 32 side. Yes. A seal portion 33 is integrally formed on the end surface of the coupling portion of the first bottom member 31. Therefore, when the coupling portion of the first bottom member 31 and the coupling portion of the second bottom member 32 are coupled and fixed by a fixing means (not shown), the seal portion 33 is an end surface of the coupling portion of the second bottom member 32. Adheres to water and is waterproof and watertight.

  The ceiling part 10 is composed of a first ceiling member 11 and a second ceiling member 12. The first ceiling member 11 includes a first ceiling portion main body 13 and seal portions 16 and 17, and the end portions of the coupling portions 13a and 13b of the first ceiling portion main body 13 are respectively provided with a seal portion 17 and a seal portion. 16 is integrally molded. The second ceiling member 12 includes a second ceiling portion main body 14 and a seal portion 15, and the seal portion 15 is integrally formed on the end surface of the coupling portion 14 a of the second ceiling portion main body 14. In addition, it is preferable that this 1st ceiling part main body 13 and the 2nd ceiling part main body 14 are shape | molded with thermoplastic resin (this embodiment ABS resin). Moreover, it is preferable that the seal parts 15, 16, and 17 are formed of an elastomer. An inspection port 18 is provided on the ceiling 10. The inspection port 18 includes an opening (not shown) and a lid member that seals the opening so as to be opened and closed. The inspection port 18 is for performing assembly work of the ceiling part 10, maintenance work after the assembly work, and the like.

  The side wall portion 20 includes a plurality of side wall members such as a first side wall member 21, a second side wall member 22, and side wall members 28a, 28b, 28c, and 28d. The first side wall member 21 includes a first side wall portion main body 23 and a seal portion 25, and the seal portion 25 is integrally formed on the end surface of the coupling portion 23 a of the first side wall portion main body 23. The second side wall member 22 includes a second side wall portion main body 24 and a seal portion 26, and the seal portion 26 is integrally formed on the end surface of the coupling portion 24 a of the second side wall portion main body 24. It is preferable that the 1st side wall part main body 23 and the 2nd side wall part main body 24 are shape | molded by the thermoplastic resin (this embodiment FRP). Moreover, it is preferable that the sealing parts 25 and 26 are shape | molded with the elastomer.

  The thermoplastic resin referred to in the present invention is ABS, polycarbonate (PC), polypyrobirene (PP), PBT, polyamide resin, phenol resin, FRP, or the like. In this embodiment, the thermoplastic resin is described as an ABS resin and FRP, but other resins described above may be used. The elastomer referred to in the present invention is a polymer material that exhibits thermoplasticity like a resin at high temperatures and exhibits elasticity at room temperature. Such thermoplastic elastomer is preferably one or more selected from polystyrene, polyolefin, polyester, polyurethane, polyamide, PVC, and fluorine elastomers.

  A method of integrally forming the seal portion on the end surface of the coupling portion of the component member will be described with reference to FIGS. This method is a so-called two-color molding method in which two injection ports or gates are provided in a mold. In the description of FIGS. 2 to 5, an example in which the seal portion 15 is integrally formed on the end surface of the coupling portion 14 a of the second ceiling portion main body 14 shown in the portion A of FIG. 1 will be described. The same method can be used when the sealing portion is integrally formed on the end surface of the coupling portion of the body. Therefore, the detailed description of the method of integrally forming the end surface of the coupling portion of the other component main body is omitted here.

  In FIG. 2, a movable mold 52 is detachably fixed to the fixed mold 51. The movable mold 52 is provided with a slide mold 53 so as to be slidable. The slide mold 53 is preferably slid by the driving force of a driving body such as a fluid pressure cylinder (not shown). The fixed mold 51 is formed with a first gate 55 for injecting a thermoplastic resin and a second gate 56 for injecting an elastomer.

  The state of FIG. 2 is a configuration for molding the second ceiling portion main body 14. A movable mold 52 is fixed to the fixed mold 51. A primary cavity 54 is formed between the fixed mold 51 and the movable mold 52. Further, at the stage of forming the second ceiling portion main body 14, the slide mold 53 is not slid and is positioned at a fixed position (upper position in FIG. 2). In the state shown in FIG. 2, high-temperature ABS resin (thermoplastic resin) heated to a predetermined temperature is injected from the first gate 55 into the primary cavity 54 (see FIG. 3).

  When the injected ABS resin is cooled and hardened, the slide mold 53 is slid in the direction of the arrow (downward) with the fixed mold 51 and the movable mold 52 fixed. As shown in FIG. 3, a space generated by sliding the slide mold 53 forms a secondary cavity 57. In the state shown in FIG. 3, a high temperature elastomer heated to a predetermined temperature is injected into the secondary cavity 57 from the second gate 56 (see FIG. 4). This elastomer can be heat-sealed to the end face of the joint portion 14a of the second ceiling portion body 14 formed of ABS resin, and is integrally formed in the course of cooling.

  When the injected elastomer has cooled, the movable mold 52 is opened. As shown in FIG. 5, the second ceiling member 12 in which the seal portion 15 made of elastomer is integrally formed on the end surface of the coupling portion 14 a of the second ceiling portion main body 14 is removed from the fixed mold 10.

  In the integrally molded second ceiling member 12, a seal portion 15 made of an elastically deformable elastomer is integrally formed on the end surface of the coupling portion 14a. For this reason, it is possible to provide a sealing effect only by performing an operation of coupling and fixing to the end face of the coupling portion 23b of the first side wall portion main body 23, thereby shortening the assembly operation time. In addition, the elasticity of the elastomer causes a sealing property, eliminating human error such as uneven application of the seal member and sealing material, forgetting to apply, and forgetting to fill. Furthermore, even when used in combination with members having different coefficients of thermal expansion, the elasticity of the elastomer does not reduce the sealing effect.

  The fixing means 60 for each component will be described with reference to FIG. In the description of FIG. 6, the first ceiling member 11 and the second ceiling member 12 shown in part B of FIG. 1 will be described with an example of fixing with bolts and nuts (fixing means). Since the structural members can be fixed in the same manner, detailed description is omitted here. The coupling portion 13b of the first ceiling portion main body 13 of the first ceiling member 11 and the coupling portion 14b of the second ceiling portion main body 14 of the second ceiling member 12 are connected to each other with a predetermined size. The through holes 13c and 14c are molded. Bolts 61 are inserted into the through holes 13 c and 14 c and fixed with washers 63 and 64 and nuts 62. As the bolt 61, a hexagonal bolt, a tetragonal bolt, a hexagon socket head cap screw, a slotted screw, a cross hole screw, a butterfly bolt, or the like can be used.

  FIG. 7 shows another embodiment of the fixing means between the constituent members. In the fixing means 70 of this embodiment, a female screw is formed at one portion of a C-shaped or U-shaped fixing main body 71, and a butterfly bolt 72 is screwed into the female screw. When the coupling portion 13b of the first ceiling member 11 and the coupling portion 14b of the second ceiling member 12 are sandwiched and the butterfly bolt 72 is tightened, the abutment portion 72a of the butterfly bolt 72 is connected to the coupling portion 14b. It abuts and is fixed as shown in FIG. In this case, tools such as a spanner and a wrench are not required, and the operation is easy. In this embodiment, a through hole is not necessary, but it is preferable that a convex portion is formed on the periphery of the surface on the opposite side of the contact surface of the coupling portion.

  FIG. 8 shows still another embodiment of the fixing means between the constituent members. The fixing means 80 of this embodiment is a pressing portion 82a, 82b of a clip-shaped fixing member 81 that is elastically deformable, and is a connecting portion 13b of the first ceiling member 11 and a connecting portion 14b of the second ceiling member 12. Are fixed. In other words, since it is only coupled and fixed by the elastic force of the clip-shaped fixing member, the assembling work becomes very easy. In this embodiment, a through-hole is not required, but it is preferable that a convex portion is formed on the periphery of the surface opposite to the contact surface of the coupling portion.

  With reference to FIG. 9, another embodiment of the seal portion integrally formed with the coupling portion of the component members will be described. In the above-described embodiment, the end surface of the seal portion has been described as a flat surface, but other shapes may be used. For example, as shown in FIG. 9, a part of the seal portion in which the end surface of the seal portion 116 integrally formed with the coupling portion 113 b of the component portion main body 113 is wider in the sectional view is arcuate. May be. With such a shape, waterproofness and watertightness can be improved. Further, the end surface may be concave. In short, any shape may be used as long as it is in close contact with the end surface of the coupling portion of the mating component member to be coupled and fixed to exhibit waterproofness, watertightness, and the like.

Still another embodiment of the seal portion integrally formed with the coupling portion of the component members will be described with reference to FIGS. FIG. 10 shows the shape before joining, and FIG. 11 shows the state after joining. As shown in FIG. 10, a seal portion 216 having an “E” shape in a cross-sectional view is integrally formed around the periphery of the component portion main body 213. That is, the seal portion 216 has one “U” -shaped portion in a cross-sectional view and is heat-sealed to the component main body 213. The component body 213 is molded from a thermoplastic resin, and the method of integrally molding the elastomer seal portion 216 is the same as the molding method described above, and a description thereof is omitted here. The seal portion 216 has a coupling concave portion 216a formed on the opposite side of the side integrally formed with the component main body 213, that is, the other “U” -shaped portion in a cross-sectional view. The concave dimension A of the coupling concave part 216 a is smaller than the thickness dimension B of the other component main body 214. That is, as shown in FIG. 11, when another component main body 214 is inserted into the coupling recess 216 a of the seal portion 216, the other component main body 214 is inserted while elastically deforming the coupling recess 216 a of the seal portion 216. Become. That is, the seal part 216 made of elastomer is elastically deformed so that the seal part 216 and the other component part main body 214 are in close contact with each other so that waterproofness and water tightness are generated. By setting it as such a shape, the adhesion surface for waterproofing can be doubled, and waterproofness and watertightness can be further improved. Further, the frictional force between the seal portion 216 and the other component main body 214 prevents movement below a predetermined load.
In addition, since the sealing portion made of elastomer is integrally formed with the component main body made of thermoplastic resin, the shape of the sealing portion can be easily formed according to the application.

  As mentioned above, although embodiment of this invention has been described, it cannot be overemphasized that the concrete structure of this invention is not limited to this embodiment.

FIG. 1 is a cross-sectional view showing an outline of a unit bathroom of the present invention. FIG. 2 is an explanatory diagram for explaining a method of forming the constituent members of the unit bathroom of the present invention, and shows a state in which the component main body (ceiling main body, side wall main body) can be formed. FIG. 3 is an explanatory diagram for explaining a method of forming the constituent member of the unit bathroom of the present invention, and shows a state in which a seal portion (elastomer) can be integrally formed on the end surface of the connecting portion of the constituent member. FIG. 4 is an explanatory view for explaining a method of forming the constituent member of the unit bathroom of the present invention, and is a view showing a state in which a seal portion is integrally formed on the end face of the connecting portion of the constituent member. FIG. 5 is an explanatory diagram for explaining a method for forming the constituent members of the unit-type bathroom according to the present invention, and shows a state in which the movable member is moved with respect to the fixed die and the constituent members are taken out. . FIG. 6 is an enlarged view of part B of FIG. 1 and shows a fixing means for connecting and fixing the connecting parts of the constituent members of the unit-type bathroom of the present invention. FIG. 7 is a view showing another fixing means for connecting and fixing the connecting portions of the constituent members of the unit bathroom of the present invention. FIG. 8 is a view showing still another fixing means for connecting and fixing the connecting portions of the constituent members of the unit bathroom of the present invention. FIG. 9 is a view showing another embodiment of a seal portion formed integrally with a component main body of a component member of a unit bathroom of the present invention. FIG. 10 is a view showing still another embodiment of the seal portion integrally formed with the constituent body of the constituent member of the unit bathroom of the present invention, and is a view showing a state before joining. FIG. 11 is a view showing still another embodiment of the seal portion integrally formed with the constituent portion main body of the constituent member of the unit-type bathroom of the present invention shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Bathroom 10 ... Ceiling part 11 ... 1st ceiling member 12 ... 2nd ceiling member 13 ... 1st ceiling part main body 14 ... 2nd ceiling part main body 15, 16, 17, 116, 216 ... Seal part 20 ... side wall part 21 ... first side wall member 22 ... second side wall member 23 ... first side wall part body 24 ... second side wall part body 25, 26 ... seal part 30 ... bottom part 31 ... first bottom member 32 ... second bottom member 51 ... fixed mold 52 ... movable mold 53 ... slide mold 54 ... first cavity 55 ... first gate 56 ... second gate 57 ... second cavities 60, 70, 80 ... fixing means 113 213... Configuration unit main body

Claims (6)

A component for configuring a unit-type bathroom,
A component body molded into a predetermined shape with a thermoplastic resin material;
A seal part that is integrally formed with the end face of the coupling part of the component part body and has a watertight property by being elastically deformed when pressed;
A constituent member of a unit-type bathroom, wherein when the joint part of the constituent part body and the joint part of another constituent part body are joined, the joint part is in a watertight state to prevent water leakage. It is a component of the unit type bathroom described in Claim 1,
The component part of the unit-type bathroom, wherein the seal part is formed of an elastomer that exhibits thermoplasticity when heated to a predetermined temperature and is elastically deformable at room temperature. The component member of the unit type bathroom according to claim 1 or 2,
The component part main body is a ceiling part main body divided into a plurality of parts so as to constitute a ceiling part. The component member of the unit type bathroom according to claim 1 or 2,
The component part main body is a side wall part main body divided into a plurality of parts so as to constitute a side wall part. A fixed mold,
A movable mold movable relative to the fixed mold;
A primary cavity for molding a component body formed between the fixed mold and the movable mold;
A first gate provided in the fixed mold for injecting a thermoplastic resin into the primary cavity;
A slide mold provided slidably on the movable mold;
A secondary cavity formed in the movable mold by sliding the slide mold,
A second gate for injecting an elastically deformable elastomer into the secondary cavity,
A component molding die for a unit-type bathroom, wherein the elastomer is thermally fused to an end surface of a coupling portion of the component main body, and a seal portion made of the elastomer is integrally formed on the component main body. Forming a primary cavity between the stationary mold and the movable mold for molding the component body,
Injecting thermoplastic into this primary cavity,
After the injected thermoplastic resin is solidified, a secondary cavity for forming a seal portion made of an elastomer is formed on the joint portion of the component main body through a slide mold that can slide on the movable mold. ,
Injecting the elastomer into this secondary cavity,
A structural member of a unit-type bathroom, wherein the elastomer is thermally fused to an end surface of a coupling portion of the component main body, and a seal portion made of the elastomer is integrally formed with the coupling portion of the component main body. Molding method.

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