JP2015181699A - Heatable toilet seat and method of manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heatable toilet seat that is provided with heating means capable of being attached to a seat member in a short time, and that has excellent appearance quality with no gap, and to provide a method of manufacturing the same.SOLUTION: A heatable toilet seat 100 is provided, in which heating means 120 integrally has a heat insulation material, a filamentous heating element that is disposed above the heat insulation material and that heats a seat member 110, and a heat dispersion sheet for dispersing the heat generated by the filamentous heating element by covering the heat insulation material while contacting with the filamentous heating element. Also, the seat member 110 and a bottom wall member 130 are fitted so that the heat dispersing sheet abuts the inside of the seat member 110, and the heat insulation material abuts the inside of the bottom wall member 130. And also, the seat member 110 and the bottom wall member 130 are bonded by a filling and fixing of a closing member 140 made from molten resin to the outside of a fitted part of the seat member 110 and the bottom wall member 130.

Description

  The present invention relates to a heated toilet seat and a method for manufacturing the same.

  The heating toilet seat has a configuration in which a heating element is disposed between a seating member and a bottom member. Generally, a method for manufacturing a heating toilet seat includes a step of molding the seating member and the bottom member, and a step of attaching the heating element to the seating member. And a step of joining the seating member and the bottom member by vibration welding or the like.

  In such a heated toilet seat, a gap is formed at the joint between the seating member and the bottom member, and there is a problem in use that dust and dust accumulate in the gap.

  In order to solve this problem, there is known a heated toilet seat in which a gap is formed by filling a gap formed in a joint portion between a seating member and a bottom surface member so as to eliminate the gap (for example, patent document). 1).

Japanese Patent Laid-Open No. 10-276935

  When manufacturing a heated toilet seat using the toilet seat disclosed in Patent Document 1 and its manufacturing method, primary molding for molding the seating member and the bottom member, and a gap formed at the joint between the seating member and the bottom member It is necessary to attach a heating element to the seating member during the secondary molding in which the melt is filled.

However, when the process of attaching the heating element to the seating member used in the conventional method of manufacturing a heated toilet seat is applied to the toilet seat manufacturing method disclosed in Patent Document 1, the time interval between the primary molding and the secondary molding is increased. It needs to be bigger.
If the time interval between the primary molding and the secondary molding is increased, the seating member and the bottom member may contract, and the appearance quality of the heating toilet seat may be impaired.

  Therefore, the present invention solves the above-described problems. That is, the object of the present invention is to provide a heating toilet seat having excellent appearance quality without gaps and having heating means that can be attached to the seating member in a short time. And a method of manufacturing the same.

  The invention according to claim 1 includes a seating member, a bottom wall member, and a hollow space formed between the seating member and the bottom wall member by joining the seating member and the bottom wall member. A heating toilet seated in the heating toilet, wherein the heating means includes a heat insulating material, a linear heating element that is above the heat insulating material and warms the seating member, and is in contact with the linear heating element. A heat dispersion sheet that diffuses heat generated by the linear heating element by covering the heat insulation material, the heat dispersion sheet abuts against the inner surface of the seating member, and the heat insulation material is the bottom The seating member and the bottom wall member are fitted so as to contact the inner surface of the wall member, and a closing member made of a molten resin is filled outside the fitting portion between the seating member and the bottom wall member. The seating member and the bottom wall member By being joined, it is to solve the aforementioned problems.

According to the heating toilet seat of the first aspect of the present invention, a hollow space formed between the seating member and the bottom wall member by joining the seating member, the bottom wall member, and the seating member and the bottom wall member. In addition to providing a heated toilet seat that allows the user to sit comfortably by having the heating means housed in the heating means, the heating means is located above the heat insulating material and the linear heating that warms the seating member The body and the heat dissipating sheet that diffuses the heat generated by the linear heating element by covering the heat insulating material while being in contact with the linear heating element can be integrated into the seating member when the heating toilet seat is manufactured. Since it is attached in time, a heated toilet seat with excellent appearance quality can be provided.
Further, the outer side of the fitting portion between the seating member and the bottom wall member is filled with a closing member made of a molten resin and solidified, so that the seating member and the bottom wall member are joined together, so that the seating member Since there is no gap between the bottom wall member and the bottom wall member, it is possible to prevent water from entering the hollow space.

  In the invention according to claim 2, in addition to the structure according to claim 1, the heat insulating material is an elastic member, and the heating means compresses in the thickness direction between the seating member and the bottom wall member. Thus, the above-described problems are further solved.

  According to the heating toilet seat of the invention according to the second aspect, in addition to the effect produced by the invention according to the first aspect, the heat insulating material, the seating member, and the bottom wall member are in close contact with each other, thereby improving the strength of the heating toilet seat. Can do.

  In the invention according to claim 3, in addition to the configuration described in claim 1 or 2, the heat insulating material is an elastic member, and the heat generating means is provided between the seating member and the bottom wall member. By compressing in the thickness direction, the above-described problems are further solved.

  According to the heating toilet seat of the invention according to claim 3, in addition to the effect exhibited by the invention according to claim 1 or 2, the lower part of the linear heating element becomes air having better heat insulation performance than the heat insulating material. Since heat dissipation to the bottom wall member side is suppressed, power consumption can be suppressed.

  In addition to the structure described in any one of Claims 1 to 3, the invention according to Claim 4 is characterized in that the heat insulating material has a recess on the bottom wall member side. The above-described problems are further solved.

  According to the heating toilet seat of the invention according to claim 4, in addition to the effect exerted by the invention according to any one of claims 1 to 3, the heat insulating layer between the heat insulating material and the bottom wall member is heat insulating. Since heat dissipation from the bottom wall member is suppressed by the air having better heat insulating performance than the material, power consumption can be further suppressed.

  The invention according to claim 5 includes a seating member, a bottom wall member, and a hollow space formed between the seating member and the bottom wall member by joining the seating member and the bottom wall member. And a heating means housed in a heat toilet, wherein the heat insulating material, a linear heating element that is above the heat insulating material and warms the seating member, and the heat insulation while contacting the linear heating element. A heating means preparatory step for preparing in advance the heating means integrally having a heat dispersion sheet for diffusing the heat generated by the linear heating element by covering the material, and a first mold and a second mold A seating member / bottom wall member molding step for molding the seating portion seat and the bottom wall member by injecting molten resin between the seating member and the bottom wall member The first mold and the second mold while being held in the second mold, respectively A separating mold separating step, a molding mold moving step for moving the first mold or the second mold so that the seating member and the bottom wall member face each other, and the seating member and the bottom A heating means insertion step of inserting the heating means between the wall member, a fitting step of fitting the seating member and the bottom wall member so as to sandwich the heating means, the seating member and the bottom wall The above-described problem is solved by providing a joining step of joining the seating member and the bottom wall surface member by injecting a closing member outside the fitting portion with the member.

According to the heating toilet seat manufacturing method of the present invention, since the heating means is integrated in advance, the heating toilet seat assembly time can be shortened.
Furthermore, since the molding of the seating member and the bottom wall member and the joining of the seating member and the bottom wall member are performed with a single injection molding machine, the production efficiency of the toilet seat can be improved.

  According to the present invention, there is provided not only a heating toilet seat that can be comfortably seated by a user, but also a heating toilet seat that has a heating means that can be attached to a seating member in a short time and has an excellent appearance quality without gaps, and a method for manufacturing the same be able to.

The perspective view which shows the external appearance of the heating toilet seat which is 1st Embodiment of this invention. The perspective view which shows the structure of the heating toilet seat which is 1st Embodiment of this invention. AA sectional drawing in FIG. Sectional drawing which shows only the heating means in FIG. Sectional drawing which shows the 1st modification of the heating means in FIG. Sectional drawing which shows the 2nd modification of the heating means in FIG. The flowchart of the manufacturing process of the toilet seat which is 1st Embodiment of this invention. Sectional drawing of the shaping | molding die of the BB part of FIG. 1 before starting shaping | molding in the manufacturing process of the toilet seat which is 1st Embodiment of this invention. Sectional drawing of the shaping die of the BB part of FIG. 1 in a seating member and bottom wall member shaping | molding process. Sectional drawing of the molding die of the BB part of FIG. 1 in a molding die movement process. Sectional drawing of the shaping | molding die of the BB part of FIG. 1 in a heating means insertion process. Sectional drawing of the shaping | molding die of the BB part of FIG. 1 in a fitting process. The principal part enlarged view of FIG.

  Below, the heating toilet seat 100 which is 1st Embodiment of this invention is demonstrated based on FIG. 1 thru | or FIG.

  In FIG. 1, the external appearance of the heating toilet seat 100 which is 1st Embodiment of this invention is shown. The heating toilet seat 100 is placed on the toilet bowl 800.

In FIG. 2, the structure of the heating toilet seat 100 which is 1st Embodiment of this invention is shown. The heated toilet seat 100 is inserted between a seating member 110 having a seating surface on which a user is seated, a bottom wall member 130 in contact with the toilet bowl 800, and the seating member 110 and the bottom wall member 130 so that the user's buttocks can be seen. And at least heating means 120 for heating.
The material of the seating member 110 and the bottom wall member 130 is polypropylene.

  FIG. 3 is a cross-sectional view of the heated toilet seat 100 taken along the line AA in FIG. The heating means 120 is in contact with the inner surfaces of the seating member 110 and the bottom wall member 130.

Also, a seating member end surface 111 at the end of the seating member 110, a joint surface 132 positioned below the fitting surface 131 of the bottom wall member 130 when the seating member 110 and the bottom wall member 130 are fitted, A space S composed of the virtual outline L of the seating member 110 is filled with a closing member 140 made of a molten resin and solidified.
Since the closing member 140 is filled and solidified in the space S, the gap between the seating member 110 and the bottom wall member 130 is closed, so that liquid does not enter from the fitting portion 131.

  The closing member 140 is made of the same polypropylene as the seating member 110 and the bottom wall member 130.

FIG. 4 is a cross-sectional view taken along line AA in FIG. 1 of the heating unit 120 according to the first embodiment of the present invention.
The heating means 120 includes a linear heating element 122 serving as a heat source, an aluminum heat dispersion sheet 121 that is bonded to the linear heating element 122 and diffuses the heat generated by the linear heating element 122, and the heat dispersion sheet 121. A heat insulating material 123 that is bonded and becomes a base material of the heating means 120 is integrally provided.
Since the heating means 120 integrally includes the linear heating element 122, the heat dispersion sheet 121, and the heat insulating material 123, the heating means 120 can be attached to the seating member 110 in a short time when the heating toilet seat 100 is manufactured.

  Further, since the linear heating element 122 is bonded to the heat dispersion sheet 121, the heat source is located closer to the seating member 110, so that the user's buttocks can be efficiently warmed.

The heat insulating material 123 is made of foamed polystyrene having elasticity, and the thickness thereof is larger than the thickness of the hollow space formed when the seating member 110 and the bottom wall member 130 are joined.
As a result, when the seating member 110 and the bottom wall member 130 are joined after the heating means 120 is inserted between the seating member 110 and the bottom wall member 130, the heating means 120 is caused to move by the elasticity of the heat insulating material 123. It is in close contact with the member 130.

Further, the heat insulator 123 has a groove portion 123 a that is wider and deeper than the diameter of the linear heating element 122 and accommodates the linear heating element 122, immediately below the linear heating element 122.
By providing the groove portion 123a immediately below the linear heating element 122, the lower portion of the linear heating element 122 becomes air having better heat insulation performance than the heat insulating material 123, and thus heat dissipation to the bottom wall member 130 side is suppressed. .

  In addition, although the cross-sectional shape of the groove part 123a is a rectangle in FIG. 4, any shape such as a semicircle or a rounded rectangle may be used as long as the width and depth do not cause thermal convection of air. Absent.

Moreover, as shown in the 1st modification of FIG. 5, you may cover only a part of side surface of the heat insulating material 123 with the thermal diffusion sheet 121. FIG.
When only a part of the side surface of the heat insulating material 123 is covered with the heat diffusion sheet 121, it is used by covering the heat dispersion sheet inner end 121a below the heat dispersion sheet outer end 121b in view of the seating state of the user. The outside side surface of the heated toilet seat 100 that does not contact the user's buttocks does not warm, and the user's buttocks are efficiently warmed, so that energy saving performance can be improved.

Furthermore, as shown in the second modified example of FIG. 6, the heat insulating material 123 may have a recess 123 b on the bottom wall member 130 side.
Since the heat insulating material 123 has the concave portion 123b, an air layer having better heat insulating performance than the heat insulating material 123 exists between the heat insulating material 123 and the bottom wall member 130, and thus heat dissipation from the bottom wall member 130 is suppressed. The

  The depth of the recess 123b is such that no thermal convection of air occurs.

  Furthermore, although the cross-sectional shape of the recess 123b is rectangular in FIG. 6, it may be any shape such as an oval or a rounded quadrilateral as long as it is deep enough to prevent thermal convection of air.

In the heating toilet seat 100 according to the first embodiment of the present invention thus obtained, the heating means 120 includes a heat insulating material 123, and a linear heating element 122 that is above the heat insulating material 123 and warms the seating member 110. By having the heat dispersion sheet 121 that diffuses the heat generated by the linear heating element 122 by covering the heat insulating material 123 while being in contact with the linear heating element 122, the appearance quality is excellent. A heated toilet seat 100 can be provided.
In addition, the outer side of the fitting portion 131 between the seating member 110 and the bottom wall member 130 is filled and solidified with a closing member 140 made of molten resin, so that the seating member 110 and the bottom wall member 130 are joined. Therefore, it is possible to prevent water from entering the hollow space.

  Furthermore, since the heat insulating material 123 is an elastic member and the heat generating means 120 is compressed in the thickness direction between the seating member 110 and the bottom wall member 130, the strength of the heating toilet seat 100 can be improved.

  Furthermore, since the heat insulating material 123 has the groove part 123a which accommodates the linear heat generating body 122 directly under the linear heat generating element 122, power consumption can be suppressed.

  Furthermore, since the said heat insulating material has a recessed part in the said bottom wall member side, power consumption can further be suppressed.

  The present invention provides a seating member, a bottom wall member, and a heating accommodated in a hollow space formed between the seating member and the bottom wall member by joining the seating member and the bottom wall member. In the heating toilet seat having means, the heating means covers the heat insulating material, a linear heating element that is above the heat insulating material and warms the seating member, and is in contact with the linear heating element And a heat dispersion sheet that diffuses the heat generated by the linear heating element, the heat dispersion sheet abuts against the inner surface of the seating member, and the heat insulating material contacts the inner surface of the bottom wall member. The seating member and the bottom wall member are fitted so as to come into contact with each other, and a closing member made of a molten resin is filled and solidified outside the fitting portion between the seating member and the bottom wall member. The seat member and the bottom wall member are joined together Cage, as long as it is excellent without the appearance quality gap having a heating means mounted in a short time to the seating member, specific embodiments thereof are may be any one.

For example, the seating member, the bottom wall member, and the closing member are made of polypropylene in the present embodiment, but may be any thermoplastic resin material.
The heat insulating material is made of expanded polystyrene in the present embodiment, but may be any material as long as it has elasticity and is flame retardant.
Further, although the heat diffusion sheet is made of aluminum in the present embodiment, any sheet may be used as long as it has high thermal conductivity and excellent moldability.

  Then, the manufacturing method of the heating toilet seat 100 which is 1st Embodiment of this invention is demonstrated based on FIG. 7 thru | or FIG.

  FIG. 7 is a flowchart of the manufacturing method of the heating toilet seat 100 according to the first embodiment of the present invention, and the manufacturing method of the heating toilet seat 100 according to the first embodiment of the present invention will be described along this flowchart.

FIG. 8 is a cross-sectional view of the molding die of the BB part of FIG. 1 before starting molding in the manufacturing process of the heating toilet seat according to the first embodiment of the present invention.
The toilet seat molding die 200 used in this manufacturing method is composed of a first mold 210 that is a concave mold and a second mold 220 that is a convex mold, and a seating member and a bottom wall member are used as a pair of molding molds. Can be molded simultaneously with a mold.

  First, a heating means preparation step S1 for preparing the heating means 120 as shown in FIG. 4 in advance is performed.

  In the heating means preparation step S <b> 1, the linear heating element 122 is laid on the heat dispersion sheet 121, and the heat dispersion sheet 121 integrated with the linear heating element 122 is attached to the heat insulating material 123.

  Next, a seating member / bottom wall member forming step S2 for forming the seating member and the bottom wall member is performed.

  FIG. 9 is a cross-sectional view of the molding die of the BB part of FIG. 1 in the seating member / bottom wall member molding step S2, and the molten resin R is put in the gap between the first die 210 and the second die 220. The seat member 110 and the bottom wall member 130 are injection molded by pouring.

Next, a molding die separation step S3 for separating the first die 210 and the second die 220 is performed.
In the molding die separation step S <b> 3, when the first die 210 and the second die 220 are separated, the seat member 110 is held on the first die 210 and the bottom wall member 130 is held on the second die 220.
Note that the method of holding the molding die may be fitting with the molding die or using air pressure.

  Next, a molding die moving step S4 for moving the first die 210 is performed.

FIG. 10 is a cross-sectional view of the molding die at the BB part in FIG. 1 in the molding die moving step S4.
The first mold 210 is moved so that the seating member 110 held by the first mold 210 and the bottom wall member 130 held by the second mold 220 face each other.
In the present embodiment, the first mold 210 is moved, but the second mold 220 may be moved.

  Next, a heating means insertion step S5 for inserting the heating means 120 is performed.

FIG. 11 is a cross-sectional view of the molding die of the BB part in FIG. 1 in the heating means insertion step S5, and the heating means 120 is placed on the bottom wall member 130.
In the present embodiment, the heating means 120 is placed on the bottom wall member 130, but it may be inserted into the seating member 110.

  Next, a fitting step S6 for fitting the first mold 210 and the second mold 220 is performed.

FIG. 12 is a cross-sectional view of the molding die of the BB part of FIG. 1 in the fitting step S6, and FIG. 13 is an enlarged view of the main part of FIG.
In the fitting step S <b> 6, the first mold 210 is moved so that the heating means 120 is inserted into the seating member 110.
In the present embodiment, the first mold 210 is moved, but the second mold 220 may be moved.

  Next, a joining step S7 for joining the first mold 210 and the second mold 220 is performed.

After fitting the seating member 110 and the bottom wall member 130, as shown in FIG. 13, the blocking member injection hole 211 is formed in the space S surrounded by the seating member end surface 111 and the joint surface 132 of the bottom wall member 130. More molten resin R is injected.
Thereby, the seating member 110 and the bottom wall member 130 are joined by the molten resin R, and the gap between the seating member 110 and the bottom wall member 130 can be closed.

  At this time, since the downward extending portion 122 is in contact with the second mold 220, the filling pressure of the molten resin R injected from the closing member injection hole 211 is received by the second mold 220.

  In the present embodiment, the first mold 210 has the closing member injection hole 211, but the second mold 220 may have the closing member injection hole.

  The heating toilet seat 100 is completed by opening the toilet seat molding die 200 after completion of the joining step S7.

The heating toilet seat 100, which is the first embodiment of the present invention thus obtained, integrates the heating means 120 in advance, so that the heating toilet seat assembly time can be shortened.
Furthermore, since the molding of the seating member 110 and the bottom wall member 130 and the joining of the seating member 110 and the bottom wall member 130 are performed with a single injection molding machine, the production efficiency of the toilet seat can be improved.

  The present invention provides a seating member, a bottom wall member, and a heating accommodated in a hollow space formed between the seating member and the bottom wall member by joining the seating member and the bottom wall member. A heating toilet seat having a means, a heat insulating material, a linear heating element that is above the heat insulating material and warms the seating member, and covering the heat insulating material while being in contact with the linear heating element A heating means preparing step in which the heating means integrally having a heat dispersion sheet for diffusing heat generated by the linear heating element is prepared in advance, and melting is performed between the first mold and the second mold. A seating member / bottom wall member molding step for molding the seating portion seat and the bottom wall member by injecting resin; the seating member as the first mold; and the bottom wall member as the second mold , Molding to separate the first mold and the second mold while holding each A mold separating step, a molding die moving step of moving the first die or the second die so that the seating member and the bottom wall member face each other, and the seating member and the bottom wall member A heating means insertion step for inserting the heating means therebetween, a fitting step for fitting the seating member and the bottom wall member so as to sandwich the heating means, and fitting of the seating member and the bottom wall member A joining step of joining the seating member and the bottom wall surface member by injecting a closing member to the outside of the joint, and having a heating means that can be attached to the seating member in a short time without gaps Any specific embodiment may be used as long as it can provide a heated toilet seat with excellent appearance quality and a manufacturing method thereof.

  For example, in the present embodiment, the seating member and the bottom wall member are joined by solidifying the molten resin, but may be joined by vibration welding.

  Moreover, in this embodiment, although the heating means insertion process was performed after the molding die movement process, you may perform a molding die movement process after a heating means insertion process.

DESCRIPTION OF SYMBOLS 100 ... Heating toilet seat 110 ... Seating member 111 ... Seating member end surface 120 ... Heating means 121 ... Heat dispersion sheet 121a, 121b ... Heat dispersion sheet inner end 122 ... Linear heat generation Body 123 ... Heat insulating material 123a ... Groove 123b ... Recess 130 ... Bottom wall member 131 ... Fitting surface 132 ... Joining surface 140 ... Closure member 200 ... Toilet seat molding metal Mold 210 ... First mold 211 ... Closure member injection hole 220 ... Second mold 800 ... Toilet bowl L ... Virtual outline S ... Space

Claims (5)

A seating member; a bottom wall member; and heating means housed in a hollow space formed between the seating member and the bottom wall member by joining the seating member and the bottom wall member. In the heated toilet seat,
The heating means is generated by the linear heating element by covering the heat insulating material, the linear heating element that is above the thermal insulating material and warms the seating member, and is in contact with the linear heating element. With a heat dispersion sheet that diffuses the heat
The seating member and the bottom wall member are fitted so that the heat dispersion sheet contacts the inner surface of the seating member, and the heat insulating material contacts the inner surface of the bottom wall member,
The seating member and the bottom wall member are joined by filling and solidifying a closing member made of a molten resin on the outside of the fitting portion between the seating member and the bottom wall member. And heating toilet seat. The heat insulating material is an elastic member;
The heating toilet seat according to claim 1, wherein the heating means is compressed in the thickness direction between the seating member and the bottom wall member.   The heating toilet seat according to claim 1 or 2, wherein the heat insulating material has a groove portion for storing the linear heating element immediately below the linear heating element.   The heating toilet seat according to any one of claims 1 to 3, wherein the heat insulating material has a recess on the bottom wall member side. A seating member; a bottom wall member; and a heating means housed in a hollow space formed between the seating member and the bottom wall member by joining the seating member and the bottom wall member. In the manufacturing method of the heated toilet seat,
A heat-generating material, a linear heating element that is above the heat-insulating material and warms the seating member, and covers the heat-insulating material while being in contact with the linear heating element to diffuse the heat generated by the linear heating element A heating means preparing step of preparing the heating means integrally having a heat dispersion sheet;
A seating member / bottom wall member molding step for molding the seating seat and the bottom wall member by injecting molten resin between the first mold and the second mold;
A molding mold separating step of separating the first mold and the second mold while holding the seating member in the first mold and the bottom wall member in the second mold;
A molding die moving step of moving the first die or the second die so that the seating member and the bottom wall member face each other;
A heating means insertion step of inserting the heating means between the seating member and the bottom wall member;
A fitting step of fitting the seating member and the bottom wall member so as to sandwich the heating means;
A method of manufacturing a heating toilet seat, comprising: a joining step of joining the seating member and the bottom wall surface member by injecting a closing member outside a fitting portion between the seating member and the bottom wall member. .

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