JPH11211340A - Sash and door sash gasket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inexpensively obtain a sash having high quality and environmental adaptability by extruding an ABS resin or polypropylene sash body and a thermoplastic elastomer resin fin or gasket together to form a molding. SOLUTION: This sash is formed by extruding a sash body 11 and a thermoplastic elastomer resin fin 13 in a C-shaped gasket inserting part 12 of the sash body 11 together. The sash body 11 is made of an ABS resin, the fin 13 is made of a styrene-ethylene-propylene-styrene type thermoplastic elastomer resin. This constitution improves the seal property, and no Cl gas is produced since the ABS resin is used, without using a vinyl chloride resin, and thus the sash which never depletes the ozonosphere and has environmental adaptability is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sash on the periphery of a door used for refrigerators, showcases and the like.

[0002]

2. Description of the Related Art In recent years, sashes and door gaskets mounted along the periphery of doors for home refrigerators and commercial refrigerators have been used to maintain the density between the refrigerator body and the door body. Means for fitting the door gasket and means for fastening the door gasket to the outer panel of the door body with screws are used.

When the door gasket is mounted on the door body outer panel, the holes provided in the door gasket are hardly matched with the screw holes of the door body outer panel. Therefore, only the mounting portion of the door gasket is colored with a transparent soft resin having no screw hole. A door gasket that has been extruded at the same time as the base, expansion and contraction, and contact parts and that has been integrally attached to the door body is used. It is troublesome to tighten the screws with screws through the stoppers, and since the base is made of a soft material, the band-shaped stoppers cut into the corners of the base and the door gasket is easily damaged.

An example of a conventional door gasket is disclosed in Japanese Patent Application Laid-Open No. 7-31110.

A conventional door gasket will be described below with reference to the drawings. FIG. 4 is a cross-sectional view of a conventional door gasket. In FIG. 4, reference numeral 1 denotes a door gasket made of a vinyl chloride resin, which comprises a contact portion 2, a telescopic portion 3, a base portion 4, and a mounting portion 5. The door gasket 1 is attached to an outer plate attaching portion 7 of a door main body outer plate 6 by a band-shaped stopper 8 and a tap screw 9 at an attaching portion 5.

[0006]

However, in the structure of the prior art, the door gasket 1 made of vinyl chloride resin is attached to the door body outer plate 6 at the mounting portion 5 at the outer plate mounting portion 7 of the door body outer plate 6. The mounting portion 5 of the door gasket 1 is deformed and further damaged due to the attachment with the band-shaped stopper 8 and the tap screw 9, so that it is impossible to shut off the outside air which is the original function of the door gasket. Moreover, when attaching the door gasket 1, the band-shaped stopper 8 and the tap screw 9 are required, the number of parts and the number of steps are increased, and the price is high. further,
Since the material of the door gasket 1 is a vinyl chloride resin,
Chlorine gas is generated when incinerated as waste, destroying the ozone layer in the atmosphere, which is undesirable for the environment.

An object of the present invention is to provide a sash and a door sash gasket which are high quality, inexpensive and suitable for the environment, which solve the above-mentioned conventional problems.

[0008]

According to the present invention, there is provided a sash body made of ABS resin or polypropylene and a fin or a gasket made of thermoplastic elastomer resin, which are co-extruded and molded. .

As a result, a sash and a door sash gasket can be provided using materials suitable for the environment without generating chlorine gas at the time of incineration because a vinyl chloride resin is not used, thereby not destroying the ozone layer in the atmosphere.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention can be easily implemented by adopting the constitution described in each claim. That is, as described in claim 1, it has a sash body made of ABS resin and a fin portion made of a thermoplastic elastomer resin, and the sash body and the fin portion can be co-extruded and molded.

By providing the fin portion on the sash body, there is no gap between the sash body and the gasket attachment portion, and the sealing performance with the outside air is improved, so that the performance of the refrigerator is improved. Further, the sash body is made of ABS resin, and the fin portion is made of thermoplastic elastomer resin, so that a sash suitable for environment can be provided.

Further, as described in claim 2, claim 1
When the sash body described in (1) is made of a polypropylene resin, the sash body has improved chemical resistance and can provide a low-cost resin material and a sash suitable for the environment.

According to a third aspect of the present invention, there is provided a sash body made of an ABS resin and a gasket made of a thermoplastic elastomer resin, and the sash body and the gasket can be co-extruded and formed.

[0014] By co-extruding and molding the gasket on the sash body, there is no need to attach the gasket to the sash body, and the sealing performance with the outside air is further improved, and the durability of opening and closing the door is improved. The door sash gasket which can be improved can be provided.

Further, as described in claim 4, claim 3
When the sash body described in (1) is made of a polypropylene resin, the chemical resistance of the sash body is improved, and a low-cost resin material and a door sash gasket suitable for the environment can be provided.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a sash according to the present invention will be described below with reference to the drawings. The same components as those of the conventional example are denoted by the same reference numerals, and detailed description thereof will be omitted.

FIG. 1 is a sectional view of a sash according to a first embodiment of the present invention. FIG. 2 is a sectional view of a fitting portion in which a gasket is attached to the sash body of the first embodiment.

Hereinafter, a description will be given with reference to FIGS. In FIG. 1, reference numeral 10 denotes a sash, and a sash body 1
1 and a fin portion 13 made of a thermoplastic elastomer resin in a U-shaped gasket insertion portion 12 of the sash main body 11. The sash body 11 is made of an ABS resin, and the fin 13 is made of a styrene-ethylene-propylene-styrene-based thermoplastic elastomer resin. The sash body 11 may be a polystyrene resin. Reference numeral 14 denotes a cap door, which is fitted and attached to the sash main body 11 at a corner portion 15 and a claw portion 16.
2, reference numeral 17 denotes a door sash gasket integrally formed with a gasket 18, which is inserted into the gasket insertion portion 12 of the sash main body 11.

As described above, the sash 10 of the first embodiment has the sash main body 11 made of ABS resin and the fin 13 made of thermoplastic elastomer resin. By extruding and molding, the sealing performance is improved, and since an ABS resin is used without using a vinyl chloride resin, a sash suitable for an environment where no chlorine gas is generated at the time of incineration and the ozone layer is not destroyed can be obtained.

(Embodiment 2) Since the configuration is the same as that of Embodiment 1,
This will be described with reference to FIGS.

In FIGS. 1 and 2, reference numeral 10 denotes a sash,
The sash main body 11 and the fin 13 made of a thermoplastic elastomer resin are co-extruded in the U-shaped gasket insertion portion 12 of the sash main body 11. The sash body 11 in Example 2 is made of a polypropylene resin containing 5 to 50% by weight of a composite salt of magnesium oxide and silicic acid, and the fin portion 13 is made of EPDM rubber.

As described above, the sash 10 of the second embodiment
Is a sash body 11 made of polypropylene resin,
Having a fin portion 13 made of a thermoplastic elastomer resin,
The sash body 11 and the fin portion 13 are co-extruded and molded to improve the sealing property. Since the polypropylene resin is used without using the vinyl chloride resin, no chlorine gas is generated at the time of incineration, and the ozone layer is not destroyed. A sash 10 suitable for the environment can be provided. Further, since the polypropylene resin is used, the sash 10 which is inexpensive and has excellent chemical resistance can be provided.

(Embodiment 3) FIG. 3 is a sectional view of a door sash gasket according to Embodiment 3 of the present invention.

Hereinafter, description will be made with reference to FIG. FIG.
In the figure, 17 is a door sash gasket, which is formed by extruding the sash body 11 and the gasket 18 together. The sash body 11 is made of ABS resin, and the gasket 18 is made of styrene-ethylene-propylene-styrene-based thermoplastic elastomer resin. The sash body 11 may be a polystyrene resin. Reference numeral 14 denotes a cap door, which is a corner portion 15 and a claw portion 16 to which the sash main body 11 is fitted and attached.

As described above, the door sash gasket 17 according to the third embodiment includes the sash body 11 made of ABS resin and the gasket 18 made of thermoplastic elastomer resin.
The sash body 11 and the gasket 18 are co-extruded and molded to form a seal without any gap between the sash body 11 and the gasket 18, and use an ABS resin without using a vinyl chloride resin. Accordingly, a door sash gasket 17 suitable for an environment in which no chlorine gas is generated during incineration and the ozone layer is not destroyed can be provided. Furthermore, since a band-shaped stopper and a tap screw as in the conventional example are not required, the number of parts is reduced, and a low-cost door sash gasket 17 can be provided.

(Embodiment 4) Since the configuration is the same as that of Embodiment 3,
This will be described with reference to FIG.

In FIG. 3, reference numeral 17 denotes a door sash gasket, which is formed by extruding the sash body 11 and the gasket 18 together. The sash body 11 in Example 4 is made of a polypropylene resin containing 5 to 50% by weight of a composite salt of magnesium oxide and silica, and the gasket 18 is made of EPDM rubber.

As described above, the door sash gasket 17 according to the fourth embodiment has the sash main body 11 made of polypropylene resin and the gasket 18 made of thermoplastic elastomer resin, and the sash main body 11 and the gasket 18 are shared. By extruding and molding, there is no gap between the sash body 11 and the gasket 18 to improve the sealing property, and since the polypropylene resin is used without using the vinyl chloride resin, no chlorine gas is generated during incineration, and the ozone layer is destroyed. The door sash gasket 17 suitable for an environment where no noise occurs can be provided. Furthermore, since a band-shaped stopper and a tap screw as in the conventional example are not required, the number of parts is reduced, and a low-cost door sash gasket 17 can be provided.

[0029]

As described above, according to the first aspect of the present invention, the sash main body made of ABS resin and the fin portion made of thermoplastic elastomer resin are co-extruded and molded. Is provided with a fin portion, and there is no gap between the sash body and the gasket mounting portion, and the sealing performance with the outside air is improved, so that the cooling performance of the refrigerator is improved. Further, since the ABS resin is used, chlorine gas is not generated at the time of incineration, and a sash suitable for an environment in which the ozone layer is not destroyed can be provided. Furthermore, since a band stopper and a tap screw are unnecessary, the number of parts is reduced, and a low-cost sash can be provided.

According to the second aspect of the present invention, a sash body made of a polypropylene resin and a fin portion made of a thermoplastic elastomer resin are co-extruded and molded, and the sash body is made of magnesium oxide and silica. Made of a polypropylene resin containing 5 to 50% by weight of a composite salt of
Since the fin portion is made of EPDM rubber, a sash suitable for an environment in which chlorine gas is not generated at the time of incineration and an ozone layer is not destroyed can be provided because polypropylene resin is used without using vinyl chloride resin. Further, since the polypropylene resin is used, the sash is excellent in chemical resistance and can be provided at a lower price than the ABS resin.

According to the third aspect of the present invention, AB
Since the sash body made of S-resin and the gasket made of thermoplastic elastomer resin are co-extruded and molded, it is possible to provide a high quality door sash gasket in which there is no gap between the sash body and the gasket and the sealing property is improved. .
Furthermore, since an ABS resin is used without using a vinyl chloride resin, a chlorine gas is not generated at the time of incineration, and a door sash gasket suitable for an environment that does not destroy the ozone layer can be provided. Furthermore, since a tap screw is not required, the number of parts is reduced and a low-cost door sash gasket can be provided.

According to the fourth aspect of the present invention, since the sash body made of polypropylene resin and the gasket made of thermoplastic elastomer resin are co-extruded, there is no gap between the sash body and the gasket. A high quality door sash gasket with improved sealing performance can be provided. Further, a door sash gasket suitable for an environment in which chlorine gas is not generated at the time of incineration and an ozone layer is not destroyed because a polypropylene resin is used without using a vinyl chloride resin can be provided. Furthermore, since a tap screw is not required, the number of parts is reduced and a low-cost door sash gasket can be provided.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a sash according to embodiments 1 and 2 of the present invention.

FIG. 2 is a sectional view of a fitting portion in which a gasket is attached to the sash body.

FIG. 3 is a sectional view of a door sash gasket according to the third and fourth embodiments of the present invention.

FIG. 4 is a sectional view of a conventional door gasket.

[Explanation of symbols]

 Reference Signs List 10 sash 11 sash body 12 gasket insertion part 13 fin part 17 door sash gasket 18 gasket

Claims (4)

[Claims] 1. A sash comprising a sash body made of ABS resin and a fin portion made of a thermoplastic elastomer resin, wherein the sash body and the fin portion are coextruded and molded. 2. The sash according to claim 1, wherein the sash body is made of polypropylene resin instead of ABS resin. 3. A door sash gasket comprising a sash body made of an ABS resin and a gasket made of a thermoplastic elastomer resin, wherein the sash body and the gasket are coextruded and molded. 4. The door sash gasket according to claim 3, wherein the sash body is made of polypropylene resin instead of ABS resin.