JP2001336872A - Door handle of refrigerator and method of manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door handle of refrigerator having an elliptical cross-sec tion of easy-to-grip thickness in which the overall length can be increased, rusting or corrosion is prevented even if the handle is cleaned with water or detergent, and excellent design is provided while reducing the cost. SOLUTION: The door handle of refrigerator is made of a hollow steel pipe having surface subjected to baking finish.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator door handle.

[0002]

2. Description of the Related Art FIG. 10 is a side view of a conventional refrigerator in which main parts are cut away. In the figure, a heat insulating box 1 constituting a refrigerator main body has a heat insulating wall 4 made of a foamed heat insulating material interposed between an outer box 2 and an inner box 3. In addition, a door 7 having a handle 5 and a handle base 6 supporting the handle 5 is provided at the front opening of the refrigerator main body, and the door 7 is formed of the same heat insulating wall 4 as the heat insulating box 1. Since the handle 5 is attached over substantially the entire length of the door 7 in the vertical direction, the door 7 can be easily opened and closed regardless of the height of the user, regardless of the position of the handle 5.

FIG. 11 is a detailed view of a main part of FIG. As shown in the figure, the handle 5 is supported by a handle base 6, and the handle base 6 is fixed to a door 7 by screws 10. The handle cover 9 is fixed so as to be detachable by a claw, and a drain hole 6b is provided on the bottom surface of the cylindrical portion 6c of the handle base 6 into which the handle 5 is inserted. Such a conventional refrigerator door handle is disclosed in, for example, JP-A-11-237170.

[0004]

Since the conventional refrigerator is constructed as described above, when the material of the handle 5 is formed by injection, if the length of the handle is longer than 300 mm, the amount of deflection is large and the strength is insufficient. In order to compensate for this, there is a problem that a large-diameter object is required at the expense of design and ease of grasping, or a sheet metal part for reinforcement must be provided inside the injection, resulting in an increase in cost.

When the material of the handle 5 is made of a sheet metal part, the strength can be ensured, but when the handle 5 is cleaned with a wet cloth or detergent, moisture, detergent, etc. may be removed.
And a gap 6 in the handle base 6 for holding the handle.
a, there is a problem that rust and corrosion are caused on the end face.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and has an elliptical cross-section having a thickness that makes it easy to grasp the handle. An object of the present invention is to provide a door handle of a refrigerator and a method of manufacturing the door handle of the refrigerator, which are not rusted or corroded, have excellent design properties, and can be reduced in cost.

[0007]

SUMMARY OF THE INVENTION A door handle of a refrigerator according to the present invention is made of a hollow metal steel tube whose surface is baked.

[0008] Further, it is constituted by a stainless steel hollow metal tube.

Further, a round R is formed over the entire width of the handle.

[0010] The round R has a radius of 2000 mm or more.

The height inside the both ends of the handle is 1 unit.
It is set to 0 mm or more.

Further, in a refrigerator having a different width, a handle base made of a synthetic resin for improving design can be fixed together with a handle to absorb a dimension due to a difference in round shape of the door.

The fitting shape between the handle base and the handle also serves to prevent the rotation of the handle base.

The size of the screw plate for fixing the handle is larger than that of the handle base.

The burrs of the screw plate for fixing the handle and the burrs during molding are opposite to the direction of the door panel.

Further, a handle cover also serving as a blindfold for improving designability is detachably fitted to the handle base.

The handle cover is made of a thermoplastic resin.

Further, the fitting position between the handle cover and the handle base is a position that cannot be seen from the front of the refrigerator.

Further, the metal hollow steel pipe is formed into an ellipse or an ellipse which fits a hand holding the cross-sectional shape.

Further, the end of the metal hollow steel pipe is press-worked to simultaneously provide a shape for preventing water from entering and a shape for fixing the door.

The handle cover, which also serves as a blindfold for improving the design, is formed by pressing the end of a hollow metal steel tube to simultaneously provide a shape for preventing water from entering and a shape for fixing the door. It covers the part.

Further, the end of the press section of the metal hollow steel pipe is raised.

In the method for manufacturing a door handle of a refrigerator according to the present invention, first, a metal hollow steel pipe is plastically deformed to form a shape, and then the surface of the metal hollow steel pipe is baked and painted.

The baking coating is performed by hanging a metal hollow steel pipe on a hanger after molding.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. 1 to 4 show the first embodiment. FIG. 1 is a front view of a door handle of a refrigerator, FIG. 2 is a sectional view taken along line ZZ of FIG. 1, FIG. Fig. 3 is an installation diagram of a door handle and a handle base of the refrigerator.

In FIG. 2, the handle 5 is made of, for example, a metal hollow steel tube made of a cold-rolled steel plate, whose surface is baked for the purpose of improving design and preventing rust. Here, since the handle 5 of the refrigerator is formed by first plastically deforming a hollow metal steel tube to form a shape and then baking and coating, compared to a handle that co-extrudes a steel tube and a resin film and then process-molds the steel tube, the handle 5 of the refrigerator is harder to handle. Since there is no discoloration or the like due to elongation, there are few restrictions on the shape of the handle. As shown in FIG.
Enhance the handleability around 124.4cm (Industrial Design Complete Book 6, Function and Design, Kanehara Publishing), and handle both ends of handle 5 in order to reduce the protruding feeling in order to create a neat design impression. Round R on width
Is molded.

In addition, since the baking coating is performed by hanging a steel pipe on a hanger after molding, a large amount of articles can be manufactured at a time and the cost can be reduced. Further, in a refrigerator having a different width, a synthetic resin handle base 6 fixed to the door 7 together with the handle 5 with screws 10 absorbs the size due to the difference in the round shape of the door 7 to achieve the common use of the handle 5 and the design. It is used to blind the fixed parts (both ends) of the handle 5 for improvement.

Reference numeral 9 denotes a handle cover, which is used when replacing the handle 5 or the handle base 6 at the time of service or the like.
Since it is necessary to remove 0, it is fitted to the handle base 6 using the elastic force of the synthetic resin claw so that it can be detached.
Further, the screw 10 also serves as a blindfold for improving the design.

Reference numeral 22 denotes a screw plate for fixing the screw 10, and reference numeral 23 denotes burrs generated at the end of the screw plate 22. The handle 5 and the handle base 6 are fixed to the screw plate 22 via the door panel 7a, and the area of the screw plate 22 is larger than the area of the handle base. The direction of the burrs of the screw plate 22 and the direction of the mold burrs 23 are opposite to the direction of the door panel 7a.

Thus, even when a force is applied to the handle 5 during use, the design of the door panel 7a is improved without swelling or a trace of the screw plate.

In the first embodiment, the handle 5 is baked and painted. However, as a rust preventive treatment, one or more layers of plating or the like are performed before painting to prevent rust or corrosion during use. The problem is solved. Further, a stainless steel hollow metal tube having no fear of rust or corrosion may be used. This can solve the same problems as described above and provide a high-quality design with excellent design. .

In the first embodiment, when the handle 5 made of a metal hollow steel pipe has a round shape,
During manufacture, the hollow portion (MM shape) of the handle 5 may be crushed (sinks may occur), and the crush can be prevented by setting the radius X of the round shape of the handle 5 to 2000 mm or more as shown in FIG. .

The height Y of the rounded handle 5 is set to be higher than the thickness of the base of the thumb at the position where the gap between the door and the handle 5 is minimum, and the upper end of the door handle. The shape of the inside of the door handle of the handle base and the handle cover forming the lower end is rounded or the like to avoid an acute angle so that the user's hand is not pinched.

The handle cover of the first embodiment is
The handle 5 is shaped so as to cover the deformed portions 20 (see FIG. 4) generated by processing such as pressing at both ends of the handle 5. This improves the design.

If the handle cover is made of a thermoplastic material, the handle cover can be easily attached and detached.

FIG. 4A shows the handle base 6.
FIG. 4B shows the handle 5 attached, and FIG. 4C shows the handle base 6 and the handle 5 attached thereto. The handle base 6 and the handle 5 can be easily mounted, and the handle base can be prevented from rotating as shown in the enlarged view of the portion Z, so that the handle 5 and the handle base can be mounted on the door. And the handle base 6 is stabilized.

Embodiment 2 FIG. 5 is a sectional view taken along line YY of FIG. In addition to the configuration of the first embodiment, as shown in FIG. 3, the cross-sectional shape is made elliptical or elliptical, so that it is easy to hold, giving a neat impression when the refrigerator is viewed from the side, and the design is improved. A refrigerator door handle can be provided.

Embodiment 3 FIG. 6 is a view showing a third embodiment, and is a detailed view of a door handle of a refrigerator. As shown in FIG. 6, both ends of the handle 5 are pressed by press working. Accordingly, water can be prevented from entering the inside of the handle 5, and even if water is transmitted along the surface of the handle 5 and enters the handle base 6, the water is quickly drained from the fitting portion between the handle base 6 and the handle cover 9. Have.

Thus, since there is no need to provide a special water flow path, restrictions on the shapes of the handle base 6 and the handle cover 9 can be relaxed.

Embodiment 4 FIG. FIG. 7 shows the fourth embodiment, and is a detailed view of a door handle of a refrigerator. As shown in FIG. 7, a portion of the flange 5a pressed by pressing is used.
Has been launched. Thus, when the handle 5 is attached to the door 7 using the screw 10 or the like in the line work, even if the fastening tool 11 is accidentally disengaged from the screw 10, the raised flange 5a acts as a stopper to the door panel 7a by the fastening tool 11. It has the effect of preventing scratching.

In addition, the width of the handle cover can be reduced to prevent the end face from being spread due to the press working by raising the flange 5a, so that the design is excellent.

Embodiment 5 FIG. 8 and 9 show the fifth embodiment. FIGS. 8 and 9 (a) are perspective views of the vicinity of the handle cover, and FIG. 9 (b) is a view as seen from the direction A in FIG. 9 (a). . In the figure, 5 is a handle, 6 is a handle base,
Reference numeral 9 denotes a handle cover, as shown in FIG. 8, where the handle base 6 and the handle cover 9 are divided (part dividing line).
21 is a position that is difficult to see from the front of the refrigerator.

Also, as shown in FIG. 9, the dividing position 21 of the handle base 6 and the handle cover 9 can be viewed from the front so as not to be seen not only from the front but also from the left and right directions.
It is more preferable that the width of the handle 5 be smaller than that of the handle 5. Thereby, the designability can be improved.

Further, the handle base 6 and the handle cover 9 may be integrated, and the handle 5 and the insert may be formed by insert molding.

[0045]

As described above, the door handle of the refrigerator according to the present invention is made of a hollow metal steel tube whose surface is baked to provide a door handle with a high metallic texture and a high design quality. it can. In addition, since the mold cost can be reduced compared to the mold at the time of injection molding, an inexpensive door handle can be provided.

Further, since it is made of a stainless steel hollow metal tube, it is possible to provide a door handle having a high metallic texture and an improved design. In addition, since the mold cost can be reduced compared to the mold at the time of injection molding, an inexpensive door handle can be provided.

Further, since the round R is formed over the entire width of the handle, both ends of the handle are less protruding, so that the design can be made to have a clear impression.

The round R can be prevented from leaking by setting the radius to 2000 mm or more.

The height inside the both ends of the handle is 1
By setting it to 0 mm or more, it is possible to suppress the user's hand from being caught.

By fixing a synthetic resin handle base to the door together with the handle for improving the design,
Dimensions due to differences in round shape of doors can be absorbed in refrigerators of different widths.

Further, the fitting shape of the handle base and the handle also prevents rotation of the handle base, so that the handle base is stabilized.

Since the size of the screw plate for fixing the handle is larger than the handle base, there is no problem even if a force is applied to the handle during use.

Further, since the burrs of the screw plate for fixing the handle and the burrs at the time of molding are opposite to the direction of the door panel, there is little possibility that a mark is formed on the door panel.

Also, the design is improved by detachably fitting the handle cover to the handle base.

Further, the use of a thermoplastic resin as the material of the handle cover facilitates the attachment and detachment of the handle cover.

Further, the fitting position between the handle cover and the handle base is set at a position invisible from the front of the refrigerator, so that the design is improved.

Also, by making the metal hollow steel pipe an ellipse or an ellipse that fits a hand holding the cross-sectional shape,
It is possible to provide a refrigerator door handle which gives a clear impression when the refrigerator is viewed from the side and has improved design.

Further, since the end of the metal hollow steel pipe is press-worked and the shape for preventing water from entering and the shape for fixing the door are provided at the same time, no special water flow path needs to be provided. The restriction on the shape of the handle cover can be relaxed.

A handle cover also serving as a blindfold for improving the design is formed by pressing the end of a metal hollow steel pipe to provide a water infiltration preventing shape and a door fixing shape at the same time. By covering the portion, the design is improved.

In addition, since the end of the pressed portion of the metal hollow steel pipe is raised, the handle can be mounted on the door using a screw or the like in a line operation even when the fastening tool is accidentally disengaged from the screw. The flange serves as a stopper and has an effect of preventing the fastening tool from damaging the door panel.

The method for manufacturing a door handle of a refrigerator according to the present invention is as follows. First, a metal hollow steel pipe is plastically deformed to form a shape, and then the surface of the metal hollow steel pipe is baked and painted.
Since there is no flaw or discoloration due to resin elongation, there is less restriction on the handle shape as compared with a handle that co-extrudes a steel pipe and a resin film and then processes and forms.

Further, since the baking coating is performed by hanging a metal hollow steel pipe on a hanger after molding, a large quantity of articles can be manufactured at once and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 shows the first embodiment, and is a front view of a door handle of a refrigerator.

FIG. 2 is a view showing the first embodiment, and is a sectional view taken along the line ZZ of FIG. 1;

FIG. 3 is a view showing the first embodiment, and is a side view of a door handle of the refrigerator.

FIG. 4 is a view showing the first embodiment, and is an attachment view of a door handle and a handle base of the refrigerator.

FIG. 5 is a view showing the second embodiment, and is a YY sectional view of FIG. 1;

FIG. 6 shows the third embodiment, and is a detailed view of a door handle of the refrigerator.

FIG. 7 is a view showing the fourth embodiment, and is a detailed view of a door handle of the refrigerator.

FIG. 8 is a view showing the fifth embodiment, and is a perspective view near the door handle cover of the refrigerator.

FIG. 9 shows the fifth embodiment, and is a view near the door handle cover of the refrigerator.

FIG. 10 is a side view of a door handle of a conventional refrigerator in which a main part is cut away.

FIG. 11 is a detailed view of a main part of a door handle of a conventional refrigerator.

[Explanation of symbols]

1 Insulated box, 2 Outer box, 3 Inner box, 4 Insulated wall, 5
Handle, 5a flange, 6 handle base, 6a
Gap, 6b drain hole, 6c cylinder, 7 door, 7a
Door panel, 8 baking finish, 9 handle cover, 10
Screws, 11 tightening tools, 20 deformed parts, 21 split positions, 22 screw plates, 23 burrs.

Claims (18)

[Claims] 1. A refrigerator door handle comprising a hollow metal steel tube having a surface baked and painted. 2. The refrigerator door handle according to claim 1, wherein the door handle is made of a stainless steel hollow metal steel tube. 3. The refrigerator door handle according to claim 1, wherein a round R is formed over the entire width of the handle. 4. The refrigerator door handle according to claim 3, wherein the round R has a radius of 2000 mm or more. 5. The height inside the both ends of the handle is 10 m.
4. The door handle of a refrigerator according to claim 3, wherein the distance is at least m. 6. The refrigerator according to claim 1, wherein in the refrigerator having a different width, a handle base made of a synthetic resin is fixed to the door together with the handle in order to absorb a dimension due to a difference in round shape of the door and to improve design. Refrigerator door handle. 7. The door handle of a refrigerator according to claim 6, wherein the fitting shape between the handle base and the handle also serves to prevent rotation of the handle base. 8. The refrigerator door handle according to claim 6, wherein the screw plate for fixing the handle is larger than the handle base. 9. The door handle of a refrigerator according to claim 6, wherein burrs of the screw plate for fixing the handle and burrs during molding are opposite to the direction of the door panel. 10. The refrigerator door handle according to claim 6, wherein a handle cover also serving as a blindfold for improving design is detachably fitted to the handle base. 11. The door handle of a refrigerator according to claim 10, wherein a material of the handle cover is made of a thermoplastic resin. 12. The refrigerator door handle according to claim 6, wherein the fitting position between the handle cover and the handle base is set so as not to be seen from the front of the refrigerator. 13. The door handle of a refrigerator according to claim 1, wherein the metal hollow steel tube is an ellipse or an ellipse that fits a hand holding the cross-sectional shape. 14. An end of the metal hollow steel pipe is pressed,
The door handle of a refrigerator according to claim 10, wherein a shape for preventing water from entering and a shape for fixing the door are provided at the same time. 15. Deformation that occurs when a handle cover also serving as a blindfold for improving design is formed by pressing an end of a metal hollow steel pipe to simultaneously provide a water infiltration prevention shape and a door fixing shape. The door handle of a refrigerator according to claim 14, wherein the door handle is covered. 16. The door handle of a refrigerator according to claim 14, wherein an end of the press portion of the metal hollow steel pipe is raised. 17. A method of manufacturing a door handle of a refrigerator, comprising first forming a shape by plastically deforming a hollow metal steel tube and then baking the surface of the hollow metal steel tube. 18. The method for manufacturing a door handle of a refrigerator according to claim 17, wherein the baking coating is performed by hanging a metal hollow steel pipe on a hanger after molding.