JPH08219627A - Door cap of refrigerator - Google Patents

Abstract

PURPOSE: To improve the workability at the time of assembly of a refrigerator without generating a slip at the hinge center. CONSTITUTION: A door cap 9 of a refrigerator has a cylindrical hole 9a in which a hinge shaft 8c being provided on a refrigerator main body side is inserted, and covers the end part of a refrigerator door under a state wherein a hinge collar 10 consisting of a cylindrical body is inserted between the hinge shaft 8c and cylindrical hole 9a. For such a door cap of a refrigerator, a triangle pole shaft protuberance 9b which is formed at three locations with an equal interval to each other is provided on the inner peripheral side of the cylindrical hole 9a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a tubular hole through which a hinge shaft provided in a refrigerator main body is inserted, and a hinge collar made of a tubular body is interposed between the hinge shaft and the tubular hole. The present invention relates to a refrigerator door cap that covers the end of the refrigerator door in a state.

[0002]

2. Description of the Related Art FIG. 5 is a perspective view showing an example of a refrigerator having a door cap of this type. Drawers 2, 3, 4 serving as a vegetable compartment and a freezer compartment are provided on the lower side of the refrigerator body 1. The refrigerator compartment 5 is provided on the upper side. In addition to opening and closing the front opening of the refrigerator compartment 5,
A door 6 filled with foamed heat insulating material is provided.
One side of the upper and lower ends of the door 6 is attached to the refrigerator main body side via hinges 7, 7 and is openable and closable. For example, in the hinge portion 7 on the lower side, a substantially L-shaped metal hinge plate 8 as shown in an enlarged view is attached to the refrigerator body side. The hinge plate 8 includes a horizontal plate 8 provided at one end of a mounting portion 8a for the refrigerator body 1.
A hinge shaft 8c is projectingly provided at the end of b.

On the other hand, the upper and lower ends of the refrigerating compartment door 6 whose inside is filled with foamed heat insulating material are covered with a door cap 9. The relationship between the door cap 9 and the hinge plate 8 is shown in FIGS. The door cap 9 is formed by molding an ABS resin (polymer of acrylonitrile, butadiene, styrene) or the like, and has a cylindrical hole 9a through which the hinge shaft 8c is inserted at a corner corresponding to the hinge. Are integrally molded.

Reference numeral 10 indicates the cylindrical hole 9a and the hinge shaft 8
A hinge collar made of a cylindrical body interposed between c and made of elastic wear-resistant resin such as nylon (polyamide resin). This hinge collar 10 has a collar portion 10a having an outer diameter larger than the inner diameter of the cylindrical hole 9a on the lower side, an outer diameter slightly smaller than the inner diameter of the cylindrical hole 9a on the upper side, and an upper end portion closed. Has been.

When such a hinge collar 10 is inserted into the cylindrical hole 9a of the door cap 9 from below, the state shown in FIG. 7 (a) is obtained, and as shown in FIG. 7 (b) showing the AA cross section, The entire outer circumference of the hinge collar 10 is in close contact with the inner circumference of the cylindrical hole 9a. Then, by inserting the hinge pin 8c into the cylinder of the hinge collar 10 and attaching the hinge pin 8c to the refrigerator body 1, the door 6 can be opened and closed smoothly and the tubular hole 9a of the door cap 9 can be prevented from being worn. it can. In addition, the hinge portion 7 on the upper side also has substantially the same configuration as the above, except that the shape of the hinge plate is slightly different.

[0006]

However, in such a conventional example, in the work of attaching the hinge collar 10 to the cylindrical hole 9a of the door cap 9, it is difficult to insert the hinge collar 10 tightly due to the variation of each dimension, and the working time is long. However, there were some that required the hinge collar 10 and the other that was loose and the hinge collar 10 would fall out. For those that fall out, the hinge collar 10 was wrapped around with tape or the like while being adjusted. Therefore, there is a problem in workability when assembling the refrigerator.

Therefore, a dimensional variation is also adjusted by performing a simple process called a D-cut on a die portion corresponding to the cylindrical hole 9a of the door cap 9. That is, by performing a D-cut on the mold, as shown in FIG.
As shown in, the hinge collar 1 is attached to the corresponding portion of the cylindrical hole 9a.
A flat portion is formed at a contact portion with 0, and a margin (gap) for elastically deforming the hinge collar 10 is formed, so that it is possible to absorb variation in dimension. However,
In this case, the hinge center that is the center of rotation of the door 6 is shown in FIG.
As shown in (b) of No. 6, there is a problem that the door 6 is displaced, which hinders smooth opening and closing of the door 6.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a refrigerator door cap capable of improving workability when assembling a refrigerator without causing displacement of the hinge center. It is what

[0009]

According to the present invention, as described above, by providing a portion that partially abuts the outer peripheral surface of the hinge collar on the inner peripheral side of the cylindrical hole of the door cap, the respective sizes of the respective portions can be reduced. It focuses on the point that variations can be absorbed. Therefore, the invention according to claim 1 has a cylindrical hole through which the hinge shaft provided on the refrigerator main body side is inserted,
With a hinge collar made of a tubular body interposed between the hinge shaft and the tubular hole, in a refrigerator door cap that covers the end portion of the refrigerator door, at least three predetermined positions on the inner peripheral side of the tubular hole are provided. With the space between them, an abutting portion is formed which extends inward from the inner diameter of the cylindrical hole and abuts the outer peripheral surface of the hinge collar.

The invention according to claim 2 is to provide, as the abutting portion, triangular prism-shaped projections formed at three locations at equal intervals.

On the other hand, according to the third aspect of the present invention, the abutting portions are provided with flat surfaces formed at three locations at equal intervals.

[0012]

According to the structure described in claim 1, since the outer peripheral surface of the hinge collar is in contact with the abutting portions formed at least at three positions on the inner peripheral side of the cylindrical hole at a predetermined interval, the hinge center is provided. The deviation of each dimension can be absorbed by the gap generated between the contact portions without causing the deviation.

According to the second aspect of the present invention, since the abutting portions are protrusions in the shape of a triangular prism formed at three locations at equal intervals, the hinge center is displaced by a minimum of abutting portions. Since the contact area is minimized and the contact area is minimized, the variation in each dimension can be absorbed to the maximum extent.

On the other hand, according to the third aspect of the present invention, since the abutting portions are flat surfaces formed at three locations at equal intervals, the minimum abutting portion prevents the hinge center from shifting. In addition, it is possible to absorb the variation in each dimension, and it is possible to easily cope with it by simply forming D cuts at three places in the conventional mold.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view showing a door cap and a hinge portion of a refrigerator according to an embodiment of the present invention, FIG. 2 is a view showing a main portion thereof, and FIG. 3 is a hinge collar in a cylindrical hole of the door cap. It is a figure which shows the state in which was inserted. In each drawing, the same reference numerals as those in FIGS. 5 to 8 indicate the same or corresponding portions.

The refrigerator door cap according to the present embodiment is applied to the refrigerator as shown in FIG.
As shown in FIG. 6, the hinge plate 8 and the hinge collar 10 are shown in FIG.
It is similar to the conventional one shown in FIG. The door cap 9 in this embodiment is also integrally molded with the cylindrical hole 9a by molding ABS resin or the like. On the inner peripheral side of this cylindrical hole 9a, three linear holes extending from the lower end to the upper end are formed. Projections 9b, 9b, 9b are formed.

FIG. 2 (b) is an enlarged plan view of the cylindrical hole 9a according to the present embodiment, and FIG. 2 (c) is an enlarged perspective view of the portion A of FIG. 2 (a). The three protrusions 9b formed on the inner peripheral side of the cylindrical hole 9a are 120 ° apart from each other.
It is formed in a triangular prism shape with a sharp tip at three equally spaced angles. This is achieved by forming a V-shaped groove in the corresponding mold part. These three protrusions 9b serve as contact portions that contact the outer peripheral surface of the hinge collar 10 when the hinge collar 10 made of a wear-resistant resin having elasticity such as nylon is inserted.

When the hinge collar 10 is inserted into the cylindrical hole 9a as shown in FIG. 3A, the outer peripheral surface of the hinge collar 10 is cylindrical as shown in FIG. The three projections 9b formed at equal intervals on the inner peripheral side of the hole 9a are point-contacted and supported. It is clear that if the hinge collar 10 is supported at three points at equal intervals, the hinge centers will not be displaced, and since the contact area between them will be the smallest, the variation in each dimension should be absorbed to the maximum extent. You can Therefore, workability in assembling the refrigerator is considerably improved, and stable work efficiency can be secured.

FIG. 4 is a view showing the main part of another embodiment of the present invention. FIG. 4 (b) is an enlarged plan view of the cylindrical hole 9a according to this embodiment, and FIG. It is an expansion perspective view of the A section of a). In this embodiment, on the inner peripheral side of the cylindrical hole 9a, flat surfaces 9c projecting inward from the inner diameter thereof are formed at three positions with equal intervals. These planes 9c also serve as abutting portions that come into contact with the outer peripheral surface of the hinge collar 10, and can be easily realized by forming D-cuts at three locations on the corresponding mold parts.

Also in this embodiment, since the hinge collar 10 is supported at three places at equal intervals, the center of the hinge is not displaced, and the contact area is slightly larger than that in the above-mentioned embodiment. Since it is possible to sufficiently absorb the variation in the dimension of, and it is only necessary to form three D cuts in the conventional mold, it is possible to cope with the cost at a low cost.

In each of the above-described embodiments, the triangular columnar projections or flat surfaces are formed on the inner peripheral side of the cylindrical hole at three equally spaced intervals, and the respective unique effects can be obtained. The invention is not limited to these, and may be four or more locations, or may be a protrusion with a rounded tip, and these also achieve the intended purpose of the present application.

[0023]

As described above, according to the first aspect of the present invention, the outer peripheral surface of the hinge collar is formed at least at three positions on the inner peripheral side of the cylindrical hole at predetermined intervals. Since it is in contact with the contact portion, it is possible to absorb the variation in each dimension by the gap generated between the contact portions without causing the displacement of the hinge center, and it is possible to improve the workability when assembling the refrigerator.

Further, according to the second aspect of the present invention, since the abutting portions are triangular prism-shaped protrusions formed at three locations at equal intervals, the hinge center of the hinge center can be minimized. Since the deviation is prevented and the contact area is minimized, the variation in each dimension can be absorbed to the maximum, and the workability in assembling the refrigerator can be further improved.

On the other hand, according to the third aspect of the present invention, since the abutting portions are flat surfaces formed at three locations with equal intervals, the hinge center is prevented from being displaced by a minimum of abutting portions. In addition, it is possible to absorb the variation in each dimension, and it is possible to easily cope with the problem by simply forming D cuts at three places in the conventional mold.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a door cap and a hinge portion of a refrigerator according to an embodiment of the present invention.

FIG. 2 is a diagram showing a main part of FIG.

FIG. 3 is a view showing a state in which a hinge collar is inserted into a cylindrical hole of a door cap in the above embodiment.

FIG. 4 is a diagram showing a main part of another embodiment of the present invention.

FIG. 5 is a perspective view showing an example of a refrigerator having a door cap.

FIG. 6 is an exploded perspective view showing a door cap and a hinge portion of a conventional example.

FIG. 7 is a view showing a state in which a hinge collar is inserted into a cylindrical hole of a door cap in a conventional example.

FIG. 8 is a view showing a state in which a hinge collar is inserted into a cylindrical hole of a door cap in another conventional example.

[Explanation of symbols]

 1 Refrigerator body 5 Refrigerator 6 Door 7 Hinge part 8 Hinge plate 8c Hinge shaft 9 Door cap 9a Cylindrical hole 9b Protrusion 9c Plane 10 Hinge collar

Claims (3)

[Claims] 1. A refrigerator door having a tubular hole through which a hinge shaft provided on a refrigerator main body side is inserted, and a hinge collar made of a tubular body interposed between the hinge shaft and the tubular hole. In a refrigerator door cap that covers the end of the cylindrical hole, at least three locations on the inner peripheral side of the cylindrical hole are spaced at predetermined intervals and project out inward from the inner diameter of the cylindrical hole and contact the outer peripheral surface of the hinge collar. A refrigerator door cap, which is characterized in that an abutting portion is formed in contact therewith. 2. The door cap for a refrigerator according to claim 1, wherein the abutting portion is formed of triangular prism-shaped protrusions formed at three locations at equal intervals. 3. The abutting portion is composed of a flat surface formed at three locations at equal intervals.
The refrigerator door cap described.