JP2006046790A - Door shelf mounting device for refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator facilitating foam filling to easily attain the reinforcement of a door shelf locking projection part. <P>SOLUTION: This refrigerator comprises a pair of bank wall 16 on both lateral sides of a door inner plate 11 integrally with the door inter plate, and a plurality of locking projections 15a and 15b opposed to the mutually opposed inner surfaces of both the bank walls 16, and an engagement groove 14 on a door shelf 13 side is fitted to the locking projections 15a and 15b, whereby the door shelf 13 is mounted on the door inner plate 11. The lower surfaces of the locking projections 15a and 15b are mutually connected by a connecting projection 17, and a foam heat insulating material 12 is filled therein, whereby the strength of the locking projections 15a and 15b can be easily increased. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a door shelf mounting device for a refrigerator.

Conventionally, this type of refrigerator door shelf mounting device is provided with a vertical bank wall integrally formed on the left and right sides of the door inner plate constituting the door body, and the both bank walls face each other. The mainstream is a refrigerator in which a locking projection opposite to the inner surface is provided, an engagement groove on the door shelf side is fitted to the locking projection, and the door shelf is attached to the door inner plate. (For example, see Patent Document 1)
FIG. 6 is a cross-sectional view of a conventional refrigerator door described in Patent Document 1, and FIG. 7 is a perspective view of a main part of a conventional refrigerator door shelf.

6 and 7, the rotary door body 1 is attached to the front opening of the refrigerator body, and includes a door outer plate 2, a door inner plate 3, and a door shelf 4. The door main body 1 fills the space closed by the door outer plate 2 and the door inner plate 3 with a foam heat insulating material 5 to ensure the heat insulation of the door. The door inner plate 3 is made of a synthetic resin sheet having a thickness of about 2 mm by vacuum forming or the like. The door shelf 4 is attached by engaging an engaging groove 7 of the door shelf 4 with a locking projection 6 formed integrally with the door inner plate 3. The locking projection 6 is also formed simultaneously with the vacuum forming of the door inner plate 3.
Japanese Patent Application Laid-Open No. 8-121949

  However, in the above conventional refrigerator configuration, the bank wall is made thin in order to increase the size of the refrigerator and increase the internal volume efficiency in recent years. For this reason, it is not possible to secure a sufficient thickness of the locking protrusion formed by extending the previous synthetic resin. In addition, it is difficult to fill the foaming heat insulating material into the locking projections with which the previous door shelf is engaged, and there is a disadvantage that the strength is insufficient. Furthermore, when trying to reinforce, there is a problem that complicated parts are required and the cost is increased.

  The present invention solves the above-described conventional problems. The lower surface of the locking protrusion is connected, and the locking protrusion is integrated to reinforce and fill the foam heat insulating material. It aims at providing the door shelf mounting apparatus of the refrigerator which made it easy to fill a foaming heat insulating material into a latching projection part by providing C surface in the surface with a bank wall.

  In order to solve the above conventional problems, the refrigerator shelf mounting apparatus of the present invention connects the lower side of the locking projection, reinforces the locking projection by integration, and fills with foam insulation to increase the strength. By providing a C surface on the surfaces of the locking projections and the bank wall, the foaming heat insulating material can be easily filled in the locking projections.

  Thereby, the filling property of the foaming heat insulating material in the locking projections is improved, and the strength of the locking projections can be increased by connecting the lower surfaces together.

  In the refrigerator door shelf mounting device of the present invention, the filling property of the foam heat insulating material in the locking projections is improved, and the strength of the locking projections can be increased by connecting the lower surfaces together.

  The invention according to claim 1 includes a door inner plate, a door outer plate, and a foam heat insulating material that constitute a door main body that opens and closes a front opening of the refrigerator main body, and is formed in the vertical direction formed on the left and right sides of the door inner plate The bank wall is integrated with the door inner plate, and there are a plurality of opposing locking projections on the opposing inner surfaces of both bank walls, and the locking grooves on the door shelf side are fitted into the locking projections. The door shelf is attached to the inner plate of the door, the lower surface of the locking protrusion is connected, and the connecting portion is filled with foamed heat insulating material, and the strength of the locking protrusion can be easily increased. Can do.

  According to a second aspect of the present invention, in the first aspect of the present invention, a C surface is provided on the joint surface between the locking projection and the bank wall, and the foamed heat insulating material can be easily filled into the hollow portion when the foamed heat insulating material is filled. Thus, the filling property can be improved and the strength of the locking projection can be increased.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
1 shows a front view showing the refrigerator door of the first embodiment of the present invention opened, FIG. 2 shows a cross-sectional view of the refrigerator door of the first embodiment of the present invention, FIG. FIG. 2 is a perspective view of a main part of a door shelf used in FIG. 1. FIG. 4: shows the principal part perspective view of the door inner board of the refrigerator by the same embodiment.

  1 to 4, the refrigerator compartment door main body 8 is a hinged rotary door that covers the front opening of the refrigerator main body 9.

  And the refrigerator compartment door main body 8 is comprised from the door outer plate 10, the door inner plate 11, the foam heat insulating material 12, and the door shelf 13 grade | etc.,. The said foam heat insulating material 12 is filled with the space which the door outer plate 10 and the door inner plate 11 make.

  The door inner plate 11 is integrally formed by vacuum forming or the like. In addition, the synthetic resin sheet used at the time of vacuum forming is a thin sheet of about 1.5 mm to 2.0 mm. 14 has an engaging groove 14 used when the door shelf 13 is attached to the previous door inner plate 11. The engaging groove 14 is fitted to locking protrusions 15a and 15b formed integrally with the door inner plate 11. Reference numeral 16 denotes a bank wall provided integrally with the door inner plate 11 in the vertical direction so as to form a pair on the left and right sides of the door inner plate 11. Reference numerals 15 a and 15 b denote locking protrusions provided on the inner surfaces of the two bank walls 16 facing each other. The locking projections 15 a and 15 b are also formed integrally with the door inner plate 11 like the bank wall 16. Reference numeral 17 denotes a connection protrusion that connects the lower surfaces of the locking protrusions 15a and 15b so as to be orthogonal to each other, and is integrally coupled to the locking protrusions 15a and 15b in a U-shape. The connecting projection 17 is also formed integrally with the door inner plate 11 like the bank wall 16. An engagement groove 14 on the door shelf 13 side is fitted to the locking protrusions 15 a and 15 b, and the lower surface of the engagement groove 14 hits the connection protrusion 17 and is attached to the door inner plate 11.

  With the above configuration, when the foam heat insulating material 12 is filled, the foam heat insulating material 12 flowing to the bank wall 16 easily flows to the connection protrusion 17 configured in parallel with the bank wall 16, and further, the connection protrusion 17 to the locking protrusion 15a. , 15b to improve fluidity. Therefore, it is possible to easily achieve the overall reinforcement to the locking protrusions 15a and 15b. Moreover, the engaging groove 14 lower surface of the door shelf 13 becomes a support of the connection protrusion 17, and an intensity | strength can improve.

(Embodiment 2)
FIG. 5 shows a cross-sectional view of the refrigerator door according to Embodiment 2 of the present invention. In the figure, by providing a C surface 18 on the surface of the locking projection 15a and the bank wall 16 and widening the opening of the hollow portion when filling the foam heat insulating material, the foam heat insulating material can be easily filled and the filling property is improved. Is. Furthermore, the strength can be increased by increasing the cross-sectional area of the locking protrusion 15a.

  As described above, the door shelf mounting apparatus for a refrigerator according to the present invention can easily achieve the reinforcement of the locking projection for engaging the door shelf. This facilitates foaming of the heat insulating material and simplifies the reinforcing structure.

The front view which opened and showed the door of the refrigerator of Embodiment 1 of this invention Cross-sectional view of the refrigerator door in Embodiment 1 of the present invention The principal part perspective view of the door shelf for refrigerators in the refrigerator The principal part perspective view of the door inner plate for refrigerators in the refrigerator Cross-sectional view of the refrigerator door in Embodiment 2 of the present invention Cross-sectional view of a conventional refrigerator door The principal part perspective view of the door shelf for refrigerators in the refrigerator

Explanation of symbols

DESCRIPTION OF SYMBOLS 8 Refrigerator door main body 10 Door outer plate 11 Door inner plate 12 Foam heat insulating material 13 Door shelf 14 Engagement groove 15a, 15b Locking protrusion 16 Bank wall 17 Connection protrusion 18 C surface

Claims (2)

A door inner plate, a door outer plate, and a foam heat insulating material that constitute a door main body that opens and closes a front opening of the refrigerator main body, and a vertical bank wall formed on both the left and right sides of the door inner plate, A plurality of engaging projections opposite to each other on the opposing inner surfaces of the both bank walls are provided, and an engaging groove on the door shelf side is fitted into the engaging projection, and the door shelf is used as a door inner plate. The refrigerator door shelf mounting device characterized in that it is attached, the lower surface of the locking projection is connected, and the connecting portion is filled with a foam insulation. 2. The door shelf mounting structure for a refrigerator according to claim 1, wherein a C surface is provided on a joint surface between the locking projection and the bank wall so that the foamed heat insulating material can be easily filled in the hollow portion when the foam heat insulating material is filled. apparatus.

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