JPH11159945A - Door for refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of parts and, at the same time, to secure a sufficiently strong fitting strength at the time of fitting a handle to a door for refrigerator. SOLUTION: Bosses 29 and 29 having threaded holes are integrally provided with a lower cap 24 comprising part of an outer shell of the main body 21 of a door and a handle 37 is fitted to the bosses 29 and 29 with screws 39. Therefore, the number of parts required for fitting the handle 37 to the main body 21 is reduced at the time of fitting the handle 37 to the main body 21, because no separate patch, etc., is required. In addition, a sufficiently strong fitting strength can be secured without relying upon the adhesive strength between the bosses 29 and a foamed heat insulating material and for filling up the internal space of the main body 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a storage door provided with a handle.

[0002]

An example of a conventional structure of a storage, for example, a door of a refrigerator is shown in FIGS. The door body 1 of the door has a rectangular front plate 2a and a door outer plate 2 having bent pieces 2b bent rearward on two left and right sides of the front plate 2a. Plastic caps 3 and 4 attached to upper and lower sides of door outer panel 2
The door inner plate 5 disposed on the back side of the door outer plate 2 and the space formed by the door outer plate 2, the caps 3, 4 and the door inner plate 5 were filled by so-called in-situ foaming. And a foamed heat insulating material 6 made of hard foamed polyurethane. A handle 7 (see FIG. 9) is attached to a left portion of the front surface of the door body 1.

The handle 7 is provided with a screw 9 inserted through a screw insertion hole 7a formed in the handle 7 and a screw insertion hole 8 formed in the front plate 2a of the door outer plate 2, and is inserted into the front plate 2.
a is fixed to the front surface of the door body 1 by being screwed into a screw hole 10a of the backing plate 10 provided on the back surface side of the door body a. The handle 7 has a decorative member 11 so as to hide the screw 9.
Is attached.

[0004] However, the conventional configuration described above has the following disadvantages. First, since the backing plate 10 is separately required to attach the handle 7, the number of parts is increased and the cost is increased accordingly. The strength when the handle 7 is pulled basically depends on the adhesive force between the backing plate 10 and the foamed heat insulating material 6. For this reason, when the area of the contact between the backing plate 10 and the foamed heat insulating material 6 is small, it cannot withstand the load when the door is opened, and the adhesion between the backing plate 10 and the foamed heat insulating material 6 peels off. The opening and closing operation of the door may be hindered.

On the other hand, the foam insulation 6 of the backing plate 10
When the contact area is increased, the contact plate 10
Is not adhered between the front plate portion 2a of the door outer panel 2 and the foamed heat insulating material 6 in a portion where the foamed heat insulating material 6 is formed. There is a problem that distortion occurs between the unbonded portion and the bonded portion, and thus, the surface of the front plate portion 2a tends to be distorted.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to reduce the number of parts for mounting a handle, secure the mounting strength, and generate distortion on the door surface. It is to provide a storage door which can be suppressed.

[0007]

In order to achieve the above-mentioned object, a door of a storage according to the present invention has a rectangular plate shape, and is a bent plate portion which is bent rearward on two opposite sides, left, right or up and down. A door outer plate made of a metal plate having: a cap mounted on the remaining two sides of the four sides of the door outer plate where the bent plate portion does not exist; and a rear side of the door outer plate. A door inner plate, a foam insulating material filled in a space formed by the door outer plate, the cap, and the door inner plate; a boss having a screw hole provided integrally with the cap; A handle fixed to the boss by a screw screwed into the hole.

According to the above-described structure, the handle is screwed to the boss provided integrally with the cap, so that the attaching of the handle does not require a separate contact plate or the like. In addition, the boss for screwing the handle is provided integrally with the cap that forms part of the outer shell of the door, so sufficient mounting is possible without relying on the adhesive force between the boss and the foam insulation. Strength can be secured.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment in which the present invention is applied to a refrigerator door will be described below with reference to FIGS. First, in FIG. 1, the door body 21 has a rectangular front plate portion 22a, and a bent piece portion 22b which is bent rearward on two left and right sides of the front plate portion 22a.
A door outer panel 22 (only one is shown in FIG. 1), plastic caps 23 and 24 mounted on upper and lower sides of the door outer panel 22, and a rear side of the door outer panel 22. Door inner plate (not shown), door outer plate 22 and cap 2
The space formed by the doors 3 and 24 and the door inner plate is constituted by a foam heat insulating material 26 (see FIG. 3) made of hard foam polyurethane filled by in-situ foaming. Grooves 27 (see FIG. 7) are formed in the upper and lower caps 23 and 24 so as to correspond to the upper edge and the lower edge of the door outer panel 22. It is attached to the door outer panel 22 by fitting to the edge and the lower edge.

[0010] Of the two upper and lower caps 23 and 24, a recess 28 is formed in the front part on the left side of the lower cap 24, as shown in Figs. At the same time, bosses 29 are provided on the left and right sides of the recess 28 by integral molding. Each boss 29
Has a screw hole 30 that has an open front surface and extends in the front-rear direction. A plurality of ribs 31 extending in the front-rear direction, which is a direction intersecting with the front plate 22a of the door outer panel 22, are provided integrally with the periphery of each boss 29, and intersect with the ribs 31. The auxiliary rib 32 is also provided integrally.

The front end of each rib 31 is substantially flush with the front surface of the boss 29, and the front plate 22a of the door outer plate 22 is provided.
Is in contact with or close to the rear surface of the. The auxiliary rib 32 faces the back surface of the front plate 22a with a gap. As shown in FIG.
As shown in FIG. 3, a concave portion 35 for inserting a finger is formed in a portion corresponding to the concave portion 28, and circular portions corresponding to the screw holes 30 of each boss portion 29 are located on both left and right sides of the concave portion 35. A screw insertion hole 36 is formed.

On both left and right sides of the handle 37 made of plastic, screw insertion holes 38 are formed corresponding to the screw insertion holes 36 of the front plate 22a. And 36 are screwed into the screw holes 30 of each boss portion 29 so that they are fixed to the front portions of both boss portions 29 so as to straddle the concave portions 35 and 28.

A storage recess 40 is formed on the right side of the front surface of the lower cap 24.
Although not shown, the operation panel is housed. A decoration member 41 is attached to the front surface of the lower cap 24 so as to cover from the front except for the operation panel portion, and the decoration member 41 covers the handle 37 from the front. An auxiliary cover 42 is attached to the right side of the front surface of the cap 24.
In FIG. 3, a tape 43 is attached to an upper portion of the rib 31 around the boss portion 29 so as to cover the opening 31 a between the ribs 31 and before filling the foamed heat insulating material 26.

The above configuration has the following advantages. The handle 37 is attached to the lower cap 24 which forms a part of the outer shell of the door body 21 by a boss 29 provided integrally therewith.
The mounting of the handle 37 is not required for mounting the handle 37 by using a screw 39. Therefore, the number of parts can be reduced and the cost can be reduced accordingly.

Boss 29 for screwing handle 37
Is provided integrally with the cap 24 which constitutes a part of the outer shell of the door body 21, so that sufficient mounting strength is ensured without relying on the adhesive force between the boss portion 29 and the foam heat insulating material 26. be able to. Further, since the contact area of the boss portion 29 with the front plate portion 22a of the door outer plate 22 can be reduced, the front plate portion 22 is contracted with the contraction of the foamed heat insulating material 26 after foaming.
Generation of distortion on the surface of a can also be suppressed.

A rib 3 is provided around the boss 29 of the cap 24.
1, the rib 31 not only serves as a guide when the lower edge of the door outer plate 22 is inserted into the groove 27 of the cap 24, but also when the foam insulating material 26 is filled with foam. It becomes a weir to reduce the momentum when the boss portion 29 advances toward the screw hole 30 side. In this case, it is preferable that the rib 31 be provided in a frame shape so as to cover the entire circumference of the boss portion 29.
Opening 31a is formed on the upper side of the
The opening 31a is covered with a tape 43. Further, since the auxiliary rib 32 intersecting with the rib 31 is also provided, it is possible to more reliably prevent the foamed heat insulating material 26 from entering the screw hole 30 side of the boss portion 29, and the boss portion 29 and the door outer plate can be prevented. The foamed heat insulating material 26 can be prevented from entering between the front plate 22a and the front plate 22a, and the foamed heat insulating material 26 can be prevented from leaking out of the screw insertion hole 36 of the front plate 22a.

Incidentally, if the foam heat insulating material 26 which easily shrinks in between the boss portion 29 and the front plate portion 22a of the door outer plate 22, the fixing force for fixing the handle 37 is significantly deteriorated. Therefore, the boss 31, the auxiliary rib 32, and the tape 43 have an effect of stabilizing the fixing force. Note that the tape 43 may be provided as needed.

Further, since the front plate 22a of the door outer plate 22 is sandwiched between the boss 29 and the handle 37, the foam heat insulating material 26 can be further prevented from leaking out of the screw insertion hole 36 to the outside. Become like Moreover, in this case, since the screw insertion hole 36 of the front plate 22a is a circular hole with its periphery closed, the contact area between the handle 37 and the front plate 22a can be increased, and
Can be fixed with a substantially equal pressure around the entire circumference of the screw 39. Thereby, even if the repeated stress of opening and closing the door is applied to the tightened portion of the screw 39, it is possible to prevent the tightening force from deteriorating as much as possible.

FIG. 7 shows a second embodiment of the present invention. The second embodiment differs from the first embodiment in the following points. That is, the front plate portion 22 of the door outer plate 22
The screw insertion part 45 in a is formed by a cutout part that is partially open instead of a circular hole.

The present invention is not limited to the above embodiments, but can be modified or expanded as follows. The boss portion 29 for attaching the handle 37 can be provided on the upper cap 23.

The present invention can be applied to a door in which the caps 23 and 24 are mounted not on the upper and lower sides of the door body 21 but on the left and right sides. Also, the door is not limited to the refrigerator door,
For example, it can be applied to a door of a storage room.

[0022]

As is clear from the above description, the following effects can be obtained according to the present invention. Claim 1
According to the storage door, the handle is screwed to the boss provided integrally with the cap that forms a part of the outer shell of the door. However, the number of parts can be reduced accordingly, and the cost can be reduced. Also,
Sufficient mounting strength can be ensured without relying on the adhesive force between the boss portion and the foam heat insulating material, and the occurrence of distortion on the door surface can be suppressed.

According to the storage door of the second aspect, by providing the rib around the boss of the cap, the assemblability between the cap and the door outer plate can be improved. The foam heat insulating material can be prevented from proceeding to the screw hole side of the boss as much as possible, and the foam heat insulating material can be prevented from leaking to the outside as much as possible.

According to the third aspect of the storage door, since the door outer plate is sandwiched between the boss portion and the handle, it is possible to further prevent the foamed heat insulating material from leaking to the outside.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view of a main part with a handle attached.

FIG. 3 is an enlarged vertical sectional side view of a main part along the line AA in FIG. 2;

FIG. 4 is a partial perspective view of a door outer plate.

FIG. 5 is a left plan view of the lower cap.

FIG. 6 is a front view of the left side of the cap.

FIG. 7 is a view corresponding to FIG. 4, showing a second embodiment of the present invention;

FIG. 8 is a perspective view of a door showing a conventional example.

FIG. 9 is an enlarged cross-sectional plan view along the line BB in FIG. 8;

[Explanation of symbols]

21 is a door body, 22 is a door outer plate, 22a is a front plate portion, 22
b is a bent plate portion, 23 and 24 are caps, 26 is a foam heat insulating material, 29 is a boss portion, 30 is a screw hole, 31 is a rib, 37 is a handle, 39 is a screw, and 41 is a decorative member.

Claims (3)

[Claims] 1. A door plate made of a metal plate having a rectangular shape and having a bent plate portion bent rearward on two opposing sides, left and right or up and down; A cap mounted on the remaining two sides where the bent plate portion does not exist; a door inner plate disposed on the back side of the door outer plate; and a space formed by the door outer plate, the cap, and the door inner plate. A foamed heat insulating material filled in the portion, a boss portion having a screw hole provided integrally with the cap, and a handle fixed to the boss portion by a screw screwed into the screw hole. Storage doors featured. 2. A cap extending around the boss portion of the cap in a direction intersecting with the door outer plate, and a tip end portion provided with a rib abutting on or near the back surface of the door outer plate. A storage door according to claim 1. 3. The storage door according to claim 1, wherein the door outer plate is sandwiched between the boss and the handle.