JP3162600B2 - Storage door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage door provided with a handle along one side of a surface.

[0002]

2. Description of the Related Art In general, a door of a storage, for example, a home refrigerator, is formed by filling a thin rectangular box-shaped outer shell with a heat insulating material such as urethane foam, and has a handle portion on the front side. Handle) is provided. FIG.
FIG. 11 to FIG. 11 show conventional examples in which the configuration of a handle portion in a door of this type of refrigerator is different from each other. That is,
In these doors, plastic caps 2 and 3 are attached to upper and lower portions of a metal plate outer plate 1 integrally forming a front surface and left and right side portions of an outer shell body, and a plastic inner plate is further attached to a back surface. It is provided and configured. Further, a gasket mounting sash is provided in the peripheral portion on the back surface side.

In FIG. 9, a lower portion of the left side of the outer plate 1 is cut out and a concave portion 4 is formed on the front side thereof.
The handle portion 6 is formed by fitting and attaching a plastic handle member 5 to the lower cap 3 so as to cover the notch. In the embodiment shown in FIG. 10, the outer panel 1 is provided in a form where the left side does not exist, and a concave portion 7 is formed on the left side of the front surface of the outer panel 1 so as to extend entirely in the vertical direction. The handle portion 9 is formed by fitting and attaching the plastic handle member 8 constituting the above to the upper and lower caps 2 and 3.

However, in the configuration of the handle 6 shown in FIG. 9, since the position where the handle 6 is provided with respect to the door is fixed, it is not always necessary to operate the door arranged at various heights for each model. A disadvantage arises in that it is not possible to provide the handle 6 at an optimum position that is easy to operate. In the configuration of the handle 9 shown in FIG. 10, the handle 9 becomes unnecessarily large for a large door, and the handle members 8 must be separately formed for doors having different vertical sizes. There is a problem that it does not work.

Therefore, in recent years, as shown in FIG.
A vertically long opening is formed in the left side of the front surface of the outer panel 1, and an arcuate concave portion 10 is formed on the right side of the opening.
By providing a handle member 11 so as to cover the opening, a handle portion 12 is configured.
According to this, the height position at which the handle portion 12 is provided can be set arbitrarily, and the handle member 11 can be shared for doors of various sizes.

[0006]

The prior art shown in FIG. 11 has a structure in which a handle 12 is provided on the front surface of the outer plate 1. It is desired that the handle 12 positioned in the middle is provided at a corner on the left side of the door, such as the handle 6 shown in FIG. 9 or the handle 9 shown in FIG.

In this case, it is conceivable to shift the handle portion 6 in FIG. 9 upward, or to contract the handle portion 9 in FIG. That is, the middle portion of the left side surface of the outer plate 1 is cut out, and an arcuate concave portion 10 is formed on the left side of the front surface so as to be adjacent to the notch portion, and the handle member is formed on the outer plate 1 so as to close the notch portion. 11 is attached.

However, in such a configuration, the handle member 11 is not supported by the upper and lower caps 2 and 3, and the outer plate 1 is attached to the cutout portion. However, when the user puts his hand on the handle member 11 and pulls it, the outer plate 1 may be deformed. In addition, due to the presence of the notch, there is a disadvantage that even when the concave portion 10 is formed, the vicinity of the concave portion 10 of the outer plate 1 is deformed and distortion or the like is likely to occur.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to satisfy a design requirement that a handle portion is provided along one side of a surface of a door.
It is an object of the present invention to provide a storage door capable of ensuring the strength of a handle.

[0010]

According to a first aspect of the present invention, there is provided a storage door having a thin box shape in which a surface and at least one peripheral surface continuous with at least one side thereof are formed of a metal outer plate. The outer shell body is filled with a heat insulating material and provided with a handle portion having a concave portion and a hand piece extending to a part of the surface portion of the concave portion along one side of the surface. A state in which the handle portion is provided on the outer plate, the opening extending in the direction in which the one side portion extends over the surface and the one peripheral surface, and a connecting portion of the outer plate is left on the one peripheral surface. And a substantially arcuate concave portion is formed so that an edge on the surface side of the opening is a chord, and a backing plate is arranged inside the opening of the outer plate, and And a handle member constituting the concave portion together with the concave portion, So as to block the side characterized in was constructed attached to the backing plate.

In this case, the edge of the concave portion of the outer plate may be formed in a stepped shape further depressed on the back side, and the step may be sandwiched between the handle member and the backing plate. 2
Invention). In addition, it is more effective if both ends of the edge of the concave portion of the outer plate are formed in a notch shape (the invention of claim 3). Further, a through hole may be formed in the backing plate to allow the passage of the undiluted solution of the heat insulating material (the invention of claim 4).

[0012]

According to the storage door of the first aspect of the present invention, an opening is formed in the outer plate over the surface of the outer shell and the peripheral surface, and is connected to the edge of the opening. While the depression is formed as described above, a patch plate is arranged inside the opening, and a handle member is attached so as to close the opening from the outside, so that a handle portion is provided along one side of the surface. Can be

[0013] At this time, the opening of the outer plate in which the handle member is disposed is formed so as to leave a connecting portion on one peripheral surface, so that the mounting strength of the handle member can be ensured. In addition, since the strength of the opening portion of the outer plate is higher than that in the case where there is no connecting portion, deformation and the like can be prevented even when forming the recessed portion.

In this case, the edge of the concave portion of the outer plate is formed in a stepped shape further depressed on the back surface side, and the step is sandwiched between the handle member and the backing plate. The door of the storage), the outer plate, the handle member, and the caul plate can be easily aligned at the time of attachment. The edge of the metal outer plate is no longer exposed in the concave portion of the handle portion, and the finger of the operator does not hit the edge of the outer plate. The handle member is positioned. However, if the depth of the recess of the step portion is set to be equal to or greater than the thickness of the handle member, the finger of the operator will not hit the edge of the handle member.

[0015] Further, the dent portion of the outer plate is generally formed by drawing, but if both ends of the edge of the dent portion are notched (the door of the storage of claim 3), the drawback during drawing can be reduced.
Elongation of the material in the outer portion of the concave portion of the outer plate divided by the cutout portion can be suppressed.

Further, in the case where the heat insulating material is provided by injecting the undiluted solution into the outer shell and reacting the same, the pad plate may obstruct the flow of the undiluted solution. If a through hole is formed to allow the passage (the door of the storage of claim 4), the undiluted solution of the heat insulating material passes through the through hole and smoothly spreads on both sides of the backing plate. Since it is connected on both sides of the through hole of the backing plate, the fixing strength between the backing plate and the heat insulating material is improved.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a door of a home refrigerator will be described below with reference to FIGS.

First, FIG. 3 shows a refrigerator door 2 according to this embodiment.
1 is shown from the front, and a door 21 is formed by filling a heat insulating material 23 (see FIG. 1) made of, for example, urethane foam into an outer shell 22 having a rectangular box shape having a thin front and rear side as a whole. It is configured. In this case, the heat insulating material 23
In a state where the outer shell 22 is housed in a foaming jig, a necessary amount of a urethane stock solution is injected into the inside of the foaming jig, thereby foaming and hardening the inside. The door 21 is supported on the right side of the refrigerator via a hinge so as to open and close the refrigerator compartment.

The outer shell 22 is, for example, an outer plate 2 made of a steel plate.
4. Upper and lower caps 25 and 26, both made of plastic, and a sash 27 for attaching a plastic gasket
(See FIG. 1, FIG. 4, etc.), back paper 28 made of kraft paper (see FIG. 1), and the like. Although not shown, a magnet gasket is mounted on the gasket mounting sash 27.
A plastic inner plate is further attached to the back of the back paper 28.

The outer plate 24 constitutes the front surface (surface) of the outer shell 22 (door 21) by bending a steel plate at the left and right portions, and integrally forms the left and right side surfaces of the peripheral surface. To be configured. As shown in FIG.
The left side surface, which is one peripheral surface of the left and right side surfaces, is represented by reference numeral 24a. Further, the outer plate 24 has an insertion piece 24b (FIG. 4) bent at substantially right angles from the rear ends of the left and right side surfaces.
Etc.) are provided integrally. The upper cap 25
The lower cap 26 is attached to the upper side and the lower side of the outer plate 24, respectively, and constitutes the upper and lower surfaces of the outer shell 22 (door 21).

The gasket mounting sash 27
Are provided in a rectangular frame shape as a whole along the periphery of the back surface of the outer shell 22 (door 21). As shown in FIGS. 1 and 4, the gasket mounting sash 27 has a gasket mounting portion 27a having a substantially U-shaped cross section, and an insertion piece 24b of the outer plate 24 is provided on the upper portion (front side). It has an insertion groove 27b to be inserted, and further has a flange portion 27c extending inward from the mounting portion 27a. The back paper 28 has an inlet (not shown) for the urethane stock solution, and is bonded to the flange portion 27c.

In the middle of the left side, which is one side of the door 21, which is slightly lower, a handle 29 for opening and closing (mainly opening) the door 21 is arranged vertically along the left side. It is provided to extend. This handle 29
As shown in FIG. 1, roughly, a concave portion 29a into which an operator of the door 21 inserts a finger and a front surface of the concave portion 29a are provided so as to extend from the left side, and the operator performs a pulling operation. And a handpiece 29b for performing the following.
Hereinafter, the handle portion 29 will be described in detail with reference to FIGS.

The handle portion 29 forms an opening 30 and a depression 31 in the outer plate 24 and the opening 3
For example, a plastic backing plate 32 and a handle member are attached to the zero portion. In the present embodiment, the handle member is composed of two members, a handle body 33 and a handle cover 34.

As shown in FIGS. 5 to 7, the opening 30 has a substantially rectangular shape extending vertically along the left side of the outer shell 22, and is provided between the front surface of the outer plate 24 and the left side surface 24a. So that the left side surface 24 of the outer plate 24 is formed.
The connecting portion 24c where the material of the outer plate 24 is continuous on the rear side of the portion a is formed. In the present embodiment, as shown in FIG. 7 and the like, the upper and lower ends of the right edge of the opening 30 are cut out so as to protrude to the right, and this portion is formed as cutouts 30a, 30a. Have been.

The recess 31 is formed in a bow shape on the right side of the opening 30 on the front surface of the outer plate 24 such that its right edge is a chord, and gradually becomes deeper toward the opening 30. It is recessed so as to form a spherical shape such that the vertical center is the deepest. In this embodiment,
As shown in FIG. 2, FIG. 6, etc., the left edge of the recess 31 located between the notches 30a, 30a is further recessed in a stepped shape on the back side (lower side in the figure). It has been. The depth of the step 31a is set slightly larger than the thickness of the handle body 33 described later.

In forming such an outer plate 24, as shown in FIG. 7, an opening 30 is punched and formed in the original plate of the outer plate 24, and the right side of the opening 30 is taken along the two-dot chain line a. The recessed portion 31 is formed by drawing, and further formed into a stepped shape along the two-dot chain line b to form a stepped portion 31a. Then, the insertion piece 24b and the left side surface 24a are formed by bending the respective portions at substantially right angles (in a state where the corners are rounded) along the two-dot chain lines c and d, respectively.

On the other hand, as shown in FIGS. 1 and 2, the backing plate 32 has a length larger than the opening 30 and is disposed on the back side across the recess 31 and the opening 30. The receiving surface has a substantially L-shaped plate shape integrally having a receiving wall portion and a falling wall portion extending downward from the left side of the receiving surface portion. As shown in FIG. 2, the receiving surface portion is formed with a receiving portion 32a having a curved surface and a step so as to follow the back surface of the edge portion (including the step portion 31a) of the recess 31.

Further, screw holes 32b, 32b are formed in portions facing both ends of the opening 30, respectively.
Further, the falling wall portion has an engaging hole 32c formed at the center thereof and a plurality of through holes 32d positioned at both sides thereof to allow the passage of the urethane stock solution.
Are formed. The tip end (the lower end in FIG. 1) of the falling wall portion comes into contact with the gasket mounting sash 27 and is partially locked.

The handle main body 33 has an elongated shape so as to be fitted closely to the opening 30.
The cross section has a curved surface portion 33a curved in a substantially U-shape with a horizontal orientation. As shown in FIG. 1, the inner surface (right side in FIG. 1) of the curved surface portion 33a constitutes a handle piece 29b of the handle portion 29, and also forms a concave portion 29a together with the concave portion 31 of the outer plate 24. It has become.

Outside the curved surface portion 33a (left side in FIG. 1), screw insertion portions 33b and 33 are located at both ends.
b (see FIG. 2) are integrally provided, a plurality of curved ribs 33c are integrally provided therebetween, and furthermore, an inner surface of the connecting portion 24c of the left side surface 24a of the outer plate 24 is addressed. The falling wall portion 33d is provided integrally. Further, an engagement claw 33e that engages with the engagement hole 32c of the backing plate 32 is integrally formed on the lower surface side of the curved surface portion 33a in FIG.

Such a handle body 33 is fitted into the opening 30 from the front side in a state where the backing plate 32 is arranged inside the opening 30 of the outer plate 24. At this time,
The engaging claw 33e is engaged with the engaging hole 32c of the backing plate 32, and the self-tapping screws 35, 35 are tightened into the screw holes 32b, 32b of the backing plate 32 through the respective screw insertion portions 33b, 33b. Thereby, the handle main body 33 is fixed to the backing plate 32. Further, at this time, the stepped portion 31a of the concave portion 31 of the outer plate 24 is connected to the lower surface of the curved surface portion 33a of the handle main body 33 and the backing plate 32.
Of the handle body 33 and the backing plate 32 are fixed to the outer plate 24.

After the handle main body 33 is mounted, a handle cover 34 is mounted on the surface of the handle main body 33. The handle cover 34 is formed in a curved plate shape so as to cover the entire front side of the handle main body 33, and an engagement claw 34 a that engages with an engagement hole 33 f (see FIG. 2) formed in the handle main body 33.
Is configured.

The handle cover 34 is provided with the rib 33
c, and is wrapped around a portion of the connecting portion 24c of the outer plate 24 so that the handle body 3
Fixed to 3. Thus, the handle cover 34 is provided so as to extend from the left side surface 24a of the outer plate 24 to the front surface,
Thus, the handle 29 is configured. The handle cover 34 is attached after the foaming process of the heat insulating material 23 in the process of assembling the door 21.

In the above configuration, the handle portion 29 can meet the design requirement of being provided along the corner on the left side of the door 21. Opening 3
By simply changing the height position at which the recesses 31 and 0 are provided, the height position at which the handle portion 29 on the left side of the door 21 can be freely changed.
Of course, the contact plate 32 and the handle members 33 and 34 can be shared.

At this time, since the connecting portion 24c is left on the left side surface 24a in the opening portion 30 of the outer plate 24 where the handle portion 29 is provided, the handle member (handle A sufficient mounting strength of the main body 33 and the handle cover 34) can be ensured, and deformation of the outer plate 24 can be prevented. Also, since the insertion piece 24b of the outer plate 24 is not cut off in the middle, the gasket mounting sash 27
Can be easily inserted into the insertion groove 27b, and the mounting strength of the gasket mounting sash 27 can be increased.

Since the connecting portion 24c is provided on the outer plate 24, the strength of the opening 30 of the outer plate 24 is higher than when the connecting portion 24c does not exist.
When drawing is formed, deformation of the outer plate 24 can be prevented. In this case, as shown in FIG. 8, the notch 3 opened at the side edge without providing the connecting portion 24c to the plate member 36.
In the case of 6a (a), the material is easily pulled and deformed due to drawing in the plate 36 (b), but in the present embodiment, such deformation can be prevented. is there. Moreover, in the present embodiment, the cutouts 30a, 30a are provided at both ends of the recessed portion 31 of the outer plate 24, whereby the elongation of the material of the outer portion can be suppressed, and the occurrence of distortion and the like can be effectively prevented. It can be prevented.

A step 31a slightly deeper than the thickness of the curved surface 33a of the handle body 33 is formed at the edge of the recess 31 of the outer plate 24, and the step 31a is
3 between the curved surface portion 33a and the receiving portion 32a of the backing plate 32, the edge of the outer plate 24 made of steel plate is not exposed in the concave portion 29a of the handle portion 29, and the operator's finger Can be prevented from touching the edge thereof, and the operator's finger is
No longer strikes the edge. Further, the positioning at the time of assembling the backing plate 32 and the handle main body 33 can be easily performed by the step portion 31a.

Further, in this embodiment, the through holes 32d are formed in the backing plate 32 to allow the passage of the stock solution (urethane stock solution) of the heat insulating material 23. Therefore, in the foaming step, the urethane stock solution of the heat insulating material is used. As a result, the heat insulating material 23 can be spread to both ends of the outer shell 22 and smoothly spread to both sides of the backing plate 32 through the 32d, and the bonding strength between the backing plate 32 and the heat insulating material 23 is improved. As a result, the strength of the handle 29 can be further improved.

In this embodiment, the handle member is composed of the handle body 33 and the handle cover 34, and the handle cover 34 is attached after the foaming process. A slight amount (handle cover 34)
Even if there is a swelling situation, the foaming process can be executed in a flat state without such swelling in the outer shell 22. As a result, it is not necessary to form a concave portion in the foaming jig, the structure of the foaming jig can be simplified or shared, and the surface of the handle member can be prevented from being damaged by the foaming jig. It can be prevented.

As described above, according to the present embodiment, the handle portion 2
9 is provided to connect the opening 30 of the outer plate 24 with the connecting portion 24c.
Is formed in such a state that the handle portion 29 is provided along the left side of the surface of the door 21 while satisfying the design requirement, while ensuring sufficient strength of the handle portion 29. Thus, a practical effect can be obtained.

In particular, in the present embodiment, the finger of the operator can be prevented from touching the edge of the outer plate 24 made of steel plate or the edge of the handle body 33 beforehand, and the step 31
The positioning at the time of assembling the backing plate 32 and the handle main body 33 can be easily performed by the a.
Oa can also prevent the occurrence of distortion or the like at the time of drawing of the depression 31 and can further obtain an advantage that the fixing strength between the backing plate 32 and thus the handle member and the heat insulating material 23 can be improved. Things.

The present invention is not limited to the above-described embodiment, and can be applied to, for example, a door provided with a handle at the right side, or at the upper side or the lower side.
In addition, the handle body may be an integral body, and may be applied to not only a refrigerator but also a refrigerator or a freezer, etc. is there.

[0043]

As apparent from the above description, the present invention has the following excellent effects. That is, according to the door of the storage of claim 1, the handle portion is connected to the outer plate, the opening extending in the direction in which one side extends over the surface and one peripheral surface, and the outer plate is connected to the outer plate. While forming in a state where the part is left, a concave portion is formed in a substantially arcuate shape so that the edge on the surface side of the opening is a chord, and a backing plate is arranged inside the opening of the outer plate, Since the handle member, which constitutes the handle piece and constitutes the concave portion together with the concave portion, is attached to the backing plate so as to close the opening from the outside, the handle portion is provided along one side of the surface of the door. The strength of the handle can be ensured while satisfying the design requirements.

In this case, the edge of the recessed portion of the outer plate is formed in a stepped shape further recessed on the back side, and the stepped portion is sandwiched between the handle member and the backing plate. Door of the storage), the outer plate and the handle member and the caul plate can be easily aligned at the time of attachment, and the finger of the operator is prevented from touching the edge of the outer plate. Can be.

Further, if both ends of the edge of the recess are cut out (the door of the storage of claim 3), distortion of the material of the outer portion of the recess of the outer plate during drawing is prevented. Can be prevented. Further, by forming a through hole for allowing the passage of the stock solution of the heat insulating material (the door of the storage in claim 4), the stock solution of the heat insulating material can smoothly spread to both sides of the backing plate. The fixing strength between the plate and the heat insulating material can be improved.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention, which is taken along the line AA of FIG.
Enlarged cross-sectional view along the line

FIG. 2 is an exploded perspective view showing a state in which a handle member and a backing plate are attached to an outer plate.

FIG. 3 is a front view of a refrigerator door.

FIG. 4 is a cross-sectional view of a sash portion for mounting a gasket.

FIG. 5 is a front view of an outer panel.

FIG. 6 is a transverse sectional view taken along the line BB of FIG. 5;

FIG. 7 is a plan view showing a state before the outer plate is bent;

FIG. 8 is a diagram showing a state in which deformation occurs when there is no connecting portion for comparison with the embodiment.

FIG. 9 is a diagram corresponding to FIG. 3 showing a conventional example.

FIG. 10 is a diagram corresponding to FIG. 3 showing another conventional example.

FIG. 11 is a diagram corresponding to FIG.

[Explanation of symbols]

In the drawing, 21 is a door, 22 is an outer shell, 23 is a heat insulating material, 24
Is an outer plate, 24a is a left side surface (one peripheral surface), 24c is a connecting portion, 29 is a handle portion, 29a is a concave portion, 29b is a hand piece, 30 is an opening portion, 30a is a cutout portion, 31 is a recessed portion, 3
1a is a stepped portion, 32 is a backing plate, 32d is a through hole, 33 is a handle body (handle member), and 34 is a handle cover (handle body).

Claims (4)

(57) [Claims] 1. A thin box-shaped outer shell made of a metal outer plate having a surface and at least one peripheral surface connected to at least one side thereof is filled with a heat insulating material. A hand portion having a recess and a hand piece extending to a part of the surface portion of the recess along the one side portion, wherein the hand portion is provided on the outer plate, And an opening extending in the direction in which the one side portion extends and straddling the one peripheral surface, in a state where a connection portion of an outer plate is left in the one peripheral surface, and a front edge of the opening is stringed. A concave portion is formed in a substantially arcuate shape so that a backing plate is disposed inside the opening of the outer plate, and the handle member constitutes the handpiece and constitutes the concave portion together with the concave portion. A configuration in which the opening is attached to the backing plate so as to close the opening from the outside. Storage doors characterized by the following. 2. An edge portion of the hollow portion of the outer plate is formed in a stepped shape further depressed on the back surface side, and the step portion is sandwiched between the handle member and the backing plate. A storage door according to claim 1. 3. An end portion of an edge of a dent portion of the outer plate is formed in a notch shape.
Storage door as described. 4. The storage door according to claim 1, wherein the backing plate is formed with a through-hole for allowing the undiluted solution of the heat insulating material to pass therethrough.