JP6704468B2 - refrigerator - Google Patents

Description

The present invention relates to a refrigerator, and more particularly to a refrigerator door structure.

Conventionally, a steel-made revolving door is used, and a resin part having a concave shape is used for a handle for opening and closing the revolving door, and the resin part is provided on the front part of the revolving door. There is a refrigerator having an embedded structure (for example, see Patent Document 1).

JP 2004-163100 A

The handle portion of the refrigerator door is a portion that the user touches with the hand when opening and closing the door, and is a portion that the user most frequently touches in the refrigerator. However, if the handle part is made of resin parts, when the user's hand touches the resin parts when the door is opened and closed, the user feels the high quality of the product due to the tactile feel of the resin parts. It may be difficult to feel the feeling and profoundness, and the product may have an inexpensive image.

The present invention has been made to solve the above problems, and when the user's hand touches the handhold when opening and closing the door, the user feels a sense of luxury and solidity in the product. It provides a feeling of refrigerator.

A refrigerator according to the present invention includes a heat-insulating box body having an opening, and a box-shaped door provided so as to open and close the opening of the heat-insulating box body, and the door constitutes a front wall portion of the door. The inner surface member that forms the surface facing the front wall portion and forms the rear wall portion of the door, and the one end portion in the width direction of the door that is provided between the steel plate and the inner surface member. And a resin component that forms a part of the side wall of the door, and the steel plate is bent toward the inner surface material at one end in the width direction of the door to form an intermediate rear wall facing the front wall. The intermediate rear wall portion constitutes a handle portion on which the user puts his/her finger when opening/closing the door, and the resin component has an intermediate front wall portion facing the intermediate rear wall portion of the steel plate and the depth of the door. An engaging portion that engages with the steel sheet is formed at an edge portion of the intermediate front wall portion located on the steel sheet side in the direction, and the engaging portion has a bifurcated inner edge portion and an outer edge portion, and the inner edge. Forming a groove between the outer edge and the outer edge, the tip of the inner edge and the tip of the outer edge are provided facing the front wall side, the steel plate, the edge of the steel plate is inserted into the groove By doing so, the resin part is engaged, and the edge part of the steel plate is engaged with the engaging part, so that the steel plate and the resin part are fixed .

The refrigerator according to the present invention has a structure in which the user touches the steel plate when the user opens and closes the door, because the claw portion that the user holds when opening and closing the door is formed of the steel plate. There is. Therefore, the user can feel the solid feeling and the high-class feeling of the refrigerator due to the feel of the finger when opening and closing the door.

It is a perspective view of the refrigerator concerning Embodiment 1 of the present invention. It is an exploded view of the refrigerator compartment door used for the refrigerator concerning Embodiment 1 of the present invention. It is an AA sectional view of the refrigerator compartment door shown in FIG. FIG. 4 is a partially enlarged view of the handle portion shown in FIG. 3. It is a partial expanded sectional view of a handle part of a refrigerator concerning Embodiment 2 of the present invention.

Embodiment 1.
1 is a perspective view of a refrigerator 1 according to Embodiment 1 of the present invention. The X axis shown in FIG. 1 shows the width direction of the refrigerator 1, the Y axis shows the depth direction of the refrigerator 1, and the Z axis shows the height direction of the refrigerator 1. More specifically, the refrigerator 1 will be described with the X1 side on the X axis as the left side, the X2 side as the right side, the Y1 side on the Y axis as the front side, the Y2 side as the rear side, the Z1 side on the Z axis as the upper side, and the Z2 side as the lower side. To do. In addition, the positional relationship (for example, the vertical relationship) between the constituent members in the specification is, in principle, when the refrigerator 1 is installed in a usable state.

The refrigerator 1 shown in FIG. 1 is a cold-cooling type refrigerator, and includes a heat insulating box body 2 having an opening composed of an outer box made of steel plate and an inner box made of resin. The heat insulating box 2 is configured by foaming and filling a heat insulating material between an outer box and an inner box. Further, in the accommodation space inside the heat insulating box 2, five kinds of storage chambers of a refrigerating room 3, an ice making room 4, a switching room 5, a freezing room 6 and a vegetable room 7 are formed for each opening. The refrigerating room 3, the ice making room 4, the switching room 5, the freezing room 6 and the vegetable room 7 are partitioned by partitioning members and insulated. In addition, the position of each storage room is arbitrary, for example, the vegetable compartment 7 may be arrange|positioned in the position of the freezing compartment 6, and the freezing compartment 6 may be provided in the position of the vegetable compartment 7. Further, the type and number of storage rooms provided in the refrigerator 1 are not limited to these.

The refrigerating room 3 is a storage room which is set in a refrigerating temperature zone (for example, about 3 to 5° C.) and stores an object to be cooled such as food. The ice making chamber 4 is a storage chamber in which an ice making machine is installed and which stores ice produced by the ice making machine. The switching chamber 5 is a storage chamber in which the temperature zone can be switched according to the application. The freezing chamber 6 is a storage chamber which is set in a freezing temperature zone of less than 0° C. (for example, −18° C. or lower) and which freezes and stores stored products. The vegetable compartment 7 is a storage compartment which is set in a refrigerating temperature zone (for example, about 3 to 7° C.) whose set temperature is higher than that of the refrigerating compartment 3, and which is particularly suitable for refrigerating vegetables.

The refrigerator 1 has a box-shaped door provided so as to open and close the opening of the heat insulating box 2. Specifically, in each of the refrigerating compartment 3, the ice making compartment 4, the switching compartment 5, the freezing compartment 6 and the vegetable compartment 7, the refrigerating compartment door 8 and the refrigerating compartment door 9, the ice making compartment door 10 and the switching compartment door 11 respectively. The freezer compartment door 12 and the vegetable compartment door 13 are provided so as to open and close the opening of each storage compartment. By opening and closing these doors, the storage compartments of the refrigerating compartment 3, the ice making compartment 4, the switching compartment 5, the freezing compartment 6 and the vegetable compartment 7 are opened to the external space or cut off from the external space. The refrigerating compartment door 8 and the refrigerating compartment door 9 are double door type rotary doors, and the ice making compartment door 10, the switching compartment door 11, the freezing compartment door 12 and the vegetable compartment door 13 are drawer type doors. The door of the refrigerator compartment 3 may be a single door type rotary door instead of the double door type door.

FIG. 2 is an exploded view of a refrigerator compartment door used in the refrigerator according to Embodiment 1 of the present invention. FIG. 3 is a cross-sectional view of the refrigerating compartment door shown in FIG. The refrigerating compartment door 9 forming the door of the refrigerating compartment 3 will be described with reference to FIGS. 2 and 3. Since the basic structure of the refrigerating compartment door 8 is the same as that of the refrigerating compartment door 9, the description of the refrigerating compartment door 8 will be omitted. The refrigerating compartment door 9 is a box-shaped door and, as shown in FIG. 3, forms a steel plate 20 constituting the front wall portion 9a of the refrigerating compartment door 9 and a surface facing the front wall portion 9a, thereby forming a refrigerating compartment door 9a. The inner surface member 21 that constitutes the rear wall portion 9c of the door 9 is provided. Further, the refrigerating compartment door 9 is provided between the steel plate 20 and the inner surface member 21 at one end portion 9e in the width direction (X-axis direction) of the refrigerating compartment door 9 and is provided on the side wall portion 9d of the refrigerating compartment door 9. And a resin component 24 forming a part thereof. Further, as shown in FIG. 2, the refrigerating compartment door 9 includes an upper cap 22 and a lower cap 23 which are arranged on the refrigerating compartment door 9 so as to sandwich the steel plate 20 in the vertical direction. Further, as shown in FIG. 3, the refrigerating compartment door 9 includes an inside of the refrigerating compartment door 9 including a steel plate 20, an inner surface material 21, an upper cap 22, a lower cap 23, and a resin component 24. A foam insulating material 25 such as urethane foam that fills the space is provided. Although the foam heat insulating material 25 is provided in the space in FIG. 3, a vacuum heat insulating material may be used together with the foam heat insulating material 25 or in place of the foam heat insulating material 25.

As shown in FIG. 3, the steel plate 20 is a metal plate that has been subjected to a plurality of bending processes. The steel plate 20 has a front wall portion 20a forming a front wall portion 9a of the refrigerating compartment door 9 and a rear wall portion 20c forming a part of a rear wall portion 9c of the refrigerating compartment door 9. Further, the steel plate 20 is bent toward the inner surface material 21 side in the depth direction (Y-axis direction) of the refrigerating compartment door 9 at one end portion 9e in the width direction (X-axis direction) of the refrigerating compartment door 9 to be bent to the front wall portion. An intermediate rear wall portion 20e that faces 9a is formed. Further, the steel plate 20 is extended from the front wall portion 20a toward the rear wall portion 20c at the end portion 9f on the rotation shaft 27 side in the width direction (X-axis direction) of the refrigerating compartment door 9, and the front wall portion 20a. And a rear wall portion 20c are connected to each other to have a side wall portion 20b which constitutes a side wall portion 9b of the refrigerator compartment door 9. Further, the steel plate 20 extends from the front wall portion 20a toward the inner surface material 21 side at the end portion 9e in the width direction (X-axis direction) of the refrigerating compartment door 9 and is connected to the intermediate rear wall portion 20e to be refrigerated. It has a side wall portion 20d that constitutes a part of the side wall portion 9d of the chamber door 9.

The steel plate 20 is bent toward the inner surface member 21 to form an intermediate rear wall portion 20e facing the front wall portion 9a. The intermediate rear wall portion 20e is hooked by the user when the refrigerating compartment door 9 is opened and closed. The handle portion 26 is configured. The handle portion 26 has one end portion 9e in the width direction (X axis direction) of the refrigerating compartment door 9 from the upper end portion 9g1 to the lower end portion in the height direction (Z axis direction) of the refrigerating compartment door 9 shown in FIG. It is formed so as to extend to 9 g 2. Note that the handle portion 26 may be formed continuously on all of the end portions 9e of the refrigerating compartment door 9, or may be formed on a part of the end portions 9e.

As shown in FIG. 3, the steel plate 20 does not necessarily have to be formed so as to be clearly divided into three constituent parts of a front wall portion 20a, a side wall portion 20d, and an intermediate rear wall portion 20e. These may be integrally formed. Further, in FIG. 3, the front wall portion 20a is formed in a gentle curved shape in the horizontal cross-sectional shape so as to project in the depth direction (Y-axis direction) of the refrigerator 1 from the end portion 9f to the end portion 9e. .. However, the front wall portion 20a may be one that forms the front wall of the refrigerating compartment door 9. Therefore, the shape of the front wall portion 20a may be a flat shape that does not deform between the end portions 9e and 9f, or an uneven shape between the end portions 9e and 9f. May be included.

The upper cap 22 shown in FIG. 2 is disposed on the upper end side of the steel plate 20 and in the width direction (X-axis direction) of the refrigerating compartment door 9. Further, the lower cap 23 is arranged on the lower end side of the steel plate 20 in the width direction (X-axis direction) of the refrigerating compartment door 9. In the refrigerator 1, the refrigerator compartment door 9 provided with the two caps, the upper cap 22 and the lower cap 23, has been described as an example, but the present invention is not limited to this. A mode in which a door cap is provided on either one may be adopted.

As shown in FIG. 3, the inner surface member 21 forms a surface facing the front wall portion 9a of the refrigerating compartment door 9 and constitutes a rear wall portion 9c of the refrigerating compartment door 9. In other words, the inner surface member 21 is provided so as to face the front wall portion 20a of the steel plate 20 via the foamed heat insulating material 25. The inner surface member 21 engages with the rear wall portion 20c of the steel plate 20 at the connection end portion 21a which is one end in the width direction (X axis direction). Further, as shown in FIG. 2, an upper cap 22 is arranged on the upper side of the inner surface member 21, and a lower cap 23 is arranged on the lower side. It should be noted that, for example, shelves, shelf receivers, fixing portions, etc., which are mounted or formed on the inner surface member 21 as necessary, are omitted.

As shown in FIG. 3, the resin component 24 is provided in the depth direction (Y-axis direction) of the refrigerating compartment door 9 and constitutes a part of the side wall portion 9d of the refrigerating compartment door 9. The resin component 24 has an intermediate front wall portion 24a facing the intermediate rear wall portion 20e of the steel plate 20. The intermediate front wall portion 24a constitutes a part of the side wall on the front surface side of the refrigerating compartment door 9. Further, the resin component 24 has a side wall portion 24b extending from the intermediate front wall portion 24a toward the inner surface member 21 side and facing the side wall portion 20b of the steel plate 20. Further, the resin component 24 has a rear wall portion 24c forming a part of the rear wall portion 9c of the refrigerating compartment door 9. The rear wall portion 24c engages with the inner surface material 21 at a connection end portion 21b which is an edge portion on the side opposite to the connection end portion 21a in the width direction (X-axis direction) of the inner surface material 21.

FIG. 4 is a partially enlarged view of the handle portion shown in FIG. The resin component 24 has an engaging portion 24f that engages with the steel plate 20 at an edge portion 24k located on the steel plate 20 side in the depth direction (Y-axis direction) of the refrigerating compartment door 9. More specifically, the resin component 24 has an intermediate side wall portion 24e bent from the intermediate front wall portion 24a to the front wall portion 9a side, and is engaged with an edge portion 24k of the intermediate side wall portion 24e on the front wall portion 9a side. A joining portion 24f is formed. Further, in the resin component 24, the connecting portion between the intermediate front wall portion 24a and the intermediate side wall portion 24e is configured by the curved portion 24d that is gently bent. The surface of the connecting portion between the intermediate front wall portion 24a and the intermediate side wall portion 24e on the side of the handle portion 26 is formed by a gentle curved surface 24d1. However, the connecting portion between the intermediate front wall portion 24a and the intermediate side wall portion 24e does not necessarily have to be formed to have a gentle curved surface. For example, the connecting portion between the intermediate front wall portion 24a and the intermediate side wall portion 24e does not have the curved portion 24d, but the intermediate front wall portion 24a and the intermediate side wall portion 24e are connected at an angle of 90 degrees or around 90 degrees. May be.

The engagement portion 24f is a portion that fixes the resin component 24 and the steel plate 20 by engaging the edge portion 20g of the steel plate 20. The engagement portion 24f is formed on the edge portion 24k of the resin component 24, and is formed from the upper end portion to the lower end portion of the resin component 24 in the height direction (Z-axis direction) of the refrigerator 1. The engaging portion 24f may be formed continuously with all the edge portions 24k of the resin component 24, or may be formed with a part of the edge portion 24k.

The engaging portion 24f has a bifurcated inner edge portion 24g and an outer edge portion 24h, and forms a groove portion 24i between the inner edge portion 24g and the outer edge portion 24h. The steel plate 20 is engaged with the resin component 24 by inserting the edge portion 20g of the steel plate 20 into the groove portion 24i. The engaging portion 24f is formed such that the tip end portion 24j1 of the inner edge portion 24g and the tip end portion 24j2 of the outer edge portion 24h face the width direction (X-axis direction) of the refrigerating compartment door 9. In the state where the steel plate 20 is inserted into the groove 24i of the engaging portion 24f, the outer edge portion 24h is arranged on the front wall portion 9a side and the inner edge portion 24g is arranged on the intermediate front wall portion 24a side.

The length of the protruding portion B of the outer edge portion 24h from the finger side wall surface 24e1 of the intermediate side wall portion 24e touched by the tip of the finger to the tip end portion 24j2 of the outer edge portion 24h is determined from the wall surface 24e1 of the intermediate side wall portion 24e to the inner edge portion 24g. It is formed longer than the length of the protruding portion A of the inner edge portion 24g up to the tip portion 24j1. The inner edge portion 24g is preferably formed such that the length of the protruding portion A from the wall surface 24e1 of the intermediate side wall portion 24e to the tip portion 24j1 is 5 mm or less. In addition, it is desirable that the thickness of the inner edge portion 24g be formed such that the thickness C from the contact surface with the steel plate 20 to the opposite surface is 2 mm or less as a guide. It is desirable to make the thickness of the film as thin as possible.

When the steel plate 20 and the resin component 24 are engaged with each other, the refrigerating compartment door 9 has a concave shaped portion 28 formed by the intermediate rear wall portion 20e, the intermediate side wall portion 24e, and the intermediate front wall portion 24a. The concave portion 28 is an area in the refrigerating compartment door 9 into which a user can insert his/her finger when opening the refrigerating compartment door 9. The user can open the door by inserting a finger into the concave portion 28, hooking the finger on the handle portion 26, and pulling the refrigerator compartment door 9. The concave portion 28 is formed in the height direction (Z-axis direction) of the refrigerating compartment door 9 at one end 9e in the width direction (X-axis direction) of the refrigerating compartment door 9. The recessed portion 28, together with the handle portion 26, at the one end portion 9e in the width direction (X-axis direction) of the refrigerating compartment door 9 has an upper end portion 9g1 in the height direction (Z-axis direction) of the refrigerator 1 in FIG. To the lower end 9g2. The concave portion 28 may be formed continuously on the entire end 9e of the refrigerating compartment door 9 or may be formed on a part of the end 9e. Since the engaging portion 24f is formed on the side of the intermediate side wall portion 24e, which is the bottom side of the concave portion 28, the engaging portion 24f is in front of the refrigerator 1 in the state where the refrigerating compartment door 9 is closed. It is arranged at a position that is not directly visible to the user on the wall 9a side.

As shown in FIG. 4, the refrigerating compartment door 9 operates the refrigerator 1 on the intermediate front wall portion 24a located on the back side of the hand when the user holds the handhold portion 26 of the refrigerating compartment door 9. The operation function component 31 of is provided. The operation function component 31 is built in the inner space 30 of the door structure on the back side of the intermediate front wall portion 24a, and, for example, a display component such as a liquid crystal display, a button type or a touch panel type operation switch, etc. are provided in the intermediate front wall portion 24a. ing. Such a structure is also applicable to the refrigerator compartment door 8. The operation function component 31 may be arranged arbitrarily, and the refrigerator compartment door 9 may not be provided with these components.

As described above, in the refrigerator 1, since the handle portion 26 that the user uses to open and close the refrigerating compartment door 9 is formed of the steel plate 20, the user opens the refrigerating compartment door 9 of the refrigerator 1. Sometimes, the finger touches the steel plate 20. Therefore, the user can feel the solid feeling and the high-class feeling that the refrigerator 1 has from the touch of the fingertip when the refrigerator compartment door 9 is opened and closed. Further, in the engaging portion 24f between the steel plate 20 and the resin component 24, the length of the protruding portion A of the inner edge portion 24g from the finger side wall surface 24e1 of the intermediate side wall portion 24e touched by the finger tip to the tip portion 24j1 is 5 mm. It is formed below. Therefore, in the refrigerator 1, when the user puts his/her finger in the concave portion 28 and puts his/her finger on the handle portion 26 in order to open the refrigerating compartment door 9, the finger pad does not touch the resin part. It has a structure that can be touched by metal. Furthermore, the thickness of the inner edge portion 24g is formed such that the thickness C from the contact surface with the steel plate 20 to the opposite surface is 2 mm or less. Therefore, when the user opens the refrigerating compartment door 9, the refrigerator 1 has a structure in which the metal of the refrigerator can be touched by the metal of the finger without touching the resin parts. As a result, the user can feel the solid feeling and the high-grade feeling of the metal from the refrigerator 1. Further, when the user inserts his/her finger into the concave portion 28 of the refrigerating compartment door 9, due to the configuration of the engaging portion 24f, the nail may be inserted between the steel plate 20 and the resin component 24. It is also excellent in safety in use.

Further, the outer edge portion 24h of the engagement portion 24f is formed to have a longer length from the wall surface of the intermediate side wall portion to the tip portion than the inner edge portion 24g. Therefore, when the user pulls the refrigerating compartment door 9 by putting his/her finger on the handhold portion 26 to open the refrigerating compartment door 9, the outer edge portion 24h has a structure that supports the intermediate rear wall portion 20e of the steel plate 20 from behind. Become. As a result, the outer edge portion 24h can enhance the engagement strength of the engagement portion 24f, and can enhance the rigidity of the refrigerating compartment door 9. Further, in the curved portion 24d, the curved surface 24d1 on the side of the handle portion 26 is formed to be a gentle curved surface. Therefore, when the user inserts his/her finger in the concave portion 28, the finger moves along the curved surface, so that the finger does not hit the resin component 24 strongly and the finger smoothly contacts the handle portion 26. Be guided.

Further, in the conventional refrigerator, a door having a structure in which the concave shape of the handle portion is provided in the vertical direction is provided, and the engagement between the steel plate and the resin component is performed on the front surface portion of the door. However, since the engaging portion between the steel plate and the resin component is provided at a position that can be easily seen by the user, the design is impaired. Further, as a countermeasure against this, a plated component or a hot stamp is often used in the engaging portion on the resin component side, which may cause an increase in cost. Further, in the conventional refrigerator, when the foam heat insulating material filling the inside of the door leaks at the engaging portion between the steel plate and the resin member forming the front wall of the door, it solidifies from the leaking portion of the foam heat insulating material. It is necessary to remove the foam insulation material. However, it is difficult to remove all of the leaked foam insulation, and since the engaging portion is provided at a position easily visible to the user, if the appearance of the leaked portion of the foam insulation is bad, The door will be scrapped.

On the other hand, in the refrigerator 1, in the state where the door is closed, the engagement portion 24f is arranged at a position that is not directly visible to the user on the front wall portion 9a side of the refrigerator 1. Therefore, the refrigerator 1 does not impair the design even if the engaging portion 24f is provided. Further, in the refrigerator 1, the engaging portion 24f is arranged at a position on the front wall portion 9a side of the refrigerator 1 which is not directly visible to the user. Therefore, even if the foamed heat insulating material leaks, the leaked foamed The heat insulating material does not make the refrigerator compartment door 9 look bad. Therefore, it is possible to suppress the outflow of unsightly products, and further, it is possible to reduce the waste of the products, so that the yield is improved and the productivity is improved.

Further, in the structure of the door of the refrigerator, in order to assemble the resinous component forming a part of the door to the steel plate, it may be necessary to provide another component for connecting the resinous component and the steel plate. When the door has such a structure, it is necessary to seal the connection between the resin component and the steel plate so that the foam insulation that is injected inside the door does not leak, which increases the manufacturing man-hour and manufacturing cost. Resulting in.

On the other hand, in the refrigerator 1, the edge portion 20g of the steel plate 20 is inserted into the groove portion 24i of the resin component 24, and the steel plate 20 and the resin component 24 are engaged and fixed. Therefore, the resin component 24 and the steel plate 20 are tightly engaged with each other, and there is no need for a separate component for assembling the resin component 24 to the steel plate 20. Further, the resin component 24 and the steel plate 20 are tightly engaged with each other, and it is not necessary to seal the engaging portion between the resin component and the steel plate. As a result, the number of manufacturing steps and manufacturing cost of the refrigerator 1 can be suppressed.

In addition, since the handle part is repeatedly loaded when the door is opened and closed, if the handle part is made of resin, the wall thickness of the resin part is increased, the rib shape is added, and the strength reinforcement material is added. It is conceivable that the strength of the handle portion is secured by using an additional means such as disposing. When the door has such a structure, the adoption of the handle part of the resin component increases the manufacturing cost of the refrigerator.

On the other hand, in the refrigerator 1, the handle portion 26 is formed of the steel plate 20. Therefore, it is not necessary to secure the strength of the handle part such as increasing the thickness of the resin part, adding the rib shape, and further disposing the strength reinforcing material, and suppressing the manufacturing cost for providing these structures. it can. Further, since the handle portion 26 is formed of the steel plate 20, there is an advantage that the degradation of the handle portion 26 due to the repeated load is much less than that when the resin is used.

Further, in the structure of the door of the refrigerator, it is conceivable that a single steel plate is subjected to complicated bending to form a handle shape on the door. Further, it is conceivable that the handle portion of the door is formed of two steel plates. However, in the former refrigerator, since the bending process of the steel plate is complicated, the dimensional variation may be large. Therefore, in the former refrigerator, it may be difficult to match the bent steel plate with the resin caps arranged above and below the steel plate, which may deteriorate the workability of assembling the door or may deteriorate the workability of the door. is there. Further, in the former refrigerator, the equipment for manufacturing the refrigerator is limited because the steel sheet is subjected to complicated bending work, and the cost for the equipment also increases. Further, in the latter refrigerator, in order to engage the two steel plates, another engaging component for engaging the steel plates with each other is required. Therefore, the number of parts for manufacturing the door increases, and the workability of assembling the door deteriorates. Furthermore, in the latter refrigerator, more expensive steel plates are used as compared with general resins (for example, ABS resin), which increases the cost of procuring parts.

On the other hand, the refrigerator 1 can be formed of a single steel plate 20 to form the handle portion 26, and can also be formed to form the handle portion 26 or by engaging the engaging portion 24f. In order to do so, it is not necessary to subject the steel plate 20 to complicated bending work. Therefore, the refrigerator 1 can reduce the number of steps for bending the steel sheet, and does not require equipment for performing complicated bending on the steel sheet. Further, no separate engaging component for connecting the steel plates is required. As a result, the refrigerator 1 can suppress the material cost for manufacturing, the cost for equipment, and the manufacturing cost.

Further, in the structure of the door of the refrigerator, a laminated film or PET film decorated to enhance the design may be attached to the steel plate of the door, or a coating or printing process may be performed, and the steel plate of the door is more expensive. There are cases where it becomes a material. Therefore, in manufacturing the refrigerator 1, reducing the amount of the steel plate 20 used leads to cost reduction. In the refrigerating compartment door 9, the structure using the steel plate 20 is up to the handle portion 26, and the structure of the refrigerating compartment door 9 from there to the inner surface material 21 is configured by using the resin component 24. Since the refrigerator 1 suppresses the usage amount of the steel plate 20 which is an expensive material, the material cost can be suppressed.

Further, in the refrigerator 1, the operation function component 31 and the like can be arranged on the intermediate front wall portion 24a. Since the intermediate front wall portion 24a is made of resin, it is easy to provide the intermediate front wall portion 24a with the mounting shape of the operation function component 31 in the manufacturing process of the resin component 24. Therefore, the refrigerator 1 can eliminate the processing of the hole for attaching the operation function component 31 to the steel plate 20, and it is not necessary to add the component for attaching the operation function component 31 to the steel plate 20, and the refrigerator 1 Manufacturing cost can be suppressed.

Embodiment 2.
FIG. 5 is a partially enlarged cross-sectional view of the handle portion of the refrigerator according to Embodiment 2 of the present invention. Parts having the same configurations as those of the refrigerator shown in FIGS. 1 to 4 are designated by the same reference numerals, and their description will be omitted. The refrigerator according to the second embodiment of the present invention is different from the refrigerator according to the first embodiment of the present invention in the arrangement position of the engaging portion. The external view of the refrigerator 1A according to the second embodiment of the present invention is the same as the refrigerator 1 in FIG.

As shown in FIG. 5, refrigerating compartment door 9A is obtained by adding bending to steel plate 20 according to the first embodiment of the present invention. The steel plate 20 is bent at one end 9e in the width direction (X-axis direction) of the refrigerating compartment door 9 toward the inner surface material 21 side in the depth direction (Y-axis direction) of the refrigerating compartment door 9 to form a front wall portion 9a. The facing intermediate rear wall portion 20e is formed. Further, the steel plate 20 extends from the front wall portion 20a toward the inner surface material 21 side shown in FIG. 2 at the end portion 9e in the width direction (X axis direction) of the refrigerating compartment door 9 to form an intermediate rear wall portion 20e. It has a side wall portion 20d which is connected to and constitutes a part of the side wall portion 9d of the refrigerating compartment door 9.

The steel plate 20 is bent toward the inner surface member 21 to form an intermediate rear wall portion 20e facing the front wall portion 9a. The intermediate rear wall portion 20e is hooked by the user when the refrigerating compartment door 9 is opened and closed. The handle portion 26 is configured. The handle portion 26 has one end portion 9e in the width direction (X axis direction) of the refrigerating compartment door 9 from the upper end portion 9g1 to the lower end portion in the height direction (Z axis direction) of the refrigerating compartment door 9 shown in FIG. It is formed so as to extend to 9 g 2. Note that the handle portion 26 may be formed continuously on all of the end portions 9e of the refrigerating compartment door 9, or may be formed on a part of the end portions 9e. Further, the steel plate 20 does not necessarily have to be formed so as to be clearly divided into three constituent parts of a front wall portion 20a, a side wall portion 20d, and an intermediate rear wall portion 20e as shown in FIG. However, these may be integrally formed.

The steel plate 20 has a side wall portion 20f connected to the intermediate rear wall portion 20e and extending toward the inner surface member 21 side. The side wall portion 20f constitutes a part of the side wall portion 9d of the refrigerating compartment door 9, and constitutes a wall portion of a surface with which the tip of a finger hits when the user holds the handhold portion 26.

The resin component 24 is provided in the depth direction (Y-axis direction) of the refrigerating compartment door 9 and constitutes a part of the side wall portion 9d of the refrigerating compartment door 9. The resin component 24 has an intermediate front wall portion 24a1 that faces the intermediate rear wall portion 20e of the steel plate 20. The intermediate front wall portion 24a1 constitutes a part of the front side wall of the refrigerating compartment door 9. Further, the resin component 24 has a side wall portion 24b extending from the intermediate front wall portion 24a toward the inner surface member 21 side and facing the side wall portion 20b of the steel plate 20.

Further, the resin component 24 has an engaging portion 24f1 that engages with the steel plate 20 at an edge portion 24k1 located on the steel plate 20 side in the depth direction (Y-axis direction) of the refrigerating compartment door 9. More specifically, in the resin component 24, the engaging portion 24f1 is formed on the edge portion 24k1 of the intermediate front wall portion 24a1.

The engagement portion 24f1 is a portion that fixes the resin component 24 and the steel plate 20 by engaging the edge portion 20g of the steel plate 20. The engagement portion 24f1 is formed on the edge portion 24k1 of the resin component 24, and is formed from the upper end portion to the lower end portion of the resin component 24 in the height direction (Z-axis direction) of the refrigerator 1. The engaging portion 24f1 may be formed continuously with the entire edge portion 24k1 of the resin component 24, or may be formed with a part of the edge portion 24k1.

The engaging portion 24f1 has a bifurcated inner edge portion 24g1 and an outer edge portion 24h1, and forms a groove portion 24i1 between the inner edge portion 24g1 and the outer edge portion 24h1. The steel plate 20 is engaged with the resin component 24 by inserting the edge portion 20g of the steel plate 20 into the groove portion 24i1. The engaging portion 24f1 is provided with a tip portion 24j1 of the inner edge portion 24g1 and a tip portion 24j2 of the outer edge portion 24h1 facing the front wall portion 9a side. The outer edge portion 24h1 is located inside the space inside the refrigerating compartment door 9A configured by the steel plate 20, the inner surface material 21, the upper cap 22, the lower cap 23, and the resin component 24, and the inner edge portion 24g1. Are arranged so as to be located outside the space. Further, the outer edge portion 24h1 is formed to be longer than the inner edge portion 24g1 from the bifurcated base portion to the tip portion. The inner edge portion 24g1 is formed so that the surface on the side of the handle portion 26 is a gently curved surface in the connection portion 24g2 with the intermediate front wall portion 24a1. However, the connecting portion 24g2 does not necessarily have to be formed to have a gentle curved surface.

When the steel plate 20 and the resin component 24 are engaged with each other, the refrigerating compartment door 9A has a concave portion 28 formed by the intermediate rear wall portion 20e, the side wall portion 20f, and the intermediate front wall portion 24a1. The concave portion 28 is a region in the refrigerating compartment door 9A, into which a user can insert a finger when opening the refrigerating compartment door 9A. The user can open the door by inserting a finger into the concave portion 28, hooking the finger on the handle portion 26, and pulling the refrigerating compartment door 9A. The concave portion 28 is formed in the height direction (Z-axis direction) of the refrigerating compartment door 9A at one end 9e in the width direction (X-axis direction) of the refrigerating compartment door 9A. The concave portion 28, together with the handle portion 26, at the one end portion 9e in the width direction (X axis direction) of the refrigerating compartment door 9A, the upper end portion 9g1 in the height direction (Z axis direction) of the refrigerator 1 in FIG. To the lower end 9g2. The concave portion 28 may be formed continuously on all the end portions 9e of the refrigerating compartment door 9A, or may be formed on a part of the end portion 9e. Since the engaging portion 24f1 is formed on the side wall portion 20f side which is the bottommost side of the concave portion 28, the engaging portion 24f1 is the front wall of the refrigerator 1A when the refrigerating compartment door 9A is closed. It is arranged at a position that is not directly visible to the user on the side of the portion 9a.

The refrigerator compartment door 9A is provided with an operation function component 31 for operating the refrigerator 1 on the intermediate front wall portion 24a1 located on the back side of the hand when the user places his/her hand on the handle portion 26 of the refrigerator compartment door 9A. ing. The operation function component 31 is built in the inner space 30 of the door structure on the back side of the intermediate front wall portion 24a1, and a display component such as a liquid crystal display, a button type or a touch panel type operation switch, and the like are provided in the intermediate front wall portion 24a1. ing. Such a structure is also applicable to the refrigerator compartment door 8. The operation function component 31 may be arranged arbitrarily, and the refrigerator compartment door 9 may not be provided with these components.

As described above, in the refrigerator 1A, since the handle portion 26 that the user holds when opening and closing the refrigerating compartment door 9A is formed of the steel plate 20, the user opens the refrigerating compartment door 9A of the refrigerator 1A. Sometimes, the finger touches the steel plate 20. Therefore, the user can feel the solid feeling and the high-class feeling that the refrigerator 1A has with the metal from the touch of the fingertip when the refrigerator compartment door 9A is opened and closed. Further, the engagement portion 24f1 is provided at the edge portion 24k1 of the intermediate front wall portion 24a1 located on the back side of the hand when the user puts his/her finger in the concave portion 28. Therefore, when the user puts his/her finger in the concave portion 28, the belly of the user's finger hits only the steel plate 20. Therefore, the refrigerator 1A has a structure in which when the user opens the refrigerating compartment door 9, the finger pad does not touch the resin component and can touch the metal. As a result, the user can feel the solid feeling and the high-grade feeling of the metal from the refrigerator 1A. Furthermore, when the user inserts his/her finger into the recessed portion 28 of the refrigerating compartment door 9A, the nail may be inserted between the steel plate 20 and the resin component 24 due to the configuration of the engaging portion 24f1. It is also excellent in safety in use.

Further, in the refrigerator 1A, in the state where the door is closed, the engagement portion 24f1 is arranged at a position that is not directly visible to the user on the front wall portion 9a side of the refrigerator 1A. Therefore, the refrigerator 1A does not impair the design even if the engaging portion 24f1 is provided. Further, in the refrigerator 1A, the engaging portion 24f1 is arranged at a position that is not directly visible to the user on the front wall portion 9a side of the refrigerator 1A, and therefore even if the foamed heat insulating material leaks, the leaked foamed material will leak. The heat insulating material does not deteriorate the appearance of the refrigerating compartment door 9A. Therefore, it is possible to suppress the outflow of unsightly products, and further, it is possible to reduce the waste of the products, so that the yield is improved and the productivity is improved.

In the refrigerator 1A, the edge portion 20g of the steel plate 20 is inserted into the groove portion 24i1 of the resin component 24, and the steel plate 20 and the resin component 24 are engaged and fixed. Therefore, the resin component 24 and the steel plate 20 are tightly engaged with each other, and there is no need for a separate component for assembling the resin component 24 to the steel plate 20. Further, the resin component 24 and the steel plate 20 are tightly engaged with each other, and it is not necessary to seal the engaging portion between the resin component and the steel plate. As a result, the number of manufacturing steps and the manufacturing cost of the refrigerator 1A can be suppressed.

Further, in the refrigerator 1A, the handle portion 26 is formed of the steel plate 20. Therefore, it is not necessary to secure the strength of the handle part such as increasing the thickness of the resin part, adding the rib shape, and further disposing the strength reinforcing material, and suppressing the manufacturing cost for providing these structures. it can. Further, since the handle portion 26 is formed of the steel plate 20, there is an advantage that the degradation of the handle portion 26 due to the repeated load is much less than that when the resin is used.

Further, the refrigerator 1A can be formed of one sheet of steel plate 20 to form the handle portion 26, and also to form the handle portion 26 or to engage with the engaging portion 24f1. In addition, it is not necessary to perform complicated bending on the steel plate 20. Therefore, the refrigerator 1A can reduce the number of steps for bending the steel sheet, and does not require equipment for performing complicated bending on the steel sheet. Further, no separate engaging component for connecting the steel plates is required. As a result, the refrigerator 1A can suppress material costs, equipment costs, and manufacturing costs related to manufacturing.

Further, in the structure of the door of the refrigerator, a laminated film or PET film decorated to enhance the design may be attached to the steel plate of the door, or a coating or printing process may be performed, and the steel plate of the door is more expensive. There are cases where it becomes a material. Therefore, in manufacturing the refrigerator 1A, reducing the amount of the steel plate 20 used leads to cost reduction. In the refrigerating compartment door 9A, the structure using the steel plate 20 is up to the handle portion 26, and the structure of the refrigerating compartment door 9A from there to the inner surface material 21 is configured using the resin component 24. Since the refrigerator 1A suppresses the usage amount of the steel plate 20 which is an expensive material, the material cost can be suppressed.

Further, the connecting portion 24g2 of the engaging portion 24f1 is formed such that the surface on the side of the handle portion 26 is a gently curved surface. Therefore, when the user inserts his/her finger into the recessed portion 28, even if the finger hits the resin component 24, the finger moves along the curved surface of the connecting portion 24g2, so that the finger is placed on the resin component 24. The finger is smoothly guided to the handle portion 26 without hitting strongly.

Further, in the refrigerator 1A, the operation function component 31 and the like can be arranged on the intermediate front wall portion 24a1. Since the intermediate front wall portion 24a1 is made of resin, it is easy to provide the intermediate front wall portion 24a1 with the attachment shape of the operation function component 31 in the manufacturing process of the resin component 24. Therefore, the refrigerator 1A can eliminate processing of the hole for attaching the operation function component 31 to the steel plate 20, and there is no need to add a component for attaching the operation function component 31 to the steel plate 20, and the refrigerator 1A Manufacturing cost can be suppressed.

1 Refrigerator, 1A Refrigerator, 2 Insulation box, 3 Refrigerator, 4 Ice maker, 5 Switching chamber, 6 Freezer, 7 Vegetable room, 8 Refrigerator door, 9 Refrigerator door, 9A Refrigerator door, 9a Front wall , 9b Side wall part, 9c Rear wall part, 9d Side wall part, 9e End part, 9f End part, 9g1 Upper end part, 9g2 Lower end part, 10 Ice making room door, 11 Switching room door, 12 Freezing room door, 13 Vegetable room door, 20 steel plate, 20a front wall portion, 20b side wall portion, 20c rear wall portion, 20d side wall portion, 20e middle rear wall portion, 20f side wall portion, 20g edge portion, 21 inner surface material, 21a connecting end portion, 21b connecting end portion, 22 Upper cap, 23 Lower cap, 24 Resin component, 24a Intermediate front wall portion, 24a1 Intermediate front wall portion, 24b Side wall portion, 24c Rear wall portion, 24d Curved portion, 24d1 Curved surface, 24e Intermediate side wall portion, 24e1 Wall surface, 24f Engagement Part, 24f1 engaging part, 24g inner edge part, 24g1 inner edge part, 24g2 connecting part, 24h outer edge part, 24h1 outer edge part, 24i groove part, 24i1 groove part, 24j1 tip part, 24j2 tip part, 24k edge part, 24k1 edge part , 25 foam insulation, 26 handle, 27 rotary shaft, 28 concave, 30 internal space, 31 operation function parts.

Claims (4)

An insulating box body having an opening,
A box-shaped door provided to open and close the opening of the heat insulating box,
Equipped with
The door is
A steel plate forming the front wall of the door,
An inner surface member that forms a surface facing the front wall portion and forms a rear wall portion of the door,
At one end in the width direction of the door, a resin component that is provided between the steel plate and the inner surface member and forms a part of the side wall of the door,
Equipped with
At the one end in the width direction of the door, the steel plate is bent toward the inner surface material side to form an intermediate rear wall portion facing the front wall portion, and the intermediate rear wall portion is used. A person makes up a handhold part for putting a finger on opening and closing the door,
The resin component has an intermediate front wall portion facing the intermediate rear wall portion of the steel sheet, and is engaged with the steel sheet at an edge portion of the intermediate front wall portion located on the steel sheet side in the depth direction of the door. A mating engagement part is formed,
The engaging portion has a bifurcated inner edge portion and an outer edge portion, forms a groove portion between the inner edge portion and the outer edge portion, and a tip portion of the inner edge portion and a tip portion of the outer edge portion. Is provided toward the front wall portion side,
The steel plate is engaged with the resin component by inserting the edge of the steel plate into the groove,
The refrigerator in which the steel plate and the resin component are fixed by engaging the edge portion of the steel plate with the engaging portion. The refrigerator according to claim 1 , wherein the door is provided with an operation function component for operating the refrigerator on the intermediate front wall portion. The finger-hooking portion is at said one end portion in the width direction of the door, the refrigerator according to claim 1 or 2 is formed so as to extend from the upper end to the lower end of the height direction of the door. In a state in which the door is closed, the engagement portion, from the user who is the front wall side of the refrigerator according to any one of claims 1 to 3 disposed in a position not directly visible refrigerator.

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