JP2010216764A - Hinge member mounting structure of cooling chamber - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hinge member mounting structure of a cooling chamber capable of obtaining satisfactory mounting strength with small number of components. <P>SOLUTION: A hinge mounting plate 50 is fixed by a tapping screw 56 to one side of a front surface of a partition plate 40 for vertically partitioning a storage chamber 14 in a heat-insulating casing 10 of a refrigerator 1. A hinge mounting plate 50 side end of a decorative plate 60 overlapped on the front surface of the partition plate 40 is inserted into a gap G between an outer shell 11 of the heat-insulating casing 10 and the hinge mounting plate 50. The decorative plate 60 is fixed to the partition plate 40 so as to press the hinge mounting plate 50 by being screwed with a tapping screw 64 at a position except the position at which the plate 60 is inserted into the gap G. A hinge member 30 for supporting a door 20 of the storage chamber 14 is fixed to the hinge mounting plate 50 by a tapping screw 67 which is screwed to the hinge mounting plate 50 through a screw inserting hole 65 of the decorative plate 60. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a hinge member mounting structure for a refrigerator. In this specification, “refrigerator” is a concept that refers to all devices that lower the temperature of food and other items. “Refrigerator” “Freezer” “Frozen refrigerator” “Cold storage” “Showcase” “Vending machine” Any product category, such as “machine”.

  A side-opening type door is often adopted as a door for closing the storage room of the refrigerator. When beverages are loaded in the beverage rack on the back, the door mass is substantial, and the frequency of opening and closing is generally high, so the hinge that supports the refrigerator door must be robust. It is done. Examples of such hinges can be found in US Pat.

  In Patent Document 1, an intermediate hinge that rotatably supports the door is attached to the front side of the partition wall that partitions the upper opening and the lower opening of the refrigerator inner box, and this intermediate hinge is attached to the rear surface of the partition wall. A hinge structure is disclosed in which a fixing plate is screwed.

  In Patent Document 2, a bent portion is formed at each end of the horizontal panel and the vertical panel constituting the corner of the opening of the heat insulation box, and the vertical surfaces of the bent portion are brought into contact with each other to be in contact with each other. A structure is disclosed in which the mounting strength of the hinge mechanism is improved by fixing the lateral surfaces of the hinge mechanism together with the mounting plate and fixing the hinge mechanism of the open / close door together with the mounting plate. .

Japanese Utility Model Publication No. 62-83178 JP 2004-3714 A

  An object of this invention is to provide the hinge member attachment structure of the refrigerator which can obtain sufficient attachment strength with a small number of parts.

  In order to achieve the above object, a hinge member mounting structure for a refrigerator according to the present invention is configured such that a hinge mounting plate is fixed with a screw to one side of a front surface of a partition plate that vertically partitions a storage chamber in a heat insulating housing, and the partition Place the decorative plate overlaid on the front of the plate at the hinge mounting plate side end into the gap between the outer shell of the heat insulating housing and the hinge mounting plate, and place other than the insertion point into the gap of the decorative plate The decorative plate is fixed in such a manner that the hinge mounting plate is pressed down to the partition plate, and the hinge member that supports the door of the storage chamber is attached to the hinge through the screw through hole of the decorative plate. It is characterized by being fixed to the hinge mounting plate by screws screwed into the plate.

  The door of the cooler is provided with a door packing in order to close the space between the heat insulating housing of the cooler and seal the cool air. The door packing is formed of an elastic body such as rubber, and a magnet is enclosed inside. The outer shell of the heat insulating casing is made of a steel plate and is magnetized so that the magnet is adsorbed. However, the partition plate that divides the entrance of the heat insulating casing up and down is made of synthetic resin, and the magnet is not adsorbed. Therefore, a decorative plate obtained by painting a steel plate is attached to the front surface of the partition plate. When the magnet of the door packing sticks to the decorative plate, the door packing is in close contact with the partition plate. Also, since the storage room is cooler than the outside of the heat insulating housing, condensation on the door packing is inevitable, but a metal decorative board with good heat conductivity and high heat transfer coefficient is placed behind it. Condensation at this location can be prevented by transferring heat from the heat radiation refrigerant pipe. In the present invention, the attachment of the hinge mounting plate can be strengthened with the existing parts by causing the decorative plate having the above role to participate in the mounting of the hinge mounting plate.

From the viewpoint of strength and heat transfer rate, it is advantageous to increase the thickness of the decorative board, but this increases the weight of the product and increases the amount of CO ₂ emitted during the process of manufacturing the decorative board. The thin decorative panel reduces the weight of the product, reduces CO ₂ emissions during the manufacturing process of the decorative panel, and quickly transfers heat from the heat-dissipating refrigerant pipe to the decorative panel surface, effectively preventing condensation on the door packing. It has an important meaning for three points. Although using such a thin decorative plate, the attachment strength of the hinge mounting plate does not depend on the strength itself of the decorative plate itself. Is inserted into the gap between the outer shell of the heat insulating housing and the hinge mounting plate, and the decorative plate is fixed by screwing the part other than the insertion point to the partition plate, thereby pressing the hinge mounting plate with the decorative plate. Even with a thin decorative plate, the hinge mounting plate can be securely fixed, and the strength of the hinge member as a mounting base can be increased.

  According to the present invention, in the hinge member mounting structure for a refrigerator having the above-described configuration, there is one screw for fixing the hinge mounting plate to the partition plate, and the hinge mounting plate is prevented from rotating around the screw. A rotation stopper is formed on the partition plate.

  According to this configuration, the number of parts required for mounting the hinge mounting plate can be reduced, so that the part cost can be reduced and the number of assembly steps can be reduced.

  According to the present invention, in the hinge member mounting structure for a refrigerator having the above-described configuration, the hinge mounting plate is formed with a protrusion that hits the back surface of the decorative plate.

  According to this configuration, the decorative plate can be reliably applied to the hinge mounting plate, and the hinge mounting plate can be pressed down firmly.

  According to the present invention, the mounting strength of the hinge mounting plate can be enhanced with a small number of components by using existing components.

It is a front view of the refrigerator which shows embodiment of this invention. It is a front view of the refrigerator which removed the door. It is a perspective view of a hinge member. It is a partial front view of the heat insulation housing | casing of a refrigerator. It is an enlarged partial front view of the heat insulation housing | casing of a refrigerator. FIG. 6 is a partially enlarged front view in which a hinge mounting plate is added to the state of FIG. 5. It is a perspective view of a hinge attachment plate. It is a perspective view of a decorative board. It is a partial expanded horizontal sectional view of the heat insulation housing | casing of a refrigerator, and shows the 1st step of a decorative board attachment. It is a partial expanded horizontal sectional view of the heat insulation housing | casing of a refrigerator, and shows the 2nd step of decorative-plate attachment. It is a figure explaining the force which a hinge mounting plate receives when force is added to a door.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a refrigerator 1 as an example of a refrigerator. In this specification, the left hand side of the user facing the refrigerator 1 from the front is defined as the left side of the refrigerator 1, and the right hand side is defined as the right side of the refrigerator 1.

  The heat insulating housing 10 of the refrigerator 1 is composed of an outer shell 11 made of sheet metal, an inner shell 12 made of synthetic resin, and a heat insulating material 13 that fills the gap between the outer shell 11 and the inner shell 12 (see FIG. 9). The inner space of the inner shell 12 serves as a storage chamber 14 for storing food as shown in FIG. In this specification, “storage room” means a compartment in a refrigerated temperature zone (0 ° C. to 10 ° C.), a temperature zone slightly lower (up to about −3 ° C.), “ice temperature”, “chill” "High temperature zone, excluding temperature zones where designations such as" partial "are used, compartments for freezing temperature (minus tens of degrees or less), zones for high temperature zones (for example, 50 ° C to 80 ° C), and refrigeration temperature zones It is a general term for spaces used for storage (for storage) of objects to be cooled, such as food compartments (including seasonings), medicines, cosmetics, etc., such as compartments in the intermediate temperature zone of the freezing temperature zone.

  The storage chamber 14 is partitioned into three stages up and down. The first compartment from the top is the refrigerator compartment 15, the second compartment is the second freezer compartment 16, and the third compartment is the freezer compartment 17. Each room is provided with a partition and a drawer for each purpose.

  The door 18 closes the refrigerator compartment 15, the door 19 closes the second freezer compartment 16, and the door 20 closes the freezer compartment 17. Each door opens sideways and the hinge is on the left. Each door is supported by a pair of upper and lower hinge members.

  The state of force when a load is applied to the opened door from above will be described with reference to FIG. 11 taking the door 20 as an example. When a force F1 is applied to the end of the opened door 20 from above, a moment is generated in the door 20 with the lower hinge member as a fulcrum. Thereby, the force F2 which tries to separate it from the heat insulation housing | casing 10 acts on an upper hinge member. Therefore, the attachment structure of the hinge member on the upper side of each door must be able to resist the force corresponding to F2 in FIG. 11 and the moment generated thereby.

  In the following description, the attachment structure of the hinge member on the upper side of the door 20 will be taken as an example of the hinge member attachment structure according to the present invention.

  FIG. 3 shows the hinge member 30 on the upper side of the door 20. The hinge member 30 is formed by pressing a thick steel plate into an angle shape with an L-shaped cross section to form a vertical portion 31 applied to the front surface of a partition plate, which will be described later, and a horizontal portion 32 connected to the upper edge of the vertical portion 31. It is. Two screw-through holes 33 are formed in the vertical portion 31 at intervals in the horizontal direction. In order to facilitate adjustment of the position of the hinge member 30 during the mounting operation, the screw through hole 33 is a horizontally long slot. On the other hand, the left portion of the horizontal portion 32 protrudes toward the front side, and a door support shaft 34 perpendicular to the tip thereof is fixed downward. The hinge member on the lower side of the door 20 is opposite to the hinge member 30 in the protruding direction of the door support shaft.

  The hinge member 30 is fixed to a hinge mounting plate 50 fixed to a horizontal partition plate 40 that partitions the second freezer compartment 16 and the freezer compartment 17. First, the configuration of the partition plate 40 will be described.

  The partition plate 40 is a synthetic resin molded product, and as shown in FIG. 9, an engagement portion 41 that engages with the inner shell 12 is formed. The partition plate 40 is fixed to the inner shell 12 together with the outer shell 11 by the tapping screw 42 shown in FIGS. 4 and 5 after the engaging portion 41 is engaged with the inner shell 12.

  A hinge mounting plate 50 is fixed to one side of the front surface of the partition plate 40 fixed to the inner shell 12, that is, the left side in the embodiment. The hinge mounting plate 50 is obtained by press-molding a thick steel plate and has the shape shown in FIGS. That is, the hinge mounting plate 50 is a rectangular plate that is long in the horizontal direction, and trapezoidal protrusions 51L and 51R are formed at intervals in the horizontal direction. The protrusions 51L and 51R are provided with a pilot hole 52 for screwing a tapping screw described later.

  A hook-like protrusion 53 is formed at the left end of the hinge mounting plate 50. The top surface of the protrusion 53 and the top surfaces of the protrusions 51L and 51R are flush with each other. Two screw-through holes 54 are formed between the protrusions 51L and 51R so as to be aligned in the vertical direction. A cutout 55 is formed at the right end of the hinge mounting plate 50.

  As shown in FIG. 5, on the front surface of the partition plate 40, a tapping screw 56 (see FIGS. 6 and 9) passing through the upper one of the two screw through holes 54 formed in the hinge mounting plate 50 is provided. And a boss 59 with which a notch 55 of the hinge mounting plate 50 engages is formed.

  When the hinge mounting plate 50 is applied to the partition plate 40 with the notch 55 engaged with the boss 59, and the tapping screw 56 is screwed into the lower hole 58 through the upper screw through hole 54, the hinge mounting plate 50 becomes the partition plate. 40 is attached. Since the notch 55 is engaged with the boss 59, the hinge mounting plate 50 does not rotate around the tapping screw 56. That is, the boss 59 serves to prevent the hinge mounting plate 50 from rotating. In this attachment state, a gap G shown in FIG. 9 is generated between the protrusion 53 of the hinge attachment plate 50 and the outer shell 11.

  A decorative plate 60 is superimposed on the front surface of the partition plate 40. The decorative plate 60 is obtained by press-molding a thin steel plate into a shape shown in FIG. 8 and coating it, and covers the entire front surface of the partition plate 40. At the left end of the decorative plate 60, an engaging portion 61 is formed which is inserted into the gap G between the protrusion 53 of the hinge mounting plate 50 and the outer shell 11 and engages with the back surface of the edge of the outer shell 11. The engaging portion 61 is formed with a screw hole 62 through which the tapping screw 42 is passed.

  A screw through hole 63 is also formed near the right end of the decorative plate 60. After inserting the engaging portion 71 of the decorative plate 60 into the gap G as shown in FIG. 9, the decorative plate 60 is pressed against the partition plate 40 as shown in FIG. 10, and the tapping screw 64 is attached to the partition plate 40 through the screw through hole 63. When the screw (see FIG. 4) is screwed in, the decorative board 60 is almost attached. Finally, when the tapping screw 42 is screwed into the inner shell 12 so as to penetrate the outer shell 11, the decorative plate 60, and the partition plate 40, the attachment of the decorative plate 60 is completed.

  As shown in FIG. 10, the protrusions 51 </ b> L, 51 </ b> R, and 53 of the hinge mounting plate 50 are in contact with the back surface of the decorative plate 60 when the decorative plate 60 is attached. The hinge mounting plate 50 is pressed into the decorative plate 60 and is attached to the hinge mounting plate 50 even though only one tapping screw 56 is screwed into the partition plate 40 through the hinge mounting plate 50. Will be strong. The engagement between the notch 55 and the boss 59 is also maintained firmly, and the hinge mounting plate 50 does not rotate.

  Screw holes 65 are formed in the decorative plate 60 at two locations corresponding to the pilot holes 52 of the hinge mounting plate 50. Similar to the screw through hole 33 of the hinge member 30, the screw through hole 65 is a horizontally long slot. The decorative plate 60 is also formed with two screw-through holes 66 near the right end, which is provided when the hinge mounting plate 50 is disposed on the right side of the partition plate 40.

  The two screw through holes 33 of the hinge member 30 are overlapped with the two screw through holes 65 of the decorative plate 60, and the tapping screws 67 ( When screwing in (see FIG. 10), the attachment of the hinge member 30 is completed. Since the hinge mounting plate 50 is firmly attached, the hinge member 30 is attached without shaking and firmly supports the door 20.

  Although the embodiments of the present invention have been described above, the scope of the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the invention.

  The present invention can be widely used in a refrigerator for home use or business use.

DESCRIPTION OF SYMBOLS 1 Refrigerator 10 Heat insulation housing | casing 11 Outer shell 12 Inner shell 14 Storage room 15 Refrigeration room 16 2nd freezing room 17 Freezing room 18, 19, 20 Door 30 Hinge member 40 Partition plate 50 Hinge mounting plate 51L, 51R, 53 Protrusion G Clearance 56 Tapping screw 59 Boss (non-rotating)
60 Decorative plate 64, 67 Tapping screw

Claims (3)

  A hinge mounting plate is fixed with a screw on one side of the front surface of the partition plate that partitions the storage chamber in the heat insulating casing up and down, and an end of the decorative plate that overlaps the front surface of the partition plate is connected to the heat insulating housing. The decorative plate is inserted into the gap between the outer shell of the body and the hinge mounting plate, and the decorative plate is pressed into the partition plate by screwing a portion other than the insertion portion into the gap to the partition plate. And a hinge member that supports the door of the storage chamber is fixed to the hinge mounting plate by a screw that is screwed into the hinge mounting plate through a screw through hole of the decorative plate. Hinge member mounting structure.   The number of screws for fixing the hinge mounting plate to the partition plate is one, and a detent is formed on the partition plate to prevent the hinge mounting plate from rotating about the screw. The hinge member mounting structure for a refrigerator according to Item 1.   3. The hinge member mounting structure for a refrigerator according to claim 1 or 2, wherein the hinge mounting plate is formed with a protrusion that hits the back surface of the decorative plate.

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