JP4155589B2 - refrigerator - Google Patents

Description

  The present invention relates to a double door spread refrigerator.

  An example of a conventional double door refrigerator is described in Japanese Patent No. 3199390. Hereinafter, this conventional double door refrigerator will be described with reference to FIGS.

  9 is a perspective view showing a door open state of a refrigerator having a conventional structure, FIG. 10 is a side view of the door of FIG. 9 with the partition body protruding sideways, and FIG. 11 is a view showing both the first and second doors. FIG. 12 is an enlarged view of the main part of FIG. 11, and FIG. 13 is an enlarged view of the main part of FIG.

  First, in FIG. 9, the refrigerator main body 51 includes a refrigeration room 52, a vegetable room, a freezing room, and the like, and the refrigeration room 52 includes doors 53 and 54 that close the front edge opening. The doors 53 and 54 are supported by hinges 55 and 56, and open and close by rotating around the hinges 55 and 56. Moreover, the doors 53 and 54 are provided with packings 57 and 58 so that the cool air cannot escape from the refrigerator compartment while the doors 53 and 54 are closed.

  The problem with the double doors is the seal structure where the door 53 and the door 54 are adjacent to each other. The rotating partition 59 (see FIGS. 11 and 12) provided on the door 54 is rotated to A gasket receiving surface is formed.

  In FIG. 10, the attachment structure with respect to the door 54 of the rotation partition 59 is demonstrated. The rotary partition 59 is installed by a hinge 60 attached to the door inner plate 61 so that the rotary partition 59 itself can freely rotate. In addition, the rotation partition 59 performs a turning motion such that the guide groove 62 is raised and folded by entering and exiting a guide pin 63 (see FIG. 9) provided in the refrigerator main body.

  That is, when the rotating partition 59 is raised, the rotating partition 59 forms a receiving surface for the packing 57 provided on the door 53 as shown in FIG. And the refrigerator main body can seal the clearance gap between the door 53 and the door 54 because the rotation partition 59 forms a receiving surface.

  Next, operation | movement of a rotation partition is demonstrated using FIG.11 and FIG.12. When the door 53 and the door 54 are closed, the rotary partition 59 is pivoted about the hinge 60 so as to form the receiving surfaces of the packings 57 and 58 as shown by the solid lines, and is in a raised state. Become. When the door 54 is rotated around the hinge 56 as indicated by the alternate long and short dash line, the rotary partition 59 rotates about the hinge 60 and is folded as indicated by the alternate long and short dash line.

  As shown in FIG. 13, the rotary partition 59 has a heater 65 for preventing dew from inside. Electricity is supplied to the heater 65 so that electricity supplied to the refrigerator main body is guided by the lead wire 66, and the lead wire 66 is drawn into the rotary partition 59 through the pin of the hinge 60. Therefore, the pin of the hinge 60 has an inner diameter through which the lead wires 66 (two) and the ground wire (one) pass.

  In a double door refrigerator, the gap between adjacent doors is a problem. As can be seen from commercially available furniture and the like, the smaller the gap, the higher the quality of the product. In the refrigerator, the smaller the gap between the doors, the higher the texture.

  From this point of view, when the conventional refrigerator is viewed, it can be seen from FIG. 11 that it is the size of the rotary partition 59 that enlarges the inter-door clearance dimension W1. This is because the door 53 needs to be installed at a position outside the maximum locus drawn by the rotary partition 59 when the door 54 is opened and closed.

  In addition, since the rotating partition exposes surfaces other than the packing receiving surface in cold air, it is affected by the heat conduction of the members constituting the rotating partition, and the packing receiving surface tends to be below the dew point temperature, resulting in dew condensation. Cheap. Conventionally, in order to prevent this dew, the packing receiving surface of the rotary partition is heated by a dew prevention heater.

  As shown in FIG. 13, lead wires are introduced into the rotating partition of the heater for preventing dew condensation through the inside of a hinge pin that pivots the rotating partition so that the conventional rotating partition has a hinge pin. The thickness (Y1 dimension in FIG. 12) is larger than the diameter of the bearing portion to be formed.

  There are various reasons why the thickness of the rotary partition is increased, but the most important reason is to ensure heat insulation performance. In order to increase the thickness, because the rotary partition is installed on the side edge of the door pocket, the W2 dimension of the door pocket needs to be reduced, and the inter-door clearance dimension W1 must be increased. It causes many harmful effects such as becoming larger. Therefore, it has been found that if the thickness dimension Y1 of the rotary partition can be reduced by increasing the watt density of the dew prevention heater, the effect is great. The first object of the present invention is to reduce the thickness of the rotating partition and to reduce the size of the entire rotating partition.

  Furthermore, as shown in FIG. 12, the rotary partition takes no measures against the cold air around the packing receiving surface. The second object of the present invention relates to prevention of cold air circulation.

A first object of the present invention is to provide two double doors, a door inner plate disposed on the door and provided with a pocket container, and a rotation which is installed on one side of the door and forms a packing receiving surface of the other door. The rotary partition is arranged in a maximum rotation locus drawn by the pocket container or a stored item in the pocket container when the door is rotated and folded around a hinge, and the rotary partition is arranged on the rotary partition. Is achieved by providing a cord heater through a hinge pin serving as a rotating shaft .

A second object of the present invention is to provide two double doors, a door inner plate disposed on the door and provided with a pocket container, and a rotation which is installed on one side of the door and forms a packing receiving surface of the other door. The rotary partition is arranged in a maximum rotation locus drawn by the pocket container or a stored item in the pocket container when the door is rotated and folded around a hinge, and the rotary partition is arranged on the rotary partition . fin has a wind stop plate parallel to the casement type door when closed the double doors type door, wherein the door inner plate of the other door, reducing the cold air quantity to the packing of the door This is achieved by having an attached gasket.

In said structure, it is preferable to provide a code | cord heater in a rotation partition through the hinge pin used as a rotating shaft .

In addition, the windshield plate is formed integrally with the case forming the rotary partition, and the protruding length of the windshield plate from the case is equal to or less than the outer diameter of the pin receiver that receives the hinge pin serving as the rotary shaft of the rotary partition. Further, it is preferable that the finned gasket is a soft-hard coextruded gasket, and the hard portion is fixed to the door inner plate.

  The cord heater is preferably inserted into the rotating partition through the covered tube inserted through the hinge pin.

  In the present invention, it is possible to provide a refrigerator in which the thickness of the rotating partition is reduced and the entire rotating partition is reduced in size. Further, in the present invention, it is possible to reduce the amount of cool air around the packing received by the rotary partition.

  1 is a perspective view of a refrigerator according to an embodiment of the present invention, FIG. 2 is an AA cross-sectional explanatory view of FIG. 1, and FIG. FIG. 4 is a side view of FIG. 3, FIG. 5 is a view corresponding to the bottom of FIG. 4, and FIG. 6 is a diagram with countermeasures against dew condensation on the surface of the rotary partition. 7 is an explanatory view of the rotary partition operation of FIG. 6, and FIG. 8 is a view for explaining an embodiment different from FIG.

  First, in FIG. 1, the refrigerator 1 is provided with a refrigerator compartment, a vegetable compartment, and a freezer compartment in order from the top, and the uppermost refrigerator compartment is a door 2, which is fixed to the refrigerator 1 rotatably by hinges 4 and 5. 3 is a refrigerator with double doors.

  In FIG. 2, the door 3 includes a rotary partition 7 that forms a receiving surface for the packing 6 a of the door 2. The rotary partition 7 is fixed to the bank 10 provided on both sides of the door inner plate 9 by hinges 8 with screws 11 (see FIG. 3). In the state where the door 3 is closed as shown in FIG. 2 in relation to the guide pins provided in the refrigerator main body, the surface for receiving the packing 6b of the door 3 and the receiving surface for the packing 6a of the other door 2 are configured. Form. Further, the rotary partition 7 is folded to the position of the solid line when the door 3 rotates around the hinge 5 (see FIG. 1).

  The basket 12 is a pocket attached using the bank 10, and a paper pack 13 such as milk is stored in the pocket, and the bottom surface of the pocket is inclined so that the paper pack 13 can be easily put in and out. The tip of the paper pack 13 travels slightly to the refrigerator compartment 14 side from the basket mouth. The doors 2 and 3 are provided with handles 15a and 15b for opening and closing the doors.

  With the door 3 of the refrigerator having such a configuration, the opening locus of the door 3 draws and opens the maximum rotation locus indicated by a one-dot broken line around the hinge 5 that pivotally supports the door 3.

  The maximum rotation trajectory will be described in more detail. The gap dimension W5 between the doors 2 and 3 is normally set to about 10 mm. This gap dimension W5 is often determined by design constraints. Once this gap dimension W5 is determined to be, for example, 10 mm, the door 3 includes the protrusion of the stored item to the refrigerator compartment 14 side. It must be able to be opened using a 10 mm gap. The design dimension is W5 / 2-α shorter than 10 mm considering that the doors 2 and 3 are opened simultaneously. Under such circumstances, the size of the rotary partition 7 forming the receiving surfaces of the packings 6a and 6b when attached to the bank 10 becomes a problem. That is, depending on the size of the rotary partition 7 and the mounting location, the gap dimension W5 may increase.

  Therefore, in order to easily open and close the door, the rotary partition 7 needs to be stored within the maximum rotation locus indicated by the one-dot broken line. In order to fit within this maximum rotation locus, it is necessary to make the rotary partition 7 thinner. Further, the rotary partition 7 has the same depth thickness when the doors 2 and 3 are closed as the outer diameter of the hinge pin that rotates the rotary partition 7.

  If it demonstrates using FIGS. 3-5, the rotation partition 7 will form the rectangular parallelepiped by the case 16 and the case 17 with a hollow inside. In the hollow portion, a heat insulating material 18, a cord heater 19 and the like are contained. The code heater 19 heats the case 16 serving as a receiving surface for the packings 6a and 6b to prevent dew formation on the receiving surfaces of the packings 6a and 6b.

The hinge 8 and the rotary partition 7 are connected by inserting a hinge pin 20 into a pin receiver 21 provided on the rotary partition 7. The pin receiver 21 includes a guide portion 21b, a small diameter portion 21a having an inner diameter smaller than the inner diameter of the guide portion 21b, and a positioning portion 21c that is a step portion between the guide portion 21b and the small diameter portion 21a. Yes. The hinge pin 20 to be inserted into the pin receiver 21 is a step portion between the guide portion 20b, a narrow diameter portion 20a having an inner diameter smaller than the inner diameter of the guide portion 20b, and the guide portion 20b and the narrow diameter portion 20a. And a stepped portion 20c.

  The pin receiver 21 has a small-diameter portion 20a and a guide portion 20b of the hinge pin 20 as rotational surfaces, and has a small-diameter portion 21a and a guide portion 21b that support the shaft stably by increasing the sliding area. .

  The covering tube 23 is a tube that is inserted from the opening of the hinge pin 20 and continues to the pin receiver 21, and the lead wire 22 is inserted into the covering tube 23. The lead wire 22 is an electric wire having a diameter of 1.7 mm, and is handled as a set of three wires, two for the cord heater and one for the ground wire.

  The outer diameter of the covering tube 23 is smaller than the inner diameter of the small diameter portion 20 a of the hinge pin 20, and it is necessary to provide a gap with the hinge pin 20. This is because, when the rotary partition 7 is rotated by the hinge pin 20, if there is a case where the rotating partition 7 does not rotate due to friction, the covered tube 23 may be cut due to repeated rotational movement together with the internal lead wire 22. Because. Therefore, the outer diameter ODI of the coated tube 23 needs to be smaller than the inner diameter ID1 of the small diameter portion 20a of the hinge pin 20.

  In this embodiment, if the outer diameter OD2 of the small diameter portion 20a is 9.0 mm and the inner diameter ID2 is 7.0 mm, the outer diameter OD1 of the normal coated tube 23 is 6.5 mm considering the gap. Since the wall thickness of the coated tube 23 is about 0.5 mm, the inner diameter ID1 of the coated tube 23 is 5.5 mm, and three wires having an outer diameter of 1.7 mm are provided in the coated tube having a diameter of 5.5 mm. Pass through.

As for the dimensions of the pin receiver 21, if the outer diameter OD2 of the small diameter portion 20a is 9.0 mm and the step size of the step portion 20c used for positioning is 1 mm, the outer diameter OD3 of the guide portion 20b is 11.0 mm. The inner diameter ID4 of the pin receiver 21 that pivotally supports the guide portion 20b is about 11.5 mm. If the thickness of the pin receiver 21 is about 1.5 mm, the outer shape OD5 of the guide portion 21b of the pin receiver 21 is about 14.5 mm.

  In the embodiment described above, the inner diameter of the hinge pin 20a is set to 7.0 mm. Therefore, if the inner diameter of the hinge pin 20a changes, other numerical values also change, and the lead having an outer diameter of about 1.7 to 2.4 mm. Considering the use of a wire, the outer diameter of the pin receiver 21 is set to 14 to 20 mm.

  Accordingly, the thickness of the rotary partition 7 is set to 14 mm to 20 mm as shown in FIG. In other words, the thickness T1 of the rotary partition 7 is optimally determined by the diameter of the mounting portion of the pin receiver 21. And the heat insulating material 18 and the cord heater 19 are arrange | positioned in this thickness T1.

  The setting of the width dimension W7 of the rotary partition 7 will be described below. Since the rotary partition 7 constitutes the receiving surface of the packing 6a of the door 2 and the packing 6b of the door 3, as shown in FIG. 6, the width dimension of the packings 6a and 6b to the rotary partition 7 is shown. It is necessary to make it slightly larger than the width W6 of the suction portion.

  This is because the relative positions of the rotary partition 7 and the packing 6a and the packing 6b are the mounting position accuracy of the hinges 4 and 5 installed in the refrigerator 1, the doors 2 and 3 pivoted on the hinges 4 and 5, and the packings installed on the doors 3. This is because all accuracy errors such as the mounting position accuracy and the manufacturing accuracy of each part are accumulated, and is usually set to be about 1 to 3 mm larger than the suction width W6 of both packings.

  Further, the rotation partition 7 having the width W7 (W7 = W6 + α) set as described above is pivotally supported by the hinge 8 so that the pivotal support side wall 7b is slightly from the rotation center of the hinge pin 20 of the hinge 8. The dimension L7 is isolated. This is to prevent the adsorbing surface of the packing 6b from being worn out because the rotary partition 7 gradually rotates with the rotation of the door 3 when the door 3 is opened.

  Further, as shown by the solid line in FIG. 7, the rotary partition 7 is stored in the door pocket container or in the door pocket container as shown in FIG. 2 even when folded on the side wall side of the bank 10. The folding position of the rotary partition 7 is determined by the contact position of the stopper 7e provided on the rotary partition 7 and the bank 10 so that it can be stored in the maximum rotation locus of the object.

  The wind-stop plate 7c is a member provided on the shaft support side of the rotary partition 7 to block the flow of wind. As shown by the arrows in FIG. 6, a large amount of cool air flowing from the inside of the cabinet is directly blown onto the packing 6b. The distance from the bank 10 is narrowed so that there is no such thing. The windshield plate 7c is set within the maximum outer diameter of the pin receiver 21 so that the packing 6b is not worn even if it is rotated as the rotary partition 7 is rotated.

  The finned gasket 28 is attached to the guide plate of the door 2 with screws 29. The finned gasket 28 is installed with a slight gap from the rotating side wall 7a of the rotary partition 7 so that a large amount of cold air flowing from the inside of the warehouse does not directly hit the packing 6a as shown by the arrows in FIG. . The finned gasket 28 is a co-extruded product in which, when assembly accuracy errors are accumulated, the portion 28b that contacts the rotating side wall 7a of the rotary partition 7 is soft and the screwed portion 28a is hard. Therefore, even if the finned gasket 28 and the rotating side wall 7a come into contact with each other, the parts are not damaged.

  The rotating partition shown in FIG. 8 is an example of installation of another windshield plate, and a description will be given below when the windshield plate is set to exceed the pin receiving outer diameter. When the windshield plate 7g installed on the pivot support side wall 7b of the rotary partition becomes larger than the pin receiving outer diameter 21b by δ2, the packing 6b is crimped by δ2 by the rotation of the rotary partition. The packing 6b is worn out by repeated friction of the windbreak plate 7g of the rotary partition that rotates at the same time each time it is opened and closed. Therefore, the windshield plate is set within the maximum outer diameter of the pin receiver 21 as shown in FIG. 6 or FIG.

  The embodiment described above has the following effects. That is, in a double door refrigerator in which the rotary partition that forms the packing receiving surface of the other door is pivotally supported by a hinge or the like on the side edge of one door inner plate, the door inner plate on the side to which the rotary partition is attached is formed. Since the rotary partition is installed in the maximum trajectory drawn when the door pocket container or the stored item stored in the door pocket container rotates around the hinge pivotally supporting the door body, the dimension between adjacent doors can be set. Of course, both door inner plates can be brought close to each other, and the amount of storage in the door inner plate pocket can be increased.

  One of the gaps between the rotary partition when the door is closed and the door inner plate (the shaft support side of the rotary partition) is a windshield provided on the rotary partition, and the other is a fin attached to the door inner plate. Since the gaskets are attached so that the gaps are reduced so that a large amount of cool air does not go to the door packing, a large amount of cool air will not directly hit the packing, and the packing or rotating partition surface located outside the door The exposure to the side is suppressed.

  Furthermore, a rotary partition that forms the packing receiving surface of the other door on the side edge of one door inner plate is pivotally supported by a hinge or the like, and a cord heater is introduced into the rotary partition through the hinge pin. Further, in the double door refrigerator in which the bearing portion of the hinge pin is formed at the end portion of the rotating partition, the thickness in the depth direction of the rotating partition is approximately the same as the outer shape of the bearing portion provided at the end portion of the rotating partition. Since it is formed, it is possible to obtain a rotating partition having a reasonable design size that does not need to be made thinner than necessary.

  Also, since the inner diameter of the bearing part is the minimum inner diameter that allows the lead wire to pass through the coating tube to the rotary partition that forms the door receiving surface, the lead wire is protected from the hinge by the coating tube. Of course, since it is not necessary to make the rotating partition thinner, it is possible to obtain a highly reliable refrigerator.

  In addition, two to three cord heater cords that pass through the inner diameter of the bearing portion are introduced into the rotating partition through the inside of the covering tube inserted into the hinge pin. It can be made, and it can be set as the refrigerator provided with the rotation partition structure of a rational dimension.

  Further, in a double door refrigerator in which a rotary partition forming a receiving surface of the other door packing is pivotally supported by a hinge or the like on a side edge of one door inner plate, the rotary partition when the door is closed, and the door inner plate One of the gaps formed between them (the pivot support side of the rotary partition) is a rib provided on the rotary partition and the other is a finned gasket attached to the inner plate of the door. Therefore, a large amount of cool air is largely restricted from directly hitting the packing, and dew condensation on the packing located on the outside of the warehouse or on the surface of the rotary partition is suppressed. That is, the rotary partition can be greatly reduced in size (thickness direction and width direction).

  In addition, the rib provided on the rotating partition side is formed integrally with the case main body forming the rotating partition, and the length of the rib inside the door is the maximum diameter portion of the bearing portion provided for rotating the rotating partition. Therefore, it is not necessary to prepare a special part as a matter of course that the rib hits another part when the rotary partition is rotated and the other part is not damaged.

  Also, the finned gasket provided on the other door inner plate side is a soft hard coextruded finned gasket, and the hard part is fixed to the door inner plate side with screws or the like. Even if the attached gasket hits the rotating partition, the touched part becomes a soft part, and both are not damaged.

The perspective view of the refrigerator which is an Example of this invention. FIG. 2 is a cross-sectional explanatory view taken along a line AA in FIG. 1. Explanatory drawing of the principal part of the rotation partition used for FIG. FIG. 4 is a side view of FIG. 3. FIG. 5 is a bottom equivalent view of FIG. 4. The figure which took the measure against the dew on the surface of the rotating partition. FIG. 7 is an explanatory diagram of a rotary partition operation in FIG. 6. The figure explaining the Example different from FIG. The refrigerator perspective view of the state which opened both the doors which are a prior art example. The door side view of the refrigerator shown in FIG. The partial horizontal sectional view at the time of both doors closing of the refrigerator shown in FIG. The principal part enlarged view of FIG. The principal part enlarged view of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Refrigerator, 2, 3 ... Door, 4, 5, 8 ... Hinge, 6a, 6b ... Packing, 7 ... Rotation partition, 7a ... Rotating side wall, 7b ... Shaft support side wall, 7c, 7g ... Windshield plate, 7e ... stopper, 9 ... door inner plate, 10 ... bank, 11, 29 ... screw, 12 ... basket, 13 ... paper pack, 14 ... refrigerator compartment, 15a, 15b ... handle, 16, 17 ... case, 18 ... heat insulating material, DESCRIPTION OF SYMBOLS 19 ... Code heater, 20 ... Hinge pin, 20a, 21a ... Small diameter part, 20b, 21b ... Guide part, 20c ... Step part, 21 ... Pin receiving, 21c ... Positioning part, 22 ... Lead wire, 23 ... Coated tube, 28 ... gasket with fins.

Claims (6)

Two double doors, a door inner plate disposed on the door and provided with a pocket container , and a rotary partition installed on one side of the door to form a packing receiving surface of the other door, When the door is rotated around a hinge and folded, the pocket container or a stored item in the pocket container is arranged in a maximum rotation locus drawn ,
A refrigerator in which the rotary partition is provided with a cord heater through a hinge pin serving as a rotary shaft . Two double doors, a door inner plate disposed on the door and provided with a pocket container , and a rotary partition installed on one side of the door to form a packing receiving surface of the other door, When the door is rotated around a hinge and folded, the pocket container or a stored item in the pocket container is arranged in a maximum rotation locus drawn,
The rotary partition has a windshield that is parallel to the double door when the double door is closed,
A refrigerator having a finned gasket on the door inner plate of the other door to reduce the amount of cool air flow to the packing of the door. In claim 2,
A refrigerator in which the rotary partition is provided with a cord heater through a hinge pin serving as a rotary shaft . In claim 2 or 3,
A refrigerator in which the windshield plate is formed integrally with a case forming a rotary partition, and a protruding length of the windshield plate from the case is equal to or less than an outer diameter of a pin receiver that receives a hinge pin serving as a rotation shaft of the rotary partition. In claim 2,
Refrigerator said fin with a gasket is a soft hard co-extruded gasket, the hard part is fixed to the door inner plate. In claim 3,
The code heater, refrigerator inserted into the rotary partition within through the coating tube inserted through the said hinge pin.

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