JP2004301457A - Refrigerator and hinge mechanism for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator capable of easily sealing a clearance between left and right doors in a case of hinged double doors, and improving the durability of gaskets located outside the hinges, and an effective area of a movable shelf regardless of whether it is the hinged double doors type refrigerator or not, in the refrigerator comprising a rotary door. <P>SOLUTION: The hinge part 10 is composed of a hinge plate 1 comprising a hinge pin 11 and mounted on a refrigerator main body, and a stopper plate 2 comprising a pin receiving recess part 21 and mounted on a rotary door 3. Here the pin receiving recess part 21 is formed into the shape of a slot, and its positional relationship with the hinge pin 11 covering the same, is variable by the action of a cam between a guide pin 12 on the hinge plate 1 and a cam part 23 formed by an end face of a stopper plate 2. The rotary door 3 receiving the action of the cam is shifted to the outside in the lateral direction when the rotary door 3 is opened by the displacement of the hinge pin 11 and the pin receiving recessed part 21 covering the same on the basis of the action of the cam. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a refrigerator that opens and closes a revolving door via a hinge. In particular, the present invention relates to a refrigerator provided with a mechanism for moving the fulcrum of the revolving door at the time of opening and closing, and a stopper mechanism for regulating the rotation angle of the revolving door at the hinge portion. In particular, the present invention relates to a refrigerator in which the left and right rotating doors are of a double door type.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, double doors have been used in large refrigerators and the like. In such a double door refrigerator, it is necessary to seal the space between the left and right rotating doors when closed. At this time, usually, a rotatable partition plate is arranged inside the place where the edges of the left and right doors meet, and the gasket at the edge of the revolving door is abutted from the door rotation direction to perform sealing ( For example, Patent Document 1).
[0003]
However, in the case where such a movable partition plate is provided, a force for operating the movable partition plate is required, and thus there is a problem that a force required to open the revolving door is generally increased.
[0004]
Therefore, it has been attempted to omit the movable partition plate and directly abut the left and right doors via gaskets to seal the gap. However, when one of the left and right revolving doors is opened, the other revolving door may be entangled and opened. There is also a problem that the durability of the gasket is greatly reduced because the gaskets rub against each other. Furthermore, in order to ensure reliable sealing, it is generally necessary to increase the thickness of the part to be abutted, so it is required to increase the thickness of the sliding portion at the edge of the revolving door. There was a problem that the required force also increased.
[0005]
On the other hand, in the structure where the gasket is provided on the left and right sides outside the hinge that is the fulcrum of the rotation of the revolving door, when the door is opened, the gasket rubs or twists with the housing of the refrigerator body, resulting in reduced durability There was a case.
[0006]
In view of this, it has been proposed to provide a cam mechanism including a large number of metal members at the hinge portion and to move the fulcrum of the revolving door forward when the revolving door is opened (Patent Document 2).
[0007]
However, when such a mechanism is provided, there is a problem that the structure of the hinge portion is complicated and the cost increases. Efforts have been made to reduce the number of components and the cost of parts and assembly of the hinge portion of the refrigerator (for example, Patent Document 3), but it can be said that this trend goes against this trend.
[0008]
On the other hand, depending on the use environment and installation environment of the refrigerator, the revolving door can often be opened only up to about 90 °. When a movable shelf mechanism that can move in the vertical direction or the like is provided in the housing of the refrigerator body, a mechanism that slightly projects forward with the movement in the vertical direction or the like is employed. It is necessary not to interfere with the pocket portion or the like. Therefore, it was necessary to reduce the shelf area of the movable shelf mechanism by this margin.
[0009]
[Patent Document 1] Japanese Patent Application Laid-Open No. 7-234068
[0010]
[Patent Document 2] Japanese Patent Application Laid-Open No. 8-271133
[0011]
[Patent Document 3] JP-A-7-248180
[0012]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and firstly, in a refrigerator having a double door type revolving door, a refrigerator that can be more reliably and easily opened and closed even without a movable partition plate is provided. try to. In addition, the present invention is not limited to the double-door refrigerator, and provides a refrigerator capable of improving the durability of the gasket outside the hinge, improving the usability of the refrigerator, or improving the effective area of the movable shelf. try to.
[0013]
[Means for Solving the Problems]
The refrigerator of the present invention is a refrigerator in which each hinge part supporting the revolving door from above and below on one side includes a first member provided with a hinge pin, and a second member provided with a pin receiving recess for receiving the hinge pin. The pin receiving recess has an elongated hole shape and is slidable along the longitudinal direction between the pin receiving recess and the hinge pin. First and second guide portions for moving the position of the hinge pin in the pin-shaped receiving recess are provided, so that the fulcrum of the revolving door moves in the left-right direction or back and forth with the opening and closing operation of the revolving door. It is characterized by causing a positional shift in the direction.
[0014]
With the above configuration, the fulcrum of the revolving door can be moved when the revolving door is opened and closed without increasing the number of members required for the hinge portion. This allows the revolving door to move outward in the left-right direction when it begins to open.In this case, even if the double door opening left and right doors are directly struck through the gasket, the other door is It is possible to reduce or prevent a problem such as being stuck and opened.
[0015]
According to one preferred embodiment, the first and second members are provided with first and second contact portions that contact each other when the revolving door starts to be opened from the closed state, respectively, and these first and second members are provided. The abutment portion, when starting to open from the closed state of the revolving door, from the point where the first and second guide portions cause camming, a vertical line extending perpendicular to the direction of these mutual movements, The hinge pin and the pin receiving recess are provided near a point of intersection where a vertical line extending perpendicular to the direction of the mutual movement intersects with a point where the hinge pin and the pin receiving recess slide with each other.
[0016]
According to this aspect, the force based on the cam action is transmitted through the lever action with the contact portion as a fulcrum, and the positional displacement of the hinge pin in the elongate peripheral wall is smoothly performed. Further, even when the revolving door receives a force in the long diameter direction of the elongated hole-shaped peripheral wall portion when the revolving door is closed, the revolving door does not easily displace because it is caught by the contact portion.
[0017]
Preferably, the first member and the second member include third and fourth guide portions for holding the rotating door in a state after the displacement when the rotating door is opened by a predetermined angle or more, respectively. The third and fourth guide portions are provided so as to be slidable with each other along an arc centered on the fulcrum of the rotating door after the displacement.
[0018]
With such a configuration, after the revolving door is opened by a predetermined angle or more, the fulcrum of the revolving door can be positioned with high accuracy.
[0019]
According to another preferred aspect, the first and second guide portions are farther from the revolving door than a surface on which the horizontal plate-shaped main portions of the first and second members slide or a gap therebetween. Position.
[0020]
With such a configuration, the margin of the gap between the first and second members can be reduced. Therefore, the height dimension of the hinge portion or the gap between the revolving door and the door below it can be minimized.
[0021]
According to another preferred aspect, when the revolving door starts to be opened from the closed state, the long hole-shaped peripheral wall portion is oriented in a direction closer to the front and rear than the left and right direction of the refrigerator, and at this time, the first and the second holes are turned off. The second guide portion performs a cam action to cause the displacement near a portion where the major axis of the ellipse is extended.
[0022]
With such a configuration, it is possible to prevent an undesired stress from being applied to the gasket located outside the hinge portion, and thus it is possible to improve durability. In addition, it is possible to improve the adhesion between the rotating door via the gasket and the housing of the refrigerator main body, and to perform the sealing more reliably.
[0023]
According to still another preferred aspect, when the revolving door is rotated approximately 90 ° from the closed state, the ellipse is oriented in the front-rear direction, and the displacement is maximized.
[0024]
With such a configuration, when the refrigerator door can only be opened up to about 90 ° due to restrictions on the use environment or the like, it is easy to take out the object at the hinge side. In addition, when a shelf mechanism capable of vertical movement is provided in the storage room, the shelf area can be improved.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
A hinge of the refrigerator according to the first embodiment will be described with reference to FIGS.
[0026]
FIGS. 1 and 2 are exploded perspective views of the hinge portion as viewed obliquely from above and below. FIGS. 3 and 4 are plan views showing the state of the hinge portion when the revolving door is closed and when the revolving door starts to open. FIG. 5 is a plan view of the double door.
[0027]
As shown in FIG. 5, the refrigerator 50 of the present embodiment is of a type having a double door type revolving door 3. 1 to 4 and the following description, for convenience, a hinge portion at the lower end of the right door is described as an example, but the other hinge portions of the revolving door have exactly the same configuration.
[0028]
As shown in FIGS. 1 and 2, the hinge unit 10 includes a hinge plate 1 attached to a refrigerator housing, a hinge receiving recess 21, and a stopper plate 2 having a stopper lip 24. The stopper plate 2 is attached to the attachment portion 35 at the lower end of the revolving door 3 so as not to be displaced. In the embodiment, the hinge plate 1 is made of metal, and the stopper plate 2 is a resin molded body. The stopper plate 2 is made of a resin material having a high toughness such as an ABS resin.
[0029]
The hinge plate 1 includes a hinge plate body 15 having a rectangular horizontal plate shape that is long in the left and right directions, a hinge pin 11 and a guide pin 12. From the rear edge of the hinge plate body 15, a vertically bent downwardly extending attachment portion 16 extends, and a screw 54 is provided at a position from the front end of the horizontal partition wall 51 of the refrigerator to the front end of the housing 52. (FIG. 6). Note that a drawer-type door 53 is located below the hinge portion 10.
[0030]
A through hole 15a is provided along the front edge of the hinge plate body 15 at the corner at the outer end in the left-right direction (the right end in the figure), and the round bar-shaped hinge pin 11 is pushed into the through hole 15a and fixed. Is done. At this time, since the flange portion 11a of the hinge pin 11 abuts on the upper surface of the hinge plate body 15, the hinge pin 11 does not excessively protrude to the lower surface side of the hinge plate body 15.
[0031]
Along the front edge of the hinge pin 15, a guide pin 11 is integrally provided at a corner at an inner end in the left-right direction (left end in the figure) and protrudes upward.
[0032]
On the other hand, the stopper plate 2 includes a rectangular stopper plate main body 25 corresponding to the hinge plate main body 15, and a pin receiving recess 21 projecting from the upper surface into the fitting hole 31 of the revolving door 3 in a cap shape. The pin receiving concave portion 21 is provided at a laterally outer (right side in the figure) and forward (front side) corner of the rectangular plate-shaped stopper plate main body 25, and the locking pin 26 is provided at a laterally inner front corner. Is provided.
[0033]
In the illustrated example, the rectangular plate-shaped stopper plate main body 25 further includes a rectangular thin plate portion 25a and a number of rib-like protrusions 25b, 27, and 28 protruding downward. The rib-like projections are provided at the contour of the stopper plate main body 25 and at predetermined positions inside the stopper plate main body 25, but are omitted at the outer edge in the left-right direction.
[0034]
The cap-shaped pin receiving recess 21 has a long hole shape when viewed from the hinge pin 11, and therefore has a peripheral wall portion 21 a having a long cross section in the horizontal direction. In the illustrated example, the cross section in the horizontal direction has an elliptical or track-like contour. The inner peripheral surface of the elongated hole-shaped peripheral wall portion 21 a has a widthwise dimension corresponding to the outer diameter of the hinge pin 11.
[0035]
That is, the hinge pin 11 can be displaced while being engaged with the inner surface of the elongated hole-shaped peripheral wall portion 21a, and the direction in which such displacement can be performed is variable with the rotation of the stopper plate 2 and the rotating door 3. It has become.
[0036]
Actually, since the hinge pin 11 is fixed to the refrigerator main body, the fulcrum of the rotation of the stopper plate 2 and the rotating door 3 can be displaced with respect to the hinge pin 11. That is, the fulcrum of the rotation of the revolving door 3 can be shifted from the position of the hinge pin 11 by a specific dimension.
[0037]
The pin receiving recess 21 may have a long hole shape only on the inner peripheral surface, and the outer peripheral surface may have a circular cross section corresponding to the inner peripheral surface of the fitting hole 31. Further, the cross-sectional shape of the inner peripheral surface is not limited to the elliptical shape, and may be, for example, a shape having a slight curve as a whole, that is, a substantially V shape.
[0038]
On the other hand, an end surface on the inner side in the left-right direction (left side in the figure) of the stopper plate 2 forms a guide surface 22 having a cam portion 23. A rib 24a is provided below the stopper plate main body 25 and extends along the front edge portion. From the rib 24a, further, a J-shaped lip portion 24 extends inward in the left-right direction of the refrigerator. Has been extended. The tip of the lip portion 24 is locked by a notch portion 14 provided on an inner end face in the left-right direction of the hinge plate main body 15 to perform a stopper function. More specifically, a stopper function for holding the rotating door 3 in a closed state is performed.
[0039]
As shown in FIGS. 2 and 6, fitting holes 31 and 36 are provided in the mounting portion 35 at the lower end of the revolving door 3, and the hinge receiving recess 21 and the locking pin projecting upward from the stopper plate main body 25. 26 is pushed into these fitting holes 31 and 36 and fixed.
[0040]
The plan view of FIG. 3 shows a state in which the lip portion 24 of the stopper plate 2 is locked to the indented portion 14 of the hinge plate 1 with the revolving door 3 closed. At this time, the indentation surface of the cam portion 23 of the stopper plate 2 circumscribes the guide pin 12 of the hinge plate 1. Further, in a state where the revolving door 3 is closed, the elongated hole-shaped peripheral wall portion 21a faces a direction slightly inclined from the left-right direction of the refrigerator. In the illustrated example, the inclination is approximately 15 °. At this time, the hinge pin 11 is at the outermost limit position in the left-right direction in the elongated hole-shaped peripheral wall portion 21a.
[0041]
FIG. 4 is a plan view showing a state where the revolving door 3 is started to be opened. At this time, the lip portion 24 comes off the indented portion 14 and the cam portion 23 moves over the guide pin 12 and moves outward. At this time, the stopper plate 2 is pushed outward in the left-right direction of the refrigerator by the cam action between the cam portion 23 and the guide pin 12. As a result, the hinge pin 11 comes to a limit position on the inner side in the left-right direction in the elongated hole-shaped peripheral wall 21a.
[0042]
Therefore, the fulcrum of the revolving door 3 is displaced outward in the left-right direction when the revolving door 3 starts to be opened. That is, in the double-door type revolving door, the position is shifted so as to be separated from the other revolving door. Conversely, when the revolving door 3 is closed, the reverse positional shift occurs immediately before the revolving door 3 is completely closed.
[0043]
When the left and right revolving doors 3 abut against each other via the gasket 56, the opening / closing operation can be performed without causing undesired rubbing of the gasket due to such misalignment. Further, when one of the revolving doors 3 is opened, the other revolving door 3 can be prevented from being stuck and opened.
[0044]
Next, a hinge part 10 'according to the second embodiment will be described with reference to FIGS.
[0045]
The hinge portion 10 'of the second embodiment has the same configuration as the hinge portion 10 of the first embodiment, except that a contact projection 17 protruding upward is provided at a rear corner on the left and right outer sides of the hinge plate 1'. . The contact projection 17 is provided such that the inner surface in the left-right direction abuts against a contact portion 27 provided at a position corresponding to the stopper plate 2. When the revolving door 3 starts to be opened, the abutment projection 17 and the abutment portion 27 are abutted against each other, so that the stopper plate 2 can easily perform the movement using the abutted portion as a fulcrum. It is.
[0046]
In the illustrated example, the stopper plate 2 is exactly the same as that of the first embodiment.
[0047]
As shown in FIG. 7, the position where the contact protrusion 17 and the contact portion 27 are provided is determined according to the position where the cam action is performed and the position and the direction of the elongate peripheral wall portion 21a. Specifically, first, a line L2 perpendicular to the mutual movement direction L1 is drawn through the location where the guide pin 12 and the cam portion 23 act. Next, after taking the bisecting point of the position where the hinge pin 11 and the elongated hole-shaped peripheral wall portion 21a slide and move, a line L4 passing through the bisecting point and perpendicular to the sliding direction L3 is taken. pull. Then, a point C1 at which these L2 and L4 intersect is determined.
[0048]
If the contact projections 17 and the contact portions 27 are provided on the hinge plate 1 and the stopper plate 2 and the positions of these joints are determined as described above, the cam action between the guide pin 12 and the cam portion 23 can be achieved. Is effectively used for the mutual displacement between the hinge pin 11 and the long hole-shaped peripheral wall portion 21a with the butting portion as a fulcrum.
[0049]
Therefore, with the configuration of the second embodiment, when the revolving door 3 starts to be opened, the revolving door 3 can be reliably and smoothly shifted outward in the left-right direction. Therefore, it is particularly suitable for a double-door type revolving door.
[0050]
Next, a hinge part 10 ″ according to the third embodiment will be described with reference to FIGS.
[0051]
In the third embodiment, a guide member 4 including a ring-shaped portion 45 and an extending portion 46 extending to one side is attached to the hinge plate 1. The other points are exactly the same as the hinge part 10 of the first embodiment.
[0052]
The attachment of the guide member 4 to the hinge plate main body 15 is performed simultaneously with the attachment of the hinge pin 11. That is, the root portion 11b of the hinge pin 11 is pushed into the hole 45a of the ring-shaped portion 45, and at the same time, is pushed into the through hole 15a of the hinge plate main body 15, and is fixed by a caulking method.
[0053]
The extending portion 46 from the guide member 4 expands in a fan shape from the ring-shaped portion 45 toward the rear, and an arc-shaped slit 48 is provided in the middle of the fan-shaped portion from the outside in the left-right direction (right side in the figure). It has such a shape. The arc-shaped slit 48 has an arc shape centered on the axis of the hinge pin 11.
[0054]
When the hinge plate 1 and the stopper plate 2 are rotated by a predetermined angle or more, that is, when the revolving door 3 is opened by a predetermined angle or more with respect to the refrigerator main body 50, the arc-shaped slit 48 is provided on the lower surface side of the stopper plate 2. The arc-shaped guide wall 28 protruding from the front end is inserted. In the illustrated example, the arc-shaped guide wall 28 protrudes vertically downward along the edge of the rounded corner near the pin receiving recess 21 and is provided as a relatively thin rib-shaped projection.
[0055]
FIG. 11 shows a state in which the revolving door 3 is widely opened and the arc-shaped guide wall 28 of the stopper plate 2 is inserted into the arc-shaped slit 48 of the guide member 4. As shown in the figure, the arc-shaped guide wall 28 of the stopper plate 2 has an arc shape centered on the axial center position C2 of the hinge pin 11 after the displacement. That is, after the arc-shaped guide wall 28 starts to enter the arc-shaped slit 48 of the guide member 4, the fulcrum of the rotation of the stopper plate 2 and the revolving door 3 is stably maintained in a state of being displaced with respect to the hinge pin 11. .
[0056]
Further, in the state specifically shown in FIG. 11, the tip of the arc-shaped guide wall 28 is abutted against the innermost part of the arc-shaped slit 48, thereby performing a stopper action for preventing the revolving door 3 from being excessively opened. I have.
[0057]
On the other hand, the fan-shaped extending portion 46 with the slit from the guide member 4 further extends from the corner outside the entrance of the slit 48 to a contacting projection 47 projecting further to the rear side of the refrigerator. Is provided. The contact projection 47 plays the same role as that described for the contact projection 17 in the hinge portion 10 ′ of the second embodiment, and is located at a position where it abuts against the contact portion 27 of the stopper plate 2. Is set in exactly the same manner as described above.
[0058]
Next, a hinge part 10 ″ ′ according to a fourth embodiment will be described with reference to FIGS.
[0059]
In the same configuration as that of the third embodiment, the hinge plate 1 "" is not provided with a guide pin, and the hinge plate main body 25, which is a horizontal plate-like portion of the hinge plate 1 "", is provided with the hinge pin 11 and the guide member 4. And the projection 19 for providing the indented portion 14 for locking the lip portion 24, and the space between them is omitted. The surface on the hinge pin side of the projection 19 forms a guide portion 12 ′ that replaces the guide pin 12.
[0060]
On the other hand, the stopper plate 2 "'has the guide surface 22 and the cam portion 23 provided at the same height as the lip portion 24. That is, not the edge of the stopper plate body 25, but the lower surface of the stopper plate body 25. The lip portion 24 is provided at the same height position by a portion extending downward.
[0061]
Therefore, when the revolving door 3 is closed, the locking is performed such that the lip portion 24 and the guide surface 22 sandwich the projection 19 of the hinge plate 1 from the left and right. When the revolving door 3 starts to be opened, the fulcrum of rotation of the revolving door 3 is set to the same position as in each of the above embodiments by the cam action between the guide portion 12 ′ of the projection 19 and the guide surface 22. Cause a gap.
[0062]
According to the fourth embodiment, since the guide pin 12 can be omitted, the height dimension for the hinge portion can be reduced as described below, and the revolving door 3 and the lower portion thereof can be reduced. The distance between the door 53 and the door 53 can be reduced.
[0063]
13, the height dimension d2 from the upper surface of the lip portion 24 to the revolving door 3 is only the alignment margin between them in the hinge portion 10 ″ ′ of the fourth embodiment. This is because the member belonging to the revolving door 3 can be embedded in the revolving door 3.
[0064]
On the other hand, in the hinge part 10 of the first embodiment shown in FIG. 6, the dimension d1 is obtained by combining the size of the guide pin 12 of the hinge plate 1 projecting with the positioning margin.
[0065]
Next, the hinge part 10 of the fifth embodiment ^* A refrigerator 50 'including the same will be described with reference to FIGS.
[0066]
The refrigerator 50 'here has a one-sided rotating door 3' that is not a double-door type.
[0067]
Hinge part 10 of Embodiment 5 ^* In the configuration similar to that of the hinge part 10 of the first embodiment, when the revolving door is started to be opened, the fulcrum of the revolving door 3 'is immediately shifted to the front of the refrigerator.
[0068]
As shown in FIG. 14, at the time when the revolving door 3 'starts to be opened, the elongated hole-shaped peripheral wall portion 21a is slightly inclined from the front-rear direction of the refrigerator.
[0069]
Further, at this time, the guide pin 12 and the cam portion 23 of the guide surface 22 are disposed rearward on the side closer to the hinge pin 11 than the lip portion 24 and the piercing portion 14. The location where the guide pin 12 and the cam portion 13 perform the cam action is located near an extension line extending rearward along the longitudinal direction of the elongated hole-shaped peripheral wall portion 21a at the time of the cam action, and The direction of cam action is also substantially along this extension line.
[0070]
In the specific example shown in the drawing, when the revolving door 3 is closed, the elongated hole-shaped peripheral wall portion 21a is oriented inward in the left-right direction by about 15 ° from the front-rear direction. In addition, the guide pin 12 is located at a position about 30 degrees inward from the front-rear direction when viewed from the hinge pin 11. Then, when the revolving door 3 is rotated about 15 ° from the closed state, that is, when the cam action between the guide pin 12 and the cam portion 23 is performed, the slot-shaped peripheral wall portion 21a is moved in the direction of the guide pin 12, That is, it is oriented in the direction in which the force by the cam action is generated.
[0071]
In this manner, when the revolving door 3 is started to be opened from the closed state, the revolving door is smoothly pulled out forward, so that the gasket located on the outer side in the left-right direction from the fulcrum of rotation is not rubbed. Can be reduced or prevented. Further, when the revolving door 3 is closed, the revolving door 3 is brought into close contact with the refrigerator main body, so that more reliable sealing can be performed.
[0072]
In the illustrated embodiment, the hinge plate main body 15 is separated into a left-right outer portion 15m in which the hinge pin 11 and the guide pin 12 are arranged, and a left-right inner portion 15n in which the indented portion 14 is provided. The space is trapezoidal.
[0073]
Finally, the hinge part 10 of the sixth embodiment ^** Will be described with reference to FIGS.
[0074]
Hinge part 10 of Embodiment 6 ^** Is the hinge 10 of the fifth embodiment. ^* In the configuration similar to the above, the position of the guide pin 12 and the cam portion 23 and the position and shape of the guide surface 22 are different.
[0075]
Hinge part 10 of Embodiment 6 ^** The refrigerator 50 ″ is configured such that when the revolving door 3 is opened by about 90 °, the fulcrum of the revolving door 3 ″ is shifted to the maximum forward of the refrigerator.
[0076]
First, the guide pin 12 is provided behind the hinge pin 11, and the guide surface 22 is formed close to the pin receiving recess 21 and oriented along this edge.
[0077]
In the specific example shown in the drawing, the guide pin 12 is provided at a position slightly outside in the left-right direction than straight behind when viewed from the hinge pin 11. The elongated hole-shaped pin receiving recess 21 faces the longitudinal direction of the stopper plate 2, that is, the direction of the surface of the rotating door 3. Further, the cam portion 23 in the guide surface 22 is provided at an outer lateral end of the pin receiving recess 21.
[0078]
Therefore, when the revolving door 3 is opened to about 90 °, the revolving door 3 ″ is pushed to the near side by the cam action between the guide pin 12 and the cam portion 23. , FIG. 18 schematically.
[0079]
The schematic plan view of FIG. 18 shows a state where the vertically movable shelf mechanism 59 slightly projects forward.
[0080]
The chain line indicated by 3 "a in the drawing indicates the contour of the end of the revolving door when there is no forward displacement. If there is no forward displacement, the pocket inside the revolving door or its storage is stored. The object and the vertically movable shelf mechanism 59 interfere with each other, so that the vertically movable shelf mechanism 59 can be used when the revolving door is opened by about 90 °, the shelf mechanism is usually used. It was necessary to omit the front part of the 59 shelves.
[0081]
However, according to the present embodiment, this is not necessary, and the area of the shelf mechanism 59 can be increased. In particular, it can be realized with a simple and reliable member configuration without requiring a complicated mechanism.
[0082]
【The invention's effect】
When opening and closing the revolving door, the fulcrum of the revolving door can be moved without increasing the number of members required for the hinge portion. This allows the revolving door to move outward in the left-right direction when it begins to open.In this case, even if the double door opening left and right doors are directly struck through the gasket, the other door is It is possible to reduce or prevent a problem such as being stuck and opened.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a hinge part according to a first embodiment as viewed obliquely from above.
FIG. 2 is an exploded perspective view of the hinge portion of the first embodiment as viewed obliquely from below.
FIG. 3 is a plan view showing the hinge portion of the first embodiment when the revolving door is closed.
FIG. 4 is a plan view showing a state of the hinge part of the first embodiment when the revolving door starts to be opened.
FIG. 5 is a plan view of a double door type revolving door such as the first embodiment.
FIG. 6 is a front view of a hinge portion according to the first embodiment.
FIG. 7 is a plan view for explaining a position of providing a contact portion for assisting positional displacement of the hinge portion according to the second embodiment.
FIG. 8 is an exploded perspective view of a hinge part according to the second embodiment.
FIG. 9 is an exploded perspective view of the hinge portion of the third embodiment as viewed from obliquely above.
FIG. 10 is an exploded perspective view of the hinge portion of the third embodiment as viewed obliquely from below.
FIG. 11 is a plan view illustrating a state in which a revolving door is opened by more than 90 ° with respect to a hinge portion according to a third embodiment.
FIG. 12 is an exploded perspective view of the hinge portion of the third embodiment as viewed from obliquely above.
FIG. 13 is a front view corresponding to FIG. 6 of a hinge according to a third embodiment.
FIG. 14 is a plan view showing a hinge portion of the fourth embodiment when the revolving door is closed and when the revolving door starts to open.
FIG. 15 is a plan view corresponding to FIG. 5 for describing a refrigerator according to a fourth embodiment.
FIG. 16 is a plan view showing the hinge portion of the fifth embodiment when the revolving door is closed.
FIG. 17 is a plan view showing a state in which the revolving door is opened by about 90 ° with respect to the hinge part of the fifth embodiment.
FIG. 18 is a plan view corresponding to FIG. 15 for describing a refrigerator according to a fifth embodiment.
[Explanation of symbols]
1 hinge plate
11 Hinge pin
12 Guide pins
14 Bay entry where lip is locked
2 Stopper plate
21 Pin-shaped recess for oblong pin
21a Peripheral wall of pin receiving recess
22 Guide surface
23 Cam part
24 Lip part

Claims (12)

In a refrigerator, each hinge part supporting the revolving door from above and below on one side includes a first member provided with a hinge pin, and a second member provided with a pin receiving recess for receiving the hinge pin.
The pin receiving recess has a long hole shape, and is slidable along the longitudinal direction with the hinge pin,
The first and second members are provided with first and second guide portions, respectively, for moving the position of the hinge pin in the elongated hole-shaped pin receiving recess by a mutual cam action, and thereby, A refrigerator characterized in that the fulcrum of the revolving door is displaced in the left-right direction or the front-rear direction in accordance with the opening and closing operation of the revolving door. The first and second members are provided with first and second stopper portions for holding the revolving door in a closed state or at a predetermined rotation angle by the same or different portions as the first and second guide portions. The refrigerator according to claim 1, wherein: The first and second members are provided with first and second contact portions that contact each other when the revolving door starts to be opened from the closed state, respectively.
When the first and second abutment parts start opening from the closed state of the revolving door,
A vertical line extending perpendicularly to the direction of these mutual movements from the point where the first and second guide portions cause camming;
5. The method according to claim 4, wherein the hinge pin and the pin receiving recess are provided near an intersection where a vertical line extending perpendicularly to a direction of the mutual movement intersects with a point where the hinge pin and the pin receiving recess slide with each other. 3. The refrigerator according to 1 or 2. The first and second members are provided with third and fourth guide portions, respectively, for holding the revolving door in a state after the displacement when the revolving door is opened by a predetermined angle or more,
The third and fourth guide portions are provided so as to be slidable with each other along an arc centered on a fulcrum of the rotating door after the displacement. refrigerator. The first and second members are provided with third and fourth contact portions for restricting rotation between them by a predetermined angle or more, respectively.
The first contact portion, the third guide portion, and the third contact portion are attached to the first member or provided by one raised portion extending from the first member. The refrigerator according to claim 4, characterized in that: The ridge is provided by an extension from the ring member;
The root of the hinge pin is inserted and fixed in a hole of the main body of the first member, and the ring member is fixed to the main body of the first member together with the hinge pin through the root of the hinge pin. The refrigerator according to claim 5, wherein The first and second guide portions are provided at a position farther from the revolving door than a surface on which the horizontal plate-shaped main portions of the first and second members slide, or a gap therebetween. The refrigerator according to any one of claims 1 to 5, wherein When starting to open the revolving door from the closed state, the elongated hole-shaped pin receiving recess faces in a direction closer to the front-rear direction than the left-right direction of the refrigerator, and at this time, the first and second guide portions The refrigerator according to claim 1 or 2, wherein a cam action that causes the displacement is performed in the vicinity of a portion extending in the longitudinal direction from the pin receiving recess. 2. The refrigerator according to claim 1, wherein, when the revolving door is rotated by approximately 90 degrees from the closed state, the elongated hole-shaped pin receiving concave portion is oriented in the front-rear direction, and the displacement is maximized. When the revolving door is rotated by approximately 90 ° from the closed state, the first and second guides cause the positional deviation in the vicinity of a location extending in the longitudinal direction from the elongated pin-shaped receiving recess. 9. The refrigerator according to claim 8, wherein the refrigerator performs an action. The left and right revolving doors are abutted against each other via a gasket when they are closed. The refrigerator according to any one of claims 1 to 6, which is performed. In a hinge mechanism including a first member having a hinge pin and a second member provided with a pin receiving recess for receiving the hinge pin,
The pin receiving recess has a long hole shape, and is slidable along the longitudinal direction with the hinge pin,
The first and second members are provided with first and second guide portions, respectively, for moving the position of the hinge pin in the elongated hole-shaped pin receiving recess by a mutual cam action, and thereby, A hinge mechanism for causing a rotational fulcrum of the first or second member to be displaced in the left-right direction or the front-rear direction with the mutual rotation of the first and second members.

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