阅读说明：本技术 冰箱 (Refrigerator with a door ) 是由 冨泽孝仁 燕鹏 于 2020-01-06 设计创作，主要内容包括：技术问题：提供一种能够简单地将一对铰链轴安装于一对轴承的冰箱。解决方案：具有：配置于冷藏室(14)的冰鲜室(42)的顶板面(58)、从顶板面(58)突出的左右一对的左轴承(132)和右轴承(134)、从冰鲜室(42)的罩盖(90)的两端向外方突出的左铰链轴(140)和右铰链轴(142)、以及从右轴承(134)向外方倾斜地突出并沿着内表面将右铰链轴(142)引导至轴孔(154)的导向片(156)。(The technical problem is as follows: provided is a refrigerator capable of simply mounting a pair of hinge shafts on a pair of bearings. The solution is as follows: comprising: the refrigerator comprises a top plate surface (58) of a fresh ice chamber (42) arranged in a refrigerating chamber (14), a left bearing (132) and a right bearing (134) which are a pair and protrude from the top plate surface (58), a left hinge shaft (140) and a right hinge shaft (142) which protrude outwards from two ends of a cover (90) of the fresh ice chamber (42), and a guide piece (156) which protrudes outwards from the right bearing (134) in an inclined mode and guides the right hinge shaft (142) to a shaft hole (154) along the inner surface.)

1. A refrigerator, having:

a storage chamber;

a rotating member supporting portion disposed in the storage chamber;

a pair of bearings protruding from the rotating member supporting part;

a rotating member rotatably disposed between the pair of bearings;

a pair of hinge shafts which protrude outward from both ends of the rotating member and engage with shaft holes of the pair of bearings from the inside; and

and a guide piece which is obliquely projected outwards from the bearing and guides the hinge shaft to the shaft hole along the inner surface.

2. The refrigerator according to claim 1,

the rotating member support part is a shelf disposed in the storage chamber,

a container is disposed under the shelf,

the rotating member is a cover covering the front of the container,

a pair of left and right bearings protrudes forward from a front end portion of the shelf,

the pair of left and right hinge shafts protruding from upper ends of both left and right sides of the rotating member are rotatably engaged with the pair of left and right bearings from inside.

3. The refrigerator according to claim 2,

a freezing and refreshing chamber is formed under the shelf,

the container is a draw-out type container stored in the fresh ice chamber,

the cover forms a front wall of the fresh food compartment.

4. The refrigerator according to any one of claims 1 to 3,

a guide groove extending from a front end to the shaft hole is formed in the inner surface of the guide piece.

5. The refrigerator according to any one of claims 1 to 3,

when the rotating member is arranged in parallel with the rotating member supporting portion and the pair of hinge shafts is arranged between the pair of bearings, the front end of the guide piece is located outside the front end of the hinge shaft.

6. The refrigerator according to any one of claims 1 to 3,

the inclination angle of the guide piece is 5 ° to 45 ° with respect to the rotation axis direction of the hinge shaft.

7. The refrigerator according to any one of claims 1 to 3,

a bent piece protruding from the rotating member is provided,

the hinge shaft protrudes outward of the front end of the bent piece,

a constricted portion is formed between the rotating member and the hinge shaft on the bent piece.

8. The refrigerator according to any one of claims 1 to 3,

the cross section of the hinge shaft is cross-shaped, and four protrusions are formed at intervals of 90 degrees,

one of the projections is in contact with an inner surface of the guide piece.

9. The refrigerator according to claim 4,

the shaft hole is formed on an extension line of a groove wall of the guide groove.

10. The refrigerator according to any one of claims 1 to 3,

the guide piece is formed on at least one of the pair of bearings.

Technical Field

Embodiments of the present invention relate to a refrigerator.

Background

A refrigerating chamber of the refrigerator is provided with a freezing chamber, and a cover is arranged at the front part of the freezing chamber. The pair of left and right hinge shafts protrude from the upper end of the cover, and engage with a pair of left and right bearings protruding from the ceiling surface of the fresh ice compartment, so that the cover can be opened and closed freely.

Disclosure of Invention

Technical problem to be solved

In the cover having the pair of left and right hinge shafts as described above, the operation of attaching the pair of left and right hinge shafts to the pair of left and right bearings is difficult, and there is a problem that the attachment cannot be performed well and the parts are broken.

Accordingly, an object of an embodiment of the present invention is to provide a refrigerator capable of simply mounting a pair of hinge shafts to a pair of bearings.

(II) technical scheme

An embodiment of the present invention is a refrigerator having: a storage chamber; a rotating member supporting portion disposed in the storage chamber; a pair of bearings protruding from the rotating member supporting part; a rotating member rotatably disposed between the pair of bearings; a pair of hinge shafts which protrude outward from both ends of the rotating member and engage with shaft holes of the pair of bearings from the inside; and a guide piece which is obliquely projected outward from the bearing and guides the hinge shaft to the shaft hole along an inner surface.

Drawings

Fig. 1 is a front view of a refrigerator according to an embodiment of the present invention.

Fig. 2 is a longitudinal sectional view of the refrigerator.

Fig. 3 is a front view of the fresh food compartment.

Fig. 4 is a perspective view of the upper container.

Fig. 5 is a right side view of the upper container.

Fig. 6 is a left side view of the upper container.

Fig. 7 is a perspective view of the ceiling surface and the cover of the ice fresh compartment and an enlarged view of the left bearing.

Fig. 8 is a longitudinal sectional view of the left side of the cover.

Fig. 9 is a longitudinal sectional view of the right side of the cover.

Fig. 10 is a perspective view from the outside of the right side of the cover.

Fig. 11 is a perspective view from the inside of the right bearing.

Fig. 12 is a perspective view from the rear outside in a state where the right hinge shaft is attached to the right bearing.

Fig. 13 is a longitudinal sectional view of a state where the right hinge shaft abuts against the guide piece.

Fig. 14 is a longitudinal sectional view of a state where the right hinge shaft is moved along the guide piece.

Fig. 15 is a longitudinal sectional view of a state where the right hinge shaft is engaged with the shaft hole of the right bearing.

Fig. 16 is an enlarged view of the right side of a state where the right hinge shaft is moved along the guide piece.

Fig. 17 is a view of the right side with the right hinge shaft engaged with the shaft hole of the right bearing.

Fig. 18 (a) shows a first modification of the right bearing, and (b) shows a second modification of the right shaft hole.

Fig. 19 is a longitudinal sectional view of the freezing chamber in a state of receiving the upper container.

Fig. 20 is a longitudinal sectional view of the freezing chamber in a state where the upper container is slightly withdrawn.

Fig. 21 is a longitudinal sectional view of the ice compartment in a state where the upper container is further extracted.

Fig. 22 is a longitudinal sectional view of the freezing chamber in a state where the upper container is maximally drawn out.

Fig. 23 is a longitudinal sectional view of the ice chamber in a state where the cover is installed with the contact on the restricting piece.

Description of the reference numerals

10-a refrigerator; 14-a refrigerating chamber; 42-a refrigerated chamber; 58-ceiling surface; 90-cover lid; 132-left bearing; 134-right bearing; 140-left hinge axis; 142-right hinge axis; 146-a through hole; 148-curved pieces; 150-a protrusion; 152-necking down; 154-shaft hole; 156-a guide tab; 158-guide groove.

Detailed Description

Hereinafter, a refrigerator 10 according to an embodiment will be described with reference to fig. 1 to 23.

(1) Structure of refrigerator 10

The structure of the refrigerator 10 will be described with reference to fig. 1 to 3. Fig. 1 is a front view of the refrigerator 10, and fig. 2 is a longitudinal sectional view viewed from a side of the refrigerator 10.

As shown in fig. 1 and 2, the casing 12 of the refrigerator 10 is an insulated box body formed of an inner box and an outer box, and an insulating material is filled therebetween. The housing 12 includes a refrigerating compartment 14, a vegetable compartment 16, a small freezing compartment 18, and a freezing compartment 20 in this order from the top, and an ice-making compartment 21 is provided beside the small freezing compartment 18. A horizontal insulating partition 36 is provided between vegetable compartment 16 and small-sized freezer compartment 18 and ice making compartment 21. The fresh food compartment 14 and the vegetable compartment 16 are separated by a horizontal partition 38. A left door 14a and a right door 14b of a double door type are provided on a front surface of refrigerating room 14, a vegetable door 16a of a drawer type is provided in vegetable room 16, and doors 18a, 20a, and 21a of a drawer type are provided in small-sized freezing room 18, freezing room 20, and ice making room 21, respectively.

A plurality of glass shelves 40 are horizontally provided in the refrigerating compartment 14, and a fresh-ice compartment 42 is provided at a lower portion thereof. A plurality of door pockets 44 are provided on the rear surfaces of the left and right doors 14a, 14b of the refrigerating compartment 14. The ice fresh compartment 42 will be described in detail later. A vegetable container 46 of a pull-out type is provided in the vegetable compartment 16.

A refrigerating evaporator (hereinafter, referred to as "R evaporator") 28 is provided from a lower portion of the rear surface of the refrigerating chamber 14 to the rear surface of the vegetable chamber 16, and a refrigerating blower (hereinafter, referred to as "R blower") 30 is provided thereunder. The R evaporator 28 and the R blower 30 are disposed in an R evaporator chamber 29, which is a cooling chamber surrounded by an evaporator cover 48.

Cold air duct 50 extends upward from R evaporator chamber 29 along the back surface of refrigerating compartment 14, and a plurality of air outlets 52 are provided in cold air duct 50, and cold air is blown out from air outlets 52 into refrigerating compartment 14. A blow-out port 54 is also provided on the rear surface of the fresh air chamber 42, and blows out cold air into the fresh air chamber 42.

A freezing evaporator (hereinafter, referred to as "F evaporator") 32 is provided in an F evaporator chamber 31 extending from the rear surfaces of the small freezing chamber 18 and the ice making chamber 21 to the rear surface of the freezing chamber 20, and a freezing blower (hereinafter, referred to as "F blower") 34 is provided above the freezing evaporator chamber. A defrosting heater, not shown, is provided below the F evaporator 32.

A machine chamber 22 is provided in the bottom of the rear surface of the casing 12, and a compressor 24 and the like constituting a refrigeration cycle are mounted thereon. A control panel 26 is provided on the upper portion of the rear surface of the machine room 22.

(2) Refrigerating chamber 42

Next, the fresh cooling chamber 42 will be described with reference to fig. 2 to 19. As shown in fig. 2 and 3, the fresh food compartment 42 is disposed at the bottom right side of the refrigerating compartment 14, and a water tank 56 is provided at the left side thereof. The water tank 56 is used to supply water for ice making to an ice making tray of an ice making device provided inside the ice making chamber 21.

As shown in fig. 3, the fresh food compartment 42 is formed by a ceiling surface 58, a left side surface 60, a right side surface 62, a bottom surface 64, and a rear surface, and is open forward. Inside the fresh air compartment 42, an upper container 72 and a lower container 74 made of synthetic resin are arranged in two stages, i.e., upper and lower. The left side 60 also serves as a partition member from the water tank 56, and the right side 62 also serves as a right side of the refrigerating compartment 14. As shown in fig. 7, the ceiling surface 58 is disposed horizontally, and includes a frame member 68 made of synthetic resin and a rectangular glass plate 70 disposed inside the frame member 68. A cover 90 is rotatably provided at the front end of the top plate surface 58 to cover the upper front of the upper container 72.

As shown in fig. 4, the upper container 72 has a disk shape including a left side surface 76, a right side surface 78, a front surface 80, a rear surface 82, and a bottom surface 84, and is open at the upper side. In the central lower portion of the front surface 80 of the upper container 72, a handle portion 86 is cut out.

In the front portion of the left side surface 76 of the upper case 72, as shown in fig. 4 and 5, the left bulging portion 92 extends upward. On the outer peripheral surface of the left bulging portion 92, a guide portion 94 is provided in a protruding strip in the front-rear direction. The guide portion 94 is provided so as to be downward toward the front. When the rear portion of the guide portion 94 is inclined more gently than the front portion and is substantially horizontal, the left bulging portion 92 is continuous with the flange portion 96 of the left side surface 76. A step piece 98 is continuously provided at the front end of the guide portion 94. The step piece 98 is inclined sharply downward toward the front as compared with the inclination of the guide portion 94, and is substantially horizontal at the height of the front surface 80 and continuous with the upper end portion of the front surface 80. As shown in fig. 4 and 5, the regulating piece 100 is provided in a protruding strip in front of the upper edge of the left bulging portion 92 and above the guide portion 94. The restricting pieces 100 have the same length as the inclined portion of the guide portion 94, and are arranged in parallel. The front end of the regulating piece 100 is bent downward to form a bent portion 102. A space 104 is provided between the lower end of the bent portion 102 and the tip end of the guide portion 94 and the step piece 98. A rail protrusion 106 is provided in the front-rear direction below the guide portion 94 on the left side surface 76 of the upper case 72.

As shown in fig. 6, a right bulging portion 108 is provided in front of the right side surface 78 of the upper case 72, and a right guide portion 110 is provided in bilateral symmetry with the left guide portion 94. A flange 112 is provided from the rear end of the guide portion 110, and a step 114 is provided from the front end. The right regulating piece 116 is shorter than the left regulating piece 100, and is provided only above the step portion 114 and above the front portion of the guide portion 110. Further, a bent portion 118 is provided at the tip end portion of the right regulating piece 116. A rail protrusion 120 is also provided on the right side surface 78 in the front-rear direction.

A pair of left and right rails 61, 61 are provided on the left and right side surfaces 60, 62 of the fresh air compartment 42 in the front-rear direction, and a pair of left and right rail protrusions 106, 120 move in the front-rear direction along the rails. Thereby, the upper container 72 is movable in the front-rear direction inside the fresh air compartment 42 and can be drawn out.

The lower container 74 is in the shape of a rectangular plate in plan view, is placed on the bottom surface 64 of the fresh ice compartment 42, and is capable of being drawn out forward. Further, a handle portion 88 is cut out at the central upper portion of the front surface of the lower container 74.

(3) Cover cap 90

Next, the cover 90 will be described with reference to fig. 3 and 8 to 16. The cover 90 is rectangular, as shown in fig. 3, has the same width as the ceiling surface 58 of the fresh food compartment 42 (the lowermost shelf of the refrigerating compartment 14), and has a height from the ceiling surface 58 to the upper end of the front surface 80 of the upper container 72.

First, as shown in fig. 7, a pair of left and right bearings 132 and 134 for suspending the cover 90 protrude forward from the front end of the ceiling surface 58 of the fresh air compartment 42.

As shown in fig. 7 to 9, the rectangular frame member 122 of the cover 90 is integrally molded with the glass plate 124, and the outer edge portion of the glass plate 124 is covered with the inner edge portion of the frame member 122. The glass plate 124 is used in JIS R3206: 2003. Further, tempered glass in a broad sense including the JIS standard may be used. The glass plate 124 is colorless and transparent, and allows food stored in the upper container 72 to be seen through.

As shown in fig. 3, both left and right upper end portions of the frame member 122 of the cover 90 are recessed inward, and the recessed portions 136, 138 are formed. The left hinge shaft 140 horizontally protrudes outward from the left recess 136, and is engaged with the shaft hole of the left bearing 132. The right hinge shaft 142 horizontally protrudes from the right recess 138, and is engaged with the shaft hole of the right bearing 134. The left bearing 132 of the ceiling surface 58 is fitted into the left recess 136 of the cover 90 on the left side, and the right bearing 134 is fitted into the right recess 138 on the right side. Thus, the left bearing 132 and the right bearing 134 do not protrude from the cover 90. Hereinafter, a structure in which the right hinge shaft 142 is engaged with the right bearing 134 will be described in detail.

As shown in fig. 9 and 10, an inverted U-shaped through hole 146 is formed in the vertical surface 144 of the right recess 138. The through hole 146 extends linearly upward from a front lower end of the longitudinal surface 144, then curves in an arc shape at an upper end of the longitudinal surface 144, and then extends linearly downward from the upper end to the longitudinal surface 144. A bent piece 148 having only a lower end connected to the longitudinal surface 144 is formed in a portion surrounded by the through hole 146. As shown in fig. 9 and 10, the right hinge shaft 142 described above is provided to protrude from the outer surface of the bent piece 148. The right hinge shaft 142 has a cross-shaped cross section, and four protrusions 150 are provided at intervals of 90 ° as shown in fig. 10 and 17. As shown in fig. 13 to 15, the thickness of the longitudinal cross-sectional shape of the bent piece 148 gradually increases from the portion continuous with the longitudinal surface 144, and then becomes thinner. That is, the lower portion of the bent piece 148 is formed with a constricted portion 152. The position of the constricted portion 152 is formed at a position not overlapping the guide piece 156 in the shaft insertion direction, that is, below the guide piece 156. This makes it easier to bend and deform the bent piece 148.

As shown in fig. 11, a shaft hole 154 is formed through the center of the right bearing 134, and the right hinge shaft 142 is engaged therewith as shown in fig. 12 and 15. A plate-shaped guide piece 156 protrudes outward from the lower end of the shaft hole 154. As shown in fig. 15, the lower end of guide piece 156 is located at a position closer to inner side dimension B' than right bearing 134, recessed portion 138, and the right end edge of frame member 122. As shown in fig. 15, the guide piece 156 has an inclination angle of 5 ° to 45 °, preferably 20 ° to 30 °, with respect to the vertical plane, in other words, as shown in fig. 15, the inclination angle θ with respect to the rotation axis of the right hinge shaft 142 is 5 ° to 45 °, preferably 20 ° to 30 °. This range is set because if θ ° is small, the force required for insertion becomes large, and conversely, if θ ° is large, the length of the guide piece 156 becomes long. As shown in fig. 11, on the inner surface of the guide piece 156, a guide groove 158 is formed from the lower end of the guide piece 156 toward the shaft hole 154. The guide groove 158 is narrower as it approaches the shaft hole 154, and the shaft hole 154 is present on an extension line a of a groove wall 160 of the guide groove 158 (see fig. 11). When the cover 90 is disposed parallel to the top plate surface 58 and the left hinge shaft 140 and the right hinge shaft 142 are disposed between the left bearing 132 and the right bearing 134, the front end of the right hinge shaft 142 is located further inward than the lower end of the guide piece 156 by the dimension B, as shown in fig. 15. With this arrangement, when left hinge shaft 140 is engaged with bearing 132 and right hinge shaft 142 is engaged with right bearing 134, even if bending piece 148 is not bent manually, it can be bent naturally by moving guide piece 156, and right hinge shaft 142 is engaged with shaft hole 154, and the insertion property is good.

As shown in fig. 7 to 9, the triangular rotation arm portions 128, 128 protrude rearward from both left and right side portions of the frame member 122. A cylindrical contact 130 protrudes from the triangular front end portion of the rotation arm portion 128 and its inner side.

(4) Storage and extraction state of upper container 72

The storage and withdrawal state of the upper container 72 in the fresh air compartment 42 will be described with reference to fig. 3 and 19 to 22.

First, a state in which doors 14a and 14b of refrigerating compartment 14 are closed and upper and lower containers 72 and 74 are accommodated in refrigerating compartment 42 will be described. As shown in fig. 3 and 19, the front surface 80 of the upper container 72 and the front surface of the lower container 74 are arranged in parallel in the vertical direction, and the space above and in front of the upper container 72 is covered with the cover 90. At this time, the contact 130 of the rotating arm portion 128 projecting rearward from the cover 90 is positioned inside (rearward) the bent portion 102 at the front end of the regulating piece 100. The door storage box 44 provided on the rear surface of the doors 14a and 14b of the refrigerating compartment 14 is positioned in front of the fresh food compartment 42, and the rear surface of the door storage box 44 is positioned in front of the cover 90, the front surface 80 of the upper container 72, and the front surface of the lower container 74. The same is true of the right side of the upper receptacle 72.

Second, when the user opens the doors 14a, 14b, the fresh compartment 42 is revealed as in fig. 3. Therefore, the user puts his hand on the handle portion 86 of the upper container 72 and draws out only the upper container 72 forward. As shown in fig. 20, the rail protrusions 106 and 120 of the upper container 72 move forward along the rails 61 and 61. Further, since the restricting piece 100 also moves forward, the contact 130 located inside the bent portion 102 moves relatively rearward along the lower side of the restricting piece 100, and the cover 90 rotates upward about the hinge shaft 126 to start opening.

Third, when the user continues to pull out the upper container 72 forward, as shown in fig. 21, the contact 130 of the cover 90 moves further rearward along the lower portion of the restricting piece 100. At this time, since the restricting piece 100 is directed upward toward the rear (i.e., downward toward the front), the contact 130 moves upward, and the cover 90 is further opened. When the contact 130 moves between the regulating piece 100 and the guide portion 94, it slides on the upper surface of the guide portion 94 or slides on the lower surface of the regulating piece 100 according to the manner of withdrawing the upper container 72. That is, the portion where the contact 130 exists is a space between the regulating piece 100 and the guide portion 94.

Fourth, when the user draws the upper container 72 forward to the maximum extent, as shown in fig. 22, the contact 130 of the cover 90 passes over the rear end portion of the restricting piece 100, and therefore falls on the guide portion 94 from the position of the restricting piece 100. Then, the contact 130 of the cover 90 moves rearward on the guide portion 94. Further, a projection is provided at the rear end of the rail protrusion 120 in order to make the upper case 72 in a state where it cannot be pulled out until the contact 130 reaches the flange portion 96 from the rear end of the guide portion 94.

The right side surface 78 of the upper case 72 also causes the right contact 130 to perform the same operation as the left side by the guide portion 110 and the restricting piece 116. However, since the rear end portion of the regulating piece 116 is shorter than the left regulating piece 100, most of the regulating piece moves on the right guide portion 110.

When the user stores the upper case 72, the contact 130 moves forward opposite to the above.

This allows the upper container 72 to be drawn out or stored while the cover 90 is smoothly opened or closed.

(5) State when the cover 90 is mounted

The operation of the operator assembling the refrigerator 10 to mount the cover 90 will be explained.

First, the operator engages the left hinge shaft 140 of the cover 90 with the shaft hole of the left bearing 132 on the top plate 58 of the fresh food compartment 42.

Second, as shown in fig. 13, the operator abuts the right hinge shaft 142 against the lower end of the guide groove 158 at the inner surface of the guide piece 156.

Third, as shown in fig. 14, the operator moves the right hinge shaft 142 along the guide groove 158 in the direction of the shaft hole 154. In this case, since the constricted portion 152 is formed in the bent piece 148, the bent piece 148 is bent along the guide piece 156, and as shown in fig. 14 and 16, it is in contact with the protrusion 150 located above the right hinge shaft 142, and therefore, it can move smoothly. Since the constricted portion 152 is formed at a position not overlapping the guide piece 156 in the shaft insertion direction, that is, below the guide piece 156, the bent piece 148 can be bent and deformed more easily.

Fourth, when the right hinge shaft 142 is further pressed along the inner surface of the guide piece 156, the right hinge shaft 142 is engaged with the shaft hole 154 as shown in fig. 15 and 17. Thus, as shown in fig. 3, the pair of left and right hinge shafts 140 and 142 can be engaged with the pair of left and right bearings 132 and 134. Further, as shown in fig. 15, since the front end of the right hinge shaft 142 is located at the inner dimension B than the lower end of the guide piece 156, even if the bending piece 148 is not bent manually, the guide piece 156 can be moved to bend naturally, and the right hinge shaft 142 is engaged with the shaft hole 154, and the insertion property is good.

Fifth, as shown in fig. 23, the operator rotates cover 90 upward to the maximum extent about left hinge axis 140 and right hinge axis 142. In this case, the contact 130 is placed on the restricting piece 100.

Sixth, when the operator pulls out the upper container 72 forward, even if the contact 130 is positioned on the restricting piece 100, the contact 130 falls on the guide portion 94 from the rear end portion of the restricting piece 100, and the contact 130 moves to the position in the normal state as shown in fig. 22.

Seventh, when the operator moves the upper container 72 backward again, the cover 90 is closed in a normal state.

(6) Effect

According to the present embodiment, when the left hinge shaft 140 is engaged with the left bearing 132, the right hinge shaft 142 can be easily engaged with the shaft hole 154 of the right bearing 134 only by moving the right hinge shaft 142 along the guide piece 156.

In addition, in the case where the right hinge shaft 142 moves along the guide groove 158 of the guide piece 156, since the bending piece 148 is bent at the constricted portion 152, the right hinge shaft 142 can be easily moved along the guide piece 156.

Further, when the protrusion 150 of the right hinge shaft 142 is moved while being brought into contact with the guide groove 158, the bent piece 148 can be reliably bent and moved.

In addition, since the shaft hole 154 is located on the extension line a of the groove wall 160 of the guide groove 158, it is possible to reliably guide the right hinge shaft 142 to the shaft hole 154 only by moving the right hinge shaft along the guide groove 158.

Further, since the guide groove 158 is narrower as it approaches the shaft hole 154, the right hinge shaft 142 can be more reliably guided to the shaft hole 154.

(7) Modification example

In the above embodiment, as shown in fig. 11, the guide groove 158 provided on the inner surface of the guide piece 156 is narrower as it approaches the shaft hole 154, but instead, as shown in fig. 18 (a), the width of the guide groove 158 may be made constant. However, in this case, the axial hole 154 is also located on the extension line C of the groove wall 160. As shown in fig. 18 (b), the shaft hole 154 may be located on an extension D of the center of the guide groove 158 provided on the inner surface of the guide piece 156.

In the above embodiment, the guide piece 156 is provided on the right bearing 134 on the right side, but instead of providing the guide piece 156 on the left bearing 132, the bent piece 148 may be formed on the left hinge shaft 140. Further, the guide pieces 156 and the bent pieces 148 may be formed on both the left and right sides.

In the above embodiment, the cover 90 of the fresh air compartment 42 has been described, but the configurations of the right hinge shaft 142 and the right bearing 134 according to the present embodiment may be applied to a hinge-type cover provided in a storage compartment other than the storage compartment.

While one embodiment of the present invention has been described above, the embodiment is presented by way of example only and is not intended to limit the scope of the invention. These new embodiments can be implemented in other various ways, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.