JP4644699B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator in which a storage case can be taken in and out together with a door that opens and closes a storage chamber.

  A conventional refrigerator is disclosed in Patent Document 1. This refrigerator has a door for opening and closing the front surface of the storage room, and a storage case for storing stored items is provided integrally with the door. A moving rail that moves integrally with the door is provided on the door so as to extend rearward from the left and right ends, and the storage case is supported by the moving rail. Further, the moving rail is formed to have substantially the same length as the depth of the storage case.

  Fixed rails are provided on both side walls of the storage chamber. The fixed rail is formed in a U-shaped cross section having an upper surface opened, and the lower portion of the intermediate running rail is inserted. Between the fixed rail and the intermediate running rail, a plurality of freely rotatable balls are provided on both sides and the lower part to constitute a rolling bearing. Thus, the intermediate traveling rail is supported slidably forward and backward with respect to the fixed rail.

  The moving rail is formed in a U-shaped cross-section with the lower surface opened, and the upper part of the intermediate traveling rail is inserted. A plurality of freely rotatable balls are provided on both sides and the upper part between the moving rail and the intermediate running rail to constitute a rolling bearing. Accordingly, the intermediate traveling rail is supported slidably forward and backward with respect to the moving rail.

  When the door is pulled, the moving rail together with the storage case can move forward with respect to the intermediate traveling rail until it is locked by a stopper provided at the front of the intermediate traveling rail. The intermediate traveling rail can move forward with respect to the fixed rail until it is locked by a stopper provided at the front portion of the fixed rail. For this reason, the door can move a longer distance than the depth of the storage case. Therefore, the amount of drawer of the door is large, and the upper surface opening of the storage case drawn out from the storage chamber can be visually recognized in a wide range.

Japanese Patent Laying-Open No. 2006-177654 (page 3 to page 22, FIG. 1)

  However, according to the above conventional refrigerator, since the moving mechanism of the door is constituted by the ball rolling bearing, if the small-diameter ball wears due to sliding, smooth movement cannot be achieved. For this reason, it is necessary to configure a rolling bearing using metal balls that do not generate rust over the entire moving direction in the front and rear direction, and there is a problem that the refrigerator including the door moving mechanism becomes expensive.

  Further, both side surfaces of the intermediate traveling rail are covered with the fixed rail and the moving rail via the balls. For this reason, there is a problem that the moving mechanism becomes larger in the left-right direction and the storage capacity of the storage chamber becomes smaller.

  An object of the present invention is to provide a refrigerator that has a large amount of drawer of a door, is inexpensive, and can have a large storage capacity.

  To achieve the above object, the present invention provides a refrigerator in which a storage case that is held by a door that opens and closes a storage chamber is pulled out together with the door, and extends rearward from the left and right ends of the door to support the storage case. And a guide groove formed in the rear part of the frame and extending in the front-rear direction facing the side wall of the storage chamber, a slider sliding back and forth in the guide groove, and a horizontal part in the rear part of the slider It is characterized by comprising a moving roller supported by a shaft, and a fixed rail that projects forward and backward on the side wall of the storage chamber and guides the moving roller.

  According to this configuration, the storage case is supported by the frame extending rearward from the left and right of the door, and moves together with the door. A slider is slidably provided in a guide groove provided at the rear of the frame. A moving roller pivotally supported on the rear part of the slider rolls on the fixed rail, and the storage case is pulled out. When the moving roller is locked at a predetermined position, the frame having the guide groove slides with respect to the slider, and the storage case is further pulled out.

  According to the present invention, in the refrigerator having the above-described configuration, a connecting member that connects the left and right sliders is provided. According to this configuration, the left and right positions of the slider protruding rearward from the frame are held by the connecting member, and deformation of the slider in the direction away from the side wall of the storage chamber is prevented.

  In the refrigerator having the above-described configuration, the lower end of the moving roller is disposed below the slider.

  Further, the present invention is characterized in that the refrigerator configured as described above is provided with a stopper that is locked by the moving roller moving forward and elastically deformed by the moving roller moving backward.

  According to this configuration, when the door detached from the storage chamber is inserted into the storage chamber from the front, the moving roller presses the stopper protruding from the fixed rail, the side wall of the storage chamber, or the like. Thereby, the stopper is elastically deformed, the moving roller is arranged behind the stopper, and the door is mounted. When the door is pulled out, the moving roller comes into contact with the stopper and is locked.

  Further, the present invention, in the refrigerator having the above-described configuration, includes a fixed roller that is pivotally supported by a horizontal shaft at a front end of the side wall of the storage chamber, and a moving rail that is provided on the frame and guided by the fixed roller, The fixed rail has a parallel upper rail and a lower rail for fitting the moving roller.

  According to this configuration, the moving roller rolls on the lower rail, and the fixed roller in contact with the moving rail provided on the frame rotates to pull out the storage case. When the moving roller is locked at a predetermined position, the frame moves relative to the slider and the fixed roller rotates to further pull out the storage case. Further, the door whose front part is lowered and rotated by the weight of the stored item in the storage case pulled out is locked with the moving roller coming into contact with the upper rail.

  According to the present invention, in the refrigerator configured as described above, an intermediate roller that rolls in contact with the guide groove is provided on the slider.

  According to the present invention, the slider that slides in the guide groove formed in the frame is provided, and the moving roller that is guided by the fixed rail is provided at the rear portion of the slider, so that the rolling bearing is configured over the entire front and rear moving direction. There is no need and the door can be pulled out with a simple structure. In addition, since the moving roller supported by the horizontal shaft can have a large diameter, there is little sliding wear, and the cost of the refrigerator can be reduced by forming the moving roller and the fixed rail at low cost with resin or the like. Furthermore, since the guide groove opens toward the side wall of the storage chamber and the fixed rail protrudes from the side wall of the storage chamber, the door moving mechanism can be made small in the left-right direction. Therefore, the storage capacity of the storage chamber can be increased.

  Further, according to the present invention, since the connecting member for connecting the left and right sliders is provided, the left and right intervals of the slider protruding rearward from the frame are maintained by the connecting member. Thereby, since the slider does not deform in the direction away from the side wall of the storage chamber, the moving roller can be prevented from falling off and the door can be pulled out smoothly.

  Further, according to the present invention, since the lower end of the moving roller is arranged below the slider, the slider can be arranged in the moving surface of the moving roller without interfering with the fixed rail. Therefore, the width in the left-right direction of the door moving mechanism can be further reduced.

  Further, according to the present invention, since the stopper that is elastically deformed by the moving roller that moves backward while locking the moving roller that moves forward is provided, the door can be easily mounted.

  Further, according to the present invention, the fixed rail is provided at the front end of the side wall of the storage chamber, the moving rail guided by the fixed roller is provided in the frame, and the fixed rail has the upper rail and the lower rail. The door can be supported by the moving roller to prevent the door from rotating.

  According to the present invention, since the intermediate roller that rolls in contact with the guide groove is provided on the slider, the door can be pulled out more smoothly.

  Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are a front view and a side sectional view showing a refrigerator according to an embodiment. The refrigerator 1 is provided with a refrigerating room 2 for storing stored items in a refrigerator. The front surface of the refrigerator compartment 2 is opened and closed by a rotating door 7.

  Below the refrigerating room 2, a temperature switching room 3 and an ice making room 4 are arranged side by side. The temperature switching chamber 3 can switch the room temperature according to the stored item. The front surface of the temperature switching chamber 3 is opened and closed by a rotating door 8. The ice making chamber 4 is made by the ice making unit 4a and stored in the ice storage case 4b. The front surface of the ice making chamber 4 is opened and closed by a door 9 that slides integrally with the ice storage case 4b.

  Below the temperature switching chamber 3 and the ice making chamber 4, a freezing chamber 5 for freezing and storing stored items is provided. Below the freezer compartment 5 is provided a vegetable compartment 6 for storing vegetables at a higher room temperature than the refrigerator compartment 2. In the freezer compartment 5 and the vegetable compartment 6, storage cases 12 and 13 for storing stored items are provided. The front surfaces of the freezer compartment 5 and the vegetable compartment 6 are opened and closed by doors 10 and 11 that slide together with the storage cases 12 and 13, respectively.

  3 and 4 are a front view and a side sectional view showing details of the freezer compartment 5 and the vegetable compartment 6, respectively. A moving mechanism 20 that slides the door 10 is provided on both side walls 5 a of the freezer compartment 5. Similarly, a moving mechanism 21 that slides the door 11 is provided on both side walls 6 a of the vegetable compartment 6.

  FIG. 5 is a side view of the moving mechanism 20, and FIG. 6 is a cross-sectional view taken along the line AA in FIG. The moving mechanism 21 is configured in the same manner. The moving mechanism 20 has a fixed rail 22 attached to the side wall 5 a of the freezer compartment 5 and a frame 23 attached to the door 10. The storage case 12 is locked to the upper surface of the frame 23 and integrated with the door 10. The frame 23 is formed to have a length substantially equal to the depth of the storage case 12.

  The fixed rail 22 is formed in a U-shaped cross-section with an opening on the storage case 12 side, and has a parallel upper rail 22a and a lower rail 22b that protrude from the side wall 5a and extend in the front-rear direction. A moving roller 27 described later is fitted between the upper rail 22a and the lower rail 22b. Further, the fixed rail 22 is provided with a stopper 31 made of a cut and raised portion whose front side is connected to a surface parallel to the side wall 5a. A stopper 31 by cutting and raising may be provided on the upper rail 22a or the lower rail 22b.

  A guide groove 24 having a U-shaped cross section with an opening on the side wall 5a is formed in the lower rear portion of the frame 23. A slider 26 extending in the front-rear direction is disposed in the guide groove 24 via a ball 24a, and the slider 26 is slidable back and forth in the guide groove 24 by rolling the ball 24a. A moving roller 27 having a horizontal axis is supported at the rear portion of the slider 26. The moving roller 27 is fitted between the upper rail 22a and the lower rail 22b of the fixed rail 22 and rolls on the lower rail 22b.

  On the upper part of the frame 23, there is formed a moving rail 25 that extends forward and backward and protrudes toward the side wall 5a. A stopper 32 disposed below the moving rail 25 is provided behind the moving rail 25. A fixed roller 28 having a horizontal axis is attached to the front end of the side wall 5a. The fixed roller 28 is in contact with the lower surface of the moving rail 25, and the moving rail 25 in contact with the fixed roller 28 is guided back and forth by the rotation of the fixed roller 28.

  FIG. 7 shows a top view of the slider 26. The left and right sliders 26 are connected by a connecting member 30 at the rear end. As a result, the distance between the left and right sliders 26 is kept constant.

  In the moving mechanism 20 configured as described above, the door 10 detached from the refrigerator compartment 5 has a stopper 32 straddling the fixed roller 28 from the front, and the moving roller 27 is located between the upper rail 22a and the lower rail 22b of the fixed rail 22. Inserted. When the door 10 is pushed in, the moving rail 25 slides along the fixed roller 28, and the moving roller 27 slides along the fixed rail 22. The stopper 31 formed by cutting and raising is elastically deformed at the rear side in the direction of the side wall 5 a by the contact of the moving roller 27, and the moving roller 27 is arranged behind the stopper 31. When the door 10 is further pushed in, the refrigerator compartment 5 is closed.

  When the closed door 10 is pulled, the moving roller 27 rolls on the lower rail 22b of the fixed rail 22 and the fixed roller 28 in contact with the moving rail 25 rotates. Thereby, the storage case 12 is pulled out smoothly. When the moving roller 27 comes into contact with the stopper 31 and is locked, as shown in FIGS. 8 and 9, the slider 26 and the guide groove 24 slide and the frame 23 slides forward with respect to the slider 26. As a result, the storage case 12 is further pulled out, the stopper 32 abuts against the fixed roller 28, and the movement is stopped. Therefore, the storage case 12 can be pulled out greatly to visually recognize the upper surface opening.

  When the door 10 is pulled out, the front portion of the frame 23 receives a load downward and the moving roller 27 receives a load upward due to the weight of the stored item in the storage case 12. At this time, the slider 26 to which the moving roller 27 is attached is held in the guide groove 24 via the ball 24a, and the rotation is restricted. Further, the moving roller 27 contacts the upper rail 22 a of the fixed rail 22 with the fixed roller 28 as a fulcrum. Thereby, the door 10 can be supported by the fixed roller 28 and the moving roller 27 that are separated in the front-rear direction, and the door 10 can be prevented from rotating.

  According to this embodiment, the slider 26 that slides in the guide groove 24 formed in the frame 23 is provided, and the moving roller 27 that is guided by the fixed rail 22 is provided at the rear part of the slider 26. Therefore, it is not necessary to configure a rolling bearing, and the amount of drawer of the door 10 can be increased with a simple configuration.

  Further, since the moving roller 27 supported by the horizontal shaft can be increased in diameter, there is little sliding wear, and the cost of the refrigerator 1 can be reduced by forming the moving roller 27 and the fixed rail 22 at low cost with resin or the like. .

  Furthermore, since the guide groove 24 opens facing the side wall 5a of the refrigerator compartment 5 and the upper rail 22a and the lower rail 22b of the fixed rail 22 project from the side wall 5b of the freezer compartment 5, the moving mechanism 20 of the door 10 is provided. Can be made small in the left-right direction. Therefore, the storage capacity of the freezer compartment 5 can be increased. Since the moving mechanism 21 of the door 11 is also configured in a similar manner, the amount of drawer of the door 11 can be increased and the storage capacity of the vegetable compartment 6 can be increased.

  In addition, since the connecting member 30 that connects the left and right sliders 26 is provided, the left and right spacing of the slider 26 that protrudes rearward from the frame 23 is maintained by the connecting member 30. Thereby, since the slider 26 does not deform | transform in the direction away from the side walls 5a and 6a of the refrigerator compartment 5 or the vegetable compartment 6, the falling of the moving roller 27 can be prevented and the doors 10 and 11 can be pulled out smoothly.

  Further, the moving roller 27 is formed with a diameter larger than the height of the slider 26. Thereby, the lower end of the moving roller 27 is arranged below the slider 26, and the slider 26 can be arranged in the moving surface of the moving roller 27 without interfering with the fixed rail 22. Therefore, the width in the left-right direction of the moving mechanisms 20 and 21 of the doors 10 and 11 can be further reduced.

  In the present embodiment, the slider 26 may be slidably formed by omitting the ball 24 a and fitting the slider 26 into the guide groove 24. Thereby, the moving mechanisms 20 and 21 can be formed more easily. As shown in FIG. 10, an intermediate roller 33 that rolls in contact with one or both of the upper and lower wall surfaces of the guide groove 24 may be provided on the slider 26. Thereby, the moving mechanisms 20 and 21 can be formed more easily and the doors 10 and 11 can be pulled out smoothly.

  According to this invention, it can utilize for the refrigerator which can take in and out a storage case with the door which opens and closes a storage chamber.

The front view which shows the refrigerator of embodiment of this invention Side surface sectional drawing which shows the refrigerator of embodiment of this invention The front view which shows the detail of the freezer compartment and vegetable compartment of embodiment of this invention Side surface sectional drawing which shows the detail of the freezer compartment and vegetable compartment of embodiment of this invention The side view which shows the moving mechanism of the door of the refrigerator of embodiment of this invention AA sectional view of FIG. The top view which shows the slider of the moving mechanism of the door of the refrigerator of embodiment of this invention The side view which shows the state which pulled out the door of the moving mechanism of the door of the refrigerator of embodiment of this invention The top view which shows the state which pulled out the door of the moving mechanism of the door of the refrigerator of embodiment of this invention. The side view which shows the other aspect of the slider of the moving mechanism of the door of the refrigerator of embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Refrigeration room 3 Temperature switching room 4 Ice making room 5 Freezing room 6 Vegetable room 7-11 Door 12, 13 Storage case 20, 21 Moving mechanism 22 Fixed rail 22a Upper rail 22b Lower rail 23 Frame 24 Guide groove 25 Moving rail 26 Slider 27 Moving roller 28 Fixed roller 31, 32 Stopper 33 Intermediate roller

Claims (6)

  In a refrigerator in which a storage case held by a door that opens and closes a storage chamber is pulled out together with the door, a frame that extends rearward from the left and right ends of the door to support the storage case, and a rear portion of the frame are formed. And a guide groove extending forward and backward facing the side wall of the storage chamber, a slider that slides forward and backward in the guide groove, a moving roller that is supported by a horizontal axis at the rear of the slider, A refrigerator comprising: a fixed rail that extends forward and backward on a side wall of the storage chamber and guides the moving roller.   The refrigerator according to claim 1, further comprising a connecting member that connects the left and right sliders.   The refrigerator according to claim 1 or 2, wherein a lower end of the moving roller is disposed below the slider.   The refrigerator according to any one of claims 1 to 3, further comprising a stopper that locks the moving roller that moves forward and that is elastically deformed by the moving roller that moves backward.   A fixed roller supported by a horizontal shaft at a front end of a side wall of the storage chamber; and a moving rail provided on the frame and guided by the fixed roller, the fixed rail being parallel to the moving roller. The refrigerator according to claim 1, further comprising an upper rail and a lower rail.   The refrigerator according to any one of claims 1 to 5, wherein an intermediate roller that rolls in contact with the guide groove is provided on the slider.

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