JP5957169B2 - refrigerator - Google Patents

Description

The present invention relates to a refrigerator.

  Some refrigerators have a configuration in which, for example, a vegetable room in a storage room is provided with drawer means provided with a storage container so as to be slidable in the front-rear direction. For example, Patent Document 1 discloses the slide structure of the drawing means. In this thing, the main body of a refrigerator is comprised by filling a foam heat insulating material between an outer box and an inner box. Rail members (sliding means) extending in the front-rear direction are provided on the inner surface side (storage chamber side) of the left and right side surfaces of the inner box. On the side of the drawer unit (drawer means) having the storage container, a container support that supports the storage container, a first pulley that is provided on the left and right sides of the rear part of the container support and moves along the rail member, and a container support It is set as the structure provided with the door provided in the front-end part. Moreover, it is set as the structure which provided rotatably the 2nd pulley which supports a container support from the downward direction on both the right and left sides of the bottom part of a storage chamber.

JP 11-201625 A JP-A-8-82475

  By the way, in recent years, as a heat insulating material provided between the outer box and the inner box constituting the main body of the refrigerator, a vacuum heat insulating material excellent in heat insulating performance is used instead of a foam heat insulating material made of urethane foam to be foamed in situ. (For example, refer to Patent Document 2).

  Here, in the above-mentioned Patent Document 1, as a structure for attaching the rail member to the inner box, a concave portion in which the inner surface side (storage chamber side) is recessed is formed in the inner box, and the rail member is provided in the concave portion. It is set as the structure attached in the state fitted from the storage chamber side. In the case of such a structure, the concave portion of the inner box has a structure protruding to the opposite storage chamber side (insulation material side) that is opposite to the storage chamber, but the heat insulating material is a foam heat insulating material There was no particular problem.

  However, when a panel-like vacuum heat insulating material is used as the heat insulating material, it is difficult to form a concave portion that is partially recessed in the vacuum heat insulating material, and thus the above-described structure cannot be adopted. Also, when fixing the rail member to the inner box, if the screw member is screwed in from the storage chamber side and attached, the tip of the screw member penetrates the inner box and protrudes toward the heat insulating material side. When a vacuum heat insulating material is used as the heat insulating material, the vacuum heat insulating material may be damaged at the tip of the screw member. When the vacuum heat insulating material is damaged, the vacuum state is broken, and the heat insulating performance is significantly deteriorated.

The present invention has been made in view of the above circumstances, and its purpose is to provide a vacuum heat insulating material as a heat insulating material between the inner box and the outer box while adopting a structure in which a rail member is attached to the inner surface side of the inner box. It is in providing the refrigerator which can be used.

In order to achieve the above object, the refrigerator of the present invention is configured by combining an outer box and an inner box to form a storage chamber therein, and is attached to an inner surface of the inner box facing the storage chamber. A rail member, and the rail member has a vertical wall portion that is in contact with the inner surface of the inner box and extends in parallel along the inner box, and the inner box has the storage chamber and Is provided with a mounting portion that has a recess on the opposite anti-storage chamber side and protrudes toward the storage chamber side, and the rail member has a recess that fits into the mounting portion from the storage chamber side, and the mounting The fixing member for fixing the rail member to the inner surface of the inner box is provided in the part, and the fixing member has its tip end directed toward the storage chamber, and the end of the fixing member on the side opposite to the storage chamber The head is housed in the recess of the mounting portion, and the outer box and the A vacuum heat insulating material is disposed between the box and the opening of the concave portion of the mounting portion, and the head portion of the fixing member has an end surface on the side opposite to the storage chamber and accommodates the head portion. the recess of the mounting portion is shaped to accommodate the entire of the head, the end face of the counter storage compartment side of the head which is received in the recess of the mounting portion, the recess of the mounting portion of the inner box It is in a state of being flush with the flat surface constituting the periphery, and there is no gap between the end surface on the side opposite to the storage chamber of the head of the fixing member and the surface on the storage chamber side of the vacuum heat insulating material. Features.

According to the above-described present invention, the rail member is attached and fixed to the inner surface side of the inner box by the fixing member. At this time, the fixing member is provided in the mounting portion provided in the inner box, and the end of the fixing member on the side opposite to the storage chamber is accommodated in the recess on the side of the mounting portion opposite to the storage chamber. In this case, a portion protruding toward the anti-storage chamber can be eliminated in the vicinity of the attachment portion. For this reason, a vacuum heat insulating material can be arrange | positioned so that the opening part of the said recessed part may be plugged between an inner box and an outer box. Therefore, a vacuum heat insulating material can be used for the heat insulating material between the inner box and the outer box while adopting a structure in which the rail member is attached to the inner surface side of the inner box.

Longitudinal front view of main parts Disassembled perspective view of drawer unit in vegetable room Front view of the main part shown with the door removed Longitudinal front view showing the second pulley section broken away The perspective view of a rail member and a 2nd pulley part

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. First, in FIG. 2, the cabinet of the refrigerator main body 1 combines a steel plate outer box 2 and a synthetic resin inner box 3, and a vacuum heat insulating material as a heat insulating material between the outer box 2 and the inner box 3. 4 (see FIG. 1) is arranged, and a plurality of storage chambers are formed therein. In FIG. 2, as a storage room, a vegetable room 5, a freezing room 7 formed below the vegetable room 5 via a partition wall 6, and a vegetable room 5 above the partition room 8 are formed. An ice making chamber 9 and a switching chamber 10 capable of switching the set temperature are shown. The ice making chamber 9 and the switching chamber 10 are divided into left and right by a partition wall (not shown).

  The vacuum heat insulating material 4 is made of, for example, a filler made of fine powder having heat insulating properties such as pearlite or silica, and sealed inside an air permeable inner bag. In this state, the mouth portion of the exterior body is sealed by means such as thermocompression bonding, and is hermetically configured. The vacuum heat insulating material 4 is formed in a flat rectangular parallelepiped shape.

  The vegetable compartment 5 is provided with a drawer unit 11 as a drawer means so as to be slidable in the front-rear direction. Hereinafter, the slide structure of the drawer unit 11 will be described with reference to FIGS. 1 and 3 to 5. Below the left and right side surfaces in the vegetable chamber 5 (the inner surfaces of both the left and right sides facing the vegetable chamber 5 in the inner box 3) are rail members 12 (sliding means on the left side in FIGS. 1 and 3 to 5). Only the rail member 12 is shown). The rail member 12 extends long in the front-rear direction as shown in FIG. 5, and as shown in FIG. 1, a vertical wall portion 13 addressed to the inner surface of the inner box 3 and a vegetable on the upper portion of the vertical wall portion 13. A bowl-shaped rail portion 14 provided so as to protrude inward of the chamber 5 and a lower portion of the vertical wall portion 13 so as to protrude inward of the vegetable chamber 5 so as to face the rail portion 14. The lower projecting portion 15 provided and the boss portions 16 provided at a plurality of locations (three locations in this case) in the front-rear direction of the vertical wall portion 13 are integrally provided. The rail portion 14 and the lower overhang portion 15 are connected at the rear portion.

  Each boss portion 16 has a stepped bottomed cylindrical shape protruding inward of the vegetable compartment 5 and closed at the tip, and is stepped on the opposite side (vacuum insulation 4 side) from the vegetable compartment 5 side. A concave portion 19 having a shape is formed. As shown in FIG. 5, the boss portions 16 adjacent to each other in the front-rear direction are connected by a rib 20 extending in the front-rear direction. As shown in FIG. 1, the tip 20 a on the inner side of the vegetable compartment 5 in the rib 20 is on the inner side of the vegetable compartment 5 than the side surface 14 a of the rail portion 14 and the side surface 15 a of the lower overhang portion 15. It protrudes slightly.

  In the inner box 3 to which the rail member 12 is attached, an attachment portion 22 is integrally provided at a position corresponding to the boss portion 16. As shown in FIG. 1, the attachment portion 22 has a recess 23 on the side opposite to the vegetable compartment 5 (on the vacuum heat insulating material 4 side) and protrudes toward the vegetable compartment 5. A screw insertion hole 24 is formed at the bottom of the recess 23.

  Here, the rail member 12 is attached to the inner box 3 in a state before the vacuum heat insulating material 4 and the outer box 2 are assembled to the inner box 3. Specifically, first, the recess 19 of each boss portion 16 of the rail member 12 is fitted to the attachment portion 22 of the inner box 3 from the vegetable compartment 5 side, and the rail member 12 is attached to the inner surface ( Address to the vegetable room 5 side). Next, in this case, which is a fixing member, the shaft portion of the screw member 25 made of a countersunk screw is inserted into the screw insertion hole 24 from the side opposite to the vegetable compartment 5 (vacuum heat insulating material 4 side), and the outer peripheral portion of the shaft portion The male screw portion formed in the above is screwed into the cylindrical portion of the boss portion 16. At this time, the head portion 25 a at the end of the screw member 25 on the side opposite to the vegetable compartment 5 is accommodated in the concave portion 23 of the attachment portion 22. In a state in which the head portion 25a is accommodated in the recess 23, the end surface of the head portion 25a on the side of the anti-vegetable chamber 5 is substantially flush with the peripheral surface of the inner box 3 on the side of the anti-vegetable chamber 5. Thus, the rail member 12 is attached and fixed to the inner surface of the inner box 3 (the surface on the vegetable compartment 5 side) by screwing the screw member 25 inserted into the screw insertion hole 24 of each attachment portion 22 into the boss portion 16. .

  The vacuum heat insulating material 4 is bonded and fixed to the surface of the inner box 3 on the side opposite to the vegetable compartment 5 with an adhesive 26a, and is also fixed to the inner surface of the outer box 2 with an adhesive 26b. At this time, the vacuum heat insulating material 4 arrange | positioned between the inner box 3 and the outer box 2 will be in the state which block | closes the opening part of each recessed part 23 of the inner box 3 from the anti-vegetables room 5 side.

  A second pulley 28 is arranged at the front portions on the left and right sides of the upper surface of the partition wall 6 constituting the bottom of the vegetable compartment 5. As shown in FIG. 4, a pulley mounting portion 29 provided on the partition wall 6 is provided at a portion where the second pulley 28 is attached, and a metal reinforcing plate 30 provided on the pulley mounting portion 29 is attached to the portion. The shaft portion 28a of the second pulley 28 is fixed. The second pulley 28 is rotatable with respect to the shaft portion 28a. The reinforcing plate 30 has a U-shaped cross section when viewed from the front.

  The drawer unit 11 includes a storage container 32, a pair of left and right container supports 33 (only the left container support 33 is shown in FIGS. 1 to 4) and the pair of container supports 33. Door 34 (see FIG. 2) connected to the front end of the left and right pulleys 35 attached to the outer surface of the rear part of the pair of left and right container supports 33 (also left pulleys in FIGS. 1, 3 and 4). Only 35). The rear end portions of the left and right container supports 33 are connected by a connecting member (not shown).

  As shown in FIG. 1, each container support 33 integrally has a vertical piece portion 33 a and a horizontal piece portion 33 b, and has a L-shaped cross section viewed from the front, and the horizontal piece portion 33 b is the second piece. Are supported by the pulley 28. The pulley 35 has a shaft portion 35a attached to the upper portion of the rear portion of the vertical piece portion 33a, and the upper surface of the pulley 35 moves along the lower surface of the rail portion 14 of the rail member 12. . In this case, the pulley 35 is disposed above the boss portion 16, and the pulley 35 and the boss portion 16 are disposed such that their axial directions wrap in the vertical direction.

  The storage container 32 is supported at the bottom by the horizontal piece 33 b of the container support 33 and is detachable from the container support 33. The storage container 32 has a shape that becomes wider toward the upper side, and is inclined so that the side surface 32a spreads outward toward the upper side. An extension part 36 (see FIGS. 2 and 3) extending upward is integrally provided at the front end of the container support 33, and the door 34 is placed on the front surface of the extension part 36 at a plurality of upper and lower positions. It is fixed by screwing. A handle portion 37 is provided at the upper front of the door 34. The door 34 opens and closes the front opening of the vegetable compartment 5.

  In the above configuration, when the user puts a finger on the handle 37 of the door 34 in the drawer unit 11 and pulls it forward, the container support 33 moves forward while the second pulley 28 rotates, and the container A pulley 35 provided at the rear portion of the support 33 moves forward while rotating along the rail portion 14 in the rail member 12, and accordingly, the drawer unit 11 including the storage container 32 is pulled forward. Further, when the front surface of the door 34 is pushed rearward, the drawer unit 11 is pushed rearward along the rail portion 14 with the rotation of the second pulley 28 and the pulley 35. Thus, the drawer unit 11 is provided so that the rail member 12, the pulley 35, and the second pulley 28 cooperate to slide in the front-rear direction with respect to the vegetable compartment 5 serving as a storage compartment.

According to the above-described embodiment, the following operational effects can be obtained.
About attaching the rail member 12 to the inner box 3, it was set as the following structures. That is, the inner box 3 is provided with a mounting portion 22 that has a recess 23 on the side opposite to the vegetable chamber 5 that is the storage chamber and protrudes toward the vegetable chamber 5 side. Is provided with a screw member 25 as a fixing member for fixing the rail member 12 to the inner surface of the inner box 3, and the head 25 a at the end of the screw member 25 on the side opposite to the vegetable compartment 5 is accommodated in the recess 23. did. According to this configuration, in the inner box 3, it is possible to eliminate the portion protruding toward the anti-vegetable compartment 5 near the attachment portion 22, so that the recess 23 is between the inner box 3 and the outer box 2. A flat rectangular parallelepiped vacuum heat insulating material 4 can be disposed so as to close the opening. Therefore, the vacuum heat insulating material 4 can be used as the heat insulating material between the inner box 3 and the outer box 2 while adopting a structure in which the rail member 12 constituting the sliding means is attached to the inner surface side of the inner box 3.

  As the vacuum heat insulating material 4, a flat rectangular parallelepiped can be used. Although it is difficult for the vacuum heat insulating material 4 to provide a partial recessed part and convex part on the structure, by using the said structure, use the flat rectangular parallelepiped vacuum heat insulating material 4 which is easy to manufacture. Can do.

  Since the screw member 25 is used as a fixing member for fixing the rail member 12 to the inner box 3, and the head portion 25a of the screw member 25 is accommodated in the concave portion 23 of the mounting portion 22, the end surface of the head portion 25a is formed on the inner surface. It is possible to make the surface as close as possible to the surrounding surface of the box 3, and it is difficult to generate a gap between the end surface of the head 25 a and the vacuum heat insulating material 4. In addition, as a fixing member, if the rail member 12 can be fixed to the inner box 3, a pin may be used and a bolt and a nut may be used.

  The drawer unit 11 includes a pair of container supports 33 that support the storage container 32 and a pulley 35 that moves along the rail portion 14 of the rail member 12, so that the drawer unit 11 extends along the rail member 12. Can slide well.

  A boss portion 16 for screwing the screw member 25 is provided in a portion corresponding to the attachment portion 22 in the rail member 12, and the boss portion 16 and the pulley 35 attached to the container support 33 are arranged in the vertical direction. It was arranged to wrap with. According to this configuration, the space in the left-right direction can be used more effectively than in the case where the boss portion and the pulley are arranged so as to be aligned in the axial direction, thereby reducing the width dimension in the left-right direction of the storage container 32. The capacity can be increased and a large capacity of the storage container 32 can be secured.

  Since the rail member 12 has a plurality of boss portions 16 arranged in the front-rear direction, and the boss portions 16 are connected by the ribs 20, the rail member 12 can be reinforced by the ribs 20, and the rail member 12 Deformation can be prevented. Moreover, since the front-end | tip part 20a of the rib 20 is protruded inward of the vegetable compartment 5 rather than the side surface 14a of the rail part 14, and the side surface 15a of the lower overhang | projection part 15, the front-end | tip part 20a of the rib 20 The position support means of the left-right direction of the container support 33 is comprised.

  In this case, if the side surface 14a of the rail portion 14 and the side surface 15a of the lower overhanging portion 15 abut on the side surface of the vertical piece portion 33a of the container support 33 to constitute the position restricting means in the left-right direction of the container support 33. Since these contacts become surface contacts, there is a risk that the resistance when the drawer unit 11 slides will increase. On the other hand, when the tip portion 20a of the rib 20 constitutes the position restricting means in the left-right direction of the container support 33 as in the present embodiment, the side surface of the vertical piece portion 33a in the container support 33 is provided. Even if it contacts the tip portion 20a of the rib 20, the contact is a point contact, so that there is an advantage that the resistance when the drawer unit 11 slides can be reduced. In this case, by setting the clearance A between the side surface of the vertical piece portion 33a of the container support 33 and the side surface 15a of the lower overhang portion 15 to 3 mm ± 1 mm, the rattling of the drawer unit 11 in the lateral direction is minimized. Can be prevented.

  Since the rail member 12 is integrally provided with the rail portion 14 at the upper portion and the lower protruding portion 15 at the lower portion, the rail member 12 can be further reinforced and deformation of the rail member 12 can be further prevented.

  The storage container 32 has a shape that becomes wider toward the upper side, and the rail member 12 is disposed on the side and the lower side of the storage container 32. According to this configuration, since the storage container 32 has a shape that is widened upward, the storage container 32 has a relatively lower portion between the side surface of the storage container 32 and the inner surface of the inner box 3. A large space can be secured, and by arranging the rail member 12 in a place where this space is easily secured, the space can be effectively used without reducing the capacity of the storage container 33.

The container support 33 in the drawer unit 11 has an extending part 36 extending upward at the front end, and the door 34 is connected to the extending part 36. According to this configuration, even when the container support 33 is located at the lower portion and the handle portion 37 of the door 34 is located at the upper portion of the front surface, the door 34 is inclined in the front-rear direction when the drawer unit 11 is taken in and out. There is an advantage that can be prevented.
By the way, when the door 34 is connected without providing an extending portion extending upward at the front end of the container support 33, if the drawer unit 11 is repeatedly put in and out, the door 34 may easily tilt in the front-rear direction. According to this embodiment, occurrence of such a problem can be prevented.

  Since the second pulley 28 is provided below the rail member 12 and receives the drawer unit 11 from below, the drawer unit 11 can be favorably supported and the sliding operation in the front-rear direction can be further facilitated. Moreover, since the 2nd pulley 28 was set as the structure arrange | positioned in the bottom part in the vegetable compartment 5, and being fixed to the reinforcement board 30, the 2nd pulley 28 can be attached favorably.

The present invention is not limited to the above-described embodiment, and can be modified or expanded as follows.
The structure of the drawer unit 11 and the rail member 12 is not restricted to the vegetable compartment 5, For example, it can also apply to a freezer compartment.

In the drawings, 1 is a main body, 2 is an outer box, 3 is an inner box, 4 is a vacuum heat insulating material, 5 is a vegetable room (storage room), 11 is a drawer unit (drawer means), and 12 is a rail member (slide means, member). ), 13 is a vertical wall portion, 14 is a rail portion, 16 is a boss portion, 20 is a rib, 20a is a tip portion, 22 is a mounting portion, 23 is a recess, 25 is a screw member (fixing member), and 25a is a head portion ( 28 is a second pulley, 29 is a pulley mounting part, 30 is a reinforcing plate, 32 is a storage container, 33 is a container support, 34 is a door, 35 is a pulley, and 36 is an extension part. Indicates.

Claims (9)

A main body that is configured by combining an outer box and an inner box and forms a storage chamber inside,
A rail member attached to an inner surface facing the storage chamber in the inner box;
With
The rail member has a vertical wall portion that is addressed in contact with the inner surface of the inner box and extends in parallel along the inner box;
The inner box has a concave portion on the side opposite to the storage chamber and a mounting portion that protrudes toward the storage chamber.
The rail member is provided with a recess that fits into the mounting portion from the storage chamber side,
The mounting portion is provided with a fixing member for fixing the rail member to the inner surface of the inner box, and the fixing member has a distal end portion directed toward the storage chamber and the fixing member on the side opposite to the anti-storage chamber. The head of the end is configured to be accommodated in the recess of the mounting portion,
Between the outer box and the inner box, a vacuum heat insulating material is arranged so as to close the opening of the concave portion of the mounting portion,
The head of the fixing member has an end surface on the side opposite to the storage room;
The concave portion of the attachment portion that accommodates the head is shaped to accommodate the entire head, and the end surface of the head that is accommodated in the concave portion of the attachment portion is on the side opposite to the storage chamber of the inner box. It is in a state of being flush with the flat surface that forms the periphery of the concave portion of the mounting portion, and there is a gap between the end surface of the head on the side opposite to the storage chamber and the surface of the vacuum heat insulating material on the storage chamber side. A refrigerator characterized by having no structure .   The refrigerator according to claim 1, wherein the vacuum heat insulating material is a flat rectangular parallelepiped.   The refrigerator according to claim 1 or 2, wherein the fixing member is a screw member or a pin, and a head portion of the fixing member is accommodated in the recess. A drawer having a storage container and provided in a slidable manner in the front-rear direction with respect to the storage chamber in cooperation with the rail member;
The refrigerator according to any one of claims 1 to 3, wherein the drawer means includes a container support that supports the storage container, and a pulley that moves along the rail member. The fixing member is a screw member;
In the portion corresponding to the mounting portion in the rail member, a boss portion for screwing the screw member is provided,
The refrigerator according to claim 4, wherein the boss portion and the pulley are arranged so as to wrap in the vertical direction.   A plurality of the boss portions are arranged in the front-rear direction on the rail member, the boss portions are connected by ribs, and the tip end portions of the ribs constitute a position restricting means in the left-right direction of the container support. 6. The refrigerator according to claim 5, wherein The storage container has a shape that widens upward,
The refrigerator according to any one of claims 4 to 6, wherein the rail member is disposed on a side and a lower portion of the storage container.   The container support in the drawer means has an extending portion extending upward at a front end, and a door for opening and closing the opening of the storage chamber is connected to the extending portion. The refrigerator according to claim 4. A second pulley is provided below the rail member and receives the pull-out means from below, and the second pulley is disposed at the bottom of the storage chamber and fixed to a reinforcing plate. The refrigerator according to any one of claims 4 to 8.

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