JP2018017456A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator that can be made lightweight while ensuring that a load is equally applied to left and right rollers.SOLUTION: A refrigerator 1 comprises: a refrigerator body 2 including an outer case 21; leg parts 8 arranged on the lower side of left and right front end parts of the refrigerator body 2; rollers 6 arranged on the lower side of left and right back end parts of the refrigerator body 2; reinforcing members 4 extended toward a front-back direction in left and right lower end parts of the refrigerator body 2; and a base plate 5 attached to the reinforcing members 4. The rollers 6 are pivotally supported by the left and right reinforcing members 4, and the base plate 5 is made of resin.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a refrigerator, and more particularly to a lower structure of the refrigerator.

  In recent years, household refrigerators have been increasing in size, and in order to cope with this, it is required to increase the rigidity of the outer box that forms the outer shell of the refrigerator. In order to meet this requirement, for example, a refrigerator disclosed in Patent Document 1 has been known as one that improves the rigidity of the outer box of the refrigerator.

  In the refrigerator disclosed in Patent Document 1, reinforcing members are provided at the lower ends of the left and right side plates of the outer box to reinforce the lower part of the outer box. The reinforcing member has an L-shape having a horizontal portion extending from the left and right front end portions of the outer box along the rear end portion, and a vertical portion formed upward from the front end of the horizontal portion. It consists of a frame member. A base plate is installed between the rear end portions of the left and right reinforcing members.

  FIG. 10 is a bottom view showing the bottom of a conventional refrigerator. FIG. 11 is an enlarged perspective view of a portion D in FIG. FIG. 12 is a schematic exploded perspective view showing an arrangement state of rollers and a compressor arranged at the bottom of a conventional refrigerator.

  As shown in FIG. 10, a bottom plate 300 is provided on the lower surface portion of the outer box 200 of the conventional refrigerator 100. Angle type reinforcing members 400 formed in an L shape are respectively provided at the left and right lower ends of the outer box 200. Below the rear end of the reinforcing member 400, a base plate 500 is provided for supporting the shaft rod 610 of the roller 600 and for mounting the compressor 700 (see FIG. 12). Leg portions 800 are respectively provided at the left and right front end portions of the reinforcing member 400. The refrigerator 100 in which items are stored in the storage chamber is supported by two left and right legs 800 on the front side and two left and right rollers 600 on the rear side.

  In the base plate 500, a roller installation hole 510 for disposing the roller 600, a shaft support piece 520 (see FIG. 12) formed so as to cut and raise the roller installation hole 510, and the compressor 700 are fixed. Pin mounting holes 530 into which the four stud pins 730 are respectively inserted are formed. The base plate 500 and the stud pin 730 are separate bodies, and are fixed by fitting the lower ends of the stud pins 730 into holes formed in the base plate 500.

  The roller installation hole 510 is disposed on the inner side of the reinforcing member 400 so as to be adjacent to the reinforcing member 400 and avoid the reinforcing member 400 when viewed from below. Further, in order to arrange the reinforcing member 400 so as to avoid the roller 600, a notch 410 (see FIG. 11) is formed in the vicinity of the outer side of the roller installation hole 510 in the left-right direction. For this reason, a center line L100-L100 that connects the fastener 810 for fixing the leg portion 800 to the front end portion of the reinforcing member and the roller 600 is inclined with respect to the front-rear direction (L100- toward the front). L100 is wide).

  As shown in FIG. 12, the compressor 700 includes four stud pins 730 inserted through rubber seats 740 into fixing holes 721 drilled at four locations of a bracket 720 attached to the lower end of the housing 710. The retaining rings 750 are fixed to the base plate 500 by engaging the retaining rings 750 with the locking grooves at the tip ends of the four stud pins 730.

Japanese Patent No. 4216225

  However, in the conventional refrigerator 100, as shown in FIG. 10, the roller 600 is provided on the base plate 500 so that the roller 600 is arranged on the inner side (center line L100-L100) from the leg portion 800.

  The base plate 500 has an asymmetric shape to support the compressor 700 and to attach other parts (not numbered). As a result, the roller 600 cannot receive the load of the refrigerator evenly, and there is a problem that twisting or falling occurs. This also has the balance of the strength of the base plate, but also relates to the fact that the roller 600 is inside the leg portion 800 as described above. The roller 600 that receives the load serves as a fulcrum, and the outer side of the roller 600 is twisted or falls due to weight.

  Moreover, in order to ensure the strength required to support the roller 600, the base plate 500 is made of metal, leading to an increase in the weight of the entire refrigerator.

  Then, this invention makes it a subject to provide the refrigerator reduced in weight, suppressing a twist and a fall.

  In order to solve the above problems, a refrigerator according to the present invention includes a refrigerator main body having an outer box, rollers disposed on the lower left and right rear portions of the refrigerator main body, and left and right lower portions of the refrigerator main body in the front-rear direction. A refrigerator comprising a reinforcing member extending toward the reinforcing member and a base plate attached to the reinforcing member, wherein the rollers are pivotally supported by the left and right reinforcing members, and the base plate is made of resin. Features.

  The refrigerator according to the present invention can be reduced in weight while suppressing twisting and falling.

It is a bottom view which shows an example of the refrigerator which concerns on embodiment of this invention. It is a principal part perspective view which has a partial cross section which shows the structure of the lower part of a refrigerator. It is an expansion perspective view of a reinforcement member. It is the B section enlarged view of FIG. It is CC sectional drawing of FIG. It is a rear view of a reinforcing member, (a) shows a state when the roller is inserted into the roller installation hole, (b) shows a state when the head of the pivot support pin is held by the pin drop-off prevention part. Show. It is a principal part enlarged view which shows the installation state of a roller, (a) shows a state when a baseplate is removed, (b) is the A section enlarged view of FIG. It is a principal part disassembled expansion perspective view which shows the compressor mounted in a base plate. It is a principal part expanded vertical sectional view which shows the attachment state of a compressor. It is a bottom view which shows the conventional refrigerator. It is the D section expansion perspective view of FIG. It is a principal part disassembled expansion perspective view which shows the compressor mounted in the conventional base plate.

  Hereinafter, an example of the refrigerator according to the embodiment of the present invention will be described with reference to FIGS.

  Below, it demonstrates on the basis of the direction when the refrigerator 1 is seen from the front. Further, in the drawings shown below, the same members are denoted by the same reference numerals as appropriate, and repeated descriptions are omitted as appropriate.

≪Refrigerator≫
As shown in FIG. 1, the refrigerator 1 includes, for example, a refrigerating room with a double door that is not shown, a freezing room with a drawer door, and a vegetable room with a drawer door. The refrigerator 1 includes a refrigerator main body 2 having an outer box 21, a bottom plate 3 provided on the bottom surface of the refrigerator main body 2, leg portions 8 respectively disposed below the left and right front ends of the refrigerator main body 2, and left and right sides of the refrigerator main body 2. A roller 6 disposed below the rear end portion, a reinforcing member 4 provided at each of the left and right lower ends of the refrigerator main body 2, and a base plate 5 provided below the rear portion of the reinforcing member 4 are provided. .

<Refrigerator body>
The refrigerator body 2 includes an outer box 21, an inner box (not shown), and a heat insulating box (not shown) filled between the outer box 21 and the inner box. Consists of.

<Outer box and bottom plate>
The outer box 21 is a steel plate that forms the upper surface and the left and right outer surfaces of the refrigerator body 2 (see FIG. 2), and is formed by press molding. The outer box 21 includes two side plates 21a and 21b (see FIG. 2) and a top plate (not shown) continuous with the side plates 21a and 21b, and has a U-shape with the front, back and bottom surfaces open. doing. At the lower part of the outer box 21, the front plate 22 provided on the front side, the pair of left and right reinforcing members 4 provided on the left and right inner walls of the lower end part of the outer box 21, and the lower part of the outer box 21 are provided. A bottom plate 3 and a base plate 5 are attached.

  The bottom plate 3 is a steel plate installed horizontally on the bottom surface of the refrigerator body 2.

<Reinforcing member>
As shown in FIG. 1, the reinforcing member 4 is a pair of left and right steel plate skeleton members installed from the front end portion to the rear end portion of the left and right lower end portions of the outer box 21. The reinforcing member 4 includes a front and rear frame portion 4a that extends in the front-rear direction and a vertical frame portion 4b that extends upward from the rear end of the front and rear frame portion 4a in an L shape. And is formed in a substantially L shape as a whole (see FIGS. 2 and 3). Leg brackets 81 and 82 having leg portions 8 attached to the front ends are fixed to the front end portions of the front and rear frame portions 4a of the left and right reinforcing members 4 by fasteners 83 and 84, respectively. A roller 6 is rotatably supported by a shaft support pin 61 (see FIG. 6) at the rear ends of the front and rear frame portions 4a of the left and right reinforcing members 4.

  As shown in FIG. 3, the left and right reinforcing members 4 include front and rear frame portions 4 a, upper and lower frame portions 4 b, a horizontal plate portion 4 c, a rising portion 4 d, a flange portion 4 e, a folding portion 4 j, Roller installation hole 4f, cut-and-raised part 4g (see FIG. 5), shaft support hole 4h (see FIG. 5), pin drop prevention part 4i, front end reinforcing rib 4k, rear end reinforcing rib 4m, leg part An installation portion 4n, a roller installation portion 4o, a screw hole 4p, and the like are formed.

  Since the left and right reinforcing members 4 are formed in a substantially symmetrical shape and are attached in a symmetrical state, the left reinforcing member 4 is mainly described, and the description of the right reinforcing member 4 is omitted.

  The front / rear frame portion 4a has an L-shape when viewed from the longitudinal section of a horizontal plate portion 4c that extends horizontally in the front-rear direction and a rising portion 4d that is bent upward from the left end of the horizontal plate portion 4c. Formed. The front and rear frame part 4a has a rising part 4d formed on the left end part side, a flange part 4e and a folding part 4j formed on the right end part side, a front end reinforcing rib 4k formed on the front end part, and a rear end on the rear end part Reinforcing ribs 4m are formed, reinforcing portions 4q are formed in the vicinity of the rollers 6, and the peripheral portions of the front and rear frame portions 4a are reinforced.

  As shown in FIG. 3, the upper and lower frame portions 4 b are angle steel shapes (angle steel shapes) in a cross-sectional view standing at the corners of the left and right rear ends of the front and rear frame portions 4 a. A rear end reinforcing rib 4m is formed at the lower base end portion of the upper and lower frame portions 4b.

  Leg brackets 81 and 82 having legs 8 (see FIG. 1) attached to the front end of the horizontal plate 4c of the front and rear frame 4a are fastened with fasteners 83 and 84 (see FIG. 1). A leg installation portion 4n is formed, and a roller installation portion 4o for arranging the roller 6 is formed at the rear end portion. The horizontal plate portion 4c is disposed horizontally along the inner walls at the inner lower ends of the left and right side plates 21a, 21b (see FIG. 2).

  The rising portion 4d is a vertical portion that is bent in an L shape when the lateral edge (one end) in the left-right direction of the horizontal plate portion 4c is viewed in cross section, and extends in the front-rear direction along the horizontal plate portion 4c. It extends in a substantially band shape. A side plate 41 (see FIG. 6, FIG. 8A and FIG. 8B), which will be described later, is attached to the outer wall surface and lower surface of the rising portion 4 d so as to be in contact with each other.

  The flange portion 4e is bent and formed in an L shape in a cross-sectional view from the rear end portion of the inner edge portion (the other end portion) of the horizontal plate portion 4c toward the center in the front-rear direction. A side edge flange for reinforcement. The flange portion 4e extends in a belt shape in the front-rear direction along the rising portion 4d.

  As shown in FIGS. 4 and 5, the roller installation portion 4o is formed at a reinforced portion between the flange portion 4e at the rear portion of the reinforcing member 4 and the rising portion 4d. The roller installation portion 4o is formed wider than the lateral width of the central portion of the reinforcing member 4 in accordance with the width in the left-right direction of the double wheel roller 6. The roller installation portion 4o includes a roller installation hole 4f, a cut and raised portion 4g projecting downward from the roller installation hole 4f, a shaft support hole 4h formed in the cut and raised portion 4g, and a flange portion 4e. And a pin dropout prevention portion 4i that extends from the shaft and holds the pivot pin 61 is formed.

  As shown in FIG. 5, the roller installation hole 4f is a hole in which the roller 6 is rotatably inserted, and is viewed in plan view on the horizontal plate portion 4c between the rising portion 4d and the flange portion 4e. It is formed in a rectangular shape (see FIGS. 7A and 7B). The roller installation hole 4f is formed by forming a cut and raised portion 4g toward the lower side.

  The cut and raised part 4g is a part formed by cutting and raising the roller installation hole 4f in the lower direction at the rear end part of the horizontal plate part 4c. Since the cut and raised portion 4g is formed by bending the peripheral portion of the roller installation hole 4f downward, it has a function of improving the strength of the peripheral portion of the roller installation hole 4f.

  The shaft support hole 4h is a pair of left and right through holes drilled in the cut and raised portion 4g, and a shaft support pin 61 that supports the roller 6 is rotatably and detachably inserted.

  As shown in FIG. 5, the pin dropout prevention portion 4 i is a protruding piece for preventing the pivot pin 61 from coming off, which holds the head 61 a formed at one end of the pivot pin 61 while restraining it from the outside. As shown in FIGS. 6 (a) and 6 (b), the pin dropout prevention portion 4i is formed from the upper end portion of the flange portion 4e in the vicinity where the head portion 61a of the shaft support pin 61 inserted into the shaft support hole 4h is disposed. The protruding piece extended upward is folded back downward so as to contact the end face of the head 61 a of the pivot pin 61. The pin dropout prevention portion 4i is not limited to the one formed integrally with the reinforcing member 4, and may be a separate member such as a split pin or a screw as long as it can prevent the pin from dropping off.

  The part which suppresses the head part 61a of the pivotal support pin 61 of the pin dropout prevention part 4i formed as shown in FIG.5 and FIG.6 (b) is arrange | positioned on the axial center line of the left and right pivotal support holes 4h. As shown in FIG. 6 (a), the pin dropout prevention portion 4i formed by bending downward so that the tip end side is folded, when the head is bent upward, the head 61a of the pivot pin 61 that has been suppressed is opened. Therefore, it is possible to replace the roller 6 by pulling out the shaft support pin 61.

  As shown in FIG. 3, the folding portion 4j is formed by folding a side edge flange-shaped portion protruding upward on the right edge of the horizontal plate portion 4c toward the horizontal plate portion 4c. It is a reinforced part.

  The front end reinforcing rib 4k is formed to connect the front end of the rising portion 4d and the front end of the leg installation portion 4n, and is a reinforcing portion for improving the strength of the reinforcing member 4 on the front end side. The front end reinforcing rib 4k is formed by bending a piece extending forward from the front end of the leg installation portion 4n.

  The rear end reinforcing rib 4m is a reinforcing portion for improving the strength of a portion where the front and rear frame portions 4a and the upper and lower frame portions 4b are bent at a right angle. The rear end reinforcing rib 4m is formed from the rear end right end of the horizontal plate portion 4c to the upper and lower frame portions 4b so as to face the front end reinforcing rib 4k via the horizontal plate portion 4c.

  The leg installation part 4n is a part arranged in a state where the leg brackets 81 are overlapped with each other, and is larger than the width of the central part of the reinforcing member 4 in accordance with the shape of the leg brackets 81 (see FIG. 1). Widely formed. The leg installation portion 4n is formed with a screw hole into which fasteners 83 and 84 for fixing the leg bracket 81 to the front end portion of the reinforcing member 4 are screwed.

<Side plate>
As shown in FIGS. 6A and 6B, the side plate 41 is formed in an L-shaped angle steel when viewed in a longitudinal section, and the side formed upward is the side of the rising portion 4d. A side (see FIG. 7A) that is disposed adjacent to the outside and is oriented in the horizontal direction is disposed so as to support the horizontal plate portion 4c from below.

<Laura>
The roller 6 includes a pair of left and right cylindrical resin wheels that can be rotated when the refrigerator 1 is moved (see FIG. 1). As shown in FIGS. 6 and 7, the roller 6 is composed of a double wheel in which two wheels are adjacently supported by a shaft support pin 61. Thus, when the roller 6 is a double wheel, since the taper in the axial direction becomes small, there is an effect of suppressing rattling, but there may be only one wheel.

<Leg>
As shown in FIG. 1, the leg portion 8 is a substantially cylindrical resin support member that supports the left and right front end portions of the refrigerator 1 from below. The leg portion 8 is attached to the leg brackets 81 and 82 by a screw-like attachment 85 so that the height can be adjusted in the vertical direction. The leg bracket 81 including the leg portion 8 is attached to the front end portion of the reinforcing member 4 by fasteners 83 and 84. The leg brackets 81, 82, the front end side fasteners 83, and the attachments 85 are disposed on a center line L <b> 1-L <b> 1 connecting the roller 6 and the fasteners 83. The fasteners 84 are fastened to a plurality of appropriate positions on the lower surface of the leg portion installation portion 4n and the horizontal plate portion 4c of the reinforcing member 4 with a predetermined interval. In addition, you may provide the roller 6 not only the leg part 8 in the left-right front-end part of a refrigerator.

<Base plate>
As shown in FIG. 8, the base plate 5 is a plate member on which the compressor 7 and the like are mounted, and is installed under the rear part of the left and right reinforcing members 4 (see FIGS. 1 and 2). In order to fix the compressor 7 to the base plate 5, the notch portion 5 a formed at the substantially central portion of the left and right end portions, the fitting convex portion 5 b formed protruding upward, and the compressor 7. And a projecting projection 74 formed integrally with the base plate 5 so as to project greatly upward, a heat radiation hole 5d formed in the lower center portion of the compressor 7, and front and rear end portions of the base plate 5 The side edge flanges 5e and 5f formed in the above and the reinforcing protrusions 5g formed in large numbers at appropriate positions are formed.

  The notch portion 5 a is a portion that is arranged in a state where the roller 6 is rotatably inserted, and is notched in the left and right ends of the base plate 5 in a U shape.

  The fitting convex portion 5 b is a portion where the opening 73 b formed on the lower surface of the rubber seat 73 is fitted and held. The fitting convex portion 5b is made of, for example, a circular emboss in a plan view press-formed in a reverse concave shape. Two fitting protrusions 5b are arranged opposite to each other diagonally with a heat radiating hole 5d formed at the lower center of the compressor 7 as a center.

  The heat radiating hole 5d is composed of one round through hole formed below the compressor 7, but the arrangement position and shape are not particularly limited, and may be changed as appropriate.

  The side edge flanges 5e and 5f are reinforcing portions that are bent in order to improve the strength of the base plate 5. The side flanges 5e and 5f extend in the left and right directions in the form of belts on the entire front end and rear end of the base plate 5. .

  The reinforcing convex part 5g is an uneven part press-molded to improve the strength of the plate surface of the base plate 5, and the arrangement position and shape are not particularly limited and may be appropriately changed.

  In the embodiment of the present invention, the base plate 5 is not required to have high strength by pivotally supporting the roller 6 on the reinforcing member 4 fixed to the outer box 21 instead of the base plate 5. It is made of resin. Thus, the whole refrigerator can be reduced in weight by switching the base plate 5 from metal to resin.

<Compressor>
As shown in FIG. 8, the compressor 7 includes a housing 71, a bracket 72 fixed to the lower surface of the housing 71, a rubber seat 73 whose upper portion is engaged with a through hole 72 b of the bracket 72, and a rubber seat 73. Are fixed to the base plate 5, and a fixing convex portion 74 and a fitting convex portion 5 b, and a retaining ring 75 attached to the fixing convex portion 74.

  The casing 71 is a metal case of the compressor 7 that compresses the refrigerant into a high-temperature and high-pressure gas refrigerant.

  The bracket 72 is made of a steel plate that is attached to the lower side of the casing 71 and is rectangular in plan view.

  The through holes 72 b are, for example, holes whose positions can be adjusted formed at the four corners of the bracket 72, and annular engagement grooves 73 c formed at the upper part of the rubber seat 73 are fitted therein.

  As shown in FIG. 9, the rubber seat 73 is a plurality of (four) seats for vibration isolation of the compressor 7, and is attached to the lower side of the bracket 72 provided on the compressor 7. The rubber seat 73 into which the fitting convex portion 5b of the base plate 5 is fitted is the same as the rubber seat 73 into which the fixing convex portion 74 is inserted. In the plurality of rubber seats 73, two (predetermined number) of rubber seats 73 are fixed to the base plate 5 by fixing convex portions 74, and the remaining two rubber seats 73 are fixed to the base plate 5 by fitting convex portions 5b. It is supported by. The rubber seat 73 has a substantially cylindrical rubber seat body 73a, an opening 73b formed at the lower end of the rubber seat body 73a, the engagement groove 73c, and a mounting portion 73d on which the bracket 72 is mounted. And a fixing protrusion insertion hole 73e into which the fixing protrusion 74 is inserted.

  The rubber seat body 73a is made of elastic rubber or synthetic resin. The rubber seat main body 73 a is interposed between the upper surface of the base plate 5 and the lower surface of the bracket 72 and can store the drive vibration of the compressor 7.

  The opening 73 b is formed so that the inner opening edge is press-fitted into the fitting convex portion 5 b, and the opening end surface is placed on the upper surface of the base plate 5.

  As shown in FIG. 8, the engagement groove 73c is a groove with which the through-hole 72b of the bracket 72 is engaged, and is formed continuously on the upper side of the mounting portion 73d. The engagement groove 73c is formed so as to cut out an annular groove on a protrusion formed in a cylindrical shape upward from the mounting portion 73d. For this reason, the upper side of the engaging groove 73c is formed in the locking claw shape (refer FIG. 9) which the periphery of the through-hole 72b locks.

  The mounting portion 73d is a flat surface that is formed on the upper portion of the substantially cylindrical rubber seat body 73a and supports the compressor 7 with the bracket 72 interposed therebetween.

  The fixing protrusion insertion hole 73e is a hole formed in the vertical direction along the center line of the hollow rubber seat 73, and communicates with the opening 73b.

  The fixing convex portion 74 is a resin stud pin formed integrally with the base plate 5 so as to protrude upward from the base plate 5. An annular fixing groove 74a in which a retaining ring 75 is mounted on the upper end portion and an annular convex portion 73f formed on the inner side of the mounting portion 73d of the rubber seat 73 are engaged with the upper portion of the fixing convex portion 74. The locking groove 74b is formed. The fixing convex portion 74 is fixed by being inserted into the fixing convex portion insertion hole 73e of the rubber seat 73 and the through hole 72b of the bracket 72 and engaging the retaining ring 75 with the fixing groove 74a.

  The retaining ring 75 is a C-shaped metal plate member attached to the fixed groove 74a. The retaining ring 75 only needs to be able to be fixed to the upper portion of the fixing convex portion 74, and may be a substantially annular member that is press-fitted and fixed, or may be a nut-shaped member.

≪Action≫
Next, the effect | action of the refrigerator 1 which concerns on embodiment of this invention is demonstrated along an assembly | attachment procedure, referring FIGS. The assembling procedure is an example and may be changed as appropriate.

  First, as shown in FIG. 5, the two rollers 6 are inserted into the roller installation hole 4f, and the position of the shaft hole 6a is adjusted to the shaft support hole 4h. In this state, as shown in FIG. 6A, the shaft support pin 61 is inserted into the shaft support hole 4h and the shaft hole 6a (see FIG. 5).

  Next, the pin dropout prevention portion 4i facing in the lateral direction is bent so as to be folded downward as shown in FIG. 6 (b). Then, as shown in FIG. 5, the head portion 61a of the pivot support pin 61 is sandwiched between the pin dropout prevention portion 4i and the cut and raised portion 4g. For this reason, the shaft support pin 61 can support the roller 6 rotatably without falling off from the shaft support hole 4h.

  The shaft support pin 61 can be removed by bending the pin drop prevention portion 4i so as to be raised to the original horizontal state shown in FIG. For this reason, the roller 6 and the shaft support pin 61 can be appropriately replaced when deteriorated. The roller 6 is attached to and detached from the reinforcing member 4 in this way.

  Next, as shown in FIG. 8, the compressor 7 is mounted on the base plate 5. In this case, first, the two rubber seats 73 are fitted into the fixing convex portions 74, respectively. Further, the two rubber seats 73 are respectively fitted into the fitting convex portions 5b. The through-hole 72b of the bracket 72 to which the compressor 7 is fixed is pushed into the engagement groove 73c of each rubber seat 73 and is fitted outside. The compressor 7 can be fixed on the base plate 5 by engaging the retaining ring 75 with the fixing grooves 74 a of the two fixing protrusions 74.

  As shown in FIG. 8, the compressor 7 attached to the upper surface of the base plate 5 in this way includes two fixing convex portions 74 and two fitting convex portions 5 b integrally formed on the base plate 5. Therefore, the number of fixing convex portions 74 and the number of retaining rings 75 can be halved, and the number of assembling steps and costs by the fixing convex portions 74 can be reduced. Even if there is no fitting convex portion 5b, there is one fixing convex portion 74 (stud pin) for fixing and one fixing convex portion 74 (stud pin) for preventing rotation. Is possible. By reducing the number of stud pins in this way, vibration can be suppressed. Further, since the base plate 5 is made of resin, the fixing convex portion 74 can be molded integrally with the base plate 5 with resin, and the cost can be reduced.

  Then, as shown in FIG. 1, the front plate 22 is screwed between the left and right side plates 21a and 21b of the U-shaped outer box 21 that has been pressed.

  Next, the reinforcing member 4 is placed on the side plate 41, and the side plate 41 and the reinforcing member 4 are inserted along the inner wall surfaces of the lower ends of the side plates 21a and 21b of the outer box 21, and the front side of the outer box 21 and The screw member is screwed in from the side surface, and the reinforcing member 4 and the side plate 41 (see FIG. 4) are screwed to the front plate 22. Thereby, the reinforcing member 4 to which the roller 6 is attached can be attached to the left and right lower ends of the outer box 21.

  In this case, as shown in FIG. 3, the reinforcing member 4 includes a rising portion 4d bent in an L shape, a flange portion 4e, a folded portion 4j, a front end reinforcing rib 4k, and a rear end reinforcing rib 4m. As a result, the strength can be improved. As shown in FIG. 5, the reinforcing member 4 can further improve the strength by the side plate 41 being adjacent to the outside of the rising portion 4 d.

  Around the roller installation hole 4f formed between the rising portion 4d of the reinforcing member 4 and the flange portion 4e, a cut and raised portion 4g is formed by cutting and raising the roller installation hole 4f downward. Therefore, the strength can be improved. For this reason, the shaft support hole 4 h formed in the cut and raised portion 4 g can firmly support the shaft support pin 61.

  Next, as shown in FIG. 2, the base plate 5 on which the compressor 7 is mounted is screwed to the lower side of the rear end portions of the left and right reinforcing members 4. Thereby, the attachment of the lower component of the refrigerator 1 is completed.

  As shown in FIG. 1, since the roller 6 is configured to be pivotally supported by the reinforcing member 4 instead of the pedestal 5, the roller 6 can be positioned on the outside and the load can be stably supported. . Further, when the base plate 5 is attached to the lower side of the reinforcing member 4 including the rollers 6, the base plate 5 is provided with notches 5a in which the left and right rollers 6 are rotatably inserted at both ends. As a result, the reinforcing member 4 that pivotally supports the roller 6 can be arranged in a state of being overlapped in the vicinity of the inside of the lower end portion of the outer box 21. For this reason, the left and right rollers 6 and the leg portions 8 provided on the reinforcing member 4 can be arranged in a balanced manner at equal positions in the front, rear, left and right directions of the bottom corners of the refrigerator 1. As a result, the load applied to the left and right rollers 6 is equalized. In addition, what is formed in the both ends of the base 5 is not restricted to the notch part 5a, The side part of another shape which avoids interference with the roller 6 may be sufficient.

  As shown in FIG. 1, the configuration is such that a part of the roller 6 in the axial direction is positioned within the width dimension of the side plate 41 on which the reinforcing member 4 is placed. Thereby, since the roller 6 can be installed on the outer side in the width direction and can be installed on the rear end side of the refrigerator 1, it is possible to suppress twisting and falling. Depending on the balance of the center of gravity by the compressor 7, the center line L2-L2 of the left and right rollers 6 may be the center line L3-L3 of the base plate 5 on which the compressor 7 is mounted, or the center of the compressor 7 (not shown). ) May be arranged on the rear side.

  In this way, the rollers and the legs 8 disposed at the lower part of the refrigerator 1 are disposed at positions close to the four corners in the front-rear and left-right directions when viewed from the bottom with respect to the refrigerator 1, so that the load is evenly received. Can do. For this reason, twist and fall can be suppressed.

≪Modification≫
The present invention is not limited to the above-described embodiment, and various modifications and changes can be made within the scope of the technical idea. The present invention extends to these modifications and changes. Of course.

  For example, in the above-described embodiment, the case where the rollers 6 are attached only to the left and right rear portions of the bottom portion of the refrigerator 1 illustrated in FIG. 1 has been described, but the rollers 6 are leg portions at the lower front end portion of the refrigerator body 2. The brackets 81 and 82 may also be provided. If it does in this way, since the roller 6 is arrange | positioned at four places of the front-back left-right edge part of the lower side of the refrigerator main body 2, when moving the refrigerator 1, it can make it easy to perform a movement operation | work.

  Further, the leg portion 8 may be changed to the roller 6. Further, the leg portion 8 may be one in which a rotatable caster is disposed on a leg bracket 81 to which the leg portion 8 is attached.

  4 and 5 has been described in the case where the roller installation hole 4f is formed in the reinforcing member 4 by cutting and raising the roller installation hole 4f in the lower direction, the roller installation hole 4f and the shaft are formed in the reinforcement member 4. It is only necessary that the support hole 4h can be integrally formed, and the roller installation hole 4f may be cut and raised upward.

  Further, the numbers of the fitting convex portions 5b and the fixing convex portions 74 shown in FIG. 8 may be appropriately changed by adding them according to the size of the compressor 7 or the like. Also in this case, the fitting convex part 5b and the fixing convex part 74 are provided in three pieces, four pieces, or five pieces each, and rubber seats 73 holding the brackets 72 are respectively provided below the compressor 7. It is desirable to arrange and hold them on the diagonal lines.

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Refrigerator main body 4 Reinforcement member 4d Standing part 4e Flange part 4f Roller installation hole 4g Cutting raising part 4h Shaft support hole 4i Pin dropout prevention part 4q Reinforcement part 5 Base plate 5a Notch part 5b Fitting convex part 6 Roller 7 Compressor 8 Legs 21 Outer Box 41 Side Plate 61 Axle Support Pin 61a Head 72 Bracket 72b Through Hole 73 Rubber Seat 73b Opening 74 Fixing Protrusion 83 Fastener L1-L1 Center Line

Claims (4)

A refrigerator body having an outer box;
Rollers arranged respectively on the left and right rear lower sides of the refrigerator body,
Reinforcing members that extend in the front-rear direction at the left and right lower parts of the refrigerator body,
A refrigerator provided with a base plate attached to the reinforcing member,
The refrigerator is characterized in that the rollers are pivotally supported by the left and right reinforcing members, and the base plate is made of resin.   2. The refrigerator according to claim 1, wherein a cutout portion into which the left and right rollers are rotatably inserted is formed at both ends of the base plate.   The refrigerator according to claim 1 or 2, wherein a part of the roller in the axial direction is located within a width dimension of the side plate on which the reinforcing member is placed. On the upper surface of the base plate, a fixing convex portion protruding upward is formed integrally with the base plate,
4. The bracket according to claim 1, wherein a bracket provided on the compressor and a rubber seat attached to a lower side of the bracket are inserted into the fixing convex portion. 5. Refrigerator.

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