JP3666277B2 - refrigerator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a frame provided in a drawer door, a roller provided in the frame, and a rail provided in an inner box of a refrigerator main body on which the roller slides in a drawer door of the refrigerator. .
[0002]
[Prior art]
5, 6, 7 and 8 are views showing the structure of a drawer door of a conventional refrigerator. 5 is an external side view of the refrigerator, FIG. 6 is a perspective view of a frame configuration provided on the drawer door, FIG. 7 is a cross-sectional view of the rail structure, and FIG. 8 is a perspective view of the rod.
In the figure, reference numeral 1 denotes a refrigerator, and an upper door 2, an inner door 3, and a drawer door 4 are provided at the front opening of the refrigerator. On the back side (back side) of the drawer type door 4, a U-shaped frame body 5 is formed as a whole. The frame body 5 has a pair of frames 7a and 7b fixed by screws 8 via a reinforcing plate 6 provided on the back surface of the drawer door 4, and the rear ends of the frames 7a and 7b are connected by a rod 9. Has been. As shown in FIG. 8, flat portions 10 are formed at both ends of the rod 9 and are bent downward as shown in FIG. Reference numerals 11 and 12 denote mounting holes provided in the bent portion as shown in FIG. 8 in the vertical direction in the flat portion 10, and reference numeral 13 denotes a rivet that fixes the upper mounting hole 11 and the frames 7a and 7b. Reference numeral 14 denotes a roller shaft in which the lower mounting hole 12 and the frame 7a (7b) are fixed by caulking. A moving roller 15 is rotatably provided on the roller shaft 14 and slides back and forth inside a pair of rails 16 provided on the inner box 17 of the refrigerator 1. In addition, the frames 7a and 7b including the moving roller 15 reciprocate on the upper part of the fixed roller 25, and the drawer door 4 can be pulled out. In addition, the refrigerator of the drawer door 4 is provided with a container 24, and the container 24 is supported and accommodated at the ends of the door frames 7a and 7b.
Conventional examples include JP-A-5-203339 and JP-A-7-133975.
[0003]
[Problems to be solved by the invention]
The frame structure of a conventional drawer door includes a frame standing on the left and right ends of the back surface of the drawer door, and a rod having a mounting surface at the rear end of the frame, and penetrates the frame rear end and the mounting surface. A hole is provided and the shaft of the roller is penetrated together and fastened together to form a frame integrated with the door.
The rod at the rear of the frame has the function of a rear beam for configuring the frame as a frame. In the conventional structure, when there is no rod, the moving roller is released from the rail when the frame swings to the left or right. As a result, the door could not be opened and closed, making it an indispensable part. That is, in such a structure, there is a problem that a part as a rod is necessarily required and the cost is increased.
In addition, the refrigerator production site also requires a space for assembling to make the frame into a frame, and there is a problem that a dedicated caulking facility and a stock location for the frame are also required.
[0004]
The present invention has been made to solve such problems, and the frame structure of the door is such that the rod is removed and the moving roller provided on the frame alone is removed from the rail provided on the inner box of the refrigerator body. It aims at providing the refrigerator which becomes the rail structure which does not do.
[0005]
[Means for Solving the Problems]
The refrigerator according to the present invention is provided in a drawer door, a frame standing on both right and left sides of the back surface of the drawer door, a roller for sliding the frame provided in a rear portion of each frame, and an inner box of the refrigerator body. is, the roller is a rail which roller sliding portion is provided which slides the frontage dimensions of the roller sliding portion of the rail upper flange provided on the upper surface portion of the roller sliding portion of the rail While making it smaller than the outer diameter of a roller, the rib provided in the lower part of the roller sliding part of the said rail and the edge part provided in the said frame lower part engage.
[0006]
Moreover, it arrange | positions so that the said edge part may be hooked on the said rib .
[0007]
Moreover, the said edge part is provided directly under the roller axis | shaft which rotates the roller provided in the said flame | frame.
[0008]
Further, the rib is provided with an open portion upward in the front-rear direction of the refrigerator, and the end portion is provided in the front-rear direction of the refrigerator below a roller shaft that rotates a roller provided in the frame . Is.
[0009]
Moreover, it arrange | positions so that the said rib may be hooked in the said edge part .
[0010]
The rib is provided immediately below a roller shaft that rotates a roller provided on the frame.
[0011]
Moreover, the said edge part is a rib which protrudes below from the lower surface part of the roller sliding part of the said rail .
[0012]
Further, a frame and a roller shaft that rotatably attaches the roller to the frame are provided, and a hole for attaching the roller shaft provided on the frame is subjected to burring, and then the roller shaft is crimped to the frame.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a cross-sectional view of the vicinity of the rail portion provided in the inner box of the refrigerator body, and FIG. 2 is a perspective view of the rail portion. In the figure, 16 is a rail provided in the inner box 17 of the refrigerator body 1, and a moving roller 15 provided in the door frame 7a (7b) slides in the rail 16 in the front-rear direction in the cabinet. The moving roller 15 is rotatably provided on the roller shaft 14. As shown in FIG. 1, the rail 16 has a flange 18 formed at the end of the top surface of the rail 16 so that the frontage dimension A is smaller than the outer diameter B of the moving roller 15. 18 is caught. As shown in FIG. 2, the U-shaped rib 19 that is integrated with the rail 16 from the lower surface of the rail 16 is formed to extend in the front-rear direction in the refrigerator so as to open upward. An end face 20 is provided immediately below the mounting portion of the moving roller 15 of the both side frames 7a and 7b, and is arranged so as to enter the inside of the U-shaped rib 19 provided on the rail 16, so that each of the both side frames 7a and 7b is a rail. 16 is held.
[0014]
As described above, the rib 19 of the rail 16 has a U-shape. However, the U-shape may be another shape such as a U-shape instead of the U-shape, as long as the end surface 20 of the frames 7a and 7b is hooked.
Moreover, although the flange 18 is provided in the top | upper surface edge part of the rail 16, even if it is not the edge part of a ceiling surface, the roller 15 is caught by the upper surface part, and convex parts etc. What is necessary is just to provide the hook part.
[0015]
As shown in FIG. 1, the roller shaft 14 of the moving roller 15 has a burring hole (burring portion) 21 by burring the through-holes of the frames 7 a and 7 b formed of a mounting sheet metal. The plate thickness of the burring hole 21 is increased from the plate thickness C of the frame to a plate thickness D, and thereafter, the roller shaft 14 of the moving roller 15 is caulked and fixed to the frames 7a and 7b.
Therefore, since the mounting hole to which the moving roller 15 of the frame is attached is burring molded, it maintains the same dimensional relationship (the thickness dimension of the frame and the rod) as when a conventional rod is installed, and the roller shaft of the moving roller These dimensions can be used as common parts without change.
Burring is a common processing method in sheet metal processing.For example, when a contact area larger than the sheet thickness of the material is required, after making a hole smaller than the required diameter, the pin having the required diameter is formed. This is a processing method in which a hole is spelled and the end face of the hole is raised while expanding the diameter.
[0016]
In this illustration, the left and right flutters of the door are basically restricted by reducing the left and right backlash of the rail 16 and the moving roller 15, and the frame lower end 19 and the U-shaped rib 19 of the rail 16 are shown wider than the above. However, both may be the same size or vice versa.
[0017]
In the refrigerator of the drawer door 4, a container 24 is provided, and the container 24 is supported and housed at the ends of the door frames 7a and 7b as shown in FIG.
[0018]
As described above, the rod provided on the rear side of the frame, which had the function of the rear beam in order to configure the frame provided on the back of the door as a frame, is no longer necessary, reducing the number of parts. I was able to. In addition, when the rod is removed, it is possible to prevent the frame from swinging left and right, and the moving roller 15 from being removed from the rail 16 to make it impossible to open and close the door.
Further, in the present invention, a flange is provided at the end of the rail ceiling surface so that the opening size A of the rail 16 provided in the refrigerator body 1 on which the moving roller 15 of the door frames 7a and 7b slides is smaller than the outer diameter B of the moving roller. 18 is provided on the rail side so that the lower ends of both side frames 7a and 7b wrap, so that both side frames 7a and 7b can be held by the rail 16, respectively. Even if it is swung to the left or right, only a small amount is required, and the moving roller 15 does not derail. (When considering only the prevention of wheel removal of the moving roller 15, the frame 7a, 7b itself is twisted if a product variation or load load is applied even if a flange is provided on only one of the upper and lower sides of the rail 16. The roller 15 may be removed.
It is also conceivable to provide flanges on the top and bottom of the rail 16 so that the moving roller 15 is fitted into the rail 16, but the moving roller 15 has a circular shape, and the surface in contact with the rail flange is received by a point. Compared with the case where the rod 9 is provided, it is not satisfactory in terms of quality such as left and right flutter and weakness of the opening / closing operation. )
Therefore, the rod 9 located at the rear of the frames 7a and 7b is abolished to reduce costs, and the frame assembly dedicated caulking equipment, space and stock space at the production site of the refrigerator can be reduced, and the production is inexpensive. It is possible to provide products with good quality equivalent to conventional products.
[0019]
Embodiment 2. FIG.
An embodiment of the present invention will be described below with reference to FIG. FIG. 3 is a perspective view of the rail portion. In the figure, the rail 16 is formed with a flange 18 at the end of the top surface of the rail 16 so that the frontage dimension A is smaller than the outer diameter B of the moving roller 15 as in the first embodiment. The upper part is hooked on the flange 18. In addition, the U-shaped rib 19 is formed in the front-rear direction so as to open upward from the lower surface of the rail 16 so that the lower side end portion 20 of the frames 7a and 7b is not limited to the immediate lower end surface of the moving roller 15 mounting portion. Each of the two side frames 7a and 7b is held by the rail 16 so as to enter the inside of the U-shaped rib 19 provided on the rail 16 in the longitudinal direction.
The lower edge 20 of the frames 7a and 7b is disposed so as to enter the inside of the U-shaped rib 19 provided on the rail 16 in the front-rear direction in the refrigerator, thereby further improving the refrigerator than in the first embodiment. The left and right flutters (runout) of the door 4 are eliminated.
[0020]
Embodiment 3 FIG.
Hereinafter, an embodiment of the present invention will be described with reference to FIG. FIG. 4 is a cross-sectional view of the vicinity of the rail portion provided in the inner box 17 of the refrigerator main body 1. In the figure, the upper part of the outer diameter B of the moving roller 15 is hooked by forming a flange 18 on the top surface end of the rail 16 provided in the refrigerator main body 1 and protruding downward from the bottom surface of the rail 16. The projecting ribs 22 provided on the rail 16 are formed so that the L-shaped bent side 23 is opened upwards directly below the mounting portions of the moving rollers 15 of the frames 7a and 7b. The moving rollers 15 are held so as not to be derailed in such a manner that each of the both side frames 7a and 7b is hooked on the rails 16 so as to enter the inside of the rail 23.
Therefore, a product having a quality equivalent to that of a frame having a conventional rod is obtained, and the mold structure is less expensive than the structure of FIG.
[0021]
As described above, the bent sides 23 of the frames 7a and 7b are L-shaped and open upward. However, the bent side 23 is caught by the rail 16 even in other shapes such as a U-shape instead of the L-shape. As long as the moving roller 15 does not derail from the rail 16, it is sufficient.
Moreover, although the flange 18 is provided in the top | upper surface edge part of the rail 16, the position of the flange 18 may not be the edge part of a ceiling surface, but the upper surface front surface may be sufficient as it. Moreover, the shape of the flange 18 should just have provided hook parts, such as a convex part, so that the roller 15 may be caught and it may not remove | deviate from a wheel.
[0022]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0023]
The refrigerator according to the present invention is provided in a drawer door, a frame standing on both right and left sides of the back surface of the drawer door, a roller for sliding the frame provided in a rear portion of each frame, and an inner box of the refrigerator body. is, the roller is a rail which roller sliding portion is provided which slides the frontage dimensions of the roller sliding portion of the rail upper flange provided on the upper surface portion of the roller sliding portion of the rail while smaller than the outer diameter of the roller, since the lower rib and the frame provided in the lower end portion provided in the roller sliding portion of the rail is engaged, the roller ends up derailing from the rail door It is possible to prevent the opening / closing operation of the camera from becoming impossible. In addition, since the frame is configured as a frame body, the rods connected between the rear portions of the frame can be removed to reduce costs, and the caulking equipment dedicated to frame assembly, the space, and the stock location on the production site of the refrigerator can be reduced. Can be made cheaper and more productive.
[0024]
In addition, since the end portion is disposed so as to be hooked on the rib, a product having a quality equivalent to that of a frame having a conventional rod can be obtained.
[0025]
Further, since the end portion is provided immediately below a roller shaft that rotates a roller provided on the frame, even if the frame swings from side to side, the roller does not come off.
[0026]
Further, the rib is provided with an open portion upward in the front-rear direction of the refrigerator, and the end portion is provided in the front-rear direction of the refrigerator below a roller shaft that rotates a roller provided in the frame . Therefore, the left and right shake of the frame is reduced.
[0027]
In addition, since the ribs are disposed so as to be hooked on the end portions , a product having a quality equivalent to that of a frame having a conventional rod can be obtained.
[0028]
In addition, since the rib is provided immediately below a roller shaft that rotates a roller provided on the frame, even if the frame swings left and right, the roller does not come off.
[0029]
Moreover, since the said edge part is a rib which protrudes below from the lower surface part of the roller sliding part of the said rail, a moving roller does not remove | deviate from a rail.
[0030]
In addition, since a frame and a roller shaft that rotatably attaches a roller to the frame are provided, and the hole for attaching the roller shaft provided in the frame is burring processed, the roller shaft is crimped to the frame. The same dimensional relationship is maintained as when the rod is installed, and the dimensions of the roller shaft of the moving roller can be used as common parts without change.
[Brief description of the drawings]
FIG. 1 is a sectional view of a rail structure according to a first embodiment of the present invention.
FIG. 2 is a perspective view of a rail structure according to Embodiment 1 of the present invention.
FIG. 3 is a perspective view of a rail structure according to a second embodiment of the present invention.
FIG. 4 is a sectional view of a rail structure according to a third embodiment of the present invention.
FIG. 5 is an external side view of a conventional refrigerator.
FIG. 6 is a perspective view of a frame structure of a conventional drawer door.
FIG. 7 is a cross-sectional view of a conventional rail structure.
FIG. 8 is a perspective view of a conventional rod.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Refrigerator main body, 4 drawer door, 7a, 7b frame, 9 rod, 13 rivet, 15 moving roller, 16 rail, 18 flange, 19 U-shaped rib, 20 end surface, 21 burring part, 22 protruding rib, 23 Bending side, 24 containers, 25 fixed rollers.

Claims (8)

A drawer door, a frame erected on both the left and right sides of the back surface of the drawer door, a roller for sliding the frame provided at the rear of each frame, and an inner box of the refrigerator body, the roller sliding roller sliding portion and a rail which is provided to the frontage size of the roller sliding portion of the rail upper flange provided on the upper surface portion of the roller sliding portion of the rail smaller than the outer diameter of the roller to In addition, the refrigerator is characterized in that a rib provided at a lower portion of the roller sliding portion of the rail engages with an end portion provided at the lower portion of the frame. The refrigerator according to claim 1, wherein the rib is provided with an opening, and the end is hooked on the opening. The refrigerator according to claim 2 , wherein the end portion is provided directly below a roller shaft that rotates a roller provided on the frame. The rib is provided with an open portion upward in the front-rear direction of the refrigerator, and the end portion is provided in the front-rear direction of the refrigerator below a roller shaft that rotates a roller provided in the frame . The refrigerator according to claim 2. 2. The refrigerator according to claim 1 , wherein an opening is provided at the end, and the rib is hooked on the opening . 6. The refrigerator according to claim 5, wherein the rib is provided directly below a roller shaft that rotates a roller provided on the frame. 6. The refrigerator according to claim 5 , wherein the end portion is a rib protruding downward from a lower surface portion of the roller sliding portion of the rail .   A frame and a roller shaft that rotatably attaches a roller to the frame are provided, and a hole for attaching the roller shaft provided in the frame is subjected to burring processing, and then the roller shaft is crimped to the frame. The refrigerator in any one of Claims 1-7.

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