JPH043876A - Rack device for refrigerator - Google Patents

Abstract

PURPOSE:To free the up-and-down movement of both of a rack and a frame by a method wherein the rack and the frame, holding the rack, are engaged and supported through rollers, guide pillars and sliding grooves, which are engaged with the rollers, one end of a roller shaft, retaining holes and the like respectively. CONSTITUTION:In order to move a rack 1 up-and-down, a force is applied into a direction shown by an arrow sign B in a diagram by holding the left and right ends of this side of a frame 2, then, engagement between one end of a roller shaft 4 and a retaining hole 15 is released and the rack 1 becomes free from up-and-down move ment. On the other hand, a roller 5 is not moved forwardly or rearwardly by a guide pillar 14 and, therefore, a spring 7 is compressed between this side of the roller and a bearing unit 3. When the rack is moved upward or downward while holding the left and right ends of this side of the rack 1 under this condition as it is, the rollers 5 can be moved upwardly or downwardly while being slide in sliding grooves 12 respec tively. When the rack 1 is moved to a necessary position, the rack 1 is moved into a direction shown by an arrow sign A in the diagram or toward this side by the restoring force of the spring 7 and the roller shaft 4 is hooked by a retaining hole 15 whereby the frame 2 can be fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a shelf device for a refrigerator that is used inside a refrigerator and whose vertical position can be changed in various ways.

2. Description of the Related Art Conventionally, this type of shelf device for a refrigerator has been disclosed, for example, in Japanese Utility Model Publication No. 8604/1983. This conventional shelf device has two pairs of shelf supports that face each other on the left and right side walls of the inside of the refrigerator, a plurality of locking holes arranged at equal intervals on the shelf support supports, and a locking claw. and a shelf support provided with a locking claw. The upper locking claw is fitted over the locking hole, the lower locking claw is engaged below the locking hole, and the shelf bracket is inserted, and the shelf is placed on this shelf bracket. and hold it.

In the above configuration, the vertical position of the shelf can be adjusted by changing the fitting and engagement positions of the upper and lower locking claws of the shelf bracket and the locking holes of the shelf support support. It is.

Problems to be Solved by the Invention However, with the above configuration, in order to move the shelf up and down, you must remove the shelf, remove the shelf support from the shelf support support, and check the vertical position again to move the shelf to the appropriate position. There was the hassle of inserting the bracket into the shelf support post and placing the shelf on it.

SUMMARY OF THE INVENTION An object of the present invention is to provide a shelf device that can move up and down by pushing a frame holding a shelf to the depth side, and that can be reliably supported and fixed at that position when the pushing is stopped.

Means for Solving the Problems In order to achieve the above object, the shelf device of the present invention includes a frame for holding a shelf arranged in a refrigerator.

Bearings provided on both sides of the frame; roller shafts disposed parallel to both sides of the frame with one end protruding from the front bearing; A roller is supported by a roller shaft and has a concave groove on its circumferential surface, a spring is provided between the roller and the bearing portion on the front side, and a guide column is provided in the center of the roller, which extends vertically on both side walls of the refrigerator and faces each other. a pair of roller sliding grooves provided on the front side and a pair on the back side, and a pair of roller sliding grooves provided continuously at regular intervals on the front side wall of these roller sliding grooves, and r
The refrigerator shelf device is provided with a locking hole into which one protruding end of the roller shaft (j) can be engaged.

According to the above-described structure, the shelf and the frame are fixed by hooking one end of the roller shaft protruding from the front bearing part into the locking hole of the sliding groove provided in a pair on the front side and a pair on the back side. be done. To move the shelf vertically, first hold the left and right sides of the front of the shelf and frame and push it in the depth direction. At this time, one end of the roller shaft comes off the locking hole in the sliding groove, allowing the frame to move freely up and down, and each roller rotates while engaging the guide column and groove. ,
The shelf moves up and down. When the shelf has been moved to the required position, the force holding the shelf and frame is released, and the frame moves forward due to the restoring force of the spring, and one end of the roller shaft is moved to the nearest lock in the sliding groove. It gets caught in the hole and the shelf and frame are fixed again.

EXAMPLE Hereinafter, a refrigerator shelf device which is an example of the present invention will be described with reference to the drawings.

In Figure 1, l is the shelf on which food is placed, frame 2
held on top. As shown in FIG. 2, the frame 2 includes a left frame 2a, a right frame 2b, and a rear frame 2c and a connecting stay 2d that connect the left and right frames 2a and 2b.

As shown in FIGS. 2 and 3, reference numeral 3 denotes a bearing section, which is integrally formed with the left and right frames 2a and 2b, and is cut into two pairs of tongues on the back side and one on the front side. provided. Reference numeral 4 denotes a roller shaft, and the rollers 5 are movably supported by the roller shaft 4 between the bearing portions 3, respectively. A pair of rollers 5 are provided on the back side and a pair on the front side, each having a groove 6 on the circumferential surface, and a spring 7 is interposed between each roller 5 and the bearing portion 3 on the front side. Further, each shaft 4 is fixed to a bearing portion by shaft stoppers 8a and 8b.

As shown in FIG. 4, 9 is the refrigerator main body, and IO is an inner box molded from resin. 11 is foam insulation.

The space between the outer box and the inner box 10 of the main body 9 is filled with foam. 1
Reference numerals 2.13 denote a pair of sliding grooves fixed with screws or the like on the left and right sides of the inner box 10, respectively (see FIG. 1). Reference numeral 14 denotes a guide post which is fitted into the groove 6 of each roller 5.

As shown in FIGS. 5 and 6, reference numeral 15 denotes a locking hole, which is provided on the front side wall of the sliding groove 13 and faces one protruding end of the roller shaft 4. An inclined surface 16 is provided in the opening 15 to facilitate insertion of the roller shaft 4.

FIG. 5 shows a state in which the shelf l and the frame 2 are fixed inside the main body 9 of the refrigerator, and the rollers 5 are connected to the guide pillars 1 and 2, respectively.
4 and is housed in the sliding groove 12, and one protruding end of each roller shaft 4 on the near side is inserted into a locking hole 15 and locked. At this time, the concave groove 6 of each roller is
4, the roller shaft 4 is fixed in the front-rear direction, and the roller shaft 4 is provided with a shaft stopper 88.8b.
Due to the restoring force of the spring 7 incorporated in the shaft 4 between the roller 5 and the bearing portion 3, a force is exerted to push the entire frame 2 in the direction of the arrow, and the frame 2 is fixed. In addition, in this state, the shaft 4 is inserted into the locking hole I5 as indicated by R, and the entire shelf I is supported at four points, one pair each on the front side and the back side.
It is fixed in a stable state inside the refrigerator. To move the shelf l up and down, hold the front left and right sides of the frame 2 and apply force in the direction of arrow B, as shown in FIG. comes off and can move up and down freely.

Further, as described above, since the roller 5 is not moved in the front-rear direction by the guide post I4, the spring 7 is compressed between the roller 5 and the bearing portion 3 on the front side. In this state, if the front left and right sides of the shelf are held and moved upward or downward, the rollers 5 will move upward or downward while sliding in the sliding grooves 12, respectively. During the vertical movement, the force remains applied in the direction of arrow B, so the shelf does not fall, and each roller is attached to the guide column 14 with γ.
O moves up and down, and the shelf remains horizontal. Therefore, there is no problem even if the food is moved up and down with food still on it. When the shelf l has been moved to the required position, the force holding the shelf l and the frame 2 is released, and the restoring force of the spring 7 moves it in the direction of the arrow, that is, toward the front, and the roller shaft 4 locks into the locking hole. 15, the frame 2 returns to the state shown in FIG. 5, and the frame 2 is fixed. If the shaft 4 and the locking hole 15 are misaligned in the vertical direction after moving toward the front, the tip of the shaft 4 will move downward due to its own weight while sliding on the inclined surface 16 of the locking hole I5. It is fixed by being caught in the nearest locking hole.

Each roller 5 is prevented from shifting in the front-back direction by the guide column I4, and is in contact with the sliding grooves 12 and I3, respectively, so that the shelf will not tilt or shift in the left-right direction while the shelf l is moving up and down. do not have.

Effects of the Invention As described in 1, the shelf device of the present invention includes a shelf disposed in a refrigerator, a frame holding the shelf, a roller, a guide post and a sliding groove engaged with the roller, and a roller. One end of the roller shaft is engaged with and supported by the locking hole, etc., so if the shelf is pushed toward the depth side, the engagement between one end of the roller shaft and the locking hole is released, and both the shelf and the frame are moved in the vertical direction. It is now possible to move freely, and when the compression is loosened, it can be re-engaged at a predetermined position to provide stable support. Therefore, compared to the conventional example, there is no need to remove the shelf or frame from the inside of the refrigerator, which saves time and effort.The shelf is always kept under water by the engagement of the four rollers and the guide column, so the shelf It has the effect of being able to move stably even with food on it.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of essential parts of a refrigerator showing an embodiment of the present invention, Fig. 2 is a perspective view showing an embodiment of the frame, and Fig. 3 is an enlarged sectional view taken along line B-B in Fig. 2. , Fig. 4 is an enlarged γ↓ perspective view showing the engagement of the roller with the guide column and the sliding groove, Fig. 5
The figure is a sectional view taken along line 8-A in FIG. 1, and FIG. 6 is a sectional view showing a state in which the shelf is pressed toward the depth side in FIG. 5. l...Shelf 2...Frame 3...Bearing part 4
...Roller shaft 5...Roller 6...Concave groove 7
... Spring I2 ... Sliding groove 14 ... Guide column 15 ... Locking hole

Claims (1)

[Claims] a frame for holding shelves disposed in the refrigerator; bearings provided on both sides of the frame; and bearings disposed in parallel to the bearings on both sides of the frame,
a roller shaft having one end protruding from the front bearing portion; a roller supported by the roller shaft and having a groove on its circumferential surface; and a spring provided between the roller and the front bearing portion; There are roller sliding grooves that extend vertically on both sides of the refrigerator, face each other, have a guide column in the center, and have one pair each on the front side and the back side, and on the side wall on the front side of these roller sliding grooves. A shelf device for a refrigerator, comprising locking holes that are continuously provided at regular intervals and that can be engaged with one protruding end of the roller shaft.