JPS6236049Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rail drawer, and more particularly, to a rail drawer that allows a drawer container to be freely inserted into and taken out of a box such as a refrigerator.

Conventionally, this type of device has been disclosed in Japanese Utility Model Application Publication No. 55-126187. In the rail pull-out device disclosed in the publication, a frame with rollers attached to the rear end is provided on both sides of a drawer part that can be taken in and out of the box, and fixed rails for guiding the rollers are fixed on both sides of the inner surface of the box. At the same time, a fixed roller for slidingly supporting the frame is provided near the front end of the fixed rail to form a one-stage drawer structure. For this reason, in cases such as refrigerators where the depth of the box body is limited, the dimensions that can be pulled out are limited, and in order to take out containers placed on the frame, the rollers at the rear end of the frame must be removed from the fixed rails. Nakatsuta.

In addition, a two-stage rail structure may be considered to increase the drawer size, but when storing items in the door and opening the door, such as in a refrigerator, the drawer size during constant use If I made it too large, there was a risk that the refrigerator would suddenly fall forward.

Therefore, the purpose of the present invention is to increase the size of the drawer when pulling out the drawer from the box and attaching/detaching the container, and also to allow the drawer to be pulled out in front of the box when the drawer is pulled out in regular use. To provide a rail pull-out device that does not pose a danger of falling over.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the rail pulling device of the present invention will be described in more detail with reference to preferred embodiments shown in the accompanying drawings.

1 to 4 show a rail drawer device according to an embodiment of the present invention applied to a lower drawer portion of a refrigerator.

This rail drawer includes a frame 3 with a U-shaped cross section and an open end facing outward, which is located on both sides of a storage container 2 that is taken in and taken out of a refrigerator box 1, and which suspends and supports the container 2 in a removable manner. , the rear end of the frame 3 (the end in the depth direction of the container drawer)
A frame support roller 4 is rotatably attached to the frame support roller 4 .

On the other hand, a fixed rail 5 having a U-shaped cross section is attached to the inner wall surface of the box 1 that substantially corresponds to the frame 3, and a main body side fixed roller 6 is rotated on the side wall of the box 1 near the front end of the fixed rail 5. It is movably mounted. As shown in FIG. 3, this fixed rail 5 is installed with its U-shaped opening facing inward, that is, toward the side of the container 2; Similarly, a U-shaped movable rail 7 is slidably accommodated, and its lower flange surface 7a is placed on and supported by the main body side fixed roller 6. A slider 8 is provided at the rear end of the movable rail 7 so as to reduce friction with the upper and lower parts of the inner surface of the fixed rail 5 so as to slide smoothly.

Lower flange portion 7 at the front end of the movable rail 7
The groove height of the rail 7 is enlarged by projecting downward, and a roller 9 is rotatably attached to the enlarged portion 7b. As shown in FIG. 3, this movable rail 7 has a frame 3 with its lower flange portion positioned between the upper and lower flange portions of the movable rail, and whose upper flange portion is positioned above the upper flange portion of the fixed rail 5. A frame support roller 4 provided at the rear end of the frame 3 is fitted together as shown in FIG.
is placed in the groove of the movable rail 7 and rotates on the inner surface of its lower flange, and the lower flange of the frame 3 is placed on the roller 9 at the front end of the movable rail, and is rotated by these two rollers 4 and 9. frame 3
is supported. Since the rollers 4 and 9 support the frame 3 with respect to the movable rail 7, the former roller 4 will be referred to as the first frame support roller, and the latter roller 9 will be referred to as the second frame support roller. I can do it.

By the way, the lower flange portion 7a of the movable rail 7
2 and 4, the movable rail 7 is located on the lower surface of the
As shown in the figure, when the body-side fixed roller 6 is in the most retracted position in the box 1 and is in contact with the rear surface of the enlarged part 7b of the movable rail 7, the rear end side near the fixed roller A restraining convex portion 10 that protrudes downward is formed. As is clear from FIG. 4, this stopping protrusion 10 has an arcuate outer surface so that it can move over the body-side fixed roller 6 when the movable rail 7 receives a pulling force exceeding a certain level. It is formed.

On the other hand, the frame 3 is pulled out from the lower surface of the lower flange portion of the frame 3, and a first frame support roller 4 attached to the rear end is attached to the movable rail 7.
A protruding stopper 11 is formed at a position such that it comes into contact with a second frame support roller 9 provided on the enlarged portion of the movable rail 7 when the movable rail 7 is at a position approximately 1/3 or 1/4 from the front end of the movable rail 7. In addition, the code|symbol 12 has shown the drawer door for pulling out the frame 3.

As is clear from such a configuration, in the rail pull-out device of the above embodiment, when the frame 3 is pulled out in normal use, the movable rail 7 has the stopping protrusion 10 in contact with the main body side fixed roller 6. Therefore, the withdrawal amount will not be large. In this way, normally, when taking out or storing the contents from the container 2 suspended on the frame 3, it is only necessary to slide the drawer out on the movable rail 7 of the frame 3.
If the container 2 is to be removed from the frame 3, the amount it can be pulled out will be insufficient. Therefore, if you pull the drawer door 12 even harder, being careful enough to close the main body door of the refrigerator, the frame 3
The movable rail 7 is strongly pulled through the stopper 11 and the second frame support roller 9, and the blocking protrusion 10 overcomes the main body side fixed roller 6, and the blocking is released. As a result, the movable rail 7 is further pulled out with respect to the fixed rail 5, and the container 2 is pulled out to the position shown by the imaginary line in FIG. 2, so that it can be easily attached to and removed from the frame 3.

As explained above, according to the rail pull-out device of the present invention, in normal use, the stopper 11 of the frame 3 comes into contact with the second frame support roller 9 and stops at a predetermined position, causing the refrigerator to suddenly move forward. There is no danger of falling. When you want to take out the container 2, pull the drawer door 12 strongly toward you, and the stopping convex part of the movable rail 7 will go over the fixed roller and the rail 7
is pulled out, so container 2 can be pulled out more,
The container can be taken out upwards.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a refrigerator according to an embodiment of the rail drawer of the present invention, and FIG. 2 is a cross-sectional view showing the configuration of the rail drawer according to an embodiment of the present invention when the lower drawer portion of the refrigerator is pulled out. Figure 3 is a front view of the rail drawer device according to an embodiment of the present invention installed in the lower drawer part of the refrigerator, with the container serving as the drawer part partially cut away and shown from the front of the refrigerator.
The figure is a perspective view showing an assembled state of main parts such as a movable rail, a fixed rail, and a fixed roller in a rail pull-out device according to an embodiment of the present invention. 1...Box body, 2...Container, 3...Frame, 4
...First frame support roller, 5...Fixed rail, 6...Fixed roller, 7...Movable rail, 7a
. . . lower flange portion, 9 . . . second frame support roller, 10 . Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims for Utility Model Registration] (1) A frame disposed on both sides of a drawer container that can be taken in and out of the box, a first frame support roller provided at the rear end of the frame, and a a fixed rail provided on the inner surface, a main body fixed roller provided near the front end of the fixed rail, and a first frame support roller that is slidably supported by the fixed rail and the main body fixed roller; a movable rail that guides the frame and slidably supports the frame; and a second frame support roller that is provided at the front end of the movable rail and slidably supports the frame, and the frame supports the second frame. A rail drawer characterized in that the movable rail includes a convex stopper integrally formed on the contact surface of the frame support roller, and the movable rail includes a stop protrusion integrally formed on the contact surface of the main body side fixed roller. Device. (2) Utility Model Registration The rail drawer device according to claim 1, wherein the drawer container is detachably suspended from the frame.