JP6659787B1 - Folding rack with positioning control - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding rack with a positioning control device which is compact and easy to store. A slide frame (2) is provided between two support frames (1), and a slide bush (3) is provided on the slide frame, and a connecting unit (4) facing each other is connected between the slide bush and the support frames on both sides. A positioning control device 6 of the positioning unit 62 for abutting the upper end of the slide bush is provided at the upper end and extends into the upper end. The lower end of the positioning unit of the positioning control device is abutted against the upper end of the slide bush by pulling up the slide frame and stacking the two support frames at the predetermined inner position to bring the two support frames closer to the inner position to the predetermined position. And the two support frames are completely overlapped and fixed inward. This allows the folded rack to stand upright and not easily fall. [Selection diagram] FIG.

Description

  The present invention relates to a multi-shelf folding rack, and in particular, the rack is positioned by a positioning control device after folding two support frames, and the folded rack does not extend outside the two support frames. The present invention relates to a folding rack that can be stored upright without support.

  Conventionally disclosed Taiwan Patent 551326, Taiwan Patent M302941, Taiwan Patent M348526, or Japanese Utility Model Registration No. 3146007 and Japan Utility Model Registration No. 3163332 are all multi-stage shelf folding racks, and each shelf board is placed in the middle. The main purpose is to fold the two support frames into a compact, easy to store, and to attach the casters to the lower ends of the two support frames to make the unfolded rack easy to move. .

  The toggle unit disclosed in the above-mentioned patent is usually provided so as to hold and position the slide bush, to deploy the shelf board, or to pull out the toggle unit, pull out the slide bush, and pull the intermediate frame. Is provided to bring the two support frames closer together by folding the shelves, but when the rack is folded, there is no device that can be positioned or fixed, that is, the intermediate frame can slide up and down Also, if the rack is stably stood and not tilted, the two support frames must be at an appropriate distance because the weight of the intermediate frame and the casters at the lower end of the support frame are not braked. If it is opened, does not approach completely, does not overlap or does not brake, and there is no stopping force, the intermediate Frame is out of shape by gravity, or slide into both sides of the support frame outer naturally with or spread, the entire rack that is also made to the deployed state, a problem to be solved.

  If the two support frames are completely overlapped, the intermediate frame will not easily deform, but the distance between the two support frames will be too short, and the rack will be too tall to balance the center of gravity, which will make it easier Due to the danger of not being able to stand and falling easily, such a completely folded rack should be stored in a narrow space rather than in a wide space without any partitions. That is, when the rack is pushed and moved, the two support frames can easily spread between the two support frames if the user does not hold them firmly because the two support frames cannot be positioned. Rack becomes difficult to move.

Republic of China Patent No. 551326 Republic of China Patent M302941 Republic of China Patent M348526 Utility Model Registration No. 3146007 Utility Model Registration No. 316332

The present invention solves the problems of the conventional folded rack described above, which has no positioning design and spreads out by itself, or cannot be stably stood after being completely folded. Therefore, at the upper end of the slide frame, a positioning control device for controlling the positioning between the two support frames is provided. The positioning control device is provided with a lower end of a positioning unit extending into the slide frame. but flexible stretchable, is exposed to the outside of the slide frame side, pulling the slide frame, when the overlapped two support frames, the lower end of the positioning unit as out against the upper end of the slide bush, slide frame The two support frames, which did not slide down and approached to a suitable distance, did not slide out or spread out. Providing stably folded positionable design rack for stand a click.

As a technical means for solving the problem of the present invention, a slide frame is provided between two support frames, a foldable shelf member is provided between the two support frames and the slide frame, and a slide bush is provided on the slide frame. , And a connecting unit facing between the slide bush and the support frame on each side is connected, and when the slide frame is pulled up, the two support frames and the shelf member are brought closer to each other and folded, and the upper end of the slide frame Is provided with a positioning control device for positioning the movement of the slide frame, and the positioning control device has a toggle unit mounted on the upper end of the slide frame, and extends into the slide frame where the toggle unit is mounted. The swing position by moving the toggle unit. Because the unit is provided, butt out portion at the lower end of the positioning unit, and a flexible unit for it out pushing the side surface of the slide frame is exposed opening for exposing the projecting out portion is provided, whereby , projecting out portion through the slide bush, and which are located so as out against the upper end of the slide bush.

In the above-mentioned technical means, of the toggle unit, through the place attached to the slide frame, the toggle unit provided so as to fix the positioning unit, the upper end of the parallel standing slide frame, the set one the rod bar A notch for entering the bottom and a fixed collar for abutting the rod bar are provided.

  Therefore, when the slide frame is moved upward by the positioning unit of the positioning control device of the present invention described above, the upper end thereof passes through the slide bush and abuts against the upper end of the slide bush, so that the slide frame does not move downward. Characterized in that the two overlapping supporting frames are positioned to make the folded rack stand more stably, or that the two supporting frames do not spread out when the rack is pushed and moved. .

FIG. 3 is a perspective view of the rack of the present invention. FIG. 3 is an exploded view of the vicinity of the rack positioning control device of the present invention. It is a side view of the rack of the present invention. FIG. 4 is a side cross-sectional view around the positioning control device of the present invention. FIG. 4 is a view showing a stable stand when the rack of the present invention is folded. FIG. 6 is a cross-sectional view around the positioning control device when the folded rack of FIG. 5 stands. FIG. 4 is a view when the rack of the present invention is completely folded. FIG. 8 is a cross-sectional view of another embodiment of the positioning unit in the folded rack positioning control device of FIG. 7.

  The present invention will be further described with reference to the drawings and embodiments as follows. As shown in FIGS. 1 to 4, the rack of the present invention is provided with slide frames 2 on both sides between two support frames 1, and slide bushes 3 are respectively attached to the slide frames 2. An opposing connection unit 4 is connected between the slide bush 3 and the support frames 1 on both sides of the slide bush 3. A plurality of shelf members 5 are provided, and each of the shelf members 5 includes two shelf plates 51 and 52 having both inner portions fixed to the slide frame 2, and outer portions of the shelf plates 51 and 52 on both sides. Is further provided to be fixed to the corresponding support frame 1, and by moving the slide frame 2 downward or upward, the two support frames The spread outwardly, the shelf plates 51 and 52 deployed flat, or causes approach the support frame 1 inward, folded shelves 51 and 52, is provided so as to cause Oriawa the rack or expansion.

A positioning control device 6 is further provided at each upper end of the slide frame 2, and the positioning control device 6 includes a toggle unit 61 attached to the upper end of the slide frame 2, and a rod bar 60 fixed to the slide frame 2, A toggle unit 61 is provided so as to connect the rod bar 60, and the rod bar 60 is further provided with a positioning unit 62. The positioning unit 62 extends downward into the slide frame 2, and is located at a lower end of the positioning unit. butt out portion 621 is provided, it has an exposed opening 21 in the side surface of the slide frame 2 corresponding to the projecting-out portion 621, and further the lower end of the positioning unit 62, abutted against the upper slide frame 2, flexible, outer A flexible unit 63 for projecting in the direction 61 and the positioning unit 62 swings around the rod bar 60, i.e., provided to the lower end of the positioning unit 62 swings outwardly, thereby, collision out 621 slightly from the exposure opening 21, slide frame 2 is exposed to the outside of, projecting out portion 621 is provided so as to be flexibly extensible into the sides of the exposure opening 21.

  The rod bar 60 enters the bottom of the notch 20 through the notch 20 at the upper end of the slide frame 2, and then the fixing collar 22 is fixedly attached to the upper end of the slide frame 2, and the rod bar 60 is fixed to the fixing collar. The rod bar 60 is provided so as to rotate so that the rod bar 60 can be attached to the slide frame 2 so as not to come off the notch portion 20 and to be attached to the slide frame 2.

As shown in FIG. 5 and FIG. 6, when the user pulls up the slide frames 2 on both sides of the rack, the support frames 1 on each side and each shelf board member 5 approach the inside and fold, and at the same time, the positioning control is performed. butt out portion 621 of the positioning unit 62 in the device 6, the folding of the slide bush 3, the closer, butt out portion 621 from through the slide bush 3, by being flexibly abutting the flexible unit 63, it is exposed , Comes into contact with the upper end of the slide bush 3, so that the slide frame 2 in the slide bush 3 cannot slide down, positioning is performed, and the two support frames 1 slide outward. Preset distance between two folded support frames 1 without spreading or spreading Provided so that it has, thereby, after the rack is folded, it is provided to stand stable, or be pushed, maintaining stability, be not or easily fall. In contrast, when the user moves up the toggle unit 61, and swing inwardly lower end of the positioning unit 62, projecting out portion 621 enters into the slide frame 2, a slide frame 2 is slid downwardly As a result, the two support frames 1 are spread outward, the shelf members are unfolded flat, and the racks are unfolded and used.

When the positioning units 62 of the positioning control device 6 are set to different lengths, the positions when the two support frames 1 are folded are changed. 7, as shown in FIG. 8, if the length of the positioning unit 62 is extended, the collision out portion 621 of the lower end abuts against the upper end of the slide bush 3 approaches is between the two support frames 1, approximately When they come together, the slide frame 2 does not slide down and the two support frames 1 approached are positioned, and when the folded rack is pushed and moved, the two support frames 1 are moved out. You don't have to worry about spreading.

1. Support frame 2. Slide frame 20. Notch 21. Exposure port 22. Fixed collar 3. Slide bush 4. Connecting unit 5. Shelf member 51, 52. Shelf board 6. Positioning control device 60. Rod bar 61. Toggle unit 62. Positioning unit 621. Butt out portion 63. Flexible unit

Claims (2)

A slide frame is provided between the two support frames, and a slide bush is provided on the slide frame,
A connecting unit is connected to face between the slide bush and each of the support frames on both sides,
There is a foldable shelf member between the two support frames and the slide frame,
When the slide frame is pulled up, the two support frames and the shelf member come closer to be folded,
At the upper end of the slide frame, a positioning control device for positioning the movement of the slide frame is provided,
In the positioning control device, a toggle unit is attached to an upper end of the slide frame, and a position where the toggle unit is attached is provided with a positioning unit that extends into the slide frame and swings by moving the toggle unit,
Wherein the collision out portion at the lower end of the positioning unit, and a flexible unit for out against the outside provided with those projecting out portion from the inside of the slide frame,
A side surface of the slide frame is exposed opening for exposing the projecting out portion is provided,
The collision out portion, when the operation of folding the two support frames, and the inner slide bush, at the position in contact with the upper end of the slide bush, outwardly from the inside of the slide frame through the exposure opening A folding rack with a positioning control device provided so as to protrude from the folding rack. A notch is provided at the upper end of the slide frame,
There is a rod bar provided so as to penetrate the toggle unit , where it is attached to the slide frame, enter the bottom of the cutout, and fix the positioning unit,
2. The folding rack according to claim 1, further comprising a fixing collar fixed to an upper end of the slide frame to prevent the rod bar from sliding out from above.