KR102025009B1 - Folding type moving rack for a square tray - Google Patents

Abstract

The present invention relates to a foldable moving rack for a rectangular tray which can be folded when not in use to improve space efficiency. The foldable moving rack for a rectangular tray comprises: a left rectangular frame having a rail and an insertion coupling unit; a right rectangular frame corresponding to the left rectangular frame; an upper bending bar coupled to the insertion coupling unit formed on both ends of the right and the left rectangular frame to connect the right and the left rectangular frame, and bent only downwards; a middle bending bar bent upwards or downwards; and a lower bending bar bent only upwards. The upper bending bar, the middle bending bar, and the lower bending bar have an H-shaped structure consisting of a center bar and a pair of a left and a right connection bar. One sides of the left and the right connection bar are coupled to be rotated by a T-shaped hinge coupling unit coupled to both ends of the center bar to be bent with respect to the center bar, and the other sides are coupled to be rotated by a straight hinge coupling unit coupled to the insertion coupling unit of the right or the left rectangular frame. The T-shaped hinge coupling unit and the straight hinge coupling unit allow bending only in 90 degrees. When the moving rack is not used, the moving rack can be stored in a folded state to greatly reduce storage space. The moving rack has relatively high mechanical strength in structure to be used for industrial purposes. Space efficiency can be relatively improved in an industrial field using the moving rack as a delivery means. The loading efficiency of the moving rack can be improved.

Description

Folding type moving rack for a square tray

The present invention relates to a moving rack used to move a plurality of rectangular trays by stacking a plurality of rectangular trays, and more particularly to a folding type moving rack that can be folded to increase space efficiency when not in use.

The moving rack is a moving means for moving in a state of receiving a rectangular tray in many industries, as shown in the drawing for explaining a moving rack for a general rectangular tray of FIG. 1, and a plurality of rectangular trays 1 may be stacked. Four casters 20 and the quadrangular tray 1 formed in the inner space to be coupled to the frame 10 and the lower portion of the frame 10 to enable the smooth movement of the inner space so as to be seated sliding It comprises a plurality of rails (30).

Such a moving rack can move many rectangular trays 1 at a time as shown in FIG. 1, and thus is widely used in the food production field for producing food in large quantities.

For example, in a franchise that sells donuts and bread, donuts and bread are produced at the factory, and donuts and bread are placed on a square tray (1) when the factory produces donuts and bread to stores throughout the country. It is stored in a moving rack and delivered.

In addition to the food field as described above, it is widely used as a means for moving a certain object stored in the rectangular tray 1 in a stored state in many fields.

Therefore, when a moving rack is used as a means of transportation in a food factory, a large amount of moving rack is used, and thus a space for storing a large amount of moving rack is required.

That is, when there are many moving racks waiting to be used, the space occupied by the moving racks waiting to be used in the factory increases, which causes a problem that the space efficiency of the factory falls.

Accordingly, there is a demand for a moving rack that can relatively increase the space efficiency of a place where the moving rack waiting to be used is stored.

Application number 10-2016-0138854 'folding type display stand' has been disclosed as a prior art for improving space efficiency.

The prior art relates to a folding type display stand that can be folded and stored left and right, and specifically, a pair of left and right side frames; A plurality of up and down segmented shelves each axially coupled to the left and right side frames; An interlocking bar having a fixing pin formed to simultaneously fold and unfold the vertical segment shelf; A lifting bundle to move up and down along the linkage bar; A pair of link bars axially connected between the elevating bundle and the lower segment of the elevating bundle; A rotary lever axially coupled to the rear of the elevating bundle; And a chuck coupled to the rear of the rotary lever to be hooked to the fixing pin of the interlocking bar, so that the chuck is easily formed or folded at a time and is narrowly formed when folded. It features a folding type display stand that is simpler and easier to store and transport.

The prior art as described above can be folded in the middle of the shelves of the shelves to reduce the width to reduce the volume when storing and transporting, but there is no configuration in the moving rack that acts as a connecting means like the shelves of the prior art. For industrial use, there is a problem of weak mechanical strength.

The present invention was made to solve the problems of the prior art as described above, and an object thereof is to provide a folding type moving rack that can fold a moving rack when not in use.

In addition, an object of the present invention is to provide a folding moving rack structurally high mechanical strength for industrial use.

Furthermore, an object of the present invention is to provide a folding type moving rack that can relatively increase the space efficiency of the factory in the industrial field using the moving rack as a delivery means.

Other objects of the present invention may be understood through the features of the present invention, more clearly understood through the embodiments of the present invention, and may be realized by means and combinations indicated in the claims.

The present invention has the following technical features to achieve the problem to be solved by the present invention as described above.

The folding tray for the rectangular tray of the present invention is made of a metal material, but two casters are coupled to the bottom side by side, and a plurality of rails are coupled side by side in the vertical direction in the right direction, and both ends of the upper end in the direction in which the rail is formed. A left rectangular frame having fitting portions formed at both ends and lower ends; A right rectangular frame in which a rail and a fitting coupling part are formed in a left direction in the same material and shape corresponding to the left rectangular frame; An upper refraction bar made of a metal material and coupled to a fitting coupling portion formed at both ends of the upper left and right rectangular frames to connect the left rectangular frame and the right rectangular frame and bend only downward; Suspension refracting bar made of a metal material, coupled to the engaging portion formed on both ends of the left rectangular frame and the right rectangular frame to connect the left rectangular frame and the right rectangular frame and refracted upward or downward; A lower refraction bar made of a metal material and coupled to the fitting coupling portions formed at both ends of the lower left and right square frames to connect the left and right rectangular frames and bend upward only; One side of the left / right connecting bar is coupled to both ends of the center bar such that the refracting bar, the middle refracting bar, and the lower refracting bar are “H” structures composed of a center bar and a pair of left / right connecting bars. Is rotatably fastened through the T-shaped hinge coupling portion, the other side is rotatably fastened through the straight hinge coupling portion coupled to the fitting coupling portion of the left rectangular frame or the right square frame, the T-shaped hinge coupling portion and the straight Hinge coupling allows the refraction only at an angle of 90 degrees;

In addition, the T-shaped hinge engaging portion of the folding-type moving rack for the rectangular tray of the present invention is inserted into the center bar is inserted into the center portion and the center hinge is formed in the center vertically integrated with the insertion portion having a through-hole on both sides Center bar coupling portion consisting of a portion; A connection bar coupling portion having a rotation piece corresponding to the rotation piece formed on both sides of the central hinge portion and an insertion portion inserted into and inserted into the left / right connection bar in a longitudinal direction; And hinge pins that are inserted into and coupled to the through holes in a state where the pivoting piece of the center bar coupling part and the pivoting piece of the connecting bar coupling part overlap each other. Rotating; it is characterized by technical features.

In addition, the straight hinge engaging portion of the folding-type moving rack for the rectangular tray of the present invention frame engaging portion formed in the longitudinal direction of the rotating piece having an insertion portion and a through hole inserted into the fitting coupling portion and fitted; A connecting bar coupling part having a rotation piece corresponding to the rotating piece formed on the frame coupling part and an insertion part inserted into and inserted into the left / right connecting bar in a longitudinal direction; And a hinge pin which is inserted into and coupled to the through hole in a state where the pivoting piece of the frame engaging portion and the pivoting piece of the connecting bar engaging portion overlap each other; and the connecting bar engaging portion fastened to the frame engaging portion rotates. It is technical feature.

In addition, the folding tray of the present invention for the folding tray is fastened so that one side is rotated to the left rectangular frame or the right rectangular frame, the other side is a safety post is formed with a fastening protrusion formed on the opposite rectangular frame; It is a technical feature to maintain the expanded or folded state at the time of expansion or folding.

In addition, the interrupting deflection bar of the folding type movable rack for the rectangular tray of the present invention is bent upward only, and the center hinge portion and the lower deflection of the T-shaped hinge coupling part of the interrupting deflection bar of the present invention are for the rectangular tray folding type moving rack. It is characterized in that it further comprises; an interlocking bar for connecting the central hinge portion of the T-shaped hinge coupling of the bar to be refracted together.

In addition, in the folding tray for the rectangular tray of the present invention, when the upper refracting bar is refracted downward and the stop refracting bar is refracted upward and folding is completed, the center bar of the upper deflection bar and the center deflection bar are mutually mutual. Interview; technical features.

In addition, the rail of the folding tray for the rectangular tray of the present invention, the anti-slip stopper is formed at one end of the rail to prevent the rectangular tray is pushed; characterized in that it further comprises a technical feature.

In addition, the folding tray for the rectangular tray of the present invention is the T-shaped hinge coupling portion or the straight hinge coupling portion, in order to prevent the shaking caused by the play in the hinge portion of the T-shaped hinge coupling portion or the straight hinge coupling portion, the hinge hinge portion of the T-shaped hinge coupling portion The anti-shake groove is formed in, the anti-shake pin is inserted into the anti-shake groove is rotated and fastened to the left / right connecting bar.

The present invention has the effect that can be stored in a folded state when not using the moving rack through the solution of the above problems can significantly reduce the storage space.

In addition, the moving rack according to the present invention has a relatively high mechanical strength effect to be used for industrial purposes.

Furthermore, the present invention has the effect of relatively increasing the space efficiency of the factory in the industrial field using the moving rack as a delivery means, and has the effect of increasing the loading efficiency of the moving rack recovered to the vehicle.

Other effects of the present invention may be understood through the features of the present invention, more clearly understood through the embodiments of the present invention, and may be exerted by means and combinations indicated in the claims.

1 is a view for explaining a moving rack for a general rectangular tray,
2 is a view for explaining the structure of the folding-type moving rack for a rectangular tray of the present invention;
3 is a view for explaining the refractive bar of the folding-type moving rack for the present invention rectangular tray,
Figure 4 is a view for explaining the refractive state of the top / middle / bottom refractive bar of the folding-type moving rack for the rectangular tray of the present invention,
5 is a view for explaining the T-shaped hinge coupling portion of the folding-type moving rack for the present invention rectangular tray,
Figure 6 is a view for explaining the linear hinge coupling of the folding moving rack for a rectangular tray of the present invention,
7 is a view for explaining the rotation state of the T-shaped hinge coupling portion and the straight hinge coupling portion of the folding-type moving rack for the rectangular tray of the present invention;
8 is a view for explaining the functional features of the folding moving rack for a rectangular tray of the present invention,
9 is a view for explaining a safety post of the folding type movable rack for a rectangular tray of the present invention;
10 is a view for explaining an interlocking bar of the folding type movable rack for a rectangular tray of the present invention;
11 is a view for explaining the movement of the interlocking bar of the folding-type moving rack for the present invention rectangular tray,
12 is a view for explaining the anti-roll stopper of the folding-type moving rack for the present invention rectangular tray,
Figure 13 is a view for explaining the anti-shake groove and anti-shake pin of the folding type movable rack for a rectangular tray of the present invention.

DETAILED DESCRIPTION OF THE INVENTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It is to be understood that the various embodiments of the invention are different but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention with respect to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims, along with the full scope of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

As shown in the drawings for explaining the structure of the folding tray of the present invention rectangular tray folding rack 100, Figure 2, the left rectangular frame 110, the right rectangular frame 120 , The upper refraction bar 130, the stop refraction bar 140, and the lower refraction bar 150 are included.

The left rectangular frame 110 is made of a metal material such as stainless or aluminum, and as shown in FIG. 2, two casters 111 are coupled side by side.

The caster 111 is a means for smooth movement of the folding type movable rack 100 for a rectangular tray according to the present invention.

On the other hand, a plurality of rails 112 are coupled side by side in the vertical direction as shown in FIG. 2 in the right direction, which is one side of the left rectangular frame 110.

The rail 112 serves to allow the rectangular tray to be inserted and seated together with the rail 122 formed on the right rectangular frame 120.

In addition, fitting couplings 113 are formed at both ends of the upper end, both ends of the interruption, and both ends of the lower end in the direction in which the rail 112 is formed.

That is, the fitting coupling portion 113 is a total of six is formed in the left rectangular frame (110).

The right rectangular frame 120 corresponds to the left rectangular frame 110 in the same structure and shape as the left rectangular frame 110.

At this time, the rail 122 formed in the right square frame 120 is formed in the left direction so as to face the rail 112 of the left square frame 110, the fitting coupling portion of the right square frame 120 ( 123 is also formed in the left direction to face the fitting coupling portion 113 of the left rectangular frame 110.

Rectangular tre according to the present invention by connecting the left rectangular frame 110 and the right rectangular frame 120 are fastened to the fitting coupling portions 113 and 123 of the left rectangular frame 110 and the right rectangular frame 120 as described above, respectively. As shown in FIG. 2, the upper deflection bar 130, the stop deflection bar 140, and the lower deflection bar 150 forming the used folding moving rack 100 have an H-shaped structure.

Referring to each of the deflection bar as shown in Figure 2, the upper deflection bar 130 is made of a metal material, the fitting coupling formed on both ends of the upper left rectangular frame 110 and the right rectangular frame 120 The left rectangular frame 110 and the right rectangular frame 120 are coupled to the parts 113 and 123, but have a coupling structure that is only refracted downward.

That is, as shown in the figure for explaining the refractive state of the top / middle / bottom refraction bar of the folding-type moving rack for the rectangular tray of the present invention, the top refracting bar 130 is refracted downward.

The stop refraction bar 140 is made of a metal material, the left square frame 110 is coupled to the fitting coupling portions 113, 123 formed at both ends of the left and right rectangular frame 110 and the right square frame 120, respectively. And the right square frame 120 and have a coupling structure that is bent upward or downward, as shown in FIG.

Finally, the lower refraction bar 150 is made of a metal material, the left square frame 110 is coupled to the fitting coupling portions 113, 123 formed on both ends of the lower right of the right square frame 120, the left rectangular frame Connecting the 110 and the right rectangular frame 120, as shown in FIG. 4, has a coupling structure that is only refracted upward.

The upper, middle, and lower deflection bars 130, 140, and 150 as shown in FIG. 3 illustrate the deflection bars of the folding-type moving rack for the rectangular tray of the present invention, as shown in the drawing, the center bar 131 and the center bar. It consists of a pair of left connecting bar 132 connecting the 131 and the left square frame 110 and a pair of right connecting bar 133 connecting the center bar 131 and the right square frame 120 'H 'Has a structure.

Accordingly, the upper, middle, and lower refractive bars 130, 140, and 150 are refracted by the left connecting bar 132 and the right connecting bar 133 based on the center bar 131.

At this time, the center bar 131, the left connection bar 132 and the right connection bar 133 is preferably made of the same metal material as the left rectangular frame 120.

On the other hand, the left / right connection bar 132, 133 is rotatably fastened through the T-shaped hinge coupling portion 200 is coupled to both ends of the center bar 131 for refraction, the other side is the left side It is rotatably fastened through the straight hinge coupling portion 300 coupled to the fitting coupling portions 113 and 123 of the square frame 110 or the right square frame 120, and the T-shaped hinge coupling portion 200 and the The straight hinge coupler 300 has a structure that allows refraction only at an angle of 90 degrees.

A preferred embodiment of the T-shaped hinge coupler 200 and the straight hinge coupler 300 will be described below.

The upper refraction bar 130, the stop refraction bar 140, and the lower refraction bar 150 having the structural features as described above are left rectangular frame 110 and right rectangular frame 120 as shown in FIGS. 2 to 3. It is coupled to the fitting coupling portion 113, 123 formed in the straight hinge coupling portion 300 is made to bend between the left rectangular frame 110 and the right rectangular frame 120, the left rectangular frame 110 and the right rectangular The width between the frames 120 may be widened or narrowed.

That is, the folding type movable rack 100 for the rectangular tray according to the present invention is folded by the upper deflection bar 130, the stop deflection bar 140, and the lower deflection bar 150 as shown in FIGS. 2 to 3. It is characterized by.

Accordingly, the folding type movable rack 100 for the rectangular tray according to the present invention has a volume of about 1/3 when folding as illustrated in the drawings for explaining the functional features of the folding type movable rack for the rectangular tray of the present invention. It can be reduced by about 300%.

That is, as shown in FIG. 8, the volume occupying the space of the expanded rectangular tray folding movable rack 100 and the three folding rectangular movable racks 100-1, 2, 3 The volume occupying space is about the same.

Hereinafter, the T-shaped hinge coupler 200 and the straight hinge coupler 300 will be described in detail with reference to preferred embodiments.

5 is a view for explaining the T-shaped hinge coupling portion of the folding-type moving rack for the rectangular tray of the present invention, Figure 6 is a view for explaining a straight hinge coupling portion of the folding-type moving rack for the rectangular tray, Figure 7 is the present invention A diagram for describing a state of refraction of the upper, middle and lower refraction bars of the folding type movable rack for a rectangular tray.

As shown in FIG. 5, the T-shaped hinge coupling part 200 includes a center bar coupling part 210, a connection bar coupling part 220, and a hinge pin 230.

The center bar coupling portion 210 is inserted into the center bar 131 is inserted into the insertion portion 211 and the rotation piece having a through hole on both sides integrally in the center perpendicular to the insertion portion 211 1) is formed of a central hinge portion 212 formed.

On the other hand, the connection bar coupling portion 220 is coupled to both sides of the center bar coupling portion 210 as shown in FIG.

The connecting bar coupling portion 220 is inserted into the rotating piece 221 and the left / right connecting bars 132 and 133 corresponding to the rotating piece 212-1 formed on both sides of the central hinge portion 212. Insertion portion 222 to be fitted is formed in the longitudinal direction.

Accordingly, the pivoting piece 212-1 of the center bar coupling part 210 and the pivoting piece 221 of the connection bar coupling part 220 are hinged to the through hole in a state as shown in FIG. 5. As the pin 230 is inserted and fastened, as shown in FIG. 7, the connecting bar coupling parts 220 fastened at both rotating pieces 212-1 of the central hinge part 212 rotate.

The center bar coupling portion 210 and the connection bar coupling portion 220 of the T-shaped hinge coupling portion 200 may be made of a synthetic resin material.

As shown in FIG. 6, the straight hinge coupling part 300 includes a frame coupling part 310, a connection bar coupling part 320, and a hinge pin 330.

As shown in FIG. 6, the frame coupling part 310 is inserted into the fitting coupling parts 113 and 123 to be inserted into the fitting part 311 and the pivoting piece 312 having a through hole in a longitudinal direction. Is formed.

The connecting bar coupling part 320 is inserted into and inserted into the rotating piece 322 and the left / right connecting bars 132 and 133 corresponding to the rotating piece 312 formed in the frame engaging part 310. The portion 321 is formed in the longitudinal direction.

Meanwhile, as illustrated in FIG. 5, the T-shaped hinge coupling part 200 is inserted into the center bar 131 and inserted into the center bar 131, and is perpendicular to the insertion part 211. A center bar engaging portion 210 formed of a central hinge portion 212 integrally formed with a pivoting piece 212-1 having through holes on both sides thereof, and a pivoting piece 212-1 formed on both sides of the central hinge portion 212. Rotating piece 221 of the connecting bar 220 and the center hinge portion 212 formed in the longitudinal direction of the rotating piece 221 and the insertion portion 222 inserted into the left / right connecting bar and fitted to the coupling bar (212) 212-1) and a hinge pin 230 which is inserted into and coupled to the through hole in a state where the rotation piece 221 of the connection bar coupling portion 220 overlaps, and the rotation piece of the central hinge portion 212. 212-1 and the pivoting piece 221 of the connecting bar coupling portion 220 are curved by a 90 degree angle with respect to the through hole. The Figure 7 the said central hinge connection bar coupling portion 220 fastened to both sides of each pivoting piece 212-1 of the portion 212 is rotated only 90 ° angle as shown in Fig.

In addition, the straight hinge coupling portion 300 is also shown in Figure 6, the insertion piece 311 is inserted into the fitting coupling portion 113 and the rotating piece 312 having a through hole length The frame engaging portion 310 formed in the direction and the rotating piece 322 corresponding to the rotating piece 312 formed in the frame engaging portion 310 and the insertion portion 321 inserted into the left and right connecting bar are fitted The connecting bar coupling part 320 formed in the longitudinal direction and the rotating piece 312 of the frame coupling part 310 and the rotating piece 322 of the connecting bar coupling part 320 are inserted into the through-holes in a state where they overlap. The hinge pin 330 is fastened to each other, and the rotating piece 312 of the frame engaging portion 310 and the rotating piece 322 of the connecting bar engaging portion 320 have a 90 degree angle with respect to the through hole. Connection bar fastened to the rotating piece 312 of the frame engaging portion 310 in a curved shape Sum section 320 rotates only 90 degrees.

Hereinafter, another embodiment of the present invention will be described.

9 is a view for explaining the safety post of the folding type movable rack for a rectangular tray of the present invention.

As shown in FIG. 9, the folding type movable rack 100 for the present invention tray is fastened so that one side is rotated to the left rectangular frame 110 or the right rectangular frame 120, and the other side is connected to the opposite rectangular frame. Further comprising a safety post 160 is formed with a groove 161 is fastened to the formed fastening protrusions (162, 163) is characterized in that to maintain the expanded or folded state at the time of expansion or folding.

That is, the safety post 160 is in the form of a rod having a predetermined length, one side is rotatably coupled as shown in Figure 5, the other side is formed with a groove 161 fastening protrusions (162, 162) The groove 161 is fitted into the fixed).

Accordingly, the fastening protrusions 162 and 163 form the fastening protrusion 163 at a position where the state can be maintained when the fastening protrusions 162 and 163 are folded in accordance with the length of the safety post 160, and can maintain the expanded state even when the fastening protrusions 162 and 163 are expanded. The fastening protrusion 162 is formed at a position corresponding to the position of the groove 161 formed in the safety post 160 in the expanded state.

The safety post 160 and the fastening protrusions 162 and 163 may be formed at various positions capable of maintaining a folded state and an expanded state in addition to the shape and position illustrated in FIG. 9.

In addition, the present invention further includes an interlocking bar 170, as shown in the figure for explaining the interlocking bar of the folding-type moving rack for the rectangular tray of the present invention.

As shown in FIG. 10, the interlocking bar 170 serves to connect the stop refraction bar 140 and the lower refraction bar 150 to be interlocked together.

To this end, the stop refraction bar 140 is refracted only upward as shown in FIG. 10, and the center hinge part 212-C of the T-shaped hinge coupling part 200-C of the stop refraction bar 140 is disposed. ) And the central hinge portion 212-L of the T-shaped hinge coupling portion 200-L of the lower refraction bar 150 to be refracted together.

Such an interlocking bar 170 is a diagram for explaining the interlocking bar movement of the folding type movable rack for the rectangular tray of FIG. 11 according to the present invention by allowing the interfering refracting bar 140 and the lower refracting bar 150 to be interlocked upward. As shown in the drawing, it is a means for allowing the folding and expansion to be performed more smoothly.

On the other hand, in the folding tray of the present invention rectangular tray 100, as shown in FIG. 11, the upper deflection bar 130 is refracted downward, the interrupted deflection bar 140 is refracted upward and folded When this is completed, it is preferable that the center bar 131 -H of the upper deflection bar 130 and the center bar 141 -C of the stop refraction bar 140 interview each other.

 This is to increase the mechanical strength in the folding type movable rack 100 for the rectangular tray of the present invention is folded due to the warp due to the gap between the refracted upper deflection bar 130 and the stop deflection bar 140 Or shaking can be prevented.

The folding type movable rack 100 for the rectangular tray of the present invention is shown in FIG. 12 for explaining the anti-rolling stopper of the folding type movable rack for the rectangular tray of the present invention, the rectangular trays mounted on the rails 112 and 122. In order to prevent (1) from being pushed further comprises a rolling prevention stopper 180 formed at one end of the rail (112, 122).

That is, the anti-roll stopper 170 is formed in the vertical direction of the rails 112 and 122 at one end of the rails 112 and 122 as shown in FIG. 12 to limit the movement of the rectangular tray 1. Play a role.

This prevents tipping of the rectangular tray 1 due to movement in a state where a plurality of rectangular trays 1 are seated in the folding-type moving rack 100 for the rectangular tray of the present invention.

In the present invention, the folding type movable rack 100 for the rectangular tray is shown in FIG. 13 to illustrate the anti-shake groove and the anti-shake pin of the folding type movable rack for the rectangular tray, wherein the T-shaped hinge coupling part ( 200) or the T-shaped hinge coupling portion 200 or the straight hinge coupling portion 300 in order to prevent shaking caused by play in the hinge portion of the linear hinge coupling portion 300 is shown in FIG. Shake prevention groove 410 as shown is formed.

On the other hand, the anti-shake groove 410 is inserted into the T-shaped hinge coupling portion 200 or the straight hinge coupling portion 300 further includes an anti-shake pin 420 to prevent the hinge portion from shaking.

As shown in FIG. 13, the anti-shake pin 420 is inserted into or separated from the anti-shake groove 410 while being rotated by being fastened to the left / right connecting bars 132 and 133.

As shown in FIG. 13, when the anti-shake pin 420 is rotated and inserted into the anti-shake groove 410, slight shaking may be prevented due to the clearance provided for the hinge portion. .

The present invention has been described above based on the preferred embodiments, but the technical idea of the present invention is not limited thereto, and modifications or changes can be made within the scope of the claims. It will be apparent to those skilled in the art, and such modifications and variations will belong to the appended claims.

1: square tray
10: frame
20: caster
30: rail
100: folding type moving rack for square frame of the present invention
110: left square frame
112: rail
113: fitting coupling
120: right square frame
122: rail
123: fitting portion
130: upper refraction bar
131: center bar
132: left connecting bar
133: right connecting bar
140: suspended refractive bar
150: lower refraction bar
160: safety post
170: linkage bar
180: anti-stop stopper
200: T-shaped hinge coupling portion
210: center bar coupling portion
211: insertion unit
212 center hinge portion
220: connecting bar connecting portion
221: Meeting
222: insertion unit
230: hinge pin
300: straight hinge coupling portion
310: frame joint portion
320: connecting bar connecting portion
321: insertion unit
322: Meeting
330: hinge pin
410: Anti Shake Groove
420: anti-shake pin

Claims (8)

It is made of a metal material, the two casters are coupled to the bottom side by side and a plurality of rails are coupled side by side in the vertical direction in the right direction, the left side of the coupling portion is formed on both ends of the top, both ends and bottom in the direction the rail is formed Square frame;
A right rectangular frame in which a rail and a fitting coupling part are formed in a left direction in the same material and shape corresponding to the left rectangular frame;
An upper refraction bar made of a metal material and coupled to a fitting coupling portion formed at both ends of the upper left and right rectangular frames to connect the left rectangular frame and the right rectangular frame and bend only downward;
Suspension refracting bar made of a metal material, coupled to the engaging portion formed on both ends of the left rectangular frame and the right rectangular frame to connect the left rectangular frame and the right rectangular frame and refracted upward or downward;
A lower refraction bar made of a metal material and coupled to a fitting coupling portion formed at both ends of the lower left and right square frames to connect the left and right rectangular frames and bend upward only;
The upper refraction bar, the stop refraction bar and the lower refraction bar is a 'H' structure consisting of a center bar and a pair of left and right connection bars so that one side of the left and right connection bar is refracted based on the center bar at both ends of the center bar. Is rotatably fastened through the T-shaped hinge coupling portion 200 to be coupled to, the other side is rotatably fastened through the straight hinge coupling portion 300 to be coupled to the fitting coupling of the left rectangular frame or the right square frame. ,
The T-shape hinge coupling portion 200 is inserted into the center bar and inserted into the insertion portion 211 and the rotational piece (212-1) having a through hole on both sides integrally in the center perpendicular to the insertion portion 211 A center bar coupling portion 210 formed of the formed central hinge portion 212; Connecting bar formed in the longitudinal direction of the rotating piece 221 corresponding to the rotating piece (212-1) formed on both sides of the center hinge portion 212 and the insertion portion 222 inserted into the left and right connecting bar is fitted Coupling portion 220; And a hinge pin 230 inserted into the through hole and fastened in a state where the pivoting piece 212-1 of the central hinge part 212 and the pivoting piece 221 of the connecting bar coupling part 220 overlap each other. The rotating piece 212-1 of the central hinge portion 212 and the rotating piece 221 of the connecting bar coupling portion 220 are curved at a 90-degree angle with respect to the through hole. The connecting bar engaging portions 220 respectively fastened to both rotating pieces 212-1 of the hinge portion 212 rotate only at an angle of 90 degrees,
The straight hinge coupling part 300 includes a frame coupling part 310 in which a rotation piece 312 having a through hole and an insertion part 311 inserted into and fitted to the fitting coupling part is formed in a longitudinal direction; Connecting bar coupling portion 320 in which the rotating piece 322 corresponding to the rotating piece 312 formed in the frame coupling portion 310 and the insertion portion 321 inserted into and inserted into the left / right connecting bar are longitudinally formed. ); And a hinge pin 330 inserted and fastened into the through hole in a state where the pivoting piece 312 of the frame engaging part 310 and the pivoting piece 322 of the connecting bar engaging part 320 overlap with each other. The rotating piece 312 of the frame engaging part 310 and the rotating piece 322 of the connecting bar engaging part 320 have a curved shape by 90 degrees with respect to the through hole. Connecting bar coupling portion 320 fastened to the rotating piece 312 of the) rotates only at an angle of 90 degrees,
Folding the upper refraction bar downward, the stop refraction bar is refracted upward, and the folding is completed, the center bar of the upper refraction bar and the center bar of the stop refraction bar are mutually interviewed; Type moving rack. delete delete The method of claim 1,
One side is fastened so as to be rotated to the left rectangular frame or the right rectangular frame, the other side is a safety post formed with a groove fastened to the fastening protrusion formed on the opposite rectangular frame; further comprising an expanded or folded state at the time of folding or folding Folding type folding rack for rectangular trays, characterized in that the holding. The method of claim 1,
The stop refraction bar is refracted only upwards,
And an interlocking bar for connecting the central hinge portion of the T-shaped hinge coupling portion of the recessed refraction bar and the central hinge portion of the T-shaped hinge coupling portion of the lower refraction bar to be refracted together. Rack. delete The method of claim 1, wherein the rail is
The folding tray of claim 2, characterized in that it further comprises a; anti-stop stopper formed at one end of the rail to prevent the rectangular tray is pushed. The method of claim 1,
In order to prevent shaking caused by play in the hinge portion of the T-shaped hinge coupling portion or the straight hinge coupling portion, the T-shaped hinge coupling portion or the straight hinge coupling portion is formed in the hinge portion;
The folding type movable rack for a rectangular tray, further comprising a; anti-shake pins which are fastened to the left / right connecting bars to rotate and are inserted into the anti-shake grooves.

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