Patent Publication Number: US-8534470-B1

Title: Disassemblable hanging cart for folding chairs

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates generally to a hanging cart for carrying and storing folding chairs, and in particular to a hanging cart for carrying and storing multiple folding chairs that is easy to assemble and disassemble. 
     2. The Prior Arts 
     Conventionally, manufacturers would stack folding chairs in piles and pack them in large corrugated cartons for transportation. However, after the folding chairs are taken out of the cartons and used, it is hard to find a space efficient and cost efficient way to move or store the folding chairs. Usually, dollies or carts are used for carrying or storing the folding chairs. The folding chairs are stacked on the dolly horizontally. However, the chairs are easily fallen out of the dolly while being moved from place to place. A stacking cart used for carrying or storing folding chairs includes a chassis and holding handles configured at two opposite sides of the chassis. Generally, folding chairs can be arranged in two ways, vertical way or horizontal way, on the stacking cart. According to the vertical way, a first folding chair is leaned upon one of the holding handles at first, and then a second folding chair is leaned upon the first folding chair, and then a third folding chair is leaned upon the second folding chair, and so on until a last folding chair is leaned upon another holding handle. The folding chairs accommodated on the stacking cart are stably held between the two holding handles by pressing to each other. The horizontal way is to place the folding chairs horizontally on the chassis and pile them up. The stacking cart can accommodate one pile or several piles of the folding chairs. If the chassis has a large area, the stacking cart can usually carry a lot of folding chairs. 
     However, no matter which way to accommodate the folding chairs, the conventional stacking cart does not have fence bars provided at lateral sides of the chassis for securing the folding chairs carried thereon. When the stacking cart is pushed to move on a bumpy floor, the folding chairs may fall off from the stacking cart down to the floor due to vibration. Although the conventional stacking cart can carry and store a lot of the folding chairs, it has to be carefully handled to prevent the folding chairs from falling off from the stacking cart while moving. Further, the chassis and the holding handles are usually welded together. When the stacking carts are transported from the manufactures to the retailers or carried from the retailers to the users, or when they are not in use, the cart cannot be disassembled. The stacking carts would occupy too much space and therefore it is inconvenient for delivery or storage. 
     Referring to  FIG. 9 , U.S. Pat. No. Des. 182,483 discloses another type of hanging cart for carrying and storing folding chairs. The hanging cart includes a chassis  91 , two standing poles  92 , a plurality of reinforcement sets  93  and two hanging racks  94 . The chassis  91  includes a plurality of caster sets  915  disposed at the bottom of the chassis  91  for providing a stable support and moving function. The two standing poles  92  are vertically and symmetrically erected at opposite sides of the chassis. The two hanging racks  94  are mounted between the two standing poles  92  and located at different heights. The reinforcement sets  93  are disposed between the upper and lower hanging racks  94  to form a triangular truss structure and between the lower hanging rack  94  and the two standing poles  92 . Thus, the reinforcement sets  93  are provided to enhance the strength of the hanging cart. Each of the hanging rack  94  includes a cross beam  941  and a plurality of hanging bars  942 . Each of the cross beam  941  has two ends connected to the two standing poles  92 . The hanging bars  942  perpendicularly and horizontally cross the cross beam  941 , thereby connecting the hanging bars  942  with the cross beam  941 . Both sides of the hanging bars  942  are adapted for hanging the folding chairs. Because the hanging bars are usually made of metal tubes, both ends of each hanging bars  942  are provided with enlarged heads  943  to protect the user from being injured by the ends of the hanging tubes. However, the folding chairs are easily fallen off from the horizontal hanging bars  942 . Another type of improved hanging cart (not shown in drawing) has V-shaped hanging bars which incline upward from the cross beam. 
     Because the folding chairs are heavy and the hanging cart has to carry the folding chairs to move from place to place, the hanging cart for carrying and storing folding chairs needs to be built sturdily. Thus, the components of the conventional hanging cart for folding chairs are usually connected by welding; especially the truss structure of the reinforcement sets  93  and the horizontal or V-shaped hanging bars. When the hanging carts are transported from the manufactures to the retailers or delivered from the retailers to the users, or when they are not in use, the welded hanging carts can not be disassembled. The hanging carts would occupy too much space and therefore it is inconvenient to deliver or store. Moreover, the hanging cart having the horizontal hanging bars has a disadvantage, which the folding chairs are easily fallen off from the hanging cart. The hanging cart having the tilted hanging bars is difficult to manufacture, which increases the manufacturing cost. 
     SUMMARY OF THE INVENTION 
     A primary objective of the present invention is to provide a hanging cart for folding chairs for overcoming the disadvantage of the conventional designs that the folding chairs are easily fallen out of the cart, so that the folding chairs won&#39;t be damaged and staff won&#39;t be injured by fallen folding chairs. 
     Another objective of the present invention is to provide a disassemblable hanging cart for folding chairs that is easy to assemble and disassemble. Thus, when the hanging cart is not in use, the hanging cart can be disassembled to make it easy to store. 
     In order to achieve the objectives mentioned above, the present invention provides a disassemblable hanging cart for carrying and storing folding chairs. The disassemblable hanging cart includes a chassis, two standing poles, two reinforcement sets, and a plurality of hanging racks, bolts and pad sets. The chassis includes a plurality of caster sets distributed in different positions of the chassis for providing a stable support for the disassemblable folding chair hanging cart. The two standing poles are vertically and symmetrically erected on opposite positions of the chassis. Each of the two standing poles is configured with a plurality pairs of assembly portions corresponding to each other. The assembly portions of each standing pole are configured at different heights and positions. Each reinforcement set is provided between one of the two standing poles and the chassis for reinforcing the connection strength therebetween. Each hanging rack includes a cross beam and a plurality of hanging bars. Each cross beam has two opposite ends. The hanging bars of the hanging rack are perpendicularly and horizontally crossover the cross beam. The hanging bar and the cross beam include vertical through holes aligned to each other and allowing the bolt to be inserted into the vertical holes, thereby connecting the hanging bar with the cross beam. The opposite ends of each cross beam are correspondingly assembled with the assembly portions of the standing poles, so that the cross beams are assembled to the standing poles at different heights. Each of the pad sets is mounted to at least one of the hanging bars. When the folding chairs are hung on the hanging cart, the folding chairs are rest on the covering pads. 
     Both sides of the hanging bars are adapted for hanging up folding chairs. In operation, according to the size of the folding chairs to be hung, two or three immediately adjacent hanging bars are used for hanging one folding chair. The pad sets may be replaced according to the sizes of the folding chairs. When the folding chairs are hung on two immediately adjacent hanging bars, the pad set that is mounted to two hanging bars is used. When the folding chairs are hung on three immediately adjacent hanging bars, the pad set that is mounted to three hanging bars is used. In such a way, the disassemblable folding chair hanging cart can be used for carrying and storing a plurality of folding chairs in different sizes at the same time. 
     According to an aspect of the present invention, every part of the disassemblable hanging cart for folding chairs is adapted to be assembled and disassembled conveniently. Therefore, when the disassemblable hanging cart for folding chairs is going to be stored, it can be disassembled into independent parts, which are convenient for storage and delivery. When the disassemblable hanging cart for folding chairs is going to be used again, it can be reassembled conveniently. 
     According to a further aspect of the present invention, the friction forces between the folding chairs and the pad sets are larger than that between the folding chairs and the hanging bars. Therefore, the hanging cart for carrying and storing folding chairs according to the present invention can prevent the folding chairs from falling off from the hanging rack. Moreover, protective caps having extruded edges are provided at both ends of each hanging bar for interfering with the folding chair hanging thereon so as to prevent the folding chair from falling off therefrom. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present invention will be apparent to those skilled in the art by reading the following detailed description of preferred embodiments thereof, with reference to the attached drawings, in which: 
         FIG. 1  is an exploded view showing a chassis of a hanging cart for carrying and storing folding chairs according to a first embodiment of the present invention; 
         FIG. 2  is an exploded view showing the chassis and standing poles according to the first embodiment of the present invention; 
         FIG. 3  is an exploded view showing the chassis, the standing poles and reinforcement sets according to the first embodiment of the present invention; 
         FIG. 4A  is an exploded view showing a cross beam and a plurality of hanging bars of a hanging rack according to the first embodiment of the present invention; 
         FIG. 4B  is an exploded view showing the cross beam, the hanging bars and a plurality of pad sets according to the first embodiment of the present invention; 
         FIG. 4C  is a cross sectional view showing the hanging bar being secured to the cross beam by a screw bolt according to the first embodiment of the present invention; 
         FIG. 5  is an exploded view showing the hanging cart for carrying and storing folding chairs according to the first embodiment of the present invention; 
         FIG. 6  is a perspective view showing the hanging cart for carrying and storing folding chairs according to the first embodiment of the present invention; 
         FIG. 7  is a front view showing the operation status of the disassemblable hanging cart for carrying and storing folding chairs, in which a plurality of folding chairs are accommodated on the disassemblable hanging cart; and 
         FIG. 8  is a side view showing the disassemblable hanging cart for carrying and storing folding chairs of  FIG. 7 ; and 
         FIG. 9  is a perspective view showing a conventional hanging cart for carrying and storing folding chairs. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawing illustrates embodiments of the invention and, together with the description, serves to explain the principles of the invention. 
       FIG. 6  illustrates a disassemblable hanging cart for carrying and storing folding chairs according to a first embodiment of the present invention. Referring to  FIG. 6 , the disassemblable hanging cart for carrying and storing folding chairs is mainly constituted of a plurality of stainless steel tube units, and generally includes a chassis  1 , two standing poles  2 , two reinforcement sets  3 , a plurality of hanging racks  4 , a plurality of caster sets  6  and a plurality of pad sets  7 . 
       FIGS. 1 to 5  illustrate a step by step procedure of assembling the disassemblable hanging cart for carrying and storing folding chairs. All of the parts are designed for being assembled together for carrying or storing a plurality of folding chairs without specifically restricting the specific shapes or quantity of the tube units of each part. 
       FIG. 1  is an exploded view showing the connection of the chassis  1  according to the first embodiment of the present invention. Referring to  FIG. 1 , the chassis  1  includes a first primary rod  11  and two second primary rods  12 . Preferably, the first primary rod  11  and the second primary rods  12  are made of structural tubing, such as square tubes, rectangular tubes or round tubes.  FIG. 1  shows the first primary rod  11  and the second primary rods  12  are made of square tubes. The first primary rod  11  is located between the two second primary rods  12 , thus configuring an “I” shaped architecture of the chassis  1 . Both end sides of the first primary rod  11  are secured to the second primary rods  12  by fastener units  5 , respectively. According to an aspect of the embodiment, the fastener unit  5  includes two side wing plates  51 , a rectangular plate member  52 , and two screw sets  53 . The first primary rod  11  has two opposite end sides, and each of the two opposite end sides of the first primary rod  11  is connected to one of the two second primary rod  12  by the fastener unit  5 . The two side wing plates  51  of the fastener unit  5  are perpendicularly welded to the end side of the first primary rod  11 . The side wing plate  51  is configured with two through holes  511 . Corresponding to the through holes  511  of the two side wing plates  51 , the second primary rod  12  to be connected to the end side of the first primary rod  11  is also configured with two through holes  121 . Preferably, the inner walls of the through holes  121  are made to configure inner threads. Further, the rectangular plate member  52  is configured with two through holes  521  respectively corresponding to the through holes  511  of the two side wing plates  51 . Each of the screw sets  53  includes a threaded bolt and a threaded nut. The threaded bolts of the screw sets  53  are adapted for sequentially passing through the through holes  511  of the side wing plates  51 , passing through the through holes  121  while matching with the inner threads configured at the inner walls of the through holes  121 , and then passing through the through holes  521  of the rectangular plate members  52 , and finally being engaged with the threaded nuts of the screw sets  53 . In such a way, the fastener units  5  are used to secure the two second primary rods  12  to the two side ends of the first primary rod  11 , thus configuring the “I” structure of the chassis  1 . 
     In accordance with the first preferred embodiment of the present invention, both ends of each second primary rod  12  are provided with protective pads  123 . The protective pads  123  are made of elastic or flexible materials, such as rubber and plastic. The protective pads  123  are adapted for protecting the user from being injured by the rigid end sides of the second primary rods  12 . Further, the surface of each protective pad  123  is preferably configured with a protruded pattern for providing further protection to the protective pad  123  itself. 
     Further, the caster sets  6  are preferred to be swivel caster sets disposed at different positions of the chassis  1  for providing a stable support for the disassemblable hanging cart for folding chairs. In addition to a wheel, each caster set  6  includes at least one arm  61 , a swivel-axle  62 , a round hollow tube  63 , and a gasket  64 . The arm  61  is adapted for holding the wheel in place, and the swivel-axle  62  has a through hole  621  transversely configured through the swivel-axle  62 . The round hollow tube  63  has a diameter slightly greater than that of the swivel-axle  62  and is erectly positioned inside the end side of the second primary rod  12  for receiving the swivel-axle  62  therein. As shown in  FIG. 1 , both of an upper surface and a bottom surface of the second primary rod  12  are configured with openings corresponding to the ends of the round hollow tube  63 . The round hollow tube  63  is positioned such that the two ends of the round hollow tube  63  are aligned with the two openings of the second primary rod  12  at the upper surface and the bottom surface. A diameter of the openings is smaller than the diameter of the round hollow tube  63  and is slightly greater than the diameter of the swivel-axle  62 . 
     Therefore, when assembling the caster set  6  to the second primary rod  12 , the gasket  64  is sheathed over the swivel-axle  62 . Then, the swivel-axle  62  is inserted into the round hollow tube  63  from the opening at the bottom surface of the second primary rod  12 . Then, a threaded bolt  65  is passed from the second primary rod  12 , through a side wall of the round hollow tube  63 , and the through hole  621  of the swivel-axle  62  to the other side of the primary rod  12 , and a corresponding threaded nut is used to engage the threaded bolt  65 . 
       FIG. 2  is an exploded view showing the connection of the chassis  1  and standing poles  2  according to the first embodiment of the present invention. Preferably, the standing poles  2  are made of structural tubing, such as square tubes, rectangular tubes or round tubes. As shown in  FIG. 2 , the standing poles  2  are made of square tubes. The standing poles  2  are uprightly secured to the chassis  1  and perpendicular to the first primary rod  11  and the second primary rods  12 . Specifically, each standing pole  2  is secured to a corresponding second primary rod  12  by the fastener unit  5  as shown in  FIG. 2 . According to an aspect of the embodiment, the fastener unit  5  includes two side wing plates  51 , a rectangular plate member  52 , and two screw sets  53 . Each of the standing poles  2  has a bottom side and a top side. The two side wing plates  51  of the fastener unit  5  are perpendicularly welded to a bottom side of the standing pole  2 . Each of the two side wing plates  51  is configured with a through hole  511 . Corresponding to the through holes  511  of the two side wing plates  51 , the second primary rod  12  to be connected to the bottom side of the standing pole  2  is also configured with two through holes  121 . Preferably, the inner walls of the through holes  121  are made to configure inner threads thereby. Further, the rectangular plate member  52  is configured with two through holes  521  respectively corresponding to the through holes  511  of the two side wing plates  51 . Each of the screw sets  53  includes a threaded bolt and a threaded nut. The threaded bolts of the screw sets  53  are adapted for sequentially passing through the through holes  511  of the side wing plates  51 , passing through the through holes  121  while matching with the inner threads configured at the inner walls of the through holes  121 , and then passing through the through holes  521  of the rectangular plate members  52 , and finally being locked with the threaded nuts of the screw sets  53 . In such a way, the two standing poles  2  are symmetrically assembled onto the chassis  1 . 
     In accordance with the first preferred embodiment of the present invention, the top sides of the standing poles  2  are provided with protective pads  23 . The protective pads  23  are made of elastic or flexible materials, such as rubber and plastic. The protective pads  23  are adapted for protecting the user from being injured by the rigid top sides of the standing poles  2 . Further, the surface of each protective pad  23  is preferably configured with a protruded pattern for providing further protection to the protective pad  23  itself. 
       FIG. 3  is an exploded view showing the connection of the standing poles  2  and the reinforcement sets  3  according to the first embodiment of the present invention. Referring to  FIG. 3 , each of the reinforcement sets  3  includes two identical reinforcement rods  31 . Each of the reinforcement sets  3  is connected between the standing pole  2  and the second primary rod  12  for reinforcing the strength of the connection between the standing pole  2  and the second primary rod  12 . Specifically, the two reinforcement rods  31  of the reinforcement set  3  are symmetrically distributed at both sides of the standing pole  2  for connecting with two opposite sides of the second primary rod  12 . Generally, the two reinforcement rods  31  of the reinforcement set  3  obliquely pull the standing pole  2  toward two opposite sides of the second primary rod  12 , thus providing a reinforcement of the strength of the connection therebetween. 
     As shown in  FIG. 3 , the fastener unit  5  is provided for fastening an upper end of each of the two reinforcement rods  31  to one side surface of the standing pole  2 , and another fastener unit  5  is provided for fastening a bottom end of the reinforcement rod  31  to the upper surface of the second primary rod  12 . With respect to the fastener unit  5  fastening the upper end of the reinforcement rod  31  to the standing pole  2 , it includes at least one side wing plate  51  welded to the upper end of the reinforcement rod  31  and parallel with the side surface of the standing pole  2 . The at least one side wing plate  51  is configured with at least one through hole  511 . At a corresponding position of the standing pole  2 , there is configured at least one through hole  21  transversely extending through the standing pole  2 . Preferably, the inner walls of the through holes  21  are made to configure inner threads thereby. Similarly and symmetrically, the upper end of another reinforcement rod  31  of the reinforcement set  3  is connected to another side surface of the standing pole  2  by another fastener unit  5 . Specifically, this fastener unit  5  also includes at least one side wing plates  51  welded to the upper end of the corresponding reinforcement rod  31  and parallel with the side surface of the standing pole  2 , and this at least one side wing plate  51  is configured with at least one through hole  511 . In assembling operation, the through holes  511  of the side wing plates  51  extending from the upper ends of both of the reinforcement rods  31  of the reinforcement set  3  are aligned with the through hole correspondingly configured on the standing pole  2 . The screw set  53  including a threaded bolt and a threaded nut is provided for fastening the upper ends of the reinforcement rods  31  and the standing pole  2 , in which the threaded bolt is sequentially inserted through the through hole of the side wing plate  51  of the upper end of one reinforcement rod  31 , the through hole of the standing pole  2 , and the through hole of the side wing plate  51  of the upper end of the other reinforcement rod  31 , and is finally locked by the threaded nut at the opposite side of the standing pole  2 . When extending through the through hole  21 , the threaded bolt threadedly matches with the threaded inner wall of the through hole  21 . 
     As shown in  FIG. 3 , with respect to the fastener unit  5  provided for fastening a bottom end of the reinforcement rod  31  to the upper surface of the second primary rod  12 , it includes a includes two side wing plates  51 , a rectangular plate member  52 , and two screw sets  53 . The two side wing plates  51  of the fastener unit  5  are welded to the bottom end of the reinforcement rod  31 . Each of the two side wing plates  51  is configured with a through hole  511 . Corresponding to the through holes  511  of the two side wing plates  51 , the second primary rod  12  to be connected to the bottom end of the reinforcement rod  31  is also configured with two through holes  122 . Preferably, the inner walls of the through holes  122  are made to configure inner threads thereby. Further, the rectangular plate member  52  is configured with two through holes  521  respectively corresponding to the through holes  511  of the two side wing plates  51 . Each of the screw sets  53  includes a threaded bolt and a threaded nut. The threaded bolts of the screw sets  53  are adapted for sequentially passing through the through holes  511  of the side wing plates  51 , passing through the through holes  122  while matching with the inner threads configured at the inner walls of the through holes  122 , and then passing through the through holes  521  of the rectangular plate members  52 , and finally being locked with the threaded nuts of the screw sets  53 . In such a way, two fastener units  5  are used to secure the bottom end of the reinforcement rod  31  to one side of the second primary rod  12 . In a similar manner, the bottom end of the other one reinforcement rod  31  of the reinforcement set  3  is secured to the other side of the second primary rod  12  by another two fastener unit  5 . Likewise, another reinforcement set  3  is assembled for reinforcing the strength of connection between the other standing pole  2  and the other second primary rod  12 , details of which can be learnt by referring to the above description and are not to be iterated hereby. 
       FIG. 4A  is an exploded view showing one of the hanging racks  4  according to the first embodiment of the present invention. Each of the hanging rack  4  includes a cross beam  41  and a plurality of hanging bars  42 .  FIG. 4B  is an exploded view showing the hanging bars  42 , the protective caps  44  and the pad sets  7  according to the first embodiment of the present invention.  FIG. 4C  is a cross sectional view showing the hanging bar  42  being secured to the cross beam  41  by screw bolts  43  according to the first embodiment of the present invention.  FIG. 5  is an exploded view showing the connection of the standing poles  2  and the hanging racks  4  according to the first embodiment of the present invention. 
     Referring to  FIG. 5  and further referring to  FIGS. 4A through 4C , it can be seen that the disassemblable hanging cart for carrying and storing folding chairs can be provided with a plurality of hanging racks  4 . However, the exact quantity of hanging racks  4  provided is mostly determined in accordance with the specific height of the standing poles  2 . In the first embodiments shown in the foregoing drawings, it is exemplified that there are two hanging racks  4  provided. As shown in  FIG. 4A , each of the hanging rack  4  includes the cross beam  41  and a plurality of hanging bars  42  perpendicularly crossing the cross beam  41 . The cross beam  41  has two opposite ends. One end of the cross beam  41  is adapted for being connected to one standing pole  2  and another end of the cross beam  41  is adapted for being connected to the other standing pole  2 . The cross beam  41  is configured with a plurality of horizontal through holes  411  horizontally and transversely extending through the cross beam  41 , and a plurality of vertical through holes  412  vertically and transversely extending through an upper wall of the cross beam  41  and located corresponding to the horizontal through holes  411 . Preferably, the inner wall of each of the vertical through holes  412  is made with inner threads. The hanging bars  42  are configured in a hollow round tube shape. Each of the hanging bars  42  is configured with a vertical hole  421  at a central position thereof. The hanging bars  42  are allowed to be inserted through the horizontal through holes  411  of the cross beam  41 , such that the vertical holes  421  of the hanging bars  42  are aligned with the vertical through holes  412  of the cross beam  41 . Preferably, the vertical through holes  412  are made with inner threads thereby. In such a way, as shown in  FIG. 4C , a plurality of threaded bolts  43  are inserted though and threadedly matched with the vertical through holes  412 , and are further inserted though the vertical holes  421  of the hanging bars  42 . The bolts  43  force the hanging bars  42  to move downwards such that the hanging bars  42  contact with the lower side walls of the through holes  411  of the cross beam  41 . Thus, the front ends of the threaded bolts  43  interfere with inner walls of the hanging bars  42 , so as to apply pressing forces thereto. In such a way, the hanging bars  42  are securely fixed with the cross beam  41 . 
     In according with the first embodiment of the present invention, the pad set  7  includes a covering pad  71  and two pad connection holes  72  disposed at two sides of the covering pad  71 . The sizes and locations of the pad connection holes  72  are corresponding to the hanging bars  42 . As shown in  FIG. 4B , two of the immediately adjacent hanging bars  42  are inserted into the two corresponding pad connection holes  72  of the covering pad  71 , thereby connecting two hanging bars  42  with one pad set  7 . According to a second embodiment of the present invention, the pad set  7  may include a covering pad  71  and three pad connection holes  72  disposed in the covering pad  71  (not shown in drawings). The sizes and locations of the pad connection holes  72  are corresponding to the hanging bars  42 . Three of the immediately adjacent hanging bars  42  are inserted into the three corresponding pad connection holes  72  of the covering pad  71 . Thus, each one of the pad sets  7  is mounted onto three immediately adjacent hanging bars  42 . In according with a third embodiment of the present invention, the pad set  7  may include a covering pad  71  and there is only one pad connection hole  72  disposed in the covering pad  71  (not shown in drawings). The size of the pad connection hole  72  is corresponding to the hanging bars  42 . Each of the hanging bars  42  has one covering pad  71  mounted thereto, thereby connecting the hanging bars  42  with the pad sets  7 . Because the hanging bars  42  are usually made of metal tubes, the friction forces between the hanging bars  42  and the folding chairs are metal-metal interface friction force, which is small. Thus, it makes the folding chairs more likely be fallen out of the hanging cart while moving the hanging cart from place to place. The present invention uses the pad sets  7  to increase the friction forces. The covering pads  71  may be made of a cushion, fabric, rubber, plastic or any material that can provide sufficient friction force to prevent the folding chairs from falling off the hanging cart according to the present invention. The covering pad  71  may also take advantage of physical structures or shapes to increase the friction forces, such as ridges, grooves or wavy shapes. 
     In accordance with the first preferred embodiment of the present invention, both ends of each hanging bars  42  are provided with protective pads  44 . The protective pads  44  are made of elastic or flexible materials, such as rubber and plastic. The protective pads  44  are adapted for protecting the user from being injured by the rigid end sides of the hanging bars  42 . Further, the surface of each protective pad  44  is preferably configured with a protruded pattern  441  for providing further protection to the protective pad  123  itself. Furthermore, the protective pad  44  may secure the covering pad  71  on the hanging bar  42 . 
     Further, as shown in  FIGS. 4B and 5 , each hanging rack  4  is secured to the two standing poles  2  by fastener units  5 . The fastener unit  5  includes two side wing plates  51 , a rectangular plate member  52 , and two screw sets  53 . The cross beam  41  has two opposite end sides, and each of the two opposite end sides of the cross beam  41  is connected to one of the two standing poles  2  by the fastener unit  5 . The two side wing plates  51  of the fastener unit  5  are perpendicularly welded to the end side of the cross beam  41 . Each of the two side wing plates  51  is configured with a through hole  511 . Corresponding to the through holes  511  of the two side wing plates  51 , the standing poles  2  to be connected to the end side is also configured with an assembly portion  22 . The assembly portion  22  includes at least two through holes transversely configured through the standing poles  2 . Preferably, the inner walls of the through holes of the assembly portions  22  are made to configure inner threads thereby. Further, the rectangular plate member  52  is configured with two through holes  521  respectively corresponding to the through holes  511  of the two side wing plates  51 . Each of the screw sets  53  includes a threaded bolt and a threaded nut. The threaded bolts of the screw sets  53  are adapted for sequentially passing through the through holes  521  of the rectangular plate members  52 , passing through the through holes of the assembly portions  22  while matching with the inner threads configured at the inner walls thereof, and then passing through the through holes  511  of the side wing plates  51 , and finally being locked with the threaded nuts of the screw sets  53 . In such a way, the hanging rack  4  can be conveniently secured between two standing poles  2 . However, it should be noted that the quantity of the hanging racks is not restricted by the present invention, and also the quantity of the assembly portions  22  is not restricted by the present invention. For example, alternative assembly portions  22  may be configured adjacent to the original assembly portions  22  for allowing adaptive adjustment of the height of the hanging rack  4  according to the height of the folding chairs. Therefore, the disassemblable hanging cart according to the present invention may carry and store various folding chairs with different sizes. 
     Further, it is worth mentioning that the parts of the disassemblable hanging cart for the folding chairs are exemplified as but not restricted to be assembled or connected by fastener units  5  as illustrated above. Any other approach adapted for convenient assemble and disassemble operation can be used. Furthermore, the quantities of the through holes and threaded bolts employed for the fastener units are not restricted by the present invention. 
       FIG. 7  illustrates the operation status of the disassemblable hanging cart for folding chairs, in which a plurality of folding chairs are accommodated on the disassemblable hanging cart for the folding chairs.  FIG. 8  is a side view of operation status of  FIG. 7 . Referring to  FIGS. 7 and 8 , according to the first embodiment, the present invention is illustrated as including two hanging racks  4 . Both sides of the hanging bars  42  of the hanging racks  4  can be used for hanging the folding chairs. In operation, according to the sizes of the folding chairs to be hung, two or three immediately adjacent hanging bars  42  are used for hanging one folding chair. In other words, when hanging the folding chairs in smaller size, the covering pad  71  having two pad connection holes  72  are mounted to two of the immediately adjacent hanging bars  42  to hang the folding chairs. When hanging the folding chairs in larger size, the covering pad  71  having three pad connection holes  72  are mounted to three of the immediately adjacent hanging bars  42  to hang the folding chairs. In such a way, the disassemblable hanging cart for the folding chairs can be used for carrying and storing a plurality of folding chairs in different sizes at the same time. The hanging bars  42  may also be distributed more closely and the folding chairs may be hung at four, five, or more immediately adjacent hanging bars  42 . When the folding chairs are hung on the hanging bars  42 , the folding chairs are rest on the pad sets  7 , which provides friction forces to prevent the folding chairs from falling off the hanging cart. According to the third embodiment of the present invention (not shown in drawings), the covering pad  71  having a singular pad connection hole  72  is mounted to the hanging bar  42 , which is capable of hanging the folding chairs in various sizes and does not need to replace the covering pads  71  due to the sizes of the folding chairs. However, the friction forces provided by the covering pads  71  according to the first and second embodiments are different from that provided by the covering pads  71  according to the third embodiment. The pad sets  7  provide friction forces and therefore effectively prevent the folding chairs from falling out of the hanging cart according to the present invention. As shown in  FIGS. 7 and 8 , the protective pads  44  provided at the ends of the hanging bars  42  are configured with protruded edges, which are adapted for stopping the folding chairs loaded thereby from falling off from the disassemblable hanging cart for the folding chairs. 
     Although the present invention has been described with reference to the preferred embodiments thereof, it is apparent to those skilled in the art that a variety of modifications and changes may be made without departing from the scope of the present invention which is intended to be defined by the appended claims.