Patent Publication Number: US-10772403-B1

Title: Assembeled multifunctional cylindrical bag

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a cylindrical bag-style container, especially to a cylindrical bag that offers multiple functions via combinations of bag-and-cylinder assemblies. 
     2. Description of the Prior Arts 
     Containers are normally used to meet needs of storage. Herein a container generally refers to any tool that is used to accommodate, store, or transport objects. For applications in diversified fields and functions, containers of various characteristics are provided, ranging from small ones, such as bottles, cans, and jars, to large ones such as boxes, baskets, bags, golf balls or socks etc. 
     Enhanced by commercial promotion, classifications of containers go into more diversified and dedicated categories. With reference to  FIG. 5 , a lightweight golf Den Caddy bag is shown. Different from a conventional golf den caddy bag, the lightweight golf den caddy bag is simplified in design. The lightweight golf den caddy bag has a base  91  and a cylinder wall  92 . The cylinder wall  92  surrounds a periphery of the base  91  and extends upright to form a storage space. A top of the cylinder wall  92  forms an opening  93 . A user is able to store and carry golf-related items, such as clubs, balls, sports accessories, and other items such as umbrella, for example. 
     However, despite the term “lightweight”, the abovementioned lightweight golf bag only provides a basic storage function with little versatility and low additional value. Therefore, how to offer a bag offering multiple functions to the user via clever structural design without affecting its basic functionality is an issue to be resolved. 
     To overcome the shortcomings, the present invention provides an assembled multifunctional cylindrical bag to mitigate or obviate the aforementioned problems. 
     SUMMARY OF THE INVENTION 
     The main objective of the present invention is to provide an assembled multifunctional cylindrical bag with an inner cylinder being detachable and having a thermal insulation function, thereby offering diversified additional functions beyond the basic storage, which facilitates versatility in use. 
     The assembled multifunctional cylindrical bag has an outer bag assembly and an inner cylinder assembly. The outer bag assembly has an outer bag, an outer bag annular wall, an outer bag opening, and an outer cap. The outer bag has an outer bag space. The outer bag annular wall surrounds the outer bag space. The outer bag opening is formed on an end of the outer bag annular wall and communicates with the outer bag space. The outer cap selectively closes the outer bag opening. The inner cylinder assembly is detachably mounted in the outer bag space of the outer bag and has an inner cylinder, an inner cylinder annular wall, and an inner cylinder opening. The inner cylinder has an inner cylinder space with a thermal insulation function. The inner cylinder annular wall is made of a rigid material and surrounds the inner cylinder space. The inner cylinder opening is formed on an end of the inner cylinder annular wall and communicates with the inner cylinder space. 
     According to the abovementioned structure, the present invention has an outer bag assembly and an inner cylinder assembly which is detachably mounted inside the outer bag assembly. The inner cylinder assembly supports the outer bag assembly by the rigid inner cylinder annular wall, so the outer bag assembly has sufficient structural strength for the user to sit thereon and still maintains its shape. The inner cylinder of the inner cylinder assembly stores items in the inner cylinder space and has a thermal insulation function to keep the stored items cold or warm, such as storing drinks in the summer and keeping cooked food warm. Moreover, since the inner cylinder assembly is detachably assembled inside the outer bag assembly, the outer bag space of the outer bag assembly offers a bigger containing space when the inner cylinder assembly is removed from the outer bag assembly, thereby providing a larger storage capacity and better portability. 
     The versatility of the aforementioned assembled multifunctional cylindrical bag is even more manifested when applied in specific fields such as golfing or indoor or out door parties. For example, when the assembled multifunctional cylindrical bag is used as a lightweight golf den caddy bag, the outer bag assembly can be simply used as a ball bag, or the outer bag assembly can be assembled with the inner cylinder assembly for users to sit thereon and offer cold drinks for cooling off in hot weather. 
     Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of an assembled multifunctional cylindrical bag in accordance with the present invention; 
         FIG. 2  is an exploded view of the assembled multifunctional cylindrical bag in  FIG. 1 ; 
         FIG. 3  is a side view in cross-section of the assembled multifunctional cylindrical bag in  FIG. 1 ; 
         FIG. 4  is a side view of the assembled multifunctional cylindrical bag in  FIG. 1 ; showing the cylindrical bag in use; and 
         FIG. 5  is a perspective view of a conventional lightweight golf den caddy bag. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     With reference to  FIGS. 1 and 2 , a preferred embodiment of an assembled multifunctional cylindrical bag in accordance with the present invention comprises an outer bag assembly and an inner cylinder assembly detachably mounted in the outer bag assembly. 
     The outer bag assembly has an outer bag  10 , an outer bag annular wall  12 , an outer bag opening  13 , and an outer cap  20 . The outer bag  10  has an outer bag space  11 . 
     With further reference to  FIGS. 2 and 3 , the outer bag annular wall  12  surrounds the outer bag space  11 . The outer bag annular wall  12  can be made of a soft or rigid material, and in this preferred embodiment, the outer bag annular wall  12  is rigid, and is made from a polyethylene board. 
     The outer bag opening  13  is formed on an end of the outer bag annular wall  12  and communicates with the outer bag space  11 . In this preferred embodiment, the outer bag opening  13  is located on a top end of the outer bag  10 . 
     In another preferred embodiment, the outer bag assembly further has a wrapping layer  14 . The wrapping layer  14  covers an outer surface of the outer bag annular wall  12  and is made from cloth or leather. Specifically, the wrapping layer  14  is the outermost layer of the present invention on which the manufacturer can change or decorate the appearance for advertising without affecting the main function of the present invention. For example, the wrapping layer  14  can be made to resemble appearance of a beverage bottle, or can be designed with a special color combination or printed with trademarks, etc. 
     The outer cap  20  selectively closes the outer bag opening  13  and has an outer cap exterior surface. When the outer cap  20  closes the outer bag opening  13 , the outer cap exterior surface faces away from the outer bag opening  13 . Specifically, in this preferred embodiment, the outer cap  20  is mounted on a periphery of the outer bag opening  13  by a zipper and thereby selectively seals the outer bag opening. But it is not limited to the abovementioned, as the outer cap  20  can be mounted on the periphery of the outer bag opening  13  by with a hook and loop fastener or a magnet, or the outer cap  20  can be detachably mounted and capped on the periphery of the outer bag opening  13 , as long as the outer cap  20  is able to open and close the outer bag opening  13 . 
     In this preferred embodiment, the outer cap  20  further has a soft pad  30  mounted on the outer cap exterior surface. Therefore, when the outer cap  20  is capped on the outer bag  10 , the soft pad  30  is located outside. By this, when the present invention is placed on the ground with the outer cap  20  closed, the user can sit on the outer cap  20  comfortably with the soft pad  30 . 
     In still another preferred embodiment, the outer bag  10  further has multiple supporting components  70  mounted on an end that is opposite to the outer bag opening  13  of the outer bag  10 . The supporting components  70  are annularly spaced apart from each other at equal intervals. The supporting components  70  extend beyond the outer bag annular wall  12  along a radial direction of the outer bag annular wall  12 . By this, the outer bag  10  can be placed on the ground via the supporting components  70 . Because the supporting components  70  protrude outward along the radial direction, the outer bag  10  stands more stably and is supported by the supporting components  70  without prone to falling. 
     The inner cylinder assembly is detachably mounted in the outer bag space  11 . The inner cylinder assembly has an inner cylinder  40 , an inner cylinder annular wall  42 , and an inner cylinder opening  43 , wherein the inner cylinder  40  has an inner cylinder space  41  with a thermal insulation function. 
     The inner cylinder annular wall  42  is rigid and surrounds the inner cylinder space  41 . In this preferred embodiment, the inner cylinder annular wall  42  is made from a polyethylene board. 
     The inner cylinder opening  43  is formed on an end of the inner cylinder annular wall  42  and is communicating with the inner cylinder space  41 . When the inner cylinder assembly is assembled inside the outer bag space  11 , the inner cylinder opening  43  of the inner cylinder  40  faces to the outer bag opening  13 . 
     In this preferred embodiment, the inner cylinder assembly further has an ice pack  44 . The ice pack  44  is mounted in the inner cylinder space  41  and has an ice pack opening. A periphery of the ice pack opening is mounted on a periphery of the inner cylinder opening  43 . By this, the inner cylinder space  41  of the inner cylinder  40  can be used as a refrigerator, and thus the inner cylinder  40  is adapted to load ice and refrigerate drinks during hot weather. 
     In this preferred embodiment, the inner cylinder assembly further has an inner cap  50 . The inner cap  50  selectively closes the inner cylinder opening  43  of the inner cylinder  40 . The inner cap  50  has an inner cap exterior surface. When the inner cap  50  closes the inner cylinder opening  43  of the inner cylinder  40 , the inner cap exterior surface faces away from the inner cylinder opening  43 . Besides, in this preferred embodiment, the inner cap  50  is detachably mounted and capped on the periphery of the inner cylinder opening  43 , thereby selectively closing the inner cylinder opening  43 . 
     The inner cap  50  further has a handle  60  mounted on the inner cap exterior surface. The inner cylinder  40  is assembled in the outer bag space  11  when in use, and the inner cap  50  is capped on the periphery of the inner cylinder opening  43 , i.e. the inner cap  50  is also located in the outer bag space  11  when in use. Therefore, mounting the handle  60  on the inner cap exterior surface allows the user to directly access the inner cap  50  to open the inner cylinder opening  43  without being limited by the outer bag annular wall  12 . That is, the user does not have to take out the inner cylinder  40  from the outer bag space  11  before opening the inner cylinder opening  43 . 
     With further reference to  FIGS. 2, 3 and 4 , by mounting the inner cylinder  40  in the outer bag space  11 , adopting the rigid inner cylinder annular wall  42  as a support structure, and mounting the soft pad  30  on the outer cap  20 , the user can close the outer cap  20  and then the present invention is adapted for seating. Therefore, the present invention is not only adapted to load items but also can be used as a chair. Additionally, the inner cylinder  40  can be used as an insulated ice bucket to load ice and drinks during hot weather, further enhancing functionality and convenience. Besides, by changing the appearance of the wrapping layer  14 , for example making the wrapping layer  14  resemble a beverage bottle, designed with a special color combination, or printed with a trademark, etc., advertising and publicity purposes are both achieved without affecting the main functionality of the present invention. 
     Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.