Abstract:
A one-way cigar tube with cutting function is adjustable in length by changing relative position of an outer tube and an inner tube. Furthermore, an end ring received in the outer tube is pressed against a groove of the middle connecting member so as to provide better sealing and positioning effect between the outer tube and the inner tube. Finally, a cigar cutter is removably assembled in the cigar tube, so that the cigar tube is not only capable of carrying cigar but also capable of cutting cigar.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to a cigar tube, and more particularly to one-way telescopic cigar tube with cutting function. 
         [0003]    2. Description of the Prior Art 
         [0004]    The existing cigar tubes mostly are only used to carry cigar, however, both ends of the cigar must be cut before it can be smoked. Therefore, a user has to take both a cigar tube and a cigar cutter with him when going outside, this is inconvenient. 
         [0005]    The present invention has arisen to mitigate and/or obviate the afore-described disadvantages. 
       SUMMARY OF THE INVENTION 
       [0006]    The primary object of the present invention is to provide a one-way telescopic cigar tube with cutting function, wherein a cigar cutter is removably assembled in the cigar tube, so that the cigar tube is not only capable of carrying cigar but also capable of cutting cigar. Further, the length of the cigar tube is adjustable to fit cigars of different lengths. 
         [0007]    To achieve the above object, a one-way telescopic cigar tube with cutting function in accordance with the present invention comprises: an inner tube, a middle connecting member, an upper cover, an end ring, a restriction ring, an elastic ring, an outer tube, a lower cover and a cutter. 
         [0008]    The inner tube has two open ends. The middle connecting member is an annular structure formed in an outer surface thereof with a groove which is located at one end of the middle connecting member, the middle connecting member is connected to one end of the inner tube in such a manner that the one end of the middle connecting member where the groove is located is abutted against an outer periphery of the inner tube. The upper cover is connected to another end of the middle connecting member. The end ring is received in the groove of the middle connecting member and abutted against an outer surface periphery of the inner tube. The restriction ring is formed with an annular groove in its outer surface and connected to another end of the inner tube, the restriction ring has an outer diameter larger than an inner diameter of the end ring to restrict the end ring. The elastic ring is C-shaped and received in the annular groove of the restriction ring. The outer tube is sleeved on the inner tube and has one end connected to the end ring, the restriction ring and the elastic ring are received in the outer tube, so that the elastic ring is prevented from falling off. The lower cover is a hollow structure and formed with a sealing bottom at an end surface thereof, and a pillar stands from the sealing bottom, the lower cover is connected to another end of the outer tube. The cutter comprises a housing and a knife, the housing is formed at a center thereof with a mounting portion, the knife is a hollow conical structure and assembled to the mounting portion of the housing, and the housing is assembled to the lower cover in such a manner that the pillar of the lower cover is inserted in the knife of the cutter. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0009]      FIG. 1  is an exploded view of a one-way telescopic cigar tube with cutting function in accordance with the present invention; 
           [0010]      FIG. 2  is a perspective view of the one-way telescopic cigar tube with cutting function in accordance with the present invention; 
           [0011]      FIG. 3  is a cross sectional view of the one-way telescopic cigar tube with cutting function in accordance with the present invention; 
           [0012]      FIG. 4  is an enlarged view of a part of  FIG. 3 ; 
           [0013]      FIG. 5  is a cross sectional view of a part of the one-way telescopic cigar tube with cutting function in accordance with the present invention; 
           [0014]      FIG. 6  is a cross sectional view showing that the one-way telescopic cigar tube with cutting function in accordance with the present invention is in the longest position; 
           [0015]      FIG. 7  is an enlarged view of a part of  FIG. 6 ; and 
           [0016]      FIG. 8  is a cross sectional view showing that the one-way telescopic cigar tube with cutting function in accordance with the present invention is in the shortest position. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0017]    The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment in accordance with the present invention. 
         [0018]    Referring to  FIGS. 1-7 , a one-way telescopic cigar tube with cutting function in accordance with a preferred embodiment of the present invention comprises: an inner tube  10 , a middle connecting member  20 , an upper cover  30 , an end ring  40 , a restriction ring  50 , an elastic ring  60 , an outer tube  70 , a lower cover  80  and a cutter  90 . 
         [0019]    The inner tube  10  is provided at both end thereof with a first outer thread  11  and a second outer thread  12 , and both ends of the inner tube  10  are open. 
         [0020]    The middle connecting member  20  is an annular structure which is formed on its inner surface with a first inner thread  21  and a second inner thread  23  beside the first inner thread  21 , and is further formed with a groove  22  in an outer surface thereof. The first inner thread  21  and the groove  22  are formed at both ends of the middle connecting member  20 . The middle connecting member  20  is connected to one end of the inner tube  10  in such a manner that the second inner thread  23  of the middle connecting member  20  is engaged with the first outer thread  11  of the inner tube  10 , while the end of the middle connecting member  20  where the groove  22  is located is abutted against an outer periphery of the inner tube  10 . 
         [0021]    The upper cover  30  is formed with an outer thread  31  to be engaged with the first inner thread  21  of the middle connecting member  20 . The end ring  40  is formed with an outer thread  41  and received in the groove  22  of the middle connecting member  20  to abut against the outer surface periphery of the inner tube  10 . 
         [0022]    The restriction ring  50  is formed on its inner surface with an inner thread  51  for engaging with the second outer thread  12  of the inner tube  10 , and an annular groove  52  in its outer surface. The restriction ring  50  has an outer diameter larger than the inner diameter of the end ring  40  to prevent the disengagement of the end ring  40 . In the annular groove  52  is further formed a plurality of concaves  521 . 
         [0023]    The elastic ring  60  is C-shaped and received in the annular groove  52  of the restriction ring  50 . On an outer surface of the elastic ring  60  is formed a plurality of protrusions  61  to be engaged in the concaves  521  of the restriction ring  50 . 
         [0024]    The outer tube  70  is sleeved on the inner tube  10  and formed at both ends thereof with a first inner thread  71  and a second inner thread  72 . The first inner thread  71  of the outer tube  70  is to be engaged with the outer thread  41  of the end ring  40  mounted on the inner tube  10 . The restriction ring  50  and the elastic ring  60  are received in the outer tube  70 , so that the elastic ring  60  is prevented from falling off. In assembly, the elastic ring  60  is compressed first to make the protrusions  61  engage in the concaves  521  of the restriction ring  50 , facilitating the installation of the outer tube  70 . After the outer tube  70  is sleeved on the restriction ring  50 , the elastic ring  60  will be decompressed and press outward against the outer tube  70 . 
         [0025]    The lower cover  80  is a hollow structure formed at both ends thereof with a first outer thread  81  and a second outer thread  82 . An end surface of the lower cover  80  adjacent to the first outer thread  81  is a sealing bottom  83 , and a pillar  831  stands from the sealing bottom  83  toward the end of the lower cover  80  where the second outer thread  82  is located. The first outer thread  81  of the lower cover  80  is engaged with the second inner thread  72  of the outer tube  70 . 
         [0026]    The cutter  90  comprises a housing  91  and a knife  92 . The housing  91  is formed with an inner thread  911  to be engaged with the second outer thread  82  of the lower cover  80  and is formed at a center thereof with a mounting portion  912  in which is formed an inner thread  913 . The knife  92  is hollow conical structure having an outer thread  921  formed at one end thereof for engaging with the inner thread  913  of the mounting portion  912  of the housing  91 . The pillar  831  of the lower cover  80  is inserted in the knife  92  of the cutter  90 . 
         [0027]    The structural relationships of the respective parts of the one-way telescopic cigar tube with cutting function in accordance with the present invention are as mentioned above. The length of the cigar tube is adjustable by pulling the outer tube  70  to make it move with respect to the inner tube  10 . As shown in  FIGS. 3-5 , when the cigar tube is in the shortest position, the end ring  40  received in the outer tube  70  can be pressed against the groove  22  of the middle connecting member  20  so as to provide better sealing and positioning effect between the outer tube  70  and the inner tube  10 . When the cigar tube is in the longest position, as shown in  FIGS. 6 and 7 , the end ring  40  inside the outer tube  70  is stopped against the restriction ring  50  to restrict the travel of the outer tube  70 . 
         [0028]    To use the cutter  90 , the user can unscrew the cutter  90  from the lower cover  80 , and then cut the end of a cigar with the knife  92  of the cutter  90 . The cut-away end of the cigar might get stuck in the knife  92  after cutting, no problem, when the cutter  90  is screwed back on the lower cover  80 , the pillar  831  standing on the sealing bottom  83  of the lower cover  80  will insert into the hollow knife  92  to push out the cut-away end, and thus the knife  92  is cleaned. 
         [0029]    Finally, referring to  FIG. 8 , the cigar tube might also have a diameter big enough to carry more than one cigar. The inner and outer threads on the respective parts of the cigar tube can also change in positions. 
         [0030]    While we have shown and described various embodiments in accordance with the present invention, it is clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.