Patent Publication Number: US-2009223961-A1

Title: Safety buckling cover

Description:
FIELD OF THE INVENTION 
     The present invention relates to cups, and particularly to a safety buckling cover for a cup. The cover is integrally formed with a buckle which is formed by two hook blocks. The two hook blocks are arranged oppositely so as to form with a clamping portion. A front lateral side of each hook block has a rib which has a semi-round shape for enhancing the structure of the whole cup. 
     BACKGROUND OF THE INVENTION 
     Conventional cup cover has an outer edge and a sealing block. An inner edge of the cover has an embedding groove. When driving the sealing block to break the breaking line so as to fold inwards, the sealing block can be embedded into the embedding groove in the cup cover directly. 
     However by a recess to buckle the seal block has the defect that the sealing block can not be firmly secured. Only two sides thereof are clamped. The resilient force from the sealing block after bending can not be released. As the sealing block returns elastically, it will not buckled again. The operation is very inconvenient. 
     Thus from above discussion, it is known that the prior art has the following defects. 
     1. The sealing block is buckled in the embedding groove, the operation of pushing and pressing is difficult for the user to understand. 
     2. The pushing portion of the sealing block is inclined to the top surface thereof. It is inconvenient for the user to apply a force thereto. It is easy to break due to an improper force applied thereto. 
     3. In buckling of the sealing block, it cannot be buckled tightly. The user is easy to apply an overlarge force so as to destroy the cup cover. 
     SUMMARY OF THE INVENTION 
     Accordingly, the object of the present invention is to provide a safety buckling cover which has a buckle. The buckle includes two hook blocks for safely clamping a movable unit therebetween to prevent from releasing out. A front lateral side of each hook block has an inclined surface for guiding the movable unit into the space between the two hook blocks. Moreover, the present invention includes a rib which is a semi-round recess for enhancing the structure of the cover of a cup. 
     To achieve above object, the present invention provides a safety buckling cover has the following features. 
     The safety buckling cover capable of being buckled into a cup; the cover comprising: 
     An outer frame installed at an upper side of the cover; a frame top of the outer frame being installed with a movable unit; a central portion of the cover being formed with a cover surface; 
     The movable unit being approximately vertical to the frame top and being formed with a push portion at one side thereof; the backside of the movable unit being opposite to the push portion; the movable unit having two lateral sides; 
     Each of two lateral sides of the movable unit being installed with a buckle; the two buckles tightly clamping the movable unit from the two lateral sides thereof; a breaking line being formed between a lower side of the backside of the movable unit and the frame top of the cover; by the breaking line, the movable unit can separate from the frame top of the cover to form with a drinking opening; 
     A buckle including two hook blocks; each of the hook blocks having a respective protruding edges resisting against the movable unit for safely clamping the movable unit to prevent the movable unit from releasing out; the front inner lateral side of each hook block having an inclined surface for guiding the movable unit to enter into a space between the two hook blocks; the two hook blocks protruding from the cover surface; and 
     A rib being a semi-round recess for enhancing the structure of the cover; and the cover surface also formed with a vent for venting air. 
     A gap is formed between the buckle and the outer frame. 
     One end of each hook block protrudes from a cover surface of a cover and another end of the hook block is in a recess in a cover surface of the cover. 
     The hook blocks protrude from a cover surface of the cover. 
     Each of the two hook blocks is located in a recess of the cover surface. 
     The drinking opening is as the same elevation as that of an upper surface of the frame top. 
     The drinking opening has an elevation different from that of the outer frame. 
     The cover surface also formed with a vent for venting air. 
     By above mentioned structure, when the movable unit separates from a frame top of the cup cover so as to form with a drinking opening and is buckled between the two hook blocks, the user can drink the juicy in the cup safely. Therefore, the present invention has the effect of avoiding the movable unit from releasing. 
     The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of the present invention. 
         FIG. 2  is a schematic view showing the open operation of the movable unit. 
         FIG. 3  is a partial schematic view of the movable unit of the present invention. 
         FIG. 4  is a schematic cross sectional view of the movable unit of the present invention. 
         FIG. 5  is a schematic view showing the overlapping operation of the present invention. 
         FIG. 6  is a schematic perspective view about another embodiment of the present invention. 
         FIG. 7  is a partial view of the movable unit in another embodiment of the present invention. 
         FIG. 8  is a schematic view showing the opening operation of the movable unit of the present invention. 
         FIG. 9  is a partial assisting view showing the movable unit in another embodiment of the present invention. 
         FIG. 10  is a schematic perspective view of a further embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     In order that those skilled in the art can further understand the present invention, a description will be provided in the following in details. However, these descriptions and the appended drawings are only used to cause those skilled in the art to understand the objects, features, and characteristics of the present invention, but not to be used to confine the scope and spirit of the present invention defined in the appended claims. 
     Referring to  FIGS. 1 to 4 , the structure of the present invention is illustrated. The present invention has the following elements. 
     A safety buckling cover  1  is capable of being buckled into a cup. The cover  1  has an outer frame  2  which is installed at an upper side of the cover  1 . A frame top  20  of the outer frame  2  is installed with a movable unit  3 . A central portion of the cover  1  is formed with a cover surface  21 . 
     The movable unit  3  is approximately vertical to the frame top  20  and is formed with a push portion  30  at one side thereof. The backside  32  of the movable unit  3  is opposite to the push portion  30 . The movable unit  3  has two lateral sides  31   
     Each of two lateral sides  31  of the movable unit  3  is installed with a buckle  6 . The two buckles  6  tightly clamp the movable unit  3  from the two lateral sides thereof A breaking line  5  is formed between a lower side of the backside  32  of the movable unit  3  and the frame top  20  of the cover  1 . By the breaking line  5 , the movable unit  3  can separate from the frame top  20  of the cover  1  to form with a drinking opening  50 . The drinking opening  50  may have the same elevation as that of the frame top  20  or is at different elevation from the frame top  20 . 
     A buckle  6  includes two hook blocks  60 ,  61 . Each of the hook blocks  60 ,  61  has a respective protruding edges  62 ,  63  resisting against the movable unit  3  for safely clamping the movable unit  3  to prevent the movable unit  3  releasing out. The front inner lateral side of each hook block  60 ,  61  has an inclined surface  64 ,  65  for guiding the movable unit  3  to enter into a space between the two hook blocks  60 ,  61 . The two hook blocks  60 ,  61  protrude from the cover surface  2   1  and a gap  66  is formed between the buckle  6  and the outer frame  2 . 
     A rib  7  is a semi-round recess for enhancing the structure of the cover. The cover surface  21  also formed with a vent  22  for venting air. 
     Referring to  FIG. 5 , a schematic view showing that at least two safety buckling covers  1  of the present invention are overlapped so as to reduce the volume effectively to be transferred or storage conveniently. 
     Referring to  FIGS. 6 to 9 , another embodiment of the present invention illustrated. The buckle  6  is formed in a recess area with two hook blocks  60 ,  61  in the recess. Each of the hook blocks  60 ,  61  has a respective protruding edges  62 ,  63  resisting against the movable unit  3  for safely clamping the movable unit  3  to prevent the movable unit  3  from releasing out. The front inner lateral side of each hook block  60 ,  61  has an inclined surface  64 ,  65  for guiding the movable unit  3  to enter into a space between the two hook blocks  60 ,  61 . The two hook blocks  60 ,  61  protrude from the cover surface  21  and a gap  66  is formed between the buckle  6  and the outer frame  2 . A rib  7  is a semi-round recess for enhancing the structure of the cover. The cover surface  21  also formed with a vent  22  for venting air. 
     Referring to  FIG. 10 , the buckle  6  has two hook blocks  60 ,  61  which have same structure as that in the first and second embodiment of the present invention, but a front end of each of the hook blocks  60 ,  61  is protrude from the cover surface  21  and a rear end of each of the hook blocks  60 ,  61  is in a recess recessed from the cover surface  21  so as to reduce the whole height of the cover  1 . A gap  66  is formed between the buckle  6  and the outer frame  2 . 
     Advantages of the present invention will be described herein. 
     1. Two hook blocks of the buckle will clamp the movable unit from movement. 
     2. The push portion of the movable unit is approximately vertical to the frame top so that the user can apply force thereto easily. 
     3. The backside of the movable unit connected to the slot is an inclined surface to prevent the movable unit from breaking due to the carelessness of the user. 
     4. The present invention is commercially and industrially useful. 
     The present invention is thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.