Abstract:
This invention offers a plastic container for compact disk, whose back side is respectively connected with the bottom side and the cover side; and this container is formed through folding the three sides, that is the bottom, back and cover. A disk support base is designed in inner sides of the container bottom; the support base is composed with a button, a pair of small elastic sector area, and a pair of locking slip, etc. through the connection parts to form the elastic bridge; a small ring is designed on the outer circle of the supporting base on the container bottom. Compared with prior art, the rigid support base composed of large rigid sector area, three radial enforced tendons, small ring and locking slip replaces the structure of the old support base with smaller contact surface and weaker rigidity, hence making it more convenient to contain the disk, with excellent reliability, safety and endurance.

Description:
FIELD OF THE INVENTION  
         [0001]    This invention relates to a container for disk, which can evenly balance the disk inside and prevent the disk from being damaged during use, delivery or transport.  
         BACKGROUND OF THE INVENTION  
         [0002]    Most of the existing containers adopt central support to hold the disk. For example, in the product with Chinese Patent No. 00262204.1, the area of the compact disk contacting the central support is designed smaller, and the disk is easy to incline inside. The surface of the data area may be scratched in case of negligence. Meanwhile, the disk will be forced to deviate the support base by the pressing force owing to the insufficient rigidity of the support base, so, affecting the sound effect and the image quality.  
         OBJECTS AND SUMMARY OF THE INVENTION  
         [0003]    The object of the present invention is to provide a new disk container to improve the containers in many aspects, including optimizing structure of the central support, decreasing the pressure of the button, strengthening the hardness of the support, setting the central ring and enlarging the central support area for the non-data area.  
           [0004]    According to the present invention, there is provided a disk container, the back side of said container is respectively connected with the bottom side and the cover side; the container is formed by folding the three sides, that is the bottom, the back and the cover; a disk support is designed on the inner side of the container bottom and composed of connecting button, elastic small sector and locking slip; a small ring is located at the outer circular on support base of the bottom.  
           [0005]    The diameter of the small ring is smaller than that of the central non-data area, and vertically placed to the inner side of the container bottom; the vertical height of the small ring is as same as that of the larger arc shoulder designed on the big sector area on the upside of the container bottom.  
           [0006]    On the core of the support base, the top is a ring-type core neck composed of a pair of rigid disk protection slip and elastic locking slip; the diameter of the protection slip is a bit bigger than that of the locking slip; the height of the disk protection slip is a bit higher than that of the locking slip and the button.  
           [0007]    The vertical height of the small ring is as same as that of the inner ring of larger outer gear-shaped circle and the arc shoulder on the outer ring, thus form the disk supporting assembly.  
           [0008]    The three radial lines from the sector centre in the container bottom is connected in segments with the small ring, hence forming the central rigid supporting assembly, the height of the extending enforced tendon is a bit lower than that of the small ring.  
           [0009]    The protruding paper-holding spring with long arc existed on the center of the container back The length of the protruding arc is a bit shorter than that of the container back.  
           [0010]    The bottom side of the container exists a large ring supporting base.  
           [0011]    Compared with the prior art, this invention offers a elastic bridge structure with rigid and flexible interaction composed by the button, small elastic sector and the locking slip. And this container is also designed with a small circular support ring, hence, avoiding the problems such as the smaller support area in the central support base and the imbalance of the support force borne by the disk. Meanwhile, a concave slot is designed in the position between the button bottom and the bottom of the small sector area so that the button can evenly distribute the axial pressing force in surfaces of the two elastic bridge, hence, it becomes easier and more convenient to hold the disk, with excellent reliability, safety and endurance. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0012]    The invention is described with reference to the following drawings.  
         [0013]    [0013]FIG. 1 shows the elevation of the disk container of the present invention in the status of opening.  
         [0014]    [0014]FIG. 2 shows the front view of the disk container of the present invention as shown in FIG. 1.  
         [0015]    [0015]FIG. 3 shows the bottom view of the disk container of the present invention as shown in FIG. 1.  
         [0016]    [0016]FIG. 4 shows the rear view of the disk container of the present invention as shown in FIG. 1.  
         [0017]    [0017]FIG. 5 shows the right view of the disk container of the present invention as shown in FIG. 1.  
         [0018]    [0018]FIG. 6 shows the  6 - 6  section view in FIG. 2, that is the longitudinal cutaway view of the parts composed by the straight elastic bridge of the support base, locking slip, locking wing, button and small ring, etc., when the disk is closed.  
         [0019]    [0019]FIG. 7 shows the.  7 - 7  section view in FIG. 2, that is the transverse cutaway view of the parts composed by the rigid disk protection base of the support, disk protection slip, arc shoulder, three-way radial lines and small ring, etc., when the disk is closed.  
         [0020]    [0020]FIG. 8 shows the  6 - 6  section view in FIG. 2, that is the longitudinal cutaway view of the parts composed by the locking slip showing the disk and the support base, small ring and the concave area of the big circular base when they are closed.  
         [0021]    [0021]FIG. 9 shows the  7 - 7  section view in FIG. 2, that is the partial transverse cutaway view of parts composed by the disk protection slip showing the disk and the support base, small ring, the protrude arc with large round support base, container back and container cover, etc. when the container is closed.  
         [0022]    [0022]FIG. 10 shows the cutaway view of the straight concave slot in initial status when the force is applied to the button.  
         [0023]    [0023]FIG. 11 shows the initial cutaway view of the locking slip of the support, locking wing, straight elastic bridge and the disk when a certain pressure is applied to the disk.  
         [0024]    [0024]FIG. 12 is a magnified view of the support base  18  in FIG. 1 before storing the disk.  
         [0025]    [0025]FIG. 13 is an enlarged ichnography of the support base  18  in FIG. 2.  
         [0026]    [0026]FIG. 14 is an enlarged elevation view of the support base  18  in FIG. 1.  
         [0027]    [0027]FIG. 15 is an enlarged view of the bottom view of the support base  18  in FIG. 1.  
         [0028]    [0028]FIG. 16 is the enlarged transverse cutaway view when the disk is being contained in FIG. 1.  
         [0029]    [0029]FIG. 17 is the enlarged longitudinal cutaway view when the disk is being contained in FIG. 1.  
         [0030]    [0030]FIG. 18 is the structural diagram of the large circular support base of the container as another embodiment of the present invention. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0031]    As shown in the figures, the container back  13  is respectively connected with the container bottom  12  and the container cover  11 ; a book-like container is formed by folding the container bottom  12 , the container back  13  and the container cover  11  together; a disk support base  18  is designed in the inner side of the container bottom  12 ; said support base  18  includes button  21 , a pair of small elastic sector area  15  and locking slip  20 , which form a straight elastic bridge together with connection piece  15 D and the concave slot  28 ; The button  21  is a cylindrical button with a flat top; said a pair of small sector area  15  is in symmetry of the core of the disk support base; the two ends of the elastic bridge are connected with the cone-shaped pier  15 A and extended to be connected with the base of the small ring  26 ; the small elastic sector area  15  is designed with a locking slip  20  which is equipped with a locking wing  20 A.  
         [0032]    The disk support base  18  also includes a rigid support large sector area  16 , which is respectively connected with the inner side of the container bottom  12  in segments by the rigid tilting surface  16 C and small ring  26 . The small ring  26  is vertical to and connected with the container bottom. The rigid support large sector area  16  is designed with an arc support shoulder  17  and disk protection slip  19 . On the top of the core of the support base  18 , a ring neck is formed by a pair of rigid disk protection slip  19  and a pair of elastic locking slip  20  in segments. The diameter of the protection slip  19  is a bit bigger than that of the locking slip  20 , but a bit smaller than the diameter of the central hole of the disk. A segment circle is formed by the rigid disk protection slip  19  and the locking slip  20 . The protection slip  19  is vertical to and connected with the larger sector area  16 . And the height of the disk protection slip  19  is a bit higher than that of the locking slip  20  in its static status. The small ring  26  has the same core with arc shoulder  17  over the rigid support large sector area  16 . Besides, the small ring  26  has the same height with the arc shoulder  17  and the protrudent support shoulder  12 D of the bottom  12 .  
         [0033]    The support base  18  also includes three radial strengthening tendons designed in the back of the container bottom  12 . With the core of the large sector area  16  as the radial point, the tendon extends along the base of the sector area and the central line of the sector area to form three radial lines  16 A,  16 B, these three radial lines  16 A,  16 B extend to the rigid tilting surface  16 C in the inner side of the container bottom and form enforced keels  27 , which are respectively connected with the rigid tilting surface  16 C and the small ring  26 . The enforced keels  27  have the same height with the radial lines  16 A,  16 B.  
         [0034]    The center of the container back  13  is designed with an extended and protrudent arc baffle  13 A, which enhances the rigidity of the container back and prevents the container from being deformed.  
         [0035]    The container is designed with a cylindrical button  21  with a flat top. And a straight elastic bridge is formed by the button  21 , a pair of small sector area  15  with the core of the support base  18  as the symmetrical point and the concave slot  28 . The two ends of the elastic bridge are connected with the cone-shaped pier  15 A. When adding pressing force, the bridge will elastically sink to become a concave arc, the concave slot  28  and the cone-shaped pier  15 A will incline towards the center. When the pressing force is released, the bridge will quickly return to its original position owning to its upward elasticity and the transverse eccentric force from the two ends of the cone-shaped pier applied to the bridge. At the same time, the concave slot  28 , the locking wing  20 A of the locking slip  20  and the button  21  will also quickly return to their original position.  
         [0036]    The central button  21  and the arc locking slip  20  which is symmetric to the button  21  and with some extended space are located in the two ends of the bridge center. The cylindrical button  21  is located in the center of the bridge. When force is applied to the button  21 , it will be transmitted to the concave slot  28  at the two ends of the bridge center and the small sector area  15  through the base of the button  21 . The force applied to the two ends of the bridge will cause the bridge surface to elastically deform at the central point as the symmetrical position. Meanwhile, the concave slot  28  connected with the bridge surface, the locking slip  20  and the locking wing  20 A in the top will also be turned inward, with even downward shift along the axial direction. When the diameter of the locking wing  20 A is smaller than that of the central hole of the disk, the central hole of the disk shall upward deviate the core neck and locking wing along the axial direction, the lower edge of the center hole will be placed over the locking wing  20 A. The location of concave slot  28  will make the central button  21  become easy, convenient and safe to be touched on by finger.  
         [0037]    The small ring  26  has the same core with the center of the small sector area  15  and the large sector area  16 , the outside diameter of the small ring  26  is a bit smaller than that of the non-date area near the central hole of the disk. The small ring  26 , the protrudent support shoulder  12 D of the large ring and the arc shoulder  17  on the rigid large sector area  16  have the same height, with the function of effectively supporting the non-data area of the disk. The disk will be kept at the same level without any distortion.  
         [0038]    The outer diameter of a pair of the arc protection slip  19  is greater than that of the arc locking slip  20 , but a bit smaller than that of the central hole of the disk. The disk protection slip  19  is a bit higher than the button  21  in its natural status, with the functions of placing the disk and protecting the button from being activated so as to securely holding the disk when the container is closed.  
         [0039]    The small ring  26  and the enforced keels  27  not only enhance the strength of the whole support base  18 , preventing it from being deformed, but also keep the front and back surfaces of non-data area on the disk from being affected its stable storing owing to the pressing force from axial and diameter direction. In addition, the whole structural assembly of the support base  18  shall permanently retain the designed position, avoid of deformation.  
         [0040]    When container is used to hold the disk, the edge of the central hole of the disk  25  shall be put right toward the disk protection slip  19 A, the two locking slips  20  and the above locking wing  20 A. Under the navigation of the disk protection slip  19 , the locking wing  20 A shall hold the two symmetrical edges  25 A of the central hole of the disk  25 , making the disk stay in the temporary suspension status. When applying moderate force to lightly press the disk, the two locking wings  20 A will receive downward axial pressing force from the edge of disk center hole. The force shall be transmitted to the locking slip  20 , the concave slot  28  and the elastic bridge surface  15 C which appears to be concave surf, when the diameter of two locking wings  20 A is smaller than the diameter of  25 A, the incline degree of the elastic bridge surface  15 C will be close to the maximum value. In this case, the edge  25 A of the central opening of the disk  25  shall move downward through the locking wing  20 A due to the push of the finger. And the non-data area of the disk shall contact the rigid arc shoulder  17  on the large sector area  16 , the small ring  26 , arc shoulder  12 C and the protrudent support shoulder  12 D inside the large ring. Meanwhile, the elastic force from the pier  15 A and the elastic bridge surface  15 C will be released; the concave slot  28 , the locking slip  20  and the locking wing  20 A will quickly return to their original position; the locking slip  20  and the locking wing  20 A will be meshed with the relevant position on the edge of  25 A. The center non-data area and edge non-data area on the disk are evenly positioned on the symmetrical and rigid arc support shoulder  17 , small ring  26 , arc shoulder  12 C and the outer arc-shaped protrudent support shoulder  12 D. Due to the three enforced radial lines  16 A and  16 B of the large sector  16  extending to the inner side of the ring  26  to form enforced keels  27  along the rigid tilting surface  16 C, the strength of the support base  18  is enhanced. In addition, the small ring  26 , the arc shoulder  12 C, the outer circular protruding support shoulder  12 D respectively and properly support the non-data area of the disk  25  and the outer edge of the disk  25 B, so the disk can be stably located on the support base  18 . The button  21  and the locking slip  20  are a bit lower than the disk protection slip  19 . The rigid disk protection slip  19  may resist the external force and prevent the button  21  from being improperly activated owing to the force. Then close the cover  11 . Now the inner arc disk pressing slip  11  C and the extended arc spring  13 A on the container back  13  will moved consequently, so as to be closed with the container bottom  12 , also the edge of the under surface of the disk  25 C is symmetrically limited inside the large ring. The spring  13 A can not only firmly holding the disk and instruction of the disk, but also enhance the rigidity of the container back. Therefore, the container can bear more pressing force, in avoid of being damaged caused by pressing or over-weight during transportation or moving.  
         [0041]    When taking out the disk, the user shall lightly press the button  21  which evenly transmits the force to the concave slot  28  and the elastic bridge  15 C. With the equal downward axial force from reverse direction, the bridge  15 C shall gradually sink to become the concave surface; the two locking slips  20  and the above locking wing  20 A shall shrink toward the center in the radial direction and downward in the axial direction due to the light distortion force of the concave slot  28 . Due to the the three radial lines  16 A,  16 B on the back of the two large sector area  16  respectively extending to the inner surface of the container bottom to form the enforced keels  27  and the small ring  26  in the inner surface of the container to form the rigid support base so as to resist the elastic pressing force, hence firmly holding the non-data area of the disk and preventing the supported disk from being deformed owing to the elastic force. When the diameter of the two locking wings  20 A is forced to be less than that of the central hole  25 A of the disk  25  by the pressing force from the button  21 , the central hole  25 A of the disk  25  shall not be affected by the friction force from the locking wing  20 A, and the disk shall move upward. Then the gradient of the elastic bridge  15 C shall be close to the maximum value. The arc shoulder  17  on the larger rigid sector area  16  is designed to share the same surface with small ring  26  in order to prevent the disk from moving downward. When the pressing force of the button  21  is released, the locking wing  20 A shall firstly return to the initial outer position along the radial direction; the top of the locking wing  20 A shall hold the edge of the lower surface of the central hole  25 A of the disk  25 . Under the force of the elastic bridge  15 C, the whole disk shall quickly move upward with the navigation of the disk protection slip  19 , and be ejected from the support base  18 . Then the disk shall be easily taken out.  
         [0042]    Compared with the prior art, the present invention has the following achievements and advantages:  
         [0043]    1. The small ring is designed to enhance the rigidity of the core base, so as to obtain the stable, safe and reliable effect.  
         [0044]    2. A concave slot is designed in the connection between the elastic bridge and the button, hence making the connection parts smaller and thinner, decreasing the pressing force of the button and increasing the elastic force for returning to the original position, making it easier and more convenient to take out the disk.  
         [0045]    3. The disk protection slip is a bit higher than the locking slip, thus effectively preventing the pressure on the core base from the outside of the container cover, preventing the central hole of the disk from deviating the support base, effectively protecting the disk from deviating the support base.  
         [0046]    4. The three radial enforced tendons on the rear of the container bottom extend to the inside of the container and connect with the small ring to form the core base with greater stability and rigidity, hence effectively prevent the disk from being deformed and damaged. Meanwhile, they shall restrict the two large sector areas on the core base from being tilted and deformed owing to the external force.