Abstract:
A self-supporting protective case includes a shell and a movable cover. The shell defines a cavity for holding an electronic device. The cavity has a plurality of edges. The cover is attached to one of the plurality of cavity edges. The cover includes a connecting portion and a cover portion. The cover portion includes a foldably connected section, and a supporting portion. The cavity is coverable by the cover portion of the cover. The supporting comprises a first supporting block and a second supporting block. A first angle is defined between the first supporting block and the second supporting block. The foldably connected section is foldable to change the first angle and to enable the first supporting block and the second supporting block to be a support for the shell.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application claims priority to Chinese Patent Application No. 201310622483.4 Nov. 30, 2013 in the China Intellectual Property Office, the contents of which are incorporated by reference herein. 
       FIELD 
       [0002]    The subject matter herein generally relates to a self-supporting protective case for protecting an electronic device. 
       BACKGROUND 
       [0003]    A self-supporting protective case is used to protect an electronic device from damage of normal use. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0004]    Implementations of the present technology will now be described, by way of example only, with reference to the attached figures. 
           [0005]      FIG. 1  is an exploded, isometric view of an embodiment of a self-supporting protective case for an electronic device. 
           [0006]      FIG. 2  is similar to  FIG. 1 , but viewed in a different angle. 
           [0007]      FIG. 3  is an assembled view of the self-supporting protective case of  FIG. 1 . 
           [0008]      FIG. 4  is similar to  FIG. 1 , but a cover is open. 
           [0009]      FIG. 5  is an isometric view of the self-supporting protective case of  FIG. 3  in use, where a supporting portion supports a shell to a first position. 
           [0010]      FIG. 6  is similar to  FIG. 5 , where the supporting portion supports the shell to a second position. 
           [0011]      FIG. 7  is similar to  FIG. 5 , where the supporting portion supports the shell to a third position. 
       
    
    
     DETAILED DESCRIPTION 
       [0012]    It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts have been exaggerated to better illustrate details and features of the present disclosure. 
         [0013]    Several definitions that apply throughout this disclosure will now be presented. 
         [0014]    The term “outside” refers to a region that is beyond the outermost confines of a physical object. The term “inside” indicates that at least a portion of a region is partially contained within a boundary formed by the object. The term “coupled” is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections. The connection can be such that the objects are permanently connected or releasably connected. The term “substantially” is defined to be essentially conforming to the particular dimension, shape, or other feature that the term modifies, such that the component need not be exact. For example, substantially cylindrical means that the object resembles a cylinder, but can have one or more deviations from a true cylinder. The term “comprising,” when utilized, means “comprising, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series and the like. 
         [0015]    The present disclosure is described in relation to a self-supporting protective case for protection of an electronic device. 
         [0016]      FIG. 1  illustrates an embodiment of a self-supporting protective case for an electronic device. The self-supporting protective case comprises a shell  20  for receiving an electronic device  10  and a movable cover  30 . In one embodiment, the electronic device  10  is a mobile phone or a computer. 
         [0017]      FIG. 2  illustrates that the shell  20  comprises a cavity  21  for receiving the electronic device  10 . The shell  20  is hollow. The cavity  21  has a plurality of edges. 
         [0018]      FIGS. 3 and 4  illustrate that the cover  30  comprises a connecting portion  31  coupled to an edge of the cavity  21  and a cover portion  32  movably coupled to the connecting portion  31 . The cover portion  32  is configured to cover the cavity  21  to protect the electronic device  10 . In one embodiment, the connecting portion  31  is soft material. 
         [0019]    The cover portion  32  comprises a base  33  and a supporting portion  34  mounted in the inside of the section  320 . The cover portion  32  further comprises a foldably connected section  320  for covering the cavity  21 . The supporting portion  34  is mounted in the inside of the section  320 . In one embodiment, the foldably connected section  320  are soft material; the base  33  and the supporting portion  34  are magnetic; the cover portion  32  is substantially square; and the base  33  is substantially isosceles trapezoid. The supporting portion  34  comprises two bent portions  35 , two folding portions  36 , and a bottom portion  37 . The two bent portions  35  are located outside of the base  33 . The bottom portion  37  is located between the two folding portions  36 . Each bent portion  35  is located between the base  33  and one corresponding folding portion  36 . The bent portions  35  are substantially a right angled isosceles triangle. The bottom portion  37  is substantially square. The two bent portions  35  can be folded along a first straight line  40  and a second straight line  41 , respectively. The supporting portion  34  can be folded along a third straight line  42 . Each folding portion  36  is substantially square. The two folding portions  36  can be folded along a first diagonal  43  and a second diagonal  44 , respectively. The two folding portions  36  are folded to be right angled isosceles triangles and substantially perpendicular to the base  33 . The two folding portions  36  can be folded along a third diagonal  45  and a fourth diagonal  46 , respectively. Each folding portion  36  comprises two first supporting blocks  38  and two second supporting blocks  39 . A first angle is defined between the first supporting blocks  38  and the corresponding second supporting blocks  39  when the first supporting blocks  38  and the corresponding second supporting blocks  39  are folded. The first angle is greater than 0° and less than 180°. When the first angle is 0°, the first supporting blocks  38  are coincident with the corresponding second supporting blocks  39 . When the first angle is 180°, the first supporting blocks  38  and the corresponding second supporting blocks  39  are at the same level. In one embodiment, the second straight line  41  is substantially parallel to the first diagonal  43 ; the first straight line  40 , the second diagonal  44 , and the third diagonal  45  are substantially parallel to each other; the first straight line  40 , the second diagonal  44 , and the third diagonal  45  are substantially perpendicular to both the second straight line  41  and the first diagonal  43 ; a third angle between the third straight line  42  and the first straight line  40  is 45°; a fourth angle between the third straight line  42  and the second diagonal  44  is 45°; a fifth angle between the third straight line  42  and the third diagonal  45  is 45°; a sixth angle between the third straight line  42  and the fourth diagonal is 45°. 
         [0020]      FIGS. 1 and 5  illustrate that in use, the two first bent portions  35  are folded along the first straight line  40  and the second straight line  41 , respectively. The first bent portions  35  are coincident with the base  33 . The supporting portion  34  is folded along the third straight line  42 . The bottom portion  37  is coincident with the base  33 . The two folding portions  36  are folded along the first diagonal  43  and the second diagonal  44 . The first supporting blocks  38  of the corresponding folding portions  36  and the second supporting blocks  39  of the folding portions  36  are at the same level. The first supporting blocks  38  are supported on the base  33  and are substantially perpendicular to the base  33 . A first edge of the second supporting blocks  39  supports the shell  20  to a first position. A second angle is defined between the shell  20  and the base  33 . 
         [0021]      FIGS. 1 ,  6 , and  7  illustrate that the two folding portions  36  are folded along the third diagonal  45  and the fourth diagonal  46 , respectively. When the first supporting blocks  38  of the corresponding folding portion  36  are coincident with the second supporting blocks  39  of the corresponding folding portion  36 , a second edge of the corresponding first supporting blocks  38  and a third edge of the corresponding second supporting blocks  39  support the base  33 , the first edge of the corresponding first supporting blocks  38  and a fourth edge of the corresponding second supporting blocks  39  support the shell  20  in a second position; the first supporting blocks  38  and the second supporting blocks  39  are substantially perpendicular to the base  33 ; and the second angle decreases. When the first angle is greater than 0° and less than 180°, the second edge of the corresponding first supporting blocks  38  and the third edge of the corresponding second supporting blocks  39  support the base  33 , the first edge of the corresponding first supporting blocks  38  and the fourth edge of the corresponding second supporting blocks  39  support the shell  20  to a third position; and the second angle further decreases. In one embodiment, the second angle increases when the first angle decreases. 
         [0022]    In the embodiment, users can fold the folding portion  36  along different diagonals to change the first angle; thereby changing the second angle, thus the supporting portion  34  supports the shell  20  in different positions. It is convenient to use the electronic device  10 . 
         [0023]    It is to be understood that even though numerous characteristics and advantages have been set forth in the foregoing description of embodiments, together with details of the structures and functions of the embodiments, the disclosure is illustrative only and changes may be made in detail, especially in the matters of shape, size, and arrangement of parts within the principles of the disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.