Case, having soft protective cover and hard protective frame, for electronic devices

Abstract

A case for an electronic device includes: a soft protective cover having a back panel to cover a back portion of the electronic device and side walls extending from the back panel to cover side portions of the electronic device; a hard protective frame, constructed to removably mount on the soft protective cover and wrapping around the side walls of the soft protective cover. The hard protective frame comprises a disconnected side and two facing sides. The disconnected side is disconnected and has a first end portion and a second end portion; and a first mating means formed on the first and second end portions of the hard protective frame and corresponding portions of the side wall of the soft protective cover.

Description

FIELD OF THE INVENTION

The present invention relates to a case, having a soft protective cover and a hard protective frame, for an electronic device and, more particularly, to a mobile phone case having a soft protective cover and a hard protective frame with a number of mating means for secure coupling between the soft protective cover and hard protective frame.

BACKGROUND OF THE INVENTION

Mobile electronic devices such as mobile phones, smart phones, tablet computers, MP3, PDA and the like are in wide use around the world. A user grips such device in his hand or hands to use it and uses his fingers to use various applications of the device. However, while using the device, the user may accidentally drop the device thereby causing damage to the device. In addition, use of mobile electronic devices may cause hand, limb and back problems due to the physical stress of holding the electronic device for an extended period of time.

Users of the mobile electronic devices use cases to protect their devices and manufacturers have produced different types of cases to help the users protect their mobile devices. One type of such cases is the one comprised of a soft protective cover and a hard protective frame in which the hard protective frame encircles the side portions of the soft protective cover as shown in FIGS. 1(a) and 1(b). Generally, the side portions of the soft protective cover have upper and lower ledges and the hard protective frame is received in between the two ledges and applies pressure to an electronic device installed in the soft protective cover. The hard protective frame is securely received in between the two ledges and is not easily dislodged.

However, the hard protective frame has holes for connector, speaker, earphone or other buttons, and the portions for such holes are manufactured thinners than other portions. Accordingly, such portions are more susceptible to damages or breakage. In addition, many cell phones necessitate a case to have several holes on its bottom side portion for charging cable, speaker, or earphone, and the bottom side portion of a case becomes especially more vulnerable to damage or breakage.

Therefore, to solve the problems, there is a need for a case of a soft protective cover and a hard protective frame to have structurally reinforcing elements. This invention is directed to solve these problems and satisfy the long-felt need.

SUMMARY OF THE INVENTION

The present invention contrives to solve the disadvantages of the prior art. The present invention provides a case, having a soft protective cover and a hard protective frame, for an electronic device and, more particularly, to a mobile phone case having a soft protective cover and a hard protective frame with a number of mating means for secure coupling between the soft protective cover and hard protective frame.

The object of the present invention is to provide a case for an electronic device, comprising: a soft protective cover having a back panel to cover a back portion of the electronic device and side walls extending from the back panel to cover side portions of the electronic device; a hard protective frame, constructed to removably mount on the soft protective cover and wrapping around the side walls of the soft protective cover, wherein the hard protective frame comprises a disconnected side and two facing sides, wherein the disconnected side is disconnected and has a first end portion and a second end portion; and a first mating means formed on the first and second end portions of the hard protective frame and corresponding portions of the side wall of the soft protective cover.

Another object of the present invention is to provide a case comprising a soft protective cover, a hard protective frame and a first mating means, and further comprising a rib connecting two facing sides of the hard protective frame.

The advantages of the present invention are: (1) the hard protective frame is securely and tightly coupled to the soft protective cover; (2) the case having the soft protective cover and hard protective frame provides effective protection to an electronic device installed therein; (3) the hard protective frame is not easily dislodged from the soft protective cover; (4) the soft protective cover and hard protective frame are very easy to assemble and dissemble; and (5) the coupling structure of the soft protective cover and the hard protective frame provides a stylish appearance.

Although the present invention is briefly summarized, the fuller understanding of the invention can be obtained by the following drawings, detailed description and appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features, aspects and advantages of the present invention will become better understood with reference to the accompanying drawings, wherein:

FIGS. 1(a) and 1(b) show prior art cases;

FIG. 2 shows a rear elevational view of the present invention;

FIG. 3 shows a perspective view of the present invention;

FIG. 4 shows another perspective view of the present invention;

FIG. 5 shows a rear elevational view of the soft protective cover and the hard protective frame of the present invention;

FIG. 6 shows a front elevational view of the soft protective cover and the hard protective frame of the present invention;

FIG. 7 shows a perspective view of the soft protective cover of the present invention;

FIG. 8 shows another perspective view of the soft protective cover of the present invention;

FIG. 9 shows still another perspective view of the soft protective cover of the present invention;

FIG. 10 shows still another perspective view of the soft protective cover of the present invention;

FIG. 11 shows a perspective view of the hard protective frame of the present invention;

FIG. 12 shows another perspective view of the hard protective frame of the present invention;

FIG. 13 shows still another perspective view of the hard protective frame of the present invention;

FIG. 14 shows still another perspective view of the hard protective frame of the present invention;

FIG. 15 shows a perspective view of the soft protective cover of the present invention;

FIG. 16 shows another perspective view of the soft protective cover of the present invention;

FIG. 17 shows still another perspective view of the soft protective cover of the present invention;

FIG. 18 shows still another perspective view of the soft protective cover of the present invention;

FIG. 19 shows the soft protective cover of the present invention;

FIG. 20 shows the soft protective cover of the present invention; and

FIG. 21 shows the hard protective frame of the present invention.

DETAILED DESCRIPTION EMBODIMENTS OF THE INVENTION

Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, which form a part of this disclosure. It is to be understood that this invention is not limited to the specific devices, methods, conditions or parameters described and/or shown herein, and that the terminology used herein is for the purpose of describing particular embodiments by way of example only and is not intended to be limiting of the claimed invention.

Also, as used in the specification including the appended claims, the singular forms “a”, “an”, and “the” include the plural, and reference to a particular numerical value includes at least that particular value, unless the context clearly dictates otherwise. Ranges may be expressed herein as from “about” or “approximately” one particular value and/or to “about” or “approximately” another particular value. When such a range is expressed, another embodiment includes from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent “about”, it will be understood that the particular value forms another embodiment.

FIGS. 2-21 show the present invention. A case (10) for an electronic device (100) comprises: a soft protective cover (20) having a back panel (21) to cover a back portion (110) of the electronic device (100) and side walls (22, 23, 24, 25) extending from the back panel (21) to cover side portions (120, 130, 140, 150) of the electronic device (100); a hard protective frame (30), constructed to removably mount on the soft protective cover (20) and wrapping around the side walls (22, 23, 24, 25) of the soft protective cover (20), wherein the hard protective frame (30) comprises a disconnected side (35) and two facing sides (33, 34), wherein the disconnected side (35) is disconnected and has a first end portion (36) and a second end portion (37); and a first mating means (40) formed on the first and second end portions (36, 37) of the hard protective frame (30) and corresponding portions of the side wall (25) of the soft protective cover (20). In addition, the first and second end portions (36, 37) of the disconnected side (35) taper. The disconnected side (35) of the soft protective cover (20) comprise an upper ledge (27) outwardly extending from a top (26) of the side wall (25) of the soft protective cover (20), and the first and second end portions (36, 37) of the disconnected side (35) taper towards the upper ledge (27).

The first mating means (40) is to connect the hard protective frame (30) to the soft protective cover (20) and various types of coupling structures are possible.

As shown in FIGS. 11, 15, 16 and other figures, the first mating means (40) may comprise first mating protrusions (43), formed on the first and second end portions (36, 37) of the hard protective frame (30), and first mating holes (42), formed on the side wall (25) of the soft protective cover (20), wherein the first mating protrusions (43) are mated with and received in the first mating holes (42).

Alternatively, first mating recess may be used instead of the first mating holes. In other words, the first mating means (40) comprises first mating protrusions (43), formed on the first and second end portions (36, 37) of the hard protective frame (30), and first mating recesses (42), formed on the side wall (25) of the soft protective cover (20), wherein the first mating protrusions (43) are mated with and received in the first mating recesses (42).

In another alternative embodiment, the first mating means (40) may comprise first mating protrusions (42′), formed on the side wall (25) of the soft protective cover (20), and first mating holes (43′), formed on the first and second end portions (36, 37) of the hard protective frame (30), wherein the first mating protrusions (42′) are mated with and received in the first mating holes (43′).

In still another alternative embodiment as shown in FIGS. 19-21, the first mating means (40) may comprise first mating protrusions (42′), formed on the side wall (25) of the soft protective cover (20), and first mating recesses (43′), formed on the first and second end portions (36, 37) of the hard protective frame (30), wherein the first mating protrusions (42′) are mated with and received in the first mating recesses (43′).

As shown in FIG. 2, the hard protective frame (30) does not substantially cover the back portion (21) or the back portion (21) of the soft protective cover (20).

As shown in FIG. 3 or 13, the first and second end portions (36, 37) of the disconnected side (35) may taper. Preferably, the end portions (36, 37) taper towards the upper ledge (27) of the soft protective cover (20). In other words, one side of the end portions (36, 37) is straight along the ledge (27) whereas the other side tapers.

The side walls (22, 23, 24, 25) of the soft protective cover (20) comprises an upper ledge (27) outwardly extending from a top (26) of the side wall (25) of the soft protective cover (20), and the first and second end portions (36, 37) of the disconnected side (35) taper towards the upper ledge (27).

The case (10) may further comprise a second mating means (50) formed on the two facing sides (33, 34) of the hard protective frame (30) and corresponding portions of the side walls (23, 24) of the soft protective cover (20). The second mating means (50) provides additional coupling mechanism between the soft protective cover (20) and the hard protective frame (30) for secure and tight coupling between them.

FIGS. 9, 10 and 14, the second mating means (50) may comprise second protrusions (53), formed on the two facing sides (33, 34) of the hard protective frame (30), and second mating holes (52), formed on the side walls (23, 24) of the soft protective cover (20), wherein the second mating protrusions (53) are mated with and received in the second mating holes (52).

Alternatively, the second mating means (50) may comprise second protrusions (53), formed on the two facing sides (33, 34) of the hard protective frame (30), and second mating recesses (52), formed on the side walls (23, 24) of the soft protective cover (20), wherein the second mating protrusions (53) are mated with and received in the second mating recesses (52).

In the alternative embodiment, the second mating protrusions may be formed on the soft protective cover (20) and the second mating holes or recesses may be formed on the hard protective frame (30).

The case (10) may further comprise a third mating means (60) formed on the hard protective frame (30) and corresponding portions of the side walls (22, 23, 24) of the soft protective cover (20), wherein the side walls (22, 23, 24, 25) of the soft protective cover (20) comprises an upper ledge (27) outwardly extending from a top (26) of the side walls (22, 23, 24, 25) of the soft protective cover (20).

As shown in FIGS. 13-17, the third mating means (60) may comprise third mating protrusions (63), longitudinally formed on the hard protective frame (30), and third mating recesses (62), longitudinally formed on the soft protective cover (20) immediately beneath the upper ledge (27) along the upper ledge (27), and wherein the third protrusions (63) are mated with and received in the third recesses (62).

In the alternative embodiment, the third mating protrusions may be formed on the soft protective cover (20) and the third mating holes or recesses may be formed on the hard protective frame (30).

The hard protective frame (30) may comprise a lower ledge (37′) outwardly extending from a bottom (36′) of the hard protective frame (30) and the soft protective cover (20) may comprise a longitudinal recess (28) to receive the lower ledge (37′) of the hard protective frame (30). As shown in FIGS. 13-16, the case (10) may further comprise a fourth mating means (70) formed on the hard protective frame (30) and corresponding portions of the side walls (23, 24) of the soft protective cover (20).

The fourth mating means (70) may comprise fourth mating protrusions (73), formed on the lower ledge (37′) of the hard protective frame (30), and fourth mating recesses (72), formed on the longitudinal recess (28) of the soft protective cover (20), and wherein the fourth protrusions (73) are mated with and received in the fourth recesses (72).

In the alternative embodiment, the fourth mating protrusions may be formed on the soft protective cover (20) and the fourth mating holes or recesses may be formed on the hard protective frame (30).

As shown in FIG. 11 and other figures, the hard protective frame (30) may further comprise a rib (80) connecting the two facing sides (33, 34) of the hard protective frame (30). Here, rib is a longitudinal member for structural reinforcement.

The soft protective cover (20) may further comprise a groove (29) formed on the back panel (21) of the soft protective cover (20) for receiving the rib (80), and the rib (80) may fit in the groove (29).

The rib (80) is formed much closer to the disconnected side (35) than the opposing side (32). More preferably, the rib (80) is formed right next to the disconnected side (35).

In Preferred embodiment, the rib (80) is wider toward the two facing sides (33, 34). In addition, both ends of the rib (80) respectively extend toward the first end portion (36) and the second end portion (37) and are connected to the first end portion (36) and the second end portion (37).

As shown in various figures, the soft protective cover (20) and the hard protective frame (30) are constructed into one piece.

The soft protective cover (20) is made of soft material, and preferably, thermoplastic polyurethane (TPU). The hard protective frame (30) is made of hard material, and preferably, polycarbonate (PC).

Various mating means (40, 50, 60, 70) and the rib (80) and groove (29) provide very secure and tight connection between the soft protective cover (20) and the hard protective frame (30). The hard protective frame (30) does not have thin portion and is not susceptible to damage or breakage.

FIGS. 19-22 show the fifth mating means (90). The case (10) further comprises a fifth mating means (90) formed on the rib (80) of the hard protective frame (30) and corresponding portions of the soft protective cover (20).

The fifth mating means (90) comprises fifth mating protrusions (93), formed on the rib (80) of the hard protective frame (30), and fifth mating holes (92), formed on the groove (29) of the soft protective cover (20), wherein the fifth mating protrusions (93) are mated with and received in the fifth mating holes (92). Here, fifth mating protrusions (93) include a protrusion (93) and the fifth mating holes (92) include a fifth mating hole (92). Preferably, there are two protrusions (93) and two holes (92).

Alternatively, the fifth mating means (90) may comprise fifth mating protrusions (93), formed on the rib (80) of the hard protective frame (30), and fifth mating recesses (92), formed on the groove (29) the soft protective cover (20), wherein the fifth mating protrusions (93) are mated with and received in the fifth mating recesses (92). Here, fifth mating protrusions (93) include a protrusion (93) and the fifth mating recesses (92) include a fifth mating recess (92). Preferably, there are two protrusions (93) and two recesses (92).

The case (10) further comprises a fifth mating means (90) formed on the rib (80) of the hard protective frame (30) and corresponding portions of the soft protective cover (20). The fifth mating means (90) comprises fifth mating protrusions (93), formed on the rib (80) of the hard protective frame (30), and fifth mating holes (92), formed on the soft protective cover (20), wherein the fifth mating protrusions (93) are mated with and received in the fifth mating holes (52). Here, fifth mating protrusions (93) include a protrusion (93) and the fifth mating holes (92) include a fifth mating hole (92). Preferably, there are two protrusions (93) and two holes (92).

Alternatively, the fifth mating means (90) may comprise fifth protrusions (93), formed on the rib (80) of the hard protective frame (30), and fifth mating recesses (92), formed on the soft protective cover (20), wherein the fifth mating protrusions (93) are mated with and received in the fifth mating recesses (92). Here, fifth mating protrusions (93) include a protrusion (93) and the fifth mating recesses (92) include a fifth mating recess (92). Preferably, there are two protrusions (93) and two recesses (92).

Various mating means (40, 50, 60, 70, 90) and the rib (80) and groove (29) provide very secure and tight connection between the soft protective cover (20) and the hard protective frame (30). The hard protective frame (30) does not have thin portion and is not susceptible to damage or breakage.

In the alternative embodiment, a case (10) for an electronic device (100) comprises a soft protective cover (20) having a back panel (21) to cover a back portion (110) of the electronic device (100) and side walls (22, 23, 24, 25) extending from the back panel (21) to cover side portions (120, 130, 140, 150) of the electronic device (100); and a hard protective frame (30), constructed to removably mount on the soft protective cover (20) and wrapping around the side walls (22, 23, 24, 25) of the soft protective cover (20). The hard protective frame (30) comprises a disconnected side (35) and two facing sides (33, 34), and the disconnected side (35) is disconnected and has a first end portion (36) and a second end portion (37). In addition, the hard protective frame (30) further comprises a rib (80) connecting the two facing sides (33, 34) of the hard protective frame (30), and the soft protective cover (20) further comprises a groove (29) formed on the back panel (21) of the soft protective cover (20) for receiving the rib (80). Preferably, the rib (80) is formed right next to the disconnected side (35).

In Preferred embodiment, the rib (80) is wider toward the two facing sides (33, 34). In addition, both ends of the rib (80) respectively extend toward the first end portion (36) and the second end portion (37) and are connected to the first end portion (36) and the second end portion (37).

The case (10) further comprises a first mating means (40) formed on the first and second end portions (36, 37) of the hard protective frame (30) and corresponding portions of the side wall (25) of the soft protective cover (20). Preferably, the first mating means (40) comprises first mating protrusions (43), formed on the first and second end portions (36, 37) of the hard protective frame (30), and first mating holes or recesses (42), formed on the side wall (25) of the soft protective cover (20). The first mating protrusions (43) are mated with and received in the first mating holes or recesses (42).

The first and second end portions (36, 37) of the disconnected side (35) taper, and the side walls (22, 23, 24, 25) of the soft protective cover (20) comprise an upper ledge (27) outwardly extending from a top (26) of the side wall (25) of the soft protective cover (20). The first and second end portions (36, 37) of the disconnected side (35) taper towards the upper ledge (27).

The case (10) further comprises a third mating means (60) formed on the hard protective frame (30) and corresponding portions of the side walls (22, 23, 24) of the soft protective cover (20). The side walls (22, 23, 24, 25) of the soft protective cover (20) comprise an upper ledge (27) outwardly extending from a top (26) of the side walls (22, 23, 24, 25) of the soft protective cover (20). Preferably, the third mating means (60) comprises third mating protrusions (63), longitudinally formed on the hard protective frame (30), and third mating recesses (62), longitudinally formed on the soft protective cover (20) immediately beneath the upper ledge (27) along the upper ledge (27). The third protrusions (63) are mated with and received in the third recesses (62).

While the invention has been shown and described with reference to different embodiments thereof, it will be appreciated by those skilled in the art that variations in form, detail, compositions and operation may be made without departing from the spirit and scope of the invention as defined by the accompanying claims.

Claims

1. A case (10) for an electronic device (100), comprising: a soft protective cover (20) having a back panel (21) to cover a back portion (110) of the electronic device (100) and side walls (22, 23, 24, 25) extending from the back panel (21) to cover side portions (120, 130, 140, 150) of the electronic device (100);a hard protective frame (30), constructed to removably mount on the soft protective cover (20) and wrapping around the side walls (22, 23, 24, 25) of the soft protective cover (20), wherein the hard protective frame (30) comprises a disconnected side (35) and two facing sides (33, 34), wherein the disconnected side (35) is disconnected and has a first end portion (36) and a second end portion (37); anda first mating means (40) formed on the first and second end portions (36, 37) of the hard protective frame (30) and corresponding portions of the side wall (25) of the soft protective cover (20),

2. The case (10) of claim 1, wherein the first mating means (40) comprises first mating protrusions (43), formed on the first and second end portions (36, 37) of the hard protective frame (30), and first mating holes or recesses (42), formed on the side wall (25) of the soft protective cover (20), wherein the first mating protrusions (43) are mated with and received in the first mating holes or recesses (42).

3. The case (10) of claim 1, wherein the first mating means (40) comprises first mating protrusions (42′), formed on the side wall (25) of the soft protective cover (20), and first mating holes or recesses (43′), formed on the first and second end portions (36, 37) of the hard protective frame (30), wherein the first mating protrusions (42′) are mated with and received in the first mating holes or recesses (43′).

4. The case (10) of claim 1, wherein the hard protective frame (30) does not substantially cover a back portion (21) of the soft protective cover (20).

5. The case (10) of claim 1, further comprising a second mating means formed on the two facing sides (33, 34) of the hard protective frame (30) and corresponding portions of the side walls (23, 24) of the soft protective cover (20).

6. The case (10) of claim 5, wherein the second mating means comprises second protrusions (53), formed on the two facing sides (33, 34) of the hard protective frame (30), and second mating holes or recesses (52), formed on the side walls (23, 24) of the soft protective cover (20), wherein the second mating protrusions (53) are mated with and received in the second mating holes or recesses (52).

7. The case (10) of claim 1, further comprising a third mating means (60) formed on the hard protective frame (30) and corresponding portions of the side walls (22, 23, 24) of the soft protective cover (20), wherein the side walls (22, 23, 24, 25) of the soft protective cover (20) comprise the upper ledge (27) which outwardly extends from a top (26) of the side walls (22, 23, 24, 25) of the soft protective cover (20),wherein the third mating means (60) comprises third mating protrusions (63), longitudinally formed on the hard protective frame (30), and third mating recesses (62), longitudinally formed on the soft protective cover (20) immediately beneath the upper ledge (27) along the upper ledge (27), and wherein the third protrusions (63) are mated with and received in the third recesses (62).

8. The case (10) of claim 1, wherein the hard protective frame (30) comprises a lower ledge (37′) inwardly extending from a bottom (36′) of the hard protective frame (30) and the soft protective cover (20) comprises a longitudinal recess (28) to receive the lower ledge (37′) of the hard protective frame (30).

9. The case (10) of claim 8, further comprising a fourth mating means (70) formed on the hard protective frame (30) and corresponding portions of the side walls (23, 24) of the soft protective cover (20), wherein the fourth mating means (70) comprises fourth mating protrusions (73), formed on the lower ledge (37′) of the hard protective frame (30), and fourth mating recesses (72), formed on the longitudinal recess (28) of the soft protective cover (20), and wherein the fourth protrusions (73) are mated with and received in the fourth recesses (72).

10. The case (10) of claim 1, wherein the hard protective frame (30) further comprises a rib (80) connecting the two facing sides (33, 34) of the hard protective frame (30), wherein the soft protective cover (20) further comprises a groove (29) formed on the back panel (21) of the soft protective cover (20) for receiving the rib (80).

11. The case (10) of claim 10, wherein the rib (80) is formed much closer to the disconnected side (35) than the opposing side (32).

12. The case (10) of claim 10, wherein the rib (80) is formed right next to the disconnected side (35).

13. The case (10) of claim 12, wherein the rib (80) is wider toward the two facing sides (33, 34).

14. The case (10) of claim 13, wherein both ends of the rib (80) respectively extend toward the first end portion (36) and the second end portion (37) and are connected to the first end portion (36) and the second end portion (37).

15. The case (10) of claim 10, further comprising a fifth mating means (90) formed on the rib (80) of the hard protective frame (30) and corresponding portions of the soft protective cover (20).

16. The case (10) of claim 15, wherein the fifth mating means (90) comprises fifth mating protrusions (93), formed on the rib (80) of the hard protective frame (30), and fifth mating holes or recesses (92), formed on the groove (29) of the soft protective cover (20), wherein the fifth mating protrusions (93) are mated with and received in the fifth mating holes or recesses (92).

17. A case (10) for an electronic device (100), comprising: a soft protective cover (20) having a back panel (21) to cover a back portion (110) of the electronic device (100) and side walls (22, 23, 24, 25) extending from the back panel (21) to cover side portions (120, 130, 140, 150) of the electronic device (100); anda hard protective frame (30), constructed to removably mount on the soft protective cover (20) and wrapping around the side walls (22, 23, 24, 25) of the soft protective cover (20), wherein the hard protective frame (30) comprises a disconnected side (35) and two facing sides (33, 34), wherein the disconnected side (35) is disconnected and has a first end portion (36) and a second end portion (37),

18. The case (10) of claim 17, further comprising a first mating means (40) formed on the first and second end portions (36, 37) of the hard protective frame (30) and corresponding portions of the side wall (25) of the soft protective cover (20), wherein the first mating means (40) comprises first mating protrusions (43), formed on the first and second end portions (36, 37) of the hard protective frame (30), and first mating holes or recesses (42), formed on the side wall (25) of the soft protective cover (20), wherein the first mating protrusions (43) are mated with and received in the first mating holes or recesses (42).

19. The case (10) of claim 17, wherein the first and second end portions (36, 37) of the disconnected side (35) taper, and wherein the side walls (22, 23, 24, 25) of the soft protective cover (20) comprise an upper ledge (27) outwardly extending from a top (26) of the side wall (25) of the soft protective cover (20), and wherein the first and second end portions (36, 37) of the disconnected side (35) taper towards the upper ledge (27).

20. The case (10) of claim 17, further comprising a third mating means (60) formed on the hard protective frame (30) and corresponding portions of the side walls (22, 23, 24) of the soft protective cover (20), wherein the side walls (22, 23, 24, 25) of the soft protective cover (20) comprise an upper ledge (27) outwardly extending from a top (26) of the side walls (22, 23, 24, 25) of the soft protective cover (20), wherein the third mating means (60) comprises third mating protrusions (63), longitudinally formed on the hard protective frame (30), and third mating recesses (62), longitudinally formed on the soft protective cover (20) immediately beneath the upper ledge (27) along the upper ledge (27), and wherein the third protrusions (63) are mated with and received in the third recesses (62).