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Boss assembly having multiple spinning parts, a method of mounting the boss assembly and a display device including the boss assemblyRelated Patent Categories: Expanded, Threaded, Driven, Headed, Tool-deformed, Or Locked-threaded Fastener, Headed Fastener Element With Nut, Washer, Securing Means Or CapBoss assembly having multiple spinning parts, a method of mounting the boss assembly and a display device including the boss assembly description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060280576, Boss assembly having multiple spinning parts, a method of mounting the boss assembly and a display device including the boss assembly. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a boss assembly having multiple spinning parts, a method of mounting the boss assembly and a display device including the boss assembly. More particularly, the present invention relates to a boss assembly having multiple spinning parts, wherein the boss assembly may be coupled to a bracket through a spinning process, the boss assembly configured to reduce stress concentration and increase coupling strength, a method of mounting the boss assembly and a display device including the boss assembly. [0003] 2. Description of the Related Art [0004] Plasma display panels (PDPs) can be easily fabricated in large sizes and their popularity as flat panel display devices is increasing rapidly. PDPs are flat panel display devices in which a plurality of electrodes is formed between two substrates, a discharge gas is filled into a hermetically sealed discharge space between the two substrates, power is applied to the discharge electrodes to excite a patterned photoluminescent layer, e.g., a fluorescent or phosphorescent layer, by ultraviolet light generated in the discharge space, and an image is formed by visible light emitted from the photoluminescent layer. [0005] In PDPs, various constituent elements including a front cabinet and a rear cabinet may be coupled to each other. For example, two elements may be coupled by providing a boss on a bracket that is mounted on one of the two elements, and mounting the other element to the boss using a screw passing through the other element and threaded into a tap formed in the boss. The boss may be fixed to the bracket in various ways including, e.g., through a spinning process. [0006] FIG. 1 illustrates a cross-sectional view of a conventional boss 12 having a single spun portion 13, in which the boss 12 is fixed to a bracket 11 by a spinning process that forms the spun portion 13. In detail, a through-hole is formed in the bracket 11, and a spinning portion, i.e., an undeformed end, of the boss 12 is inserted through the through-hole of the bracket 11 (not illustrated). The portion of the undeformed end of the boss 12 that protrudes past the bracket 11 is deformed and spread out during the spinning process to form the spun portion 13, which is expanded across the opposite side of the bracket 11 and couples the boss 12 to the bracket 11. [0007] Conventionally, the spinning process involves applying a spinning tool to the spinning portion of the boss 12. The spinning tool may apply heat and pressure during the spinning process, and, as a result, the end of the boss 12 protruding past the bracket 11 spreads out to form the spun portion 13. [0008] However, conventionally, the single spinning portion of the boss 12 simply spreads out during the spinning process to be fixedly caught by the bracket 11, and the coupling strength may be poor. Thus, the boss 12 and the bracket 11 may become loose or be easily damaged, e.g., during use or even during a product reliability test. SUMMARY OF THE INVENTION [0009] The present invention is therefore directed to a boss assembly having multiple spinning parts, a method of mounting the boss assembly and a display device including the boss assembly, which substantially overcome one or more of the problems due to the limitations and disadvantages of the related art. [0010] It is therefore a feature of an embodiment of the present invention to provide a boss assembly having multiple spinning parts configured to reduce stress concentration and increase coupling strength when mounted to a bracket. [0011] It is therefore another feature of an embodiment of the present invention to provide a display device including the boss assembly, the, display device exhibiting enhanced structural integrity. [0012] At least one of the above and other features and advantages of the present invention may be realized by providing a boss assembly having multiple spinning parts, the boss assembly configured to be mounted through a through-hole in a bracket that has front and rear sides, the boss assembly including a shank and at least one reinforcing collar disposed on the shank, wherein the shank and the reinforcing collar are configured to pass through the through-hole from the front side of the bracket, such that the shank and the reinforcing collar protrude beyond the rear side of the bracket, and the shank and the reinforcing collar are configured to be spun by a spinning process so as to fix the boss assembly to the bracket. [0013] The shank may include a shank spinning portion and a shank support portion disposed adjacent to the shank spinning portion, the shank support portion having a larger diameter than the shank spinning portion. The shank may further include a tapping portion extending from the surface of the shank support portion and having a smaller diameter than the shank support portion, wherein the tapping portion has a tap formed therein. [0014] The reinforcing collar may include a reinforcing collar spinning portion, the reinforcing collar spinning portion being tubular and defining a cylindrical cavity, and a reinforcing collar support portion disposed adjacent to the reinforcing collar spinning portion, the reinforcing collar support portion having a larger diameter than the reinforcing collar spinning portion. The reinforcing collar support portion may include an inner member that defines an end wall of the cylindrical cavity, and the inner member may have a hole defined therein, an inner diameter of the hole being less than an inner diameter of the cylindrical cavity. [0015] The shank may include a shank spinning portion and a shank support portion disposed adjacent to the shank spinning portion, the shank support portion having a larger diameter than the shank spinning portion, the reinforcing collar may include a reinforcing collar spinning portion and a reinforcing collar support portion disposed adjacent to the reinforcing collar spinning portion, the reinforcing collar support portion having a larger diameter than the reinforcing collar spinning portion, the reinforcing collar spinning portion being tubular and defining a cylindrical cavity, and wherein the shank support portion may be disposed within the cylindrical cavity. The shank spinning portion may extend from the shank support portion within the cylindrical cavity and extends beyond the reinforcing collar spinning portion. The reinforcing collar support portion may include an inner member that defines an end wall of the cylindrical cavity, the inner member may have a hole defined therein, an inner diameter of the hole being less than an inner diameter of the cylindrical cavity, the shank may extend through the hole, and the shank support portion may be disposed against the inner member. [0016] The shank may include a shank spinning portion and a shank support portion disposed adjacent to the shank spinning portion, the shank support portion having a larger diameter than the shank spinning portion, the reinforcing collar may include a reinforcing collar spinning portion and a reinforcing collar support portion disposed adjacent to the reinforcing collar spinning portion, the reinforcing collar support portion having a larger diameter than the reinforcing collar spinning portion, the reinforcing collar spinning portion being tubular and defining a cylindrical cavity, and the cylindrical cavity may be filled by the shank spinning portion, the shank spinning portion having an outer diameter that is substantially equal to an inner diameter of the cylindrical cavity. The reinforcing collar support portion and the shank support portion may be configured to extend parallel to the front side of the bracket, and the reinforcing collar support portion may be configured to be disposed between the front side of the bracket and the shank support portion. [0017] At least one of the above and other features and advantages of the present invention may also be realized by providing display device including a main body having a bracket mounted thereto, and a boss assembly having multiple spun parts fixed through a through-hole in the bracket, the boss assembly including a shank and at least one reinforcing collar disposed on the shank, wherein the shank and the reinforcing collar pass through the through-hole, such that the shank and the reinforcing collar protrude beyond the bracket, and the shank and the reinforcing collar are spun by a spinning process so as to fix the boss assembly to the bracket. The display device may be a plasma display device. [0018] At least one of the above and other features and advantages of the present invention may further be realized by providing a method of mounting a boss assembly having multiple spinning parts to a bracket, the method including providing a bracket having a through-hole therein, providing the boss assembly, the boss assembly including a shank having a reinforcing collar disposed thereon, inserting the reinforcing collar and the shank through the through-hole of the bracket from a front side of the bracket, and performing a spinning process on a spinning portion of the reinforcing collar and a spinning portion of the shank that protrude through the bracket, so as to fix the reinforcing collar and the shank to the bracket. [0019] The spinning process may include a first fixing operation to fix the shank to the reinforcing collar, and a second fixing operation to fix the reinforcing collar and the shank to the bracket. The first and second fixing operations may be performed through a single spinning process. [0020] The reinforcing collar spinning portion may define a cylindrical cavity, the shank spinning portion may be disposed within the cylindrical cavity and extend beyond an end of the cylindrical cavity, the shank spinning portion may have an outer diameter that is smaller than an inner diameter of the cavity, so as to define a cylindrical space between the outer diameter of the shank spinning portion and the inner diameter of the cavity, and the first fixing operation may spin the shank spinning portion to form a first shank spun portion, wherein the first shank spun portion fills the cylindrical space. The first shank spun portion may not extend beyond the end of the cylindrical cavity. [0021] The reinforcing collar spinning portion may define a cylindrical cavity, the shank spinning portion may be disposed within the cylindrical cavity and extend beyond an end of the cylindrical cavity, the shank spinning portion may have an outer diameter that is substantially equal to an inner diameter of the cavity, so as to fill the cavity, and the first fixing operation may spin the shank spinning portion to form an first shank spun portion, wherein the first shank spun portion is disposed beyond an end of the reinforcing collar spinning portion. [0022] A support portion of the reinforcing collar may be disposed against the front side of the bracket. A support portion of the shank may be disposed against a front side of the reinforcing collar support portion, such that the reinforcing collar support portion is disposed between the front side of the bracket and the shank support portion. Continue reading about Boss assembly having multiple spinning parts, a method of mounting the boss assembly and a display device including the boss assembly... Full patent description for Boss assembly having multiple spinning parts, a method of mounting the boss assembly and a display device including the boss assembly Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Boss assembly having multiple spinning parts, a method of mounting the boss assembly and a display device including the boss assembly patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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