Affixing device for affixing front cover, back cover and battery unit of a personal digital assistant
AssigneeHigh Tech Computer, Corp.
InventorsYao-Chung Lin, San-Chi Ho
Life of this patent
Estimating the term…
Abstract
An affixing device is used for affixing together a front cover (306a), a back cover (306b), and an extra battery unit (304) of a personal digital assistant (300). The affixing device includes a first screw (204(1)) and a second screw (202(1)), wherein the first screw is used to penetrate through the back cover and to firmly tighten onto the front cover, so that the front cover and the back cover are affixed together. The second screw is used to penetrate through the extra battery unit and firmly tighten on the first screw. As a result, the extra battery unit is affixed to the back cover.
Claims13
An affixing device, which is used to allow a user to affix a front cover, a back cover, and an extra battery unit of a personal digital assistant (PDA), the affixing device comprising:
- a first screw, which is used to penetrate through the back cover and to firmly tighten onto the front cover, so that the front cover and the back cover are affixed together;
- and
- a second screw, which is used to penetrate through the extra battery unit and firmly tighten on the first screw, so that the extra battery unit is securely attached to the back cover.
An affixing device, which is used to provide for a user to affix a front cover, a back cover, and a extra battery unit of a personal digital assistant (PDA), wherein the front cover at least includes an affixing hole, the back cover at least includes a first transpiercing hole, and the extra battery unit at least includes a second transpiercing hole, and the affixing hole, the at least one first transpiercing hole, and the at least one second transpiercing hole correspondingly match to each other in communication, the affixing device comprising:
- a first screw, which comprises:
- a first screw head, having a groove with screw thread, wherein the first screw head is used to provide for the user to exert a force to rotate the first screw;
- and
- a threaded screw rod, coupled with the first screw head, used to penetrate the at first transpiercing hole and to be coupled with the affixing hole for affixing the front cover and the back cover;
- and a second screw, which includes:
- a second screw head, used to provide for the user to exert a force to rotate the second screw;
- and
- a straight rod, coupled with the second screw head, wherein the straight rod includes a screw thread used to coupled with the groove with screw thread, so that the second screw is affixed to the first screw, and the extra battery unit is affixed to the back cover.
An electronic device comprising:
- a front cover including a display therein;
- a back cover attached to the front cover;
- an auxiliary device attached to the back cover;
- a first fastening device connecting the front and back covers together;
- and
- a second fastening device connecting the auxiliary device and the back cover together, wherein the second fastening device engages with the first fastening device.
Dependencies are inferred from the claim text.