Abstract: A screwless fixing clip for disk drive having a fixing clip that realizes fixedly clipping position of disk drives that are installed within a computer case by means of fixing plates. The fixing clip eliminates need for screws, and only utilizes a pressure plate configured on a clip plate to fixedly clasp a folded plate of one end of the fixing plate. A piece configured on an arc-shaped plate of another end of the clip penetrates a catch slot defined in the computer case, and a side of a catch edge configured on a side of the catch slot is fixedly clasped by means of a catch of an inner edge of the piece, thereby rapidly and easily fixedly clipping position of the disk drives that are installed within the computer by means of the fixing plates.

Abstract: A screwless fixing clip for disk drive having a fixing clip that realizes fixedly clipping position of disk drives that are installed within a computer case by means of fixing plates. The fixing clip eliminates need for screws, and only utilizes a pressure plate configured on a clip plate to fixedly clasp a folded plate of one end of the fixing plate. A piece configured on an arc-shaped plate of another end of the clip penetrates a catch slot defined in the computer case, and a side of a catch edge configured on a side of the catch slot is fixedly clasped by means of a catch of an inner edge of the piece, thereby rapidly and easily fixedly clipping position of the disk drives that are installed within the computer by means of the fixing plates.

Abstract: The present invention includes a rotatable device, which is installed underneath a floppy disc rack unit and a hard drive rack unit. The hard drive rack unit is capable of turning by 90 degrees by lifting a handle block of the rotatable device, thus enabling easy installation or replacement of the hard drive rack in a computer casing.

Abstract: The present invention includes a rotatable device, which is installed underneath a floppy disc rack unit and a hard drive rack unit. The hard drive rack unit is capable of turning by 90 degrees by lifting a handle block of the rotatable device, thus enabling easy installation or replacement of the hard drive rack in a computer casing.

Abstract: A side cover is secured to a frame of a computer case by a clamp including a clamping piece and a clamp socket which engage within corresponding holes provided in the frame and side cover to secure the side cover to the frame without requiring conventional fasteners.

Abstract: A computer case with side panel clip fastening configuration utilizing a direct clip fastening method to quickly secure side panels of a computer case to a computer case housing. An inner catch first lodges into a notch defined on the side panel, and subsequently rotated 90° therein to secure its positioning. The configuration further employs a cylindrical positioning socket configured on the clip fasteners to pass through through-holes defined in the side panels and thereupon into securing holes defined in the computer case housing. The side panels and computer case housing are thereby assembled to form a computer case in its entirety.

Abstract: The invention is a device for quickly detaching and reassembling a frontmask of a computer casing including a movable device. The movable device consists of an anchor, a plurality of sliding clips, two wedge-shaped push-heads, a retraction spring, a handle and some other related parts. Two wedge-shaped push-heads are located on an upper side on both ends of the movable device and have a beveled surface. To detach the frontmask of the casing, the beveled surfaces and the wedge-shaped push-heads of the movable device push the anchoring elements outwards, so that the frontmask can quickly be detached from the computer casing.

Abstract: A computer case with side panel clip fastening configuration utilizing a direct clip fastening method to quickly secure side panels of a computer case to a computer case housing. An inner catch first lodges into a notch defined on the side panel, and subsequently rotated 90° therein to secure its positioning. The configuration further employs a cylindrical positioning socket configured on the clip fasteners to pass through through-holes defined in the side panels and thereupon into securing holes defined in the computer case housing. The side panels and computer case housing are thereby assembled to form a computer case in its entirety.

Abstract: The present invention relates to a type of fastener for securing computer case side covers which no longer uses screws or bolts to secure the computer case side covers but attaches these side covers through clamp fasteners onto the computer case.

Abstract: A power fan speed controller is capable of adjusting a fan speed synchronously along with the variation of a load power so as to solve the shortcomings of a conventional, unsteady, not precise enough and temperature-controlled fan speed controller. The structure of the present invention detects a power signal at the power source end and converts the power signal into a voltage signal in direct ratio to the power; the voltage signal is transmitted into a comparator to compare with a reference voltage thereby controlling a transistor connected with the fan.

Abstract: A retaining device for a side cover of a computer casing has a sliding plate movably received beneath the top face of the computer casing and a set of extensions formed on the side cover. The sliding plate has a wedged block formed to detachably engage with distal ends of the extensions. The movement of the sliding plate allows the wedged block to engage with the distal ends of the extensions of the side cover to push away the side cover from the computer casing. Therefore, the side cover is separated from the computer casing readily.

Abstract: A retaining device for a front cover of a computer casing has at least two arms extending out from a back face of the front cover, a shaft pivotally received in the computer casing and having at least two pushes each detachably connected to a corresponding one of the arms and a knob securely formed on the distal end of the shaft. With such an arrangement, the user is able to easily detach the front cover from the computer casing.