Abstract: A space-saving resilient assembly element is adapted to fix a first object and a second object in place. The resilient assembly element includes an assembly element body and a conical resilient element. The assembly element body has a head, a rod connected to the head, and an assembly portion connected to the rod. The assembly portion connects with the first object. The conical resilient element is disposed around the rod. The conical resilient element has a first end and a second end. The first end abuts against the head, and the second end abuts against the second object. The conical resilient element is compressed and deformed to become tablet-shaped, curved, conical, or layer by layer. Therefore, the space occupied by the resilient assembly element is reduced.

Abstract: A light-guiding tool shank, a handle unit, a light-emitting element and a power allocation unit are assembled together to form a light-emitting fastening tool. The light-guiding tool shank includes a shank body, a light-guiding portion and a fastener fixing head. The shank body has a first and a second end; the light-guiding portion is formed in the shank body to locate between the first and the second end of the shank body; and the fastener fixing head is located at the first end of the shank body and defines a light projecting hole that is communicable with the light-guiding portion. With these arrangements, the light-emitting fastening tool enables a user to quickly sort out a desired fastener and align the same with a predetermined fastener fixing position even in a dark working environment or in the night, so that the fastener can be fixed in increased working efficiency.

Abstract: A grooved rotatably fastening structure includes, in top-to-bottom sequence, a head, a shaft connected to the head, and a fastening portion connected to the shaft. The fastening portion has a first groove and a second groove. The first groove is concavely disposed on a lateral surface of the fastening portion and extends upward from a bottom of the fastening portion. The second groove is concavely disposed on the lateral surface of the fastening portion and extends from the first groove transversely or obliquely. The first groove and the second groove are in communication. The rotatably fastening structure enables users to connect two objects together quickly without compromising the structural strength of the two objects and is applicable to thin objects.

Abstract: A fastening device includes a locating seat for engaging with a first workpiece; a fastening member including sequentially connected stop unit, shank unit and fastening unit, and the fastening unit being configured for fastening to a second workpiece; a reciprocation actuator movably disposed on the locating seat with the shank unit extended through and movably located in the reciprocation actuator and the locating seat, the stop unit abutted on a top of the reciprocation actuator, and the fastening unit movable in a reciprocating motion between an inner side and an outer side the locating seat or outside the locating seat; and an elastic element having an end pressed against the locating seat and another end pressed against the fastening member. With the reciprocation actuator, the fastening member does not shake easily and the fastening unit can be conveniently moved in a reciprocating motion inside and outside the locating seat.

Abstract: A wrench quick release apparatus includes a sleeve, a positioning unit, a wrench unit and an elasticity unit. The sleeve includes a channel and an engaging section for engaging to a first plate. The positioning unit inserts in the channel of the sleeve, and includes one end inserted through the first plate and an opposite end protrudes out from the channel of the sleeve. The wrench unit is pivotally connected to the positioning unit and protrudes out from one end of the sleeve. The elasticity unit includes one end pushed against the positioning unit and an opposite end pushed against the sleeve. Accordingly, the wrench quick release apparatus is first engaged to the first plate through the sleeve and then engaged to or disengaged from a second plate to achieve a steady and quick assembly effect with minimal efforts in a convenient manner.

Abstract: A packaging structure for assembling to a printed circuit board (PCB) comprises a captive screw having a screw head, a threaded shank and a sleeve; and a fixture pressing against the screw head for a part of the threaded shank to expose from a distal end of the sleeve, and clamping the fixture on the sleeve.

Abstract: A light-permeable fixing component includes a fixed body and a receiving channel. The fixed body has a fixing portion disposed on around an outer surface thereof, and the fixing portion can be in the form of a thread, hook engagement bodies, snap-engagement bodies and a column body. The receiving channel is axially extended through a full length of the fixed body to form a light-in opening and a light-out opening at a tail end and a head end of the fixed body, respectively. Light beams emitted from a light source near the tail end can be transferred and guided by the receiving channel from the light-in opening to the light-out opening, so that the light-permeable fixing component is capable of guiding light, emitting light, glittering, decoration and indicating a constant depth.

Abstract: A light-permeable fixing component includes a fixed head portion, a fixed body, a receiving channel, a light-permeable body and a sleeve. The fixed body is connected to the fixed head portion. The fixed body has a fixing portion. The fixing portion is disposed at the fixed body. The fixing portion is a thread, hook engagement bodies or snap-engagement bodies. The receiving channel penetrates the fixed head portion and the fixed body. The light-permeable body is disposed inside the receiving channel. The sleeve is movably connected to the fixed body. Hence, the light-permeable fixing component is illuminated with a light source to thereby be capable of guiding light, emitting light, glittering, decoration and indicating a constant depth.

Abstract: A screw made of a high-strength composite material includes a head with a first end, a second end, and a first containing portion in the head and having an opening at the second end of the head which is made of a first material like plastic, fiber, rubber or silicone; a thread, with a first end, a second end, and a second containing portion in the thread and having an opening at the first end of the thread, and the first end of the thread being coupled to the second end of the head, and the first containing portion of the head and the second containing portion of the thread forming a space, and the thread being made of the first material; and an enhanced post body contained in the first and second containing portions and made of a second material like metal.

Abstract: A snap-engagement module includes a fixing portion, support, extension portion, snap-engagement portion, and prodding portion. A first jointing unit of the fixing portion and a jointing hole of the support are jointed. The extension portion connects to the first jointing unit. A passage is formed inside the fixing portion and the extension portion. The snap-engagement portion is movably disposed at the extension portion. The prodding portion has a controlling unit connected to the prodding unit and exposed from the fixing portion. The prodding unit is movably disposed at the passage to retract or protrude the snap-engagement portion. A jointing module comprises a jointing base and a jointing ring. The jointing base has a second jointing unit, a jointing hole, and a receiving space. The jointing ring is movably confined to the receiving space. The snap-engagement portion snap-engages the jointing ring.

Abstract: An improved fastener includes a fastener body and a blocker. The fastener body has an end functioning as a connecting head, and center of the fastener body forms an axial threaded bore. An end of the axial threaded bore corresponding to the connecting head is formed into a recess surrounded by the connecting head. The blocker is removably fitted in the recess of the fastener body. When the connecting head of the fastener body is extended through a fixing hole on a printed circuit board with the blocker fitted in the recess, solder paste applied over the fixing hole is prevented from entering into the axial threaded bore of the fastener body to interfere with a screw being threaded into the fastener body.

Abstract: A quick assembly apparatus includes a fastening unit, a control unit and an elasticity unit. The fastening unit includes a head section and a fastening section, a through channel connecting the head section and the fastening section, and a notch at the fastening section to form a plurality of elastic fastening elements. The control unit is movably inserted in the through channel, includes a supporting section supporting the elastic fastening elements, a control shaft connected with the supporting section and extending out from the fastening section, and an extension shaft connected with the supporting section and extending towards the head section. The elasticity unit is fitted around the extension shaft of the control unit, and has its one end pushed against the control unit and its another end pushed against the fastening unit. Accordingly, the quick assembly apparatus is capable of quickly and steadily assembling two plates.

Abstract: A floating fastener for mounting to a first object and then fastening into a second object includes a fastening main body having, from top to bottom, sequentially connected handling portion, shank portion and fastening portion; a cap portion having a connecting section connected to the handling portion and a first stop section extended into the cap portion; and a sleeve movably located around the shank portion and having a second stop section movably interfering with the first stop section for the sleeve and the cap portion to movably connect together without separating from each other, a floating displacement limiting section located below the second stop section and horizontally abutted on the first stop section for preventing the sleeve from swaying, and a fixing section formed around a lower end of the sleeve. The floating fastener can possess a degree of floating displacement without having a swaying or inclined sleeve.

Abstract: A torsional quick-connect fastening device includes a housing, a rotatable retainer, and a torsional elastic element. The housing can be a hollow cylinder or other shape. The rotatable retainer is movably received in an inner receiving space of the housing, and has an interconnecting rod with a force-application portion and a retaining section connected to two opposite ends thereof. The torsional elastic element is a coiled torsion spring with two ends fixedly connected to the housing and the rotatable retainer, so as to bring the rotatable retainer to rotate while moving axially. When the housing is attached to a first plate and the rotatable retainer is operated to rotate and extend the retaining section through a second plate, the torsional elastic element automatically turns the retaining section to a position for firmly pressing against the second plate, so that the two plates are quickly and conveniently fastened together.

Abstract: A wrench quick release apparatus includes a sleeve, a positioning unit, a wrench unit and an elasticity unit. The sleeve includes a channel and an engaging section for engaging to a first plate. The positioning unit inserts in the channel of the sleeve, and includes one end inserted through the first plate and an opposite end extends out from the channel of the sleeve. The wrench unit is pivotally connected to the positioning unit and extends out from one end of the sleeve. The elasticity unit includes one end pushed against the positioning unit and an opposite end pushed against the sleeve. Accordingly, the wrench quick release apparatus is first engaged to the first plate through the sleeve and then engaged to or disengaged from a second plate to achieve a steady and quick assembly effect with minimal efforts in a convenient manner.

Abstract: A packaging method for assembling a captive screw to a printed circuit board (PCB) includes the steps of providing a captive screw having a screw head, a threaded shank and a sleeve; pressing a fixture toward the screw head for a part of the threaded shank to exposed from a distal end of the sleeve, and then clamping the fixture on the sleeve; providing a PCB having through holes and a layer of solder provided thereon; using a tool to pick up the fixture and the captive screw and align the threaded shank with one through hole on the PCB; releasing the fixture and the captive screw from the tool for a flange at the distal end of the sleeve to extend into the through hole; heating, melting and then cooling to harden the solder layer, so that the sleeve is fixedly held to the PCB; and removing the fixture.

Abstract: A modular quick assembling apparatus includes a plastic cap, a ferrule and a locking element; the plastic cap has a first penetrating hole, and a first anti-rotating portion, a support portion and a snap portion formed on a sidewall of the first penetrating hole; the ferrule is passed into the first penetrating hole of the plastic cap; the locking element has a head portion and a locking portion coupled to the head portion, and the head portion has a second anti-rotating portion corresponding to the first anti-rotating portion, so that the components can be assembled securely with each other, and the plastic cap, ferrule and locking element can be manufactured separately by an automated machine or manually without adopting the conventional insert molding technique, so as to achieve the effects of facilitating the manufacture, improving the production capacity and lowering the cost.

Abstract: A packaging structure for assembling to a printed circuit board (PCB) comprises a captive screw having a screw head, a threaded shank and a sleeve; and a fixture pressing against the screw head for a part of the threaded shank to expose from a distal end of the sleeve, and clamping the fixture on the sleeve.

Abstract: A quick assembly apparatus includes a fastening unit, a control unit and an elasticity unit. The fastening unit includes a head section and a fastening section, a through channel connecting the head section and the fastening section, and a notch at the fastening section to form a plurality of elastic fastening elements. The control unit is movably inserted in the through channel, includes a supporting section supporting the elastic fastening elements, a control shaft connected with the supporting section and extending out from the fastening section, and an extension shaft connected with the supporting section and extending towards the head section. The elasticity unit is fitted around the extension shaft of the control unit, and has its one end pushed against the control unit and its another end pushed against the fastening unit. Accordingly, the quick assembly apparatus is capable of quickly and steadily assembling two plates.