Abstract: The present disclosure discloses a memory access interface device. A clock generation circuit generates reference signals. A transmitter transmits an output command and address signal to a memory device according to the reference signals. A signal training circuit executes a training process in a training mode that includes steps outlined below. A training signal is generated such that the training signal is transmitted as the output command and address signal. The training signal and the data signal generated by the memory device are compared to generate a comparison result indicating whether the data signal matches the training signal. The comparison result is stored. The clock generation circuit is controlled to modify a phase of at least one of the reference signals to be one of a plurality of under-test phases to execute a new loop of the training process until all the under-test phases are trained.

Abstract: A chain assembling-disassembling structure includes an assembling base, a first clamping component, a second clamping component, a penetrating shaft and a driving shaft. The assembling base has a fixing portion and the fixing portion has a concave edge for receiving a bushing of the chain section. And, the assembling base includes a first portion and a second portion vertically formed at two opposite ends thereof for respectively engaging with the first and second clamping components. Here, the first and second clamping components together clamp and restrict the chain. The second clamping component has a tubular shape for being inserted by the penetrating shaft, and then, the driving shaft can further be locked into the second clamping component. By turning the driving shaft, the penetrating shaft can be forced to push out a pin, which is used for jointing the inner and outer link plates of the chain.

Abstract: A bearing puller for holding and disassembling a bearing which is tightly engaged with a machine part includes a fixing portion, a disassembling portion, a binding ring, and a sleeve, wherein the fixing portion has the binding ring sleeved on one end thereof. The sleeve is screwed on the fixing portion to compress the binding ring to reduce an inner diameter thereof, so as to grab and hold the bearing. Furthermore, the disassembling portion which is mounted on the fixing portion can have a displacement relative to the fixing portion to reject against the machine part or can hit the fixing portion to produce a momentum, thereby causing a relative movement between the machine part and the bearing to disassemble the bearing. Therefore, the bearing can be disassembled rapidly without damage, and thus, the reusing possibility of the bearing also can be increased for saving the cost.

Abstract: A chain assembling-disassembling structure includes an assembling base, a first clamping component, a second clamping component, a penetrating shaft and a driving shaft. The assembling base has a fixing portion and the fixing portion has a concave edge for receiving a bushing of the chain section. And, the assembling base includes a first portion and a second portion vertically formed at two opposite ends thereof for respectively engaging with the first and second clamping components. Here, the first and second clamping components together clamp and restrict the chain. The second clamping component has a tubular shape for being inserted by the penetrating shaft, and then, the driving shaft can further be locked into the second clamping component. By turning the driving shaft, the penetrating shaft can be forced to push out a pin, which is used for jointing the inner and outer link plates of the chain.

Abstract: A tool kit for removing decorative plates and trims of vehicles includes a box holding a plurality of tools of different specifications. The tools are made from hard plastics and formed respectively like a plate. The tools have a first end which may be formed in a shape of a curve, sharp end, wedge or shield, and is gradually thinning from the middle portion towards one end to become a first prying portion. The tools have a second end which also may be formed in the shape of a sharp end, square or wedge, and is bent toward one side to become a second prying portion. A user could grasp each of the tools and insert the first or the second prying portion into a slip gap on the edge of various decorative plates and trims of vehicles to remove the decorative plates and trims without damaging the surfaces of the vehicles.

Abstract: The present invention includes a bottom plate having two opposing slots each allows a L-shaped clamping plate sliding therein. The clamping plate has one end vertically extended below the slots and exposed to form a clamping surface and another end extended horizontally in contact with the bottom plate to form a control surface. Two spacers are provided to confine the left and right sides of the control surface. The control surface has an aperture to couple with a lower end of a N-shaped control bar. The control bar has an upper end coupling with a lower end of a rotational rotative cover. The lower end of the rotative cover has a recess on the bottom to house the control bar, and a top portion to be coupled with a T-shaped wrench and driven thereof. Hence the clamping plate may be driven to synchronously clamp a lube filter.

Abstract: A vehicle lube filter unfastening fixture includes a bottom plate which has two opposing slots each allows a L-shaped clamping plate sliding therein. The clamping plate has one end vertically extended below the slots and exposed to form a clamping surface and another end extended horizontally in contact with the bottom plate to form a control surface. Two spacers are provided to confine the left and right sides of the control surface which has an aperture to couple with a lower end of a N-shaped control bar. The control bar has an upper end coupling with a blind cavity formed on the bottom of a top plate which has a recess on the bottom to house the control bar, and a top portion to be coupled with a T-shaped wrench and driven thereof. The clamping plate may be driven to synchronously clamp a lube filter.

Abstract: A tool equipped with a turnable driving head includes a left handle and a right handle to couple with a right driving section and a left driving section therebetween. The left handle and the right handle and the right and the left driving sections are coupled together by a coupling element such that the right and left driving sections may be anchored on the front sides of the left and the right handles at a selected angle to wrench C-shaped snap rings to facilitate operation.

Abstract: A tool equipped with a turnable driving head includes a left handle and a right handle to couple with a right driving section and a left driving section therebetween. The left handle and the right handle and the right and the left driving sections are coupled together by a coupling element such that the right and left driving sections may be anchored on the front sides of the left and the right handles at a selected angle to wrench C-shaped snap rings to facilitate operation.