Abstract: A handlebar shock absorbing system for bicycles, utilizing a pair of side plates attached to a handlebar mounting bracket with rotational movement of a handlebar against a torsional spring. Where the handlebar can be adjustable for torsional spring force and/or for rotational travel and positioning of handlebar grips, either forward tilting, level or rearward tilting.

Abstract: A handlebar shock absorbing system for bicycles, utilizing a pair of side plates attached to a handlebar mounting bracket with rotational movement of a handlebar against a torsional spring. Where the handlebar can be adjustable for torsional spring force and/or for rotational travel and positioning of handlebar grips, either forward tilting, level or rearward tilting.

Abstract: A quick clamping type vice in which a chuck and a spring are disposed in a main base seat. The chuck is substantially U-shaped and an inner side of the bottom of the chuck is formed with a semicircular thread facing upward. A cover board is disposed on the upper side of the chuck and locked with the chuck to form an integral body. The spring is disposed right under the chuck. The thread rod passes through the main base seat and ride on the bottom of the chuck. The spring pushed the chuck upward to make the thread of the chuck engaged with the thread rod. When the cover board is depressed, the chuck is vertically moved downward and disengaged from the thread rod. At this time, the thread rod is liberated and can be quickly slided. When releasing the cover board, the spring makes the thread of the chuck again engaged with the thread rod. Accordingly, the clamping and loosening operation of the vice can be quickly performed.

Abstract: The working bench has a bench face marked with parallel and equally spaced scales as checker. Each intersection point is formed with a through hole for fixing the alignment or the work piece so as to facilitate the cutting operation. The bench face is further formed with a dividing disc and a ruler with metric and British scales. The cutting rail alignment includes an engaging board, a clamp, a rail slat, a rail seat, lifting shafts and a rail seat support rod. The engaging board having a rotary shaft at one end for fitting into a central through hole of the dividing disc for selecting suitable direction. The clamp serves to clamp a free end of the engaging board so as to stably locate the engaging board by the selected direction. The width from the inner side of the saw blade of the circular saw to outer edge of the base of the circular saw is first measured and then the rail slat is fixed on the rail seat by the width.

Abstract: A working bench with quick clamping type cramp device including a bench face disposed with a semicircular angle scale having a cursor and formed with multiple through holes, and a cramp device selectively fixed in the through holes of the bench face according to the size of the work piece. The cramp device includes a main base, an engaging seat opposite thereto and a quick movable clamping block positioned therebetween. A thread rod is connected with the main base and the clamping block. A ratchet crank is disposed on the thread rod. The end of the thread rod is engaged with a one-way ratchet restricting block, whereby the main base and the engaging seat are first locked in the through holes of the bench face according to the shape of the work piece and then the clamping block is quickly moved to lean against the work piece and then the ratchet crank is swung to tightly clamp the work piece.

Abstract: A convenient and effective cutter for a cable, a plastic pipe or the like is provided. The cutter includes a base rotatably receiving therein a screw rod having a screw portion and a driving end, an immovable blade having a first curved portion having a first curved knife-edge, and a movable blade having a second curved portion having a second inner curved knife-edge and an outer toothed surface capable of engaging with the screw portion. When the driving end is rotated, the two knife-edges can be set in a relative motion to cut a work piece contained between the curved portions.