摘要:
A cutting depth setting device is provided for a saw machine which includes a base portion having a positioning block protruding therefrom, a drive arm pivotally engaged with the base portion about a pivot axle, a protruding block projecting from the drive arm and located above the positioning block, a threaded hole vertically defined through the protruding block, a circular saw blade rotatably mounted on the drive arm to pivot therewith for cutting a workpiece, a working platform mounted beneath the saw blade for holding the workpiece, the cutting depth setting device including an adjusting bolt threadedly extending through the threaded hole of the protruding block to be displaced vertically relative to the protruding block, a head fixedly mounted on an upperside of the adjusting bolt for rotating the adjusting bolt, a pointer pivotally engaged on an underside of the adjusting bolt to move vertically therewith, a first panel movably mounted on the drive arm and having a flat surface which is located adjacent to the pointer and has a plurality of graduations formed thereon for aligning with the pointer, and a second panel movably mounted on the drive arm and enclosed on the first panel, and a plurality of numerals formed on the second panel for respectively aligning with the plurality of graduations.
摘要:
The improved saw blade suspension device permits adjustment at an angle between (1) 0.degree.-90.degree.; (2) 90.degree.-180.degree.; and (3) 180.degree.-270.degree.. This constitutes a substantial improvement because it permits adjustment according to different directions of the saw blade, and according to each operator who may be left-handed or right-handed. Two clamping sheets are used and only one pin is required for each clamping sheet. The device comprises an upper body and a lower body (1), the upper and lower body having a pair of ears (12), the upper and lower body having at one end a portion (13), holes (14, 15, 16 and 17) located in the front, right side, left side and the rear, a steel pin (11) inserted in the ears (12) through apertures (121, 122). The saw blade (3) is inserted in the holes (14, 17) or holes (15 and 16) and is locked by screws (19), into two holes (18) each of which is located at one end of the body (1). The device also comprises a pair of clamping sheets (2) for clipping the steel pin, each of the clamping sheets having in front a plate (21) with protruberance (22). The plate (21) has a width equal to the distance between the two ears (12), and pin (11) is clipped by said clipping plate (21).
摘要:
A quick-release device for a pneumatic nail gun with a magazine has a base, a pusher plate, a spring and a button. The base has a through hole defined in the top of the base. The pusher plate has a first end that normally extends into the channel of the magazine and a second end. The spring abuts the second end of the pusher plate. The button is moveably mounted in the base and extends out from the through hole. The button abuts the second end of the pusher plate, such that the pusher plate can be pivoted by pressing the exposed button. The finger of the user does not extend into the device. Consequently, the operation of the quick-release device is simplified, and the finger of the user will not be injured during the process of clearing jammed nails.
摘要:
A saw blade mounting structure for curve sawing machines that allows buffer play, includes upper and lower saw blade clamps opposedly arranged in a mirror image at front ends of upper and lower support arms adapted to position both pin type and plain type saw blades. an adjusting seat having a post on an upper side for receiving a compression spring therein and a lower side connected to the upper saw blade clamp. The adjusting seat and compression spring are placed in a recess at the front end of the upper support arms with a threaded section of a rotary shaft passing through an upper portion of the recess to lock into a threaded through hole of the adjusting seat to a certain depth, which is adjustable. The rotary shaft has a portion exposed on the outside and connected to a detachable eccentric locking knob. When mounting a saw blade, the locking knob may be turned to exert an eccentric force on the adjusting seat so that the latter elevates to pull the saw blade tight in an optimum position. Replacement of the saw blade is also very easy. When the saw blade hits against a knob in the wood, the compression spring provides sufficient buffer play to avoid breaking of the saw blade. There is also enough play for the upper and lower saw blade clamps to ensure that the saw blade is always in an optimum vertical position with respect to the work table, thus enhancing sawing precision.
摘要:
A coping saw blade is securely mounted to the upper and lower swinging arms of a coping saw by clamping the upper and lower ends of the blade within slits of positioning devices mounted on front portions of the arms. Both flat blades and blades provided with cross end portions may be clamped by the positioning devices.
摘要:
A receiving device of a wood working machine which has a base and the base has a flange extending horizontally therefrom, two skirt portions and a corner skirt respectively extending vertically from the flange so as to define two recessed portions between the base and the skirt portions and the corner skirt for receiving suitable tools or knives therein, the base having a box disposed to one side thereof for receiving a gauge means therein and having a recess defined therein by two side boards, a vertical board and a bottom, each of the side boards having a slot and the vertical board having two cavities respectively defined therein, a cover slidably moved in the two slots by two sides thereof, each of the sides having a hook-like element and a protrusion extending laterally therefrom, a stop extending downwardly from a front wall portion of the base to partially cover an open end of the slot so as to prevent the cover from being completely removed from the base.