Abstract: The present invention relates to an illuminance sensing head structure including a housing, a light detector, a positioning member, a first color light filtering plate, a second color light filtering plate, and a diffusion plate. The housing has a top face recessed with a square plate receiving slot receiving the two color light filtering plates. The plate receiving slot has a center recessed with a rectangular receiving chamber for receiving the light detector. One side of the plate receiving slot is formed with a member receiving space for receiving the positioning member. The plate receiving slot has an outer edge provided with multiple rod insertion holes. The diffusion plate has an enclosure, and has a bottom formed with multiple insertion rods each close fit with the rod insertion hole.

Abstract: A rotating device has a turning wheel, a threaded sleeve, and a nut. The turning wheel has a hub having a center hole, a wheel rim, and a plurality of spokes connected to the hub and the wheel rim. The threaded sleeve has a flange and an outer thread. The threaded sleeve is inserted through the center hole of the hub and a through hole of a table plate. The nut engages with the outer thread of the threaded sleeve. An umbrella has a center post inserted through the threaded sleeve.

Abstract: A brake (10) having particular application for a linear motion device (12) includes a channel (82) secured to the base plate (14) in which a body (120) secured to the sliding plate (16) partially extends. A tape seal (112) of the channel (82) extends through a slot (180) formed in the body (120) so that the calipers (15) moveably mounted to the body (120) are located within a hollow interior of the channel (82). The calipers (152) include cylindrical carriers (154) slideably received in cross bores (130) in the body (120) and are biased to a disengaged position by a spring (164) sandwiched between a snap ring (162) in the cross bore (130) and the carrier (152). A diametric groove (156) is formed on the inner axial end of the carrier (154) and slideably receives a side (140) of an actuator element (138) which extends in a non-axial direction.

Abstract: A socket on a PCB has a plurality of apertures. The apertures each have a stop formed on an inner wall, two recesses respectively defined beside the stop, and a rib formed on the stop. A plurality of connecting strips is respectively inserted in the apertures. The connecting strips each have an upright portion formed with two opposed first walls, a second wall extended between the first walls, and an opening. Two protrusions are respectively formed on the two first walls and received in the recesses. A lateral part is formed at the bottom of the upright portion and blocked by the rib. Each first wall includes a body, a head and a neck. The necks are twisted to define an outward taper from the second wall to the opening.

Abstract: A hot melt glue gun including a housing, a heating chamber defined in the housing for heating a solid glue stick to its melting point, a sleeve for holding a portion of the solid glue stick outside the heating chamber, and an insulating member for prohibiting heat transfer from the heating chamber to the sleeve. The insulating member keeps the sleeve at a temperature below the melting point of the solid glue stick, thereby preventing melting of the portion of the solid glue stick outside the heating chamber.

Abstract: A ratcheting tool includes a handle and a head with a compartment. A drive member includes a first end extended beyond the compartment, a second end extended beyond the compartment, and a gear wheel formed between the first end and the second end. The gear wheel is rotatably mounted in the compartment and includes a toothed outer periphery. A pawl is mounted in the compartment and includes a toothed side facing the gear wheel teeth. The toothed side of the pawl includes a first teeth portion having a first center of curvature and a second teeth portion having a second center of curvature located at a position different from the first center of curvature. A ring is mounted in the compartment and around the first end of the drive member. The ring is operably connected to the pawl such that the ring and the pawl are pivotable about a rotational axis of the gear wheel and that the pawl is movable in a radial direction relative to the ring.

Abstract: A wrench includes a handle and a head extended from the handle. The handle comprises a compartment for rotatably receiving a switch member and a cavity having a first end communicated with the compartment and a second end communicated with a hole of the head. A positioning device cooperates with two positioning grooves in the compartment of the handle for retaining the switch member in one of two positions corresponding to two opposite ratcheting directions of the wrench. A biasing device cooperates with a pawl in the cavity of the handle in response to the position of the switch member to thereby bias the pawl to be selectively engaged with a drive member rotatably received in the hole of the head.

Abstract: A reversible ratchet-type wrench includes a handle and a head extended from the handle. A web defined between the handle and the head includes a cavity communicated with a hole of the head and a receiving hole communicated with the cavity. An inner periphery defining the receiving hole includes a first positioning notch and a second positioning notch. A pawl is mounted in the cavity and includes a first side with teeth for meshing with teeth of a drive member rotatably mounted in the hole of the head. A switch member includes a turn-piece outside the receiving hole of the web for manual operation. The switch member further includes a positioning section extending from the turn-piece and a switching section extending from the positioning section. The positioning section is rotatably received in the receiving hole of the web and has a positioning member retained in one of the first positioning notch and the second positioning notch of the receiving hole of the web.

Abstract: A self-illuminating pedal assembly comprises a pedal axle, a pedal rotatably mounted around the pedal axle, a magnet securely mounted to the pedal axle, and a permanent-magnet coil securely mounted to the pedal to rotate therewith. At least one light-emitting diode is mounted to the pedal. The permanent-magnet coil is electrically connected to the light-emitting diode and surrounds the magnet. When pedaling, the permanent-magnet coil is rotated relative to the magnet to thereby generate an alternating magnetic field to cause illumination of the light-emitting diode.

Abstract: A wooden floor board includes a board body and a connector. The board body has two lengthwise ditches formed in the bottom surface. In a preferred form, each lengthwise ditch has a cone-shaped section formed in the innermost section. The elongate connector has two lengthwise upright insert members at two opposite lengthwise sides to engage one of the two lengthwise ditches of two neighborin board bodies. The connector is laid under two neighboring board bodies en assembling the wooden floor boards into a complete floor of a room. Any board body of the complete floor may easily be pried up with a tool like a screwdriver if it is broken and has to be replaced with a new one.

Abstract: A gearbox structure of a beach cycle includes a gearbox which may transmit a power of an engine to a power shaft and a propeller shaft. A clutch mounted between the change gears of the gearbox can be shifted by a gear shift device into a neutral position, a reverse gear position and a forward gear position. The gear shift device includes a gear lever which rotates a sector shaped gear which rotates a gear shift cam shaft which is formed with a slot for driving a gear shift drive fork which shifts the clutch to the neutral position, the reverse gear position, and the forward gear position. The gearbox is further provided with a force increase gear, and the propeller shaft is additionally provided with a drive gear which meshes with a helical gear of a distance calculator which has a connecting line externally connected to an odometer.

Abstract: A head of a wrench comprises a hole having a center and a radius. The head further includes a compartment communicated with the hole. A wall defining the compartment has a center of curvature and a radius of curvature. A ratio between the radius of curvature of the wall and the radius of the hole is equal to or greater than 0.5, but less than 1. A distance between the center of the hole and the center of curvature of the wall is selected to form a deeper compartment to thereby improve the torque-bearing capacity.

Abstract: A ratchet type ring spanner comprises a handle having a larger cavity for receiving a larger pawl to thereby provide an improved torque-bearing capacity. The pawl is configured to be pressed against a wall defining the cavity of the handle in a manner that the torque is exerted on all of the teeth of the pawl in a more balanced manner to further improve the torque-bearing capacity.

Abstract: A riding machine (10) includes a battery pack positioned as low as possible in the chassis (12) between the front and rear wheels (14, 15) and removable in a horizontal movement direction while supported by the bottom by a pallet jack. A steering system includes steering shafts (58, 76) which are rotatable together while allowing relative pivotable movement therebetween and which are rotatably connected to the spindle (38) of the steerable rear wheels (15) through a jack shaft (44). In one preferred form, the burnishing head of the machine (10) is raised and lowered relative to the floor surface by an electric actuator (104) which pivots a linkage (92) through a connection allowing floating travel. The pressure which the treating member (16) engages the floor surface is controlled in response to the current level of the electric motor (86) which rotates the treating member (16).