Abstract: A spring device includes a tubular seat defining a shaft hole therethrough, a shaft, and a torsion spring. The shaft hole has a positioning hole section and a guiding section. The guiding section has a diameter smaller than that of the positioning hole section. The tubular seat further has a keyway that is in spatial communication with the guiding section of the shaft hole. The shaft has a shaft body and a key. The shaft body is extended through the shaft hole and is movable axially relative to the tubular seat between first and second axial positions. The shaft body is rotatable relative to the tubular seat when the shaft body is at the second axial position so as to accumulate a winding force in the torsion spring. The tubular seat further has a key stop that abuts against the key so that the key is offset from the keyway when the shaft body is at the first axial position.

Abstract: A multi-purpose ground sweeping machine includes a housing unit for receiving an impeller and defining an air blowing route and a guiding path between the air blowing route and an outlet. The housing unit has a first intake port disposed forwardly and forming a first flow duct, a second intake port disposed upwardly and rearwardly and forming a second flow duct, and an air-flow passage in communication with the first and second flow ducts. A first valve unit is operated to only permit suction air to be introduced from the first or second intake ports for drawing leaves on the ground surface into the housing unit. A second valve unit is operated to only permit blowing air to eject from an air-flow conduit disposed forwardly of the housing unit or the outlet for blowing away leaves on the ground surface.

Abstract: A drive motor assembly for a vehicle sunshade assembly includes a motor and a stabilizing unit. The motor has a housing, and an axle extending through the housing and having two ends respectively protruding outwardly of the housing. The stabilizing unit is connected to and provides an urging force to one of the ends of the axle in an axial direction thereof toward the housing.

Abstract: A sunshade assembly includes a pair of rails each having an inner wall defining a recess therewithin, a screen unit, and a pair of positioning units. The screen unit includes a roller, and a screen having a fixed end secured to the roller, a free end, and opposite peripheral edge portions. Each positioning unit includes a slide member and a lock member. The slide member is mounted to a respective one of the peripheral edge portions and extends into the recess to be slidably disposed therein. The slide member has an inclined surface positioned in the recess. The lock member is disposed between the inclined surface and the inner wall, and is operable between a locked state where the lock member is clamped between the inclined surface and the inner wall, and a released state where the lock member is loosely held between the inclined surface and the inner wall.

Abstract: A sunshade assembly includes a pair of spaced-apart rails, a roller unit, a screen, and a position-retaining unit. Each rail has opposite front and rear ends, and is formed with a track therealong. The roller unit is spaced apart from the front end, and includes an inner tube member and an outer tube member. The screen has a fixed end secured to the outer tube member, a free end, and opposite peripheral edge portions extending into the tracks. The position-retaining unit includes an annular spool, a rope, and a spiral spring. The rope extends along one of the rails, loops around the rear end, and passes through the track in the rail. The spiral spring is disposed in the spool, and has an inner end connected to the outer tube member and an outer end connected to the spool.

Abstract: A sunshade assembly includes a roller, a pair of rails, and a screen unit. Each rail includes an upper wall, and a lower wall cooperating with the upper wall to define a recess therebetween. A screen unit includes a screen having opposite peripheral edge portions and operable between a wound state and an extended state, and a pair of abutment pieces. Each abutment piece is slidably disposed in the recess, and includes an arcuate first portion fixed to a respective one of the peripheral edge portions of the screen and abutting against the lower wall of the respective rail, and a second portion. The first portion arches downwardly in a normal state, and arches upwardly in an abnormal state caused by pulling of the screen. The second portion abuts against the lower wall in the normal state and against the upper wall in the abnormal state.

Abstract: A wheelbarrow includes a wheelbarrow frame, a wheel, a bracket, and a container. The wheel is mounted rotatably on a front end portion of the wheelbarrow frame. The bracket is mounted rotatably on the front end portion of the wheelbarrow frame. The container is mounted on the bracket so as to be co-rotatable therewith and is supported on the wheelbarrow frame.

Abstract: A sunshade assembly includes a pair of mounting seats, an arcuate rotatable shaft, and a flexible screen body. The rotatable shaft is tubular in shape, defines a curved rotational axis, is coupled rotatably to the mounting seats, and is formed with recesses so as to be rotatable about the curved rotational axis. The flexible screen body is wound on the rotatable shaft. The rotatable shaft is operable to rotate about the curved rotational axis for winding and unwinding the flexible screen body.

Abstract: A sun screen device includes a pair of slide rails, a screen body, and a pair of rods. Each of the slide rails has an end portion. The screen body has lateral ends, and an operating end that interconnects the lateral ends of the screen body and that is movable along the slide rails. The rods are respectively disposed in the slide rails. Each of the rods has an end portion that is coupled to the end portion of the respective one of the slide rails. Each of the lateral ends of the screen body is formed with a loop that is sleeved on a respective one of the rods.

Abstract: A window blind includes a shaft unit and a clutch unit. The shaft unit includes a pair of seat members, a shaft member, a tubular member, and a pushing member. The shaft member is mounted rotatably on the seat members. The tubular member is sleeved rotatably around the shaft member. The pushing member is sleeved securely on the shaft member. The clutch unit serves to connect and disconnect the shaft member and a pair of bobbins. When the shaft member is rotated in a first rotational direction, the clutch unit connects the shaft member and tubular member, thereby resulting in rotation of the tubular member in the first rotational direction. When the shaft member is rotated in a second rotational direction, the clutch unit disconnects the shaft member and the tubular member, and enables the pushing member to drive rotation of the tubular member in the second rotational direction.

Abstract: A sun screen device includes first and second shaft units, first and second flexible screen bodies, and first and second battens. The first flexible screen body is wound on the first shaft unit and has an operating end that is movable to a first unwinding position. The first batten is connected to the operating end of the first flexible screen body, and has an end portion. The second flexible screen body is wound on the second shaft unit and has an operating end that is movable to a second unwinding position. The second batten is connected to the operating end of the second flexible screen body, and has an end portion that interfits with the end portion of the first batten when the first and second flexible screen bodies are respectively disposed at the first and second unwinding positions.

Abstract: A pushcart for carrying and transporting loads includes a main support frame supporting a load-carrying part and having a front end provided with a pair of front wheels and a rear end to which a wheel frame is attached pivotably, a rear wheel rotatably attached to the wheel frame, a power unit disposed on the main support frame for driving the rear wheel, and a handle attached pivotally to the rear end and connected to the wheel frame for steering the rear wheel.

Abstract: A sun screen device includes a pair of slide rails, a screen body, and a pair of rods. Each of the slide rails has an end portion. The screen body has lateral ends, and an operating end that interconnects the lateral ends of the screen body and that is movable along the slide rails. The rods are respectively disposed in the slide rails. Each of the rods has an end portion that is coupled to the end portion of the respective one of the slide rails. Each of the lateral ends of the screen body is formed with a loop that is sleeved on a respective one of the rods.

Abstract: A hanging structure for sunshade device, comprising a hanging unit, an edge strip set, at least an elastic element, and at least a pin-joint element is disclosed. The hanging unit has a hanging member formed at its head and a tail piece formed at its end; the edge strip set has at least one slot; the elastic element is disposed between the edge strip set and the hanging unit; and the pin-joint element adjoins the hanging unit to the slot of edge strip set that allows the hanging unit to swing in the slot. When the sunshade device is folded, the hanging unit forms a first intersection angle with the horizontal line; when the sunshade device is unfolded, the hanging unit forms a second intersection angle with the horizontal line.

Abstract: A sun screen device includes a pair of slide rails and a screen unit. The screen unit includes a screen body, an operating member, and a pair of biasing members. The screen body has a terminating end that is movable along the slide rails. The operating member is connected to the terminating end of the screen body, and includes a pair of sliding elements, each of which is coupled slidably to a respective one of the slide rails. Each of the biasing members is associated with a respective one of the slide rails and a respective one of the sliding elements so as to bias the respective one of the sliding elements to abut slidably against the respective one of the slide rails.

Abstract: A film valve for an air conditioning system is of the type having two spaced-apart coupling ends, and a plurality of vent holes disposed between the coupling ends. The film valve includes a base layer made of glass fiber and having two opposite side surfaces, and two wear-resistant coating layers applied respectively to the side surfaces of the base layer. Each of the coating layers is made of a material that is selected from the group consisting of silicon, polyurethane, and Teflon.

Abstract: A film valve assembly for a heating, ventilation and air conditioning system includes a frame, two roller mechanisms disposed on the frame, and a film valve disposed between the roller mechanisms under tension. A tension unit includes a tension rod having two ends that are connected respectively to first and second supporting seats on the base wall by first and second retaining units. The first retaining unit includes a spring-biased retaining element that is biased to engage a retaining hole in the first supporting seat.

Abstract: A cutting apparatus for a lawn mower includes a base plate that has a side surface which is formed with two guiding blocks and an abutment post. The abutment post is disposed between the guiding blocks. A nylon line has two block-engaging line portions received respectively within slots in the guiding blocks, a curved post-engaging line portion abutting against an annular surface of the post, and two generally straight connecting line portions connecting the block-engaging line portions respectively to the post-engaging line portion. One of the block-engaging line portions forms an acute angle with an adjacent one of the connecting line portions so as to prevent the nylon line from being removed from the guiding blocks by the centrifugal force of the nylon line when the base plate rotates.

Abstract: An electrical gardening tool includes a working piece having a main body, and a seat body with a base seat. The main body includes a coupling strip with actuating and hook ends and a projection that is disposed within the main body, and a side wall with a slot. The base seat has a coupling end surface that is formed with a fixed bar to engage the hook end so as to fix the seat body to the working piece. The actuating end of the coupling strip is rotatable forcibly relative to the main body to turn the projection out of the main body through the slot so as to remove the hook end from the bar, thereby permitting removal of the seat body from the working piece.