219 results about "Mainspring" patented technology

A mainspring used as a power source for a driving mechanism is made of an amorphous metal sheet, and has an S-shaped free-exploded shape. The curvature changing point where the curving direction of the free-exploded shape changes is formed on the inner end side of a middle point between the inner end on the winding side and the outer end serving as the other end of the inner end. Because of the high tensile stress and a low Young's modulus, the amorphous metal permits increase in mechanical energy stored in the mainspring.

The present invention relates to compressed gas-operated firearms and more particularly to repeating gas cylinder pistols with conveyer feed of bullets for shooting. The pistol comprises a hollow pistol frame (1) made integral with a grip (3) and a trigger bow (50), a movable barrel (6) with a bullet bore (97), a load (12) and a mainspring (19) disposed on the barrel (6), a valve (57) installed in a gas chamber (110) inside a body (56), a gas cylinder (102) installed inside a rear hollow interior (104) of the grip (3), a magazine (27) installed in a front hollow interior (151) of the grip (3), separated from a rear hollow interior (104) by a partition (150), a striker-and-trigger mechanism installed inside the pistol frame (1) and on the trigger bow (50) and interacting with the movable barrel (6) and the magazine (27) for supplying bullets (246) and portions of gas from the gas cylinder (102) to the bullet bore (97) of the barrel (6), a mechanism for installing the gas cylinder (102), disposed below the gas cylinder (102) in the grip (3). In a hollow interior (4) of the pistol grip (1) a support (5) is installed, which serves as a base for the movable barrel (6) that moves along the support (5) under the action of the striker-and-trigger mechanism. The magazine is equipped with containers (100), each container (100) accommodating one bullet (246), and is installed so that an upper part of the magazine (27), extending above the pistol frame (1), is disposed between the barrel (6) and the valve (57), and the bullet opening (98) provided in a front wall (99) of the magazine (27), through which the bullet (246) under the effect of a portion of gas gets into the bullet bore (97) of the barrel (6), is disposed coaxially with the bullet bore (97), with the valve (57) and the container (100) which assumes such position before each shot. A breech block (2)is installed above the pistol frame (1).

An improved shoe includes an apparatus and system for ventilating inside the shoe and a resilient shoe. External air desirably enters the shoe around the wearer's foot and flows through holes in the sole into aeration chambers. The air circulates to the heel by a suction valve and is controllably directed out to the exterior of the shoe through a one-air air exhaust valve, ventilating the wearer's foot while an individual is walking. The heel is made from a resilient material and has a cavity extending under the entire instep portion of the shoe's upper. Compression springs are placed in the cavity, including a mainspring located at approximately the heelstrike point and two auxiliary springs for stability located forward of the mainspring toward the shoe's toe. The action of the springs is distributed throughout the sole by a resilient layer of softer rubber adjacent the sole to provide for a resilient walking experience.

The invention discloses a safely foldable automatically expanding/collecting umbrella, which comprises a telescopic umbrella middle rod, an expandable umbrella rib device and a ratchet and pawl device, wherein the ratchet and pawl device is arranged in the umbrella head. The spindle of a ratchet is provided with a rope; the ratchet is connected with a clockwork spring; the clockwork spring is tightened when the ratchet rotates counterclockwise, and the ratchet rotates clockwise when the clockwork spring is loosened; and a ratchet spring which is used for driving a pawl to match with the ratchet is arranged in the umbrella head. When the middle rod is pressed in an umbrella closing process, under the braking action of the pawl, the ratchet only can rotate clockwise; and under the action ofthe clockwork spring, the ratchet rotates clockwise to collect the rope, wherein if the middle rod is incautiously released in the clockwise rotation of the ratchet, the rope is tightened but the ratchet cannot rotate counterclockwise, so the rope can fix the middle rod to prevent the middle rod from being sprung off. Therefore, the safely foldable automatic expanding/collecting umbrella has the effect of safety protection.

A mainspring used as a power source for a driving mechanism is made of an amorphous metal sheet, and has an S-shaped free-exploded shape. The curvature changing point, where the curving direction of the free-exploded shape changes is formed on the inner end side of a middle point between the inner end on the winding side and the outer end serving as the other end of the inner end. Because of the high tensile stress and a low Young's modulus, the amorphous metal permits increase in mechanical energy stored in the mainspring.

A scope mount base design which readily accepts onto a preexisting rear sight base without any alteration of the sight base except for the easy removal of the original sight leaf and mainspring. This scope mount invention achieves solid lockup by the use of the appropriate sized threaded support fixtures and scope mount configuration to successfully engage these rear sight slots that originally contained the sight leaf and mainspring, and thus achieve strong lockup of the scope mount to the sight base.

The present invention relates to a linear compressor (100); and more particularly, to a linear compressor (100) provided with three mainsprings (820,840) having a resonance frequency synchronized with an operating frequency, where the resonance frequency can be adjusted without varying initial positions of mainsprings (820,840) although an additional mass member (1000) may be added. The linear compressor (100) comprises: a fixed member, which includes a cylinder (200) for providing a refrigerant compression space; a movable member, which includes a piston (300) for compressing refrigerant inside the cylinder (200), a center portion that coincides with the center of the piston (300), and a support extended in a radial direction the piston (300), and which makes a linear reciprocating motion about the fixed member; a plurality of front mainsprings (820), each of which has one end being supported on a front side of the support of the supporter (320) and the other end being supported on the fixed member, and which are located symmetrically about the center of the piston (300); a single rear mainspring (840) which has one end being supported on a rear side of the supporter (320) and the other end being supported on the fixed member; and a plurality of mass members (1000) coupled to a rear side of the supporter (320), having a predetermined distance from the outer diameter of the rear mainspring (840).

A timepiece having basic timepiece pointers, chronograph information pointers, a mechanical energy storage section, a train wheel, a power generator, and a control section. The basic timepiece pointers are rotated to indicate the standard time. The chronograph information pointers are rotated to indicate chronograph information. The mechanical energy storage section includes a mainspring. The train wheel is disposed between the mechanical energy storage section and the pointers, and transmits energy from the mechanical energy storage section to the pointers. The power generator has a rotating rotor connected to the train wheel, and generates electric power upon receiving the energy from the mechanical energy storage section. The control section is energized by the electric power produced by the power generator, and controls the rotation cycle of the rotor.

A pull exercise training device has a frame body, a reel including a shaft, a rolling wheel, a driver pulley wheel and at least one mainspring, a band connected to the rolling wheel with an end, a load force device including a first axle through a flywheel and a driven pulley wheel, a one way clutch disposed between the first axle and the flywheel, a belt winding around the driver pulley wheel and the driven pulley wheel, a generator set, and a control circuit having a controller electrically connected to a resistor, an armature, and an interface for operation.

A spring brake includes a base, on which a first reel and a second reel are pivoted. A mainspring has opposite ends connected to the first reel and the second reel. A stop device has a pressing portion to press the mainspring when the mainspring is wound on the second reel. Therefore, the pressing portion of the stop device will touch the mainspring when the mainspring is wound on the second reel and give the mainspring a resistance to offset the recovery force of the mainspring.

A storage device comprises a first seconds wheel, engaging with a mainspring, and a second seconds wheel, a setting wheel for connecting these two seconds wheels, a yoke on which said setting wheel is pivotably mounted, the pivot axis of this yoke and that of the second seconds wheel being coaxial, a stop wheel kinematically linked with said first seconds wheel, a finger fixedly connected to said yoke, a storage spring for exerting upon said yoke a force tending to separate said finger from said stop wheel, whereas the force exerted upon said setting wheel by said mainspring serves to press said finger against said stop wheel, so that the latter is wound to the point where a tooth of said stop wheel abuts against said finger.

The invention concerns an oscillating weight (1) for an automatic winding watch, including a power reserve indicator device (100) integrated in said oscillating weight (1) and including means (20) for displaying the power reserve by comparison to complementary display means (30), said display means (20) and complementary display means (30) being integrated in said oscillating weight (1).

Said display means (20) and complementary display means (30) are movably mounted to rotate synchronously, at a given moment, relative to said oscillating weight (1).

The invention also concerns an automatic winding watch including an oscillating weight (1) of this type, whose movements are transmitted to a mainspring of said watch.

To provide a timepiece having a mainspring winding state display apparatus constituted to be able to arrange a rotational center of a winding mark hand at an arbitrary pertinent position in a movement of a timepiece. A movement is provided with a barrel complete, and a speed reducing mechanism cooperatively moved with a barrel gear for reducing a speed of rotation of the barrel gear, that is, a planetary unit. A segment gear is provided to be rotatable based on an output of the planetary unit. A winding mark indicator is rotated based on operation of the segment gear. A mainspring winding state display member displays a state of winding a mainspring based on rotation of the winding mark indicator.

The invention discloses a two-level vibration isolation hydraulic mount comprising an inner core, a limiting cover, an anti-collision cover, a runner assembly and a connecting bolt. A rubber mainspring is arranged on the lower portion of the inner core. The outer side wall of the lower portion of the rubber mainspring is provided with a mainspring outer framework. The lower portion of the limiting cover is installed on the outer side wall of the mainspring outer framework in an interference pressing mode. The top of the limiting cover is installed at the top of the rubber mainspring in a pressing mode. The anti-collision cover covers the top of the limiting cover. A vibration isolation seat is arranged at the bottom of the rubber mainspring. A sealed liquid cavity is formed between the vibration isolation seat and the rubber mainspring and is divided into an upper liquid cavity body and a lower liquid cavity body through the runner assembly. The lower portion of the connecting bolt is arranged in a threaded hole in the upper portion of the inner core. The threaded hole communicates with the upper liquid cavity body through a liquid filling hole. The liquid filling hole forms interference sealing through a steel ball. According to the two-level vibration isolation hydraulic mount, the first level of vibration isolation is conducted on excitation vibration through the rubber mainspring and the runner assembly, the second level of vibration isolation is conducted through a vibration isolation spring on the vibration isolation seat after attenuation, and thus vibration energy transmitted onto a vehicle frame is lowered to the minimum.

A mechanical timepiece has a power source comprised of a mainspring for undergoing rewinding movement to generate a rotational force. A front train wheel undergoes rotation in accordance with a rotational force generated during rewinding movement of the mainspring. An escapement/speed-control device controls rotation of the front train wheel. The escapement/speed-control device has a balance with a hairspring for undergoing alternately repeating rotational movement in left and right directions. An escape wheel and pinion undergoes rotation in accordance with rotation of the front train wheel. A pallet fork controls rotation of the escape wheel and pinion in accordance with rotational movement of the balance. A switch mechanism outputs an ON signal when a rotation angle of the balance reaches a predetermined threshold angle or greater, outputs an OFF signal when the rotation angle of the balance does not exceed the predetermined threshold angle. A rotation angle control mechanism supresses rotation of the balance when the switch mechanism outputs an ON signal.