45 results about "Recoil energy" patented technology

A bow, preferably a crossbow, is provided herein. The bow is provided with a recoil energy dissipation system. When applied to a crossbow, the crossbow comprises a stock member including a barrel at a forward portion thereof, the barrel being configured for supporting an arrow for firing of the crossbow. A riser block assembly is provided at a forward end of the barrel, the riser block assembly supporting first and second bow limbs extending outwardly, the first and second bow limbs carrying a bowstring between the outward tips thereof, and extending transversely to the barrel. The stock member further has a trigger mechanism associated therewith selectively to hold and release the bowstring from a cocked position in which the bowstring is drawn in a direction away from the first and second bow limbs to tension the bow limbs. The recoil energy dissipation mechanism includes an associated flexible attachment arm which is secured at one end to the riser block assembly and which extends from the riser block assembly to each bow limb, and an energy-absorbing member which is secured to each flexible arm and is in contact with an associated bow limb, thereby to reduce vibrations and noise without sacrificing significant projectile velocity.

A semi-automatic or automatic rifle comprising a barrel attached to and upper receiver and including a compressible bolt carrier extension system. The compressible bolt carrier extension system includes a bolt carrier, an extension spring, two pins, and a reciprocation bolt carrier extension piece. As a whole, the compressible bolt carrier extension system makes possible the use of elongated upper and lower receivers to be used for chambering long-action or other center fire cartridges for use with AR rifles such as the M-16, and M4 etc., eliminating the need for any buffer or buffer tubes other than those commercially available. A further advantage of the compressible bolt carrier extension system is the reduction of felt recoil as the system fully loads during the recoil stroke as it pushes against the buffer absorbing additional recoil energy. The system can be incorporated into firearms using a variety of cartridges.

A high inertia driver system for a fastening tool having an electric motor that drives a flywheel to contact a driver blade to drive a fastener into a workpiece. The high inertia driver system also has a return system which prevents the unintentional driving of a second fastener. The return system uses a return spring that controls the recoil energy of the driver blade after driving a fastener into a workpiece. The system achieves a long operational life for the fastening tool by increasing the number of return cycles of the driver blade free of a return spring failure.

An improved Barrett anti-armor gun that is modified to function from the open bolt with advanced primer ignition, wherein the forward momentum of the recoiling masses at the moment of firing offset a significant portion of the recoil impulse from firing. The modification reduces the recoil energy absorbed by the shooter.

A recoil pad having a pad in which the elastomer contains a plurality of pockets having one or more pocket characteristics adjustable over the entirety or portions of the pad to achieve recoil pad characteristics which can be incrementally variably matched to the recoil energy characteristics and recoil energy transfer characteristics of a particular target stock.

A spring/rod recoil assembly may be improved with Belleville springs arranged in combinations of nested and inverted stacks that absorb recoil impact energy while providing rebound energy to properly load cartridges from the magazine into the chamber. A firearm assembly may include a cylindrical spring, and guide rod—having stops at both ends—lengthwise situated within the cylindrical spring. The assembly may include a Belleville spring stack captured on the guide rod between a back-end stop and the cylindrical spring, with one or more stacks of nested springs and one or more stacks of inverted springs. The spring stack may be arranged to return some of the recoil energy produced during firing of the firearm, and decelerate slide velocities without damage to the firearm. Each spring has a diameter allowing it to fit within a back chamber where at least the back-end of the guide rod and spring are situated.

A straight line impact absorbing striking tool for impacting an object. The striking tool may have a multi-piece construction, and may be partially filled with a flowable high-density material and/or may include a spring-loaded handle to help absorb impact recoil energy that would otherwise be undesirably transferred to the hand(s) and arm(s) of a user. At least a striking section or striking surface of such a tool may be comprised of a material that will not mar or otherwise damage an impacted target object.

The invention provides a structure proposal of an electric vehicle collision protection high-efficiency energy-absorbing island. The scheme sets up a beam system at the front of the car that can withstand the huge impact of a collision, and combines it with energy-absorbing foam materials to form an efficient energy-absorbing island structure for collision protection. When a car encounters an accidental collision, the beam body system supports the energy-absorbing island to absorb the huge impact kinetic energy of the colliding vehicle. At the cost of the collapse of the foam structure of the energy-absorbing island, it greatly absorbs and consumes the kinetic energy of the opponent's vehicle, protecting the safety of passengers on the own vehicle. At the same time, the beam system can further disperse the greatly reduced recoil of the energy-absorbing island to the battery case, avoiding fire and explosion caused by excessive force and deformation of the battery case, and minimizing collision hazards.

The invention discloses a recoil and counter-recoil two-in-one buffer damping device. During use, a piston recoils, the resistance of a second elastic device is increased, the recoil energy is absorbed, a valve limits the liquid flow speed through a reserved gap between the valve and the piston at the same time, the recoil speed of the piston is decreased, the piston conducts counter recoiling under the effect of the second elastic device after the piston recoils to the limiting position, the valve is forced to move backwards through liquid flow at the moment, the reserved gap is reduced to minimum, the liquid backflow speed is limited, the counter-recoil speed of the piston is decreased, and finally, the piston returns and resets through a first elastic device; and by means of the comprehensive effect of composite springs of the second elastic device and liquid hydraulic oil, the recoil speed of the piston is decreased, the counter-recoil speed of the piston is decreased, and therefore the movement speed of the piston is decreased.

The invention discloses a kick type vibration absorbing method. A kick type vibration absorber is arranged in the transfer position of vibration energy, and enabled to generate kick energy which is the same as and synchronous to the vibration energy to counteract the vibration energy, and therefore, the purpose of vibration absorption is achieved. A direct turn type vibration absorber is mainly composed of a positioning assembly, an upper connecting rod, a lower connecting rod and a buffer spring. A turn-around type vibration absorber is mainly composed of the positioning assembly, the upper connecting rod and the buffer spring; the upper connecting rod is inverted U-shaped; the upper end of the positioning assembly is fixed in the center position of the upper connecting rod. Due to the kick type vibration absorbing method and the kick type vibration absorber, the vibration problem of a vehicle in the running process is solved, the existing vibration absorption field is broken through, a brand new vibration absorption function is achieved, and the comfort and safety in the running process of the vehicle are further improved.

The invention relates to an interaction force measuring device of a human-gun system. The interaction force measuring device comprises a recoil force testing platform, a force sensor and a sensing system signal processor. The recoil force testing platform comprises clamping fixtures, and a spring damping mechanism is arranged between one clamping fixture and a gun. The force sensor is arranged between the recoil force testing platform and a gunstock. The motion force of the gun is collected by the force sensor and sent to the sensing system signal processor. The sensor comprises an X-direction differential capacitor unit assembly and a Y-direction differential capacitor unit assembly. The X-direction differential capacitor unit assembly and the Y-direction differential capacitor unit assembly each comprise two or more capacitor unit modules forming differential motion. The force measuring device is used for tests for analyzing recoil energy, muzzle brake efficiency and other parameters after collecting the recoil force of the gun.

A combined wind turbine set comprises a wind turbine 13 arranged in the front end of a housing 14, an air suction port 15 arranged in the rear end of the housing 14 and connected, through a wind conduit 16, to an air inlet of an air source 17, an air outlet of which is connected to an air intake pipe of a recoil energy wind turbine 18 an air outlet of which is connected to a windmill or a motor 19. The combined wind turbine set is capable of using the external pressure energy, recoil energy of air current and the energy in the flow direction of air current at the same time. During the actual usage, the wind turbine 13 and recoil energy wind turbine 18 can be used for driving a generator for generation. The wind turbine 13 will not consume the mechanical energy of air source, and the recoil energy wind turbine 18 only uses the recoil energy of air current to act, while the mechanical energy from the air source has shorter extension and less local loss, thus the air current through the recoil energy wind turbine can be provided for other pneumatic mechanisms. From the above, the combined wind turbine set is obviously excellent in energy saving.

The invention relates to a spring parallel connection variable-stiffness friction-adjustable buffer. A barrel drives a pull rod to move backward together, the pull rod moves backward relative to an outer sleeve and a friction plate, under the positive pressure of the elastic force of adjusting springs, the sliding friction force is generated between the pull rod and friction blocks, the friction force can dissipate part of the recoil energy in the process of system recoil movement, and the magnitude of the friction force can be controlled by changing the positive pressure of the adjusting springs; meanwhile, parallel connection springs of a system have certain pre-pressure; in the buffering process, the pull rod drives pull rod buckles to move backward; when the pull rod buckles jack outersleeve buckles up, an inner sleeve releases the constraint and moves backward under the action of an inner ring spring; and at this time, the system is in a single spring compression state, and the buffering movement is made to be more stable.