33results about How to "Solve easy vibration" patented technology

A tool for metal-cutting machining of a surface of an opening particularly of a valve seat in a cylinder head of an internal combustion engines. The tool has a cutter tip with at least one geometrically defined cutting edge. The cutter tip rests on two supporting regions in the tool which are arranged at an angle α, and an angle-bisecting line runs essentially perpendicularly with respect to the active cutting edge which then is removing chips from the valve seat. A claw holds the cutting tip to the tool end. Coolant and lubricant are supplied through an outlet from the claw.

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.

According to the invention, a whole-surface driven, flat thin loudspeaker that brings about smooth frequency characteristics with split vibration hardly caused is realized, and a voice coil assembly that has high reproduction efficiency and fewer operation failures, and brings about favorable work efficiency in manufacturing and further reduced manufacturing cost, and a loudspeaker using the same are manufactured. The voice coil assembly includes a rectangular voice coil including a rectangular bobbin formed with a rectangular cross section and a rectangular coil bonded to the rectangular bobbin, and a rectangular reinforcing member coupling the plurality of rectangular voice coils to one another in a grid pattern, wherein a portion of inner wall surfaces of the rectangular reinforcing member is bonded to any of outer wall surfaces of the rectangular bobbins of the plurality of rectangular voice coils, and the outer wall surfaces of the rectangular bobbins, to which the inner wall surfaces of the rectangular reinforcing member are not bonded, and portions of the inner wall surfaces of the rectangular reinforcing member, which are not bonded to the outer wall surfaces of the rectangular bobbins define a rectangular space between a pair of the adjacent rectangular voice coils.

A chattering vibration inhibiting mechanism capable of inhibiting chattering vibration of a machine tool without increasing weight nor requiring a time-consuming adjustment work is provided. A box-shaped package body 21 attached to a spindle head 6, a supporting member 22 disposed to bridge between front and rear walls 21a, 21b in the box-shaped package body 21, and a damper 23 composed of an elastic member 27 and a weight 26 supported by the supporting member 22 are provided.

A flap drive system for moving a flap mounted in a movable manner on the body of a piece of furniture has a mechanical actuating unit with an actuating arm that can be linked to the flap, and has an energy accumulator that can apply a force to the actuating arm. The flap drive system also has an electric drive secured to the actuating unit for driving the flap. The electric drive has at least one electric motor and is designed as a self-contained component, such that the electric drive can be secured to the actuating unit even when the actuating unit is already mounted on the body of the piece of furniture.

A shaft for a power impact tool includes a shaft base and a shaft body perpendicularly extending from the center of a first end face of the shaft base. The shaft body has two actuating slots symmetrically formed on the periphery thereof at two sides and provided with a middle part and two distal ends disposed relatively closer to the shaft base than the middle part. The shaft base has a second end face on which at least two recesses are symmetrically formed, and a hole coaxially extending from the center of the second end face toward the inside of the shaft body with a predetermined distance in such a manner that the center axis of the hole is same as the center axis of the shaft body to effectively diminish possible vibration during rotation of the shaft.

A chattering vibration inhibiting mechanism capable of inhibiting chattering vibration of a machine tool without increasing weight nor requiring a time-consuming adjustment work is provided. A box-shaped package body 21 attached to a spindle head 6, a supporting member 22 disposed to bridge between front and rear walls 21a, 21b in the box-shaped package body 21, and a damper 23 composed of an elastic member 27 and a weight 26 supported by the supporting member 22 are provided.

An optical system head of the laser processing machine includes a focusing optical system configured to deflect and condense an incident laser beam so that a target object to be processed is irradiated and a deflecting direction adjusting unit configured to adjust the direction of deflection of the laser beams about at least two axes perpendicular or substantially perpendicular to each other. A nozzle holding head of the laser processing machine includes a cutting nozzle configured to blow a cutting gas at a site of the target object, at which the laser beam is irradiated, and a nozzle position adjusting unit configured to adjust the position of the cutting nozzle in a top plane parallel or substantially parallel to the target object. The optical system head and the nozzle holding head are separately supported by an optical system nozzle support member configured to selectively advance or retract in three axis directions relative to the target object.

The object is to provide a bone-conduction handset, which has its main body (1) sufficiently isolated from a bone-conduction speaker unit (3) so that: the chances that howling and sound leaking may occur are reduced; and, the handset is improved in easiness in use. In the handset, the speaker unit (3) is mounted on the main body (1) through a speaker mounting member (2) made of a vibration-proof material. The mounting member (2) is characterized by comprising a connection portion (6), which is disposed perpendicularly to both the handset body (1) and the speaker unit (3) in a manner such that the main body (1) and the speaker unit (3) have their opposed inner surfaces disposed adjacent to opposite sides of the connection portion (6), whereby the main body (1) is isolated from the speaker unit (3).

A cutting tool (20) capable of cutting or grooving an article with high accuracy independent of the thickness of a cutting disk blade used has a cutting disk blade (22) having a through-hole (21) at its center, an annular rigid plate (23) coaxially fixed to each face of the cutting blade (22), and an annular ultrasonic oscillator (24) having a smaller outer diameter than the rigid plate (23) which is coaxially fixed to an outer face of each rigid plate (23) or to the cutting blade (22) in contact with an inner circumferential edge of each rigid plate (23).

There is provided an engine capable of reducing oil consumption. The engine includes a cylinder head, a cylinder head cover mounted above the cylinder head, a rocker arm covered by the cylinder head cover, and a breather chamber provided inside the cylinder head cover. As a front-rear direction is defined by a longitudinal direction of the cylinder head cover, the breather chamber has a blow-by gas inlet at one side in the front-rear direction, a blow-by gas outlet at another side in the front-rear direction, and an oil discharging guide chamber at an intermediate part in the front-rear direction. The blow-by gas inlet is opened on a bottom wall of the breather chamber, and a peripheral wall of the oil discharging guide chamber is protruded downwardly from the bottom wall of the breather chamber toward between the rocker arm provided at a side of the blow-by gas outlet and the blow-by gas inlet.

A rod-like body made of a rubber material having an outside diameter which is substantially equal to the inside diameter of the guard pipe or an unexpanded resin material having a quality that the resin material expands sufficiently when heated in a paint baking process for the guard pipe is inserted, as a vibration damping material, into the interior of the guard pipe before the pipe is worked. Due to this, since the guard pipe can be made difficult to vibrate without making any substantial changes to the conventional vehicle body structure, the invention is effective in reducing noise generated while a vehicle is running without entraining a remarkable increase in production costs.

A gasket resistant to vibration and noise generation is interposed between a cylinder head and an exhaust manifold of an engine. The gasket includes a gasket main body interposed between a cylinder head and an exhaust manifold of an engine, a base plate affixed to the gasket main body and having a heat shielding portion integral with a base portion and extending to a side of the exhaust manifold, and a reinforcement plate fixed to the heat shielding portion, in which the reinforcement plate is not present at a region of the base portion in contact with the gasket main body, and a reinforcement rib is formed at the region of the base portion in contact with the reinforcement plate and a region of the heat shielding portion in contact with the reinforcement. The base portion is provided with a projected portion projected into a path of introducing secondary air from a side wall of the cylinder head to an exhaust port.

A driving mechanism having a driving unit in which a drive source is connected to a feed screw shaft and a feed nut is in screw engagement with the feed screw shaft and connected to an active element through a sliding body, wherein the active element is moved by being driven by the driving unit. An inner ring of a bail bearing for supporting the feed screw shaft is fixed to the outer periphery of a free end portion of the feed screw shaft, and an outer ring elastic body which supports an outer ring of the ball bearing slidably in the axial direction of the feed screw shaft and which absorbs vibration of the feed screw shaft is disposed at the inner periphery of a tubular portion for containing the ball, bearing at a terminal support portion.

A film package battery 1 has a battery element (20) having a positive electrode, a negative electrode and a separator that are stacked or wound, wherein, at least at 200° C., the separator does not melt or soften and has a heat shrinkage ratio of 3% or less; a film package (10) enclosing the battery element; and a fixing tape (70) fixed to a part of the battery element and fixed to an inner surface of the film package.

A paper sheet multi-feed preventing member 3 being planar includes an outer layer 8 which comes into contact with a paper sheet 5 and an inner layer 9 laminated on the outer layer 8, the inner layer 9 has a type A durometer hardness not less than A5 / S and not more than A60 / S, or an Asker-C hardness not less than C5 and not more than C50, and the outer layer 8 has a rubber hardness higher than that of the inner layer 9.

The invention provides a double crankshaft self-balancing internal combustion engine and a driving unit thereof and belongs to the technical field of internal combustion engine devices. According to the double crankshaft self-balancing internal combustion engine and the driving unit of the double crankshaft self-balancing internal combustion engine, the problem of vibration caused by the fact that a high-mass piston drives a high-mass crankshaft in the prior art is effectively solved. The internal combustion engine comprises the driving unit. The driving unit comprises a pair of identical cylinders and a pair of identical crankshafts, one crankshaft corresponds to the position of one cylinder respectively, pistons are positioned in the cylinders, the crankshafts are provided with shaft necks, the axes of the two crankshafts are parallel and are arranged side by side, a first linkage mechanism which enables the two crankshafts to keep rotating in opposite directions at the same rotating speed and can transmit radial force for the two crankshafts is arranged between the two crankshafts, a transmission mechanism capable of converting linear motion of the pistons into circumferential rotation of the shaft necks is arranged between the shaft necks and the corresponding pistons, and the shaft necks positioned on the two crankshafts are symmetrically distributed. According to the double crankshaft self-balancing internal combustion engine and the driving unit of the double crankshaft self-balancing internal combustion engine, the problem that a single crankshaft in a large internal combustion engine vibrates easily is effectively solved, and the load bearing capability is good.

A transmission actuator unit (131) is fixed on a actuator support plate (105) of a connection box unit (101) through a pair of lock mechanisms (143). A pair of grommets (121), with which lock pins (144) are engaged, are provided at both of a front side and a rear side of the actuator support plate (105). Then, the transmission actuator unit (131) can be selectively mounted on the actuator support plate (105) in either of two attitudes that are reversed 180 degrees according to vehicle types. Since a base plate of the transmission actuator unit (131) is mounted on the actuator support plate (105) settled in a horizontal attitude, rigidity of support of the transmission actuator unit (131) and the actuator support plate (105) is high.

A heat exchanger has a rectangular parallelepiped shape in which refrigerant flows. When sides configuring the heat exchanger having the rectangular parallelepiped shape include a first side, a second side, and a third side, a length of the third side is shortest. A surface surrounded by the first side and the second side is a heat exchange surface of the heat exchanger. A fixing structure for fixing the heat exchanger to a case includes at least one fixing portion disposed on at least one of a surface surrounded by the first side and the third side and a surface surrounded by the second side and the third side. The fixing portion is disposed at a position where a composite vibration mode of not greater than 1000 Hz is minimum.

A transmission actuator unit (131) is fixed on a actuator support plate (105) of a connection box unit (101) through a pair of lock mechanisms (143). A pair of grommets (121), with which lock pins (144) are engaged, are provided at both of a front side and a rear side of the actuator support plate (105). Then, the transmission actuator unit (131) can be selectively mounted on the actuator support plate (105) in either of two attitudes that are reversed 180 degrees according to vehicle types. Since a base plate of the transmission actuator unit (131) is mounted on the actuator support plate (105) settled in a horizontal attitude, rigidity of support of the transmission actuator unit (131) and the actuator support plate (105) is high.

The invention discloses a foldable high-speed scanner convenient to carry outdoors, and relates to the technical field of office supplies. The foldable high-speed scanner comprises a folding box, and a box cover is hinged to the upper portion of the edge of the rear side of a box body; gears are arranged on the upper side and the lower side of the exterior of the connecting rod, and upper racks are symmetrically arranged on the left side and the right side of the gear located on the upper side; lower racks are symmetrically arranged in front of and behind the gear on the lower side; an abutting plate is arranged below the rotating plate; and a spring is arranged in the mounting sleeve. A shot object is centered by operating the first positioning plate and the second positioning plate, the shooting effect is better, hard contact between the high-speed photographic apparatus and a table top is avoided through the damping assembly, the high-speed photographic apparatus is prevented from being damaged due to vibration. Meanwhile, the rotating plate in a working state is supported through cooperation of a protruding strip and an abutting plate, self-rotation of the rotating plate is avoided. the rotating plate in a folded state is fixed by using the clamping piece, so that the rotating plate is prevented from colliding with the box cover and the box body when the high-speed photographic apparatus is carried.

The invention provides a double crankshaft self-balancing internal combustion engine and a driving unit thereof and belongs to the technical field of internal combustion engine devices. According to the double crankshaft self-balancing internal combustion engine and the driving unit of the double crankshaft self-balancing internal combustion engine, the problem of vibration caused by the fact that a high-mass piston drives a high-mass crankshaft in the prior art is effectively solved. The internal combustion engine comprises the driving unit. The driving unit comprises a pair of identical cylinders and a pair of identical crankshafts, one crankshaft corresponds to the position of one cylinder respectively, pistons are positioned in the cylinders, the crankshafts are provided with shaft necks, the axes of the two crankshafts are parallel and are arranged side by side, a first linkage mechanism which enables the two crankshafts to keep rotating in opposite directions at the same rotating speed and can transmit radial force for the two crankshafts is arranged between the two crankshafts, a transmission mechanism capable of converting linear motion of the pistons into circumferential rotation of the shaft necks is arranged between the shaft necks and the corresponding pistons, and the shaft necks positioned on the two crankshafts are symmetrically distributed. According to the double crankshaft self-balancing internal combustion engine and the driving unit of the double crankshaft self-balancing internal combustion engine, the problem that a single crankshaft in a large internal combustion engine vibrates easily is effectively solved, and the load bearing capability is good.

An optical system head of the laser processing machine includes a focusing optical system configured to deflect and condense an incident laser beam so that a target object to be processed is irradiated and a deflecting direction adjusting unit configured to adjust the direction of deflection of the laser beams about at least two axes perpendicular or substantially perpendicular to each other. A nozzle holding head of the laser processing machine includes a cutting nozzle configured to blow a cutting gas at a site of the target object, at which the laser beam is irradiated, and a nozzle position adjusting unit configured to adjust the position of the cutting nozzle in a top plane parallel or substantially parallel to the target object. The optical system head and the nozzle holding head are separately supported by an optical system nozzle support member configured to selectively advance or retract in three axis directions relative to the target object.

There is provided an engine capable of reducing oil consumption. The engine includes a cylinder head, a cylinder head cover mounted above the cylinder head, a rocker arm covered by the cylinder head cover, and a breather chamber provided inside the cylinder head cover. As a front-rear direction is defined by a longitudinal direction of the cylinder head cover, the breather chamber has a blow-by gas inlet at one side in the front-rear direction, a blow-by gas outlet at another side in the front-rear direction, and an oil discharging guide chamber at an intermediate part in the front-rear direction. The blow-by gas inlet is opened on a bottom wall of the breather chamber, and a peripheral wall of the oil discharging guide chamber is protruded downwardly from the bottom wall of the breather chamber toward between the rocker arm provided at a side of the blow-by gas outlet and the blow-by gas inlet.