The invention relates to a device for converting a linear motion into a rotary motion, wherein the device comprises a cylindrical pile rack, with teeth axially arranged around the entire pile throughout its longitudinal axis, and at least one gearbox comprising four gear wheels rotatably arranged around their own axis of rotation perpendicular to the centre axis of the pile rack and engaging in the pile of a first plane, the gear wheels having arcuate teeth and adapted to the radius of the pile and wherein the gearbox with the gears is further rotatably arranged around the centre axis of the pile rack so that the gear wheels guide and centre the pile rack as the gearbox moves linearly with respect to the pile rack and/or about the pile rack.

A carrier transmission device comprises a slide rail, a rack and a pair of gears. The slide rail extends along a transmission direction of a carrier to be transmitted and is adapted to slidingly guide the carrier. The rack extends along the transmission direction and is connectable to, or integrally formed on, the carrier. The pair of gears are spaced by a predetermined distance in the transmission direction and are adapted to engage with the rack and drive the carrier to move in the transmission direction on the slide rail.

The present invention relates to a transmission mechanism for abase station antenna, and abase station antenna including the transmission mechanism. The transmission mechanism includes: a worm gear unit, which includes a worm driven by a motor and a worm gear meshed and connected with the worm; at least one gear pair, each gear pair including a small gear and a large gear that mesh with each other, the small gear and the worm gear being mounted on a common first drive shaft so that the small gear and the worm gear rotate synchronously; and at least one connecting rod, each connecting rod including a first rack element fixedly mounted thereon, wherein the large gear of each gear pair is meshed and connected with the first rack element on a corresponding connecting rod so as to axially move the connecting rod via the first rack element when the large gear of each gear pair rotates.

The present invention relates to a transmission mechanism for abase station antenna, and abase station antenna including the transmission mechanism. The transmission mechanism includes: a worm gear unit, which includes a worm driven by a motor and a worm gear meshed and connected with the worm; at least one gear pair, each gear pair including a small gear and a large gear that mesh with each other, the small gear and the worm gear being mounted on a common first drive shaft so that the small gear and the worm gear rotate synchronously; and at least one connecting rod, each connecting rod including a first rack element fixedly mounted thereon, wherein the large gear of each gear pair is meshed and connected with the first rack element on a corresponding connecting rod so as to axially move the connecting rod via the first rack element when the large gear of each gear pair rotates.

A rack is made from a plurality of laminated layers. Each layer defines an alignment feature that allows all of the layers to be affixed to a base plate of an aircraft seat assembly and align the teeth of the rack to within five ten-thousandths of an inch. The rack includes a straight portion and a curved portion such that a pinion gear on the aircraft seat assembly can move the aircraft seat assembly along tracks with straight and curved portions.

A rack is made from a plurality of laminated layers. Each layer defines an alignment feature that allows all of the layers to be affixed to a base plate of an aircraft seat assembly and align the teeth of the rack to within five ten-thousandths of an inch. The rack includes a straight portion and a curved portion such that a pinion gear on the aircraft seat assembly can move the aircraft seat assembly along tracks with straight and curved portions.

The present invention relates to an air conditioner for a vehicle, which can prevent misassembly of doors and prevent damage of gears when one rack gear operates two sliding doors and increase the degree of mounting freedom of actuating means. The air conditioner for a vehicle, which includes an air-conditioning case having a heat exchanger, and a door disposed inside the air-conditioning case and sliding to adjust the degree of opening of an air passageway, includes: shafts having a first gear part geared with gear teeth formed on the door. One or more misassembly preventing parts are formed on the shafts and the first gear part.

The present invention relates to an air conditioner for a vehicle, which can prevent misassembly of doors and prevent damage of gears when one rack gear operates two sliding doors and increase the degree of mounting freedom of actuating means. The air conditioner for a vehicle, which includes an air-conditioning case having a heat exchanger, and a door disposed inside the air-conditioning case and sliding to adjust the degree of opening of an air passageway, includes: shafts having a first gear part geared with gear teeth formed on the door. One or more misassembly preventing parts are formed on the shafts and the first gear part.

Proposed is a portable self-power-generating apparatus which has small size and is capable of charging a battery by realizing self-power generation with high efficiency in emergencies in which normal electricity supply is not available, such as a military operation, a refugee village, a disaster caused by earthquake or the like, an emergency situation on ships, or an outdoor activity, and which can be used in combination with various smart modules.

An actuating device for actuating a contractible element for a bending element of an industrial machine for bending metal elements comprises a lower component and an upper component apt to move relative to each other from a first position to a second position, the actuation device including a connecting plate configured to be connected to the lower component of the contractible element. A rack and pinion gear unit is also set out and includes a pinion having an axis, at least a first rack and a second rack actuated simultaneously by the pinion. The first rack is configured to be fixed to the upper component and the second rack is configured to be coupled to the connecting plate. The pinion is operable in a first direction of rotation to move the first rack and the second rack transverse to the axis in opposite directions. The pinion is operable in a second direction of rotation, contrary to the first one, to move the racks in opposite directions towards a second position.