The present invention relates to a bike having an energy recovery device, comprising: a driving wheel coupled to a rear wheel driving shaft pulley of the bike such that, when the rear wheel of the bike rotates, the same rotates together; a wire configured such that, when the bike driver operates a wire pulling means, the same is pulled to the front; a compressor support portion coupled to the rear end of the wire such that, when the wire is pulled, the same makes a hinge movement about a hinge shaft; a rotating wheel rotatably coupled to the compressor support portion and configured such that, when the compressor support portion is pulled to the end by the wire, the outer peripheral surface of the rotating wheel contacts the outer peripheral surface of the driving wheel by means of the hinge movement of the compressor support portion and rotates together by means of friction with the driving wheel and, when the wire pulling force is released, contact with the driving wheel is released; a compressor comprising a cylinder, which is coupled to the compressor support portion, a piston, which moves in the forward/backward direction inside the cylinder, and a connecting rod, the rear end of which is coupled to the piston such that the same penetrates a front hole of the cylinder and protrudes to the front; and a connecting cam configured to rotate about a rotating wheel shaft, which is coupled to the rotating wheel, and rotatably coupled to the front end of the connecting rod at a distance from the rotating wheel shaft such that, when rotating together with the rotating wheel, the part coupled to the connecting rod makes a circular movement, thereby making the connecting rod reciprocate in the forward/backward direction, wherein air that has flown in through an intake opening, which is formed on the rear portion of the cylinder, and which is provided with a check valve, is compressed by the movement of the piston, exits through an exhaust opening formed on the rear portion of the cylinder, and is stored in an air tank through an air hose.

The present invention relates to a bike having an energy recovery device, comprising: a driving wheel coupled to a rear wheel driving shaft pulley of the bike such that, when the rear wheel of the bike rotates, the same rotates together; a wire configured such that, when the bike driver operates a wire pulling means, the same is pulled to the front; a compressor support portion coupled to the rear end of the wire such that, when the wire is pulled, the same makes a hinge movement about a hinge shaft; a rotating wheel rotatably coupled to the compressor support portion and configured such that, when the compressor support portion is pulled to the end by the wire, the outer peripheral surface of the rotating wheel contacts the outer peripheral surface of the driving wheel by means of the hinge movement of the compressor support portion and rotates together by means of friction with the driving wheel and, when the wire pulling force is released, contact with the driving wheel is released; a compressor comprising a cylinder, which is coupled to the compressor support portion, a piston, which moves in the forward/backward direction inside the cylinder, and a connecting rod, the rear end of which is coupled to the piston such that the same penetrates a front hole of the cylinder and protrudes to the front; and a connecting cam configured to rotate about a rotating wheel shaft, which is coupled to the rotating wheel, and rotatably coupled to the front end of the connecting rod at a distance from the rotating wheel shaft such that, when rotating together with the rotating wheel, the part coupled to the connecting rod makes a circular movement, thereby making the connecting rod reciprocate in the forward/backward direction, wherein air that has flown in through an intake opening, which is formed on the rear portion of the cylinder, and which is provided with a check valve, is compressed by the movement of the piston, exits through an exhaust opening formed on the rear portion of the cylinder, and is stored in an air tank through an air hose.

The present invention relates to a bike having an automatic landing wheel apparatus. The bike having the automatic landing wheel apparatus, according to the present invention, comprises: a left landing wheel arm provided on the left side of the bike to vertically move a left landing wheel that is rotatably coupled to the lower end portion thereof; a right landing wheel arm provided on the right side of the bike to vertically move a right landing wheel that is rotatably coupled to the lower end portion thereof; a left driving unit for driving the left landing wheel arm to move the left landing wheel upward and downward; a right driving unit for driving the right landing wheel arm to move the right landing wheel upward and downward; a speed detection unit that detects the speed of the bike; and a controller connected with the speed detection unit, the left driving unit, and the right driving unit to move both or one of the left and right landing wheels upward when the speed detected by the speed detection unit exceeds a set speed and to move both or one of the left and right landing wheels downward when the speed detected by the speed detection unit is lower than or equal to the set speed.

The present invention relates to a bike having an expanded knife ski device. The bike having an expanded knife ski device according to the present invention comprises: a left landing wheel arm provided on the left portion of the bike, a left landing wheel being rotatably coupled to the lower end of the left landing wheel arm such that the left landing wheel can be moved up/down; a right landing wheel arm provided on the right portion of the bike, a right landing wheel being rotatably coupled to the lower end of the right landing wheel arm such that the right landing wheel can be moved up/down; a left driving unit for lifting/lowering the left landing wheel by driving the left landing wheel arm; a right driving unit for lifting/lowering the right landing wheel by driving the right landing wheel arm; a left ski mounting socket coupled to the left landing wheel arm; a right ski mounting socket coupled to the right landing wheel arm; a left insertion member detachably coupled to the left ski mounting socket; a right insertion member detachably coupled to the right ski mounting socket; a left ski leg integrally coupled to the left insertion member so as to extend downwards; a right ski leg integrally coupled to the right insertion member so as to extend downwards; a left bike ski, which is hinge-coupled to the lower end of the left ski leg to be able to make a hinge movement about a left/right horizontal axis, which extends in the forward/backward direction, and which has blades formed on the left and right ends, respectively; and a right bike ski, which is hinge-coupled to the lower end of the right ski leg to be able to make a hinge movement about the left/right horizontal axis, which extends in the forward/backward direction, and which has blades formed on the left and right ends, respectively.

A personal mobility vehicle or scooter includes a least one swivel caster wheel supported at the rear of the scooter. The scooter has a body that includes a deck and a handlebar assembly. The scooter includes at least one front wheel with the deck extending between the at least one front wheel and the at least one swivel wheel. The scooter can also include an angled rear portion supporting a rear swivel caster wheel such that the pivot axis of the swivel wheel is inclined with respect to the top surface of the deck. Embodiments of the scooter also include a swivel braking assembly configured to apply a braking force to the at least one swivel wheel.

A personal mobility vehicle or scooter includes a least one swivel caster wheel supported at the rear of the scooter. The scooter has a body that includes a deck and a handlebar assembly. The scooter includes at least one front wheel with the deck extending between the at least one front wheel and the at least one swivel wheel. The scooter can also include an angled rear portion supporting a rear swivel caster wheel such that the pivot axis of the swivel wheel is inclined with respect to the top surface of the deck. Embodiments of the scooter also include a swivel braking assembly configured to apply a braking force to the at least one swivel wheel.

A hydraulic apparatus and a control method for a hydraulic apparatus that can improve the accuracy with which the pressure of a brake fluid is controlled while suppressing calculation loads on a control system are provided.

When performing an n-th (n2) opening and closing operation of a regulating valve in a preset period, the control system determines the holding time of an opening and closing state in the n-th opening and closing operation of the regulating valve based on the pressure value of a wheel cylinder in the n-th opening and closing operation of the regulating valve and the target pressure value of the wheel cylinder in an m-th (m<n) opening and closing operation in the period and performs the n-th opening and closing operation of the regulating valve based on the holding time.

A motorcycle includes: a front end subassembly including a fork, a suspension support, a shaft, an axle, and a wheel, wherein the suspension support is coupled to the fork, wherein the shaft is rigid, rectilinear, and extends from the suspension support such that the shaft is (1) parallel to the fork and (2) transverse to the axle, wherein the wheel rotates about the axle; and a seat subassembly including a passenger seat, a gas tank, and a passage, wherein the gas tank is positioned between the passenger seat and the passage, wherein the shaft extends through the passage and thereby solely couples the front end subassembly to the seat subassembly such that the front end subassembly is able to steer the seat subassembly.

The invention is directed to an inertial sensor attachment structure including: a floating bracket which is fixed to a vehicle body frame via a vibration absorbing member; an inertial sensor attached to a first attachment surface of the floating bracket; and an ABS unit attached to a second attachment surface of the floating bracket.

The invention is directed to an inertial sensor attachment structure including: a floating bracket which is fixed to a vehicle body frame via a vibration absorbing member; an inertial sensor attached to a first attachment surface of the floating bracket; and an ABS unit attached to a second attachment surface of the floating bracket.