Abstract: There is provided a stair-climbing vehicle for transporting a wheelchair with a person sitting on. The vehicle comprise a crawler device including a pair of endless belt crawlers disposed on opposite sides of the vehicle; a vehicle body including a driving motor for driving the crawler device to enabling the stair-climbing vehicle to climb up or down a stairway; a load-carrying platform for mounting a wheelchair, said load-carrying platform being provided above the vehicle body capable of pivoting in vertical direction about one end thereof. The load-carrying platform is provided with a inclination sensor. The inclination sensor includes a first inclination sensing element and a second inclination sensing element, each inclination sensing element is a tubular member containing a flowable electrically conductive material and a pair of electrically conductive terminals.

Abstract: A transporter main body has a pair of front wheels and a pair of rear wheels, each of which is adapted to contact with a step of an escalator, a resilient member connected to the bottom of the transporter main body, a mounting structure for mounting a wheelchair, and an extending/retracting device connected with one end of the mounting structure for pivoting the mounting structure in vertical direction. After a wheelchair is mounted on the mounting structure, the wheels allow the transporter main body to be wheeled on the escalator. The resilient member grips the steps of the escalator to allow the wheelchair to ascend or descend with the escalator.

Abstract: There is provided a transporter for patient's emergency escape, comprising: a transporter main body including a main body frame structure; a pair of crawler devices disposed on opposite sides of the transporter main body, each crawler device having a ground contacting surface extending for at least two steps of a stairway; a load-carrying frame structure provided above the transporter main body, said load-carrying frame structure being adapted to serve as a chair for carrying a person; a pair of tandem wheel structures each having a pair of ground contacting wheels arranged in the longitudinal direction of the transporter main body, said pair of tandem wheel structures being provided on opposite sides of the transporter main body near the rear ends of the crawler devices; a single tandem wheel structure having a pair of ground contacting wheels arranged in the longitudinal direction of the transporter main body, said single tandem wheel structure bing provided on the bottom of the transporter main body at a s

Abstract: A stair-climbing crawler transporter having a pair of belt supporting units contacting with an inner surface of the belt crawler at a ground contacting section between driving wheels and grounding wheels on both sides, and a jack connected to a bent connecting portion of the belt supporting unit. The belt supporting units are straightly supported by extending a piston rod of the jack on the way of stairs and are bent to form an inverted "V" by retracting the piston rod of the jack when the substantially intermediate portion of the ground contacting section contacts with a corner of the top step of stairs. Thus, the stair-climbing crawler transporter can smoothly ascend and descend stairs without tilting largely.

Abstract: A stair-climbing wheelchair carrier, comprising a carrier portion comprising a pair of endless belt crawlers, and a handle rotatably mounted on the carrier portion. A guide body is provided to mount a wheelchair and secured to the handle so as to be rotated together with the handle. An electric screw jack is provided between the carrier portion and the guide body for holding the guide body at a desired position.

Abstract: A stair-climbing wheelchair carrier, comprising a carrier portion comprising a pair of endless belt crawlers, and a handle portion rotatably and detachably provided on the carrier. The handle portion is adapted to be rotated between an operating position and a wheelchair engaging position. The endless belt crawler has an oblique overhand portion which has a height higher than a usual height of a step of stair. A guide body is provided to mount a wheelchair secured to the handle portion so as to be rotated together with the handle portion to the operating position.

Abstract: A carrier for rescuing patients having a frame having a pair of lower horizontal portions and upwardly inclined portions adjacent to the horizontal portions at rear end portions thereof.A pair of front and rear wheels are provided on the frame, and a pair of crawlers engaged with the frame and wheels to be moved on the frame and around the wheels.A seat having a handle is provided on the frame. A brake such as a centrifugal brake is provided for slowing the rotation of either of said front and rear wheels and for keeping the rotation speed in a constant speed.Travelling wheels are rotatably provided on the frame for moving the carrier on a flat surface.

Abstract: A hand truck has a load supporting frame having a handle, and a load supporting platform provided on a lower portion of the load supporting frame. A pair of main wheels are provided on a lower portion of the load supporting frame, and an auxiliary frame is pivotally mounted on a lower portion of the load supporting frame. A pair of auxiliary wheels are provided on ends of the auxiliary frame. An extensible cylinder device is provided between the load supporting frame and the auxiliary frame so as to change the angle there-between.

Abstract: A carrier for rescuing patients having a frame having a pair of lower horizontal portions and upwardly inclined portions adjacent to the horizontal portions at rear end portions thereof.A pair of front and rear wheels are provided on the frame, and a pair of crawlers engaged with the frame and wheels to be moved on the frame and around the wheels.A seat having a handle is provided on the frame. A brake such as a centrifugal brake is provided for slowing the rotation of either of said front and rear wheels and for keeping the rotation speed in a constant speed.Travelling wheels are rotatably provided on the frame for moving the carrier on a flat surface.

Abstract: A stair-climbing wheelchair carrier has a frame body, a pair of rail frames formed in a lower portion of the frame body and a pair of endless belt crawlers engaged with the wheels provided on the frame body and with the rail frames. A travelling wheel mechanism is provided on each of the rail frames at a rear portion thereof. The travelling wheel mechanism comprises a lever rotatably mounted on the rail frame, a pair of travelling wheels provided on both ends of the lever, and a spring for maintaining said travelling wheels in a position parallel with the grounding surface of the crawlers. Both the travelling wheels are so disposed that contact points with the ground are at lower positions than the grounding surface of the crawlers.

Abstract: A stair climbing wheelchair carrier having a carrier portion comprising a pair of endless belt crawlers, and a handle portion rotatably and detachably provided on the carrier. The handle portion is adapted to be rotated between an operating position and a wheelchair engaging position. The endless belt crawler has an oblique overhang portion which has a height higher than a usual height of a step of a staircase. The upper portion of endless belt crawlers are maintained by idlers in substantially horizontal position except the oblique overhang portion so that the wheelchair may be moved on the carrier portion and may be engaged with the handle portion at the wheelchair engaging position of the handle portion. The wheelchair is mounted on the carrier portion by rotating the handle portion to the operating position.

Abstract: An apparatus for supporting loads in a cart which can ascend the stairway having a load receiving device which is adapted for moving in the longitudinal direction of the cart whereby center of the gravity of the load may be moved.