667 results about "Stair climbing" patented technology

An apparatus for climbing and descending stairs or other obstacles has three flexibly connected sections and a pair of crawler belt systems on opposite sides of the unit. Each of the crawler belt systems comprised of three crawler belts are driven by one of a pair of motors that directly drives a pinion that engages two of the crawler belts, one of which then drives the last crawler belt through another pinion. The stair-climbing apparatus also includes a mounting platform for coupling a carrier device such as a wheelchair or a box. In order to provide cushioning and stability for movements from a horizontal surface to an inclined surface and vice versa, shock absorbers are provided between the three sections. A linear actuator is also provided to provide stabilization as well as the ability to raise and lower both the stair-climbing crawler unit as well as the wheelchair, providing three modes of operation including manually wheel driven mode, motor wheel driven mode, and motor crawler driven mode.

A simulated stair climbing-type exercise apparatus is provided having a frame, a resistance member, a transmission, a drive belt, a right pedal assembly, a left pedal assembly and a track mounted to the frame to provide a user with a vertically reciprocating exercise movement. The right pedal assembly, operating independently of the left pedal assembly and having a set of rollers engaged with the track, oscillates between an upper position at rest and a lower position under the weight of the user. The left pedal assembly, operating independently of the right pedal assembly and having a set of rollers engaged with the track, oscillates between an upper position at rest and a lower position under the weight of the user. The pedal assemblies remain parallel to a support surface throughout their entire range of motion, as the pedal assemblies travel from their upper position to their lower position.

An exercising device includes left and right linking units each having a swing link pivotally mounted on a front support of a frame, a crank link coupling a crank arm to the swing link, and a pedal link connected to a lower end of the swing link, and left and right foot engaging pedals each mounted on a rear linkage end of the pedal link to be movable along an elliptical path with rotation of the crank arms. A sloping ramp member has an inclined surface to guide the foot engaging pedals to simulate stair climbing during the elliptical movement of the foot engaging pedals through left and right rollable anti-friction members mounted under the foot engaging pedals and rollably engaged with the inclined surface.

A wheeled vehicle comprising a power-driven spider assembly for ascending and descending stairs. The vehicle includes an angular position sensor providing input to a controller operable to control a servo-motor to effectively lock the position of the spider relative to the frame, regardless of the hand truck's spatial orientation relative to a vertical plane, or any balancing of the hand truck. The angular position sensor provides input to the controller, which is programmed with predefined angular zones of instability, and causes the controller to accelerate rotation of the spiders through those zones when the wheeled vehicle is in the descent mode, to avoid instability of the hand truck. A hand truck may include a removable basket and/or a pivotable platform usable to transport loads.

The invention relates to an electric stair climbing wheel chair which comprises a chair, armrests, front wheels, rear wheels and a composite chassis assembly, wherein a traveling output shaft of a power box is connected with the front wheels, and an obstacle crossing stair climbing output shaft is connected with a rear shaft gearbox; the rear shaft gearbox drives belt wheels of an obstacle crossing crawler belt, and a turning frame of the rear wheels is installed on a rear wheel shaft by a shaft sleeve; an accessory crawler belt frame is articulated with a crawler belt frame, and the accessory crawler belt frame is movably connected with the power box by a front connecting rod; the accessory crawler belt frame is connected with the turning frame of the rear wheels by a chain wheel; one end of an electric push rod is connected to a frame, and the other end drives the rear wheels to turn by a posture change mechanism; a carrying frame, the frame and one end of a rear connecting rod are coaxially fixed on a support shaft, luniform positioning blocks at both ends of the support shaft are matched with luniform buckled rings at the end parts of the crawler belt frames, and the other end of the rear connecting rod is articulated with the crawler belt frames. The invention has functions of traveling on the flat ground, crossing an obstacle and a ditch, climbing stairs up and down, and the like and has the advantages of compact structure, high automation degree, stable working, safe use and small size.

The invention relates to a fire-fighting robot facing a complex ground environment. The fire-fighting robot includes a fire-fighting robot device, a controlling table, a fire-fighting water monitor, afire detection assembly, a flame automatic targeting assembly, a water belt automatic shedding assembly, a self-sprinkler assembly and an environmental parameter collection module. The movement performance and safety in a complex ground fire-fighting environment can be ensured or improved; the loading capacity of the fire-fighting robot is improved; when dragging a fire fighting water hose in theback, the resistance capacity to tension, the obstacle climbing capacity, the stair climbing capacity and the capacity of passing an uneven unilateral bridge are improved; the fact that the fire-fighting robot can also move when the flame burns the fire-fighting robot body or a caterpillar band is ensured; the automatic shedding assembly of the fire-fighting water monitor connection mouth is improved so that the success self-preservation rate when the robot retreats is improved; the device of the fire-fighting robot of automatic searching for the flame and automatic controlling of collimationof the fire-fighting water monitor is added; so that fire-fighting efficiency and the degree of automation of the fire-fighting robot are improved.

The invention relates to an anti-explosion fire reconnaissance firefighting robot which comprises an anti-explosion fire reconnaissance firefighting robot movable base plate, a manipulation control box, an anti-explosion fire water monitor, an anti-explosion reconnaissance assembly, an anti-explosion road condition shooting assembly, an anti-explosion fire hose falling-off assembly and an anti-explosion self-spraying cooling assembly. The movement and safe properties of the fire reconnaissance firefighting robot under the environments of the complex ground and severe disasters are improved; the anti-explosion capacity and the waterproof property of the fire reconnaissance firefighting robot are improved; the loading capacity of the fire reconnaissance firefighting robot is improved; and the tensile capacity, the obstacle crossing ability, the stair climbing capacity and the capacity of passing of a 'unilateral bridge' with the left portion and the right portion being different in height during dragging of a fire hose from the rear portion are improved. It is ensured that when flames burn a fire reconnaissance firefighting robot body or a track, the fire reconnaissance firefightingrobot can still move; and the success self-protection rate during robot withdrawing is increased, the automation degree of the robot is increased, the application range of the fire reconnaissance firefighting robot is enlarged, and the practicability of the fire reconnaissance firefighting robot is improved.

A platform wheeled apparatus that incorporates an intelligent wheel configuration for each wheel in which each wheel can dynamically change its radius to negotiate various obstacles. The intelligent wheel has a rotational hub and support disc that carries a series of arcuately spaced extendable, weight bearing radial spoke mechanisms that can be controllably extended and retracted in response to the anticipated terrain surface over which the wheel is to travel. The hub of the intelligent wheel carries a microcontroller for a set of obstacle proximity sensors, force and position sensors and an appropriate electrical power supply for operation of the spokes and control components.

The invention relates to a stair climbing wheel chair, which comprises a wheel chair bottom frame, a chair, planet wheels, universal wheels, a motive power source and a control system, wherein the chair is arranged on the wheel chair bottom frame, the planet wheels comprise a planet wheel frame and planet wheel small wheels arranged on the planet wheel frame, the two planet wheels are arranged atthe front part of the wheel chair bottom frame through a planet wheel main shaft, the number of the universal wheels are two, the two universal wheels are arranged at the back part of the wheel chairbottom frame, the motive power source is arranged under the chair, the position of the control system is suitable for operators to conveniently operate, and the control system can control the planet wheels to generate the actions of advancing on the ground and climbing or going down stairs at different moments. The stair climbing wheel chair has the advantages that the stability is good, the safety is high, the time and the labor are saved, and the stair climbing wheel chair is convenient for various user groups with action inconvenience to be used.

A wheeled vehicle comprising a power-driven spider assembly for ascending and descending stairs. The vehicle includes an angular position sensor providing input to a controller operable to control a servo-motor to effectively lock the position of the spider relative to the frame, regardless of the hand truck's spatial orientation relative to a vertical plane, or any balancing of the hand truck. The angular position sensor provides input to the controller, which is programmed with predefined angular zones of instability, and causes the controller to accelerate rotation of the spiders through those zones when the wheeled vehicle is in the descent mode, to avoid instability of the hand truck. A hand truck may include a removable basket and/or a pivotable platform usable to transport loads.

A treadmill type exercise machine having an endless belt for simulating walking up a hill is provided. The exercise machine uses low impact walking motion, which is a favored exercise method while combining the extra effort of climbing without using the same muscle groups as a stair climbing exercise device. The treadmill is an improvement over level treadmills and inclined treadmills. The treadmill uses a cycle of 5 stages to accomplish the exercise. In the first stage the treadmill endless belt is flat, in the second stage the endless belt is moved into an inclined position, in the third stage the endless belt is raised while inclined to provide for simulated hill climbing while a person is walking on the endless belt. In the fourth stage the endless belt is leveled at a raised height. In the fifth stage the endless belt is lowered to the initial position.

A therapeutic device, such as an exercise device, includes the principles of osteogenic repair by incorporating a loading mechanism into the exercise device. By doing so, the therapeutic device provides an increased osteogenic effect, thereby enhancing the benefits of the therapy. As an example, a exercise device includes a support surface for supporting all or part of the bodily tissue of an individual using the device. A linear or rotary loading mechanism associated with the frame or a rotational element of the exercise device drives the support surface at a selected load and frequency, thereby inducing mechanical loading of bodily tissue adjacent to the support surface sufficiently to facilitate the growth, development, strengthening, and/or healing of bone tissue. The loading mechanism may be incorporated into any exercise device, including standard exercise devices such as rowing machines, stair climbing machines, elliptical trainers, bicycles, cross-country ski trainers, treadmills, or weight trainers.

The invention discloses a technology and method of an intelligent stair climbing vehicle. The technologies such as sensors and push-pull rods are used, and a computer control method is used for realizing a vehicle body going up and down stairs. In addition to a controlled object, that is, the vehicle body, the intelligent stair climbing vehicle is mainly composed of a sensing part, a control partand an executing part. The sensing part is composed of a ranging sensor, a pressure sensor and the like. The control part is composed of a data collector, an embedded type computer, software and the like. The executing part is composed of an advance and retreat system and a lifting system. The advance and retreat system consists of eight power wheels, a controller and the like. The lifting systemconsists of four or eight electric push-pull rods, a controller and the like. (Figure 1) The intelligent stair climbing vehicle senses the external environment and own state in real time through the sensors and transmits the information to the computer. Based on the information, the computer controls the up and down movement of the electric push-pull rods and the forward movement of the electric wheels by comparing, analyzing, discriminating and calculating, and therefore being up and down stairs autonomously is realized.

A deforming wheel mechanism for a stair climbing robot comprises three sets of identical arc wheels (1). Each set of arc wheel (1) comprises an arc tire (2), a curve triangular hub (3), an outer disc sliding shaft (4) and an inner disc rotary shaft (5). The arc wheels (1) are in sliding connection with outer wheels (6) through the outer disc sliding shafts (4) and are hinged to inner discs (7) through the inner disc rotary shafts (5). The deforming wheel mechanism further comprises a drive element steering engine (8). The outer edge of each curve triangular hub (3) is provided with an L-shaped overlap edge (3-a) and fixedly connected with the corresponding arc tire (2). Each curve triangular hub (3) is provided with a sliding groove (3-b) and a linkage hole (3-c), wherein the three portions of the curve triangular hub (3) are the same in structure. The two inner discs (7) are each provided with three linkage holes (7-a). The two outer discs (6) are each provided with three linkage holes (6-a).

The modular dolly is a manually operated device facilitating the transport of large, heavy, and/or bulky objects. The dolly includes four smaller wheels and two larger diameter wheel and brake assemblies for temporary installation to the sides of the dolly platform for movement over soft, rough, and/or uneven surfaces. A ramp is removably attachable to the loading end of the platform coplanar therewith to facilitate loading the dolly. The ramp also attaches removably to the opposite anchor end of the platform and normal thereto, to serve as a backstop or anchor for a load placed on the platform. A smaller secondary panel may be installed in the anchor end when the ramp is in use during loading, or may be assembled coplanar to the ramp or platform to lengthen the ramp or platform. The dolly may also be used with a stair-climbing hand truck, forklift, pallet jack, or the like.

A mechanical loading apparatus having an oscillating platform and a signal modulating assembly for modulating an operating signal of the oscillating platform for therapeutically treating damaged tissues, bone fractures, osteopenia, osteoporosis, or other tissue condition, as well as postural instability. The signal modulating assembly modulates the operating signal such that the oscillating platform oscillates at frequency which simulates human activities, such as, walking, jogging, running, stair climbing, etc. The mechanical loading apparatus further includes a control panel having control knobs or buttons for manually selecting a desired activity to be simulated by the mechanical loading apparatus.

The invention discloses a planetary multi-wheel carrier stair climbing vehicle. The revolution of wheel carriers and the rotation of small wheels can be automatically switched, so that the vehicle can stably and quickly climb stairs. Core contents are that driving wheels are required to be planetary multi-wheel carriers, non-driving wheels are required to be multi-wheel carriers, and the driving wheels and the non-driving wheels have the same point number, wherein a small wheel is arranged at each point of each multi-wheel carrier which serves as the wheel; a planetary wheel system is additionally arranged on each planetary multi-wheel carrier; the small wheels comprise one-way wheels and omnidirectional wheels. Each multi-wheel carrier of the planetary multi-wheel carrier stair climbing vehicle comprises three wheels, four wheels, five wheels or six wheels. A dour-wheel dual-power four-driven six-wheel carrier stair climbing vehicle is shown in a drawing, wherein small bevel gears are driven through a differential spider by two motors, large bevel gears are driven by the small bevel gears, and are matched with chain wheels, and four wheels are driven by the chain wheels respectively. According to stair climbing principles, 1, when the vehicle runs on a level road, planetary wheels and the small wheels rotate; 2, when the vehicle climbs the stairs, the small wheels rotate to get close to a step, and then the multi-wheel carriers revolve; 3, when the vehicle goes downstairs, the small wheels rotate until one small wheel is suspended, the wheel carriers revolve, and after the suspended small wheel is landed, the wheel carriers continue revolving.

The invention discloses a stair-climbing wheel chair, comprising a seat chair part, a driving part, a control part and a star wheel part, wherein the driving part is connected with a chair seat frame of the seat chair part; the seat chair part is a foldable seat chair and comprises the chair seat frame, a foldable chair handrail, a foldable pedal bracket, a foldable safety bracket and a detachable chair back frame; the control part comprises a power main switch, a safety bracket control switch, an electromagnet controller, a motor switch and an upstair/downstair switch; the electromagnet controller controls the safety bracket; and a direction wheel is provided with a brake device. The stair-climbing wheel chair has various safety measures for protection, is safe and reliable, mechanical and flexible, is controlled by a control system, and is safe, convenient, foldable, portable, economic and practical.

The invention discloses a quadruped stair climbing robot mechanism which comprises an upper body and four parallel feet connected with the upper body. Each foot comprises a fixed platform, a touch foot and three moving branched chains with the same structure, each fixed platform is fixedly connected with the upper body, each three moving branched chains are axially, symmetrically and uniformly arranged between the corresponding fixed platform and the corresponding touch foot, each moving branched chain comprises a driving arm and a driven arm, one end of each driving arm is connected with a rotation driving device, the other end of each driving arm is connected with one end of the corresponding driven arm through a ball hinge, the other end of each driven arm is fixedly connected with a hollow spherical connector, the rotation driving devices are fixed below the fixed platforms, the three hollow spherical connectors correspondingly connected with the three moving branched chains are concentrically mounted in an embedded manner to form each touch foot, and a spherical pair is formed between each two adjacent hollow spherical connectors. The quadruped stair climbing robot mechanism can automatically walk, walk up and down stairs and carry large load, and the upper body of a robot is constantly kept horizontal when the robot mechanism moves.

A cart having a two-positionable ramp and a wheeled platform portion, for the lateral transportation of console copiers and other major appliances. The ramp has a first tapered end, and a second engagable end, engagable in two positions with the platform portion. When the ramp's second end is engaged horizontally, the first end tilts down for loading, with the tapered end being on the ground. Once loaded, the weight shift causes the ramp's first end to rise. The ramp is removed, and re-engaged vertically to the platform's second end for lateral movement of the load. The cart can be attached to an adapted stair climbing hand truck for upward/downward movement on stairs with the load retained in place on the cart.

An electric wheelchair comprising a movable seat part (1), a body part (2) served as a support for the seat part, a seat adjustment mechanism (3) arranged under the seat part, a bottom part (4), and a crawler moving mechanism (5). The crawler moving mechanism (5) comprises two sets of crawlers arranged respectively at both sides underneath the bottom part, and each of which comprises a front crawler and a rear crawler. The bottom part (4) is comprised of a front portion and a rear portion, which are movably connected with a coupling arrangement and capable of deflection with respect to each other. The crawler moving mechanism (5) further comprises movable stretching crawlers arranged respectively at outside of the front crawler, and fixed stair-climbing crawlers arranged respectively at outside of the rear crawler, wherein a free end of the fixed stair-climbing crawler forms a specific angle relative to the rear crawler.