228 results about "Leg moving" patented technology

A self centering delivery catheter is provided for delivering a filter into a vessel in a centered manner which aids in the retrieval of the filter. The delivery catheter generally comprises an outer sheath and a cannula disposed inside the outer sheath and axially translatable relative thereto. A set of centering legs are attached to the cannula. The centering legs are operable between a first retracted position and a second extended position, the centering legs moving radially away from the cannula as the centering legs move from the retracted position to the extended position. The relative position of the outer sheath and cannula control the operation of the centering legs. A control wire is disposed inside the cannula and is axially translatable relative thereto. Axial translation of the control wire operates a release mechanism to disengage the filter for delivering the filter into the vessel.

A paving machine which is configured to move in a paving direction for spreading, leveling and finishing concrete into a form having a generally upwardly exposed, finished concrete surface and terminating in lateral concrete sides. The paving machine has a main frame, including a center module, bolsters laterally movably connected to respective lateral sides of the center module for changing a spacing between the bolsters, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column secured to the swing leg proximate a free end thereof. A worm gear drive between the jacking column and the crawler track permits rotational movements of the crawler track and the jacking column about an upright axis. A hinge bracket is interposed between each swing leg and an associated surface of the bolsters and includes a fixed, upright pivot shaft that pivotally engages the swing leg to enable pivotal movements of the swing leg about an upright axis in a substantially horizontal plane. The hinge bracket further includes a pivot pin that is laterally spaced from and fixed in relation to the pivot shaft. A length-adjustable holder capable of being held at a fixed length has a first end pivotally engaging the pivot pin on the hinge bracket and a second end that pivotally engages the swing leg. The holder permits pivotal motions of the swing leg about the hinge pin when it is in its length-adjustable configuration and prevents substantially any motion of the swing leg when the holder is in its fixed-length configuration. A feedback loop cooperates with angular position transducers and automatically keeps the crawler tracks oriented in the paving direction of the machine when the swing legs move in a horizontal plane relative to a remainder of the paving machine. The paving machine can be reconfigured between its paving orientation and a road transport orientation by activating the crawlers to move the swing legs and the crawlers into a narrowed transport configuration.

A bipod for a firearm, or other equipment utilizing a multiple-leg pod, is provided that features easy, snap-apart and snap-together legs and snap-on and snap-off connection of the bipod to a ball or knob on the firearm or other equipment. The legs are preferably received in bores/holes in the bipod body and, during snapping in and out, the legs move past protrusions that restrict movement of the legs between different lobes of the bores/holes. The ball joint formed between the ball/knob and the main body of the bipod serves as preferably the only connection that moves during use by the shooter. As the shooter swivels, tilts, or pans the gun, the ball/knob attached to the firearm moves in the top socket of the main body of the bipod, with the legs being stationary relative to the main body.

A collapsible chair (10) has a first (110) and second (112) front leg, a rear leg (120), a seat support rod (130), and a backrest is attached to the front legs. The legs and the seat support rod are coupled via cross braces (140, 150) such that the seat support rod pivots in one direction while the rear leg pivots in the opposite direction when the front legs are approximated to each other. Preferred chairs comprise a seat that is tensioned when the front legs move apart, and the seat remains substantially tensioned when the seat supports a person.

A full-body exercise machine. The exercise machine includes a first mechanism that enables a user to selectively apply positive resistance to a first leg and/or a second leg independently or simultaneously. The resistance is applied during pushing and/or pulling motions as the first leg and/or the second leg move in opposite or similar directions relative to the second leg and/or first leg, respectively. A second mechanism selectively applies positive resistance to a first arm and/or a second arm independently or simultaneously, in different or similar directions. The resistance is applied during pushing and/or pulling motions. A third mechanism facilitates abdominal crunches, leg tucks, and/or back hyperextensions while exercising the legs and the arms via the first and second mechanisms. In a specific embodiment, the third mechanism includes a seatback linked to the first and/or second mechanisms so that actuation of the first or second mechanisms causes actuation of the seatback. Mechanical links are connected between the first mechanism, the second mechanism, and the third mechanism via swivel connectors. A stable seat accommodates the user, which facilitates performing simultaneous tasks, such as reading or watching television.

An adjustable bed carriage for supporting a main bed frame above a substantially planar floor. The adjustable bed carriage has a first leg with an upper end slidably attached to a first end of the main bed frame and a second leg with an upper end pivotably attached to a second end of the main bed frame. Each of the first leg and the second leg are pivotably connected to each other at a central pivot located substantially at a midpoint of each, to permit pivoting movement of each of the first leg and the second leg about the central pivot in opposite directions. The pivoting movement of the legs moves the adjustable bed carriage between a fully extended condition and a fully collapsed condition.

A mechanical walker comprises six legs extending from a sphere, the legs organized in a X-Y-Z axial configuration. The sphere and legs support a bearing member. A shell holds the sphere and legs to the bearing member. Movement is accomplished by applying downward force to one of three high legs to walk it over two anchor legs moving the device in the horizontal inclination of the selected high leg. The invention is capable of horizontal movement in six directions offset from each other by sixty degrees. Preferably downward force is applied to the selected high leg using a retractable actuating rod. Slots in the shell, and a groove and prominences in a bottom portion of the actuating rod, prevent the high leg from drifting horizontally. At least three mechanical walkers can support a platform or other conveyance means.

A method of maintaining a machine substantially level with a first surface is disclosed. The method may comprise determining an electronic travel path between a first point and a second point on a second surface, the second surface created by a tool removing a section of the first surface, and adjusting the length of the rear leg to maintain the frame substantially level to the first surface as the rear leg moves along the travel path from the first point to the second point in a forward direction. A machine for planing a road is disclosed that maintains a parallel orientation with the road during operation.

An exemplary electronic device (30) includes a main body (40) and two support legs (43). The main body has two sloping slide portions (415) formed at two adjacent corners thereof. A depth of each sloping slide portion increases from one end to the other end. Each support leg are movably connected to one corresponding sloping slide portion, such that a height of the support leg relative to main body is capable of being changed when the support leg moves relative to the main body.

The invention relates to an ankle fixing device capable of adjusting posture and loading. The ankle fixing device comprises a main frame, a pelma force loading control assembly, a sole rotating retention assembly and a leg moving retention supporting assembly, wherein the pelma force loading control assembly is arranged in the main frame and used for loading force to the pelma and receiving a control signal; the sole rotating retention assembly is connected with the pelma force loading control assembly and used for rotating the pelma and retaining the position of pelma; the leg moving retention supporting assembly is arranged in a straight angle relative to the main frame and used for fixing the positions of legs. Compared with the prior art, the ankle fixing device has the advantages that the structure is simple, the scanning of a CT (Computed Tomography) machine applies, the ankle anatomical parameters can be measured under different postures and different force loading environments, and therefore, the obtained ankle joint anatomical parameters can be calculated and analyzed; the ankle fixing device can also be applied to a common leg retention device and is suitable for people of different sizes.

The invention discloses a landing leg of a concrete pump truck; the supporting end of the basic arm of the landing leg is hinged on the body of the concrete pump truck by a rotating shaft arranged with an angle less than 45 degrees with a horizontal plane; when being folded from a supporting position, the landing leg rotates towards the inner side surrounding the rotating shaft; besides, when the landing leg finally reaches a folding position, the angle between the basic arm of the landing leg and the vertical line of the horizontal plane is less than 80 degrees. In the preferable scheme of the invention, the landing leg can adopt the forms of a single-section landing leg or a multi-section landing leg. The folding position of the landing leg is arranged above the body of the truck; and the landing leg can be arranged by utilizing the upper part space of the body of the truck by proper arrangement. When the landing leg moves from the folding position to the supporting position, the landing leg moves in a plane vertical to the horizontal plane and can not be baffled by a barrier on the horizontal plane; besides, the restriction to the concrete pump truck in a construction field comes from barriers on the horizontal plane; therefore, compared with the swing type landing leg of the prior art, the landing leg of the invention is more flexible for being unfolded. The invention simultaneously provides a concrete pump truck which uses the landing leg.

The invention discloses a pile leg stroke measuring method and device and a hydraulic bolt lifting system, and belongs to the technical field of ocean platform lifting systems. The pile leg stroke measuring method includes the steps of recording the pile leg moving pitch number, detecting the absolute displacement of a lifting oil cylinder, judging the motion of the lifting oil cylinder according to the detected absolute displacement, detecting the states of an upper bolt and a lower bolt, when the conditions that the motion of the lifting oil cylinder is the extending motion and the state of the upper bolt is that the upper bolt extends into a bolt hole of a pile leg and the conditions that the motion of the lifting oil cylinder is the retraction motion and the state of the lower bolt is that the lower bolt extends into the bolt hole of the pile leg sequentially occur, adding one to the pile leg pitch number, and calculating the pile leg stroke H according to the formula that H is equal to the sum of delta*h and L. The pile leg stroke measuring device comprises a counter, a displacement sensor, a proximity switch, an induction block and a processor. The hydraulic bolt lifting system comprises the pile leg stroke measuring device. The pile leg stroke can be accurately calculated with the pile leg stroke measuring method, and can be accurately reflected by the pile leg stroke measuring device and the hydraulic bolt lifting system.

An active and passive motion device for therapeutic exercise of upper and lower extremities, in the form of a pedaling device for therapy of leg and associated articulations. The device comprises a combination exercise stand and active/passive pedaling device that enables users with and/or without motor skills to remain generally stationary and seated in a chair or wheel chair and use their legs to actively pedal the device or have their legs moved by the pedaling device. Disclosed in an aspect thereof is an improved ankle strap sandal for use in such therapy. A lift enables the pedaling device to be vertically positioned relative to the wheelchair user when atop the support stand.

The invention particularly relates to a physical teaching aid capable of achieving crossed teaching demonstration and a teaching method. The physical teaching aid organically combines horizontal projectile motion, force balance, and circuits in physics. A rotating motor drives a wire winding rod to rotate. The wire winding rod tightens or loosens a pull rope in order to drive a first track to rotate around a second track. The falling gradient of balls is changed in order to change the initial speed of the horizontal projectile motion and a horizontal projectile trajectory. A demonstration board enhances the display of the horizontal projectile trajectory of the balls. A baffle blocks the balls and the balls fall on a rollback slideway and roll to the left end of the rollback slideway so asto further drive a balance demonstration component to operate. The balls continuously enter the right leg of a piston cylinder to move downward the piston plate of the right leg. Due to force balance, the liquid in the piston cylinder moves and the piston plate of the right leg moves upward so as to realize the visual display of the force balance. The piston plate of the right leg gradually movesup under the influence of the force balance, a lower metal block contacts an upper metal block, and a contact switch is closed so that an indicator light is turned on to achieve the visual display ofthe circuit.

The invention provides a mechanical leg and a wheel type mobile device, which belong to the technical field of computers. The mechanical leg comprises a rack, a telescopic piece, a wheel, a telescopicdriving piece, a walking driving piece, an auxiliary leg and an auxiliary wheel. The telescopic driving piece is located on the side of the rack, the telescopic piece is connected with the telescopicdriving piece, the wheel is connected with the telescopic piece and further connected with the walking driving piece, the first end of the auxiliary leg is connected with the auxiliary wheel, and thesecond end of the auxiliary leg is located on the rack. The telescopic piece is driven by the telescopic driving piece to stretch out and draw back to drive the wheel to jump, the wheel is driven bythe walking driving pieces to move, and when the auxiliary wheel makes contact with the ground, the mechanical leg moves under rolling of the wheel and the auxiliary wheel. By the adoption of the mechanical leg, the mechanical leg can rapidly move on the flat ground and can jump to pass through an obstacle when encountering the obstacle, and therefore the traffic capacity of the mechanical leg canbe improved.

The invention relates to a multimedia platform for artistic designing majors, which comprises a multi-touch tabletop device, a tabletop angle adjusting device, an automatic lifting device, a table leg moving device, a host control device and a micro projection device, wherein the multi-touch tabletop device comprises a multi-touch screen, a liquid crystal display, a control panel, a laser infrared handwriting pen, a wireless microphone and a port interface, and the height of the platform can be automatically adjusted through a sensor according to the height of a user. The platform further comprises an angle adjustable device. By means of operations of the control panel, the user can carry out a certain angle adjustment according to requirements, thereby ensuring the comfort in watching and operation. The table leg of the platform is internally provided with a pulley below, starting and locking of the pulley can be controlled through a main menu of the tabletop touch screen when required. The platform provided by the invention can move randomly in the classroom according to requirements in teaching.

A door brace (10) comprising :an engagement member (12)comprising a bottom flange(14) comprising one face comprising a textured surface (14a) to engage with a door (34); an angled leg (20) comprising a first section(22) hingedly connected at one end to the wall and a second section (23) extending from the first section at a first angle, the leg being movable between a stowed position and an extended position in which the first section makes a second angle, larger than the first angle, to the wall; an engagement foot (26) pivotably mounted on a mounting element (24) having an adjustable length; and a hinge stop configured to prevent the leg moving beyond a maximum extended position. Wherein, in an extended position, the second section of the leg extends at a third angle to the wall equal to the difference between the second and first angles and the engagement foot causes a clamping force to be applied to the door.

The invention provides a lower limb rehabilitation robot. The robot comprises a rack, a lifting weight reduction mechanism, a mechanical leg moving mechanism, a mechanical leg movement mechanism, a treadmill and a treadmill lifting mechanism; the rack comprises a rack bottom frame, supporting columns arranged at one end of the rack, supporting crossbars disposed between the supporting columns, anda supporting vertical rod disposed in the middle of the supporting crossbars, wherein the bottom of the supporting vertical rod is fixed to a horizontal frame of the rack bottom frame; the treadmillis disposed in the rack bottom frame; the treadmill lifting mechanism is arranged on a bottom plate of the treadmill; the lifting weight reduction mechanism is arranged on the sides of the supportingcolumns; the mechanical leg moving mechanism is arranged on the side of the middle supporting crossbar, and the two ends of the lifting weight reduction mechanism are fixed to the supporting columns;the mechanical leg movement mechanism is arranged on a mechanical leg mounting plate of the mechanical leg moving mechanism. The robot can effectively adjust the leg length of mechanical legs and canbe adjusted according to the body width of a patient to make gait simulation more accurate, the structure is safe and small, and the overall height is reduced to the maximum extent.

A support mechanism for supporting an object, such as a table, has at least four legs (5-8) and an interconnection means (4) connecting the legs. Each leg has at least a beam portion (5a-8a) with an inner (proximal) end and an outer (distal) end. The beam portion of each leg is connected to the interconnection means by a respective pivot (9) having a pivot axis. The pivot is located between the inner and outer ends of the beam portion. Each respective pair of adjacent legs has a protrusion (or lever or balance portion) (11-14), each fixed to one leg of said pair of adjacent legs and extending from that one leg to act on the other leg of said pair of adjacent legs whereby a support reaction force is transmitted between the pair of adjacent legs at a point on the other leg between the pivot and the outer end of the beam portion of that other leg. Said point is on the opposite side of the pivot axis of the one leg to the outer end of the beam portion of that one leg. In use, the outer end of the beam portion of one leg moves in an upwards direction and the outer end of the beam portion of the other leg of the adjacent pair of legs moves in a downwards direction. Feet (10) can be replaced, or the beam portions (5a-8a) can be extended, by downwards extending portions (5b,6b,7b and 8b) connected to the outer ends of the beam portion of each leg.

A self-elevating offshore structure supports a deck for production operations at sea in the absence of an elevating hull. A non-buoyant deck is supported by braces and truss legs above wave action. The legs move in relation to the legs and the braces, elevating the deck and the braces supporting the deck. The offshore structure is transported to a deployment site by a buoyant vessel and then released from the vessel once the legs are embedded into the sea bottom.

The invention discloses a walking machine, belonging to the field of fitness equipment. The walking machine is mainly composed of a bracket (1), a rotating shaft (2), a foot rest brackets (3), two foot rests (4) and handrails (5). The length direction line of the foot rest, namely a tiptoe directing line, is parallel to a centre line (6) of the rotating shaft, thus two legs of an exerciser swing towards left and right directions of a body; muscles inside and outside a thigh can be exercised when the two legs oppositely move, thus the walking machine is easier to be used compared with a split device; and the muscles at waist can be exercised when the two legs move in the same direction. If the walking machine with a optimization mode of the invention is integrated with a traditional walking machine into a whole, namely a double block-out device (7) capable of rotating the foot rest is arranged between the center of the foot rests and the connection position of the brackets of the foot rests so that the integrated walking machine becomes one walking machine capable of switching movement forms, and has functions of exercising the muscles of interior and exterior sides and front and back sides of the thigh, waist and abdominal.