110 results about "Tension lines" patented technology

A vehicle occupant protection apparatus for use in a vehicle includes an occupant-protecting expansion part caused to expand in the form of a curtain in the vehicle cabin along windows. The expansion part is attached to the vehicle body at two attachment points positioned forward and rearward of the windows. A tension line that joins the two attachment points is in a position where the expansion part is extended between the two points, and is positioned below the lower edges of the windows.

The invention provides an intelligent circulation anti-icing method which can be applied to two to twelve and more split lead power transmission lines to transmit current. The method can be applied to any icing tension line section of a power transmission line and can accurately judge whether the icing prevention needs to be started or not automatically according to the line icing condition to realize the automation and the intellectualization of the whole anti-icing process. The method comprises the following steps of: mounting a control device; detecting the environmental parameter and judging whether the current environment needs to start the icing prevention or not by the control device; grouping sub-leads of the split lead; and when the anti-icing operation needs to be started, sequentially converging currents of all split leads at the transmitting end of the anti-icing section on each group of sub-leads according to preset interval time by the control device. The invention increases the transmission current of the sub-leads, achieves the aim of icing prevention by joule heat and can realize the automation and the intellectualization of the local or whole anti-icing process without adding an ice thawing power supply and the icing detection on the line and damage the icing condition before the generation of ice.

A method for measuring video deflection of tension line includes erecting fixed bolt and fixed pulley on piers at two sides of bridge, connecting two ends of tension line separately to said bolt and weight to make tension line be tightened, erecting video camera at position to be measured on bridge to let shooting tube right-point to tension line, moving video camera up and down to vary position of fixed light point of laser on tension line in image of video camera, collecting and calculating position of light point in image for obtaining deflection of bridge. The device for realizing said method is also disclosed.

A zipline braking system comprising a zipline cable and a destination supporting member; a rider carrier coupled to the zipline cable for movement towards the destination supporting member, such movement generating kinetic energy; a damper having a posterior end and an anterior end and connected to the destination supporting member at the posterior end; a tension line; a stopping member coupled to the zipline cable and the tension line; and the tension line for transferring the kinetic energy to the damper upon the rider carrier engaging the stopping member in movement to the destination supporting member.

A tension wire pay-off device for a wire rope, the device includes a wire pay-off reel and a wire take-up reel, and wire ropes wound on the pay-off reel and the wire take-up reel respectively, wherein the wire take-up reel winds the wire rope at a certain speed On the driving wheel on it, a primary tension is produced on the wire rope after the pay-off reel, and a secondary tension is generated on the wire rope before the take-up reel; the axle of the pay-off reel is provided with a passing torque Or a primary pay-off power mechanism whose speed controls the primary tension of the wire rope; a secondary pay-off wheel group capable of controlling the secondary tension of the wire rope through the output torque or speed is coiled on the wire rope before the pay-off reel; It effectively solves the problems of large tension and unstable transmission in the wire rope transmission process in the pay-off device. It has the characteristics of simple structure, convenient installation and control, and can make the wire rope transmission run safely under high precision and constant tension state.

A surgical retractor device includes a frame and at least one retracting member configured for being secured to the collapsible frame. The retracting member is formed from a spring-biased rotatable member, a tension line secured at a proximal end to the spring-biased rotatable member, and a tissue securing member disposed at a distal end of the tension line. In certain embodiments, the surgical retractor may be collapsible and delivered laparoscopically to the resection site.

The invention relates to disposable diaper having absorbent cores comprising superabsorbent polymer particles which are immobilized by adhesive. The absorbent core is attached to the backsheet of the disposable diaper only in certain attachment zones to reduce see-through and the formation of tension lines on the backsheet.

In order to solve the difficulty of winding long objects such as wire stably with a simple structure. The wire 1 is sent out at a predetermined speed by the roller 3, the wire reel 8 is rotated by the motor 9, and the wire 1 is wound on the wire reel 8. Set regulator and tension detector 7. Set up the servo loop to keep the tension constant. Determine the variation range of the tension of the thread, and reduce the time constant of the servo loop when the variation of the tension becomes large.

The invention relates to a bridge performance state monitoring system, method and device. The bridge performance state monitoring system comprises: a displacement sensor which is used for being fixedto a measurement point of a measured bridge, enabling a contact to be perpendicular to the horizon and downward, and measuring the downwarping displacement variation of the measurement point relativeto a measurement reference point; a tension line with one end that is fixedly connected with a pier on one side of the measured bridge, and the other end of the tension line is movably connected to apier on the other side of the measured bridge and straightened for providing a measurement reference point of the displacement sensor; a data acquisition module that is electrically connected with thedisplacement sensor and is used for acquiring the downwarping displacement variation; and monitoring equipment that is in communication connection with the data acquisition module, and is used for remotely receiving the downwarping displacement variation, calculating to obtain dynamic deflection data and a live load impact coefficient of the measured bridge according to the downwarping displacement variation, and determining the performance state of the measured bridge according to the dynamic deflection data and the live load impact coefficient. By using the method and system, measurement efficiency is greatly improved.

The invention provides a novel control method for a high aspect-ratio flying wing solar-powered airplane. Through a steering engine, the tension line direction of a vector motor is controlled, the rotating speed of the motor is controlled and the deflection of a control surface is adjusted, so that the flying state of the airplane is controlled; and complicated control system and sensing system are simplified, so as to achieve the function of controlling the airplane. According to the control method, stable control on the high aspect-ratio flying wing solar-powered airplane can be finished; the control system can be simplified; the structure weight can be reduced; the working load of the airplane is improved; and the control reliability of the airplane is increased.

The invention discloses a dual-floating-body four-stand-column semi-semi-submersible fan foundation which comprises two long-strip-shaped floating bodies. Four stand columns are vertically arranged onthe floating bodies in two rows, one ends of at least four braced chain lines are correspondingly connected to the four stand columns, the other ends of the braced chain lines are connected to a seabed respectively, the four stand columns are connected with a platform separately, the platform is of a cylindrical structure and is arranged at the top end, a buoyancy tank and a ballast tank are symmetrically arranged below the platform, heaving plates are arranged among the buoyancy tank, the ballast tank and the platform in parallel at intervals, circular installing through holes are formed inthe heaving plates, the stand columns support the ballast tank, the platform and the buoyancy tank through the heaving plates respectively, one ends of tension lines are connected with the bottom ballast tank, and the other ends extend in the direction parallel to a gravity line to be connected to a seabed. The structural stability of the foundation is improved, and the foundation is simple and practical, and is not likely to be damaged.

A droneboarding system is disclosed. The droneboarding system includes an unmanned aerial vehicle (drone) for pulling a droneboarder riding a board over a surface, a harness, a tow handle and a plurality of tension lines. Each tension line is attached to the drone and to either the tow handle or the harness. The tension lines are configured in a manner that provides mechanical control of the flight path of the drone. A remote power supply is adapted to be carried by the droneboarder. One of the tension line carries an electrical conductor from the remote power supply to the drone. The electrical conductor provides electrical power from the remote power supply to the drone.

In a tension device for a nonskid chain, a winding reel is supported, so that it can rotate about its axis inside the housing and is prestressed in the winding direction and has a gear rim with teeth arranged along its circumference. A tension line that can be retracted into the housing can be connected to the winding reel, such that a ratchet in a first position (A) blocks a rotational movement of the winding reel in the tension direction by engagement of the ratchet in the teeth. Areas free of teeth on the circumference of the gear rim of the winding reel alternate with areas with teeth.

The invention relates to a manufacture method of amorphous alloy oil-immersed distribution transformer which comprises a low-tension line copper-aluminum transition terminal block, an iron core, a high and a low tension coils and a clipper, wherein both the high and the low tension coils have rectangular layered structures, and the conducting material of the high and the low tension coils is metal aluminum. The invention also comprises a rectangular insulating frame arranged in the low tension coil which directly coils surrounding the insulating frame. The manufacture method not only has the feature of low open circuit loss of common amorphous alloy oil-immersed distribution transformers but also is characterized by low material cost and light weight, which reduces effects caused by price rise of copper to cost of oil-immersed distribution transformers, and reduces consumption of copper which is short in supply.