TEH YOR CO, LTD. Patent applications |
Patent application number | Title | Published |
20160138331 | Window Shade and Actuating System Thereof - An actuating system for a window shade includes a suspension member, a casing having a fixed protrusion, a transmission axle disposed through the casing, a rotary drum arranged in the casing and rotationally coupled with the transmission axle, and an impeding part connected with the rotary drum and affixed with an end of the suspension member. The rotary drum is rotatable in a first direction for winding the suspension member, and in a second direction for unwinding the suspension member. The impeding part is movable relative to the rotary drum between a first and a second position, the impeding part when in the first position being movable with the rotary drum past the protrusion in any of the first and second direction, and the impeding part when in the second position being engageable with the protrusion to block rotation of the rotary drum in the second direction. | 05-19-2016 |
20160123071 | Cordless Window Shade and Spring Drive System Thereof - A spring drive system for a cordless window shade includes multiple rotary drums respectively connected with suspension cords, and one or more springs respectively connected with the rotary drums. The rotary drums are operatively connected with each other, so that they can synchronously rotate to wind and unwind the suspension cords. Moreover, each of the rotary drums is connected with an end of one spring. The spring torque can act to sustain a bottom part of the window shade at any desired height, and drive rotation of the rotary drums to wind the suspension cords when the bottom rail is raised upward. | 05-05-2016 |
20160017964 | Window Shade and Its Control Module - A control module of a window shade includes a drive axle affixed with a sleeve, an arrester assembled around the sleeve, a cord drum connected with an operating cord, a clutch operable to couple and decouple the cord drum with respect to the drive axle, and a release unit including a stick that is operatively connected with the arrester. The arrester blocks rotation of the drive axle in a locking state, and has an unlocking state allowing rotation of the drive axle. The operating cord is pulled to drive the cord drum in rotation and turn the clutch to a coupling state, such that the rotation of the cord drum is transmitted through the clutch to drive the drive axle in rotation for raising the shading structure. Moreover, the stick is operable to switch the arrester from to the unlocking state for lowering the shading structure by gravity action. | 01-21-2016 |
20150376944 | Window Shade and Actuating System Thereof - The structures described herein use an actuating system that can selectively switch between a lower and a raise mode of operation by rotating a rod assembly, and use a downward displacement of a pull member to lower and raise the window shade depending on whether its switching state. The actuating systems are simple to operate, allow convenient adjustment of the window shade, and are safe as the pull member has a limited length of extension. | 12-31-2015 |
20150354275 | Window Shade and Actuating System Thereof - The structures described herein use an actuating system that can selectively switch between a lower and a raise mode of operation by rotating a rod assembly, and use a downward displacement of a pull member to lower and raise the window shade depending on whether its switching state. The actuating systems are simple to operate, allow convenient adjustment of the window shade, and are safe as the pull member has a limited length of extension. | 12-10-2015 |
20150191970 | Motorized Window Shade and Method of Operating the Same - A motorized window shade includes a covering structure arranged between a fixed and a movable rail, an electric motor operable to drive displacement of the movable rail relative to the fixed rail, a control interface operable to control operation of the electric motor, and a motor controller respectively connected with the electric motor and the control interface. The control interface includes a first, a second and a third button, the first and second buttons being respectively operable to cause displacement of the movable rail in two opposite directions. The motor controller can record a current position of the movable rail as a limit position of the movable rail in response to a pressure concurrently applied on the third button and one of the first and second buttons. In some embodiments, methods of operating the motorized window shade are also described. | 07-09-2015 |
20150007946 | Window Shade and Actuating System and Operating Method Thereof - An actuating system for a window shade comprises a transmission axle, a spring drive unit operable to urge the transmission axle to rotate in a first direction for raising a shading structure of the window shade, and a control module including an arrester assembled around the transmission axle, and an operating cord operatively connectable with the transmission axle. The arrester has a locking state in which the arrester acts against the spring drive unit to block a rotational displacement of the transmission axle in the first direction, and an unlocking state in which rotation of drive axle is allowed. The operating cord is operable to turn the arrester from the locking state to the unlocking state and to drive rotation of the transmission axle in a second direction opposite to the first direction for lowering the shading structure of the window shade. | 01-08-2015 |
20140311686 | Motorized Window Shade - A motorized window shade includes a head rail, a bottom part suspended from the head rail, and a covering structure arranged between the head rail and the bottom part. An electric motor is arranged in the head rail and is operable to drive a vertical displacement of the bottom part. The window shade further includes a control interface electrically connected with the electric motor, and suspended outward from the head rail. The control interface is operable to control rotation of the electric motor for raising and lowering the bottom part. An elongated tube may further be disposed outside the head rail. The elongated tube has an upper end connected with the head rail, and the control interface is assembled adjacent to a lower end of the elongated tube. | 10-23-2014 |
20130340951 | Window Shade, Its Control Module and Method of Operating the Same - A window shade comprises a head rail, a plurality of slats, a bottom part, suspension cords connected with cord winding units, and a control module. The control module includes first and second drive axles, a sleeve affixed with the first drive axle, a transmission part connected with the second drive axle, an arrester assembled around the first drive axle, and a release unit including an actuator. The first drive axle is operable to control vertical movement of a bottom part, and the second drive axle is operable to adjust an inclination of the slats. The arrester has a locking state in which it blocks a rotational displacement of the first drive axle to keep the bottom part at a desired position, and an unlocking state allowing rotation of the first drive axle so that the bottom part lowers by gravity action. The actuator has a lengthwise axis, and is operable to move along the lengthwise axis from a first position to a second position to turn the arrester from the locking state to the unlocking state, and the actuator when in the first position can drive the second drive axle in rotation. | 12-26-2013 |
20130220561 | Window Shade and Its Control Module - A window shade comprises a head rail, a shading structure, a bottom part, suspension cords connected with cord winding units, and a control module. The control module includes a drive axle assembled with the cord winding units, a sleeve affixed with the drive axle, an arrester assembled around the drive axle, and a release unit. The arrester has a locking state in which the arrester blocks a rotational displacement of the sleeve and the drive axle to keep the bottom part at a desired position, and an unlocking state in which rotation of the sleeve and the drive axle is allowed to lower the bottom part by gravity action. The release unit includes an actuator that is operatively connected with the arrester and has an elongated shape. The actuator can rotate about its lengthwise axis to turn the arrester from the locking to unlocking state. | 08-29-2013 |
20130032300 | Window Shade Having a Resistance Balancing Mechanism - A window shade comprises first and second rails, and a shading structure and a suspension cord connected between the first and second rails. The second rail includes a resistance balancing unit and a cord winding unit to which the suspension cord respectively connects. The resistance balancing unit comprises a housing having an abuttal surface, a pulley pivotally connected with the housing, and a torsion spring. The pulley has a winding portion around which the suspension cord is wrapped, and a shaft portion extending coaxial to the winding portion from a side thereof. The torsion spring is tightly mounted around the shaft portion and has at least one end. The pulley when rotating in one direction drives the end of the torsion spring to push against the abuttal surface of the housing, whereby the torsion spring loosens to allow rotation of the pulley relative to the torsion spring. | 02-07-2013 |