Class / Patent application number | Description | Number of patent applications / Date published |
359461000 | Roll up screen | 25 |
20080204870 | Bag type portable screen device - A bag type portable screen device is disclosed. A screen is coupled with a rotary rod with ½ to ⅓ the size of a conventional screen to complete a screen case. The screen case is coupled with one of upper and lower sides of a bag, and has rings to fix the screen, when the rotary rod rotates to open and use the screen. The screen is released from the rings to carry. The screen may be a fixed type reflective screen whose end is fixed to the bag. Since the bag accommodates a laptop computer, and a projector, the bag type portable screen is convenient to carry, install, and use. | 08-28-2008 |
20080239481 | Portable screen assembly - A portable screen assembly includes: a casing having an opening extending in a longitudinal direction on the upper surface thereof, and formed by a pair of separable case members that extend in the longitudinal direction; a spring-biased roll rotatably mounted in the casing; a screen wound around the spring-biased roll in a storage position and extended from the opening in use; a top bar fixed to one end of the screen which is used as a cover body to close the opening in the storage position; and an extendable column having one end erectably pivoted from a center part of a side face of the casing to hold the screen in a stretched state. | 10-02-2008 |
20080247041 | Portable screen assembly - A portable screen assembly includes: a casing having an opening extending in a longitudinal direction on the upper surface thereof, and formed by a pair of separable case members that extend in the longitudinal direction; a spring-biased roll rotatably mounted in the casing; a screen wound around the spring-biased roll in a storage position and extended from the opening in use; a top bar fixed to one end of the screen which is used as a cover body to close the opening in the storage position; and an extendable column having one end erectably pivoted from a center part of a side face of the casing to hold the screen in a stretched state. | 10-09-2008 |
20080259451 | Electric Roll-Up Limit Detection Device - An electric roll-up limit device includes a tube coupled by a tube rotor to an electric motor. The tube rotor contains a rocker bar that extends from the tube and activates a lower limit switch when a sheet of material is fully unrolled from the tube. A base below the tube rotor contains a pull bar cavity and an actuator device with a rotatable support frame and a rotatable actuator lever. The support frame supports the actuator lever and prevents it from rotating in one direction to activate an upper limit switch. A spring couples the rotation of the support frame and the actuator lever. When the sheet is fully rolled onto the tube, the pull bar cap retracts into the pull bar cavity and butts against the support frame. This causes the support frame to release the actuator lever, which then rotates to activate the upper limit switch. | 10-23-2008 |
20090067045 | SCREEN - A screen onto which an image light may be projected includes a flexible screen body, a first and a second storage member, and a retention member. The first storage member includes a screen wind-up section that winds up the screen body and supports either one of opposing end portions of the screen body and a base body that supports the screen wind-up section. The retention member includes a substantially orthogonal column that extends along the screen body and a pair of arm members that couple the column and the first and second storage members together. One end of each of the arm members is respectively rotatably coupled to the first and second storage members and another end of each of the arm members is rotatably coupled to the column. | 03-12-2009 |
20090109531 | PORTABLE PROJECTOR SCREEN ASSEMBLY - A portable projector screen assembly includes a roller, two cylinders slidably connected to two ends of the roller respectively, a collapsible member connected to the roller, and a screen. The collapsible member includes a plurality of interconnected pieces. Two free ends of the collapsible member are fixed to free ends of the cylinders respectively. The screen includes a plurality of fixing portions, and the fixing portions are respectively connected to joints of each two pieces of the collapsible member. | 04-30-2009 |
20090122400 | PORTABLE FRONT PROJECTION SCREEN ASSEMBLIES WITH FLEXIBLE SCREENS - Portable projection screen assemblies include: (a) a roller housing holding a roller with a flexible projection screen; (b) at least one substantially laterally extending screen support arm attached to the roller housing, the at least one screen support arm being configured to hold an outer edge portion of the flexible projection screen when the projection screen is in a laterally extended configuration; and (c) an outer housing case having an interior cavity sized and configured to hold the roller housing therein in a storage configuration. The roller housing is hingeably or releasably attached to the housing case and resides substantially vertically above the outer case in an operative position, whereby the outer housing case defines a support base adapted to reside on a support surface. | 05-14-2009 |
20090190212 | Retractable frame of projection screen - The present invention relates to a retractable frame of projection screen comprises, a receiving case; a cylinder; a supporting arm; a main retractable arm; and an upper support; when folding, the upper support is downwardly pressed, then the cylinder retractable arm is forced to inwardly retract by the cylinder and the driven retractable arm is inwardly retracted toward the main retractable arm until the cylinder retractable arm is fully received in the cylinder and the driven retractable arm is fully received in the main retractable arm, so the projection screen, the upper support, the supporting arm, the connecting member and the main retractable arm are received in the accommodating space. | 07-30-2009 |
20090284834 | Floor Type Electric Projection Screen - The present invention provides a floor type electric projection screen cooperatively used with a projector comprising a shell a projection, and a scroll. An end of the projection curtain is wound on the scroll, and the scroll is installed in the shell. A motor is defined in the projection screen. The motor drives the scroll rotating. The other end of the projection curtain is installed on a supporting bar. Supports are installed between the shell and the supporting bar. The support is formed of two or more parts. Folded structures are formed between every parts of the support. The support is supported by an elastic component. The structure of the present invention is simple and easy to carry. It overcomes the problems that the floor type projection screen in existing technology need to be manually operated in use or returning time. So it is greatly convenient to use. | 11-19-2009 |
20100007950 | SCREEN - A screen includes: a flexible screen body on which image light is projected; a fixed column arranged in a central portion; an arm sliding unit configured to pivotably support the second arm member of the first pantograph mechanism and the second arm member of the second pantograph mechanism with respect to the fixed column so as to be slidable in the vertical direction, in which the first pantograph mechanism and the second pantograph mechanism are expanded and contracted to move the first supporting unit and the second supporting unit toward and away from each other by a sliding movement of the arm sliding unit, and an urging member configured to urge the first supporting unit and the second supporting unit to move away from each other is provided. | 01-14-2010 |
20110026114 | PORTABLE SCREEN ASSEMBLY - The invention provides a portable screen assembly that is lighter in weight and easier to handle. The assembly includes a casing, a spring-biased roll rotatably amounted to the casing, a screen bonded at one end thereof to a top bar and wound around the spring-biased roll when in storage, and an expanding and contracting means having one end rotatably mounted to an mounting member mounted to the top bar and the other end rotatably mounted to the casing. For the expanding and contracting means is used a half- pantograph type expanding and contracting means having a first arm, a second arm and a third arm arranged in an extended plane parallel to the extended screen, the second arm including two or more mutually parallel sub arms provided to be mutually parallel in the extended plane, the two or more sub arms being connected to the first arm and the second arm so as to form a parallel link. | 02-03-2011 |
20110032612 | PORTABLE SCREEN ASSEMBLY AND EXPANDING AND CONTRACTING COLUMN AND HANDING TOOL USED THEREFOR - The invention provides a portable screen assembly that is small, light and easy to handle and enables easy extension and contraction of a column. There is used a column for stretching a screen having at least a first cylindrical body, a second cylindrical body, and a third cylindrical body, wherein the first cylindrical body slides within the second cylindrical body, the second cylindrical body slides within the third cylindrical body, and the cylindrical bodies are located in an order of the first cylindrical body, the second cylindrical body and the third cylindrical body from an upper stage side in an extended state, the column including a first lock portion locking slide of the first cylindrical body, a second lock portion locking slide of the second cylindrical body, a lock release lever provided at an upper end portion of the first cylindrical body, a release bar having an upper end portion pivotally supported to the lock release lever so as to be movable vertically within the first cylindrical body, a first lock release portion provided at an lower end portion of the release bar and releasing the first lock portion, and a second lock release portion provided further below the first lock release portion at the lower end portion of the release bar and releasing the second lock portion. | 02-10-2011 |
20110141559 | SCREEN UNIT - A screen unit includes: a screen having a first side, a second side, and a pair of crossing sides which cross the first side and the second side; a winding shaft holding the first side and functioning as a shaft around which the screen is wound; a supporting portion supporting the second side; a pair of string-shaped members provided between the winding shaft and the supporting portion and disposed outside the pair of the crossing sides of the screen in the directions along the pair of the crossing sides; and a plurality of connecting members provided on the pair of the crossing sides to connect the screen and the pair of the string-shaped members, wherein the pair of the crossing sides are curved toward the inside of the screen, and cushioning members are provided in such a manner as to cover at least the pair of the string-shaped members. | 06-16-2011 |
20110199678 | SCREEN UNIT - A screen unit includes: a screen member; a first support member which supports one end of the screen member; a second support member which supports the other end of the screen member; a stretching and contracting device which expands the screen member; and a tensioning member disposed on the side opposite to the side where the screen member is provided with respect to the stretching and contracting device to apply tension in a direction substantially parallel with the direction from the first support member to the second support member. | 08-18-2011 |
20110205622 | TENSIONED PROJECTION SCREEN - A projection screen apparatus having a perimeter frame and a substantially blank screen is provided. | 08-25-2011 |
20110235173 | CABINET PROJECTION SCREEN WITH AUTOMATIC COVER-LIFTING FUNCTION - A cabinet projection screen with an automatic cover-lifting function is provided, which includes a cabinet body ( | 09-29-2011 |
20110235174 | CABINET PROJECTION SCREEN WITH AUTOMATIC PUSH-PULL STRUCTRAL FUNCTION - A cabinet projection screen with an automatic push-pull structural function is provided, which includes a cabinet body ( | 09-29-2011 |
20120075697 | SCREEN ASSEMBLY FOR SIMULATOR - A screen assembly for a projectile-based simulator is comprised of front, right and left fabric panels that form a hitting bay with a front projector impact screen. Each fabric panel can be raised and lowered with respective roller assemblies that operate in unison so that the fabric panels are simultaneously raised and lowered. Zippers are provided between each of the fabric panels that are configured to cause adjacent fabric panels to engage as the panels are lowered and to disengage as the panels are raised to allow the panels to wind upon respective roller assemblies. | 03-29-2012 |
20120162760 | Portable Projection Screen - A portable projection screen comprises a first frame, a second frame a screen, rolled up within the first frame in a folded state, having a movable end, which is attached to the second frame, and a lever assembly, having two levers which form a shape like the letter X (or double X) with fixed and glidable ends, supporting the second frame in an unfolded state and being accommodated in the first frame in the folded state for a minimized volume and easy portability. | 06-28-2012 |
20120206801 | SCREEN UNIT - A screen unit includes a screen, a screen holding unit which holds the upper end of the screen, a screen winding unit around which the screen is wound, a pantograph mechanism which expands and stores the screen, and adjusting units which control the position of the upper end of the screen when the screen is expanded. The adjusting units have a support member which has a screw portion, and an adjusting screw member rotatably provided on the corresponding support member. The support member shifts in accordance with rotation of the adjusting screw member. | 08-16-2012 |
20120268815 | RETRACTABLE PROJECTION SCREEN - A retractable projection screen having a projection screen surface, a lower batten fixed adjacent the bottom of the projection screen surface, an upper batten fixed adjacent the top of the projection screen surface, a winch mandrel, a cable adapted to be fixed to the upper batten and wound around the winch mandrel and an outer roller on which the projection screen surface is wound. An electric motor is coupled to the winch mandrel to rotate the mandrel, thereby raising and lowering the projection screen surface. | 10-25-2012 |
20130027771 | SCREEN AND SCREEN UNIT - A screen reflects projection light for display. The screen has a screen base designed to be wound and including a first surface (front surface) and a second surface (rear surface) on the side opposite to the front surface. The front surface contains a display area that has a reflection film on which the projection light is reflected. The screen further has a flexible protection member which is disposed on the portion of the rear surface corresponding to the outside of the display area in the width direction of the display area, and extends through substantially the full length of the display area in the winding direction of the display area. The front surface is positioned outside when the screen base is wound. | 01-31-2013 |
20130235455 | RECESSED SCREEN - The present invention is a display screen projecting apparatus adaptable to be housed inside a wall. An outer shell is defined by a top board, a foot board, a backboard, a pair of side boards and a front panel. The outer shell comprising a synchronous motor designed to rotate on a synchronous motor bracket. The synchronous motor drives an optical axis via a coupling means. A directional axis is configured to accommodate the optical axis. A plurality of gears is inserted into the optical axis and the optical axis is capable to drive the plurality of gears. A cloth projector screen is attached to a cloth axis employs a suitable rotate and slide mechanism to push the cloth projector screen outwards from inside the wall. The cloth projector screen launches automatically when in use and retracts back when not in use. | 09-12-2013 |
20140133019 | HIGH EFFICIENCY MOTORIZED ROLLER SCREEN AND METHOD OF OPERATION - The invention advantageously provides a deployable screen system that includes a roller tube, a motor/controller unit and a power supply unit. The motor/controller unit is disposed within the roller tube, and includes a bearing, rotatably coupled to a support shaft, and a DC gear motor. The output shaft of the DC gear motor is coupled to the support shaft such that the output shaft and the support shaft do not rotate when the support shaft is attached to the mounting bracket. The deployable screen system is operable by tugging, manual movement and wireless control. The DC gear motor is underpowered by a plurality of batteries positioned within the roller tube. In this way a novel, useful and nonobvious deployable screen system is presented. | 05-15-2014 |
20150338730 | ROLLED PROJECTION SCREEN - A roller projection screen, including a projection screen material having a reflective front surface, onto which an image may be projected, and a back surface. The projection screen material is secured to a roller at an upper edge of the material and the projection screen material can be rolled in a spiral fashion in multiple layers around the roller. A buffer material is secured to the roller or to the back surface of the projection screen material so as to be adjacent the back surface and so as the be interposed between at least some of the multiple layers of the projection screen material when the projection screen material is rolled about the roller so as to inhibit ladder marks in the projection screen material. | 11-26-2015 |