| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 016096000 | Tracks | 23 |
| 20080229548 | Weatherproof vertical door jamb - A door jamb for a break-away industrial door including at least one weather strip and methods for making the same. The door jamb may include a guide track which supports one or more pieces of weather stripping. The guide track may be constructed to allow the break-away door to leave the track if the door is deformed to a predetermined extent. The guide track may be formed by an extrusion process. | 09-25-2008 |
| 20090094792 | SLIDING SCREEN DOOR MECHANISM - A sliding screen door mechanism ( | 04-16-2009 |
| 20100037434 | Door rail and door attachment system for passenger rail cars - A covering as a part of a guide carrier on a door rail for a sliding door system of a rail car is provided. The guide carrier runs along a horizontal edge of a door opening of a car body of the rail car and has a guide device for a sliding support of a sliding door. The covering serves to cover at least the door rail and support elements on the outside. | 02-18-2010 |
| 20100154174 | Carriage with a drive device and separation device - The carriage provided for a separation device comprises a carriage body serving to hold a separation element, which carriage body comprises at least one running wheel, which can be moved on a rail, and a drive device made up of an electric motor and a gearing, which drive device is coupled to a first drive element, by means of which a force can be transferred to the rail and the carriage can be driven. According to the invention the drive device is coupled to at least one second drive element, by means of which the separation element held so as to be rotatable can be driven. Using the inventive carriage, separation elements which are separate or connected to each other in a jointed way can be advantageously displaced and/or rotated. | 06-24-2010 |
| 20110131767 | SLIDING DOOR FOR A VEHICLE - A sliding door for a vehicle comprises a guide rail and a sliding carriage which is longitudinally movably mounted on the guide rail and which is connected with the vehicle body by a multiple joint. The sliding door furthermore comprises a centering element at its end facing away from the multiple joint. To improve such sliding door, the centering element includes a centering surface which rests against the counter surface integral with the body, when the sliding door is closed. | 06-09-2011 |
| 20110239410 | GLASS RUN CHANNEL, GLASS RUN CHANNEL ASSEMBLY AND MANUFACTURING METHOD OF GLASS RUN CHANNEL - A glass run channel having an elongated shape, which is mounted on a window frame of a vehicle door, guides moving up and down of a windowpane and is made of a polymer material, the glass run channel including a run channel main body that forms the main part of the glass run channel, the run channel main body including, a base bottom portion, an interior side wall portion, an exterior side wall portion, an interior seal lip and an exterior seal lip, wherein the run channel main body has a foamed part made of a foamable polymer material that includes a thermoplastic elastomer material and thermal expansion capsules, and has foaming cells which are formed by expansion of the thermal expansion capsules, and wherein a water absorption rate of the foamed part of the run channel main body is adjusted to 5% or less. | 10-06-2011 |
| 20110283482 | GUIDE TRACK SYSTEM AND COMPONENTS THEREOF - A guide track system and a bracket assembly thereof for supporting guide tracks thereof are provided. The guide track system comprises a first guide track piece, a second guide track piece, and a bracket assembly configured to support the first and second guide track pieces. The bracket assembly comprises a mounting feature configured to be mounted to a support structure, and a guide track supporting feature connected to the mounting feature and configured to support a portion of the guide track mounted thereon. The guide track supporting feature, in turn, comprises a body having a first end, a second end, and a longitudinal axis extending through the first and second ends, wherein the first end is configured to be coupled with an end of the first guide track piece, and the second end is configured to be coupled with an end of the second guide track piece. | 11-24-2011 |
| 20110289732 | SLIDING WINDOW GUIDE FOR A SLIDING WINDOW COMPONENT COMPRISING NON-PARALLEL GUIDES - The invention relates to a sliding window guide, in the case of which the guides, which guide the sliding window, do not run parallel, whereby the distance between the guides and the sliding window thus changes across the displacement path of the sliding window, wherein at least one of the guides encompasses a holding device, in which a guide rail is movably held by means of an equalizing bearing, so that the change of distance can be equalized via a displacement of the guide rail. | 12-01-2011 |
| 20120124779 | GLASS RUN - A glass run includes a glass run upper side part which is provided with a core member inside, and formed with a longitudinal recess at a longitudinal end portion, wherein the core member extends longitudinally of the glass run upper side part. A glass run corner part joins a glass run lateral side part to the longitudinal end portion of the glass run upper side part, and includes an extension filling the longitudinal recess of the glass run upper side part. A stopper part is fixed to at least one of the glass run upper side part and the glass run corner part, and configured to engage with an automotive door sash. The stopper part overlaps with the core member and the extension of the glass run corner part longitudinally of the glass run upper side part. | 05-24-2012 |
| 20120144627 | Roller Rail For A Sliding Door And Method For Actuating A Turnout In A Roller Rail - A roller rail for a sliding wall, which includes several sliding wall elements, in which each sliding wall element is supported to be displaceable via in particular two carriages. The roller rail is connectable to a branching roller rail via a turnout which is switchable by the carriages. At least one carriage of a sliding wall element, for switching the turnout, takes up a position which is located outside the turnout. | 06-14-2012 |
| 20130097811 | GUIDE FOR SLIDING DOORS - A guide device for sliding doors for shelves has at least one guide rail, each guide rail have a guide region for guiding sliding doors and at least one fastening region connected to the guide region for fastening the guide device to shelves. The guide regions in their cooperation form a guide arrangement ( | 04-25-2013 |
| 20130152344 | Safety Loading Unit for Ceiling Track with Easy to Use Latching - The present disclosure is concerned with an improved latching mechanism for the hinged section of a ceiling track for traveling curtains. The latching mechanism is designed to make a readily audible sound when it is locked. It is based upon a generally oval shaped lock knob which passes through a generally oval shaped aperture in the bottom wall of a receiver for the lock knob. The aperture is designed so that when the lock knob is rotated its long axis no longer aligns with the long axis of the aperture it can no longer pass through the aperture. The bottom wall of the receiver carries two upwardly extending side walls that must be pushed outward to allow the passage of the lock knob as it rotates and that carry gaps that accommodate the tips of the lock knob and allow the side walls to move back toward their undeformed position. | 06-20-2013 |
| 20130239368 | SYSTEM, METHOD, AND APPARATUS FOR HOLDING A TRACK TO A BASE - Bolt-on clamp extrusions for fastening a track to support base extrusion for providing customers with a simple-to-assemble, customizable, reconfigurable, and user-friendly solution for reliable linear motion track assembly. A back-to-back track configuration provides a low-profile track assembly. Custom made base extrusions include deformable fingers disposed in the slot to ensure proper fit despite a variance in track size. | 09-19-2013 |
| 20140013543 | GUIDING DEVICE, CARRIAGE AND RUNNING RAIL - The guiding device, which serves for guiding a sliding element, such as a sliding door provided with a door leaf, with which a room opening of a building part can be closed at least approximately tightly, comprises a running rail having a longitudinal axis and at least one carriage that is guided along the running rail and that comprises a carriage body that is connected to a coupling device that is coupled or can be coupled with the sliding element. | 01-16-2014 |
| 20140157550 | LINEAR CENTER RAIL STRUCTURE FOR SLIDING DOOR - A linear center rail structure for a sliding door includes a linear center rail, a roller part, a base, and an arm. The linear center rail is disposed on a side outer panel of a vehicle. The roller part is guided by the center rail, slid along the center rail, and has hinge holes formed at an end portion thereof. The base is fixed to a sliding door panel and has slots formed in a pop-up direction of the sliding door panel. The arm has one end at which a first hinge shaft rotatably coupled to the hinge holes of the roller part is disposed and the other end at which a second hinge shaft fitted into the slots of the base to thereby be slidably and rotatably coupled to the base is disposed. | 06-12-2014 |
| 20140208545 | RAIL AND ROLLER OF A WINDOW AND DOOR SYSTEM AND WINDOW OPERATION APPARATUS FOR WINDOWS AND DOORS USING SAME - The present invention relates to a rail and a door roller of a window and door system and a window operation apparatus for windows and doors using the same. The rail and the door roller of a window and door system and the window operation apparatus for windows and doors using the same according to the present invention include: one or more upper linear rail units | 07-31-2014 |
| 20140250633 | PANEL HARDWARE SYSTEM AND ASSOCIATED METHODS - The present disclosure is drawn to a panel hardware system and related methods. The panel hardware system can comprise a track and a wheel configured to interface with the track. The panel hardware system can also comprise a hanger including an extension portion, and a panel coupling portion to couple with a panel, wherein the track or the wheel is coupleable to a support structure and the other of the track or the wheel is coupleable to the extension portion such that the panel is movable relative to the support structure. In addition, the panel hardware system can comprise an adjustable spacer operable with the track, the wheel, and/or the hanger to provide a distance between the panel and the support structure as the panel moves relative to the support structure. The spacer can facilitate variable spacing configurations to accommodate a variety of panel dimensions or support structure configurations. | 09-11-2014 |
| 20150026927 | TRACK BEAM STRUCTURE - A track beam structure includes a track body, a fixing plate and a rotatable handle. The track body has first hooking members and is detachably coupled to a structural body. The fixing plate has a plurality of second hooking members coupled to the first hooking members. The rotatable handle includes a rotatable portion, a handle, and a tightening surface and a releasing surface arranged peripherally thereon. The rotatable handle is disposed on the fixing plate adjacent to track body. A distance between a rotating center of second pivotable portion and tightening surface is larger than a shortest distance between the rotating center and track body, and the shortest distance between the rotating center and track body is larger than a distance between the rotating center and releasing surface. The track beam structure can provide adjustments to the relative position of a load bearing body on the track body. | 01-29-2015 |
| 20150026928 | ADJUSTABLE CARRIAGE AND SHIFTING DEVICE - A carriage, which serves for holding and shifting a separating element in a running direction along a rail, includes a carriage body that holds at least one running element and a mounting body that is slidably connected to the carriage body and is connectable to the separating element. A coupling member includes a first and second coupling element connected via a bridge member, wherein the first coupling element is slidably held in the carriage body and the second is slidably held in the mounting body. The bridge member has a first coupling surface inclined relative to the running direction which supports the carriage body or the mounting body, so that with a movement of the coupling member the carriage and mounting bodies are shifted relative to one another. The shifting device includes two inventive carriages that are guided in a rail and that are connected to a separating element. | 01-29-2015 |
| 20150308174 | TRACK STRUCTURE FOR A SLIDEWAY AND A METHOD FOR MAKING THE SAME - A track structure for a slideway includes a track body which has a main wall and two lateral walls integrally formed at two sides of the main wall. The track body is formed by folding two sides of a metal plate with a thickness t | 10-29-2015 |
| 20160060934 | SLIDE RAIL ASSEMBLY - A slide rail assembly includes a first rail having a guiding portion, a second rail, a third rail having a hook portion, and an actuating member movably connecting to the second rail and having a contact portion. When the third rail is pulled with respect to the first rail with the contact portion engaging with the hook portion, the second rail synchronously moves along with the third rail to be moved to a predetermined position with respect to the first rail, and consequently, the actuating member rotates by an angle by guiding means of the guiding portion of the first rail to disengage the contact portion of the actuating member from the hook portion of the third rail. | 03-03-2016 |
| 20080250608 | Magnetic drapery track - A Magnetic drapery track without mounting hardware (brackets). An extruded aluminum and or extruded thermoplastic track having single or multiple channels. Various properties and number of magnets along said channel having opposed flat surfaces defining north and South Pole surfaces. Back said surface is attracted to a ferrous material so that the drapery track can be (releasable). Ferrous material being but not limited to a concealed corner bead/lath, generally installed during the construction phase, that surrounds a drywall/plasterboard (gypsum) opening. Any opening that may contain but not limited to a sliding glass door, windows and doors and contains ferrous materials. It is because of the concealed corner bead/lath and or exposed metal moldings and trims at the header and its surrounding opening that the magnetic drapery track can adhere without mounting hardware (brackets). | 10-16-2008 |
| 20120266413 | CURTAIN CONTROL DEVICE - A curtain control device has a stroke setting device and a damper respectively assembled at both ends of a curtain spindle rod. A torsion element is further assembled on the curtain spindle rod. A curtain spindle sleeve is invaginated on the outside of the curtain spindle rod, the stroke setting device and the damper. The curtain spindle sleeve is assembled with the combination of the curtain spindle rod and the damper, and then a curtain fabric is assembled on the outside of the curtain spindle sleeve. In this manner, the opening range of the curtain fabric roll is controlled by the stoke setting device, and the roll-up speed of each part of the curtain fabric is slowed down by the damper so as to reduce effectively the noise produced by the quick actuation of each part and the defective rate. | 10-25-2012 |
| 016096000 | Drapery supports | 2 |
| 20080229548 | Weatherproof vertical door jamb - A door jamb for a break-away industrial door including at least one weather strip and methods for making the same. The door jamb may include a guide track which supports one or more pieces of weather stripping. The guide track may be constructed to allow the break-away door to leave the track if the door is deformed to a predetermined extent. The guide track may be formed by an extrusion process. | 09-25-2008 |
| 20090094792 | SLIDING SCREEN DOOR MECHANISM - A sliding screen door mechanism ( | 04-16-2009 |
| 20100037434 | Door rail and door attachment system for passenger rail cars - A covering as a part of a guide carrier on a door rail for a sliding door system of a rail car is provided. The guide carrier runs along a horizontal edge of a door opening of a car body of the rail car and has a guide device for a sliding support of a sliding door. The covering serves to cover at least the door rail and support elements on the outside. | 02-18-2010 |
| 20100154174 | Carriage with a drive device and separation device - The carriage provided for a separation device comprises a carriage body serving to hold a separation element, which carriage body comprises at least one running wheel, which can be moved on a rail, and a drive device made up of an electric motor and a gearing, which drive device is coupled to a first drive element, by means of which a force can be transferred to the rail and the carriage can be driven. According to the invention the drive device is coupled to at least one second drive element, by means of which the separation element held so as to be rotatable can be driven. Using the inventive carriage, separation elements which are separate or connected to each other in a jointed way can be advantageously displaced and/or rotated. | 06-24-2010 |
| 20110131767 | SLIDING DOOR FOR A VEHICLE - A sliding door for a vehicle comprises a guide rail and a sliding carriage which is longitudinally movably mounted on the guide rail and which is connected with the vehicle body by a multiple joint. The sliding door furthermore comprises a centering element at its end facing away from the multiple joint. To improve such sliding door, the centering element includes a centering surface which rests against the counter surface integral with the body, when the sliding door is closed. | 06-09-2011 |
| 20110239410 | GLASS RUN CHANNEL, GLASS RUN CHANNEL ASSEMBLY AND MANUFACTURING METHOD OF GLASS RUN CHANNEL - A glass run channel having an elongated shape, which is mounted on a window frame of a vehicle door, guides moving up and down of a windowpane and is made of a polymer material, the glass run channel including a run channel main body that forms the main part of the glass run channel, the run channel main body including, a base bottom portion, an interior side wall portion, an exterior side wall portion, an interior seal lip and an exterior seal lip, wherein the run channel main body has a foamed part made of a foamable polymer material that includes a thermoplastic elastomer material and thermal expansion capsules, and has foaming cells which are formed by expansion of the thermal expansion capsules, and wherein a water absorption rate of the foamed part of the run channel main body is adjusted to 5% or less. | 10-06-2011 |
| 20110283482 | GUIDE TRACK SYSTEM AND COMPONENTS THEREOF - A guide track system and a bracket assembly thereof for supporting guide tracks thereof are provided. The guide track system comprises a first guide track piece, a second guide track piece, and a bracket assembly configured to support the first and second guide track pieces. The bracket assembly comprises a mounting feature configured to be mounted to a support structure, and a guide track supporting feature connected to the mounting feature and configured to support a portion of the guide track mounted thereon. The guide track supporting feature, in turn, comprises a body having a first end, a second end, and a longitudinal axis extending through the first and second ends, wherein the first end is configured to be coupled with an end of the first guide track piece, and the second end is configured to be coupled with an end of the second guide track piece. | 11-24-2011 |
| 20110289732 | SLIDING WINDOW GUIDE FOR A SLIDING WINDOW COMPONENT COMPRISING NON-PARALLEL GUIDES - The invention relates to a sliding window guide, in the case of which the guides, which guide the sliding window, do not run parallel, whereby the distance between the guides and the sliding window thus changes across the displacement path of the sliding window, wherein at least one of the guides encompasses a holding device, in which a guide rail is movably held by means of an equalizing bearing, so that the change of distance can be equalized via a displacement of the guide rail. | 12-01-2011 |
| 20120124779 | GLASS RUN - A glass run includes a glass run upper side part which is provided with a core member inside, and formed with a longitudinal recess at a longitudinal end portion, wherein the core member extends longitudinally of the glass run upper side part. A glass run corner part joins a glass run lateral side part to the longitudinal end portion of the glass run upper side part, and includes an extension filling the longitudinal recess of the glass run upper side part. A stopper part is fixed to at least one of the glass run upper side part and the glass run corner part, and configured to engage with an automotive door sash. The stopper part overlaps with the core member and the extension of the glass run corner part longitudinally of the glass run upper side part. | 05-24-2012 |
| 20120144627 | Roller Rail For A Sliding Door And Method For Actuating A Turnout In A Roller Rail - A roller rail for a sliding wall, which includes several sliding wall elements, in which each sliding wall element is supported to be displaceable via in particular two carriages. The roller rail is connectable to a branching roller rail via a turnout which is switchable by the carriages. At least one carriage of a sliding wall element, for switching the turnout, takes up a position which is located outside the turnout. | 06-14-2012 |
| 20130097811 | GUIDE FOR SLIDING DOORS - A guide device for sliding doors for shelves has at least one guide rail, each guide rail have a guide region for guiding sliding doors and at least one fastening region connected to the guide region for fastening the guide device to shelves. The guide regions in their cooperation form a guide arrangement ( | 04-25-2013 |
| 20130152344 | Safety Loading Unit for Ceiling Track with Easy to Use Latching - The present disclosure is concerned with an improved latching mechanism for the hinged section of a ceiling track for traveling curtains. The latching mechanism is designed to make a readily audible sound when it is locked. It is based upon a generally oval shaped lock knob which passes through a generally oval shaped aperture in the bottom wall of a receiver for the lock knob. The aperture is designed so that when the lock knob is rotated its long axis no longer aligns with the long axis of the aperture it can no longer pass through the aperture. The bottom wall of the receiver carries two upwardly extending side walls that must be pushed outward to allow the passage of the lock knob as it rotates and that carry gaps that accommodate the tips of the lock knob and allow the side walls to move back toward their undeformed position. | 06-20-2013 |
| 20130239368 | SYSTEM, METHOD, AND APPARATUS FOR HOLDING A TRACK TO A BASE - Bolt-on clamp extrusions for fastening a track to support base extrusion for providing customers with a simple-to-assemble, customizable, reconfigurable, and user-friendly solution for reliable linear motion track assembly. A back-to-back track configuration provides a low-profile track assembly. Custom made base extrusions include deformable fingers disposed in the slot to ensure proper fit despite a variance in track size. | 09-19-2013 |
| 20140013543 | GUIDING DEVICE, CARRIAGE AND RUNNING RAIL - The guiding device, which serves for guiding a sliding element, such as a sliding door provided with a door leaf, with which a room opening of a building part can be closed at least approximately tightly, comprises a running rail having a longitudinal axis and at least one carriage that is guided along the running rail and that comprises a carriage body that is connected to a coupling device that is coupled or can be coupled with the sliding element. | 01-16-2014 |
| 20140157550 | LINEAR CENTER RAIL STRUCTURE FOR SLIDING DOOR - A linear center rail structure for a sliding door includes a linear center rail, a roller part, a base, and an arm. The linear center rail is disposed on a side outer panel of a vehicle. The roller part is guided by the center rail, slid along the center rail, and has hinge holes formed at an end portion thereof. The base is fixed to a sliding door panel and has slots formed in a pop-up direction of the sliding door panel. The arm has one end at which a first hinge shaft rotatably coupled to the hinge holes of the roller part is disposed and the other end at which a second hinge shaft fitted into the slots of the base to thereby be slidably and rotatably coupled to the base is disposed. | 06-12-2014 |
| 20140208545 | RAIL AND ROLLER OF A WINDOW AND DOOR SYSTEM AND WINDOW OPERATION APPARATUS FOR WINDOWS AND DOORS USING SAME - The present invention relates to a rail and a door roller of a window and door system and a window operation apparatus for windows and doors using the same. The rail and the door roller of a window and door system and the window operation apparatus for windows and doors using the same according to the present invention include: one or more upper linear rail units | 07-31-2014 |
| 20140250633 | PANEL HARDWARE SYSTEM AND ASSOCIATED METHODS - The present disclosure is drawn to a panel hardware system and related methods. The panel hardware system can comprise a track and a wheel configured to interface with the track. The panel hardware system can also comprise a hanger including an extension portion, and a panel coupling portion to couple with a panel, wherein the track or the wheel is coupleable to a support structure and the other of the track or the wheel is coupleable to the extension portion such that the panel is movable relative to the support structure. In addition, the panel hardware system can comprise an adjustable spacer operable with the track, the wheel, and/or the hanger to provide a distance between the panel and the support structure as the panel moves relative to the support structure. The spacer can facilitate variable spacing configurations to accommodate a variety of panel dimensions or support structure configurations. | 09-11-2014 |
| 20150026927 | TRACK BEAM STRUCTURE - A track beam structure includes a track body, a fixing plate and a rotatable handle. The track body has first hooking members and is detachably coupled to a structural body. The fixing plate has a plurality of second hooking members coupled to the first hooking members. The rotatable handle includes a rotatable portion, a handle, and a tightening surface and a releasing surface arranged peripherally thereon. The rotatable handle is disposed on the fixing plate adjacent to track body. A distance between a rotating center of second pivotable portion and tightening surface is larger than a shortest distance between the rotating center and track body, and the shortest distance between the rotating center and track body is larger than a distance between the rotating center and releasing surface. The track beam structure can provide adjustments to the relative position of a load bearing body on the track body. | 01-29-2015 |
| 20150026928 | ADJUSTABLE CARRIAGE AND SHIFTING DEVICE - A carriage, which serves for holding and shifting a separating element in a running direction along a rail, includes a carriage body that holds at least one running element and a mounting body that is slidably connected to the carriage body and is connectable to the separating element. A coupling member includes a first and second coupling element connected via a bridge member, wherein the first coupling element is slidably held in the carriage body and the second is slidably held in the mounting body. The bridge member has a first coupling surface inclined relative to the running direction which supports the carriage body or the mounting body, so that with a movement of the coupling member the carriage and mounting bodies are shifted relative to one another. The shifting device includes two inventive carriages that are guided in a rail and that are connected to a separating element. | 01-29-2015 |
| 20150308174 | TRACK STRUCTURE FOR A SLIDEWAY AND A METHOD FOR MAKING THE SAME - A track structure for a slideway includes a track body which has a main wall and two lateral walls integrally formed at two sides of the main wall. The track body is formed by folding two sides of a metal plate with a thickness t | 10-29-2015 |
| 20160060934 | SLIDE RAIL ASSEMBLY - A slide rail assembly includes a first rail having a guiding portion, a second rail, a third rail having a hook portion, and an actuating member movably connecting to the second rail and having a contact portion. When the third rail is pulled with respect to the first rail with the contact portion engaging with the hook portion, the second rail synchronously moves along with the third rail to be moved to a predetermined position with respect to the first rail, and consequently, the actuating member rotates by an angle by guiding means of the guiding portion of the first rail to disengage the contact portion of the actuating member from the hook portion of the third rail. | 03-03-2016 |
| 20080250608 | Magnetic drapery track - A Magnetic drapery track without mounting hardware (brackets). An extruded aluminum and or extruded thermoplastic track having single or multiple channels. Various properties and number of magnets along said channel having opposed flat surfaces defining north and South Pole surfaces. Back said surface is attracted to a ferrous material so that the drapery track can be (releasable). Ferrous material being but not limited to a concealed corner bead/lath, generally installed during the construction phase, that surrounds a drywall/plasterboard (gypsum) opening. Any opening that may contain but not limited to a sliding glass door, windows and doors and contains ferrous materials. It is because of the concealed corner bead/lath and or exposed metal moldings and trims at the header and its surrounding opening that the magnetic drapery track can adhere without mounting hardware (brackets). | 10-16-2008 |
| 20120266413 | CURTAIN CONTROL DEVICE - A curtain control device has a stroke setting device and a damper respectively assembled at both ends of a curtain spindle rod. A torsion element is further assembled on the curtain spindle rod. A curtain spindle sleeve is invaginated on the outside of the curtain spindle rod, the stroke setting device and the damper. The curtain spindle sleeve is assembled with the combination of the curtain spindle rod and the damper, and then a curtain fabric is assembled on the outside of the curtain spindle sleeve. In this manner, the opening range of the curtain fabric roll is controlled by the stoke setting device, and the roll-up speed of each part of the curtain fabric is slowed down by the damper so as to reduce effectively the noise produced by the quick actuation of each part and the defective rate. | 10-25-2012 |
