Abstract: A transmission stretching truck box covering device with heating control, includes: a clutch-type drive gear box, wherein the drive of the transmission motor drives the electric roller shutter to operate, and the motor is communicatively connected to a roller shutter control board; an electric roller shutter, one end of which is connected to the clutch-type drive gear box, the other end of which is fixed in a driven bearing; a roller shutter cover, which stretches along the extension direction of a side rod; a side rod, which is a support frame in which the roller shutter cover stretches; wherein the inner side of the side rod is a guide rail in which the roller shutter cover stretches, and the outer side is attached to the two sidewalls of the open top cover in the truck box.

Abstract: A retractable cord queue barrier system uses a spring-biased pulley refraction mechanism acting on a stretchable cord. A constant-force coiled metal spring is used, such that the retraction force on the cord does not increase as the cord is extended—as it would for a helical spring governed by Hooke's Law. The use of a constant-force spring avoids abrupt snap-back of the extended cord when released, as well as the need for excessive pulling force on the cord as it approaches full extension, which tends to cause the stanchion to tip over. Dynamic balance between the contractive force of the stretchable cord and the retractive force of the constant-force spring achieves a taut but not unyielding tension in the interconnecting cords between stanchions.

Abstract: A security shade for use in an automotive vehicle. The security shade includes a cassette having a roll tube arranged therein. The roll tube has a shade panel fixed to the roll tube at one end thereof. The security shade also includes a bearing arranged in an end of the roll tube and a spring housing arranged in an end of the cassette. A motor spring is arranged within the spring housing and is axially fixed with relation to the roll tube and the cassette. The security shade also includes an end cap arranged over an end of a cassette. The security shade has the compressible end cap over each end of the roll tube and cassette.

Abstract: A roller blind device, in particular for a sliding roof system, having a roller blind web that, at least one end, can be wound by a winding device to form a roller blind winding, with the winding device comprising self-winding spiral springs that are connected to the roller blind web, with a winding shaping device being provided for shaping and/or guiding the roller blind winding, with the winding shaping device interacting with the roller blind web only in web regions of the roller blind web between the spiral springs.

Abstract: A window covering includes a mounting unit, a shading unit, and a winding unit. The mounting unit includes a first fixing member and a second fixing member. The shading unit includes a rotating axle, a curtain member fixed at one end to the rotating axle and which is wound on and unwound from the rotating axle, a first rotating member, and a second rotating member. The first rotating member and the second rotating member are fixed to the rotating axle and extend respectively through the first fixing member and the second fixing member to support rotation of the rotating axle therebetween. The winding unit is mounted to the first fixing member and includes a spring reel secured to the first rotating member to rotate therewith, an auxiliary wheel, and a spring wound around the auxiliary wheel and which is fixed at one end to the spring reel.

Abstract: A spring drive device is for use with a sunshade assembly which includes a coupling shaft coaxial to and rotatable with a winding shaft and formed with a guided path. The spring drive device includes a spring member disposed in and connected to a shell unit. A connecting shaft is formed with a guideway which has an initial region engaged with the spring member, such that when the connecting shaft is moved along a coupling route, the guideway is kept in slidable engagement with the spring member until a relay region of the guideway reaches the spring member. The connecting shaft is engageable with the coupling shaft to align the guided path with the guideway such that when the movement of the connecting shaft is continued after the relay region reaches the spring member, the guided path is brought to take over the slidable engagement with the spring member.

Abstract: A barrier for the control of people has a stand (10,11) supporting a housing (12) for a flexible band (14) extensible from the housing through a slot (15) in the side wall thereof. The spool and band are removable through the open upper end of the housing (12) and a tensioning cassette (16) for the spool is engaged with the housing and is drivingly coupled to the spool (13). A spring tensioner (29) acts between an outer wall (26) of the cassette and a drive shaft (30) for the spool. Tension may be applied to the spring (29) by freeing the cassette (16) from the housing (10) while leaving the drive shaft (30) connected to the spool (13) and then rotating the cassette, relative to the housing.

Abstract: The present invention relates to a cordless blind structure including a blind body further comprising a batten and a shade having an end disposed at an outer edge of the batten; a first end holder movably disposed at a first end of the batten; a second end holder movably disposed at a second end of the batten; and a limiting mechanism disposed between the blind body and the second end holder, the limiting mechanism including a resilient unit and an axial unit, the resilient unit being movably disposed at the second end holder, and the axial unit being movably disposed at the second end holder, controllably coupled to the resilient unit, and coupled to the second end of the batten. The shade is lifted or lowered by exerting a force thereon in conjunction with the limiting mechanism so as to ensure ease of use and enhance user safety.

Abstract: A window covering includes a mounting unit, a shading unit, and a winding unit. The mounting unit includes a first fixing member and a second fixing member. The shading unit includes a rotating axle, a curtain member fixed at one end to the rotating axle and which is wound on and unwound from the rotating axle, a first rotating member, and a second rotating member. The first rotating member and the second rotating member are fixed to the rotating axle and extend respectively through the first fixing member and the second fixing member to support rotation of the rotating axle therebetween. The winding unit is mounted to the first fixing member and includes a spring reel secured to the first rotating member to rotate therewith, an auxiliary wheel, and a spring wound around the auxiliary wheel and which is fixed at one end to the spring reel.

Abstract: A ratchet system for winding a rolling door assembly. The ratchet system includes a support bracket, a cam, and a biasing device. The support bracket is preferably mounted onto a fixed structure of the rolling door assembly. The cam is pivotally mounted about the support bracket and positioned adjacent to a portion of an overhead shaft of the assembly. The cam is shaped and sized to cooperate with this portion of the overhead shaft between a first position, where the cam allows rotation of the overhead shaft along a first direction, and a second position, where the cam has a surface engaged with the overhead shaft and where further rotation of the overhead shaft along a second direction, opposite to the first direction, is blocked by the cam. The biasing device is used for urging the surface of the cam onto the overhead shaft. The ratchet system is particularly useful for adjustably controlling the rotation of the overhead shaft of the rolling door assembly during the winding thereof.

Abstract: A motor spring assembly for use in a sun shade assembly in a vehicle comprises a motor spring housing and a bracket integral with and extending from the housing. The assembly also comprises a cover arranged over one side of the housing and a motor spring arranged within the housing. The assembly further comprises a shaft in contact with the motor spring wherein the shaft rotates with respect to the housing. The assembly also includes a connector arranged over an end of the shaft. The motor spring assembly generally will be arranged and secured within a guide rail of a sun shade assembly thus allowing for a more robust and durable sun shade assembly within an automotive vehicle.

Abstract: There is provided a roll-up shade apparatus which can ensure a larger open dimension of a shade. The roll-up shade apparatus comprises a pair of first wire drums which travel and rotate in a wire wind-up direction or a wire feed direction when the shade is moved in the open direction or the closing direction, a pair of second wire drums which are coupled to a retractor so as to be rotatable together with the retractor, and which are rotatably provided at both sides of the retractor coaxially therewith so that a wire wind-up direction becomes opposite to a shade wind-up direction of the retractor, and a pair of wires suspended between the respective first and second wire drums so that the second wire drums rotate in a wire feed direction or in a wire wind-up direction when the first wire drums rotate in the wire wind-up direction or in the wire feed direction, respectively.

Abstract: A roller blind device, in particular for a sliding roof system, having a roller blind web that, at least one end, can be wound by a winding device to form a roller blind winding, with the winding device comprising self-winding spiral springs that are connected to the roller blind web, with a winding shaping device being provided for shaping and/or guiding the roller blind winding, with the winding shaping device interacting with the roller blind web only in web regions of the roller blind web between the spiral springs.

Abstract: A spring motor having a pot shaped housing in which a flat spiral spring is housed. The flat spiral spring is connected at one outer end to the pot-shaped housing while the inner end is coupled to a shaft or axle. To prevent radial vibrations of individual spring layers when the spring motor is wound or unwound, a damping plate is housed in the pot-shaped housing and held in pressed engagement with a side edge of the flat spiral spring. This spring motor can be combined with the wind-up shaft of roller-blind arrangements for motor vehicles, including fixed roller blinds, storage-area covers, or separating screens.

Abstract: The present application pertains to a system for adjusting the height of a covering, such as window or a wall covering formed of two or more covering segments that are axially aligned. The system includes a link that selectively transmits rotation between two adjacent coverage thereby allowing the two coverings to be controlled, e.g., raised or lowered, simultaneously. The link includes a clutch that allows one of the segments to be rotated with respect to the other so that the bottom end of one of the coverings can be adjusted and aligned horizontally independently of the other. Optionally, the clutch includes an internal member that provides a mechanical advantage while the one covering is adjusted.

Abstract: A window shade arrangement for a motor vehicle is provided that contains a housing in which a winding shaft is rotatably supported. A strip shaped shade element is fixed on the winding shaft. The cover of the window shade housing is formed by a spring housing. A coil spring for tensioning the winding shaft in the wind up direction of the strip shaped shade is seated in the spring housing. The spring housing, the spring seated therein and a coupling shaft form a preassembled unit.

Abstract: A roller blind for a side window of a motor vehicle. The roller blind has a winding shaft, which is coupled via an articulated or flexible coupling mechanism to a spring drive situated outside the winding shaft. The winding shaft and the spring drive are accommodated inside a vertical window frame segment of a motor vehicle's window. The articulated or flexible coupling between the winding shaft and the spring drive makes it possible to approximate a curved path by means of two normally straight elements of the blind. Furthermore, a very flat characteristic tension curve can be achieved for the spring drive, even when the winding shaft is very short.

Abstract: A motorized sun screen for covering a vehicle window has a base unit and a screen unit which includes a lower horizontal rod mounted rotatably on the base unit, an upper horizontal shaft and a screen with a bottom edge connected to the horizontal rod and a top edge connected to the horizontal shaft. Each of a pair of pivot arms has a lower end portion mounted pivotally on the base unit and an upper end portion slidably engaging the horizontal shaft. An extension spring has two ends connected respectively to the lower end portion of the pivot arms. A drive unit is mounted on the base unit and includes a motor with a rotatable drive shaft which is coupled to one end of the horizontal rod. The motor is operable in a first mode, wherein the motor permits the extension spring to contract, thereby causing the pivot arms to pivot away from each other to move the horizontal shaft upwardly and stretch the screen.

Abstract: A socket for mounting a finial on either of two telescoping tubular support rods includes a first engagement surface that enters into and contacts the smaller rod and a second engagement surface that surrounds and contacts the larger rod. The engagement surfaces wedge into an interference or force fit with the rod ends to maintain the finial on the rods. The surfaces are preferably defined by the side walls of an annular groove shaped to conform to the cross section of the support rod. The socket includes slots for mounting the finial on a holdback bracket. The slots are conveniently formed as widened regions of the annular groove and are positioned in diametrically opposed locations to permit top-to-bottom symmetrical finials to be inverted about a horizontal axis and front-to-back symmetrical finials to be inverted about a vertical axis for mounting on the left or the right side of a window opening.

Abstract: A security shade for the cargo area of a motor vehicle. The security shade includes a flexible shade panel mounted to a roller tube having at least one support subassembly mounted to its ends. The subassembly further includes a housing and a coupling portion which couples the housing to the roller tube, a rotational biasing spring which rotationally biases the coupling portion relative to said housing and a mechanism for mounting the security shade within the vehicle.

Abstract: The strap winder has a base plate (1) with a recessed grip (2) which is arranged laterally alongside the usual spring-tensioned strap drum (11) and through which the pulling strap (3) passes transversely, the pulling strap running from the device to be operated via a strap clamping device to the recessed grip and from the latter via deflection rollers to the strap drum, so that the strap winder can, due to its relatively flat design, be fitted countersunk in a thin-walled lintel surface above a skylight and thus allowing for more convenient operation.

Abstract: A sectioned, roller type extensible and retractable enclosure for open bed vehicles employs a spring mechanism through which the slats of the cover are maintained in tension (in the direction of the length of the cover and away from the roll) during rotation of the stowage roller. As a result of this tension, the slats of the cover are effectively prevented from drooping as they are unwound from the roll and enter the guide channels, so that the unwanted bunching of the slats does not occur.