Retractable sunshade structure

Abstract

A sunshade structure includes a frame assembly, a telescopic sunshade assembly and a drive system. The frame assembly includes a plurality of upright rods and a plurality of cross beams connected thereto. The telescopic sunshade assembly is connected to the plurality of cross beams. The telescopic sunshade assembly includes a sunshade portion assembly having a plurality of slender rods and a sunshade component extending therebetween. The slender rods are spaced apart from each other to extend the sunshade component into an outwardly extending sunshade structure. The slender rods move relative to each other in a retracted structure, wherein the sunshade component vertically forms a ring structure between adjacent slender rods.

Description

Technical Field

[0001] The present application relates to a telescopic sunshade structure, which can be extended and retracted to provide sunshade and a wide view of the sky as required by the user. Background Art

[0002] Umbrellas are known to provide protection from the elements, and while simple handheld umbrellas are convenient for providing shade from the sun and rain, larger umbrellas can provide more shelter for businesses or outdoor diners.

[0003] Providing shade over large areas is challenging because the individual shade elements must be securely supported. Options for supporting shade elements include a center pole that extends underneath the shade unit, a support frame that can be mounted to a vertical surface such as a wall, and an awning structure with rollers, as well as a foldable support frame for portable shade. Summary of the invention

[0004] There is a need for an improved way to support a sunshade element. An improved way to extend and retract the element inwardly. A simplified sunshade retraction device that reduces or eliminates the need for added weight, cost, and sunshade reels or rollers. A retractable sunshade structure that has a long service life, simplified design, and reduced manufacturing complexity.

[0005] In one embodiment, a sunshade structure is provided, which includes a frame assembly, a telescopic sunshade assembly, and a drive system. The frame assembly includes a plurality of upright rods and a plurality of cross beams connected thereto. The telescopic sunshade assembly is connected to the plurality of cross beams. The telescopic sunshade assembly includes a sunshade portion assembly having a plurality of elongated rods and a sunshade component extending therebetween. The drive system is configured to extend the telescopic sunshade assembly to an extended sunshade device and to retract the telescopic sunshade assembly to a retracted device. The elongated rods are separated from each other to extend each sunshade component in the extended sunshade device. The elongated rods move relative to each other in the retracted device.

[0006] In some embodiments, when the telescopic sunshade assembly is in a retracted state, the sunshade component can vertically form a ring structure between adjacent slender rods.

[0007] The drive system includes one or more drive belts. Drive belts are provided in the upright poles and drive belts are provided in one or more cross beams. The drive belts may be arranged horizontally in the sunshade structure. The drive belts may drive the telescopic sunshade assembly to extend and retract. Two drive belts may be arranged horizontally oriented and connected to the drive rod so that rotation of the drive belts may move the drive rod forward and backward to extend and retract the telescopic sunshade assembly. The drive belts may be arranged in a channel of a horizontal cross beam, for example, a channel of an extrusion thereof.

[0008] In another embodiment, a sunshade structure is provided, which includes a frame assembly, a telescopic sunshade assembly and a drive system. The frame assembly has a plurality of upright rods, a plurality of side beams connected to the top ends of the upright rods, and a front beam extending between two upright rods. The telescopic sunshade assembly has a sunshade portion assembly, which includes a plurality of slender rods, a drive rod and a sunshade portion. Each slender rod is connected to the side beam through a guide. The drive rod is connected to the side beam through a connecting assembly. The drive system includes a torque source, such as a hand crank or a motor, which is connected to one of the upright rods and connected to a transmission device. The transmission device is connected to one or more side beams. The drive system is configured to operate the transmission device to drive the drive rod to extend the telescopic sunshade assembly to the sunshade device and retract the telescopic sunshade assembly to the retracting device. The slender rods are separated from each other to extend the sunshade component in the sunshade device, and each slender rod moves relative to each other in the retracting device. In some embodiments, when the telescopic sunshade assembly is in the retracted structure, the sunshade component vertically forms a ring structure between adjacent slender rods.

[0009] In another embodiment, a sunshade structure is provided, which includes a frame assembly, a telescopic sunshade assembly and a drive system. The frame assembly has a plurality of upright rods and a plurality of crossbeams connected thereto. The telescopic sunshade assembly is connected to the plurality of crossbeams. The telescopic sunshade assembly has a sunshade portion assembly, which includes a plurality of slender rods and a sunshade component extending therebetween. The drive system is configured to extend the telescopic sunshade assembly and retract the telescopic sunshade assembly. The drive system includes a hand crank and a force-bearing member, which has a first end configured to be wound by the hand crank and a second end connected to a drive rod. By tightening the force-bearing member on a first side of the drive rod to extend the sunshade component, the slender rods are separated from each other. By tightening the force-bearing member on a second side of the drive rod, the slender rods are moved relative to each other.

[0010] The sunshade structure disclosed herein includes a shade assembly. The shade assembly includes a shielding layer. The shielding layer includes a planar structure arranged at a position where a retracted shade portion of a telescopic sunshade assembly can be placed. One or more guide channels are spaced apart below and extend downward at the position of the shade layer. The length of the guide channel below the position of the shade layer is sufficient to enable some or all of the one or more shade portions to be moved below the shade layer. The shade layer can be a textile item that can be hung, for example, extending over the length of the guide channel for retracting the telescopic sunshade assembly. In one example, the shade layer is connected to cantilever rods spaced apart on opposite sides of the telescopic sunshade assembly. The cantilever rods are connected to the top surface of the crossbeam of the sunshade structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The following describes the technical highlights of the relevant technical features with reference to the accompanying drawings, which are intended to illustrate but not limit the present invention. In the accompanying drawings, similar reference characters always represent corresponding technical features in similar embodiments. The following is a brief description of each figure.

[0012] Figure 1 A front perspective view of a sunshade structure having a retractable sunshade assembly in an extended configuration for enhanced sunshade is one example of a sunshade structure.

[0013] Figure 2 for Figure 1 A front perspective view of a sunshade structure with the retractable sunshade assembly in a retracted state.

[0014] Figure 2A For similar Figure 2 , but with some external structures removed to show the Figure 1 and Figure 2 A transmission device for moving the telescopic sunshade assembly between configurations.

[0015] Figure 2B A bottom perspective view of an operating actuator and a retractable sunshade assembly illustrating one embodiment of a sunshade structure.

[0016] Figure 2C A top perspective detail view showing one embodiment of a sunshade structure.

[0017] Figure 3 for Figure 1 A perspective view of a corner assembly of a sunshade structure with some exterior structure removed to reveal a portion of a transmission that enables simultaneous movement of opposite sides of a retractable sunshade assembly.

[0018] Figure 3A-1 and Figure 3A-2 Additional detailed schematic diagrams of one embodiment of a corner assembly and a transmission including a drive belt and gear arrangement are provided.

[0019] Figures 3B-1 to 3B-5 Additional detailed schematic diagrams of another embodiment of a corner assembly and transmission including a gear and drive shaft arrangement are provided.

[0020] Figures 3C-1 to 3C-4 Additional detailed schematic diagrams of another embodiment of a corner assembly and a drive including a chain drive are provided.

[0021] Figure 4 A portion of a transmission relating to any of the embodiments disclosed herein is shown, including a second drive member, such as a drive belt.

[0022] Figure 5A hand crank portion of one of any transmissions disclosed herein is shown.

[0023] Figure 6 For Figure 1 A cross-sectional view of the sunshade structure taken at section 6-6 shown in FIG.

[0024] Figure 7 For Figure 1 A cross-sectional view of the sunshade structure taken at section 7-7 shown in FIG.

[0025] Figure 8 A side view of the movable sunshade panel assembly.

[0026] Fig. 9 For Figure 8 Detailed view of the removable sunshade panel assembly taken at area 9-9 shown in FIG.

[0027] Fig.10 For Figure 8 A top view of a cross section taken at area 10-10 shown in FIG.

[0028] Fig.11 for Figure 1 A schematic diagram of a modified embodiment of the sunshade structure is shown.

[0029] Figures 11A to 11E for Fig.11 Detail of the sunshade structure shown in . DETAILED DESCRIPTION

[0030] Although this specification has been described in detail various embodiments, it should be understood that this specification is illustrative only and should not be interpreted as limiting in any way. In addition, various applications of implementations and modifications thereof that may be expected by those skilled in the art are also included in the basic concepts described herein. Each feature described herein and the combination of two or more of these features are included in the protection scope of this application, as long as the features included in this combination do not contradict each other.

[0031] Figure 1 A sunshade structure 90 is shown that provides a convenient way to provide shade and also enables the user to reduce, minimize or eliminate shade when shade is not needed and / or a clear view of the sky is needed. The sunshade structure 90 includes a frame assembly 100 and a retractable sunshade assembly 102. Optional additional shade is provided by a movable sunshade assembly 106A and / or a movable sunshade assembly 106B. The movable sunshade assemblies 106A, 106B and the specific details of being set to be non-removable in some applications will be discussed in more detail below.

[0032] As discussed further below, the retractable sunshade assembly 102 can be configured to extend outward to provide shade, and to retract inward to provide an opening toward the sky. The cover assembly 104 extends over the retractable sunshade assembly 102 when the retractable sunshade assembly 102 is retracted. Figure 2C The cover assembly 104 is discussed in greater detail.

[0033] The frame assembly 100 is configured to be fixed to the ground. The frame assembly 100 may include a plurality of, for example, four upright poles. In one embodiment, the upright poles may include an upright pole 116 configured to embed a portion of the drive system 190 and / or a portion of the transmission 200. The frame assembly 100 may also include a plurality of upright poles 120. The upright poles 116, 120 may be arranged in an array, such as being configured as a square or rectangle in a polygon. The upright poles 116, 120 are configured as support beams for the frame assembly 100. The upright poles 116, 120 each include a bottom end 118A and a top end 118B. The bottom end 118A is configured to be fixed to the ground, such as being fixed to a hardscape, paving material, or foundation set in the ground. The top end 118B of the upright pole 116 may be enclosed, embedded, or set below and support a portion of the drive system 190 or the transmission 200. The top end 118B may be connected to one or more beams of the frame assembly 100.

[0034] The frame assembly 100 includes a horizontal support structure that can be connected to the top end 118B of the upright rod 116 and the top end of the upright rod 120. The support structure includes a front beam 108, a first side beam 110, a second side beam 112, and a rear beam 114. One or more of the beams can be directly or indirectly connected to one or more of the upright rods 116, 120. In one embodiment, the upright rods 116, 120 and the first side beams 110, the second side beams 112 include extrusions. For example, the first side beam 110 and the second side beam 112 include one or more first extrusions 122 extending between the two upright rods. The front beam 108 includes one or more second extrusions 130. The first extrusions 122, the second extrusions 130 include hollow members. In some cases, the first extrusions 122, the second extrusions 130 include a plurality of discrete channels that are configured to accommodate components of the shade structure 90, such as components of the transmission 200, as described below.

[0035] The extrusion connector 136 is used to connect two or more rods or beams together, for example, to connect the extrusion of the upright rod 116 to the front beam 108 and the first side beam 110. For example, the extrusion connector 136 includes a vertical branch 136A, which is configured to connect with the upright rod 116, such as inserted into the upright rod 116. The vertical branch 136A includes two corner portions, which are configured to slide into the corner section of the top end 118B of the upright rod 116, such as sliding into the extrusion of the channel. The extrusion connector 136 includes a front beam branch 136B, which is configured to cooperate with the lateral end portion of the front beam 108. The front beam branch 136B includes a C-shaped end profile. A portion of the C-shaped end profile is used to enclose a section of the interior space of the second extrusion 130, such as within its discrete channel. In one embodiment, the extrusion connector 136 includes a side beam branch 136C, which is configured to be inserted into the end of the first side beam 110 of the frame assembly 100. The side beam branch 136C has a C-shaped end profile configured to be inserted into a space in the first extrusion 122. The side beam branch 136C is inserted into a discrete channel of the first extrusion 122. The upright bar 120 can also be coupled with an extrusion connector 136 for connecting the front beam 108 with the second side beam 112 and / or one or more first side beams 110 with the rear beam 114.

[0036] The telescopic sunshade assembly 102 includes a sunshade section assembly 140, which is connected to the frame assembly 100 and can move relative to the frame assembly, for providing a sunshade device and a retracting device. The sunshade section assembly 140 includes a plurality of slender rods 144 extending between the first side beam 110 and the second side beam 112. Each slender rod 144 includes opposite ends, one adjacent to the first side beam 110 and one adjacent to the second side beam 112. The sunshade section assembly 140 also includes a drive rod 146. The drive rod 146 has the same structure as the slender rod 144. In various embodiments, the drive rod 146 is connected to a drive system 190 (discussed below) to move the sunshade section assembly 140 relative to the frame assembly 100.

[0037] The sunshade section assembly 140 further includes a plurality of guide members 148. The guide members 148 are connected to opposite ends of the elongated rod 144. The guide members 148 are connected to the frame assembly 100. Figure 7 It is shown that the guide member 148 can be connected to the first extrusion 122, for example, in the guide channel 126 thereof. The guide member 148 includes one or more rollers, for example two rollers, or a slider disposed in the guide channel 126. In one embodiment, a guide member 148 is disposed at each opposite end of each elongated rod 144. When the telescopic sunshade assembly 102 moves relative to the frame assembly 100, the guide member 148 of each sunshade section assembly 140 slides or rolls within the guide channel 126.

[0038] In one embodiment, the sunshade portion assembly 140 includes a sunshade member 152 disposed between adjacent elongated rods 144. The sunshade member 152 includes a textile disposed on the telescopic sunshade assembly 102, and the textile extends between the elongated rods adjacent thereto. The sunshade member 152 includes a large sheet that runs through more than two adjacent elongated rods 144. The sunshade member 152 may include a single continuous sheet that spans all the elongated rods. The drive rod 146 is connected to the adjacent elongated rods 144 through the sunshade member 152. The sunshade member 152 may be flexible so that when the telescopic sunshade assembly 102 is retracted, the sunshade member 152 is vertically looped between the adjacent elongated rods 144. Figure 2 It is shown that the retraction device can include a plurality of vertical sunshade members 152 in a loop.

[0039] The drive rod 146 is connected to the transmission 200 of the sunshade structure 90 through the first connection assembly 160. The first connection assembly 160 includes a connecting rod assembly 164, a bracket 172 and a guide 176. The guide 176 includes a plurality of components to facilitate the movement of the telescopic sunshade assembly 102 relative to the frame assembly 100. The guide 176 may include a low friction member, such as a roller or a slider. The guide 176 may be disposed in the guide channel 126 of the first extrusion 122. The bracket 172 may secure the guide 176 to the connecting rod assembly 164. The connecting rod assembly 164 may secure the first connection assembly 160 to a portion of the transmission 200. As discussed below, the connecting rod assembly 164 may be secured to a belt. The connecting rod assembly 164 includes a toothed member 168 configured to engage the belt. The connecting rod assembly 164 may include a chain engaging member, such as a flat array of sprocket teeth.

[0040] In one embodiment, one side of the telescopic sunshade assembly 102 includes a first connection assembly 160 connected to a transmission component. In another embodiment, the drive rod 146 is connected to the transmission component at each end. The drive rod 146 can be connected to a drive belt, chain or other transmission component at each end through the first connection assembly 160.

[0041] Figure 6Additional details of the connection between the sunshade component 152 and the frame assembly 100 are shown. The second side beam 112 includes a first extrusion 122, and the first extrusion 122 also includes a guide channel 126 and a guide channel 128. As described above, the guide channel 126 can be configured as one or more guides that support the elongated rod 144. A first connection assembly 160 can be provided to connect the sunshade component 152 to the guide channel 126 through a guide 176. A bracket 172 can be connected to the end of the guide 176 that extends outside the guide channel 126. The bracket 172 can be connected to the guide 176 at a first end and connected to a toothed member 168 at a second end. The toothed member 168 includes a first component that is engaged with a belt and is toothed and a second component that is configured to connect to the first component to form a belt unit. The guide 176 can be connected to the drive rod 146. In one embodiment, the end of the guide 176 located outside the guide channel 126 can be connected to the drive rod 146 through an angle bracket. Figure 4 The end of the drive rod 146 is shown Figure 6 The ends shown are opposite to each other. Figure 4 The connection of the end of the drive rod 146 shown can be with Figure 6 The connections at the ends of the drive rod 146 are shown to be identical.

[0042] Figure 2-3A-1 Additional details of the transmission 200 are shown, which can be engaged by the drive system 190 to move the telescopic shade assembly 102 between the retracted and extended (providing shade) configurations. The drive system 190 includes any control mechanism that a user can engage to cause movement of other components of the transmission 200. In the illustrated embodiment, the drive system 190 includes a hand crank 204 that can engage the drive system 190 to move the telescopic shade assembly 102. The hand crank 204 can be disposed on the upright pole 116. In the illustrated embodiment, the upright pole 116 is located on the short side of the rectangular array of uprights of the shade structure 90.

[0043] Figure 2AThe transmission device 200 is better illustrated by removing the frame structure of the front beam 108, the first side beam 110 and the second side beam 112 of the sunshade structure 90. The transmission device 200 includes a first toothed drive belt 220, a second toothed drive belt 240 and a third toothed drive belt 252. The first toothed drive belt 220, the second toothed drive belt 240 and the third toothed drive belt 252 rotate with the rotation of the hand crank 204. In one embodiment, the hand crank 204 rotates the first transmission gear 212, and the first toothed drive belt 220 is rotatably wound around the first transmission gear 212. The first toothed drive belt 220 is wound around a first driven gear 216 disposed opposite to the first transmission gear 212. The first driven gear 216 is disposed on the top end 118B of the upright rod 116. The first driven gear 216 is rotatably connected directly or indirectly to the extrusion connector 136.

[0044] The transmission device 200 is configured to realize the rotation of the first driven gear 216 to cause the rotation of other driving elements and driven elements. The first driven gear 216 is coupled to the second driving gear 232. The second driving gear 232 is connected to the gear assembly 234 (see Figure 3A-1 ) is coupled with the first driven gear 216. The gear assembly 234 enables the rotation of the first driven gear 216 to drive the rotation of the second driving gear 232. The second driving gear 232 can drive a transmission element disposed between the second driving gear 232 and the second driven gear 236. The transmission element is a second toothed transmission belt 240 disposed between the second driving gear 232 and the second driven gear 236. As described above, the second toothed transmission belt 240 is connected to the driving rod 146 of the sunshade portion assembly 140 through the first connecting assembly 160.

[0045] In some cases, the telescopic sunshade assembly 102 is driven on both sides. The transmission device 200 includes a transmission shaft 224 connected to the first driven gear 216. The transmission shaft 224 extends through the dedicated space in the second extrusion 130 of the front beam 108. The transmission shaft 224 is connected to the recess in the first driven gear 216 at the first end and is connected to the third drive gear 244 at the opposite end. The support member 226 is used to support the transmission shaft 224 in the middle part of the front beam 108. More than one support member 226 can be provided to support the transmission shaft 224 as needed. The third drive gear 244 is coupled to the third transmission gear 244 by a third toothed drive belt 252. The third drive belt 252 is an example of a transmission member for connecting the third drive gear 244 to the third driven gear 248. Other examples of hand crank 204 for transmitting rotation are discussed below.

[0046] Figure 4 and Figure 6-7A schematic diagram of the third toothed drive belt 252 connected to the retractable sunshade assembly 102 and the frame assembly 100 is shown. The first connecting assembly 160 is disposed between the third toothed drive belt 252 and the drive rod 146. The toothed member 168 is connected to the toothed side of the third toothed drive belt 252. The bracket 172 is connected to the toothed member 168 and the guide member 176, as described above. The guide member 176 is configured to slide or roll in the guide channel 126 of the first extrusion 122 of the second side beam 112 (see Figure 6-7 ). The third toothed drive belt 252 drives the first connecting assembly 160 to move, and the first connecting assembly 160 can move the driving rod 146. The sunshade component 152 is connected to the bottom surface of the driving rod 146. Therefore, the toothed member 168 moves toward the front beam 108 and extends outward, and in some cases stretches the sunshade component 152. The toothed member 168 moves away from the front beam 108 to retract, and in some cases causes one or more sunshade components 152 in an annular structure to be formed between the driving rod 146 and the adjacent slender rods 144. The driving rod 146 moves away from the front beam 108 to drive the adjacent slender rods 144 to retract the sunshade component 152, and in some cases causes one or more sunshade components 152 in an annular structure to be formed between the adjacent slender rods 144. The structure of the transmission device 200 in the first side beam 110 is the same as the structure of the transmission device 200 in the second side beam 112. The structure of the transmission device 200 in the second side beam 112 is the same as the structure of the transmission device 200 in the first side beam 110 .

[0047] As described above, movable shade panel assembly 106A and / or movable shade panel assembly 106B are connected to frame assembly 100 to provide shade as needed. As the sun moves lower in the sky, the shade from the vertical direction or support structure can better block the sun's rays. Figure 8-9The diagram illustrates a variety of movable assemblies provided. The movable sunshade assembly 106A includes a sunshade component 292, which is vertically supported by being connected to a top beam, such as a rear cross beam 114. The rear cross beam 114 includes an extrusion having one or more internal spaces disposed therein. The rear cross beam 114 also includes a guide channel 134 in which one or more clips 288 are mounted. The clips 288 are slidably mounted in the guide channel 134. The clips 288 are moved to a range of positions through the guide channel 134. A stop 300 is disposed at one or both ends of the elongated rod rear beam 114. The stop 300 is fixed in place along the guide channel 134. The sunshade component 292 includes a ring-shaped member 296 for engaging the clips 288. The ring-shaped member 296 slides into the hook portion of the clip 288 to fix the position of the sunshade component 292. In one example, the removable sunshade panel assembly 106A includes six clips 288 and six ring members 296 to support and distribute the weight of the sunshade component 292 on the rear beam 114. The connection of the removable sunshade panel assembly 106B to the frame assembly 100 is similar or identical to the removable sunshade panel assembly 106A. The removable sunshade panel assembly 106B has a similar structure to the removable sunshade panel assembly 106A.

[0048] The previous discussion describes the transmission device 200, which includes a drive belt to convert the rotation of the hand crank 204 of the drive system 190 into the linear movement of the drive rod 146 of the telescopic sunshade assembly 102. The first toothed drive belt 220, the second toothed drive belt 240 and the third toothed drive belt 252 have the advantages of being lightweight and also reliably achieving the movement of the telescopic sunshade assembly 102.

[0049] Figure 3B-1 to Figure 3B-5 A modified embodiment of the sunshade structure 90 incorporating gears and shaft drive into the transmission 200 is shown. Figure 3B-1 to Figure 3B-3 The hand crank 204 is shown coupled to a first worm gear 304. The first worm gear 304 meshes with a first driven gear 308 in a gear box 309, which is disposed in or supported by the upright rod 116. The first driven gear 308 is coupled to the drive shaft 310 at the lower end thereof. The upper end of the drive shaft 310 is coupled to a second worm gear 312. The second worm gear 312 rotates as the drive shaft 310 rotates. The second worm gear 312 drives a second driven gear 316 to rotate. The second driven gear 316 is coupled to the second drive gear 232 to drive the second drive belt 240. The second driven gear 316 is coupled to the drive shaft 224 for rotation of the drive shaft 224.

[0050] Figure 3B-4 to Figure 3B-5 A further modified embodiment of the transmission 200 is shown. As discussed above, with reference to Figure 3B-1 to Figure 3B-3In an embodiment, a gear transmission device is installed between the hand crank 204 and one or more belts in the first side beam 110 and the second side beam 112. The gear transmission device includes a first transmission bevel gear 324 connected to the hand crank 204. As described above, the rotation of the hand crank 204 directly drives the first driving bevel gear 324. The first driving bevel gear 324 acts on the first driven bevel gear 328. The first driven bevel gear 328 is coupled to the drive shaft 310. The drive shaft 310 is connected to the second driving bevel gear 332 at its top end. The second driving bevel gear 332 is connected to the second driven bevel gear 336 to drive the transmission shaft 224, and also drives the second driving gear 232 to drive the second toothed transmission belt 240. Figure 3B-1 to Figure 3B-5 An embodiment is provided which has the advantages of being more robust, less prone to wear and requiring less maintenance than a system for transmitting torque between the hand crank 204 and the gear with the first drive belt.

[0051] Figure 3C-1 to Figure 3C-4 A further modified embodiment is shown in which a chain transmits torque between the crank handle 204 and the elements of the transmission 200. The crank handle 204 can rotate a first drive sprocket 340 coupled to a first driven sprocket 344 via a first chain 348. The first driven sprocket 344 rotates with a second drive sprocket 352. The second drive sprocket 352 is provided to rotate and engage a second chain 356 to rotate the chain. The second chain 356 is connected to the second driven sprocket to support the rotation of the second chain 356. The second connecting assembly 160A connects the second chain 356 to the drive rod 146. The second connecting assembly 160A has a chain clamp 360, which is structured to engage and secure the bracket 172 to the second chain 356. The chain clamp 360 includes a linear array of sprocket teeth. The first driven sprocket 344 is connected to the drive shaft 224 for driving a belt or chain disposed at the second side beam 112 at the end of the drive shaft 224 and opposite to the first driven sprocket 344. Chain drives are more durable and require less maintenance than belts. Since chains are heavier than belts, a support member 226 similar to that discussed above is disposed in the extrusion of the first side beam 110 or the second side beam 112.

[0052] Figures 11A-11E A modified embodiment of the sunshade structure 90 is shown in which the transmission device 200 is modified to provide movement of the retractable sunshade assembly 102 by including a force bearing member drive system. The components of the sunshade structure 90 discussed above can be Figures 11A-11EIn the embodiment of the present invention, the crank handle 204 is provided. In addition, the hand crank 204 is connected to the modified transmission device 200 in the following manner. The transmission device includes an extension spool 384, which is wound and unwound around the extension spool through one end of the force-bearing member 380. The transmission device includes a retraction spool 388 connected to one end of the force-bearing member 380. The extension spool 384 and the retraction spool 388 rotate simultaneously through the gear set 392. The gear set 392 rotates when the crank handle 204 rotates. The force-bearing member 380 passes through the upright rod 116 from the gear set 392 to the top 118B of the upright rod 116. The force-bearing member 380 passes through the pulley 396 to guide the force-bearing member 380 along or through the front beam 108 of the frame assembly 100. The force-bearing member 380 passes through the first transmission mechanism 404 and the second transmission mechanism 408 to guide the force-bearing member 380 along the top side of the telescopic sunshade assembly 102. The force bearing member 380 passes through the pulley 400 connected to the rear beam 114. One end of the force bearing member 380 is connected to the end connector 412 on the first side of the driving rod 146. The force bearing member 380 is connected to the other end of the end connector 412 on the other side opposite to the first side of the driving rod 146.

[0053] The operation of the sunshade structure 90 in combination with the modified embodiment of the transmission device 200 including the force member 380 is as follows. If the telescopic sunshade assembly 102 is to be extended, the hand crank 204 is turned to wind the force member 380 around the extension spool 384. The winding of the force member 380 around the extension spool 384 causes the end of the force member 380 connected to the end connector 412 to move toward the front beam 108, thereby extending the telescopic sunshade assembly 102 outward. If the telescopic sunshade assembly 102 is extended, the telescopic sunshade assembly 102 can be retracted by rotating the force member 380 around the retraction spool 388. The rotation of the retraction spool 388 causes the pulley 400 to move toward the pulley 400 by the length of the force member 380 extending to the end connector 412 because the opposing forces are wound around the retraction spool 388. Figures 11A-11E The modified embodiment provides a relatively lightweight and simple structure of the retractable sunshade assembly 102 including the force bearing member 380. Replacement of the force bearing member 380 can be achieved as needed by simply passing a new force bearing member through the extension spool 384, the retraction spool 388, the pulleys 396, 400 and the first transmission mechanism 404, 408.

[0054] The cover assembly 104 includes a shielding layer 420 disposed above the telescopic sunshade assembly 102 when the telescopic sunshade assembly 102 is retracted. The shielding layer 420 is connected to the horizontal member of the frame assembly 100. The support rod 424 is connected to the first side beam 110 through the first bracket 428. The support rod 424 is connected to the second side beam 112 through the first bracket 428. The cover assembly 104 is disposed at a preset height above the guide channel 126 so that the guide member 148 is retracted and extended below the cover assembly 104. The shielding layer 420 extends from the rear beam 114 to the front beam 108. The length of the shielding layer 420 from front to back is preferably set to be longer than the cumulative thickness of the slender rod 144 and the driving rod 146 in the same direction. Therefore, all the rings of both of the retracting devices are disposed below the cover assembly 104. The cover assembly 104 can extend and protect the retractable sunshade assembly 102 from interference from some external factors, including the impact of sunlight and falling objects.

[0055] Illustrative expressions, such as "can", "may", "possibly", or "might", unless otherwise specified or understood in the context of use, are generally intended to convey the meaning of the specific implementations contained therein, and not the specific features, elements, and / or steps under other conditions. Therefore, such conditional language is generally not intended to imply that features, elements, and / or steps are in any way necessary for one or more implementations, or that one or more implementations necessarily include specific logic for execution, whether or not there is user input or prompting, and whether or not these features, elements, and / or steps are included or will be performed in any specific implementation.

[0056] As described herein, the terms "approximately," "roughly," and "substantially" refer to terms that are close to achieving a particular function or desired result. For example, the terms "approximately," "roughly," and "substantially" may refer to an amount that is less than 10% of the amount, less than 5% of the amount, less than 1% of the amount, less than 0.1% of the amount, and less than 0.01% of the amount. As another example, in a particular implementation, the terms "generally parallel" and "substantially parallel" refer to a value, quantity, or feature that deviates from being completely parallel by less than or equal to 15 degrees, 10 degrees, 5 degrees, 3 degrees, 1 degree, 0.1 degrees, or other degrees.

[0057] Some embodiments have been described in conjunction with the accompanying drawings. However, it should be understood that these figures are not drawn to scale. Distances, angles, etc. are merely illustrative and do not necessarily have a practical relationship to the actual size and layout of the equipment shown. Components may be added, deleted, and / or rearranged. In addition, any specific feature, aspect, implementation method, property, characteristic, quality, attribute, element, or similar method related to various other implementations herein may be applicable to all other implementations set forth herein. In addition, it should be recognized that any method described herein may be implemented using any device suitable for performing the steps described.

[0058] For the purposes of the present invention, some specific implementation details, product advantages, and related technical features with novelty are disclosed herein. It should be understood that, according to any particular implementation, not all of these advantages may be fully realized. Therefore, it is known to those skilled in the art that the present invention may be embodied or implemented in a manner that realizes one or a group of advantages as disclosed herein, without having to realize other implementations as disclosed or suggested herein.

[0059] Although the present invention has been disclosed in the content of certain preferred embodiments and examples, it will be understood by those skilled in the art that the present invention includes embodiments beyond the specific disclosure, as well as other alternative embodiments and / or uses of the present invention and obvious modifications and their equivalents. In addition, although several specific embodiments of the present invention have been shown and described in detail, other modifications made within the scope of protection of these inventions based on the present disclosure will be obvious to those skilled in the art. It is also expected that the implementation of various transformation combinations or sub-combinations between specific features and embodiments still falls within the scope of protection of the present invention. It should be understood that the various features and implementations of the disclosed embodiments can be combined or replaced with each other to form different styles disclosed in the present invention. In addition, the specific implementation steps of the implementation process and method disclosed in the present invention can be modified in any way, including by reordering and / or inserting additional and / or deleting the implementation steps of technical features. Therefore, the scope of protection of at least a part of the invention disclosed herein should not be limited by the above-mentioned specific disclosed embodiments. The limitations in the claims should be interpreted broadly based on the language used in the claims, without being limited to the embodiments described in this specification or during the application process, which should be interpreted as illustrative rather than restrictive.

Claims

1. A telescopic sunshade structure (90), characterized in that: include: A frame assembly (100) includes a plurality of upright poles (116, 120) and a plurality of cross beams connected thereto; A telescopic sunshade assembly (102) connected to a plurality of crossbeams, the telescopic sunshade assembly comprising a sunshade portion assembly (140), the sunshade portion assembly (140) comprising a plurality of slender rods (144) and sunshade components (152) extending between the rods; A drive system (190) configured to extend the telescopic sunshade assembly to an extension sunshade device and to retract the telescopic sunshade assembly to a retraction device; The slender rods (144) are separated from each other to extend the sunshade component (152) in the extended sunshade structure, and the slender rods (144) are relatively moved in the retracting device, wherein the sunshade component vertically forms a ring structure between adjacent slender rods (144); The drive system (190) comprises a transmission device (200) configured to move the telescopic sunshade assembly (102) between an extended sunshade device and a retracted sunshade device; the drive system (190) further comprises a hand crank (204) configured to apply torque to the transmission device (200); The cross beam includes two side beams, the side beams include one or more first extrusions (122), the first extrusions (122) include a first transmission channel (124), and the first transmission channel (124) is configured to fix a part of the transmission device (200), and the transmission device (200) is configured to move the telescopic sunshade assembly (102) between the retraction device and the sunshade device.

2. The telescopic sunshade structure (90) according to claim 1, characterized in that: The transmission device (200) comprises a plurality of gears and a second toothed transmission belt (240) arranged between the gears, the second toothed transmission belt (240) comprising gear teeth arranged to mesh with the plurality of gears, the second toothed transmission belt (240) being connected to a first connecting component (160), and the first connecting component (160) being connected to the sunshade component (140).

3. The telescopic sunshade structure (90) according to claim 2, characterized in that: The first connection assembly (160) comprises a toothed component (168) connected to the gear teeth of the second toothed transmission belt (240) and a bracket (172) connected to the driving rod (146) of the sunshade assembly (140).

4. The telescopic sunshade structure (90) according to claim 2, characterized in that: The plurality of gears and the second toothed transmission belt (240) are connected to the first side beam (110), and the transmission device (200) further comprises a plurality of second gears connected to the third toothed transmission belt (252), and the third toothed transmission belt (252) is connected to the second side beam (112).

5. The telescopic sunshade structure (90) according to claim 2, characterized in that: The hand crank (204) is mechanically connected to the transmission device (200) via the second toothed transmission belt (240), chain or transmission shaft.

6. The telescopic sunshade structure (90) according to claim 1, characterized in that: The transmission device (200) comprises a plurality of sprockets and a second chain (356) arranged therebetween, the second chain (356) comprising chain links arranged to mesh with the plurality of sprockets, the second chain (356) being connected to a second connecting assembly (160A), and the second connecting assembly (160A) being connected to the sunshade assembly (140).

7. The telescopic sunshade structure (90) according to claim 1, characterized in that: One of the cross beams is a cross beam that is arranged between the first side beam (110) and the second side beam (112) and connects the first side beam (110) and the second side beam (112), and the cross beam includes a second extruded member (130), and the second extruded member (130) includes a second transmission channel (132), and the second transmission channel (132) is configured to fix a part of the transmission device (200), and the transmission device (200) is configured to move the telescopic sunshade assembly (102) between the retraction device and the sunshade device.

8. The telescopic sunshade structure (90) according to claim 1, characterized in that: The sunshade structure comprises a plurality of annular structures formed between two slender rods (144), and a sunshade component (152) arranged between the two slender rods (144) and penetrating two or more adjacent slender rods (144).

9. The telescopic sunshade structure (90) according to claim 1, characterized in that: The transmission device (200) comprises a force-bearing component (380), and the force-bearing component (380) is configured to move the slender rod (144) away to extend the sunshade component (152) outward in the sunshade device, and to relatively move the slender rod (144) in the retracting device.

10. The telescopic sunshade structure (90) according to claim 9, characterized in that: The transmission device (200) further comprises a contraction spool connected to the first end of the force-bearing member (380), and a second end of the force-bearing member (380) connected to the driving rod, wherein the first end of the force-bearing member (380) is wound around the contraction spool to apply an extension force to the driving rod, and the contraction spool releases the force-bearing member (380) when a contraction force opposite to the extension force is applied thereto.

11. The telescopic sunshade structure (90) according to claim 9, characterized in that: A portion of the force-bearing component (380) is suspended above the telescopic sunshade assembly (102).

12. The telescopic sunshade structure (90) according to claim 1, characterized in that: The telescopic sunshade structure (90) further comprises a covering assembly (104) supported by the frame assembly (100) to cover the sunshade components that vertically form a ring structure in the retractable structure.

13. A telescopic sunshade structure (90), characterized in that: The sunshade structure comprises: A frame assembly (100) comprising a plurality of upright poles (116, 120), a plurality of first side beams (110) and second side beams (112) connected to the top ends of the upright poles (116, 120), and a front beam (108) extending between the two upright poles; A telescopic sunshade assembly (102) comprises a sunshade section assembly (140), wherein the sunshade section assembly (140) comprises a plurality of slender rods (144), a driving rod (146) and a sunshade component (152), wherein each slender rod (144) is connected to a first side beam (110) and a second side beam (112) via a guide member (148), and the driving rod (146) is connected to the side beam via a first connecting assembly (160); A drive system (190) comprising a hand crank (204), wherein the hand crank (204) is connected to one of the upright rods and is connected to a transmission device (200), wherein the transmission device (200) is connected to one or more first side beams (110) and second side beams (112), and the drive system (190) is configured to operate the transmission device (200) to drive the drive rod (146) to extend the telescopic sunshade assembly (102) to the sunshade device and to retract the telescopic sunshade assembly (102) to the retracting device; wherein the elongated rods (144) are separated from each other to extend the sunshade member (152) in the sunshade device, and the elongated rods (144) are moved toward each other in the retracting device, wherein the sunshade member vertically forms a ring structure between adjacent elongated rods (144); The transmission device (200) comprises a toothed transmission belt connected to a driving gear at one end and connected to a driven gear at a second end, the toothed transmission belt being connected to a toothed member (168) of the first connecting assembly (160), and the first connecting assembly (160) being connected to the driving rod (146); The toothed transmission belt comprises a second toothed transmission belt (240), the toothed member (168) comprises a first toothed member connected to a first end of a drive rod, and the transmission device comprises a third toothed transmission belt (252) connected to a second toothed member of a first connecting assembly (160), the first connecting assembly (160) being connected to a second end of the drive rod (146); The second toothed transmission belt (240) and the toothed member (168) are arranged in the first transmission channel (124) of the first extruded member (122), and the third toothed transmission belt (252) and the third toothed member are arranged in the first transmission channel (124) of the first extruded member (122); The transmission device (200) includes a chain, a gear for driving a drive shaft, or a rope segment arranged between a hand crank and a driven sprocket, a driven gear, or a pulley aligned with a channel arranged to pass through one of the first side beam (110) and / or the front beam (108).

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