TWM672850U - Rolling structure - Google Patents

Abstract

A retractable structure is designed to be fixed to a load-bearing surface and includes a mounting frame, a fixed shaft, at least one positioning device, and a flexible curtain. The mounting frame is fixed to the load-bearing surface. The fixed shaft is fixed to the mounting frame. The at least one positioning device includes an inner sleeve, an outer sleeve, and a spring element. The inner sleeve is mounted on and fixed to the fixed shaft. The outer sleeve is rotatably mounted on the inner sleeve. The outer sleeve and the inner sleeve are coaxially arranged. The spring element is wound into multiple turns, with opposite ends of the spring element fixed to the outer sleeve and the inner sleeve, respectively. One side of the flexible curtain is fixed to the outer sleeve.

Description

Rolling structure

The present invention relates to a rolling structure, and more particularly to a rolling structure comprising a flexible curtain.

Typically, to adjust the amount of outdoor light entering a room through a window, a roller blind mechanism includes a lift mechanism that raises or lowers the blind according to the desired amount of light. Furthermore, to allow the user to conveniently raise or lower the blind, a traditional roller blind mechanism includes a pull cord. When the user pulls the cord, it drives the lift mechanism, causing the blind to rise or fall.

However, such a pull cord hangs on one side of the window and does not comply with the safety regulations of most countries. In other words, the current roller blind mechanism cannot allow the user to conveniently raise or lower the roller blind while complying with safety regulations.

The invention provides a retractable structure that allows the user to easily raise or lower the flexible curtain while complying with safety regulations through the cooperation of an elastic piece with a coaxially arranged outer sleeve and inner sleeve.

The roll-up structure disclosed in one embodiment of the present invention is designed to be fixed to a supporting surface and includes a mounting frame, a fixed shaft, at least one positioning device, and a flexible curtain. The mounting frame is fixed to the supporting surface. The fixed shaft is fixed to the mounting frame. The at least one positioning device includes an inner sleeve, an outer sleeve, and a spring element. The inner sleeve is mounted on and fixed to the fixed shaft. The outer sleeve is rotatably mounted on the inner sleeve. The outer sleeve and the inner sleeve are coaxially arranged. The spring element is wound into multiple turns, with opposite ends of the spring element fixed to the outer sleeve and the inner sleeve, respectively. One side of the flexible curtain is fixed to the outer sleeve.

According to the retractable structure disclosed in the above-mentioned embodiment, the outer sleeve and inner sleeve are coaxially arranged, and the opposite ends of the elastic sheet, which is wound into multiple coils, are fixed to the outer sleeve and the inner sleeve respectively. Therefore, the user simply moves the flexible screen to the desired height. The elastic force generated by the elastic sheet will hold the flexible screen in place when the user releases the elastic sheet. This allows the user to easily raise or lower the flexible screen while ensuring that the retractable structure meets safety regulations.

The following detailed description of the features and advantages of the embodiments of the present invention is sufficient to enable anyone with ordinary skill in the art to understand the technical content of the embodiments of the present invention and implement them accordingly. Furthermore, based on the disclosure, patent application scope, and drawings in this specification, anyone with ordinary skill in the art can easily understand the relevant objectives and advantages of the present invention. The following embodiments further illustrate the concepts of the present invention in detail and are not intended to limit the scope of the present invention in any way.

Please refer to Figures 1 to 3. Figure 1 is a perspective view of a rolling structure according to an embodiment of the present invention. Figures 2 and 3 are exploded perspective views of the rolling structure in Figure 1.

In this embodiment, the rolling structure 10 is fixed to a supporting surface (not shown) and includes a fixing frame 100, a fixing shaft 150, a plurality of positioning devices 200, two sets of mounting shafts 300, two bearings 350, two supporting covers 400, a roller 450, and a flexible curtain 500. The supporting surface is, for example, a wall.

The fixing frame 100 is used to be fixed to a supporting surface. In this embodiment, the fixing frame 100 includes, for example, two fixing plates 110. Each fixing plate 110 has a protruding plate 111 for fixing to the supporting surface. The fixing shaft 150 is fixed to the fixing frame 100. Specifically, the opposite ends of the fixing shaft 150 are fixed to the two fixing plates 110.

In this embodiment, these positioning devices 200 are axially separated from each other. Furthermore, each positioning device 200 includes an inner sleeve 210, an outer sleeve 220, and a spring element 230. The inner sleeve 210 is sleeved and fixed to the fixed shaft 150. The outer sleeve 220 is rotatably sleeved on the inner sleeve 210. The outer sleeve 220 and the inner sleeve 210 are coaxially arranged, for example, along a central axis L. In this embodiment, the outer sleeve 220 includes, for example, a base 221 and a side cover 222. The side cover 222 is disposed on one side of the base 221. The spring element 230 is located within the base 221 and is shielded by the side cover 222. The elastic member 230 is wound into multiple turns, for example, around the central axis L. In addition, opposite ends of the elastic member 230 are fixed to the base 221 of the outer sleeve 220 and the inner sleeve 210 respectively.

In this embodiment, the elastic member 230, for example, includes a first elastic state and a second elastic state. The elastic force generated by the elastic member 230 in the first elastic state is greater than the elastic force generated in the second elastic state. During the process of gradually unfolding from a fully retracted state, the elastic member 230 first enters the second elastic state, then transitions to the first elastic state, and then transitions again to the second elastic state.

Please refer to Figures 2 to 4. Figure 4 is a partial enlarged view of the three-dimensional cross-section of the rolling structure in Figure 1 along the cutting line 4-4.

Two sets of mounting shafts 300 are fixed to the two fixed plates 110. The opposite ends of the fixed shaft 150 are fixed to the two sets of mounting shafts 300. Two supporting covers 400 are rotatably mounted on the two sets of mounting shafts 300 via two bearings 350. Each supporting cover 400 includes a cover body 410 and an assembly body 420. The assembly body 420 protrudes axially from the cover body 410 and is, for example, fan-shaped.

The reel 450 is sleeved on the outer sleeve 220 of the positioning devices 200. Specifically, the reel 450 has, for example, an axial through-hole 451. The positioning devices 200 are positioned within the axial through-hole 451. The fixed shaft 150 extends through the axial through-hole 451, the cover 410 of the two supporting cover plates 400, and the assembly 420. The two covers 410 of the two supporting cover plates 400 are respectively disposed at opposite ends of the reel 450 and shield the axial through-hole 451. Furthermore, the reel 450 is positioned between the two fixed plates 110.

As shown in Figures 3 and 4 , assembly 420 has multiple first snap-fit structures 421. Roll 450 has multiple second snap-fit structures 452. These first snap-fit structures 421 are arranged along a circumferential direction C of roll 450. These second snap-fit structures 452 are also arranged along circumferential direction C. The first snap-fit structures 421 and the second snap-fit structures 452 are matching concave-convex structures that engage with each other. For example, the first snap-fit structures 421 are snap-fit grooves, and the second snap-fit structures 452 are snap-fit bumps.

Please refer to Figures 3 and 5. Figure 5 is a cross-sectional view of the reel structure in Figure 1 taken along section line 5-5. The reel 450 further has a plurality of third snap-fit structures 453. The base 221 has a plurality of fourth snap-fit structures 223. These third snap-fit structures 453 are arranged along the circumferential direction C. These fourth snap-fit structures 223 are arranged along the circumferential direction C. The third snap-fit structures 453 and the fourth snap-fit structures 223 are matching concave-convex structures that engage with each other. For example, the third snap-fit structure 453 is a snap-fit groove formed between adjacent second snap-fit structures 452, while the fourth snap-fit structure 223 is a snap-fit protrusion.

As shown in Figure 5 , one side of the flexible screen 500 is fixed to the roller 450. Alternatively, one side of the flexible screen 500 is fixed to the outer sleeve 220 via the roller 450. For example, the flexible screen 500 has a fixed side 510 and a lifting side 520 that are opposite each other. The fixed side 510 is fixed to the roller 450. The lifting side 520 of the flexible screen 500 is provided with a handle 530 to facilitate operation of the flexible screen 500.

It should be noted that, in this embodiment, two positioning devices 200 are schematically shown, but the present invention is not limited thereto. In other embodiments, the number of positioning devices can be adjusted to one or more than three according to the size of the flexible screen.

Please refer to Figures 2 and 6-8, which illustrate the use of the retractable structure in Figure 1. When the gripping plate 530 is gripped, it can be pulled in a downward direction D1 or pushed in an upward direction D2 opposite to the downward direction D1, and positioned at any desired height with the assistance of the elastic member 230. Specifically, as shown in Figures 2 and 6, when the flexible screen 500 is fully retracted onto the reel 450, the elastic member 230 is in the first elastic state. As shown in Figures 2 and 7, when the flexible screen 500 is partially retracted onto the reel 450, the elastic member 230 remains in the first elastic state. As shown in Figures 2 and 8 , when the flexible screen 500 is fully deployed from the roller 450, the elastic member 230 remains in the first elastic state. In other words, no matter how the flexible screen 500 is deployed (i.e., no matter the height of the lifting side 520), the elastic member 230 remains in the first elastic state and provides a nearly constant elastic force. In this way, whether the gripping plate 530 is pulled in the downward direction D1 to unfold the flexible screen 500 or is pushed in the upward direction D2 to retract the flexible screen 500, the user can use similar force to operate the gripping plate 530 to maintain a good hand feel and release the gripping plate 530 at any time to allow the elastic member 230 to position the lifting side 520 at any height.

Furthermore, with the assistance of the bearings 350 , the two support covers 400 can rotate more smoothly relative to the assembly shaft 300 , making it easier for the user to operate the flexible screen 500 (i.e., operating the flexible screen 500 is more labor-saving).

According to the retractable structure disclosed in the above-mentioned embodiment, the outer sleeve and inner sleeve are coaxially arranged, and the opposite ends of the elastic sheet, which is wound into multiple coils, are fixed to the outer sleeve and the inner sleeve respectively. Therefore, the user simply moves the flexible screen to the desired height. The elastic force generated by the elastic sheet will hold the flexible screen in place when the user releases the elastic sheet. This allows the user to easily raise or lower the flexible screen while ensuring that the retractable structure meets safety regulations.

Although the present invention is disclosed above with reference to the aforementioned embodiments, they are not intended to limit the present invention. Anyone skilled in the art may make slight modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection for the present invention shall be determined by the scope of the patent application attached to this specification.

10: Rolling Structure 100: Fixing Frame 110: Fixing Plate 111: Protruding Plate 150: Fixed Shaft 200: Positioning Device 210: Inner Sleeve 220: Outer Sleeve 221: Base 222: Side Cover 223: Fourth Snap Structure 230: Spring Component 300: Assembly Shaft 350: Bearing 400: Support Cover 410: Cover Body 420: Assembly Body 421: First Snap Structure 450: Roller 451: Axial Perforation 452: Second Snap Structure 453: Third Snap Structure 500: Flexible Curtain 510: Fixed Side 520: Lifting Side 530: Grip Plate L: Center Axis C: Circumferential Direction D1: Descending Direction D2: Ascending Direction

Figure 1 is a perspective view of a roll-up structure according to an embodiment of the present invention. Figures 2 and 3 are exploded perspective views of the roll-up structure in Figure 1. Figure 4 is a partially enlarged view of the perspective cross-sectional view of the roll-up structure in Figure 1 taken along section line 4-4. Figure 5 is a cross-sectional view of the roll-up structure in Figure 1 taken along section line 5-5. Figures 6 through 8 illustrate the use of the roll-up structure in Figure 1.

10: Rolling structure

100: Fixed bracket

110: Fixed plate

111: Raised plate

150: Fixed axis

200: Positioning device

210: Inner sleeve

220: Outer sleeve

221: Base

222: Side cover

230: Shrapnel

300: Assembly shaft

350: Bearings

400: Support cover

410: Cover

420:Assembly

450: Reel

451: Axial perforation

500: Flexible Curtain

Claims (10)

A rolling structure is fixed to a bearing surface and includes: a fixing frame for fixing to the bearing surface; a fixed shaft fixed to the fixing frame; at least one positioning device, including an inner sleeve, an outer sleeve and an elastic piece, the inner sleeve is mounted on and fixed to the fixed shaft, the outer sleeve is rotatably mounted on the inner sleeve, the outer sleeve and the inner sleeve are arranged coaxially, the elastic piece is wound into multiple turns, and the opposite ends of the elastic piece are respectively fixed to the outer sleeve and the inner sleeve; and a flexible curtain, one side of which is fixed to the outer sleeve. As described in claim 1, the elastic sheet member includes a first elastic state and a second elastic state. The elastic force generated by the elastic sheet member in the first elastic state is greater than the elastic force generated by the elastic sheet member in the second elastic state. During the process of gradually unfolding the elastic sheet member from a fully retracted state, the elastic sheet member will first be in the second elastic state, then convert to the first elastic state, and then convert to the second elastic state again. When the elastic curtain is fully retracted in the outer sleeve, the elastic sheet member is in the first elastic state. When the elastic curtain is fully unfolded from the outer sleeve, the elastic sheet member is in the first elastic state. The rolling structure as described in claim 1, wherein the fixing frame includes two fixing plates, and the opposite ends of the fixing shaft are respectively fixed to the two fixing plates. The rolling structure as described in claim 3 further includes a roller, which is sleeved on the outer sleeve, one side of the flexible curtain is fixed to the roller, and the roller is located between the two fixed plates. The winding structure as described in claim 4 further includes two supporting covers, the roller has an axial through-hole, the at least one positioning device is located in the axial through-hole, the fixed axis passes through the axial through-hole and the two supporting covers, the two supporting covers are respectively arranged at the opposite ends of the roller and cover the axial through-hole, and the two supporting covers are respectively rotatably arranged on the two fixed plates. The retracting structure as described in claim 5 further includes two sets of shafts and two bearings, the two sets of shafts are respectively fixed to the two fixing frames, the opposite ends of the fixing shaft are respectively fixed to the two sets of shafts, and the two supporting cover plates are respectively rotatably arranged on the two sets of shafts through the two bearings. A rolling structure as described in claim 5, wherein the two supporting cover plates each include a cover body and an assembly body, the assembly body protrudes axially from the cover body, the assembly body has a plurality of first snap structures, the reel has a plurality of second snap structures, the first snap structures are arranged along the circumferential direction of the reel, and the second snap structures are arranged along the circumferential direction, the first snap structures and the second snap structures are concave-convex structures that match each other and are engaged with each other. The rolling structure as described in claim 7, wherein the outer sleeve includes a base and a side cover, the elastic piece is located in the base, and the side cover is arranged on one side of the base and covers the elastic piece. As described in claim 8, the winding structure, wherein the reel further has multiple third snap-fit structures, the base has multiple fourth snap-fit structures, the third snap-fit structures are arranged along the circumferential direction, the fourth snap-fit structures are arranged along the circumferential direction, the third snap-fit structures and the fourth snap-fit structures are matching concave-convex structures and are engaged with each other. The rolling structure as described in claim 1, wherein the number of at least one positioning device is multiple and the positioning devices are axially separated from each other.