TW202239358A - Curtain with position limiting device capable of preventing upper end of curtain cloths from lowering than lower end - Google Patents

Abstract

The invention is a curtain with position limiting device comprising: a position limiting device having a seat body, a screw, a gear rod, and a linkage member, wherein the screw and the gear rod are pivotally arranged in the seat body as separation disposition, and one end of the screw is provided with a stopper, and the outer part of the linkage member has a tooth surface meshed with the gear rod, and the linkage member is provided with a screw hole screwed to the screw; an upper reel and the lower reel respectively passing through the screw and the gear rod. When the lower reel releases a lower winding rope, the linkage member will be moved away from the stopper. When the upper reel releases an upper winding rope, the linkage member will move close to the stopper. By adjusting the position of the linkage member, the traction position of the upper winding rope can be prevented from exceeding in the traction position of the lower winding rope.

Description

Curtain with limit device

The present invention is related to a curtain, more specifically, it refers to a curtain with a limit device that can prevent the upper end of the curtain from being lower than the lower end.

According to the known curtain, in order to be able to adjust the position of the curtain on it, a stay cord set is used, through which the stay cord set is threaded on the curtain, and the position of the stay cord set can be adjusted to control the lifting position of the curtain; In order to control the position of the light or line of sight, there are also two pull cord sets on the curtain, one of which is directly or indirectly connected to the upper end of the curtain, and the other pull cord set is set at the lower end of the curtain. ;Adjust the lifting position of the two stay cord sets, in addition to adjusting the position of the lower end of the cord through the stay cord set below the curtain, it is also possible to adjust the position of the upper end of the cord through the stay cord set above the cord, Allow the upper and lower end positions of the curtain to be adjusted.

However, there is no interlocking device between the two known cord sets. When the position of the cord set above the curtain is too loose and larger than that of the cord set below the curtain, the cord will form excessively. The released folds further squeeze the curtain. In addition to being visually unsightly, the position exchange of the two pull cord sets may also cause hooking or knotting. Then affect the operation of the curtain lifting.

The main purpose of the present invention is to provide a limiting device used for curtains, which can limit the rolling position of the rope winding device of the curtains. .

Another object of the present invention is to provide a curtain with two cord winding devices, the position of which can be adjusted when the two cord winding devices are rolled, so as to prevent the upper cord winding device from over-rotating.

The curtain with the limiting device provided by the present invention includes: one track; At least one curtain, in a sheet-like structure, has an upper end and a lower end; An upper rolling device, installed in the upper rail, has an upper reel and at least one upper reel device; the upper reel can be rotated under force, and drives each of the upper reel devices to rotate with the upper reel; each of the upper reels There is an upwinding rope in the device, and each upwinding rope is connected to the upper end of the curtain, and can drive the upper end of the curtain to rise and fall; The lower rolling device is installed in the upper rail, and has a lower reel and at least a lower reel device; the lower reel can be rotated under force, and drives each of the lower reel devices to rotate with the lower reel; each of the lower reel devices is respectively There are lower winding ropes, each of the lower winding ropes is connected to the lower end of the curtain, and can drive the lower end of the curtain to rise and fall; A position limiting device has a seat body, a screw rod, a gear rod and a linkage; the screw and the gear rod are pivotally arranged in the base at intervals; one end of the screw rod is provided with a stopper; the linkage outside There is a tooth surface meshed with the gear rod, and a screw hole is set in the screw rod in the linkage member; the upper reel and the lower reel are respectively installed in the screw rod and the gear rod, when the lower When the reel releases the lower winding rope, the interlocking member will be far away from the stop portion, and when the upper reel releases the upper winding rope, the interlocking member will be close to the stop portion.

In this way, when the upper rolling device drives the upper end of the curtain close to the lower end of the curtain, which is the lower rolling position, the link of the limiting device will be relatively close to the stopper, thereby limiting the upper rolling device scrolling.

Please refer to Fig. 1 to Fig. 4, which is a curtain 10 of a preferred embodiment of the present invention, which includes: a curtain 20, an upper rail 30, an upper rolling device 40, a lower rolling device 50 and a limit device 60; the upper rail 30 is equipped with the upper rolling device 40 and the lower rolling device 50, which can respectively drive the upper and lower ends of the curtain 20 to change the position; the limiting device 60 is arranged on the upper rolling device Between the moving device 40 and the lower scrolling device 50, a limit effect can be produced to prevent the release position of the upper scrolling device 40 from being too low, wherein:

The cord 20 has a sheet-like structure and has an upper end 21 and a lower end 22; the lower end 22 of the cord 20 is connected with a lower rail:

The upper rail 30 is arranged on the top of the curtain 20, and an accommodating space 31 is arranged therein. The upper scrolling device 40, the lower scrolling device 50 and the limiting device 60 are arranged in the accommodating space 31. The upper rolling device 40 and the lower rolling device 50 are arranged in parallel in the accommodating space 31 of the upper rail 30;

The upper rolling device 40 is arranged on the rear side of the accommodating space 31 of the upper rail 30, and includes an upper reel 41, three upper reeling devices 42 and an upper pull wire group 43; Placed in the space 31, the upper winding devices 42 are installed on the upper reel shaft 41, and the upper winding devices 42 are respectively provided with an upper winding rope 421, one end of which is wound in the upper winding rope device 42, and the other One end (bottom) is connected to the upper end 21 of the curtain 20. When the upper reel 41 rotates, it will drive the upper winding devices 42 to wind up or release the upper winding ropes 421, and the upper end 21 of the curtain 20 can be adjusted. position; the upper reel 41 is also provided with a transmission gear 411 near the end side of the accommodating space 31; A transmission gear 431 is arranged relative to the transmission gear 411, and the two transmission gears 411, 431 are engaged with each other. The upper stay wire group 43 is also provided with a traction part 432, which can be formed by a rope or a bead chain. The part 432 can drive the upper pull wire group 43 to rotate, and rotate the transmission gear 431 synchronously, so that the transmission gear 411 can be driven to drive the upper reel 41 to rotate, and when the upper reel 41 rotates, it will also drive the upper reel 41. The device 42 rotates, and then the length of the winding rope 421 is adjusted to be released;

The lower rolling device 50 is arranged on the front side of the accommodating space 31 of the upper rail 30, spaced from the upper rolling device 40, and includes a lower winding shaft 51, three lower winding devices 52 and a lower pull wire group 53; The lower reel 51 is arranged horizontally in the accommodating space 31 and is located on the front side of the upper reel 41. The lower reel 51 is recessed with a groove 511 along the axial direction; the lower reel devices 52 are installed on the lower reel. 51, the lower winding devices 52 are respectively provided with a lower winding rope 521, one end of which is wound in the lower winding rope device 52, and the other end (bottom) is connected to the curtain connected to the lower end 22 of the curtain 20. The lower rail, when the lower reel 51 rotates, it will drive the lower reel devices 52 to retract or release the lower reel ropes 521, and the position of the lower end 22 of the curtain 20 can be adjusted; one side end of the lower reel 51 is provided with The pull-down wire group 53, the pull-down wire group 53 and the upper pull-wire group 43 are respectively located at the two ends of the upper rail 30, and are all located at the front side; the pull-down wire group 53 is also provided with a pulling part 531, the pulling The part 531 can be made of a rope or a bead chain. The traction part 531 can drive the pull-down wire group 53 to rotate, and rotate the lower reel 51 synchronously. When the lower reel 51 rotates, it will also drive the lower reel 52 to rotate. , and then adjust the length of the lower winding rope 521 to be released;

The limiting device 60 has a base 61, a screw 62, a gear rod 63 and a link 64; the base 61 is arranged in the accommodation space 31 of the upper rail 30, the screw 62 and the gear rod 63 They are respectively pivotally arranged at the front and back ends of the seat body 61. The outer surface of the screw rod 62 has external threads, and one end of the screw rod 62 is provided with a stopper 621, and the end surface of the stopper 621 is provided with a protrusion 622; The outer surface of the gear rod 63 forms a gear, and the axis of the gear rod 63 is provided with a limiting groove 631. The limiting groove 631 is a polygonal hole, which is a hexagonal hole in the present embodiment. A limit block 632 is slidably sleeved inside the groove 631, and the outer side of the limit block 632 has a polygonal shape, which is hexagonal in this embodiment and is complementary to the limit groove 631. The center of the limit block 632 is provided with a The perforation 633 is provided with a block 634 protruding from the perforation 633; the outer side of the linkage 64 has a tooth surface 641 engaged with the gear rod 63; the inner side of the linkage 64 is formed with a screw hole 642, and the linkage 64 The screw hole 642 is screwed on the screw rod 42, and a stop block 643 is arranged on the end surface of the linkage member 64 near the stop portion 21, so that when the gear rod 63 rotates, the tooth surface 641 of the linkage member 64 will Along with this gear rod 63 rotations, and make the screw hole 642 of this linkage 64 screw back and forth relative to this screw rod 62, and can change the position of this linkage 64 on this screw rod 62; When this screw rod 62 rotates, The tooth surface 641 of the linkage 64 will be limited by the gear rod 63 and cannot rotate, so the screw hole 642 of the linkage 64 will move relative to the screw rod 62 in the axial direction, so that the linkage 64 The stop block 643 on the end surface can be close to or away from the stop portion 621 of the screw rod 62 . In this embodiment, the reel 51 under the lower scrolling device 50 passes through the gear rod 63 and the stopper 632, the perforation 633 of the stopper 632 can penetrate into the lower reel 51, and the card The block 634 is locked in the groove 511, so that the limiting block 632 can only slide axially on the lower scroll shaft 51, and the limiting block 632 can roll along with the lower scroll shaft 51. When the limiting block When 632 is not installed in the limiting groove 631, the gear lever 63 does not rotate with the lower scroll 51, and when the limiting block 632 is installed in the limiting groove 631, the limiting block 631 can move The limit groove 631 enables the gear rod 63 to be driven by the lower reel 51; the upper reel 41 of the upper scroll device 40 passes through and drives the screw 62; in operation, when the lower reel 51 drives the lower When the winding rope 521 under the winding device 52 is released, the gear lever 63 will drive the stop block 643 of the link 64 away from the projection 622 of the stopper 621 of the screw rod 62; When the spool 41 above the 40 drives the winding rope 421 on the upper winding devices 42 to release, the screw 62 will drive the linkage 64 to move towards the stop 621. Therefore, when the linkage 64 moves When it is close to the position of the stopper 621, the stop block 643 of the linkage 64 will snap into the projection 622 on the stopper 621, so that the linkage 64 cannot continue to move. At this time, the upper scroll 41 cannot Release the upper winding ropes 421 or the lower winding shaft 51 can no longer retract the lower winding ropes 521; in addition, when the limiting block 632 is not placed in the limiting groove 631, the lower winding shaft 51 will not drive the The action of the gear rod 63 can drive the screw rod 62 by rotating the upper reel 41, so that the screw rod 62 can drive the link 64 to change its position, but the gear rod 63 will not drive the lower reel 51 and the lower winding device 52 to rotate Through this method, the position of the linkage member 64 can be adjusted. After the adjustment is completed, the limit block 632 is inserted into the limit groove 631 , and the gear rod 63 can be linked with the lower scroll shaft 51 .

3 and 5, when the curtain 20 is fully folded, the upper end 21 and the lower end 22 are quite close to the position of the upper rail 30, and the stopper of the link 64 of the limiting device 60 The stop block 643 is stuck against the protrusion 622 on the blocking portion 621, because the upper end 21 of the curtain 20 is restricted by the upper rail 30, so the winding rope 421 on the upper winding device 42 and the winding rope 421 under the lower winding device 52 The winding ropes 521 cannot be retracted, and the upper rolling device 40 is affected by the stop block 643 on the end surface of the linkage 64 near the protrusion 622 on the end surface of the stop part 621, so that the winding ropes on the upper winding devices 42 421 can not be released downwards; please refer to Fig. 6 and shown in 7, at this time, only the lower winding devices 52 of the lower rolling device 50 can release the lower winding ropes 521;

When the lower winding devices 52 of the lower rolling device 50 release the lower winding ropes 521, the lower winding ropes 521 can drive the lower end 22 of the curtain 20 to move away from the upper rail 30, thereby making the lower end 22 move away from the upper rail 30. The curtain 20 can increase the distance between the upper end 21 and the lower end 22 to open the curtain 20. At this time, the lower winding shaft 51 drives the lower winding devices 52 to release the lower winding ropes 521. The gear rod 63 is also driven by the lower scroll 51 to rotate, and the gear rod 63 also gears the tooth surface 641 of the linkage 64 to rotate, so that the linkage 64 moves away from the stop portion 621 .

When the link 64 is away from the stopper 621 of the screw 62, the screw 62 can rotate freely without being restrained by the link 64; please refer to FIGS. The upper reel 41 can drive the upper winding devices 42 to release the upper winding ropes 421. When the upper winding ropes 421 are released, the upper end 21 of the curtain 20 can be driven to move away from the upper rail 30, so that the curtain can be The upper end 21 of 20 is close to the lower end 22, and then the curtain 20 is formed to converge, but a distance is formed between the upper end 21 and the upper rail 30, and the position where the light penetrates can be adjusted; and when the upper reel 41 is released When the ropes 421 are wound up, the upper reel 41 will also drive the screw 62 to rotate; the screw 62 will screw the screw hole 642 of the linkage 64, so that the linkage 64 will move closer to the stop 621. When the link 64 touches the retaining portion 621, the screw rod 64 cannot rotate in the original screwing direction, that is, the upper reel 41 cannot continue to release the winding rope 421 on the upper winding device 42. The upper end 21 will also be quite close to the position of the lower end 22; but the upper end 21 is still above the lower end 22. Through the setting of the limit device 60, the winding rope 421 released by the upper rolling device 40 can be prevented from being lower than The lower rolling rope 521 released by the lower rolling device 50 causes the upper end 21 and the lower end 22 of the curtain 20 to fall. In this state, although the rolling device 40 can no longer release the winding ropes 421, please refer to Figures 10 and 11, the rolling device 40 can tighten the winding ropes 421, so that The upper end 21 of the curtain 20 is pulled close to the upper rail 30, so that the screw 62 can drive the link 64 to move away from the stop 621; or the lower rolling device 50 can drive the lower winding rope 521 Release, so that the gear lever 63 can drive the link 64 to move away from the stop portion 621, and at the same time, drive the lower end 22 of the curtain 20 to continue to move away from the upper rail 30, so that the curtain 20 can be opened . In addition, it is worth mentioning that the upper pull wire set 43 and the lower pull wire set 53 are arranged in front of both ends of the upper rail 30 , so that the user can operate and use it conveniently.

Please refer to shown in Fig. 12, it is to provide a kind of second preferred embodiment of the present invention, its main structure is the same with previous preferred embodiment, and identical structure is represented with identical symbol, does not go into details again, wherein:

It further includes an upper curtain 70, which is also a one-piece structure, and can have different patterns, colors, materials, light transmittance, etc., from the curtain 20. The curtain 20 is located on the lower side and the upper curtain 70 is located on the upper side. The upper curtain 70 also has an upper end 71 and a lower end 72, the upper end 71 is fixedly connected to the bottom of the upper rail 30, and the lower end 72 of the upper curtain 70 is provided with a middle rail 721, and the middle rail 722 is connected to the bottom of the upper rail 30. On the upper end 21 of the curtain 20, the lower end of the upper curtain 70 moves together with the winding rope 421 on the upper rolling device 40 and the upper end 21 of the curtain 20, and the upper end 21 of the curtain 20 and the lower end 72 of the upper curtain 70 cooperate Connected to the middle rail 721 of the curtain, the bottom end of the winding rope 421 of the winding rope device 42 is connected to the middle rail 721 . Through the function of the limiting device 60, the upper curtain 70 can maintain its position above the curtain 20, and the upper curtain 70 will not be squeezed on the curtain 20 due to excessive release.

The position limiting device of the present invention can limit the position of the winding rope on the upper rolling device through the position change of the linking member and the upper rolling device and the lower rolling device, and can avoid the up and down formation of the curtain. In the squeezed state, compared with the known curtains that cannot limit the position between the upper and lower ends, the present invention can definitely limit the position of the upper end of the curtain from being lower than the position of the lower end, so that the curtain will not be released excessively. Extrusion is formed to avoid inconvenience in use and to prevent entanglement between the upper pull cord and the lower pull cord.

The above-mentioned embodiments are only for illustrating the present invention and not limiting. The curtain provided by the present invention is the first structure of similar articles, and improves many deficiencies of the existing drawstring wrench.

10: Curtains 20: Curtain 21: upper end 22: lower end 221: Lower rail 30: on track 31:Accommodating space 40: Up scrolling device 41: Upper Scroll 411: transmission gear 42: Winding device 421: Roll up rope 43: Upper pull wire group 431: transmission gear 432: traction department 50: Down scrolling device 51: Lower Scroll 511: Groove 52: Down winding device 521:Rope down 53: Pull-down wire group 531: traction department 60: limit device 61: seat body 62: screw 621: block 622: Bump 63: gear rod 631: limit slot 632: limit block 633: perforation 634: block 64: Linkage 641: tooth surface 642: screw hole 643: stop block 70: upper curtain 71: upper end 72: lower end 721: middle rail

The purpose, features and achieved effects of the present invention can be understood from the description and drawings of the following preferred embodiments, wherein: Fig. 1 is a perspective view of a preferred embodiment of the present invention. Fig. 2 is an exploded perspective view of a preferred embodiment of the present invention. Fig. 3 is a schematic diagram of the restraining state of the limiting device of the preferred embodiment of the present invention when the curtain is close to the upper rail. Fig. 4 is an end view of the limiting device in a preferred embodiment of the present invention, the gear rod of the limiting device is connected with the lower scroll shaft through the limiting block. Fig. 5 is an overall appearance view of the curtain in the state of Fig. 3 according to the preferred embodiment of the present invention. Fig. 6 is generally the same as Fig. 3, and is a schematic diagram of the action state of the gear lever driving the limit device when the lower end of the curtain is released by the lower rolling device. Fig. 7 is generally the same as Fig. 4, and is an overall appearance view of the curtain in the state of Fig. 5 . Fig. 8 is generally the same as Fig. 3, and is a schematic diagram of the action state of the screw driving the limit device when the upper scrolling device releases the upper end of the cord. Fig. 9 is generally the same as Fig. 4, and is an overall appearance view of the curtain in the state of Fig. 7 . Figure 10 is generally the same as Figure 3. It is a schematic diagram of the state of the limit device when the lower rolling device releases the lower end of the curtain or the upper rolling device retracts the upper end of the curtain. Fig. 11 is generally the same as Fig. 4, and is an overall appearance diagram of the curtain in the state of Fig. 9 . Fig. 12 is an exploded perspective view of the second preferred embodiment of the present invention.

10: Curtains

20: Curtain

21: upper end

30: on track

31:Accommodating space

40: Up scrolling device

41: Upper Scroll

411: transmission gear

42: Winding device

421: Roll up rope

43: Upper pull wire group

431: transmission gear

432: traction department

50: Down scrolling device

51: Lower Scroll

52: Down winding device

521:Rope down

53: Pull-down wire group

531: traction department

60: limit device

61: seat body

62: screw

621: block

63: gear rod

64: Linkage

641: tooth surface

642: screw hole

Claims (9)

A curtain with a limit device, comprising: An upper rail, which has an accommodating space; an upper scrolling device, a lower scrolling device and a limiting device are arranged in the accommodating space; A curtain, in a sheet-like structure, has an upper end and a lower end; The upper rolling device has an upper reel and at least one upper reel; the upper reel can be rotated under force, and drives each of the upper reels to rotate with the upper reel; each of the upper reels is provided with a lower winding rope, each The winding rope is connected to the upper end of the curtain, and can drive the upper end of the curtain to rise and fall; The lower rolling device has a lower reel and at least a lower reel; the lower reel can be rotated under force, and drives each of the lower reels to rotate with the lower reel; The down-winding rope is connected to the lower end of the curtain, and can drive the lower end of the curtain to rise and fall; The limiting device has a screw, a gear rod and a linkage; the screw and the gear are arranged at intervals; one end of the screw is provided with a stop; the linkage has a tooth surface and the gear rod outside. The interlocking part is provided with a screw hole screwed on the screw; the upper reel and the lower reel are respectively installed in the screw and the gear rod, and when the lower reel releases the lower rope, the The linkage will be far away from the blocking portion, and when the winding shaft releases the winding rope, the linkage will be close to the blocking portion. The curtain as described in claim 1, wherein: the lower reel of the lower scrolling device is passed through the gear rod, and the upper reel of the upper scrolling device is passed through the screw rod; the lower reel drives the lower When the winding rope is released, the gear rod will drive the gear rod to rotate, and the gear rod will drive the linkage to move away from the stopper of the screw rod; when the winding shaft drives the winding rope to release, the screw rod will screw The linkage makes the linkage move towards the blocking portion. The curtain as described in claim 2, wherein: the shaft center of the gear rod of the limiting device is provided with a limiting groove and a limiting block, and the limiting block can selectively clamp the lower scroll shaft and the gear pole. The curtain as described in claim 3, wherein: the limiting groove is an inner polygon, and the outer circumference of the limiting block is provided with an outer polygon, and the two are complementary; the center of the limiting block is provided with a perforation, and the perforation A block is convexly provided on the peripheral wall, and a groove is concavely provided on the lower scroll shaft along the axial direction, and the block block of the perforation of the limiting block is locked in the groove, and can slide on the lower scroll shaft. The curtain as described in claim 1, wherein: it further includes an upper stay wire group; the upper stay wire group and the lower pull wire group are respectively arranged at both ends of the upper rail; the upper stay wire group is provided with a transmission gear The reel above the upper scrolling device is also relatively provided with a transmission gear, and the two transmission gears are meshed. The curtain as described in Claim 1, wherein: it further includes a pull-down wire group; the pull-down wire group is directly linked to the lower reel of the down-winding device. The curtain as described in claim 1, wherein: the limiting device has a base, which is arranged in the accommodating space, and the screw rod and the gear rod are pivoted on the base. The curtain as described in claim 1, wherein: the screw rod is provided with a protruding block on the end surface of the stop part; the linkage part is also provided with a push block on the side opposite to the stop part; Afterwards, the push block will snap against the bump. The curtain as described in claim 1, wherein; further includes an upper curtain, which is formed into a sheet structure, and has an upper end and a lower end, the upper end of the upper curtain is fixed on the upper rail, and the lower end is connected to the upper end of the curtain connection; the upper rolling device can drive the lower end of the upper curtain and the upper end of the curtain to move.

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