TWM571415U - Stepless positioning curtain - Google Patents

Abstract

The present invention relates to a curtainless positioning curtain, which mainly uses a brake assembly to control the positioning of a curtain. The brake assembly is disposed in a reel and has a fixed sleeve, a support shaft, a movable sleeve and a pre-preset. a torsion spring, wherein the fixed sleeve is fixed on a reel seat and sleeved on one end of the support shaft, and the movable sleeve is fixed on the reel and sleeved on the other end of the support shaft, so that the movable sleeve is operated along with the reel, The pre-torsion spring is sleeved on the support shaft and is respectively connected with the fixed sleeve and the movable sleeve by the two ends thereof, so that the pre-twist spring is operated together with the movable sleeve; thereby, during the process of the cord being wound up or suspended, The preset torque of the pre-torsion spring will match the length of the curtain to produce a braking effect, so that the curtain can be positioned at any height.

Description

Stepless positioning curtain

This creation is related to curtains, especially a curtain that is designed to simplify the structure and reduce the manufacturing cost.

Generally, the curtains can be divided into a variety of different styles such as roller blinds, Roman blinds, folding curtains and venetian blinds according to the difference in the form of the curtains. In the case of roller blinds, the flat curtains are mainly wound up in one. On the reel, further use the components such as the drawstring or the bead chain to drive the reel to rotate forward and reverse, so as to achieve the effect of winding and hanging the curtain.

In order to allow the curtain to stay at the desired height of the user at any time, in the prior art, a set of brakes is usually installed in the reel, and once the user releases the force applied to the curtain, the brake immediately provides the braking force to the reel, so that The reel stops rotating to bring the curtain to a positioning effect. However, the brakes complicate the overall structure, which is not only troublesome in disassembly and assembly, but also increases manufacturing costs.

The main purpose of this creation is to provide a curtain with no segment positioning, which uses the pre-torque force of the spring to produce a braking effect on the curtain, and the pre-torsion force of the pre-torsion spring also forms a counterbalance with the weight of the weight bar, thereby simplifying the structure and Reduce the cost of manufacturing.

In order to achieve the above main object, the stageless curtain according to the first embodiment of the present invention comprises a reel seat, a reel, a ply, a weight bar and a brake assembly, wherein the reel is rotatably disposed on the a top end of the cord is connected to the reel, the bottom edge of the cord is connected to the weight bar, so that the cord can drive the reel to rotate together during the stretching process, and the reel can be rotated by the reel Rotating or unwinding from the reel; the brake assembly is disposed in the reel and has a fixed sleeve, a support shaft, a movable sleeve and a pre-torsion spring, the fixed sleeve is fixed One end of the support shaft is fixed to the fixed sleeve, and the movable sleeve is coupled to the reel and rotatably sleeved on the other end of the support shaft, so that the movable sleeve can follow the reel Actually, the pre-torsion spring is sleeved on the support shaft, one end of the pre-torsion spring is fixed to the fixed sleeve, and the other end of the pre-torsion spring is fixed to the movable sleeve, so that the pre-torsion spring can follow the movable Bushing together Actuate.

It can be seen from the above that during the process in which the cord is wound up or lowered, the pre-torsion force of the pre-twist spring matches the length of the cord, so that the cord can be positioned at any height, so that the prior art can be omitted. The brakes, in order to achieve a simplified structure and reduce manufacturing costs.

Preferably, the roller holder has a first end cover, the first end cover has a first polygonal protrusion, and the fixed sleeve has a first polygonal hole, and the fixed sleeve is the first one. The edge hole is engaged with the first polygonal protrusion of the first end cover, so that the fixed sleeve cannot be rotated.

Preferably, the inner circumference of the reel has a rib, and the outer sleeve of the movable sleeve has a first recess, and the first recess of the movable sleeve is engaged with the rib of the reel to make the movable sleeve Follow the scroll together.

In addition, the present invention provides another steplessly positioned curtain comprising the reel seat, the reel, the ply, the weight bar, the brake assembly, and a transmission assembly; wherein: the reel seat, the reel, the The cord, the weight rod and the brake assembly are the same as in the first embodiment; the transmission assembly is disposed at one end of the roller holder and has a first transmission member and a second transmission member, the first transmission member having a first a bevel gear and a first transmission rod connected to the first bevel gear, the second transmission member having a second bevel gear and a second transmission rod connected to the second bevel gear, the first transmission member a first bevel gear is engaged with the second bevel gear of the second transmission member, and a second transmission rod of the second transmission member is coupled to one end of the reel so that the reel can be driven by the second transmission member to rotate .

Preferably, the drive rod further includes a hook portion, and the top end of the driving rod has a hook portion, and the first transmission rod of the first transmission member has a hook hole; and the hook portion of the driving rod is detachably hooked a hook hole of the first transmission rod of the first transmission member.

It can be seen from the above that once the position of the curtainless positioning curtain is too high and the user cannot directly operate the curtain by hand, the user can rotate the driving rod to drive the first transmission member to rotate accordingly, so that the first A transmission member is re-engaged to transmit the second transmission member during the rotation, so that the second transmission member drives the reel to rotate accordingly, so that the effect of winding or hanging the curtain can be achieved.

Preferably, the roller holder has a second bushing, the second bushing has a second polygonal hole, and the second polygonal hole of the second bushing is engaged with the second transmission member. The second sleeve has a second recess, and the second recess of the second bush is engaged with the rib of the spool. Thereby, the second bushing drives the reel to act together under the transmission of the second transmission member.

The detailed construction, features, assembly or use of the curtains provided for the segmentless positioning provided by this creation will be described in the detailed description of the subsequent embodiments. However, those of ordinary skill in the art should understand that the detailed description and specific embodiments of the present invention are merely used to illustrate the present invention and are not intended to limit the scope of the patent application.

The Applicant first describes the same or similar elements or structural features thereof in the embodiments and the drawings which will be described below.

Referring to FIGS. 1 and 2, the segmentless curtain 10 of the first embodiment of the present invention comprises a reel base 20, a reel 32, a curtain 34, a weight bar 35, and a brake assembly 40.

The reel base 20 has a first end cap 21, a second end cap 24 and a top plate 27. The inner end surface of the first end cover 21 has a first polygonal convex portion 22 and a first engaging portion 23 located above the first polygonal convex portion 22, and the inner end surface of the second end cover 24 has a second end surface. The polygonal convex portion 25 (shown in FIG. 3) and the second engaging portion 26 located above the second polygonal convex portion 25, the two ends of the top plate 27 are respectively engaged with the first end cover 21 a latching portion 23 and a second latching portion 26 of the second end cap 24. In addition, the roller holder 20 further has a first bushing 28 and a second bushing 30, wherein the first bushing 28 has a circular sleeve hole 29, and the second bushing 30 has a second polygonal hole. 31. The second bushing 30 is engaged with the second polygonal convex portion 25 of the second end cover 24 by the second polygonal hole 31 (as shown in FIG. 3).

As shown in Figures 2 and 3, the reel 32 is located below the top plate 27 of the reel base 20, one end of the reel 32 is sleeved on the first bushing 28, and the other end of the reel 32 is sleeved on the second bushing 30 to make the reel 32 can rotate relative to the reel base 20. Further, the inner circumferential surface of the reel 32 has two mutually parallel ribs 33 extending in a direction parallel to the axial direction of the reel 32.

The top edge of the curtain 34 is connected to the reel 32, and the bottom edge of the curtain 34 is connected to the weight bar 35, so that the curtain 34 can rotate the reel 32 in the process of being stretched, and can also be reversed by the reel 32. It is instead wound on the reel 32 or released from the reel 32.

The brake assembly 40 is disposed in the reel 32 and has a fixed bushing 41, a support shaft 44, a movable bushing 45 and a pre-twist spring 48, wherein:

One end of the fixed sleeve 41 has a first shaft hole 42. The other end of the fixed sleeve 41 has a first polygonal hole 43. The first polygonal hole 43 of the fixed sleeve 41 is engaged with the roller holder 20. The first polygonal projection 22 of the first end cap 21 (as shown in Fig. 3) prevents the fixed bushing 41 from rotating. In addition, the fixed bushing 41 is further sleeved by the first bushing 28 of the reel base 20 by the circular sleeve hole 29.

One end of the support shaft 44 is bored with a first shaft hole 42 fixed to the fixed sleeve 41, and the other end of the support shaft 44 is held at a predetermined distance from the second end cover 24.

The movable sleeve 45 has a second shaft hole 46, and the second shaft hole 46 of the movable sleeve 45 is rotatably sleeved on the support shaft 44. In addition, the outer sleeve of the movable sleeve 45 has a first recess 47, and the first recess 47 of the movable sleeve 45 is engaged with the two ribs 33 of the reel 32, as shown in Figures 3 and 4, to make the movable sleeve 45 can rotate with the reel 32.

The pre-twist spring 48 herein refers to a spring that applies a pre-torque force first. For the setting of the pre-torsion spring 48, firstly, the torque value required to be provided is calculated according to the material of the size of the curtain 34, the weight of the weight bar 35, and the parameter that the curtain 34 is expected to be positioned at any height. Then, the pre-torsion spring 48 to which the pre-torque force is not applied is sleeved on the support shaft 44, and the two ends thereof are respectively fixed to the fixed sleeve 41 and the movable sleeve 45, and then the movable sleeve 45 is rotated by an appropriate number of turns, so that the The torsion spring 48 generates a pre-torque force under the driving of the movable sleeve 45. At this time, the torsion force generated by the pre-torsion spring 48 can be further sensed by the torque sensor (not shown) until the When the pre-torsion force of the spring 48 is adjusted to be the same as the result of calculating the torque value mentioned above, the first recess 47 of the movable sleeve 45 is used to engage the rib 33 of the reel 32 to position the movable sleeve 45, thus The setting of the pre-twist spring 48 is completed.

It can be seen from the above that during the process of stretching or folding the curtain 34, the reel 32 will be driven to rotate, and then the reel 32 will drive the movable sleeve 45 to rotate together with the pre-torsion spring 48, once the external force applied to the curtain 34 is released. The pre-torsion force of the pre-torsion spring 48 will produce a braking effect on the curtain 34, and the pre-torsion force of the pre-torsion spring 48 will also form a counterbalance with the weight of the weight bar 35, thereby allowing the curtain 34 to be positioned at any height.

On the other hand, in order to cope with different use cases, the steplessly positioned curtain 12 of the second embodiment of the present invention uses a combination of a transmission assembly 60 and a drive rod 70 to complete the driving of the reel 32, as for other structures except the reel seat. Other than 50, it is exactly the same as the foregoing embodiment, and details are not described herein again.

As shown in FIGS. 5 and 6, the second end cover 51 of the reel base 50 is formed by an inner cover 52 and an outer cover 53. The inner cover 52 has a through hole 54 and an inner cover 52. The through hole 54 corresponds to the second polygonal hole 56 of the second bushing 55 of the reel base 50. In addition, the outer peripheral surface of the second bushing 55 of the reel base 50 has a second recess 57, and the second recess 57 of the second bushing 55 is engaged with the two ribs 33 of the reel 32, so that the second bushing 55 can Rotate with the reel 32.

The transmission assembly 60 is disposed in the second end cover 51 of the reel base 50, and the transmission assembly 60 has a first transmission member 61 and a second transmission member 65. The first transmission member 61 has a first bevel gear 62 and a first transmission rod 63, one end of the first transmission rod 63 is sleeved on the body of the first bevel gear 62, and the other end of the first transmission rod 63 is exposed outside the second end cover 51 and has a hook hole The second transmission member 65 has a second bevel gear 66 and a second transmission rod 67. The second bevel gear 66 meshes with the first bevel gear 62 of the first transmission member 61, and one end of the second transmission rod 67. The second bevel gear 66 is integrally connected, and the other end of the second transmission rod 67 is engaged with the second polygonal hole 56 of the second bushing 55 via the through hole 54 of the inner cover 52 of the second end cover 51. The second transmission member 65 is rotatable together with the second bushing 55.

The top end of the driving rod 70 has a hook portion 72 for hooking the hook hole 64 of the first transmission rod 63 of the first transmission member 61, so that the driving rod 70 can drive the first transmission member 61 to rotate.

It can be seen from the above that in the event that the position of the curtain 12 without the positioning is too high and the user cannot operate by hand, the user can complete the lifting and lowering of the curtain 34 by means of the driving lever 70, and the driving lever 70 is operated during operation. The hook portion 72 hooks the hook hole 64 of the first transmission rod 63 of the first transmission member 61, and applies a force to rotate it. During the rotation of the first transmission member 61, the first bevel gear 62 is engaged with the second transmission gear. The second bevel gear 66 of the transmission member 65, and then the second transmission rod 67 of the second transmission member 65 can drive the second bushing 55 to rotate accordingly, and then the second bushing 55 further drives the reel 32 to rotate with it. The cord 34 can be retracted or dropped during the rotation of the spool 32.

In summary, the segmented curtains 10, 12 of the present invention utilize the pre-torsion force of the pre-torsion spring 48 to produce a braking effect on the curtain 34, and the pre-torsion force of the pre-torsion spring 48 will also form a weight with the weight of the weight bar 35. The counter force, so that the brakes used in the prior art can be omitted, thereby achieving the purpose of simplifying the structure and reducing the manufacturing cost.

"First Embodiment"

10‧‧‧Without positioning curtains

20‧‧‧Roll seat

21‧‧‧First end cap

22‧‧‧First polygonal convex

23‧‧‧First card joint

24‧‧‧Second end cap

25‧‧‧Second polygonal convex

26‧‧‧Second card joint

27‧‧‧ top board

28‧‧‧First bushing

29‧‧‧round hole

30‧‧‧Second bushing

31‧‧‧Second polygonal hole

32‧‧‧ reel

33‧‧‧ ribs

34‧‧‧ Cord

35‧‧‧weight rod

40‧‧‧Brake components

41‧‧‧Fixed bushings

42‧‧‧First shaft hole

43‧‧‧First polygonal hole

44‧‧‧Support shaft

45‧‧‧ movable sleeve

46‧‧‧Second shaft hole

47‧‧‧First recess

48‧‧‧Pre-twist spring

"Second embodiment"

12‧‧‧Without positioning curtains

50‧‧‧Roll seat

51‧‧‧Second end cap

52‧‧‧ inner cover

53‧‧‧Outer cover

54‧‧‧Perforation

55‧‧‧Second bushing

56‧‧‧Second polygonal hole

57‧‧‧Second recess

60‧‧‧ Transmission components

61‧‧‧First transmission parts

62‧‧‧First bevel gear

63‧‧‧First transmission rod

64‧‧‧ hook hole

65‧‧‧Second transmission parts

66‧‧‧Second bevel gear

67‧‧‧Second transmission rod

70‧‧‧ drive rod

72‧‧‧Hook

Fig. 1 is a perspective view showing the appearance of a curtain for positioning without a segment according to the first embodiment of the present invention.

Fig. 2 is an exploded perspective view showing the curtain for positioning without a segment according to the first embodiment of the present invention.

Fig. 3 is a sectional view showing the combination of the curtainless positioning of the first embodiment of the present invention.

Figure 4 is a cross-sectional view taken along line 4-4 of Figure 3.

Fig. 5 is a perspective view showing the appearance of the curtainless positioning curtain according to the second embodiment of the present invention.

Fig. 6 is a partially exploded perspective view showing the curtain for positioning without a segment according to the second embodiment of the present invention.

Figure 7 is a cross-sectional view of the curtainless positioning curtain of the second embodiment of the present invention, mainly showing the structural relationship between the reel, the second bushing and the second transmission member.

Claims (14)

A curtain for positioning without a segment is composed of: a reel seat; a reel rotatably disposed on the reel seat; a curtain having a top edge connected to the reel; and a weight bar coupled to the curtain a bottom edge; and a brake assembly disposed in the reel and having a fixed sleeve, a support shaft, a movable sleeve and a pre-torsion spring fixed to one end of the reel seat, the support shaft One end is fixed to the fixed sleeve, the movable sleeve is coupled to the reel and rotatably sleeved on the other end of the support shaft, the pre-torsion spring is sleeved on the support shaft, and one end of the pre-torsion spring is fixed to The fixed bushing is fixed to the movable bushing at the other end of the pre-twisted spring. The non-segmented curtain according to claim 1, wherein the reel seat has a first end cover, a second end cover and a top plate, the first end cover being fixed to the fixing sleeve, the second end A predetermined distance is maintained between the cover and the support shaft, and the top plate connects the first and second end covers and is located above the reel. The curtain according to claim 2, wherein the first end cover has a first polygonal protrusion, and the fixed sleeve has a first polygonal hole, and the fixed sleeve is the first one. The edge hole is engaged with the first polygonal protrusion of the first end cover. The curtain according to claim 2, wherein the roller holder further has a first bushing and a second bushing, the first bushing being disposed between one end of the reel and the fixing bushing, The second bushing is disposed between the other end of the spool and the second end cap. The non-segmented curtain according to claim 4, wherein the second end cap has a second polygonal protrusion, the second bushing has a second polygonal hole, and the second bushing The two polygonal holes are engaged with the second polygonal protrusion of the second end cover. The non-segmented curtain according to claim 1, wherein the inner peripheral mask of the reel has a rib, and the outer sleeve of the movable sleeve has a first recess, and the first recess of the movable sleeve is engaged with the first recess The rib of the reel. A curtain without positional positioning, comprising: a reel seat; a reel rotatably disposed on the reel seat; a ply, a top edge of the ply is connected to the reel; and a weight bar connected to the bottom of the ply a brake assembly is disposed in the reel and has a fixed sleeve, a support shaft, a movable sleeve and a pre-torsion spring, the fixed sleeve is fixed to one end of the reel seat, and one end of the support shaft is fixed In the fixed sleeve, the movable sleeve is coupled to the reel and rotatably sleeved on the other end of the support shaft, the pre-torsion spring is sleeved on the support shaft, and one end of the pre-torsion spring is fixed to the fixed shaft a sleeve, the other end of the pre-torsion spring is fixed to the movable sleeve; and a transmission assembly is disposed at one end of the roller holder and has a first transmission member and a second transmission member, the first transmission member having a first a bevel gear and a first transmission rod connected to the first bevel gear, the second transmission member having a second bevel gear and a second transmission rod connected to the second bevel gear, the first transmission member The first bevel gear is engaged with the second transmission member A second bevel gear, and the second transmission element of the second transmission shaft connected to one end of the spool. The non-segmented curtain according to claim 7, wherein the reel seat has a first end cover, a second end cover and a top plate, and the first end cover is fixed to the fixing sleeve, the second end A predetermined distance is maintained between the cover and the support shaft, the top plate is coupled to the first and second end covers and located above the reel; and the transmission assembly is disposed on the second end cover. The non-segmented curtain according to claim 8, wherein the first end cover has a first polygonal protrusion, the fixed sleeve has a first polygonal hole, and the fixed sleeve is the first one. The edge hole is engaged with the first polygonal protrusion of the first end cover. The non-segmented curtain according to claim 8, wherein the reel base further has a first bushing and a second bushing, the first bushing being disposed between one end of the reel and the fixing bushing, The second bushing is disposed between the other end of the reel and the second end cover and is connected to the first transmission rod of the first transmission member. The non-segmented curtain according to claim 10, wherein the inner peripheral mask of the reel has a rib, the outer peripheral mask of the second bush has a second recess, and the second recess of the second bush is engaged. The rib of the reel. The non-segmented curtain according to claim 10, wherein the second bushing has a second polygonal hole, and the second polygonal hole of the second bushing is engaged with the second transmission member Two transmission rods. The non-segmented curtain according to claim 7, wherein the inner peripheral mask of the reel has a rib, and the outer sleeve of the movable sleeve has a first recess, and the first recess of the movable sleeve is engaged with the first recess The rib of the reel. The non-segmented curtain according to any one of claims 7 to 13, further comprising a driving rod, the top end of the driving rod has a hook portion, and the first transmission rod of the first transmission member The hook portion of the driving rod is detachably hooked to the hook hole of the first transmission rod of the first transmission member.