TWI807774B - Ladder cord holder for blinds - Google Patents

Abstract

The ladder rope fixer of the present invention comprises a supporting seat, a rotating seat and an elastic positioning member. The support seat has a bottom wall and two opposite walls. These vertical walls connect the two on the side of the bottom wall, and these vertical walls have one hub groove. The rotating seat has a hub and a ladder fixation of a hub. In these hubs in the support seat, the elastic positioning parts are located in one wall of the support seat and the elastic top of the pivot is the certain slot. In this way, when the rotating base rotates relative to the supporting base, the positioning grooves will be pushed against by the elastic positioning members in turn, so that a clear sense of paragraphs can be produced.

Description

Ladder cord holder for blinds

The present invention relates to curtains, in particular to a ladder rope fixer for blinds.

For general blinds, after all the blades are unfolded, they can be driven by the ladder rope to tilt relative to the upper beam, so as to provide the effect of shielding light. Furthermore, the top of the ladder rope is fixed on a rotating base, and when the rotating base is driven by a drive shaft and rotates relative to a support base, it can synchronously drive the ladder rope, so that the ladder rope drives all the blades to tilt relative to the upper beam. However, the conventional rotating seat rotates relative to the supporting seat in a smooth and non-sequential manner, which easily affects the user's operating feel when adjusting the blade angle.

The main purpose of the present invention is to provide a ladder rope holder for blinds, which has a clear sense of step during operation.

In order to achieve the above main purpose, the ladder rope fixer of the present invention includes a supporting base, a rotating base and an elastic positioning member. The supporting base has a bottom wall and two opposite vertical walls, the vertical walls are connected to two opposite sides of the bottom wall, and the vertical walls have a pivot groove respectively; the rotating base has a pivot and a ladder rope fixing part, the two ends of the pivot are pivotally arranged in the pivot grooves of the supporting base, and the outer peripheral surface of the pivot has a plurality of positioning grooves arranged in a ring at equal intervals, and the ladder rope fixing part is arranged on the outer peripheral surface of the pivot; One of the positioning grooves elastically resists the pivot of the rotating base.

From the above, it can be seen that when the rotating base rotates relative to the supporting base, the positioning grooves are pushed against by the elastic positioning member in turn, so that the rotating base produces a clear sense of step during the rotation process.

Preferably, the top edge of one of the vertical walls of the supporting seat has two engaging grooves, and the engaging grooves are located on two opposite sides of the pivot grooves. The elastic positioning part has a positioning part, two slanting parts, two extending parts and two inserting parts. The positioning part is elastically pressed against one of the positioning grooves of the pivot. With the above-mentioned technical features, the elastic positioning member exerts an elastic resisting force on the pivot shaft through the positioning portion.

Preferably, the pivot has a shaft and two disks, the shaft is pivotally arranged in the pivot grooves of the support base and has the positioning grooves, the disks are connected to two ends of the shaft and are located outside the vertical walls of the support base, the outer diameter of the disks is larger than the outer diameter of the shaft and the groove diameter of the pivot groove, so as to prevent the pivot from detaching from the pivot grooves in the horizontal direction.

Preferably, one of the vertical walls of the support base has a cavity, the elastic positioning member has a ball and a compression spring, the ball partially protrudes from the cavity and abuts against one of the positioning grooves of the pivot, the compression spring is arranged in the cavity and abuts the ball and the end wall of the cavity with its two ends. With the above-mentioned technical features, the elastic positioning member exerts an elastic resisting force on the pivot shaft through the ball.

Preferably, the pivot has a shaft and two disks, the shaft is pivotally arranged in the pivot grooves of the support base and has the positioning grooves, the disks are connected to two ends of the shaft and are located outside the vertical walls of the support base, and the outer diameter of the disks is larger than the outer diameter of the shaft and the groove diameter of the pivot groove. The ball abuts against the positioning groove of the shaft.

Preferably, the rotating base further has a driving hole passing through the shaft, and a driving shaft is clamped in the driving hole so that the rotating base can be driven to rotate by the driving shaft.

The detailed structure, features, assembly or usage of the ladder rope holder for blinds provided by the present invention will be described in the subsequent detailed description of the implementation. However, those with ordinary knowledge in the field of the present invention should understand that the detailed description and the specific embodiments enumerated for implementing the present invention are only for illustrating the present invention, and are not intended to limit the scope of the patent application of the present invention.

The applicant hereby explains that in the entire specification, including the embodiments described below and the claims of the scope of the patent application, the nouns related to direction are based on the directions in the drawings. Secondly, in the embodiments and drawings to be described below, the same component numbers represent the same or similar components or their structural features.

Please refer to FIG. 2 and FIG. 3 , the ladder rope anchor 10 according to the first embodiment of the present invention includes a support base 20 , a rotating base 30 , and an elastic positioning member 40 .

The support base 20 is installed in an upper beam 60 (as shown in FIG. 1 ). The support base 20 has a bottom wall 22 and two opposite vertical walls 24 , and the vertical walls 24 are integrally connected to two opposite sides of the bottom wall 22 . The vertical walls 24 respectively have a pivot groove 26 with an opening upward, and the top surfaces of the vertical walls 24 respectively have an inserting groove 28 , and the engaging grooves 28 are located on two opposite sides of the pivot groove 26 .

The rotating base 30 has a pivot 31 and a ladder rope fixing portion 35 . Pivot 31 has a shaft portion 32 and two disk portions 33. The outer peripheral surface of one end of shaft portion 32 has a plurality of positioning grooves 34 arranged in an annular arrangement at equal intervals. One end communicates with a fixing hole 37. As shown in FIGS. 2 and 3 , the rotating base 30 is mounted on the pivot slots 26 of the support base 20 with the two ends of the shaft portion 32 of the pivot shaft 31 , and the disc portions 33 of the pivot shaft 31 are positioned outside the vertical walls 24 of the support base 20 to prevent the pivot shaft 31 from breaking away from the pivot slots 26 along the horizontal direction. In addition, the rotating base 30 further has a driving hole 38 passing through the pivot shaft 31 , through which a driving shaft 62 passes through and engages with the driving hole 38 , so that the rotating base 30 can be driven by the driving shaft 62 to pivot relative to the support base 20 . In addition, when using two ladder ropes 64, the tops of the ladder ropes 64 are embedded in the fixing holes 37 through the slots 36, and then fixed by knotting, so that the rotating base 30 can synchronously drive the ladder ropes 64 during rotation, and then the ladder ropes 64 drive all the blades 66 to tilt.

The elastic positioning member 40 is an example of a metal elastic piece in this embodiment. The elastic positioning member 40 has a positioning portion 42 , two brace portions 44 , two extension portions 46 and two engaging portions 48 , one end of the brace portions 44 is connected to the positioning portion 42 , the other end of the brace portions 44 is connected to one end of the extension portions 46 , and the other end of the extension portions 46 is connected to the engagement portions 48 . As shown in FIG. 3 and FIG. 4 , the elastic positioning member is clamped in the engaging grooves 28 of one of the vertical walls 24 of the support base 20 with the engaging portions 48 , so that the elastic positioning member 40 elastically abuts against one of the positioning grooves 34 of the rotating base 30 with the positioning portion 42 .

It can be seen from the above that when the rotating base 30 rotates relative to the supporting base 20, as shown in Figure 4 and Figure 5, the positioning grooves 34 are elastically pushed against by the positioning part 42 of the elastic positioning member 40 in turn, so that the rotating base 30 produces a clear step feeling during the rotation process, so as to improve the user's operating feel when adjusting the blade angle.

Please continue to refer to FIGS. 6 to 8 , the structure of the second embodiment of the ladder rope holder 12 of the present invention is substantially the same as that of the above-mentioned first embodiment. The main difference is that one of the vertical walls 24 of the support base 20 has a hole 262 in the groove wall of the pivot groove 26. The elastic positioning member 50 has a ball 52 and a compression spring 54. against the ball 52 and the end wall of the cavity 262 . Thereby, when the rotating base 30 rotates relative to the supporting base 20, the positioning grooves 34 are elastically pushed against by the balls 52 in turn, so that the rotating base 30 produces a clear step feeling during the rotation process, so as to improve the user's operating feel when adjusting the blade angle.

10: Ladder rope holder

12: Ladder rope holder

20: Support seat

22: bottom wall

24: Standing wall

26: pivot slot

262: Hole

28: Embedded card slot

30: rotating seat

31: Pivot

32: Shaft

33: Pan

34: positioning slot

35: ladder rope fixing part

36: slot

37: Fixing hole

38: Drive hole

40:Elastic locator

42: Positioning department

44: Diagonal brace

46: Extension

48:Embedded card part

50:Elastic locator

52: Ball

54: Compression spring

60: upper beam

62: drive shaft

64: ladder rope

66: blade

Fig. 1 is a schematic view of the installation of the ladder rope anchor on the upper beam according to the first embodiment of the present invention. Fig. 2 is a perspective view of the ladder rope anchor according to the first embodiment of the present invention. Fig. 3 is an exploded perspective view of the ladder rope anchor according to the first embodiment of the present invention. Fig. 4 is an end view of the ladder rope anchor according to the first embodiment of the present invention, mainly showing that the positioning portion of the elastic positioning member abuts against one of the positioning grooves. Fig. 5 is similar to Fig. 4, and mainly shows that the positioning part of the elastic positioning member breaks away from the positioning grooves. Fig. 6 is a perspective view of a ladder rope anchor according to a second embodiment of the present invention. FIG. 7 is an exploded perspective view of the ladder rope anchor according to the second embodiment of the present invention, mainly showing that the ball is pushed against one of the positioning grooves. Fig. 8 is similar to Fig. 7, mainly showing that the balls are out of the positioning grooves.

20: Support seat

22: bottom wall

24: Standing wall

26: pivot slot

28: Embedded card slot

30: rotating seat

31: Pivot

32: Shaft

33: Pan

34: positioning slot

35: ladder rope fixing part

36: slot

37: Fixing hole

38: Drive hole

40:Elastic locator

42: Positioning Department

44: Diagonal brace

46: Extension

48:Embedded card part

Claims (7)

A ladder rope fixer for blinds, comprising: a support base with a bottom wall and two opposite vertical walls, the vertical walls are connected to two opposite sides of the bottom wall, and the vertical walls respectively have a pivot groove; a rotating base, with a pivot and a ladder rope fixing part, the two ends of the pivot shaft are pivotally arranged in the pivot grooves of the support base, and the outer peripheral surface of the pivot shaft has a plurality of positioning grooves arranged in a ring at equal intervals, and the ladder rope fixing part is arranged outside the pivot shaft peripheral surface; and an elastic positioning member, which is located on one of the vertical walls of the supporting seat and elastically resists one of the positioning grooves of the pivot of the rotating seat; wherein, when the rotating seat rotates relative to the supporting seat, the positioning grooves are elastically pressed by the elastic positioning member in turn. The ladder rope fixer for blinds as described in claim 1, wherein, the top edge of one of the vertical walls of the supporting base has two inserting grooves, and the inserting grooves are located on two opposite sides of the pivot grooves; the elastic positioning member has a positioning part, two diagonal bracing parts, two extension parts and two inserting engaging parts, and the positioning part elastically abuts against one of the positioning grooves of the pivot shaft, one end of the diagonal brace parts is connected to the positioning part, and the other end of the diagonal brace parts is connected to one end of the extension parts. The other end is connected with the engaging parts, and the engaging parts are detachably arranged in the engaging grooves of the vertical wall of one of the support bases. The ladder rope holder for blinds as described in claim 2, wherein the pivot has a shaft and two disks, the shaft is pivotally arranged in the pivot grooves of the support base, and the shaft has the positioning grooves, the disks are connected to the two ends of the shaft and are located on the support On the outer side of the standing walls of the seat, the outer diameter of the discs is larger than the outer diameter of the shaft and the diameter of the pivot groove. The ladder rope holder for blinds as claimed in claim 3, wherein the rotating base further has a driving hole penetrating the shaft. The ladder rope holder for blinds as described in claim 1, wherein one of the vertical walls of the supporting base has a hole, the elastic positioning member has a ball and a compression spring, the ball partially protrudes from the hole and presses against one of the positioning grooves of the pivot, and the compression spring is arranged in the hole and its two ends are pressed against the ball and the end wall of the hole. The ladder rope fixer for blinds as described in claim 5, wherein the pivot has a shaft and two disks, the shaft is pivotally arranged in the pivot grooves of the support base, and the shaft has the positioning grooves, the disks are connected to the two ends of the shaft and are located outside the vertical walls of the support base, and the outer diameter of the disks is larger than the outer diameter of the shaft and the groove diameter of the pivot groove. According to claim 6, the ladder rope holder for blinds, wherein, the rotating base further has a driving hole penetrating through the shaft.

Images