CN110469258B

CN110469258B - Side-in rope winder for exposed pull rope-free curtain

Info

Publication number: CN110469258B
Application number: CN201810442239.2A
Authority: CN
Inventors: 陈柏宇
Original assignee: Individual
Current assignee: British Caymans Business Association
Priority date: 2018-05-10
Filing date: 2018-05-10
Publication date: 2020-12-04
Anticipated expiration: 2038-05-10
Also published as: CN110469258A

Abstract

The invention relates to a side-entry rope winder for an exposed pull rope type curtain, which comprises a base, a first rotating wheel, a second rotating wheel, a coil spring and two lifting transmission ropes, wherein two ends of the base are respectively provided with an end plate and an opening, the first rotating wheel and the second rotating wheel are arranged on the base and are respectively adjacent to the end plate and the opening, the first rotating wheel is provided with an upper layer, a middle layer and a lower layer, the two rotating wheels are respectively separated by a disc part, the coil spring is connected with the lower layer of the first rotating wheel and the second rotating wheel, one end of each of the two lifting transmission ropes is respectively connected with the upper layer and the middle layer of the first rotating wheel, and the other end of each of the two lifting transmission ropes penetrates out of the base through the opening of the base and is connected with a lower beam. Therefore, the side-in rope winder can be quickly installed and detached at one end of an upper beam, so that the convenience in use is improved.

Description

Side-in rope winder for exposed pull rope-free curtain

Technical Field

The invention relates to an exposed pull rope-free curtain, in particular to a side-in type rope winder for the exposed pull rope-free curtain.

Background

Generally, the non-exposed pull rope type curtain mainly uses a rope winder arranged in an upper beam to wind a lifting transmission rope, and the lifting transmission rope is connected with a lower beam, so that the lower beam gradually rises relative to the upper beam in the winding process of the lifting transmission rope, and blades are stacked together through the upward movement of the lower beam, so that the purpose of folding the curtain is achieved. However, in the prior art, the rope winder is usually located in the middle of the upper beam, so the arrangement of other components needs to be considered when assembling, otherwise, the mutual interference problem is easily caused.

Disclosure of Invention

The main object of the present invention is to provide a side-entry cord winder for a pull-cord type window covering without an exposed portion, which is easy to install and convenient to operate, so as to increase the convenience in use.

In order to achieve the above objective, the present invention provides a side-entry rope winder, which comprises a base, a first pulley, a second pulley, a coil spring and two lifting transmission ropes. One end of the base is provided with an end plate, and the other end of the base is provided with an opening; the first rotating wheel is rotatably arranged on the base and is adjacent to the end plate of the base, the first rotating wheel is provided with an upper layer, a middle layer and a lower layer, and the space between the upper layer and the middle layer and the space between the middle layer and the lower layer are respectively separated by a disc part; the second rotating wheel is rotatably arranged on the base and is adjacent to the opening of the base; the coil spring is connected with the lower layer of the first rotating wheel and the second rotating wheel; one end of the two lifting transmission ropes is respectively connected with the upper layer and the middle layer of the first rotating wheel, and the other end of the two lifting transmission ropes penetrates out of the base through the opening of the base and is connected with a lower beam.

Therefore, the side-in rope winder can be quickly installed and detached at one end of an upper beam, and achieves a positioning effect by abutting the end plate of the base against the end face of the upper beam, so that the purpose of increasing the use convenience is achieved.

Preferably, the base has an upper half base body and a lower half base body connected to the upper half base body, one end of the upper half base body has an upper end portion, one end of the lower half base body has a lower end portion, and the upper end portion and the lower end portion are abutted to each other to form the end plate, so that the base can provide a positioning effect by abutting the end plate against the end surface of the upper beam. In addition, the top surface of the upper half seat body is provided with two opposite guide rails, and the convenience of assembling the upper half seat body on the upper beam is increased through the guide rails of the upper half seat body.

Preferably, a resistance adjusting module is arranged between the top plate and the middle plate of the base, and the resistance adjusting module can change the wiring mode of the two lifting transmission ropes by one or more upright rods in the operation process, so that the effect of adjusting the resistance is achieved.

The detailed construction, features, assembly or use of the side entry cord winder provided by the present invention will be described in the detailed description of the embodiments that follow. However, those of ordinary skill in the art should understand that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention as defined by the appended claims.

Drawings

Fig. 1 is a partial perspective view of the side entry type rope winder of the present invention mounted on an upper beam.

Fig. 2 is an external perspective view of the side entry type rope winder of the present invention.

Fig. 3 is a partial exploded perspective view of the side entry cord winder of the present invention.

Fig. 4 is an exploded perspective view of a resistance adjustment module provided by the side entry cord winder of the present invention.

Fig. 5 is a side view of the side entry cord winder of the present invention.

FIG. 6 is a cross-sectional view of the resistance adjustment module provided by the side entry cord winder of the present invention, showing primarily the pull pin in a detent position.

Fig. 7 is a cross-sectional view taken along line 7-7 of fig. 6.

FIG. 8 is another cross-sectional view of the resistance adjustment module provided with the side-entry cord winder of the present invention, showing primarily the pull pin in the adjustment position.

Fig. 9 is a cross-sectional view taken along line 9-9 of fig. 8.

Fig. 10 is a partial top view of the side entry cord winder of the present invention.

Fig. 11 is a partial top view of the upper seat half taken down from the side-entry rope winder of the present invention, mainly showing the two lifting transmission ropes supported by the vertical rods.

[ notation ] to show

10 side income formula ropewinder 12 is put beams in

14 flange 20 base

21 upper half base 212 top hole

214 gear indicator 216 guide rail

218 upper end portion 22 lower half seat body

221 lower end 23 end plate

24 the upper half of the opening 242

244 lower half 25 middle plate

26 fixed shaft 262 inner shaft

264 first rotating wheel of positioning part 30

32 upper layer 34 middle layer

36 lower layer 38 disk part

40 second pulley 42 wrap spring

44. 46 lifting transmission rope 50 resistance adjusting module

60 drive seat 62 drive shaft

622 polygonal drive hole 624 internal shoulder

64 upper wing plate 66 lower wing plate

68 vertical rod 70 pull pin

71 drive shaft 72 outer shaft part

73 positioning groove of polygonal driving part 74

75 outer shoulder P1 detent position

P2 adjusting position 76 operating part

77 denotes 80 an elastic member

90 spacing ring 91 upper cross bar

92 lower cross bar 93 guide rod

Detailed Description

The applicant hereby gives notice that, in the embodiments and in the drawings that will be described below, the same reference numerals will be used to designate the same or similar components or structural features thereof.

Referring to fig. 2, the side entry cord winder 10 of the present invention includes a base 20, a first pulley 30, a second pulley 40, a coil spring 42, and two

lift cords

44 and 46.

Referring to fig. 3, the base 20 is formed by an upper half base body 21 and a lower half base body 22 which are mutually butted, wherein the upper half base body 21 has a top hole 212 penetrating through both top and bottom surfaces, a plurality of gear marks 214 using arabic numerals are arranged around the top hole 212, the top surface of the upper half base body 21 has two pairs of guide rails 216 arranged side by side in front and back, in addition, one end of the upper half base body 21 has an upper end portion 218, one end of the lower half base body 22 has a lower end portion 221, the upper end portion 218 of the upper half base body 21 and the lower end portion 221 of the lower half base body 22 are mutually butted to form an end plate 23, and the other end of the base 20 has an opening 24 opposite to the end plate 23.

In addition, the base 20 further has a middle plate 25, the middle plate 25 has a length that is only about half of the length of the upper and lower

half seat bodies

21, 22, the middle plate 25 is disposed between the upper and lower

half seat bodies

21, 22 and adjacent to the opening 24, such that one end of the middle plate 25 divides the opening 24 into an upper portion 242 and a lower portion 244. As shown in fig. 4, the middle plate 25 has a fixed shaft 26 on the top surface thereof, the fixed shaft 26 has an inner shaft 262 with a circular cross section and a positioning portion 264 with a tooth-shaped cross section, and the top end of the positioning portion 264 is integrally connected to the bottom end of the inner shaft 262.

As shown in fig. 2 and 3, the first wheel 30 is rotatably disposed between the upper and

lower half bodies

21, 22 of the base 20 and adjacent to the end plate 23 of the base 20. The first roller 30 has an upper layer 32, a middle layer 34 and a lower layer 36 from top to bottom, and the upper and

middle layers

32, 34 and the middle and

lower layers

34, 36 are separated by a disc portion 38.

The second wheel 40 is rotatably disposed between the upper and

lower seat halves

21, 22 of the base 20 and adjacent to the lower half 244 of the opening 24 of the base 20.

A coil spring 42 is connected between the lower layer 36 of the first rotor 30 and the second rotor 40 for providing an elastic restoring force to drive the first and

second rotors

30, 40 to rotate synchronously.

As shown in fig. 2, 3 and 5, one end of each of the two

lift cords

44, 46 is connected to the upper and middle layers 34 of the first pulley 30, and the other end of each of the two

lift cords

44, 46 passes through the upper half 242 of the opening 24 of the base 20 and is connected to a lower beam (not shown) outside the base 20.

From the above structure, when the two lifting

transmission ropes

44, 46 are extended outwards to gradually get out of the

middle layers

32, 34 of the first pulley 30, the first pulley 30 will start to rotate and pull the coil spring 42 through the lower layer 36 during the rotation process, so that the coil spring 42 further drives the second pulley 40 to rotate synchronously, and at this time, the coil spring 42 will accumulate the elastic restoring force. Once the pulling force applied to the two

lift cords

44, 46 is released, the elastic restoring force of the coil spring 42 acts on the lower layer 36 of the first pulley 30 and the second pulley 40, so that the first and

second pulleys

30, 40 synchronously rotate in opposite directions, and the first pulley 30 retracts the

lift cords

44, 46 engaged therewith through the upper and

middle layers

32, 34, respectively.

In another aspect, the present invention further provides a resistance adjustment module 50 for providing proper resistance to the two

lift cords

44, 46 during actuation, as shown in fig. 4, the resistance adjustment module 50 has a driving seat 60, a pull pin 70 and an elastic member 80, wherein:

the transmission seat 60 is rotatably disposed between the top and

middle plates

21, 25 of the base 20. The transmission seat 60 has a transmission shaft 62, the transmission shaft 62 has a polygonal transmission hole 622 (shown as an octagon in fig. 5 and 7), the top end of the hole wall of the polygonal transmission hole 622 has an inner shoulder 624 (shown in fig. 6), and the aperture of the polygonal transmission hole 622 is larger than the shaft diameter of the fixing shaft 26 of the middle plate 25, so that the transmission seat 60 can rotate freely relative to the base 20 after being sleeved on the fixing shaft 26 of the middle plate 25 through the transmission hole 622 of the transmission shaft 62. As shown in fig. 4, the transmission seat 60 further has an upper wing plate 64, a lower wing plate 66 and five vertical rods 68, the upper and

lower wing plates

64, 66 are connected to the top and bottom ends of the transmission shaft 62, and the vertical rods 68 are connected to the upper and

lower wing plates

64, 66 and are arranged in an arc shape with equal intervals by taking the center of the polygonal transmission hole 622 of the transmission shaft 62 as the center of a circle.

The pull pin 70 has a driving shaft 71, the driving shaft 71 has an outer shaft portion 72, a polygonal driving portion 73 (shown in fig. 4 and 7 as an octagon), and a positioning groove 74 (shown in fig. 7) with a tooth shape, the outer shaft portion 72 has a circular cross section, the top end of the polygonal driving portion 73 is integrally connected to the bottom end of the outer shaft portion 72, so that an outer shoulder 75 (shown in fig. 6) is formed therebetween, and the positioning groove 74 is provided at the bottom end of the polygonal driving portion 73. In addition, the pull pin 70 is inserted into the polygonal transmission hole 622 of the transmission shaft 62 of the transmission seat 60 in a vertically displaceable manner through the polygonal driving portion 73 of the driving shaft 71, when the pull pin 70 is located at a positioning position P1 shown in fig. 6, the outer shaft portion 72 of the driving shaft 71 of the pull pin 70 is sleeved on the inner shaft portion 262 of the fixed shaft 26 of the middle plate 25, and as shown in fig. 7, the positioning groove 74 of the driving shaft 71 of the pull pin 70 is engaged with the positioning portion 264 of the fixed shaft 26 of the middle plate 25, so that the pull pin 70 cannot drive the transmission seat 60 to rotate together relative to the base 20; on the contrary, when the pull pin 70 is located at the adjusting position P2 as shown in fig. 8, the outer shaft portion 72 of the driving shaft 71 of the pull pin 70 is still sleeved on the inner shaft portion 262 of the fixed shaft 26 of the middle plate 25, but the positioning groove 74 of the driving shaft 71 of the pull pin 70 is separated from the positioning portion 264 of the fixed shaft 26 of the middle plate 25, so that the polygonal driving portion 73 of the driving shaft 71 of the pull pin 70 and the polygonal transmission hole 622 of the transmission shaft 62 of the transmission seat 60 can be engaged with each other, as shown in fig. 9, so that the transmission seat 60 can be driven by the pull pin 70 to rotate together relative to the base 20.

As shown in fig. 2 and 4, the pull pin 70 further has an operating portion 76, the operating portion 76 is integrally connected to the top end of the outer shaft portion 72 of the driving shaft 71 and protrudes out of the upper half seat body 21 of the base through the top hole 212 of the upper half seat body 21 of the base 20, so that a user can conveniently operate the pull pin 70. The operating portion 76 of the pull pin 70 has an indicator symbol 77 (shown as an arrow) at the top end thereof, and when the pull pin 70 is located at the positioning position P1 shown in fig. 6, the indicator symbol 77 of the operating portion 76 corresponds to one of the shift position indicators 214, as shown in fig. 10.

The elastic member 80 is sleeved on the outer shaft portion 72 of the pull pin 70 and abuts between the inner and

outer shoulders

624 and 75 for providing an elastic force to keep the pull pin 70 at the positioning position P1 shown in fig. 6.

In actual operation, the operating portion 76 of the pull pin 70 first pulls the pull pin 70 upward from the positioning position P1 shown in fig. 6 to the adjustment position P2 shown in fig. 8, so that the positioning groove 74 of the driving shaft 71 of the pull pin 70 is disengaged from the positioning portion 264 of the fixed shaft 26 of the middle plate 25, and the elastic member 80 is pressed by the outer shoulder 75 of the pull pin 70 to accumulate restoring force, and then the pull pin 70 can start to rotate. In the process of rotating the pulling pin 70, the driving base 60 rotates together with the pulling pin 70 by using the clamping relationship between the polygonal driving portion 73 of the driving shaft 71 of the pulling pin 70 and the polygonal driving hole 622 of the driving shaft 62 of the driving base 60, as shown in fig. 11, at this time, the driving base 60 can support the two

lifting driving ropes

44 and 46 through one or more vertical rods 68, so that the routing manner of the two

lifting driving ropes

44 and 46 can be adjusted, and the effect of adjusting the resistance is further achieved. In the above adjustment process, the user can further control the resistance through the indicator symbol 77 of the pull pin 70 and the gear indicator 214 of the upper half seat 21 of the base 20, as shown in fig. 10, if the number of the file indicator 214 is larger, it indicates that the pull pin 70 drives the transmission seat 60 to rotate by a larger angle, which also indicates that the resistance of the lifting

transmission ropes

44 and 46 is larger.

After the adjustment to the positioning position, as long as the pulling force on the pulling pin 70 is released, the pulling pin 70 will be acted by the restoring force of the elastic element 80 to return to the positioning position P1 shown in fig. 6, so that the positioning slot 74 of the driving shaft 71 of the pulling pin 70 is engaged with the positioning portion 264 of the fixing shaft 26 of the middle plate 25, and at this time, the pulling pin 70 cannot be rotated, and the transmission seat 60 cannot be rotated accordingly.

In addition, as shown in fig. 2 and 4, the resistance adjustment module 50 further has a limiting ring 90 and a guide rod 93, the limiting ring 90 is disposed between the top and

middle plates

21, 25 of the base 20 and located at the upper half 242 of the opening 24, the guide rod 93 is disposed between the top and

middle plates

21, 25 of the base 20 and located between the limiting ring 90 and the transmission seat 60, in addition, the limiting ring 90 has an upper cross bar 91 and a lower cross bar 92 parallel to the upper cross bar 91, and the guide rod 93 is perpendicular to the upper and lower cross bars 91, 92 of the limiting ring 90. Therefore, when the two lifting

transmission ropes

44 and 46 pass through the upper half 242 of the opening 24 and out of the base 20, the lifting transmission rope 44 abuts against the boundary between the upper cross bar 91 of the limiting ring 90 and the guide rod 93, and the lifting transmission rope 46 abuts against the boundary between the lower cross bar 92 of the limiting ring 90 and the guide rod 93, so that the two lifting

transmission ropes

44 and 46 can be limited in the actuation range by the limiting ring 90 on one hand, and can be guided by the guide rod 93 on the other hand without being entangled with each other.

On the other hand, when the rope winder is assembled to the upper beam 12, as shown in fig. 1 and 2, the guide rails 216 of the upper half seat 21 of the base 20 are engaged with the two opposite flanges 14 of the upper beam 12, so that the whole rope winder 10 can be inserted into the upper beam 12 from one end of the upper beam 12, and the end plate 23 of the base 20 abuts against the end surface of the upper beam 12 to achieve the positioning effect. When the removal is to be performed, the end plate 23 of the base 20 is exposed to the outside of the upper beam 12, and the entire cord winder 10 can be removed from the upper beam 12 by using the end plate 23 to complete the removal.

In summary, the side entry rope winder 10 of the present invention can be quickly installed and removed from one end of the upper beam 12, and the resistance of the

elevation driving ropes

44 and 46 can be adjusted by pulling the pulling pin 70 up to the adjustment position P2 during operation, so that the entire process does not require structural disassembly and assembly, thereby achieving the effects of increasing the convenience of use and maintaining good assembly accuracy.

Claims

1. A side-entry cord winder for use with an exposed pull-cord-less window covering, comprising:

one end of the base is provided with an end plate, and the other end of the base is provided with an opening;

a first rotating wheel rotatably arranged on the base and adjacent to the end plate of the base, wherein the first rotating wheel is provided with an upper layer, a middle layer and a lower layer, and the space between the upper layer and the middle layer and the space between the middle layer and the lower layer are respectively divided by a disc part;

the second rotating wheel is rotatably arranged on the base and is adjacent to the opening of the base;

a coil spring connecting the lower layer of the first runner and the second runner; and

one end of the two lifting transmission ropes is respectively connected with the upper layer and the middle layer of the first rotating wheel, and the other end of the two lifting transmission ropes penetrates out of the base through the opening of the base;

the base is further provided with a middle plate, the middle plate is arranged between the upper half seat body and the lower half seat body of the base, the second rotating wheel is arranged between the middle plate and the lower half seat body, one side surface of the middle plate facing the upper half seat body is provided with a fixed shaft, and the fixed shaft is provided with a positioning part; the side-entry rope winder further comprises a resistance adjusting module, the resistance adjusting module is provided with a transmission seat and a pull pin, the transmission seat is provided with a transmission shaft and a plurality of vertical rods, the transmission shaft is provided with a polygonal transmission hole, the polygonal transmission hole of the transmission shaft is rotatably sleeved on the fixed shaft of the middle plate, the vertical rods are arranged around the transmission shaft and support the two lifting transmission ropes, the pull pin is provided with a polygonal driving part and a positioning groove arranged on the polygonal driving part, the polygonal driving part of the pull pin can be embedded in the polygonal transmission hole of the transmission shaft of the transmission seat in a vertically-shifting manner, when the pull pin is positioned at a certain position, the positioning groove of the pull pin is clamped at the positioning part of the fixed shaft of the middle plate, so that the pull pin can not drive the transmission seat to rotate relative to the base together, when the pull pin is positioned at an adjusting position, the positioning groove of the pull pin is separated from the positioning part of the fixed shaft of the middle plate, so that the pulling pin can drive the transmission seat to rotate together relative to the base.

2. The lateral cord winder for an exposed-cord-less window covering as claimed in claim 1, wherein the base comprises an upper half base and a lower half base connected to the upper half base, wherein one end of the upper half base has an upper end portion, one end of the lower half base has a lower end portion, and the upper end portion of the upper half base and the lower end portion of the lower half base abut against each other to form the end plate.

3. The side-entry cord winder for a window covering without exposed cord as claimed in claim 2, wherein the top surface of the upper body half of the base has two opposing guide rails.

4. The side entry cord winder for a window covering with no exposed cord as claimed in claim 2, wherein the top end of the wall of the driving hole has an inner shoulder, the pull pin further has an outer shaft portion with a circular cross section, the outer shaft portion is adjacent to the top end of the polygonal driving portion and forms an outer shoulder with the polygonal driving portion; the resistance adjusting module is further provided with an elastic piece, and the elastic piece is sleeved on the outer shaft part of the pull pin and is propped between the inner shoulder part and the outer shoulder part so as to keep the pull pin at the positioning position.

5. The side-entry cord winder for an unexposed pull-cord window covering of claim 4, wherein the top seat of the base has a top hole, the pull pin further has an operating portion connected to the top end of the outer shaft portion and protruding from the top surface of the top seat of the base through the top hole of the base.

6. The side entry cord winder for an unexposed pull-cord window covering, as recited in claim 5, wherein said top surface of said top base half of said base has a plurality of gear marks surrounding said top hole, said operating portion of said pull-pin has an indicator symbol, said indicator symbol corresponds to one of said gear marks when said pull-pin is in said positioning position.

7. The side-entry cord winder for an unexposed pull-cord type window curtain as claimed in claim 4, wherein said fixing shaft of said middle plate further has an inner shaft portion with a circular cross section, said inner shaft portion is connected to the top end of said positioning portion, and said outer shaft portion of said pull pin is rotatably sleeved on said inner shaft portion of said fixing shaft of said middle plate in a vertically displaceable manner.

8. The side-entry cord winder for non-exposed pull-cord window curtain as claimed in claim 2, wherein said driving seat further comprises an upper wing plate and a lower wing plate, said upper wing plate and said lower wing plate are connected to the top end and the bottom end of said driving shaft, said vertical rods are connected to said upper wing plate and said lower wing plate and are spaced in an arc shape around the center of the polygonal driving hole of said driving shaft.

9. The lateral-entry cord winder for an exposed pull-cord type window curtain as claimed in claim 2, wherein the resistance adjustment module further comprises a limiting ring and a guide bar, the limiting ring is disposed at one end of the base and adjacent to the opening, the limiting ring has an upper cross bar and a lower cross bar parallel to the upper cross bar, the guide bar is disposed between the upper base of the base and the middle plate and perpendicular to the upper and lower cross bars of the limiting ring, the two lifting transmission cords pass through the limiting ring, one of the lifting transmission cords abuts against the boundary between the upper cross bar of the limiting ring and the guide bar, and the other lifting transmission cord abuts against the boundary between the lower cross bar of the limiting ring and the guide bar.