KR200474511Y1

KR200474511Y1 - Curtain driving assembly

Info

Publication number: KR200474511Y1
Application number: KR2020130001923U
Authority: KR
Inventors: 이-친 타오
Original assignee: 이-친 타오
Priority date: 2013-03-14
Filing date: 2013-03-14
Publication date: 2014-10-30

Abstract

The curtain drive assembly includes a control set (1), a mount (2) and a cover (3). The control set (1) includes a stop sheet (11) and a chain wheel (12) cooperating with the bead chain (A). The stationary sheet 11 has a shaft 111 and the wall 116 is partially located around the shaft 111 to hide the bead chain A. [ The chain wheel 12 has a sleeve 121 mounted on the shaft 111. The mount (2) has a flange (21). At least one of the flange 21 and the chain wheel 12 has a lip 22 to form a gap S between the flange 21 and the chain wheel 12. The cover (3) is mounted on the chain wheel (12) to hide the bead chain (A). The cover 3 is a ring-shaped cover and has a plurality of engaging portions 32a, 32b on its inside. The engaging portions 32a and 32b are installed on the gap S and engaged with the flange 21. [

Description

[0001] CURTAIN DRIVING ASSEMBLY [0002]

The present invention relates to a curtain drive assembly, and more particularly to a drive assembly in which the bead chain is easily connected to the drive assembly and the steps for assembly are simplified.

A conventional curtain drive assembly is shown in Figure 6 and generally comprises a bead chain seat 4, a mount 5 and a bead chain 6, (41). A wall 42 extends from the bead chain sheet 4 and is positioned around the chain wheel 41. The mount 5 is connected to the chain wheel 41 to place the chain wheel 41 between the bead chain sheet 4 and the mount 5. The mount 5 has a flange 51 corresponding to the chain wheel 41. The bead chain 6 is wound on the bead chain sheet 4 and is not separated from the bead chain sheet 4 by the wall 42 and the flange 51. [

However, the steps for assembling the curtain drive assembly are complicated and inconvenient. At present, with regard to consumer requirements for the flexibility of choosing the bead chain 6 from a variety of specifications and types, the bead chain sheet 4, which by itself is the main drive set, The main drive set is always assembled first and then the selected bead chain 6 is assembled by the consumers to the chains of the main drive set 41 and the mount 5, And is installed on the wheel 41. The wall 42 and the flange 51 prevent the bead chain 6 from being assembled to the chain wheel 41 so that the assembling people / Or to forcibly bend the wall 42 and the flange 51 in order to install the bead chain 6. The former easily loses parts and the latter can fail the bead chain 6 by the wall 42 and / or the flange 51. [

TW 360028 B

The present invention seeks to provide a curtain driving assembly that overcomes the disadvantages of the above-mentioned conventional driving assembly.

The present invention relates to a curtain drive assembly including a stationary seat and a control set having a chain wheel cooperating with a bead chain. The stationary sheet has a shaft extending therefrom and a wall is partially located around the axis to cover the bead chain. The chain wheel has a sleeve extending from a position where the shaft is mounted. The mount is mounted on the sleeve and has a flange. The flange is positioned corresponding to the stop sheet. At least one of the flange and the chain wheel has a lip to form a gap between the flange and the chain wheel. A cover is mounted on the chain wheel of the control set to cover the bead chain. The cover is a ring-shaped cover and has a plurality of engaging portions on its interior. The engaging portions are provided on the gap and engaged with the flange.

Preferably, the shaft has a torsion spring having two legs on two ends and mounted thereon. The sleeve has an opening defined axially therethrough and intervenes with the inner space of the sleeve and is positioned corresponding to the torsion spring. The sleeve has two contact edges on two ends defining the opening, the two legs contacting the two contact edges.

Advantageously, the flange has a guide portion defined about its periphery and the guide portion is an inclined face or curved face which is installed in the gap and which engages the engaging portion < RTI ID = 0.0 > Guides.

Preferably, the cover has a plurality of stops that contact the wall of the stop sheet.

Preferably, said lip is a protrusion extending outwardly from said flange, said chain wheel having a recess for receiving said lip.

Preferably, the shaft of the stationary sheet has an extension portion on which a cap is mounted. The cap contacts the mount.

The main purpose of the present invention is to provide a curtain drive assembly and the bead chain can be easily installed in the drive assembly without repeatedly separating all components or forcing the wall to bend after the drive assembly is initially assembled . The bead chain is not dropped by the wall and the cover.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will become more apparent from the following detailed description, when taken in conjunction with the accompanying drawings, illustrating by way of example the preferred embodiments of the present invention, for purposes of explanation only.

1 is an exploded view of a curtain drive assembly of the present invention.
2 is a perspective view showing a curtain driving assembly of the present invention;
3 is a partial cross-sectional view of the curtain drive assembly of the present invention;
Fig. 4 is a view showing the assembled structure of the bead chain connected with the initial assembling configuration of the curtain driving assembly of the present invention.
5 is a view showing an assembled structure of the cover connected to the initial assembling structure of the curtain driving assembly of the present invention.
6 is a view showing an assembled structure of a bead chain connected to a main driving set of a conventional curtain driving assembly.

1 to 3, the curtain drive assembly of the present invention includes a control set 1 having a stationary seat 11 and a chain wheel 12, wherein the stationary seat 11 extends therefrom At least one torsion spring 112 with a shaft 111 is mounted to the shaft 111. The torsion spring 112 has two legs 113 on its two ends. The shaft 111 of the stop sheet 11 has an extension portion 114 on which the cap 115 is mounted. A wall 116 extends from the stationary sheet 11 and is partially located about the axis 111. [ The chain wheel 12 further includes a sleeve 121 mounted on and extending from the shaft 111. The sleeve 121 has an opening 122 corresponding to the torsion spring 112 and defined axially therethrough. The sleeve 121 has two contact edges 123 on two ends defining the opening 122 and the two legs 113 are connected to the two contact edges 123 Contact. The chain wheel 12 has a concave portion 124.

A mount 2 is mounted on the sleeve 121 and is positioned between the cap 115 and the chain wheel 12. [ The mount (2) has a flange (21) located corresponding to the chain wheel (12). At least one of the flange (21) and the chain wheel (12) has a lip (22), for example a protrusion. The lip 22 is positioned between the flange 21 and the chain wheel 12 so that a gap S is formed between the flange 21 and the chain wheel 12. In this embodiment, the lip 22 extends from the flange 21 and is positioned corresponding to the recess 124. Alternatively, the lip 22 may also extend from the chain wheel 12. The flange 21 has a guide portion 23 defined therearound and the guide portion 23 is an inclined or curved surface.

The cover 3 is provided on the chain wheel 12 of the control set 1 and has a plurality of stops 31 that contact the wall 116 of the stop sheet 11. The cover 3 is a ring-shaped cover and has a plurality of engaging portions 32a, 32b on its interior.

1 to 5, when assembled, the shaft 111 is installed in the sleeve 121 and is pivotally connected to the sleeve 121. The legs 113 of the torsion spring 112 extending from the opening 122 contact the contact edges 123 of the sleeve 121. The mount 2 is then mounted on the sleeve 121 of the chain wheel 12 and the cap 115 is then inserted between the cap 115 and the chain wheel 12 to complete the initial assembly Is mounted to the extension portion (114) of the shaft (111) for securing the mount (2). Preferably, in another initial assembly configuration, the control set 1 is connected to the mount 2 without the assembly of the cap 15. After the desired bead chain (A) is selected, the bead chain (A) is connected to the chain wheel (12). Preferably, the radial width of the flange 21 is less than the radial width of the chain wheel 12 so that when the bead chain A is installed in the initial assembly configuration, 12). More specifically, when the bead chain (A) is assembled to the chain wheel (12), the bead chain (A) first partially engages in the chain wheel (12) and preferably a pulling portion And a follow-on engaging portion that is not engaged with the chain wheel 12 (not shown), and then the pulling portion of the bead chain A is pulled to rotate the chain wheel 12 , And at the same time, the rotation of the chain wheel 12 gradually winds the subsequent engagement portion of the bead chain A as shown in Fig. With the above-mentioned arrangement, the bead chain (A) can be installed in the control set (1) after the initial assembly is completed and bend the wall (116) to install the bead chain Or to separate parts. Further, after the bead chain (A) or the subsequent portion of the bead chain (A) adjacent to the wall (16) engages the chain wheel (12), the cover (3) And is mounted to the flange 21 as shown. More specifically, when the cover 3 is mounted on / depressed on the chain wheel 12, the engaging portions 32a, 32b are guided by the guide portion 32 to engage the gap S And is engaged with the flange 21. [

As a result, the curtain drive assembly is fully assembled. The bead chain (A) is prevented from falling off the control set (1) by the wall (116) and the cover (3).

Although the embodiments according to the present invention have been shown and described, it will be apparent to one skilled in the art that other embodiments may be made without departing from the scope of the present invention.

1: Control set 2: Mount
3: Cover A: Bead chain
11: Stop sheet 12: Chain wheel
21: flange 22: lip
111: Axis 121: Sleeve

Claims

A control set (1) having a stop sheet (11) and a chain wheel (12) to which the bead chain (A) meshes;
A mount (2) mounted on the sleeve (121) and having a flange (21);
And a cover (3) mounted on the chain wheel (12) of the control set (1) and configured to cover the bead chain (A)
The stop sheet 11 is configured to cover the bead chain A with a shaft 111 extending therefrom and a wall 116 partially located around the shaft 111 and the chain wheel 12 Has a sleeve (121) mounted on and extending from said shaft (111)
Wherein at least one of the flange 21 and the chain wheel 12 has a lip 22 so that the flange 21 and the chain wheel 12 And a gap S is formed therebetween,
The cover 3 forms a ring-shaped cover and has on its interior a plurality of engaging portions 32a and 32b, the engaging portions 32a and 32b being installed in the gap S, (21).

2. The apparatus of claim 1, wherein the shaft (111) has at least one torsion spring (112) having two legs (113) on two ends and mounted thereon, the sleeve (121) (122) defining an opening (122) defining an opening (122), said opening (122) being located corresponding to said torsion spring (112) Having two contact edges (123) on said two legs (113), said two legs (113) contacting said two contact edges (123).

2. The device according to claim 1, characterized in that the flange (21) has a guide portion (23) defined around it and the guide portion (23) is inclined or curved so that it is installed in the gap (S) And guides the engaging portions (32a, 32b) for engagement.

2. The curtain drive assembly of claim 1, wherein the cover (3) has a plurality of stops (31) that contact the wall (116) of the stationary sheet (11).

2. A curtain drive assembly (1) as claimed in claim 1 wherein said lip (22) is a protrusion extending outwardly from said flange (21), said chain wheel (12) having a recess (124) .

2. The apparatus according to claim 1, wherein the shaft (111) of the stationary seat (11) has an extension portion (114) on which the cap (115) is mounted, Assembly.

2. The curtain drive assembly of claim 1 wherein the radial width of the flange (21) is less than the radial width of the chain wheel (12).