TW201544673A - Strip-less rolling blind - Google Patents

Abstract

A strip-less rolling blind includes a fastening seat, a hanging seat, a rolling blind unit and a reeling device. The rolling blind unit includes a roller rotatably disposed between the fastening seat and the hanging seat. The hanging seat includes a first hanging wall formed with an abutting surface. The reeling device includes a shell unit and a reeling unit disposed on the shell unit and allowing the roller to be provided with a reeling action force. The shell unit includes a first shell abutting surface abutted against the abutting surface of the hanging seat when the hanging seat is located at a lateral hanging position, and a second shell abutting surface abutted against the abutting surface of the hanging seat when the hanging seat is located at a suspending position. Accordingly, the reeling device can remain vertical when the installing orientation of the rolling blind is changed, so the protruding length after installation can be reduced.

Description

Cordless roller blind

The present invention relates to a roller blind, and more particularly to a cordless roller blind that can be retracted without the need for a drawstring.

Referring to the invention patent of No. I420019 of FIG. 1 and 2, the invention patent discloses a cordless roller blind 1 which can be mounted on a mounting wall 10 in the form of a wall and which comprises a fixing seat 11 and a A cradle 12 spaced apart from the fixing base 11 and a retracting device 13 mounted on the inside of the cradle 12, and a roller blind unit 14 erected between the fixing base 11 and the retracting device 13. The roller blind unit 14 includes a reel 141, a linkage head 142 that is coupled to the reel 141 in conjunction with the reel 141, and a curtain 143 that is wound around the outer surface of the reel 141. The cradle 12 includes a fixed wall 121 mountable on the mounting wall 10, a protruding frame wall 122 perpendicular to the fixed wall 121 and protruding toward the front of the mounting wall 10, and two protruding frames The wall 122 is directed to the shaft bodies 123, 124 which project perpendicularly to the take-up device 13.

The retracting device 13 includes a cover 131 that is disposed inside the protrusion wall 122 of the hanger 12, a retracting wheel 132 rotatably mounted on the shaft 124, and a torsion spring 133. Rolling wheel 132 The linking head 142 is coupled in a linked manner, and one end of the torsion spring 133 is mounted on the shaft body 123 of the hanging seat 12, and the other end is wound and fixed on the winding wheel 132. By utilizing the torsion force of the torsion spring 133 and the weight fit of the roller blind unit 14, the roller blind unit 14 can be maintained in equilibrium without the drawstring, and when the external force breaks the balance relationship (for example, pushing or lowering the curtain 143) The vertical length of the curtain 143 of the roller blind unit 14 can be adjusted.

Although the foregoing invention patent can achieve the purpose of no cord handling by the retracting device 13, when the roller blind 1 is mounted on the mounting wall 10 perpendicular to the ground, the shaft body is wound by the torsion spring 133. The 123 and the rewinding wheel 132 are disposed in front and rear. Therefore, the length of the roller blind 1 protruding forward is large after the installation, that is, the cover body 131 is preferably designed to cover the torsion spring 133, and the optimal design is elongated. When the roller blind 1 is mounted on the mounting wall 10, the long side of the cover 131 is perpendicular to the mounting wall 10, not only highlighting the length of the mounting wall 10, but also being unsightly after assembly. In the case of a large roller blind 1 which requires more torque to balance, the protruding length is more conspicuous, so the range of use is limited.

SUMMARY OF THE INVENTION The object of the present invention is to provide a cordless roller blind which can improve the aesthetics of the installation and is suitable for use in situations where a large torque is required.

The cordless roller blind of the present invention can be mounted on a mounting wall by hanging or side hanging, and comprises: a fixing seat, a hanging seat, a roller blind unit erected between the fixing seat and the hanging seat, and a winding The device includes a reel rotatably mounted between the mount and the pylon, and the cradle includes a first wall mounted on the mounting wall, And a second hanging wall for arranging the reel, the first hanging wall has an abutting surface, the retracting device comprises a housing unit, and one of the housing units is mounted on the housing unit and the reel has a retracting function a force retracting unit having at least one first shell abutting surface abutting the abutting surface of the hanging seat when the hanging seat is in a side hanging position, and a hanging seat when the hanging seat is in a hanging position In the position, the second shell abuts against the abutting surface of the hanging seat.

The beneficial effect of the invention is that the retracting device is hung on the mounting wall regardless of whether the hanging seat is in the hanging position or the side hanging position, which not only reduces the protruding length after installation, but also improves the appearance after installation. It also makes the roller blind suitable for applications requiring large torque.

10‧‧‧Installation wall

20‧‧‧Retracting device

21‧‧‧ Fixed seat

211‧‧‧ fixed wall

212‧‧‧ protruding wall

22‧‧‧Rolling blind unit

220‧‧‧ Rotating Center

221‧‧‧ reel

222‧‧‧ cord

223‧‧‧ linkage section

224‧‧‧ fulcrum

23‧‧‧ hanging

231‧‧‧First wall

232‧‧‧Second wall

233‧‧‧Abutment

234‧‧‧ fulcrum hole

4‧‧‧ housing unit

40‧‧‧Main housing

41‧‧‧ shell wall

411‧‧‧Perforation

42‧‧‧Connecting the ring wall

421‧‧‧The first shell meets

422‧‧‧The second shell meets

423‧‧‧ first side

424‧‧‧ second side

43‧‧ ‧ room

44‧‧‧ card offset

441‧‧‧ card to face

442‧‧‧ first shell meets

5‧‧‧Receiving unit

51‧‧‧First gear

511‧‧‧Linking holes

52‧‧‧second gear

53‧‧‧Retracting shrapnel

531‧‧‧ fixed end

L1‧‧‧ card arrival distance

L2‧‧‧ hanging distance

L3‧‧‧ shortest distance

L4‧‧‧ lateral distance

W‧‧‧ Height

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is an exploded perspective view of one of the invention patents No. I420019; FIG. 2 is a patent of FIG. Figure 3 is a front elevational view of a first preferred embodiment of the roller blind of the present invention, wherein one of the roller blinds is in a hanging position; Figure 4 is a first preferred embodiment of the first preferred embodiment. A partial exploded view mainly illustrates the relative relationship between a take-up device of the roller blind and the hanger; FIG. 5 is a partial sectional view of the first preferred embodiment, wherein the hanger is also located in the vertical Figure 6 is a partial side elevational view of the first preferred embodiment, illustrating a retracting unit of the roller blind; Figure 7 is a reference view of the use state of the first preferred embodiment, in which the pylon is also located in the hanging position; Figure 8 is a reference view similar to Figure 7, in which the hanging seat is on one side FIG. 9 is a combined perspective view of the first preferred embodiment, in which the hanging seat is in the side hanging position; FIG. 10 is a view similar to FIG. 4, illustrating a second preferred embodiment of the roller blind of the present invention. Embodiment 11 is a use state reference diagram of the second preferred embodiment in which the hanging seat is in the hanging position; and FIG. 12 is a view similar to FIG. 11 in which the hanging seat is on the side Hanging position.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 3, 4 and 5, a first preferred embodiment of the cordless roller blind of the present invention is adapted to be mounted on a mounting wall 10 in a hanging or side-hanging manner. The mounting wall 10 may be a ceiling parallel to the ground. The beam may also be a wall perpendicular to the ground, and the mounting wall 10 disclosed in FIG. 3 is in the form of a ceiling. The roller blind comprises: a fixing base 21 hanging below the mounting wall 10, a hanging seat 23 hanging below the mounting base 10 and spaced apart from the fixing base 21, and a mounting bracket 21 on the fixing seat 21 and The roller blind unit 22 between the hangers 23 and a take-up device 20 for causing the roller blind unit 22 to have a winding force. The fixing seat 21 includes a fixing member mounted on the security A fixed wall 211 below the wall 10 and a protruding frame wall 212 perpendicular to the fixed wall 211. The pedestal 23 is replaceable between a hanging position and a side hanging position, and includes a first hanging wall 231 mounted under the mounting wall 10 and a second hanging perpendicular to the first hanging wall 231 The wall 232 has abutment surface 233 away from the mounting wall 10, and the second wall 232 has a fulcrum hole 234 extending transversely therethrough.

In this embodiment, the roller blind unit 22 includes a reel 221 that is rotatably mounted around the rotation center 220 between the fixing base 21 and the pedestal 23, and a retractable and collapsible reel on the reel 221 The cord 222 has a linking section 223 that penetrates into the retracting device 20, and a pivot point that is axially coupled to the linking section 223 and rotatably inserted into the fulcrum hole 234 of the cradle 23. Segment 224. Since the improvement of the present invention is not related to the structure of the fixing base 21 and the roller blind unit 22, it will not be described in detail.

The retracting device 20 of the present embodiment includes a housing unit 4, and a retracting unit 5 mounted inside the housing unit 4 and having the reel 221 of the roller unit 22 having a retracting force. The housing unit 4 has a main housing 40 which is substantially abutted by two housings. The main housing 40 has two left and right spaced housing walls 41 and a connection between the housing walls 41. A ring wall 42 and a chamber 43 defined by the shell wall 41 and the connecting ring wall 42 for receiving the take-up unit 5. Each of the casing walls 41 has a perforation 411 located on the center of rotation 220 for the passage of the interlocking section 223 of the spool 221. The connecting ring wall 42 has two parallel spaced first shell abutting faces 421 and a second shell abutting surface 422 connected above the first shell abutting faces 421.

Referring to Figures 4 and 6, the retracting unit 5 is mounted in the chamber 43 of the housing unit 4, and the structure thereof is not particularly limited as long as the reel 221 can have a restoring force. In the preferred embodiment, the retracting unit 5 has a first gear 51, a second gear 52, and a first gear 51 and the second gear 52 connected to the first gear 51. A retractable elastic piece 53 having a retracting force. The first gear 51 has an interlocking hole 511 which is inserted into the interlocking section 223 of the reel 221, and the second gear 52 meshes with the first gear 51. The retractable elastic piece 53 has two separate hooks. The first gear 51 and the fixed end 531 of the second gear 52 thereby allow the first gear 51 and the reel 221 of the card to have a retracting force.

Referring to Figures 3, 5 and 7, after the assembly of the first preferred embodiment of the present invention, the abutment surface 233 of the hanger 23 has a card offset distance L1 between the center of rotation 220 of the spool 221, and the The second shell abutment surface 422 of the shell unit 4 has a hanging distance L2 between the rotating center 220 and the first shell abutting surface 421 to the rotating center 220, and the shortest distance L3, wherein the shortest distance The distance L3 = the hanging distance L2 = the carding distance L1.

When the hanging seat 23 is in the hanging position, the fixing wall 211 of the fixing seat 21 and the first hanging wall 231 of the hanging seat 23 are installed below the mounting wall 10 at intervals, and the fixing seat is fixed. The protruding wall 212 of the 21 and the second hanging wall 232 of the hanging 23 are parallel to each other. The interlocking section 223 of the reel 221 of the roller blind unit 22 passes through the through holes 411 of the housing unit 4, and is interlocked with the interlocking hole 511 of the first gear 51 of the retracting unit 5. The fulcrum section 224 of the reel 221 is rotatably disposed in the fulcrum hole 234 of the cradle 23 and forms a pivot point. At this time, since the carding distance L1 is equal to the hanging distance L2, when the curtain 222 of the roller blind unit 22 is pulled down, the winding device 20 does not rotate with an external force, and is stable and does not rotate. Hanging below the mounting wall 10.

Referring to Figures 4, 8, and 9, when the cradle 23 is switched to the side-hanging position shown in Figures 8 and 9, the fixed wall 211 of the fixing base 21 and the first wall of the pedestal 23 are also referred to. The 231 is installed at intervals on the mounting wall 10, and the roller blind unit 22 is placed between the fixing base 21 and the pedestal 23. After the erection, since the shortest distance L3 of the housing unit 4 is equal to the clamping distance L1, after the installation, not only the retracting device 20 is still perpendicular to the ground, but the housing unit 4 can also be used by the first housing. One of the abutment faces 421 abuts against the abutment surface 233 of the hanger 23 to prevent the take-up device 20 from rotating as the curtain 222 is pulled.

That is, the roller blind of the first preferred embodiment of the present invention, whether side-hanging on a mounting wall 10 such as a wall, or hanging under a mounting wall 10 such as a ceiling, the housing unit 4 can The abutment surface 233 of the cradle 23 abuts. In addition to avoiding the fact that the retracting device 20 protrudes too much from the mounting wall 10 in the side-hanging position, which affects the aesthetics of the installation, when the size of the roller blind is large and requires a large torque fit, the present embodiment For example, a plurality of retracting units 5 can be connected in series in a direction perpendicular to the ground. The above-mentioned series connection does not cause the components to be too prominent, so the present invention is suitable for applications requiring a large torque.

Referring to Figures 10, 11, and 12, one of the cordless roller blinds of the present invention The structure of the second preferred embodiment is similar to that of the first preferred embodiment, except that the housing unit 4 has a main housing 40 for receiving the retracting unit 5, and a main assembly 40 A latching member 44 between the housing 40 and the abutment surface 233 of the hanger 23. The connecting ring wall 42 of the main housing 40 has two first side edges 423 and a second side 424 that vertically connects the first side edges 423. The first side edge 423 and the second side edge 424 to the rotation center 220 of the reel 221 have a side distance L4 of the same length, and the side edge distances L4 are smaller than the abutment surface 233 of the pedestal 23 to The rotation between the centers of rotation 220 is a distance L1.

In this embodiment, the latching member 44 of the housing unit 4 has a card abutting surface 441 which can abut against one of the first side 423 and the second side 424 of the main housing 40. And a first shell abutment surface 442 that can abut against the abutment surface 233 of the pedestal 3, that is, a height W between the card abutment surface 441 and the first shell abutment surface 442, the height W+ the side distance L4 = card offset distance L1.

Specifically, the height of the fulcrum hole 234 of the cradle 3 in this embodiment may be changed due to the thickness of the 222, the length of the 222, and the mounting height of the reel 221, that is, the yoke of the pedestal 23 The distance L1 may be increased due to the need of use. However, in order to facilitate the normalized manufacture of the retracting device 20, the second preferred embodiment of the present invention allows the housing unit of the retracting device 20 to be provided by adding the engaging member 44. 4 The bracket 23 of any size can be mounted on the cradle 23 stably and non-rotatingly. Therefore, the second preferred embodiment of the present invention has the advantages of the first preferred embodiment. It is more convenient to manufacture.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

10‧‧‧Installation wall

20‧‧‧Retracting device

22‧‧‧Rolling blind unit

220‧‧‧ Rotating Center

221‧‧‧ reel

222‧‧‧ cord

223‧‧‧ linkage section

224‧‧‧ fulcrum

23‧‧‧ hanging

231‧‧‧First wall

232‧‧‧Second wall

233‧‧‧Abutment

234‧‧‧ fulcrum hole

4‧‧‧ housing unit

40‧‧‧Main housing

41‧‧‧ shell wall

411‧‧‧Perforation

42‧‧‧Connecting the ring wall

422‧‧‧The second shell meets

43‧‧ ‧ room

5‧‧‧Receiving unit

51‧‧‧First gear

511‧‧‧Linking holes

52‧‧‧second gear

53‧‧‧Retracting shrapnel

L1‧‧‧ card arrival distance

L2‧‧‧ hanging distance

Claims (9)

A cordless roller blind mountable on a mounting wall and comprising: a fixing seat mounted on the mounting wall; a hanging seat spaced apart from the fixing seat and including a first mounting on the mounting wall a hanging wall, and a second hanging wall, the first hanging wall has an abutting surface; a roller blind unit comprising a reel rotatably mounted between the fixing seat and the second hanging wall of the hanging seat; And a retracting device comprising a housing unit, and a retracting unit mounted on the housing unit and having the reel having a retracting force, the housing unit having at least one when the hanging seat is on one side a first shell abutting surface abutting against the abutting surface of the hanging seat, and a second shell abutting surface abutting against the abutting surface of the hanging seat when the hanging seat is in a hanging position. A cordless roller blind according to claim 1, wherein the housing unit has a main housing having two spaced-apart housing walls and a connecting ring wall connected between the housing walls Each of the shell walls has a perforation located at a center of rotation of the reel, and the connecting ring wall has two first shell abutting faces disposed in parallel, the second shell abutting faces being joined to the first shell Between the abutting faces, the abutting surface of the pylon has a carding distance between the center of rotation of the reel, and each of the first shell abutting faces has a shortest distance between the centers of rotation of the reels, and the second casing abuts The surface has a hanging distance between the center of rotation of the reel, and the card abutment distance, the shortest distance and the length of the hanging distance are the same. The cordless roller blind of claim 2, wherein the second wall of the hanger has a fulcrum hole located in the center of rotation, and the spool has a coupling unit with the take-up unit of the take-up device a linkage section and a fulcrum section rotatably inserted in the fulcrum hole of the pedestal. The cordless roller blind of claim 3, wherein the main housing of the retracting device further has a housing for receiving the retracting unit, and the retracting unit has a sleeve that is interlocked with the interlocking section of the reel a first gear that is coupled, a second gear that meshes with the first gear, and a retractable spring that connects the first gear and the second gear and causes the first gear to have a retracting force. A cordless roller blind according to claim 1, wherein the housing unit comprises a main housing and a latching member interposed between the main housing and the abutting surface of the mounting. The cordless roller blind of claim 5, wherein the main housing has a connecting ring wall having two parallel spaced first sides, and at least one vertically connected to the first sides a second side edge between the sides, and the latching member has a latching surface abutting against one of the first side edge and the second side edge, the first shell abutting surface is disposed at the The card is placed on the part and is spaced from the card. The cordless roller blind of claim 6, wherein the reel is rotated about a center of rotation, and a height between the abutting surface of the engaging member and the first shell abutting surface is The first and second sides and the center of rotation have a side distance of the same length, and the abutment surface of the pedestal has a card offset distance to the center of rotation of the reel. The sum of the side distances and the length of the height is equal to the card offset distance. The cordless roller blind of claim 7, wherein the second wall of the hanger has a fulcrum hole in the center of rotation, and the spool has a coupling unit with the take-up unit of the take-up device The interlocking section and a fulcrum section rotatably inserted in the fulcrum hole of the pedestal. The cordless roller blind of claim 8, wherein the main housing has a housing for receiving the retracting unit, and the retracting unit has a sleeve that is interlocked with the interlocking portion of the reel. a gear, a second gear that meshes with the first gear, and a reel that connects the first gear and the second gear and causes the first gear to have a retracting force.