US20140048499A1 - Transmission device for curtains - Google Patents
Transmission device for curtains Download PDFInfo
- Publication number
- US20140048499A1 US20140048499A1 US13/618,231 US201213618231A US2014048499A1 US 20140048499 A1 US20140048499 A1 US 20140048499A1 US 201213618231 A US201213618231 A US 201213618231A US 2014048499 A1 US2014048499 A1 US 2014048499A1
- Authority
- US
- United States
- Prior art keywords
- frames
- mandrel
- transmission device
- bottom board
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
- E06B9/32—Operating, guiding, or securing devices therefor
- E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
- E06B9/32—Operating, guiding, or securing devices therefor
- E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
- E06B2009/3222—Cordless, i.e. user interface without cords
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
- E06B9/32—Operating, guiding, or securing devices therefor
- E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
- E06B2009/3225—Arrangements to aid the winding of cords rollers
- E06B2009/3227—Axially moving rollers
Definitions
- the present invention relates to a transmission device, and more particularly, to a transmission device for curtains and the transmission device is cooperated with different sizes of curtains.
- the conventional transmission device for curtains generally comprises a first frame located at one end of the head box and multiple second frames are located at the other end of the head box.
- the Multiple mandrels are rotatably engaged with the second frames.
- the cords are wrapped to the first frame and pass through the first frames are wrapped around the mandrels.
- the cords then pass through the bottom board of the head box and fixed to the curtain. By operation to the cords, the curtain is lifted or lowered.
- the first frame, the multiple second frames and the multiple mandrels are not able to be cooperated with different sizes of the head boxes.
- the second frames are located at distances so that they are installed to the head box individually. The time required for installation of the second frames and mandrels is long and inconvenient.
- the present invention intends to provide a transmission device for curtains and the transmission device is able to be cooperated with different sizes of the head boxes.
- the present invention relates to a transmission device for curtains includes a bottom board and a mandrel unit is connected on the bottom board.
- the mandrel unit has two first frames and a mandrel which is engaged with the engaging portions of the two first frames.
- a second frame has a bottom plate, a top plate, a wheel and multiple rollers, wherein the wheel and the rollers are connected between the bottom plate and the top plate.
- the rollers are located on two sides of the wheel which has a spool.
- a cord is wrapped between the spool and the mandrel.
- a coil spring is connected to the spool.
- the guide holes in the bottom board allow the two first frames to be connected to the bottom board easily.
- the primary object of the present invention is to provide a transmission device for curtains and the transmission device can be connected with different sizes of head boxes.
- FIG. 1 is a perspective view to show the transmission device of the present invention
- FIG. 2 is an exploded view to show the transmission device of the present invention and a head box;
- FIG. 3 is a cross sectional view to show that the cord is wrapped around the mandrel which is connected to the two first frames, the two first frames are connected to the bottom board which is connected on the head box;
- FIG. 4 is a cross sectional view to show that the cord is wrapped around the spool of the second frame and then wrapped to the mandrel connected to the two first frames, the two first frames are connected to the bottom board which is connected on the head box;
- FIG. 5 is a cross sectional view to show that the cord is wrapped around the spool of the second frame and then wrapped to the mandrel connected to the two first frames, the cord extends through the head box;
- FIG. 6 shows that the curtain having the transmission device of the present invention is expanded
- FIG. 7 shows that the curtain having the transmission device of the present invention is collected.
- the transmission device for curtains of the present invention is received in the top box of the curtain and comprises a bottom board 10 which has multiple guide holes 11 defined therethrough.
- a mandrel unit 20 comprises at least two first frames 21 and a mandrel 22 .
- Each of the at least two first frames 21 has an engaging portion 210 and a passage 211 .
- the mandrel 22 is engaged with the engaging portions 210 of the at least two first frames 21 .
- Each of the at least two first frames 21 has a through hole 212 and a connection member 212 A is engaged with the through hole 212 and one of the guide holes 11 in the bottom board 10 so that the at least two first frames 21 are fixed to the bottom board 10 .
- the guide holes 11 in the bottom board 10 allow the at least two first frame 21 to be connected to the bottom board 10 easily.
- a second frame 30 comprises a bottom plate 31 , a top plate 32 , a wheel 33 and multiple rollers 34 .
- the wheel 33 and the rollers 34 are connected between the bottom plate 31 and the top plate 32 , and the rollers 34 are located on two sides of the wheel 33 .
- the wheel 33 has a spool 330 and a cord 330 A has one end wrapped to the spool 330 .
- a coil spring 331 is connected to the spool 330 .
- the other end of the cord 330 A extends through the passage 211 of one of the at least two first frames 21 and is wrapped to the mandrel 22 .
- connection parts 12 are then fixed to the bottom panel of the head box.
- FIG. 6 shows that the curtain having the transmission device of the present invention is expanded and FIG. 7 shows that the curtain having the transmission device of the present invention is collected.
- the users can purchase the combination of the bottom board 10 and the first and second frames 21 , 30 , and the combination can be installed to any existed head box.
- the assembling time required is shortened and the manufacturers do not need to produce different sizes of the first and second frames 21 , 30 so as to reduce the cost.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
A transmission device for curtains includes a bottom board and a mandrel unit is connected on the bottom board. The mandrel unit has first frames and a mandrel which is engaged with the engaging portions of the first frames. The bottom board has multiple guide holes and the first frames are easily connected to the bottom board at the suitable guide holes. A second frame includes a bottom plate, a top plate, a wheel and multiple rollers, wherein the wheel and the rollers are connected between the bottom plate and the top plate. The wheel has a spool and a cord is wrapped between the spool and the mandrel. A coil spring is connected to the spool. Two control cords are wrapped to the mandrel and extends through the head box of the curtain and are connected to the bottom bar of the curtain.
Description
- The present invention relates to a transmission device, and more particularly, to a transmission device for curtains and the transmission device is cooperated with different sizes of curtains.
- The conventional transmission device for curtains generally comprises a first frame located at one end of the head box and multiple second frames are located at the other end of the head box. The Multiple mandrels are rotatably engaged with the second frames. The cords are wrapped to the first frame and pass through the first frames are wrapped around the mandrels. The cords then pass through the bottom board of the head box and fixed to the curtain. By operation to the cords, the curtain is lifted or lowered.
- However, the first frame, the multiple second frames and the multiple mandrels are not able to be cooperated with different sizes of the head boxes. Furthermore, the second frames are located at distances so that they are installed to the head box individually. The time required for installation of the second frames and mandrels is long and inconvenient.
- The present invention intends to provide a transmission device for curtains and the transmission device is able to be cooperated with different sizes of the head boxes.
- The present invention relates to a transmission device for curtains includes a bottom board and a mandrel unit is connected on the bottom board. The mandrel unit has two first frames and a mandrel which is engaged with the engaging portions of the two first frames. A second frame has a bottom plate, a top plate, a wheel and multiple rollers, wherein the wheel and the rollers are connected between the bottom plate and the top plate. The rollers are located on two sides of the wheel which has a spool. A cord is wrapped between the spool and the mandrel. A coil spring is connected to the spool. The guide holes in the bottom board allow the two first frames to be connected to the bottom board easily.
- The primary object of the present invention is to provide a transmission device for curtains and the transmission device can be connected with different sizes of head boxes.
- The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
-
FIG. 1 is a perspective view to show the transmission device of the present invention; -
FIG. 2 is an exploded view to show the transmission device of the present invention and a head box; -
FIG. 3 is a cross sectional view to show that the cord is wrapped around the mandrel which is connected to the two first frames, the two first frames are connected to the bottom board which is connected on the head box; -
FIG. 4 is a cross sectional view to show that the cord is wrapped around the spool of the second frame and then wrapped to the mandrel connected to the two first frames, the two first frames are connected to the bottom board which is connected on the head box; -
FIG. 5 is a cross sectional view to show that the cord is wrapped around the spool of the second frame and then wrapped to the mandrel connected to the two first frames, the cord extends through the head box; -
FIG. 6 shows that the curtain having the transmission device of the present invention is expanded, and -
FIG. 7 shows that the curtain having the transmission device of the present invention is collected. - Referring to
FIGS. 1 to 5 , the transmission device for curtains of the present invention is received in the top box of the curtain and comprises abottom board 10 which hasmultiple guide holes 11 defined therethrough. - A
mandrel unit 20 comprises at least twofirst frames 21 and amandrel 22. Each of the at least twofirst frames 21 has anengaging portion 210 and apassage 211. Themandrel 22 is engaged with theengaging portions 210 of the at least twofirst frames 21. Each of the at least twofirst frames 21 has a throughhole 212 and aconnection member 212A is engaged with the throughhole 212 and one of theguide holes 11 in thebottom board 10 so that the at least twofirst frames 21 are fixed to thebottom board 10. Theguide holes 11 in thebottom board 10 allow the at least twofirst frame 21 to be connected to thebottom board 10 easily. - A
second frame 30 comprises abottom plate 31, atop plate 32, awheel 33 andmultiple rollers 34. Thewheel 33 and therollers 34 are connected between thebottom plate 31 and thetop plate 32, and therollers 34 are located on two sides of thewheel 33. Thewheel 33 has aspool 330 and acord 330A has one end wrapped to thespool 330. Acoil spring 331 is connected to thespool 330. The other end of thecord 330A extends through thepassage 211 of one of the at least twofirst frames 21 and is wrapped to themandrel 22. There are two control cords respectively wrapped to themandrel 22 and the two respective distal ends of the two control cords extend through two holes defined through the bottom panel of the top box of the curtain and are connected to the bottom bar of the curtain. Thebottom board 10 is installed to the bottom panel of the head box by extending connection parts 12 through thebottom board 10 and the connection parts 12 are then fixed to the bottom panel of the head box. -
FIG. 6 shows that the curtain having the transmission device of the present invention is expanded andFIG. 7 shows that the curtain having the transmission device of the present invention is collected. - The users can purchase the combination of the
bottom board 10 and the first andsecond frames second frames - While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
Claims (3)
1. A transmission device for curtains, comprising:
a bottom board;
a mandrel unit having at least two first frames and a mandrel, each of the at least two first frames having an engaging portion and a passage, the mandrel engaged with the engaging portions of the at least two first frames, and
a second frame having a bottom plate, a top plate, a wheel and multiple rollers, the wheel and the rollers connected between the bottom plate and the top plate, the rollers located on two sides of the wheel, the wheel having a spool and a cord wrapped between the spool and the mandrel, a coil spring connected to the spool.
2. The transmission device as claimed in claim 1 , wherein the bottom board has multiple guide holes.
3. The transmission device as claimed in claim 2 , wherein each of the at least two first frames has a through hole and a connection member is engaged with the through hole and one of the guide holes in the bottom board.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW101215770U TWM443062U (en) | 2012-08-16 | 2012-08-16 | Curtain body transmission mechanism |
TW101215770 | 2012-08-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140048499A1 true US20140048499A1 (en) | 2014-02-20 |
Family
ID=48088880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/618,231 Abandoned US20140048499A1 (en) | 2012-08-16 | 2012-09-14 | Transmission device for curtains |
Country Status (2)
Country | Link |
---|---|
US (1) | US20140048499A1 (en) |
TW (1) | TWM443062U (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150136892A1 (en) * | 2013-11-20 | 2015-05-21 | Min-Che Hung | Cord winding structure for window blind |
US9297203B2 (en) * | 2014-03-13 | 2016-03-29 | Mei-Chin Hsueh-Cheng | Curtain drawstring structure |
US20170130525A1 (en) * | 2015-11-09 | 2017-05-11 | Li-Ming Cheng | Fixing Assembly for Shading Body |
US20220195795A1 (en) * | 2020-12-22 | 2022-06-23 | Wen Ying Liang | Scrolling unit for electric blinds |
US20230414027A1 (en) * | 2022-06-23 | 2023-12-28 | Yan Chen | Novel cord retracting-releasing apparatus |
-
2012
- 2012-08-16 TW TW101215770U patent/TWM443062U/en not_active IP Right Cessation
- 2012-09-14 US US13/618,231 patent/US20140048499A1/en not_active Abandoned
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150136892A1 (en) * | 2013-11-20 | 2015-05-21 | Min-Che Hung | Cord winding structure for window blind |
US9366076B2 (en) * | 2013-11-20 | 2016-06-14 | Min-Che Hung | Cord winding structure for window blind |
US9297203B2 (en) * | 2014-03-13 | 2016-03-29 | Mei-Chin Hsueh-Cheng | Curtain drawstring structure |
US20170130525A1 (en) * | 2015-11-09 | 2017-05-11 | Li-Ming Cheng | Fixing Assembly for Shading Body |
US9896881B2 (en) * | 2015-11-09 | 2018-02-20 | Li-Ming Cheng | Fixing assembly for a shading body |
US20220195795A1 (en) * | 2020-12-22 | 2022-06-23 | Wen Ying Liang | Scrolling unit for electric blinds |
US20230414027A1 (en) * | 2022-06-23 | 2023-12-28 | Yan Chen | Novel cord retracting-releasing apparatus |
Also Published As
Publication number | Publication date |
---|---|
TWM443062U (en) | 2012-12-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CHING FENG HOME FASHIONS CO. LTD, TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HSU, SHENG YING;NIEN, WU-CHUNG;REEL/FRAME:028984/0178 Effective date: 20120620 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |