US3256928A - Ladder cord for venetian blinds - Google Patents
Ladder cord for venetian blinds Download PDFInfo
- Publication number
- US3256928A US3256928A US350512A US35051264A US3256928A US 3256928 A US3256928 A US 3256928A US 350512 A US350512 A US 350512A US 35051264 A US35051264 A US 35051264A US 3256928 A US3256928 A US 3256928A
- Authority
- US
- United States
- Prior art keywords
- cord
- cords
- longitudinal
- transverse
- interlaced
- 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.)
- Expired - Lifetime
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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
- E06B9/38—Other details
- E06B9/382—Details of ladder-tapes or ladder chains, e.g. buckles for local shortening of tapes
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/10—Open-work fabrics
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/03—Shape features
- D10B2403/031—Narrow fabric of constant width
- D10B2403/0311—Small thickness fabric, e.g. ribbons, tapes or straps
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2503/00—Domestic or personal
- D10B2503/03—Inside roller shades or blinds
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Textile Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Blinds (AREA)
Description
June 21, 1966 E. E. HENSEL LADDER 00121) FOR VENETIAN mamas,
Filed March 9, 1964 FIG. 1
vvvvv FIG.2
INVENTOR Z Hansel )of: EM
MM W
ATTORNEYS United States Patent 3,256,928 LADDER CORD FOR VENETIAN BLlNB Erich Emil Hansel, The Hague, Netherlands, assignor to Hunter Douglas International (Quebec) Ltd., Montreal,
Quebec, Canada, a corporation of Canada Filed Mar. 9, 1964, Ser. No. 350,512 Claims priority, application Netherlands, Mar. 11, 1963,
290,073 2 Claims. (Cl. 160-178) This invention relates to a ladder cord assembly for Venetian blinds, comprising two parallel side cords between which there are provided equally spaced each time two transverse threads or transverse cords for receiving a slat of a Venetian blind thereinbetween.
The ladder cords of this kind known so far present the disadvantage that it is diflicult to mount the slats of the Venetian blind in that prior to the mounting of the slats of the Venetian blind the transverse threads or transverse cords have become entangled. Consequently the mounting of the slats requires much time.
The invention aims at removing this disadvantage, which is attained with the ladder cord according to the invention in that each two transverse threads or transverse cords destined to receive a slat of a Venetian blind are fastened to the side cords at a small distance from each other. In consequence of the fact that the ends of each two transverse threads or transverse cords, between which a slat of the Venetian blind is to be mounted, are fastened to the side cords at a small distance from each other, said transverse threads or transverse cords will always remain free and at a small distance from each other when the slats are mounted.
A preferred embodiment of the ladder cord according to the invention is characterized in that the side cords are braided and the transverse threads or transverse cords are constituted by one single thread or one single cord which is interlaced withthe meshes of one of the side cords located between said transverse threads or transverse cords, said transverse thread or said transverse cord being passed each time at the end of an intermediate space between the transverse threads or transverse cords to the other side and being interlaced with this other side cord over a distance of at least one mesh, whereafter said thread or said cord is passed back to the first-mentioned side cord and is interlaced again with the side cord at a distance of at least one mesh from the outward transverse thread or transverse cord portion. In order to ensure that the other side cord presents the same appearance as the first-mentioned side cord, also a thread or cord may be interlaced therewith. This thread or cord may be a continuously extending thread or cord.
The invention will be further explained below with reference to the accompanying drawings showing by way of example an embodiment of the ladder cord according to the invention.
FIG. 1 shows this ladder cord diagrammatically.
FIG. 2 shows part of said ladder cord on an enlarged scale.
The ladder cord shown in the drawings consists of two braided longitudinally extending parallel side cords 1 and 2. For these cords a yarn consisting of a number of threads, for example three threads, is utilized.
3,256,928 Patented June 21, 1966 ice A thread or cord 3 is each time interlaced with a number of meshes of the side cord 1, whereupon said thread or said cord is passed to the other side cord 2 and is braided with at least one mesh of said side cord 2, whereafter said thread or said cord is passed again to the side cord 1 and is again interlaced with a number of meshes of said side cord 1 before being passed again to the side cord 2. As a consequence of these portions of the thread or cord 3 being passed in one and in the reverse direction the transverse threads or transverse cords 4 and 5 of the ladder cord are formed between which transverse threads or transverse cords a slat of a Venetian blind may be inserted. y
In order to ensure that the side cords 1 and 2 have the same appearance, a thread or cord 6 is interlaced with the side cord 2 in the embodiment shown of the ladder cord.
If all of the threads or cords consist of a material known under the trademark of Trevira the ladder cord can be weather-resistant so that it may be utilized for Venetian blinds mounted at the outside of a building.
It is obvious that the invention is not restricted to the embodiment described above by way of example but that it may be modified in numerous ways without departing from the scope of the invention.
1 claim:
1. A ladder assembly for mounting the slats in a Venetian blind, said assembly comprising at least two parallel spaced longitudinal cords and pairs of transverse cords extending between and connecting said longitudinal cords together, said pairs of transverse cords being longitudinally spaced apart at substantially equal intervals along the length of said longitudinal cords and the transverse cords in each pair being longitudinally spaced apart from each other, said pairs of transverse cords being constituted by a single continuous length of cord material which is interlaced longitudinally along the length of one of said longitudinal cords and at said intervals passes from said one longitudinal cord to the opposite longitudinal cord and is there interlaced along a longitudinal extent thereof equal only to the longitudinal spacing between the transverse cords in each said pair and said continuous material is then passed back to said first longitudinal cord and is interlaced therewith along another longitudinal extent thereof equal to one of said intervals, said continuous length then being passed to said opposite longitudinal cord and back to said one cord to form a second of said pairs of transverse cords.
2. The ladder assembly of claim 1, wherein said opposite longitudinal cord is interlaced continuously along the length thereof by a cord of similar appearance to that of said continuous length of material.
References Cited by the Examiner UNITED STATES PATENTS 2,275,273 3/1942 Taylor .160-178 FOREIGN PATENTS 306,933 7/1955 Switzerland.
HARRISON R. MOSELEY, Primary Examiner. P. M. CAUN, Assistant Examiner.
Claims (1)
1. A LADDER ASSEMBLY FOR MOUNTING THE SLATS IN A VENETIAN BLIND, SAID ASSEMBLY COMPRISING AT LEAST TWO PARALLEL SPACED LONGITUDINAL CORDS AND PAIRS OF TRANSVERSE CORDS EXTENDING BETWEEN AND CONNECTING SAID LONGITUDINAL CORDS TOGETHER, SAID PAIRS OF TRANSVERSE CORDS BEING LONGITUDINALLY SPACED APART AT SUBSTANTIALLY EQUAL INTERVALS ALONG THE LENGTH OF SAID LONGITUDINAL CORDS AND THE TRANSVERSE CORDS IN EACH PAIR BEING LONGITUDINALLY SPACED APART FROM EACH OTHER, SAID PAIRS OF TRANSVERSE CORDS BEING CONSTITUTED BY A SINGLE CONTINUOUS LENGTH OF CORD MATERIAL WHICH IS INTERLACED LONGITUDINALLY ALONG THE LENGTH OF ONE OF SAID LONGITUDINAL CORDS AND AT SAID INTERVALS PASSES FROM SAID ONE LONGITUDINAL CORD TO THE OPPOSITE LONGITUDINAL CORD AND IS THERE INTERLACED ALONG A LONGITUDINAL EXTENT THEREOF EQUAL ONLY TO THE LONGITUDINAL SPACING BETWEEN THE TRANSVERSE CORDS IN EACH SAID PAIR AND SAID CONTINUOUS MATERIAL IS THEN PASSED BACK TO SAID FIRST LONGITUDINAL CORD AND IS INTERLACED THEREWITH ALONG ANOTHER LONGITUDINAL EXTENT THEREOF EQUAL TO ONE OF SAID INTERVALS, SAID CONTINUOUS LENGTH THEN BEING PASSED TO SAID OPPOSITE LONGITUDINAL CORD AND BEACK TO SAID ONE CORD TO FORM A SECOND OF SAID PAIRS OF TRANSVERSE CORDS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL290073 | 1963-03-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3256928A true US3256928A (en) | 1966-06-21 |
Family
ID=19754507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US350512A Expired - Lifetime US3256928A (en) | 1963-03-11 | 1964-03-09 | Ladder cord for venetian blinds |
Country Status (5)
Country | Link |
---|---|
US (1) | US3256928A (en) |
AT (1) | AT267830B (en) |
BE (1) | BE644949A (en) |
DE (2) | DE1509424A1 (en) |
GB (1) | GB1032492A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4945971A (en) * | 1989-01-25 | 1990-08-07 | Ivarsson Sune I | Ladder cords for venetian blinds |
US5613540A (en) * | 1994-08-05 | 1997-03-25 | Verosol Usa Inc. | Window shade cord safety shroud |
US5727613A (en) * | 1996-11-12 | 1998-03-17 | Judkins; Ren | Ladder for venetian type blinds |
US6179035B1 (en) * | 1996-02-08 | 2001-01-30 | Hunter Douglas Inc. | Venetian blind |
US20040103994A1 (en) * | 2002-12-02 | 2004-06-03 | Nien Made Enterprise Co., Ltd. | Blind assembly having fabric blind slats |
US20050016693A1 (en) * | 2003-03-05 | 2005-01-27 | Ming Nien | Method of making a window covering |
US20050199352A1 (en) * | 2004-03-11 | 2005-09-15 | Shih-Ming Lin | Window blind |
US20050199351A1 (en) * | 2004-03-12 | 2005-09-15 | Ming Nien | Window blind having fabric slats |
US8496041B2 (en) * | 2011-11-29 | 2013-07-30 | Nien Made Enterprise Co., Ltd. | Ladder tape for window covering and slat adjusting apparatus using the ladder tape |
US20140367052A1 (en) * | 2013-06-17 | 2014-12-18 | Daekyeong Triple Co., Ltd. | Double roman shade curtain and double roman shade using the same |
US20140367053A1 (en) * | 2013-06-17 | 2014-12-18 | Daekyeong Triple Co., Ltd. | Double roman shade curtain and double roman shade using the same |
US20160053534A1 (en) * | 2014-08-19 | 2016-02-25 | Nien Made Enterprise Co., Ltd. | Window blind and lift control module of covering structure thereof |
US20160237740A1 (en) * | 2015-02-16 | 2016-08-18 | Nien Made Enterprise Co., Ltd. | Ladder tape and method of making the same |
CH712907A1 (en) * | 2016-09-15 | 2018-03-15 | Griesser Holding Ag | Ladder cord for an external venetian blind. |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2275273A (en) * | 1940-09-16 | 1942-03-03 | Russell Mfg Co | Ladder web |
CH306933A (en) * | 1952-11-22 | 1955-05-15 | Ag Walter Schwarzenbach | Ladder belts for slat blinds. |
-
1963
- 1963-05-16 DE DE19631509424 patent/DE1509424A1/en active Pending
- 1963-05-16 DE DEH45001U patent/DE1885670U/en not_active Expired
-
1964
- 1964-03-09 US US350512A patent/US3256928A/en not_active Expired - Lifetime
- 1964-03-10 BE BE644949D patent/BE644949A/xx unknown
- 1964-03-10 AT AT207564A patent/AT267830B/en active
- 1964-03-11 GB GB10374/64A patent/GB1032492A/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2275273A (en) * | 1940-09-16 | 1942-03-03 | Russell Mfg Co | Ladder web |
CH306933A (en) * | 1952-11-22 | 1955-05-15 | Ag Walter Schwarzenbach | Ladder belts for slat blinds. |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4945971A (en) * | 1989-01-25 | 1990-08-07 | Ivarsson Sune I | Ladder cords for venetian blinds |
EP0381641A1 (en) * | 1989-01-25 | 1990-08-08 | Sune Ingemar Ivarsson | Improved ladder cords for venetian blinds |
US5613540A (en) * | 1994-08-05 | 1997-03-25 | Verosol Usa Inc. | Window shade cord safety shroud |
US6179035B1 (en) * | 1996-02-08 | 2001-01-30 | Hunter Douglas Inc. | Venetian blind |
US5727613A (en) * | 1996-11-12 | 1998-03-17 | Judkins; Ren | Ladder for venetian type blinds |
US20040103994A1 (en) * | 2002-12-02 | 2004-06-03 | Nien Made Enterprise Co., Ltd. | Blind assembly having fabric blind slats |
US6854504B2 (en) * | 2002-12-02 | 2005-02-15 | Nien Made Enterprise Co., Ltd. | Blind assembly having fabric blind slats |
US20050016693A1 (en) * | 2003-03-05 | 2005-01-27 | Ming Nien | Method of making a window covering |
US7222656B2 (en) | 2003-03-05 | 2007-05-29 | Nine Made Enterprise Co., Ltd. | Method of making a window covering |
US20050199352A1 (en) * | 2004-03-11 | 2005-09-15 | Shih-Ming Lin | Window blind |
US7055572B2 (en) * | 2004-03-12 | 2006-06-06 | Nien Made Enterprise Co., Ltd. | Window blind having fabric slats |
US20050199351A1 (en) * | 2004-03-12 | 2005-09-15 | Ming Nien | Window blind having fabric slats |
US8496041B2 (en) * | 2011-11-29 | 2013-07-30 | Nien Made Enterprise Co., Ltd. | Ladder tape for window covering and slat adjusting apparatus using the ladder tape |
EP2599947A3 (en) * | 2011-11-29 | 2014-01-08 | Nien Made Enterprise Co., Ltd. | Ladder tape for window covering and slat adjusting apparatus using the ladder tape |
US20140367052A1 (en) * | 2013-06-17 | 2014-12-18 | Daekyeong Triple Co., Ltd. | Double roman shade curtain and double roman shade using the same |
US20140367053A1 (en) * | 2013-06-17 | 2014-12-18 | Daekyeong Triple Co., Ltd. | Double roman shade curtain and double roman shade using the same |
US9016346B2 (en) * | 2013-06-17 | 2015-04-28 | Daekyeong Triple Co., Ltd. | Double roman shade curtain and double roman shade using the same |
US9022090B2 (en) * | 2013-06-17 | 2015-05-05 | Daekyeong Triple Co., Ltd. | Double roman shade curtain and double roman shade using the same |
US20160053534A1 (en) * | 2014-08-19 | 2016-02-25 | Nien Made Enterprise Co., Ltd. | Window blind and lift control module of covering structure thereof |
US20160237740A1 (en) * | 2015-02-16 | 2016-08-18 | Nien Made Enterprise Co., Ltd. | Ladder tape and method of making the same |
CH712907A1 (en) * | 2016-09-15 | 2018-03-15 | Griesser Holding Ag | Ladder cord for an external venetian blind. |
EP3296502A1 (en) * | 2016-09-15 | 2018-03-21 | Griesser Holding AG | Guide cord for venetian blinds |
Also Published As
Publication number | Publication date |
---|---|
GB1032492A (en) | 1966-06-08 |
DE1885670U (en) | 1964-01-09 |
AT267830B (en) | 1969-01-10 |
BE644949A (en) | 1964-09-10 |
DE1509424A1 (en) | 1969-03-13 |
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