EP0533600A1 - Lösbare flexible Webschaftrahmeneckverbindung für Webmaschinen - Google Patents

Lösbare flexible Webschaftrahmeneckverbindung für Webmaschinen Download PDF

Info

Publication number: EP0533600A1
Authority: EP; European Patent Office
Prior art keywords: jaws; profile; hollow profile; clamping; upright
Prior art date: 1991-09-20
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.): Granted

Application number

EP92440103A

Other languages

English (en)

French (fr)

Other versions

EP0533600B1 (de

Inventor

Joseph Scheiwe

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Ets Burckle & Cie Sa

Original Assignee

Ets Burckle & Cie Sa

Priority date (The priority date 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 date listed.)

1991-09-20

Filing date

1992-09-15

Publication date

1993-03-24

1992-09-15 Application filed by Ets Burckle & Cie Sa filed Critical Ets Burckle & Cie Sa

1993-03-24 Publication of EP0533600A1 publication Critical patent/EP0533600A1/de

1995-02-15 Application granted granted Critical

1995-02-15 Publication of EP0533600B1 publication Critical patent/EP0533600B1/de

2012-09-15 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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Images

Classifications

- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C9/00—Healds; Heald frames
- D03C9/06—Heald frames
- D03C9/0666—Connection of frame parts
- D03C9/0675—Corner connections between horizontal rods and side stays

Definitions

the present invention relates to an elastic junction device which can be dismantled in a corner from a heddle frame for a weaving machine, comprising at least two spans provided on an upright of the frame, a clamping mechanism resiliently mounted in a hollow profile of a batten of the frame and provided with two opposite jaws arranged to cooperate with said bearing surfaces, and clamping means arranged to press said jaws against said bearing surfaces so as to fix said mechanism detachably on the upright.
the European patent application published under the number 303 768 describes a device of the type indicated in the preamble, in which a U-shaped part, the ends of which form the jaws between which a protuberance of the upright is blocked, is resiliently mounted in the hollow profile at by means of an intermediate piece of elastic material.
This elastic piece is housed inside the U and is fixed to the batten using two screws or two transverse rivets. The clamping of the two jaws is ensured by a vertical screw which deflects the U-shaped part and which is accessible by a hole made in the short side of the hollow profile.
This device has the advantage of allowing easy disassembly and limiting the transmission of vibrations and bending.
Swiss Patent No. 671,783 describes an elastic junction in which the frame upright has a rigid lateral protuberance surrounded by an elastic spacer, the whole being fitted into the hollow profile of the batten.
a sort of sliding cap is mounted at the end of the protuberance and is pulled against the latter by means of a screw to compress the spacer axially and cause it to swell transversely to block the assembly by friction.
this device is not easily removable, and moreover the production of relatively large protuberances on the uprights is expensive.
the aims defined above are achieved by means of a device of the type indicated in the preamble, characterized in that the clamping mechanism comprises a pair of rigid parts extending longitudinally one above the other in the hollow profile of the batten, said jaws being disposed respectively at a first end of each of said parts, the other ends of said parts forming a pair of clamping heads inside the hollow profile, in that at least one elastomer element is placed under stress between each clamping head and an upper or lower surface of the hollow profile, and in that said rigid parts are connected by a median articulation , so that their clamping heads move away from one another and compress said elastomer element when the jaws are brought closer to each other.
the clamping mechanism comprises a pair of rigid parts extending longitudinally one above the other in the hollow profile of the batten, said jaws being disposed respectively at a first end of each of said parts, the other ends of said parts forming a pair of clamping heads inside the hollow profile, in that at least one elastomer element is placed under
said bearing surfaces are formed by opposite surfaces of a protuberance of the upright and are divergent in the direction of the batten.
Said protuberance may advantageously have two parallel flanges laterally embracing at least one of said rigid parts.
the jaws have a thickness greater than that of the rest of said rigid parts and are located outside the hollow profile, the clamping means being formed by a screw passing through one of the jaws and engaged in the other.
the middle articulation can be formed simply by a profile in an arc of a circle of one edge of one of said rigid parts, engaged in a hollow profile of the opposite edge of the other part.
each of said rigid parts can be fixed by adhesion to the elastomer element and have a concave longitudinal profile near the articulation and a convex longitudinal profile in the region of the clamping head.
the elastomer element is fixed to the batten by means of at least one rivet or a screw passing through said element opposite said concave profile.
the elastomer element is common to the two rigid parts and extends around their respective clamping heads, which it tends to bring closer to one another by its elasticity.
An elastomeric sheet can be inserted between the side faces of the clamping mechanism and the opposite side surfaces of the hollow profile.
a heald frame for a weaving machine comprises two horizontal battens 1 and two uprights 2, the respective ends of which, at the corners of the frame, are assembled by means of a joining device comprising a clamping mechanism. 3.
the batten formed by a hollow profile made of light metal or of composite material, is equipped with a heald rod 4 and suspension and return members 5 each of which is fixed to the batten by means of two screws 6 engaged in a plywood 7 housed in a cavity 8 of the profile.
the upright 2 has a conventional transverse profile in the shape of an L, a T or a U, and has a protruding stop 10 near each heald rod 4. Near each of its ends, opposite the hollow profile 11 of the batten 1, it has a protuberance 12, the upper and lower faces of which form opposite bearing surfaces 13 and 14 which are preferably slightly divergent (angle ⁇ ) in the direction of the batten 1. As shown in FIG. 2, the protrusion 12 also has a vertical slot 15 and a pair of outer edges 16 facing the battens 1.
the upright 2 can be made of an aluminum alloy covered with an appropriate surface treatment or any other suitable material.
the clamping mechanism 3 is permanently mounted on the batten 1, largely inside the hollow profile 11. It comprises two rigid parts 17 and 18, preferably metallic, which are connected by a clamping screw 19 having a head 20 and by a median articulation formed by a semi-cylindrical protuberance 21 from the lower edge of the part 17, resting in a semi-cylindrical hollow 22 from the upper edge of the part 18. These two edges of the parts have between them a small game allowing a slight pivoting of a part compared to the other on the joint.
Each part 17, 18 has a head with a curved longitudinal profile 23, 24 at its inner end, and a concave profile 25, 26 vertical to the joint.
An elastomer element 27 surrounds all of the profiles 23 to 26 of the two parts 17 and 18 inside the batten 1 and is fixed to these profiles by a process such as adhesion.
the element 27 fills the respective intervals between the parts 17, 18 and the upper internal 28 and lower 29 faces of the hollow profile 11 when these parts 17, 18 are introduced under stress between said faces 28 and 29.
a sheet of elastomer 30 covers the two sides of the parts 17, 18 and of the element 27, to ensure wedging between them and the lateral faces of the hollow profile 11.
the other ends of the parts 17, 18 are visible outside of the batten 1, thanks to an L-shaped cutout, 32, of the end of the batten. They form a pair of jaws 33, 34 arranged to be locked by tightening on the protuberance 12 of the upright 2.
the screw 19 passes through the upper jaw 33 and is screwed into a threaded bore of the jaw 34. If the jaw is made of light metal, this bore can advantageously be provided with a steel insert thread.
the jaws have slightly convergent bearing surfaces 35, 36, so as to be applied perfectly to the bearing surfaces 13 and 14 of the upright.
the assembly of the clamping mechanism 3 is fixed permanently in the hollow profile 11 by means of two transverse rivets 37 passing through the elements 27 and 30 approximately vertical to the central articulation.
the parts 17 and 18 can move to a certain extent without excessively stressing the rivets 37.
FIG. 3 shows that the part of the device 3 located in the hollow profile 11 can have a thickness D less than the thickness C of its part located outside, that is to say the jaws 33 and 34 traversed by screw 19. Therefore, it is possible to use a batten 1 having a particularly narrow profile, therefore lighter than with the joining devices according to the prior art. This also results from the fact that the force exerted on the profile by the heads 23 and 24 is well distributed by the elastic element 27. In addition, this allows the lateral flanges 16 of the upright to engage on either side parts 17, 18 so as to prevent rotation of the upright about a vertical axis.
the clamping mechanism 3 does not exert large localized forces on the batten 1, the latter can advantageously be made of a composite material, comprising for example carbon fibers in a matrix of synthetic resin.
the fixing of the device by means of the rivets 37 can be advantageously carried out as shown in FIG. 5, using two elongated plates 40 made of sheet metal applied to the opposite faces of the batten 1 and provided with conical recesses 41 for the rivet heads.
the plates 40 will preferably be made of stainless steel and can be glued before riveting.
the present invention is not limited to the embodiment described above, but it extends to any modification or variant obvious to a person skilled in the art.
the clamping of the jaws 33 and 34 on an element of the upright can be provided differently, for example by means of openings in the upright as provided for in patent EP-B-295 189.
the screw tightening means can be provided directly on the upright, by spacing of two elements taken between the jaws 33 and 34.

Landscapes

Engineering & Computer Science (AREA)
Textile Engineering (AREA)
Looms (AREA)
Mutual Connection Of Rods And Tubes (AREA)

EP19920440103 1991-09-20 1992-09-15 Lösbare flexible Webschaftrahmeneckverbindung für Webmaschinen Expired - Lifetime EP0533600B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR9111789		1991-09-20
FR9111789A FR2681614B1 (fr)	1991-09-20	1991-09-20	Jonction elastique demontable dans un angle d'un cadre de lisses pour machines a tisser.

Publications (2)

Publication Number	Publication Date
EP0533600A1 true EP0533600A1 (de)	1993-03-24
EP0533600B1 EP0533600B1 (de)	1995-02-15

Family

ID=9417271

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19920440103 Expired - Lifetime EP0533600B1 (de)	1991-09-20	1992-09-15	Lösbare flexible Webschaftrahmeneckverbindung für Webmaschinen

Country Status (3)

Country	Link
EP (1)	EP0533600B1 (de)
DE (1)	DE69201423T2 (de)
FR (1)	FR2681614B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1526197A2 (de) *	2003-10-21	2005-04-27	Groz-Beckert KG	Webschaft mit Mittelverbinder
CN103014984A (zh) *	2011-09-20	2013-04-03	格罗兹-贝克特公司	高速安全综框
CN115307866A (zh) *	2022-10-12	2022-11-08	中国航空工业集团公司沈阳空气动力研究所	风洞天平体轴系弹性角在线校准装置及方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19612404A1 (de) *	1996-03-28	1997-10-02	Grob & Co Ag	Eckverbindung für einen Webschaft
AU2003276350A1 (en) *	2002-09-17	2004-04-08	Staubli Faverges	Mounting frame and loom fitted with said mounting frame
FR2844530B1 (fr) *	2002-09-17	2005-04-22	Staubli Sa Ets	Cadres de lisses et metier a tisser equipe d'un tel cadre

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4349052A (en) *	1979-08-27	1982-09-14	Nankai Kogyo Kabushiki Kaisha	Heald frame for looms
EP0303768A1 (de) *	1987-08-17	1989-02-22	Steel Heddle Manufacturing Co., Inc.	Schnell ausrückbare flexible Verbindung für Litzenrahmen von schnellaufenden Webmaschinen
CH671783A5 (fr) *	1986-04-22	1989-09-29	Nankai Kogyo Kk	Cadre de lisse pour metier a tisser.
US5005607A (en) *	1989-05-22	1991-04-09	Nankai Kogyo Kabushiki Kaisha	Heald frame for looms
WO1991012360A1 (de) *	1990-02-14	1991-08-22	Grob + Co. Aktiengesellschaft	Webschaft mit lösbaren eckverbindungen

1991
- 1991-09-20 FR FR9111789A patent/FR2681614B1/fr not_active Expired - Fee Related
1992
- 1992-09-15 DE DE1992601423 patent/DE69201423T2/de not_active Expired - Lifetime
- 1992-09-15 EP EP19920440103 patent/EP0533600B1/de not_active Expired - Lifetime

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4349052A (en) *	1979-08-27	1982-09-14	Nankai Kogyo Kabushiki Kaisha	Heald frame for looms
CH671783A5 (fr) *	1986-04-22	1989-09-29	Nankai Kogyo Kk	Cadre de lisse pour metier a tisser.
EP0303768A1 (de) *	1987-08-17	1989-02-22	Steel Heddle Manufacturing Co., Inc.	Schnell ausrückbare flexible Verbindung für Litzenrahmen von schnellaufenden Webmaschinen
US5005607A (en) *	1989-05-22	1991-04-09	Nankai Kogyo Kabushiki Kaisha	Heald frame for looms
WO1991012360A1 (de) *	1990-02-14	1991-08-22	Grob + Co. Aktiengesellschaft	Webschaft mit lösbaren eckverbindungen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1526197A2 (de) *	2003-10-21	2005-04-27	Groz-Beckert KG	Webschaft mit Mittelverbinder
EP1526197A3 (de) *	2003-10-21	2006-02-08	Groz-Beckert KG	Webschaft mit Mittelverbinder
US7137415B2 (en)	2003-10-21	2006-11-21	Groz-Beckert Kg	Heddle shaft with center connector
CN103014984A (zh) *	2011-09-20	2013-04-03	格罗兹-贝克特公司	高速安全综框
CN103014984B (zh) *	2011-09-20	2016-09-07	格罗兹-贝克特公司	高速安全综框
CN115307866A (zh) *	2022-10-12	2022-11-08	中国航空工业集团公司沈阳空气动力研究所	风洞天平体轴系弹性角在线校准装置及方法
CN115307866B (zh) *	2022-10-12	2022-12-16	中国航空工业集团公司沈阳空气动力研究所	风洞天平体轴系弹性角在线校准装置及方法

Also Published As

Publication number	Publication date
FR2681614A1 (fr)	1993-03-26
DE69201423T2 (de)	1995-10-19
DE69201423D1 (de)	1995-03-23
EP0533600B1 (de)	1995-02-15
FR2681614B1 (fr)	1993-12-03

Legal Events

Date	Code	Title	Description
1993-02-05	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1993-03-24	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): BE CH DE ES FR IT LI
1993-11-24	17P	Request for examination filed	Effective date: 19930917
1994-01-12	17Q	First examination report despatched	Effective date: 19931124
1994-12-30	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1995-02-15	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): BE CH DE ES FR IT LI
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1996-01-08	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
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