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Title:
SHED-FORMING MODULE FOR A WEAVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/175204
Kind Code:
A4
Abstract:
Shed-forming module (1) for the selective movement of shed-forming elements using lifting elements, wherein several shed-forming elements, in projection onto a plane perpendicular to their movement direction, are situated next to each other in a first direction and in a second direction perpendicular to the first direction, comprising a drive and transfer mechanism, wherein the drive mechanism (16) does not form part of the transfer mechanism (12, 13), and the lifting elements are coupled to the drive mechanism (16) via a first (12) and a second (13) transfer mechanism such that the movement profile and movement amplitude thereof are adjustable via the drive mechanism (16).

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Inventors:
VANDERJEUGT, Bram (Pannenhuisstraat 45, 8900 Ieper, 8900, BE)
THEOBALD, Matthew (The Elms, Whittonstall-Northumb DH8 9JN, DH8 9JN, GB)
Application Number:
IB2017/052049
Publication Date:
October 12, 2017
Filing Date:
April 10, 2017
Export Citation:
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Assignee:
NV MICHEL VAN DE WIELE (Michel Vandewielestraat 7, 8510 Kortrijk / Marke, 8510, BE)
International Classes:
D03C3/36
Attorney, Agent or Firm:
CHIELENS, Kristof et al. (President Kennedypark 31 C, 8500 Kortrijk, 8500, BE)
Download PDF:
Claims:
1/5

AMENDED CLAIMS

received by the International Bureau

on 29 September 2017 (29.09.2017)

1. Shed-forming module (1) for the selective movement of shed-forming elements using lifting elements, wherein several shed-forming elements, when projected onto a plane perpendicular to their movement direction, are located next to each other in a first direction and in a second direction perpendicular to the first direction, comprising:

• at least two sets of lifting elements movable up and down in antiphase;

• shed-forming elements which move selectively with the at least two sets of lifting elements;

• at least four oscillating levers (4, 5; 6,7) which are provided to move the lifting elements up and down in phase and antiphase according to an adjustable movement amplitude;

• first (12) and second (13) transfer mechanisms connected to each of said two sets of lifting elements,

- which each comprise at least two said oscillating levers (4, 5; 6, 7) located next to each other in the first direction and

- which furthermore each comprise a connecting mechanism (14, 15) which connects the oscillating levers (4, 5; 6, 7) together per transfer mechanism (12, 13), so that these oscillating levers (4, 5; 6, 7) have virtually the same movement amplitude, and

- which each consist of the components which transfer the movement from one of the at least two said oscillating levers to the other,

- wherein the first (12) and second (13) transfer mechanisms are located next to each other in the second direction;

• a drive mechanism (16) connected to the first (12) and second (13) transfer mechanisms,

characterised in that the drive mechanism (16) does not form part of the transfer mechanism (12, 13) and that the lifting elements are coupled via the first (12) and second (13) transfer mechanisms to the drive mechanism (16) such that the movement profile and the movement amplitude of the lifting elements are adjustable via the drive mechanism (16). 2/5

2. Shed-forming module (1) according to Claim 1, characterised in that the drive mechanism (16) comprises at least two adjustment means (17, 18) which are each connected to a different transfer mechanism (12, 13), and which are each provided to adjust the movement amplitude of the associated transfer mechanism independently, and which together determine the movement amplitude of all shed-forming elements such that the movement amplitude of all shed-forming elements in the first direction is the same, and the movement amplitude of all shed-forming elements changes linearly in the second direction.

3. Shed-forming module (1) according to Claim 1 or 2, characterised in that the movement amplitude of each oscillating lever (4, 5; 6, 7) is unambiguously determined by the movement amplitude of the connected transfer mechanism (12, 13).

4. Shed-forming module (1) according to any of the preceding claims, characterised in that the drive mechanism (16) comprises a first and a second driveable and adjustable four-bar mechanism, wherein the first four-bar mechanism is intended to drive an oscillating lever (4, 5) of the first transfer mechanism (12), and the second four-bar mechanism is provided for driving an oscillating lever (6, 7) of the second transfer mechanism (13).

5. Shed-forming module (1) according to Claim 4, characterised in that the drive mechanism (16) comprises a main drive shaft, wherein the first and second four-bar mechanisms are mechanically coupled to this main drive shaft.

6. Shed-forming module (1) according to Claim 4 or 5, characterised in that each four-bar mechanism comprises an adjustment means (17, 18).

7. Shed-forming module (1) according to Claim 6, characterised in that the adjustment means (17, 18) is configured as a bar of the four-bar mechanism with a slot in which another bar (20, 21) of the respective four-bar mechanism is displaceable for adjusting the amplitude, or the adjustment means is configured as a bar of the four-bar mechanism with a number of different coupling points (23) to which another bar (20, 21) of the four-bar mechanism can be coupled for adjusting the amplitude.

8. Shed-forming module (1) according to any of the preceding claims, characterised in that the shed-forming module (1), on two opposing sides of the module (1), comprises two lifting means (2, 3) which are movable up and down in antiphase for moving the lifting elements (26) up and down, and each oscillating lever (4, 5; 6, 7) is connected to these lifting means (2, 3) via two connecting rods (19) which are movable up and down in antiphase.

9. Shed-forming module (1) according to Claim 8, characterised in that each oscillating lever (4, 5, 6, 7) comprises a first (4a, 5a, 6a, 7a) and second (4b, 5b, 6b, 7b) lever arm which are each intended to be connected to the one end of one of the two connecting rods (19).

10. Shed-forming module (1) according to Claim 8 or 9, characterised in that the first transfer mechanism (12) comprises a first (4) and a second (5) oscillating lever, the second transfer mechanism (13) comprises a third (6) and a fourth (7) oscillating lever, that the first (4) and third (6) oscillating levers are provided for moving the lifting means (2, 3) up and down in antiphase on one side of the module (1), the second (5) and fourth (7) oscillating levers are provided for moving the lifting means (2, 3) up and down in antiphase on the other side of the module (1), and that the first four-bar mechanism is provided for driving the first oscillating lever (4) via a first drive rod (20), and the second four-bar mechanism is provided for driving the third oscillating lever (6) via a second drive rod (21).

11. Shed-forming module (1) according to any of Claims 8 to 10, characterised in that the connecting mechanism (14) of the first transfer mechanism (12) comprises a second lever arm (8b) of a fifth oscillating lever (8) and a second lever arm (9b) of a sixth oscillating lever (9) connected respectively to the first and second oscillating lever and which are connected together via a connecting rod (22), and that the connecting mechanism (15) of the second transfer mechanism (13) comprises a second lever arm (10b) of a seventh oscillating lever (10) and a second lever arm of an eighth oscillating lever (11), connected respectively to the third (6) and fourth (7) oscillating lever which are connected together via a connecting rod (22).

12. Shed-forming module (1) according to Claim 11, characterised in that the first four-bar mechanism is formed by the first adjustment means (17), the first drive rod (20) and the first lever arm (8a) of the fifth oscillating lever (8), and that the second four-bar mechanism is formed by the second adjustment means (18), the second drive rod (21) and the first lever arm (10a) of the seventh oscillating lever (10).

13. Shed-forming module (1) according to any of Claims 1 to 7, characterised in that the first and second four-bar mechanisms respectively drive a first (24) and a second (25) oscillatable shaft.

14. Shed-forming module (1) according to Claim 13, characterised in that each oscillatable shaft comprises a number of oscillating levers placed next to each other and that each oscillating lever is connected to the lifting elements via two connecting rods (19) which are movable up and down in antiphase.

15. Shed-forming module (1) according to Claim 13 or 14, characterised in that the connecting mechanism (14, 15) is formed by a part of the oscillatable shaft (24, 25).

16. Jacquard machine provided with a shed-forming module (1) according to any of Claims 1 to 15.

17. Jacquard machine according to Claim 16, characterised in that the jacquard machine is an open-shed jacquard machine with two or more positions.

18. Weaving machine provided with a shed-forming module (1) according to any of Claims 1 to 15. 5/5

19. Weaving machine according to Claim 18, characterised in that the weaving machine comprises ajacquard machine according to Claim 16 or 17.