Cord adjusters

A cord adjuster comprising a body 31 having a through passage 32 which is divided longitudinally for the accommodation of cord sections capable of being passed therethrough in side-by-side spaced arrangement, and an arresting member 10 supported on the body for displacement between two end positions, said arresting member being provided with clamping areas 21, 22 disposed in the through passage and cooperating with respective associated clamping areas 45, 46 of the body, in order to clamp the cord sections between them in tight clamping engagement in one end position of the arresting member. The passage 32 is at least in part an open-topped channel, a stationary clamping projection 44 is arranged on the bottom of the channel, and the arresting member 10 is a lid member slidingly displaceable on the upper surface of the body and closing the channel, said lid member being provided on the underside thereof with guiding projections 24, 25 for locating and slidingly guiding, said projections engaging beneath corresponding guiding portions 41, 42 of the body, and the clamping areas 21, 22 being formed integrally with the lid member 10 and extending on both sides of the clamping projection 44 while being spaced therefrom.

I claim:

1. A cord adjuster comprising a body having a through passage which is divided longitudinally for the accommodation of cord sections capable of being passed therethrough in side-by-side spaced arrangement and an arresting member supported on the body for displacement between two end positions, said arresting member being provided with clamping areas disposed in the through passage and cooperating with respective associated clamping areas of the body in order to clamp the cord sections between them in tight clamping engagement in one end position of the arresting member, characterised in that the passage is at least in part an open-topped channel, a stationary clamping projection is arranged on the bottom of the channel, and the arresting member is a lid member slidingly displaceable on the upper surface of the body and closing the channel, said lid member being provided on the underside thereof with at least one guiding projection for locating and slidingly guiding said projection engaging beneath a corresponding guiding portion of the body, and the clamping area being formed integrally with the lid member and extending on both sides of the clamping projection while being spaced therefrom, said lid and said body having opposed finger engaging sections thereon for engagement by a thumb and one other finger to effect relative sliding movement of said body and said lid between clamping and non-clamping positions.

2. A cord adjuster according to claim 1, characterised in that the clamping projection is wedge-shaped and its clamping areas comprise clamping edges, and in that the clamping areas of the lid member are divergent in the direction opposite to the direction of divergence of the lateral surfaces of the clamping projection.

3. A cord adjuster according to claim 1 or claim 2, characterised in that the clamping areas of the lid member are provided with corrugations.

4. A cord adjuster according to any of claim 1 or claim 2, characterised in that the clamping areas of the lid member are formed integrally on downwardly extending ribs, and the outer surfaces of the ribs are parallel and are guided by parallel side walls of the passage.

5. A cord adjuster according to claim 4, characterised in that there are two guiding projections, projecting beyond the outer surfaces of the ribs, said projections engaging within respective elgongated recesses in the side walls of the passage, one end of each recess being open towards one end of the body, the other end of said recess defining an end position of the lid member in which the distance between the clamping areas of the clamping projection on the one hand and of the lid member on the other hand is a minimum.

6. A cord adjuster according to claim 5, characterised in that the body is provided with guiding portions at the end thereof opposite the recesses, which portions are formed integrally with the side walls of the channel and extending towards each other, and engaging in recesses in the ribs of the lid member.

7. A cord adjuster according to claim 1, characterised in that the lid member and the body are each provided with a detent on their sides facing each other, said detents limiting the displacement of the parts with respect to each other in the direction towards the position of release.

8. A cord adjuster according to claim 7, characterised in that the detent on the lid member is formed integrally with the lid inner surface in an axially-extending channel-shaped depression, while the detent on the body is formed by a shoulder on the upper surface of the clamping projection.

9. A cord adjuster according to claim 8, characterised in that the detent on the body is provided with an upward sloping ramp area in front of the shoulder, which cooperates with a facing oblique surface of the detent on the lid member.

10. A cord adjuster according to claim 1, characterised in that the body and the lid member finger engaging section comprises corrugated sections on opposing outer surfaces, the corrugated section of the lid member being arranged in curved depression.