Overview
ISO 10787-1:1994 - Textile machinery and accessories - Heald frames - Part 1 specifies the coordinated dimensions for heald frames where the heald-carrying rod is fixed to the frame stave by rod support. Published in 1994 as the first edition, this part defines dimensional rules, bush positions and construction, and references general tolerance rules to ensure interchangeability of heald-frame components across weaving machinery.
Key Topics
- Scope and purpose
- Defines coordinated dimensions for heald frames with rod-support fastening of the heald-carrying rod.
- Supports consistent mechanical interfaces between heald frames and weaving machines.
- Dimensional tables and figures
- Detailed figures and tables (Figures 1–8, Tables 1–4) specify frame geometry, pitch, working width, and bush locations.
- Distinguishes group guidance and single guidance frame types, and clarifies pitch (t), working width (e), and nominal distance L between heald end loops.
- Bushes and supports
- Specifies positions for bushes located inside and outside upper and lower frame staves, with construction illustrations and dimensions.
- Table 4 lists bush geometries; tolerances for related holes follow ISO 2768-1.
- Normative references and tolerances
- Normative reference: ISO 2768‑1:1989 (general tolerances for linear/angular dimensions).
- Informative bibliography includes related heald and limit-fit standards (e.g., ISO 11677 series, ISO 286‑2).
- Compatibility notes
- Highlights which rod cross-sections are suitable for specific heald end-loop shapes (e.g., recommendations given for C‑shaped and J‑shaped loops in the tables).
Applications
ISO 10787-1 is applied where precise dimensional coordination is required to ensure reliable operation and interchangeability of heald frames:
- Heald-frame manufacturers designing frames and rod-support fittings.
- Weaving machine builders integrating heald frames into looms and harness systems.
- Component suppliers producing bushes, rods, and healds to standardized dimensions.
- Maintenance and production engineers selecting or replacing frames to match machine specifications.
- Procurement teams and purchasers specifying contractual dimensions for compatibility.
Who should use this standard
- Textile machinery designers and mechanical engineers
- Loom manufacturers and OEMs
- Parts manufacturers (heald rods, bushes, frame staves)
- Technical procurement and quality assurance teams in textile production
Related Standards
Keywords: ISO 10787-1:1994, heald frames, textile machinery, heald-carrying rod, rod support, coordinated dimensions, bushes, weaving machine components.