4-4 Flexible Locator
Bent tube with tension rope providing flexible (soft) registration, mainly for negative registration.
Specifications
| Model | 4-4 |
|---|---|
| Drawing No. | 4-4 |
| Standard | TB/T 2075.4-2024 — Part 4: Non-limit-type positioning devices |
| Installation | Bent tube head clamps the contact wire; tail held by tension rope to a cantilever registration eye |
The 4-4 flexible locator registers the contact wire by a combination of bent tube and tension rope: the tube head grips the wire through the registration clamp, while the tail is held by a tensioned rope anchored to a registration eye on the cantilever. The wire is thus positioned by a soft, compliant arrangement instead of a rigid tube link.
This flexible registration suits negative-registration (pull-off) points, where the wire must be pulled toward the mast side. The structure is simple and the interfaces — registration clamp, registration eye — are standard parts, making installation and adjustment straightforward.
Design Features
- Bent tube plus tension rope gives a compliant registration
- Suited to negative-registration and special layout points
- Standard interfaces — registration clamp, registration eye, tension fittings
- Simple structure with convenient installation and adjustment
The product is manufactured under CRCC railway product certification and an ISO 9001 quality management system, with incoming material inspection, in-process control on critical operations and batch-by-batch final inspection before delivery.
Henan Chuangwit Railway Equipment Co., Ltd. supplies this locator with selection calculations, matched fittings and site technical guidance for traction power projects. A registration arrangement where a bent tube holds the wire at the head and a tensioned rope holds the tail — the wire is positioned by a compliant rope-tube combination rather than a rigid link. Mainly at negative-registration points, where the contact wire must be pulled toward the mast side; also useful where a soft registration suits the OCS design. A 3-4A registration clamp at the wire, and a registration eye plus tension fittings anchoring the rope on the cantilever — all standard TB/T 2075 parts. By adjusting the rope tension and the tube position; the compliance of the rope makes fine setting forgiving.Frequently Asked Questions
What is a flexible (soft) locator?
Where is it used?
What parts complete the assembly?
How is the registration set?
Performance
Operating Conditions
Outdoor service at OCS registration points on mainline, high-speed and station structures, subject to suspension, wind, ice and dynamic pantograph loads as defined by the OCS design.
Mechanical Performance
Rope tension positions the wire compliantly; tube geometry holds the head angle at the registration point.
Applications
Negative Registration
Pulls the wire toward the mast side.
Station Yards
Simple arrangement for dense points.
Standard Assemblies
Uses 3-4A clamps and registration eyes.
Maintenance Access
Rope tension easily re-set.
