FIELD: railway transport; permanent way.
SUBSTANCE: invention relates to construction members of railway. Proposed insulating bushing has base with support flat surface, central hole, central and peripheral stops to prevent turning of bushing. Bushing is manufacture by injection moulding from polymeric material on polyalkylene terephthalate base and is provided with central stop in form of two rectangular projections arranged square to longitudinal axis of bushing symmetrically relative to central hole. Each projection has at least one stiffening rib pointed along diameter of central hole and overlapping soldering line of melt flows of polymeric material formed in bushing at its manufacture.
EFFECT: increased strength and operation reliability of insulating bushings made of thermoplastic for rail fastenings owing to improvement of their design.
4 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| UNDER-RAIL LINING | 2014 |
|
RU2581340C1 |
| SUSPENDED POLYMER INSULATOR | 2012 |
|
RU2550807C2 |
| RAIL FASTENING | 2021 |
|
RU2767112C1 |
| RAIL FASTENING ANCHOR | 2002 |
|
RU2228979C2 |
| SUSPENDED POLYMER INSULATOR | 2014 |
|
RU2581850C1 |
| POLYMERIC COMPOSITION | 1992 |
|
RU2057772C1 |
| ARRANGEMENT FOR MANUFACTURING ARTICLES HAVING LONGITUDINAL RIBS | 0 |
|
SU1335353A1 |
| INTERMEDIATE RAIL FASTENING | 2023 |
|
RU2805596C1 |
| INSULATOR FOR TIGHT SHELL OF CONNECTOR OF END TERMINATION OF ELECTRIC CABLE | 2009 |
|
RU2525297C2 |
| WHEEL ANTISLIP DEVICE | 1996 |
|
RU2092328C1 |
