| 摘要 |
An improved tufting machine push rod housing gland seal assembly for use with a tufting machine is disclosed. The gland seal assembly of the invention includes an elongate carrier formed by a longitudinal axis, having a first end and a spaced second end, constructed for being received within a gland seal receiving cavity defined within a push rod housing. A concentric throughbore is defined within the carrier about the longitudinal axis. A first continuous annular groove is defined in a side wall of the bore, and an axially spaced second continuous annular groove is also defined in the side wall of the bore. The two grooves together define therebetween a continuous annular bearing surface for supporting and guiding the push rod as it is reciprocated through the gland seal assembly and along the axis, thus minimizing the impact of push rod flexure or oscillation on the gland seal assembly, and the push rod housing. A continuous annular push rod lip seal is seated within the first groove, and a continuous annular push rod wiper seal is seated within the second groove. A continuous annular exterior shoulder is defined along the first end of the carrier, about which a continuous O-ring is passed, such that as the gland seal assembly is placed within the gland seal receiving cavity of the push rod housing and fastened to the push rod housing, the gland seal assembly becomes sealed on an internal shoulder formed as a part of the push rod housing.
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