Threaded type fastener
OwnerRolf H. Steinbockinventor
Life of this patent
Estimating the term…
Abstract
A fastener for use where a predetermined holding force of holding position is to be maintained while the fastener is required to exert a holding force less than the full maximum force it is capable of exerting, the fastener having a shaft portion that threadedly fits into a nut, the shaft portion having an angular cut forming a spring like member, with an outer projecting portion biased toward a surface of the nut for causing a resistance to rotation of the fastener relative to the nut, and wherein the nut may take the form of a thrust collar that receives a number of the fasteners for maintaining a bearing on a journal.
Claims10
A thrust collar assembly for securing a bearing to a journal of a shaft, comprising:
- a thrust collar arranged concentric to said journal between an adjacent end of said bearing and an axial portion of said shaft,
- a first and second group of holes formed in said collar, said groups being arranged on different concentric bolt circles,
- a first spacer ring arranged concentric with said shaft between said collar ad said axial portion of said shaft having one of its sides in a force transmitting relation with said axial portion and said collar,
- first group of fasteners received in said first group of holes for threadedly engaging one side of said first spacer ring,
- means for engaging another side of said first spacer ring with said axial portion,
- a second spacer ring arranged between the bearing and an adjacent side of said collar, and
- a second group of fasteners being of the torque jack type each received in a different one of said second group of holes of said collar and arranged to have a force transmitting relation with said second spacer ring and hence said bearing.
A thrust collar assembly for securing a bearing to a journal of a shaft, comprising:
- a thrust collar arranged concentric to said journal between an adjacent end of said bearing and an axial portion of said shaft,
- a group of holes formed in said collar arranged concentric to said shaft on a bolt circle,
- a first spacer ring arranged concentric with said shaft and between said collar and said axial portion of said shaft having one of its sides in a force transmitting relation with said shaft portion and said collar,
- a second spacer ring arranged between the bearing and the adjacent side of said collar, and
- a group of fasteners being of the torque jack type each received in a different one of said group of holes having their inner ends in a force transmitting relation with said second spacer ring and said bearing
A fastener including a shaft portion having threads that pass into and are threadedly engaged by a cooperative nut,
- said nut having an opening arranged to the axis of said shat portion,
- said opening extending between said shaft portion and the outside surface of said nut,
- external spring like means having a first end secured to the outside surface of said nut and a second end constructed to pass into said opening to forcibly engage said shaft portion for causing a resistance to rotation of said shaft portion relative to said nut,
- wherein said spring like means takes the form of a spring bar,
- said first end including a portion extending away from said opening and along said nut,
- said extending portion being arranged to be free to be displaceable away from said nut and dimensioned, including having a length substantially longer than that of said second end, to create a spring lever effect for said second end, and
- means for securing said first end to said nut.
Dependencies are inferred from the claim text.