Plastic cage

US2016305482A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2016305482-A1
Application numberUS-201415101664-A
CountryUS
Kind codeA1
Filing dateNov 26, 2014
Priority dateDec 5, 2013
Publication dateOct 20, 2016
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Pillar parts ( 10 ) are connected to the inner peripheral surface ( 5 b ) of a large-diameter rim part ( 5 ) and to the outer peripheral surface ( 7 b ) of a small-diameter rim part ( 7 ). The inner peripheral surface ( 5 b ) of the large-diameter rim part ( 5 ) and the outer peripheral surface ( 7 b ) of the small-diameter rim part ( 7 ) 5 respectively have axial-direction inside portions ( 5 c ), ( 7 c ) overlapping with the pillar parts ( 10 ) in the axial direction and axial-direction outside portions ( 5 d ), ( 7 d ) not overlapping with the pillar parts ( 10 ) in the axial direction. A small-diameter annular member ( 2 ) is internally fitted in the axial-direction outside portion ( 5 d ) of the inner peripheral 10 surface ( 5 b ) of the large-diameter rim part ( 5 ). A large-diameter annular member ( 4 ) is externally fitted in the axial-direction outside portion ( 7 d ) of the outer peripheral surface ( 7 b ) of the small-diameter rim part ( 7 ).

First claim

Opening claim text (preview).

1 . A radial bearing plastic cage injection molded by an axial draw mold, comprising: annular large-diameter and small-diameter rim parts, axially spaced and coaxially arranged; and multiple pillar parts connecting together the large-diameter and small-diameter rim parts in the axial direction and arranged at regular intervals in the circumferential direction, wherein: the pillar parts are connected to the inner peripheral surface of the large-diameter rim part and to the outer peripheral surface of the small-diameter rim part; the inner peripheral surface of the large-diameter rim part and the outer peripheral surface of the small-diameter rim part respectively have an axial-direction inside portion overlapping with the pillar parts in the axial direction and an axial-direction outside portion not overlapping with the pillar parts in the axial direction; a small-diameter annular member is internally fitted in the axial-direction outside portion of the inner peripheral surface of the large-diameter rim part; and a large-diameter annular member is externally fitted on the axial-direction outside portion of the outer peripheral surface of the small-diameter rim part. 2 . A plastic cage injection molded by an axial draw mold, comprising: annular large-diameter and small-diameter rim parts, axially spaced and coaxially arranged; and multiple pillar parts connecting together the large-diameter and small-diameter rim parts in the axial direction and arranged at regular intervals in the circumferential direction, wherein: the pillar parts are connected to the inner peripheral surface of the large-diameter rim part and to the outer peripheral surface of the small-diameter rim part; the inner peripheral surface of the large-diameter rim part has an axial-direction inside portion overlapping with the pillar parts in the axial direction and an axial-direction outside portion not overlapping with the pillar parts in the axial direction; and a small-diameter annular member is internally fitted in the axial-direction outside portion of the inner peripheral surface of the large-diameter rim part. 3 . A radial bearing plastic cage injection molded by an axial draw mold, comprising: annular large-diameter and small-diameter rim parts, axially spaced and coaxially arranged; and multiple pillar parts connecting together the large-diameter and small-diameter rim parts in the axial direction and arranged at regular intervals in the circumferential direction, wherein: the pillar parts are connected to the inner peripheral surface of the large-diameter rim part and to the outer peripheral surface of the small-diameter rim part; the outer peripheral surface of the small-diameter rim part has an axial-direction inside portion overlapping with the pillar parts in the axial direction and an axial-direction outside portion not overlapping with the pillar parts in the axial direction; and a large-diameter annular member is externally fitted on the axial-direction outside portion of the outer peripheral surface of the small-diameter rim part.

Assignees

Inventors

Classifications

  • with hybrid structure, i.e. with parts made of distinct materials · CPC title

  • of the end walls, e.g. interaction with the end faces of the rollers · CPC title

  • with one row or needles · CPC title

  • made from plastic, e.g. injection moulded window cages · CPC title

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Frequently asked questions

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What does patent US2016305482A1 cover?
Pillar parts ( 10 ) are connected to the inner peripheral surface ( 5 b ) of a large-diameter rim part ( 5 ) and to the outer peripheral surface ( 7 b ) of a small-diameter rim part ( 7 ). The inner peripheral surface ( 5 b ) of the large-diameter rim part ( 5 ) and the outer peripheral surface ( 7 b ) of the small-diameter rim part ( 7 ) 5 respectively have axial-direction inside por…
Who is the assignee on this patent?
Nsk Ltd
What technology area does this patent fall under?
Primary CPC classification F16C33/4635. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Thu Oct 20 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).