Patent US4701057A successfully refreshed from Google Patents.
US4701057A
Expired / Lapsed
US
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Linear motion rolling contact bearing assembly
Assignee: Nippon Thompson Co Ltd
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Filing: 1986-08-06
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Granted: 1987-10-20
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Expires: 2006-08-06
Abstract
Abstract A linear motion rolling contact bearing assembly includes a slider unit having a main body, in which a pair of endless circulating paths for rolling members is formed, and a U-shaped frame, and having a rail extending over a predetermined length and having a U-shaped cross section for slidably receiving therein the slider unit. An end mounting section for mounting to an exterior member outside of the assembly is formed at least at one end of the U-shaped rail and/or the U-shaped frame. Thus, any deformation and/or distortion, which may be produced when mounting the assembly to an apparatus, is prevented from being transmitted to the remaining part of the assembly, thereby maintaining a high dimensional precision and structural integrity.
Inventors
- 👤 Yoshihiro Kashiwabara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:54
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/04; F16C29/06; F16C29/063; B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/40; F16C29/0602; F16C2322/00; F16C2322/39
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
214 words
A linear motion rolling contact bearing assembly, comprising: a rail extending over a predetermined length and including a pair of first guide grooves extending straight in parallel; a slider unit provided with a pair of endless circulating paths, each of which is partly defined by a second guide groove extending straight in an opposed relation to the corresponding one of said pair of first guide grooves, said slider unit including a main body in which said pair of endless circulating paths are defined and a frame fixedly attached to said main body; a plurality of rolling members provided in each of said pair of endless circulating paths, whereby those rolling members located between said first and second guide groove provide a rolling contact between said rail and said slider unit; and whereby at least one of said rail and said frame is made from a thin plate to be generally U-shaped in cross section and includes an end mounting section formed at least at one end thereof as an extension extending over a predetermined length and having a predetermined width for mounting to a member exterior of said assembly, said end mounting section being provided with at least one notch at a proximal end thereof thereby locally narrowing the width at the proximal end.
Claim 2
Dependent Claim
214 words
A linear motion rolling contact bearing assembly, comprising: a rail extending over a predetermined length and including a pair of first guide grooves extending straight in parallel; a slider unit provided with a pair of endless circulating paths, each of which is partly defined by a second guide groove extending straight in an opposed relation to the corresponding one of said pair of first guide grooves, said slider unit including a main body in which said pair of endless circulating paths are defined and a frame fixedly attached to said main body; a plurality of rolling members provided in each of said pair of endless circulating paths, whereby those rolling members located between said first and second guide groove provide a rolling contact between said rail and said slider unit; and whereby at least one of said rail and said frame is made from a thin plate to be generally U-shaped in cross section and includes an end mounting section formed at least at one end thereof as an extension extending over a predetermined length and having a predetermined width for mounting to a member exterior of said assembly, said end mounting section being provided with at least one notch at a proximal end thereof thereby locally narrowing the width at the proximal end.
Claim 3
Dependent Claim
37 words
The assembly of claim 1 wherein said rail is generally U-shaped and thus it includes a bottom wall and a pair of side walls each of which extends upward from the corresponding side of said bottom wall.
Claim 4
Dependent Claim
41 words
The assembly of claim 2 wherein said U-shaped rail is comprised of a thin steel plate and each of said pair of first guide grooves is defined in an inside wall of the corresponding one of said pair of side walls.
Claim 5
Dependent Claim
25 words
The assembly of claim 3 wherein said end mounting section is formed as an extension of said bottom wall at least at one end thereof.
Claim 6
Dependent Claim
18 words
The assembly of claim 4 wherein said end mounting section is provided with at least one mounting hole.
Claim 7
Dependent Claim
29 words
The assembly of claim 3 wherein said main body is comprised of a pair of upper and lower body sections identical in structure and combined in a face-to-face relation.
Claim 8
Dependent Claim
75 words
The assembly of claim 6 wherein said upper and lower body sections are provided with a pair of slots and said frame is generally U-shaped and thus includes a top wall and a pair of side walls depending from respective sides of said top wall, whereby said side walls of said frame are inserted into the respective slots of said upper and lower body sections, thereby holding the upper and lower body sections in position.
Claim 9
Dependent Claim
28 words
The assembly of claim 7 wherein said end mounting section is formed as an extension of said top wall of said frame at least at one end thereof.
Claim 10
Dependent Claim
21 words
The assembly of claim 8 wherein at least one notch is provided at a proximal end of said end mounting section.
Claim 11
Dependent Claim
17 words
The assembly of claim 8 wherein at least one hole is provided in said end mounting section.
Claim 12
Dependent Claim
28 words
The assembly of claim 8 wherein said frame is comprised of a thin steel plate and said upper and lower body sections are comprised of a plastic material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-19 | 1991-04-20 | 1991-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-19 | 1995-04-20 | 1995-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-19 | 1999-04-20 | 1999-10-20 | $7700.00 | Window Closed / Lapsed |