US4240673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Longitudinally movable antifriction bearing with flexural tongue
Assignee: SKF GmbH
•
Filing: 1979-05-21
•
Granted: 1980-12-23
•
Expires: 1999-05-21
Abstract
Abstract In a longitudinally moveable antifriction bearing having an endless row of rolling elements, with a zone for loaded rolling elements, a return zone for unloaded rolling elements and reversing sections joining the respective loaded zones and return zones, flexurally elastic tongues are provided for directing the rolling elements onto and away from the loaded zone.
Inventors
- 👤 Horst M. Ernst
- 👤 Armin Olschewski
- 👤 Lothar Walter
- 👤 Manfred Brandenstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:18
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/04; F16C29/06; F16C29/0614; F16C29/0616; F16C29/0619; F16C33/00; F16C33/30; F16C33/46; F16C33/50; F16C33/506
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
142 words
In an antifriction bearing for longitudinal movement with respect to a machine element, comprising a guide block having a guide for guiding an endless row of rolling elements, the guide defining a load zone enabling the rolling elements to move between a race on the machine element and a race on the guide block, a return zone for rolling elements not under load, and a pair of end sections having reversing races joining the return zone and load zone at the respective ends thereof; the improvement wherein each said end section comprises a flexurally elastic tongue directed toward the respective ends of the load zone and forming a part of said reversing race, said tongues being mounted adjacent the respective ends of the load zone and positioned to lift rolling elements from said loading zone and direct them in respective reversing race.
Claim 2
Dependent Claim
142 words
In an antifriction bearing for longitudinal movement with respect to a machine element, comprising a guide block having a guide for guiding an endless row of rolling elements, the guide defining a load zone enabling the rolling elements to move between a race on the machine element and a race on the guide block, a return zone for rolling elements not under load, and a pair of end sections having reversing races joining the return zone and load zone at the respective ends thereof; the improvement wherein each said end section comprises a flexurally elastic tongue directed toward the respective ends of the load zone and forming a part of said reversing race, said tongues being mounted adjacent the respective ends of the load zone and positioned to lift rolling elements from said loading zone and direct them in respective reversing race.
Claim 3
Dependent Claim
14 words
The antifriction bearing of claim 1 wherein said tongues are made of sheet steel.
Claim 4
Dependent Claim
27 words
The antifriction bearing of claim 2 wherein each of said end sections is of a plastic material, said sheet steel tongues being secured therein by ultrasonic welding.
Claim 5
Dependent Claim
16 words
The antifriction bearing of claim 1 wherein said tongues are integral with the respective end sections.
Claim 6
Dependent Claim
38 words
The antifriction bearing of claim 1 wherein said tongues extend axially through and beyond the respective end sections, further comprising gasket means held to said end sections by the ends of said tongues extending through said end sections.
Claim 7
Dependent Claim
27 words
The antifriction bearing of claim 5 wherein said portions of said tongues extending axially beyond said end sections are bent to extend around the respective said gaskets.
Claim 8
Dependent Claim
31 words
The antifriction bearing of claim 1 wherein a chamber for holding lubricant is positioned in each said end section on the side of the respective tongue away from the reversing race.
Claim 9
Dependent Claim
30 words
The antifriction bearing of claim 1 wherein a a shock absorbing material is provided in said end sections on the side of the respective tongue away from the reversing race.
Claim 10
Dependent Claim
13 words
The antifriction bearing of claim 8 wherein said shock absorbing material is rubber.
Claim 11
Dependent Claim
32 words
The antifriction bearing of claim 1 wherein said rolling elements are cylindrical rollers, said reversing races are semicircular, and said load zone and return zone are straight and parallel to one another.
Claim 12
Dependent Claim
15 words
The antifriction bearing of claim 1 wherein said tongues are arcuate and extend substantially 90°.
Claim 13
Dependent Claim
22 words
The antifriction bearing of claim 1 wherein said tongues are arcuate and are unsupported adjacent said load zone for a substantial arc.
Claim 14
Dependent Claim
12 words
The antifriction bearing of claim 1 wherein said rolling elements are spherical.
Claim 15
Dependent Claim
24 words
The antifriction bearing of claim 1 wherein said return zone is aligned with the race on said machine element for guiding loading rolling elements.
Claim 16
Dependent Claim
17 words
The antifriction bearing of claim 1 wherein said end sections are removably affixed to said guide block.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |