Self-locking structure of split roller bearing cage

• US 7,258,492 B2
• Filed: 07/14/2005
• Issued: 08/21/2007
• Est. Priority Date: 03/14/2005
• Status: Active Grant

• Current Assignee: Suk Tae Yoon
• Original Assignee: Suk Tae Yoon
• Inventors: Yoon, Suk Tae
• Primary Examiner(s): Hannon; Thomas R.
• Application Number:
  US11/180,517
• Publication Number:
  US 20060204159A1
• Time in Patent Office: 768 Days
• Field of Search: 384523-534, 384572-580, 24/24, 24/20.EE, 403/313, 403/344, 403/329
• US Class Current: 384/523
• CPC Class Codes: F16C 19/26 with a single row of rollers
• CPC Class Codes: F16C 2226/74 with snap-fit, e.g. by clips
• CPC Class Codes: F16C 33/4617 Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
• CPC Class Codes: F16C 33/504 with two segments, e.g. two semicircular cage parts

Abstract

A self-locking structure of a split roller bearing cage includes recesses, locker plates and locking projections. The recesses are defined in outer circumferential surfaces of opposite joint ends of two semicircular split roller bearing cage half-parts along horizontally inscribed tangential lines, that meet an outer circumference of the annular split roller bearing cage and intersect perpendicular with a split center axis of the annular split roller bearing cage. Recesses have widths and depths suitable to receive locker plates. The locker plates are horizontally attached to bottoms of the recesses defined in opposite joint ends of one of the cage half-parts. Locking projections are formed at bottoms of other recesses defined in opposite joint ends of the other cage half-parts to be coupled with respective locker plates. The two cage half-parts are aligned and engaged at their joint ends, forming a full circle. The locker plates can be automatically coupled to the locking projections.

Claims

1. A self-locking structure of a split roller bearing cage comprising:

recesses defined in outer circumferential surfaces of opposite joint ends of two semicircular split roller bearing cage half parts along horizontally inscribed tangential lines, that meet an outer circumference of the annular split roller bearing cage and intersect perpendicular with a split center axis of the annular split roller bearing cage;

locker plates horizontally attached to bottoms of the recesses defined in the opposite joint ends of a first cage half part; and

locking projections formed at bottoms of the other recesses defined in the opposite joint ends of a second cage half part, the locking projections being coupled with the respective locker plates,

wherein, as the first and second cage half parts are aligned and engaged at their joint ends with each other to form a full circle, the locker plates can be automatically coupled to the locking projections, respectively.

2. The structure as set forth in claim 1, wherein the recesses defined in the opposite joint ends of the first and second cage half parts have widths and depths suitable to receive the locker plates.

3. The structure as set forth in claim 1, wherein each locker plate, attached to the bottom of an associated one of the recesses defined in the first cage half part, includes:

a guide leading portion having a predetermined inclination;

a locking hole configured to tightly receive the locking projection; and

an elastic trailing portion to allow the locker plate to continuously come into close contact with the bottom of the recess in an elastic manner.

4. The structure as set forth in claim 1, wherein each locking projection, protruding from the bottom of an associated one of the recesses defined in the second cage half part, includes:

an inclined guiding surface provided at a lateral side thereof to effectively guide a guide leading portion of the locker plate toward an upper end of the locking projection; and

a vertical locking edge portion to capture a locking hole of an associated one of the locker plates.

5. The structure as set forth in claim 1, wherein the locker plates, seated on the bottoms of the recesses of the first cage half part, and the locking projections, protruding from the bottoms of the recesses of the second cage half part, are positioned internally relative to the outer circumference of the split roller bearing cage.

6. A self-locking structure of a split roller bearing cage comprising:

two semicircular split roller bearing cage half parts;

recesses defined in outer circumferential surfaces of opposite joint ends of the two semicircular split roller bearing cage half parts along horizontally inscribed tangential lines, that meet an outer circumference of the annular split roller bearing cage and intersect perpendicular with a split center axis of the annular split roller bearing cage;

locker plates horizontally attached to bottoms of the recesses defined in the first opposite joint ends of the cage half parts; and

locking projections formed at bottoms of the recesses defined in the second opposite joint ends of the cage half parts, the locking projections being coupled with the respective locker plates,

wherein, as the two semicircular cage half parts are aligned and engaged at their joint ends with each other to form a full circle, the locker plates can be automatically coupled to the locking projections, respectively.