Powdered metal assemblies with fastener inserts

• US 20020110414A1
• Filed: 02/14/2001
• Published: 08/15/2002
• Est. Priority Date: 02/14/2001
• Status: Active Grant

• Current Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Original Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Inventors: Wells, Allan Richard
• Granted Patent: US 6,520,710 B2
• Time in Patent Office: Days
• US Class Current: 403/344
• CPC Class Codes: F01L 1/46 Component parts, details, or accessories, not provided for in preceding subgroups
• CPC Class Codes: F01L 13/00 Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
• CPC Class Codes: F16B 2200/30 Dovetail-like connections
• CPC Class Codes: F16B 2200/509 clamped
• CPC Class Codes: Y10T 403/7062 Clamped members

Abstract

An embodiment of a component assembly for use in a mechanism includes a first member having a pair of spaced flanges with fastener receiving openings through the flanges. A second member is a hardened powdered metal part including spaced seats engaging the flanges and slots in the seats connecting with enlarged recesses. The slots and recesses open through sides of the second member. Inserts extending into the recesses through the opening have fastener engaging openings aligned with the fastener receiving openings in the flanges of the first member. Fasteners extend through the flanges and the slots to the insert openings, fixing the flanges of the first member to the seats of the second member. Exemplary assemblies are illustrated. The assemblies provide hardened wearing surfaces made from powdered metal with manufacture simplified by the fastener inserts received in openings formed parallel to the other major surfaces of the powdered metal components.

Claims

1. A component assembly for use in a mechanism, the assembly comprising:

a first member including a flange with a fastener receiving opening extending through the flange;

a second member comprised of a sintered and hardened powdered metal part material, the second member a seat engaging the flange, a slot in the seat and connecting with an recess spaced from the seat, the slot and recess opening extending through a side of the second member adjacent the seat;

an insert extending into the recess through the opening of the second member, the insert having a fastener engaging opening in one side and aligned with the fastener receiving opening in the flange of the first member; and

a fastener extending through the flange and the slot and engaging the insert opening, thereby fixing the flange of the first member to the seat of the second member.

2. A component assembly as in claim 1 wherein the recess and the slot extend through the second member

3. A component assembly as in claim 1 wherein the second member includes at least one hardened surface for wearing engagement with a cooperating component.

4. A component assembly as in claim 1 including at least one lip beside the slot and holding the insert within the recess

5. A component assembly as in claim 2 wherein the insert includes a head at one end and engaging the second member at one end of the recess.

6. A component assembly as in claim 1 wherein the fastener is threaded and the fastener engaging opening in the insert is a threaded opening

7. A component assembly as in claim 1 wherein the assembly includes an annular mounting portion for mounting the assembly for relative rotational motion on a shaft.

8. A component assembly as in claim 7 wherein the first and second members each comprise semi-circular parts of the annular mounting portion, the first member having a second flange and the second member having a second seat, slot and recess receiving a second insert with a second fastener securing the second flange to the second seat, the flanges being at opposite ends of the semi-circular first member and the seats, slots, recesses and inserts being at opposite ends of the semi-circular second member and joined to the flanges by the fasteners.

9. A component assembly as in claim 8 wherein the second member defines a cam surface of an oscillating cam.

10. A component assembly as in claim 8 wherein the second member defines a wearing surface of an actuating lever.

11. A method for manufacturing a component assembly for use in a mechanism, the method comprising the steps of:

producing a first member and opening therein;

producing a second member comprised of a hardened powered metal material, and having a recess therein;

producing a fastener for fixing the second member to the first member, the fastener having a first and a second end;

connecting the first end of the fastener to the first member and connecting the second end of the fastener to the second member; and

tightening the fastener.