Socket wrench

• US 20030126957A1
• Filed: 02/11/2002
• Published: 07/10/2003
• Est. Priority Date: 01/04/2002
• Status: Abandoned Application

• Current Assignee: Ander Chen
• Original Assignee: Ander Chen
• Inventors: Huang, Hsiu-Ching
• Application Number:
  US10/073,627
• Publication Number:
  US 20030126957A1
• Time in Patent Office: Days
• US Class Current: 81/60
• CPC Class Codes: B25B 13/463 a pawl engaging an externally toothed wheel
• CPC Class Codes: B25B 15/001 characterised by material or shape of the tool bit
• CPC Class Codes: B25B 23/00 Details of, or accessories for, spanners, wrenches, screwdrivers bolt tensioners B25B29/02

Abstract

A socket wrench includes a spanner and a joint. The spanner includes an elongated body, an annular head, a driving element received in the annular head and a ratchet mechanism arranged between the annular head and the driving element. Thus, a one-way rotation of the driving element can be selectively provided while the spanner is swayed. The driving element defines a hole. The joint includes a middle section, a first terminal section and a second terminal section including a size different from that of the first terminal section. The middle section is used for insertion in the hole, the first terminal section is used for engagement with a socket of a first series while the second terminal section being used for engagement with a socket of a second series.

Claims

1. A socket wrench comprising:

a spanner (20) including an elongated body, an annular head, a driving element (22) received in the annular head and a ratchet mechanism arranged between the annular head and the driving element (22) in order to selectively provide a one-way rotation of the driving element (22) while the spanner (20) is swayed, the driving element (22) defining a hole (23);

a joint (10) includes a middle section (13), a first terminal section (11) and a second terminal section (15) including a size different from that of the first terminal section (11), the middle section (13) being used for insertion in the hole (23), the first terminal section (11) being used for engagement with a socket (30) of a first series while the second terminal section being used for engagement with a socket (40) of a second series.

2. The socket wrench as set forth in claim 1 wherein the hole (23) is shaped as a star.

3. The socket wrench as set forth in claim 2 wherein the middle section (13) is shaped as a hexagon.

4. The socket wrench as set forth in claim 1 including a ring (141) attached to the middle section (13) to ensure engagement of the joint (10) with the spanner (20).

5. The socket wrench as set forth in claim 4 wherein the ring (141) is made of an elastic material.

6. The socket wrench as set forth in claim 4 wherein the middle section (13) defines an annular groove (14) for receiving the elastic ring (141).

7. The socket wrench as set forth in claim 1 wherein the middle section (13) includes a position retainer (17) for ensuring engagement of the joint (10) with the driving element (22).

8. The socket wrench as set forth in claim 7 wherein the position retainer (17) includes:

a recess defined in the middle section (13);

a spring (171) received in the recess defined in the middle section (13) of the joint (10); and

a ball (172) partially received in the recess defined in the middle section (13) and pressed by means of the spring (171).

9. The socket wrench as set forth in claim 1 wherein the first terminal section (11) is shaped as a square.

10. The socket wrench as set forth in claim 1 wherein the first terminal section (11) includes a position retainer (12).

11. The socket wrench as set forth in claim 1 wherein the second terminal section (15) is shaped as a square.

12. The socket wrench as set forth in claim 1 wherein the second terminal section (15) includes a position retainer (16).