Ratchet wrench having a positioning structure

• US 6,752,046 B1
• Filed: 01/03/2003
• Issued: 06/22/2004
• Est. Priority Date: 01/03/2003
• Status: Active Grant

• Current Assignee: Yi Min Lee
• Original Assignee: Yi Min Lee
• Inventors: Lee, Yi Min
• Primary Examiner(s): RACHUBA, MAURINA T
• Application Number:
  US10/335,817
• Time in Patent Office: 536 Days
• Field of Search: 81/60, 81/63, 81/631, 81/632, 81/62, 811/778.5
• US Class Current: 81/60
• CPC Class Codes: B25B 13/461 with concentric driving and driven member
• CPC Class Codes: B25B 23/0035 Connection means between socket or screwdriver bit and tool

Abstract

A ratchet wrench having a positioning structure includes a wrench body, a cover mounted on the driving head of the wrench body, an elastic plate mounted between the driving head and the cover, and a push plate mounted between the driving head and the cover. The push plate is formed with an arcuate portion having an outer side rested on the elastic plate and an inner side extended into the opening of the cover. Thus, by combination of the elastic plate and the push plate, the socket is combined with the driving head integrally without detachment, thereby facilitating the user operating the ratchet wrench and the socket. In addition, the socket is detached from the driving head easily and conveniently.

Claims

1. A ratchet wrench having a positioning structure, comprising:

a wrench body including a driving head;

a cover mounted on the driving head of the wrench body and having a center formed with an opening;

an elastic plate mounted between the driving head of the wrench body and the cover; and

a push plate mounted between the driving head of the wrench body and the cover, the push plate having a first end formed with an arcuate portion, the arcuate portion of the push plate having an outer side rested on the elastic plate and an inner side extended into the opening of the cover.

2. The ratchet wrench having a positioning structure in accordance with claim 1, wherein the cover has a bottom face formed with a strip-shaped insertion groove, and the elastic plate is mounted in the insertion groove of the cover.

3. The ratchet wrench having a positioning structure in accordance with claim 1, wherein the cover has a bottom face formed with an arcuate mounting recess, and the push plate is mounted in the mounting recess of the cover.

4. The ratchet wrench having a positioning structure in accordance with claim 1, wherein the push plate has a second end formed with a push portion protruding outward from the cover.

5. The ratchet wrench having a positioning structure in accordance with claim 1, further comprising a ring-shaped washer mounted between the driving head of the wrench body and the cover.

6. The ratchet wrench having a positioning structure in accordance with claim 1, further comprising a socket, mounted in the ratchet wheel and having a top formed with an annular groove, wherein the arcuate portion of the push plate is pushed by the elastic plate, and the inner side of the arcuate portion of the push plate is inserted into and locked in the annular groove of the socket, thereby combining the socket with the driving head of the wrench body integrally.