# US 12,759,117 B2 · Extended ratchet wrench > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,759,117 B2 - Document ID: US12759117B2 - Status: Granted - Kind: B2 - Application number: 18/796,261 - Filed: 2024-08-06 - Published: 2025-03-13 - Granted: 2026-10-13 - Earliest claimed: 2023-09-07 - Assignees: Mobiletron Electronics Co., Ltd. - Applicants: Mobiletron Electronics Co., Ltd. - Inventors: Ying-Tang Wang - Web page: https://patentgrep.com/patent/US12759117B2 ## CPC - B25B 21/004: {of the ratchet type} - B25B 23/0028: {Angular adjustment means between tool head and handle} - B25F 5/001: {Gearings, speed selectors, clutches or the like specially adapted for rotary tools} - B25B: TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING - B25F: COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR {(machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass B23P23/00 and subgroups)} ## Abstract An extended ratchet wrench includes a body, a tool head, and a fixing ring. The body has a head. The head has a first positioning surface, a first positioning structure, and an outer threaded portion that are concentric. The tool head has a rod body. The rod body has an engaging base and a support portion of a free end of the rod body is provided with a driven head assembly. The engaging base has a second positioning structure and a second positioning surface in contact with the first positioning surface. The first positioning structure matches with the second positioning structure in a convex-concave manner at any one of a plurality of angles with the axis as a rotation center. An inner side of the fixing ring has an inner threaded portion screwed with an outer threaded portion and a hooking surface hooking the engaging base in a second direction. ## Claims ### Claim 1 An extended ratchet wrench, comprising a body, a tool head, and a fixing ring; wherein the body comprises a casing body, a motor, a reducing gear set, and a first coupling member; the casing body has a head and a tail that are disposed in sequence along an axis; two opposite directions along the axis are respectively defined as a first direction and a second direction; the head is located on a side of the tail facing the first direction; the head has a first axial hole; a side of the head facing the first direction has a first positioning surface, a first positioning structure, and an outer threaded portion that are concentric with the first axial hole; the motor, the reducing gear set, and the first coupling member are disposed in the casing body with the axis as a rotation center and are connected in sequence along the first direction; the first coupling member rotatably passes through the first axial hole; wherein the tool head comprises a rod body, a driven head assembly, and a drive shaft; the rod body has an engaging base, a neck tube, and a support portion that are connected in sequence along the first direction; a second axial hole penetrates through the rod body along the axis; the engaging base is adjacently connected to the head of the body; a side of the engaging base facing the second direction has a second positioning surface and a second positioning structure that are concentric with the second axial hole; the second positioning surface is in contact with the first positioning surface; the second positioning structure matches with the first positioning structure in a convex-concave manner at any one of a plurality of angles with the axis as a rotation center; the driven head assembly is mounted on the support portion; the drive shaft passes through the second axial hole; one of two opposite ends of the drive shaft is engaged with the driven head assembly, and the other of the two opposite ends of the drive shaft has a second coupling member; the second coupling member is coupled to the first coupling member; wherein the fixing ring fits around the rod body; an inner side of the fixing ring has a hooking surface and an inner threaded portion; the inner threaded portion is screwed with the outer threaded portion of the body; the hooking surface hooks the engaging base in the second direction. ### Claim 2 (depends on 1) The extended ratchet wrench as claimed in claim 1, wherein a periphery of the casing body has a trigger opening; a trigger member is disposed on the trigger opening; the body further comprises a control circuit; the control circuit is disposed in the casing body and is respectively and electrically connected to the motor and the trigger member; the control circuit is triggered by the trigger member to control an operation of the motor. ### Claim 3 (depends on 2) The extended ratchet wrench as claimed in claim 2, wherein the tail is detachably engaged with a battery module; the battery module is electrically connected to the control circuit. ### Claim 4 (depends on 1) The extended ratchet wrench as claimed in claim 1, wherein the driven head assembly is rotatable around a rotation axis and has a working head; the rotation axis is substantially perpendicular to the axis. ### Claim 5 (depends on 1) The extended ratchet wrench as claimed in claim 1, wherein the head has a base; the first axial hole penetrates through a center of the base along the axis; the first positioning structure comprises at least one pin engaged with a surface of the base; the engaging base comprises a tube portion and a large-diameter portion; the tube portion is closer to the body than the large-diameter portion and the large-diameter portion is farther from the body than the tube portion; the second positioning structure is formed on an end of the tube portion facing the second direction and comprises a plurality of positioning recesses arranged around the axis; the at least one pin is inserted into any one of the plurality of positioning recesses along the first direction. ### Claim 6 (depends on 5) The extended ratchet wrench as claimed in claim 5, wherein the surface of the base facing the first direction is connected to a protruding ring; the protruding ring and the first axial hole are concentric; the first positioning surface is formed on a surface of the protruding ring facing the first direction; an outer diameter of the large-diameter portion is greater than an outer diameter of the tube portion; the second positioning surface is formed between the tube portion and the large-diameter portion; the tube portion is inserted into an inner side of the protruding ring. ### Claim 7 (depends on 6) The extended ratchet wrench as claimed in claim 6, wherein the first positioning structure is formed on the surface of the base located between the first axial hole and the protruding ring; the first positioning structure comprises at least one pin slot disposed on the surface of the base; the at least one pin is inserted into the at least one pin slot; a part of the at least one pin facing the first direction protrudes out of the surface of the base. ### Claim 8 (depends on 7) The extended ratchet wrench as claimed in claim 7, wherein the outer threaded portion is formed on an outer peripheral surface of the protruding ring; an outer peripheral surface of the large-diameter portion has an annular groove; a C-shaped retaining ring fits into the annular groove; the hooking surface of the fixing ring hooks the C-shaped retaining ring along the second direction. ### Claim 9 (depends on 8) The extended ratchet wrench as claimed in claim 8, wherein two crimped surfaces are respectively provided on two opposite sides of an outer peripheral surface of the fixing ring. ### Claim 10 (depends on 6) The extended ratchet wrench as claimed in claim 6, wherein the first coupling member has an insertion hole that is in a non-circular shape; the second coupling member matches with the shape of the insertion hole; the second coupling member fits into the insertion hole along the second direction.