# US 2019/0168365 A1 · 4-way indent tool > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0168365 A1 - Document ID: US20190168365A1 - Status: Published application - Kind: A1 - Application number: 15/832,084 - Filed: 2017-12-05 - Published: 2019-06-06 - Earliest claimed: 2017-12-05 - Assignees: Te Connectivity Corporation - Applicants: Te Connectivity Corporation - Inventors: Tyler Benjamin Weber; Richard Lloyd Schaeffer - Web page: https://patentgrep.com/patent/US20190168365A1 ## CPC - B25B 27/026: {fluid driven} - H01R 43/0428: {Power-driven hand crimping tools} - H01R 43/0424: {with more than two radially actuated mandrels} - H01R 43/0488: {with crimp height adjusting means} - H01R 43/0585: {for crimping apparatus with more than two radially actuated mandrels} - B25B: TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS ## Abstract A 4-way indent tool includes a indenter actuator cam arm being movable between an unactuated position and an actuated position to actuate four indenters to crimp a terminal. The 4-way indent tool includes a drive assembly movable along the drive screw between a retracted position and an advanced position. The drive assembly has a drive nut on a drive screw and a coupler operably coupled between the drive nut and the indenter actuator cam arm. The coupler moves the indenter actuator cam arm. The coupler has a spring loaded coupling between the drive nut and the indenter actuator cam arm compressed as the coupler is moved between the retracted position and the advanced position. ## Claims ### Claim 1 A 4-way indent tool comprising: a cover having a base and a head, the base holding a motor driven by a power source, the cover holding a drive screw operably coupled to the motor and being rotated by the motor when the motor is operated; an indenter holder at the head, the indenter holder holding four indenters positioned orthogonally around a terminal opening configured to receive a terminal, the indenters being actuated to move relative to the terminal opening to crimp the terminal received in the terminal opening; a indenter actuator cam arm positioned adjacent the indenter holder to operably engage the indenters, the indenter actuator cam arm being movable between an unactuated position and an actuated position, the indenter actuator cam arm having cam surfaces engaging the corresponding indenters to actuate the indenters as the indenter actuator cam arm moves to the actuated position; and a drive assembly movable along the drive screw between a retracted position and an advanced position, the drive assembly having a drive nut threadably coupled to the drive screw and a coupler operably coupled between the drive nut and the indenter actuator cam arm, the coupler moving the indenter actuator cam arm between the unactuated position and the actuated position as the coupler is moved between the retracted and advanced positions, the coupler having a spring loaded coupling between the drive nut and the indenter actuator cam arm compressed as the coupler is moved between the retracted position and the advanced position. ### Claim 2 (depends on 1) The 4-way indent tool of claim 1, wherein the spring loaded coupling includes a spring, a first coupling plate operably coupled to the drive nut and a second coupling plate operably coupled to the indenter actuator cam arm, the second coupling plate being movable relative to the first coupling plate, the spring being compressible between the first coupling plate and the second coupling plate as the coupler is moved between the retracted and advanced positions. ### Claim 3 (depends on 1) The 4-way indent tool of claim 1, wherein the drive assembly further comprises a yoke between the drive nut in the coupler. ### Claim 4 (depends on 3) The 4-way indent tool of claim 3, wherein the coupler is pivotably coupled to the yoke. ### Claim 5 (depends on 3) The 4-way indent tool of claim 3, wherein the spring loaded coupling is between the yoke and the coupler. ### Claim 6 (depends on 1) The 4-way indent tool of claim 1, wherein the spring loaded coupling is between the coupler and the indenter actuator cam arm. ### Claim 7 (depends on 1) The 4-way indent tool of claim 1, wherein the coupler includes frame members surrounding a pocket, the spring loaded coupling being positioned in the pocket, a coupling member of the indenter actuator cam arm extends into the pocket to engage the spring loaded coupling, the coupling member moving in the pocket as the spring loaded coupling is compressed. ### Claim 8 (depends on 1) The 4-way indent tool of claim 1, wherein the spring loaded coupling decouples the drive assembly from the indenter actuator cam arm allowing movement of the drive nut and the coupler without corresponding movement of the indenter actuator cam arm. ### Claim 9 (depends on 8) The 4-way indent tool of claim 8, wherein the indenter actuator cam arm reaches the actuated position and stops moving prior to the drive assembly reaching the advanced position. ### Claim 10 (depends on 1) The 4-way indent tool of claim 1, further comprising a crimp height adjustment mechanism variably positionable relative to the housing, the indenter actuator cam arm bottoming out against the crimp height adjustment mechanism in the advanced position. ### Claim 11 (depends on 10) The 4-way indent tool of claim 10, wherein the crimp height adjustment mechanism includes a first stop surface and a second stop surface, the crimp height adjustment mechanism being movable between a first position and a second position, the indenter actuator cam arm having a locating surface, wherein the locating surface engages the first stop surface when the crimp height adjustment mechanism is in the first position and wherein the locating surface engages the second stop surface when the crimp height adjustment mechanism is in the second position. ### Claim 12 (depends on 10) The 4-way indent tool of claim 10, wherein the crimp height adjustment mechanism includes an eccentric dial having a plurality of stop surfaces at different radial positions from a rotation axis of the eccentric dial. ### Claim 13 (depends on 1) The 4-way indent tool of claim 1, wherein the indenter actuator cam arm includes a cam lever arm coupled to the spring loaded coupling, the drive assembly pulls the cam lever arm downward to rotate the indenter actuator cam arm. ### Claim 14 (depends on 1) The 4-way indent tool of claim 1, wherein the indenter actuator cam arm includes a cam lever arm coupled to the spring loaded coupling, the drive assembly pushes the cam lever arm upward to rotate the indenter actuator cam arm. ### Claim 15 A 4-way indent tool comprising: a cover having a base and a head, the base holding a motor driven by a power source, the cover holding a drive screw operably coupled to the motor and being rotated by the motor when the motor is operated; an indenter holder at the head, the indenter holder holding four indenters positioned orthogonally around a terminal opening configured to receive a terminal, the indenters being actuated to move relative to the terminal opening to crimp the terminal received in the terminal opening; a indenter actuator cam arm positioned adjacent the indenter holder to operably engage the indenters, the indenter actuator cam arm being movable between an unactuated position and an actuated position, the indenter actuator cam arm having cam surfaces engaging the corresponding indenters to actuate the indenters as the indenter actuator cam arm moves to the actuated position; and a drive assembly movable along the drive screw between a retracted position and an advanced position, the drive assembly having a drive nut threadably coupled to the drive screw and a coupler operably coupled between the drive nut and the indenter actuator cam arm, the coupler moving the indenter actuator cam arm between the unactuated position and the actuated position as the coupler is moved between the retracted and advanced positions, the coupler being configured to decouple the cam lever arm from the drive nut when the indenter actuator cam arm is in the actuated position to allow the coupler to continue moving to the advanced position without further moving the indenter actuator cam arm beyond the actuated position. ### Claim 16 (depends on 15) The 4-way indent tool of claim 15, wherein the indenter actuator cam arm reaches the actuated position and stops moving prior to the drive assembly reaching the advanced position. ### Claim 17 (depends on 15) The 4-way indent tool of claim 15, wherein the spring loaded coupling includes a spring, a first coupling plate operably coupled to the drive nut and a second coupling plate operably coupled to the indenter actuator cam arm, the second coupling plate being movable relative to the first coupling plate, the spring being compressible between the first coupling plate and the second coupling plate as the coupler is moved between the retracted position and the advanced position. ### Claim 18 (depends on 15) The 4-way indent tool of claim 15, further comprising a crimp height adjustment mechanism variably positionable relative to the housing, the indenter actuator cam arm bottoming out against the crimp height adjustment mechanism in the advanced position. ### Claim 19 A 4-way indent tool comprising: a cover having a base and a head, the base holding a motor driven by a power source, the cover holding a drive screw operably coupled to the motor and being rotated by the motor when the motor is operated; an indenter holder at the head, the indenter holder holding four indenters positioned orthogonally around a terminal opening configured to receive a terminal, the indenters being actuated to move relative to the terminal opening to crimp the terminal received in the terminal opening; a crimp height adjustment mechanism variably positionable relative to the head; a indenter actuator cam arm positioned adjacent the indenter holder to operably engage the indenters, the indenter actuator cam arm being movable between an unactuated position and an actuated position, the indenter actuator cam arm having cam surfaces engaging the corresponding indenters to actuate the indenters as the indenter actuator cam arm moves to the actuated position, the indenter actuator cam arm bottoming out against the crimp height adjustment mechanism in the actuated position, wherein the actuated position is variable and controlled by the position of the crimp height adjustment mechanism; and a drive assembly movable along the drive screw between a retracted position and an advanced position, the drive assembly having a drive nut threadably coupled to the drive screw and a coupler operably coupled between the drive nut and the indenter actuator cam arm, the coupler moving the indenter actuator cam arm between the unactuated position and the actuated position as the coupler is moved between the retracted and advanced positions, the coupler having a spring loaded coupling between the drive nut and the indenter actuator cam arm compressed after the indenter actuator cam arm bottoms out against the crimp height adjustment mechanism as the coupler continues to move toward the advanced position. ### Claim 20 (depends on 19) The 4-way indent tool of claim 19, wherein the crimp height adjustment mechanism includes a first stop surface and a second stop surface, the crimp height adjustment mechanism being movable between a first position and a second position, the indenter actuator cam arm having a locating surface, wherein the locating surface engages the first stop surface when the crimp height adjustment mechanism is in the first position and wherein the locating surface engages the second stop surface when the crimp height adjustment mechanism is in the second position.