公开(公告)号：US20230358012A1

公开(公告)日：2023-11-09

申请号：US17739542

申请日：2022-05-09

Applicant: Caterpillar Inc.

Inventor： Mark W. Thompson ,  Jeffrey R. Peterson ,  Trent R. Stefek

IPC: E02F3/36

CPC classification number: E02F3/3663 ,  E02F3/3627

Abstract: A hydraulic system for depressurizing a work tool auxiliary circuit of a work machine. The system comprises: a power source; a reservoir of hydraulic fluid, a plurality of hydraulic lines, a pressure source, a control valve, a depressurize line connected to at least one of the plurality of hydraulic lines and the reservoir, the depressurize line includes an electromechanical valve for regulating the flow of hydraulic fluid in the depressurize line; a controller and a coupler switch comprising at least two throws and having three positions where one of the three positions actuates the electromechanical valve to depressurize the work tool auxiliary circuit. The hydraulic system can be provided as a kit to existing work machines for depressurizing the work tool hydraulic auxiliary circuit of a work machine.

公开(公告)号：US20140294497A1

公开(公告)日：2014-10-02

申请号：US13855002

申请日：2013-04-02

Applicant: CATERPILLAR INC.

Inventor： Troy C. Robl ,  Trent R. Stefek

IPC: E02F3/36

CPC classification number: E02F3/3663 ,  E02F3/3622 ,  E02F3/3627 ,  E02F3/364 ,  E02F3/365 ,  Y10T403/7075

Abstract: A quick coupler for holding an implement is disclosed. The quick coupler includes a frame having a first plate and a second plate. The quick coupler includes a locking system adapted to lock the implement in the first plate and the second plate. The locking system includes a securing latch member and a hydraulic actuator is operatively connected to the securing latch member. The securing latch member is configured to move along a guide provided in each of the first plate and the second plate. The locking system further includes a set of grooves provided on at least one of the securing latch member and the guide. The set of grooves are adapted to lock the securing latch member in a latched position.

Abstract translation: 本发明公开了一种用于固定工具的快速连接器。 快速连接器包括具有第一板和第二板的框架。 快速联接器包括适于将工具锁定在第一板和第二板中的锁定系统。 锁定系统包括固定闩锁构件，并且液压致动器可操作地连接到固定闩锁构件。 固定闩锁构件构造成沿着设置在第一板和第二板中的每一个中的引导件移动。 锁定系统还包括设置在固定闩锁构件和引导件中的至少一个上的一组凹槽。 所述一组凹槽适于将固定闩锁构件锁定在锁定位置。

公开(公告)号：US12227916B2

公开(公告)日：2025-02-18

申请号：US17533731

申请日：2021-11-23

Applicant: Caterpillar Inc.

Inventor： Mark W. Thompson ,  Trent R. Stefek

IPC: E02F3/36 ,  F16B2/06

Abstract: A quick coupler and methods of coupling and decoupling a quick coupler and work tool are disclosed. The quick coupler includes a frame, cylinder, primary blocking member, secondary blocking member, biasing member, and controller. The method of coupling includes activating an AUTOMATIC LOCKING state, automatically locking a second tool pin within a hook, a first tool pin entering a notch, and activating a LOCKED state. The method of decoupling includes activating the AUTOMATIC LOCKING state, resting the work tool on a surface, activating an UNLOCKED state, and separating the quick coupler and work tool. Advantageously, the quick coupler can automatically lock the second tool pin without actuation of the cylinder.

公开(公告)号：US20230160172A1

公开(公告)日：2023-05-25

申请号：US17533731

申请日：2021-11-23

Applicant: Caterpillar Inc.

Inventor： Mark W. Thompson ,  Trent R. Stefek

IPC: E02F3/36 ,  F16B2/06 ,  F16B1/00

CPC classification number: E02F3/3622 ,  F16B2/06 ,  F16B1/005 ,  E02F3/3663

Abstract: A quick coupler and methods of coupling and decoupling a quick coupler and work tool are disclosed. The quick coupler includes a frame, cylinder, primary blocking member, secondary blocking member, biasing member, and controller. The method of coupling includes activating an AUTOMATIC LOCKING state, automatically locking a second tool pin within a hook, a first tool pin entering a notch, and activating a LOCKED state. The method of decoupling includes activating the AUTOMATIC LOCKING state, resting the work tool on a surface, activating an UNLOCKED state, and separating the quick coupler and work tool. Advantageously, the quick coupler can automatically lock the second tool pin without actuation of the cylinder.

公开(公告)号：US20170121928A1

公开(公告)日：2017-05-04

申请号：US14926398

申请日：2015-10-29

Applicant: Caterpillar Inc.

Inventor： Troy C. Robl ,  Trent R. Stefek ,  Aaron D. Kovar

IPC: E02F3/36

CPC classification number: E02F3/3604 ,  E02F3/3627 ,  E02F3/3663 ,  E02F3/38

Abstract: An assembly for detachably connecting an implement to a boom of a machine is disclosed. The assembly may include a stick and a coupler. The stick may have a first end portion configured for pivotal connection to the boom. The stick may also have a second end portion narrower than the first end portion. The coupler may be configured for detachably connecting the implement to the second end portion of the stick.