公开(公告)号：US20200071906A1

公开(公告)日：2020-03-05

申请号：US16557534

申请日：2019-08-30

Applicant: Clark Equipment Company

Inventor： David Glasser ,  Daniel J. Krieger

IPC: E02F3/38 ,  E02F9/22 ,  E02F3/42 ,  E02F3/43

Abstract: Disclosed embodiments include power machines, such as front-end loaders and utility vehicles, with a lift arm and a bucket leveling system utilizing four-bar linkages which mechanically level an attached implement as the lift arm is raised and lowered.

公开(公告)号：US20200032486A1

公开(公告)日：2020-01-30

申请号：US16522208

申请日：2019-07-25

Applicant: Clark Equipment Company

Inventor： Charles Young

IPC: E02F9/22

Abstract: Disclosed embodiments include power machines, and hydraulic systems for power machines, in which a controller is configured to monitor the power in each of an implement circuit and a drive circuit and to adjust pump flow to manage engine power consumption.

公开(公告)号：US20190338809A1

公开(公告)日：2019-11-07

申请号：US16400545

申请日：2019-05-01

Applicant: Clark Equipment Company

Inventor： Christopher Clark ,  Aman Fatehpuria ,  Jingnan Shi ,  Jessica A. Lupanow ,  David E. Olumese ,  Gabriel L. Rubin ,  Darien J. Joso ,  Kayla Yamada

IPC: F16D1/02 ,  F16D23/12

Abstract: Disclosed embodiments include power machine, control systems for power machines, and methods of controlling a power machine to automatically couple an implement to an implement carrier of the power machine. Sensors are used to identify positions of a power machine and of an implement, such as a bucket, to be coupled to the implement carrier of the power machine. Control methods are implemented to allow the power machine to be automatically controlled to couple the implement to the implement.

公开(公告)号：US10464619B2

公开(公告)日：2019-11-05

申请号：US15425671

申请日：2017-02-06

Applicant: Clark Equipment Company

Inventor： Ronald S. Hansen

IPC: B62D55/06 ,  B60K13/02 ,  B62D1/22 ,  B62D11/02 ,  B62D33/02 ,  B62D33/06 ,  E02F9/02 ,  E02F9/08 ,  E02F9/16 ,  E02F9/20 ,  B62D49/02

Abstract: Utility vehicle power machines with a frame, single left and right side tracks or tractive elements, a cab, a box supported toward the rear of the frame, and a lift arm supported toward the front of the frame. The utility vehicle power machines can have removable covers on a front of the frame, forward of the cab to provide access to various components.

公开(公告)号：US20190276100A1

公开(公告)日：2019-09-12

申请号：US16295689

申请日：2019-03-07

Applicant: Clark Equipment Company

Inventor： Thomas J. Tokach ,  Daniel J. Krieger

IPC: B62D55/088 ,  B62D55/06 ,  B62D55/24

Abstract: Tracked vehicles and drive systems for tracked vehicles including a guard or shield for a drive motor that deflects debris drawn into a space where the drive motor is located. The guard also provides a longer critical path between the outside of a drive motor assembly and an inside of the drive motor assembly.

公开(公告)号：US20190264411A1

公开(公告)日：2019-08-29

申请号：US16282958

申请日：2019-02-22

Applicant: Clark Equipment Company

Inventor： Cody Erhardt ,  Brian Dehnert ,  Patrick Link

IPC: E02D7/10

Abstract: Disclosed embodiments include post driving implements which attach to a power machine such as a loader in order to pick up posts of various sizes and materials and/or to drive the posts into the ground. In some exemplary disclosed embodiments, the post driving implement allows a post to be picked up when positioned inline with a direction of power machine travel and allows the post to rotate under the force of gravity to a second position in which the post is inline with a pounding mechanism for pounding the post into the ground. Catch mechanisms can be included to capture a portion of the implement to maintain the post in the second position until a release action is taken or a release command is given.

公开(公告)号：US10378536B2

公开(公告)日：2019-08-13

申请号：US14303857

申请日：2014-06-13

Applicant: CLARK EQUIPMENT COMPANY

Inventor： Richard Kouzel

IPC: F16K11/07 ,  F04C28/24 ,  F04B49/22 ,  F04B49/08 ,  F04B41/00 ,  F04B39/16

Abstract: A compressor discharge system, operable to output a flow of compressed air to a service line at a system pressure, includes a compressor operable to produce a flow of compressed air at a discharge pressure. The system also includes a filter positioned downstream of the compressor and operable to receive the flow of compressed air at about the discharge pressure and discharge the flow of compressed air at a filter pressure. The system also includes a control assembly including an actuator and a variable sized orifice movable between a first, open position and a second, restricted position, the variable orifice positioned to receive the flow of compressed air at about the filter pressure and to discharge the flow of compressed air at the system pressure. The actuator is operable in response to pressure feedback in the customer service line to move the orifice to the restricted position.

公开(公告)号：US20190169009A1

公开(公告)日：2019-06-06

申请号：US16323040

申请日：2017-08-29

Applicant: Clark Equipment Company

Inventor： Nicolas Gales

IPC: B66F9/22 ,  B66F9/065

Abstract: Power machines and control systems used thereon include a lift cylinder, a tilt cylinder, and a slave cylinder mechanically connected to assist the lift cylinder with raising a boom. With a lift control valve controlled to cause extension of the lift cylinder to raise the boom, pressure from a hydraulic source is provided to the slave cylinder to aid in raising the boom. Resulting increased pressure on a side of the slave cylinder opens load holding valves, allowing hydraulic pressure from the tilt cylinder to be communicated to the slave cylinder such that tilt cylinder pressure due to a heavy load on an implement aids in raising the boom.

公开(公告)号：US10302027B2

公开(公告)日：2019-05-28

申请号：US15476437

申请日：2017-03-31

Applicant: Clark Equipment Company

Inventor： Ronald S. Hansen ,  Christopher L. Young

IPC: E02F3/32 ,  E02F3/34 ,  E02F3/40 ,  E02F9/02 ,  E02F9/16 ,  E02F9/20 ,  E02F9/22 ,  F02D29/04 ,  F02D29/02 ,  F15B11/08 ,  F15B21/08 ,  B62D11/02

Abstract: Power machines, control systems and methods that adjust engine speed based upon actuation of user input controls that control other power machine functions such as travel functions and lift arm functions. By controlling engine speed at least partially in response to the user input devices controlling other machine functions, more optimal engine speeds can be achieved.

公开(公告)号：US20190135091A1

公开(公告)日：2019-05-09

申请号：US16183377

申请日：2018-11-07

Applicant: Clark Equipment Company

Inventor： Cody Erhardt ,  Ronald S. Hansen ,  Jonathan J. Roehrl ,  Brian P. Dehnert ,  David Glasser

IPC: B60J5/02 ,  F16H21/44 ,  B60J10/84 ,  B60J10/86 ,  E05D7/00 ,  E05D15/02 ,  E05D15/58

Abstract: Disclosed are front entry cabs, and power machines with front entry cabs, having a door that is moveable between opened and closed positions. In the opened position, the door is positioned within an operator compartment of the cab above the operator seat and below a top of the cab. A linkage system defines the travel path of the door between closed and opened positions. The linkage system is configured to minimize interference with operator visibility.