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公开(公告)号：US20210180287A1
公开(公告)日：2021-06-17
申请号：US17185190
申请日：2021-02-25
Applicant: Clark Equipment Company
Inventor： Branden Schiwal
Abstract: Disclosed embodiments include power machines and related structures of lift arms, implement carriers, follower links, and driver links which improve manufacturability, reduce component failures, and improve power machine design and functionality. In some embodiments, lift arm structures include cast lower lift arm portions. The cast lower lift arm portions include contoured upper ends which are sleeved onto contoured lower ends of upper lift arm portions to control stress points and to reduce stresses on welds. The follower link structures can include follower links which are configured to be positioned at least partially outside of the lift arm structure to improve rear visibility. The driver link structures can be configured to be laterally overlapping with innermost surfaces on the lift cylinder, but configured such that as the lift arm is raised the laterally overlapping portions are moved above the innermost surfaces of the lift cylinder.
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公开(公告)号：US20210138969A1
公开(公告)日：2021-05-13
申请号：US17096722
申请日：2020-11-12
Applicant: CLARK EQUIPMENT COMPANY
Inventor： John Pfaff , Dennis Agnew
Abstract: Power machines and loaders having doors with an integrated display that allows the display of information, such as gauges, user inputs, mapped obstacles, boundaries, etc., that allows the operator of the machine to see the displayed information closer to the line of sight with the work area. The display can show augmented reality information about a worksite.
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公开(公告)号：US10974778B2
公开(公告)日：2021-04-13
申请号：US16044800
申请日：2018-07-25
Applicant: Clark Equipment Company
Inventor： Austin Soik , Anthony Brechting , Daniel Domitrovich , Joseph Fordahl , Andrew Jensen , Patrick Anderson
Abstract: Disclosed are embodiments of a track mounting tool for use with track removal from, and mounting on, a power machine. The tool includes features which aid in the tasks of track removal and/or track installation. In exemplary embodiments, the tool includes track hanger towers which are configurable to carry a track for mounting on, or after removal from, either side of a power machine. The tool includes a track engager mechanism, which is pivotable for use with either side of a power machine or for mounting of a track at a front or rear idler.
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公开(公告)号：US20210087792A1
公开(公告)日：2021-03-25
申请号：US17026387
申请日：2020-09-21
Applicant: Clark Equipment Company
Inventor： Charles Young , Marty Carpenter , Scott Becker , Douglas Kallas , Matthew Kaldor , Eric Zabel , Boston Zachmann
IPC: E02F9/22
Abstract: A power machine can include a hydraulic drive system that includes an infinitely variable hydraulic drive motor. A run-time displacement of the hydraulic motor can be adjusted based on commanded travel speed or based on a output torque. In some case, the run-time displacement can be selected from one of a plurality of displacement ranges, such as a high range and a low range.
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公开(公告)号：US10934681B2
公开(公告)日：2021-03-02
申请号：US15957170
申请日：2018-04-19
Applicant: Clark Equipment Company
Inventor： Branden Schiwal
IPC: E02F3/38 , E02F3/36 , E02F3/42 , E02F3/34 , A01B1/00 , B22D25/02 , B22D25/00 , E02F3/627 , A01B63/24
Abstract: Disclosed embodiments include power machines and related structures of lift arms, implement carriers, follower links, and driver links which improve manufacturability, reduce component failures, and improve power machine design and functionality. In some embodiments, lift arm structures include cast lower lift arm portions. The cast lower lift arm portions include contoured upper ends which are sleeved onto contoured lower ends of upper lift arm portions to control stress points and to reduce stresses on welds. The follower link structures can include follower links which are configured to be positioned at least partially outside of the lift arm structure to improve rear visibility. The driver link structures can be configured to be laterally overlapping with innermost surfaces on the lift cylinder, but configured such that as the lift arm is raised the laterally overlapping portions are moved above the innermost surfaces of the lift cylinder.
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Patent Agency Ranking
公开(公告)号：US20210053628A1
公开(公告)日：2021-02-25
申请号：US17090848
申请日：2020-11-05
Applicant: Clark Equipment Company
Inventor： Benjamin Storhaug
Abstract: Disclosed embodiments include power machine cabs, cab subassemblies, corresponding power machines such as skids steer loaders, and methods of assembling cabs and power machines. Some exemplary disclosed embodiments include features aiding in the manufacture of the cabs for power machines, features which allow the cabs to be configurable for different customer preferences or needs, and features which allow detection of tampering with the cab such that the power machine can be controlled accordingly.
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公开(公告)号：US20210001935A1
公开(公告)日：2021-01-07
申请号：US17029378
申请日：2020-09-23
Applicant: Clark Equipment Company
Inventor： Craig R. Roske , Scott J. LaCoe
IPC: B62D55/14 , B62D51/00 , E02F9/02 , B62D51/02 , B62D51/04 , B62D55/30 , B62D55/06 , B62D55/10 , E02F9/16
Abstract: Track assemblies (242; 300) for power machines (100; 200) include a track frame (243; 302), including a primary portion (304) and a second portion (306) moveable with respect to the primary portion. A plurality of rollers (248; 316) are positioned along the primary portion of the track frame relative to each other and the center of gravity of the power machine to provide an improved capability to compensate for vibration generated as the power machine moves over a support surface. In some aspects, a portion of a tensioning idler (e.g., 310) is positioned within a cylinder defined by one of the plurality of rollers.
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公开(公告)号：US10801386B2
公开(公告)日：2020-10-13
申请号：US16144658
申请日：2018-09-27
Applicant: CLARK EQUIPMENT COMPANY
Inventor： Kyle Farmer , Chinmay Bhatt , Nicholas Harknett
Abstract: A system includes a first diesel engine operable to drive a first device, a first diesel exhaust fluid (“DEF”) tank associated with the first engine and operable to provide DEF to the first diesel engine during operation, a second diesel engine operable to drive a second device, a second DEF tank associated with the second engine and operable to provide DEF to the second diesel engine during operation, and an external DEF tank arranged to contain a quantity of DEF that is coupled to the first DEF tank and the second DEF tank and operable to selectively deliver DEF from the external DEF tank to each of the first DEF tank and the second DEF tank.
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公开(公告)号：US10767344B2
公开(公告)日：2020-09-08
申请号：US16410576
申请日：2019-05-13
Applicant: Clark Equipment Company
Inventor： William E. Haberman , Christopher L. Young , Timothy J. Alger
Abstract: Power machines having hydraulic systems and controllers configured to prohibit, limit, or allow full operation of the hydraulic systems based upon measured temperature of the hydraulic oil in the system are provided. Also included are methods of controlling the hydraulic systems. In the methods implemented by the controllers, determinations are made as to whether the temperature of the hydraulic oil is below a first (and lowest) set point temperature, above a second (and higher) set point temperature, or between the first and second set point temperatures. The controllers then either prohibit hydraulic system operation, allow limited hydraulic system operation, or allow full hydraulic system operation, based upon the measured temperature in comparison to the two or more set point temperatures.
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公开(公告)号：US20200166057A1
公开(公告)日：2020-05-28
申请号：US16697424
申请日：2019-11-27
Applicant: Clark Equipment Company
Inventor： John D. Richards
Abstract: A power machine with an internal combustion engine and an in-line hydrostatic/hydraulic pump package includes a stiffening bracket which mounts a flywheel housing to the engine and is configured to change the natural frequency of the engine/pump package so that the engine firing frequency does not match the natural frequency of the engine/pump package.
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