公开(公告)号：US20230242083A1

公开(公告)日：2023-08-03

申请号：US18297988

申请日：2023-04-10

Applicant: SAF-Holland, Inc.

Inventor： William J. Hicks ,  Andrew L. Wallner ,  Tianyu Ling ,  Jeffrey S. Kemppainen

IPC: B60S9/08 ,  F16H3/66 ,  F16H37/04 ,  F16H1/22 ,  F16H25/20 ,  H02K7/116 ,  H02K11/00 ,  H02K11/28

CPC classification number: B60S9/08 ,  F16H3/66 ,  F16H37/04 ,  F16H1/222 ,  F16H25/20 ,  H02K7/116 ,  H02K11/0094 ,  H02K11/28 ,  F16H1/22 ,  F16H2025/2081 ,  F16H2200/0034 ,  F16H2200/201 ,  F16H2025/2065 ,  F16H2025/2087 ,  F16H2025/2093 ,  F16H2025/2084

Abstract: A landing gear assembly includes a leg assembly, a gear assembly configured to telescopingly move a second leg portion with respect to a first leg portion, and a drive assembly including a gear arrangement configured to drive the drive shaft of the gear assembly at a high speed and low torque configuration and at a low speed and high torque configuration, an electric motor configured to drive the gear arrangement, and a controller configured to switch the gear arrangement from the high speed and low torque configuration to the low speed and high torque configuration in response to an increase in current draw by the electric motor as the second leg portion moves from a retracted to an extended position, and configured to maintain the gear arrangement in the high speed and low torque configuration as the second portion moves from the extended position toward the retracted position.

公开(公告)号：US20230322192A1

公开(公告)日：2023-10-12

申请号：US18189596

申请日：2023-03-24

Applicant: SAF-Holland, Inc.

Inventor： Jeffrey S. Kemppainen

IPC: B60S9/04

CPC classification number: B60S9/04

Abstract: A landing gear assembly configured to support a trailer includes a leg assembly including first and second leg members, the first leg member having first and second apertures extending through sidewalls, and a gear assembly including an input shaft extending through one of the apertures and a drive gear fixed to the input gear, an output shaft extending through another of the apertures, where the output gear fixed to the output shaft includes a slot and the input and output shafts telescopingly engage, a first locking pin extending through the output shaft and received within the slot of the output gear thereby fixing the output gear to the output shaft, and a second locking pin extending though the output shaft at a position offset from the first locking pin where the pins cooperate to prevent removal of the output shaft from the apertures.

公开(公告)号：US20230303038A1

公开(公告)日：2023-09-28

申请号：US18189557

申请日：2023-03-24

Applicant: SAF-Holland, Inc.

Inventor： Jeffrey S. Kemppainen

IPC: B60S9/04

CPC classification number: B60S9/04

Abstract: A landing gear assembly configured to support a trailer includes a leg assembly including a first leg member and a second leg member telescopingly received within the first leg member and adjustable between a retracted position and an extended position, a gear assembly operably coupled to the leg assembly and configured to move the first leg member between the retracted and extended positions, wherein the gear assembly includes a first shaft member, and a first bushing member rotatably supporting a first end of the first shaft member within the first leg member, wherein the first bushing member is attached to the first leg member via at least one first mechanical fastener, and wherein the first bushing member comprises a powdered metal.

公开(公告)号：US20240318777A1

公开(公告)日：2024-09-26

申请号：US18189614

申请日：2023-03-24

Applicant: SAF-Holland, Inc.

Inventor： Jeffrey S. Kemppainen

IPC: F16N31/00 ,  B60S9/04 ,  B64C25/18

CPC classification number: F16N31/00 ,  B60S9/04 ,  B64C25/18 ,  F16N2210/08 ,  F16N2210/12

Abstract: A landing gear includes a leg assembly adjustable between a retracted position and an extended position, a gear box including a housing and a gear assembly, where the gear assembly is configured to move the leg assembly between the retracted and extended positions, and a lubrication-saver separate from the housing and including a main body that includes at least one relief that receives a spindle, a drive shaft or a gear of the gear assembly therein, and wherein the main body is configured to remain stationary with respect to the gearbox as the spindle, drive shaft or gear rotates with respect to the housing.

公开(公告)号：US20230303039A1

公开(公告)日：2023-09-28

申请号：US18189576

申请日：2023-03-24

Applicant: SAF-Holland, Inc.

Inventor： Jeffrey S. Kemppainen

IPC: B60S9/04

CPC classification number: B60S9/04

Abstract: A landing gear assembly configured to support a trailer includes a leg assembly including first and second leg members, a gear assembly coupled to the leg assembly and configured to move the first leg member between retracted and extended positions, wherein the gear assembly includes a first shaft member and a first gear where the first shaft member and the first gear are a single, integral piece, first and second bushing members each including a bushing portion having a bushing portion and a closed end and rotatably supporting ends of the first shaft member within the first leg member.