Telescopic adjuster

Patent metadata

Field	Value
Publication number	US-10907706-B2
Application number	US-201916286243-A
Country	US
Kind code	B2
Filing date	Feb 26, 2019
Priority date	Apr 26, 2018
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

The telescopic adjuster includes a telescopic rod assembly, a driving unit, and a chain. The telescopic rod assembly includes a fixed tube and a driving tube, where the fixed tube is sleeved over the driving tube or the driving tube is sleeved over the fixed tube, the fixed tube is fixed to a housing, and the driving tube can extend or retract relative to the fixed tube. The driving unit includes a first motor and a first gear, where the first motor is configured to drive the first gear. The chain has one end wound around the first gear and the other end fixed to a top end of the driving tube. When the first motor drives the first gear to rotate, the first gear drives the chain to push or pull the driving tube so that the driving tube extends or retracts relative to the fixed tube.

First claim

What is claimed is:

1. A telescopic adjuster, disposed in a housing, and the telescopic adjuster comprising:
a telescopic rod assembly, comprising a fixed tube and a driving tube, wherein the fixed tube is sleeved over the driving tube or the driving tube is sleeved over the fixed tube, the fixed tube is fixed to the housing, and the driving tube can extend or retract relative to the fixed tube;
a driving unit, comprising a first motor and a first gear, wherein the first motor is configured to drive the first gear to rotate; and
a chain, having one end wound around the first gear and the other end fixed to a top end of the driving tube, wherein when the first motor drives the first gear to rotate, the first gear drives the chain to push or pull the driving tube so that the driving tube extends or retracts relative to the fixed tube, wherein the driving tube further comprises a hook disposed at the top end of the driving tube, and the chain is fixed to the hook.

2. The telescopic adjuster according to claim 1 , wherein a tube diameter of the fixed tube is greater than a tube diameter of the driving tube, so that the fixed tube is sleeved over the driving tube, a top end of the fixed tube has a first limiting portion, a bottom end of the driving tube has a second limiting portion, and when the driving tube extends relative to the fixed tube by a preset length, the first limiting portion abuts against the second portion.

3. The telescopic adjuster according to claim 1 , wherein the first gear is located below the telescopic rod assembly, and the housing has a guide block, wherein the guide block is located next to the first gear, and the chain is driven by the first gear and moves along a guide direction of the guide block.

4. The telescopic adjuster according to claim 1 , further comprising a guide track, wherein the guide track is fixed in the housing and stacked in the telescopic rod assembly, and the guide track is configured to guide a moving direction of the chain entering the telescopic rod assembly.

5. The telescopic adjuster according to claim 1 , wherein the telescopic rod assembly further comprises at least one driven tube, wherein a tube diameter of the fixed tube is less than a tube diameter of the driving tube and a tube diameter of the at least one driven tube, the tube diameter of the driving tube is less than the tube diameter of the at least one driven tube so that the driving tube is sleeved over the fixed tube, the at least one driven tube is movably sleeved over the driving tube, the at least one driven tube is connected to the driving tube, and the driving tube can drive the at least one driven tube to extend or retract relative to the fixed tube.

6. The telescopic adjuster according to claim 5 , wherein a top end of the at least one driven tube has a first limiting portion, a bottom end of the at least one driven tube has a second limiting portion, a bottom end of the driving tube has a third limiting portion, a top end of the housing has a fourth limiting portion, when the driving tube extends relative to the at least one driven tube by a preset length, the third limiting portion abuts against the first limiting portion, so that the driving tube drives the at least one driven tube to extend relative to the fixed tube, and when the at least one driven tube extends relative to the housing by another preset length, the second limiting portion abuts against the fourth limiting portion.

7. The telescopic adjuster according to claim 1 , wherein the housing has a guide block, and the driving unit further comprises a second gear, wherein the second gear is located below the telescopic rod assembly, the second gear is located between the guide block and the first gear, the first motor is configured to drive the second gear to rotate, and the second gear is configured to drive the chain leaving the first gear to pass through the guide block.

8. The telescopic adjuster according to claim 1 , wherein the housing has a guide block, and the driving unit further comprises a second gear and a second motor, wherein the second gear is located below the telescopic rod assembly, the second gear is located between the guide block and the first gear, the second motor is configured to drive the second gear to rotate, and the second gear is configured to drive the chain leaving the first gear to pass through the guide block.

9. The telescopic adjuster according to claim 5 , wherein the fixed tube further comprises a guide track, wherein the guide track is configured to guide a moving direction of the chain entering the fixed tube.

Assignees

• Pegatron Corp

Inventors

• Cai Ci-Hong
• Hung Shih-Wei
• Chuang Wen-Chang

Classifications

• F16H19/0663

  with telescopic means, e.g. for supporting or shielding the reciprocating member · CPC title

• F16H7/06

  with chains · CPC title

• F16H19/0645 Primary

  the flexible push or pull member having guiding means, i.e. the flexible member being supported at least partially by a guide to transmit the reciprocating movement  (the flexible member being a non-buckling chain F16H19/0636) · CPC title

• B66F3/00

  Devices, e.g. jacks, adapted for uninterrupted lifting of loads (mobile jacks of the garage type B66F5/00) · CPC title