Labor saving device
AssigneesHongfujin Precision Industry (Wuhan) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
InventorFu-Kuo Huang
Life of this patent
Estimating the term…
Abstract
A device to handle and manage a heavy screen includes a supporting module, a connecting module, two first resilient members, and two second resilient members. The connecting module includes a mounting rod provided with a pulling rod at a middle portion, and two pivot rods rotatably installed on one end far away from the mounting rod of the pulling rod. Each first resilient member is connected to an end of the top plate, and each second resilient member is connected to an end of the bottom plate and one end of a pivot rod. The two first resilient members are stretched when screen is pulled down, and each pivot rod rotates relative to the pulling rod to pull the two second resilient members when screen is lifted. The screen is effectively weightless, enabling static positioning of the screen.
Claims19
A labor saving device, comprising:
- a supporting module, comprising:
- a top plate;
- and
- a bottom plate parallel to the top plate, the bottom plate having two stopper columns;
- a connecting module, comprising:
- a mounting rod provided with a pulling rod at a middle portion;
- and
- two pivot rods rotatably installed on one end away from the mounting rod of the pulling rod;
- two first resilient members;
- and
- two second resilient members;
- wherein two ends of each first resilient member are respectively connected to the top plate and the mounting rod to connect the supporting module with the connecting module, two ends of each second resilient member are connected to the bottom plate and the pivot rod;
- the connecting module is pulled vertically downwardly to pull the two first resilient members, the pulling rod pulls the two pivot rods downwardly, the two stopper columns abut against the two pivot rods, and each pivot rod rotates relative to the pulling rod to pull the end of each second resilient member connected to the corresponding pivot rod of the said pair of pivot rods away from the bottom plate, the two first resilient members and the two second resilient members being elastically stretched to stop the connecting module.
A labor saving device, comprising:
- a supporting module, comprising:
- a top plate, each end of the top plate comprising a connecting rod;
- and
- a bottom plate parallel to the top plate, the bottom plate having two stopper columns;
- a connecting module, comprising:
- a mounting rod provided with a pulling rod at a middle portion;
- and
- two pivot rods rotatably installed on one end away from the mounting rod of the pulling rod;
- two first resilient members;
- and
- two second resilient members;
- wherein two ends of each first resilient member are respectively connected to the connecting rods and the mounting rod to connect the supporting module with the connecting module, two ends of each second resilient member are connected to the bottom plate and the pivot rod;
- the connecting module is pulled vertically downwardly to pull the two first resilient members, the pulling rod pulls the two pivot rods downwardly, the two stopper columns abut against the two pivot rods, and each pivot rod rotates relative to the pulling rod to pull the end of each second resilient member connected to the corresponding pivot rod of the said pair of pivot rods away from the bottom plate, the two first resilient members and the two second resilient members are elastically stretched to stop the connecting module.
Dependencies are inferred from the claim text.