Counterbalance hinge 1

The hinge ensures that
- The torque generated by the spring reaches its maximum value when the downward gravitational force of the lid causes maximum torque (in closed position).
- The torque generated by the spring reaches its minimum value when the downward gravitational force of the lid causes minimum torque (in vertical position).
- The lid is lifted and lowered effortlessly and hold securely in any position if the spring stiffness is properly calculated.
STEP files of this video:
www.mediafire.com/file/7rmazf...
Inventor files of this video:
www.mediafire.com/file/qbuy7a...

[@EitriBrokkr]

Mr. Thang is a treasure to society

[@aquatus1]

He really is.

[@nish069]

Mr. Thang can you please provide the step file of this assembly.
Thank you.

[@thang010146]

Link to download the STEP files has been added to the video description recently.

[@nish069]

Thank you sir@@thang010146

[@nadeem8111]

Dear Mr. Thang,
I am currently engaged in the design of foldable homes using SolidWorks. However, I am encountering difficulty in conceptualizing the implementation of a motorized lead thread mechanism for opening and closing the hinged foldable side walls. Could you please provide guidance or insights on how to effectively integrate this feature?
Thank you for your assistance.

[@thang010146]

I can't help you because I don't know SolidWorks.
I use Autodesk Inventor.

[@Krzys_D]

Maybe an actuator or screwjack would work?

[@nadeem8111]

Thanks for acknowledging can it be design in Autodesk

[@thang010146]

@Krzys_D
It's possible, if you don't want to use your hands.

[@bigvortex1921]

That bucket will always be open ))))

[@thang010146]

Please read the video description.

[@dnghiav366]

Chào bác! bác có thể lam một video clip về cơ cầu làm kín của nắp tàu ngầm được không?

[@thang010146]

Tôi không biết cơ cấu đó.
Có hình hay video về nó không?

[@dnghiav366]

@@thang010146 à ý cháu muốn hỏi là cửa người để chui ra chui vào tàu ngần. Kết cấu mở ra đơn giản mà làm kín được nước khi tàu lăn sâu xuống.

[@thang010146]

@@dnghiav366 Tôi không biết. Chắc tìm trên Internet sẽ có.