Hinge buffer for open-close device

Abstract

The invention provides a hinge buffer of switch device having excellent energy absorption capacity with simple structure of buffer function. The device is composed of: rotation axis driving by the rotation of the rotation parts and rotationally fixed on frame; gear rotationally fixed on the rotation axis and forming internal tooth; transportation device transporting the rotation of the switch device to the gear; planetary gear having tooth meshing to the internal tooth of the gear; rotation regulating device regulating the rotation of the planetary gear to move it in circle trajectory whose centre is near the rotation centre; and absorption device absorbing rotational energy of the gear.

Description

technical field [0001] The present invention relates to a hinge damper in an opening and closing device for safely and smoothly opening and closing an opening and closing member such as a document pressing plate of a copier or a toilet opening and closing member of a toilet. Background technique [0002] The mounting part installed on the device main body of the copier is pivotally connected to the mounting part freely and the supporting part supporting the original pressing plate is inserted between the mounting part and the supporting part to press the original. In the opening and closing device of the original crimping plate composed of a compression coil spring that pushes the connecting plate to the opening direction, a hydraulic buffer is used to prevent the weight of the original crimping plate from overcoming the thrust of the compression coil spring, and the original crimping plate falls quickly, resulting in Clamping the hand, or the position deviation of the manus...

AI Technical Summary

Problems solved by technology

[0005] 2) Because it is a metal product such as die-casting, it is heavy and the volume becomes longer in the axial direction, requiring installation space

[0006] 3) Since the hinge is accommodated in the coil spring, the spring itself becomes larger

In addition, it becomes unstable due to the dependence of the oil viscous resistance on the external temperature

Therefore, when the opening and closing device is continuously opened and closed, there is a disadvantage that the performance cannot be fully exerted.

[0008] 5) If the original crimping plate is forcibly closed, the buffer will be overloaded, the internal oil pressure will rise rapidly, and there is a possibility of damage

[0009] 6) The piston rod of the buffer is weak in terms of eccentric load, so high-precision movement is required, which easily leads to oil leakage and damage to the device

[0010] 7) The surrounding oil and moisture adhere to the piston rod, which may easily cause damage to the package and malfunction

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