Rotation velocity adjusting module, rotating device and rotation velocity adjusting method

Patent metadata

Field	Value
Publication number	US-10520048-B2
Application number	US-201715586282-A
Country	US
Kind code	B2
Filing date	May 4, 2017
Priority date	Dec 23, 2016
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

A rotation velocity adjusting module includes a fixed axle, a rotating component and a rotation velocity adjusting mechanism. The rotating component is pivoted to the fixed axle. The rotation velocity adjusting mechanism includes a driven component, a driving component and a contact component. The driven component is rotatably connected to the rotating component. The driving component and the contact component are disposed on the driven component. When a rotation velocity of the rotating component reaches a threshold value, the driving component drives the driven component to rotate by the change of centrifugal force, so as to switch states of the contact component.

First claim

What is claimed is:

1. A rotation velocity adjusting module, comprising:
a fixed axle;
a rotating component, pivoted to the fixed axle and adapted to rotate with the fixed axle as a rotation axis; and
at least one rotation velocity adjusting mechanism, comprising:
a driven component, rotatably connected to the rotating component and having a first end and a second end;
a driving component, disposed on the first end; and
a contact component, disposed on the second end, wherein when a rotation velocity of the rotating component reaches a threshold value, the driving component drives the driven component to rotate through a change of centrifugal force, so as to switch a status of the contact component,
wherein when the rotation velocity of the rotating component is lower than the threshold value, the driven component is positioned at a first status, and when the rotation velocity of the rotating component is greater than the threshold value, the driving component drives the driven component to rotate to a second status through centrifugal force; and
wherein when the driven component is in the first status, the contact component is completely separated from the fixed axle, and when the driven component is in the second status, the contact component is in complete contact with the fixed axle to reduce the rotation velocity of the rotating component.

2. The rotation velocity adjusting module as claimed in claim 1 , wherein the rotation velocity adjusting mechanism includes an elastic element, the elastic element is connected between the rotating component and the driven component, when the rotation velocity of the rotating component is lower than the threshold value, the driven component is positioned at the first status through an elastic force of the elastic element, and when the rotation velocity of the rotating component is greater than the threshold value, the driving component drives the driven component through centrifugal force to resist the elastic force of the elastic element and rotate to the second status.

3. The rotation velocity adjusting module as claimed in claim 1 , wherein when the rotation velocity of the rotating component along a first rotation direction is greater than the threshold value, the driving component drives the driven component through centrifugal force to rotate to the second status, and when the rotation velocity of the rotating component along a second rotation direction opposite to the first rotation direction is greater than the threshold value, the driving component drives the driven component through centrifugal force to rotate to the second status.

4. The rotation velocity adjusting module as claimed in claim 1 , wherein the driving component and the contact component are respectively located on two opposite sides of a line connecting a rotation center of the driven component and a rotation center of the rotating component.

5. The rotation velocity adjusting module as claimed in claim 1 , wherein the driving component and the contact component are located on a same side of a line connecting a rotation center of the driven component and a rotation center of the rotating component.

6. The rotation velocity adjusting module as claimed in claim 1 , wherein a line connecting a centroid of the driving component and a rotation center of the rotating component is tilted with respect to a line connecting the centroid of the driving component and a rotation center of the driven component.

7. The rotation velocity adjusting module as claimed in claim 1 , wherein the at least one rotation velocity adjusting mechanism is a plurality of rotation velocity adjusting mechanisms, and the rotation velocity adjusting mechanisms surround the fixed axle.

8. The rotation velocity adjusting module as claimed in claim 1 , wherein a distance between the driving component and a rotation center of the driven component is greater than a distance between the contact component and the rotation center of the driven component.

9. A rotating device, comprising:
a rotation velocity adjusting module, comprising:
a fixed axle;
a rotating component, pivoted to the fixed axle and adapted to rotate with the fixed axle as a rotation axis; and
at least one rotation velocity adjusting mechanism, comprising:
a driven component, rotatably connected to the rotating component and having a first end and a second end, wherein when a rotation velocity of the rotating component is less than a threshold value, the driven component is positioned at a first status;
a driving component, disposed on the first end, wherein when the rotation velocity of the rotating component is greater than the threshold value, the driving component drives the driven component to rotate to a second status through centrifugal force; and
a contact component, disposed on the second end, wherein when the driven component is in one of the first status or the second status, the contact component is separated from the fixed axle, and when the driven component is in the other one of the first status or the second status, the contact component is in contact with the fixed axle;

a main body, connected to the fixed axle; and
a wheel body, connected to the rotating component, wherein the wheel body is adapted to rotate, and
wherein when the driven component is in the first status, the contact component is completely separated from the fixed axle, and when the driven component is in the second status, the contact component is in complete contact with the fixed axle to reduce the rotation velocity of the rotating component.

10. The rotating device as claimed in claim 9 , wherein the rotation velocity adjusting mechanism includes an elastic element, the elastic element is connected between the rotating component and the driven component, when the rotation velocity of the rotating component is lower than the threshold value, the driven component is positioned at the first status through an elastic force of the elastic element, and when the rotation velocity of the rotating component is greater than the threshold value, the driving component drives the driven component through centrifugal force to resist the elastic force of the elastic element and rotate to the second status.

11. The rotating device as claimed in claim 9 , wherein when the rotation velocity of the rotating component along a first rotation direction is greater than the threshold value, the driving component drives the driven component through centrifugal force to rotate to the second status, and when the rotation velocity of the rotating component along a second rotation direction opposite to the first rotation direction is greater than the threshold value, the driving component drives the driven component through centrifugal force to rotate to the second status.

12. The rotating device as claimed in claim 9 , wherein the driving component and the contact component are respectively located on two opposite sides of a line connecting a rotation center of the driven component and a rotation center of the rotating component.

13. The rotating device as claimed in claim 9 , wherein the driving component and the contact component are respectively located on a same side of a line connecting a rotation center of the driven component and a rotation center of the rotating component.

14. The rotating device as claimed in claim 9 , wherein a line connecting a centroid of the driving component and a rotation center of the rotating component is tilted with respect to a line connecting the centroid of the driving component and a rotation center of the driven component.

15. The rotating device as claimed in clai

Assignees

• Wistron Corp

Inventors

• Hsu Sheng-Chia

Classifications

• B62L1/005

  constructional features of brake elements, e.g. fastening of brake blocks in their holders · CPC title

• B41J11/24

  Detents, brakes, or couplings for feed rollers or platens · CPC title

• B41F13/02

  Conveying or guiding webs through presses or machines · CPC title

• B62L3/00

  Brake-actuating mechanisms {(for back-pedalling brakes B62L5/00)}; Arrangements thereof · CPC title

• F16D2127/005

  force- or torque-responsive · CPC title