Positioning Device for Hinge Structure
First Claim
1. A positioning device for hinge structure, comprisinga fixed part disposed with a first pivotal portion;
- a rotatable part disposed with a second pivotal portion, which adjoins the first pivotal portion;
a pivotal axle which is inserted through the first and second pivotal portions through its one end to render the rotatable part rotating relative to the fixed part and with respect to the pivotal axle, whose inner section is insertingly connected with at least an elastic part, whose connection segment at its inner end is connected with a nut, and whose other end is disposed with a connection portion;
a cam member whose linking portion at one end adjoins a pivotal portion, is rotatably pivoted to the connection portion, and is disposed with a first contact face axially and second contact face radially, and the distances between the two contact faces and the pivot are different;
consequently, through the rotation of the cam member, the contacts of the first and second contact faces with a pivoting portion is alternated and thus the distance between the contact faces and the pivotal portion is changed, rendering the nut pressing against or relaxing from at least one elastic part, and the axial frictional force generated between the fixed part and the rotatable part is therefore changed so as to achieve positioning or rotation of the fixed part and the rotatable part.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention discloses a positioning device for hinge structure, comprising a fixed part, a rotatable part, a pivotal axle, at least an elastic part, a nut, and a cam member. The pivotal axle is passed through the first pivotal portion of the fixed part and the second pivotal portion of the rotatable part to render the rotatable part rotating relative to the fixed part and with respect to the pivotal axle. Consequently, through the rotation of the cam member, the contacts of the first and second contact faces with a pivoting portion is alternated and thus the distance between the contact faces and the pivotal portion is changed, rendering the nut pressing against or relaxing from at least one elastic part. The axial frictional force generated between the fixed part and the rotatable part is therefore changed so as to achieve positioning or rotation of the fixed part and the rotatable part.
17 Citations
21 Claims
-
1. A positioning device for hinge structure, comprising
a fixed part disposed with a first pivotal portion; -
a rotatable part disposed with a second pivotal portion, which adjoins the first pivotal portion; a pivotal axle which is inserted through the first and second pivotal portions through its one end to render the rotatable part rotating relative to the fixed part and with respect to the pivotal axle, whose inner section is insertingly connected with at least an elastic part, whose connection segment at its inner end is connected with a nut, and whose other end is disposed with a connection portion; a cam member whose linking portion at one end adjoins a pivotal portion, is rotatably pivoted to the connection portion, and is disposed with a first contact face axially and second contact face radially, and the distances between the two contact faces and the pivot are different; consequently, through the rotation of the cam member, the contacts of the first and second contact faces with a pivoting portion is alternated and thus the distance between the contact faces and the pivotal portion is changed, rendering the nut pressing against or relaxing from at least one elastic part, and the axial frictional force generated between the fixed part and the rotatable part is therefore changed so as to achieve positioning or rotation of the fixed part and the rotatable part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A positioning device for hinge structure, comprising
a fixed part disposed with a first pivotal portion; -
a rotatable part disposed with a second pivotal portion, which adjoins the first pivotal portion; a pivotal axle which is inserted through the first and second pivotal portions through its one end to render the rotatable part rotating relative to the fixed part and with respect to the pivotal axle, whose inner section is insertingly connected with at least an elastic part, whose connection segment at its inner end is connected with a nut, and whose other end is disposed with a connection portion; a cam member whose linking portion at one end is disposed with a relay tube between a pivotal portion for the insertion of the pivotal axle, is rotatably pivoted to the connection portion, and is disposed with a first contact face axially and second contact face radially, and the distances between the two contact faces and the pivot are different; consequently, through the rotation of the cam member, the contacts of the first and second contact faces with a pivoting portion is alternated and thus the distance between the contact faces and the pivotal portion is changed, rendering the nut pressing against or relaxing from at least one elastic part, and the axial frictional force generated between the fixed part and the rotatable part is therefore changed so as to achieve positioning or rotation of the fixed part and the rotatable part. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
Specification