PIVOTING ASSEMBLY WITH POSITIONING FUNCTION

• US 20120153789A1
• Filed: 05/12/2011
• Published: 06/21/2012
• Est. Priority Date: 12/21/2010
• Status: Active Grant

• Current Assignee: Alpha Networks Incorporated
• Original Assignee: Alpha Networks Incorporated
• Inventors: LIU, Tsung-Cheng
• Granted Patent: US 8,651,437 B2
• Time in Patent Office: Days
• US Class Current: 312/319.2
• CPC Class Codes: F16M 11/10 around a horizontal axis F16M11/12 takes precedence
• CPC Class Codes: F16M 13/00 Other supports for positioning apparatus or articles heads thereof F16M11/02 ; undercarriages thereof F16M11/20 ; adapted to be stuck in the ground A45F3/44 ; sockets or holders for poles or posts E04H12/22; Means for steadying hand-held apparatus or articles supports for measuring instruments G01D11/30; supports for casings of remote control switching devices H01H9/025
• CPC Class Codes: F16M 2200/022 by friction
• CPC Class Codes: F16M 2200/024 by positive interaction, e.g. male-female connections
• CPC Class Codes: Y10T 403/32262 At selected angle
• CPC Class Codes: Y10T 403/608 Pivoted

Abstract

A pivoting assembly with a positioning function includes a base and a casing assembled with the base. The base is provided with curved elastic arms and two fixing supports. Each fixing support has a pivotal hole. One surface of the casing is formed with a curved portion for allowing the curved elastic arm to abut against and two holes for allowing the fixing support to pass through. The other surface of the casing is formed with a protrusion pivotally connected to the pivotal hole. When the curved portion slides on the curved elastic arm, elastic abutment between the curved portion and the curved elastic arm makes the casing to be positioned by friction fit with respect to the base. By this structure, the present invention can be positioned without a positioning pin or bolt. Further, the present invention is simple in structure, easy to assemble and low in production cost.

Claims

1. A pivoting assembly with a positioning function, including:

a base provided with at least one curved elastic arm and two fixing supports respectively located on both sides of the at least one curved elastic arm, each of the fixing supports being provided with a pivotal hole; and

a casing assembled with the base, the casing being formed with a curved portion for allowing the at least one curved elastic arm to abut against, and two protrusions pivotally connected to the pivotal holes respectively;

wherein elastic abutment between the curved portion and the curved elastic arm makes the casing to be positioned by friction fit with respect to the base when the curved portion slides on the curved elastic arm.

2. The pivoting assembly with a positioning function according to claim 1, wherein each of the curved elastic arms has a curved concave surface and two connecting sections located on both ends of the curved concave surface to connect the base, both sides of each curved elastic arm are provided with a groove to increase the degree of elastic deformation of the curved elastic arm.

3. The pivoting assembly with a positioning function according to claim 2, wherein the casing has a first surface adjacent to the base and a second surface opposite to the first surface, the curved portion is formed on the first surface, both sides of the curved portion are provided with two holes for allowing the two fixing supports to be disposed through, the protrusion is formed on the second surface.

4. The pivoting assembly with a positioning function according to claim 3, wherein the curved portion is a semi-circular ridge to correspond to the curved concave surface of the curved elastic arm.

5. The pivoting assembly with a positioning function according to claim 4, wherein each of the protrusions protrudes from the second surface, a distal end of each protrusion is formed with an engaging slope to be engaged with the pivotal hole, the engaging slope is a slope gradually widening away from a free end of the fixing support.

6. The pivoting assembly with a positioning function according to claim 5, wherein the curved elastic arm of the base and the curved portion of the casing are respectively provided with teeth engaged with each other, thereby increasing the friction fit between the base and the casing.

7. The pivoting assembly with a positioning function according to claim 2, wherein the casing has a first surface adjacent to the base and a second surface opposite to the first surface, the curved portion is formed on the first surface, the protrusion is integrally formed on both sides of the curved portion.

8. The pivoting assembly with a positioning function according to claim 7, wherein the curved portion is a semi-circular ridge to correspond to the curved concave surface of the curved elastic arm.

9. The pivoting assembly with a positioning function according to claim 8, wherein a distal end of each protrusion is formed with an engaging slope to be engaged with the pivotal hole, the engaging slope is a slope gradually widening away from a free end of the fixing support.

10. The pivoting assembly with a positioning function according to claim 9, wherein the curved elastic arm of the base and the curved portion of the casing are respectively provided with teeth engaged with each other, thereby increasing the friction fit between the base and the casing.