Pin based method of precision diamond turning to make prismatic mold and sheeting

a diamond turning and prismatic mold technology, applied in the field of pin based method of precision diamond turning to make prismatic molds and sheeting, can solve the problems of cost and time consumption

Inactive Publication Date: 2014-01-30
ORAFOL AMERICAS
View PDF1 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pins must be individually manufactured, which is costly and time consuming.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pin based method of precision diamond turning to make prismatic mold and sheeting
  • Pin based method of precision diamond turning to make prismatic mold and sheeting
  • Pin based method of precision diamond turning to make prismatic mold and sheeting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048]A description of example embodiments follows.

[0049]FIGS. 2-9 illustrate example embodiments for providing mass-producible hexagonal pins that may be used to provide a mold including a plurality of full cube corner corners. The mold may be used to form a retroreflective article with an optimal angle of entrance in the range of 0°-30°.

[0050]FIGS. 2A-2D are of top and side views of a hexagonal pin 201 and a hexagonal pin bundle 205, respectively. Each hexagonal pin includes a hexagonal cross section and a hexagonal aperture. In the illustrated example, the hexagonal pin 201 features a cross sectional height H of 0.010 inches along the vertical or z-axis, and a length L of 1 inch. A reference axis 202 depicted in FIG. 2B is parallel to all six side surfaces of the hexagonal pin, and is also through the center point of the hexagon shown in FIG. 2A.

[0051]The hexagon cross section includes three pairs of parallel sides. One parallel side pair 211A and 211B is positioned in a horizont...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
center angleaaaaaaaaaa
diameteraaaaaaaaaa
entrance angleaaaaaaaaaa
Login to view more

Abstract

A system, and corresponding method for use, for providing a mass-producible retroreflective material, or sheeting, featuring full cube corner pins is presented. The full cube corner shaping may be provided with the use of a diamond turning tool. The diamond turning tool may be used to simultaneously manufacture a number of pins. The pins may be used to form a mold featuring a triangular or full cube corner surface formation.

Description

[0001]This application is a continuation of U.S. patent application Ser. No. 12 / 082,416, filed Apr. 9, 2008, which is hereby incorporated by reference in its entirety.BACKGROUND OF THE INVENTION[0002]Retroreflective materials are used in everyday life and may be seen in road surfaces, road signs, vehicles, and clothing. Retroreflective materials are configured to reflect light, or other forms of radiation, back to an originating source regardless of an angle of incidence.[0003]One common type of retroreflector is provided by a surface of cube corners, or microprisms. Two types or cube corners are typically utilized, a full cube corner and a triangular cube corner. A typical full cube corner has three square facets and a hexagonal aperture.[0004]FIG. 1A illustrates the reflective properties of a full cube corner 101. A typical full cube corner has three square facets 103, 105, and 107. The full cube corner 101 has a hexagonal aperture 109 that is also the effective area of the full c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(United States)
IPC IPC(8): C25D1/10
CPCC25D1/10B23P15/24B29C33/302B29C33/3842B29D11/00605G02B5/124Y10T409/303752
Inventor LU, XIAO JING
Owner ORAFOL AMERICAS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap