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Razor Blade Technology

A technology of blades and razors, which is applied to the field of giving weakened areas to guards between blades, and can solve problems such as difficulties in manufacturing methods for guards between blades

Active Publication Date: 2015-11-25
EVEREADY BATTERY CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then there is a difficult choice in the manufacturing method of the guard between the blades

Method used

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  • Razor Blade Technology
  • Razor Blade Technology
  • Razor Blade Technology

Examples

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Embodiment Construction

[0020] Reference is now made to the drawings and in particular to figure 1 In the context of the present disclosure, the inter-blade guard 10 defines a structure disposed between adjacent cutting edges 12, 14 of respective razor blades 16, 18 mounted in the housing 20 of the razor cartridge. The inter-blade guard comprises a surface 22 adapted to contact the skin surface of a user 24 during normal use of the razor cartridge after the previous cutting edge and before the next cutting edge when the razor cartridge is drawn in the direction of arrow 26 .

[0021] now refer to Figure 2A to Figure 2E , in an exemplary embodiment, the inter-blade guard 10 is partially formed in, for example, a toboggan shape when viewed from the end of the inter-blade guard 10 . The inter-blade guard has an attachment portion 30 and a removable portion 32 . The removable portion is provided to facilitate handling of the inter-blade guard up to and during assembly of the inter-blade guard to its r...

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Abstract

An inter-blade guard of a suitably ductile material for a razor cartridge is provided with an elongated weakened region. The weakened region is provided after the inter-blade guard is attached to a surface of a razor blade. The weakened region is provided by the application of laser energy that forms a groove along a side of the inter-blade guard. The root region of the groove undergoes intergranular carbide precipitation to locally embrittle the intergranular boundary regions in the groove root region of the otherwise ductile material.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Patent Application Serial No. 61 / 430,294, filed January 6, 2011, the contents of which are hereby incorporated by reference in their entirety. technical field [0003] The present disclosure relates generally to manufacturing processes for razor blades and, more particularly, to methods of imparting weakened regions to inter-blade guards of razor blades. Background technique [0004] Many modern safety razors include a disposable razor cartridge adapted to be selectively attached to a reusable handle through a connection structure between the cartridge and the reusable handle. The seat includes a housing having at least one razor blade having a sharpened cutting edge disposed therein. Other modern safety razors include a razor block permanently attached to the handle, the razor block and handle being disposable as a single unit. [0005] In commonly assigned US Pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B26B21/54B26B21/56B26B15/00
CPCB26B21/4068B26B21/4018B26B21/565Y10T29/4981
Inventor 许毅明
Owner EVEREADY BATTERY CO INC