C-Shaped Retainer for Shaving Razor Blade Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional shaving razor mechanisms face inefficiencies in manufacturing due to clip buckling and improper installation, leading to unstable blade exposure and increased production costs.
Innovation Solution
A retainer design with a 'C' shape, featuring protrusions, recesses, and surface patterns on the inner and outer surfaces to securely hold blades in place, ensuring consistent blade exposure and simplifying the installation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional clip retaining mechanisms are used to secure blades in the housing, then the blades can be retained in position, but the clips may buckle during manufacturing due to applied force, resulting in unstable blade exposure and requiring additional labor for proper installation
Solution Approach 1:
The retainer is pre-formed with a C-shaped configuration that includes built-in flexibility features (such as bends or resilient portions) during manufacturing, allowing it to be pre-positioned in the housing before blade installation. This preliminary configuration ensures the retainer maintains its shape and provides consistent blade exposure without requiring additional adjustment during assembly, thereby resolving the contradiction between reliability and ease of manufacture.
2Reliability
If clips are used to wrap around the front and rear ends of the razor housing to secure blades, then the blades are retained within the housing, but the clips may fail to be properly installed during manufacturing, requiring additional attention and labor
Solution Approach 1:
The C-shaped retainer is designed with self-aligning features where the open end of the C-shape naturally orients itself during installation, and the resilient portions automatically engage with corresponding features in the housing. This self-service mechanism eliminates the need for precise manual positioning or additional adjustment steps, allowing workers to install the retainer quickly and correctly without requiring specialized attention or training, thus resolving the contradiction between reliability and ease of operation.
3Reliability
If conventional securing mechanisms with multiple clips and apertures are used, then blades can be secured to the housing, but the manufacturing process becomes inefficient with production delays and increased production costs
Solution Approach 1:
The invention consolidates multiple separate clip components into a single integrated C-shaped retainer structure. This merged design maintains the blade-securing function of the original multiple clips while reducing the number of parts to be manufactured and assembled. The single retainer can be produced using more efficient manufacturing processes and installed as one piece, eliminating the need to handle, position, and secure multiple separate clips, thereby significantly improving productivity without compromising blade securing reliability.
Data Source
Figure 1A
Figure 1B~1C
Figure 1D
AI summary
The retainer (200) is operable to secure at least one blade (117) within a housing of a shaving blade cartridge (100). The retainer is extending along a pair of side edges (105) of the housing, between a front edge (101) of the housing and a rear edge (103) of the housing. The retainer comprises an upper end portion (201) and either a lower end portion (203) extending substantially parallel to the upper end portion and connected to the upper end portion via an intermediate portion (205), or one or a plurality of leg(s) (502) extending from an edge of the upper end portion.