Metal-Working Apparatus TRIZ Cases

A utility knife employs a four-bar linkage to move the blade assembly between safety and cutting positions.

A shaving blade assembly uses a geometrically optimized skin contact member to distribute pressure and adjust cutting angles.

A door frame design uses through-holes in lock-device brackets to enable single-side welding of the rear sash.

A pocket safety cutter uses a cam and lifter mechanism to extend the blade during housing pivot.

A centrifugal cutting head assembly uses overlapping drum stations bolted together to simplify the structural design.

Two-shot molding integrates a sealing ring into the removable cap, eliminating separate o-rings and reducing assembly time for battery-powered razors.

Active and inactive contrast member sections rotate via servomechanism to enable high-speed transversal perforations while reducing initialization time.

Hydraulic adjustment system positions machining device inside turbine inlet to service components without disassembly.

Vacuum arc remelting deposits a ductile alloy liner onto a sensitive inner core, preventing surface cracking from thermal gradients during hot working.

Segmenting the winding mechanism from the vacuum cup reduces device complexity and improves operator flexibility during auto glass removal tasks.

Floating bearings and elastic elements convert rotary to reciprocating motion, reducing torque and noise in compact electric shaver heads.

Blades on the punch foot create indentations in rivet heads, allowing micro-stop feet to engage these features and prevent spinning during drilling.

A chopping machine uses a conveying unit with a trumpet-like feeding opening to automate material feed.

Segmented blades on a rotating arm follow an asymmetrical elliptical path, resolving the trade-off between multi-channel coverage and cutting precision.

A cutting tool uses a single guide surface to stabilize the load-bearing element within the housing recess.

Relocating the pivot bearing above the cover clears the collection area, preventing material jamming and simplifying cleaning.

A comb blade longer than the bar blade features a rounded tip edge to guide cutting along hair growth.

Pegs elevate food items above the cutting surface to prevent blade contact with the plate, ensuring complete slices and reducing accident risks.

Coupled sliders on slide rails reduce cycle time and energy consumption by minimizing wear in unequal pitch machine tool conveyers.

A segmented ergonomic grip adds recessed pathways for thumb and index fingers, reducing hand strain while maintaining simple handle structure.

Synchronizing punch head and die rotation eliminates manual alignment instability, ensuring high precision while accommodating various workpiece dimensions.

Dual-axis blade movement resolves single-pivot limitations by enabling the cutting unit to follow complex skin contours.

A suction fan draws trimmed hairs into a collection compartment, eliminating post-shaving cleanup and preventing hair escape during emptying.

A razor cartridge uses varying blade thickness and span to balance cutting resistance with durability.

Deionization electrodes neutralize electrostatic charges within suction ducts to improve dust detachment from strip material.

A secondary belt diverts cuts and end pieces from the main path, preventing contamination and eliminating extra buffering equipment.

An open-palm razor grip reduces tendonitis and carpal tunnel strain by replacing closed-hand handles.

Segmented blades in a guided housing remove burrs from composite edges in one pass, resolving the trade-off between precision and time.

A shaving device uses a pivot axis intersecting the driving member contact point to enable automatic contour following.

Integrated shielding members isolate the hair-collecting chamber from debris entering through the drive shaft opening.

An integrated gauge cutting system combines a measurement track and blade to resolve wire arcing errors during single-user operations.

Sliding cover repositions along the body housing to expose cutters, resolving rinsing interference when the device is inclined.

A cutting machine adjusts slice thickness based on sensed cross-sectional dimensions and fat content to target a specific cooked weight.

Annular corrugations with a drooping outer surface reduce pressure peaks on the skin, resolving comfort issues in shaving apparatus design.

A shaving head cutting unit integrates a central holding force between external and internal members to secure assembly without separate retainers.

A hair clipper guard blade uses a stop mechanism to prevent retraction beyond the first guard position, maintaining minimum skin distance.

A utility knife featuring a skewed pivotal blade lock mechanism for secure engagement.

An annular seat deforms under anvil pressure to expand a snap ring, resolving difficult manual installation constraints.

A knife blade profile uses a convex curvature to transition thickness from the cutting edge toward the back, ensuring structural integrity.

Score lines segment the trapezoidal blade to provide multiple cutting points, while indexing notches ensure consistent extension in standard holders.

Movable discharge channels switch between cutting and transport positions to reduce machine length while enabling efficient slice removal.

A cutting unit moves a blade along a linear path to separate fibers with high precision.

An elastic intermediate plate cushions the matrix to reduce blade wear while enabling cost-effective production of thin-walled materials.

A fiber cleaver uses a wedge and engaging pin to rotate the circular blade automatically during slider movement.

A metallic wire with a non-circular cross-section enables precise three-dimensional bending without additional processing steps.

Composite infrared absorbing system extends firing temperature range to 760°C, reducing thermal stress and improving adhesion.

Alternating notches and protrusions on a scribing wheel ridgeline prevent intersection skipping during cross scribing of brittle materials.

One-step forging of reheated low silicon aluminum alloys reduces shrinkage defects while maintaining mechanical integrity.

Press molding shapes plate raw material into cylindrical piping members, reducing manufacturing time and cost compared to conventional machining methods.