Hammer Tacker With Retractable Blade For Staple And Cut Switching

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Solution Overview

Problem

Existing staplers that combine stapling and cutting functions are often cumbersome and difficult to operate, particularly when switching between these functions.

Innovation Solution

A stapler design featuring a head with a staple dispenser and a retractable blade carriage that allows the blade to extend and retract, enabling easy switching between stapling and cutting by rotating the device along its longitudinal axis, and incorporating a handle for swinging like a hammer to drive staples.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a stapler combines stapling and cutting functions in one device, then versatility is improved, but device complexity increases making it cumbersome to operate

Engineering Contradiction:

ImprovefunctionalityVSAvoidoperational complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The device is segmented into distinct functional modules: a staple dispenser mechanism and a retractable blade carriage. These modules are positioned separately within the head, allowing independent operation and reducing operational complexity while maintaining versatility.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The blade carriage is designed to be retractable, transitioning between extended and retracted positions. This dynamic configuration allows the blade to be deployed only when needed for cutting, reducing complexity during stapling operations while maintaining cutting functionality.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If a stapler combines stapling and cutting functions in one device, then versatility is improved, but ease of operation deteriorates when switching between functions

Engineering Contradiction:

ImprovefunctionalityVSAvoidease of switching functions

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The stapler is designed to be rotated about an axis extending longitudinally along the handle. This rotational movement transitions the device between stapling and cutting orientations, providing an intuitive and easy method for switching functions without complex mechanisms.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The single device performs both stapling and cutting functions through its dual-mode design. The universal head structure accommodates both the staple dispenser and retractable blade, allowing one tool to replace multiple specialized tools while maintaining ease of operation through simple rotation.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS8321981B2Hammer tacker

Publication Date: 2012.12.04 STANLEY BLACK & DECKER INC

AI summary

A stapler capable of dispensing staples therefrom and comprising a head and a handle. The head comprises a staple dispenser configured to dispense a staple from the stapler when a compressive force is applied to the staple dispenser, and a blade carriage that carries a blade and is configured such that the blade is extendable from the head of the stapler and is retractable into the head of the stapler. The handle is attached to the head, and permits the stapler to be swung like a hammer to drive staples dispensed from the staple dispenser.