Gear Head Socket Tool Perpendicular Drive Mechanism

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Solution Overview

Problem

Conventional ratchet tools and wrenches are ineffective in areas with limited space, as they cannot be manipulated to engage nuts or bolts due to spatial constraints, and existing solutions do not allow the fastener to extend through the socket.

Innovation Solution

A non-ratcheting gear head tool with a perpendicular drive mechanism using a beveled pinion gear that mates with a straight bevel gear on the socket, allowing for 90-degree angle operation and accommodating standard or deep sockets with the fastener projecting through, combined with a slim housing and universal driving means for extension bars.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional ratchet or wrench is used to tighten or loosen a nut or bolt, then the tool can effectively engage the fastener, but the tool cannot be manipulated in areas with limited space due to the required arc of movement

Engineering Contradiction:
Improvemanipulability in confined spacesVSAvoidspatial requirements
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent transitions from linear/planar motion to three-dimensional rotational motion by positioning the drive shaft perpendicular to the socket axis. The bevel gears enable the input drive to rotate at 90 degrees relative to the output socket, allowing operation in confined spaces where the fastener can extend through the socket in the vertical dimension while the drive operates horizontally.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The bevel gears serve as intermediary elements that transfer rotational motion from the drive shaft to the socket at a 90-degree angle. These gears act as the mechanical mediator that converts the perpendicular input rotation into axial socket rotation, enabling the tool to function in restricted spatial environments.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If a through-hole socket is used to allow the fastener to extend through, then access to the fastener is improved, but conventional sockets do not provide integrated gear engagement

Engineering Contradiction:
Improvefastener accessibilityVSAvoidsocket structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges the socket function with the gear engagement function by integrating bevel gears directly into the socket structure. The ring gear is formed as part of the socket assembly, combining the fastener engagement capability with the perpendicular drive transmission, eliminating the need for separate gear components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The socket is designed to perform multiple functions: it engages the fastener through its open ends, transmits perpendicular rotational force via integrated bevel gears, and allows the fastener to extend through while maintaining structural integrity. This multi-functional design eliminates the need for separate through-hole adapters.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If a perpendicular drive mechanism is implemented to operate at 90 degrees to the fastener axis, then operation in confined spaces is enabled, but the gear engagement mechanism becomes more complex

Engineering Contradiction:
Improveoperational flexibility in restricted environmentsVSAvoidgear mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The bevel gears are integrated directly into the socket structure rather than being separate components. The ring gear forms part of the socket assembly, merging the fastener engagement function with the perpendicular drive transmission function, thereby reducing overall device complexity despite the sophisticated gear mechanism.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables efficient loosening or tightening of nuts or bolts in confined spaces without arcing movement, accommodating various socket sizes and allowing the fastener to extend through the socket, providing a compact and versatile solution for restricted environments.

Implementation Method 1

a beveled pinion gear that mates with a straight bevel gear on the socket, allowing for 90-degree angle operation

Methodology Applied
Scientific EffectBevel gear mechanism: Gear

Data Source

PatentUS9149916B2Gear head socket tool
Publication Date: 2015.10.06 KISER CODY
  • US9149916B2 patent drawing
  • US9149916B2 patent drawing
  • US9149916B2 patent drawing

AI summary

A non-ratcheting socket tool for loosening or tightening nuts or bolts, especially when the nut or bolt head is located in a crowded area where there is inadequate space to pivot or rotate a handle of a wrench or ratchet. The gear head socket tool includes a slim streamlined housing including a straight beveled gear coaxially arranged around a sleeve or ring having a plurality of internal nut/bolt gripping wrench teeth, wherein the straight beveled gear teeth mate with beveled pinion gear teeth perpendicular thereto. An extension bar is inserted into the end of the gear head housing perpendicular to the gear head. Rotation of the extension bar with a ratchet, a breaker bar, strong arm or a power tool such as a pneumatic or electric impact wrench, or drill motor provides perpendicular torque to drive the gear head socket rotating the teeth turning the nut or bolt.