Weapon Mounting Subframe With Pivotable Attachment Points

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing solutions for mounting large-caliber weapon systems on vehicles fail to effectively minimize the mechanical stresses on the chassis during firing, as they either result in excessive mass or inadequate resistance to firing forces, making them unsuitable for large-caliber artillery systems.

Innovation Solution

A connection device with multiple attachment points between the chassis and subframe, featuring lugs with rods and pivotable blocks that allow for translation and pivoting, along with spring means for securing, is used to distribute and absorb firing stresses, thereby reducing the load on the chassis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If telescopic arms are used to dissociate the artillery from the carrier, then the weapon system can be mounted on the vehicle, but the device complexity and mass become excessive

Engineering Contradiction:

Improvemounting capabilityVSAvoidconnection mechanism complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The connection mechanism is segmented into discrete attachment points distributed on the side faces of the frame and subframe, with each point comprising a rod and block assembly. This segmentation allows the complex mounting function to be distributed across multiple simple, identical units rather than requiring a single complex telescopic arm mechanism.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of using active telescopic arms that extend and retract to accommodate movement, the invention inverts the approach by using rigid rods with pivotable blocks that allow passive accommodation of firing stresses through controlled movement at the attachment points, eliminating the need for complex active adjustment mechanisms.

Inventive Principle:

Principle #13The other way round (Inversion)

2Device complexity

If conventional connection means are used to mount the subframe on the chassis, then the structure is simple, but the firing stresses cannot be withstood

Engineering Contradiction:

Improveconnection mechanism simplicityVSAvoidresistance to firing forces

Core Design Contradiction:

Device complexityVSStrength

Solution Approach 1:

The connection mechanism employs attachment points with different local qualities - the rods provide rigid structural support while the pivotable blocks provide localized flexibility. This combination allows the overall structure to maintain simplicity while achieving the strength and stress absorption capability required for large-caliber weapon systems.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The attachment points incorporate dynamic elements through the pivotable blocks that can translate and pivot relative to the rods, allowing the connection mechanism to adapt dynamically to firing stresses. This dynamic capability enables the simple rod-block structure to withstand forces that would fail static conventional connections.

Inventive Principle:

Principle #15Dynamics

3Stability of the object's composition

If the subframe is rigidly secured to the chassis, then structural integrity is maintained, but the stresses on the chassis during firing are excessive

Engineering Contradiction:

Improvestructural integrityVSAvoidchassis stress during firing

Core Design Contradiction:

Stability of the object's compositionVSStress or pressure

Solution Approach 1:

The rod and block assemblies serve as intermediary elements between the rigid subframe and chassis. These intermediaries maintain structural integrity through the rigid rods while absorbing and distributing firing stresses through the pivotable blocks, preventing excessive stress transmission to the chassis.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The connection mechanism changes the mechanical parameters of the connection between subframe and chassis by introducing controlled degrees of freedom through the pivotable blocks. This allows the system to maintain overall structural integrity while modifying the stress transmission characteristics to reduce chassis loading during firing.

Inventive Principle:

Principle #35Parameter changes

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

This solution provides a lightweight and effective means to connect the vehicle chassis to the weapon system, minimizing the stresses on the chassis during firing and ensuring the structural integrity of the vehicle, particularly useful for large-caliber artillery systems.

Implementation Method 1

spring means being interposed between the securing means and the brackets

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentEP1960729B1Device for mounting a weapon system on a vehicle chassis

Publication Date: 2011.02.16 NEXTER SYST SA

Figure 1~2
Figure 3
Figure 4a~4b

AI summary

The invention relates to a device for mounting a weapon system on a vehicle chassis, which device comprises a false chassis (12) which bears the weapon system and is secured to the chassis (4) by a connection means (17). This device is characterized in that the connection means comprises at least two attachment points (17) formed by lugs (18) secured to the chassis (4), which lugs each bear a rod (20) on which a block (22) secured to the false chassis (12) is mounted, which block is able both to move translationally and pivot with respect to the rod (20).