Showcase Shelf Roller Frame Assembly for Flexible Unit Alignment

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Solution Overview

Problem

The existing shelf for showcases faces challenges in machining, assembling, and material costs due to complex structures and high raw material expenses, particularly with the casing being extruded as a single element, which leads to distortion and limited alignment of roller units.

Innovation Solution

The shelf is redesigned with separate fixing frames and connection frames, allowing for simpler assembly and use of single or multiple roller units, reducing material costs and eliminating the need for machining ventilation holes, while maintaining smooth sliding movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the casing is extruded as a single element, then structural strength is improved, but raw material expense and machining cost increase

Engineering Contradiction:

Improvestructural strengthVSAvoidmanufacturing cost

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The single casing is divided into multiple segments (first casing, second casing, third casing, fourth casing) that can be produced separately through extrusion and then assembled together. This segmentation allows each segment to be manufactured more efficiently while maintaining the overall structural strength through proper connection design.

Inventive Principle:

Principle #1Segmentation

2Stability of the object's composition

If the casing is extruded as a single element, then structural integrity is improved, but distortion occurs during extrusion

Engineering Contradiction:

Improvestructural integrityVSAvoidextrusion precision

Core Design Contradiction:

Stability of the object's compositionVSManufacturing precision

Solution Approach 1:

Dividing the large single casing into multiple smaller extrusion segments reduces the complexity and difficulty of each extrusion process, minimizing distortion in each segment while maintaining overall structural integrity through designed connections.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Multiple separately extruded casing segments are merged together through assembly to form the complete casing structure, achieving both manufacturing precision in individual segments and structural integrity in the assembled whole.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If the casing size is increased to align more roller units, then alignment capacity is improved, but extrusion smoothness deteriorates

Engineering Contradiction:

Improvealignment capacityVSAvoidextrusion smoothness

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The large casing structure is segmented into multiple smaller extrusion units that can be produced with smooth extrusion, then assembled to achieve the required alignment capacity for multiple roller units.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The problem of aligning multiple roller units in a single large casing is solved by transitioning to a multi-dimensional assembly approach, where multiple smaller casings are arranged and connected to provide the necessary alignment capacity without requiring a single large extrusion.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

4Use of energy by moving object

If the casing is pressed to form ventilation holes, then air circulation is improved, but machining expense increases

Engineering Contradiction:

Improveair circulationVSAvoidmachining expense

Core Design Contradiction:

Use of energy by moving objectVSEase of manufacture

Solution Approach 1:

Ventilation holes are formed during the extrusion process itself rather than through subsequent pressing operations, integrating the air circulation function into the primary manufacturing step and eliminating additional machining expenses.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The functions of structural formation and ventilation hole creation are merged into a single extrusion process, achieving both air circulation and structural integrity without separate machining steps.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS8276772B2Shelf for showcase

Publication Date: 2012.10.02 SEIDAE IND CO LTD

AI summary

A shelf for a showcase in which a roller unit is formed with holding grooves on both sides of a bottom surface of a U-shaped roller plate. Fixing frames coupled with the roller plate include a bottom part, formed with a vertical rib to be fitted into the holding groove of the roller plate, and a vertical wall surrounding an outside of the roller plate and formed with a horizontal rib closing opened parts of fitting grooves of the roller plate, so that the fixing frames are mounted on both sides of the roller plate of the roller unit in pair correspondingly to each other. The vertical walls are formed with screw-coupling holes at front and rear ends in accordance with screw holes punched at both side walls of the end caps so as to be integrally coupled together by coupling screws.