Stepped Engagement Portion for Socket Display Board Assembly

Solution Overview

Problem

Existing display boards for sockets without stepping inner holes cause the sleeve member to easily detach when disassembled, leading to unstable socket assembly and potential failure in storage and display.

Innovation Solution

A display board with a stepped engagement portion featuring a small-diameter portion and inner hole engagement portion, allowing secure assembly and disassembly of sockets, ensuring the sleeve member remains attached during use and storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional display board structure is used for sockets without stepping inner holes, then the socket can be assembled to the display board, but the sleeve member easily detaches during disassembly causing unstable assembly

Engineering Contradiction:

Improveassembly stabilityVSAvoiddisassembly control

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The engagement portion is divided into two distinct segments: a large-diameter engagement portion that interfaces with the large-diameter hole, and a small-diameter engagement portion that interfaces with the small-diameter hole. This segmentation allows differential engagement forces to be applied to different parts of the positioning hole, enabling the sleeve member to remain securely positioned during disassembly while still allowing controlled removal of the socket.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the engagement portion have different diameters, creating local quality variations. The large-diameter portion provides strong engagement for the outer structure, while the small-diameter portion provides precise control for the inner sleeve member. This local differentiation ensures that each region performs its specific function optimally during both assembly and disassembly operations.

Inventive Principle:

Principle #3Local quality

2Strength

If the sleeve member is overly engaged with the display board, then the socket can be securely assembled, but the sleeve member easily departs from the socket during disassembly

Engineering Contradiction:

Improveengagement strengthVSAvoidsleeve member retention

Core Design Contradiction:

StrengthVSReliability

Solution Approach 1:

The engagement portion is divided into two distinct segments: a large-diameter engagement portion that interfaces with the large-diameter hole, and a small-diameter engagement portion that interfaces with the small-diameter hole. This segmentation allows differential engagement forces to be applied to different parts of the positioning hole, enabling the sleeve member to remain securely positioned during disassembly while still allowing controlled removal of the socket.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The small-diameter engagement portion acts as an intermediary element between the display board and the sleeve member. During disassembly, this intermediate structure provides a controlled engagement point that maintains sleeve member retention while allowing the socket to be removed. The stepped geometry mediates the force distribution to prevent sleeve member detachment.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Device complexity

If a conventional display board structure is used, then the structure is simple, but the socket fails to assemble steadily and easily falls off during storage and display

Engineering Contradiction:

Improvedisplay board structureVSAvoidsocket assembly stability

Core Design Contradiction:

Device complexityVSStability of the object's composition

Solution Approach 1:

The engagement portion is divided into two distinct segments: a large-diameter engagement portion that interfaces with the large-diameter hole, and a small-diameter engagement portion that interfaces with the small-diameter hole. This segmentation allows differential engagement forces to be applied to different parts of the positioning hole, enabling the sleeve member to remain securely positioned during disassembly while still allowing controlled removal of the socket.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The stepped engagement portion creates a nested-like structure where the small-diameter portion is contained within the larger engagement structure. This nested geometry allows the sleeve member to be positioned within the socket while both are engaged with the display board, providing multi-level engagement that enhances assembly stability during storage and display without requiring complex external structures.

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentUS9434065B2Set of display board and socket

Publication Date: 2016.09.06 OU YU HUA

AI summary

A display board for socket is provided, for assembling of at least one socket thereto. The socket includes a positioning hole including a large-diameter hole, a small-diameter hole and an inner hole. The display board includes a main body. The main body is formed with an assembling portion. The assembling portion includes at least one stepped engagement portion protrudedly formed on a surface of the main body. The stepped engagement portion includes a small-diameter portion and an inner hole engagement portion. The small-diameter portion includes a first lateral surface, and the inner hole engagement portion includes a second lateral surface. When the stepped engagement portion is inserted in the positioning hole, the first lateral surface corresponds to and is releasingly assembled within the small-diameter hole, and the second lateral surface corresponds to and is tightly engaged with an inner wall of the inner hole.