Adjustable Cup Holder Tray With Two-Position Latch Mechanism

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Solution Overview

Problem

Existing cup holders lack a simple and effective mechanism for adjusting the height of the tray to accommodate beverage containers of varying heights, leading to instability and potential spills.

Innovation Solution

A cup holder design featuring a cylindrical holder body with a vertically movable tray, utilizing a lock member, guide groove, latch recessed portions, and energizing members to securely latch the tray at different heights, allowing for easy adjustment between two positions using an operation member.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a complex mechanism is used to adjust the tray height, then the tray can be held securely at different heights, but the device complexity increases

Engineering Contradiction:
Improvetray stabilityVSAvoidadjustment mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The adjustment mechanism is segmented into discrete latch positions (first and second latch recessed portions) along the guide groove, allowing the tray to be securely held at specific heights without requiring a continuous complex adjustment system. The lock member engages with these segmented positions to provide stable support.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The lock member is designed to automatically engage with the latch recessed portions through its own weight and the guide groove geometry, eliminating the need for additional actuators or complex control mechanisms. The operation member simply triggers the self-latching action through the inclined surface interaction.

Inventive Principle:
Principle #25Self-service

2Device complexity

If a simple mechanism is used for height adjustment, then the device complexity is reduced, but the tray stability and security are compromised

Engineering Contradiction:
Improveadjustment mechanism complexityVSAvoidtray stability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The lock member incorporates a movable latch portion that can dynamically transition between engaged and disengaged states with the latch recessed portions. This dynamic capability allows a simple mechanism to achieve secure holding when engaged, while remaining easy to operate when disengaged through the operation member.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If the tray is designed to move vertically freely, then it can accommodate various container heights, but the tray becomes unstable and may cause spills

Engineering Contradiction:
Improvecontainer height accommodationVSAvoidtray stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The guide groove is segmented with discrete latch recessed portions at different heights, allowing the tray to accommodate various container heights by selecting appropriate latch positions while maintaining stability when engaged at any given position.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The lock member serves multiple functions: it guides the tray vertically through the guide groove, latches the tray at different heights by engaging with latch recessed portions, and provides stable support when engaged. This multi-functional design enables both adaptability and stability.

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

4Reliability

If the lock mechanism requires significant force to engage, then the latch is secure, but the ease of operation is reduced

Engineering Contradiction:
Improvelatch securityVSAvoidoperation member operability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

Instead of requiring force to maintain the latched state, the inclined surface of the lock member is designed so that the engagement is self-latching through the interaction with the operation member. The operation member triggers the latch engagement by moving in the opposite direction of what would be intuitively expected, using the inclined surface to convert small operational movements into secure latching forces.

Inventive Principle:
Principle #13The other way round (Inversion)

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

The design provides stable and secure height adjustment of the tray, ensuring the beverage container is held at the optimal position, preventing spills and accommodating various container heights with a simple and effective mechanism.

Implementation Method 1

a latch energizing member that energizes the lock member to a latch direction for latching the lock member with the first latch recessed portion or the second latch recessed portion

Methodology Applied
Scientific EffectSpring energy storage and release: Spring

Implementation Method 2

a movement energizing member that energizes the tray from the first position toward the second position so as to vertically move the lock member of which latch with the first latch recessed portion has been canceled toward the second latch recessed portion through the guide groove

Methodology Applied
Scientific EffectSpring energy storage and release: Spring

Implementation Method 3

a guide groove that is formed on a sidewall of the holder body and that enables the lock member to move in a perpendicular direction

Methodology Applied
Scientific EffectMechanical guidance through groove geometry: Groove

Implementation Method 4

an operation member that cancels latch of the lock member with the first latch recessed portion by causing the lock member to turn to a cancellation direction opposite to the latch direction

Methodology Applied
Scientific EffectMechanical torque application: Torque

Data Source

PatentUS9221581B2Cup holder
Publication Date: 2015.12.29 TOYODA GOSEI CO LTD
  • US9221581B2 patent drawing
  • US9221581B2 patent drawing
  • US9221581B2 patent drawing

AI summary

A cup holder has a height adjuster that includes a lock member turnably held by the tray, a guide groove that is formed on a sidewall of the holder body and that enables the lock member to move in a perpendicular direction, a lower latch recessed portion and an upper latch recessed portion that are formed on a groove side surface which faces the guide groove on the sidewall and that cause the tray to be held at a lower position or an upper position by latching the lock member, a latch energizing member that energizes the lock member to a latch direction for latching the lock member with the lower latch recessed portion or the upper latch recessed portion, an operation member that cancels latch of the lock member with the lower latch recessed portion when the tray is located at the lower position, and a movement energizing member that energizes the tray upward.