Child Height Measuring Apparatus with Mirror and Friction Carriage
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Solution Overview
Problem
Existing devices for measuring a child's height struggle to keep the child still during the measurement process, as conventional methods do not effectively maintain the child's attention.
Innovation Solution
An apparatus featuring a track member attached to a wall, a visible scale, a measurement carriage movable vertically along the track, and a mirror positioned adjacent to the track to maintain the child's attention while measuring their height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional measuring apparatus is used, then the measurement process is simple, but the child cannot be kept still during measurement
Solution Approach 1:
A mirror is introduced as an intermediary element between the child and the measurement process. The mirror captures the child's attention and maintains their focus, serving as a mediator that enables successful measurement without directly restraining the child. The mirror is positioned within the apparatus housing, allowing the child to view themselves while standing at the measurement location.
2Reliability
If a mirror is added to maintain child attention, then the child remains still during measurement, but the device complexity increases
Solution Approach 1:
The mirror is integrated into the existing apparatus housing structure, merging the attention-maintaining function with the measurement device. The housing serves dual purposes: protecting internal components and providing the mirror mounting structure. This combination reduces the need for separate components and simplifies the overall device architecture.
Solution Approach 2:
The apparatus housing is designed to serve multiple functions: it protects internal components, provides structural support, and houses the mirror mechanism. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity while achieving the goal of maintaining child attention.
3Ease of operation
If the carriage is made movable along the track, then the height measurement can be taken, but the carriage may move unintentionally during measurement
Solution Approach 1:
A friction member is introduced to provide preliminary counter-action against unintentional carriage movement. The friction member is positioned to contact the track and apply sufficient frictional force to prevent the carriage from moving unintentionally during measurement, while still allowing controlled movement when needed for taking measurements.
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 apparatus allows for accurate measurement of a child's height by maintaining their attention through the use of a mirror, ensuring the child remains still during the measurement process.
Implementation Method 1
a friction member formed as part of the carriage at its ends such that the carriage is held in contact with the track member, to stop and prevent motion of the carriage along the track member
Data Source
AI summary
A device for measuring the height of a child, standing on a floor, near a wall, comprising a housing having a plastic molded front panel that includes a track member, and a molded pack panel attacked to the backside of said front panel; said housing attached to a wall. The housing front panel has a central space and a mirror to keep the attention of the child during the measuring process, and a visible scale and a carriage, each attached to the track member, with the carriage being vertically movable along the track member. The carriage can be manually moved by a user to correspond to the top level of the child's head, an indicator on the carriage points to a location on the visible scale indicating the height of the child. The front panel has a flat vertical surface parallel and next to the vertical track for a user to place indicia with a marker next to the carriage with child height measurement information.