Handheld Measuring Aid Pen-Like Grip Design
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Solution Overview
Problem
Existing hand-held measuring aids for object surface measurement often require a second guiding hand for precise guidance and contact, limiting user convenience and precision, especially when using a fist grip which can cause imbalance and torque.
Innovation Solution
The design of a hand-held measuring aid with a pen-like grip, featuring a body dimensioned for precision grip with a first section serving as a gripping area for the thumb, index finger, and middle finger, and an integrated electronic circuit for wireless communication, allowing one-handed operation and intuitive guidance without the need for a second hand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fist grip is used for holding the measuring aid, then the measuring aid can be held securely, but it causes imbalance and torque requiring a second guiding hand
Solution Approach 1:
The body is divided into a first section and a second section, with the first section specifically designed as a gripping area for precision grip while the second section contains the marking area and other components. This segmentation allows the measuring aid to be held like a pen with improved balance and control without requiring a second hand.
2Measurement precision
If a second hand is used for guiding the measuring aid, then measurement precision is improved, but productivity is reduced due to limited operational efficiency
Solution Approach 1:
The first section of the body is specifically designed with local quality characteristics suitable for precision grip (thumb, index finger, and middle finger positioning), enabling one-handed operation with sufficient control and measurement precision, thereby maintaining productivity without requiring a second hand.
3Productivity
If the measuring aid is designed for one-handed operation, then productivity is improved, but grip stability may be compromised
Solution Approach 1:
The measuring aid is designed to be dynamically held in a precision grip position during measurement, allowing the user to maintain stable control with one hand while keeping the second hand free for additional tasks, thus improving productivity without compromising grip stability.
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
Enables improved contact and measurement of points on an object surface with enhanced precision and comfort, reducing the risk of surface damage and allowing the second hand to be used for other tasks during measurement.
Implementation Method 1
A target point for such a laser tracker that can be targeted and tracked is formed by a retro-reflective unit (e.g. cube prism or corner cube retroreflector), which is connected to an optical laser measuring beam of the measuring device is targeted. The laser beam is reflected parallel back to the measuring device by the retroreflector
Implementation Method 2
The visual markings can in particular be provided by passive or active points of light that can be detected by a camera, in particular with the markings being formed by reflectors or by LEDs
Data Source
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AI summary
The invention relates to a handheld measuring aid for use in a system for measuring an object surface, which includes a station for determining the position and orientation of the measuring aid. The measuring aid comprises a body, visual markings arranged in a defined spatial relationship to form a pattern on the body within a marked area, a measuring probe for the object surface arranged at an opening of the body in a defined spatial relationship relative to the pattern, an operating element, an electronic circuit for generating a measurement trigger signal when the operating element is actuated, and wireless communication means for transmitting the measurement trigger signal to the station.According to the invention, the measuring aid is designed and configured in such a way and the body has such a first section and the first operating element is arranged on the first section of the body in such a way that the measuring aid is provided in measuring position for one-handed pen-like holding and the first section serves as a gripping area for at least the thumb and index finger (and in particular also the middle finger) of the user, and that in this measuring position the operating element can be actuated with the gripping thumb or the gripping index finger.