Drive device
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Solution Overview
Problem
Existing sensor drive mechanisms are complex and use numerous components, such as gears, to switch rotational forces, making them inefficient for expanding detection or transmission ranges.
Innovation Solution
A drive device with a holding unit mounted to a driving shaft that rotates around an axis with an inclined plane, allowing the base portion to swing along two orthogonal axes, expanding the detection or transmission range without rotating the base portion, thus preventing signal line twisting or breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a friction clutch and multiple gears are used to switch rotational force direction in the sensor drive mechanism, then the rotation of the sensor holder can be switched between right-left and up-down directions, but the mechanism becomes complicated with a large number of components
Solution Approach 1:
The patent extracts and eliminates the friction clutch and multiple gear components from the sensor drive mechanism. Instead of using these complex components to switch rotational force direction, the invention uses a simplified holding unit with inclined planes that directly guides the sensor holder along the desired rectangular locus without requiring intermediate switching mechanisms.
Solution Approach 2:
Rather than using a friction clutch to switch the direction of rotational force from a driving shaft, the invention inverts the approach by using inclined planes on the holding unit to convert the rotational motion into the desired rectangular scanning motion. This eliminates the need for complex direction switching mechanisms while achieving the same functional result.
2Device complexity
If the base portion is disposed along a plane orthogonal to the driving shaft axis, then the mechanism structure is simple, but the detection range or transmission range is limited
Solution Approach 1:
The patent applies dimensionality change by tilting the base portion at a predetermined angle relative to the plane orthogonal to the driving shaft axis. This angular adjustment adds a dimensional component to the sensor holder's motion path, expanding the detection or transmission range without complicating the overall mechanism structure. The inclined plane on the holding unit facilitates this angular displacement.
Data Source
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AI summary
Provided is a sensor drive device (100) comprising: a sensor substrate (10) having a sensor (11) provided thereupon that detects information obtained from a prescribed detection range; and a holding unit (20) that is attached to a drive shaft (31) driven by a drive unit (30) and holds the sensor substrate (10). The holding unit (20): forms an inclined plane (20a) inclined by a prescribed angle relative to a flat plane intersecting a drive shaft line (AXd) along which the drive shaft (31) is arranged; and rotates the sensor substrate (10) around the drive shaft line (AXd) while holding same on the inclined plane (20a).