Flat Cable Take-Up Structure for Compact Slide Seat Power Routing
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Solution Overview
Problem
Existing cable take-up devices for slide seats are bulky due to the parallel arrangement of the spiral spring and take-up part, making it difficult to reduce the size of the power supply device.
Innovation Solution
A compact cable take-up device with a take-up housing part, a fixing shaft, a rotation regulator, a spring case, and a spiral spring, where the spiral spring generates take-up force and the device is configured to house the flexible flat cable in a drawable manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the spiral spring and take-up part are disposed parallel to each other, then the power supply device can supply power to the slide seat, but the size of the spring unit becomes large
Solution Approach 1:
The patent merges the spiral spring and take-up part into a single integrated spring unit where the spiral spring is disposed inside the take-up part. This combination allows the take-up part to house the cable while the spiral spring provides tension, eliminating the need for separate parallel components and reducing overall size.
Solution Approach 2:
The spiral spring is nested inside the take-up part, with the take-up part forming an outer structure that contains the spiral spring. This nested arrangement allows both components to occupy the same spatial envelope, significantly reducing the volume required compared to parallel disposition.
2Reliability
If the spiral spring and take-up part are disposed parallel to each other, then the power supply device can supply power to the slide seat, but it becomes difficult to reduce the size of the power supply device
Solution Approach 1:
The patent merges the spiral spring and take-up part into a single integrated spring unit where the spiral spring is disposed inside the take-up part. This combination allows the take-up part to house the cable while the spiral spring provides tension, eliminating the need for separate parallel components and reducing overall size.
Solution Approach 2:
The spiral spring is nested inside the take-up part, with the take-up part forming an outer structure that contains the spiral spring. This nested arrangement allows both components to occupy the same spatial envelope, significantly reducing the volume required compared to parallel disposition.
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 device achieves a compact structure that can supply power to a slide seat while following its movement, by effectively taking up and drawing the flexible flat cable with the generated take-up force.
Implementation Method 1
a spiral spring configured to generate take-up force in a direction of take-up of the housed portion through drawing of the flexible flat cable
Data Source
AI summary
Provided is a cable take-up device for a flexible flat cable routed for a slide seat slidably supported so as to be movable forward and backward along a fixed rail fixed to the vehicle cabin floor. The cable take-up device includes: a take-up housing part that takes up a housed portion in a drawable manner and houses it inside with a front end portion fixed to a rail front end portion and a rear end portion fixed to the slide seat; a take-up force generation part that generates a take-up force in a direction of take-up of the housed portion through drawing of the cable routing body; and a slit that applies the take-up force of the take-up force generation part to the housed portion.