Sliding Securing Device for Vehicle Seat Head Restraint Rods
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Solution Overview
Problem
Existing securing devices for attaching devices to motor vehicle seat head support rods obstruct or block the adjustability of the head support, posing safety risks by fixing the device firmly in place.
Innovation Solution
The securing device employs sliding elements between the securing elements and head support rods, allowing for a stable hold while enabling vertical displacement, utilizing a combination of securing elements, sliding elements, and intermediate spring elements to manage friction and movement, ensuring a slip-proof connection without obstructing the head support's adjustability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the securing device is connected fixedly to the head support rods, then stable securing of the device is achieved, but the head support lowering is obstructed or blocked
Solution Approach 1:
The securing device transitions from a fixed connection to a dynamic connection that can adapt its state. The securing elements are designed to be disengageable from the head support rods, allowing the device to switch between a secured state (when stationary) and a movable state (when adjusting), thus resolving the contradiction between stable securing and ease of operation
Solution Approach 2:
The securing device is divided into separable components: the securing elements that can be detached from the head support rods. This segmentation allows the device to be securely attached when needed while enabling easy detachment for adjustment, preventing the obstruction problem while maintaining stability during use
2Reliability
If securing elements are used to hold the device firmly on the head support rods, then the device is held in position, but vertical displacement becomes difficult
Solution Approach 1:
The friction parameters between the securing elements and head support rods are carefully controlled. The securing elements provide sufficient friction to hold the device in position vertically, but the friction is not so high as to prevent intentional displacement. This parameter optimization resolves the contradiction by allowing both stable positioning and controlled movement
Solution Approach 2:
The securing elements act as intermediary components between the device and the head support rods. They provide a controlled interaction that allows for both stable holding and intentional displacement, mediating between the conflicting requirements of firm attachment and ease of movement
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
This solution provides a stable and adjustable attachment that prevents obstruction of the head support's movement, ensuring safety by allowing manual or electric motor displacement along the head support rods while maintaining a secure hold.
Implementation Method 1
The holding force and the coefficient of friction between the sliding elements and the head support rods can preferably be selected here in such a manner that, firstly, the securing device is held in a slip-proof manner in its vertical position on the head support rods and, secondly, nevertheless manual or electric motor displacement of the securing device in the direction of the longitudinal axis of the head support rods
Implementation Method 2
Said intermediate elements can be, for example, spring elements for supporting and/or providing the holding force
Data Source
AI summary
A securing device for removably attaching a device to two mutually spaced head support rods (1a, 1b) of a motor vehicle seat (1), having a receiving bushing (3e) for receiving a plug element (2a) which is arranged on the device (2) and having a first and a second securing element (3, 3′, 4, 4′) with which the receiving bushing (3e) can be secured on the head support rods (1a, 1b). The first and the second securing element (3, 3′, 4, 4′) are formed on opposing sides for arranging on the head support rods (1a, 1b), and connectors (5, 5a, 5b) are provided for reciprocally connecting the securing elements (3, 3′, 4, 4′), wherein sliding elements (6a, 6b) are arranged between the securing elements (3, 3′, 4, 4′) and the head support rods (1a, 1b).