Pull-Out Hose Guide With Translational Spring Retraction
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Solution Overview
Problem
Existing pull-out hose guide devices are limited by their structure, functionality, assembly, and handling, particularly in terms of weight, installation orientation, and user effort required to extend and retract the hose.
Innovation Solution
A pull-out hose guide device with a translational spring retraction unit coupled to a guide roller assembly, allowing adjustable spring preload to reduce user effort and enable installation in any spatial orientation, featuring a lightweight design and compact construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional spring retraction roller or guide weight roller is used, then the hose can be automatically retracted, but the device becomes heavy and limited in installation orientation
Solution Approach 1:
The patent replaces the traditional mechanical spring retraction roller or guide weight roller with a translational spring retraction unit. This substitution eliminates the need for heavy rollers while maintaining the automatic retraction function, thereby reducing device weight and enabling installation in any spatial orientation without being constrained by gravity-dependent mechanisms.
Solution Approach 2:
The patent changes the fundamental parameter of the retraction mechanism from rotational (roller-based) to translational (linear spring-based). This parameter change allows the device to function independently of gravitational orientation, improving adaptability while using lighter components compared to traditional roller mechanisms.
2Ease of operation
If a guide roller arrangement with rotational movement is used, then the hose can be guided smoothly, but the device complexity increases
Solution Approach 1:
The patent substitutes the complex rotational guide roller mechanism with a simpler translational spring retraction unit. The guide part translates linearly along the hose bend length direction, eliminating the need for rotational joints and complex bearing arrangements, thereby reducing device complexity while maintaining smooth hose guidance through the translational movement of the guide roller.
Solution Approach 2:
The patent segments the device into distinct functional components: a stationary device part, a translational guide part, and a spring retraction unit. This segmentation allows each component to perform its specific function independently, simplifying the overall structure compared to integrated rotational mechanisms while ensuring smooth hose guidance through the dedicated guide roller.
3Extent of automation
If a spring retraction roller with winding mechanism is used, then automatic retraction is achieved, but the device size and complexity increase
Solution Approach 1:
The patent replaces the winding-based spring retraction roller mechanism with a translational spring retraction unit. Instead of winding the spring around a rotating roller, the spring directly translates linearly, eliminating the winding mechanism and reducing device complexity while maintaining automatic retraction functionality through the translational movement of the guide roller assembly.
Solution Approach 2:
The patent extracts and eliminates the unnecessary winding mechanism from the spring retraction system. By using a direct translational spring arrangement rather than a winding roller, the invention removes redundant mechanical components, simplifying the retrieval device structure while preserving the automatic retraction capability.
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 provides reduced user effort for extending and retracting the hose, supports installation in any desired position, and maintains a lightweight and compact form factor, enhancing ease of assembly and operation.
Implementation Method 1
The retrieval device (7) includes a spring retraction unit (8), i.e., a unit that provides a spring retraction force, i.e. a spring force for retracting a retractable object coupled to it
Implementation Method 2
The guide roller arrangement (4) has a guide part (5) which is guided on the stationary device part (3) for translational movement, and at least one guide roller (6)
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
1. Pull-out hose guide device and sanitary shower. 2.1. The invention relates to a pull-out hose guide device for guiding a pull-out hose (1) with a hose bend (1b) of variable hose bend length, in particular a pull-out hose of a sanitary shower, comprising a stationary device part (3), a guide roller arrangement (4) which is guided translationally on the stationary device part in a hose bend length direction (SLR) and which has a guide element that is guided translationally on the stationary device part, and a guide roller that can be inserted into a bend reversal area of the hose bend (1a), and a retraction device coupled to the guide roller arrangement (4) which includes a spring return unit. 2.2. According to the invention, the retraction device comprises a retraction element (9) which can be wound onto the spring return unit and unwound and wound up with a variable portion of its length.The spring return unit is translationally coupled to the guide roller assembly (4), and the retraction element (9) is fixed to the stationary device part by a fastening section (9a). 2.3. Use e.g. for bathtub hand showers and kitchen pull-out showers. 3. Fig. 4.