Rotatable Transmission Base for Drive Shaft Angular Adjustment

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Solution Overview

Problem

Existing transmission devices for drive shafts lack versatility and ease of assembly, particularly in applications involving multiple glass panels, as they require complex mounting procedures and limited angular adjustment.

Innovation Solution

A transmission device with a one-piece base body that encloses the drive shaft, featuring a movably mounted pinion and toothed rack, along with a housing that includes a connecting element for mounting to a building structure, allowing for improved attachment options and simplified assembly through rotatable mounting and guide elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the transmission device uses a fixed mounting structure on the building structure, then the structural stability is improved, but the angular adjustment capability deteriorates

Engineering Contradiction:
Improvestructural stabilityVSAvoidangular adjustment capability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The base body is designed to be rotatably mounted on the housing, allowing the transmission device to dynamically adjust its angular position relative to the building structure while maintaining stable operation. This dynamic mounting enables angular adjustment without compromising structural stability during actual use.

Inventive Principle:
Principle #15Dynamics

2Manufacturing precision

If the transmission device requires complex mounting procedures, then the mounting precision is improved, but the assembly time deteriorates

Engineering Contradiction:
Improvemounting precisionVSAvoidassembly time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The transmission device is divided into separate modular components: the base body that mounts to the building structure, and the transmission mechanism that attaches to the drive shaft. This segmentation allows each component to be pre-assembled and tested independently, then quickly combined, reducing overall assembly time while maintaining mounting precision through dedicated mounting interfaces.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The base body is designed with pre-integrated mounting features and the connecting elements are pre-positioned during base body manufacturing. This preliminary preparation of mounting interfaces eliminates the need for complex field assembly operations, allowing rapid installation while ensuring precise mounting alignment.

Inventive Principle:
Principle #10Preliminary action

3Object-affected harmful factors

If the housing is designed as a complex structure, then the protection capability is improved, but the manufacturing cost deteriorates

Engineering Contradiction:
Improveprotection capabilityVSAvoidmanufacturing cost
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The housing serves multiple functions simultaneously: it protects the base body and internal components, provides mounting surfaces for connecting elements, guides the rotational movement of the base body, and serves as a structural support. This multi-functionality eliminates the need for separate protective housings and mounting brackets, reducing overall complexity and manufacturing cost while maintaining comprehensive protection capability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enhances assembly efficiency and versatility by allowing easy mounting on both the drive shaft and building structure, with improved angular adjustment and cost-effective manufacturing, facilitating the use in various applications such as greenhouse glass panels.

Implementation Method 1

the base body has a guide element and the housing has a guide member and the guide element and the guide member are matched to one another in such a way that the base body is rotatably mounted on the housing

Methodology Applied
Scientific EffectMechanical guidance:

Implementation Method 2

a pinion and a toothed rack, the one-piece base body at least partially enclosing the drive shaft when it is arranged on the drive shaft, the pinion being mounted on the base body and is arranged on the drive shaft, wherein the rack cooperates with the pinion

Methodology Applied
Scientific EffectRack and pinion mechanism: Rack and Pinion

Data Source

PatentEP3447333B1Transmission device for attaching to a drive shaft
Publication Date: 2020.08.26 LOCK ANTRIEBSTECHN
  • EP3447333B1 patent drawingFigure 1
  • EP3447333B1 patent drawingFigure 2
  • EP3447333B1 patent drawingFigure 3

AI summary

Gear device (18, 1) for mounting on a drive shaft, wherein the gear device (18, 1) comprises a one-piece base body (3), a pinion (4) and a rack (5), wherein in the arranged state on the drive shaft the one-piece base body (3) at least partially encloses the drive shaft, wherein the pinion (19, 4) is arranged on the base body (3) and on the drive shaft in the assembled state, wherein the rack (5) interacts with the pinion (19, 4) and extends through the base body (3), wherein the pinion (19, 4) and the rack (5) are movably mounted on the base body (3).The transmission device (18, 1) is characterized in that the transmission device (18, 1) comprises a housing (2), wherein the housing (2) has a connecting element for mounting the transmission device (18, 1) to a building structure and wherein, regardless of an arrangement of the transmission device (18, 1) on the drive shaft, the base body (3) is rotatably mounted on the housing (2).