Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Elastic assembly, landing door mechanism and method for changing elastic coefficient of tension spring

A technology of elastic components and tension springs, which can be used in springs/shock absorbers, springs made of plastic materials, mechanical equipment, etc., and can solve the problem of high cost

Active Publication Date: 2018-10-09
HITACHI ELEVATOR CHINA
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has higher requirements on the output power of the car door machine, resulting in higher costs.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Elastic assembly, landing door mechanism and method for changing elastic coefficient of tension spring
  • Elastic assembly, landing door mechanism and method for changing elastic coefficient of tension spring
  • Elastic assembly, landing door mechanism and method for changing elastic coefficient of tension spring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0033] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening ele...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an elastic assembly, a landing door mechanism and a method for changing the elastic coefficient of a tension spring. The landing door mechanism comprises a guide rail frame, two landing doors and the elastic assembly; the two landing doors are connected with the guide rail frame, and the aim of enabling the two landing doors to synchronously move in an opposite or reversemanner is achieved, one end of the tension spring is connected with one landing door, and the other end of the tension spring is fixed to one side of the other landing door. The elastic assembly is arranged in the landing door mechanism, when the landing doors are in the closing state, the whole elastic coefficient of the tension spring is larger than the elastic coefficient of the tension spring,under the effect of a car door portal crane, and when the landing doors are gradually opened to a certain degree, the elastic coefficient of the tension spring is recovered to the original elastic coefficient. Under the condition of ensuring the self-closing force of the landing doors, the opening resistance of the tension spring to the landing doors under the landing door opening state is reduced, the requirement for the output power of the car door portal crane is achieved, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to an elastic component, a landing door mechanism and a method for changing the elastic coefficient of an extension spring. Background technique [0002] In the field of elevators, the landing door is a component used to isolate the outside world from the car door. When the car reaches the target floor, the landing door is opened together with the car door under the action of the car door machine. When the car is about to leave the target floor, the car door operator moves to close the car door, and the landing door as a driven part can only be closed by its own self-closing ability to ensure the isolation between the outside world and the hoistway and ensure safety. In general, in order to satisfy the requirement that the landing door can be automatically closed and can be opened with the car door, an elastic member is used to exert elastic force on the landing door. When the ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/46B66B13/14
CPCB66B13/14F16F1/46
Inventor 王昆陈李明黎锦章
Owner HITACHI ELEVATOR CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com