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Chassis device for electric wheelchair and electric wheelchair including same

An electric wheelchair and chassis technology, applied in transportation and packaging, vehicle rescue, patient chairs or special transportation tools, etc., can solve the problems of poor comfort experience, low comfort experience, damage to main chassis parts, etc.

Active Publication Date: 2019-02-01
PERMOBIL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the comfort experienced by the user is relatively low, as stiff springs provide poor shock absorption
In addition to the relatively poor comfort experience, there is a risk that the main chassis parts will be damaged due to their design

Method used

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  • Chassis device for electric wheelchair and electric wheelchair including same
  • Chassis device for electric wheelchair and electric wheelchair including same
  • Chassis device for electric wheelchair and electric wheelchair including same

Examples

Experimental program
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Embodiment Construction

[0024] The inventive concept will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments are shown by way of example. The inventive concept may, however, be embodied in many different forms and should not be construed as limited to the various embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and comprehensive. and fully convey the scope of the inventive concept to those skilled in the art. Like reference numerals refer to like elements throughout the specification.

[0025] attached figure 1 An example of a chassis device 1 for an electric wheelchair is shown. The chassis arrangement 1 comprises a main chassis part 3 having a first side panel 3a and a second side panel 3b. The first side panel 3 a and the second side panel 3 b form side walls of the main chassis member 3 and are located at opposite ends of the main chassis member 3 .

[0026] It sho...

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PUM

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Abstract

The present disclosure relates to a chassis arrangement (1) for an electrically powered wheelchair (35). The chassis arrangement (1) comprises a main chassis member (3) having a first side panel (3a) defining a first side of the main chassis member (3), and a second side panel (3b) defining a second side of the main chassis member (3), the second side being opposite to the first side, wherein each of the first side panel (3a) and the second side panel (3b) has spring attachment arrangements (3g, 3h) for attachment of spring assemblies (9a, 9b, 11a, 11b), wherein each of the first side panel (3a) and the second side panel (3b) has pivot arm attachment arrangements (3e, 3f) for attachment of pivot arms (5a, 5b, 7a, 7b), wherein the main chassis member (3) has a torsional stiffness greater than 1200 Nm / degree. An electrically powered wheelchair comprising a chassis arrangement (1) is also presented herein.

Description

technical field [0001] The present disclosure relates generally to wheelchairs. In particular, it relates to a chassis arrangement and an electric wheelchair incorporating the same. Background technique [0002] Power wheelchairs generally have a chassis unit or frame on which the seating system is mounted. The chassis arrangement comprises a main chassis member which can house a battery unit which in particular supplies power to the motor of the wheelchair, a pivot arm pivotally coupled to the main chassis member on which the wheels are mounted, and energy storage members such as springs , which operates with the pivot arm for controlling the suspension of the wheelchair. [0003] In existing electric wheelchairs, the main chassis member or chassis is usually made of a large number of sheet metal parts that are riveted or welded together. To keep the main chassis parts as light as possible, the sheet metal is usually very thin, typically 2-4mm. [0004] In order to be a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61G5/10A61G5/04
CPCA61G5/1078A61G5/04A61G5/042A61G5/06
Inventor E·卡尔夫P·托格森H·范德沃尔
Owner PERMOBIL
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