Chassis arrangement for an electrically powered wheelchair and an electrically powered wheelchair comprising the same

A technology for electric wheelchairs and chassis, which is applied in transportation and packaging, vehicle rescue, patient chairs or special transportation tools, etc. It can solve the problems of main chassis component damage, poor shock absorption, and low comfort, and reduce damage risk effect

Active Publication Date: 2017-08-18
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 will be relatively low because the stiff springs provide poor shock absorption
In addition to the relatively poor comfort experience, the risk is that the main chassis components may be damaged due to their design

Method used

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  • Chassis arrangement for an electrically powered wheelchair and an electrically powered wheelchair comprising the same
  • Chassis arrangement for an electrically powered wheelchair and an electrically powered wheelchair comprising the same
  • Chassis arrangement for an electrically powered wheelchair and an electrically powered wheelchair comprising the same

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Embodiment Construction

[0023] The inventive concept will now be described more fully hereinafter with reference to the accompanying drawings in which illustrated embodiments are shown. However, inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete and fully convey inventive concepts range to those skilled in the art. Throughout the invention, like references refer to like elements.

[0024] figure 1 An example of a chassis device 1 for an electric wheelchair is shown. The chassis arrangement 1 includes a main chassis member 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 positioned at opposite ends of the main chassis member 3 .

[0025] It should be noted that each of the first side plate ...

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PUM

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Abstract

The disclosure relates to a chassis arrangement (1) for an electric wheelchair (35). The chassis arrangement (1) comprises a main chassis member (3) having a first side plate (3a) defining a first side of the main chassis member (3) and a second side defining the main chassis member (3) The second side plate (3b), the second side is opposite to the first side, wherein both the first side plate (3a) and the second side plate (3b) have a spring assembly (9a, 9b, 11a, 11b) The spring attachment device (3g, 3h), wherein both the first side plate (3a) and the second side plate (3b) have pivots for attaching pivot arms (5a, 5b, 7a, 7b) Boom attachment means (3e, 3f), wherein the main chassis member (3) has a torsional stiffness greater than 1200 Nm/degree. The present invention also provides an electric wheelchair comprising a chassis device (1).

Description

technical field [0001] The present disclosure generally relates to wheelchairs. In particular, it relates to a chassis arrangement and an electric wheelchair comprising such a chassis arrangement. Background technique [0002] Power wheelchairs typically have a chassis unit or frame on which the seating system is mounted. The chassis arrangement may comprise: a main chassis member which, among other things, may house a battery unit which powers the motor of the wheelchair; a pivot arm pivotally coupled to the main chassis member to which the wheels are mounted and an energy storing member, such as a spring, which operates with the pivot arm for controlling the suspension of the wheelchair. [0003] In existing power wheelchairs, the main chassis member or chassis is typically made from multiple sheet metal parts that are riveted or welded together. The sheet metal is usually very thin, typically 2-4mm, in order to keep the main chassis members as light as possible. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61G5/04A61G5/06
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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