Base apparatus for electric wheel-chair
An electric wheelchair and chassis technology, which is applied in transportation and packaging, vehicle rescue, patient chairs or special transportation tools, etc., can solve problems such as taking a long time, achieve improved stability and comfort, and small displacement changes Effect
Inactive Publication Date: 2010-07-21
KYMCO
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Problems solved by technology
[0014] When the above-mentioned chassis device 1 crosses obstacles, the front roller 115 and the front wheel connecting section 113 are mainly displaced upwards to drive the front frame device 11 to tilt and pivot, and by the stretching and returning action of the elastic recovery device 16, Directly forcing the rear frame device 12 to move upwards can complete the process of crossing the barrier. Therefore, when crossing the barrier, the displacement of the front roller 115 (i.e. the height of the obstacle) is directly transmitted to the occupant through the rear frame device 12, so The occupant must endure the larger bumps; in addition, in order to force the rear frame device 12 to move upwards to complete the process of crossing obstacles, a larger energy must be supplied to overcome the weight of the rear frame device 12 itself and the rear frame device 12 (i.e. the common weight of the riding device and the occupant) can be completed, which has also caused the chassis device 1 to spend a long time (referring to Figure 4 shown) to complete the entire obstacle-crossing process
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[0035] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings.
[0036] Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.
[0037]Referring to Fig. 5, a chassis device 2 of an electric wheelchair according to the present invention can be equipped with a ride device (not shown) for riding, including a first frame device 21, a second frame device 22, The 3rd vehicle frame device 23, drive wheel vehicle frame device 24, fork-shaped vehicle frame device 25, the first elastic return device 26, and the second elastic return device 27, and the front wheel device 28 that is pivotally connected with these devices respectively With rear wheel arrangement 29.
[0038] The first frame device 21 is slightly inverte...
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A chassis-structure for the electric wheel chair with high stability and comfortableness is composed of a linkage unit consisting of the first, the second and the third main frames, driving wheel frame unit, and fork frame unit, the front wheel unit, and the back wheel unit, all of which are pin-jointed.
Description
【Technical field】 [0001] The invention relates to a chassis device, in particular to a chassis device of an electric wheelchair. 【Background technique】 [0002] For people with neuromuscular disease, elderly people with functional degeneration, physical disabilities and chronic patients who lack independent mobility, electric wheelchairs are one of the auxiliary tools used in daily life; and because the general road surface has Various situations with ups and downs, such as stairs, or raised obstacle roads, etc., so electric wheelchairs must have the ability to cross obstacles. [0003] When riding an electric wheelchair to cross obstacles, the overall center of gravity offset between the occupant and the electric wheelchair will cause the load value of each roller (front, rear roller, and driving wheel) of the electric wheelchair to change, and when the load value of each roller is seriously uneven (that is, when the center of gravity shifts beyond the range of the chassis...
Claims
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IPC IPC(8): A61G5/10
Inventor 陈永新廖永渊
Owner KYMCO