TW201900131A - Wheelchair structure for assisting in standing up capable of supplying a supporting force by lifting armrests to assisting a rider of the wheelchair in standing up - Google Patents

Abstract

A wheelchair structure for assisting in standing is provided. The wheelchair is pivotally provided with a seat plate, controlled by a transmission mechanism and capable of rotating downward, on a front side at the bottom of a backrest plate. The two sides of the backrest plate are respectively provided with an armrest. A supporting frame is provided vertically on each of the two sides of the wheelchair for assembling and positioning the backrest portion and the seat plate. The bottom of the supporting frame is provided with a base having rear wheels on two sides at the rear. The front side is provided with a footrest having a through hole for pivotal penetration of a steering mechanism having a supporting rod, enabling the supporting rod to pivotally rotate freely along the through hole. A steering rod and a linkage plate having front wheels on two sides are respectively arranged on the top end and the bottom end of the supporting rod for the rider to control the travelling direction of the wheelchair. A switching device, capable of linearly ascending and descending and having electric rear wheels and driving motors, is disposed on the rear section of the base. A transmission mechanism is provided with linkage rods controlled by the transmission motor and the linkage rods are assembled with the seat plate and the armrests so as to synchronously drive the seat plate to rotate and collapse and the armrests to linearly ascend and descend. As a result, when the rider desires to stand up and leave the wheelchair, a supporting force can be supplied by lifting the armrests, thereby achieving the purpose of assisting in standing up.

Description

Auxiliary standing wheelchair structure

The invention relates to a wheelchair structure for assisting standing; the utility model relates to a transmission mechanism of a linkage rod between the armrest of the wheelchair and the seat plate, so that the wheelchair can use the transmission mechanism to drive the seat plate to be closed down when starting. The occupant can slowly disengage from the seat plate, and at the same time, the linkage bar will move the armrests on both sides of the wheelchair to rise straight, so that the occupant's hands can reach the best use state of supporting the standing by the rise of the handrail.

According to the traditionally known wheelchair technology, such as the structural design disclosed in Taiwan Patent No. M537894 and No. I577363, substantially a large tire and a push-pull chair are provided on both sides of the wheelchair for traveling, which is not only cumbersome in storage. In terms of space and operation, it is also necessary to rely on the caregiver to push. Even if the pushers on both sides of the wheelchair can be pushed forward by the occupants, it is still difficult to use, and when the occupant wants to leave the wheelchair, there is no auxiliary standing. Under the function, it can only rely on the support of the caregiver. Once the caregiver is weak and inadvertently collapsed during the support process, it will cause a secondary injury accident, which in turn will not provide more suitable needs for the occupants and caregivers. The effect.

The main object of the present invention is to provide a wheelchair structure for assisting standing. The wheelchair is provided with a linkage mechanism between the armrest and the seat plate, so that the wheelchair can drive the seat plate to be folded down by the transmission mechanism. The occupant can slowly disengage from the seat plate. At the same time, the linkage bar will move the armrests on both sides of the wheelchair to rise straight, so that the occupant's hands can be used to support the best use of the standing by the rise of the handrail. status.

A secondary object of the present invention is to provide a wheelchair structure for assisting standing. The wheelchair has a through-hole pedal on the front side of the base for pivoting a steering mechanism of the strut, so that the strut can be freely opened. Pivoting and rotating, a directional rod and a linkage plate with front wheels on both sides of the struts are respectively provided for the occupant to control the direction of the wheelchair, so that the occupant can easily and accurately operate the direction of the wheelchair. .

Another object of the present invention is to provide a wheelchair structure for assisting standing. The wheelchair is provided with a switching device for linearly lifting up and down the electric rear wheel and the driving motor on the rear side of the base. When the motor of the switching device drives the driving motor and When the electric rear wheel is lowered into contact with the ground, the occupant can electrically travel. When the motor of the switching device drives the driving motor and the electric rear wheel rises straight and leaves the ground, the wheelchair can be provided by the support of the front wheel and the rear wheel. The caregiver or caregiver walks forward so that the wheelchair can provide an intimate design for the occupant and the caregiver to select electric or walking versatility by means of the switching device.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , the present invention provides a multi-functional wheelchair structure for assisting standing, wherein the wheelchair 10 is provided with a back plate 11 for backrest, and the front side of the back plate 11 is pivoted at the front side. A plate 12 is provided for riding, and an armrest 13 is disposed on each side of the backboard 11 for the occupant's hand to abut. A bracket 14 is vertically disposed on both sides of the wheelchair 10 for the backrest portion 11 and the seat plate 12 group. The bottom of the bracket 14 is provided with a base 15 which is a horizontal frame. The rear side of the base 15 is symmetrically arranged with a rear wheel 151. The front side is provided with a pedal 152. The middle of the pedal 152 is provided with a through hole 153 and a steering. The mechanism 16 is matched. The steering mechanism 16 is provided with a through rod 161 vertically pivoting through the through hole 153 of the pedal 162, so that the strut 161 can be pivotally rotated by the through hole 153 at the top end and the bottom end of the strut 161. A directional rod 162 for the occupant and a linkage plate 164 having a front wheel 163 on both sides are disposed horizontally. The pedestal 15 is provided with a switching device 17 on the rear side of the pedestal 15. The switching device 17 is provided with a screw 171. a motor 172, and a slider 174 having a screw hole 173 is screwed with the screw 171 The slider 174 can be linearly raised or lowered with the forward and reverse rotation of the screw 171, and a driving motor 176 with an electric rear wheel 175 is fixed to one side of the slider 174, so that the slider 174 can follow the screw 171. The positive and negative rotations synchronously drive the drive motor 176 and the electric rear wheel 175 to rise or fall linearly. When the electric rear wheel 175 is in the lowered position, the front wheel 163 and the rear wheel 151 abut against the ground, and the wheelchair 10 is supported. 14 The lower group is provided with a transmission mechanism 18 for synchronously driving the seat plate 12 to be vertically rotated and folded and the armrest 13 is linearly lifted and lowered. The transmission mechanism 18 is provided with a sector gear 181 symmetrically on both sides of the seat plate 12, and is provided with a side surface. The shaft 183 having the gear 182 is engaged with the sector gear 181. The shaft 183 is controlled by a transmission motor 183. The inner side of the bracket 14 is provided with a slide rail 141 for linearly displaceing the armrest 13 up and down. And the relative position of the sector gear 181 is provided with a linkage rod 184, so that the seat plate 12 and the armrest 13 are simultaneously supported by the linkage rod 184. The armrest 13 can be set to be positioned downwardly, and the backrest 11 of the wheelchair 10, The seat plate 12, the bracket and the base 16 can be set as aluminum frames or Board.

Referring to FIG. 4 and FIG. 4A, in use, when the motor 172 of the wheelchair 10 activates the switching device 17 drives the screw 171 to rotate, the slider 174 is linearly lowered until the electric rear wheel 175 abuts against the ground, and the driving motor 176 is The electric rear wheel 175 is driven by the driving motor 176 to synchronously drive the rear wheel 151 and the steering wheel 16 to rotate the front wheel 163 so that the wheelchair 10 can be electrically driven. At this time, the occupant's foot can be placed on the pedal 152. Both hands can hold the steering rod 162 of the steering mechanism 16 to turn left or right in the direction of the destination (please refer to FIG. 5 and FIG. 6), so as to drive the strut 161 to rotate the control hole 163 through the hole 163. And the direction in which the front wheel 163 advances, so that the occupant can easily and accurately operate the direction of travel of the wheelchair 10;

Referring to FIG. 7 and FIG. 7A, the wheelchair 10 is driven when the motor 172 of the switching device 17 drives the screw 171 to rotate in the other direction to cause the slider 174 to drive the driving motor 176 and the electric rear wheel 175 to rise straight and off the ground. By the support of the front wheel 163 and the rear wheel 151, the occupant or the caregiver can be provided to walk forward, so that the wheelchair 10 has both the electric and pedestrian multifunctional design by the switching device 17.

Referring to FIG. 8 and FIG. 9 , when the occupant wants to stand, the transmission motor 183 of the transmission mechanism 18 can drive the gear 182 of the shaft 183 to rotate downward. At this time, the sector gear 181 is caused by the gear 182. The occlusal direction is rotated upwards in the opposite direction to drive the seat plate 12 to be folded down, so that the occupant can slowly disengage from the seat plate 12. At the same time, the linkage bar 184 rotates with the sector gear 181 to move the armrests on both sides. The slide rails 141 of the 13-stay bracket 14 are linearly raised for the occupant's hands to support the auxiliary standing by the rise of the armrests 13.

In summary, when the invention is industrially usable and progressive, and the invention is not found in any publication, it also has novelty. When complying with the provisions of the patent law, the invention patent application is filed according to law, and the review committee member is invited. The quasi-patent is a prayer.

The above is only the possible embodiments of the present invention, and is not intended to limit the scope of the present invention; that is, the equivalent variations and modifications made by the scope of the present invention should still belong to the present invention. Within the scope of coverage.

10‧‧‧ Wheelchair

11‧‧‧Backboard

12‧‧‧ seat board

13‧‧‧Handrail

14‧‧‧ bracket

15‧‧‧Base

151‧‧‧ Rear wheel

152‧‧‧ pedal

153‧‧‧through hole

16‧‧‧Steering mechanism

161‧‧‧ poles

162‧‧‧ Directional Rod

163‧‧‧ front wheel

164‧‧‧ linkage board

17‧‧‧Switching device

171‧‧‧ screw

172‧‧‧Motor

173‧‧‧ screw holes

174‧‧‧ Slider

175‧‧‧Electric rear wheel

176‧‧‧Drive motor

18‧‧‧Transmission mechanism

181‧‧‧ sector gear

182‧‧‧ Gears

183‧‧‧ shaft

184‧‧‧ linkage rod

Figure 1 is a perspective view of the present invention. Figure 2 is a perspective view of the rear side of the wheelchair of the present invention. Figure 3 is a side plan view of the wheelchair of the present invention. Fig. 4 is a diagram showing the operation of switching the electric state of the switching device of the present invention. Fig. 4 - A is a partially enlarged view of Fig. 4 of the present invention. Fig. 5 is a schematic view showing the operation of the steering mechanism of the present invention. Figure 6 is a schematic view of the operation of the steering mechanism of the present invention. Fig. 7 is a diagram showing the operation of switching the walking state of the switching device of the present invention. Figure 8 is a diagram showing the action of the transmission mechanism of the present invention in an auxiliary standing state. Fig. 8 - A is a large part of the branch of the eighth drawing of the present invention. Fig. 8 - A is a side view plane operation diagram of Fig. 8 of the present invention.

Claims (5)

The utility model relates to a wheelchair structure for assisting standing. The wheelchair is fixed on a front side of a bottom plate of a backboard, and a seat plate controlled by a transmission mechanism can be pivoted downward. Each side of the backboard is provided with an armrest, and one side of the wheelchair is vertically disposed. The bracket is set for the backrest portion and the seat plate group, the bottom of the bracket is provided with a base having a rear wheel on both sides of the rear, and the front side is provided with a through-hole pedal for pivoting a steering mechanism of the strut, so that the bracket The strut can be pivotally pivoted freely, and a directional rod and a linkage plate with front wheels on both sides of the struts are respectively arranged to control the direction in which the wheelchair travels, and the rear side frame of the pedestal is provided with a The linear up-and-down lifting has a switching device for the electric rear wheel and the driving motor, and the transmission mechanism is provided with a linkage rod controlled by the transmission motor, and the linkage rod is combined with the seat plate and the armrest to synchronously drive the lower plate of the seat plate. The handrail is lifted in a straight line so that the handrail of the wheelchair is supported by the support when it is lifted up. An assisted standing wheelchair structure according to claim 1, wherein the base of the wheelchair is set to a horizontal frame. An auxiliary standing wheelchair structure according to claim 1, wherein the wheelchair switching device is provided with a screw motor, and a screw hole slider is screwed to the screw to make the slider It can rise or fall linearly with the positive and negative rotation of the screw, and one side of the slider is fixed to the driving motor of the electric rear wheel, so that the slider can synchronously drive the driving motor and the electric motor with the positive and negative rotation of the screw. The wheel rises or falls straight. An auxiliary standing wheelchair structure according to claim 1, wherein the transmission mechanism of the wheelchair is symmetrically provided with a sector gear on both sides of the seat plate, and a shaft and a sector gear having gears on both sides are provided. The shaft is controlled by the transmission motor, and the inner side of the bracket is provided with a slide rail for linear displacement of the armrest. The linkage rod is disposed at the opposite position of the two armrests and the sector gear, so that the seat plate and the armrest are simultaneously linked. Support positioning of the rod. An auxiliary standing wheelchair structure according to claim 1, wherein the backrest, the seat plate, the bracket and the base of the wheelchair can be set as an aluminum frame or an aluminum plate.