TWI474813B - Wheelchair with floating function - Google Patents

Description

Floating wheelchair

The invention relates to a wheelchair, and in particular to a wheelchair having a floating function.

A general wheelchair provides a suitable means for people with limited mobility or a pair of ankles. Therefore, a wheelchair is a very important means of transportation for people with limited mobility or feet.

In general, the wheelchair is usually used on the ground. However, in the rainy season, typhoon season, or rainy land, it often causes severe water accumulation, especially the flood caused by sudden heavy rain. This natural disaster is a ride on a wheelchair. However, if there is no other person assisting the evacuation or delaying the rescue operation, it will lead to the casualties of the occupants in the wheelchair. The consequences are unimaginable. If the wheelchair can be designed for amphibious use and the wheelchair body structure is not greatly modified, Simplifying the structure, and enabling the wheelchair to float in the water can overcome the above-mentioned situation, and how to effectively avoid the above-mentioned situation before the disaster is caused by the efforts of various industries and related industries for structural design and The direction of development.

Therefore, how to develop a wheelchair that can solve the above defects is the motivation for the research and development of the present invention.

It is an object of the present invention to provide a wheelchair having a floating function to avoid the death or injury of a wheelchair occupant caused by a flood.

In order to achieve the foregoing, a wheelchair having a floating function according to the present invention includes: a base frame pivotally mounted with two front wheels and two rear wheels, the base frame including a front bracket, a rear bracket, and a rear bracket a first and a second upper bracket disposed between the front and rear brackets, a first lower bracket disposed between the front and rear brackets and located below the first upper bracket, and a first bracket disposed between the front and rear brackets a second lower bracket located below the second upper bracket; a buoy fixed between the first and second lower brackets; and a first side buoy having a first pivotal pivotal connection to the first lower bracket And a first joint portion fixed or detached from the rear bracket; a first link set including a first upper link pivoted to the rear bracket, a pivoted to the first side pontoon and the first a first lower link between the upper links and at an angle to the first upper link, and a first positioning member positioned or disengaged from the first upper and lower links; a two-sided pontoon having a second pivoting portion pivoted to the second lower bracket and a second knot fixed or detached from the rear bracket a second link set, comprising a second upper link pivoted to the rear bracket, a pivotal connection between the second side pontoon and the second upper link, and the second upper link The connecting rod bends an angle of the second lower link and a second positioning member positioned or disengaged between the second upper and lower links.

The present invention has been described in connection with the preferred embodiments of the present invention in accordance with the accompanying drawings.

Referring to Figures 1 to 5, a wheelchair having a floating function is mainly provided by a base frame 10, a pontoon 20, and a dam with two front wheels 81 and two rear wheels 82. a side pontoon 30, a first link set 40, a second side pontoon 50, and a second link set 60, wherein: the base frame 10 with the two front wheels 81 and the two rear wheels 82 is pivoted, The base frame 10 includes a front bracket 11, a rear bracket 12, a first and second upper brackets 13, 14 disposed between the front and rear brackets 11, 12, and a first and second brackets 11 and 12 disposed between the base brackets a first lower bracket 15 located below the first upper bracket 13 and a second lower bracket 16 disposed between the front and rear brackets 11 and 12 and below the second upper bracket 14; wherein the front and rear A seat 83 is disposed between the brackets 11 and 12, and the front and rear brackets 11 and 12 are respectively pivotally connected to a stand 84 and a seat back 85. Since the structure of the base 10 is the same as that of a general wheelchair base structure, Further, the difference is that the two rear wheels 82 respectively have first and second pivots 17 and 18 corresponding to the first and second lower brackets 15 and 16; the first lower bracket 15 has a first fixing portion 151 and a first lower pivot portion 152 on both sides of the first fixing portion 151; the second lower bracket 16 has a second fixing portion 161 and two sides of the second fixing portion 161 a second lower pivot portion 162; the rear bracket 12 has a first upper joint portion 121 adjacent to the first upper bracket 13, a first upper pivot portion 123, and a second upper joint portion adjacent to the second upper bracket 14 122. The second upper pivot portion 124.

The pontoon 20 is fixed between the first and second lower brackets 15 and 16 and has a first assembly portion 21 fixed to the first fixing portion 151 of the first lower bracket 15 a second assembly portion 22 of the second fixing portion 161 of the second lower bracket 16 , a first ear portion 23 fixed to the first pivot shaft 17 , and a second ear portion fixed to the second pivot shaft 18 . 24. A tapered guide 25 for guiding the flow of water in the direction of travel of the wheelchair.

The first side pontoon 30 has a first pivoting portion 31 pivotally disposed on the first lower pivot portion 152 of the first lower bracket 15 and a first joint portion fixed or detached from the first upper joint portion 121 of the rear bracket 12 32. A first pivoting portion 33 is inserted into the first joint portion 32 and the first upper joint portion by a first latch 34 when the first joint portion 32 corresponds to the first upper joint portion 121. 121. The first side pontoon 30 and the rear bracket 12 are fixed to each other. When the first bolt is pulled away, the first side pontoon 30 and the rear bracket 12 are separated from each other.

The first link group 40 includes a first upper link 41 pivoted to the rear bracket 12, and a pivotal connection between the first side pontoon 30 and the first upper link 13 a first lower link 42 bent at an angle, and a first positioning member 43 positioned or disengaged between the first upper and lower links 41, 42; wherein the first upper link 41 has an upper end portion 411 pivoted to the first upper pivot portion 123 of the rear bracket 12, a first upper screw hole portion 412, and a lower end portion between the upper end portion 411 and the first upper screw hole portion 412. The first lower link 42 has a lower end portion 421 pivotally disposed on the first pivot pin 33 of the first side pontoon 30, an upper end portion 422 pivotally disposed at the lower end portion 413 of the first upper link 41, and a first lower screw hole portion 423 between the lower end portion 421 and the upper end portion 422 corresponding to the first upper screw hole portion 412, and when the first upper and lower links 41, 42 are bent by 180 degrees The first upper screw hole portion 412 is corresponding to the first lower screw hole portion 423, and the first positioning member 43 is screwed in the first screw hole portion 412 in a state as shown in FIGS. Waiting for the first upper screw hole portion 412 When the screw hole corresponding to the first portion 423, the first positioning member 43 can be positioned between the set screw.

The second side pontoon 50 has a second pivoting portion 51 pivotally disposed on the second lower pivot portion 162 of the second lower bracket 16 , and a second joint portion fixed or detached from the second upper joint portion 122 of the rear bracket 12 . 52. The second joint portion 52 is inserted into the second joint portion 52 and the second upper joint portion by a second bolt 54 when the second joint portion 52 corresponds to the second upper joint portion 122. 122. The second side pontoon 50 and the rear bracket 12 are fixed to each other. When the second bolt 54 is pulled away, the second side pontoon 50 and the rear bracket 12 are separated from each other.

The second link set 60 includes a second upper link 61 pivoted to the rear bracket 12, and a pivotal connection between the second side pontoon 50 and the second upper link 61. a second lower link 62 bent at an angle, and a second positioning member 63 positioned or disengaged between the second upper and lower links 61, 62; wherein the second upper link The upper end portion 611 pivotally disposed on the second upper portion 141 of the second upper bracket 14 , a second upper screw portion 612 , and a second upper screw portion 612 are disposed between the upper end portion 611 and the second upper screw portion 612 . The lower end portion 613 has a lower end portion 621 pivotally disposed on the second pivoting leg 53 of the second side pontoon 50, and an upper end portion 622 pivotally disposed at the lower end portion 613 of the second upper link 61. And a second lower screw hole portion 623 between the lower end portion 621 and the upper end portion 622 corresponding to the second upper screw hole portion 612, and the second upper and lower links are bent by 180 degrees. The second upper screw hole portion 612 is corresponding to the second lower screw hole portion 623, and the second positioning member 63 is screwed in the second lower screw hole portion 623 in advance, and the second upper screw hole portion 612 corresponds to the second screw hole portion 612. When the second screw hole portion 623 is used, The second positioning member 63 can be screwed between the two

The above description is the structure and configuration description of each main component of the embodiment of the present invention. As to the manner of use and the effect of the embodiment of the present invention, the following description will be made.

Referring to Figures 2 and 6, the present invention is provided with the pontoon 20 between the first and second lower brackets 15, 16 , the first side pontoon 30 disposed outside the first lower bracket 15 , and The second side pontoon 50 is disposed outside the second lower bracket 16 . Therefore, when the occupant 92 who is inconvenient or the two-legged rides on the wheelchair of the present invention and encounters water or flood, the pontoon 20 and the The buoyancy generated by the first and second side pontoons 30, 50 in the water enables a portion of the wheelchair to be brought over the water surface 91 to extend the time the wheelchair occupant waits for rescue and avoids the occurrence of the wheelchair occupant 92 being trapped below the water surface 91. The accident is that the present invention has indeed achieved the purpose of avoiding the flooding of the wheelchair occupants 92.

Referring to Figures 7 and 8, the occupant of the present invention can be freely moved without being paralyzed or injured. When the occupant of the present invention encounters water or flood, the first latch 34 can be pulled out. The first side pontoon 30 is pivoted by an angle of its first pivoting portion 31 and the first lower pivot portion 152 of the first lower bracket 15 as shown in FIG. 9. At this time, the first connection The angle between the first upper link 41 and the first lower link 42 of the rod set 40 changes accordingly. Referring to Figures 10 and 11, the first upper screw hole portion 412 of the first upper link 41 is When the first lower screw holes 423 of the first lower link 42 correspond to each other, the first positioning member 43 is rotated, and the first positioning member 43 is inserted into the first upper screw hole portion 412 and the first Between the lower screw holes 423, the angle between the first upper and lower links 41, 42 is fixed, and the first side pontoon 30 is kept in an unfolded unfolded state, and is pulled in the same operation manner. From the second latch, the second side pontoon is also pivoted to an unfolded state after being pivoted by an angle, whereby the first and second side pontoons are positioned with the pontoon A horizontal plane, so as to increase the buoyancy of the present invention is produced in the event of flood water, in order to really achieve the purpose of avoiding floods wheelchair users who casualties.

Referring to FIGS. 7-11, when the first side pontoon 30 is deployed and then reset, the resetting of the first side pontoon 30 can be completed in the reverse operation manner, that is, the first positioning member 43 is completed. Disengaging the first upper screw hole portion 412 and the first lower screw hole portion 423, the first upper link 41 and the first lower link 42 are relatively bent, and the first side pontoon 30 is pivoted The first joint portion 32 corresponds to the first upper joint portion 121 of the rear bracket 12, and finally the first bolt portion 34 is inserted into the first joint portion 32 and the first upper joint portion 121, so that The first side buoy 30 is reset, and the reset of the second side buoy 50 is the same as the reset mode of the first side buoy 30, and therefore will not be described again.

In the above, the above embodiments and the drawings are only the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, that is, the equal changes and modifications made by the scope of the patent application of the present invention should be It is within the scope of the patent of the present invention.

10. . . Base frame

11. . . Front bracket

12. . . Rear bracket

121. . . First upper joint

122. . . Second upper joint

123. . . First upper arm

124. . . Second upper arm

13. . . First upper bracket

14. . . Second upper bracket

15. . . First lower bracket

151. . . First fixed part

152. . . First lower arm

16. . . Second lower bracket

161. . . Second fixed part

162. . . Second lower arm

17. . . First pivot

18. . . Second pivot

20. . . float

twenty one. . . First set of parts

twenty two. . . Second set of departments

twenty three. . . First ear

twenty four. . . Second ear

25. . . Guide

30. . . First side buoy

31. . . First pivot

32. . . First joint

33. . . First pivot

34. . . First latch

40. . . First link set

41. . . First upper link

411. . . Upper end

412. . . First upper screw hole

413. . . Lower end

42. . . First lower link

421. . . Lower end

422. . . Upper end

423. . . First lower screw hole

43. . . First positioning member

50. . . Second side buoy

51. . . Second pivot

52. . . Second joint

53. . . Second pivot

54. . . Second latch

60. . . Second link set

61. . . Second upper link

611. . . Upper end

612. . . Second upper screw hole

613. . . Lower end

62. . . Second lower link

621. . . Lower end

622. . . Upper end

623‧‧‧Second lower screw hole

63‧‧‧Second positioning parts

81‧‧‧ front wheel

82‧‧‧ Rear wheel

83‧‧‧ seat

84‧‧‧foot stand

85‧‧‧Back of the chair

91‧‧‧ water surface

92‧‧‧ occupants

Fig. 1 is an exploded perspective view of the present invention.

Fig. 2 is a perspective assembled view of the present invention.

Figure 3 is a bottom view of the present invention.

Fig. 4 is a partially enlarged view showing the state in which the first link group is disposed between the rear bracket and the first side pontoon.

Fig. 5 is a partially enlarged view showing the state in which the second link group is disposed between the rear bracket and the second side pontoon.

Fig. 6 is a view showing a state of use of the present invention, showing a state in which the present invention floats on the surface.

Fig. 7 is a schematic view showing the operation of the present invention, showing the rear viewing state of the first buoy, the first link group and the rear bracket.

Fig. 8 is a schematic view showing the operation of the present invention, showing the front viewing state of the first measuring pontoon, the first link group and the rear bracket.

Figure 9 is a schematic view showing the operation of the present invention, showing a state in which the first measuring float pivots at an angle and the first upper link and the first lower link are bent at an angle.

Fig. 10 is a schematic view showing the operation of the present invention, showing a state in which the first upper link and the first lower link are bent by 180 degrees.

Figure 11 is a schematic view showing the operation of the present invention, showing a state in which the first upper link and the first lower link are bent at another angle of 180 degrees.

10‧‧‧ pedestal

11‧‧‧ front bracket

12‧‧‧ rear bracket

121‧‧‧The first upper joint

123‧‧‧The first upper arm

13‧‧‧First upper bracket

14‧‧‧Second upper bracket

15‧‧‧First lower bracket

151‧‧‧First Fixed Department

152‧‧‧The first lower arm

16‧‧‧Second lower bracket

162‧‧‧Second lower arm

30‧‧‧First side buoy

32‧‧‧ First Joint Department

33‧‧‧ first pivot

34‧‧‧First pin

40‧‧‧First Link Group

41‧‧‧First upper link

42‧‧‧First lower link

43‧‧‧First positioning piece

81‧‧‧ front wheel

82‧‧‧ Rear wheel

83‧‧‧ seat

84‧‧‧foot stand

85‧‧‧Back of the chair

Claims (8)

The utility model relates to a wheelchair with a floating function, comprising: a base frame with two front wheels and two rear wheels, the base frame comprising a front bracket, a rear bracket and a first and second brackets arranged between the front and rear brackets a bracket, a first lower bracket disposed between the front and rear brackets and below the first upper bracket, and a second lower bracket disposed between the front and rear brackets and below the second upper bracket, and a seat is arranged between the front and rear brackets; a buoy is fixed between the first and second lower brackets, and the buoy has a guiding portion facing the forward direction of the wheelchair; and a first side buoy having a a first pivoting portion pivotally disposed on the first lower bracket and a first joint portion fixed or detached from the rear bracket; a first link set including a first upper link pivoted to the rear bracket a first lower link pivotally disposed between the first side pontoon and the first upper link and at an angle to the first upper link, and a positioning or disengaging from the first a first positioning member between the lower links; a second side pontoon having a second pivoting portion pivoted to the second lower bracket, and a second joint portion fixed or disengaged from the rear bracket; a second link set including a second upper link pivoted to the rear bracket, a pivoted to the second side float and the second upper link a second lower link that is bendable at an angle to the second upper link, and a second positioning member positioned or disengaged between the second upper and lower links; the rear bracket has The first joint of the first side pontoon is fixed or The first upper joint portion is detached, and the first side pontoon and the rear bracket are fixed or detached from each other by a first bolt inserted or detached from the first joint portion and the first upper joint portion, and the rear bracket has a second upper joint portion for fixing or disengaging the second joint portion of the second side pontoon, the second side pontoon being inserted or disengaged from the second joint portion and the second upper joint portion by a second bolt Fix or detach from the rear bracket. The wheelchair having the floating function as described in claim 1, wherein the two rear wheels respectively have first and second pivots disposed on the first and second lower brackets. The wheelchair having a floating function as described in claim 2, wherein the first lower bracket has a first fixing portion, the second lower bracket has a second fixing portion, and the buoy has a fixing portion a first assembly portion of a fixing portion, a second assembly portion fixed to the second fixing portion, a first ear portion fixed to the first pivot shaft, and a second fixing portion fixed to the second pivot The second ear of the shaft. The wheelchair having a floating function according to claim 1, wherein the first lower bracket has a first lower pivot portion for pivoting the first pivot portion of the first side pontoon, and the second lower bracket has a a second lower pivot portion pivotally connected to the second pivot portion of the second side pontoon. The floating water-operated wheelchair of claim 1, wherein the first upper link has an upper end portion pivoted to the first upper bracket, a first upper screw hole portion, and one at the upper end The lower end between the portion and the first upper screw hole The first lower link has a lower end portion pivoted to the first side pontoon, an upper end portion pivoted to the lower end portion of the first upper link, and a lower end portion and the upper end portion And corresponding to the first lower screw hole portion of the first upper screw hole portion, the first positioning member is positioned or separated from the first upper and lower screw hole portions. The wheelchair having a floating function as described in claim 5, wherein the rear bracket further has a first upper pivot portion for pivoting the upper end portion of the first upper link, and the first side float has a more a first pivoting arm pivotally connected to the lower end of the first lower link. The wheelchair having a floating function according to claim 1, wherein the second upper link has an upper end portion pivoted to the second upper bracket, a second upper screw hole portion, and a upper end portion a lower end portion between the portion and the second upper screw hole portion, the second lower link has a lower end portion pivoted to the second side pontoon, and an upper end portion pivotally disposed at a lower end portion of the second upper link, And a second lower screw hole portion between the lower end portion and the upper end portion corresponding to the second upper screw hole portion, the second positioning member being positioned or disengaged from the second upper and lower screw hole portions. The wheelchair having a floating function according to claim 7, wherein the rear bracket further has a second upper pivot portion for pivoting the upper end of the second upper link, and the second side float has a more a second pivoting arm pivotally connected to the lower end of the second lower link.