JPH06502566A - Tapered swinging footrest - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Background of the invention of the tapered swinging footrest TECHNICAL FIELD The present invention relates to a chair, and particularly relates to a footrest of a wheelchair. Can be applied in combination with chairs. Such chairs are suitable for elderly people and Often used by restricted people, it is used to move around shopping malls etc. It lacks durability. Although the description relates to a lightweight wheelchair, the present invention is applicable to other Can be used in wheelchairs or devices that require leg support. That will be recognized.

Known foldable wheelchairs with footrests have a flat side frame. A footrest bracket is used that extends in a plane parallel to the plane. In other words , the conventional foldable wheelchair footrest is either conventional pivot type or ``Similar to swing-away footrests, wheelchair side frames It has a bracket that extends forward and downward from the frame, allowing the patient to sit in a wheelchair. The patient's lower limbs are separated, creating a gap between the patient's legs. patient controls wheelchair Because the patient's feet, lower legs, and knees sometimes hit objects when It has been found that the structure of the rest is not unique. In addition, the wheelchair can be rotated half a turn. diameter is greater than that due to the total length of the wheelchair caused by the forward-extending footrest. I hear it. In addition, foldable wheelchairs and traditional pivoting feet The conventional footrest structure found in rests consists of a seat part and a footrest part. The distance between the two ends forms an angle of approximately sixty degrees (60°). This angle is taken while seated in a wheelchair. It is not necessarily the best option for certain patients. A twist of about 70 degrees (70°) A steeper angle is more comfortable for the patient. However, operating a wheelchair while the front wheel of the wheelchair is touching the footrest bracket of the wheelchair or the patient's heel. Because of this steeper angle, it may hit a traditional collapsible wheelchair. and swing-away footrests. It is Noh. In other words, the front wheel is seated on the footrest bracket or chair. It directs the patient's foot toward the side frame of the wheelchair. Limited by how close you can get.

Therefore, it is important to develop new and improved footrest structures, especially for wheelchairs. It is believed that it is desirable that the above-mentioned problems be overcome. better and more unique results can be obtained overall.

Overview of the three alliances The present invention provides a new and improved collapsible wheelchair.

More specifically, in the present invention, the wheelchair includes a pair of side frames and a Connect the side frames to selectively place the side frames in the folded position. Folding hand that allows the user to guide the device and move it away into the working position It has steps. A pair of footrest brackets are on the side frame. attached to one side. Each bracket is spaced apart from the side frame and two, curved inwardly toward each other. A pair of footrests pivot Each footrest bracket is attached to one side of the footrest bracket by means of The trests are horizontally oriented to receive the operator's legs and the chair is moved forward, respectively. The chair can be folded up close and selectively rocked between vertical and forward orientations. substantially parallel first and second elongate side frame members extending rearwardly from the rear; Equipped with a link member that is connected between the side frames to form a stable seat. ing. A pair of rear wheels are provided, the first mounting being by means of a respective side attached to one side of the frame. A pair of front wheels are provided, and the second installation is by hand. Each stage is mounted on one side of the side frame, spaced apart from the rear wheel. I'm being kicked. A first footrest bracket extends downwardly from the first frame. It hangs down and is tilted inward and attached. second footle The strike bracket hangs downward from the second side frame and extends inside. It is mounted and tilted towards the side. For this reason, the footrests should be placed at an angle to each other. is doing. The first footrest platform is configured to support a first footrest platform. The second footrest plate is attached to the footrest so that it can pivot freely. The rat platform is pivotably attached to the second footrest bracket. I'm being kicked.

Other embodiments of the invention include folding and folding for storage and handling. A wheelchair is provided that is both foldable and openable when in use.

More specifically, in this embodiment of the invention, the wheelchair includes a pair of opposed first and second frame members and first and second frame members It has a sheet structure connected between. First and second side frames The folding means connecting the side frames selectively move the side frames into the folded position. , can be moved into the operating position so as to be guided together and separated. a pair of Footrest brackets are each attached to the side frame.

Each bracket is spaced apart from the side frame and directed inward toward each other. It is curved. A pair of footrest platforms are provided, each with a footrest platform. It is pivotably attached to one side of the bracket.

One of the advantages of the present invention is that the present invention provides a new and improved folding wheelchair. There are many things.

Another advantage of the invention is that the chair can be easily accessed by the patient. with a pair of inwardly tapered footrests that allow The goal is to provide wheelchairs.

Yet another advantage of the invention is that they are spaced apart from the side frame to which they are fixed. Folding wheelchair with footrest brackets curved inwardly toward each other It is about providing children.

Yet another advantage of the invention is improved folding with a smaller turning radius. The goal is to provide wheelchairs.

Yet another advantage of the invention is that the legs of the person sitting on the chair are moved closer together, The purpose is to provide a folding wheelchair that protects from injury.

A still further advantage of the present invention is that the legs of the patient are It can be lowered somewhat more vertically towards the vicinity of the ground supporting surface than in the ground. Folds to provide a more comfortable position for seated patients by allowing the The goal is to provide wheelchairs for people with disabilities.

Yet another advantage of the present invention is that it can be easily removed from a chair, such as a wheelchair, or Further features and eleven features of the invention will be apparent to those skilled in the art from the following details: It will become clear by reading and understanding the explanation.

9 drawings of pure pleasure The drawings shown herein are for the sole purpose of illustrating preferred embodiments of the invention. and shall not be construed as limiting the invention. Here, number 1 is a perspective view of the wheelchair according to the invention; FIG. 2 is a perspective view of the wheelchair according to the invention; 3 is a front view of the footrest bracket; FIG. 3 is a side view of the footrest bracket of FIG. 4 is a top view; FIG. 4 shows a portion of the frame and footrest of the wheelchair shown in FIG. It is an enlarged side view of the racket; 5 is a top view of the hinge bracket assembly of FIG. 4; FIG. 6 is a top view of the hinge bracket assembly of FIG. 4 is a sectional view taken along line 6-6 of the sector body of FIG. 4; FIG. 7 is a cross-sectional view of the wheelchair shown in FIG. Figure 8 is a front view of the wheelchair of Figure 1 in the folded position; Figure 9 is an enlarged perspective view of the 7-piece rest extension tube and footrest member in Figure 1. The diagram is: FIG. 10 is a photograph showing a perspective view of the wheelchair of FIG. ; Figure 11 is Figure 7 Figure 12 is a photograph showing the front of the wheelchair in Figure 8; True.

detailed 98 Preferred embodiments of the invention are shown for purposes of illustration only and not for limitation. Referring to the drawings, FIG. 1 shows a pair of identical side frames A and a pair of The vehicle has a front wheel assembly B connected to the front portion of the side frame of the vehicle. Also , a footrest assembly C is connected to the front part of the side frame. Ru. Folding mechanism D (see Figure i7, selectively accommodates the side frame) - Can be moved together for handling and handling. C1-E supports the operator do. In addition, similar to the rear wheel G fixed toward the rear of the side frame, A mulrest assembly F is provided.

Continuing to refer to FIG. 1, the Sidera 1 gnome is made of aluminum, Relatively thin-walled, lightweight metal tubing such as magnesium, titanium, and their alloys It is assembled from scratch. Also, thin-walled steel pipes may be used. left and right side The side frames are identical, so only one side frame will be described in detail. It will be appreciated that the other side frames have the same structure.

The side frame includes a box-like, rigid, generally rectangular tube assembly 10. side A front wheel assembly B is attached to the lower end 12 of the tube 14 in front of the frame assembly 10. is attached. At the upper end 16 of the front tube 14 there is a foot support or footrest. Strike C is attached.

Referring to FIG. 4, the foot support C is attached to the hinge bracket 22. The top mount includes a member or bracket 20. plastic latch Preferably, housing 24 is adapted to mount bracket 22.

A plastic pivot 26 fits into the upper horizontal portion 28 of the bracket 20. Preferably, it is attached by means of a fastener 30. The pivot is forward It extends to the open end 32 of the upper end 16 of the tube 14 . Connect the plug 34 to the self of the portion 28. The section 28 can be sealed at the opposite end. The upper end 28 of the tube is hinged. It is understood that it extends along an axis parallel to the racket 22.

As shown in FIG. 5, the latching housing 24 It has a torsion spring 40 attached to the spring. One end of the spring has a latch It cooperates with a latch member 44 pivotally mounted to the housing 24. It is installed like this. The second end 46 of the spring 40 is attached to the rear of the housing 24. It is supported by a block 48. A latch member 44 is attached to one end of member 42. It has a handle 50. The torsion spring 40 is attached to the latch housing 24. mounted on a stop 52 extending through a suitable vertical hole 54 provided therein. ing. A stop 52 is attached to the launch housing 24. latch part A suitable hole 56 is provided in the lug to allow the material to be pivoted into the stop 52. and extends through the catch member 44 . Sector 58 cooperates with latch housing 24. The latch housing 24 is pivotably mounted on the sector 58. It is attached. Referring to FIG. 6, the sectors include side frame assemblies. It is clamped to the tube 14 in front of the lO. The sector has a substantially vertical hole 61. A suitable stepped screw 62 extends through the bore 61. proper natsu The stepped screw 62 is attached to a predetermined position on the sector 58 by the step 63. I'm being kicked.

Suitable fasteners are used to attach sector 58 to tube 14 at the front of the frame member. 65 drains aligned horizontal holes 64 and sectors 58 through the frame. It extends through a similar hole 66 which extends in a square direction. Footrest assembly C A latch is provided at the opposite end of the handle 50 to lock the handle 50 in place. It has an arcuate surface 68 that cooperates with a stepped screw 62. Chair The footrest assembly C will not move until the person sitting on the seat wishes to move it. The latch 44 is spring-biased in this position by a torsion spring 40 to be done. However, the handle of the latch member 44 or the manual release lever 5 0 against the force of the torsion spring 40, the latch member and stepped screw 6 The engagement with 2 can be released.

When the latch member 44 is disengaged from the stepped screw 62, the hinge Footrest assembly C with bracket 22 and latch housing 24 moves from the seat part E of the wheelchair on the pivot member 26 to the sector 58. Pivot outward and away. In other words, the stop of this assembly The part is the sector 58 attached to the side frame A, and this part around which the latch member 44 pivots, similar to the latch housing 24. It has a stepped screw 62 that rotates. Outside (outboard position) Sometimes, relative to the locked position of the latch member 44 and stepped screw 62, It reaches an angle of approximately 90°. When in this position, move the pivot 26 forward. The footrest is disengaged from engagement with the open end 32 of the upper end 16 of the tube 14. Simply lift the assembly vertically upwards to remove the entire footrest assembly C. can be easily removed from the wheelchair. Therefore, the footrest of the present invention The assembly can be pivoted out of the way (as desired). If present, it can be easily removed from the wheelchair. Latch member 44 and stepped screen Simply rotate the pivot 26 in a direction approximately perpendicular to the associated locking position of the , is similarly easily reattached by returning it to the open end 32 of the anterior tube 14. be able to.

Additionally, the footrest assembly and shoulders shown in FIG. When you sit down, you should notice that it is on the left side of the wheelchair - fJll. The right hand side is It becomes a mirror image of the left hand side. In other words, sector 58 is always the seat part of the chair. E, and the handle 50 must always be oriented outwardly away from the , must be located on the outside (outboard) of the frame member. This is For example, as shown in FIGS. 7 and 8. The latch assembly of the present invention , the foot assembly C faces straight forward, or the torsion spring 40 pressing the manual release lever 50 of the latch member 44 biased by the to avoid contact with the stepped screw 62 by swinging it out of the way. and separate the leg support assembly from the seat E on the pivot member 26. It can be pivoted outward to

Referring to FIGS. 2 and 3, the upper foot support is mounted on the bracket 20. includes an upper portion 28 and a lower portion connected to each other by a central portion 84, as previously described. 82. These three parts are created with a song for each, as follows: I'm getting lost. Between the upper part 28 and the central part 84, within the vertical plane shown in FIG. It is bent approximately seventy degrees (70°). Moreover, between the central part 84 and the lower part 82 2, it is bent approximately 30 degrees (30 degrees) within the horizontal plane shown in FIG. The result As a result, as shown, the centerline of the lower end 82 of the bracket 20 is displaced inwardly from the centerline of the top end 28 of the top. This inward displacement is the desired If there is, it can be made to about 1.5 inches. By bending 70 degrees (70') The seat rest C approaches the seat part E of the chair, thereby causing the wheelchair to A smaller turning radius results. Additionally, the legs of the sitter may shift toward each other. This means that the legs, especially the knees and feet, are close together and that the sides of the wheelchair are close together. This allows the sides of the wheelchair to move away from any obstacles it encounters, making it easier to This is advantageous from the standpoint of protecting the legs of children who are traveling with children.

100 (Fig. 349) can be fixed there with a bolt or the like (as shown). ing. Bolts etc. should be inserted into the hole 102 in the extension tube 100 and the hole in the bracket 20. 92. Three such holes 92 are provided at the lower end of the bracket. The hole 92 allows the footrest of the wheelchair to be seated thereon. Preferably, the device is adjustable to suit different leg lengths of those who use the device. paraphrase If so, the footrest extension tube has the number of holes 92 provided in the lower end 82 of the bracket The mounting is at the lower end of the bracket, with a degree of nested acceptance limited by Can be nested in 2.

As shown in FIG. 9, a substantially U-shaped tubular footrest member 110 is provided with a suitable stop. The mounting bracket 112 is connected to the mounting bracket 112 by means of the mounting bracket 112. It is attached to the extension tube 100 by a stopper. A substantially U-shaped member 110 and The bracket 112 is the same for both left and right footrests, but Their interconnections are reversed one hundred and eighty degrees (180°).

A molded plastic footrest 120 slides down the entire U-shaped tube 110. Preferably, it can be fixed thereto by the post 122. foot A support strap 124 is inserted over the extension tube 100 and the post 100. Acceptable in child form. The post 122 is attached symmetrically to the U-shaped portion 110. The footrest cover 120 can be attached to either the right or left side. It can also be used.

As shown in Figure 7, by being bent 30 degrees (30°) in the horizontal plane. , with the footrest 110 facing the center line of the chair and facing the side frame IO. It can be displaced in a direction away from the center. Also, such a displacement may cause the front A seventy degree (70') bend between the top 28 and the middle section 84 as described is provided. . Its seventy degree (70°) bend allows the lower frame member lOO or seat The person's heels are exposed and are struck by the front wheels B when rotating the wheelchair. At the same time, the legs of the person sitting can be positioned more comfortably.

With the wheelchair in the extended and operational position, as shown in Figure 1, The feet of participants can be moved closer together in a more comfortable stance that protects the legs. becomes. In addition, the wheelchair in this position improves the turning radius of the wheelchair and By providing a better angle between the owner's lower legs and thighs, Helps position the legs more comfortably. Provides all of these benefits while 8, the footrest is attached to the U-shaped foot support part 1, as shown in FIG. 10 by simply pivoting it to a vertical position in line with the lower bracket portion 100. By rotating it, it can be adapted to the folding of the wheelchair. moreover, To seat the patient in the chair, remove the entire footrest assembly from the seating position. It can be pivoted outwardly. Additionally, the footrest The entire assembly can be easily removed from the chair and reinstalled. can.

Although the invention has been described by reference to a preferred embodiment, reading this specification By reading and understanding, third parties will easily come up with modifications and changes.

Nothing herein comes within the scope of the appended claims or their equivalents. It goes without saying that such changes and modifications are also included in the present invention.

Claims (14)

[Claims] 1. A pair of side frames, connecting the side frames and selectively placing the side frames in a folding position; Folds that can be moved into the operating position so that they are guided together and separated. a folding means; each attached at a first end to the side frame; a pair of footrests spaced apart from the system and curved inwardly toward each other; stop bracket and each by means of pivoting a second end of one of said footrest plackets. horizontal orientation that accepts the operator's legs and allows the chair to approach the front. The chair can be folded selectively between vertical and vertical orientations, respectively. A folding wheelchair characterized by being equipped with a pair of swingable footrests. 2. The folding means each have an upper end and a lower end, both pivoting. A claim characterized by having a pair of cross members rotatably attached. Wheelchairs listed in item 1 of the scope of request. 3. Furthermore, a pair of front wheel assemblies attached to the side frame; attached to the side frame and spaced apart from the front wheel assembly; and a pair of rear wheel assemblies located at the rear wheel assembly. Wheelchair listed. 4. Furthermore, a flexible sheet member attached between the pair of side frames and, and a flexible backrest member attached between the pair of side frames. The wheelchair according to claim 1, characterized in that: 5. Furthermore, attach the footrest placket and attach the side frame. and means for providing pivoting movement about an axis parallel to a plane extending therethrough. The wheelchair according to claim 1, characterized in that: 6. substantially parallel first and second elongations extending from front to back along each side of the chair; a side frame member, a link member connected between the side frames to form a stable seat; , a pair of rear wheels; a first attachment means for attaching each of the rear wheels to one of the side frame members; step by step, A pair of front wheels, Each of the front wheels is mounted on one of the side frame members spaced apart from the rear wheel. a second attachment means attached to the side frame; and a second attachment means attached to the first side frame; As it lowers, the attached first footrest placket is tilted inward. hanging downward from the second side frame and tilting inward. the first footrest placket and the first footrest placket at an angle to each other; a second footrest placket and a first footrest placket; a first footrest platform pivotably mounted on the , a second footrest bracket pivotably attached to the second footrest bracket. A wheelchair characterized by comprising two footrest platforms. 7. Furthermore, a flexible sheet member attached between the pair of side frames and, and a flexible seat back member attached between the pair of side frames. 7. The wheelchair according to claim 6, characterized in that: 8. the first and second footrest plackets are essentially tubular metal; 7. The wheelchair according to claim 6, characterized in that it is made up of members. 9. Further, the first footrest placket is configured to have an actuated position and a non-actuated position. pivoting around a first fixed support provided on the first side frame between the a first means for rocking; The second footrest placket is moved between the activated and non-activated positions. pivot around a second fixed support provided on the second side frame. 7. The wheelchair according to claim 6, further comprising second means for controlling the wheelchair. 10. Further, the first and second footrest plackets are connected to the first and second footrest plackets. and means for removing from the second side frame. Wheelchairs listed in Item 9 of the Scope of Request. 11. Collapsible and foldable for storage and handling , a wheelchair that can be opened in use, the wheelchair having a pair of opposed first and second A connection between a side frame member and the first and second side frames. connecting the seat structure and the first and second side frames; selectively guiding the side frames together into the folded position and separating them; folding means movable into an operative position; each of which is attached to the side frame at a first end and is attached to the side frame at a first end. a pair of feet spaced apart from the arm and curved inwardly toward each other; rest placket and Each second end of said footrest placket has a pivoting mechanism. a pair of footrest platforms attached to the wheelchair. 12. The sheet structure is Foldable and open position when the wheelchair is in the folded position Sometimes seat parts that are expandable and foldable when the wheelchair is in the folded position. Seat back support that is foldable and expandable when in the open position 12. The wheelchair according to claim 11, further comprising a portion. 13. the footrest platforms each receive the legs of an operator; A horizontal orientation that allows the chair to move closer to the front and a vertical orientation that allows the chair to be folded. Claim 12, characterized in that the device is selectively swingable between directions. Wheelchair included. 14. Additionally, said pair of feet are provided to assist the patient in getting on and off the chair. means for swinging the rest plackets outwardly away from each other; The wheelchair according to claim 11, characterized in that: