JP4676482B2 - Tipping plate - Google Patents

Description

  The present invention relates to a tipping plate for putting a foot on and a tipping plate on which a fall-preventing mechanism is attached when an attendant puts weight on the rear part of the wheelchair and lifts the front part of the wheelchair.

  Wheelchairs are small casters mounted on the front frame, and it is often impossible for a single passenger to climb at a stepped place. In such a case, put the weight on the rear handle and raise the caster car of the front frame to the top of the step with a third party or an assistant, or hold the side frame of the wheelchair to the two people There was no other way but to lift it up. In addition, when climbing such a step, a third party or an attendant lifts the caster car provided at the front part of the wheelchair, so that the weight is applied to the handle part provided at the rear part of the wheelchair, Lifting the club requires a lot of power for a weak person.

  Therefore, a leg platform called a tipping plate is provided at the rear of the wheelchair, and if you put your foot on this leg platform and put your weight on it, the front part of the wheelchair will easily lift, and the caster car provided at the front will be Can be raised up. However, the tipping plate having a fixed length has a problem that it is difficult to step when it is short, and a person who is light in weight is difficult to apply weight. On the other hand, if the wheelchair is pushed for a long time, there is a risk that the wheelchair may fall in the way because it gets in the way when a person with heavy weight steps on it, and it takes too much weight. In addition, the tipping plate whose length can be adjusted has a thumbscrew attached to the fixing part of the tipping plate. The tipping plate is adjusted by loosening the thumbscrew and moving the fixing part of the tipping plate back and forth. It was a thing. In this method, in order to adjust the length, it is difficult to reach out from the rear part of the wheelchair and loosen or tighten the thumbscrew of the fixing part of the tipping plate.

  The present invention provides a tipping plate capable of easily adjusting the length of a tipping plate provided at the rear part of a wheelchair, and a tipping plate provided with a tipping prevention mechanism that does not have a risk of tipping even if it is depressed too much. It is to provide.

  As a result of diligent research to solve the above problems, it was easy to adjust the length of the tapping plate and succeeded in creating a tipping plate with a tip-over prevention mechanism that would not tip over even if the tapping plate was stepped on too much. did. The tipping plate of the present invention has the following characteristics.

  The first feature is that in a wheelchair having a caster wheel in the front frame, a main wheel in the rear frame, and a tipping pipe in the lower end of the rear portion, the weight is applied to the rear end of the wheelchair in order to ride up the step when using the wheelchair. A tipping plate that is hung and attached to lift the front part, the tipping plate having a lifting bolt, a triangular nut at one end of the lifting bolt, and a screw for fastening the triangular nut at the other end The lifting bolt and the triangular nut are inserted into the tipping pipe, and the length is adjusted by loosening the screw and sliding the lifting bolt and triangular nut through the tipping pipe and tightening the screw at an arbitrary position. It is a tipping plate characterized by being able to do. By allowing the length of the tipping plate to be adjusted, the tipping plate can be adjusted to a short length when not in use and to an appropriate length when necessary. In addition, the length can be easily adjusted only by adjusting the lifting bolt and the triangular nut. Furthermore, since the screw for fastening the triangular bolt of the tipping plate is attached to the lower portion of the tipping plate, it is not necessary to reach to the back of the wheelchair, and the length can be easily adjusted.

  In a wheelchair having a caster wheel on the front frame and a main wheel on the rear frame, the second feature is to lift the front by applying weight to the rear end of the wheelchair so as to climb up the step when the wheelchair is used. A tipping plate to be attached to the tipping plate, wherein the tipping plate is provided with an anti-falling mechanism comprising an anti-falling frame bent downward with an attaching portion at one end and a small wheel at the other end. It is a tipping plate. Providing the tipping plate with a fall prevention mechanism has the effect that the wheelchair does not turn backwards even if the weight is excessively applied.

  A third feature of the present invention is that a tipping plate is provided with a tipping prevention mechanism, the tipping prevention mechanism has a refracting portion, and a spring pin is urged to the refracting portion, and the lock pin is fitted and removed. The tipping according to claim 2, further comprising a lever, wherein the lock pin is engaged and fixed to a lock hole, and can be folded at a refraction portion by fitting and detaching the lock pin with the lever. It is a plate. The tipping plate is provided with a fall prevention mechanism, and by making the fall prevention mechanism foldable, the wheelchair is not disturbed when stored. In addition, even when the wheelchair is used, if the assistant does not need the tipping plate, it can be folded and placed.

  By providing the tipping plate with a lifting bolt and a triangular nut, the length of the tipping plate can be adjusted. The tipping plate whose length can be adjusted is short when not in use, and can be pulled out to an appropriate length when necessary. Further, since the screw for fastening the pulling bolt and the triangular nut is attached to the rear portion of the tipping plate, it is not necessary to reach to the back of the wheelchair, and the length can be easily adjusted.

  Providing the tipping plate with a fall prevention mechanism has the effect that the wheelchair does not turn backwards even if the weight is excessively applied. Furthermore, by making the fall prevention mechanism foldable, even when a wheelchair is stored with the tipping plate with the fall prevention mechanism attached, the tipping plate with the fall prevention mechanism can be folded to save space. can do.

  Embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited to the following embodiments.

  As shown in FIG. 1, the wheelchair 10 has a caster wheel 17 on the front frame 16, a main wheel 14 on the rear frame 13, and a tipping pipe 21 on the lower end of the rear portion. When it is necessary to climb a step when using the wheelchair 10, the front of the wheelchair can be lifted by placing the weight on the handle 11 provided at the rear end of the wheelchair 10. Thus, when the front part of the wheelchair 10 is lifted, a great force is required only by the handle 11, and therefore a tipping pipe 21 is provided at the lower end of the rear part of the wheelchair 10, and a weight is placed on the tipping pipe 21 with a foot on it. , The front part of the wheelchair 10 can be lifted. However, in order to put a foot on the tipping pipe 21, there is a risk that the foot slips because the pipe is narrow and the pipe is round.

  The tipping plate 100 of the present invention is detachable from a tipping pipe 21 provided at the lower end of the rear part of the wheelchair 10 as shown in FIG. As shown in FIG. 2, the structure of the tipping plate 100 to be inserted into the tipping pipe 21 is such that a screw 23 and a tipping plate 25 are attached to one end of the lifting bolt 22, and a triangular nut 24 is attached to the other end of the lifting bolt 22. Have. This is used by being inserted into the tipping pipe 21. The lifting bolt 22 inserted into the tipping pipe 21 can slide in the tipping pipe 21. Tipping is achieved by rotating the screw 23 provided at one end of the lifting bolt 22 to loosen the triangular nut 24 and sliding the lifting bolt, and tightening and fixing the triangular nut 24 with the screw 23 at an arbitrary position. The length of the plate 25 can be adjusted.

  By making it possible to adjust the length of the tipping plate 100 in this way, the tipping plate 100 can be used when it is not in use and when it is necessary, it can be pulled out to an appropriate length. Further, the length can be easily adjusted only by the adjustment with the lifting bolt 22 and the triangular nut 24. Furthermore, since the screw 23 for adjusting the lifting bolt 22 is attached to the rear part of the tipping plate 25, it is not necessary to reach to the back of the wheelchair, and the length can be easily adjusted.

  As shown in FIG. 3, in the tipping plate 200 provided with the fall prevention mechanism, the fall prevention frame 32 is bent downward, and an attachment portion 31 is provided at one end thereof. The frame 15 is attached with bolts. A small wheel 35 is attached to the other end of the fall prevention frame 32, and a tipping plate 33 is supported on the upper portion of the small wheel 35 by a support portion 34. To adjust the height of the tipping plate 33, the support portion 34 of the tipping plate 33 provided on the small wheel 35 is fixed to the adjustment member 26 with a bolt 27. It is possible to adjust the height to an appropriate height by fixing it at the position or by raising or lowering the position of the attachment portion 31 attached to the rear adjustment frame 15.

  When the tipping plate 200 is unnecessary, the lock fitting 36 shown in FIG. 4 can be easily removed by releasing the lock of the lock fitting 36. Thus, by providing the tipping plate 33 with the overturn prevention mechanism, there is no risk of the wheelchair falling backwards even if it is stepped on too much.

FIG. 5 shows an example in which a tipping plate 300 provided with a foldable fall prevention mechanism is mounted on a wheelchair. In this structure, as shown in FIG. 6, a small wheel 35 is attached to one end of a fall prevention frame 32 bent downward, and a tipping plate 33 is attached thereon so as to be supported from below by a support portion 34. At the other end of the fall prevention frame 32, a locking portion 41 having a refracting portion 45 is provided. A bent portion 45 is rotatably attached to the locking portion 41 with a bolt. When the lever 42 provided at the front of the refraction part 45 is pulled, the lock pin 43 urged by the spring 47 in conjunction with the lever 42 comes out of the lock hole 44, and the fall prevention frame 32 is centered on the refraction part 45. And can be pulled upward. The locking portion 41 is fitted into the tipping pipe 21 and is fixed by a unit fixing bolt 46.

As shown in FIG. 3, the attachment method of the tipping plate 33 provided with the fall prevention mechanism may be provided with the attachment portion 31 in the fall prevention frame 32 and attached to the rear adjustment frame 15 with bolts. Alternatively, as shown in FIG. 5, the locking portion 41 may be provided and attached to the tipping pipe 21 by the unit fixing bolt 46, and any method may be used as long as the rear portion of the wheelchair is provided, and a fall prevention mechanism is provided. The attachment method of the tipping plate 33 is not limited to the above method.

  FIG. 7 (7-1) shows a state in which the lever 42 is closed and the lock pin 43 is inserted and fixed in the lock hole 44, that is, the tipping plate 300 having a fall prevention mechanism can be used. FIG. 7 (7-2) shows a state in which the lever 42 is pulled up and the lock pin 43 is pulled out from the lock hole 44, and it is possible to fold.

  FIG. 8 shows a state where the lock pin 43 is pulled out from the lock hole 44 and the fall prevention mechanism is folded.

  FIG. 9 shows a state where the tipping plate 300 having a foldable fall prevention mechanism is attached to a wheelchair and the tipping plate 300 is folded. Even when the wheelchair is stored with the folding tipping plate 300 with the fall-preventing mechanism attached, the tipping plate 300 with the fall-preventing mechanism can be folded and stored small.

Side view of wheelchair with tipping plate Side view and top view of tipping plate Side view of a wheelchair equipped with a tipping plate with a fall prevention mechanism Top view of tipping plate with tipping prevention mechanism Side view of a wheelchair equipped with a tipping plate that can be folded with a fall prevention mechanism Side view of folding tipping plate with anti-tip mechanism Side view showing the opening and closing of the folding tipping plate lever with a fall prevention mechanism Side view showing a folded tipping plate with a fall prevention mechanism A side view of the folded tipping plate with a fall prevention mechanism attached to the wheelchair

Explanation of symbols

DESCRIPTION OF SYMBOLS 100: Tipping plate 200: Tipping plate 300 which provided the fall prevention mechanism 300: The tipping plate which provided the fall prevention mechanism and was foldable 10: Wheelchair 11: Handle 12: Brake lever 13: Rear frame 14: Main wheel 15: Rear adjustment frame 16: Front frame 17: Caster 21: Tipping pipe 22: Lifting bolt 23: Screw 24: Triangular nut 25: Tipping plate 26: Adjustment plate 27: Bolt 31: Attachment portion 32: Tipping prevention frame 33: Tipping plate 34: Supporting part 35: Small wheel 36: Lock metal fitting 41: Locking part 42: Lever 43: Lock pin 44: Lock hole 45: Refraction part 46: Unit fixing bolt 47: Spring

Claims (1)

A wheelchair having a caster wheel 17 on the front frame 16, a main wheel 14 on the rear frame 13, and a tipping pipe 21 attached to lift the front part by placing a foot in order to climb a step on the lower end of the rear part, A tipping plate attached to the tipping pipe 21 so that the foot does not slip;
A locking portion 41 for locking to the tipping pipe 21 and a small wheel 35 are attached to the other end of the tipping prevention frame 32 bent downward from the middle, and the tipping plate height is set on the small wheel 35. A tipping plate 33 supported by a support portion 34 attached to an adjustment member 26 for adjusting the height is attached, a bending portion 45 is provided on the upper portion of the locking portion 41, and a spring 47 is biased to the bending portion 45. A lock pin 43 and a lever 42 for fitting / removing the lock pin 43, the lock pin 43 is engaged and fixed to the lock hole 44, and the lock pin 43 is fitted / removed by the lever 42. The tipping plate provided with a fall prevention mechanism characterized in that it can be folded upward from the refraction part 45.

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