JP3657216B2 - Wheelbarrow - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
INDUSTRIAL APPLICABILITY The present invention can be used as a walking assistance vehicle for use in assisting walking of elderly persons and persons with disabilities in lower limbs, and is an assistance vehicle for carrying elderly persons and persons with disabilities in lower limbs. It is related with the handcart which can be used as.
[0002]
[Problems to be solved by the invention]
1. An assistance vehicle refers to a vehicle that is transported in a state where an elderly person or a person with a disability in the lower limbs is seated.
[0003]
Such assistance vehicles are often bulky and difficult to stack on trunks of light vehicles. Moreover, it takes a lot of labor to go over a place where there is a step with the person being assisted, because of the weight of the person being assisted.
[0004]
2. A walking assistance vehicle is a vehicle that assists the elderly and those with lower limbs.
[0005]
The pusher pushes the walking assistance vehicle while leaning on the walking assistant.
[0006]
Some of these walking assistance vehicles have seats, but they can only sit temporarily to take a break, and they can be pushed with the person being seated, that is, used as an assistance vehicle. It is difficult to do.
[0007]
This is because a conventional walking assistance vehicle with a seat is not provided with a footrest, and when a third person tries to push forward while the assistant is sitting, the assistant is hollowing his legs with his own power. This is because it must be maintained and is very tired and practically impossible.
[0008]
In addition, the handle of the walking assist vehicle is often bent in the traveling direction so that the pusher can lean on and easily apply weight. However, the handle bent toward the above-mentioned traveling direction is unsuitable for a third person to push while the assistant is sitting.
[0009]
3. The present invention is proposed in order to solve the above-described problems of conventional assistance vehicles and walking assistance vehicles.
[0010]
In other words, it can be used as an assistance vehicle, but it can be folded compactly, and even when the person being assisted is placed, it can easily cross the step, and it can also be used as a walking assistance vehicle. The object is to provide a wheelbarrow that can be used.
[0011]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a handcart according to claim 1 includes a pair of left and right front leg rods having wheels attached to the lower end, a pair of left and right rear leg rods attached to the lower ends, and a seat frame for attaching a seat. In a handcart composed of a heel and a handle heel, a portal footrest heel support heel was attached to the front leg heel, and a gate-shaped footrest slidably attached to the footrest heel support heel.
[0012]
Further, the wheelbarrow described in claim 1 is configured such that a handle 杆 attachment 杆 is attached to the upper end of the front leg 屈曲 so that it can be bent, and a gate-shaped reinforcement 杆 and a front leg 取 り 付 け る are attached to be rotatable in the front-rear direction. A heel is attached via a foldable link pipe so that it can rotate in the front-rear direction, a square seat frame 杆 and a front leg 杆 are attached so as to be able to rotate in the front-rear direction, and the seat frame 杆 and the reinforcing heel are rotated in the front-rear direction. Mounted freely.
[0013]
A handcart according to claim 2 is a handcart according to claim 1 , wherein a pair of left and right wheels are provided so that the lower end of the stand rod comes near the rear wheel, and the front leg rod and the rear leg rod are rotatable in the front-rear direction. It was.
[0014]
Further, the handcart according to claim 3 is a handcart according to claim 1 or claim 2, wherein a gate-shaped handle bar having a gate shape and a bent shape at both ends is reversibly converted into a handle bar mounting rod. Attached.
[0015]
How the handcart according to the present invention configured as described below works to solve the problem will be described with reference to the drawings.
[0016]
FIG. 1 is a perspective view of a handcart according to an embodiment of the present invention, FIG. 2 is a side view of the handcart, and FIG. 3 is a perspective view showing a state in which a footrest of the handcart is extended. 4 is a side view, FIG. 5 is a perspective view showing a state in which the handcart is folded, and FIG. 6 is a side view.
[0017]
As shown in FIGS. 1 to 4, the handcart according to the present invention is provided with a shape in which the footrest 3 is slidable on the footrest 8. In the state where the footrest 3 shown in FIGS. 3 and 4 is extended, it is possible to place the foot on the foot 3 while the assistant is sitting on the seat. In other words, the assistant does not need to keep his feet hollow by his own power and is easy.
[0018]
The handcart according to the present invention can reversibly attach the handle bar 8 to the handle bar mounting bar 4. Therefore, as shown in FIG. 3 and FIG. 4, it is possible to push the handle rod 9 in a state where the handle rod 9 is bent in the direction opposite to the traveling direction. That is, the pusher can easily push.
[0019]
As described above, the handcart according to the present invention can be used as an assistance vehicle in a state where the footrest 3 is extended as shown in FIG. 3 and the handle 9 is bent in the direction opposite to the traveling direction. That's it.
[0020]
On the other hand, as shown in FIG. 1, if the handle bar 9 is attached while being bent in the direction of travel, the pusher can be pushed forward while leaning on the handle bar 9. That is, it can be used as a walking assistance vehicle.
[0021]
As described above, the handcart according to the present invention can be used as an assistance vehicle or a walking assistance vehicle.
[0022]
Moreover, since the handcart according to the present invention has the following structure, it can be folded compactly.
[0023]
As shown in FIGS. 5 and 6, the handcart according to the present invention is provided with a reinforcing rod 5 and a front leg rod 1 so as to be rotatable in the front-rear direction. Further, the reinforcing rod 5 and the rear leg rod 2 are also attached so as to be rotatable in the front-rear direction. Further, a seat frame rod 6 and a front leg rod 1, and a seat frame rod 6 and a reinforcing rod 5 are attached so as to be rotatable in the front-rear direction.
[0024]
Since it is comprised as mentioned above, it becomes possible to fold compactly in the front-back direction.
[0025]
Furthermore, since the handle rod attachment rod 4 is flexibly attached to the upper end of the front leg rod 1, the handle rod 9 attached to the handle rod attachment rod 4 can be folded. That is, it becomes possible to fold up and down in a compact manner.
[0026]
The handcart according to the present invention is provided with a pair of left and right stand rods 7 such that the lower ends thereof are located in the vicinity of the rear wheels and are rotatable in the front-rear direction with the front leg rods 1 and 2. When the person who is being assisted is over the place where there is a step, the front wheel can easily be lifted if the pusher steps on the end of the stand rod 7 located near the rear wheel. Therefore, according to the handcart according to the present invention, it is possible to cross the step relatively easily even when the person being assisted is placed.
[0027]
Further, as shown in FIGS. 5 and 6, the handcart according to the present invention is provided so that the stand rod 7 is grounded in the folded state. The handcart is supported by the grounded stand 杆 7, and the handcart does not fall down even in the folded state, so that it can stand on its own.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
[0029]
The main components of the handcart according to the present invention are the front leg 1, the rear leg 2, the footrest 3, the footrest support 8, the handlebar attachment 4, the handlebar 9, the reinforcing bar 5, and the seat frame 3. 6 and stand 7.
[0030]
As shown in FIG. 1, a pair of left and right front leg rods 1 are provided, and a front wheel 1a is attached to the lower end thereof. A handle rod attachment rod 4 is attached to the upper end of the front leg rod 1 so as to be freely bent as shown in FIGS. As shown in FIG. 5, the front leg rod 1 and the handle rod attachment rod 4 are attached by sandwiching the front leg rod 1 and the handle rod attachment rod 4 between a pair of left and right joining plates 10. Here, the front leg rod 1 and the joining plate 10 are fixed, and the handle rod attaching rod 4 and the joining plate 10 are rotatably attached to the handle rod attaching rod 4.
[0031]
As shown in FIG. 5, a pair of left and right rear leg rods 2 are provided, and a rear wheel 2a is attached to the lower end thereof. The upper part of the rear leg collar 2 is bent, and an armrest 2b is formed.
[0032]
The footrest supporting rod 8 is a gate-shaped rod member as shown in FIG. 1, and is fixed to the front leg rod 1 as shown in FIG.
[0033]
As shown in FIG. 3, the footrest 3 is a gate-shaped heel member, and is slidably provided on the footrest heel support rod 8.
[0034]
FIG. 7 is a front view showing a locking relationship between the footrest and the footrest support rod. In the state in which the footrest 3 shown in FIGS. 1 and 2 is stored, the protrusion A provided on the footrest 3 is locked to the protrusion B provided on the footrest support 8, and the footrest 3 is moved forward. Prevents sliding. On the other hand, when the footrest 3 is slid forward and brought to the state shown in FIGS. 3 and 4, the footrest 3 is lifted slightly upward to disengage the protrusions A and B from each other. In this state, the footrest 3 is slid forward and downward. In a state where the footrest 3 is slid forward and downward, the joining member C is locked to the protrusion B and the sliding is stopped.
[0035]
The handle rod attachment rod 4 and the handle rod 9 are joined via an adjust 11. FIG. 8A is a plan view of the adjustment, and FIG. 8B is a front view thereof. The adjustment 11 and the handle hook mounting rod 4 are fixed. The adjustment 11 and the handle bar 9 are attached by passing the screw member 12 through a hole provided in the handle bar 9. The screw member 12 can be easily tightened and loosened by grasping the gripping portion 12a, whereby the handle rod 9 can be easily attached and detached.
[0036]
The handle bar 9 is a gate-shaped bar member as shown in FIGS. 1 and 3, and both ends thereof are bent. Since the handle bar 9 is detachably provided as described above, it can also be bent forward as shown in FIG. 1 or in FIG. As shown, it can be bent backward.
[0037]
Two protrusions 11 a provided on the upper part of the adjustment 11 are for rotatably supporting the folding link pipe 13. Here, the folded link pipe 13 is a rod-shaped eaves member. The pin is passed through the hole provided in the foldable link pipe 13 and the hole 11b provided in the protruding portion 11a, thereby supporting the foldable link pipe 13 so as to be rotatable.
[0038]
The adjustment 11 is provided with a plate-like back support cloth attachment body 11c. As shown in FIG. 5, the backrest support cloth 16 is attached over the backrest support cloth attachment body 11 c of the left and right adjustments 11. When the handcart according to the present invention is actually used, a backrest 17 is attached as shown in FIGS. 1 and 3. The backrest 17 is attached by being attached to the backrest support cloth 16.
[0039]
The reinforcing rod 5 is a gate-shaped rod member and is rotatably connected to the front leg rod 1. The reinforcing rod 5 and the rear leg rod 2 are connected to each other via a folding link pipe 13 so as to be freely rotatable. That is, the reinforcing rod 5 and the folding link pipe 13 are rotatably connected, and the folding link pipe and the rear leg rod 2 are rotatably connected.
[0040]
The seat frame rod 6 is a rectangular frame body and is rotatably connected to the front leg rod 1. Further, the seat frame rod 6 is also rotatably connected to the reinforcing rod 5. When the handcart according to the present invention is actually used, the cushion material 14 is wrapped around the seat frame ridge 6 as shown in FIGS.
[0041]
The stand rod 7 is a rod-shaped rod member, and is provided so as to be rotatable in the front-rear direction with the front leg rod 1 and the rear leg rod 2. The lower end of the stand rod 7 is provided in the vicinity of the rear wheel 2a, and when the handcart is folded as shown in FIG. 6, it is possible to stand on the ground or the floor and stand independently without falling down. It is provided as follows.
[0042]
FIG. 9 is a perspective view of the vicinity of the lock mechanism as viewed from an oblique rear side. A lock member 15 is rotatably attached to the joining plate 10 that connects the front leg rod 1 and the handle rod attachment rod 4. When the recess 15a provided in the lock member 15 is fitted into the protrusion 13a provided in the folding link pipe 13, the folding link pipe 13 cannot be rotated. As a result, the reinforcing rod 5 cannot be rotated, and the rotatable members such as the front leg rod 1, the rear leg rod 2, the seat frame rod 5 and the stand rod 7 cannot be rotated. Thereby, the use state (state which is not folded) of a handcart is fixedly locked.
[0043]
On the other hand, as shown in FIG. 9, when the state in which the concave portion 15a is fitted in the projection 13a is released, the folding link pipe 13 becomes rotatable. Then, the reinforcing rod 5 can be rotated, and the members such as the front leg rod 1, the rear leg rod 2, the seat frame rod 5 and the stand rod 7 can be rotated, and the handcart can be folded. .
[0044]
The handcart according to the present invention also has a brake mechanism, which is similar to the conventional brake mechanism. That is, the wire 20 is pulled by grasping the brake rod 18 provided in parallel with the handle rod 9, and the rotation of the rear wheel 2 a is controlled by the braking rod 19 interlocked with the wire 20. As shown in FIG. 9, if the wire 20 is passed between the reinforcing rod 5 and the backrest 17, it is possible to prevent the wire 20 from touching the pusher, and it becomes more convenient.
[0045]
【The invention's effect】
Since the present invention is configured as described above, it can be folded compactly while being used as an assistance vehicle, and even when a person being assisted is placed, a step can be easily formed. It is possible to provide a handcart that can be used as a walking assistance vehicle.
[Brief description of the drawings]
FIG. 1 is a perspective view of a handcart according to an embodiment of the present invention.
FIG. 2 is a side view of the handcart.
FIG. 3 is a perspective view showing a state in which a footrest of the handcart is extended.
FIG. 4 is a side view of the same.
FIG. 5 is a perspective view showing a state in which the handcart is folded.
FIG. 6 is a side view of the same.
FIG. 7 is a front view showing a locking relationship between the footrest and the footrest support rod.
FIG. 8 is a plan view of an adjustment.
b The same front view.
FIG. 9 is a perspective view of the vicinity of the lock mechanism as viewed obliquely from the rear side.
[Explanation of symbols]
1 .. Front leg cage 2. Rear leg cage 3. Foot rest collar 4. Handle collar installation collar 5. Reinforcement collar 6. Seat frame collar 7. Stand collar 8.・ Handle 13 ・ ・ Folding link pipe

Claims (3)

In a handcart consisting of a pair of left and right front leg cages with wheels attached to the lower ends, a pair of left and right rear leg cages with wheels attached to the lower ends, a seat frame cage for attaching a seat, and a handle cage,
A gate-shaped footrest support rod 8 is attached to the front leg rod 1 and a gate-shaped footrest rod 3 is slidably attached to the footrest rod support rod 8 so that a person can be placed on the foot. What
A handle 杆 attachment 杆 4 is attached to the upper end of the front leg 杆 1 so that it can be bent, and the portal-shaped reinforcement 杆 5 and the front leg 杆 1 are attached to be rotatable in the front-rear direction, and the reinforcement 杆 5 and the rear leg 杆 2 are folded. A square seat frame rod 6 and the front leg rod 1 are pivotably attached in the front-rear direction through the link pipe 13 and are pivotable in the front-rear direction, and the seat frame rod 6 and the reinforcing rod 5 are moved in the front-rear direction. It was possible to fold by attaching it so that it can rotate freely,
A handcart characterized by The handcart according to claim 1, wherein the stand rod 7 is provided such that the lower end of the stand rod 7 is located in the vicinity of the rear wheel and is rotatable in the front-rear direction with the front leg rod 1 and the rear leg rod 2, and a pair of left and right wheels are provided . The handcart according to claim 1 or 2 , wherein a gate-shaped handle bar 9 having a gate shape and a shape in which both ends are bent is reversibly attached to the handle bar mounting bar 4 .

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