JP2600708Y2 - Manual traveling vehicle - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a manually driven vehicle,
The present invention relates to a foldable manual traveling vehicle including a main frame having a pair of left and right rod-shaped members extending vertically.

[0002]

2. Description of the Related Art As a walking aid for the aged, a seatable manual traveling vehicle called a silver car is known. Silver cars generally have wheels at four corners at the lower end and a frame having a U-shaped handle at the upper end, a storage bag held by the frame, and a lid that is also provided as a lid on top of the storage bag. And a seat member. The frame is foldable in the middle thereof, and has a lock mechanism for maintaining a posture during traveling and folding.

When the silver car is folded, the lock mechanism is released, the front side of the frame is held by one hand, the handle is held by the other hand, and the front side of the frame is lifted with the rear wheel grounded. Then, the lock mechanism is locked to maintain the frame in the folded position. Conversely, during traveling, the lock mechanism is released, the front side of the frame is extended, the front wheels are lowered to the ground, and the lock mechanism is locked to maintain the frame in the traveling posture. Therefore, in this silver car, only the rear wheel contacts the ground when folded.

[0004]

SUMMARY OF THE INVENTION In the above conventional configuration,
When folding the frame from the running position to the folding position,
You must bend your hips and lift the front of the frame with your other hand. The work of bending the waist and lifting the front side of the frame to fold it is particularly difficult for the elderly, requiring power. Also, after folding, only the rear wheel is in contact with the ground, so that the silver car cannot stand on its own in the folded position and must be leaned against a wall or the like.

It is an object of the present invention to facilitate folding and to be self-supporting when folded.

[0006]

A manually driven vehicle according to the present invention comprises a main frame, a pair of left and right support portions, a pair of left and right front leg members, a pair of left and right rear leg members, and a pair of left and right legs. First run of
A connection link, a pair of left and right second connection links, a lock member, a connection member, and a gripping member are provided. The main frame has a pair of right and left bar members extending vertically. The support portion is movably connected to an intermediate portion of each rod-shaped member in the extending direction. The front leg member extends obliquely forward, has an upper end rotatably supported by the support portion, and a lower end having a front wheel.
The rear leg member extends obliquely rearward, and has an upper end rotatably supported by the support portion and a lower end having a rear wheel. The first connection link connects the lower end of the rod-shaped member and the front leg member. The second connection link connects the lower end of the rod-shaped member and the rear leg member. The lock member is provided on the support portion, and releasably fixes the support portion to the bar-shaped member at the lower traveling position and the upper folding position on the main frame. The connecting members are left and right 1
Connect the pair of supports. The gripping member is connected to the lock member
With the connecting member to operate the locking member
It is arranged so that it can be gripped.

[0007]

[0008]

In the manual traveling vehicle according to the present invention, during traveling,
Hold the connecting member and the gripping member, and operate the gripping member.
Then , the fixing of the support portion to the rod-shaped member is released, the support portion is moved from the folded position to the lower traveling position, and the support portion is fixed to the rod-shaped member again by the lock member. As a result, the lower end of the rod-shaped member and the support portion approach each other, the first connection link and the second connection link are both opened, the front leg member moves forward, the rear leg member moves rearward, and the front wheel and the rear wheel move. Leave while grounded. On the other hand, at the time of folding , the grip member is operated in the same manner as described above, and the lock member is operated.
Then , the fixing of the support to the bar is released, the support is moved from the running position to the upper folding position, and the support is fixed to the bar again by the lock member. As a result, the support portion is separated from the lower end of the rod-shaped member, the first connection link and the second connection link are both closed, the front leg member and the rear leg member approach, and the front wheel and the rear wheel approach each other in a state of being in contact with the ground. I do.

Here, the connecting member and the holding member are held with one hand.
By simply grasping and operating, and moving the support part connected to the intermediate part of the rod-shaped member together with these members up and down between the running position and the folded position, the front wheel and the rear wheel are in contact with the ground and the load on the frame is reduced. Fold the manually driven vehicle in the state where it was received. For this reason, it is not necessary to bend and lift at the time of folding, and it is easy to fold and stand alone.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 to 4, a silver car 1, which is a manually driven vehicle according to an embodiment of the present invention, is used to assist a person with a physical disability or an elderly person who has difficulty in walking. Can be. The silver car 1 includes a frame 2, a seat member 3 rotatably connected to a center portion of the frame 2, and a storage bag 4 held by the frame 2 below the seat member 3. I have.

As shown in FIG. 2, the frame 2 has a U-shaped handle 10 formed at the upper end thereof and a pair of right and left bar members 13a extending diagonally downward from both ends of the handle 10.
A pair of left and right rear leg members 14 extending obliquely rearward from an intermediate portion of the main frame 13, and a pair of left and right front leg members 15 extending obliquely downward after extending horizontally horizontally from the intermediate portion. have. A pair of left and right cylindrical members (support portions) 16 that can move in the axial direction of the rod-shaped member 13a is disposed in the middle of the rod-shaped member 13a. The rear leg member 14, the front leg member 15, and the seat member 3 are rotatably connected to the cylindrical member 16. On the horizontal portion of the front leg member 15, the seat surface member 3 in the horizontal posture (see FIG. 3)
The support member 17 for supporting is provided.

The rear leg member 14 and the front leg member 15 and the lower end of the rod 13a are connected by a pair of left and right rear links 18 and a front link 19, respectively. Each connecting portion is rotatable. A rear wheel 12 is provided at a lower end of each rear leg member 14, and a front wheel 11 is provided at a lower end of the front leg member 15 so as to be rotatable. In addition, a swingable brake mechanism 22 is attached to the tip of the rear leg member 14 facing the rear wheel 12. The brake mechanism 22 for both rear wheels is
They are connected by a link 23. The link 23 is connected to a brake lever 25 arranged below the handle 10 by a wire 24. The movement of the brake lever 25 is transmitted to the link 23 via the wire 24, and the link 23 causes the brake mechanism 22 to swing. The brake mechanism 22 swings by operating a brake lever 25 to lock and brake the rear wheel 12. Also, the front wheel 11
It is a caster type and can be turned freely.

The pair of cylindrical members 16 are connected by a connecting member 26. As shown in FIG. 6, the surface of the connecting member 26 is covered with a cushion material 26a. As a result, the pair of cylindrical members 16 can be linked. As shown in FIG. 5, the front side (the right side in FIG. 5) of the cylindrical member 16 is
A pair of rotating brackets 27 are formed. The rear leg member 14, the front leg member 15, and the seat member 3 are rotatably connected to the rotation bracket 27.

A lock mechanism 40 is disposed on the back side (left side in FIG. 5) of the cylindrical member 16. Lock mechanism 40
Is to fix the tubular member 16 releasably at the lower traveling position and the upper folded position in the rod-shaped member 13a. The lock mechanism 40 includes a lock lever 41 disposed in a U-shape so as to be grippable below the connecting member 26, and a pair of lock arms 42 rotatably connected to both ends of the lock lever 41. I have. The rotation of the lock lever 41 to the rear side is restricted by a support member 16a formed on the rear side of the tubular member 16. An intermediate portion of the lock arm 42 is swingably supported by the tubular member 16.
A spring 43 is arranged between the upper part of the lock arm 42 and the cylindrical member 16 in a compressed state, and urges the lower part of the lock arm 42 toward the rod 13a. At the lower portion of the lock arm 42, a projection 44 projecting toward the rod-shaped member 13a is formed. On the other hand, an engagement hole 45 that engages with the projection 44 is formed at the folding position and the traveling position of the rod-shaped member 13a. The projection 4 is inserted into the engagement hole 45.
4 to engage the cylindrical member 16 with the rod-shaped member 1.
It can be locked between the traveling position 3a and the folded position. Here, by raising and lowering the lock lever 41 in the direction shown by the arrow, the lock arm 42 is rotated between a lock position shown by a solid line in FIG. 5 and a release position shown by a two-dot chain line,
Locking and unlocking of the cylindrical member 16 and the rod-shaped member 13a can be performed.

The seat member 3 is rotatable between a vertical position shown in FIG. 2 and a horizontal position shown in FIG. The seat member 3 includes a U-shaped pipe frame 20 rotatably supported by the cylindrical member 16 and a seat plate 21 fixed to the pipe frame 20.
And The seat member 3 is provided with a storage bag 4 described later.
Is mounted in the front lid of As shown in FIG. 1, the storage bag 4 has a bag body 30 held in the frame 2, a front cover 31 covering the front side of the bar-shaped member 13 a of the bag body 30, and a rear cover 32 covering the back. ing. The bag body 30 is provided at its upper part with a telescopic part 33 which expands and contracts up and down by rotation of the seat member 3.
have. The upper end of the bag main body 30 including the upper end edge of the elastic portion 33 is a bag opening 35.

The lids 31 and 32 are attached to the bag body 30 near the tubular member 16 so as to be lifted forward and backward, respectively. The front lid 31 is the rear lid 3
2 and a distal end 31b continuous with the proximal end 31a. The proximal end 31a is formed in a bag shape. The seat member 3 is inserted into the base 31a. At both ends of the base end portion 31a, there are provided engaging portions 31c provided with engaging holes for engaging with engaging pins 34 projecting left and right from the cylindrical member 16. Further, a side portion of the base end portion 31 a is connected to the elastic portion 33. In the state shown in FIG. 1, the distal end portion 31 b closes the bag opening 35. Along the bag opening 35, both ends of the cylindrical member 16
A U-shaped bag holding member 36 that is rotatably supported is disposed (FIG. 1). By the bag holding member 36, the shape of the bag opening 35 in the state of FIG. In addition, in the state of FIG. 1, the distal end portion 31 b can be opened and closed around the upper end of the seat member 3, so that stored items can be put in and out of the bag opening 35.

When the seat member 3 is set to the horizontal position shown in FIG. 4, the external appearance becomes the position shown in FIG. 3, and the seat member 3 can be seated on the base end 31a. Next, a method of using the silver car 1 will be described. When the silver car 1 is used for shopping, the seat member 3 is set to the vertical position shown in FIG. Then, as shown in FIG. 1, the front lid 31 stands up, and the elastic part 33 of the bag body 30 extends upward. And the tip 3 of the front lid 31
1b covers the opening 35 of the bag body 30. In this state, the engagement pin 34 is engaged with the engagement hole of the engagement portion 31c. Thereby, the capacity of the bag main body 30 increases, and the storage capacity increases.

Further, when the silver car 1 is used for sitting, the engaging portion 31c is removed from the engaging pin 34, and the seat member 3 is brought to the horizontal posture shown in FIG. As a result, as shown in FIG. 3, the front end 31b of the front lid 31 hangs down at the front of the bag body 30, and the base end 31a of the front lid 31 is in a horizontal state. In this state, the seat surface member 3 is inserted into the base end portion 31a, and the seat surface member 3 is horizontally supported by the support member 17, so that it is possible to sit on the base end portion 31a.
At this time, the elastic portion 33 of the bag body 30 is folded. Even in this state, articles can be stored in the storage bag 4.

On the other hand, when folding the silver car 1,
As shown in FIG. 6, the lock lever 41 and the connecting member 26 are grasped with one hand, and the lock lever 41 is lifted. Then, the lock arm 42 swings to the release position indicated by the two-dot chain line in FIG. 5, the lock between the cylindrical member 16 and the rod 13a is released, and the cylindrical member 16 becomes movable on the rod 13a. . When the connecting member 26 is lifted, the tubular member 16 moves up to the folded position accordingly. At this time, since the cylindrical member 16 and the lower end of the rod-shaped member 13a gradually separate, the rear link 18 and the front link 19 are closed and folded, and the rear wheel 12 and the front wheel 11 approach.

At the time of folding, the front wheel 11 and the rear wheel 12
Rolls and approaches with ground contact. Therefore, the frame 2 is folded while the front wheel 11 and the rear wheel 12 receive the load. When the cylindrical member 16 reaches the folding position, the lock arm 42 is inserted into the engagement hole 45 formed at the folding position.
Are engaged with each other, and the cylindrical member 16 is
Locked to. FIG. 6 shows this folded state. If the rear wheel 12 is locked by further operating the brake lever 25 in this folded state, the silver car 1 does not move at the time of folding. When the frame 2 is folded, the storage bag 4
Is not foldable, so that it is possible to fold it with the articles stored inside.

Conversely, when assembling the silver car 1, the lock lever 41 and the connecting member 26 are grasped with one hand, the lock lever 41 is lifted to release the lock, and the connecting member 26 is pushed down. Then, the cylindrical member 16 moves downward, the lower end of the rod-shaped member 13a approaches the cylindrical member 16, and the rear link 18 and the front link 19 gradually open. As a result, the rear leg member 14 and the front leg member 15 are opened, and the rear wheel 1 is opened.
2 and the front wheel 11 are separated, and the rear link 18 and the front link 19
When is substantially horizontal, the tubular member 16 is arranged at the running position, and the projection 44 of the lock arm 42 is engaged with the engaging hole 45 formed in the tubular member 16. Thereby, the silver car 1 is locked in the running state.

Here, the connecting member 26 and the lock lever 4
The silver car 1 can be easily folded and assembled without grasping the waist and lifting the frame by simply grasping the hand 1 with one hand and moving the tubular member 16 up and down. In addition, during the folding and assembling operation, the front wheel and the rear wheel are always in the ground contact state, so that the silver car 1 is independent even in the folded posture.

[Other Embodiments] (a) As shown in FIG. 7, by extending the rear leg member 14 and bending it horizontally therefrom, an elbow rest can be formed at the time of sitting. Also, the rear leg member 1
As shown in FIG. 8, 4 may be bent in an arc shape in the vicinity of the connection portion with the tubular member 16 and extended forward, and then bent upward and backward to form an armrest. (B) As shown in FIG. 9, an armrest 50 may be arranged at the upper end of the tubular member 16 so as to be freely foldable. (C) The application of the present invention is not limited to a silver car, but can be applied to a manually driven vehicle such as a stroller or a shopping cart.

[0024]

[Effect of the Invention] In the manually driven vehicle according to the present invention, the connecting portion
Hold the material and the gripping member with one hand, and
Just move the support up and down, bend your hips and frame
Can be easily folded without lifting. Also, at this time, the front wheel and the rear wheel are always in contact with the ground, so that the vehicle can stand independently when folded.

Further, when the connecting member and the holding member are provided,
Release of the lock and movement of the support portion can be performed simultaneously with one hand by gripping the connecting member and the gripping member, so that the folding operation and the assembling operation can be performed more easily.

[Brief description of the drawings]

FIG. 1 is a perspective view of a silver car as one embodiment of the present invention.

FIG. 2 is a perspective view of the frame in the state of FIG. 1;

FIG. 3 is a perspective view showing one operation state of the silver car.

FIG. 4 is a perspective view of the frame in the state of FIG. 3;

FIG. 5 is a partial side view showing a lock mechanism.

FIG. 6 is a perspective view showing a folded state.

FIG. 7 is a diagram corresponding to FIG. 4 of another embodiment.

FIG. 8 is a diagram corresponding to FIG. 4 of still another embodiment.

FIG. 9 is a view corresponding to FIG. 4 of still another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Silver car 2 Frame 11 Front wheel 12 Rear wheel 13 Main frame 13a Bar-shaped member 14 Rear leg member 15 Front leg member 16 Cylindrical member 18 Rear link 19 Front link 26 Connecting member 40 Lock mechanism 41 Lock lever

Claims (1)

(57) [Scope of request for utility model registration] 1. A main frame having a pair of left and right bar members extending vertically, a pair of left and right support portions movably connected to an intermediate portion of each bar member in an extending direction, and extending obliquely forward. A pair of left and right front leg members each having an upper end rotatably supported by the support portion and a lower end having a front wheel, extending obliquely rearward, and an upper end rotatably supported by the support portion, and a lower end supporting the rear wheel. A pair of left and right rear leg members, a pair of left and right first connection links connecting the lower end of the rod-shaped member and the front leg member, and a left and right connecting the lower end of the rod-shaped member and the rear leg member. a pair second connecting links, provided in the supporting portion, a locking member wherein the supporting portion is releasably secured to the rod member in the running position and an upper folded position beneath the said main frame, said a connecting member connecting the support portions of the left and right pair, wherein Is connected to the click member to operate the said locking member
To be gripped together with the connecting member.
And a holding member .