JP3113742U - Walker and wheelchair with electric standing assist device - Google Patents

Abstract

[PROBLEMS] A user can operate with one hand, can stand up from a bed independently without a caregiver, and go to the place he wants to go, and realizes the three functions of an electric walker, wheelchair and lift with one machine. Providing a walker and wheelchair with an electric standing assist device.
A U-shaped frame composed of two symmetrical armrests, two lower beams, and a front support leg. There are two drive wheels 1 at the front lower side of the frame, and there are telescopic arms 4 that can be expanded and contracted simultaneously on the two armrests. There are telescopic rods 5 with driven wheels 2 that can simultaneously expand and contract at the same time on the two lower beams. 1 is a driving wheel, 2 is a driven wheel, 3 is a front support leg, 4 is a telescopic arm, 5 is a telescopic rod, 6 is a heel, 7 is a waist protection plate, 8 is a seat, 9 is a lower beam, 10 is an armrest, 31 Is a pedal.
[Selection] Figure 1

Description

  The present invention relates to the field of walker, wheelchair and lift.

  A wheelchair is a mobile device for people with reduced mobility. There are manual or electric ones. However, until now, the user had to be helped by someone else to move to the wheelchair. In addition, people with disabilities also need some walking training. However, with existing walker, it is difficult for the user to get up from the bed and enter the walker, and the load on the user's foot cannot be adjusted.

  For the problem described in the background art, the handicapped person needs to be able to use it as a wheelchair or a walker, adjust the burden on the foot, and the user wants to stand up from the bed independently This machine is easy to operate and easy to operate. The development of the aforementioned machines is a challenge.

  The present invention can be controlled by a remote control and can automatically run the machine. In the initial state, as shown in FIG. 7, while the user is sitting on the bed, the machine is backed by the remote controller and moved to the front of the user. Since the front support leg of the machine is in the low position and the armrest and the lower beam are in the extended state, the user leans on the heel and the front support leg rises by operating the device deformation button, and at the same time the armrest and the lower beam Shortens, lifts the body forward, and the person stands as shown in FIG. At this time, the waist protection plate automatically fits to prevent falling back. When the drive motor is activated, it is pulled by the drive wheel and can walk about the machine (FIG. 9). At that time, since the lower beam is shortened, the distance between the driving wheel and the driven wheel is shortened, which is convenient for cutting the direction. When trying to sit down, the user lowers the seat and pedal with a switch. By operating the deformation button, the front support leg is lowered, the armrest and the lower beam are simultaneously extended, and the machine is in an electric wheelchair state (FIG. 10).

  The present invention can be operated by the user with one hand, and can stand up from the bed independently and go to the place where he / she wants to go without a caregiver. Three functions of electric walker, electric wheelchair and lift can be realized with one machine. It can directly solve the problem of improving the standard of living due to the expansion of the range of activities such as independent transfer operation and movement that is handicapped.

  Hereinafter, embodiments will be described with reference to the accompanying drawings. As shown in FIG. 1, the composition of the present invention is a U-shaped frame composed of two symmetrical armrests 10, two lower beams 9, and the front support legs 3. There are two drive wheels 1 at the front and lower side of the frame, and there are extendable arms 4 that can be simultaneously expanded and contracted on two armrests. There are telescopic rods 5 with driven wheels 2 that can simultaneously expand and contract at the same time on the two lower beams. The front support leg 3 has an upper telescopic main hydraulic cylinder 14 (FIG. 5). The main hydraulic cylinder, the upper telescopic arm 4 and the lower telescopic bar 5 are interlocked. The interlocking relationship is that when the main hydraulic cylinder rises, the upper telescopic arm 4 and the lower telescopic bar 5 contract simultaneously, and when the main hydraulic cylinder descends, the upper telescopic arm 4 and the lower telescopic bar 5 extend simultaneously. These linkages are realized by the deformation control part (FIG. 5).

  Figure 5 shows the deformation control part. This part consists of an electric part installed in the front support leg and an assembly operation cylinder, and there are two assembly operation cylinders. The configuration includes a main hydraulic cylinder 14 and auxiliary hydraulic cylinders 15 and 16. The motor 11 controlled by the switch is decelerated through the speed reducer 12, and then a wire 30 for pulling the export shaft is installed and fixed through the pulley 13 to the outer cylinder 26 of the main hydraulic cylinder 14 mounted in the front support leg. The expansion and contraction of the hydraulic cylinder is realized. At that time, the auxiliary hydraulic cylinders 15 and 16 of the upper telescopic arm 4 and the lower telescopic rod 5 simultaneously control expansion and contraction.

  Figure 4 shows the interlocking mechanism between the seat and the pedal. This mechanism is composed of two seat plates 8 and two pedals 31, and the rotation shafts 20 and 32 are provided on the outer sides of each, and the end of the shaft 20 is a swing arm mechanism 19. Each self-help arm of this mechanism was driven by the wire of the auxiliary drive device 17 and rotated at the same time, thereby realizing the operation or storage of the seat plate and the pedal.

  The waist protection mechanism can be seen from FIG. This mechanism is composed of two symmetrical waist protection plates 7 that can be opened and closed. The rotation axis of each waist protection plate is fixed to the end of the upper telescopic arm 4 and inside the guide sleeve 22 fixed to the outside of the upper telescopic arm 4. There is a top bar 21, and a restoring spring 23 is attached between the top bar and the guide rod. If the upper telescopic arm 4 contracts, the top bar will be ejected later and the waist protection plate will close.

  As in the previous functions, first the user is sitting on the bed, the machine is moved to the front of the user with the remote control, the front support leg of the machine is in the lower position, and the armrest and lower beam are in the extended state. The user leans on the heel (Fig. 7), and the front support leg is raised by operating the device deformation button, and at the same time the armrest and lower beam are shortened to lift the body forward. It will be in the state which stood like. At this time, the waist protection plate automatically fits to prevent falling back. When the drive motor is activated, it is pulled by the main driving wheel and can walk about the machine (FIG. 9). Since the lower beam was shortened at that time, the distance between the driven wheel and the driven wheel was shortened, which is convenient for turning the direction. When trying to sit down, the user lowers the seat and pedal with a switch. By operating the deformation button, the front support leg is lowered, the armrest and the lower beam are extended, and the machine is in an electric wheelchair state (FIG. 9).

3D view of the present invention. FIG. 4 is a diagram showing the principle of deformation structure work with the front cover removed according to the present invention. The perspective sectional drawing of the side surface part of this invention. System diagram of active seats and pedals. Deformation control structure principle diagram. Composite cylinder structure diagram. The state of use sitting on the bed. Standing use state diagram. Electric walker use state diagram. Electric wheelchair use state diagram.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Drive wheel 2 ... Driven wheel 3 ... Front support leg 4 ... Telescopic arm 5 ... Telescopic rod 6 ... ··· ・ 7 ··· Back protection plate 8 ··· Seat 9 · · · Lower beam 10 · · · Armrest 11 · · · Motor 12 ··· .... Reducer 13 ... Pulley 14 ... Main hydraulic cylinder 15 ... Auxiliary hydraulic cylinder 16 ... Auxiliary hydraulic cylinder 17 ... · Reducer 18 ··· Pulley 19 ··· Swing arm mechanism ··· Seat axis 21 ··· Top rod 22 ··· Guide 23 ·・ ・ ・ ・ ・ Spring 24 ・ ・ ・ ・ ・ ・ Bearing 25 ・ ・ ・ ・ ・ ・ Bearing 26 ・ ・ ・ ・ ・ ・ Main hydraulic cylinder sleeve 27 ・ ・ ・ ・ ・ ・ Main hydraulic cylinder oil rod 28 ・ ・.... Main oil Cylinder in 套筒 29 ...... main hydraulic cylinder block 30 ...... wire 31 ...... pedal 32 ...... pedal shaft

Claims (6)

  It is a U-shaped frame composed of two symmetrical armrests, two lower beams, and a front support leg. There are two drive wheels on the front lower side of the frame, two armrests have telescopic arms that can be expanded and contracted simultaneously, and two lower beams have telescopic bars with driven wheels that can be expanded and contracted simultaneously. There is an upper telescopic main hydraulic cylinder on the front support leg, and the main hydraulic cylinder, upper telescopic arm and lower telescopic bar are linked. The interlocking relationship is that when the main hydraulic cylinder rises, the upper telescopic arm and the lower telescopic bar contract simultaneously, and when the main hydraulic cylinder descends, the upper telescopic arm and the lower telescopic bar extend simultaneously. These linkages are a walker and wheelchair with an electric standing assist device realized by a deformation control part.   The seat and pedal are linked. This mechanism consists of two seat plates and two pedals, each of which has a rotating shaft, and the end of the seat plate shaft is a swing arm mechanism. The walker / wheelchair with an electric standing assist device according to claim 1, wherein each self-help arm of this mechanism is driven by the wire of the assist drive device and rotates simultaneously to realize the operation or storage of the seat plate and the pedal.   It is a waist protection mechanism. This mechanism consists of two symmetrical waist protection plates that can be opened and closed. The rotation axis of each waist protection plate is fixed to the end of the upper telescopic arm, and the top bar is placed in the guide arm fixed to the outside of the upper telescopic arm. Yes, a restoring spring is attached between the top bar and the guide sleeve. The walker / wheelchair with an electric standing assist device according to claim 1 or 2, wherein when the upper telescopic arm contracts, the top bar protrudes backward and the waist protection plate closes.   The structure contains cocoons. There is a symmetrical mantle tube inside the upper telescopic arm end, and the heel is inserted. Therefore, the walker / wheelchair with an electric standing assist device according to claim 1, wherein the height of the heel can be adjusted.   The deformation control part is composed of an electric part installed in the front support leg and an assembly operation cylinder, and there are two assembly operation cylinders. The configuration includes a main hydraulic cylinder and an auxiliary hydraulic cylinder. The motor controlled by the switch is decelerated through the speed reducer, and then a wire for pulling simultaneously to the export shaft is installed, fixed to the outer cylinder of the main hydraulic cylinder installed in the front support leg through the pulley, and the expansion and contraction of the hydraulic cylinder Is realized. The walker / wheelchair with an electric standing assist device according to any one of claims 1, 2, 3 and 4, wherein at that time, the upper hydraulic arms of the upper telescopic arm and the lower telescopic rod also control expansion and contraction.   The upper telescopic arm and the lower telescopic bar are connected to the active cylinder of the auxiliary hydraulic cylinder. The base of the auxiliary hydraulic cylinder is fixed to the armrest and the lower beam, and the inlet contacts the inner and outer layers of the main hydraulic cylinder. The main hydraulic cylinder has a double sleeve structure, the inner sleeve is fixed to the base of the hydraulic cylinder, the outer sleeve is fitted to the outside of the inner sleeve, and the oil rod fixed to the bottom inside the outer sleeve is It is inserted into the inner sleeve. When the cannula is raised, the oil rod in the inner cannula rises simultaneously, forming a first negative pressure chamber, and between the upper end of the inner cannula, the inner wall of the outer cannula and the oil rod, A pressure chamber is formed. The walker / wheelchair with electric standing assist device according to any one of claims 1, 2, 3, 4, and 5, wherein the two negative pressure chambers are connected to the cylinders of the upper telescopic arm and the lower telescopic rod, respectively, and simultaneously contract. .

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