KR102265885B1 - Electric wheelchair with multiple mode type changes - Google Patents

Abstract

The electric wheelchair capable of changing multiple posture modes according to the present invention is a central support on which the user's buttocks are seated, a backrest that tilts up and down from one side of the central support and supports the user, and the other side of the central support. A bed unit including a leg support part for supporting the legs of a base provided with a plurality of moving wheels and provided under the bed unit, and supporting the bed unit at a predetermined height between the base and the bed unit, at least part of a frame unit configured to be tiltable with the base, a defecation unit having a receiving space therein and selectively elevating and lowering from the lower part of the central support to care for defecation close to the user's buttocks, and at least one of the base or the frame unit It is provided in one and includes a driving unit for independently adjusting the tilting angle of the backrest part, the legrest part, or the frame unit, the wheelchair mode in which the backrest part and the legrest part are vertically arranged by a user's operation , a bed mode in which the backrest and the legrest are horizontally arranged and a comfort mode in which the frame unit is tilted at a predetermined angle from the base.

Description

Electric wheelchair with multiple mode type changes

The present invention relates to an electric wheelchair, and to an electric wheelchair capable of changing multiple posture modes that can be used in various modes according to convenience by changing a posture while a user is in the wheelchair.

In the case of caregivers who cannot bathe on their own, such as the elderly, severely cared for, and the disabled, they take a bath with the help of a caregiver. Recently, due to an increase in the elderly population, the number of caregivers who have difficulty lying in bed or moving on their own is increasing. Accordingly, the work of caregivers is aggravated. As a result, various devices intended to improve the convenience of caregivers and caregivers, etc. is being introduced

Among these devices, a wheelchair is a mobility aid to help the disabled, the patient, or the elderly with limited mobility to move comfortably.

These wheelchairs are composed of a seat, a backrest, and wheels mounted on both sides of the seat, and manual wheelchairs are widely used in which the occupant rotates the wheel by hand or an assistant moves the wheel by holding the handle from the back.

Recently, many electric wheelchairs that do not need to manually move the wheels have been developed, and various products have been released and sold.

In general, electric wheelchairs use motors to drive wheels, and wheelchairs that move have the advantage of making it easier for the disabled, patients, or the elderly with limited mobility.

However, in the case of a device for the purpose of simply moving, although it is easy for a user with limited mobility to move, there is a problem in that it is inconvenient to change an additional posture or use the toilet.

In particular, in the case of the severely disabled or the elderly, it is difficult to adjust their posture by themselves in addition to getting on and off the wheelchair, and there is an inconvenience that a caregiver has to stand by at all times to handle the toilet.

Of course, through the conventionally developed electric wheelchair, the inconvenience of the user's movement can be resolved to some extent, but there is a need to develop a technology that can solve problems such as handling a toilet or a stable posture change.

The present invention is an invention devised to solve the problems of the prior art, and it is possible to change the posture through the application of various modes while the user is in a wheelchair, and to change multiple posture modes to ensure stability To provide an electric wheelchair.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

The electric wheelchair capable of changing multiple posture modes of the present invention for achieving the above object includes a central support on which the user's buttocks are seated, a backrest that tilts up and down from one side of the central support and supports the user, and the central support. A bed unit tilting from the other side of the bed unit including a leg support part for supporting the user's legs, a base provided with a plurality of moving wheels and provided under the bed unit, and between the base and the bed unit, the bed unit is raised to a certain height. Supported in, at least a portion of the frame unit configured to be tiltable with the base, having an accommodating space therein and selectively elevating and lowering from the lower part of the central support unit to approach the user's buttocks to care for defecation, and the base or and a driving unit provided in at least one of the frame units to independently adjust a tilting angle of the backrest part, the legrest part, or the frame unit, and the backrest part and the legrest part by a user's operation It is adjusted to any one of a wheelchair mode arranged vertically, a bed mode in which the backrest and the leg rest are horizontally arranged, and a comfort mode in which the frame unit is tilted at a predetermined angle from the base.

In addition, the driving unit includes a first driving part for adjusting the tilting angle of the frame unit in a vertical direction on the base, a second driving part provided on the frame unit to adjust the angle of the backrest part, and adjusting the angle of the leg support part It may include a third driving unit.

In addition, at least one of the first driving unit to the third driving unit may be configured as an actuator to extend and contract in length.

In addition, the comfort mode may be characterized in that the frame unit is tilted upward in a state in which the backrest part is tilted upward at a predetermined angle and the legrest part is tilted downward by a predetermined angle.

In addition, it is provided on the base or the frame unit to detect the center of gravity for the load transmitted from the upper portion, and to move the position when changing to the comfort mode to maintain the center of gravity and further include a rollover prevention unit to prevent overturning can

In addition, the defecation unit may include a washing unit for cleaning the buttocks from the side of the receiving unit and the receiving unit for receiving the bowel movement discharged close to the user's buttocks.

In addition, the defecation unit may be configured to be detachable from the inside of the frame unit.

Electric wheelchair capable of changing multiple posture modes of the present invention for solving the above problems has the following effects.

First, since the plurality of members are configured to be independently tiltable, the user can adjust the posture according to the mode, and when changing to the bed mode, there is an advantage that the user can use it as a bed without getting off.

Second, in the comfort mode, the frame unit itself is tilted to adjust the inclination of the central support, thereby dispersing the load applied to the user and enabling a comfortable posture.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a view schematically showing the configuration of an electric wheelchair according to the present invention;
Figure 2 is a view showing the internal configuration of the electric wheelchair of Figure 1;
3 is a view showing a state in which the bed unit is arranged in a wheelchair mode in the electric wheelchair of FIG. 1;
4 is a view showing a state in which the bed unit is arranged in a bed mode in the electric wheelchair of FIG. 1;
5 is a view showing a state in which the bed unit operates in a comfort mode in the electric wheelchair of FIG. 1; and
6 is a view showing a state in which the toilet unit is raised and lowered in the electric wheelchair of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention in which the objects of the present invention can be specifically realized will be described with reference to the accompanying drawings. In describing the present embodiment, the same names and the same reference numerals are used for the same components, and an additional description thereof will be omitted.

With reference to the drawings shown below, the configuration of the prefabricated chair according to the present invention will be schematically described as follows.

The electric wheelchair according to the present invention allows a user to take various postures by changing a plurality of modes in a seated state, and in particular, it is possible to maintain a more comfortable posture when realizing a comfort mode due to tilting of the frame unit itself.

The electric wheelchair according to the present invention will be described with reference to the drawings shown in FIGS. 1 to 6 as follows.

Specifically, the electric wheelchair 100 is changed to any one of a wheelchair mode, a bed mode, and a comfort mode by the operation of the bed unit 110 so that the user can control the posture according to the convenience of the user, and the bed mode separately from the wheelchair mode. By keeping it, it can be used like a bed.

The electric wheelchair 100 according to the present invention largely includes a bed unit 110 , a base 120 , a frame unit 130 , a bowel movement unit 150 and a driving unit 140 .

The bed unit 110 has a configuration in which a user is seated on the upper surface, and a plurality of members are tiltable and are continuously coupled to each other for a long time. At this time, the bed unit 110 is configured to be tiltable in the vertical direction along the longitudinal direction, so that the posture can be adjusted.

The bed unit 110 is continuously coupled such that the backrest 114 and the leg support 116 are tiltable in the vertical direction on both sides around the central support 112 on which the user's buttocks are seated, and these It can be adjusted in various shapes such as wheelchair type or bed type depending on the angle.

In the present embodiment, the bed unit 110 has a plurality of members continuously and long, and the backrest part 114 and the leg support part 116 are each continuously formed by at least one member. A user is seated on the upper surface of the bed unit 110 configured as described above, and tilts around the central support unit 112 .

Referring to the drawings, the backrest 114 is composed of one member, and the legrest 116 is composed of two members and can be tilted to support the user's back and legs.

On the other hand, the base 120 is basically in charge of movement in the lower part of the electric wheelchair 100 and supports the whole so that the bed unit 110 is movable at a certain height.

Specifically, the base 120 is configured to be movable by being provided with a plurality of moving wheels 122 at the lower part, and in this embodiment, it is composed of a rectangular frame and provided with four moving wheels 122 , respectively. In addition, as the base 120 moves by the driving of the moving wheel 122 or an external force acting from the outside, the bed unit 110 also moves together to perform the function of a wheelchair or a mobile bed.

Here, the moving wheels 122 are each independently rotatable on the base 120 , and the direction of the wheels in the base 120 is adjustable.

Meanwhile, the frame unit 130 supports the bed unit 110 at a predetermined height between the base 120 and the bed unit 110 , and at least a portion thereof is configured to be tiltable with the base 120 .

Specifically, the frame unit 130 is formed to be elongated in the vertical direction corresponding to the height of the bed unit 110, and a plurality of frames are coupled to each other to have a certain level of width. Here, the frame unit 130 may have a separate space formed therein, and the driving unit 140 to be described later may be provided, and is configured to be selectively tiltable on the base 120 .

At this time, the frame unit 130 is basically arranged along the vertical direction to support the base 120 and the bed unit 110, and as the frame unit 130 is tilted, the bed unit 110. It is configured to be inclined at a certain angle in this horizontal state. A specific operation form of the frame unit 130 will be described later.

On the other hand, the defecation unit 150 is provided in the lower portion of the bed unit 110 to take care of the user's defecation, so that the user can handle defecation while riding in a wheelchair.

Specifically, the defecation unit 150 has a space therein and selectively elevates and descends from the central lower part of the bed unit 110 to approach the user's buttocks, collects bowel movements, and washes the buttocks.

In the present invention, the defecation unit 150 includes a accommodating part for accommodating the user's bowel movements and a washing part (not shown) for cleaning the buttocks from the side of the accommodating part, and the accommodating part is formed in a bucket shape to form the frame unit ( 130) is configured to ascend and descend along the up-down direction from the inside.

Specifically, the accommodating part is raised and lowered from the lower part of the central support part 112 in the form of a bucket having an open top and a space therein. At this time, the opened upper part is disposed toward the central support part 112 and a separate cover 152 is provided to selectively open. Here, the cover 152 may be integrally formed by interlocking with the central support part 112 , and at the same time as a part of the central support part 112 is opened, the cover 152 is opened together toward the user's buttocks. It is configured so that the interior can be derived.

Here, as shown, the accommodating part ascends and descends upward and the cover 152 is opened to accommodate the defecation discharged from the user's buttocks, and descends in a closed state by the cover 152 to accommodate the defecation. do.

In this embodiment, the receiving unit may be configured so that the cover 152 is independent of the central support unit 112, and is detachably configured in the frame unit 130 to facilitate the defecation accommodated.

In addition, the washing unit is configured to be sprayed from the side of the receiving unit toward the buttocks, and is configured in the form of a general bidet to wash and dry the user's buttocks.

In this way, the defecation unit 150 is configured to rise and fall on the frame unit 130 to accommodate the user's defecation and to wash the buttocks, and thus the user can process the bowel movement while riding in the wheelchair. .

Here, the accommodating part is configured to be elevating and lowering by a separate elevating means 154 and selectively elevating and lowering by a user's operation, and the washing unit is also configured to elevate and lower together in the accommodating part.

On the other hand, the driving unit 140 is configured to adjust the tilting of the frame unit 130 and the bed unit 110, and is provided in at least one of the base 120 and the frame unit 130, respectively. Independently adjust the tilting angle of

Specifically, the driving unit 140 is configured in plurality to adjust the angles of the frame unit 130 , the backrest part 114 , and the leg support part 116 , respectively. In the present invention, the frame unit 130 has a first driving part 142 , the backrest part 114 has a second driving part 144 , and the leg support part 116 has a tilting angle by the third driving part 146 . Controlled, each of the first driving unit 142 to the third driving unit 146 may be configured in the form of a rotating motor or actuator.

In this embodiment, the first driving part 142 to the third driving part 146 are formed to be elongated so that expansion and contraction is controlled, so that the frame unit 130, the backrest part 114, and the leg support part 116, respectively. Adjust the tilt angle. Here, the first driving part 142 to the third driving part 146 are each formed in the form of an actuator to adjust the length of both ends, and accordingly, the tilting angle can be adjusted.

Both ends of the first driving unit 142 are connected to the base 120 and the frame unit 130 , respectively, and are configured to be selectively stretchable to adjust the tilting angle of the frame unit 130 .

And the second driving part 144 has both ends connected to the frame unit 130 and the backrest part 114, and the third driving part 146 has both ends of the frame unit 130 and the leg support part ( 116) are connected to each other to expand and contract.

Accordingly, the tilting angles of the frame unit 130 , the backrest part 114 , and the leg support part 116 are adjusted by the first driving part 142 to the third driving part 146 , respectively.

As such, the driving unit 140 adjusts the tilting angles of the bed unit 110 and the frame unit 130 by the first driving unit 142 to the third driving unit 146 formed in the form of a plurality of actuators. do.

As described above, the wheelchair according to the present invention includes the bed unit 110, the base 120, the frame unit 130, the defecation unit 150 and the driving unit 140 as described above. By adjusting the tilting angle of the bed unit 110 and the frame unit 130, the user's posture can be adjusted, and along with this, the user's defecation can be taken care of through the defecation unit 150.

As described above, in the electric wheelchair 100 according to the present invention, a part of the bed unit 110 or the frame unit 130 is tilted by the user's operation, so that various postures can be changed according to the user's convenience.

Meanwhile, although not shown in the drawings, the electric wheelchair according to the present invention may further include a separate rollover prevention unit (not shown).

The rollover prevention unit is configured to maintain the center of gravity of the electric wheelchair 100, and is provided on the base 120 or the frame unit 130 to sense the center of gravity for a load transmitted from the upper portion, When changing to the comfort mode, the position is moved to maintain the center of gravity and prevent overturning.

At this time, the rollover preventing unit, the position of the base 120 or the frame unit 130 along the lateral direction can be changed, and thus the center of gravity is shifted to one side even if the user changes the posture through the movement of the center of gravity. deflection can be prevented.

In addition, it is possible to secure stability by preventing the center of gravity from being sharply shifted by the user at the same time as the center of gravity is located in the lower direction.

The rollover prevention unit is generally provided on the base so that a separate weight is configured to move in the lateral direction, and thus the center of gravity can be adjusted.

Next, referring to FIGS. 3 to 5 , the operation of the electric wheelchair according to the present invention will be described in more detail. As described above, the electric wheelchair 100 according to the present invention includes the backrest part 114 and the leg support. As the part 116 and the frame unit 130 are tilted, the wheelchair mode, the bed mode, and the comfort mode are adjusted.

First, referring to FIG. 3 , the electric wheelchair 100 is arranged in the wheelchair mode, and the frame unit 130 so that the central support part 112 in the electric wheelchair 100 maintains a horizontal state as shown. is not tilted, the backrest 114 is tilted upward, and the legrest 116 is tilted downward.

Here, the leg support part 116 is composed of a plurality of members and a separate foot support part is also provided, and thus is arranged in a general chair shape.

As described above, in the wheelchair mode, the user is seated in the electric wheelchair 100 and can be used as a general electric wheelchair 100 .

On the other hand, referring to FIG. 4 , in a state in which the electric wheelchair 100 is arranged in the bed mode, the backrest 114 and the leg support 116 are in a horizontal state around the central support 112, and the user It is configured to be depressed from the upper surface.

The electric wheelchair 100 is deformed in the form of a general movable bed, and is moved by the manipulation of the user or others, and the user can move in a lying state.

As such, the backrest part 114 and the legrest part 116 can be adjusted in various shapes by the expansion and contraction of the second driving part 144 and the third driving part 146 described above. You can select the dog's mode and use it in the desired posture.

In addition, the electric wheelchair 100 may be seated at various angles by adjusting the tilting angles of the backrest 114 and the legrest 116 in the wheelchair mode.

On the other hand, referring to FIG. 11 , as shown, the electric wheelchair 100 is transformed from the wheelchair mode to the comfort mode, and the frame unit 130 is tilted at a predetermined angle from the base 120 .

In this case, the first driving unit 142 is stretched and contracted to adjust the length, and the second driving unit 144 and the third driving unit 146 may be driven separately.

As shown in the drawing, when the frame unit 130 is tilted at a certain angle, the user can maintain a more comfortable posture in the electric wheelchair 100 that is transformed from the wheelchair mode to the comfort mode, and there is no strain on the back or back. won't

In particular, when the electric wheelchair 100 is deformed in the comfort mode, the user can adjust the tilting angle of the frame unit 130 to a desired shape according to the user's convenience.

In the case of the comfort mode, the frame unit 130 itself is tilted to adjust the inclination of the central support part 112 , thereby dispersing the load applied to the user and enabling a comfortable posture.

As described above, the electric wheelchair 100 according to the present invention can be changed into the wheelchair mode, the bed mode, and the comfort mode by the user's direct manipulation or by the manipulation of another person.

As described above, preferred embodiments according to the present invention have been described, and the fact that the present invention can be embodied in other specific forms without departing from the spirit or scope of the present invention in addition to the above-described embodiments is one of ordinary skill in the art. It is obvious to them. Therefore, the above-described embodiments are to be regarded as illustrative rather than restrictive, and accordingly, the present invention is not limited to the above description, but may be modified within the scope of the appended claims and their equivalents.

100: electric wheelchair
110: bed unit
112: central support
114: backrest
116: leg support
120: base
130: frame unit
140: drive unit
150: defecation unit

Claims (7)

A bed unit comprising a central support on which the user's buttocks are seated, a backrest that is tilted vertically from one side of the central support to support the user, and a leg support that is tilted from the other side of the central support and supports the user's legs;
a base provided with a plurality of moving wheels and provided under the bed unit;
a frame unit configured to support the bed unit at a predetermined height between the base and the bed unit, at least a portion of which is configured to be tiltable with the base;
a defecation unit having a receiving space therein and selectively ascending and descending from the lower part of the central support to close the user's buttocks to care for defecation;
a driving unit provided on at least one of the base and the frame unit to independently adjust a tilting angle of the backrest part, the legrest part, or the frame unit; and
a rollover prevention unit provided on the base or the frame unit to sense the center of gravity for the load transmitted from the upper part, and to move the position when changing the mode to maintain the center of gravity and prevent overturning; includes,
A wheelchair mode in which the backrest and the legrests are vertically arranged by a user's manipulation, a bed mode in which the backrest and the legrests are horizontally arranged, and a comfort mode in which the frame unit is tilted at a predetermined angle from the base adjusted to one of
The rollover prevention unit changes the position by moving a separate weight along the lateral direction on the base or the frame unit and prevents the center of gravity from being deflected to one side even if the posture is changed through movement of the center of gravity. Electric wheelchair available. According to claim 1,
The drive unit is
a first driving unit for vertically adjusting the tilting angle of the frame unit on the base;
a second driving unit provided on the frame unit to adjust the angle of the backrest; and
a third driving unit for adjusting the angle of the legrest;
An electric wheelchair capable of changing multiple posture modes, including 3. The method of claim 2,
At least one of the first driving unit to the third driving unit is configured as an actuator to extend and contract in length. An electric wheelchair capable of changing multiple posture modes. According to claim 1,
The comfort mode is
The electric wheelchair capable of changing multiple posture modes, characterized in that the frame unit is tilted upward in a state in which the backrest part is tilted upward at a predetermined angle and the legrest part is tilted downward by a predetermined angle. delete According to claim 1,
The defecation unit,
An electric wheelchair capable of changing multiple posture modes, comprising a accommodating part for accommodating the defecation discharged close to the user's buttocks and a washing part for washing the buttocks from the side of the accommodating part. According to claim 1,
The defecation unit,
An electric wheelchair capable of changing multiple posture modes configured to be detachable from the inside of the frame unit.

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