KR102248491B1 - Multi purpose wheelchair - Google Patents

Abstract

The present invention relates to a multi-purpose safety wheelchair that can double the convenience of use. According to the present invention, the multi-purpose safety wheelchair comprises: a wheelchair body manufactured by assembly of metal frame; a wheel unit coupled to a lower portion of the wheelchair body and moving the wheelchair body; a backrest connected to the wheelchair body, on which the patient leans; a pair of handle parts connected to the wheelchair body and gripping the wheelchair body to be moved by the wheel unit; a sliding seat movably coupled to the wheelchair body as a seat; and a seat forward/backward driving part coupled to the wheelchair body and configured to drive the sliding seat forward and backward with respect to the wheelchair body.

Description

Multi purpose wheelchair

The present invention relates to a multi-purpose safety wheelchair, and more specifically, it is possible to move a patient with no legs or discomfort to a destination, as well as to easily and comfortably move the patient to a high position such as a bed. It relates to a multi-purpose safety wheelchair that can double the convenience.

Wheelchair (wheelchair) refers to a chair with wheels so that a person with limited legs or a person with disabilities can move while sitting.

As for the wheelchair, a manual wheelchair 10 as shown in FIG. 1 is generally used. The manual wheelchair 10 includes a seat 12 and a footrest 13 forming a predetermined space for a user to sit, a vehicle body 11 for supporting the seat 12 and the footrest 13, and a vehicle body 11 ) Is mounted on both sides of the main wheel 14 mounted to be movable by rotational force, and an auxiliary wheel 15 mounted to advantageously fix the center when moving and stopping.

Although such a manual wheelchair 10 is common, it is inconvenient in use in that it can be driven only when a person pushes or pulls it.

Accordingly, in recent years, as shown in FIG. 2, an electric wheelchair 20 is disclosed that is equipped with an electric means to drive electric motors. The electric wheelchair 20 has a convenient structure that allows the user to travel alone without a separate helper.

Meanwhile, the wheelchairs 10 and 20 of FIGS. 1 and 2 are used according to their use and purpose, and these wheelchairs 10 and 20 move a person who is not free of legs or a person with discomfort. It only fits and does not provide other functions, such as when moving a person with discomfort, that is, a patient to a bed.

In other words, after moving to the destination by seating the patient in the manual wheelchair 10 of FIG. 1 or the electric wheelchair 20 of FIG. 2, inevitably, in order to move the patient to the bed from the destination, the patient has to be lifted, resulting in inconvenience in use. Considering the following, the need for a multi-purpose safety wheelchair that can cope with this situation emerges.

Korean Intellectual Property Office Application No. 10-2013-0054156 Korean Intellectual Property Office Application No. 10-2016-0016729 Korean Intellectual Property Office Application No. 10-2018-0142341 Korean Intellectual Property Office Application No. 10-2020-0063956

It is an object of the present invention to provide a multi-purpose safety wheelchair that can increase convenience in use by being able to move a patient to a destination with no legs or a physical discomfort, as well as easily and comfortably moving the patient to a high position such as a bed. To provide.

The object is a wheelchair body manufactured by assembling a metal frame; A wheel unit coupled to a lower portion of the wheelchair body and moving the wheelchair body; A back support connected to the wheelchair body and on which the patient leans; A pair of handles connected to the wheelchair body and gripping the wheelchair body to be moved by the wheel unit; A sliding seat movably coupled to the wheelchair body as a seating position; And a seat forward and backward driving unit coupled to the wheelchair body and configured to drive the sliding seat forward and backward with respect to the wheelchair body.

The seat forward and backward driving part may include a first seat forward and backward driving part connected to one side of the sliding sheet and configured to drive one side of the sliding sheet forward and backward; And a second seat forward and backward driving unit connected to the other side of the sliding seat and configured to drive the other side of the sliding sheet forward and backward, and the first seat forward and backward driving unit and the second seat forward and backward driving unit have the same structure. , Can be synchronously controlled.

A sheet up/down driving unit connected to the first seat forward/reverse driving unit and configured to up/down drive the first sheet forward/reverse driving unit and one side of the sliding seat connected thereto.

A signal input unit for inputting a signal for moving one side of the sliding sheet up/down with respect to the other side; And a controller controlling operations of the seat forward/reverse driving unit and the seat up/down driving unit based on an input value of the signal input unit.

The sliding sheet may be made of a flexible elastic material while being stretchable so that one side and the other side can be deformed relative to each other.

An armrest portion coupled to the wheelchair body may be further included, and the armrest portion may be independently positioned only in an area of the second seat forward/reverse driving unit.

According to the present invention, it is possible to move a patient with no legs or discomfort to the destination, as well as to easily and comfortably move the patient to a high position such as a bed, so that convenience in use can be doubled.

1 and 2 are structural diagrams of a general wheelchair.
3 is a schematic side view of a multipurpose safety wheelchair according to a first embodiment of the present invention.
FIG. 4 is a structural diagram of a sliding sheet in an advanced state in FIG. 3.
5 is a front view of FIG. 3.
6 is a diagram illustrating a state in which the sliding seat is operated in FIG. 5.
7 is a state diagram of use of the multi-purpose safety wheelchair of FIG. 3.
8 is a control block diagram of the multipurpose safety wheelchair of FIG. 3.
9 is a schematic front view of a multi-purpose safety wheelchair according to a second embodiment of the present invention.
10 is a diagram illustrating a state in which the sliding seat is operated in FIG. 9.
11 is a state diagram of use of the multi-purpose safety wheelchair of FIG. 9.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the embodiments.

However, since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text.

For example, since the embodiments may have various modifications and various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical idea.

In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all or only such effects, the scope of the present invention should not be understood as being limited thereto.

In the present specification, the present embodiment is provided to complete the disclosure of the present invention, and to fully inform the scope of the invention to those of ordinary skill in the art to which the present invention pertains. And the invention is only defined by the scope of the claims.

Accordingly, in some embodiments, well-known components, well-known operations, and well-known techniques have not been described in detail in order to avoid obscuring interpretation of the present invention.

Meanwhile, the meaning of the terms described in the present invention is not limited to the dictionary meaning, and should be understood as follows.

When a component is referred to as being "connected" to another component, it should be understood that although it may be directly connected to the other component, another component may exist in the middle. On the other hand, when a component is referred to as being "directly connected" to another component, it should be understood that there is no other component in the middle. On the other hand, other expressions describing the relationship between components, that is, "between" and "just between" or "neighboring to" and "directly neighboring to" should be interpreted as well.

Singular expressions are to be understood as including plural expressions unless the context clearly indicates otherwise, and terms such as "comprises" or "have" refer to the specified features, numbers, steps, actions, components, parts, or these. It is to be understood that it is intended to designate that a combination exists and does not preclude the presence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the field to which the present invention belongs, unless otherwise defined.

Terms defined in commonly used dictionaries should be interpreted as having meanings in the context of related technologies, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the description of the embodiment, the same reference numerals are assigned to the same components, and the description of the same reference numerals will be omitted in some cases.

(Example 1)

3 is a schematic side view of a multipurpose safety wheelchair according to a first embodiment of the present invention, FIG. 4 is a structural view of a sliding seat in an advanced state in FIG. 3, FIG. 5 is a front view of FIG. 3, and FIG. 6 is FIG. A view of a state in which the sliding seat is in operation, FIG. 7 is a use state diagram for the multipurpose safety wheelchair of FIG. 3, and FIG. 8 is a control block diagram of the multipurpose safety wheelchair of FIG.

Referring to these drawings, the multi-purpose safety wheelchair 100 according to the present embodiment can move a patient with no legs or a discomfort to the destination, as well as a high position such as the bed 10 easily and comfortably. It can be moved so that the convenience of use can be doubled.

The multi-purpose safety wheelchair 100 according to the present embodiment capable of providing such an effect includes a wheelchair body 110, and the following components are mounted on the wheelchair body 110 for each position.

The wheelchair body 110 is a structure that forms the exterior skeleton of the multi-purpose safety wheelchair 100 according to the present embodiment. The backrest part 112, the sliding seat 130, the seat forward and backward driving part 140, the seat up/down driving part 150, etc., should be mounted for each position, and the wheelchair body 110 is stiff to support them. It can be made with this excellent metal frame.

The wheel unit 120 is coupled to the lower portion of the wheelchair body 110. The wheel unit 120 serves to move the wheelchair body 110 to a destination by being coupled to the lower portion of the wheelchair body 110 for each position.

The wheel unit 120 may include a wheel 121 and a wheel support 122 for rotatably supporting the wheel 121, and four wheel units may be disposed under the wheelchair body 110.

The wheelchair body 110 is provided with a backrest part 112 on which the patient seated on the sliding seat 130 leans against the back. The backrest part 112 may be coupled to the wheelchair body 110 so that it can be replaced in the wheelchair body 110.

A pair of handles 111 are connected to the wheelchair body 110. By holding the pair of handles 111 and pushing or pulling the wheelchair body 110, the wheelchair body 110 may move to the destination by the action of the wheel unit 120.

As such, the multi-purpose safety wheelchair 100 according to the present embodiment takes a manual method as shown in FIG. 1 in that it can be moved by pushing or pulling. However, the sliding seat 130 has a partial transmission structure in that it can move electrically.

The armrest 113 is coupled to the wheelchair body 110. In this embodiment, the armrest part 113 is independently located only in the area of the second sheet forward/reverse driving part 140b to be described later. In other words, the armrest portion 113 is provided on only one side, not both, as in FIGS. 1 and 2 in the related art. This may be one method for moving the patient to the bed 10 to the side without the armrest part 113 as shown in FIG. 7.

The sliding seat 130 forms a seat for the patient. However, the difference from the prior art is that the sliding seat 130 of the present embodiment is capable of moving forward and backward, and one side thereof is capable of moving up/down.

To this end, in particular, the sliding sheet 130 may be made of an elastic material so that one side of the sliding sheet 130 can be moved up/down. In other words, the sliding sheet 130 of this embodiment is made of an elastic material that is flexible and stretchable so that one side and the other side can be deformed relative to each other. Therefore, only one side can be heard as shown in FIG. 6.

On the other hand, the multi-purpose safety wheelchair 100 according to the present embodiment so that the sliding seat 130 can be moved forward and backward, and one side thereof can move up/down, the seat forward/reverse driving unit 140 and the seat up / The down drive unit 150 is mounted.

The seat forward and backward driving unit 140 is coupled to the wheelchair body 110 and serves to drive the sliding seat 130 forward and backward with respect to the wheelchair body 110.

The sheet forward/reverse driving unit 140 is connected to one side of the sliding sheet 130, a first sheet forward/reverse driving unit 140a for driving one side of the sliding sheet 130 forward and backward, and the other side of the sliding sheet 130. It is connected to and may include a second seat forward and backward driving unit 140b for driving the other side of the sliding seat 130 forward and backward.

In this case, the structure of the first seat forward and backward driving unit 140a and the second seat forward and backward driving unit 140b may be the same, and may be synchronously controlled. That is, the first seat forward and backward driving unit 140a and the second seat forward and backward driving unit 140b may drive the sliding seat 130 forward and backward as a structure of a motor and a ball screw, and at this time, both motor controls can be synchronized. have. The controller 170 is responsible for this.

The seat up/down drive unit 150 is connected to the first seat forward/reverse drive unit 140a, and up/down one side of the first seat forward/reverse drive unit 140a and the sliding seat 130 connected thereto. ) It plays a role of driving.

The seat up/down drive unit 150 can also be applied in a structure of a motor and a ball screw, but may be replaced with a cylinder structure in some cases.

Meanwhile, a signal input unit 160 and a controller 170 are further provided in the multipurpose safety wheelchair 100 according to the present embodiment.

The signal input unit 160 inputs a signal for moving one side of the sliding seat 130 up/down with respect to the other side as shown in FIG. 6. The signal input unit 160 may be provided in the form of a button on the wheelchair body 110 or may be applied as a separate remote control type.

The controller 170 controls the operation of the seat forward/reverse driving unit 140 and the seat up/down driving unit 150 based on an input value of the signal input unit 160.

The controller 170 performing this role may include a central processing unit 171 (CPU), a memory 172 (MEMORY), and a support circuit 173 (SUPPORT CIRCUIT).

The central processing unit 171 is a variety of industrially applicable in order to control the operation of the seat forward and backward driving unit 140 and the seat up / down driving unit 150 based on the input value of the signal input unit 160 in this embodiment. It may be one of the computer processors.

The memory 172 (MEMORY) is connected to the central processing unit 171. The memory 172 may be installed locally or remotely as a computer-readable recording medium, and can be easily used such as random access memory (RAM), ROM, floppy disk, hard disk, or any digital storage type. It may be at least one or more memories.

The support circuit 173 (SUPPORT CIRCUIT) is coupled with the central processing unit 171 to support the typical operation of the processor. The support circuit 173 may include a cache, a power supply, a clock circuit, an input/output circuit, a subsystem, and the like.

In the present embodiment, the controller 170 controls the operation of the seat forward/reverse driving unit 140 and the seat up/down driving unit 150 based on the input value of the signal input unit 160, such as a series of control processes, etc. It can be stored at 172. Typically software routines may be stored in memory 172. Software routines can also be stored or executed by other central processing units (not shown).

Although the process according to the present invention has been described as being executed by a software routine, it is also possible that at least some of the processes of the present invention are performed by hardware. As such, the processes of the present invention may be implemented by software executed on a computer system, or by hardware such as an integrated circuit, or by a combination of software and hardware.

Hereinafter, the operation of the multi-purpose safety wheelchair 100 will be described.

First, the patient is mounted in the multi-purpose safety wheelchair 100 according to the present embodiment and moved to the side of the bed 10, and then the sliding seat 130 is moved forward through the seat forward/reverse driving unit 140 at that position to move the patient. Create location conditions for moving.

Then, by the action of the seat up/down driving unit 150, the first seat forward and backward driving unit 140a and one side of the sliding seat 130 connected thereto are up (up) as shown in A of FIG. 7. Then, since the sliding sheet 130 on the side without the armrest part 113 is raised to the height of the bed 10, the patient may be moved to the bed 10 in the direction B of FIG. 7 in this state. This makes it very convenient and safe to transfer the patient to the bed 10.

According to this embodiment, which acts based on the structure as described above, it is possible to move a patient with no legs or discomfort to the destination, as well as to easily and comfortably move the patient to a high position such as the bed 10. So that the convenience in use can be doubled.

(Example 2)

9 is a schematic front view of a multi-purpose safety wheelchair according to a second embodiment of the present invention, FIG. 10 is a view of a state in which the sliding seat is operated in FIG. 9, and FIG. 11 is a state diagram of use of the multi-purpose safety wheelchair of FIG. 9 .

Referring to these drawings, the multi-purpose safety wheelchair 200 according to the present embodiment also includes a wheelchair body 110, and a backrest part 112, a sliding seat 230, and a seat forward and backward driving part in the wheelchair body 110 (140), the seat up/down drive unit 150, and the like, are mounted for each position.

On the other hand, the sliding sheet 230 applied to the present embodiment is also made of an elastic material that is flexible and stretchable so that one side and the other side can be deformed relative to each other. However, in the case of the present embodiment, a wrinkle portion 231 is further provided at the central portion of the sliding sheet 230.

When the corrugated portion 231 is provided in the central portion of the sliding sheet 230 as described above, the first sheet forward and backward driving unit 140a and one side of the sliding sheet 130 connected thereto by the action of the seat up/down driving unit 150 There is an advantage in that the up operation can be performed more flexibly.

Even if the present embodiment is applied, a patient with no legs or discomfort can be moved to the destination, as well as the ease and comfort of moving the patient to a high position such as the bed 10, so that the convenience of use can be doubled.

As described above, the present invention is not limited to the described embodiments, and it is obvious to those of ordinary skill in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, it should be said that such modifications or variations belong to the claims of the present invention.

10: bed 100: multi-purpose safety wheelchair
110: wheelchair body 112: backrest
113: armrest 120: wheel unit
111: handle 130: sliding seat
140: seat forward and backward driving part 140a: first seat forward and backward driving part
140b: second seat forward and backward driving unit 150: seat up/down driving unit
160: signal input unit 170: controller

Claims (6)

delete delete Wheelchair body manufactured by assembling a metal frame;
A wheel unit coupled to a lower portion of the wheelchair body and moving the wheelchair body;
A back support connected to the wheelchair body and on which the patient leans;
A pair of handles connected to the wheelchair body and gripping the wheelchair body to be moved by the wheel unit;
A sliding seat movably coupled to the wheelchair body as a seating position; And
It is coupled to the wheelchair body, comprising a seat forward and backward driving unit for driving the sliding seat forward and backward with respect to the wheelchair body,
The seat forward and backward driving unit,
A first sheet forward and backward driving unit connected to one side of the sliding sheet and configured to drive one side of the sliding sheet forward and backward; And
It is connected to the other side of the sliding sheet, and includes a second sheet forward and backward driving unit for driving the other side of the sliding sheet back and forth,
The structure of the first seat forward and backward driving part and the second seat forward and backward driving part are the same, and synchronously controlled,
Further comprising a seat up/down driving unit connected to the first seat forward/reverse driving unit and configured to up/down drive the first sheet forward/reverse driving unit and one side of the sliding seat connected thereto,
The sliding sheet is made of a flexible elastic material while being stretchable and flexible so that one side and the other side can be deformed relative to each other,
A corrugated portion is provided in the central portion of the sliding sheet to make the up/down drive flexible
Multi-purpose safety wheelchair, characterized in that.
The method of claim 3,
A signal input unit for inputting a signal for moving one side of the sliding sheet up/down with respect to the other side; And
Multipurpose safety wheelchair, characterized in that it further comprises a controller for controlling the operation of the seat forward/backward driving unit and the seat up/down driving unit based on the input value of the signal input unit.
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