KR20250037032A - A rollator that supports the user standing up - Google Patents

Abstract

The embodiment includes a lower frame; a wheel part installed on the lower frame; a vertical frame installed on the lower frame; a side frame installed on the lower frame and having a height adjusted in response to the height adjustment of the vertical frame; a handle frame installed on the side frame; and a chair installed on the handle frame; and when a user switches from a state of sitting on the chair to a state of standing, a walking vehicle that supports the user's standing by adjusting at least one of the heights of the vertical frame, the side frame, and the angle of the chair can be provided.

Description

{A rollator that supports the user standing up}

The present invention relates to a walking device that assists a user in standing up.

The continuous increase in the elderly population requires the distribution of elderly-friendly products, and this demand increases the need for the development and evaluation of elderly-friendly products in terms of ergonomics and design. Because elderly-friendly products have not attracted the attention of many companies due to lack of marketability, a wide range of product development and research has not been provided. This has resulted in the elderly being forced to make insufficient choices and use products inappropriately. The analysis results of product safety accidents show that the accident rate for users over 60 is much higher than for users under 60. Looking at the specific analysis results, the location was home at 57.2%, followed by public administration and service areas at 14.7% and roads at 9.8%. In addition, by accident type, falls, trips, and slips accounted for 55.3%, collisions and impacts accounted for 7.5%, cuts or tears by objects accounted for 4.5%, and being pressed or caught accounted for 4.0%. Also, by accident location, the head and face area accounted for 26.4%, the legs and feet area accounted for 24%, the arms and hands area accounted for 18.1%, and the neck, stomach, back, and waist area accounted for 14.7% (Elderly Safety Status, Consumer Times, 4-5, October 2007). As can be seen from the types of accidents involving the elderly, falls account for more than half.

The most representative senior-friendly product that can prevent falls is a walker (rollator). Recently, various products with added functionality and improved convenience and durability have been introduced for walkers, and research and development are being continuously conducted, such as a rollator-trolley with an adjustable handle position according to use (Korean Patent Publication No. 2017-0134394), a walking state estimation method and device for a walking aid (Korean Patent No. 1908176), a Stroller rollator (US Patent No. 9974708), and a Foldable rollator (US Patent No. 9839571). Recently, the functions of walkers have been diversified to not only simply assist the user in moving, but also a walker in which the user can sit, such as Korean Patent No. 10-2402692, has been introduced. Thus, up to now, the focus has been on the development of technologies for improving walking stability for the elderly and technologies for supporting the sitting of users. However, as the main users of walking carts are the elderly or physically challenged, there is an increasing need for technologies that can support large changes in the user's posture, such as when the user switches from a sitting state to a standing state or vice versa.

Korean Patent Publication No. 2017-0134394 Korean Patent Publication No. 1908176 U.S. Patent Publication No. 9974708 U.S. Patent Publication No. 9839571 Korean Patent Publication No. 10-2402692

The present invention provides a walking device capable of assisting the movement of a user while the user is seated on a chair and the walking of a user while the user is standing.

In addition, the present invention provides a walking cart that is electrically height-adjusted to fit the user's body size.

In addition, the present invention provides a standing support mechanism that enables an elderly person, who is one of the main users of the walker, to stand up on his or her own without separate assistance, i.e., a walker that can support a user's standing when the user transitions from a seated state to a standing state.

In addition, the present invention provides a walking vehicle that controls the positional relationship of each component in response to a change in the user's natural movement when the user transitions from a sitting state to a standing state.

The embodiment includes a lower frame; a wheel part installed on the lower frame; a vertical frame installed on the lower frame; a side frame installed on the lower frame and having a height adjusted in response to the height adjustment of the vertical frame; a handle frame installed on the side frame; and a chair installed on the handle frame; and when a user switches from a state of sitting on the chair to a state of standing, a walking vehicle that supports the user's standing by adjusting at least one of the heights of the vertical frame, the side frame, and the angle of the chair can be provided.

In another aspect, a walking vehicle that supports a user's standing up can be provided, further including a shin support member that is installed on the vertical frame and pushes the user forward according to the adjustment of the angle of the chair when switching to the standing state, thereby supporting the user's shins and limiting the range of change in the user's posture in the forward-backward direction.

In another aspect, a walking carriage can be provided that supports a user's standing by increasing the height of the vertical frame and the side frame when switching to the standing state and rotating the chair in the direction in which the user stands.

In another aspect, a walking device can be provided that supports a user's standing by increasing the height of the vertical frame and the side frame when switching to the standing state.

In another aspect, the side frame includes first and second side frames installed on the lower frame and positioned with the user therebetween, the handle frame includes a first handle frame installed on the first side frame and a second handle frame installed on the second side frame, and the chair can provide a walking frame that supports the user's standing by being installed between the first and second handle frames.

In another aspect, the chair includes a first chair installed on the first handle frame and a second chair installed on the second handle frame, the first chair is configured to be rotatable around a connection point of the first handle frame, and the second chair is configured to be rotatable around a connection point of the second handle frame, so that the first chair rotates inwardly of the first handle frame and the second chair rotates inwardly of the second handle frame, thereby providing a walking cart that supports a user's standing up to secure a rearward space when the user walks.

In another aspect, a walking vehicle that supports a user's standing can be provided, further including a footrest installed on the lower frame and capable of placing the user's feet on it when the user is sitting.

The embodiment may provide a walking device that can assist a user's movement when the user is seated and when the user is walking when the user is standing.

Additionally, the embodiment can provide a walking cart whose height can be electrically adjusted to fit the user's body size.

Additionally, the embodiment may provide a walker that provides a standing support mechanism that allows an elderly person to stand up on their own without separate assistance.

Additionally, the embodiment may provide a walking frame capable of assisting a user in standing up when the user transitions from a seated state to a standing state.

In addition, the embodiment can provide a walking vehicle that controls the positional relationship of each component in response to a change in the user's natural motion when the user transitions from a sitting state to a standing state.

FIG. 1 is a perspective view of a walking vehicle that supports a user's standing up according to an embodiment of the present invention.
FIG. 2 is a view from a different angle of a walking vehicle that supports a user's standing up according to an embodiment of the present invention.
Figure 3 is a block diagram of a control unit according to an embodiment of the present invention.
FIG. 4 is a schematic diagram illustrating a state in which a user is seated on a walking vehicle that supports a user's standing up according to an embodiment of the present invention.
FIG. 5 is a schematic diagram illustrating a user moving with the assistance of a walking cart that supports the user's standing up according to an embodiment of the present invention.
Figure 6 schematically illustrates that the first and second chairs are separated from each other, rotated and fixed inwardly of the first and second handle frames, and the user moves with the assistance of the walker.
Figures 7 and 8 schematically illustrate the state of a user sitting and standing up on a walker from the side of the walker to explain a method of supporting a user's standing up.
FIGS. 9 and 10 illustrate a walking vehicle that assists a user in standing up according to another embodiment of the present invention from various angles.
Figures 11 and 12 schematically illustrate a user standing up with the assistance of a walking cart.

The present invention can be modified in various ways and has various embodiments, and thus specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention and the methods for achieving them will become clear with reference to the embodiments described in detail below together with the drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms. In the following embodiments, the terms first, second, etc. are not used in a limiting sense, but are used for the purpose of distinguishing one component from another component. In addition, the singular expression includes the plural expression unless the context clearly indicates otherwise. In addition, the terms include or have mean that the features or components described in the specification are present, and do not preclude the possibility that one or more other features or components may be added. In addition, the sizes of the components in the drawings may be exaggerated or reduced for the convenience of explanation. For example, the sizes and thicknesses of each component shown in the drawings are arbitrarily shown for the convenience of explanation, and therefore the present invention is not necessarily limited to what is shown.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components are given the same drawing reference numerals and redundant descriptions thereof will be omitted.

FIG. 1 is a perspective view of a mobility assistance device and a detachable walking vehicle according to an embodiment of the present invention, and FIG. 2 is a perspective view of a mobility assistance device and a detachable walking vehicle according to an embodiment of the present invention from a different angle.

Referring to FIGS. 1 and 2, a mobility assistance device and a detachable walking vehicle (10) according to an embodiment of the present invention may include a lower frame (100), a wheel part (200), a vertical frame (400), a side frame (500), a handle frame (600), and a chair (900).

The lower frame (100) may include first and second lower frames (110, 120) that are parallel to each other and spaced apart by a predetermined distance, and a third lower frame (130) that connects one end of each of the first and second lower frames (110, 120) and is perpendicular to them. The first to third lower frames (110, 120, 130) may be configured as a frame having a 'ㄷ' shape as a whole.

In various embodiments, each of the first to third subframes (110, 120, 130) may be configured as a bar type. In various embodiments, each of the first to third subframes (110, 120, 130) may have upper surfaces that are flush with each other. In various embodiments, the first to third subframes (110, 120, 130) may be formed integrally with each other.

The wheel part (200) may include a right wheel part (210) and a left wheel part (220).

The right wheel unit (210) may include first and second right wheel units (211, 212), and the left wheel unit (220) may include first and second left wheel units (221, 222).

The first and second right wheel parts (211, 212) are installed on the lower side of the first lower frame (110) and can be spaced apart from each other by a predetermined distance.

The first and second left wheel parts (221, 222) are installed on the lower side of the second lower frame (120) and can be spaced apart from each other by a predetermined distance.

Here, the second right wheel part (212) and the second left wheel part (222) can be configured to control the driving direction of the walking vehicle (10) by rotating at the same angle and in the same direction according to the control of the steering device. In various embodiments, when a user walks using the walking vehicle (10), the second right wheel part (212) and the second left wheel part (222) can be naturally rotated in the corresponding direction by a physical force applied to the walking vehicle (10) in the left or right direction, thereby allowing the walking vehicle (10) to move in the direction desired by the user.

The wheel unit (200) supports the walking vehicle (10) from the ground and enables the walking vehicle (10) to move. In various embodiments, the wheel unit (200) may be configured to be rotatable at a predetermined angle around a connecting axis between the wheel unit (200) and the lower frame (100), so that the walking vehicle (10) may be configured to move in various directions.

In various embodiments, the wheel of the wheel unit (200) may be configured to be rotatable by external power. The external power here may include not only a physical force applied to the walking vehicle (10) by a user of the walking vehicle (10), but also power provided by a device such as a motor. In order to provide power to the wheel unit (200), a power device may be installed within the lower frame (100) to provide power for the rotation of the wheel of the wheel unit (200).

Additionally, the wheel unit (200) may include a tire, a wheel wrapped by the tire, and a brake system for controlling the rotation speed of the wheel.

The vertical frame (400) can be installed on the lower frame (100). The vertical frame (400) can be installed on the third lower frame (130). The vertical frame (400) can be installed in the central area of the upper surface of the third lower frame (130). The vertical frame (400) can be positioned vertically with respect to the third lower frame (130).

The vertical frame (400) may include a first vertical frame (410), a second vertical frame (420) inserted into the inside of the first vertical frame (410) and having a portion of the upper surface protruded through the first vertical frame (410), and a third vertical frame (430) inserted into the inside of the second vertical frame (420) and having a portion of the upper surface protruded through the second vertical frame (420).

The first vertical frame (410) may be installed on the upper surface of the third lower frame (130). In various embodiments, the first vertical frame (410) and the third lower frame (130) may be formed integrally with each other. The second vertical frame (420) may be configured to be raised or lowered from the first vertical frame (410) with a portion inserted into the inner side of the first vertical frame (410). In various embodiments, the third vertical frame (430) may be configured to be raised or lowered from the second vertical frame (420) with a portion inserted into the inner side of the second vertical frame (420). That is, at least one of the second and third vertical frames (420, 430) may be raised or lowered in a direction vertical from the ground. In various embodiments, a power device for driving the elevation of at least one of the second and third vertical frames (420, 430) may be installed within the first vertical frame (410). In various embodiments, at least one of the second and third vertical frames (420, 430) may be configured to be driven upward and downward, and may be configured to be driven upward and downward sequentially.

The side frame (500) may include first and second side frames (540, 550).

The first side frame (540) is installed on the upper surface of the first lower frame (110) and can be positioned vertically with respect to the first lower frame (110), and the second side frame (550) is installed on the upper surface of the second lower frame (120) and can be positioned vertically with respect to the second lower frame (120). The first and second side frames (540, 550) can have symmetrical shapes and be positioned facing each other. The first and second side frames (540, 550) can be formed by extending from the lower frame (100) in a direction vertical to the lower frame (100) and extending in a form that is bent at a predetermined angle in the rearward (Y-direction) direction, which is the opposite direction of the front in which the walking vehicle (10) moves, at a predetermined height point.

In various embodiments, each of the first and second side frames (540, 550) may be configured to have an adjustable height. In various embodiments, each of the first and second side frames (540, 550) may be configured with two side frames, one of which is connected to the lower frame (100) and the other may be configured to be inserted into the other side frame and be able to be raised and lowered therefrom, and a power device for raising and lowering the side frame (500) may be installed within the side frame (500) so that the height can be adjusted through the raising and lowering motion of the side frame (500). In addition, the first and second side frames (540, 550) may be variable to the same height, and they are configured so that the height can be changed in the same manner as the height change of the vertical frame (400).

The side frame (500) may include first to third connecting frames (510, 520, 530).

The first connecting frame (510) may extend forward (in the -Y direction) from the first side frame (540) in a direction parallel to the ground, the second connecting frame (520) may extend forward (in the -Y direction) from the second side frame (550) in a direction parallel to the ground, and the third connecting frame (530) may connect the first and second connecting frames (510, 520) to each other and be positioned perpendicular to them. In various embodiments, the first to third connecting frames (510, 520, 530) may be configured integrally with each other.

One side of the first connecting frame (510) may be connected to the first side frame (540) and the other side may be connected to one side of the third connecting frame (530), and one side of the second connecting frame (520) may be connected to the second side frame (550) and the other side may be connected to the other side of the third connecting frame (530).

The central area of the third connecting frame (530) can be connected to the third vertical frame (430).

The vertical frame (400) and the first and second side frames (540, 550) can maintain the same height in synchronization with each other. That is, the vertical frame (400) and the first and second side frames (540, 550) can be driven up or down simultaneously to adjust the overall height of the handle frame (600).

In various embodiments, the first and second side frames (540, 550) may be height-variable, but there may be no separate power device for lifting and lowering. In this case, the height may be naturally varied by matching the height of the vertical frame (400) by a physical force applied to the first and second side frames (540, 550) through the first to third connecting frames (510, 520, 530) according to the height change by the vertical frame (400).

The handle frame (600) may include first and second handle frames (610, 620).

The first handle frame (610) can be connected to the first side frame (540), and the second handle frame (620) can be connected to the second side frame (550).

The first handle frame (610) may be composed of a first-first handle frame (611) and a first-second handle frame (612). The first-first handle frame (611) may be composed of a bar type, and the first-second handle frame (612) may be composed of a bar type by extending from one side of the first-first handle frame (611). An imaginary axis along the longitudinal direction of the first-first handle frame (611) and an imaginary axis corresponding to the longitudinal direction of the first-second handle frame (612) may have a predetermined angle with each other, and this angle may be 90 degrees or more. That is, the first-second handle frame (612) may be composed by extending while being bent at a predetermined angle from one side of the first-first handle frame (611). In addition, an outer point of the first-second handle frame (612) may be connected to an upper inner surface of the first side frame (540).

The second handle frame (620) may be composed of a second-first handle frame (621) and a second-second handle frame (622). The second-first handle frame (621) may be composed of a bar type, and the second-second handle frame (622) may be composed of a bar type by extending from one side of the second-first handle frame (621). An imaginary axis along the longitudinal direction of the second-first handle frame (621) and an imaginary axis corresponding to the longitudinal direction of the second-second handle frame (622) may have a predetermined angle with each other, and this angle may be 90 degrees or more. That is, the second-second handle frame (622) may be composed by extending while being bent at a predetermined angle from one side of the second-first handle frame (621). In addition, an outer point of the second-second handle frame (622) may be connected to an upper inner surface of the second side frame (550).

The user can hold the 1-1 handle frame (611) with the right hand and the 2-1 handle frame (621) with the left hand as needed.

The first-second handle frame (612) may be configured to be rotatable within a predetermined angle range about a connection point with the first side frame (540). In addition, the second-second handle frame (622) may be configured to be rotatable within a predetermined angle range about a connection point with the second side frame (550). The first and second handle frames (610, 620) are configured to be rotatable together in the same direction in synchronization with each other. In addition, a driving device for rotation of the first and second handle frames (610, 620) may be installed at a connection point between the first and second handle frames (610, 620) and the first and second side frames (540, 550).

In various embodiments, a driving device for rotation of the first handle frame (610) or the second handle frame (620) may be installed at a connection point between the first handle frame (610) and the first side frame (540) or a connection point between the second handle frame (620) and the second side frame (550), and when one handle frame is rotated by the driving device, the other handle frame structurally connected thereto may be configured to rotate together in the same direction and at the same angle.

One end of each of the first-second handle frame (612) and the second-second handle frame (622) is connected to the first-first handle frame (611) and the second-first handle frame (621), and a chair (900) can be installed between the inner surfaces of the other ends of the first-second handle frame (612) and the second-second handle frame (622).

The chair (900) may be made of a material that allows the user to feel comfortable when sitting, and the chair (900) may include a cushion.

The chair (900) may include a first chair (910) and a second chair (920).

The first chair (910) can be installed on the first-second handle frame (612), and the second chair (920) can be installed on the second-second handle frame (622).

In various embodiments, the first chair (910) and the second chair (920) may be configured to be detachable from each other. In various embodiments, when the first and second chairs (910, 920) are separated from each other, the first chair (910) may be configured to fold by rotating inwardly of the first-second handle frame (612), and the second chair (92) may be configured to fold by rotating inwardly of the second-second handle frame (622).

In addition, the chair (900) installed between the first and second handle frames (610, 620) can move up and down while drawing a predetermined rotation radius according to the rotation of the first and second handle frames (610, 620).

In various embodiments, the handle frame (600) may further include a side guide portion (630).

The side guide portion (630) may include first and second side guide portions (631, 632).

A first side guide part (631) may be installed in an area between the connecting point of the 1-1 handle frame (611) and the 1-2 handle frame (612) and the first chair (910) among the upper surface areas of the 1-2 handle frame (612). In addition, a second side guide part (632) may be installed in an area between the connecting point of the 2-1 handle frame (621) and the 2-2 handle frame (622) and the second chair (920) among the upper surface areas of the 2-2 handle frame (622).

Each of the first and second side guide parts (631, 632) may have a ring shape and protrude in the opposite direction (Y direction) to the moving direction of the walking vehicle (10).

The first and second side guide parts (631, 632) can guide the position of the user's hip area to prevent the user's hip area from moving to the left or right side of the chair (900) while the user is sitting on the chair (900).

The mobility assistance device and the detachable walking vehicle (10) according to an embodiment of the present invention may further include a front handle part (890). The front handle part (890) may be configured in a form that connects the first handle frame (610) and the second handle frame (620) to each other.

One side of the front handle part (890) can be configured in a way that connects the end of the 1-1 handle frame (611) (in the opposite direction to the connection point of the 1-1 handle frame (611) and the 1-2 handle frame (612)) and the end of the 2-1 handle frame (621) (in the opposite direction to the connection point of the 1-2 handle frame (612) and the 2-2 handle frame (622)) to each other, and can be configured in a way that allows a user to grip the front handle part (890) with both hands.

The mobility assistance device and the detachable walking vehicle (10) according to an embodiment of the present invention may further include a main handle part (800). The main handle part (800) may include first and second main handle parts (810, 820).

The first main handle part (810) can be installed on one side of the 1-1 handle frame (611), and the second main handle part (820) can be installed on one side of the 2-1 handle frame (621).

In various embodiments, the first main handle part (810) may be configured to be rotatable at various angles around the connection point with the 1-1 handle frame (611) and to be fixed in position after rotation, and the second main handle part (820) may be configured to be rotatable at various angles around the connection point with the 2-1 handle frame (621) and to be fixed in position after rotation.

The user can grip the first main handle part (810) with the right hand and the second main handle part (820) with the left hand.

The mobility assistance device and detachable walking vehicle (10) according to an embodiment of the present invention may further include a footrest (300).

The footrest (300) may include first and second footrests (310, 320).

The first and second footrests (310, 320) may be installed spaced apart from each other on the upper surface of the third lower frame (130). The first and second footrests (310, 320) may be positioned with the vertical frame (400) therebetween. The user may have a posture in which he or she sits on the chair (900) and places his or her right foot on the first footrest (310) and his or her left foot on the second footrest (320). The footrest (300) may be positioned to be inclined at a predetermined angle so that the user can feel the comfort of his or her legs when he or she places his or her feet on the footrest (300). In various embodiments, the footrest (300) may be configured to be rotatable within a predetermined angle range around a connection point with the third lower frame (130), and may be configured to maintain a specific angle after the rotation.

In various embodiments, at least one of the first and second footrests (310, 320) may be provided with a button that is operated by a physical force applied by a foot to control the driving speed of the walking vehicle (10).

The mobility assistance device and the detachable walking vehicle (10) according to an embodiment of the present invention may further include a shin support part (330).

The shin support (330) may further include first and second shin support (331, 332). The first and second shin support (331, 332) may be installed on the first vertical frame (410). In addition, the first and second shin support (331, 332) may be positioned with the first vertical frame (410) therebetween. After the user sits on the chair (900), while the walker (10) supports the user's standing, the shin areas of the user's two feet may contact the shin support (330), thereby preventing the user's two legs from moving forward and temporarily fixing and supporting the positions of the user's two legs.

In various embodiments, the shin support member (330) may be configured to have an adjustable height. The shin support member (330) may be manually or automatically adjusted in height.

Figure 3 is a block diagram of a control unit according to an embodiment of the present invention.

Referring to FIG. 3, the control unit (20) may include a controller (21), memory (22), and power supply (24).

The controller (21) may include a processor. The processor may be any integrated circuit (IC). In various embodiments, the processor may include one or more cores, each having on-die instruction and data caches. The processor may be a superscalar processor having a single pipeline or multiple pipelines. In another embodiment, the processor may be an application specific IC (ASIC). In yet another embodiment, the processor may include one or more computational blocks on a system-on-a-chip (SOC). Any family of transistors may be used to implement the processor. Examples include metal oxide semiconductor field effect transistors (MOSFETs) and bipolar junction transistors (BJTs).

The memory (22) is a configuration that stores data related to the operation of the walking vehicle (10). Here, the memory (22) can use a known storage medium, and for example, can use one or more of the known storage media such as ROM, PROM, EPROM, E EPROM, RAM, etc. In particular, a standing support mechanism program (application or applet) can be stored in the memory (22), and the stored information can be selected by the processor as needed.

The control unit (20) may further include a communication module (23). The communication module (23) may be implemented in various forms, such as a short-range communication module, a wireless communication module, a mobile communication module, or a wired communication module.

The power supply (24) can provide power required to drive the control unit (20). In various embodiments, the power supply (24) can include a battery module, and the battery module can be configured to be rechargeable using external power.

The communication module (23) can receive a remote command signal from an external terminal.

The control unit (20) can receive a remote command signal through the communication module (23), interpret the remote command signal, and control the overall operation of the walking vehicle (10) accordingly. In addition, the control unit (20) can also transmit the operation status information of the walking vehicle (10) to an external terminal through the communication module (23).

The driving device (30) may be composed of a plurality of driving devices, and may include, for example, a driving device for adjusting the height of the vertical frame (400) and the side frame (500) and a driving device for the rotational movement of the handle frame (600).

The driving device (30) can adjust the height of the vertical frame (400) and the side frame (500) and adjust the rotation angle of the handle frame (600) based on the command signal of the control unit (20).

In various embodiments, the driving device (30) may further include a driving device that enables the chair (900) to rotate about a point connected to the handle frame (600). In addition, the driving device (30) may rotate the chair (900) at a predetermined angle based on a command signal from the control unit (20).

In various embodiments, the driving device (30) may further include a driving device for driving the wheel unit (200). The driving device (30) may control the rotation of the wheel constituting the wheel unit (200) and the rotation angle of the wheel unit (200) about the central axis of the connection point between the wheel unit (200) and the lower frame (100) based on a command signal from the control unit (20). Accordingly, the walking vehicle (10) may be moved by its own power and may be moved in various directions.

In various embodiments, the main handle part (800) may be provided with a steering device capable of controlling the direction of movement of the walking vehicle (10). In addition, the main handle part (800) may be provided with an input device capable of controlling the driving speed of the walking vehicle (10), but is not limited thereto, and may be provided on the footrest (300).

In addition, a brake device for slowing down the speed of the walking vehicle (10) may be provided in the main handle part (800). The control part (20) detects the operation of the input device and the brake device and controls the wheel part (200), thereby controlling the moving direction and moving speed of the walking vehicle (10). In various embodiments, the brake device may be provided in the footrest (300).

In addition, a button for supporting the standing of the walking vehicle (10) may be provided on the main handle part (800). However, this is not limited to this, and the button for supporting the standing of the walking vehicle (10) may be installed at another location. The control part (20) may control the driving device (30) to perform the standing support operation of the walking vehicle (10) in response to receiving a command signal for supporting the standing of the walking vehicle (10) through the button for supporting the standing of the walking vehicle (10).

In various embodiments, the main handle part (800) may be provided with an input device for adjusting the seating position. However, the present invention is not limited thereto, and the input device for adjusting the seating position may be installed in another part of the walker (10). The control part (20) may control the driving device (30) in response to receiving a command signal through the input device for adjusting the seating position, thereby adjusting the height of the vertical frame (400) and the first and second side frames (540, 550). In addition, the control part (20) may adjust the rotation angle of the handle frame (600) in response to receiving a command signal through the input device for adjusting the seating position. The user may adjust the height and the grip position of the handle frame (600) when sitting so as to maintain a comfortable seating posture on the walker (10) by operating the input device for adjusting the seating position.

FIG. 4 is a schematic diagram illustrating a state in which a user is seated on a mobility assistance device and a detachable walking vehicle according to an embodiment of the present invention, FIG. 5 is a schematic diagram illustrating a user moving with the assistance of a mobility assistance device and a detachable walking vehicle according to an embodiment of the present invention, and FIG. 6 is a schematic diagram illustrating a state in which a first and second chairs are separated from each other, rotated and fixed inwardly of the first and second handle frames, and a user moves with the assistance of the walking vehicle. In addition, FIGS. 7 and 8 are schematic diagrams illustrating a state in which a user is seated on and stands up in a walking vehicle from the side of the walking vehicle in order to explain a method for supporting a user's standing up.

Referring to FIGS. 1 and 4, a user can sit on a walking vehicle (10).

The user can place both feet or one foot on the footrest (300) while sitting on the chair (900). Then, the user can ride the walker (10) in various directions by operating the input device and the brake device provided on the main handle part (800). In various embodiments, the user can also operate the input device and the brake device provided on the footrest (300) to control the driving speed of the walker (10).

Referring to FIGS. 5 and 6, the user can stand up with the support of the walker (10) and walk while assisted by the walker (10). At this time, the user can walk together with the walker (10) and move in various directions while assisting the movement of the walker (10) itself by operating the input device and the brake device provided on the main handle part (800). In addition, when the user completes standing up, the chair (900) is separated into first and second chairs (910, 920), and each of them rotates so that the first chair (910) rotates inwardly of the first handle frame (610) and is fixed, and the second chair (920) rotates inwardly of the second handle frame (620) and is fixed, thereby opening up space toward the rear of the walker (10), thereby ensuring ample space for the user's movement when walking.

Referring to FIGS. 7 and 8, the control unit (20) can control the driving device (30) to perform a stand-up support operation of the walker (10). The control unit (20) can control at least one of the height of the vertical frame (400) and the first and second side frames (540, 550), the rotation angle of the chair (900), and the rotation angle of the handle frame (600) in response to receiving a command signal through the stand-up support button. For example, by increasing the height of the vertical frame (400) and the first and second side frames (540, 550), power can be provided in an upward direction necessary for the user to establish a posture when standing up, and by rotating the chair (900), the user's buttocks area can be pushed toward the front of the walker (10), thereby providing auxiliary power necessary for the user to stand up. In addition, the position of the user's two arms can be moved downward in accordance with the rotation of the handle frame (600) in response to the rotation of the chair (900). In addition, the chair (900) pushes the user's buttocks toward the front of the walker (10) and at the same time, the shin support (330) supports the user's shins, so that the chair (900) and the shin support (330) can limit the range of change in the user's forward and backward position. Accordingly, the walker (10) provides auxiliary power to the user in response to the movement that the user naturally takes when standing up by his or her own strength. Therefore, the walker (10) can help the user to stand up naturally without exerting much force by changing the position of each component constituting the walker (10) in response to the change in the user's posture due to the user's standing up.

In various embodiments, the controller (21) can detect height information of the vertical frame (400) and angle information of the first and second handle frames (610, 620) when the user is seated. In addition, the controller (21) can detect height information of the vertical frame (400) and angle information of the first and second handle frames (610, 620) when the user is standing. The controller (21) can estimate the position of the user's shin based on the height information of the vertical frame (400) and angle information of the first and second handle frames (610, 620) when the user is seated and when the user is standing. That is, the controller (21) detects the height information of the chair (900) based on the height of the vertical frame (400) when the user is seated and the angle information of the first and second handle frames (610, 620), estimates the distance between the user's knee and the ground, and first estimates the position of the shin. Then, the controller (21) estimates the distance between the user's waist and the ground based on the height of the vertical frame (400) and the angle information of the first and second handle frames (610, 620) when the user is standing, and secondarily estimates the position of the shin. Then, the controller (21) can finally estimate the position of the user's shin based on the first and second estimates. Then, the controller (21) can adjust the height of the shin support member (330) based on the estimated position of the user's shin. Accordingly, the chair (900) pushes the user's buttocks toward the front of the walker (10) while the shin support member (330) accurately supports the user's shins, thereby maintaining the balance of the force applied to the front and back of the user, thereby enabling the user to maintain a sense of balance in the posture when standing up.

FIGS. 9 and 10 illustrate a walking vehicle that assists a user in standing up according to another embodiment of the present invention from various angles.

Referring to FIGS. 9 and 10, a walking vehicle (10) that supports a user's standing according to another embodiment of the present invention may include a lower frame (100), a wheel part (200), a vertical frame (400), a side frame (500), a handle frame (600), and a chair (900).

The lower frame (100) may include first and second lower frames (110, 120) that are parallel to each other and spaced apart by a predetermined distance, and a third lower frame (130) that is connected to one end of each of the first and second lower frames (110, 120) and positioned perpendicular to them. One side of the first lower frame (110) and one side of the third lower frame (130), which are connection points between the first lower frame (110) and the third lower frame (130), may be fastened inside the first housing (101), and one side of the second lower frame (120) and the other side of the third lower frame (130), which are connection points between the second lower frame (120) and the third lower frame (130), may be fastened inside the second housing (102). The first to third sub-frames (110, 120, 130) may be configured as a frame having an overall 'ㄷ' shape, and the third sub-frame (130) may be positioned higher from the ground than the first and second sub-frames (110, 120), but is not limited thereto.

The wheel part (200) may include a right wheel part (210) and a left wheel part (220).

The right wheel unit (210) may include first and second right wheel units (211, 212), and the left wheel unit (220) may include first and second left wheel units (221, 222).

The first right wheel part (211) is installed on the lower side of the first lower frame (110), and the second right wheel part (212) is installed in the first housing (101) and can be spaced apart from each other by a predetermined distance.

The first left wheel part (221, 222) is installed on the lower side of the second lower frame (120), and the second left wheel part (222) is installed in the second housing (102) and can be spaced apart from each other by a predetermined distance.

Here, the second right wheel part (212) and the second left wheel part (222) may be configured to control the driving direction of the walking vehicle (10) by rotating at the same angle and in the same direction under the control of the steering device. In various embodiments, the second right wheel part (212) may be fastened to a steering gear that rotates under the control of the steering device inside the first housing (101), and the second left wheel part (222) may be fastened to a steering gear that rotates under the control of the steering device inside the second housing (102). In various embodiments, when a user walks using the walking vehicle (10), the second right wheel part (212) and the second left wheel part (222) may naturally rotate in the corresponding direction by a physical force applied to the walking vehicle (10) in the left or right direction, thereby allowing the walking vehicle (10) to move in the direction desired by the user.

The wheel unit (200) supports the walking vehicle (10) from the ground and enables the walking vehicle (10) to move. In various embodiments, the wheel unit (200) may be configured to be rotatable at a predetermined angle around a connecting axis between the wheel unit (200) and the lower frame (100), so that the walking vehicle (10) may be configured to move in various directions.

In various embodiments, the wheel of the wheel unit (200) may be configured to be rotatable by external power. The external power here may include not only a physical force applied to the walking vehicle (10) by a user of the walking vehicle (10), but also power provided by a device such as a motor. In order to provide power to the second right wheel unit (212) and the second left wheel unit (222), a power device for providing power for the rotation of the second right wheel unit (212) and the second left wheel unit (222) may be installed within the first and second housings (101, 102). In various embodiments, in order to provide power to the first right wheel unit (211) and the first left wheel unit (221), a power device for providing power for the rotation of the first right wheel unit (211) and the first left wheel unit (221) may be installed within the first and second lower frames (110, 120).

In addition, the wheel unit (200) includes a tire and a wheel wrapped by the tire, and a brake system for controlling the rotation speed of the second right wheel unit (212) and the second left wheel unit (222) can be installed in the second right wheel unit (212) and the second left wheel unit (222).

The vertical frame (400) can be installed on the lower frame (100). The vertical frame (400) can be installed on the third lower frame (130). The third lower frame (130) and the vertical frame (400) can be connected to each other in a manner that penetrates the side surface of the lower portion of the vertical frame (400). The vertical frame (400) can be positioned vertically with respect to the third lower frame (130).

The vertical frame (400) may be positioned perpendicularly to each other as two vertical frames. The movable vertical frame (402) positioned on the upper side of the two vertical frames may be configured to move upward or downward from the fixed vertical frame (401) positioned on the lower side. A vertical movement power device (490) for moving the movable vertical frame (402) may be provided on the fixed vertical frame (401).

The side frame (500) may include first and second side frames (540, 550).

The first side frame (540) is connected to the first lower frame (110) and can be positioned vertically with respect to the first lower frame (110), and the second side frame (550) is connected to the second lower frame (120) and can be positioned vertically with respect to the second lower frame (120). The first side frame (540) and the first lower frame (110) can be connected to each other within the first housing (101), and the second side frame (550) and the second lower frame (120) can be connected to each other within the second housing (102).

The first and second side frames (540, 550) may have symmetrical shapes and may be positioned facing each other. The first and second side frames (540, 550) may be formed by extending from the lower frame (100) in a direction perpendicular to the lower frame (100) and extending in a form that is bent at a predetermined angle in the rearward (Y-direction) direction, which is the opposite direction of the forward direction in which the walking vehicle (10) moves, at a predetermined height point.

In various embodiments, each of the first and second side frames (540, 550) may be configured to have an adjustable height. In various embodiments, each of the first and second side frames (540, 550) may be configured with two side frames, one of which is connected to the lower frame (100) and the other may be configured to be inserted into the other side frame and be able to be raised and lowered therefrom, and a power device for raising and lowering the side frame (500) may be installed within the side frame (500) so that the height can be adjusted through the raising and lowering motion of the side frame (500). In addition, the first and second side frames (540, 550) may be variable to the same height, and they are configured so that the height can be changed in the same manner as the height change of the vertical frame (400).

The side frame (500) may include first to third connecting frames (510, 520, 530).

The first connecting frame (510) may extend forward (in the -Y direction) from the first side frame (540) in a direction parallel to the ground, the second connecting frame (520) may extend forward (in the -Y direction) from the second side frame (550) in a direction parallel to the ground, and the third connecting frame (530) may connect the first and second connecting frames (510, 520) to each other and be positioned perpendicular to them. In various embodiments, the first to third connecting frames (510, 520, 530) may be configured integrally with each other.

One side of the first connecting frame (510) may be connected to the first side frame (540) and the other side may be connected to one side of the third connecting frame (530), and one side of the second connecting frame (520) may be connected to the second side frame (550) and the other side may be connected to the other side of the third connecting frame (530).

The central region of the third connecting frame (530) can be connected to the vertical frame (400). In various embodiments, the third connecting frame (530) can be connected to the vertical frame (400) in a form that penetrates the left and right sides of the upper side of the vertical frame (400).

The vertical frame (400) and the first and second side frames (540, 550) can maintain the same height in synchronization with each other. That is, the vertical frame (400) and the first and second side frames (540, 550) can be driven up or down simultaneously to adjust the overall height of the handle frame (600).

In various embodiments, the first and second side frames (540, 550) may be height-variable, but there may be no separate power device for lifting and lowering. In this case, the height may be naturally varied by matching the height of the vertical frame (400) by a physical force applied to the first and second side frames (540, 550) through the first to third connecting frames (510, 520, 530) according to the height change by the vertical frame (400).

Additionally, the side frame (500) may further include a shin support fastening frame (560). The shin support fastening frame (560) may be connected between the first and second side frames (540, 550).

The handle frame (600) may include first and second handle frames (610, 620).

The first handle frame (610) can be connected to the first side frame (540), and the second handle frame (620) can be connected to the second side frame (550).

The first handle frame (610) may be composed of a first-first handle frame (611) and a first-second handle frame (612). The first-first handle frame (611) may be composed of a bar type, and the first-second handle frame (612) may be composed of a bar type by extending from one side of the first-first handle frame (611). A virtual axis along the longitudinal direction of the first-first handle frame (611) and a virtual axis corresponding to the longitudinal direction of the first-second handle frame (612) may have a predetermined angle with each other. That is, the first-second handle frame (612) may be composed by extending while bending downward at a predetermined angle from one side of the first-first handle frame (611). In addition, one point of the first-second handle frame (612) may be connected to the upper end of the first side frame (540).

The second handle frame (620) may be composed of a second-first handle frame (621) and a second-second handle frame (622). The second-first handle frame (621) may be composed of a bar type, and the second-second handle frame (622) may be composed of a bar type by extending from one side of the second-first handle frame (621). A virtual axis along the longitudinal direction of the second-first handle frame (621) and a virtual axis corresponding to the longitudinal direction of the second-second handle frame (622) may have a predetermined angle with each other. That is, the second-second handle frame (622) may be composed by extending while bending downward at a predetermined angle from one side of the second-first handle frame (621). In addition, one point of the second-second handle frame (622) may be connected to the upper end of the second side frame (550).

The user can hold the 1-1 handle frame (611) with the right hand and the 2-1 handle frame (621) with the left hand as needed.

In addition, the handle frame (600) may further include a third handle frame (640). The third handle frame (640) may include a third-first handle frame (641) formed by extending upward from the first-second handle frame (612) while forming a predetermined angle with the first-second handle frame (612), and a third-second handle frame (642) formed by extending upward from the second-second handle frame (622) while forming a predetermined angle with the second-second handle frame (622).

In addition, the handle frame (600) may further include a fourth handle frame (660) that connects the first-first handle frame (611) and the second-first handle frame (621) to each other. The user may hold the fourth handle frame (660) with both hands as needed.

In addition, the handle frame (600) may further include a fifth handle frame (670) that connects the first-second handle frame (612) and the second-second handle frame (622) to each other. The user may hold the fifth handle frame (670) with both hands as needed.

A chair (900) can be installed between the 3-1 handle frame (641) and the 3-2 handle frame (642).

The chair (900) may be made of a material that allows the user to feel comfortable when sitting, and the chair (900) may include a cushion.

The chair (900) may include a first chair (910) and a second chair (920).

The first chair (910) can be installed on the 3-1 handle frame (641), and the second chair (920) can be installed on the 3-2 handle frame (642).

In various embodiments, the first chair (910) and the second chair (920) may be configured to be fastened or unfastened to each other. In various embodiments, when the first and second chairs (910, 920) are unfastened, the first chair (910) may be configured to fold by rotating inwardly of the 3-1 handle frame (641), and the second chair (92) may be configured to fold by rotating inwardly of the 3-2 handle frame (642).

The first and second chairs (910, 920) can rotate at the same angle in synchronization with each other. For their rotation, a rotation drive device can be installed on the third handle frame (640).

In addition, as the first and second handle frames (610, 620) rotate, the chair (900) installed between the first and second handle frames (610, 620) is released from the first and second chairs (910, 92) and can rotate while drawing a predetermined rotation radius.

The mobility assistance device and detachable walking vehicle (10) according to an embodiment of the present invention may further include a footrest (300).

The footrest (300) can be installed on the third lower frame (130). The footrest (300) can be connected to a vertical connecting frame (140) formed by extending downward from the lower side of the third lower frame (130) with the vertical frame (400) in between.

In various embodiments, the footrest (300) may be configured to be connected to the vertical connecting frame (140) and move forward or backward.

The user can assume a posture of placing both feet on the footrest (300) while sitting on the chair (900). The footrest (300) may be configured to be inclined at a predetermined angle so that the user can feel the comfort of the legs when placing the feet on the footrest (300). In various embodiments, the footrest (300) may be configured to be rotatable within a predetermined angle range around a connection point therewith while being connected to the vertical connection frame (140), and may be configured to maintain a specific angle after the rotation.

In various embodiments, the footrest (300) may be moved forward when the user walks using the walker (10). The user may also manipulate the position of the footrest (300) through a control unit provided on the handle frame (600).

In various embodiments, the footrest (300) may be provided with a button that is operated by a physical force applied by the foot to control the driving speed of the walking vehicle (10).

The mobility assistance device and the detachable walking vehicle (10) according to an embodiment of the present invention may further include a shin support part (330).

The shin support member (330) may be installed on the shin support fastening frame (560). The front of the shin support member (330) may face the user and may be positioned at a predetermined angle on the shin support fastening frame (560). That is, the shin support member (330) may be installed on the shin support fastening frame (560) at a predetermined incline so that the upper side thereof is positioned closer to the front of the walking vehicle (10) than the lower side thereof.

After the user sits on the chair (900), while the walker (10) supports the user's standing, the shins of the user's two feet come into contact with the shin support member (330), thereby preventing the user's two legs from moving forward and temporarily fixing and supporting the position of the user's two legs.

In various embodiments, the shin support member (330) may be configured to have an adjustable height. The shin support member (330) may be manually or automatically adjusted in height, and may be configured to rotate around the connection point of the shin support fastening frame (560) to change the angle formed with respect to the ground.

Figures 11 and 12 schematically illustrate a user standing up with the assistance of a walking cart.

Referring to FIGS. 9 to 12, a user can stand up with the support of the walker (10) and walk while assisted by the walker (10). At this time, the user can move in various directions while walking together with the walker (10) by assisting the movement of the walker (10) itself through the operation of the input device and the brake device provided on the main handle part (800). In addition, when the user has completed standing up, the chair (900) is separated into first and second chairs (910, 920), and each of them rotates so that the first chair (910) rotates inwardly of the first handle frame (610) and is fixed, and the second chair (920) rotates inwardly of the second handle frame (620) and is fixed, thereby opening up space toward the rear of the walker (10), thereby ensuring ample space for the user's movement when walking.

In addition, the control unit (20) can control the driving device (30) to perform the stand-up support operation of the walker (10). The control unit (20) can control at least one of the height of the vertical frame (400) and the first and second side frames (540, 550) and the rotation angle of the chair (900) in response to receiving a command signal through the stand-up support button. For example, power can be provided in the upward direction necessary for the user to establish a posture when standing up by increasing the height of the vertical frame (400) and the first and second side frames (540, 550). In addition, by supporting the user's buttocks area through the rotation of the chair (900) and simultaneously pushing the walker (10) toward the front, auxiliary power necessary for the user to stand up can be provided. In addition, the user can release the force from the buttocks lifting operation and have the buttocks and shins come into close contact with the shin support member (330). That is, the chair (900) pushes the user's buttocks toward the front of the walker (10) and at the same time, the shin support (330) supports the user's shins, so that the chair (900) and the shin support (330) can limit the range of change in the user's forward and backward position. Accordingly, the walker (10) provides auxiliary power to the user in response to the user's natural movement when standing up by his or her own strength. Accordingly, the walker (10) can help the user to stand up naturally without exerting much force by changing the positions of each component constituting the walker (10) in response to the change in the user's posture due to the user's standing up.

In addition, a user who can move on his own power can move while leaning on the walker (10) with his buttocks supported on the chair (900). In addition, the user can lightly support his buttocks on the chair (900) and support his shins on the shin support member (330) so that the user's lower body is in contact between the chair (900) and the shin support member (330), allowing the user with a bent back to move while leaning on the walker (10).

In various embodiments, the controller (21) can detect height information of the vertical frame (400) when the user is seated. In addition, the controller (21) can detect height information of the vertical frame (400) when the user is standing. The controller (21) can estimate the position of the user's shin based on the height information of the vertical frame (400) when the user is seated and when the user is standing. That is, the controller (21) detects height information of the chair (900) according to the height of the vertical frame (400) when the user is seated, estimates the distance between the user's knee and the ground, and first estimates the position of the shin, and secondarily estimates the distance between the user's waist and the ground according to the height of the vertical frame (400) when the user is standing, and then finally estimates the position of the user's shin based on the first and second estimates. And, the controller (21) can adjust the height and/or angle of the shin support (330) based on the estimated position of the user's shin. Accordingly, while the chair (900) pushes the user's buttocks toward the front of the walker (10), the shin support (330) accurately supports the user's shin, thereby maintaining the balance of the force applied to the front and back of the user, thereby allowing the user to maintain a sense of balance in the posture when standing up.

The embodiments of the present invention described above may be implemented in the form of program commands that can be executed through various computer components and recorded on a computer-readable recording medium. The computer-readable recording medium may include program commands, data files, data structures, etc., alone or in combination. The program commands recorded on the computer-readable recording medium may be those specially designed and configured for the present invention or those known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical recording media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, and hardware devices specially configured to store and execute program commands, such as ROMs, RAMs, and flash memories. Examples of the program commands include not only machine language codes generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter, etc. The hardware devices may be changed into one or more software modules to perform processing according to the present invention, and vice versa.

The specific implementations described in the present invention are only exemplary embodiments and do not limit the scope of the present invention in any way. For the sake of brevity of the specification, descriptions of conventional electronic components, control systems, software, and other functional aspects of the systems may be omitted. In addition, the connections or lack of connections of lines between components illustrated in the drawings are merely exemplary of functional connections and/or physical or circuit connections, and may be replaced or represented as various additional functional connections, physical connections, or circuit connections in an actual device. In addition, if there is no specific mention such as “essential,” “important,” etc., the component may not be absolutely necessary for the application of the present invention.

In addition, although the detailed description of the present invention has been described with reference to preferred embodiments of the present invention, it will be understood by those skilled in the art or having common knowledge in the art that various modifications and changes can be made to the present invention without departing from the spirit and technical scope of the present invention as described in the claims below. Accordingly, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be determined by the claims.

10: Pedestrian
100: Subframe
101: 1st Housing
101, 102: Second Housing
102: Second Housing
110: 1st subframe
120: Second subframe
130: Third subframe
140: Vertical connecting frame
20: Control Unit
200: Wheel
21: Controller
210: Right wheel
211: 1st right wheel section
212: 2nd right wheel section
22: Memory
220: Left wheel
221: 1st left wheel section
222: Second left wheel section
23: Communication module
24: Power supply
30: Drive Unit
300: Footrest
310: 1st footrest
320: 2nd footrest
330: Shin support
400: vertical frame
401: Fixed vertical frame
402: Movable vertical frame
410: First vertical frame
420: Second vertical frame
430: 3rd vertical frame
490: Vertical movement power unit for
500: Side Frame
510: 1st connecting frame
520: 2nd connecting frame
530: Third connecting frame
540: 1st side frame
540, 550: 2nd side frame
550: 2nd side frame
560: Shin support fastening frame
600: Handle Frame
610: 1st handle frame
611: 1-1 Handle Frame
612: 1-2 handle frame
620: 2nd handle frame
621: 2-1 Handle Frame
622: 2-2 Handle Frame
630: Side guide section
631: 1st side guide section
632: 2nd side guide section
640: 3rd handle frame
641: 3-1 Handle Frame
642: 3-2 Handle Frame
660: 4th handle frame
670: Fifth handle frame
800: Main handle
810: 1st main handle section
820: Second main handle section
890: Front handle
900: Chair
910: Chair 1
910, 92: 2nd chair
910, 920: 2nd chair
92: Second Chair
920: Second Chair

Claims (7)

subframe;
Wheel unit installed on the above lower frame;
A vertical frame installed on the above lower frame;
A side frame installed on the above lower frame and having its height adjusted in response to the height adjustment of the vertical frame;
A handle frame installed on the above side frame;
including a chair installed on the above handle frame;
When a user transitions from a seated state on the chair to a standing state, the user's standing is supported by adjusting at least one of the height of the vertical frame, the side frame, and the angle of the chair.
A walker that assists the user in standing up. In the first paragraph,
Further comprising a shin support member installed on the vertical frame to support the user's shins and limit the range of change in the user's posture in the forward-backward direction when the user is pushed forward according to the adjustment of the angle of the chair when switching to the standing state;
A walker that assists the user in standing up. In the second paragraph,
When switching to the standing state, the height of the vertical frame and the side frame increases, and the chair rotates in the direction in which the user stands.
A walker that assists the user in standing up. In the second paragraph,
When switching to the above standing state, the height of the vertical frame and the side frame increases.
A walker that assists the user in standing up. In the first paragraph,
The above side frame includes first and second side frames installed on the lower frame and positioned with the user interposed therebetween,
The above handle frame includes a first handle frame installed on the first side frame and a second handle frame installed on the second side frame.
The above chair is installed between the first and second handle frames.
A walker that assists the user in standing up. In clause 5,
The above chair includes a first chair installed on the first handle frame and a second chair installed on the second handle frame,
The first chair is configured to be rotatable around the connection point of the first handle frame, and the second chair is configured to be rotatable around the connection point of the second handle frame, so that the first chair rotates inwardly of the first handle frame and the second chair rotates inwardly of the second handle frame to secure a rearward space when the user walks.
A walker that assists the user in standing up. In the first paragraph,
Further comprising a footrest installed on the lower frame and capable of placing the user's feet while the user is seated;
A walker that assists the user in standing up.