TW202011917A - Mobility device - Google Patents

Abstract

A mobility device (1) comprising: a main frame (3), a median to lateral motion transfer assembly comprising: an elongated body support member (13b), an elongated rotation transfer member (13c) configured to rotate relative to the body support member (13b), a first lateral motion transfer member configured to be fixedly connected to the rotation transfer member (13b), a second lateral motion transfer member configured to be fixedly connected to the rotation transfer member (13b), a lateral first upper body support rotational drive member configured to be driven by the first lateral motion transfer member, a lateral second upper body support rotational drive member configured to be driven by the second lateral motion transfer member, the first upper body support rotational drive member and the second upper body support rotational drive member being configured to rotate about a drive member axis (A6) offset from the central longitudinal axis (A2) of the rotation transfer member (13c), a first connection interface rotationally fixedly connected to the first upper body support rotational drive member, a second connection interface rotationally fixedly connected to the second upper body support rotational drive member; and an upper body support (13h) having a first upper body support connection interface and a second upper body support connection interface, the first connection interface being configured to be detachably connected rotationally fixed to the first upper body support connection interface and the second connection interface being configured to be detachably connected rotationally fixed to the second upper body support connection interface, thereby enabling detachable connection of the upper body support (13h) to the median to lateral motion transfer assembly.

Description

Mobile device

This disclosure generally relates to mobile devices.

A mobile device such as a wheelchair typically has a chassis on which a seating system is arranged and wheels are thereby suspended. The seating system includes seats, backrests, and armrests.

Typically, the position of the backrest can be set by the actuating device. The chassis is generally bulky because it especially contains large battery packs, which are arranged centrally. Furthermore, a certain amount of ground clearance is required, while the seat height should be as low as possible. Incidentally, the tilt/lift system for the seating system can be arranged centrally. Due to these circumstances, the actuating device is normally arranged sideways on a certain side of the chassis. Since the force must be transmitted from one side to control the backrest, the backrest is generally designed to have extremely high torsional stiffness in order to withstand this force. As a result, the physical size and weight of the wheelchair are adversely affected. Incidentally, the force transferred from one side to the backrest complicates the wheelchair.

In view of the above, the general purpose of the present disclosure is to provide a mobile device that solves or at least alleviates the problems of the prior art.

Therefore, a mobile device is provided, which includes a main frame and an intermediate-to-lateral movement transfer assembly including an elongated body support having a central longitudinal axis parallel to an intermediate plane of the mobile device, the body support passing through the middle The pivot is connected and pivotally connected to the main frame; an elongated rotary transfer member constructed to rotate relative to the body support, the rotary transfer member having a central longitudinal axis extending laterally relative to the central longitudinal axis of the body support; The lateral motion transfer member, which is constructed to be fixedly connected to the rotary transfer member; the second lateral motion transfer member, which is constructed to be fixedly connected to the rotary transfer member; the lateral first upper body supports the rotary drive member, which is constructed Driven by the first lateral movement transfer member; the lateral second upper body supports the rotary drive member, which is constructed to be driven by the second lateral movement transfer member; the first upper body supports the rotary drive member and the second upper body supports the rotary drive member Built to rotate around the axis of the drive member offset from the central longitudinal axis of the rotary transfer member; the first connection interface, which is fixedly connected to the first upper body to support the rotary drive member; the second connection interface, which is fixedly connected to the rotation Support the rotary drive to the second upper body. The mobile device further includes an upper body support, which has a first upper body support connection interface and a second upper body support connection interface, the first connection interface is configured to be detachably connected and rotatably fixed to the first upper body support connection interface, and the second connection interface Constructed to be detachably connected and rotatably fixed to the second upper body support connection interface, whereby the upper body support can be detachably connected to the middle to lateral movement transfer assembly, wherein the rotating transfer member is around its center in the first direction The rotation of the longitudinal axis causes the upper body support to rotate about the axis of the drive member by a corresponding amount in the first direction.

In conventional wheelchairs, the backrest cannot be designed to have a pivot point that coincides with the hip joint of the user. Therefore, a more complex solution is needed to pivot the backrest. Furthermore, as noted earlier, the backrest must be extremely twisted.

Due to the design that the elongated body support is arranged in the middle plane of the mobile device, the first and second upper body support rotation driving members are hip joint driving members. The drive member axis is therefore at the same height and coincides or substantially coincides with the hip joint of the user. The axis of the driving member is the axis of the hip joint, and the upper body support is constructed to rotate around this. This can greatly reduce the complexity of the rotation control of the upper body support. As a result, the upper body support need not have torsional stiffness, for example, but can be made mechanically flexible. The upper body support can therefore be made thinner and placed closer to the user's body. The footprint of the mobile device therefore becomes smaller.

The first upper body support connection interface and the second upper body support connection interface can detach or remove the upper body support transfer assembly from the middle to the lateral movement, and thus detach or remove from the mobile device. Different types of upper body supports can therefore be connected in a simple way to the intermediate to lateral movement transfer assembly.

The mobile device may be a wheelchair or mobility assistance device, a personal transporter, or a personal mobile device.

The rotary transfer member may extend laterally through the body support.

The main frame may have an elongated shape. The main frame may have a central longitudinal axis that coincides with the middle plane (ie, middle sagittal plane) of the mobile device.

According to an embodiment, the body support and the rotation transfer member have a T shape, and the body support forms a T-shaped bottom, and the rotation transfer member forms a T-shaped top.

Therefore, the power transferred from the intermediate position can be provided on both sides to the first lateral movement transfer member and the second lateral movement transfer member.

According to an embodiment, the first upper body support connection interface and the second upper body support connection interface are the only connection points for connecting the upper body support to the rest of the mobile device.

According to an embodiment, the upper body support includes a back support.

According to an embodiment, the back support is mechanically flexible.

According to an embodiment, the upper body support includes a movement restriction appliance attached to the back support, wherein the fabric is configured to be worn by the user.

According to an embodiment, the movement restricting tool forms upper body clothing to inhibit the user from facing the back support.

According to an embodiment, the upper body garment is a vest.

According to an embodiment, the back support is divided into two lateral parts, which are configured to move laterally with each other to adjust the width of the back support.

An embodiment includes a leg rest, which is provided on the main frame or pivotally connected to the main frame, wherein rotation of the leg rest relative to the body support rotates the rotation transfer member.

According to an embodiment, the upper body support includes a neck support.

According to an embodiment, the first lateral movement transfer member is connected to the first lateral end of the rotary transfer member, and the second lateral movement transfer member is connected to the second lateral end of the rotary transfer member.

According to an embodiment, the mobile device is a wheelchair.

According to an embodiment, the main frame is an elongated structure having a central longitudinal axis that coincides with the middle plane of the mobile device.

According to a second aspect of the present disclosure, there is provided a mobile device system comprising: a mobile device according to the first aspect; and a plurality of different types of upper body supports, each having a first upper body support connection interface and a second upper body support connection The interface, the upper body support is constructed as a first connection interface and a second connection interface that are interchangeably attached to the mobile device.

According to an embodiment, each upper body support is constructed for different user needs.

Generally speaking, all words used in the scope of patent application are to be interpreted according to their ordinary meaning in the technical field, unless otherwise clearly defined here. All references to one/the element, equipment, assembly, appliance, etc. are to be interpreted openly as at least one of the referenced elements, equipment, assembly, appliances, etc., unless expressly stated otherwise.

The inventive concept will now be described more fully below with reference to accompanying drawings, in which the drawings show exemplary embodiments. However, the inventive concept can be embodied in many different forms, and should not be construed as being limited to the embodiments listed here; rather, these embodiments are provided by way of example, so that this disclosure will be thorough and complete, and will invent The scope of the concept is fully communicated to those skilled in this technology. The same numbers throughout the text refer to the same components.

FIG. 1 shows a perspective view of an example of the mobile device 1. The mobile device 1 is displayed in the first position. The mobile device 1 may be a mobile device for disabled users. The mobile device 1 can be regarded as a new type of wheelchair in a sense, which replaces an existing type of wheelchair.

The mobile device 1 includes a main frame 3, a driving wheel swing arm 5 (only one of which is visible), a driving wheel 7, a rear wheel swing arm 9, a rear wheel 11, a body support system 13, and a leg rest 15.

The example main frame 3 has an elongated shape. The main frame 3 is basically a beam-like structure. The main frame 3 has a central longitudinal axis, which coincides with the middle plane (ie, middle sagittal plane) of the mobile device 1.

The driving wheel swing arm 5 is pivotally connected to the main frame 3. Each drive wheel 7 is connected to an individual drive wheel swing arm 5. The mobile device 1 further includes a wheel motor (not shown). Each wheel motor is constructed to drive individual drive wheels 7. Each wheel motor can, for example, be incorporated into a separate wheel hub. The mobile device 1 also includes a control system, which is constructed as a control wheel motor.

The rear wheel swing arm 9 is pivotally connected to the main frame 3. In this example, the mobile device 1 includes two identical rear wheel swing arms, but may alternatively include a single rear wheel swing arm, and a single rear wheel or two rear wheels are connected. The mobile device 1 may include a rear wheel arm actuating device (not shown) configured to control the angle of the rear wheel swing arm between the rear wheel swing arm 9 and the main frame 3 independently of the control of the wheel motor.

The mobile device 1 further includes one or more batteries. The battery is configured to drive the mobile device 1, such as the wheel motor, the leg rest actuation device, and the body support actuation device disclosed herein. The one or more batteries can be, for example, lithium batteries or lithium ion batteries, but any other battery type with similar power performance per unit volume is suitable for this purpose.

The body support system 13 is pivotally connected to the main frame 3 via an intermediate hub connection 17. According to the example shown in FIG. 1, the body support system 13 includes a seat 13a.

FIG. 2 schematically shows a simplified model of the mobile device 1. The seat 13a has been removed to expose the components of the body support system 13. The body support system 13 includes an elongated body support 13b, an elongated rotary transfer member 13c, an elongated first support structure 13d, and an elongated second support structure 13e. The seat 13a is normally arranged on the body support 13b. The body support system 13 further includes a first armrest 13f, a second armrest 13g, and an upper body support 13h. The leg rest 15 may also form part of the body support system 13.

The first support structure 13d extends between the first end of the rotary transfer member 13c and the upper body support 13h. The second support structure 13e extends between the second end of the rotation transfer member 13c and the upper body support 13h. The rotary transfer member 13c may be included in the elongated rotary transfer member housing 14, as shown in FIG. The first support structure 13d and the second support structure 13e may be fixedly connected to the rotation transfer case 14 shown in FIG. The first support structure 13d and the second support structure 13e may be rotatably fixed relative to the rotation transfer member housing 14. The rotation transfer member housing 14 may be rotatably fixed with respect to the body support 13b.

The body support 13b may be basically a beam-like structure. The body support 13b has a central longitudinal axis A1 coinciding with the middle plane of the mobile device 1. The body support 13b is pivotally connected to the main frame 3 via an intermediate hinge connection 17. In particular, the first end of the body support 13b is pivotally connected to the main frame 3 via the intermediate hinge connection 17. The body support 13b therefore extends longitudinally in the direction of the middle plane of the mobile device 1 away from the middle pivot connection 17.

The rotation transfer member 13c is configured to rotate relative to the body support 13b. The rotation transfer member 13c can therefore rotate freely with respect to the body support 13b. The rotation transfer member 13c is rotatably connected with respect to the body support 13b, and extends through the body support 13b at the second end of the body support 13b. The rotation transfer member 13c has an intermediate rotation connection 16 which is connected to the intermediate hub connection 17. The body support 13b and the rotation transfer member 13c form a T-shape, while the body support 13b forms a T-shaped bottom, and the rotation transfer member forms a T-shaped top.

The rotation transfer member 13c extends laterally with respect to the central longitudinal axis A1 of the body support 13b. The rotation transfer member 13 has a central longitudinal axis A2 that intersects the central longitudinal axis A1 of the body support 13b at a right angle.

The leg rest 15 may have an elongated shape. The leg rest 15 is pivotally connected to the main frame 3 via the same intermediate pivot connection 17 that pivotally connects the main frame 3 and the body support 13b. The pivot connection between the leg rest 15 and the main frame 3 and the pivot connection between the body support 13b and the main frame 3 are therefore around the same pivot axis.

The illustrated mobile device 1 includes a leg rest actuating device 21 that is pivotally connected to the main frame 3 and the leg rest 15. The leg rest actuating device 21 is configured to control the pivotal movement of the leg rest 15 relative to the main frame 3. The leg rest actuating device 21 is thus constructed to control the leg rest pivot angle α between the leg rest 15 and the main frame 3. The legrest pivot angle α may be, for example, the angle between the central longitudinal axis A3 of the main frame 3 extending through the intermediate pivot connection 17 and the central longitudinal axis A4 of the legrest 15. Alternatively, the legrest pivot angle α can be defined as, for example, the angle of the central longitudinal axis A4 of the legrest 15 in the coordinate system of the main frame 3 whose origin is at the center of the intermediate pivot connection 17.

The illustrated mobile device 1 includes a body support actuating device 23. The body support actuator 23 is pivotally connected to the main frame 3 and the body support 13b. The body support actuating device 23 is configured to control the pivotal movement of the body support 13b relative to the main frame 3. The body support actuating device 23 is thus configured to control the body support angle β between the body support 13b and the main frame 3. The body support angle β may be, for example, the angle between the central longitudinal axis A3 of the main frame 3 extending through the intermediate pivot connection 17 and the central longitudinal axis A1 of the body support 13b. Alternatively, the body support angle β can be defined as, for example, the angle of the central longitudinal axis A1 of the body support 13b in the coordinate system of the main frame 3 whose origin is at the center of the intermediate hub connection 17 .

The leg rest 15 is connected to the rotation transfer member 13c by rotation transfer. The leg rest 15 causes the corresponding rotation of the rotation transfer member 13c by the pivoting of the leg rest actuator 21. The leg rest 15 and the rotation transfer member 13c thus form a partial symmetrical rotation transfer assembly. In particular, the central pivot movement of the leg rest 15 relative to the main frame 3 is transferred on both sides by rotating the transfer member 13c.

The leg rest may alternatively be fixedly arranged to the main frame. The leg rest may, for example, include two leg supports that extend from the elongated body that forms the main frame.

Figures 3a and 3b show an example of a rotary transfer assembly for the mobile device 1. In this example, the transfer of rotary motion is provided by a chain or belt system connected to a rotary drive. The leg rest 15 is connected to the main frame 3 via an intermediate hub connection 17. The leg rest 15 has a first rotation drive 25. The first rotation driving member 25 is fixed to the leg rest 15. In particular, the first rotation drive 25 is rotationally fixed with respect to the leg rest 15. The first rotary drive member 25 may be, for example, a sprocket or friction drive wheel.

In this example, the rotation transfer member 13c is provided with a second rotation driving member 27. The second rotation driving member 27 is fixed to the rotation transfer member 13c. In particular, the second rotation driving member 25 is rotationally fixed with respect to the rotation transfer member 13c. The second rotary drive member 27 may be, for example, a sprocket wheel or a friction drive wheel.

The first rotation driving member 25 is alternately connected to the second rotation driving member 27 so that the rotation of the first rotation driving member 25 is transferred to the second rotation driving member 27. The first rotary drive member 25 can be connected to the second rotary drive member 27 by a chain, a belt or the like 29 for example. In the case of chains, the first and second rotary drive members 25 and 27 may be sprockets; in the case of belts, they may be friction drive wheels. Chains, straps or similar appliances may be arranged in the body support 13b.

In operation, when the leg rest 15 is pivoted by the leg rest actuator 21, the first rotary drive 25 fixed to the leg rest 15 moves the chain, belt or the like, which in turn causes the second rotary drive 27 Spin. This amount of rotation is the same as the amount of pivoting of the leg rest 15. Since the second rotation drive member 27 is rotatably fixed to the rotation transfer member 13, the rotation transfer member 13c also rotates.

In the case where the leg support extends from the main frame, the first rotary driving member may be fixed to the main frame. The relative rotational movement between the main frame and the body support will in this case move the chain, belt or similar appliance.

The rotation transfer assembly in this example is provided with a first lateral movement transfer member 31 fixed to the rotation transfer member 13c and a second lateral movement transfer member 33 fixed to the rotation transfer member 13c. The first lateral movement transfer member 31 is rotatably fixed to the first lateral end of the rotation transfer member 13c, and the second lateral movement transfer member 33 is rotatably fixed to the second lateral end of the rotation transfer member 13c. The first lateral movement transfer member 31 is a third rotary drive member, which is, for example, a sprocket or friction drive wheel. The second lateral motion transfer member 33 is a fourth rotary drive member, which is, for example, a sprocket or friction drive wheel.

In Fig. 3a, the insides of the first support structure 13d and the second support structure 13e are shown. The example rotation transfer assembly includes a first upper body support rotation drive member 35, which is interactively connected to the first lateral movement transfer member 31. These components may be included in the first support structure 13c. The first upper body support rotary drive 35 may be, for example, a sprocket or friction drive wheel. The first upper body supporting rotary driving member 35 is interactively connected to the first lateral motion transfer member 31 by a chain, belt or the like 36. The first upper body support rotary drive 35 is fixedly connected to the upper body support 13h. In particular, the first upper body support rotation drive 35 may be rotatably fixed relative to the upper body support 13h. Therefore, when the rotation transfer member 13c is rotating, the first lateral movement transfer member 31 also rotates, so that the chain, belt, or the like 36 connecting the first lateral movement transfer member 31 and the first upper body support rotation drive member 35 mobile. The first upper body supports the rotation drive 35 and thus rotates.

The rotation transfer assembly also includes a second upper body support rotation drive member 37, which is interactively connected to the second lateral movement transfer member 33. These components may be included in the second support structure 13e. The second upper body support rotary drive 37 may be a sprocket or friction drive wheel. The second upper body supporting rotary driving member 37 is alternately connected to the second lateral movement transferring member 33 by a chain, belt or the like 38. The second upper body support rotary drive 37 is fixedly connected to the upper body support 13h. In particular, the second upper body support rotary drive 37 can be rotatably fixed relative to the upper body support 13h. Therefore, when the rotation transfer member 13c is rotating, the second lateral movement transfer member 33 also rotates, so that the chain, belt, or the like 38 connecting the second lateral movement transfer member 33 and the second upper body support rotation drive member 37 mobile. The second upper body supports the rotation drive 37 and thus rotates.

Since the first upper body support rotation drive 35 is fixed to the upper body support 13h and the second upper body support rotation drive 37 is fixed to the upper body support 13h, the upper body support 13h also rotates.

FIG. 4 shows another example of the rotation transfer assembly for the mobile device 1. In this example, the rotational movement transfer is provided by the connection system 30. The leg rest 15 is connected to the main frame 3 via an intermediate hub connection 17. The body support 13b is pivotally connected to the main frame 3 via an intermediate hinge connection 17. The link system 30 includes a first link 22 that is pivotally connected to the main frame 3 via an intermediate hinge connection 17. In particular, the first link 22 may have an end pivotally connected to the main frame 3 via an intermediate hinge connection 17. The first link 22 extends along the leg rest 15, preferably along the middle plane of the mobile device 1, and is pivotally connected to the leg rest 15 at the second end of the first link 22. The coupling system 30 includes a second coupling member 26 having a longitudinal extension along the middle plane of the mobile device 1, and it is fixedly connected to the rotation transfer member 13 c at the first end of the second coupling member 26. The linking system 30 also includes a third link 28 that extends parallel to the body support 13b and is connected to the second end of the second link 26 at one end. The third link 28 is connected to the first link 22 at the other end thereof, so that the body support 13b, the first link 22, the second link 26, and the third link 28 form a parallelogram. Therefore, when the leg rest 15 is pivoted by the leg rest actuating device 21, the first link 22 pivots about the intermediate hinge connection 17, and the third link 28 is moved. The second link 26 moves thereby, causing the rotation transfer member 13c to rotate.

The exemplary coupling system 30 further has a first lateral motion transfer member 31' that is fixedly connected to the first lateral end of the motion transfer member 13c. The first lateral movement transfer member 31' is thus rotationally fixed relative to the movement transfer member 13c. The first lateral movement transfer member 31' is a fourth coupling member. The fourth link forms the first lateral secondary link 39 of the portion, which forms a parallelogram. The backrest 13h may be fixedly connected to the sixth link 43 of the first lateral secondary link 39. The first lateral connection 39 can be included in the first support structure 13 by way of example.

The coupling system 30 has a second lateral movement transfer member 33' which is fixedly connected to the second lateral end of the movement transfer member 13c. The second lateral movement transfer member 33' is thus rotationally fixed relative to the movement transfer member 13c. The second lateral movement transfer member 33' is a fifth coupling member. The fifth coupling member forms a second lateral sub-connection 41 that forms a parallelogram. The upper body support 13h may be fixedly connected to the seventh link 45 of the second lateral secondary link 41.

Operationally, when the rotation transfer member 13c is rotating due to interaction with the pivoting leg rest 15, the first lateral movement transfer member 31' and the second lateral movement transfer member 33' follow the rotation of the rotation transfer member 13c, As a result, the structure of the parallelogram of the first lateral sub-connection 39 and the second lateral sub-connection 41 is changed. The pivoting amount of the upper body support 13h thereby will be the same as the pivot movement of the leg rest 15, which may be the angle Δα of the leg rest pivot angle α.

In the above-mentioned variation of the example, the first armrest 13f and the second armrest 13g can also move simultaneously with the upper body support 13h. The two armrests 13f and 13g can therefore be fixed relative to the upper body support 13h according to this example. When the leg rest 15 is pivoting, the first armrest 13f and the second armrest 13g are thereby rotated or pivoted by the same upper body support 13h.

FIG. 5 shows a block diagram of controlling specific components of the mobile device 1. The mobile device 1 may especially include a control system 47. The control system 47 is configured to control the leg rest actuating device 21 and the body support actuating device 23. In particular, the control system 47 can thereby control the leg rest pivot angle α and the body support angle β. If necessary, the control system 47 can simultaneously control the leg rest actuation device 21 and the body support actuation device 23 to, for example, set the mobile device 1 in one of the various positions available to the mobile device 1. Some examples of these locations are shown in Figures 6a-6c. The control system 47 can be programmed to provide a specific limit on the number of positions available to the mobile device 1. For example, if the mobile device 1 is in the position shown in FIG. 6b and the leg rest 15 is pushed forward, and the user provides input to control the body support actuating device 23 to obtain the mobile device 1 fully standing as shown in FIG. 6c Position, the control system 47 can control the leg rest actuating device 21 to move toward the main frame 3 for safety reasons.

Figure 7a shows the middle to two-side power transfer assembly housing 49. The middle to two-side power transfer assembly housing 49 includes a body support 13a, a rotation transfer member housing 14, a first support structure 13d, and a second support structure 13e. These four components form a single rigid shell structure, that is, the middle to two-side power transfer assembly shell 49. The body support 13a, the rotation transfer member housing 14, the first support structure 13d, and the second support structure 13e are thus fixedly connected to each other.

The first upper body supporting the rotary driving member 35 is provided with a first connection interface 51. The first connection interface 51 supports the rotation driving member 35 relative to the first upper body to be rotatably fixed.

The second upper body supporting rotation driving member 37 is provided with a second connection interface 53. The second connection interface 53 supports the rotation driving member 37 relative to the second upper body to be rotatably fixed.

The body support 13b, the rotation transfer member 13c, the first lateral movement transfer member 31, the second lateral movement transfer member 33, the first upper body support rotation drive member 35, and the second upper body support rotation drive member 37 form a middle to lateral direction Movement transfer assembly.

The first connection interface 51 and the second connection interface 53 are for detachably attaching the upper body support 13h. In particular, the upper body support 13h is constructed to be attached to the middle to lateral movement transfer assembly by the first connection interface 51 and the second connection interface 53 and thus disengaged. These two connection points may be the only connection points between the upper body support 13h and the intermediate to lateral movement transfer assembly (and therefore with the rest of the mobile device 1).

FIG. 7b shows the inside of the middle to two-side power transfer assembly housing 49. The middle-to-two-side power transfer assembly housing 49 includes a first rotary drive member 25 and a second rotary drive member 27 and their rotational connections (for example by belts or chains). The middle to two-side power transfer assembly housing 49 also includes a rotation transfer member 13c, which is a rotatable shaft, and is driven by the connection between the first rotation drive member 25 and the second rotation drive member 27. The first lateral movement transfer member 31 and the second lateral movement transfer member 33 are fixedly connected to the rotation transfer member 13c, and are arranged in the respective first support structure 13d and second support structure 13e. The first upper body support rotary drive 35 is rotatably connected to the first lateral motion transfer member 31 and is arranged in the first support structure 13d. The second upper body support rotation driving member 37 is rotatably connected to the second lateral motion transfer member 33 and is arranged in the second support structure 13e.

The arrows in FIG. 7b show the rotational position of the first rotary drive member 25 and the corresponding positions of the first lateral motion transfer member 31 and the first upper body support rotary drive member 35. The rotational positions of all these components are the same. This also applies to the second lateral movement transfer member 33 and the second upper body support rotation drive member 37.

7c shows that as the first rotary drive member 25 rotates around the first axis of rotation A5, the second rotary drive member 27, the first lateral motion transfer member 31 and the second lateral motion transfer member 33 rotate around in the same direction The second rotation axis A2 is rotated by the same amount, the second rotation axis A2 is the central longitudinal axis of the rotation transfer member 13c, which is offset from the first rotation axis A5; and the first upper body supports the rotation drive member 35 and the second upper body The supporting rotary driving member 37 is rotated by the same amount about the third rotation axis or the driving member axis A6 in the same direction, which is offset from the first rotation axis A5 and the second rotation axis A6, as indicated by arrows.

The main frame may have an elongated shape according to an example, and may have a central longitudinal axis, which is arranged offset from the middle plane of the mobile device. The central longitudinal axis can be arranged in the front-back plane of the mobile device. According to an example, the body support may have a central longitudinal axis which is arranged parallel but offset from the middle plane of the mobile device. Both offsets can be slight and allow the user to place each leg on a separate side of the body support and place the foot on each side of the main frame.

The upper body support 13h is fixedly arranged with respect to the first upper body support rotary drive 35 and the second upper body support rotary drive 37. Therefore, as the first upper body support rotation drive 35 and the second upper body support rotation drive 37 rotate, the upper body support 13h also rotates. The rotation of the first rotation driving member 25 positioned in the middle rotates the upper body support 13h by the same amount in the same direction.

Turning now to Fig. 8, the main frame 3'may have an elongate shape according to an example, and may have a central longitudinal axis, which is arranged offset from the middle plane P of the mobile device. The central longitudinal axis can be arranged in the sagittal plane of the mobile device. According to an example, the body support 13b' may have a central longitudinal axis which is arranged parallel but offset from the median plane P of the mobile device 1'. Both offsets can be slight, and allow the user to place each leg on the individual side of the body support 13b' and place the foot on each side of the main frame 3'.

Figure 9a shows an example of upper body support 13h-1. In this example, the upper body support 13h-1 is a belt-shaped backrest correction. The upper body support 13h-1 has a first upper body support connection interface 55-1, which is constructed to be releasably or detachably connected to the first connection interface 51. The upper body support 13h-1 has a second upper body support connection interface 57-1, which is constructed to be releasably or detachably connected to the second connection interface 53. In this way, the upper body support 13h-1 can then be connected to the intermediate to lateral movement transfer assembly and thereby disengaged.

For example, the first connection interface 51 and the first upper body support connection interface 55-1 may form a latch connection, a clamping connection, or a snap connection.

The second connection interface 53 and the second upper body support connection interface 57-1 may form a latch connection, a clamping connection, or a snap connection, for example.

The example upper body support 13h-1 has a back support 59-1. The back support 59-1 is mechanically flexible. This may allow the upper body support 13h-1 to be slightly deformed to facilitate attachment of the upper body support 13h-1 to the intermediate to lateral movement transfer assembly. The upper body support 13h-1 may be arranged such that the first upper body support connection interface 55-1 is arranged in the first connection interface 51, that is, in the middle relative to the first connection interface 51, and the second upper body support connection The interface 57-1 is arranged in the second connection interface 53, that is, in the middle relative to the second connection interface 53.

The back support 59-1 may include two separate lateral portions 59a-1 and 59b-1. The two lateral portions 59a-1 and 59b-1 can be separated from each other and configured to move laterally (ie, away from each other or toward the middle of each other) to adjust the width of the back support 59-1. Each lateral portion 59a-1 and 59b-1 may have individual legs. Each leg may have an individual end: the first end is provided with a first upper body support connection interface 55-1, and the second end is provided with a second upper body connection interface 57-1.

The example upper body support 13h-1 includes a movement restricting tool 61-1, which is attached to the back support 59-1. The movement restriction appliance 61-1 may be made of, for example, synthetic or natural fabric, leather, or a formation including, for example, a polymer-based material. The movement restricting tool 61-1 may be upper body clothes. The movement restricting tool 61-1 is constructed to be worn by the user. The movement restricting tool 61-1 is configured to restrain the user from facing the back support 59-1. The movement restricting tool 61-1 is constructed to be worn by the user. In this example, the movement restricting tool 61-1 includes a waist belt.

Figure 9b shows another example of upper body support 13h-2 including a back support. This example has a lower part similar to the example shown in Fig. 9a. An example upper body support 13h-2 is an orthopedic vest-type backrest. The example upper body support 13h-2 includes a movement restricting tool 61-2, which is attached to the back support 59-2. The movement restricting appliance 61-2 may be made of, for example, a fabricator of synthetic or natural fabric, leather, for example, including a polymer-based material. The movement restricting tool 61-2 is upper body clothes. The movement restricting tool 61-2 is constructed to be worn by the user. The movement restricting tool 61-2 is configured to restrain the user from facing the back support 59-1. The movement restricting tool 61-2 is constructed to be worn by the user. In this example, the movement restricting appliance 61-1 includes a vest and a waist belt, but may alternatively include only a vest. Further, the back support 59-2 is configured to support the upper back. The upper body support 13h-2 further includes a neck support 63-2. Due to the mechanical flexibility of the back support 59-2, in case the user leans forward while sitting on the mobile device 1, 1', the neck support can be kept close to the user's head.

Fig. 9c shows another example of upper body support 13h-3. In this example, the upper body support 13h-3 is a shell-shaped backrest.

Figure 9d shows another example of upper body support 13h-4. In this example, the upper body support includes a tubular frame interface for customizing or repairing backrests and accessories in the aftermarket.

The mobile device system may include mobile devices 1, 1'and a plurality of different types of upper body supports, such as upper body supports 13h to 13h-4. Each upper body support can be constructed for different user needs. The upper body support can be changed from one type to another in a simple manner based on the specific needs of the user.

The invention concept has mainly been described above with reference to some examples. However, as those skilled in the art can easily appreciate, the embodiments other than the above may also be within the scope of the inventive concept as defined by the scope of the attached patent application.

1: mobile device 1’: Mobile device 3: main frame 3’: Main frame 5: Drive wheel swing arm 7: Drive wheel 9: Rear wheel swing arm 11: Rear wheel 13: Body support system 13a: seat 13b: Long body support 13b’: Long body support 13c: Long rotating transfer piece 13d: Long first support structure 13e: Long second support structure 13f: the first armrest 13g: Second armrest 13h: upper body support 13h-1: upper body support 13h-2: upper body support 13h-3: upper body support 13h-4: upper body support 14: Long rotating transfer case 15: leg rest 16: Intermediate rotation connection 17: Intermediate hub connection 21: Leg rest actuation device 22: First link 23: Body support actuator 25: The first rotary drive 26: Second link 27: Second rotary drive 28: third link 29: chain, belt or similar appliances 30: Link system 31: The first lateral movement transfer piece 31’: the first lateral movement transfer piece 33: Second lateral movement transfer piece 33’: Second lateral movement transfer piece 35: The first upper body supports the rotary drive 36: chain, belt or similar appliances 37: The second upper body supports the rotary drive 38: Chains, belts or similar appliances 39: First lateral secondary link 41: Second lateral secondary link 43: Sixth link 45: Seventh link 47: Control system 49: Middle to two-side power transfer assembly housing 51: The first connection interface 53: Second connection interface 55-1: The first upper body supports the connection interface 57-1: The second upper body supports the connection interface 59-1: Back support 59-2: Back support 59a-1: Lateral part 59b-1: Lateral part 61-1: Mobile restriction appliances 61-2: Mobile restriction appliances 63-2: Neck support A1: Central longitudinal axis A2: Central longitudinal axis, second axis of rotation A3: Central longitudinal axis A4: Central longitudinal axis A5: The first axis of rotation A6: Third rotation axis P: middle plane α: angle of the leg rest pivot β: body support angle

A specific embodiment of the inventive concept will now be described by way of example with reference to the accompanying drawings, in which: FIG. 1 is a perspective view schematically showing an example of a mobile device; 2 is a perspective view schematically showing a simplified model of the mobile device of FIG. 1; Figure 3a is a perspective view schematically showing an example of a symmetrical rotation transfer assembly; Figure 3b shows a top view of the rotary transfer assembly of Figure 3a; Figure 4 shows another example of a symmetrical rotation transfer assembly; 5 is a block diagram of components of a mobile device; Figures 6a-6c schematically show the various positions available for mobile devices; Figures 7a-7c show various perspective views of an example of the middle to two-side power transfer assembly housing; 8 is a front view of an example of a mobile device with a laterally offset main frame and body support; and Figures 9a-9d show various examples of upper body support.

1: mobile device

3: main frame

13b: Long body support

13c: Long rotating transfer piece

13d: Long first support structure

13e: Long second support structure

13f: the first armrest

13g: Second armrest

13h: upper body support

15: leg rest

16: Intermediate rotation connection

17: Intermediate hub connection

21: Leg rest actuation device

23: Body support actuator

A1: Central longitudinal axis

A2: Central longitudinal axis

A3: Central longitudinal axis

A4: Central longitudinal axis

α: angle of the leg rest pivot

β: body support angle

Claims (15)

A mobile device (1; 1'), comprising: Main frame (3; 3’), Intermediate to lateral movement transfer assembly, which includes: An elongated body support (13b) with a central longitudinal axis parallel to the middle plane (P) of the mobile device (1; 1'), the body support (13b) pivots via an intermediate hub connection (17) Ground connection to the main frame (3; 3'), An elongated rotary transfer member (13c) configured to rotate relative to the body support (13b), the rotary transfer member having a central longitudinal axis (A2) which is relative to the central longitudinal axis of the body support (13b) The axis extends laterally, The first lateral movement transfer member (31) is constructed to be fixedly connected to the rotary transfer member (13b), A second lateral movement transfer member (33), which is constructed to be fixedly connected to the rotary transfer member (13b), The lateral first upper body supports a rotary driving member (35), which is constructed to be driven by the first lateral motion transfer member (31), The lateral second upper body supports the rotary driving member (37), which is constructed to be driven by the second lateral movement transferring member (33), The first upper body support rotary drive member (35) and the second upper body support rotary drive member (37) are constructed to form a drive member axis (A2) that is offset from the central longitudinal axis (A2) of the rotation transfer member (13c) A6) to spin, A first connection interface (51), which is rotationally fixedly connected to the first upper body support rotation drive member (35), A second connection interface (53), which is rotationally fixedly connected to the second upper body support rotation drive member (37); and Upper body support (13h; 13h-1; 13h-2; 13h-3; 13h-4), which has a first upper body support connection interface (55-1) and a second upper body support connection interface (57-1), The first connection interface (51) is configured to be detachably connected and rotatably fixed to the first upper body support connection interface (53), and the second connection interface (53) is configured to be detachably connected and rotatably fixed to The second upper body support connection interface (55), whereby the upper body support (13h; 13h-1; 13h-2; 13h-3; 13h-4) can be detachably connected to the intermediate to lateral movement transfer to make, The rotation of the rotary transfer member (13c) in the first direction about its central longitudinal axis causes the upper body support (13h; 13h-1; 13h-2; 13h-3; 13h-4) to wrap around in the first direction The drive member axis (A6) rotates by a corresponding amount. A mobile device (1; 1') as claimed in item 1 of the patent scope, wherein the first upper body support connection interface (55-1) and the second upper body support connection interface (57-1) are used to connect the upper body support (13h; 13h-1; 13h-2; 13h-3; 13h-4) The only connection point to the rest of the mobile device (1; 1'). A mobile device (1; 1') as claimed in item 1 or 2 of the patent scope, wherein the upper body support (13h; 13h-1; 13h-2; 13h-3; 13h-4) includes a back support (59-1 ; 59-2). A mobile device (1; 1') as claimed in item 3 of the patent scope, wherein the back support (59-1; 59-2) is mechanically flexible. A mobile device (1; 1') as claimed in item 3 of the patent scope, wherein the upper body support (59-1; 59-2) includes a movement restriction attached to the back support (59-1; 59-2) Utensils (61-1; 61-2), wherein the fabric is constructed to be worn by the user. A mobile device (1; 1') as claimed in item 5 of the patent scope, wherein the movement restricting device (61-1; 61-2) forms upper body clothing to restrain the user from facing the back support (59-1; 59- 2). For example, the mobile device (1; 1') according to item 6 of the patent application, wherein the upper body garment is a vest. A mobile device (1; 1') as claimed in item 3 of the patent scope, wherein the back support is divided into two lateral parts (59a-1, 59b-1), which are configured to move laterally to each other to adjust the back support The width of the piece (59-1; 59-2). A mobile device (1; 1') as claimed in item 1 or 2 of the patent scope, which includes a leg rest, the leg rests on the main frame (3; 3') or is pivotally connected to the main frame, wherein The rotation of the leg rest relative to the body support (13b) causes the rotation transfer member (13c) to rotate. A mobile device (1; 1') as claimed in item 1 or 2 of the patent application, wherein the upper body support (59-2) includes a neck support (63-2). A mobile device (1; 1') as claimed in claim 1 or 2, wherein the first lateral movement transfer member (31) is connected to the first lateral end of the rotary transfer member (13c), and the first Two lateral movement transfer members (33) are connected to the second lateral end of the rotary transfer member (13c). For example, the mobile device (1; 1') according to item 1 or 2 of the patent application scope, wherein the mobile device (1; 1') is a wheelchair. A mobile device (1) as claimed in item 1 or 2 of the patent application, wherein the main frame (3) is an elongated structure having a central longitudinal axis coinciding with the middle plane of the mobile device (1). A mobile device system, including: A mobile device (1; 1’) as claimed in any of items 1 to 13 of the patent scope, and A plurality of different types of upper body supports (13h; 13h-1; 13h-2; 13h-3; 13h-4), each with a first upper body support connection interface (55-1) and a second upper body support connection interface ( 57-1), the upper body support (13h; 13h-1; 13h-2; 13h-3; 13h-4) is constructed to constitute the first connection interface interchangeably attached to the mobile device (1; 1') (51) and the second connection interface (53). For example, the mobile device system of the patent application scope item 14, wherein each upper body support (13h; 13h-1; 13h-2; 13h-3; 13h-4) is constructed for different user needs.

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