Motion support equipment

Abstract

To provide an appliance for supporting body motion, an appliance which has a small load on the waist, is comparatively lightweight as well as simply structured, and can be compactly housed.SOLUTION: A motion support appliance (101) includes: a cylindrical bag (1), leg pads (2, 3), a chest pad (4), a lower rod (8) for connecting the cylindrical bag (1) and the leg pads (2, 3), and an upper rod (9) for connecting the cylindrical bag (1) and the chest pad (4). By the forward bending motion or the crouching motion of a human body (P), the cylindrical bag (1) is deformed so that the capacity of the cylindrical bag (1) is reduced by an upper end part of the lower rod (8) and a lower end part of the upper rod (9). Also, the end part of the cylindrical bag (1) is deformed in a bending manner by the upper rod (9) and a side belt (21). By means of a reaction force produced by these deformations, the motion of raising the human body (P) and the maintenance of a forward tilted posture and a half-sitting posture are assisted.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an operation support device for assisting the movements of the human body.

Background Art

[0002] As a technology of this kind, for example, there is the technology described in Patent Document 1. That technology is configured as follows.

[0003] Patent Document 1 describes an operation support device that assists the movements of the human body using an actuator. This operation support device includes a back mounting part, a thigh suppressing part, and a calf structure. The back mounting part is mounted on the back while being supported by the user's shoulders by shoulder belts and is a frame-shaped member. Further, the thigh suppressing parts are respectively arranged on the front sides of both thigh parts of the user and are members that suppress the front sides of the thigh parts. A first connecting part that is rotatably connected to both ends of the waist support part of the back mounting part is provided on one end side of the thigh suppressing part. The first connecting part can adopt various combinations of configurations such as gears, pulleys, rotating shafts, and disk members.

[0004] Actuators are built into both ends of the waist support part, and by driving the first connecting part with the actuators, the thigh suppressing part is made to rotate with respect to the back mounting part.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The operation support device described in Patent Document 1 has the following problems.

[0007] As described above, the back-mounted portion of the motion support device described in Patent Document 1 is mounted on the user's back while being supported by the user's shoulders via shoulder belts. Therefore, tension is applied to the shoulders when the user bends forward or squats. When tension is applied to the shoulders, a compressive force acts on the lumbar spine. If the bending forward or squatting motion is performed deeply, a large tension is applied to the shoulders, increasing the compressive force on the lumbar spine and potentially putting a strain on the user's lower back.

[0008] Furthermore, the first connecting section that constitutes the motion support device requires a structure that can withstand high loads, resulting in a complex structure and increased weight.

[0009] Furthermore, mechanical devices like the one described in Patent Document 1 are large and have the problem of not being able to be stored compactly when not in use. Therefore, a large space must be secured for storage.

[0010] To address the above issues, the applicant has filed an application for an invention relating to a motion support device (Japanese Patent Application No. 2020-154287), but there is room for further improvement.

[0011] The present invention has been made in view of the above circumstances, and its purpose is to provide a movement support device for assisting human body movements that places less strain on the waist, has a relatively light and simple structure, and can be stored compactly. [Means for solving the problem]

[0012] The motion support device disclosed herein comprises: an airtight cylindrical bag positioned on the abdomen of a human body; leg pads positioned on the front of each of the left and right thighs of a human body; a chest pad positioned on the front of the upper body of a human body and above the cylindrical bag; a lower rod connecting the cylindrical bag and the leg pads, the lower rod extending vertically along the thighs when the human body is upright; an upper rod connecting the cylindrical bag and the chest pad, the upper rod extending vertically along the abdomen when the human body is upright; and a waist belt for positioning the cylindrical bag on the abdomen of a human body. The belt comprises a waist belt connecting the ends of the cylindrical bag and positioned on at least the back of the human body, and side belts positioned on each of the sides of the human body, one end of which is connected to the upper end of the upper rod and the other end of which is connected to the cylindrical bag, wherein the waist belt and the side belts are connected to the left side portion and the right side portion of the cylindrical bag, respectively, and the connection position of the side belts is closer to the end of the cylindrical bag positioned on the side of the human body or the end positioned close to the side of the human body than the connection position of the waist belt.

[0013] The above-mentioned motion support device has the following effects:

[0014] When the human body bends forward or squats, the cylindrical bag deforms so that its volume decreases due to the upper end of the lower rod and the lower end of the upper rod, and the cylindrical bag bends at the point of connection with the waist belt due to the upper rod and side belts. The reaction force generated by these deformations assists in straightening the body, leaning forward, and maintaining a crouched position.

[0015] The above-described motion support device does not apply tension to the shoulders like the motion support device described in Patent Document 1, thus reducing the burden on the lower back. Furthermore, the assisting force acting on the human body is due to the reaction force generated by the deformation of the cylindrical bag when it deforms to reduce its volume. In other words, in this invention, the assisting force acting on the human body is provided by the cylindrical bag. The cylindrical bag is relatively lightweight and has a simple structure. In addition, the cylindrical bag, rods (upper rod and lower rod), etc. that constitute this invention do not take up much space when stored. Therefore, the motion support device can be compactly stored in a storage location when not in use.

[0016] In the above-described motion support device, it is preferable that the connection position of the waist belt in the portion of the cylindrical bag positioned on the left side of the human body and the portion positioned on the right side of the human body is closer to the end of the cylindrical bag positioned on the side of the human body or the end positioned close to the side of the human body than to the fixing position of the lower rod and the fixing position of the upper rod.

[0017] In the above configuration, the upper and lower rods are not fixed to the part of the cylindrical bag where it bends, so the cylindrical bag is easily bent. Also, the upper and lower rods are fixed to the part of the cylindrical bag other than the bending part. Therefore, the cylindrical bag is easily deformed so that its volume decreases due to the lower end of the upper rod and the upper end of the lower rod. These deformations make it easier to generate reaction forces, which improves the assistance force for movements such as straightening the body, leaning forward, and maintaining a crouched posture.

[0018] In the above-described motion support device, it is preferable to further include a hand-held belt connected to the upper end of the upper rod.

[0019] With the above configuration, when the user places the carrying strap over the luggage and stands up while lifting the luggage, the luggage pulls on the carrying strap, causing the upper rod to tilt further forward. As a result, the cylindrical bag deforms so that its volume is further reduced by the lower end of the upper rod, and the side belts tilt further, causing the cylindrical bag to bend further. The reaction force generated by these deformations of the cylindrical bag assists in the movement of standing up, leaning forward, and maintaining a crouched position, while also assisting in the movement of lifting the luggage.

[0020] In the above-described motion support device, it is preferable that the cylindrical bag is provided with a first upper bag body opening toward the chest pad, the chest pad is provided with a second upper bag body opening toward the cylindrical bag, and the device further comprises an upper connecting body that connects the first upper bag body and the second upper bag body and is adjustable in length, wherein one end of the upper rod is housed in the first upper bag body and the other end of the upper rod is housed in the second upper bag body.

[0021] According to the above configuration, the upper rod can be easily attached by housing one end of the upper rod in the first upper pouch provided on the cylindrical bag and the other end of the upper rod in the second upper pouch provided on the chest pad. Furthermore, the size of the movement support device can be easily changed by replacing the upper rod with another upper rod of a different length and adjusting the length of the upper connector to match the length of that upper rod. This makes it possible to provide a movement support device that can be applied to a wide range of user body sizes.

[0022] In the above-described motion support device, the cylindrical bag is provided with a first lower bag body that opens toward the leg pad, and the leg pad is provided with a second lower bag body that opens toward the cylindrical bag, and the first bottom Bag body and further 2 bottom Preferably, the lower bag further comprises a lower connecting body that connects to the bag body and is adjustable in length, wherein one end of the lower rod is housed in the first lower bag body and the other end of the lower rod is housed in the second lower bag body.

[0023] According to the above configuration, by accommodating one end of the lower rod in the first lower bag provided in the cylindrical bag and the other end of the lower rod in the second lower bag provided in the leg pad, the lower rod can be easily attached. Further, by replacing the lower rod with another lower rod having a different length and adjusting the length of the lower connecting body according to the length of the lower rod, the size of the motion assistance device can be easily changed. Thereby, a motion assistance device can be provided in which the range of body types of applicable users is widened.

[0024] In the above motion assistance device, the cylindrical bag has a first cylindrical bag disposed on the right side abdomen of the abdomen and a second cylindrical bag disposed on the left side abdomen of the abdomen, and the chest pad has a first chest pad disposed on the right front side of the front side of the upper body of the human body and a second chest pad disposed on the left front side of the front side of the upper body of the human body. It is preferable to further include a bag connecting belt disposed on the front side of the upper body of the human body and capable of connecting the first cylindrical bag and the second cylindrical bag, and a pad connecting belt disposed on the front side of the upper body of the human body and capable of connecting the first chest pad and the second chest pad.

[0025] The above configuration is a so-called front-opening configuration. Specifically, on the front side of the human body, by connecting the first cylindrical bag and the second cylindrical bag and connecting the first chest pad and the second chest pad by the pad connecting belt, the motion assistance device can be easily worn. When the motion assistance device is on the front side of the human body and the connection between the first cylindrical bag and the second cylindrical bag is released and the connection between the first chest pad and the second chest pad by the pad connecting belt is released, the motion assistance device can be easily removed. Since the motion assistance device has a front-opening configuration, it is easy for the user to wear the motion assistance device and also easy to take it off.

Effects of the Invention

[0026] We can provide a movement support device for assisting human body movements that places less strain on the lower back, has a relatively light and simple structure, and can be stored compactly. [Brief explanation of the drawing]

[0027] [Figure 1] This is a front view of a user in an upright position wearing the movement support device according to the first embodiment (the upper limbs are not shown). [Figure 2] Figure 1 is a side view of a user wearing the mobility support device shown. [Figure 3] This is a schematic perspective view showing the second cylindrical bag to which the upper rod, lower rod, waist belt, and side belts are attached. [Figure 4] This is a front view of the second cylindrical bag, showing the side in contact with the lower abdomen of the human body P and the side opposite to it. [Figure 5] This is a front view of the side of the second cylindrical bag that is in contact with the lower abdomen of the human body P. [Figure 6] Figures 1 and 2 are side views showing the user in the process of bending forward and squatting from an upright position (upper limbs are not shown). [Figure 7] This is a side view showing the user in the process of further crouching down from the state shown in Figure 6 (the upper limbs are not shown). [Figure 8] Figure 3 is a perspective view of the second cylindrical bag, which has been deformed by the forward bending or squatting motion of the human body (user). [Figure 9] This is a side view showing the user in a squatting position (the upper limbs are not shown). [Figure 10] This is a side view of a user in an upright position wearing the movement support device according to the second embodiment. [Figure 11] Figure 10 is a side view showing the state when the user bends forward from an upright position. [Figure 12] This is a side view showing the state when the user squats down, following the forward-bending position shown in Figure 11. [Figure 13]Figure 12 is a side view showing the state in which the user is in the process of standing up from a crouching position. [Figure 14] This is a side view showing the user in a more upright position than the state shown in Figure 13. [Figure 15] This is a side view showing the user in a more upright position than the state shown in Figure 14. [Figure 16] This is a front view of a user in an upright position wearing the mobility support device according to Form 1 (the upper limbs are not shown). [Figure 17] Figure 16 is a side view of a user wearing the mobility support device shown. [Figure 18] This is a schematic perspective view showing the first cylindrical bag to which the upper and lower rods are attached. [Figure 19] Figure 18 is a perspective view of the first cylindrical bag, which has been deformed by a forward bending or squatting movement of the human body (user). [Figure 20] Figures 16 and 17 are side views showing the user's position when they squat down from an upright position (upper limbs are not shown). [Figure 21] Figures 16 and 17 are side views showing the user in a forward-bending position from an upright position (upper limbs are not shown). [Figure 22] This is a perspective view showing a first modified example of a first cylindrical bag to which an upper rod and a lower rod are attached. [Figure 23] This is a perspective view showing a second modified example of the first cylindrical bag with the upper and lower rods attached. [Figure 24] This is a side view of a user in an upright position wearing the mobility support device according to Form 2 (the upper limbs are not shown). [Figure 25] Figure 24 is a side view showing the user in a slightly bent-forward position from an upright position (upper limbs are not shown). [Figure 26] This is a side view showing the user's condition when their knees are slightly bent, as shown in Figure 25 (the upper limbs are not shown). [Figure 27]This is a side view showing the state after the user has further bent their knees and squatted, from the state shown in Figure 26 (the upper limbs are not shown). [Modes for carrying out the invention]

[0028] [First Embodiment] Here, the configuration of the motion support device 101 according to the first embodiment will be described with reference to Figures 1 to 9. Note that the upper limbs are not shown in Figures 1, 2, 6, 7, and 9.

[0029] The movement support device 101, which assists the movement of the human body P, comprises, as shown in Figure 1, an airtight cylindrical bag 1 placed on the abdomen (lower abdomen) of the human body P (user), a pair of leg pads 2 and 3 placed on the front sides of the left and right thighs of the human body P, and a chest pad 4 placed on the front side of the upper body of the human body P and above the cylindrical bag 1. The cylindrical bag 1 is placed on the abdomen (lower abdomen) of the human body P by a waist belt 7 (see Figure 2). Side belts 21 are placed on both sides of the human body P (user) (see Figures 1 and 2).

[0030] The cylindrical bag 1 is, for example, a bag in which gas is sealed inside, and it is preferable that the bag is sealed. The cylindrical bag 1 is deformed when pressed in a way that reduces its volume, and this deformation generates a reaction force as an assisting force. Therefore, the cylindrical bag 1 is designed so that the gas (e.g., air) sealed inside does not leak out to the outside when it is deformed, i.e., it is airtight. Specifically, as the bag body of the cylindrical bag 1, for example, a base fabric with a coating film that has been connected, or a fiber-reinforced hose that can secure internal pressure by being filled with gas can be used.

[0031] As shown in Figure 1, the cylindrical bag 1 of this embodiment has a first cylindrical bag 5 that is positioned on the right side of the abdomen (lower right side) of the abdomen of a human body P, and a second cylindrical bag 6 that is positioned on the left side of the abdomen (lower left side). The first cylindrical bag 5 and the second cylindrical bag 6 are connected by a waist belt 7 that is positioned on the side and rear of the human body P (see Figure 2), and are also connected on the front side of the human body P by a bag connecting belt 30 (see Figure 1).

[0032] The first cylindrical bag 5 is positioned slightly above the right hip joint of the human body P when the human body P is in an upright position. The first cylindrical bag 5 is positioned from near the center of the abdomen (lower abdomen) to the right side of the abdomen (lower right side of the abdomen) of the human body P. The second cylindrical bag 6 is positioned slightly above the left hip joint of the human body P. It is positioned from near the center of the abdomen (lower abdomen) to the left side of the abdomen (lower left side of the abdomen) of the human body P. One end of the first cylindrical bag 5, positioned near the center of the abdomen (lower abdomen) of the human body P, and one end of the second cylindrical bag 6 are connected by a bag connecting belt 30. The other end of the first cylindrical bag 5, positioned on the right side of the abdomen (lower right side of the abdomen) of the human body P, and the other end of the second cylindrical bag 6, positioned on the left side of the abdomen (lower left side of the abdomen) of the human body P, are connected by a waist belt 7 (see Figure 2).

[0033] The bag connecting belt 30 is positioned in front of the human body P. The bag connecting belt 30 is configured to allow connection and disconnection between the first cylindrical bag 5 and the second cylindrical bag 6. The bag connecting belt 30 is also configured to allow adjustment of the belt length. When the bag connecting belt 30 is positioned in front of the human body P, it is possible to connect and disconnect the first cylindrical bag 5 and the second cylindrical bag 6, and to adjust the belt length, all from the front of the human body P. Here, as an example, a case is shown in which the bag connecting belt 30 is equipped with a buckle 31. The buckle 31 allows connection and disconnection between the first cylindrical bag 5 and the second cylindrical bag 6, and also allows adjustment of the length of the bag connecting belt 30.

[0034] The leg pads 2 and 3 are made of, for example, cloth. The leg pad 2 and the first cylindrical bag 5 are connected by a lower rod 8. Similarly, the leg pad 3 and the second cylindrical bag 6 are connected by a lower rod 8. These lower rods 8 extend vertically along the thighs when the human body P is in an upright position. In this embodiment, two lower rods 8 are provided on each side of the left and right thighs, spaced apart. The lower ends of the two lower rods 8 are fixed to both ends of the leg pad 2 (leg pad 3). The lower rods 8 are, for example, hollow rod members made of FRP. The number of lower rods 8 on each side of the left and right thighs is not limited, but for example, as shown in Figure 1, providing two lower rods 8 on each side of the left and right thighs can stabilize the movement of the leg pads 2 and 3 that press against the thighs.

[0035] The chest pad 4 has a first chest pad 41 positioned on the right side of the chest of the human body P, and a second chest pad 42 positioned on the left side of the chest. The first chest pad 41 and the second chest pad 42 are made of, for example, cloth. The first chest pad 41 and the second chest pad 42 are connected at the front of the human body P by a pad connecting belt 50.

[0036] The pad connecting belt 50 is positioned on the front side of the human body P. The pad connecting belt 50 is configured to allow connection and disconnection between the first chest pad 41 and the second chest pad 42. The pad connecting belt 50 is also configured to allow adjustment of the belt length. Here, as an example, a case in which the pad connecting belt 50 is equipped with a buckle 51 is shown. The buckle 51 allows connection and disconnection between the first chest pad 41 and the second chest pad 42, and also allows adjustment of the length of the pad connecting belt 50.

[0037] As shown in Figure 1, the first chest pad 41 and the first cylindrical bag 5 are connected by an upper rod 9. Similarly, the second chest pad 42 and the second cylindrical bag 6 are connected by an upper rod 9. These upper rods 9 extend vertically along the abdomen when the human body P is in an upright position. In this embodiment, one upper rod 9 is provided for each of the left and right cylindrical bags (first cylindrical bag 5, second cylindrical bag 6). One end of the upper rod 9 located on the right side of the human body P is fixed to the first chest pad 41, and the other end is fixed to the first cylindrical bag 5. One end of the upper rod 9 located on the left side of the human body P is fixed to the second chest pad 42, and the other end is fixed to the second cylindrical bag 6. The upper rods 9 are, for example, hollow rod members made of FRP.

[0038] When the cylindrical bag 1 is composed of a first cylindrical bag 5 and a second cylindrical bag 6 connected as described above, when the user performs a bending forward or squatting motion, the first cylindrical bag 5 and the second cylindrical bag 6 twist around the connection point with the upper rod 9, and the resistance to this deformation assists the bending forward or squatting motion. At this time, the first cylindrical bag 5 and the second cylindrical bag 6 deform to allow the human body P to move easily, so the user can perform bending forward or squatting motions more easily while receiving the assistance effect.

[0039] A side belt 21 positioned on the right side of the human body P connects the upper rod 9, also positioned on the right side of the human body P, to the first cylindrical bag 5. One end of the side belt 21 is connected to the upper end of the upper rod 9, which is positioned on the right side of the human body P. In this specification, "one end of the side belt is connected to the upper end of the upper rod" means that one end of the side belt 21 may be directly connected to the upper end of the upper rod 9, or it may be connected via another member. In this embodiment, one end of the side belt 21 is fixed to the upper end of the upper rod 9 via the first chest pad 41. The other end of the side belt 21 is connected to the end of the first cylindrical bag 5 positioned on the right abdomen of the human body P, or to the end positioned close to the right abdomen of the human body P.

[0040] The side belt 21, positioned on the left side of the human body P, connects the upper rod 9, also positioned on the left side of the human body P, to the second cylindrical bag 6. One end of the side belt 21 is connected to the upper end of the upper rod 9, which is also positioned on the left side of the human body P. In this embodiment, one end of the side belt 21 is fixed to the upper end of the upper rod 9 via the first chest pad 41. The other end of the side belt 21 is connected to the end of the second cylindrical bag located on the left abdomen of the human body P, or to the end located near the left abdomen of the human body P (see Figure 2).

[0041] The side belt 21 may have an adjustable length configuration, for example. For example, the side belt 21 may have a buckle that allows for adjustment of the belt length.

[0042] As shown in Figure 2, on the left side of the human body P, one end 21a of the side belt 21 and one end 7a of the waist belt 7 are connected to the second cylindrical bag 6 (see Figure 3). Figure 3 shows the second cylindrical bag 6 positioned on the left side of the human body P's abdomen. The upper ends 8a of two lower rods 8 and the lower end 9a of an upper rod 9 are fixed to the second cylindrical bag 6 (see Figures 1 and 2). In this embodiment, as shown in Figures 2 and 3, the side belt 21 and one lower rod 8 are attached to the side of the second cylindrical bag 6 opposite to the side that contacts the lower abdomen of the human body P. The waist belt 7, one lower rod 8 and an upper rod 9 are attached to the side of the second cylindrical bag 6 that contacts the lower abdomen of the human body P. Note that Figure 3 schematically shows the positional relationship of the members (waist belt 7, lower rod 8, upper rod 9, side belt 21) that are connected to or fixed to the second cylindrical bag 6 positioned on the left side of the human body P's abdomen.

[0043] As shown in Figure 2, in the second cylindrical bag 6, the connection position (21a) of the side belt 21 is closer to one end of the second cylindrical bag 6 in the longitudinal direction (one end on the left side of the human body P) than the connection position (7a) of the waist belt 7 (see Figure 3). Here, "one end of the second cylindrical bag 6 in the longitudinal direction" (one end on the left side of the human body P) refers to one end of the second cylindrical bag 6 located on the left side of the human body P, or one end located close to the left side of the human body.

[0044] As shown in Figure 3, in the second cylindrical bag 6, the connection position (7a) of the waist belt 7 is closer to the longitudinal end of the second cylindrical bag 6 (the left side end of the human body P) than to the fixing positions (8a) of the two lower rods 8 and the fixing position (9a) of the upper rod 9 (see Figure 2). Here, "the longitudinal end of the second cylindrical bag 6" (the left side end of the human body P) is the same as described above.

[0045] The above describes the positional relationship of the components (waist belt 7, lower rod 8, upper rod 9, side belt 21) connected to or fixed to the second cylindrical bag 6 located on the left side of the human body P. The positional relationship of the components (waist belt 7, lower rod 8, upper rod 9, side belt 21) connected to or fixed to the first cylindrical bag 5 located on the right side of the human body P is the same as above, with only the left being replaced by the right.

[0046] Next, the mounting structure of the upper rod 9 and the lower rod 8 will be described.

[0047] This section describes an example of the attachment structure of the upper rod 9 to the second cylindrical bag 6 and the second chest pad 42, which are positioned on the left side of the human body P, and an example of the attachment structure of the lower rod 8 to the second cylindrical bag 6 and the leg pad 3, which are also positioned on the left side of the human body P. Figure 4 shows the side of the second cylindrical bag that is in contact with the lower abdomen of the human body P and the side opposite to it. Figure 5 shows the side of the second cylindrical bag that is in contact with the lower abdomen of the human body P. Note that the waist belt 7 and side belts 21 are omitted in Figures 4 and 5.

[0048] (Mounting structure of upper rod 9) As shown in Figures 4 and 5, the first upper bag 61 is provided near the longitudinal center of the second cylindrical bag 6, on the side that contacts the lower abdomen of the human body P (see Figure 5). The first upper bag 61 opens toward the second chest pad 42. The second upper bag 62 (see Figure 4) is provided on the second chest pad 42. The second upper bag 62 opens toward the second cylindrical bag 6. The second upper bag 62 is positioned above the first upper bag 61 when the human body P is in an upright position.

[0049] The first upper bag 61 and the second upper bag 62 are connected by an upper connecting belt (upper connector) 63. The upper connecting belt 63 is length-adjustable. Figures 4 and 5 show a case in which the upper connecting belt 63 is equipped with a buckle 64. The length of the upper connecting belt 63 can be adjusted using the buckle 64. The length of the upper connecting belt 63 is adjusted, for example, to match the length of the upper rod 9.

[0050] One end of the upper rod 9 (the lower end in the figure) is housed in the first upper bag 61, and the other end of the upper rod 9 (the upper end in the figure) is housed in the second upper bag 62 (see Figure 4). As a result, one end of the upper rod 9 (the lower end in the figure) is fixed to the second cylindrical bag 6, and the other end of the upper rod 9 (the upper end in the figure) is fixed to the second chest pad 42. The upper connecting belt 63 is positioned over the upper rod 9 (see Figures 4 and 5). In this way, the upper rod 9 can be easily attached to the second cylindrical bag 6 and the second chest pad 42. Furthermore, by removing the upper rod 9 from the first upper bag 61 and the second upper bag 62, the upper rod 9 can be easily removed from the second cylindrical bag 6 and the second chest pad 42.

[0051] The first upper bag 61 and the second upper bag 62 are formed from, for example, a piece of cloth or a belt (upper connecting belt 63). In the case of a belt, one end is folded back a few centimeters in the lengthwise direction and overlapped, and both edges are sewn together to form a bag. The first upper bag 61 and the second upper bag 62 may be directly attached to the second tubular bag 6 or the second chest pad 42, or they may be attached to the second tubular bag 6 or the second chest pad 42 by a piece of cloth or the like. In Figure 4, the first upper bag 61 is attached to the second tubular bag 6 by a piece of cloth 161. The second upper bag 62 is directly attached to the second chest pad 42.

[0052] (Mounting structure of the lower rod 8) As shown in Figures 4 and 5, the second cylindrical bag 6 has first lower bags 71 on both sides of the first upper bag 61. The first lower bag 71 on the side of the center of the human body P is located on the side that contacts the lower abdomen of the human body P (see Figure 5). The first lower bag 71 on the left side of the human body P is located on the side opposite to the side that contacts the lower abdomen of the human body P. Each first lower bag 71 opens toward the leg pad 3. Two second lower bags 72 are provided on the leg pad 3 at intervals. The second lower bags 72 open toward the second cylindrical bag 6. Each second lower bag 72 is positioned below each first lower bag 71 when the human body P is in an upright position.

[0053] The first lower bag 71 and the second lower bag 72 below it are connected by a lower connecting belt (lower connector) 73. The lower connecting belt 73 is length-adjustable. Figures 4 and 5 show a case with a buckle 74. The length of the lower connecting belt 73 can be adjusted using the buckle 74. The length of the lower connecting belt 73 is adjusted, for example, to match the length of the lower rod 8.

[0054] One end of the lower rod 8 (the upper end in the figure) is housed in the first lower bag 71, and the other end of the lower rod 8 (the lower end in the figure) is housed in the second lower bag 72, thereby fixing one end of the lower rod 8 to the second cylindrical bag 6 and the other end of the lower rod 8 to the leg pad 3. The lower connecting belt 73 is placed over the lower rod 8 (see Figures 4 and 5). As described above, the lower rod 8 is secured to the second cylindrical bag 6 and Leg pad 3 It can be easily attached to the bag. Furthermore, by removing the lower rod 8 from the first lower bag 71 and the second lower bag 72, the lower rod 8 can be easily detached from the second cylindrical bag 6 and the leg pad 3.

[0055] The first lower bag 71 and the second lower bag 72 are formed from, for example, cloth or part of a belt (lower connecting belt 73). The first lower bag 71 and the second lower bag 72 may be directly attached to the second cylindrical bag 6 or the leg pad 3, or they may be attached to the first lower bag 71 and the second lower bag 72 by a piece of cloth or the like. In Figure 4, the first lower bag 71 is attached to the second cylindrical bag 6 by a piece of cloth 171. The second lower bag 72 is directly attached to the leg pad 3.

[0056] The above describes an example of the attachment structure of the upper rod 9 to the second cylindrical bag 6 and the second chest pad 42 located on the left side of the human body P, and an example of the attachment structure of the lower rod 8 to the second cylindrical bag 6 and the leg pad 3 located on the left side of the human body P. However, the attachment structure of the upper rod 9 to the first cylindrical bag 5 and the first chest pad 41 located on the right side of the human body P, and the attachment structure of the lower rod 8 to the first cylindrical bag 5 and the leg pad 2 located on the right side of the human body P, are configured similarly to those described above.

[0057] Next, the operation (assistance of human body movements) of the motion support device 101 having this configuration will be explained with reference to Figures 6 to 9.

[0058] Figures 6, 7, and 9 sequentially show the process (bending the knees and lowering the hips) of a user wearing the movement support device 101 from the upright position shown in Figures 1 and 2 to squatting. Note that the upper limbs are not shown in Figures 6, 7, and 9.

[0059] As shown in Figures 6 and 7, when the user bends forward and squats, the upper rod 9 rotates forward around the cylindrical bag 1 (first cylindrical bag 5 and second cylindrical bag 6) as a pivot point, following the movement of the user's upper body. As the upper rod 9 rotates, the upper end of the side belt 21 is pulled. The lower rod 8 also rotates upward around the cylindrical bag 1 as a pivot point, following the movement of the user's thighs.

[0060] As a result of the above actions, as shown in Figure 8, the second cylindrical bag 6 is twisted by the lower end 9a of the upper rod 9 and the upper end 8a of the lower rod 8, and the second cylindrical bag 6 deforms so that its volume decreases. In addition, as the user squats, the second cylindrical bag 6, which is located in front of the user's lower abdomen, is pressed against the lower end of the upper rod 9 and the upper end of the lower rod 8, and this pressure also deforms the second cylindrical bag 6 so that its volume decreases. Furthermore, as the user bends forward, the upper rod 9 pulls on the end of the second cylindrical bag 6 via the side belt 21, causing the end of the second cylindrical bag 6 to deform (kink deformation) so that it bends with the connection point (7a) of the waist belt 7 as the bending point. As the user bends their knees further and lowers their hips further, as shown in Figure 9, the second cylindrical bag 6 is pressed further against the lower end of the upper rod 9 and the upper end of the lower rod 8, and this pressure deforms the second cylindrical bag 6 so that its volume decreases even further. Furthermore, the end of the second cylindrical bag 6 bends even more. The first cylindrical bag 5, positioned to the right of the human body P, deforms in the same way as the second cylindrical bag 6, positioned to the left of the human body P.

[0061] The reaction forces resulting from these deformations act as follows: The above reaction forces are transmitted to the first chest pad 41 and the second chest pad 42 via the upper rod 9 and the side belt 21, causing the first chest pad 41 and the second chest pad 42 to act as a force that lifts the user's chest (for example, forces Fa and Fc shown in Figure 8). The above reaction forces are also transmitted to the leg pads 2 and 3 via the lower rod 8, causing the leg pads 2 and 3 to act as a force that pushes down the user's thighs (for example, force Fb shown in Figure 8). Forces Fa and Fb shown in Figure 8 are reaction forces that restore the cylindrical bag 1 (first cylindrical bag 5, second cylindrical bag 6), whose volume has been reduced, to its original volume. Force Fc shown in Figure 8 is a reaction force that restores the cylindrical bag 1 (first cylindrical bag 5, second cylindrical bag 6), whose volume has been reduced due to bending, to its original state. With the assistance of these forces, the user can easily stand up from the squatting position shown in Figure 9 while carrying the luggage.

[0062] The above describes the action of a user bending forward from an upright position and squatting (bending the knees and lowering the hips) to lift an object with both hands. However, assistance is also provided for other actions, such as bending forward, leaning forward, and maintaining a half-crouching posture.

[0063] Furthermore, as shown in Figures 2 and 3, in the second cylindrical bag 6 positioned on the left side of the human body P, the connection position (7a) of the waist belt 7 is closer to one end of the second cylindrical bag 6 (the end positioned on the left side of the human body P or the end positioned close to the left side of the human body P) than the fixing position (9a) of the upper rod 9 and the fixing positions (8a) of the two lower rods 8. In other words, the upper rod 9 and the lower rods 8 are not fixed to the bending portion of the second cylindrical bag 6 (the portion from the connection position (7a) of the waist belt 7 to the connection position (21a) of the side belt 21) when the upper rod 9 pulls the end of the second cylindrical bag 6 via the side belt 21 (see Figures 3 and 8). Therefore, when the end of the second cylindrical bag 6 is pulled, the end of the second cylindrical bag 6 is more likely to bend. On the other hand, the upper rod 9 and the lower rod 8 are fixed to the portion of the second cylindrical bag 6 that does not bend when pulled via the side belt 21 (the portion opposite to the connection position (21a) of the side belt 21 relative to the connection position (7a) of the waist belt 7). Therefore, the lower end of the upper rod 9 and the upper end of the lower rod 8 make the second cylindrical bag 6 prone to deformation, which reduces its volume. The reaction force resulting from the above deformation improves the ability to assist in movements such as straightening the body, leaning forward, and maintaining a crouched position.

[0064] Furthermore, the mounting structure of the upper rod 9 and lower rod 8 shown in Figures 3 and 4 does not require any processing such as drilling holes or forming slits in the upper rod 9 and lower rod 8. When replacing these rods with rods of a different length, there is no need to process the rods of the other length. In addition, since there is no need to use separate parts, the increase in the number of parts of the motion support device 101 can be kept to a minimum.

[0065] Specifically, as shown in Figure 4, the upper rod 9 can be easily attached by simply housing one end of the upper rod 9 in the first upper bag 61 provided on the second cylindrical bag 6 and housing the other end of the upper rod 9 in the second upper bag 62 provided on the second chest pad 42. Furthermore, the size of the movement support device 101 can be easily changed by replacing the upper rod 9 with another upper rod 9 of a different length and adjusting the length of the upper connecting belt 63 to match the length of the other upper rod 9. This expands the range of user body sizes that can be accommodated by a single size of movement support device.

[0066] The same applies to the mounting structure of the lower rod 8. As shown in Figure 4, the lower rod 8 can be easily attached by simply housing one end of the lower rod 8 in the first lower bag 71 provided on the second cylindrical bag 6 and housing the other end of the lower rod 8 in the second lower bag 72 provided on the leg pad 3. The size of the movement support device 101 can be easily changed by replacing the lower rod 8 with another lower rod 8 of a different length and adjusting the length of the lower connecting belt 73 to match the length of the other lower rod 8. This expands the range of user body sizes that can be accommodated by a single size of movement support device.

[0067] Furthermore, as shown in Figure 1, the movement support device 101 has a so-called front-opening structure. Specifically, the first cylindrical bag 5 and the second cylindrical bag 6 can be connected at the front of the human body P by the bag connecting belt 30, and the first chest pad 41 and the second chest pad 42 can be connected by the pad connecting belt 50. This makes it easy for the user to put on the movement support device 101. Also, the connection between the first cylindrical bag 5 and the second cylindrical bag 6 can be released at the front of the human body P by the bag connecting belt 30, and the connection between the first chest pad 41 and the second chest pad 42 can be released by the pad connecting belt 50, making it easy for the user to remove the movement support device 101.

[0068] Furthermore, since the bag connecting belt 30 and the pad connecting belt 50 are configured to be adjustable in length, the size of the movement support device 101 can be changed. If the side belts 21 are also configured to be adjustable in length, the range of sizes of the movement support device 101 can be further expanded. With this configuration, a single size of movement support device can be used for a wide range of workers' body sizes, eliminating the need to prepare many movement support devices of different sizes to suit the workers' body types.

[0069] Furthermore, as shown in Figures 3 and 8, the rods are attached to the second cylindrical bag 6 in the order of lower rod 8, upper rod 9, and lower rod 8, from one end to the other in the longitudinal direction of the second cylindrical bag 6. The same applies to the first cylindrical bag 5. In this case, a clear twist occurs in the first cylindrical bag 5 both between the lower rod 8 and upper rod 9 on the central side of the human body P, and between the lower rod 8 and upper rod 9 on the left side of the human body P. This allows for a wider range of torsional deformation of the cylindrical bag, increasing the freedom of movement and stability of the human body P.

[0070] [Second Embodiment] Next, the second embodiment will be described with reference to Figures 10 to 15. The difference between the second embodiment and the first embodiment is that the movement support device 201 further includes a hand-held belt 280. Note that the same reference numerals are used for components identical to those in the first embodiment described above, and their descriptions are omitted as appropriate. Also, in Figures 10 to 15, some components of the movement support device 201 (such as the first chest pad 41, the second chest pad 42, the bag connecting belt 30, and the pad connecting belt 50) are omitted, but the movement support device 201 has the same configuration as the movement support device 101 according to the first embodiment, except that it further includes a hand-held belt 280.

[0071] As shown in Figure 10, the hand strap 280 is connected to one end of the upper rod 9. Here, "one end of the upper rod 9" refers to the end (upper end) of the upper rod 9 that is positioned on the upper side when the human body P is in an upright position, and is not fixed to the cylindrical bag 1 (first cylindrical bag 5, second cylindrical bag 6). In Figure 10, as an example, one end of the hand strap 280 is connected to one end (upper end) of the upper rod 9. The hand strap 280 may be directly connected to the upper end of the upper rod 9, or it may be connected via another member. For example, the hand strap 280 may be connected to the upper end of the upper rod 9 via the second chest pad 42 or the side belt 21. The hand strap 280 may be configured to be length adjustable. The other end of the hand strap 280 is not connected to anything.

[0072] Figure 10 shows the left side of the human body P, but on the right side of the human body P, the hand-held belt 280 is connected to the upper end of the upper rod 9, just as described above.

[0073] Next, the operation of the motion support device 201 will be explained with reference to Figures 10 to 15. Here, we will mainly explain the unique operation of the motion support device 201, for example, the operation that can be obtained in addition to that of the motion support device 101 according to the first embodiment, and we may omit explanations of operations that are common to the operation of the motion support device 101.

[0074] A user wearing the mobility support device 201 bends forward from the upright position shown in Figure 10, as shown in Figure 11, and holds both the luggage B and the other end of the hand strap 280 together with their hand, for example, by placing the other end of the hand strap 280 over the handle of luggage B.

[0075] Next, the user squats (bends knees and lowers hips) as shown in Figure 12, and then stands up while holding the luggage with their hands. As shown in Figures 13, 14, and 15 in order, during the process of the user standing up, the reaction force due to the deformation of the cylindrical bag 1 (first cylindrical bag 5 and second cylindrical bag 6) (for example, forces Fa and Fc shown in Figure 8) is transmitted via the upper rod 9 and side belts 21 to the chest pads 4 (first chest pad 41 and second chest pad 42 (see Figures 1 and 2, etc.)), which are not shown. In addition to the chest pads 4 acting as a force to lift the user's chest, the force is also transmitted via the upper rod 9 and side belts 21 to the hand strap 280, which acts as a force to lift the luggage B. Furthermore, the reaction force (for example, the force Fb shown in Figure 8) caused by the deformation of the cylindrical bag 1 (first cylindrical bag 5 and second cylindrical bag 6) is transmitted to the leg pads 2 and 3 via the lower rod 8, causing the leg pads 2 and 3 to act as a force that pushes down on the user's thighs. This assists in raising the body, maintaining a forward-leaning or crouching posture, and also assists in lifting luggage.

[0076] Furthermore, as the user stands up, in addition to the above, the hand strap 280 is pulled by luggage B, causing the upper rod 9 to rotate forward with the cylindrical bag 1 (first cylindrical bag 5 and second cylindrical bag 6) as the pivot point. As a result, the upper rod 9 pulls on the ends of the cylindrical bag 1 (first cylindrical bag 5 and second cylindrical bag 6) via the side belts 21. As a result, the cylindrical bag 1 attempts to return to its original shape, deforms so that its volume decreases, and the ends of the cylindrical bag 1 (first cylindrical bag 5 and second cylindrical bag 6) deform so that they bend.

[0077] Furthermore, as the user stands up, the hand strap 280 is pulled by the luggage B, causing the upper rod 9 to rotate forward around the cylindrical bag 1 (first cylindrical bag 5 and second cylindrical bag 6) as a pivot point, and the side belts 21 are pulled, causing the upper rod 9 and the chest pads 4 (first chest pad 41 and second chest pad 42, not shown) to move away from the chest of the person P. This increases the assistance force for lifting the luggage. The user can more easily maintain a correct posture, the strain on their arms is reduced, and they can stand up while holding luggage B.

[0078] Although embodiments of the present invention have been described above based on examples, it should be understood that the specific configurations are not limited to these embodiments. The scope of the present invention is indicated by the claims rather than the above description, and all modifications within the meaning and scope equivalent to the claims are included.

[0079] For example, the mounting structure for the upper rod 9 and the lower rod 8 (see Figures 4 and 5) is not limited to the mounting structure described above. For example, the upper rod and the lower rod may be directly fixed to the cylindrical bag, chest pad, or leg pad, or they may be fixed using other components.

[0080] Furthermore, in the first and second embodiments described above, the motion support device 101 and motion support device 201 have a so-called front-opening configuration, as shown in Figure 1, where the portion located on the right side of the human body P and the portion located on the left side of the human body P can be connected and disconnected. However, the motion support device according to the present invention does not have to have a front-opening configuration. For example, the configuration may be such that the connection between the first cylindrical bag 5 located on the right side of the human body P and the second cylindrical bag 6 located on the left side cannot be disconnected. The configuration may also be such that the connection between the first chest pad 41 located on the right side of the human body P and the second chest pad 42 located on the left side cannot be disconnected. Also, the cylindrical bag 1 may not be composed of two parts, the first cylindrical bag 5 and the second cylindrical bag 6, but rather of one cylindrical bag. The chest pad 4 may not be composed of two parts, the first chest pad 41 and the second chest pad 42, but rather of one chest pad.

[0081] Furthermore, in the first and second embodiments described above, the bag connecting belt 30 and pad connecting belt 50 (see Figure 1), which are positioned on the front side of the human body P, are configured to allow adjustment of belt length. However, in the present invention, the bag connecting belt and pad connecting belt may be configured in a way that does not allow adjustment of belt length.

[0082] Furthermore, in the first and second embodiments described above, as shown in Figure 8, the lower rod 8, upper rod 9, and lower rod 8 are arranged in that order from one end to the other in the longitudinal direction of the second cylindrical bag 6. However, in the present invention, the arrangement of the lower rod 8 and upper rod 9 can be changed. For example, the rods may be attached to the second cylindrical bag 6 in the order of two lower rods 8 and one upper rod 9, from one end to the other.

[0083] Furthermore, in the first and second embodiments described above, as shown in Figure 4, the upper end of the lower rod 8, which is located on the left side of the human body P, is fixed to the surface of the second cylindrical bag 6 opposite to the surface that contacts the lower abdomen of the human body P (user). As shown in Figure 5, the lower end of the upper rod 9 and the upper end of the lower rod 8, which is located on the center side of the human body P, are fixed to the surface of the second cylindrical bag 6 that contacts the lower abdomen of the human body P (user). However, the surfaces to which the upper rod and lower rod are fixed are not limited to those described above and can be changed. For example, the upper rod or all of the lower rods may be fixed to the surface of the second cylindrical bag 6 that contacts the lower abdomen of the human body P (user) or to the surface opposite to the surface that contacts the lower abdomen of the human body P (user). Alternatively, the upper rod may be fixed to the surface of the second cylindrical bag 6 that contacts the lower abdomen of the human body P (user) or to the surface opposite to the surface that contacts the lower abdomen of the human body P (user), and the two lower rods may be fixed to the surface opposite to the surface to which the upper rod is fixed.

[0084] In the first and second embodiments described above, the waist belt 7 is positioned on the sides and rear of the human body P, as shown in Figures 2 and 10, etc. However, the waist belt may be positioned only on the rear of the human body P, or it may be positioned on the rear, sides, and front of the human body P.

[0085] In the first and second embodiments described above, the side belts 21 are positioned on the sides of the human body P, as shown in Figures 1, 2, and 10, etc. However, the side belts 21 may also be positioned on the front and / or back sides of the human body P, in addition to the sides.

[0086] Furthermore, in the first and second embodiments described above (see Figure 1), the chest pads 4 (first chest pad 41, second chest pad) are sized to fit only on the chest of the human body P. However, the chest pads 4 (first chest pad 41, second chest pad) may be large enough vertically to overlap with the cylindrical bags (first cylindrical bag 5, second cylindrical bag 6) located below them. In this case, the upper rod 9 is positioned above the chest pads 4 and cylindrical bags 1, making it less likely for the upper rod 9 to come into contact with the human body P. This reduces the discomfort the user may experience from the rod coming into contact with the human body P.

[0087] [Form 1] Next, we will describe other motion support devices equipped with the mounting structures for the upper and lower rods shown in Figures 4 and 5.

[0088] First, the configuration of the movement support device 301 related to form 1 will be explained with reference to Figures 16 to 21. Note that the upper limbs are not shown in Figures 16 and 17.

[0089] As shown in Figures 16 and 17, the movement support device 301 assists the movement of the human body P and comprises an airtight cylindrical bag 1 positioned on the abdomen (lower abdomen) of the human body P (user), a pair of leg pads 2 and 3 positioned on the front sides of the left and right thighs of the human body P, and a chest pad 4 positioned on the front side of the upper body of the human body P and above the cylindrical bag 1. The cylindrical bag 1 is positioned on the abdomen (lower abdomen) of the human body P by a waist belt 7.

[0090] The cylindrical bag 1 is, for example, a bag in which gas is sealed inside, and it is preferable that the bag is sealed. The cylindrical bag 1 is deformed when pressed in a way that reduces its volume, and this deformation generates a reaction force as an assisting force. Therefore, the cylindrical bag 1 is designed so that the gas (e.g., air) sealed inside does not leak out to the outside when it is deformed, i.e., it is airtight. Specifically, as the cylindrical bag 1, for example, a base fabric with a coating film connected together, or a fiber-reinforced hose, etc., can be used to ensure internal pressure by sealing in gas.

[0091] The tubular bag 1 of this embodiment consists of a first tubular bag 5 positioned on the right side of the abdomen (lower right side) of the human body P, and a second tubular bag 6 positioned on the left side of the abdomen (lower left side). The first tubular bag 5 and the second tubular bag 6 are connected at their longitudinal ends (for example, by sutures). The connection point between the first tubular bag 5 and the second tubular bag 6 is located approximately in the center of the abdomen (lower abdomen) of the human body P. Furthermore, when the human body P is in an upright position, the first tubular bag 5 is positioned slightly above the right hip joint of the human body P, and the second tubular bag 6 is positioned slightly above the left hip joint of the human body P.

[0092] As described above, when the cylindrical bag 1 is composed of a first cylindrical bag 5 and a second cylindrical bag 6 that are connected to each other, the cylindrical bag 1 bends, for example, into a V shape with the connection point between the first cylindrical bag 5 and the second cylindrical bag 6 as the pivot point. The cylindrical bag 1 deforms to allow the human body P to move easily, and this resistance to deformation assists the squatting motion, making it easier for the user to perform forward bending and squatting movements.

[0093] The leg pads 2 and 3 are made of, for example, cloth. The leg pad 2 and the first cylindrical bag 5 are connected by a lower rod 8. Similarly, the leg pad 3 and the second cylindrical bag 6 are connected by a lower rod 8. These lower rods 8 extend vertically along the thighs when the human body P is in an upright position. In this embodiment, two lower rods 8 are provided on each side of the left and right thighs, spaced apart. The lower ends of the two lower rods 8 are fixed to both ends of the leg pad 2 (leg pad 3). The lower rods 8 are, for example, hollow rod members made of FRP. By providing two lower rods 8 on each side of the left and right thighs, the movement of the leg pads 2 and 3 that press against the thighs can be stabilized.

[0094] The chest pad 4, positioned on the chest of the human body P, is made of, for example, cloth. The chest pad 4 and the first cylindrical bag 5 are connected by an upper rod 9. Similarly, the chest pad 4 and the second cylindrical bag 6 are connected by an upper rod 9. These upper rods 9 extend vertically along the abdomen when the human body P is in an upright position. In this embodiment, one upper rod 9 is provided on each side of the left and right cylindrical bags (first cylindrical bag 5, second cylindrical bag 6). The upper ends of the two upper rods 9 are fixed to both ends of the chest pad 4. The upper rods 9 are, for example, hollow rod members made of FRP.

[0095] The mounting structure between the upper rod 9 and the second cylindrical bag 6, and the mounting structure between the lower rod 8 and the second cylindrical bag 6, are as shown in Figures 4 and 5, for example. Figure 4 shows the side of the second cylindrical bag that contacts the lower abdomen of the human body P and the side opposite to it. Figure 5 shows the side of the second cylindrical bag that contacts the lower abdomen of the human body P. Note that the waist belt 7 is omitted in Figures 4 and 5. Note that the mounting structure between the upper rod 9 and the first cylindrical bag 5, and the mounting structure between the lower rod 8 and the first cylindrical bag 5, are the same as in the case of the second cylindrical bag 6.

[0096] (Mounting structure of upper rod 9) As shown in Figures 4 and 5, the first upper bag 61 is provided near the longitudinal center of the second cylindrical bag 6, on the side that contacts the lower abdomen of the human body P (see Figure 5). The first upper bag 61 opens toward the second chest pad 42. The second upper bag 62 (see Figure 4) is provided on the second chest pad 42. The second upper bag 62 opens toward the second cylindrical bag 6. The second upper bag 62 is positioned above the first upper bag 61 when the human body P is in an upright position.

[0097] The first upper bag 61 and the second upper bag 62 are connected by an upper connecting belt (upper connector) 63. The upper connecting belt 63 is length-adjustable. Figures 4 and 5 show a case in which the upper connecting belt 63 is equipped with a buckle 64. The length of the upper connecting belt 63 can be adjusted using the buckle 64. The length of the upper connecting belt 63 is adjusted, for example, to match the length of the upper rod 9.

[0098] One end of the upper rod 9 (the lower end in the figure) is housed in the first upper bag 61, and the other end of the upper rod 9 (the upper end in the figure) is housed in the second upper bag 62 (see Figure 4). As a result, one end of the upper rod 9 (the lower end in the figure) is fixed to the second cylindrical bag 6, and the other end of the upper rod 9 (the upper end in the figure) is fixed to the second chest pad 42. The upper connecting belt 63 is positioned over the upper rod 9 (see Figures 4 and 5). In this way, the upper rod 9 can be easily attached to the second cylindrical bag 6 and the second chest pad 42. Furthermore, by removing the upper rod 9 from the first upper bag 61 and the second upper bag 62, the upper rod 9 can be easily removed from the second cylindrical bag 6 and the second chest pad 42.

[0099] The first upper bag 61 and the second upper bag 62 are formed from, for example, a piece of cloth or a belt (upper connecting belt 63). In the case of a belt, one end is folded back a few centimeters in the lengthwise direction and overlapped, and both edges are sewn together to form a bag. The first upper bag 61 and the second upper bag 62 may be directly attached to the second tubular bag 6 or the second chest pad 42, or they may be attached to the second tubular bag 6 or the second chest pad 42 by a piece of cloth or the like. In Figure 4, the first upper bag 61 is attached to the second tubular bag 6 by a piece of cloth 161. The second upper bag 62 is directly attached to the second chest pad 42.

[0100] (Mounting structure of the lower rod 8) As shown in Figures 4 and 5, the second cylindrical bag 6 has first lower bags 71 on both sides of the first upper bag 61. The first lower bag 71 on the side of the center of the human body P is located on the side that contacts the lower abdomen of the human body P (see Figure 5). The first lower bag 71 on the left side of the human body P is located on the side opposite to the side that contacts the lower abdomen of the human body P. Each first lower bag 71 opens toward the leg pad 3. Two second lower bags 72 are provided on the leg pad 3 at intervals. The second lower bags 72 open toward the second cylindrical bag 6. Each second lower bag 72 is positioned below each first lower bag 71 when the human body P is in an upright position.

[0101] The first lower bag 71 and the second lower bag 72 below it are connected by a lower connecting belt (lower connector) 73. The lower connecting belt 73 is length-adjustable. Figures 4 and 5 show a case with a buckle 74. The length of the lower connecting belt 73 can be adjusted using the buckle 74. The length of the lower connecting belt 73 is adjusted, for example, to match the length of the lower rod 8.

[0102] One end of the lower rod 8 (the upper end in the figure) is housed in the first lower bag 71, and the other end of the lower rod 8 (the lower end in the figure) is housed in the second lower bag 72, thereby fixing one end of the lower rod 8 to the second cylindrical bag 6 and the other end of the lower rod 8 to the leg pad 3. The lower connecting belt 73 is positioned over the lower rod 8 (see Figures 4 and 5). As described above, the lower rod 8 can be easily attached to the second cylindrical bag 6 and the second chest pad 42. Furthermore, by removing the lower rod 8 from the first lower bag 71 and the second lower bag 72, the lower rod 8 can be easily removed from the second cylindrical bag 6 and the leg pad 3.

[0103] The first lower bag 71 and the second lower bag 72 are formed from, for example, cloth or part of a belt (lower connecting belt 73). The first lower bag 71 and the second lower bag 72 may be directly attached to the second cylindrical bag 6 or the leg pad 3, or they may be attached to the first lower bag 71 and the second lower bag 72 by a piece of cloth or the like. In Figure 4, the first lower bag 71 is attached to the second cylindrical bag 6 by a piece of cloth 171. The second lower bag 72 is directly attached to the leg pad 3.

[0104] The above describes an example of the attachment structure of the upper rod 9 to the second cylindrical bag 6 and the second chest pad 42 located on the left side of the human body P, and an example of the attachment structure of the lower rod 8 to the second cylindrical bag 6 and the leg pad 3 located on the left side of the human body P. However, the attachment structure of the upper rod 9 to the first cylindrical bag 5 and the first chest pad 41 located on the right side of the human body P, and the attachment structure of the lower rod 8 to the first cylindrical bag 5 and the leg pad 2 located on the right side of the human body P, are configured similarly to those described above.

[0105] Figures 18 and 19 schematically show the first cylindrical bag 5, the lower rod 8, and the upper rod 9, which are positioned on the right side of the flank of the human body P, to illustrate the positional relationship between the lower rod 8 and the upper rod 9.

[0106] As shown in Figure 18, in this embodiment, the upper end of the lower rod 8 and the lower end of the upper rod 9 are attached to the first cylindrical bag 5 such that the upper rod 9 is positioned between the two lower rods 8 in the longitudinal direction of the first cylindrical bag 5 (the same applies to the second cylindrical bag 6).

[0107] Furthermore, in the longitudinal direction of the first cylindrical bag 5, the rods may be attached to the first cylindrical bag 5 from one end to the other in the order of, for example, two lower rods 8 and one upper rod 9. In this case, when the human body P bends forward or squats, the first cylindrical bag 5 is twisted by the upper ends of the lower rods 8 and the lower ends of the upper rods 9, but not much twisting occurs in the first cylindrical bag 5 (cylindrical bag 1) in the portion between the two lower rods 8.

[0108] In contrast, in the case of this embodiment shown in Figure 18, as shown in Figure 19, a clear twist occurs in the first cylindrical bag 5 in the longitudinal direction of the first cylindrical bag 5 both between the lower rod 8 and upper rod 9 on the upper left side of the figure, and between the lower rod 8 and upper rod 9 on the lower right side of the figure. This allows for a wider range of torsional deformation of the cylindrical bag, thereby increasing the degree of freedom and stability of movement of the human body P.

[0109] Next, we will describe the operation (assistance with human body movements) of the motion support device 301 having this configuration.

[0110] Figure 20 is a side view showing a user wearing the movement support device 301 performing the action of squatting (bending the knees and lowering the hips) from the upright position shown in Figures 16 and 17, and lifting an object with both hands. Note that the upper limbs are omitted from Figure 20 onward.

[0111] As shown in Figure 20, when the user squats, the upper rod 9 rotates forward around the cylindrical bag 1 (first cylindrical bag 5 and second cylindrical bag 6) as a pivot point, following the movement of the user's upper body. The lower rod 8 also rotates upward around the cylindrical bag 1 as a pivot point, following the movement of the user's thighs.

[0112] As a result, the lower end of the upper rod 9 and the upper end of the lower rod 8 twist the cylindrical bag 1, as shown in Figure 19, and deform the cylindrical bag 1 so that its volume decreases. In addition, when the user squats, the cylindrical bag 1, which is located in front of the user's lower abdomen, is pressed against the lower end of the upper rod 9 and the upper end of the lower rod 8, and this pressure also deforms the cylindrical bag 1 so that its volume decreases.

[0113] The reaction forces generated by these deformations are transmitted to the chest pad 4 via the upper rod 9, causing the chest pad 4 to act as a force that lifts the user's chest (for example, force Fa shown in Figure 19). Furthermore, these reaction forces are transmitted to the leg pads 2 and 3 via the lower rod 8, causing the leg pads 2 and 3 to act as a force that pushes down the user's thighs (for example, force Fb shown in Figure 19). With the assistance of these forces, the user can easily stand up while carrying luggage.

[0114] Figure 21 is a side view showing a user wearing the movement support device 301 bending forward from the upright position shown in Figure 17 and lifting an object with both hands. Note that the upper limbs are not shown in Figure 21.

[0115] As shown in Figure 21, when the user bends forward, the upper rod 9 rotates forward using the cylindrical bag 1 (first cylindrical bag 5 and second cylindrical bag 6) as a pivot point, following the movement of the user's upper body. The lower rod 8 also rotates relative to the cylindrical bag 1 as the cylindrical bag 1 changes direction downward, following the movement of the user's lower abdomen.

[0116] As a result, the lower end of the upper rod 9 and the upper end of the lower rod 8 twist the cylindrical bag 1, as shown in Figure 19, and deform the cylindrical bag 1 so that its volume decreases. In addition, when the user bends forward, the cylindrical bag 1, which is located in front of the user's lower abdomen, is pressed against the lower end of the upper rod 9 and the upper end of the lower rod 8, and this pressure also deforms the cylindrical bag 1 so that its volume decreases.

[0117] The reaction forces generated by these deformations are transmitted to the chest pad 4 via the upper rod 9, causing the chest pad 4 to act as a force that lifts the user's chest (for example, force Fa shown in Figure 19). Furthermore, these reaction forces are transmitted to the leg pads 2 and 3 via the lower rod 8, causing the leg pads 2 and 3 to act as a force that pushes against the user's thighs (for example, force Fb shown in Figure 19). With the assistance of these forces, the user can easily raise their upper body while carrying luggage.

[0118] Figure 22 is a perspective view showing a first modified example of the first cylindrical bag 5 to which the upper rod 9 and lower rod 8 are attached. In Figure 22 and Figure 23, which will be described later, the mounting structure of the upper rod 9 and lower rod 8 is simply shown to indicate where the upper rod 9 and lower rod 8 are attached.

[0119] In the first modified example shown in Figure 22, the upper end of the lower rod 8 is fixed to the side of the first cylindrical bag 5 opposite to the side that contacts the lower abdomen of the human body P (user), and the lower end of the upper rod 9 is fixed to the opposite side, i.e., the side of the first cylindrical bag 5 that contacts the lower abdomen of the human body P (user).

[0120] Figure 23 is a perspective view showing a second modified example of the first cylindrical bag 5 to which the upper rod 9 and lower rod 8 are attached. In the second modified example shown in Figure 23, the lower end of the upper rod 9 is fixed to the side of the first cylindrical bag 5 opposite to the side that contacts the lower abdomen of the person P (user), and the upper end of the lower rod 8 is fixed to the opposite side, i.e., the side of the first cylindrical bag 5 that contacts the lower abdomen of the person P (user).

[0121] Although not shown in the diagram, both the lower end of the upper rod 9 and the upper end of the lower rod 8 may be fixed to the side of the first cylindrical bag 5 on the side that contacts the lower abdomen of the person P (user). Alternatively, both the lower end of the upper rod 9 and the upper end of the lower rod 8 may be fixed to the side of the first cylindrical bag 5 on the side opposite to the side that contacts the lower abdomen of the person P (user).

[0122] Alternatively, the upper end of one of the two lower rods 8 may be fixed to the side of the first cylindrical bag 5 that is in contact with the lower abdomen of the human body P (user), and the upper end of the other lower rod 8 may be fixed to the opposite side, i.e., the side of the first cylindrical bag 5 that is not in contact with the lower abdomen of the human body P (user).

[0123] Thus, there are various ways in which the upper rod 9 and lower rod 8 are attached to the first cylindrical bag 5 (second cylindrical bag 6, cylindrical bag 1).

[0124] Figures 24 to 27 show Embodiment 2 of the present invention. The differences between Embodiment 2 and Embodiment 1 are as follows. In the description of the motion support device 302 in Embodiment 2, the same reference numerals are used for components that constitute the motion support device 301 in Embodiment 1, and their descriptions are omitted as appropriate. Note that the upper limbs are not shown in Figures 24 to 27.

[0125] The chest pad 4 and the first cylindrical bag 5 that constitute the movement support device 301 of form 1, as shown in Figure 16, are simply connected by an upper rod 9, and the chest pad 4 does not slide in the axial direction relative to the upper rod 9. Therefore, when the user performs a squatting motion (see Figure 20) or a bending motion (see Figure 21) from the upright position shown in Figures 16 and 17, the user's lower abdomen and chest come closer together, causing the chest pad 4 to shift relatively upward. If the position of the chest pad 4 is high when the user is upright, this may cause the chest pad 4 to hit the user's chin or other parts of their body when the user squats or bends forward.

[0126] Therefore, in the motion support device 302 of form 2 shown in Figures 24 to 27, the chest contact plate 11, which serves as the chest pad, is designed to slide axially relative to the upper rod 9, so that the chest pad 4 does not come into contact with the user's chin or other body parts when the user squats or bends forward.

[0127] The chest contact plate 11 is, for example, hollow, and a spring 12 is built into its hollow portion as a sliding mechanism for sliding the chest contact plate 11 along the axial direction of the upper rod 9. This spring 12 is built into the hollow portion of the chest contact plate 11 so as to bias the chest contact plate 11 in the direction away from the upper rod 9 in the axial direction of the upper rod 9.

[0128] In this embodiment, a connecting belt 13, which connects the chest contact plate 11 and the waist belt 7, is positioned on both sides of the human body P (user). One end of the connecting belt 13 is fixed to the waist belt 7, and the other end of the connecting belt 13 is fixed to the chest contact plate 11.

[0129] The operation of the motion support device 302 of form 2 will be described. Note that the operation common to the motion support device 301 of form 1 will be omitted from the explanation, and the operation unique to the motion support device 302, in other words, the additional operations that can be obtained, will be described.

[0130] Figures 24 to 27 are side views showing, in sequence, each state of a user wearing the movement support device 302, from standing to squatting. Note that the upper limbs are not shown in Figures 24 to 27.

[0131] As shown in Figures 24 to 27, when a user bends forward and squats from an upright position, their hips move backward during the process. Following this, one end of the connecting belt 13 (the side fixed to the waist belt 7) also moves backward. As a result, the chest contact plate 11 is pulled by the connecting belt 13, and the chest contact plate 11 slides downward. Therefore, the chest contact plate 11 does not move much relative to its position in front of the user's chest when they are upright. This prevents the chest contact plate 11 from hitting the user's chin or other parts of their body.

[0132] When the user stands up, that is, returns to an upright position, the waist moves forward, loosening the restraint by the connecting belt 13, and the biasing force of the spring 12 causes the chest contact plate 11 to slide upward and return to its original position.

[0133] As described above, the motion support device 301 of form 1 and the motion support device 302 of form 2 do not apply tension to the shoulders like the motion support device described in Patent Document 1, thus reducing the burden on the user's (P) waist. Furthermore, the assisting force for raising the user P is due to the reaction force generated by the deformation of the cylindrical bag 1 (first cylindrical bag 5, second cylindrical bag 6) when it is deformed to reduce its volume. The cylindrical bag 1 (first cylindrical bag 5, second cylindrical bag 6) is relatively lightweight and has a simple structure. In addition, the cylindrical bag 1, rods (upper rod 9 and lower rod 8), etc. do not take up much space when stored. Therefore, the motion support device 301 (302) can be compactly stored in a storage location when not in use. Moreover, since the motion support devices 301 and 302 are lightweight (for example, about 1 kg), they are easy for the user to put on and take off.

[0134] The chest contact plate 11, which constitutes the movement support device 302 of form 1, has a sliding mechanism (spring 12) for sliding the chest contact plate 11. With this configuration, when the user bends forward or squats, the chest contact plate 11 slides downward relative to the upper rod 9, preventing the chest contact plate 11 from hitting the user's chin or other body parts.

[0135] Furthermore, in cases where the user is female, the chest contact plate 11 may be slid downward by the breasts. Therefore, the connecting belt 13 may be omitted.

[0136] However, if the connecting belt 13 is positioned on the side of the human body P (user), as in the motion support device 302 of form 2, the chest contact plate 11 can be slid downward more reliably, regardless of whether the user is male or female.

[0137] The above forms 1 and 2 can be modified as follows.

[0138] The cylindrical bag 1 may not consist of a first cylindrical bag 5 and a second cylindrical bag 6 connected to each other, but rather as a single cylindrical bag. Furthermore, the cylindrical bag 1 may consist of three or more cylindrical bags connected to each other.

[0139] Instead of a spring 12, air (gas) may be used as a sliding mechanism for sliding the chest contact plate 11. For example, an air chamber (gas chamber) may be provided inside the chest contact plate 11, and the chest contact plate 11 may be slid downward relative to the upper rod 9 by the compression of the air in this air chamber. Alternatively, the sliding mechanism may be provided at the upper end of the upper rod 9.

[0140] In the above embodiments 1 and 2, two lower rods 8 are provided on each side of the left and right thighs, spaced apart. Alternatively, three or more lower rods 8 may be provided on each side of the left and right thighs, or one lower rod 8 may be provided on each side of the left and right thighs.

[0141] In both Embodiment 1 and Embodiment 2, it is of course possible to make various other modifications to the extent that a person skilled in the art can foresee. [Explanation of Symbols]

[0142] 1: Cylindrical bag 2: Leg pads 3: Leg pads 4: Chest pad 5: First cylindrical bag 6: Second cylindrical bag 7: Lumbar support belt 7a: One end of the waist belt (connection point) 8: Lower rod 8a: One end of the lower rod (upper end, fixed position) 9: Upper rod 9a: One end of the upper rod (lower end, fixed position) 11: Chest contact plate (chest pad) 12: Spring (sliding mechanism) 13: Connecting belt 21: Side belt 21a: One end of the side belt (connection point) 30: Bag connecting belt 31, 51, 64, 74: Buckle 41: First chest pad 42: Second chest pad 50: Pad connecting belt 61: First upper sac 62: Second upper sac 63: Upper connecting belt (upper connecting body) 71: First lower sac 72: Second lower sac 73: Lower connecting belt (lower connecting body) 280: Handheld belt 101, 201, 301, 302: Movement support equipment P:Human body

Claims

1. A tubular bag with airtightness that is placed on the abdomen of the human body, Leg pads positioned on the front of each of the left and right thighs of the human body, A chest pad positioned on the front of the upper body of the human body and above the cylindrical bag, A lower rod connecting the cylindrical bag and the leg pad, the lower rod extending vertically along the thigh when the human body is in an upright position, An upper rod connecting the tubular bag and the chest pad, the upper rod extending vertically along the abdomen when the human body is in an upright position, A waist belt for positioning the cylindrical bag on the abdomen of a person, comprising a waist belt that connects the ends of the cylindrical bag and is positioned on at least the back of the person, Side belts positioned on each side of the human body, one end of which is connected to the upper end of the upper rod and the other end of which is connected to the cylindrical bag, Equipped with, In the cylindrical bag, the waist belt and the side belt are connected to the portion located on the left side of the human body and the portion located on the right side, respectively. The connection position of the side belt is closer to the end of the cylindrical bag that is positioned on the side of the human body or the end that is positioned close to the side of the human body than the connection position of the waist belt. Movement support equipment.

2. In the motion support device according to claim 1, In each of the portions of the cylindrical bag positioned on the left and right sides of the human body, The connection position of the waist belt is closer to the end of the cylindrical bag that is positioned on the side of the human body or the end that is positioned close to the side of the human body, than the fixing position of the lower rod and the fixing position of the upper rod. Movement support equipment.

3. In the motion support device according to claim 1 or 2, The upper rod is further equipped with a hand strap connected to the upper end of the upper rod. Movement support equipment.

4. In the motion support device according to any one of claims 1 to 3, The cylindrical bag is provided with a first upper pouch body that opens toward the chest pad, The chest pad is provided with a second upper bag that opens toward the cylindrical bag, An upper connecting body that connects the first upper bag body and the second upper bag body and is adjustable in length, Furthermore, One end of the upper rod is housed in the first upper bag, and the other end of the upper rod is housed in the second upper bag. Movement support equipment.

5. In the motion support device according to any one of claims 1 to 4, The cylindrical bag is provided with a first lower bag body that opens toward the leg pad, The leg pad is provided with a second lower bag that opens toward the cylindrical bag, A lower connecting body that connects the first lower bag body and the second lower bag body and is adjustable in length, Furthermore, One end of the lower rod is housed in the first lower bag, and the other end of the lower rod is housed in the second lower bag. Movement support equipment.

6. In the operation support device according to claims 1 to 5, The aforementioned cylindrical bag is A first cylindrical bag is positioned in the right flank of the abdomen, A second cylindrical bag is positioned on the left side of the abdomen, It has, The aforementioned chest pad is A first chest pad positioned on the right front side of the front of the upper body of the human body, A second chest pad positioned on the left front side of the front of the upper body of the human body, It has, A bag connecting belt positioned on the front side of the upper body of the human body and capable of connecting the first cylindrical bag and the second cylindrical bag, A pad connecting belt positioned on the front of the upper body of the human body and capable of connecting the first chest pad and the second chest pad, To further enhance Movement support equipment.

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