JP2008110149A - Chair type training device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an exercise aid allowing a user to easily get basic daily exercise with natural motions such as raising/lowering thighs, opening the thighs, or raising/lowering ankles, etc. while seated and keeping the posture. <P>SOLUTION: A buttocks seat 10 for supporting the user's buttocks, thigh seats 20 for independently supporting the left and right thighs, and footrest seats 30 for supporting the left and right soles are configured as follows: an instep attaching part 37 is attached to each footrest seat for supporting the sole and the instep of a foot, and the left and right footrest seats are connected to the thigh seats with arm-like leg members 33; the thigh seats 20 have a first joint part 21 bendable in the direction of opening the thighs and a second joint part 22 bendable in the vertical direction to the thighs in a setting frame 50, etc.; the left and right arm-like leg members have third bendable joint parts 34 in the knee regions; and the left and right footrest seats have fourth bendable joint parts 35 in the ankle regions. The exercise of opening the thighs, raising/lowering the thighs and ankles is possible by bending the first, second, third and fourth joint parts. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an exercise assisting tool for exercising or rehabilitating muscular strength of a human body, and relates to an improvement of a training apparatus that assists expansion and contraction movements and flexion movements of an upper body and a lower body while sitting on a chair.

  In general, various types of exercise assisting tools such as those for lower limb exercises and upper limb exercises are mainly used as instruments corresponding to individual strength training exercises. In particular, recently, there is an increasing need to train muscle strength necessary for basic daily exercise such as walking, bending and stretching, and for example, an exercise assisting tool suitable for elderly people or rehabilitation after illness has been required.

As an exercise aid for recovering such weakened muscle strength, exercise while sleeping on a bed, exercise while sitting on a chair, or exercise while holding a posture with a walking aid etc. A device (training device) is used according to a user's condition (symptom). For example, Patent Document 1 (Japanese Patent Laid-Open No. 2006-238) proposes an exercise assisting tool that protects the posture while lying on a bed and flexes the lower limbs up and down. Further, Patent Document 2 (Japanese Patent No. 3506455) proposes a device (instrument) that performs a foot kick exercise (a knee joint flexion and extension) and an open leg exercise while sitting on a chair. In the same publication, a stool seat and a footrest member for mounting and supporting the left and right foot portions on the arm member protruding forward from the left and right of the stool seat are provided. An apparatus for training muscle strength by applying a load to an open leg exercise (hip joint flexion and extension) and a foot kick exercise (knee joint flexion and extension) with such a configuration is disclosed.
JP 2006-238 A Japanese Patent No. 3506455 (FIG. 38)

  As described above, in order to stably assist a plurality of movements such as thigh opening leg movement (hip joint lateral flexion / extension), thigh vertical movement (hip joint vertical flexion / extension), ankle movement (heel joint flexion / extension), etc. while sitting on a chair as described above. Has the following problems: First, the user sits on a chair-shaped seat and gains weight while the left and right thighs move left and right (thigh open leg movement) or up and down (thigh vertical movement) around the hip joint. Is done. In other words, if the body weight is biased toward the large retreating part side, the center of gravity moves up and down or up and down every time it is exercised, so it may fall with the chair. For this reason, conventionally, a sturdy and large support leg that is difficult to overturn is provided, and its weight is increased more than necessary to ensure stability during exercise.

At the same time, conventionally, since the hip and left and right thighs are seated and supported on a plate-shaped seat (one seat surface), the hip joint is moved in the horizontal and horizontal directions or in the vertical direction in this state. When the user performs these exercises, the left and right thighs move left and right or up and down while sliding on the (one) seating surface, so the degree of freedom of the body is impaired and the exercise is restricted. Has been. That is, the user holds the posture by supporting the buttocks and the left and right thighs on one or a single seat (see FIG. 69 of the above-mentioned Patent Document 2), and in this state, moves the thighs left and right or up and down. As a result, a sufficient exercise effect could not be obtained. This can be understood from the fact that, for example, even if only the right thigh is opened, the right thigh is moved together with the right thigh so that the exercise effect of the right hip joint is not obtained.
In this case, for example, in Patent Document 2 mentioned above, there is known one in which the left and right thighs are separated and supported, and the thigh support base can be individually moved. Since it is a mechanism which restrains a thigh with a fastener on a part support stand, use of a fastener is difficult only for a trained person, and an assistant is required. At the same time, only the thigh leg movement is supported and only limited movement is supported.

  As described above, in the conventional device that moves the hip joint while the user's left and right thighs are seated on the seating surface, the ankle or the foot portion is used to apply an appropriate load to the thigh opening leg movement or thigh vertical movement. It must be restrained to exert a load such as a spring or a hydraulic cylinder in the direction opposite to the movement, or the left and right knees or thighs must be restrained with a belt-like fastener or the like. However, if the load means is applied to the foot when trying to exert a load on the thigh movement, the load is transmitted from the ankle to the thigh through the lower limbs and knees. There are application problems for users with injuries. On the other hand, in the case of a fastener that restrains the thigh or knee, it is troublesome to attach and detach, and a training assistant is required for the elderly and the disabled.

In particular, exercise aids suitable for strength training of elderly people, rehabilitation after illness, etc. do not require an assistant and can be easily put on and taken off, and perform basic life exercises with natural movement without a sense of restraint. There is a need for a training device that can do this. At the same time, a small installation space, small size, light weight, and low cost have been demanded.
Therefore, the present inventor has devised a chair-type training device that assists basic daily exercise while sitting on a chair, and is capable of natural movement without a sense of restraint in a stable posture.

Therefore, the present invention stably holds the posture while sitting down and can easily perform basic life exercises such as thigh up / down, thigh open leg, and ankle up / down movement with natural movement. The main challenge is to provide a chair-type training device. Another object of the present invention is to provide a training apparatus that can perform a load exercise without restraining feeling without restraining the user's body (upper limbs and lower limbs) more than necessary.
Another object of the present invention is to provide a training apparatus capable of training basic life exercises such as walking and flexing and stretching for an elderly person with weak basic physical strength at a low cost with a simple structure.

To achieve the above object, the present invention employs the following configuration.
First, in order to achieve the first object, the present invention supports a user's body in a stable state while sitting on a stool, and in this state, the thigh is opened, the thigh is raised and / or stepped, and the ankle is raised and lowered. It is characterized by the fact that each movement of can be performed with natural movement. Therefore, a stool seat (10) for supporting the trainer's buttocks while sitting, a pair of left and right thigh seats (20) for supporting the left and right thighs connected to the buttocks independently, and the left and right soles A pair of left and right footrests (30) for placing and supporting the part is configured as follows.

  The footrest seat (30) is provided with an upper mounting member (37) so as to support the upper portion at the same time as the sole of the foot, and the footrest seat (30) and the thigh seat (20) are respectively left and right. It connects with the arm-shaped leg member (33). The pair of left and right thigh seats (20) are folded in a thigh vertical direction and a first knot (21) that can be bent in a thigh open leg direction on an appropriate frame (installation frame (50), etc.), respectively. A bendable second knot (22) and a third knot (34) that can be folded at the knees of the left and right arm-shaped leg members (33) are folded at the buttocks of the left and right footrests. A bendable fourth knuckle (35) is provided. Therefore, the thigh seat (20) and the footrest (30) connected by the arm-shaped leg member (33) are (1) rotating substantially horizontally around the first knuckle. Thigh open leg movement (2) Thigh up and down movement in the vertical direction about the second node part (3) Thigh up and down movement in the vertical direction about the fourth node part By doing so, the ankle up and down movement can be performed.

  Next, according to the present invention, each of the above motions is supported by supporting the left and right thighs in a stool shape without constraining the user's lower limbs with a fastening member or the like and attaching the feet (sole and instep) to a footwear. It is characterized by exerting exercise load. Therefore, as described above, the left and right thigh seats (20) and the footrest seat (30) that support the left and right thighs separated from the seat (10) are supported on the left and right arm-shaped leg members, respectively. At (33), the third knot (34) is provided and connected so that the knee can be bent. The upper mounting member (37) is provided on the footrest (30) so as to support the upper portion simultaneously with the sole. As a result, it is possible to exert a load on the user's body by the thigh vertical movement and the thigh open leg movement by the thigh seat (20) and the footrest (30) connected thereto. The equipment is very easy to install and can be loaded without feeling bound.

  Furthermore, the present invention provides the backrest support seat (40) for supporting the back of the trainer on the stool seat (10) or an appropriate frame, and the backrest support seat (40) has a back surface with respect to the stool seat (10). By providing the fifth knot portion (43) that can be bent in the direction, the user can further perform a back-stretching movement while sitting.

  Furthermore, the present invention is characterized by providing the training apparatus with a simple structure at a low cost. For this reason, the first knuckle (21) and the second knuckle (22) include a first rotation shaft (23) appropriately disposed on a frame (for example, the installation frame (50)) and the left and right thigh hanging seats ( 20), each of which is configured by a second rotating shaft (25), and one of the first rotating shaft (23) and the second rotating shaft (25) rotates in a substantially vertical direction and the other rotates in a substantially horizontal direction. Connect as possible. As a result, the left and right thigh seats (20) are supported by the device frame (50) so as to be rotatable about the first rotation shaft (23) and the second rotation shaft (25), respectively. A simple structure is provided by providing a first rotating shaft (23) on an apparatus frame (50) provided with leg members, and attaching a second rotating shaft (25) rotating in a direction orthogonal to the first rotating shaft (23). The thigh open leg and thigh up / down movement are possible.

  At the same time, the pair of left and right thigh seats (20) and the footrest (30) connected to the left and right thigh seats (30) are connected to the left and right rotation shafts (23) and (25), respectively. It is configured to be rotatable about the center, and the thigh open leg movement and thigh vertical movement can be performed independently on the left and right. Accordingly, even the user who is injured in the user's condition, for example, one of the left and right knees, can train the other leg.

  Moreover, the load exercise | movement in this invention is comprised as follows. The pair of left and right thighs seats (20) and footrests (30) connected by the arm-shaped leg members (33) include at least the first joint (21) and the second joint (22). A spring, a hydraulic cylinder and other load applying means (thigh load applying means (27) to be described later) for increasing the bending load are provided. The load applying means (27) applies the load in one direction of the forward operation or the backward operation of the bending operation of the first knuckle (21) and the second knuckle (22), or applies the load in both directions. Configure to grant.

  The first rotating shaft (23) and the second rotating shaft (25) are fitted with springs (Sp1, Sp2) for applying a rotational load, and the springs are elastic according to the rotation direction of the rotating shaft. By providing a load direction switching means (27x) for switching the direction of action of the generated force, the user selects, for example, whether to apply a load when the thigh is open leg movement or when a close direction movement is applied. Is possible.

  On the other hand, there is provided friction brake means (62) for applying a load to the rotational movement by the first rotary shaft (23) and the second rotary shaft (25), and this friction brake means is opposite to the forward rotation of the rotary shaft. A load can be applied to each of the reciprocating movements of the thigh open leg movement or the thigh vertical movement by applying a substantially equal friction load in the direction rotation.

  The pair of left and right thigh seats (20) and footrests (30) connected by the arm-shaped leg members (33) include the first node (21) and the second node (22). At least one of the third node (34) and the fourth node (35) is provided with driving means (M1, M2), and (1) the first node (21) is provided by the driving means (M1, M2). ) About the thigh open leg movement by rotating in the substantially horizontal direction, and (2) thigh up and down movement by rotating up and down in the substantially vertical direction about the second knot (22). (3) It is possible to forcibly operate at least one of the ankle up-and-down movements by pivoting up and down substantially in the vertical direction about the fourth knot portion (35).

  According to the present invention, a stool seat for supporting a user's buttocks and a thigh seat for placing and supporting the thigh are independently provided on the right and left sides appropriately, and left and right foot portions are provided on the left and right thigh seats. The footrests to be placed are connected by arm-shaped leg members, the thigh receiving seats are provided with a first knuckle section in the thigh open leg direction and a second knot section in the thigh vertical direction, Since the third node is provided with the fourth node on the buttocks of the footrest, the user can sit down and rotate the thigh by rotating in the horizontal direction about the first node. The leg motion is moved up and down in the vertical direction about the second knuckle and the thigh is moved up and down in the vertical direction around the fourth knuckle and the ankle up and down is moved up and down. Can be done. Therefore, it is possible to train the basic daily activities required for walking without difficulty.

In particular, the user's weight is supported by a stool, and the left and right thighs are supported by a thigh stool that has a knot that can be bent in the direction of movement (thigh up / down, thigh open leg). Can be held, and the thighs can move freely and naturally as compared with the case of being supported by a conventional single-structure seat.
In addition, since the footrest seat is connected to the left and right thigh seats by arm-shaped leg members that have bendable joints at the knees, the thigh up and down movement and the ankle up and down movement are relatively free. It can be done in the state.

  Furthermore, the present invention allows each of the above exercises to be performed by supporting the left and right thighs in a stool-like manner without constraining the user's lower limbs with a fastening member or the like and wearing the feet (sole and back) in a footwear shape. It becomes possible to exert a load. In other words, it is possible to apply the load of thigh vertical movement and thigh open leg movement to the user's body with the thigh seat that supports with the left and right thighs placed and the footrest seat connected to it. The equipment is very easy to install and can be loaded without feeling bound.

Similarly, the structure for that purpose is a simple structure by attaching the thigh seat for supporting the left and right thighs to the first rotating shaft appropriately disposed on the frame and the second rotating shaft in the direction orthogonal thereto. The thigh open leg and thigh up and down movement are possible at the same time, and at the same time, the thigh up and down movement can be performed only by connecting the thigh seat and the footrest with the arm-shaped leg member that can be bent to the knee. Ankle movement is also possible, and the device can be provided compactly with a simple structure.
In addition, the left and right thighs and the feet are supported by independent mechanisms, and various exercises are possible, for example, only one of the left and right lower limbs is exercised.

  The present invention will be described in detail below based on the preferred embodiments shown in the drawings. 1A and 1B are explanatory views of basic exercise in the training apparatus according to the present invention, FIG. 2 is an overall explanatory view of the training apparatus of the present invention, and FIGS. 3 to 6 are diagrams of a thigh seat. Structure explanatory drawing and FIG. 8 are structural explanatory drawings of a footrest.

[Explanation of basic exercise]
The present invention relates to a training apparatus A that trains a user (trainer; the same shall apply hereinafter) mainly by assisting basic movements of the lower limbs such as walking while sitting on a chair. First, the basic exercise will be described with reference to FIGS. 1A and 1B. The training apparatus A, which will be described later, is in a state where the user is sitting as shown in FIGS. 1A (a), (b), and 1B (c). The basic movement of the lower limbs required for walking is performed, or the basic movement of the upper limbs such as stretching the back is assisted as shown in FIG.

FIG. 1A (a) shows a “thigh vertical movement” in which the left and right thighs (k1) are supported in the vertical direction so that the left and right lower limbs move up and down alternately, and the knee (k2) and buttocks (k3). Assists in a flexible manner. At this time, the illustrated angle α of the left and right thighs k1 is assisted so that it can be set freely. This is because the illustrated angle α during the more natural thigh vertical movement varies among individuals.
FIG. 1A (b) shows a “thigh open leg exercise”, which assists the left and right thighs k1 to open and close in the opposite direction. At this time, only the one-side thigh can be moved by assisting only the one-side thigh so that it can be opened and closed. Further, it is preferable to support the knee portion k2 and the heel portion k3 so as to open and close at a free angle (β angle in the drawing) according to the individual body shape. This is because, for example, it is necessary to assist a user who has a disease in the knee so that the angle β at the time of opening the leg can be freely set.
FIG. 1B (c) shows “up and down movement of the ankle”, which assists the heel part so that it can be bent up and down. At this time, it is preferable that the opening angle (α in the figure) and the thigh inclination angle (β in the figure) of the thigh can be set at any angle according to the individual body shape.
FIG. 1B (d) shows “trunk exercise”, which supports the user's back so as to bend within a predetermined angle range. At this time, it is possible to obtain a wider range of motion body types by allowing the lower limbs such as the thighs to be set at a free angle.

[Basic equipment configuration]
The above-described training apparatus A for assisting basic daily exercise includes a stool seat 10 that holds a posture while a user is seated, and an installation frame (hereinafter referred to as an installation frame) 50 that installs and holds the stool seat 10. And the seat (back-up member of an exercise | movement) which hold | maintains each part of a user's body in order to assist each above-mentioned exercise | movement is provided. The illustrated one includes a thigh seat 20 that supports the left and right thighs, and a footrest seat 30 that supports the left and right feet. The thigh seat 20 is configured to be separated into a right thigh seat 20a and a left thigh seat 20b, and is attached to the installation frame 50 or the seat 10. The footrest seat 30 is provided separately to the right footrest seat 30a and the left footrest seat 30b, and the right footrest seat 30a is connected and supported to the right thigh seat 20a by a right arm-shaped leg member 33a. Similarly, the left footrest 30b is connected and supported to the left thigh seat 20b by a left arm leg member 33b. A back support support seat 40 that supports the back of the user sitting on the seat 10 is attached to the seat 10 or the installation frame 50.

  Each of the seats is configured to support the user's upper and lower limbs when the user performs the basic exercise described above. In other words, it is composed of mechanical strength that supports the weight of each part of the body and at the same time supports the reaction force during exercise (for example, kick force), and these forces are supported by the installation frame 50 so as not to fall over. Is done. The configuration of each seat will be described below.

[Configuration of installation frame and seat]
The installation frame 50 includes an installation leg 51 and a main body stem 52 that supports each seat. The illustrated installation leg 51 is formed of four legs 51a, 51b, 51c, 51d in four directions, and can be stably installed on a floor or the like. This installation leg 51 may be three legs or five legs, and various configurations such as casters (wheels) or a folding structure are possible in consideration of the movement of the apparatus. One or a plurality of main body stems 52 are fixed to the installation legs 51, and the height of the seat 10 is set by the main body stems 52. The illustrated main body stem 52 is composed of two support columns 52a and 52b, and a mounting seat 52c is fixed between the support columns. The seat 10 is fixed to the mounting seat 52c. The seat 10 has a shape in which the user's buttocks are placed, and in particular, a shape in which the tail bone is placed, and a pad such as a sponge is appropriately incorporated. The installation frame 50 and the seat 10 have the same configuration as that of a normal chair, and are configured in an appropriate chair shape such as a sofa shape according to the apparatus specification or design.

[Configuration of thigh seat]
The body stem 52 is attached with a thigh seat 20 for placing and supporting the left and right thighs that are continuous with the user's buttocks. The thigh seat 20 is configured to be divided into a right thigh seat 20a and a left thigh seat 20b so as to support the left and right thighs independently.
Since the left and right thigh seats 20a and 20b have the same structure, one of them will be described below. The structure of the right thigh seat is denoted by a and the left thigh seat is denoted by b.

  Therefore, the left and right thigh seats 20a and 20b have a first knuckle 21 that can be bent (turned) in the thigh open leg direction and a second knuckle 22 that can be bent (turned) in the thigh vertical direction. Prepare. For this reason, a right rotating shaft 23a and a left rotating shaft 23b as shown in FIG. 4 are vertically arranged in the columns 52a and 52b constituting the main body stem 52, and these left and right rotating shafts (hereinafter referred to as first rotating shafts). 23), an open leg lever 24 is supported by a swingable bearing. Accordingly, the main body stem 52 is provided with first rotary shafts 23 in the substantially vertical direction on the left and right support columns 52a and 52b, respectively, and the left and right leg opening levers 24 can swing on the first rotary shaft 23 in a substantially horizontal plane. (In the direction of arrow a; see FIG. 6). A reinforcing plate 24x is fixed to the leg opening lever 24, and a second rotating shaft 25 is fixedly supported on the reinforcing plate 24x, and a seat mounting frame 26 is mounted on the second rotating shaft 25 in the vertical direction of the leg (b direction). It is supported by the shaft so that it can swing freely. The right thigh seat 20a is attached to the right seat mounting frame 26a and the left thigh seat 20b is attached to the left seat mounting frame 26b.

  Accordingly, the pair of left and right thigh seats 20a and 20b are separately attached to the main body stem 52 and can be rotated in the thigh opening direction around the first rotation shaft 23. The shaft 23 constitutes the first knuckle section 21. The thigh seat 20 is rotatable in the thigh vertical direction about a second rotation shaft 25 connected to the first rotation shaft 23 via an opening leg 24, and the second rotation shaft 25 is A second knot portion 22 is configured. The first and second rotary shafts 23 and 25 are equipped with thigh load applying means 27 described later, and apply a motion load in the thigh opening direction and a motion load in the thigh vertical direction.

[Composition of footrest]
The footrest 30 has the same structure so that the left and right feet are independently supported by the sole support plate 31, and the right side is denoted by a and the left side is denoted by b. To do. Accordingly, the sole support plate 31 is provided with an upper mounting member 37 shown in FIG. 2 so as to cover the upper part of the upper part of the user's foot. This is because a load is exerted on the entire lower limbs when performing a load exercise, which will be described later, particularly when raising the foot upward. Accordingly, the upper mounting member 37 is not limited to the footwear shape (slipper shape) shown in the figure, and may be a fastening band shape or a rod shape that sandwiches and supports the upper portion with the sole support plate 31.

  The footrest 30 configured as described above is connected to the left and right thigh seats 20 by arm-shaped leg members 33. The illustrated arm-shaped leg member 33 is composed of a pair of arms 33x and 33y spaced apart from each other, and the base ends thereof are connected to the thigh seats 20a and 20b by connecting pins 33p. The connecting pin 33p connects the arm-shaped leg member 33 so that it can be bent at the knee, and the connecting pin 33p (hereinafter referred to as a third rotating shaft) constitutes the third joint 34. That is, the upper arms and the lower arms of the arms 33x and 33y are rotatably connected by the connecting pin 33p (third rotation shaft).

Note that the illustrated footrest 30 is connected to the left and right thigh seats 20 by arm-shaped leg members 33. The arm-shaped leg members 33 are connected to the installation frame 50 to connect the thigh seats. 20 may be configured to be interlocked with the thigh seat 20 as long as it is substantially connected.
The arms 33x and 33y are connected by a connecting arm 33z (hereinafter referred to as a fourth rotating shaft) at the lower end, and the sole support plate 31 swings at the shaft fitting portion 31x to the connecting arm (fourth rotating shaft) 33z. The shaft is freely fixed. Accordingly, the connecting arm (fourth rotation shaft) 33z constitutes the fourth knot portion 35. The connecting arm (fourth rotating shaft) 33z is provided with foot load applying means 36 described later. The arms 33x and 33y shown in the drawing are both configured to be extendable and retractable so that the length thereof can be adjusted according to the body shape of the user. Although the structure is not shown, for example, the arms 33x and 33y may be constituted by two upper and lower pipe members fitted to each other, and the length of both of them may be adjusted by a screw thread portion.

  Therefore, the footrest 30 is configured to be separated from the left and right. That is, the right leg rest seat 30a is connected to the right thigh seat 20a by the right arm leg member 33a, and the left leg rest seat 30b is similarly connected to the left thigh seat 20b by the left arm leg member 33b. Yes. Then, the third node portions 34a and 34b are formed at the knee portion, and the fourth node portions 35a and 35b are formed at the hip portion.

[Configuration of back support seat]
The back support seat 40 is attached to the installation frame 50 as follows. The installation frame 50 is provided with a fifth rotary shaft 41 in the horizontal direction, and a back support plate 42 is supported on the fifth rotary shaft 41, and a back support support seat in which an elastic pad is built in the back support plate 42. 40 is attached. Accordingly, the back support seat 40 is rotatable about the fifth rotation shaft 41 in the back direction (the direction of arrow d; see FIG. 2), and the fifth rotation shaft 41 constitutes the fifth joint 43. The fifth rotating shaft 41 is equipped with back load applying means 46 described later. The backrest support seat 40 is locked by a stopper (not shown) so as not to rotate more than a predetermined angle. A handle 44 shown in the figure is provided with a right handle 44a and a left handle 44b. The installation frame 50 is provided with armrests 45a and 45b on the left and right sides of the seat 10 so that the user can support the exercise by touching the left and right arms during exercise.

[Configuration of load applying means]
With the configuration described above, the basic movements of FIGS. 1A and 1B are performed. At this time, the left and right thigh seats 20a and 20b and the footrest seats 30a and 30b are connected to the above-described nodes (first to fifth nodes). Part) is given a moderate load. Accordingly, natural exercise is possible in this state, and the user can perform exercises such as thigh open legs and thigh up and down according to the locus on which the heel is drawn. However, in order to train muscle strength, it is necessary to further apply an appropriate load. Various embodiments of the load applying mechanism will be described.

  First, the load application function is the basic movement forward operation, such as when applying a load when opening and lowering a leg, and when performing a reverse operation such as when closing a leg or when raising a foot, and when applying a load in both reciprocating directions. Are possible. The above-described apparatus shown in FIG. 2 is equipped with the thigh load applying means 27 provided with the load direction switching means 27x for switching either the forward movement or the backward movement to the first knuckle section 21 and the second knot section 22. The fourth knot part 35 and the fifth knot part 43 are equipped with foot load applying means 36 and back load applying means 46 for applying a load in one direction.

  First, the thigh load applying means 27 will be described. The urging spring Sp1 is attached to the first rotating shaft 23 constituting the first knuckle section 21 and the second rotating shaft 25 constituting the second knuckle section 22 is attached. A force spring Sp2 is fitted. Since both the urging springs have the same structure, both will be described with reference to FIG.

[Configuration of thigh load applying means]
The rotary shaft X (the first rotary shaft 23 and the second rotary shaft 25) is fitted with a biasing spring Sp made of a coil spring, and the base end 68x and the tip 68y of the spring are configured as shown in FIG. . That is, a rotatable spring cover 68h is fitted to the rotation axis X, and the second spring base end 68z is fixed (welded or the like) to the spring cover 68h. A spring base end 68x is latched and fixed to the spring cover 68h. Accordingly, when the second spring base end 68z is rotated in the direction of the arrow c in FIG. 5C, the spring base end 68x is also rotated integrally. The other spring tip 68y is arranged to face the second spring base end 68z with a distance therebetween. The thigh seats 20a and 20b are engaged with each other between the opposing second spring base end 68z and the spring front end 68y in a state where an initial tension is applied. 20x in the drawing is the engaging portion. The reason why the biasing spring Sp is connected to the engaging portion 20x so as to apply the initial tension is to allow the load to act at the initial stage of the exercise (when the thigh up and down and the thigh open leg starts to move). In this case, as shown in FIG. 6D, the engagement state (initial tension adjustment) between the engagement portion 20x and the spring Sp can be adjusted with a screw 20y or the like. A chain line in the figure indicates a spring end portion where no initial tension is applied.

  On the other hand, the first stopper pin 69A and the second stopper pin 69B are fixed to the swing lever 71, and the swing lever 71 is fixed to the installation frame 50. By swinging the swing lever 71, the first stopper pin 69A engages with the spring tip 68y, and the second stopper pin 69B engages with the second spring base end 68z in a contradictory manner. Further, at the midpoint of the swing lever 71, the first and second stopper pins 69A and 69B are set so as not to engage with the spring ends. Therefore, by swinging the swing lever 71 with the operation lever 27x, the urging spring Sp is in the free state and when the load is applied in the direction b of the arrow in FIG. It can be switched when a load is applied in the direction.

  Therefore, the operation lever 27x and the swing lever 71 constitute load direction switching means. Explaining each state, in the state of FIG. 5B, the second stopper pin 69B is engaged with the second spring base end 68z, and a load acts in the direction of arrow b. Therefore, when the thigh hanging seats 20a and 20b are moved up and down the thigh, a load is applied when the thigh is moved downward, and a load is applied in the leg opening direction when the thigh is opened. Next, in the state shown in FIG. 5C, the first stopper pin 69A is engaged with the spring tip 68y, and a load acts in the direction of the arrow c. Therefore, in the case where the thigh hanging seats 20a and 20b are in the thigh vertical movement, a load is applied when the thigh is moved upward, and in the case of the thigh open leg movement, the load is applied in the closed leg direction.

[Lock mechanism]
Further, the operation lever 27x can be provided with a lock function for locking the rotary shaft X. By providing this lock mechanism, the thigh seat 20 can be fixed at a predetermined angle (the α angle) position. For example, the ankle can be moved up and down while the thigh seat 20 is fixed at a predetermined angular position during the ankle movement.

[Weight correction spring]
In addition, weight correction springs 70a and 70b are attached to the left and right second rotating shafts 25a and 25b, respectively. One end of each of the weight correction springs 70a and 70b is fixed to the installation frame 50 side, and its free end is set to the left and right. It is engaged with the thigh seats 20a and 20b and always urges the thigh seats upward. Therefore, the weight applied to the user's thigh is absorbed by the weight correction spring. In the illustrated example, the spring force is set in advance, but this may be configured to adjust the spring strength in accordance with individual differences among users.

[Configuration of foot load applying means]
Next, the foot load applying means 36 will be described. As shown in FIG. 8A, a bracket 33w is provided on the fourth rotating shaft (connecting arm) 33z constituting the fourth knot portion 35. A base end portion of an urging spring Sp3 fitted to the bracket on the fourth rotating shaft 33z is locked (illustrated as a stopper). Between the base ends 38x and 38y of the spring Sp3, a spring engaging portion 38z of the sole support plate 31 supported by the fourth rotating shaft 33z is latched. Accordingly, as shown in FIG. 5B, the spring force acts both when the plate 31 moves in the direction of arrow a (ankle raising movement) and when it moves in the direction of arrow b (ankle lowering movement). Thus, a load is applied. Therefore, the user can perform a load exercise when moving the sole support plate 31 up and down with the hip joint up or down. In the figure, the load exerted on the sole plate 31 is set to be constant by the urging spring Sp3, but this load can be adjusted in magnitude as will be described later.

[Configuration of back load applying means]
Similarly, a back load applying means 46 is disposed on the rotating shaft 41 in the back support seat 40 supported by the fifth rotating shaft 41. This is shown in FIG. 9, and a biasing spring Sp <b> 4 is fitted on the rotating shaft 41. The base end portion of the spring is fixed to the installation frame 50 side, and the free end side thereof is elastically fixed to the back plate 42. 47S in the figure shows a stopper on the frame 50 side, and 47h shows a spring engaging part on the back support seat 40 side. The spring Sp4 always urges the back support plate 42 in the direction of the arrow (the back support standing direction). Therefore, it is possible to apply a load to the user by the spring Sp4 during the trunk movement in which the back support seat 40 is pushed down backward about the rotation shaft 41. In the illustrated example, the load exerted on the back plate 42 is set to be constant by the urging spring Sp4, but this load can be adjusted in magnitude as will be described later.

  In the present invention, the back load applying means 43 of the back support support seat 40 and the foot load applying means 36 of the footrest seat 30 are configured so that the load acts only in one direction of movement. Needless to say, the load may be selectively applied in both directions of the exercise similarly to the load applying means 27. Moreover, although each load provision means demonstrated the case where a coil spring was used, this may use a hydraulic cylinder, for example.

[Different embodiments of load applying means]
Each load applying means described above can apply loads in both directions of movement by configuring as follows. As shown in FIG. 10, a rotating member 61 (the first leg opening lever 24 and the seat mounting frame 26 described above) is rotatably fitted to the rotating shaft 60 (the first, second, fourth and fifth rotating shafts described above). A pulley 67 at the center of the rotating shaft 60 is provided on the lower arm of the arms 33x and 33y and the shaft fitting portion 31x of the sole support plate 31). The pulley 67 is fixed to the rotating member 61, and the brake band 62 (friction brake means) is wound around the pulley 67, and its end is pulled and fixed to the installation frame 50. In this case, when the band 62 is formed of a heat-resistant and wear-resistant high-friction member, the rotating member 61 is rotated about the rotation shaft 60 in the clockwise direction or is rotated in the counterclockwise direction. Will reach. A tension spring 63 and a tension adjusting screw 64 are provided between the brake band 62 and the installation frame 50. As a result, the load on the rotating member 61 can be adjusted. Therefore, the user can set the load corresponding to the individual physical fitness level to the basic life exercise described with reference to FIGS. 1A and 1B.

[Driving means]
As shown in FIG. 11, by providing a driving means on the rotary shaft 65 (the first, second, fourth, and fifth rotary shafts described above), the motions shown in FIGS. 1A and 1B can be forcibly performed. For example, driving means such as a pulse motor M is connected to the first rotating shaft 23 and the second rotating shaft 25 (illustrated as the rotating shaft 65 in FIG. 9), and the rotating shaft is rotated forward and backward within a predetermined angle range. Configure. This angle control may be performed by, for example, a DC motor and an encoder (not shown). When the left and right first rotary shafts 23a and 23b are rotated forward and backward within a predetermined angle range by the driving means M1, the thigh hanging seats 20a and 20b reciprocate in the direction of the arrow a in the figure to force the thigh open leg movement. Similarly, when the left and right second rotary shafts 25 are rotated forward and backward within a predetermined angle range by the driving means M2, the thigh hanging seats 20a and 20b can reciprocate in the direction of the arrow b in the figure to force the thigh vertical movement.

[Description of operation]
The present invention can perform the basic life exercise described in FIGS. 1A and 1B in the above-described configuration. In particular, the above-described thigh seats 20a and 20b have a first node 21 (first rotation shaft 23) and a second node 22 (second rotation shaft 25) in a direction substantially perpendicular to each other in a vertical direction and a horizontal direction. Because it is equipped, exercise according to the body shape of the user is possible. For example, the user can freely set the angle α (see FIG. 1A) during the thigh vertical movement, and can freely set the thigh vertical movement with an open leg and the thigh vertical movement with a closed leg. . That is, the angle α can be set by rotating the thigh seat 20 in the horizontal direction around the first rotation shaft 23.

  Similarly, in the case of the thigh leg movement, the knee can be opened with the third node 34 extending the angle β (see FIG. 1A), or the knee can be opened with the knee folded. It is possible to exercise by setting. That is, the knee bending angle can be freely set by rotating the footrest 30 in the vertical direction about the third rotation shaft 33p of the third knot 34.

The aspect of the exercise | movement assisted by the training apparatus concerning this invention is shown, (a) shows thigh up-and-down exercises, such as thigh up-and-down exercises, and (b) shows thigh open leg exercises. The aspect of the exercise | movement assisted by the training apparatus concerning this invention is shown, (c) shows an ankle up-and-down exercise | movement, (d) shows upper body flexion exercise | movements, such as trunk exercise | movement. The perspective view which shows the whole structure of the chair type training apparatus A concerning this invention. Explanatory drawing which shows the structure of the seat and installation frame in the apparatus of FIG. Explanatory drawing which shows the structure of the thigh hanging seat in the apparatus of FIG. Explanatory drawing which shows the structure of the footrest seat and arm-shaped leg member in the apparatus of FIG. Explanatory drawing which shows the structure of the thigh part load provision means in the apparatus of FIG. (A) thru | or (d) The structural drawing of the load provision means in the apparatus concerning this invention is shown. (A) is explanatory drawing which shows the structure of the foot | leg part load provision means in the apparatus of FIG. 2, (b) is a principal part enlarged view. (A) is explanatory drawing which shows the structure of the back part load provision means in the apparatus of FIG. 2, (b) is a principal part enlarged view. The conceptual diagram which shows the structure of the load provision means different from the apparatus of FIG. The conceptual diagram which shows the structure in the case of equip | installing a drive means with the apparatus of FIG.

Explanation of symbols

A Training device k1 Left and right thigh k2 Knee k3 Hip 10 Seat 20 Seat thigh 20a Right thigh seat 20b Left thigh seat 23 First rotation axis (first knuckle 21)
23a Right rotation shaft 23b Left rotation shaft 24 Opening lever 24x Reinforcement plate 25 Second rotation shaft (second joint portion 22)
25a Right arm-shaped leg member 25b Left arm-shaped leg member 26 Seat mounting frame 27 Thigh load applying means 27x Load direction switching means 30 Footrest seat 30a Right footrest seat 30b Left footrest seat 31 Foot support plate 31x Shaft fitting portion 33 Arm-shaped leg member 33a Right arm-shaped leg member 33b Left arm-shaped leg member 33x, 33y A pair of arms 33p Connecting pin (third rotating shaft) (third knot 34)
33z Connecting arm (fourth rotating shaft) (fourth knuckle section 35)
33w Bracket 36 Foot load applying means 37 Upper mounting member 40 Back support seat 41 Fifth rotating shaft (fifth joint 43)
42 Back plate 46 Back load applying means 50 Installation frame (installation frame)
51 Installation legs 51a to 51d Leg 52 Main body stem 52a, 52b Post 52c Mounting seat 60 Rotating shaft 61 Rotating member 62 Brake band 63 Tension spring 64 Adjustment screw 65 Rotating shaft 67 Pulley 69A First stopper pin 69B Second stopper pin 71 Oscillation Lever M1, M2 Driving means Sp1, Sp2, Sp3, Sp4 Energizing spring

Claims (9)

A chair-type training device that supports a bending exercise of a lower limb or an upper limb while supporting a training person in a sitting state,
A stool that supports the buttocks while sitting,
A pair of left and right thigh seats that support the left and right thighs that are connected to the buttocks independently;
A pair of left and right footrests for placing and supporting the left and right foot soles;
With
The footrest is provided with an upper mounting member to support the upper at the same time as the sole,
The footrest seat and the thigh hanging seat are connected so that their left and right are interlocked with arm-shaped leg members,
The pair of left and right thigh seats are attached to the frame so as to have a first knuckle that can be bent in the thigh open leg direction and a second knuckle that can be bent in the thigh vertical direction. ,
The left and right arm-shaped leg members are provided with a third knuckle that can be bent at the knee, and the left and right footrests are provided with a fourth knot that can be bent at the buttocks,
The thigh seat and the footrest connected so as to interlock with the arm-shaped leg member,
(1) The thigh open leg movement is performed by rotating in a substantially horizontal direction around the first knot.
(2) The upper and lower thighs are moved vertically up and down about the second knuckle portion,
(3) The ankle up-and-down movement is performed by rotating up and down substantially in the up-and-down direction around the fourth knot.
A chair-type training device that is configured to be capable of each. A backrest support seat that supports the back of the trainer is provided on the seat or the appropriate frame,
The backrest support seat has a fifth section that can be bent in the back direction with respect to the seat.
The chair-type training device according to claim 1, wherein a back extension movement is possible by rotating the back support support seat around the fifth joint. The first knuckle section and the second knuckle section are configured with a first rotating shaft appropriately disposed on the frame and a second rotating shaft disposed on the thigh hanging seat,
The first rotating shaft and the second rotating shaft are connected so that one of them can rotate in a substantially vertical direction and the other can rotate in a substantially horizontal direction, and the left and right thigh seats are connected to the first rotating shaft and the second rotating shaft. The chair type training device according to claim 1 or 2, wherein the chair type training device is supported by a frame so as to be rotatable about an axis. The pair of left and right thigh seats and the footrests connected so as to be interlocked with the left and right thigh seats are configured to be rotatable about the first rotation shaft and the second rotation shaft, respectively. The chair type training device according to claim 3, wherein the thigh opening leg movement and the thigh vertical movement are possible. The pair of left and right thigh seats and footrests connected by the arm-shaped leg members have at least a spring, a hydraulic cylinder, and other loads applied to increase the bending load of the first and second joints. Means are provided,
The load applying means is set so as to apply a load in one direction of the forward operation or the backward operation of the bending operation of the first knuckle and the second knuckle or to apply a load in both directions. The chair type training apparatus according to any one of claims 1 to 4, wherein The first rotation shaft and / or the second rotation shaft is fitted with a spring for applying a rotational load,
6. The chair type training apparatus according to claim 5, wherein the spring is provided with a load direction switching means for switching an acting direction of the elastic force in accordance with a rotating direction of the rotating shaft. The first rotation shaft and / or the second rotation shaft is fitted with a spring for applying a rotational load,
This spring is engaged so as to generate an elastic force between the stopper means provided on the frame as appropriate and the thigh seat.
The stopper means is engaged with the stopper means detachably with respect to the first rotating shaft and / or the second rotating shaft,
7. The chair type training apparatus according to claim 6, wherein the stopper means is controlled to be engaged and disengaged by a load direction switching means comprising an operation handle. Friction brake means for applying a rotational load to the rotational movement of the first rotation shaft and the second rotation shaft center is provided,
6. The chair type training apparatus according to claim 5, wherein the friction brake means applies a friction load substantially equal between the forward rotation and the reverse rotation of the rotating shaft. The pair of left and right thigh seats and footrests connected to be interlocked by the arm-shaped leg members are at least one of the first node, the second node, the third node, and the fourth node. One is provided with a driving means, and (1) thigh opening leg movement by rotating substantially horizontally in the horizontal direction around the first knot, and (2) centering on the second knot. Up and down movement of the thigh by rotating up and down substantially vertically, (3) At least one of the up and down movement of the ankle is forcibly executed by rotating up and down about the fourth knot. The chair type training apparatus according to any one of claims 1 to 8, wherein the chair type training apparatus is provided.

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