JPH08336616A - Hand finger training tool - Google Patents

Abstract

PURPOSE: To provide a hand finger training tool which can appropriately be used in the wide range and is small-sized, light-weight, simple, and inexpensive. CONSTITUTION: This hand finger training tool is constituted of an elastic lump body where the first region R1 for putting on the forefinger, the second region R2 for putting on the middle finger, the third region R3 for putting on the third finger, and the forth region R4 for putting on the little finger are continuously arranged in the longitudinal direction. Recessed parts 11-14 for guiding respective fingers are provided in the front face side of the respective regions R1 -R4 . The volumes of the respective regions R1 -R4 are so set that the region where the finger having larger bending force quantity is put on becomes larger. A resin foam body and a rubber from body can be illustrated as an elastic lump body. It is preferable that the elastic lump body is set to a double structure of an outer side structure part 1 and an inner structure part 2. It is preferable that respective structure parts 1, 2 can be changed to ones having different hardness.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a finger training device (hereinafter referred to as "device"). More specifically, the present invention relates to a device that can be suitably used in a wide range of applications such as various rehabilitation of fingers, not limited to strengthening / enhancing grip strength.

[0002]

2. Description of the Related Art Instruments intended for strengthening grip strength, recovering finger functions, etc. can be broadly classified into full-fledged physical strength enhancement equipment, equipment associated with rehabilitation equipment, etc., and equipment used alone. . Of these, the former is mainly
Public gyms, rehabilitation centers, etc.
Used in private facilities. On the other hand, since the latter device is generally small and simple, it can be used for household use, portable use, personal use, etc. And, as the latter, a laver type instrument (Shokai 60-97152, Sho 61-94054, Sho 62-1)
1640 and the like) and an elastic material such as a resin foam or a rubber molded body (Shokai Sho 61-142068).
Gazette) is known.

This lever-type instrument is provided with a pair of levers that are biased by predetermined springs in the direction of increasing the distance between them. Then, the user grips the pair of levers and repeats the operation of bringing the pair of levers close to each other while countering the biasing force of the spring, thereby strengthening the grip force, training, and the like. On the other hand, an instrument made of an elastic material is intended to enhance the grip force by utilizing the elasticity of the material. In other words, while countering the repulsive force that the user receives from the material,
By repeating the action of grasping the material, the grip strength is strengthened. In addition, this type of device is generally smaller, simpler, and cheaper to manufacture than the Laver-type device.

[0004]

By the way, in rehabilitation intended to recover the functions of the fingers and the like, in addition to the case of targeting the entire five fingers, a specific finger selected from the five fingers (for example, In some cases, one finger or two fingers) are targeted. However, in the above-mentioned "lever-type device", even if only a specific finger is targeted, the four fingers of the index finger, the middle finger, the ring finger, and the little finger (hereinafter simply referred to as "four fingers") are provided on one of the pair of levers. ) And the thumb on the other side of the pair of levers. This type of device is usually designed to be used with exertion of force on the entire five fingers, and it is often difficult to handle it with only the force of the thumb and a specific finger intended to restore function. Because.

As a result, in this type of rehabilitation, it is necessary to handle the device with all five fingers, placing weight on the particular finger of interest and keeping in mind not to rely on other healthy fingers as much as possible. Absent. However,
The strength of a specific finger intended for functional recovery is inferior to the strength of other healthy fingers, so that the healthy finger eventually becomes the protagonist of the movement, and rehabilitation of the specific finger is performed. Difficult to do effectively.

On the other hand, in this "lever-type device", several kinds of springs having different urging forces are selectively used, or the urging force of the spring can be adjusted by operating a predetermined adjusting mechanism. Can also be seen (see Japanese Utility Model Publication No. 60-97152, Japanese Utility Model Publication No. 61-94054, etc.). If the "adjustment of biasing force" is appropriately performed, it is considered that the device can be smoothly handled even with only a specific finger.

However, this "adjustment of biasing force" is
Usually, the purpose is only to correct this individual difference in units of individual differences in grip strength generated from all five fingers. Assuming that this difference in grip strength can be corrected,
Even when only one finger is hung on one of the pair of levers,
In order to make it a device that can be handled even when all four fingers are applied, it is necessary to further increase the types and numbers of springs used alternatively and to make the adjustment mechanism more complicated. As a result,
It is thought that this is because the manufacturing cost of the device increases, the structure becomes complicated, and the “adjustment of biasing force” is troublesome, which may make the device difficult to use. Therefore, even if this “adjustment of biasing force” is performed, it is difficult to effectively perform the “rehabilitation for a specific finger” by the “lever-type device”.

On the other hand, in the above "apparatus made of elastic material", the repulsive force applied to each finger of the user is the hardness (repulsion coefficient) of the elastic material and the volume of the portion pressed by each finger. Determined from For example, if the elastic material can be accurately pressed by the entire five fingers or the entire four fingers, the elastic material is largely compressed and deformed, and the repulsive force corresponding to this deformation amount is applied to the entire five fingers or the entire four fingers. On the other hand, if the elastic material can be pressed accurately with the particular finger as the main body, the amount of deformation of the elastic material will be small, and therefore the repulsive force is considered to be within a range that can be dealt with only by the specific finger.

However, most of the conventional instruments of this type are made of an elastic material (columnar shape or the like) having a substantially constant cross section (see Japanese Utility Model Laid-Open No. 61-142068). For this reason, it is often difficult to press accurately with a specific finger as a main body while the device is completely grasped. Therefore, it is often necessary to take measures such as appropriately floating another healthy finger from the elastic material, which is inconvenient. Further, even when the elastic material is pressed accurately with the specific finger as the main body, it is often impossible to obtain the repulsive force from the elastic material according to the force of the specific finger. This is because, for example, when the finger is pressed with a large force (index finger or the like), the elastic material may be in a bottomed state before the pressing force from the finger is completely applied. As described above, in the conventional device, the above-mentioned “rehabilitation for a specific finger” is performed.
It is often difficult to perform accurately and reliably.

The present invention has been made in view of the above point of view, and an object of the present invention is to provide an instrument which can be accurately used in a wide variety of applications, is small, lightweight, simple, and inexpensive.

[0011]

A device according to the first aspect of the present invention includes a first area portion on which an index finger can be hung, a second area portion on which a middle finger can be hung, a third area portion on which a ring finger can be hung, and a little finger. And a fourth region part which is continuously arranged in the longitudinal direction, and is an instrument provided with a concave part for guiding each of the fingers on the surface side of each region part. It is characterized in that the volume of the portion is increased in the region portion where a finger having a large bending force can be applied. The “bending force amount” means the pressing force applied by each finger to the object when the five fingers functioning soundly grasp an arbitrary specific object.
That is, each of the five fingers of the grip strength has its own function,
The power of each finger that plays a role.

The outer shape of the "elastic block" can be variously selected within the scope of the present invention. Further, its size, hardness (coefficient of restitution), etc. can be variously selected according to the layer of the user for infants, children, adults, etc. Further, it is preferable that the arrangement intervals, depths, lengths and the like of the respective “recesses” are determined within a range in which each of the four fingers can be naturally applied. Further, the arrangement interval, the depth, etc. can be variously selected according to the application of the instrument, the layer of the user, and the like. In the second aspect of the present invention, the elastic block is made of a predetermined resin foam or rubber molding. Examples of the resin foam include polyurethane foam, polyethylene foam, polypropylene foam and the like. Examples of the rubber molded body include EPDM, NBR, and SBR molded bodies.

In the third aspect of the present invention, the elastic block is composed of an outer structure portion arranged on the outside and an inner structure portion arranged on the inner side, and the outer structure portion and the inner structure portion are hardened. But different. That is, the elastic block has a double structure. The fourth aspect of the present invention shows a specific example of the third aspect of the present invention, in which the outer structural portion is made of a flexible polyurethane foam and the inner structural portion is made of a polyethylene foam.

According to the fifth aspect of the present invention, there is provided at least one other inner structural portion which is replaceable with the inner structural portion and has a hardness different from that of the inner structural portion. That is, the most appropriate inner structure portion can be selected from several kinds of inner structure portions having different hardness according to the layer of the user, the ability of the user, and the like. Further, in the sixth aspect of the present invention, one or more other outer structure portion that is replaceable with the outer structure portion and is different from the outer structure portion in at least one of hardness and outer shape is provided. That is, the most appropriate outer structure portion can be selected from several kinds of outer structure portions having different hardness and the like.

The significance of the fifth and sixth inventions will be described in more detail below. As described above, in the conventional "lever-type device", the "spring biasing force" is mechanically adjusted to adapt to individual differences in ability. On the other hand, the device according to the first aspect of the present invention is often made of integrally molded resin foam or the like, and therefore a mechanism for mechanically adjusting the repulsive force is built into the resin foam or the like. It's not easy to do. Further, by intentionally incorporating a mechanism of this type, the advantages of the device such as small size, light weight, and simplicity will be diminished. The fifth and sixth inventions have great significance in that they can quickly and easily adapt to individual differences in ability and the like by a simple method of appropriately replacing each structural part.

In the seventh aspect of the present invention, the elastic block body is provided with a counting means for counting the number of times each area is pressed and a display means for displaying the number of times.
The present invention mainly aims to promote the user's motivation for training. In the eighth aspect of the present invention, the counting means is arranged in a strip shape along the longitudinal direction inside the elastic block. According to the present invention, the elastic mass is 4
Regardless of which one of the fingers is pressed, the number of times of pressing can be reliably and accurately counted and displayed.

[0017]

In the device of each of the above inventions, the four fingers are formed of an elastic block in which the respective regions to be hung are continuously arranged in the longitudinal direction. Then, the surface side of each area portion is provided with a concave portion for guiding each of the four fingers. Therefore, the respective places where the four fingers fit are uniquely determined, which is convenient. Even when rehabilitation of a specific finger is performed, if the specific finger is bent while the elastic block is grasped by four or five fingers, the corresponding region portion becomes the center and is compressed and deformed. Further, in the case of performing rehabilitation of four fingers, strengthening grip strength, etc., the entire area is centered and compression deformation occurs. In addition to this, the volume of each region is increased or decreased according to the amount of bending force applied to each region. For example, the volume of the fourth area portion on which the little finger having a small force is applied is small, and the volume of the first area portion on which the middle finger having a large ability is applied is large. As a result, when each finger presses each area, the repulsive force (load) received from each area corresponds to the strength of each finger.
Therefore, the device of each of the above inventions can be appropriately used for various purposes such as strengthening grip strength and various rehabilitation.

In the third aspect of the present invention, the elastic block is composed of an outer structure portion arranged on the outside and an inner structure portion arranged on the inner side. Moreover, the hardness of the outer structure and the inner structure is different. Therefore, if the hardness of each structural portion, the volume ratio of each structural portion, and the like are variously selected, it is possible to accurately control the repulsive force generated in the elastic lump, and thus in each area portion.

In the fifth aspect of the present invention, two or more inner structural parts having different hardness are provided. That is, the device is configured as a set article including one outer structure part and several inner structure parts having different hardness. Therefore, the difference in ability of the user,
Depending on the layer of the user, it can be selectively used as a device having the most suitable repulsive force. In addition, since the selective use is possible only by replacing the inner structure portion in this manner, the structure of the instrument is not complicated and the handling is not significant, which is of great significance.

According to the sixth aspect of the present invention, two or more outer structure portions having different hardness are provided. Therefore, it is possible to more accurately and surely deal with the difference in ability between users. Also, since it is possible to select the outer shape of the outer structure, increase the outer shape of the device and use it for adults,
The size of the device can be reduced, and it can be used quickly for children.

According to the seventh aspect of the invention, the elastic block is built in
A counting unit that counts the number of times each region is pressed and a display unit that displays the counted number of times are provided. Rehabilitation, not just fingers, is generally monotonous and painful. On the other hand, according to the device of the present invention, since the number of times of pressing is displayed, it is easy to maintain the user's motivation and interest in training. In addition, even if the user does not remember the number of pressings one by one,
It is possible to judge whether or not the number of times of pressing reaches the target value.
In the eighth aspect of the invention, the counting means is arranged in a strip shape along the longitudinal direction inside the elastic block. Therefore, no matter which of the four fingers presses, the number of pressings can be counted reliably and accurately.

[0022]

The present invention will be described below in detail with reference to examples. (1) Example 1 The instrument A of this example is as shown in FIGS.
It is composed of an outer structure portion 1 and an inner structure portion 2 arranged inside thereof. Of these, the outer structure portion 1 is a lump of a polyurethane foam (foaming ratio; 12.5 times) integrally molded by a predetermined molding die. The hardness of this lump (in Examples 1 to 3, the hardness based on the test method specified in JIS K 6401) is 0.1 kgf / cm ^2.
Is. Further, the outer structure 1 has a substantially tongue-shaped outer shape, and is provided with a substantially reverse tongue-shaped cutout hole 15 penetrating in the vertical direction. Further, the first recess 11, the second recess 12, the third recess 13 and the fourth recess 14 are continuously arranged from the upper side to the lower side of the instrument A on the left side surface side. When the device A is used, the index finger of the user is in the first recess 11, the middle finger is in the second recess 12, the ring finger is in the third recess 13, and the little finger is in the fourth recess 14, respectively.
Can be hung naturally.

On the other hand, the inner structure 2 is also integrally molded with a polyethylene foam (foaming ratio: 20 times, hardness: 0.8 k).
It is a lump of gf / cm ² ) and has an outer shape corresponding to the hollow hole 15. And this inner structure 2
By fitting the above into the hollowed-out hole 15, the device A is obtained. In the device A, the outer structure portion 1 and the inner structure portion 2 are
Although and are removable, both may not be removable. In this case, the inner structure 2 may be covered by the outer structure 1. Further, a skin material that substantially covers the outer periphery of the device A may be detachably or non-detachably provided. The device A may be integrally made of a single elastic material, or the elastic material forming the device A may be other than polyurethane foam.

The part of the instrument A on which the finger can be hung is the first region R ₁ including the first recess 11 and the second recess 1.
The second region R ₂ includes the second region R ₂ , the third region R ₃ includes the third recess 13, and the fourth region R ₄ includes the fourth recess 14. Then, the volume of each of the region parts R _{1 to} R ₄ is maximum in the first region part R ₁ arranged on the uppermost side, and is smaller in the lower region parts R _{2 to} R ₄ . In this embodiment, the difference in the volume of each area part R ₁ to R _4, as shown in FIG. 2 (a), caused by having a difference in width of each region portions R ₁ to R ₄ There is. That is, the width dimension of the first region R ₁ (x ₁
+ Y ₁ = 50 mm) is the maximum, and the width dimension of the second region R ₂ (x ₂ + y ₂ = 48 mm), the width dimension of the third region R ₃ (x ₃ + y ₃ = 38 mm), the fourth region R _It becomes smaller in the order of the width dimension of ₄ (x ₄ + y ₄ = 25 mm).
Incidentally, as shown in FIG. 2B, the thickness of the instrument A is substantially constant throughout.

The volume of each of the region portions R _{1 to} R ₄ is determined in consideration of the average value of the bending force of each of the four fingers of a general male (about 45 years old). Specifically, the volumes of the respective region portions R _{1 to} R ₄ are increased / decreased in correspondence (proportionally) with the differences in the bending force amounts of the four fingers. In this way, the reason why the average value of general men is used as a reference is to set the reference to a slightly higher value so that the instrument A can be used by a wide range of persons regardless of age and sex. However, this standard is not limited to the one shown in the present embodiment, and an average value according to the layer of the user (child, girl, athlete, etc.) can be adopted as a standard. Further, different hardness of the material constituting the device A, accordingly, the volume of each region portions R ₁ to R ₄ will be suitably be increased or decreased.

In the instrument A constructed as described above, the function of each of the recesses 11 to 14 makes it easy to fit each finger when four fingers are hung, and thus is easy to use. Further, no matter which of the four fingers is bent, a repulsive force corresponding to the bending force of each finger can be obtained. Therefore, strengthening 5 or 4 fingers as a whole,
During rehabilitation, etc., a proper load is applied to each finger without any excess or deficiency. Furthermore, when rehabilitating a specific finger, an appropriate load is applied to each finger including a healthy finger. Therefore, it can be used accurately in a wide range of applications. Further, since the structure is simple, it can be manufactured at low cost.

As a modified example of this embodiment, FIGS.
The instrument B shown in FIG. In this instrument B as well, from the same viewpoint as the instrument A, the respective region portions R _{1 to} R ₄ have different volumes. However, the difference in volume is determined by each region R ₁
It is causing and to have a difference in the thickness of ~R every _four. That is, in this device B, the width dimension of each of the region portions R _{1 to} R ₄ is
It is almost constant throughout the entire instrument B. On the other hand, in both the outer structure portion 1b shown in FIG. 4 and the inner structure portion 2b shown in FIG. 5, the thicknesses (z ₁ = R ₁₎ of the locations R ₁₁ and R ₂₁ corresponding to the first region portion R ₁
32 mm, v ₁ = 32 mm) is the maximum, and the thickness of the places R ₁₂ and R ₂₂ corresponding to the second region R ₂ (z ₂ = 30 m)
m, v ₂ = 30 mm), and the thicknesses of places R ₁₃ and R ₂₃ corresponding to the third region R ₃ (z ₃ = 24 mm, v ₃ = 24 m
m), and the thicknesses (z ₄ = 16 mm, v ₄ = 16 mm) of the points R ₁₄ and R ₂₄ corresponding to the fourth region R ₄ become smaller in this order. The instrument B also has the same performance as the instrument A. In addition, in the above-mentioned Example 1 and the modification, although one of the width dimension and thickness of the instruments A and B was made different, both the width dimension and the thickness were made different, and each of the region portions R _{1 to} R _{1 was made.}
It is also possible to make a difference in the volume of ₄ .

(2) Embodiment 2 As shown in FIG. 6, the instrument of this embodiment is a set article provided with three outer structure parts 1c to 1e and three inner structure parts 2f to 2h. The first outer structure portion 1c of each of the outer structure portions 1c to 1e is the same as the outer structure portion 1 of the first embodiment. The second outer structure 2d is the same as the outer structure 1 of Example 1 except that it is made of a rubber molding (made of EPDM, hardness: 0.3 kgf / cm ² ). Furthermore, the third outer structure portion 1e is the same as the outer structure portion 1 of the first embodiment except that the outer dimension is approximately one size larger.

On the other hand, the first inner structural portion 2f of the inner structural portions 2f to 2h is the same as the inner structural portion 2 of the first embodiment. In addition, the second inner structure portion 1g is made of a polyethylene foam (foaming ratio: 30 times, hardness: 0.5 kgf / cm ² ) having a higher expansion ratio than the inner structure portion 2, except that This is similar to the inner structure portion 2 of the first embodiment. Further, the third inner structure portion 2h is formed of a rubber molding (EP
The inner structure part 2 is the same as the inner structure part 2 of Example 1 except that it is made of DM and has a hardness of 1 kgf / cm ² ).

In the present embodiment, the device is constituted by such a set, and each outer structure part 1 constituting the set is also described.
Differences occur in the hardness of c to 1e and the inner structure portions 2f to 2h. As a result, in use, the outer structure 1
A total of 9 combinations of c-1 and the inner structure portions 2f-2h.
You can choose the street. For this reason, it is possible to properly use as 9 kinds of instruments having different repulsive forces. Therefore, it is possible to quickly perform selective use as a device that appropriately corresponds to the difference in ability between users and the layers of users. Also, the first and second
Since the outer dimensions of the outer structure portions 1c and 1d and the third outer structure portion 1e are different from each other, it is possible to instantly perform proper use as a tool having different outer dimensions. For example, it is possible to selectively use the first and second outer structure portions 1c and 1d having a small outer shape for children, and to selectively use the third outer structure portion 1e having a large outer shape for adults. . Furthermore, this set is of great significance in that it allows such selective use without complicating the structure of the device.

Further, each of the above structural portions 1c to 1e, 2f to 2
Each h has different coloring, patterning, etc.
It is preferable to be able to instantly identify ~ 1e and 2f to 2h. In this case, the user may use each of the structural portions 1c to 1e and 2 due to such differences in coloring and patterning.
With the advantage that you can recognize the hardness of f ~ 2h at a glance,
There is also interest in color coordination. Further, depending on the progress of the rehabilitation, the harder structure part 1c
When 1e to 2e and 2f to 2h are selectively used, improvement of the training effect can be expected. The structure parts 1c to 1e and 2f to 2h to be used according to the progress of rehabilitation.
This is because any change in the coloring, patterning, etc. of the item will be a great encouragement for those who perform rebabilitation. The number of the structural parts 1c to 1e and 2f to 2h is not limited to that shown in this embodiment, and can be appropriately selected. Further, as the outer structure portions 1c to 1e, a large number of different outer shapes and dimensions may be prepared.

(3) Embodiment 3 The equipment K of this embodiment is as shown in FIG. 7, except that the counting means 5k and the display means 6k are added. The same as A. The counting means 5k
Is installed inside the outer structure 1k at a position close to the hollow hole 15k along the vertical direction of the instrument K. The counting means 5k is composed of a pair of switch parts 51k and 52k arranged substantially parallel to each other in the vertical direction of the instrument K while keeping a predetermined interval (about 1 mm) from each other. Of these, the switch unit 51k is, as shown in FIG.
The outer periphery of the conductive resin 511k is surrounded by the non-conductive resin 512k except for one surface, and the non-conductive resin 512k at the side end portion of the open surface is elongated by a predetermined interval. On the other hand, as shown in FIG.
A pair of comb-shaped conductive patterns 521k and 522k are formed of a flexible substrate formed on the surface. And
As shown in FIG. 10, the open surface of the switch portion 51k is a substantially strip-shaped ON switch that is arranged to face the conductive pattern of the switch portion 52k.

On the other hand, as shown in FIG. 11, the display means 6k comprises an LCD display 61, a counter device (not shown) incorporating a predetermined counter circuit, and a predetermined reset button 62. . As this counter circuit, a general-purpose circuit having a commonly used counter function can be used. The counter circuit is connected to the ends of the ON switches 51K and 52K. As a result, the output signal output from the counter circuit is digitally displayed on the display section of the LCD display 61. In this embodiment, the counter device is driven by using a battery. Further, the LCD display 61 is arranged so as to be exposed at the upper end side of the instrument K. In this way, even if the device K is held by the user's hand,
This is because the number of times the display 61 indicates can be confirmed from between the user's thumb and forefinger. The reset button 62 is for returning the digital display to the initial value 0.

During use, the outer structure portion 1k pressed by the four fingers or a specific finger is compressed and deformed, so that the corresponding portions of the switch portions 51k and 52k (the pressed finger is pressed). The facing parts, etc.) come into contact and become conductive. As a result, these switch units 51k and 52k
Is turned on. The switch units 51k and 52 of this embodiment
As described above, k is continuously arranged in the vertical direction of the instrument K, and when each region of the outer structure 1k is pressed by each finger, appropriate compression deformation is performed. Therefore, the switch parts 51k and 52k are surely turned on by any of the four fingers.
Can be in a state. Incidentally, as shown in FIG. 12, an outer switch section 51k, it may be constituted by the switch piece 51k ₁ ~51k ₄ to intermittently present only in the portion facing the respective fingers.

According to the apparatus K, the number of times the instrument K is pressed can be displayed accurately and reliably. Therefore, monotonous and painful rehabilitation can be carried out eagerly. Also,
Even if the user does not bother to count the number of pressings, it can be surely determined whether or not the number of pressings reaches the target value. Further, as a modified example of the present embodiment, an instrument M shown in FIG. 13 can be exemplified. In this instrument M, the counting means 5m and the display means 6m are built in the inner structure portion 2m. The instrument M also has the same performance as the instrument K. However, unlike the present embodiment and the modified example, one of the counting means 5k, 5m and the display means 6k, 6m may be arranged in the outer structure portion and the other may be arranged in the inner structure portion.

The present invention is not limited to the specific examples described above, and various modifications may be made within the scope of the present invention depending on the purpose and application. That is,
The external shape, dimensions, etc. of the device are not limited to those shown in the above-mentioned embodiments and modifications.

[0037]

As described above, the devices shown in the above inventions are
It can be used accurately in a wide range of applications and is easy to use. In addition, it is small, lightweight, simple, and inexpensive to manufacture. In particular, the instruments of the fifth to eighth inventions can accurately and promptly respond to the difference in ability of individuals, the layer of users, and the like. Further, according to the instruments of the seventh and eighth inventions, it is possible to eagerly perform painful rehabilitation.

[Brief description of drawings]

1 is a schematic front view of a device A of Example 1. FIG.

2 (a) is a vertical cross-sectional view of the instrument A of FIG. 1 taken along the line L ₁ -L _1, and FIG. 2 (b) is a left side view of the instrument A of FIG.

FIG. 3 is a schematic front view of a device B according to a modified example of the first embodiment.

4 (a) is a left side view of the outer structural portion 1b of the instrument B of FIG. 3, and FIG. 4 (b) is a vertical cross-sectional view of the instrument B of FIG. 3 taken along the line L ₂ -L ₂ .

5A is a left side view of the inner structure portion 2b of the device B of FIG. 3, and FIG. 5B is a vertical cross-sectional view of the device B of FIG. 3 taken along the line L ₃ -L ₃ .

FIG. 6 is a vertical sectional view for explaining an instrument (set) shown in a second embodiment.

FIG. 7 is a schematic front view of an instrument K of Example 3.

FIG. 8 is a vertical cross-sectional view for explaining the outline of a switch unit 51k according to a third embodiment.

FIG. 9 is a plan view illustrating the outline of a switch unit 52k according to a third embodiment.

FIG. 10 is a perspective view for schematically explaining a state in which a switch section 51k and a switch section 52k of Example 3 are assembled.

FIG. 11 is a schematic plan view for explaining a display unit 6k included in the device K of the third embodiment.

FIG. 12 is a schematic front view of an instrument according to a first modified example of the third embodiment.

FIG. 13 is a schematic front view of a device M according to a second modification of the third embodiment.

[Explanation of symbols]

A, B, K, M; instrument, 1; outer structure part, 15; hollow hole, 11-14; concave part, 2; inner structure part, R ₁ ~
R ₄ ; area part, 5 k; counting means, 6 k; display means.

Claims (8)

[Claims] 1. A first area portion on which an index finger can be hung, a second area portion on which a middle finger can be hung, a third area portion on which a ring finger can be hung, and a fourth area portion on which a little finger can be hung. A finger training device that is composed of elastic masses that are arranged in a line and that has concave portions on the surface side of each area portion for guiding each of the fingers, in which the volume of each area portion has a large bending force. A hand training device characterized in that the larger the area where the can be hung, the larger. 2. The hand training device according to claim 1, wherein the elastic block is made of a predetermined resin foam or rubber molding. 3. The elastic block is composed of an outer structure portion arranged on the outside and an inner structure portion arranged on the inner side, and hardnesses of the outer structure portion and the inner structure portion are different from each other. Item 1. The finger training device according to item 1 or 2. 4. The hand training device according to claim 3, wherein the outer structure is made of a soft polyurethane foam and the inner structure is made of polyethylene foam. 5. The hand training device according to claim 3, further comprising at least one other inner structure that is replaceable with the inner structure and has a hardness different from that of the inner structure. 6. The outer structure part according to claim 3, further comprising one or more other outer structure parts that are exchangeable with the outer structure part and differ from the outer structure part in at least one of hardness and outer shape. Hand training equipment. 7. The elastic mass as set forth in claim 1, further comprising: counting means for counting the number of times each area is pressed, and display means for displaying the number of times. Hand training equipment described in crab. 8. The hand training device according to claim 1, wherein the counting means is arranged in a strip shape along the longitudinal direction inside the elastic block.