JP6615562B2 - Finger attachment - Google Patents

Description

  The present invention relates to a finger attachment that can correct body posture distortion that occurs when carrying a baggage by hand and that can reduce the burden on the hand caused by the load.

  When a person carries a baggage with a handle, the load is generally supported by hanging the handle on the ventral side of the second joint of the finger. When the handle portion is thin like a plastic shopping bag known as a so-called “shopping bag”, when the load is heavy, the handle bites into the joint and causes inconvenience such as pain. In addition, when carrying a baggage with one hand, the load is unevenly distributed, which causes a lack of balance in the body, which increases the risk of falling for the elderly.

  More closely, if you generally carry a heavy load, even if the handle is thin and flexible, like a plastic bag, people will unconsciously handle all four fingers except the thumb. Try to grip the handle using the. However, since the flexible handle is deformed and the load concentrates locally, the load is concentrated on the index finger and little finger up to a certain load, and the middle finger and ring finger are played. The index finger and little finger hang down due to the concentrated load, and in any case, the power of all four fingers cannot be exerted.

  In the first place, the index arm / middle finger and ring finger / little finger have different forearm muscles that are linked during use. When the index finger and middle finger are bent, only the flexor group on the radial side contracts, whereas when the ring finger and little finger are bent, both the flexor group and extensor group on the ulna side contract. That is, even if force is applied to the ring finger and little finger, the flexor and extensor are competing and the forces are offset, so that the power that can be exerted and the endurance are inferior compared to the index finger and middle finger.

In the upper arm, the biceps, which is a flexor, contracts when the index finger / middle finger is bent, and the triceps, which is an extensor, contracts when the ring finger / little finger is bent. Therefore, when the force is applied to all four fingers, the side is open, whereas when the force is applied only to the index / middle finger, the side is tightened. When the armpits are open, the spine tends to bend forward and the pelvis tends to tilt backwards, and the lower limbs are also intimate. Therefore, the balance of the whole body is also lost, and when the load is heavy, it is easy to get tired and the risk of falling is increased. On the other hand, in a state where the sides are tightened, the spinal column inevitably draws an appropriate S-shaped curve and the inner crotch is prevented, so that the balance of the whole body can be easily maintained.

Further, when a heavy load is held in one hand, the triceps, which is an extensor, contracts as described above when the handle is grasped with all four fingers and force is applied to the ring finger and little finger. As a result, the shoulder on one hand side rises unconsciously, and it becomes a form that supports the uneven load by forcibly shifting the center of gravity of the body. Naturally, the spinal column is displaced from the original center line and distorted, so that the balance of the whole body is lost, which causes fatigue and falls. However, if you hold the handle with only two fingers, the forefinger and middle finger, the load is supported only by the stronger forearm and flexor group of the upper arm. Hard to collapse.

The human body has a variety of reflexes, but its functions include visceral reflex (autonomic nerve reflex) that contracts visceral muscles and promotes gland secretion via the autonomic nervous system, and contracts skeletal muscles. It is roughly divided into somatic reflection. The patella tendon reflex, in which the lower leg jumps when the patella tendon is struck with a mallet, is one of the typical somatic reflexes, but the aforementioned unconscious muscle action is due to the somatic reflexes of the human body. .

As described above, unless you are carrying an extremely heavy baggage, if you carry a baggage with one hand, it is better not to use all four fingers forcibly and hold the handle with two fingers, the index and middle fingers. Effective for retention. In fact, while holding a plastic bag with luggage in one hand, for example, when you are likely to be snatched, or when your shoulder collides with another person while walking, hold the handle with four fingers. When holding with two fingers of the index and middle fingers, it is stronger to withstand momentary pulling, and is less likely to break the balance when hit by impact Known from experience.

So far, for example, an auxiliary tool such as “a shopping bag handle auxiliary tool” described in Patent Document 1 has been proposed, but this assumes that the user holds the handle with all four fingers. An auxiliary tool wrapped with a cushion material is attached to the handle side for use.
Japanese Utility Model Publication No. 7-22945

  Such prior art is merely intended to reduce the pain that the shopping bag bites into the finger, and prevents the balance of the entire body from being lost by mainly holding the handle with two fingers of the index and middle fingers. The effect is not positive.

  The invention of the present application reduces the burden on the hand when carrying the baggage with a handbag based on the above-mentioned rule of thumb of the inventor and the physiological knowledge concerning somatic reflex, and the distortion of the body posture due to the weight of the baggage. It is an object of the present invention to provide a finger mounting tool specialized for gripping a handle using not only all four fingers of the hand but only two forefinger / middle finger so that correction can be made.

In order to solve the above-mentioned problems, the finger attachment device according to claim 1 of the present invention is used for attaching to only two fingers of the index finger and the middle finger, and holding the baggage and hanging it. A finger attachment device having a substantially horseshoe-shaped body outer surface having a length corresponding to the width of the two fingers of the index finger and the middle finger is provided with a second joint and a third joint of the index finger and the middle finger in a direction orthogonal to the body axis. Between the joints, there are two recesses whose upper surfaces abut, and the two recesses fit the abdominal surfaces from the first to third joints of the two fingers, the index finger and the middle finger, respectively, when grasping the main body. It is characterized by being able to fit together . In addition, it is preferable that the material of the finger attachment device is an elastic body, and the whole is integrally formed of silicon rubber.

The main body has a substantially horseshoe shape, that is, a substantially inverted U-shaped cross section like a saddle used for horse riding, and the inside is a groove part for suspending a handle of a load. The two concave portions form a ridge portion and a flange portion formed by raising the central portion and both ends of the main body in a direction orthogonal to the main body axis, respectively, and are formed in such a manner that the finger and stomach surfaces come into close contact when gripped.

The hand-fitting device is worn by opening the hand on the side holding the luggage in advance, placing each recess between the second and third joints of the index and middle fingers, and bending both fingers lightly. Hang a handle on the groove and suspend the load with only two fingers. Since the weight of the load on the handle is distributed throughout the main body via the groove, the handle is prevented from biting into the second joint of the two fingers, the user does not feel pain, and the blood circulation of the finger Inhibition is also alleviated.

In addition, the two concave portions are formed so that the abdominal surfaces from the first to third joints of the two fingers of the index finger and the middle finger can be fitted in close contact with each other when grasping the main body. Since it is distributed not only to the 2nd joint of the 2 fingers but also to the 1st and 3rd joints, it becomes a form that supports the load using the muscles of the whole finger, and further, via the 3rd joint (so-called MP joint) Encourage the forearm flexor side flexors and biceps to work positively. As a result, not only is the fatigue reduced compared to holding the load with the force applied only to the fingers, but the balance of the body is prevented from being lost as the sides are tightened as described above.

In addition, the finger attachment device according to the present invention can be used as a posture correction device even if the finger attachment device is attached without a load. By integrally molding the main body with silicon rubber, the elastic body and the presence of the groove cause a proper bending, so a repulsive force works when two fingers are grasped. By repeatedly gripping and loosening the finger attachment, the forearm and upper arm flexor muscles can be stimulated unconsciously, and the somatic reflex brought about by the stimulation causes the arms to be tightened and the legs to rotate. Therefore, not only the stoop and the inner crotch style of walking are corrected, the posture of the whole body is improved, but also the performance of the body during exercise is improved by coordinating the movement of the muscles of the whole body.

Note that the present invention is mainly intended to be used when carrying a baggage by attaching it to two fingers, the index finger and the middle finger, but as a device for exciting somatic reflection, the middle finger and the ring finger, or the ring finger It can also be used for two fingers each. In particular, when attached to two fingers, the ring finger and the little finger, and used for flexion and extension, somatic reflexes by stimulation to the extensor group on the forearm ulna side and the triceps muscle activate the parasympathetic nerve. You can expect the effect of relaxing the preparation spirit.

  The finger attachment device according to the present invention reduces the burden on the hand when carrying a load with a handbag, and has an effect of correcting distortion of the posture of the body due to the weight of the load. In addition, even when worn with a baggage and used for finger flexion and extension, the effects of improving posture and adjusting autonomic nerves by somatic reflex can be expected.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view as seen from the upper surface of a finger attachment device according to the present invention, that is, a palm side on which a finger is brought into contact, and FIG. 2 is a perspective view as seen from the lower surface, ie, a side having a groove for catching a handle of a load. FIG. 3 is a front view, FIG. 4 is a plan view, FIG. 5 is a bottom view, FIG. 6 is a side view, and FIG. 7 is a schematic view showing a state in which a finger attachment device is attached to the index finger and middle finger of the left hand.

  The finger attachment device according to the embodiment is integrally formed of silicon rubber, and has a peak portion 10 at the center of the upper surface of the substantially horseshoe-shaped main body 1 and flange portions 11 at both ends. The upper surface sandwiched between the two portions forms two recesses 12 in a direction perpendicular to the main body axis. The user puts the abdominal surface of two fingers in close contact with these recesses and attaches them to the hand. The lower surface of the main body 1 is a substantially U-shaped groove portion 14 sandwiched between edge portions 13 at the lower end of the upper surface, and after mounting, a handle of a load is hooked and suspended. The edge portion 13 has such a length that it is in close contact with the ventral side of the first joint and the third joint of the finger when the hand is gripped after wearing.

  The size and curve of the main body 1 and the concave portion 12 are set to a shape adapted to the length of the finger and the ventral side of the two fingers to be worn. Accordingly, it is preferable to mold different sizes depending on the size of the hand and the finger to be worn. In addition to the elasticity of silicone rubber, the thickness of the main body 1 shows the repulsive force due to the shape, and considers the fit of the fingers to the first and third joints when holding the hand. Therefore, it is desirable to mold the side closer to the upper surface and the side closer to the edge 13 thinner.

  FIG. 8 is a schematic diagram showing a state in which a finger attachment device according to the present embodiment is attached to the left hand and a baggage is held by a thin handle. The load from the handle hooked on the central portion of the groove 14 of the main body 1 naturally goes in the direction of the second joint of the finger vertically below. However, the load is not concentrated only on the second joint, but is also distributed to the first and third joints, so that the load is supported using the muscles of the entire finger, and the forearm is further routed via the third joint. Encourage the flexor group and biceps to work positively. This not only reduces fatigue compared to holding the load with the fingers alone, but also prevents the balance of the body from being lost by tightening the sides.

    As mentioned above, although embodiment of this invention was described referring drawings, this invention is not necessarily limited only to the structure mentioned above, In the range which achieves the objective of this invention and has an effect suitably, As long as they can be modified and fall within the scope of the technical idea of the present invention, they belong to the technical scope of the present invention.

The finger attachment according to the present invention can be easily carried in a pocket or the like with a very simple structure, and can be manufactured at low cost. It is suitable when carrying a baggage that is extremely thin and flexible like a shopping bag containing products such as supermarkets, and can reduce the burden of shopping especially for elderly people with weak hands and fingers. , Can improve safety during walking. In addition, if it is used for exercises that are worn on the hand and repeatedly hold and relax even when not carrying luggage, the body reflexes will unconsciously improve the posture of the body and improve performance during exercise. Can do.

The perspective view which looked at the finger mounting tool concerning an embodiment from the upper part The perspective view which looked at the finger attachment tool concerning an embodiment from the lower part Front view of a finger attachment device according to an embodiment The top view of the finger installation tool concerning an embodiment The bottom view of the finger attachment tool concerning an embodiment Side view of finger attachment device according to embodiment Schematic which shows the mounting state of the finger mounting tool which concerns on embodiment The schematic which shows the state which carried the load with the finger | toe mounting device which concerns on embodiment, and carried the load

1 Body 10 Peak 11 Flange 12 Recess 13 Edge 14 Groove

Claims (1)

A finger attachment that is attached only to the two fingers of the index and middle fingers, and is used to carry the baggage by holding the handle of the luggage, and has a length corresponding to the width of the two fingers of the index and middle fingers The outer surface of the substantially horseshoe-shaped main body has two recesses whose upper surfaces are in contact between the second joint and the third joint of the index finger and the middle finger in a direction perpendicular to the axis of the main body. When grasping the above, the finger attachment device is characterized in that the abdominal surfaces from the first to third joints of the two fingers of the index finger and the middle finger can be fitted and brought into close contact with each other.