JP2010104643A - Pentangular column-shaped neck stretching pillow - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems wherein a user cannot find a desirable pillow surface at a desirable position in a desirable direction for stretching the neck with a regular sleeping pillow even if the user tries to extract the resistance effective for stretching by pressing, hooking or rubbing the head on the pillow surface, wherein the user can not rest the head at a desirable angle or at a desirable position because the user can not freely make motions while the user lies on a side and because the height of the pillow is too low, and wherein the user can not desirably stretch the neck because the head slides on the pillow when the head is applied to the pillow and appropriate force can not be applied to the head, and wherein an appropriate pillow can not be found in the search in the market or in patent information. <P>SOLUTION: Samples of pillows in various shapes and made of various materials are developed in search of the pillow capable of being easily applied to a selective region in the face or head of the user and capable of extracting the sufficiently necessary drag. As a result of the research and development, it is found that the pentangular column-shaped pillow made of an elastic material such as foamed plastics known as a cushion material can totally solve the above problems, and the practicality and the safety of the pillow are proved and confirmed after the long-time use. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a device that can easily stretch neck muscles, cervical vertebrae, scalp and the like on a bed or floor.

Humans often want to stretch their neck and cervical vertebrae on the bed at bedtime and when getting up. In that case, the head is pressed against the pillow, hooked, or rubbed to try to draw out effective drag for stretching, but it is inoperable when lying down, and it is easy due to restrictions on the human skeleton You can't get the drag you want. The height is too low or the pillow is too soft to apply force, there is no pillow surface in the direction you want to apply force, or there is no force due to slipping, etc. . Also, even if you try to use the opposite end or corner of the pillow, it is difficult to move your head there because the pillow is quite wide. In this way, it is currently difficult to stretch around the neck on a normal pillow.

Sleeping pillows are intended to be a good night's sleep, so it's natural to have this kind of problem, but if you haven't done so, we researched related commercial products and patent information to find out if there are any products . However, there is no equivalent to the idea of this application. As a result of the investigation, there was the following related patent information.
Japanese Patent Publication No. 2007-159818 Japanese Patent Publication No. 2006-320445 Japanese Patent Publication No. 2006-068520 Japanese Patent Publication No. 2005-279203 Japanese Patent Publication No. 2005-152410 Japanese Patent Publication No. 2002-058719 Japanese Patent Publication No. 2001-112830 Japanese Patent Publication No. 2000-126017 Japanese Patent Publication No. 10-314199 Japanese Utility Model Publication No. 06-009615 Registration plan No. 3060646

   A low-cost tool for solving the above-mentioned technical and market problems related to stretching around the neck on the bed.

In the situation as described in the background art, the inventor has been developing a prototype for many years to find a tool that can easily stretch around the neck on the bed. Basically, how can we perform the stretching action that we normally do on the bed, such as pushing the head against the pillow, hooking, rubbing, etc. at will? For many years, prototype development and testing were repeated for the structure, shape, and materials of pillows. As a result, we found that pentagonal pillows made of elastic materials such as foamed plastics, commonly known as cushioning materials, completely solve the problem, and their safety and effectiveness through long-term practical use. I was able to confirm. Hereinafter, it will be described how the pentagonal pillow of the present invention is utilized and effective as a stretch function around the neck muscles.

  FIG. 1 is a bird's-eye view for explanation in a state in which the cover of the pentagonal body stretch pillow of the present invention is removed. The cross section 4 perpendicular to the central axis of the pentagonal prism is a regular pentagon. The cross section 5 shows that the cross section cut obliquely about the central axis is such a modified pentagon.

This pillow can be used on a sleeping pillow in any orientation or position in the vertical, horizontal, diagonal, and free positions. FIG. 2 shows an example of use placed obliquely. As shown in FIG. 3, it can be used against a sleeping pillow. FIG. 4 shows a cross section when placed on a sleeping pillow. As described above, stretching around the neck muscles pushes and pulls the neck back and forth, left and right on the pillow, and bends and twists. Such movement requires a height and space where the chin can be lowered and the face and head can be moved and swung freely. However, as shown in this figure, the height and space 6 are secured. Has been. Furthermore, since this stretch pillow can be easily moved while being handled by hand, it is possible to easily apply two slopes 3 having different directions with respect to the ridgeline of the vertex 2 from various directions on the head and face. . In addition, since the ridgeline is clear, even near the eyes or nose, it is possible to apply the desired surface to the point where the eyes and nose are not crushed. In this way, it is possible to easily create an effective surface for stretching, which was one of the challenges.

Now, let me recall the simple mechanical properties of an object on the slope. When an object having a weight W as shown in FIG. 5 is placed on a slope, a frictional force Fr naturally acts on the object in a range of an inclination angle at which no slip occurs. In addition, when the object is a sphere or ellipsoid such as a head, a rolling force acts downward on the slope. In other words, if you make a slope on a pillow and place your head on the slope, frictional force and rolling force will work on your head. FIG. 6 is a schematic diagram for mechanical explanation when a person is using the stretch pillow in a posture of lying on the floor. Frictional force Fr and normal force Rv act on the contact point between the slope and the head. Although rolling force works, it is converted into bending moment and torsional moment by force from the body side through the cervical spine. Here, the meaning of the drag and moment shown in this figure as a stretch effect will be briefly described. The ligaments of the muscles around the neck muscles are affixed to the surface of the skull skull, and the frictional force on the skull skull acts to move the ligament and the muscles connected to it in the direction of the frictional force. For example, if the head is moved back and forth, the direction and size of the frictional force and muscle movement change. This will have the effect of acupressure. As you can see easily, the direction and magnitude of the normal force Rv and frictional force Fr at the contact point can be freely controlled by the direction of the slope and how the force is applied from the body side. This force from the body side is not only due to the muscles that shrug, bend and twist the neck, but also, for example, move weight on the shoulders, elbows and hips, or rotate the body and become half lying To move the center of gravity, generating forces and moments in various directions,
It is transmitted through the cervical spine and neck muscles to the contact point between the pillow and the skull. Accordingly, the magnitude and direction of the vertical drag Rv and the frictional force Fr at the contact can be freely changed by one's own intention. In this way, at the contact point between the pillow and the head, you can obtain a force that can be controlled arbitrarily in both size and direction, so you can freely apply the force and moment you want to various parts around the neck, You can do a satisfying stretch.

Furthermore, the important thing in stretching around the neck muscles is traction and rotation of the atlanto-vertebra (axial) joint that connects the cervical vertebra and the skull. In FIG. 6, as described above, the drag at the contact between the head and the pillow (the resultant force of the vertical drag Rv and the frictional force Fr) works in the direction of pulling out the atlanto-axial joint by controlling the force from the body side. I can do it. This action is just like “towing” that stretches the atlanto-axial (axial) joint and cervical vertebra toward the crown. If the direction of the slope and the body position are changed and stretching is performed at a position as shown in FIG. 13, the vertical drag Rv and the frictional force Fr generate a moment with respect to the atlas (axis) joint. If the XYZ axes are taken as shown in FIG. 6, the directions are torsional moment Mz, longitudinal bending moment My, and side bending moment Mx. As is well known, this joint has functions of bending the neck back and forth and rotating left and right. Although there is a limit in the rotation of each joint in terms of structure, it is necessary to give a stimulus for forcibly turning further beyond the limit as a stretch. This stretch is very pleasant when you do it skillfully, but it is difficult and dangerous to do so, so you can't inadvertently ask an amateur other than an expert such as a masseur. However, with this stretch pillow, you can apply your own strength while feeling the strength of the force and the degree of danger. There is no danger like a device that applies mechanical force with an electric motor.

I would like to touch on one of the challenges here, slipping when the head is rubbed against a pillow. Some luxury hotel pillows are very soft and soft, but generally soft pillows tend to squeeze your head harder, push you warmly, don't force, and cause slipping. Considering this phenomenon dynamically, it becomes as follows. In order to extract a large frictional force, a force parallel to the surface is applied while strongly pressing the surface. However, in soft materials, the contact surface is crushed by the pressing force from the head, and the angle between the force and the surface changes easily beyond the friction limit. This is the cause of arm push to slip and warmth. This is a matter of material hardness. This problem can be avoided by using a slightly harder material in the foamed plastic. Any number of such materials can be procured from commercial products.

Next, let us consider slipping when a spherical object such as a head is rubbed against a pillow. The rubbing movement draws frictional force while pressing the surface, but the pressing force on the bed is generated by applying horizontal force such as bending and rotation of the neck in addition to the weight of the head and body (vertical direction). Let Therefore, since the resultant force is always a force in a vertical oblique direction with respect to the horizontal plane, the slope is clearly less likely to slide on the plane and the slope. This is shown in FIG. In other words, when the rubbed surface is rubbed, it draws out strong drag and strong friction without causing slippage. The slope 3 of the regular pentagonal pillow shown in FIG. 4 performs its function exactly. And the shape and inclination of this regular pentagonal pillow is easier to do in stretching exercises such as rubbing and hooking, which humans perform in a supine or lying posture, compared to other prismatic bodies and cylindrical bodies, It is very good in terms of stability. For example, when the bottom surface is placed on the floor, it is odd-numbered prisms that have a vertex that is directly above and can create a slope, but a triangular prism is too steep and difficult to use. In a column with seven or more corners, the length of one side is smaller than that of a pentagonal column, and it is cheap and rolling. Moreover, since the contact width with a head is small, a touch is also inferior.

FIG. 8 schematically shows a state where the head is placed on a slope, the head is rolled by twisting the neck left and right along the slope. Remove the force around the neck and rotate the neck slowly to the limit. A torsional moment due to gravity is applied to the neck. If force is applied not only from the weight of the head but also from the body side, a larger torsional moment can be applied to the neck.

FIG. 9 schematically illustrates stretching performed by placing the apex (ridgeline) of a pentagonal column on a floor or a sleeping pillow and placing the head on a horizontal upper surface. The apex, which is the contact point between the pillow and the floor, is naturally crushed, but the head and pillow can be rotated as a unit around the contact point. Along with that, the neck and cervical spine connected to the head are also greatly involved and stretched or twisted. This is schematically shown in FIG.

  Fig. 11 shows that when both ends of the stretch pillow are gripped with both hands and wound around the occipital half circumference and the neck is twisted around the cervical axis, a large torsional moment is generated and twist stretching is possible. At this time, if a force that shrugs the neck is applied from the body side, twist stretching can be performed while lifting the cervical spine.

As described above, the present invention has a very simple structure, but makes it possible to perform many stretching operations around the neck using the characteristics of the pentagonal column.
It is very easy to handle and easy to operate even in the dark, such as on a bed. There is no danger or anxiety like mechanical because you can control how you apply power. The manufacturing cost is very low. In addition, this stretch pillow can help sleep with a posture and comfortable drag that cannot be taken with a sleep pillow alone, such as when it is difficult to sleep. In other words, it can also be used as an aid for sleeping pillows. The ability to provide convenient and safe tools at a low price has a great effect on maintaining and promoting the health of the general population.

In the present invention, an elastic material such as foamed plastic is used, but a material having a certain degree of hardness is required to obtain a strong drag. On the other hand, if it is too hard, there are problems such as feeling pain and feeling bad. Therefore, not only one kind of material but also a hard material and a soft material may be combined as shown in FIG.

  A regular pentagonal pillow that has been used for the above description is an example.

It is a bird's-eye view of the state which removed the cover of the pentagonal column stretch pillow which is an example of the present invention. It is the usage example which placed the stretch pillow of the present invention diagonally on the pillow for sleep. It is the usage example which leaned the stretch pillow of the present invention diagonally from the floor on the sleep pillow. It is sectional drawing when the stretch pillow of this invention is set | placed on the pillow for sleep. It is a mechanical explanatory view when placing an object on a slope. It is a schematic diagram for mechanical explanation when using it in a supine posture on a stretch pillow. It is a schematic diagram for comparing and explaining slipperiness when the head is pressed against a horizontal surface and when pressed against a slope. It is explanatory drawing which shows that peculiar stretch can be performed by rolling a head on the slope of a stretch pillow in a favorite direction. It is a figure for demonstrating the peculiar stretch performed by making the vertex of a pentagonal column into the bottom and a base face up. It is a schematic diagram which shows an example of the stretch performed by how to put of FIG. It is explanatory drawing which shows the usage example performed by winding a stretch pillow around a head. It is explanatory drawing which shows the example which combined the hard material and the soft material as a structural material. It is a schematic diagram for mechanical explanation that the drag from the pillow changes and the moment to the cervical spine changes when the direction and position of the pillow are changed.

Explanation of symbols

0 Sleep pillow 1 Stretch pillow of the present invention (showing the whole)
2 The ridgeline including the apex of the pentagonal pillow 3 The slope between the ridgeline 2 4 The cross section perpendicular to the central axis of the stretch pillow 5 The cross section oblique to the central axis of the stretch pillow 6 Free space around the stretch pillow

Claims (1)

  Stretch pillow around the neck of the pentagonal column made of elastic material such as foam plastic

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