JP6173392B2 - Head cushion - Google Patents

Description

  The present invention relates to a cushion for a head, and more particularly to a cushion for a head suitably used as a pillow.

  Patent Document 1 describes a sleeping pillow including a neck receiving portion that extends in the left and right direction and a pair of left and right height blocks that form an inclined surface that opens upward and rearward (the top of the head). This sleeping pillow can stably support the neck.

  Furthermore, Patent Document 2 includes a flat concave portion for placing the head on the upper surface and a concave portion for deformation on the lower surface, and when the head is placed on the upper surface, it sinks into the space on the lower surface and wraps and fixes the head. A diagnostic pillow is disclosed. This diagnostic pillow can fix the head in an upward state and somewhat restrict the head from swinging left and right.

  On the other hand, Patent Document 3 discloses a left and right rolling pillow that has a semi-cylindrical shape and rolls together with the head on the head. This left and right rolling pillow can make it easier to turn left and right.

JP2015-104651A Utility Model Registration No. 3012934 JP 11-192144 A

  Conventionally, there is a pillow that exhibits a specific function, for example, a function of holding the position and orientation of the head relative to the pillow in a predetermined state by specifying the position where the head is placed on the pillow. For example, in Patent Document 1, the horizontal state of the head is maintained by dropping the head along the right and left and rear inclined surfaces. Further, for example, in Patent Document 2, the pillow is deformed by putting the head on, and is sandwiched so as to wrap the head, and the head is fixed in an upward state.

  However, in general, a person will somehow turn over while sleeping. Furthermore, hitting some amount while sleeping is also considered a natural human action. In that case, it is generally not natural to hold the head in a specific position during sleep, and it is difficult to maintain such a state. Furthermore, for example, it is difficult to expect the head to return to the specific position of the pillow after turning over.

  In this connection, for example, as disclosed in Patent Document 3, a pillow is wound around the head from the beginning. Since this substantially fixes the position of the head relative to the pillow, the position of the head relative to the pillow is maintained. However, for example, the head cannot be held horizontally.

  As described above, it is difficult to simultaneously solve the problem of placing the head on a part that exhibits a specific function of the pillow and allowing the user to turn over freely.

  In view of this, the present invention has a technical problem to provide a head cushion that does not forcibly turn over and that prompts the head to return naturally to a specific position on the pillow.

(1) The cushion for a head of the present invention is made of a foam having elasticity, and a concave groove for placing the head on the center of the upper surface is formed, and hills are formed on the left and right of the concave groove. , the top surface of the lands of the left and right grooves are substantially parallel to the deep groove of the plurality of extending in the longitudinal formation Rutotomoni, between the deep grooves adjacent to each other are the elastic piece, the upper surface of the right and left lands However, it is characterized in that it is formed on a gently inclined surface or curved surface that rises toward the left and right ends. The deep groove is preferably a V-groove, and the width of the upper surface of the elastic piece is preferably 1 to 10 mm.

(2) In such a cushion for the head, an ear receiving groove for receiving the earlobe when the user faces sideways at a part of the upper surface of the left and right hills that is somewhat away from the concave groove. What is formed is more preferable.

(3) Furthermore, it is preferable that the bottom of the groove has a substantially V-shaped cross-sectional shape that supports the vicinity of the rear protrusion of the head.

(4) Furthermore, it is preferable that the bottom of the concave groove is provided with a protrusion that supports the neck.

(1) The cushion for a head of the present invention is stable so as to be directed toward the center as the entire head along the inclination of the concave groove when the head cushion lies in the concave groove or lies on a chair. Supported.
Further, when the user changes the posture sideways, the head rides on the left and right hills of the groove, so that a large step between the shoulder and the side of the head can be accommodated. For this reason, it is easy to turn over.
And since a plurality of deep grooves are formed on the upper surfaces of the left and right hills substantially parallel to the concave grooves, even if the head rides on the upper surface of the hills, the cushion is elastically deformed toward the space of the deep grooves. By doing so, the head can be softly placed on the hill and easy to roll over.
Furthermore, since the upper surfaces of the left and right hills are formed on a gently inclined surface or curved surface that rises toward the left and right ends, it is possible to gently restrain the head from going outside when the head is on the hill. To do. In addition, even when rolling outward, it is encouraged to return gently inside. And when returning from the horizontal posture to the supine position, the head is likely to enter the concave groove again.
Furthermore, as the head is rotated, the vicinity of the tip of the protruding part between the deep grooves gradually touches the face, giving some discomfort to the user, thereby gently suppressing the head from going outside. The
Furthermore, it is expected that the left and right protrusions at the back of the skull, that is, the protrusions near the root of the cervical spine are supported by the inclined bottom of the groove. And it is anticipated that the contact part of a head will be pressed by the protrusion.

(2) In such a head cushion, an ear receiving groove for receiving the earlobe when the user turns to the side is formed in a part of the upper surface of the left and right hill portions somewhat away from the concave groove. In this case, when the user turns over sideways, the earlobe enters the ear accommodation groove, so that the earlobe is not pressed against the cushion due to the weight of the head. Therefore, it is easy to turn over and it is possible to have a more natural sleep.

(3) Further, when the bottom of the groove has a substantially V-shaped cross-sectional shape that supports the vicinity of the rear projection of the head, the head is brought along the V-shaped slope to the inside thereof. The head can be stably supported so that the entire head is directed toward the center, and the position of the head can be kept horizontal.
In addition, it is expected that the left and right protrusions at the rear of the skull, that is, the protrusions near the root of the cervical vertebra are supported by the bottom part inclined in a V shape. And it is anticipated that the contact part of a head will be pressed with the protrusion.

(4) Furthermore, when the protrusion part which supports a neck part is provided in the bottom part of the said ditch | groove, a neck | muscle of a neck can be warped somewhat. This is expected to reduce neck stiffness.

FIG. 1 is a perspective view showing a state in which an attachment is disengaged in the first embodiment of the head cushion of the present invention. 2a is a front view showing the cushion with the attachment of FIG. 1, FIG. 2b is a bottom view of the cushion with the attachment of FIG. 1, and FIG. 2c is a sectional view taken along line AA of FIG. FIG. 3 is a perspective view showing a state in which the attachment is disengaged in the second embodiment of the head cushion of the present invention. FIG. 4 is a front view showing another embodiment of the head cushion of the present invention. FIG. 5a is a front view showing still another embodiment of the cushion of the present invention, and FIG. 5b is a perspective view showing another embodiment related to the present invention.

(First embodiment)
"1. Outline of cushion"
The head cushion 10 shown in FIG. 1 basically has a horizontally long and flat rectangular parallelepiped shape, and a concave groove 11 extending in the front-rear direction is formed at the center of the upper surface. The bottom 12 of the concave groove 11 has a relatively shallow substantially V-shaped cross-sectional shape. A standing wall 14 rises from the end of the bottom 12. In this embodiment, it rises somewhat upward. The portions left on the left and right of the concave groove 11 of the bottom portion 12 are hill portions 15.

  The inclination angle of the bottom 12 of the concave groove 11 is, for example, about 10 ° to 45 °, preferably 10 ° to 20 °. And the width | variety of the opening end of the ditch | groove 11 is 160-200 mm, Preferably it is 170-190 mm. Furthermore, the depth of the deepest part is 65-85 mm, Preferably it is 70-80 mm.

  An ear receiving groove 17 having a substantially trapezoidal cross section is formed in the upper surface 16 (see FIG. 2a) of the hill portion 15 near the concave groove 11 so as to extend in the front-rear direction. In the upper surface 16 of the hill portion 15, a large number of V grooves 18 (deep grooves) are formed on the outside of the ear receiving grooves 17 so as to extend in the front-rear direction so as to be parallel to the concave grooves 11.

Since the concave groove 11, the ear receiving groove 17 and the V groove 18 all extend in the front-rear direction, the cushion 10 extends in the front-rear direction with the same cross section as a whole. For this reason, molding such as mold molding and cutting is relatively easy.
Further, in this embodiment, since the concave groove 11, the ear receiving groove 17 and the V groove 18 are arranged at a slight interval, the remaining area of the upper surface 16 is small, but the imaginary 19a in FIG. As shown by the line, it is inclined to rise somewhat towards the outside. In this embodiment, it is inclined so as to rise somewhat toward the inside and outside, with the vicinity indicated by symbol B as the lower end. The curvature radius is 390 to 430 mm, preferably 400 to 420 mm.
Furthermore, as shown by an imaginary line 19b parallel to the imaginary line 19a, the line connecting the bottoms of the ear receiving groove 17 and the V-shaped groove 18 has a lower end in the vicinity of the symbol B so as to protrude somewhat downward. Is formed. The curvature radius is 420 to 460 mm, preferably 430 to 450 mm. Thereby, since the groove depth becomes the same, the flexibility of the hill part 15 is arranged to the same extent.

The opening width of the ear receiving groove 17 is 45 to 65 mm, preferably 50 to 60 mm. Furthermore, the depth is 20-40 mm, Preferably it is 25-35 mm.
As shown in FIG. 2a, the groove bottom is inclined downward and outward, but may be straight or may be inclined somewhat upward.

The V groove 18 is five in the figure. The depth of the V-groove is 20 to 45 mm, preferably 30 to 40 mm. The width between the grooves is 15 to 35 mm, preferably 20 to 30 mm.
Furthermore, the width of the upper surface 16 formed between adjacent grooves is 1 to 10 mm, preferably 3 to 7 mm.
The number of the V grooves 18 is preferably increased or decreased according to the left and right width of the hill portion 15. As shown in FIG. 2a, considering the size of the head, in the case of the V-groove 18 of the present embodiment, at least three or more widths are required as the width that allows the head to be turned over.

As shown in FIGS. 1 and 2 b, a notch 10 a is formed at the front end of the bottom 12 of the cushion 10. Further, a trapezoidal comparatively small through hole 10b is formed behind it. An attachment 13 is attached to the notches 10a and the through holes 10b as protrusions that support the neck.
In the cushion 10 of FIG. 1, a cushion (not shown in FIG. 1) formed with a notch or the like to which the attachment 13 is not attached is referred to as a cushion body, and in FIG.

As shown in FIG. 2c, the attachment 13 has a leg portion 13a engaged with the notch 10a and a leg portion 13b fitted into the through hole 10b, and is connected upward so as to connect them. A convex connecting portion 13c is provided. As shown in FIG. 1, the attachment 13 gradually becomes wider from the front to the rear, has a substantially triangular shape or a trapezoidal shape in plan view, and has a curved shape that protrudes upward most in the vicinity of the center thereof. This attachment is supported with the neck slightly stretched or warped. However, most of the weight of the head is supported by the bottom 12 of the groove 11.
Further, there is a space 13d between the front and rear legs 13a and 13b and the bottom 12 of the groove. The connecting portion 13c is elastically deformed downward by the space 13d.
The height of the attachment 13 is 20 to 80 mm, preferably 40 to 60 mm. The attachment 13 may have one leg.

  Returning to FIG. 1, the cushion 10 and the attachment 13 are made of a foam having elasticity. In this embodiment, they are made of the same material. The foam is preferably open-celled, thereby improving air permeability and comfort. The foam may be formed from a polymeric material such as a synthetic resin or a synthetic or natural rubber. The elasticity is such that when the head is placed in the concave groove 11, the bottom 12 sinks somewhat and supports it stably. The surface of the synthetic resin foam may be covered with a skin during molding, but it is preferable to remove the skin from the viewpoint of air permeability. Since the surface of the foam is porous, it is easily soiled. Therefore, it is accommodated in a cloth bag made of cotton or the like (see reference numeral 20 in FIG. 4) and further used with a pillow cover.

“2. How to use”
When the cushion 10 is used, the head 21 is placed in the central groove 11 as shown in FIG. Since the concave groove 11 is relatively shallow, the user's earlobe 21 b does not enter the concave groove 11. The rear surface 22 of the head 21 is supported by the bottom 12 of the concave groove 11. In the case of a user having a large head 21, the standing wall 14 elastically expands outward and is sandwiched from the left and right, so that the head 21 is further stabilized. Even when the head 21 is small and is not sandwiched between standing walls, it is stably supported by the V-shaped bottom 12. The neck is supported by the attachment 13.

On the other hand, some people do not fall asleep on their backs and immediately turn over sideways. In that case, as indicated by an imaginary line 21 a, the head rolls out of the groove 11 and rides on the upper surface 16 of the hill 15.
Since the upper surface 16 is at a position higher than the bottom 12 of the concave groove 11, it absorbs the step between the shoulder 23 and the head 21a caused by turning over. Thereby, it is comfortable to sleep even in a sideways state. Furthermore, since the earlobe 21b enters the ear accommodation groove 17, the earlobe 21b is not compressed and is more comfortable.
In addition, since the upper surfaces of the left and right hill portions 15 are formed as gently inclined surfaces or curved surfaces that rise toward the left and right ends, when the head rides on the hill portions, it is possible to gently go outside. Suppress. In addition, even when rolling outward, it is encouraged to return gently inside. Then, when returning from the horizontal posture to the supine position, the head easily enters the groove again, and can easily return to the posture in the supine position. Further, as the head rotates outward, the tip of the elastic piece 18a between the V grooves gradually touches the face, which also gently suppresses the head from going outward.
In addition, many V-grooves 18 have a shape like a tread pattern of a tire, and as the head moves outward, the upper surface 16 (that is, the tip surface of the elastic piece 18a) between the rising V-grooves is the head or It comes into contact with the face from the front, and the action of pushing back the movement of the head is expected.

As described above, since the head 21 is urged to be placed in the concave groove 11, the time during which the left and right protrusions on the rear surface of the user's skull are supported by the left and right inclined surfaces of the bottom portion 12 during sleeping is increased. Or the probability is expected to increase. And the support part of a head is pressed by the inclined surface, and some effects like acupressure are expected.
The attachment 13 can stretch the muscle of the neck that has been stiffened in daily operations such as computer operation or desk work.

(Second Embodiment)
“3. Others”
The cushion 24 shown in FIG. 3 has a different attachment from that of the cushion 10 shown in FIG. 1, and the configuration of other parts is the same. For this reason, an attachment and the site | part which attaches it are demonstrated, the same code | symbol is attached | subjected to the same part, and the description is abbreviate | omitted.
A substantially square notch 24a is formed at the front end of the bottom 12 of the cushion body 24c of the cushion 24. Further, a through hole 24b having the same shape is formed behind it. An attachment 25 is detachably attached to the notches 24a and the through holes 24b.
The attachment 25 has a leg portion 25a engaged with the notch 24a and a leg portion 25b fitted into the through hole 24b, and an upwardly protruding connecting portion 25c is connected so as to connect them. Is provided. The attachment 25 is an elongated rectangle in a plan view, and has a curved shape that protrudes most upward near the center. This effectively supports the neck cervical spine.

(Modification)
As mentioned above, although embodiment of the cushion for heads of this invention was described, this invention is not limited to these, A various change can be made within the scope of the invention.
For example, the attachments 13 and 25 can be attached and detached, and the attachments 13 and 25 can be removed and only the cushion main body can be used. Here, the cushion includes a cushion that does not have a notch and a through-hole and is not scheduled to be attached.
The attachments 13 and 25 may be provided integrally with the cushion body 10c.
Further, a plurality of attachments 13 and 25 having different shapes may be prepared and changed to different ones. For example, replace with a different height or width.

Moreover, you may make it suppress gently that a head goes outside by making the softness | flexibility of the hill part 15 hard gradually toward an outer side. For example, the depth of the V-groove 18 is gradually decreased toward the outside, and an interval between adjacent V-grooves 18 is provided.
Further, the width of the upper surface 16 may be reduced to increase the sense of discomfort given to the face, and to be prevented from going outside. In that case, the interval between the V grooves is narrowed or the angle of the V grooves is increased.
Further, the vicinity of the symbol B may not be the lower end but may be further inside or outside.

In addition to the U-shape (see FIG. 5a), the groove 11 has a symmetrical shape that can support the head from the left and right when dropping the head, and has a surface that is somewhat inclined toward the center. preferable.
Further, instead of the V-shaped groove 18, a rectangular groove or a U-shaped deep groove may be used. However, the V-shaped groove can be easily processed by cutting with a cutter. And a rectangular groove | channel and a U-shaped groove | channel may be employ | adopted and a hill part may be made somewhat hard. Or you may use those grooves partially. For example, a rectangular groove or a U-shaped groove is adopted outside the hill portion 15.

(Other embodiments)
In the cushion 26 shown in FIG. 4, a plate 27 made of a polymer material foam is laid on the bottom 12 of the central groove 11. And the notch 10a and the through-hole 10b of the cushion main body 10c of FIG. 1 are not formed. The rest is substantially the same as the cushion body 10c.
The plate 27 is fixed by an adhesive or heat welding. You may detachably fit. The plate 27 may be a pair of two plates, or a single plate may be bent. It may be formed in a V shape in advance. The plate 27 is harder than other parts and has a strong repulsive force. The rigidity of the plate 27 can be adjusted by selecting the foam density and the material.

(Related embodiment)
The cushion 30 shown in FIG. 5a is substantially the same as the cushion main body 10c of FIG. 1 except that the concave groove 11 is substantially arc-shaped, the V-groove 18 is not provided in the hill portion 15, and the notch 10a and the through hole 10b are not formed. Are identical. The cross-sectional shape of the ear receiving groove 17 has a shallow arc shape. Further, the upper surface 16 of the hill portion 15 is gently curved so as to protrude downward. Since the concave groove 11 has an arc shape, the cushion 30 functions to suppress and stabilize the rolling of the body portion. About another point, there exists an effect similar to the cushion 10 of FIG.

  Furthermore, a plate 28 made of a foam made of a polymer material harder than other portions may be detachably fitted or fixed in the substantially arcuate or semicircular concave groove 11. In that case, the same effect as the cushion 26 of FIG. 4 is produced. Further, a V-groove 29 similar to the bottom 12 of the concave groove 11 of the cushion 10 of FIG. 1 may be formed on the upper surface of the plate 28. In that case, the same operational effects as the cushion 10 are obtained. When the plate 28 is detachable, the usage form can be selected according to the user's preference and the like.

  The cushion 32 shown in FIG. 5b has a cushion main body 10c except that the upper surface 16 of the hill portion 15 extends substantially straight and the notch 10a and the through hole 10b are not formed as in the cushion main body 10c of FIG. Is substantially the same.

(Other variations)
In addition, for example, a protrusion or a ridge that supports the acupressure point of the head may be provided on the bottom 12 of the concave groove 11 of the cushion 10 of FIG. Similar protrusions or protrusions can be provided on the plate 27 of the cushion 26 of FIG. 4 and the plate 28 of the cushion 30 of FIG. 5a. Further, in addition to making the bottom surface of the cushion a flat surface, a concave groove may be formed for the purpose of providing air permeability or enhancing the cushioning property. Moreover, in order to fix to the front surface of the upper part of a sofa or an easy chair, you may provide fixing means, such as a hook-and-loop fastener, in the bottom face.

DESCRIPTION OF SYMBOLS 10 Cushion 10a Notch 10b Through-hole 10c Cushion main body 11 Concave groove 12 Bottom part 13 Attachment 13a Front leg part 13b Rear leg part 13c Connection part 13d Space 14 Standing wall 15 Hill part 16 Upper surface 17 Ear accommodation groove 18 V groove 18a Elastic piece 19a Imagination Line 19b Imaginary line 20 Bag 21 Head 21a Horizontal head 21b Earlobe 22 Rear surface 23 Shoulder 24 Cushion 24a Notch 24b Through hole 24c Cushion body 25 Attachment 25a Front leg 25b Rear leg 25c Connection part 26 Cushion 27 Plate 28 Plate 29 V groove 30 Cushion 31 Plate 32 Cushion B Lower end

Claims (5)

It consists of a foam with elasticity,
A concave groove for placing the head on the center of the upper surface is formed, and hills are formed on the left and right of the concave groove,
The top surface of the lands of the left and right, the plurality of deep groove is formed extending in the back and forth groove substantially parallel Rutotomoni, and between the deep grooves adjacent to each other is an elastic piece,
A cushion for a head, wherein the upper surfaces of the left and right hills are formed on gently sloping surfaces or curved surfaces that rise toward the left and right ends.   The head cushion according to claim 1, wherein an ear receiving groove for receiving an earlobe when the user faces sideways is formed in a part of the upper surface of the left and right hill portions at a distance from the concave groove. .   The head cushion according to claim 1 or 2, wherein a bottom portion of the concave groove has a substantially V-shaped cross-sectional shape supporting the vicinity of a rear projection of the head.   The head cushion according to claim 1, wherein a protrusion that supports the neck is provided at the bottom of the concave groove.   The head cushion according to any one of claims 1 to 4, wherein the deep groove is a V-groove, and the width of the upper surface of the elastic piece is 1 to 10 mm.

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