JP2016158685A - Pillow - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pillow that can hold a head in a suitable height even in any of lying on back and lying on side, and furthermore, can hold breathability.SOLUTION: A pillow has: a receiver body 1 where the outer circumference of a head back abutment part 4 and side head receiving face parts 5, 5 positioned to the left or right across the head back abutment part 4 are supported by an outer circumference strength part 6, the receiver body having a ventilating construction by a through-hole; a base body 2 facing each other to the receiver body 1; and a supporting leg for fixing the receiver body 1 to the base body 2. The head back abutment part 4 includes a central part stretching structure 22 capable of being set and transformed in a height h1 conformable at lying on back, and a central part return spring 26 for returning the head back abutment part 4 to a state before being set and transformed. The side head receiving face parts 5, 5 include an outer side stretching structure 23 capable of being set and transformed in a height h2 conformable at lying on side, and an outer side return spring 30 for returning the side head receiving face parts 5, 5 to a state before being set and transformed.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a pillow used at bedtime or the like, and the head is maintained at a suitable height and air permeability is maintained both when lying on its back and lying on its side after turning over. Related to the pillow.

  Pillows used at bedtime and the like using various materials are known. A generally known pillow is a granular pillow containing a cereal shell such as buckwheat husk, a cylindrical or foamed product made of synthetic resin, or wood chips inside a bag made of cloth or the like. There is. This granular pillow has the advantage that the height of the pillow can be adjusted by adjusting the amount of the granular material accommodated in the bag. Further, the granular pillow has an advantage that the position of the head is stabilized because the shape changes in conformity with the shape of the placed head.

  In addition, there is a cushion pillow containing soft fibers such as cotton and chemical fibers inside the bag. This cushion pillow is soft to the touch and has the advantage of providing a feeling of use that wraps around the head.

  Furthermore, there is a low resilience pillow containing a low resilience urethane foam inside the bag. This low resilience pillow has an advantage that the position of the head is stabilized because the shape changes along the shape of the placed head.

  Since the back and head are in contact with the floor when lying down, the shoulder and head are in contact with the floor when lying down, so the appropriate height when lying on the head is suitable for lying on the supine It is known that it is significantly higher than that. If the height of the pillow is too high or too low for the supine and lying down, not only will you not get good sleep, but it will also hurt your neck and shoulders and your airway will be compressed. It has been pointed out that it may cause apnea and snoring.

  There has been proposed a pillow whose height can be changed between when lying on its back and when lying down (see, for example, Patent Documents 1 and 2).

JP 2010-0669202 A JP 2011-189005 A

  Generally known pillows including pillows described in Patent Documents 1 and 2, pillows such as pillow pillows, low resilience pillows, etc., with a simple structure and suitable height for both lying down and lying down There is no pillow that can be held automatically. This is because not only a complicated mechanism is required to manufacture a pillow that automatically obtains a suitable height for supine and a suitable height for lying on the side, but a power source is not necessary. This is because there is a problem that the cost increases due to necessity, and there is a problem of failure.

  The pillow of Patent Document 1 is provided with an inclined partition wall inside the pillow case and filled with a core material inside the pillow case so that the height changes between when lying on the side and when lying down. However, in this pillow, it is necessary to carefully adjust the filling amount of the core material with respect to the height of the inclined partition wall, and there is a problem that the inclined partition wall hits the head if the filling amount of the core material is insufficient. On the other hand, when the filling amount of the core material is too large, there is a problem that the pillow becomes hard. Furthermore, both the height at the time of supine obtained by placing the head in the portion surrounded by the inclined partition wall and the height at the time of lying down when the head is placed at other positions are suitable. It is difficult to ensure that the conforming height when lying on the back and the suitable conforming height when lying on the side are maintained.

  Moreover, the pillow of the cited document 2 is made to obtain the height suitable for supine and the height suitable for lying by bringing the first movable core and the second movable core close to and away from each other. However, since this pillow adjusts the height of the pillow by a human hand, it is difficult to adjust the height of the pillow during sleep. Therefore, sleep is interrupted in order to adjust the height of the pillow, which is not preferable.

  Furthermore, generally known pillows including the pillows described in Patent Documents 1 and 2 do not have good air permeability. For this reason, there is a problem that the head in contact with the pillow has a hot feeling or sweats and gets wet.

  The present invention has been made in view of the problems of conventional pillows, and can hold the head at a suitable height both when lying on its back and lying on its back after turning over, Another object of the present invention is to provide a pillow that maintains air permeability.

The pillow according to the present invention has an outer periphery reinforcing portion on an outer periphery of a occipital region receiving surface portion and a lateral head receiving surface portion located on the left and right sides of the occipital region receiving surface portion, and is provided at least on the occipital region receiving surface portion and the occipital region receiving surface portion. A receiving body having a ventilation structure through the through-hole,
A base body facing the receiving body;
A support leg for fixing the outer peripheral strength portion of the receiving body to the base body so that the side head receiving surface portion is held at a suitable height when lying down;
When the head is placed on the back head receiving surface portion, the back head receiving surface portion can be deformed by extending in a radial direction with respect to the center of the back head receiving surface portion and sinking to a supine suitable height that is lower than the suitable height when lying down. The state before the occipital part receiving part is sunk and deformed by being compressed or extended by the deformation deformation of the central part and the occipital part receiving part provided, and when the head is retreated from the occipital part receiving part A central restoring spring to return to
When the head is placed on the temporal receiving surface, the temporal receiving surface is provided so that it can extend in the radial direction with respect to the center of the temporal receiving surface and sink to the height suitable for lying down and deform. The outer side stretchable structure and the temporal receiving surface portion are compressed or extended by the sinking deformation of the temporal receiving surface portion, and when the head moves away from the temporal receiving surface portion, the temporal receiving surface portion sinks by extending or contracting. An outer part restoring spring to return to the state before the deformation,
It is characterized by having.

  In the pillow described above, the central stretchable structure and the outer stretchable structure are bent portions obtained by bending the occipital receiving surface portion and the temporal receiving surface portion in a radial direction, and the bending height of the bent portion of the central elastic structure. The height is larger than the bending height of the bent portion of the outer side stretchable structure.

In the pillow, the central portion restoring spring and the outer portion restoring spring are:
Provided between the lower surface of the back head receiving surface portion and the base body or between the lower surface of the side head receiving surface portion and the base body, and the head is placed on the back head receiving surface portion or the side head receiving surface portion When the head is retracted from the occipital surface receiving surface portion or the temporal head receiving surface portion, it is expanded to the state before the occipital surface receiving surface portion or the temporal head receiving surface portion is sunk and deformed. A push spring to push back,
It is attached to the support leg through the lower surface of the occipital head receiving surface portion or the lower surface of the temporal head receiving surface portion, and is extended by sinking deformation when the head is placed on the occipital head receiving surface portion or the temporal head receiving surface portion, When the head is retracted from the occipital receiving surface or the temporal receiving surface, it is either one of the pulling springs that contracts and pulls back to the state before the occipital receiving surface or the temporal receiving surface sinks and deforms. Good.

  In the pillow, when the head is placed on the occipital receiving surface portion and sinks and deforms, the base main body is elastically brought into contact with the occipital receiving surface portion to bring the occipital receiving surface portion to the height suitable for the supine position. A height retaining material is provided.

  In the pillow described above, the support leg is a fitting protrusion provided on one of the receiving body and the base body, and a fitting provided on the other of the receiving body and the base body to be fitted to the fitting protrusion. It can have a recess.

  The pillow may include a height adjusting member that is disposed between the fitting convex portion and the fitting concave portion and adjusts a height at which the receiving body is fixed to the base body.

  In the pillow, the receiving body is formed by a center receiving portion by a middle portion in the left-right direction of the outer peripheral strength portion having the rear head receiving surface portion and an end portion in the left-right direction of the outer peripheral strength portion having the side head receiving surface portion. The center receiving part and the outer receiving part can be fixed to the base body by independent supporting legs.

  The said pillow can be equipped with the breathable coating | covering material which covers the said receiving body at least.

  According to the pillow of the present invention, it is possible to obtain an excellent effect that the head is held at a suitable height both in the supine position and in the lying position, and the air permeability is maintained.

It is a front view which shows the whole shape of the pillow of this invention. It is the top view which looked at FIG. 1 from the AA direction. It is the top view which looked at FIG. 1 from the BB direction. It is the top view which expanded and showed the left half of FIG. It is sectional drawing which looked at FIG. 4 from CC direction. It is sectional drawing which looked at FIG. 4 from DD direction. It is a top view which shows the shape of the fitting convex part which comprises a support leg. It is sectional drawing which looked at FIG. 7a from the J direction. It is sectional drawing which shows the structure of the height adjustment member with which the support pillar was equipped. It is sectional drawing of the height adjustment member of a different structure from the height adjustment member shown to FIG. 8a. It is sectional drawing of the fixed structure which looked at FIG. 4 from the E direction. It is sectional drawing which looked at FIG. 4 from the FF direction. It is sectional drawing which looked at FIG. 4 from the GG direction. It is sectional drawing which looked at FIG. 4 from the HH direction. It is sectional drawing which shows the structure of the center part restoring spring different from FIG. It is a top view which shows another example of a shape of the center part expansion-contraction structure and outer part expansion-contraction structure with which a back head receiving surface part and a temporal head receiving surface part are equipped. It is sectional drawing which looked at FIG. 14a from the KK direction. It is a top view which shows another example of a shape of the center part expansion-contraction structure and outer part expansion-contraction structure with which a back head receiving surface part and a temporal head receiving surface part are equipped. It is sectional drawing which looked at FIG. 15a from the LL direction. It is a top view which shows another example of a shape of the center part expansion-contraction structure and outer part expansion-contraction structure with which a back head receiving surface part and a temporal head receiving surface part are equipped. It is sectional drawing which shows the state which looked at the structure of the center part restoring spring and outer part restoring spring different from the structure shown in FIGS. 10-13 from CC direction of FIG. It is sectional drawing which shows the state which looked at the structure of the center part restoring spring and outer part restoring spring of FIG. 17 from the FF direction of FIG. It is a top view which shows arrangement | positioning of the center part restoring spring of FIG. 17, FIG. 18, and an outer part restoring spring. It is a top view which shows the structure which divided | segmented the receiving main body into plurality. It is a front view which shows the structure which covered the pillow with the coating | covering material. It is a top view of FIG.

  1 is a front view showing the overall shape of the pillow 100 of the present invention, FIG. 2 is a plan view of FIG. 1 viewed from the AA direction, and FIG. 3 is a plan view of FIG. 1 viewed from the BB direction. The pillow 100 according to the present invention includes a receiving body 1 having a substantially rectangular shape whose planar shape is long in the left-right direction X, a base body 2 having the same shape as the receiving body 1, and the receiving body 1 as the base. It has a plurality of support legs 3 that are fixed to the main body 2 while maintaining a fixed height L1. The receiving body 1, the base body 2, and the support legs 3 constituting the pillow 100 can be formed of synthetic resin.

  As shown in FIG. 2, the receiving body 1 has a occipital head receiving surface portion 4 and side head receiving surface portions 5, 5 positioned on the left and right sides of the occipital head receiving surface portion 4, and the occipital head receiving surface portion 4. And the outer periphery intensity | strength part 6 is provided in the outer periphery of the temporal part receiving surface parts 5 and 5. FIG. The front side of the receiving body 1 in the front-rear direction Y is a straight line extending in the left-right direction X. On the other hand, the rear side of the receiving body 1 in the front-rear direction Y is bent backward in the middle of the left-right direction X. And it is a curved curve.

  As shown in FIGS. 1 and 5, a reinforcing belt portion 7 that is curved and extends downward is formed on the peripheral edge portion of the outer peripheral strength portion 6. The outer peripheral strength portion 6 having the reinforcing belt portion 7 is The strength against the bending of the plane of the receiving body 1 is maintained.

  As shown in FIG. 2, the rear head receiving surface portion 4 and the side head receiving surface portions 5, 5 are provided with a plurality of through-holes 8, and a ventilation structure through which the receiving body 1 can vent in the vertical direction. have. Further, the through-hole 8 can be provided in the outer peripheral strength portion 6.

  As shown in FIGS. 2 and 3, the support legs 3 for fixing the receiving body 1 to the base body 2 are provided on the front and rear sides in the front-rear direction Y of the outer peripheral strength portion 6. A total of eight support legs 3a, 3b, 3c, 3d, 3a ′, 3b ′, 3c ′, and 3d ′ are provided so as to surround each of the surface portions 5 and 5 in a substantially quadrangular shape. 2 and 3, the front support legs 3a, 3b, 3a ', 3b' are arranged in a straight line in the left-right direction X, whereas the support legs 3d, 3d 'on the rear side in the left-right direction X are The support legs 3c and 3c ′ on the outer side in the left-right direction X are arranged on the rear side. In addition, the distance between the support legs 3d and 3d 'on the rear side in the left and right direction X is narrower than the distance between the support legs 3b and 3b' on the inner side in the left and right direction X on the front side. Therefore, the center O1 of the occipital head receiving surface part 4 is located on the rear side with respect to a line connecting the centers O2 of the left and right side head receiving surface parts 5 and 5.

  As shown in FIGS. 3 and 10, the base body 2 is arranged so as to intersect with an annular outer peripheral belt portion 9 having a width in the vertical direction forming the outer peripheral portion of the base main body 2, and the inner side of the outer peripheral belt portion 9. The plurality of reinforcing beam portions 10 are provided. The outer peripheral belt portion 9 and the reinforcing beam portion 10 have the same height. The support leg 3 is provided at a portion of the base body 2 where the reinforcing beam portion 10 intersects.

  In FIG. 3, the reinforcing beams 10 are used between the support legs 3a, 3b, 3b ′, 3a ′ arranged in the left-right direction X and between the support legs 3c, 3d, 3d ′, 3c ′. It is connected. Further, the support legs 3c, 3d, 3d 'and 3c' facing each other in the front-rear direction Y with respect to the support legs 3a, 3b, 3b 'and 3a' are connected by the reinforcing beam portion 10. Further, between the support legs 3a and 3d located diagonally, between the support legs 3b and 3c, between the support legs 3a ′ and 3d ′, between the support legs 3b ′ and 3c ′, and between the support legs 3b and 3d ′. The support legs 3b 'and 3d are connected by the reinforcing beam portion 10 respectively. The reinforcing beam portion 10 that connects the support legs 3a, 3b, 3c, 3d, 3a ′, 3b ′, 3c ′, and 3d ′ to each other is more than the reinforcing beam portion 10 and the outer peripheral belt portion 9 that are arranged elsewhere. The thickness is thick. The base main body 2 has strength against bending of a plane by the outer peripheral belt portion 9 and the reinforcing beam portion 10.

  4 is an enlarged plan view of the left half of the pillow 100 of FIG. 1, FIG. 5 is a cross-sectional view of FIG. 4 viewed from the CC direction, and FIG. 6 is a cross-section of FIG. 4 viewed from the DD direction. FIG. 5 and FIG. 6 show the structure of the support leg 3. As shown in FIGS. 5 and 6, the support leg 3 is formed integrally with the outer peripheral strength portion 6 of the receiving body 1 and protrudes toward the base body 2 side, and the base fitting protrusion 11 and the base It has a cylindrical fitting recess 12 that is formed integrally with the main body 2, protrudes toward the receiving body 1, and fits into the fitting protrusion 11.

  The fitting recess 12 is provided with a step portion 13 for restricting the fitting depth when the fitting convex portion 11 is fitted, and the support leg 3 whose fitting depth is restricted by the step portion 13. Thus, the receiving body 1 is held at the fixed height L1. Due to this fixed height L1, when the head is placed on the temporal receiving surface portions 5 and 5 and sinks and deforms, the side receiving portions 5 and 5 and the bottom surface of the base body 2 are adapted when lying down. The height h2 is maintained. A rib 12 ′ (see FIG. 1) for increasing the strength against bending of the support leg 3 can be provided between the fitting recess 12 of the base body 2 and the reinforcing beam portion 10.

  7A is a plan view showing the shape of the fitting convex portion 11 constituting the support leg 3, and FIG. 7B is a cross-sectional view of FIG. 7A seen from the J direction. The fitting convex portion 11 provided in the outer peripheral strength portion 6 is formed with a diaphragm-shaped portion 14 that is curved from the outer peripheral strength portion 6 and extends downward. The diaphragm-shaped portion 14 makes the receiving body 1 elastic. The outer periphery strength portion 6 can be deformed so as to be inclined with respect to the support leg 3. Further, a through-hole 8 ′ can be provided in the aperture shape portion 14 of the fitting convex portion 11. The receiving body 1 is more elastically supported by the support legs 3 by the through-holes 8 ′, and the outer peripheral strength portion 6 is easily tilted further. Breathability is improved.

  5 and 6, the case where the support leg 3 is formed by fitting the fitting convex portion 11 provided in the receiving body 1 and the fitting concave portion 12 provided in the base body 2 has been described. The main body 1 may be provided with the fitting concave portion 12, and the base main body 2 may be provided with the fitting convex portion 11. Alternatively, the receiving body 1 and the base body 2 may be provided with separate support legs 3, and the receiving body 1 and the base body 2 may be assembled together by the separate support legs 3.

  In addition, in FIG. 2, the case where the four support legs 3 are provided on the outer peripheral strength portion 6 so as to surround the left and right side head receiving surface portions 5, 5, respectively, but as shown by a two-dot chain line in FIG. 2, Support legs 15 may be additionally provided in the intermediate portion 6 ′ in the left-right direction X on the front and rear sides of the outer peripheral strength portion 6. FIG. 2 shows a case where a total of four additional support legs 15 are provided for each of the intermediate portions 6 ′ on the front and rear sides of the outer peripheral strength portion 6. The number is arbitrary.

  FIG. 8a shows a configuration in which a height adjusting member 16 is disposed between the fitting convex portion 11 and the fitting concave portion 12 constituting the support leg 3 so that the fixed height L1 shown in FIG. 5 can be adjusted. Show. The inner diameter of the fitting concave portion 12 shown in FIG. 8a is larger than the outer diameter of the fitting convex portion 11, and one end of the height adjusting member 16 is fitted to the outside of the fitting convex portion 11, The other end of the height adjusting member 16 is fitted inside the fitting recess 12. Further, a step portion 13 a for restricting the fitting depth of the height adjusting member 16 is formed on the outer surface of the fitting convex portion 11, while the height adjusting member is formed on the inner surface of the fitting concave portion 12. The step part 13b which regulates the fitting depth of 16 is formed.

  FIG. 8b shows a configuration different from the configuration in which the fixed height L1 shown in FIG. 8a can be adjusted. In FIG. 8b, the fitting convex having the same diameter with respect to the receiving body 1 and the base body 2 is shown. The parts 11 and 11 ′ are provided to face each other. Both ends of a tubular height adjusting member 16 are fitted to the outside of the fitting convex portions 11 and 11 ′, and the height adjusting member 16 is fitted to the outer surface of the fitting convex portions 11 and 11 ′. Step portions 13a and 13b for regulating the combined depth are formed. 8B shows the case where both ends of the height adjusting member 16 are fitted to the outside of the fitting projections 11 and 11 ′, but the fitting can be fitted to the inside of the fitting projections 11 and 11 ′. A diameter height adjusting member 16 may be provided, and further, stepped portions 13a and 13b for regulating the fitting depth of the height adjusting member 16 may be provided on the inner surfaces of the fitting convex portions 11 and 11 ′.

  8a and 8b, by selecting the length of the height adjusting member 16, the height of the receiving body 1 installed with respect to the base body 2 can be set to an arbitrary fixed height L1. By changing, it is possible to arbitrarily change the lying height H2 shown in FIG.

  FIG. 9 is a cross-sectional view of FIG. 4 as viewed from the E direction, and shows the structure of the fixing structure 17 that fixes the receiving body 1 to the base body 2. The fixing structure 17 forms a hooking portion 18 that curves downward and protrudes at a position in the vicinity of the supporting legs 3a, 3c, 3a ′, 3c ′ in the outer peripheral strength portion 6 of the receiving body 1. On the other hand, a connector 21 made of a spring material having a bent portion 19 in the middle and having hooks 20 at one end and the other end is provided. By hooking one hook 20 of the connector 21 to the reinforcing beam portion 10 of the base body 2, extending the connector 21 and hooking the other hook 20 to the hook portion 18, The base body 2 is elastically fixed by the spring force of the connector 21. The receiving body 1 and the base body 2 fixed by the connector 21 can be separated by removing the connector 21. On the other hand, when it is not necessary to separate the receiving body 1 and the base body 2, the fitting convex part 11 and the fitting concave part 12 shown in FIGS. 5 and 6 may be fixed with an adhesive or the like.

  As shown in FIG. 1 and FIG. 5, the end side in the left-right direction X of the outer peripheral strength portion 6 of the receiving body 1 fixed to the base body 2 by the support legs 3 has the head on the side receiving surfaces 5 and 5. The intermediate portion 6 ′ in the left-right direction X on the front side of the outer peripheral strength portion 6 is shown in FIG. 1 while being supported at a fixed height L 1 that can hold the lying height H 2 when placed. As shown, it has a low neck height L2 that curves downward to correspond to the height of the neck when supine.

  10 is a cross-sectional view of FIG. 4 viewed from the FF direction, FIG. 11 is a cross-sectional view of FIG. 4 viewed from the GG direction, and FIG. 12 is a cross-sectional view of 4 viewed from the H-H direction. As shown in FIGS. 11 and 12, the temporal receiving surfaces 5 and 5 have a slightly lower temporal height L3 than the outer peripheral strength portion 6 held at the fixed height L1 by the support legs 3. It has become. Here, the temporal height L3 of the temporal receiving surfaces 5 and 5 is inclined so as to be lower toward the rear side (right side in FIG. 11) than the front side (left side in FIG. 11). Yes. The reason why the temporal height L3 of the temporal receiving surfaces 5 and 5 is lower on the rear side than on the front side is that the left and right widths of the head expand from the temple portion toward the top of the head. ing. In other words, the center of the head and the spine are held substantially horizontally when lying on the side of the head receiving surfaces 5 and 5 inclined.

  On the other hand, as shown in FIG. 10, the occipital head receiving surface portion 4 is bent downward from the temporal head receiving surface portions 5 and 5 to have a occipital head height L4 slightly lower than the temporal head receiving surface portions 5 and 5. It has become. As shown in FIG. 12, the occipital head receiving surface portion 4 is curved and extends upward from the neck height L2 of the front intermediate portion 6 ′ of the outer peripheral strength portion 6 and then horizontally holds the occipital height L4. It extends to the rear side. In addition, although FIG. 10 demonstrated the case where the back head height L4 of the back head receiving surface part 4 was made low with respect to the side head height L3 of the above-mentioned head receiving surfaces 5, 5, the said head receiving surface part 5, The side head height L3 of 5 and the back head height L4 of the back head receiving surface portion 4 may be the same.

  As shown in FIGS. 10 and 12, when the head is placed on the back head receiving surface portion 4, the side head receiving surface portions 5, 5 are lying along the shape of the head when the head is placed on the back head receiving surface portion 4. The center part expansion / contraction structure 22 is provided so as to sink and deform to the adaptation height h1 in the supine position lower than the adaptation height h2.

  Further, as shown in FIGS. 10 and 11, when the head is placed on the temporal receiving surfaces 5, 5, the side receiving surfaces 5, 5 are lying along the shape of the head. The outer part expansion / contraction structure 23 is provided so as to sink to the matching height h2 and deform.

  The configuration of the central stretchable structure 22 and the outer stretchable structure 23 will be described.

  The through-hole 8 formed in the back head receiving surface part 4 and the side head receiving surface parts 5 and 5 shown in FIG. 4 shows a case of an oblong opening having a long length with respect to the width. The oblong opening 8a that is long in the left-right direction X of the receiving body 1 is adjacent to the front-rear direction Y of the receiving body 1 around the centers O1, O2 of the occipital receiving surface part 4 and the side head receiving surface parts 5, 5. A plurality of front and rear rows, a left and right row formed by adjoining the left and right direction X of the receiving body 1 and a plurality of left and right rows that are long in the front and rear direction Y of the receiving body 1, and the left and right direction X and the front and rear direction Y An oblong opening 8c that is long in the 45 ° direction is arranged in combination with a plurality of inclined rows that are formed adjacent to each other in the direction orthogonal to the 45 ° direction. Between the adjacent oblong holes 8a in the front and rear rows provided in the occipital receiving surface portion 4 and the temporal head receiving surface portions 5 and 5, between the adjacent oval ports 8b in the left and right rows, and the adjacent length of the inclined rows A crosspiece 24 exists between each of the circular openings 8c. The crosspieces 24 are provided radially in a substantially radial direction with respect to the centers O1 and O2 of the back head receiving surface portion 4 and the side head receiving surface portions 5 and 5, respectively. The cross-sectional shape of the crosspiece 24 can be any shape such as a plate shape, an elliptical shape, or a circular shape, but the top surface of the crosspiece 24 has a curved surface with no corners because it contacts the head. It is preferable.

  As shown in FIGS. 10 to 12, the crosspieces 24 provided in the occipital receiving surface 4 and the temporal receiving surfaces 5 and 5 are formed with bent portions 25 a and 25 b that are curved and protrude upward. As a result, the central part expansion structure 22 and the outer part expansion / contraction by the bent parts 25a and 25b extending radially in the radial direction with respect to the centers O1 and O2 on the occipital part receiving surface part 4 and the side head receiving surface parts 5 and 5 are provided. A structure 23 is provided. In FIG. 4, the width of the through-hole 8 and the width of the crosspiece 24 are 5 mm, and the maximum length of the through-hole 8 is 40 mm. The lengths of the bent portions 25a and 25b by the crosspiece 24 are shown in FIG. By setting the bending heights S 1 and S 2, the amount of expansion and contraction that can be expanded and contracted in the radial direction by the occipital receiving surface portion 4 and the temporal receiving surface portions 5 and 5 is determined. In addition, the width of the through-hole 8 and the width of the crosspiece 24 can be arbitrarily set, and the lengths of the bent portions 25a and 25b and the bent heights S1 and S2 can be arbitrarily set.

  When the head is placed on the back head receiving surface 4 and the side head receiving surfaces 5 and 5, the bent portions 25a and 25b formed on the crosspiece 24 in the left-right direction, the front-rear direction, and the 45 ° direction, respectively. Is stretched linearly, the occipital head receiving surface portion 4 and the temporal head receiving surface portions 5 and 5 extend in the radial direction and sink and deform. Further, when the head is withdrawn from the back head receiving surface portion 4 and the side head receiving surface portions 5 and 5, the back head receiving surface portion 4 is caused by the force that the bent portions 25 a and 25 b extending in the linear direction return to the original bent shape. And the temporal receiving surfaces 5 and 5 return to the state before sinking and deforming.

  Here, as shown in FIGS. 10 to 12, the bending height S <b> 1 of the bent portion 25 a formed in the crosspiece 24 of the back head receiving surface 4 is formed in the crosspiece 24 of the side head receiving surfaces 5 and 5. It is made larger than the bending height S2 of the bending part 25b to be performed. Therefore, the back head receiving surface portion 4 can be expanded and contracted by an expansion / contraction amount larger than the expansion / contraction amount of the temporal head receiving surface portions 5 and 5.

  The bending height S1 of the bending portion 25a and the length of the bending portion 25a formed in the crosspiece 24 of the central expansion / contraction structure 22 provided in the back head receiving surface portion 4 are set in advance, and the head is placed on the back head receiving surface portion 4. When placed, the deepest sinking portion exceeds the fitting height h1 when supine and sinks downward so that it can be deformed. In addition, the back head receiving surface part 4 should just be able to sink and deform | transform slightly exceeding the height h1 suitable for supine.

  Also, the bending height S2 of the bent portion 25b and the length of the bent portion 25b formed in the crosspiece portion 24 of the outer side stretchable structure 23 provided in the side head receiving surface portions 5 and 5 are set in advance. When the head is placed on the head receiving surfaces 5 and 5, the deepest sinking portion is set so as to be able to sink downward and deform beyond the adaptation height h <b> 2 when lying down. In addition, the temporal part receiving surface parts 5 and 5 should just be able to sink and deform slightly exceeding the height h2 suitable for recumbency. The supine adapted height h1 of the occipital receiving surface portion 4 may be approximately half (1/2) or less than the half adapted height h2 of the lateral head receiving surface portions 5 and 5. it can.

  When the head is placed on the back head receiving surface 4 and the side head receiving surfaces 5 and 5 and the sinking deformation is repeated, the bending of the bent portions 25a and 25b remains extended and cannot return to the initial bent shape. . For this reason, the back head receiving surface part 4 and the temporal head receiving surface parts 5 and 5 cannot return to the state before the initial sink deformation.

  For this reason, as shown in FIGS. 10 and 12, the occipital region receiving surface 4 is restored to the state before the occipital region receiving surface 4 is sunk and deformed when the head is retracted from the sunk and deformed occipital region 4. A central restoring spring 26 is provided. Further, the temporal receiving surface portions 5 and 5 are in a state before the temporal receiving surface portions 5 and 5 are sunk and deformed when the head is retracted from the sinking deformed temporal receiving surface portions 5 and 5. An outer portion restoring spring 30 for restoring is provided.

  The center restoring spring 26 shown in FIGS. 10 and 12 shows a case of a tapered pushing spring 26a having a tapered shape with a large upper diameter and a small lower diameter. As shown in FIGS. 2, 4, 10, and 12, the lower surface of the occipital head receiving surface portion 4 radiates from the center O <b> 1 of the posterior head receiving surface portion 4 in a radial direction so as to surround the upper end of the taper pushing spring 26 a. Four projecting portions 27 projecting downward at a distance are provided, and a positioning recess 28 in which the lower end of the taper pushing spring 26a is fitted is provided in the central portion of the base body 2. The taper push spring 26a is positioned by the protrusion 27 and the positioning recess 28. According to the taper pushing spring 26a, the base body 2 can be elastically supported in a range in which the center O1 of the lower surface of the back head receiving surface portion 4 is surrounded by a required diameter by an upper end having a large diameter.

  When the head is placed on the back head receiving surface portion 4, the back head receiving surface portion 4 sinks and deforms due to the extension of the bent portion 25a provided in the back head receiving surface portion 4, but at this time, the tapered push spring 26a Is compressed in accordance with the sinking deformation of the back head receiving surface portion 4. On the other hand, when the head is withdrawn from the back head receiving surface portion 4, the back of the head is caused by the return force of the extended bent portion 25a to return to the original bent shape and the force of the compressed taper spring 26a to extend. The receiving surface part 4 is pushed back to the state before sinking and deforming. Here, the taper pushing spring 26a is preset to a length that slightly pushes up the side head receiving surface portions 5 and 5 when the head is not placed. Further, the taper push spring 26a has a resilience so that when the head is placed on the occipital receiving surface 4, the occipital receiving surface 4 slightly sinks and deforms below the height h1 suitable for supine. It is set in advance.

  FIG. 13 shows another configuration of the central restoring spring 26 shown in FIG. 12, and shows a case where a plurality of coil pressing springs 26b having a constant diameter in the length direction are provided. As shown in FIGS. 4 and 13, a positioning convex portion 29 is provided in the vicinity of each of the four projecting portions 27 provided on the lower surface of the occipital receiving surface portion 4, as shown by a dashed line in FIG. Four coil pressing springs 26b are arranged between the positioning convex portion 29 and the accommodating portion 28a provided in the base body 2.

  10 and 11, the outer portion restoring spring 30 includes a coil pressing spring 30a having a constant coil diameter in the length direction between the lower surface of the temporal receiving surface portions 5 and 5 and the base body 2. The case where it provided is shown. The coil pressing spring 30a has a larger diameter than the coil pressing spring 26b so as to support the lower surfaces of the side head receiving surface portions 5 and 5 within a required range. As shown in FIGS. 2, 4, 10, and 11, a cylindrical positioning protrusion that fits inside the upper end of the coil pressing spring 30 a is formed on the lower surface of the center O 2 of the side head receiving surfaces 5 and 5. A positioning recess 32 is provided in the base body 2 at a position corresponding to the center O2 of the temporal receiving surface portions 5 and 5 in the base body 2 to be fitted to the outside of the lower end of the coil pressing spring 30a. Yes. The coil pressing spring 26 b is positioned by the positioning convex portion 31 and the positioning concave portion 32.

  When the head is placed on the temporal receiving surfaces 5 and 5, the bent receiving portions 5 a provided on the temporal receiving surfaces 5 and 5 extend to sink the temporal receiving surfaces 5 and 5. At this time, the coil pressing spring 30a is compressed as the temporal receiving surface portions 5 and 5 sink. When the head retreats from the side head receiving surface portions 5 and 5, due to the return force of the expanded bent portion 25b returning to the original bent shape and the force that the compressed coil pushing spring 30a tries to expand, The temporal receiving surfaces 5 and 5 are pushed back to the state before sinking and deforming. Here, the coil pushing spring 30a is set in advance to a length that slightly pushes up the temporal receiving surfaces 5 and 5 when the head is not placed. Further, when the head is placed on the temporal receiving surfaces 5 and 5, the coil pressing spring 30a is elastic so that the temporal receiving surfaces 5 and 5 sink to the appropriate height h2 when lying down. The force is set in advance.

  14a and 14b show another example of the shape of the center part expansion / contraction structure 22 and the outer part expansion / contraction structure 23 provided in the occipital region receiving surface part 4 and the side head receiving surface parts 5, 5. The occipital surface receiving surface portion 4 and the temporal region receiving surface portion 5 shown in FIG. 14 a have a plurality of annular connecting portions 33 having different diameters in the radial direction, and the space between the annular connecting portions 33 is radially extended. They are connected by an extending bar 34. A portion other than the annular connecting portion 33 and the crosspiece portion 34 is a through-hole 8. Then, as shown in FIG. 14b, bent portions 25a and 25b that are curved up and down in the radial direction are formed with respect to the back head receiving surface portion 4 and the side head receiving surface portions 5 and 5. Therefore, even if the back head receiving surface portion 4 and the side head receiving surface portions 5 and 5 are cut in any direction passing through the respective centers O1 and O2, bent portions 25a and 25b are formed as shown in FIG. 14b. Here, the bending height S1 of the bending portion 25a of the central expansion / contraction structure 22 provided in the occipital head receiving surface portion 4 is the bending height S2 of the bending portion 25b of the outer portion expansion / contraction structure 23 provided in the side head receiving surface portions 5 and 5. Set larger than.

  FIGS. 15 a and 15 b show still another example of the shape of the central expansion / contraction structure 22 and the outer expansion / contraction structure 23 provided in the occipital region receiving surface 4 and the temporal region receiving surface 5. In FIG. 15a, a plurality of through-holes 8 are formed in an annular shape at positions where the diameters of the occipital receiving surface part 4 and the temporal receiving surface part 5 are different in the radial direction. At this time, the size of the through-hole 8 can be arbitrarily set, and the shape of the through-hole 8 can be various shapes such as a triangle, a quadrangle, and an ellipse in addition to the illustrated circle. Then, as shown in FIG. 15b, bent portions 25a and 25b that are vertically curved in the radial direction are formed with respect to the occipital head receiving surface portion 4 and the temporal head receiving surface portions 5 and 5. Therefore, even if the back head receiving surface portion 4 and the side head receiving surface portions 5 and 5 are cut in any direction passing through the respective centers O1 and O2, bent portions 25a and 25b are formed as shown in FIG. 15b. Here, the bending height S1 formed in the bending portion 25a of the central expansion / contraction structure 22 provided in the back head receiving surface portion 4 is the bending height of the bending portion 25b of the outer side expansion / contraction structure 23 of the side head receiving surface portions 5 and 5. Set larger than S2.

  FIG. 16 shows still another example of the shape of the central expansion / contraction structure 22 and the outer expansion / contraction structure 23 provided in the occipital region receiving surface 4 and the temporal region receiving surface 5. The occipital surface receiving surface portion 4 and the temporal region receiving surface portion 5 shown in FIG. 16 include a plurality of annular coupling portions 33 having different diameters in the radial direction, and the annular coupling portions 33 are connected in the radial direction. A crosspiece 34 'is provided. The crosspiece 34 'provided in the radial direction is formed with bent portions 25a and 25b that are curved and extended in the radial direction on a horizontal plane. Accordingly, the occipital head receiving surface portion 4 and the temporal head receiving surface portions 5 and 5 are formed with bent portions 25a and 25b which are bent in a horizontal plane in any direction passing through the respective centers O1 and O2. Here, the bending height S1 in the horizontal plane of the bent portion 25a of the central stretchable structure 22 provided in the occipital receiving surface portion 4 is the horizontal plane of the bent portion 25b of the outer stretchable structure 23 provided in the temporal receiving surfaces 5 and 5. Is set to be larger than the bending height S2.

  As described above, the rear head receiving surface portion 4 and the side head receiving surface portions 5 and 5 of the receiving body 1 have the flexibility to sink and deform when the head is placed, and the durability against repeated deformation. Need to be.

  For the formation of the receiving body 1, a polypropylene resin (PP) having excellent flexibility can be used. The receiving body 1 only needs to have flexibility and shape retention strength. Therefore, the receiving body 1 is not limited to the synthetic resin forming the receiving body 1. The back head receiving surface portion 4 and the side head receiving surface portions 5 and 5 can have a thickness dimension smaller than the thickness dimension of the outer peripheral strength portion 6 so as to be able to be suitably deformed. Further, the bent portion 25a, The bending heights S1 and S2 of 25b and the length dimensions of the bending portions 25a and 25b are selected. On the other hand, the outer peripheral strength portion 6 needs to have a strength that does not greatly change its shape even if the head is placed on the back head receiving surface portion 4 and the side head receiving surface portions 5 and 5 and sinks and deforms. For this reason, the thickness dimension of the outer periphery strength part 6 and the vertical dimension of the reinforcing belt part 7 are determined.

  The base body 2 shown in FIG. 1 and FIG. 3 has a head placed on the back head receiving surface portion 4 and the side head receiving surface portions 5 and 5 of the receiving body 1 so that the load on the head is supported via the support legs 3. Even if it acts, it needs to have strength that does not change its shape. For this reason, in addition to the polypropylene resin (PP), the base body 2 is formed in various ways such as acrylonitrile / butadiene / styrene copolymer resin (ABS), unsaturated phenol resin (PF), polyethylene resin (PE), and the like. These synthetic resins can be used. The base body 2 only needs to have shape strength and durability. Therefore, the base body 2 is not limited to the synthetic resin forming the base body 2. In order to maintain the strength of the base body 2, the thickness dimension and the vertical dimension of the outer peripheral belt portion 9 and the reinforcing beam portion 10 are determined.

  For the height adjusting member 16 shown in FIGS. 8a and 8b, for example, silicon resin, polyurethane resin, polypropylene resin (PP) or the like having flexibility can be used. Since the height adjusting member 16 having flexibility can absorb the load by bending and deforming when an excessive load is applied to the receiving body 1, the fitting convex portion 11 and the fitting concave portion 12 break. The problem can be prevented.

  17 to 19 show a configuration different from the configuration of the center restoring spring 26 and the outer restoring spring 30 shown in FIGS. 10 to 12.

  17 to 19, a linear portion 35 is provided at the middle portion in the length direction, a coil portion 36 is provided in the vicinity of both end portions, and a tension spring 38 a having a hook portion 37 is provided at both end portions. An annular attachment 39 having a locking hole (not shown) for locking the hook portion 37 is provided at the upper end of the fitting recess 12 of the support leg 3. Then, as shown in FIG. 19, the pulling spring is provided between the support leg 3b and the support leg 3d ′ at the diagonal positions in the support leg 3 surrounding the back head receiving surface portion 4, and between the support leg 3d and the support leg 3b ′. It arrange | positions so that the linear part 35 of 38a may cross | intersect the lower surface of the back head receiving surface part 4. FIG. Then, the tension spring 38 a is extended to engage the hook portion 37 with the locking hole of the fixture 39. At this time, the linear portion 35 of the tension spring 38a passes through the guide groove 40 provided at the lower end of the protruding portion 27 protruding from the lower surface of the rear head receiving surface portion 4 as shown in FIGS. Provided. Accordingly, the pulling spring 38a acts to raise the back head receiving surface portion 4 upward via the protruding portion 27. As described above, the rear head receiving surface portion 4 is provided with the central restoring spring 26 by the tension spring 38a.

  Further, the support legs 3 arranged so as to surround the side head receiving surfaces 5 and 5 are positioned between the support legs 3a and 3d at diagonal positions, between the support legs 3b and 3c, and between the support legs 3a '. Between the support legs 3d ′ and between the support legs 3b ′ and 3c ′, the linear portion 35 of the tension spring 38b having the same configuration as the tension spring 38a is provided on the side receiving surfaces 5, 5 It is arranged so that it passes through the lower surface of. Then, the tension spring 38 b is extended to engage the hook portion 37 with the locking hole of the fixture 39. At this time, the linear portion 35 of the tension spring 38b has a guide groove 40 provided at the lower end of the positioning convex portion 31 projecting from the lower surface of the temporal receiving surface portions 5 and 5, as shown in FIGS. It is provided to pass. Accordingly, the pull spring 38b acts to pull up the temporal receiving surfaces 5 and 5 via the positioning convex portion 31. As described above, the outer side restoring springs 30 by the tension springs 38b are provided on the side head receiving surface parts 5 and 5, respectively.

  In the above description, the case where the hook portions 37 of the tension springs 38a and 38b are attached to the fixture 39 provided on the support leg 3 has been described. However, a fixed leg is provided on the base body 2 separately from the support leg 3. You may attach the hook part 37 of the said tension springs 38a and 38b to this fixed leg.

  When the head is placed on the occipital head receiving surface portion 4 of FIG. 18, the bent portion 25a provided on the occipital head receiving surface portion 4 expands, and the occipital head receiving surface portion 4 sinks and deforms. 38a is extended along with the deformation of the occipital receiving surface portion 4. On the other hand, when the head is withdrawn from the back head receiving surface portion 4, the back head receiving surface portion is obtained by the return force of the extended bent portion 25a to return to the original bent shape and the force that the extended tension spring 38a attempts to reduce. 4 is pulled back to the state before sinking and deforming. Here, the tension spring 38a has a length for slightly lifting the back head receiving surface portion 4 when the head is not placed. Further, when the head is placed on the back head receiving surface portion 4 and sinks and deforms, the pulling spring 38a has an elastic force so that the back head receiving surface portion 4 sinks and deforms slightly exceeding the height h1 suitable for supine. Is preset.

  Further, when the head is placed on the temporal receiving surfaces 5 and 5 in FIG. 18, the bent portion 25 b provided on the temporal receiving surfaces 5 and 5 is extended to extend the temporal receiving surface. 5 and 5 are sunk and deformed. At this time, the pulling spring 38b is extended along with the sunk deformation of the temporal receiving surfaces 5 and 5. On the other hand, when the head retreats from the side head receiving surface portions 5 and 5, due to the return force of the extended bent portion 25b to return to the original bent shape and the force that the extended tension spring 38b tries to reduce, The said side head receiving surface parts 5 and 5 are pulled back to the state before sinking and deforming. Here, the tension spring 38b has a length for slightly lifting the back head receiving surface portion 4 when the head is not placed. Further, when the head is placed on the side receiving surfaces 5 and 5 and sinks and deforms, the side receiving surfaces 5 and 5 sink and deform to the height h2 suitable for lying. Thus, the resilience is set in advance.

  A coil-shaped resin spring or a metal spring can be used for the center restoring spring 26 and the outer restoring spring 30, and a plate spring can be used in addition to the coil spring. In the above description, the case where one of the pressing springs 26a, 26b, 30a and the tension springs 38a, 38b is provided on the occipital receiving surface 4 and the temporal receiving surfaces 5, 5 is described. Any one of the push springs 26a and 26b and the tension spring 38a may be provided, and any one of the push spring 30a and the tension spring 38b may be provided on the side head receiving surfaces 5 and 5.

  10, 12, 13, and 18 are heights that limit the deformation so that the lowest part when the occipital receiving surface portion 4 sinks and deforms is held at the height h <b> 1. The structure which provided the holding material 41 in the said base main body 2 is shown. 10, 12, and 18, the height holding member 41 that elastically contacts the lower end of the projecting portion 27 provided on the lower surface of the back head receiving surface portion 4 when the back head receiving surface portion 4 sinks and deforms, Arranged in the accommodating portion 28 a provided on the outer periphery of the positioning recess 28 provided in the base body 2. In FIG. 13, a height holding member 41 is disposed in the accommodating portion 28a, and the height holding member 41 is formed by cutting out a positioning recess 28 'into which the lower end of the coil pressing spring 26b is fitted. . Since the height holding member 41 only needs to have elasticity and resilience, various rubbers, synthetic resins, and the like can be used, and the material for forming the height holding member 41 is not limited.

  Therefore, when the head is placed on the occipital receiving surface 4 and the occipital receiving surface 4 sinks and deforms, the lower end of the protrusion 27 provided on the lower surface of the occipital receiving surface 4 is elastically applied to the height holding member 41. Since the sink deformation is limited by the contact, the back head receiving surface portion 4 is always held at the height h1 suitable for the supine position.

  In addition, when the said side head receiving surface parts 5 and 5 sink and deform | transform by mounting of a head, the pushing force of the outer side restoring spring 30 which consists of the pushing spring 30a shown to FIG. 10, FIG. 17 is held at a suitable height h2 when lying on the side by the pulling force of the outer side restoring spring 30 comprising the pulling spring 38b shown in FIG. However, although not shown, the protrusion provided on the lower surface of the temporal receiving surfaces 5 and 5 when the temporal receiving surfaces 5 and 5 sink and deform with respect to the temporal receiving surfaces 5 and 5. The base main body 2 may be provided with a height holding material that elastically abuts on the base body 2 and holds the lying height h2.

  The receiving body 1 can be divided into a plurality of parts as shown in FIG. In FIG. 20, the receiving body 1 includes a central receiving portion 42 by an intermediate portion 6 ′ in the left-right direction X of the outer peripheral reinforcing portion 6 having the rear head receiving surface portion 4, and the outer peripheral reinforcing portion 6 having the side head receiving surface portions 5, 5. The structure is divided into outer receiving portions 43 and 43 by end portions in the left-right direction X. At this time, the outer receiving portions 43 and 43 are fixed to the base body 2 by the support legs 3, and the central receiving portion 42 is fixed to the base body 2 by another independent support legs 44. Further, the fixing structure for fixing the central receiving portion 42 and the outer receiving portions 43, 43 to the base body 2 at positions near the support legs 3, 44 of the central receiving portion 42 and the outer receiving portions 43, 43. 17 (FIG. 9) is provided.

  As shown in FIG. 20, when the receiving body 1 is divided into the center receiving part 42 and the outer receiving parts 43, 43, the central receiving part 42 and the outer receiving part are produced when the receiving body 1 is manufactured from synthetic resin. Therefore, the receiving body 1 can be manufactured using a small mold. Moreover, the center receiving part 42 and the outer receiving parts 43 and 43 can also be manufactured using different synthetic resins.

  In the above description, the receiving body 1, the base body 2, and the supporting legs 3 are formed of synthetic resin. However, at least a part of the receiving body 1, the base body 2, and the supporting legs 3 is made of fiber reinforced plastic or metal. Can be manufactured.

  In addition, at least one of the occipital head receiving surface portion 4 and the temporal head receiving surface portions 5 and 5 can be formed using a stretchable material. For example, it is possible to provide a stretchable body assembled in a net shape so that a through-hole is formed from a stretchable material such as a spring or rubber, and the outer periphery of this stretchable body can be fixed to the base body 2 via a fixed leg. Thus, when the back head receiving surface part 4 and the side head receiving surface parts 5 and 5 are formed of an elastic material, when the head is placed, it expands and sinks, and when the head moves away, it contracts and sinks. Since it acts so as to return to the state before being deformed, there is a possibility that the installation of the above-described center part restoring spring 26 and the outer part restoring spring 30 can be omitted.

  The pillow 100 of the present invention can be covered with a breathable covering material 45 shown in FIGS. 21 and 22 show a case where a covering material 45 that covers the receiving body 1 is provided. Since the covering material 45 is in contact with the head and the side of the face, it is preferable that the covering material 45 has a good touch and has air permeability and moisture absorption / release properties. The covering material 45 is made of cloth, non-woven fabric, paper, or the like. Can be used. A fixing material 46 made of rubber or string is attached around the covering material 45, and the fixing material 46 is arranged on the lower side of the receiving body 1 so that the covering material 45 is fastened to the receiving body 1. And fix. The covering material 45 may be fixed using a hook-and-loop fastener or the like. Further, the covering material 45 can be manufactured by using a stretchable cloth material so as to be able to follow the sink deformation of the back head receiving surface portion 4 in particular, or it can follow the sink deformation in a portion corresponding to the back head receiving surface portion 4. An expansion / contraction part using rubber or the like can be provided as possible.

  The covering material 45 may have a size that covers the entire pillow 100 including the receiving body 1 and the base body 2. At this time, it is preferable that the space between the receiving body 1 and the base body 2 is covered with a mesh material so as to achieve air permeability in the lower space of the receiving body 1. In addition, in the case of the pillow 100 used when the temperature is low, it is preferable to attach a covering material 45 that has heat retaining properties and covers the entire pillow 100.

  Further, since the side face receiving surface portions 5 and 5 are portions where the skin of the side face contacts, at least the upper surface of the covering material 45 corresponding to the side head receiving surface portions 5 and 5 is indicated by a two-dot chain line. Thus, a disposable sheet 48 having air permeability made of paper or nonwoven fabric may be attached. The pillow 100, the covering material 45, and the sheet 48 are preferably subjected to antibacterial processing.

  A dimension example of the pillow 100 of the present invention will be described.

  There have been various proposals for suitable heights for supine and recumbent pillows, but there are no pillows that can satisfy both the supine and recumbent heights at the same time. It is a uniform-height pillow manufactured to a uniform height between the height suitable for supine and the height suitable for lying. With the uniform height pillow, the user cannot sleep at the height of the pillow that the user is satisfied at both the supine and lying down, and a good feeling of use is not obtained.

  In order to solve the above-mentioned problems, among various reported human body dimensions, use a method to find the median value from the average value of adult males and the average value of adult females for shoulder width, head width, and front and back head length. Thus, an intermediate shoulder width value of 433 mm, an intermediate head width value of 155 mm, and an intermediate front and rear head length value of 184 mm were obtained. Furthermore, the generally known load on the head of an adult is about 5 kg, and the height of the portion where the head is closest to the floor at the time of supine is preferably 15 to 40 mm. The reference pillow was obtained by setting each dimension of the pillow 100 with reference to the height of the neck between 30 mm and 60 mm.

  The length dimension of the reference pillow in the left-right direction X is 470 mm, the width dimension in the front-rear direction Y is 180 mm at the left and right ends, and 190 mm in the middle part 6 ′ in the left-right direction X. The rear head receiving surface portion 4 is formed between an interval 180 mm between the front support legs 3 b and 3 b ′ and an interval 160 mm between the rear support legs 3 d and 3 d ′ in FIG. 2. The fixed height L1 from the bottom surface of the base body 2 to the top surface of the end portion in the left-right direction X of the outer peripheral strength portion 6 in the receiving body 1 was 55 mm. The neck height L2 from the bottom surface of the base body 2 to the upper surface of the intermediate portion 6 ′ on the front side of the outer peripheral strength portion 6 in the receiving body 1 was set to 35 mm. The inclined side head height L3 of the side head receiving surface portions 5, 5 is 50 mm on the front side and 45 mm on the rear side, and the back head height L4 of the back head receiving surface portion 4 is 40 mm. Then, the height dimension (thickness dimension) of the height holding member 41 in FIG. 10 is set so that the most suitable height h1 in the supine position of the most depressed part when the back head receiving surface part 4 is sunk and deformed is 18 mm. did. The outer portion restoring spring shown in FIGS. 10, 11, 17, and 18 so that the most suitable height h2 when lying down when the side head receiving surface portions 5 and 5 are sunk and deformed is 42 mm. 30 resilience was set. Further, the bending height S1 of the bent portion 25a of the central expansion / contraction structure 22 in the back head receiving surface portion 4 is about 5 mm, and the bending height S2 of the bending portion 25b of the outer side expansion / contraction structure 23 in the side head receiving surface portions 5 and 5 is It was about 2 mm.

  The above-mentioned standard pillow is based on the intermediate value of the dimensions of the adult human body and the average load on the head. In addition, there is a possibility that a good feeling of use may not be obtained for a user who is away from the average value.

  For this reason, a large pillow in which each dimension of the reference pillow based on the intermediate value and the average value is increased by 20%, for example, and a small pillow in which each dimension of the standard pillow is decreased by 20%, for example, were prepared. By preparing these three types of pillows, it will be possible to adapt well to most adults.

  The pillow 100 according to the present invention operates as follows.

  When using the pillow 100, in the planar shape shown in FIG. 1, it is set so that the side of the straight line that is long in the left-right direction X is in front and the side of the curve is in the rear. Then, when sleeping on the back, the head is placed on the back head receiving surface portion 4 of the pillow 100 in a posture in the back.

  At this time, since the most protruding portion of the occipital region is placed at the center O1 of the occipital region receiving surface 4 in FIG. 10, each bent portion 25a of the central expansion / contraction structure 22 provided in the occipital region receiving surface 4 has a load on the head. The rear head receiving surface portion 4 is extended to conform to the shape of the head and sinks and deforms. Then, the lower end of the projecting portion 27 provided on the lower surface of the occipital receiving surface portion 4 is brought into contact with the height holding member 41, so that sink deformation is limited. Retained.

  In a normal uniform-height pillow, the height of the head may be too high at the time of supine, but in the pillow 100 of the present invention, the head at the time of supine is always held at the height h1 suitable for supine. Can get good sleep. Further, the head placed on the rear head receiving surface portion 4 is softly held by the elasticity of the bent portion 25a and the central restoring spring 26, and further, the head is moved because it is elastically supported. be able to.

  When trying to change the posture of lying on the back from the posture in which the head is placed on the back of the head receiving surface 4 to the position of lying on the back, the central restoring spring 26 provided in the back of the head receiving surface 4 is Since it acts to push up, it becomes easy to turn over.

  When the head is placed on the temporal receiving surfaces 5 and 5, the bent portions 25 b of the outer stretchable structure 23 are extended by the load of the head, and the temporal receiving surfaces 5 and 5 are the shape of the head. Elongates along and sinks and deforms. At this time, the temporal receiving surfaces 5 and 5 are restrained from being deformed by the elastic force of the outer portion restoring spring 30 provided at the lower portion, and the temporal receiving surfaces 5 and 5 are held at the appropriate height h2 when lying down. The

  In a normal uniform-height pillow, the height of the head may be too low when lying down. However, in the pillow 100 of the present invention, the head when lying down is always held at the appropriate height h2 when lying down. Can get good sleep. Further, the head placed on the side head receiving surface portions 5 and 5 is softly held by the elasticity of the bent portion 25b and the outer portion restoring spring 30, and is further elastically supported. The head can be moved. In addition, when the head comes to the position of the back head receiving surface portion 4 again by turning over from the posture when lying on the side receiving surface portions 5 and 5 to the posture when lying down, The back head receiving surface portion 4 sinks and deforms due to the load on the head, and is held again at the height h1 when it is supine. At this time, even if the back of the head is placed with a slight shift from the center O1 with respect to the back of the head receiving surface 4, the back of the back of the head receiving surface 4 is deformed and the position of the back of the head is corrected in the direction of the center O1 of the back of the head receiving surface 4. Will come to be.

  Here, when the position of the head when turning over from the supine posture and lying down is investigated, the center of the head located at the center O1 of the occipital region 4 is about 100 to 140 mm. It turned out that it moved to the temporal receiving surface parts 5 and 5 by the distance of the front and back. Therefore, the head when turning over and lying down is always placed on the temporal receiving surfaces 5 and 5.

  Further, it has been found that the pillow 100 according to the present invention does not deform and sag at the height h1 suitable for the supine position even when a state in which the head is positioned on the occipital surface 4 in a lying position occurs. The shape of the head is a flat shape having a large front-rear head length with respect to the head width, and the temporal region having a small protrusion compared to the shape of the back head. Accordingly, since the load on the temporal region cannot act so as to push the center O1 of the occipital surface receiving surface portion 4, the occipital surface receiving surface portion 4 cannot sink and deform to the height h1 suitable for supine position. Further, when the load on the temporal region is applied to the boundary portion between the temporal receiving surface portions 5 and 5 and the occipital receiving surface portion 4, moment force and tensile force are applied to the bent portion 25a near the boundary of the occipital receiving surface portion 4. Therefore, the bent portion 25a is not easily extended, and the back head receiving surface portion 4 cannot sink and deform. Therefore, even if the temporal region is placed in a recumbent posture with respect to the occipital head receiving surface portion 4, the head portion is held at the approximate height h2 when lying down.

  According to the pillow 100 of the present invention, the air receiving structure is provided by the through-holes 8 provided in at least the occipital receiving surface 4 and the side receiving surfaces 5 and 5 of the receiving body 1, and further, Since a space is formed and air can pass therethrough, when the head is placed on the back head receiving surface portion 4 and the side head receiving surface portions 5 and 5, a feeling of air permeability is secured and the head becomes hot. And sweating and dampening are reduced. 10, 14 b, and 15 b shown in FIG. 10, FIG. 14 b, and FIG. 15 b, the central portion stretchable structure 22 and the outer portion stretchable structure are formed by the bent portions 25 a and 25 b curved in the vertical direction. 23, the head is supported in a state close to point contact, not surface contact. Furthermore, since a space is formed in the lower part of the receiving body 1, a case or the like containing a fragrance can be attached to the lower surface of the receiving body 1, thereby obtaining a relaxing effect at bedtime.

  In the pillow 100 of the present invention, by placing a towel or the like on the lower side of the pillow 100, the height H2 when lying on the side of the head receiving surfaces 5, 5 and the height h1 when adapting on the back of the back receiving surface 4 are increased. Adjustments can be made easily. Further, if the height h2 at the time of recumbency is not suitable for the user, the height adjusting member 16 provided on the support leg 3 shown in FIGS. It is possible to adjust the time-adapted height h2. In addition, when the supine conforming height h1 is not suitable for the user, the height (thickness) of the height holding member 41 provided in the base body 2 shown in FIGS. 10, 12, 13, and 18 is By changing to a different one, it is possible to adjust the height to the appropriate height h1 when supine.

  The shapes, structures, and materials of the receiving body 1, the base body 2, and the support legs 3 that constitute the pillow 100 of the present invention can be changed without being limited to the illustrations and the above description, and other departures from the gist of the present invention. Of course, various modifications can be made within the range not to be performed.

  The pillow of the present invention can hold the head at a suitable height both in the supine position and in the lying position, and since air permeability is maintained, a good feeling of use can always be obtained.

DESCRIPTION OF SYMBOLS 1 Receiving body 2 Base main body 3 Support leg 3a-3d Support leg 3a'-3d 'Support leg 4 Rear head receiving surface part 5 Side head receiving surface part 6 Outer periphery strength part 8 Through-hole 11 Fitting convex part 12 Fitting recessed part 16 Height Adjustment member 22 Central part expansion structure 23 Outer part expansion structure 25a Bending part 25b Bending part 26 Central part restoring spring 26a Taper pressing spring (pressing spring)
26b Coil push spring (press spring)
30 Outer part restoring spring 30a Coil pressing spring (pressing spring)
38a Pulling spring 38b Pulling spring 41 Height holding member 42 Center receiving portion 43 Outer receiving portion 44 Support leg 45 Covering material 100 Pillow h1 Suitable height h2 when lying on the back Suitable height S1 when lying on the side S2 Bending height S2 Bending height O1 Center O2 Center X Left / Right direction

The pillow of the present invention has an outer periphery strength portion on the outer periphery of the occipital region receiving surface portion and the occipital region receiving surface portion located on the left and right sides of the occipital region receiving surface portion, and is provided at least in the occipital region receiving surface portion and the occipital region receiving surface portion. A receiving body having a ventilation structure through the through-hole,
A base body facing the receiving body;
A support leg for fixing the outer peripheral strength portion of the receiving body to the base body so that the side head receiving surface portion is held at a suitable height when lying down;
When the head is placed on the back head receiving surface portion, the back head receiving surface portion can be deformed by extending in a radial direction with respect to the center of the back head receiving surface portion and sinking to a supine suitable height that is lower than the suitable height when lying down. The state before the occipital part receiving part is sunk and deformed by being compressed or extended by the deformation deformation of the central part and the occipital part receiving part provided, and when the head is retreated from the occipital part receiving part A central restoring spring to return to
When the head is placed on the temporal receiving surface, the temporal receiving surface is provided so that it can extend in the radial direction with respect to the center of the temporal receiving surface and sink to the height suitable for lying down and deform. The outer side stretchable structure and the temporal receiving surface portion are compressed or extended by the sinking deformation of the temporal receiving surface portion, and when the head moves away from the temporal receiving surface portion, the temporal receiving surface portion sinks by extending or contracting. An outer part restoring spring to return to the state before the deformation,
It is characterized by having.

In the pillow described above, the center part stretchable structure and the outer part stretchable structure are curved and projecting upward and curved in an annular manner around the centers of the back head receiving surface part and the side head receiving surface part, or the center. It is a bent portion that is curved up and down in an annular shape at the center, and the bent height of the bent portion of the central stretchable structure is larger than the bent height of the bent portion of the outer stretchable structure.

The receiving body 1 can be divided into a plurality of parts as shown in FIG. In Figure 20, the bearing main body 1, a central receiving portion 42 by the intermediate portion 6 'in the horizontal direction X of the outer strength portion 6 having a back head receiving face 4, the outer peripheral strength portion 6 having a temporal receiving face 5,5 The structure is divided into outer receiving portions 43 and 43 by end portions in the left-right direction X. At this time, the outer receiving portions 43 and 43 are fixed to the base body 2 by the support legs 3, and the central receiving portion 42 is fixed to the base body 2 by another independent support legs 44. Further, the fixing structure for fixing the central receiving portion 42 and the outer receiving portions 43, 43 to the base body 2 at positions near the support legs 3, 44 of the central receiving portion 42 and the outer receiving portions 43, 43. 17 (FIG. 9) is provided.

Claims (8)

An outer periphery reinforcing portion is provided on the outer periphery of the occipital head receiving surface portion and the lateral head receiving surface portion located on the left and right sides of the occipital head receiving surface portion, and a ventilation structure is formed by at least a through-hole provided in the occipital head receiving surface portion and the temporal head receiving surface portion. A receiving body having
A base body facing the receiving body;
A support leg for fixing the outer peripheral strength portion of the receiving body to the base body so that the side head receiving surface portion is held at a suitable height when lying down;
When the head is placed on the back head receiving surface portion, the back head receiving surface portion can be deformed by extending in a radial direction with respect to the center of the back head receiving surface portion and sinking to a supine suitable height that is lower than the suitable height when lying down. The state before the occipital part receiving part is sunk and deformed by being compressed or extended by the deformation deformation of the central part and the occipital part receiving part provided, and when the head is retreated from the occipital part receiving part A central restoring spring to return to
When the head is placed on the temporal receiving surface, the temporal receiving surface is provided so that it can extend in the radial direction with respect to the center of the temporal receiving surface and sink to the height suitable for lying down and deform. The outer side stretchable structure and the temporal receiving surface portion are compressed or extended by the sinking deformation of the temporal receiving surface portion, and when the head moves away from the temporal receiving surface portion, the temporal receiving surface portion sinks by extending or contracting. An outer part restoring spring to return to the state before the deformation,
A pillow characterized by comprising:   The central stretchable structure and the outer stretchable structure are bent portions obtained by bending the occipital receiving surface portion and the temporal receiving surface portion in a radial direction, and the bending height of the bent portion of the central stretchable structure is the outer side. The pillow according to claim 1, wherein the pillow is larger than the bending height of the bent portion of the elastic structure. The central portion restoring spring and the outer portion restoring spring are:
When the head is placed on the occipital receiving surface or the temporal receiving surface provided between the occipital receiving surface and the base main body or between the lower surface of the temporal receiving surface and the base main body. When the head is retracted from the occipital receiving surface portion or the temporal receiving surface portion, it is expanded and pushed back to the state before the occipital receiving surface portion or the temporal receiving surface portion is sunk and deformed. Spring,
It is attached to the support leg through the lower surface of the occipital head receiving surface portion or the lower surface of the temporal head receiving surface portion, and is extended by sinking deformation when the head is placed on the occipital head receiving surface portion or the temporal head receiving surface portion, When the head is withdrawn from the occipital region receiving surface or the temporal region receiving surface portion, it is either one of the pulling springs that shrinks and pulls back to the state before the occipital region receiving surface portion or the temporal region receiving surface portion sinks and deforms. The pillow according to claim 1 or 2, wherein   The base main body has a height that holds the occipital surface receiving surface portion at the height suitable for supine by elastically contacting the occipital surface receiving surface portion when the head is placed on the occipital surface receiving surface portion and sinks and deforms. The pillow according to any one of claims 1 to 3, further comprising a holding member.   The support leg has a fitting convex portion provided on one of the receiving body and the base main body, and a fitting concave portion provided on the other of the receiving body and the base main body and fitted to the fitting convex portion. The pillow according to any one of claims 1 to 4, wherein:   The height adjustment member which adjusts the height which is arrange | positioned between the said fitting convex part and the said fitting recessed part, and fixes the said receiving body with respect to the said base main body is provided. Pillow.   The receiving body includes a center receiving portion by a middle portion in the left-right direction of the outer peripheral strength portion having the occipital receiving surface portion, and an outer receiving portion by an end portion in the left-right direction of the outer peripheral strength portion having the temporal receiving surface portion. The pillow according to claim 1, wherein the central receiving portion and the outer receiving portion are fixed to the base body by independent supporting legs.   The pillow according to any one of claims 1 to 7, further comprising a breathable covering material that covers at least the receiving body.

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