JP7158028B2 - head rest and chair - Google Patents

Description

The present invention relates to a headrest and a chair on which the head of a human body is placed.

Conventionally, pillows on which the human head rests are attached to reclining tables used in, for example, medical facilities and barbershops, or attached to chairs as headrests. As a technique for stabilizing the position of the head using such a pillow or headrest, for example, there is an ophthalmic pillow described in Patent Document 1 below.

This ophthalmic pillow is composed of substantially columnar side pillows arranged in parallel at intervals. Each side pillow has a flat surface on the opposite side in the length direction, a core material made of a hard elastic material such as polyurethane foam, and a coating material covering the core material made of a soft elastic material such as cotton. .

Japanese Utility Model Publication No. 48-36396

However, in the above-described ophthalmic pillow, the surfaces of the side pillows facing each other are formed flat in the longitudinal direction, so that they come into contact with the placed head at points. Therefore, the restraint force on the head is weak, and the stability of the head is lacking. In the above-described ophthalmic pillow, the core material is a hard elastic material such as polyurethane foam, and the covering material covering the core material is a soft elastic material such as cotton. As a result, it can be difficult to bond, which can lead to long manufacturing times and high manufacturing costs.

The present invention has been proposed in view of the above circumstances. In other words, it is an object of the present invention to provide a headrest and a chair that can stabilize the restraint of the head and that can be manufactured in a short period of time and at low cost.

In order to achieve the above object, a head mounting device according to the present invention is arranged facing each other with a space of a width that does not hit the center of the back of the head on which it is placed, and has inner sides that are inclined in directions away from each other. a rising portion, and an outer rising portion disposed on the side opposite to the side facing the inner rising portion, connected to a tip portion of the inner rising portion, and separated from the inner rising portion on the lower side; A first placement tool having one of the inner rising portions and one of the outer rising portions, and a second placing tool having the other of the inner rising portions and the other of the outer rising portions are separated from each other by the distance. When viewed from the side on which the head is placed, the inner rising portion is formed to be curved in a concave arc shape, and the tip portion is formed to be curved when viewed from the side of the head. The inner rising portion and the outer rising portion are elastic bodies, and when the head is placed, the center of the occipital region does not come into contact with either due to the space of the distance. , the inner rising portion bends and sinks every inner rising portion.
In addition, the head rest is arranged facing each other with a space therebetween, and a pair of inner rising portions inclined in directions away from each other is arranged on the side opposite to the side where the respective inner rising portions face each other. and an outer rising portion to which the tip end portion of the inner rising portion is connected, and each of the inner rising portions is curved in a concave arc shape when viewed from the direction in which the inner rising portion rises, may be characterized in that the inner rising portion and the outer rising portion of are elastic bodies.

The head rest according to the present invention is characterized in that an inner side where the inner raised portion and the outer raised portion face each other is hollow.

The head rest may be characterized in that the thickness of the outer rising portion is formed thicker than the thickness of the inner rising portion.

The head rest according to the present invention is characterized by comprising an adjustment mechanism for adjusting the interval.

The head rest includes a first rest having one of the inner rising portions and one of the outer rising portions, and the other of the inner rising portions and the other of the outer rising portions. a base member provided with the first placement tool and the second placement tool; and the first placement tool and the second placement tool provided on the base member. and an adjustment mechanism for adjusting the distance between the

A chair according to the present invention is characterized by having a headrest.

The head rest according to the present invention has the structure described above. With this configuration, when the head of a human body is placed on the inner raised portion, the shape curved in a concave arc and the substantially spherical head are in almost planar contact, and the force of gravity acting on the head makes it elastic. Each part of the body bends. The head is covered by the inner raised portion and supported by the repulsive force of the elastic body. Therefore, the restraint of the head can be stabilized. In addition, since the tip portion is curved in a concave arc shape when viewed from the side of the head, the curved shape in the concave arc and the nearly spherical head are in almost plane contact, and the inner rising portion covered with a face. Therefore, the restraint of the head can be stabilized.

The head rest according to the present invention has a hollow inner side where the inner raised portion and the outer raised portion face each other. With this configuration, the resistance when each rising portion bends is alleviated by the hollow portion, and each rising portion bends appropriately along the head. Therefore, the restraint of the head can be stabilized. In addition, since no core member is required, it can be manufactured in a short period of time at low cost.

The head rest according to the present invention is an elastic body having uniform inner rising portions and outer rising portions due to the above configuration. Therefore, since it is not necessary to bond different materials together, it can be manufactured in a short period of time at low cost.

If the thickness of the outer rising portion is thicker than that of the inner rising portion, the inner rising portion is easily bent and the outer rising portion is hard to bend. Therefore, when the head is placed, the inner raised portion bends to a large extent and deforms along the entire back of the head. On the other hand, the outer rising portion bends less and supports the inner rising portion from the direction opposite to the bending direction of the inner rising portion. Therefore, it can fit the entire back of the head without losing its shape, and can stabilize the restraint of the head.

The head rest according to the present invention is provided with an adjustment mechanism for adjusting the spacing. With this configuration, the spacing is adjusted according to individual differences in head size. Therefore, the restraint of the head can be stabilized.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the head mounting apparatus which concerns on embodiment of this invention, (a) is an external perspective view, (b) is a transparent perspective view, (c) is a cross-sectional perspective view. It is a perspective view of the head mounting device according to the embodiment of the present invention, (a) is a plan perspective view viewed from the upper side in the height direction, and (b) is a bottom perspective view viewed from the lower side in the height direction. It is a diagram. BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the head mounting tool which concerns on embodiment of this invention, (a) is the perspective view seen from the back side of a length direction, (b) is a cross-sectional perspective view. It is a figure showing the head rest according to the embodiment of the present invention, (a) is a front view seen from the front side in the length direction, (b) is a plan view seen from the upper side in the height direction, (c) is the side view seen from the width direction. 1 is a diagram showing a first mounting device of a head mounting device according to an embodiment of the present invention, (a) is a plan view, (b) is a longitudinal cross-sectional side view of AA, (c) is a side view, ( d) is a rear view seen from the length direction, (e) is a rear view of a BB cross section, and (f) is a rear view of a CC cross section. It is a perspective view of the 1st mounting tool of the head mounting tool which concerns on embodiment of this invention, (a) is the plane perspective view seen from the upper side of a height direction, (b) is the downward direction of a height direction. Fig. 3 is a bottom perspective view viewed from the side; 1 shows a state of use of a head mounting device according to an embodiment of the present invention, wherein (a) is a cross-sectional explanatory view for explaining the state before the head is placed, and (b) is the head placed. It is cross-sectional explanatory drawing explaining a later state.

A head mounted device according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an external perspective view of a head mounted device 1 according to this embodiment, and FIG. 2 shows a perspective view of the head mounted device 1 according to this embodiment viewed from above and below in the height direction. 3 shows a perspective view of the head mounting device 1 according to the present embodiment as viewed from the rear side in the length direction, and FIG. 4 shows the head mounting device 1 according to the present embodiment. Shown from front, top and side.

In addition, in order to facilitate understanding of the present embodiment, in each mounting tool, the tip portion side in the height direction, which is the direction in which each rising portion rises, is defined as the upper side, and the foot side is defined as the lower side, and the respective rising portions face each other. The width direction, which is the direction, is defined as the side, the rear side of each rising portion in the length direction, which is the direction intersecting the height direction and the width direction, is defined as the front, and the front side is defined as the rear.

As shown in FIGS. 1 to 4, the head mounting device 1 includes a first mounting device 10 and a second mounting device 20 arranged substantially parallel to each other with an interval 25 therebetween. It comprises a base member 2 to which the placement tools 10 and 20 are attached, and an adjusting mechanism 5 attached to the base member 2 for adjusting the spacing 25 between the placement tools 10 and 20 (see FIG. 2). .

The first placement tool 10 and the second placement tool 20 are arranged to face each other with an interval 25 therebetween, and the inner rising portions 11 and 21 inclined in directions away from each other, and the inner rising portions 11 and 21 face each other. Outer raised portions 12, 22 arranged on the opposite side of the side to which the inner raised portions 11, 21 are connected with the tips 13, 23 of the inner raised portions 11, 21 in the height direction (upward direction), and the raised portions 11, 12, 21 , 22 facing each other in the longitudinal direction (front-rear direction) and connecting the longitudinal ends of the rising portions 11, 12, 21, 22 in the longitudinal direction (front-rear direction). 24. Each part 11, 12, 13, 14, 21, 22, 23, 24 is an elastic body such as urethane. Since the second placement tool 20 is symmetrical to the first placement tool 10 with respect to the spacing 25, only the first placement tool 10 will be described below, and the second placement tool 20 will be described. omitted.

Next, the first mounting tool 10 will be described with reference to the drawings. 5 and 6 show the first placement tool 10 of the head placement tool 1 according to this embodiment.

As shown in FIGS. 5 and 6, the first mounting tool 10 has a substantially pentagonal shape and is elongated in the length direction (front-rear direction). The side surfaces of the pentahedron are formed by arranging one (left side in FIG. 4) inner raised portion 11 and one (left side in FIG. 4) outer raised portion 12 facing each other. ing. An inner raised portion 11 formed in an arc shape and an outer raised portion 12 formed flat are connected at a tip portion 13 . The front and rear surfaces are formed by connecting the end connection portions 14 on one side (the left side in FIG. 4) to the ends of the rising portions 11 and 12 in the length direction (front and rear direction). A hollow portion 15 is formed inside where the inner rising portion 11 and the outer rising portion 12 face each other. A substantially rectangular plate-shaped support member 16 is attached to the lower portion.

As shown in FIG. 5 , the height of the first placement tool 10 is such that when viewed from the width direction (side), the side of the end connecting portion 14 in the length direction (front-rear direction) is the tip of the central side. While formed higher than the portion 13, the front end connecting portion 14 side is formed slightly higher than the rear end connecting portion 14 side. That is, the first placement tool 10 is formed in a substantially trapezoidal shape when viewed from the width direction (side), and the tip portion 13 is curved in a concave arc shape from the end connecting portion 14 side toward the center. It is

The first mounting tool 10 has an end connecting portion 14 and a cross section formed substantially in a fan shape when viewed from the length direction (front-rear direction). That is, when the first placement tool 10 is viewed from the length direction (front-rear direction), the inner raised portion 11 extends over the tip end portion 13 (toward the inner raised portion 21 of the second placement tool 20). ) are curved in a convex arc shape.

When viewed from the height direction (upward direction), the first mounting tool 10 has an inner raised portion 11 and a distal end portion 13 that are curved downward in a concave arc shape.

The first mounting tool 10 is formed such that the thickness of the outer raised portion 12 is thicker than the thickness of the inner raised portion 11 . The outer rising portion 12 is formed to be thicker in the upper portion than in the lower portion in the height direction (vertical direction).

Next, the base member 2 will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the base member 2 is composed of a base body portion 3 formed in a substantially rectangular plate shape and a base cover portion 4 attached to the base body portion 3 . A first placement tool 10 and a second placement tool 20 are arranged and attached substantially parallel to each other with a space 25 therebetween on the front side (upward direction) of the base body portion 3 . An adjustment mechanism 5 is attached to the back side (downward) of the base body portion 3, and the adjustment mechanism 5 is covered with the base cover portion 4 (see FIG. 1).

The adjustment mechanism 5 includes a movable portion (not shown) penetrating the base body portion 3 in the height direction (vertical direction) and connected to the support member 16, an operation portion 6 for operating the movable portion, and operating the movable portion. Interlocking portion (not shown). The operating portion 6 is arranged outside the base body portion 3 and connected to the interlocking portion and the movable portion via a shaft portion (not shown). By operating the operation part 6, the first placement tool 10 and the second placement tool 20 move closer to each other or separate from each other in conjunction with the movable part, and the first placement tool 10 and the second placement tool 20 is adjusted.

The head rest 1 is formed as described above.

Next, the operation of the head rest 1 will be described with reference to the drawings. FIG. 7 shows the state of use of the head rest 1 according to this embodiment.

As shown in FIG. 7, a human head 30 is arranged along the length direction (front-rear direction) of the head placement tool 1, and the head is placed on the first placement tool 10 and the second placement tool 20. The part 30 is placed. The entire back of the head comes into contact with the inner raised portions 11 and 21 . When the head 30 is placed on each of the inner rising portions 11 and 21, the inner rising portions 11 and 21 and the tip end portion 13 are curved downward in a concave arc when viewed from the height direction (upward direction). , 23 and the nearly spherical head 30 are in almost planar contact, and the force of gravity acting on the head 30 causes the inner rising parts 11 and 21 of the elastic body to bend downward (arrow 31). reference). The head 30 is covered by the inner raised portions 11 and 21 and supported by the repulsive force of the elastic body.

At the same time, the inner rising portions 11 and 21, which are thinner than the outer rising portions 12 and 22, are easily bent and are bent to a large extent. The shape of each of the inner rising portions 11 and 21 curved in a convex arc (toward the side facing the inner rising portion 21 of the mounting tool 20) is deformed into a concave arc along the shape of the head 30. As shown in FIG. On the other hand, the outer rising portions 12 and 22, which are thicker than the inner rising portions 11 and 21, are less likely to flex and flex less. The inner rising portions 11 and 21 are supported from the direction opposite to the direction 31 in which the rising portions 11 and 21 bend. The first placement tool 10 and the second placement tool 20 fit the head 30 without losing their shape, and the head 30 is stably restrained.

The adjustment mechanism 5 is operated to adjust the distance 25 between the first placement tool 10 and the second placement tool 20 according to individual differences in the size of the head 30 .

Next, the effects of the head rest 1 will be described.

As described above, in the head mounting device 1 according to the present embodiment, when viewed from the height direction (upward direction), the inner rising portions 11 and 21 and the distal end portions 13 and 23 are concave arcuate downward. is formed in a curved shape. With this configuration, when the head 30 is placed on each of the inner raised portions 11 and 21, the shape of each of the inner raised portions 11 and 21 and the tip portions 13 and 23 and the substantially spherical head 30 are substantially planar. , and the inner rising portions 11 and 21 of the elastic body bend downward due to the gravity acting on the head 30 (see arrow 31). The head 30 is covered by the inner raised portions 11 and 21 and supported by the repulsive force of the elastic body. Therefore, restraint of the head 30 can be stabilized.

In the head mounting device 1 according to this embodiment, hollow portions 15 are formed inside the inner raised portions 11 and 21 and the outer raised portions 12 and 22 of the respective mounting members 10 and 20 facing each other. With this configuration, the hollow portion 15 relieves resistance when the rising portions 11 , 12 , 21 , 22 bend, and the rising portions 11 , 12 , 21 , 22 bend appropriately along the head portion 30 . Therefore, restraint of the head 30 can be stabilized. In addition, since no core member is required, it can be manufactured in a short period of time at low cost.

In the head rest 1 according to this embodiment, the inner raised portions 11, 21, the outer raised portions 12, 22, the tip portions 13, 23, and the end connecting portions 14, 24 are elastic bodies. Therefore, since it is not necessary to bond different materials together, it can be manufactured in a short period of time at low cost.

In the head rest 1 according to this embodiment, the outer raised portions 12 and 22 are formed thicker than the inner raised portions 11 and 21 . The inner rising portions 11 and 21, which are thinner than the outer rising portions 12 and 22, are easy to bend and bend to a large extent. The shape of each of the inner rising portions 11 and 21 curved in a convex arc toward the side facing the rising portions 12 and 21 deforms into a concave arc shape along the shape of the head portion 30 . On the other hand, the outer rising portions 12 and 22, which are thicker than the inner rising portions 11 and 21, are less likely to flex and flex less. The inner rising portions 11 and 21 are supported from the direction opposite to the direction 31 in which the rising portions 11 and 21 bend. Therefore, it can be fitted to the entire back of the head without losing its shape, and the restraint of the head 30 can be stabilized.

The head rest 1 according to this embodiment is provided with an adjustment mechanism 5 for adjusting the spacing 25 . With this configuration, the spacing 25 is adjusted according to individual differences in the size of the head 30 . Therefore, restraint of the head 30 can be stabilized.

In addition, in other embodiments of the above-described embodiments, each mounting tool may not be formed with a hollow portion and may be evenly filled with an elastic body. In this case, an elastic body is used which is made of a material that can alleviate the resistance when each rising portion bends to the same extent as in the case where the hollow portion alleviates the resistance.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments. Various design changes can be made to the present invention without departing from the scope of the claims. The headrest is attached to the upper end of the backrest of a chair or the like and used as a headrest.

REFERENCE SIGNS LIST 1 head rest 2 base member 3 base main body 4 base cover 5 adjustment mechanism 6 operation part 10 first rest 11 inner rising part 12 outer rising part 13 tip part 14 end connecting part 15 hollow part 16 support Member 20 Second placing tool 21 Inner raised portion 22 Outer raised portion 23 Tip 24 End connecting portion 25 Spacing 30 Head 31 Deflection direction

Claims (4)

an inner rising portion, which is arranged to face the center of the occipital region on which the occipital region is to be placed, is arranged facing each other with a space of a width that does not hit the center of the occipital region, is inclined in a direction away from each other, and is on which the occipital region is placed ;
an outer rising portion disposed on the opposite side of the facing side of the inner rising portion, to which a tip portion of the inner rising portion is connected and which is separated from the inner rising portion on the lower side;
A first mounting device having one of the inner rising portions and one of the outer rising portions and a second mounting device having the other inner rising portion and the other outer rising portion are arranged so that the back of the head rests thereon. are placed and provided individually with the space of the interval,
The inner rising portion is curved in a concave arc shape when viewed from the side on which the head is placed, and the tip portion is curved in a concave arc shape when viewed from the side of the head,
the inner rising portion and the outer rising portion are elastic bodies,
When the back of the head is placed, the center of the back of the head does not touch anything due to the spacing space, and the inner risers flex and sink for each of the inner risers.
A head rest, characterized by: The inside facing the inner rising portion and the outer rising portion is hollow,
The head support according to claim 1, characterized in that: provided with an adjustment mechanism for adjusting the interval,
3. The head mount according to claim 1 or 2, characterized in that: Equipped with the head mount according to any one of claims 1 to 3,
A chair characterized by:

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