JP7592243B2 - Bathtub pillow - Google Patents

Description

Aspects of the present invention generally relate to bathtub pillows.

Bathtub pillows are known that are installed in the bathtub so that bathers can rest their heads on them while bathing in comfort. Some of these bathtub pillows, such as those in Patent Document 1, have a storage space inside so that they can be installed while covering functional parts such as the water discharge device.

Because the bather's head rests on the bathtub pillow, it is preferable that at least the upper surface of the bathtub pillow be made of a relatively soft material with elasticity. However, if the entire bathtub pillow is made of a soft material, it may not be able to support the weight of the bather's head and may sag downward. In particular, with bathtub pillows that have internal storage space, downward sagging can cause the storage space to be unable to be properly maintained.

So, in the case of a bathtub pillow type that has an internal storage space, it is considered that the bathtub pillow is formed with a support part for supporting the weight of the bather's head, and a head rest part that is placed above the support part and has at least the upper surface made of a material that is softer than the support part.

When a bathtub pillow is formed with a support part and a head rest part, when removing the bathtub pillow from the bathtub for cleaning or the like, the worker is likely to grab the head rest part that forms the top surface and apply force upward to remove it. When this happens, the head rest part, which is made of a softer material than the support part, bends, and if this is repeated, there is a problem that the bending marks will be formed on the top surface of the head rest part. For this reason, it is desirable for a bathtub pillow with an internal storage space to be able to suppress deformation of the storage space without compromising cushioning properties, and to be able to suppress the appearance of fold marks on the top surface.

JP 2016-8428 A

The present invention was made based on the recognition of such problems, and aims to provide a bathtub pillow that can suppress deformation of the internal storage space without compromising cushioning properties, and can also suppress the appearance of creases on the top surface.

The first invention is a bathtub pillow that is installed in a bathtub and on which a bather's head can be placed, the bathtub pillow having a pair of side parts and a rear end part that connects the rear ends of the pair of side parts, a support part for supporting the weight of the bather's head, and a head rest part that is provided on the support part and forms an upper surface on which the bather's head is placed, and covers the upper part of the space between the pair of side parts, thereby forming a storage space for storing the functional parts of the bathtub together with the support part, the hardness of the head rest part is softer than that of the support part, and the connection line on the storage space side that represents the outer edge of the connection surface between the rear end part and the head rest part is curved with an inflection point.

According to this bathtub pillow, by forming the bathtub pillow with a hard support part and a soft head rest part, it is possible to suppress deformation of the storage space when the bather's head is placed on it without compromising the cushioning properties. And the connection line on the storage space side is curved with an inflection point. This makes it difficult for a worker to apply force from the front end of the head rest part made of a soft material to the connection line due to the "principle of leverage" when trying to remove the bathtub pillow from the bathtub by grabbing the front end of the head rest part made of a soft material and applying force upward. Therefore, compared to a case where a connection line is formed that extends linearly in the left-right direction, for example, it is possible to suppress the head rest part made of a soft material from bending significantly with respect to the support part at the connection line, which causes a crease on the upper surface of the head rest part. For example, by forming the connection line on the storage space side as a curve with an inflection point, it is possible to suppress bending at the same point with the connection line as a crease when the head rest part is repeatedly bent, compared to a straight connection line. For example, the bending point of the head rest part can be shifted back and forth. Therefore, even if the head rest part is repeatedly bent, it is possible to prevent large creases from appearing on the top surface of the head rest part. In this way, it is possible to provide a bathtub pillow that can prevent deformation of the internal storage space without compromising cushioning properties, and can prevent creases from appearing on the top surface.

The second invention is a bathtub pillow according to the first invention, characterized in that the vicinity of the center in the left-right direction of the connection line on the storage space side is located forward of the inflection point.

The head rest portion is easier to grasp and apply force to near the center in the left-right direction than the left-right ends, so there is a high possibility that a large force will be applied to the head rest portion. In addition, when the front end of the head rest portion is grasped near the center in the left-right direction of the storage space, the distance from the pair of side parts of the support part is longer, so the force of the "leverage principle" is more likely to be applied to the head rest portion than when other parts of the front end of the head rest portion are grasped. Therefore, by positioning the left-right center of the connection line on the storage space side forward of the inflection point as described above, it is possible to make it difficult for the force of the "leverage principle" with the connection line as the base point to be applied to the head rest portion, even when the head rest portion is grasped near the center of the storage space. This makes it possible to more reliably prevent the head rest portion from bending significantly with the connection line as the base point, which would cause a crease on the top surface of the head rest portion.

The third invention is a bathtub pillow according to the second invention, characterized in that the connection line on the storage space side has a curved portion that is curved so as to be convex toward the front side, and the apex of the curved portion is located near the center in the left-right direction of the connection line on the storage space side.

This bathtub pillow makes it less likely that the force caused by the "leverage principle" based on the connection line will be applied to the head rest section, even if the head rest section is gripped near the center of the storage space.

The fourth invention is a bathtub pillow according to any one of the first to third inventions, characterized in that at least a portion of the connection line on the storage space side is wavy.

With this bathtub pillow, at least a portion of the connection line has a wave shape, i.e., a shape with multiple inflection points and vertices that are nodes, so it is possible to more reliably prevent the head rest portion from bending too much and leaving large creases on the top surface of the head rest portion.

The fifth invention is a bathtub pillow according to any one of the first to fourth inventions, characterized in that at least a portion of the connection line on the storage space side is located forward of an imaginary line connecting the rear ends of the pair of side parts.

With this bathtub pillow, even when a worker tries to remove the bathtub pillow from the bathtub by grasping the front end of the head rest part, which is made of a soft material, and applying upward force, it is possible to make it less likely that force due to the "leverage principle" will be applied from the front end of the head rest part to the connection line.

According to this aspect of the present invention, a bathtub pillow is provided that can suppress deformation of the internal storage space without compromising cushioning properties and can suppress the appearance of creases on the upper surface.

FIG. 1 is a perspective view showing a bathtub and a bathtub pillow according to an embodiment of the present invention. FIG. 1 is a plan view showing a bathtub and a bathtub pillow according to an embodiment of the present invention. FIG. 1 is a perspective view showing a bathtub pillow according to an embodiment of the present invention; FIG. 2 is a bottom view showing a schematic diagram of a bathtub pillow according to an embodiment. FIG. 1 is a cross-sectional view showing a schematic diagram of a bathtub pillow according to an embodiment. FIG. 11 is a bottom view showing a schematic diagram of a modified example of the bathtub pillow according to the embodiment. FIG. 11 is a bottom view showing a schematic diagram of a modified example of the bathtub pillow according to the embodiment.

Hereinafter, an embodiment will be described with reference to the drawings. In the drawings, like elements are designated by like reference numerals, and detailed description thereof will be omitted as appropriate.
FIG. 1 is a perspective view showing a bathtub and a bathtub pillow according to an embodiment.
FIG. 2 is a plan view that illustrates a bathtub and a bathtub pillow according to an embodiment.
1 and 2, the bathtub pillow 10 is installed in a bathtub 100 that stores hot and cold water. The bathtub pillow 10 is used while attached to the bathtub 100, and allows a bather who has entered the bathtub 100 to place his/her head on it. In other words, the bathtub pillow 10 is attached to the bathtub 100 so as to support the bather's head.

The bathtub 100 comprises a bathtub body 102. The bathtub body 102 has an inner wall surface 104. The inner wall surface 104 has a backrest surface 106 that supports the back of the bather. Here, in this specification, the upper side as viewed from the bather with his/her back against the backrest surface 106 is referred to as "upper", the lower side as "lower", the front as "forward", the rear as "rear", the right side as "right side", and the left side as "left side".

The bathtub 100 is equipped with a functional unit 110. The functional unit 110 is provided on the upper end (rim surface) connected to the backrest surface 106. The functional unit 110 is, for example, a water discharge unit that discharges hot water toward the inside of the bathtub body 102. The functional unit 110 discharges hot water toward the front. The bathtub 100, for example, sucks up hot water stored in the bathtub body 102 using a pump (not shown), and discharges the sucked up hot water from the functional unit 110. In other words, the bathtub 100 circulates the hot water stored in the bathtub body 102. This allows hot water to be discharged from the functional unit 110 without overflowing from the bathtub body 102.

The functional unit 110, for example, discharges hot water toward the neck and shoulders of the bather who has his/her back resting against the backrest surface 106. This makes it possible, for example, to further warm the bather's neck and shoulders and to provide a massage effect to the bather's neck and shoulders, thereby further enhancing the relaxation effect during bathing.

The functional unit 110 has a slit-shaped water outlet 110a extending in the left-right direction. As a result, the functional unit 110 discharges water from the water outlet 110a in a band-shaped water flow extending in the left-right direction. The left-right length of the water outlet 110a is, for example, 20 cm or more. The left-right length of the water outlet 110a is, for example, longer than the average width of a human neck. This allows hot water to be appropriately applied to the neck and shoulders of a bather whose back is resting against the backrest surface 106. In addition, the left-right length of the water outlet 110a is, for example, shorter than the left-right width of the space inside the bathtub main body 102. This allows hot water to be appropriately discharged into the bathtub main body 102.

The functional unit 110 is not limited to a water discharge unit, but may be, for example, a lighting unit that irradiates light toward the hot and cold water in the bathtub body 102. The functional unit 110 may have, for example, a water discharge function that discharges hot and cold water, and a lighting function that illuminates the discharged hot and cold water. The functional unit 110 may be any device that is attached to the bathtub 100 and used.

The bathtub pillow 10 is attached to the upper end of the bathtub body 102, which is connected to the backrest surface 106. This allows the bather to take a bath with their back against the backrest surface 106 and their head on the bathtub pillow 10. In this way, the bathtub pillow 10 allows the bather to take a bath in a more relaxed position. This further enhances the relaxation effect when bathing.

The bathtub pillow 10 is attached to the upper end of the bathtub body 102 so as to cover the functional part 110 from above. When attached to the bathtub body 102, the bathtub pillow 10 covers at least a portion of the functional part 110. The bathtub pillow 10 allows the bather's head to be placed on it, while preventing the functional part 110 from being exposed to the outside. This prevents the deterioration of the aesthetic appearance of the bathtub 100 even when the functional part 110 is provided on the bathtub body 102. By providing the bathtub pillow 10 and the functional part 110 in the bathtub 100, it is possible to improve the relaxation effect and aesthetic appearance.

The bathtub pillow 10 has a pillow body 12 on which the bather's head can be placed, and an opening 14 provided on the front surface of the pillow body 12. As described above, the pillow body 12 is attached to the top end of the bathtub body 102, and covers the functional part 110 from above.

The pillow body 12 is attached to the top of the bathtub body 102, for example, by fitting or engaging with at least one of the bathtub body 102 and the functional part 110 from above. This makes it possible to prevent the pillow body 12 from moving left and right or forward and backward, for example, when the bather places his or her head on the pillow body 12. Therefore, the bather's head can be more appropriately supported.

When removing the bathtub pillow 10 from the bathtub body 102, for example, the pillow body 12 is grasped and an upward force is applied to release the fitting or engagement of the pillow body 12. This allows the bathtub pillow 10 to be removed from the bathtub body 102.

The opening 14 exposes a portion of the functional part 110 forward. In this example, the opening 14 exposes at least a portion of the water outlet 110a of the functional part 110 forward. The opening 14 is a slit-shaped opening extending in the left-right direction, similar to the water outlet 110a.

The hot water discharged from the functional part 110 is discharged into the bathtub body 102 through the water discharge port 110a and the opening 14. In other words, the opening 14 is an opening for draining the hot water discharged from the functional part 110. The bathtub pillow 10 and the functional part 110 discharge the hot water onto the neck and shoulders of the bather with their head resting on the pillow body 12. This can further enhance the relaxation effect.

The opening 14 is not limited to an opening for pouring hot and cold water. For example, if the functional part 110 is a lighting unit, the opening 14 is an opening for passing light emitted from the functional part 110. The opening 14 may be any opening that is provided on the front surface of the pillow body 12 and exposes a part of the functional part 110 forward.

FIG. 3 is a perspective view that illustrates a bathtub pillow according to an embodiment.
FIG. 4 is a bottom view that illustrates the bathtub pillow according to the embodiment.
FIG. 5 is a cross-sectional view that illustrates a bathtub pillow according to an embodiment.
3 and 4 are schematic diagrams showing the bathtub pillow 10 as viewed from below. Fig. 5 is a schematic diagram showing a cross section taken along line A1-A2 in Fig. 4.
As shown in FIGS. 3 to 5, the pillow body 12 of the bathtub pillow 10 includes a support portion 20 and a head rest portion 30.

The support portion 20 is a portion of the pillow body 12 that supports the weight of the bather's head. The support portion 20 has a pair of side portions 21, 22 and a rear end portion 24. The side portions 21, 22 extend, for example, in the front-to-rear direction. The side portion 22 is aligned with the side portion 21 in the left-to-right direction. The side portion 22 is also spaced apart from the side portion 21 in the left-to-right direction. Therefore, a space is provided between the side portions 21 and 22. The rear end portion 24 extends in the left-to-right direction and connects the rear ends of the pair of side portions 21, 22. In other words, the side portions 21, 22 are portions that extend forward from the left and right ends of the rear end portion 24 that extends in the left-to-right direction.

The head rest 30 is provided on the support 20 and forms an upper surface 32 on which the bather's head rests. The head rest 30 also covers the upper part of the space between the pair of side parts 21, 22, thereby forming a storage space 34 together with the support 20 for storing the functional part 110 of the bathtub 100. When the pillow body 12 is attached to the top end of the bathtub body 102, it stores the functional part 110 within the storage space 34.

The opening 14 is continuous with the storage space 34. In other words, the opening 14 exposes at least a portion of the storage space 34 forward. The head rest portion 30, for example, forms the storage space 34 and also forms an opening 14 on the front surface of the pillow body 12 that exposes at least a portion of the storage space 34 forward.

In this example, the left-right center of the storage space 34 is substantially the same as the left-right center of the pillow body 12. The left-right center of the storage space 34 may be shifted to the right or left of the left-right center of the pillow body 12.

The support part 20 and the head rest part 30 are made of a resin material such as polyurethane. The support part 20 and the head rest part 30 have elasticity. The hardness of the head rest part 30 is softer than the hardness of the support part 20.

The hardness of the support part 20 is, for example, about 60 degrees in Asker C hardness. The hardness of the head rest part 30 is, for example, about 40 degrees in Asker C hardness. This allows the head rest part 30 to provide cushioning when supporting the bather's head, and allows the support part 20 to properly support the weight of the bather's head. For example, compared to when the entire pillow body 12 is made of a soft material, deformation of the storage space 34 when supporting the bather's head can be suppressed. The hardness of the support part 20 is not limited to the above, and may be any hardness that can properly support the weight of the bather's head. The hardness of the head rest part 30 is not limited to the above, and may be any hardness that can provide appropriate cushioning when supporting the bather's head.

The connection line 42 on the storage space 34 side, which represents the outer edge of the connection surface 40 between the rear end 24 and the head rest 30, is curved and has an inflection point PI. The connection line 42 is, for example, curved and has multiple inflection points PI. In addition, at least a portion of the connection line 42 on the storage space 34 side extends, for example, forward of the rear end 24 and is located above the storage space 34. The support section 20 has a protrusion 26 that protrudes forward from the upper end of the rear end 24. The protrusion 26 is located above the storage space 34 and is in contact with the head rest 30. This allows at least a portion of the connection line 42 to be located above the storage space 34, as described above.

At least the vicinity of the left-right center of the connection line 42 on the storage space 34 side is located forward of the inflection point PI. At least the vicinity of the left-right center of the connection line 42 on the storage space 34 side is located above the storage space 34. In other words, the connection line 42 is located above the storage space 34 at least near the left-right center of the storage space 34. The protrusion 26 is provided near the left-right center of the storage space 34. At least a portion of the protrusion 26 is located at the left-right center of the storage space 34. Thereby, as described above, at least the vicinity of the left-right center of the connection line 42 on the storage space 34 side can be located forward of the inflection point PI. At least the vicinity of the left-right center of the connection line 42 on the storage space 34 side can be located above the storage space 34.

Here, the connection line 42 on the storage space 34 side refers to, for example, the portion of the connection line 42 that appears within the storage space 34, of the connection line 42 that appears around almost the entire circumference of the pillow body 12. Also, the vicinity of the left-right center of the connection line 42 refers to, for example, the central portion of the connection line 42 divided into three parts in the left-right direction. The vicinity of the left-right center of the connection line 42 includes, for example, at least a range of 6 cm in total, 3 cm to the right of the left-right center and 3 cm to the left of the left-right center. The same explanation as for the connection line 42 applies to the vicinity of the left-right center of the storage space 34.

The connection line 42 on the storage space 34 side has a curved portion 42a that is curved in an arc shape so as to be convex toward the front side. In other words, the front end 26a of the protrusion 26 is curved in an arc shape so as to be convex toward the front side when viewed from above. The shape of the front end 26a of the protrusion 26 when viewed from above is, for example, semicircular.

The apex portion 42b of the curved portion 42a is provided near the center in the left-right direction of the connection line 42 on the storage space 34 side. The apex portion 42b is located, for example, forward of the center CL of the storage space 34 in the front-rear direction. Also, the apex portion 42b is located, for example, rearward of the front end 30a of the head rest portion 30 (the front end of the pillow body 12). That is, the apex portion 42b is provided between the center CL of the storage space 34 in the front-rear direction and the front end 30a of the head rest portion 30. In other words, at least a part of the front end of the connection line 42 is provided between the center CL of the storage space 34 in the front-rear direction and the front end 30a of the head rest portion 30. For example, the center vicinity of the front end of the connection line 42 is provided between the center CL of the storage space 34 in the front-rear direction and the front end 30a of the head rest portion 30.

In this example, the rear end 34a of the storage space 34 is curved in an arc so as to be convex toward the rear side in a top view. In other words, the rear end 34a of the storage space 34 is the front end of the rear end portion 24. Therefore, the connection line 42 on the storage space 34 side has a portion (curved portion 42a) that is curved in an arc so as to be convex toward the front side in a top view, and a portion (portions on both sides of curved portion 42a) that is curved in an arc so as to be convex toward the rear side. That is, in this example, the connection line 42 on the storage space 34 side is curved with two inflection points PI.

The backrest surface 106 of the bathtub body 102 is curved in an arc toward the rear side when viewed from above, for example, to make it easier to support the back of the bather. In this case, the front edge of the upper end that connects to the backrest surface 106 is also curved in an arc toward the rear side when viewed from above. Therefore, in accordance with these shapes, the front end 30a of the head rest 30 is also curved in an arc toward the rear side. This prevents unnecessary steps from occurring between the front end 30a of the head rest 30 and the backrest surface 106, making it easier for the bather to place his or her head on the upper surface 32 of the head rest 30. The rear end 34a of the storage space 34 is curved in an arc toward the rear side when viewed from above, for example, in accordance with the shape of the front end 30a of the head rest 30.

The shape of the rear end 34a of the storage space 34 when viewed from above is not limited to an arc shape, but may be, for example, a straight line extending in the left-right direction. The shape of the rear end 34a of the storage space 34 when viewed from above may be any shape.

When the connection line 42 on the storage space 34 side is curved with two inflection points PI, it is preferable to make the distance between the two inflection points PI as long as possible. In other words, it is preferable to make the width of the curved portion 42a in the left-right direction as long as possible. It is preferable that the left-right distance between the two inflection points PI is longer than, for example, the left-right distance between one inflection point PI and the side portion 21 and the left-right distance between the other inflection point PI and the side portion 22. Note that the number of inflection points PI is not limited to two and may be three or more.

The shape of the connection line 42 on the storage space 34 side and the shape of the protrusion 26 are not limited to the above, and may be any curved shape having an inflection point PI.

As described above, in the bathtub pillow 10 according to this embodiment, the bathtub pillow 10 is formed with a hard support part 20 and a soft head rest part 30, so that the deformation of the storage space 34 when the bather's head is placed on it can be suppressed without impairing the cushioning properties. The connection line 42 on the storage space 34 side is curved with an inflection point PI. This makes it difficult for a worker to apply force from the front end 30a of the head rest part 30 made of a soft material to the connection line 42 due to the "lever principle" when trying to remove the bathtub pillow 10 from the bathtub 100 by grabbing the front end 30a of the head rest part 30 made of a soft material and applying force upward. Therefore, compared to the case where a connection line extending linearly in the left-right direction is formed, for example, the head rest part 30 made of a soft material relative to the support part 20 is largely bent at the connection line 42, and the occurrence of a crease on the upper surface 32 of the head rest part 30 can be suppressed. For example, by having the connection line 42 on the storage space 34 side be curved with an inflection point PI, when the head rest 30 is repeatedly bent, it is possible to prevent the head rest 30 from bending at the same point with the connection line 42 as the base point, compared to a straight connection line. For example, the bending point of the head rest 30 can be shifted forward and backward. Therefore, even when the head rest 30 is repeatedly bent, it is possible to prevent large creases from appearing on the upper surface 32 of the head rest 30. In this way, it is possible to provide a bathtub pillow 10 that can prevent deformation of the internal storage space 34 without compromising cushioning properties and prevent creases from appearing on the upper surface 32.

The bathtub pillow 10 also has an opening 14 provided on the front surface of the pillow body 12. In this case, when removing the bathtub pillow 10 from the bathtub 100, the front end 30a of the head rest portion 30 can be easily grasped by placing the fingers in the opening 14. Even in such a case, as described above, by making the connection line 42 on the storage space 34 side curved with an inflection point PI, it is possible to prevent creases from appearing on the upper surface 32.

In addition, in the bathtub pillow 10, at least a portion of the connection line 42 on the storage space 34 side is located forward of the center CL in the front-to-rear direction of the storage space 34. This more reliably prevents the head rest 30 from bending significantly around the connection line 42, which would cause creases on the top surface 32 of the head rest 30.

In addition, in the bathtub pillow 10, the connection line 42 on the storage space 34 side is located behind the front end 30a of the head rest 30. This makes it possible to more reliably prevent a decrease in cushioning properties.

The vicinity of the center of the head rest 30 in the left-right direction is easier to grasp and apply force to than the ends in the left-right direction, so there is a high possibility that a large force will be applied to the head rest 30. In addition, when the front end 30a of the head rest 30 near the center of the storage space 34 in the left-right direction is grasped, the distance from the pair of side parts 21, 22 of the support part 20 is longer, so the force of the "leverage principle" is more likely to be applied to the head rest 30 than when other parts of the front end 30a of the head rest 30 are grasped. Therefore, as described above, by positioning the vicinity of the center of the left-right direction of the connection line 42 on the storage space 34 side forward of the inflection point PI, it is possible to make it difficult for the force of the "leverage principle" based on the connection line 42 to be applied to the head rest 30 even when the portion of the head rest 30 near the center of the storage space 34 is grasped. This more reliably prevents the head rest 30 from bending significantly at the connection line 42, which would result in creases on the top surface 32 of the head rest 30.

In the bathtub pillow 10, the connection line 42 on the storage space 34 side has a curved portion 42a that is curved so as to be convex toward the front side, and the apex portion 42b of the curved portion 42a is provided near the center in the left-right direction of the connection line 42 on the storage space 34 side. This makes it possible to make it less likely that the force due to the "leverage principle" based on the connection line 42 will be applied to the head rest part 30, even when the part of the head rest part 30 near the center of the storage space 34 is grasped.

In addition, by making the connection line 42 located above the storage space 34 into a continuously and smoothly changing arc shape, it is possible to make it less likely that the force due to the "leverage principle" with the connection line 42 as the base point will be applied to the head rest section 30, compared to when the connection line 42 is made into a shape with corners such as a triangle or a square.

FIG. 6 is a bottom view illustrating a modified example of the bathtub pillow according to the embodiment.
In addition, parts that are substantially the same in function and configuration as those in the above embodiment are given the same reference numerals and detailed explanations are omitted.
6, in the bathtub pillow 10a, at least a part of the connection line 42 on the storage space 34 side is located forward of the imaginary line VL connecting the rear ends 21a, 22a of the pair of side parts 21, 22. More specifically, the imaginary line VL is an imaginary line connecting the rear end 21a of the side part 21 on the storage space 34 side and the rear end 22a of the side part 22 on the storage space 34 side.

In this way, in the bathtub pillow 10a, at least a portion of the connection line 42 on the storage space 34 side is located forward of the imaginary line VL. This makes it less likely that force due to the "leverage principle" will be applied from the front end 30a of the head rest part 30, which is made of a soft material, to the connection line 42 when an operator grasps the front end 30a of the head rest part 30, which is made of a soft material, and applies upward force to remove the bathtub pillow 10a from the bathtub 100.

In the bathtub pillow 10a, a part of the curved portion 42a is located forward of the imaginary line VL. The part of the connection line 42 that is located forward of the imaginary line VL is not limited to the curved portion 42a, and may be any part.

FIG. 7 is a bottom view illustrating a modified example of the bathtub pillow according to the embodiment.
As shown in Fig. 7, in the bathtub pillow 10b, at least a part of the connection line 42 on the storage space 34 side is wavy. The connection line 42 is formed in a wavy shape at least in the vicinity of the center in the left-right direction. In the bathtub pillow 10b, the connection line 42 is a curved shape having multiple inflection points PI and multiple apex portions 42b. In other words, the wavy shape is a shape having multiple arc-shaped protrusions 26 arranged in the left-right direction.

In this way, in the bathtub pillow 10b, at least a part of the connection line 42 is wavy, that is, has a shape with multiple inflection points PI and vertices 42b, which are nodes, so that it is possible to more reliably prevent the head rest part 30 from bending significantly and causing large creases on the upper surface 32 of the head rest part 30. In addition, in the wavy connection line 42, the multiple vertices 42b are not aligned in a straight line in the left-right direction. This makes it possible to more reliably prevent large creases from occurring on the upper surface 32 of the head rest part 30. In addition, in the wavy connection line 42, the multiple vertices 42b are not aligned on a curve with the same curvature. In other words, the multiple vertices 42b are not aligned on the same circumference. This makes it possible to more reliably prevent large creases from occurring on the upper surface 32 of the head rest part 30.

In this example, the connection line 42 has five vertices 42b. The number of vertices 42b provided on the connection line 42 is not limited to five, and may be any number equal to or greater than two. Also, FIG. 7 illustrates a state in which the protrusion amount of each of the protrusions 26 is relatively small. For example, if at least a portion of the connection line 42 is wavy, each of the multiple vertices 42b may be positioned forward of the virtual line VL.

The above describes the embodiments of the present invention. However, the present invention is not limited to these descriptions. Any design changes made by a person skilled in the art to the above-mentioned embodiments are also included in the scope of the present invention as long as they have the characteristics of the present invention. For example, the shape, size, material, arrangement, etc. of each element of the bathtub pillow 10, 10a, 10b, etc. are not limited to those exemplified, and can be changed as appropriate.
Furthermore, the elements of each of the above-described embodiments can be combined to the extent technically possible, and such combinations are also included within the scope of the present invention as long as they include the features of the present invention.

10, 10a, 10b Bathtub pillow, 12 Pillow body, 14 Opening, 20 Support part, 21, 22 Side part, 24 Rear end part, 26 Protruding part, 30 Head rest part, 32 Top surface, 34 Storage space, 40 Connection surface, 42 Connection line, 100 Bathtub, 102 Bathtub body, 104 Inner wall surface, 106 Backrest surface, 110 Functional part

Claims (3)

A bathtub pillow that is installed in a bathtub and on which a bather can place his/her head,
A support member having a pair of side portions and a rear end portion connecting rear ends of the pair of side portions, for supporting the weight of the bather's head;
a head rest member that is provided on the support member, covers the upper portion of the space between the pair of side portions, and on which the bather's head can be placed, the head rest member being provided on the upper end of the bathtub and forming, together with the support member, a storage space for storing a water discharge unit that discharges hot and cold water into the bathtub; and
An opening for exposing a water outlet of the water discharge unit forward;
Equipped with
When viewed from above, the front end of the head rest member is curved rearward toward the center in the left-right direction ,
This bathtub pillow is characterized in that, in a front-to-back cross-sectional view passing through the center of the left-to-right direction of the opening , the head rest member has an upper surface side and a storage space side that slope downward as they approach the front , forward of the center of the front-to-back direction of the storage space. 2. The bathtub pillow according to claim 1, wherein the support member and the head rest member are made of an elastic resin material. 3. The bathtub pillow according to claim 1, wherein the head rest member is softer than the support member.

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