bedding

Abstract

The present invention aims to provide a bedding that inhibits air from leaking out immediately after air is put inside. The bedding of the present embodiment has a hollow main body portion (21), a hollow suction portion (24) that extends integrally from the main body portion (21) and has a suction port (25) at a front end portion, and a cylindrical portion (26) that is formed of a material having flexibility inside the suction portion (24). The cylindrical portion (26) extends toward the main body portion (21) and has a flow port (27) for causing air suctioned from the suction port (25) to flow out to the main body portion (21).

Description

Technical Field

[0001] This invention relates to bedding. Background Technology

[0002] Currently, bedding designed for use by introducing air into the body is known. Patent Document 1 discloses an air pillow comprising: a bag body having an opening for drawing in air and a sealing member for closing the opening to seal the air within the bag; and a cover having a storage opening for storing the bag body. The air pillow of Patent Document 1 is designed to be worn around the user's neck by introducing air through the opening of the bag body and sealing the opening, then rolling the rear of the bag body towards the front, and finally closing the storage opening with the bag body's fixing member.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Utility Model Registration No. 3184468 Summary of the Invention

[0006] The technical problem that the invention aims to solve

[0007] However, in the air pillow of Patent Document 1, during the period from when air is introduced through the opening of the bag body until the opening is sealed, air may leak out from the opening of the bag body.

[0008] The present invention was made in view of the above-mentioned problems, and its purpose is to prevent air leakage immediately after air is introduced into the interior.

[0009] Solutions for solving technical problems

[0010] The invention is characterized by having: a hollow main body; a hollow intake portion integrally extending from the main body and having an intake port at a front end; and a cylindrical portion formed of a flexible material inside the intake portion, the cylindrical portion extending toward the main body and having an outlet for allowing air drawn in from the intake port to flow out toward the main body, the cylindrical portion shrinking due to the pressure of the air flowing out into the main body, the outlet being blocked, thereby functioning as a check valve, the cylindrical portion sealing the main body by winding the intake portion toward the main body side together with the intake portion.

[0011] The effects of the invention

[0012] According to the present invention, it is possible to prevent air leakage immediately after air is introduced into the interior. Attached Figure Description

[0013] Figure 1This is a perspective view showing an example of the structure of a neck pillow after air has been introduced.

[0014] Figure 2 This is a diagram showing an example of the construction of a neck pillow before air is introduced.

[0015] Figure 3 This is a diagram illustrating an example of the structure of an expansion body.

[0016] Figure 4 This is a diagram illustrating an example of the structure of the cover.

[0017] Figure 5 It is a diagram used to illustrate the order in which air is introduced.

[0018] Figure 6 It is a diagram showing the deformation of the cylindrical section before and after air is introduced.

[0019] Figure 7 It is a diagram used to illustrate the sequence of air expulsion.

[0020] Explanation of reference numerals in the attached figures

[0021] 100: Neck pillow; 10: Neck insertion part; 11: Open part; 20: Inflatable body; 21: Main body; 22: Rear part; 23a, 23b: Side part; 24: Inhalation part; 25: Inhalation port; 26: Cylindrical part; 27: Outlet; 30a, 30b: Core component; 40: Cover; 41: Main body cover; 44: Inhalation cover. Detailed Implementation

[0022] Hereinafter, an embodiment of the bedding according to the present invention, in the case of a neck pillow 100, will be described with reference to the accompanying drawings. The neck pillow 100 of this embodiment is made so that it can be worn on and surrounds the user's neck by introducing air from a state where no air has entered, and can be folded and stored compactly by expelling air.

[0023] Figure 1 This is a perspective view showing the structure of the neck pillow 100 after air has been introduced. Figure 1 (a) is a three-dimensional view of the neck pillow 100 viewed from above. Figure 1 (b) is a perspective view of the neck pillow 100 viewed from below. It should be noted that, including... Figure 1 In the various diagrams, for ease of explanation, the positions of up, down, front, back, right, and left are appropriately illustrated based on the state of the neck pillow 100 being worn on the user's neck.

[0024] When viewed from above, the neck pillow 100 is roughly circular in shape with a neck insertion portion 10 in the center for the user to insert their neck. Additionally, the neck pillow 100 has a discontinuous portion of the circular shape on the front side, an opening 11 that can open to the left and right. The user inserts their neck through the opening 11 into the neck insertion portion 10 and wears the neck pillow 100 around their neck.

[0025] Figure 2 This is a diagram showing the configuration of the neck pillow 100 in its unfolded state before being aired. Figure 2 (a) is a top view of the neck pillow 100. Figure 2 (b) is a side view of the neck pillow 100.

[0026] like Figure 2 As shown in (a), the front of the neck pillow 100 before air is introduced is roughly C-shaped or roughly U-shaped, and the back is roughly rectangular. Additionally, as... Figure 2 As shown in (b), the neck pillow 100 before being filled with air is a flat shape with a relatively thin thickness in the vertical direction.

[0027] The neck pillow 100 has an inflatable body 20 that expands by air intake and a cover 40 that covers the inflatable body 20 from the outside. It should be noted that... Figure 2 In (a), since the expansion body 20 is covered by the cover body 40 and cannot be visually confirmed, it is indicated by a hidden line (dashed line).

[0028] Figure 3 This is a diagram showing the structure of the expander 20. Figure 3 (a) is a top view showing the state of the expanded body 20 after it has been unfolded. Figure 3 (b) is Figure 3 Sectional view along line II of (a). It should be noted that... Figure 3 (a) shows the state before air was introduced. Figure 3 (b) shows the state after being slightly exposed to air for ease of understanding.

[0029] The inflatable body 20, by introducing air, provides a springy feel to the user when the neck pillow 100 is worn.

[0030] The expander 20 has a main body 21, an intake part 24, a cylindrical part 26, core parts 30a and 30b, and surface joint parts 31a and 31b.

[0031] The main body 21 is the part that surrounds the user's neck when the neck pillow 100 is worn. The main body 21 is roughly C-shaped or roughly U-shaped when viewed from above. The main body 21 is made of a soft, non-breathable material, such as a sheet of synthetic resin like polyurethane. Furthermore, the main body 21 is transparent or translucent. Additionally, the main body 21 is hollow, allowing air to be incorporated. Specifically, the main body 21 is constructed from two sheets 21a and 21b (see reference 1) that are roughly C-shaped or roughly U-shaped when viewed from above. Figure 3 (b) are overlapped and their outer edges are fused together to form a structure.

[0032] In addition, the main body 21 has a rear part 22 that covers the user's neck from the back when the neck pillow 100 is worn by the user, and a pair of side parts 23a, 23b that cover the user's neck from the left and right.

[0033] The rear portion 22 is located behind the pair of side portions 23a and 23b. The rear portion 22 has a curved shape in which its width gradually decreases in the left and right directions as it moves toward the rear. On the other hand, the pair of side portions 23a and 23b extend toward each other from the left and right sides of the rear portion 22 toward the front. In addition, the front ends of the front sides of the pair of side portions 23a and 23b are each curved into a roughly semi-circular shape.

[0034] The central space surrounded by the rear portion 22 and a pair of side portions 23a and 23b corresponds to the aforementioned neck insertion portion 10, and the gap between the side portions 23a and 23b corresponds to the aforementioned opening portion 11. It should be noted that... Figure 3 The width W1 (maximum distance in the left-right direction of the gap between side portions 23a and 23b) of the neck insertion portion 10 shown in (a) is approximately 90-100 mm, and the width W2 (minimum distance in the left-right direction of the gap between side portions 23a and 23b) of the opening portion 11 is approximately 70-80 mm. It should be noted that the width WA (maximum distance in the left-right direction of the main body portion 21) of the pair of side portions 23a, 23b and the neck insertion portion 10 combined is approximately 440-460 mm.

[0035] The intake section 24 is a part used to introduce (draw in) air from the outside into the interior of the main body 21. The intake section 24 is generally rectangular when viewed from above. The intake section 24 is integrally formed with the main body 21. The intake section 24 extends integrally from the rear end 22 of the main body 21 toward the rear side. That is, the intake section 24 is made of the same material as the main body 21, using a soft and non-breathable material, such as a sheet made of synthetic resin like polyurethane. Furthermore, the intake section 24 is transparent or translucent, just like the main body 21. The intake section 24 is hollow and communicates with the interior of the main body 21. Specifically, the intake section 24 is formed by two consecutive sheets 24a and 24b (see reference 24a) extending from the main body 21 when viewed from above. Figure 3 (b) The two sheets 24a and 24b overlap vertically and are fused together at their outer edges. On the other hand, the intake section 24 has an intake port 25 formed by the non-fusion of the front ends (rear ends) of the rear sides of the two sheets 24a and 24b. The intake port 25 serves as an opening for introducing (inhaling) air into the interior of the main body 21. Air enters and exits only through the intake port 25 between the interior space that connects the main body 21 and the intake section 24 and the outside. Therefore, by sealing the intake port 25, the main body 21 and the intake section 24 can be sealed.

[0036] It should be noted that the lateral width W3 of the suction section 24 is approximately 130-140 mm. Here, the lateral width W3 of the suction section 24 is larger than the lateral width W1 of the neck insertion section 10. Furthermore, the lateral width W3 of the suction section 24 is larger than the lateral width W2 of the opening section 11. Therefore, it is possible to ensure that the suction port 25 of the suction section 24 is wider, allowing more air to be introduced into the main body 21 at once. On the other hand, the lateral width W3 of the suction section 24 is smaller than the lateral width WA of the combined side sections 23a, 23b and neck insertion section 10. Moreover, the lateral width W3 of the suction section 24 is smaller than half the lateral width WA of the combined side sections 23a, 23b and neck insertion section 10 (WA / 2). Therefore, the suction section 24 does not become excessively large, allowing the user to easily perform the operation of winding the suction cover 44 as described later.

[0037] The cylindrical portion 26 functions as a check valve to prevent air leakage from the intake port 25 immediately after air is introduced into the main body portion 21. Viewed from above, the cylindrical portion 26 is roughly rectangular and is located within the intake portion 24, overlapping with it. Specifically, the cylindrical portion 26 is situated between the two sheets 24a and 24b of the intake portion 24. The cylindrical portion 26 uses the same material as the main body portion 21, i.e., a soft and non-breathable material, such as a synthetic resin like polyurethane. Furthermore, the cylindrical portion 26 is transparent or translucent, just like the main body portion 21. The cylindrical portion 26 is constructed by combining two sheets 26a and 26b (see reference 26a and 26b). Figure 3 (b) is formed by overlapping the top and bottom edges and fusing the outer edges (edges) on the left and right sides. Figure 3 In (a), since the suction part 24 is made of a transparent or light-transmitting material, the cylindrical part 26 can be visually confirmed through the suction part 24.

[0038] The cylindrical portion 26 is a cylindrical shape in which air flows in the front-to-back direction, extending from the front end (rear end) of the rear side of the intake portion 24 through the interior of the intake portion 24 toward the main body portion 21.

[0039] The opening at the rear end of the cylindrical portion 26 is integrally formed with the intake port 25 of the intake portion 24. Specifically, the outer peripheral surface of the rear end of the cylindrical portion 26 is joined to the inner peripheral surface of the intake port 25 of the intake portion 24 in a circumferentially tight manner, thereby making the opening at the rear end of the cylindrical portion 26 integral with the intake port 25 of the intake portion 24. Therefore, the air drawn in from the intake port 25 of the intake portion 24 flows forward through the cylindrical portion 26.

[0040] On the other hand, the opening at the front end of the cylindrical portion 26 is located near the boundary between the main body portion 21 and the suction portion 24 in the front-rear direction. Here, the boundary between the main body portion 21 and the suction portion 24 refers to, for example... Figure 3 As shown in (a), when the main body 21 and the suction part 24 are smoothly connected in a curved shape, it is assumed that they are connected by a straight line ( Figure 3 The intersection point P1 is where the dashed lines (shown in (a)) connect. Here, "closer" means that the opening at the front end of the cylindrical portion 26 is closer to the intersection point P1 in the front-rear direction than the rear end of the cylindrical portion 26, and closer to the intersection point P1 than the front end (point P2) of the rear portion 22 of the main body portion 21. Air that enters from the intake port 25 and flows forward within the cylindrical portion 26 flows out into the main body portion 21 through the opening at the front end of the cylindrical portion 26. That is, the opening at the front end of the cylindrical portion 26 functions as the outlet 27 when air flows out into the main body portion 21.

[0041] Furthermore, the outer edges (edges) on both sides of the cylindrical portion 26 are fused together with the outer edges (edges) on both sides of the suction portion 24 from the rear end to the front end, but are not fused with the suction portion 24 from the approximately middle portion to the front end. Therefore, the cylindrical portion 26 is not restricted by the suction portion 24 from the approximately middle portion to the front end in the front-back direction, and can move freely within the suction portion 24. Specifically, as described later, the cylindrical portion 26 can deform by shrinking (contracting) due to the pressure of the air flowing into the main body portion 21, thereby blocking the outlet 27. In addition, as described later, when air is expelled, the user pulls the front end of the cylindrical portion 26 from the suction port 25 toward the rear. At this time, by folding the portion of the cylindrical portion 26 from the approximately middle portion to the front end toward the rear, the front end of the cylindrical portion 26 can be pulled out.

[0042] It should be noted that the cylindrical portion 26 has a welded portion 28 approximately in the middle of its front-rear direction. This welded portion 28 is welded to the outer edges (edges) of the left and right sides of the suction portion 24 in a manner that is wider in the left-right direction than other welded portions. Since the welded portion 28 can improve the joint strength of the weld compared to other portions, it can prevent the cylindrical portion 26 from breaking or the suction portion 24, which is welded together with the cylindrical portion 26, from breaking even when subjected to load when the front end of the cylindrical portion 26 is pulled out.

[0043] Additionally, a gripper 29 is fixed to the opening edge of the cylindrical portion 26 at the outlet 27. The gripper 29 is the part the user grasps when pulling the front end of the cylindrical portion 26 from the inlet 25 towards the rear, after expelling air from the main body 21. The gripper 29 is made of a soft material that does not damage the main body 21, such as sheet-like synthetic resin like nylon. Furthermore, the gripper 29 has a color different from the transparency of the cylindrical portion 26. Specifically, the gripper 29 has warm colors such as red, orange, and yellow, which are noticeable even in darker environments. Figure 3 As shown in (b), the gripper 29 is fixed to the front end of one of the two sheets 26a and 26b constituting the cylindrical portion 26, approximately at the center in the left-right direction. Figure 3 In (a), since the main body 21 is made of a transparent or light-transmitting material, the gripper 29 can be visually confirmed through the main body 21. It should be noted that the gripper 29 may also be omitted. In this case, the user can grasp the opening edge of the outlet 27 and pull out the cylindrical part 26 to expel the air that has entered the main body 21.

[0044] Furthermore, the width of the cylindrical portion 26 in the left-right direction is approximately the same as the width W3 of the suction portion 24 in the left-right direction from the rear end to the front end, and gradually decreases from the front end towards the rear. Additionally, the length L1 of the cylindrical portion 26 in the front-back direction from the rear end to the front end is approximately 180-190 mm. On the other hand, the length L2 of the cylindrical portion 26 in the front-back direction from the rear end of the suction portion 24 to the front end (point P2) of the rear portion 22 of the main body 21 is approximately 300-310 mm. Therefore, the length L1 of the cylindrical portion 26 in the front-back direction is shorter than the length L2 of the cylindrical portion 26 in the front-back direction from the rear end of the suction portion 24 to the front end (point P2) of the rear portion 22 of the main body 21, but longer than half the length L2 (L2 / 2).

[0045] As described below, the core components 30a and 30b are the parts that serve as the core when the user rolls the inhalation cover 44 toward the main body cover 41 to seal the main body 21 after air is introduced into it. When viewed from above, the core components 30a and 30b are approximately rectangular in shape, longer in the left-right direction, and are approximately plate-shaped. The left-right width of the core components 30a and 30b is approximately the same as the left-right width W3 of the inhalation portion 24. The core components 30a and 30b are arranged along the opening of the inhalation port 25. Specifically, the core component 30a is disposed between the rear end of the sheet 24a of the inhalation portion 24 and the rear end of the sheet 26a of the cylindrical portion 26, and the core component 30b is disposed between the rear end of the sheet 24b of the inhalation portion 24 and the rear end of the sheet 26b of the cylindrical portion 26 (see reference). Figure 3 (b) and the following Figure 6 It should be noted that the core components 30a and 30b respectively weld the sheet 24a of the suction section 24 to the sheet 26a of the cylindrical section 26 at a position further forward than the core components 30a and 30b, and position it along the opening of the suction port 25 by welding the sheet 24a of the suction section 24 to the sheet 26a of the cylindrical section 26. Figure 3 In (a), since the suction part 24 is made of a transparent or light-transmitting material, the core component 30a can be visually confirmed through the suction part 24. Furthermore, the core components 30a and 30b are made of a flexible material that is more rigid than the main body 21, the suction part 24, and the cylindrical part 26, such as a synthetic resin like polypropylene. Additionally, the thickness (vertical thickness) of the core components 30a and 30b is set to be greater than the thickness (vertical thickness) of each sheet of the main body 21, the suction part 24, and the cylindrical part 26.

[0046] The face-fitting parts 31a and 31b are the parts that engage with the face-fitting parts 51a and 51b (described later) provided on the cover 40 when the cover 40 is installed on the expansion body 20. When viewed from above, the face-fitting parts 31a and 31b are generally rectangular in shape, longer in the left-right direction. The face-fitting parts 31a and 31b are disposed along the outer peripheral surface of the suction port 25 of the suction section 24. Specifically, the face-fitting part 31a is adhered to the outer rear end of the sheet 24a of the suction section 24, and the face-fitting part 31b is adhered to the outer rear end of the sheet 24b of the suction section 24 (see reference). Figure 3 (b) It should be noted that the face joints 31a and 31b are provided with multiple small hooks along the entire face direction.

[0047] Figure 4 This is a diagram showing an example of the structure of the cover 40. Figure 4 (a) is a top view showing the state after the cover 40 is unfolded. Figure 4 (b) is Figure 4 (a) Sectional view along line II-II. It should be noted that... Figure 4 (a) is represented in a flat state. Figure 4 (b) is represented in a slightly inflated state for ease of understanding.

[0048] The cover 40 protects the expansion body 20 from contamination or damage by covering it from the outside, or provides a soft skin feel when in contact with the user. Furthermore, the cover 40 is detachable from the expansion body 20. Therefore, if the cover 40 becomes contaminated, it can be detached from the expansion body 20 for cleaning.

[0049] The cover 40 has a main cover 41, an inhalation cover 44, surface joints 51a and 51b, a locking part 52, a locked part 55a and 55b, and a storage locked part 58.

[0050] The main cover 41 is the portion that covers the main body 21 of the inflatable body 20 from the outside. The main cover 41 is made of a stretchable, soft, and breathable material, such as a synthetic resin fabric made of polyester fiber. The main cover 41 is hollow, capable of covering the main body 21 into which air is contained. Specifically, the main cover 41 consists of two pieces of fabric 41a and 41b that, when viewed from above, are approximately C-shaped or approximately U-shaped (see reference). Figure 4 (b) The upper and lower parts overlap and the outer edges are sewn together to form the structure. It should be noted that the main body cover 41 has the same shape as the main body 21 of the expansion body 20 when viewed from above, but considering the fit or disassembly of the main body 21, the size of each part of the main body 21 can be appropriately increased or decreased.

[0051] The suction hood 44 is the portion that covers the suction portion 24 in the inflatable body 20. The suction hood 44 is integrally formed with the main body hood 41. That is, the suction hood 44 is made of the same material as the main body hood 41, using a stretchable, soft, and breathable material, such as a synthetic resin fabric made of polyester fiber. The suction hood 44 is hollow and communicates with the interior of the main body hood 41. Specifically, the suction hood 44 is formed by two consecutive pieces of fabric 44a and 44b (see reference 1) extending from the main body hood 41 when viewed from above. Figure 4 (b) The two fabrics 44a and 44b overlap vertically and are sewn together at their outer edges. On the other hand, the suction hood 44 has an opening 45 formed by leaving the front ends (rear ends) of the rear sides of the two fabrics 44a and 44b unsewn. The opening 45 serves as a disassembly / reassembly port for attaching and detaching the hood 40 relative to the expansion body 20. It should be noted that when the hood 40 is attached to the expansion body 20, the suction port 25 of the suction part 24 of the expansion body 20 is located within the opening 45 of the suction hood 44. Furthermore, to strengthen the opening 45, a reinforcing member 46 is attached to the rear end of the suction hood 44 along the outer peripheral surface of the opening 45. Additionally, while the suction hood 44 has the same shape as the suction part 24 of the expansion body 20 when viewed from above, its dimensions can be appropriately increased or decreased relative to the dimensions of the suction part 24, taking into account the fit and ease of attachment / removal.

[0052] The face-fitting members 51a and 51b are the parts that engage with the face-fitting members 31a and 31b provided on the suction portion 24 of the expansion body 20 when the cover 40 is installed on the expansion body 20. When viewed from above, the face-fitting members 51a and 51b are generally rectangular in shape, longer in the left-right direction. The face-fitting members 51a and 51b are arranged along the inner peripheral surface of the opening 45 of the suction cover 44. Specifically, the face-fitting member 51a is sewn onto the inner side of the rear end of the fabric 44a of the suction cover 44, and the face-fitting member 51b is sewn onto the inner side of the rear end of the fabric 44b of the suction cover 44. Figure 4 (b) It should be noted that the face-joint parts 51a and 51b are provided with a plurality of small rings in the entire face direction for engaging with the hooks of the face-joint parts 31a and 31b.

[0053] The locking portion 52 is used to lock the suction hood 44 to the locked portions 55a and 55b to maintain the state of the suction hood 44 wrapped around the main body hood 41. The locking portion 52 is generally hook-shaped so as to be able to hook onto the locked portions 55a and 55b. The locking portion 52 is located on the outer side of the fabric 41a of the main body hood 41 and is located approximately at the center in the left-right direction. Specifically, the locking portion 52 is installed at the front end of the strip member 53, which is installed on the outer side of the fabric 44a of the suction hood 44 in the front-back direction. It should be noted that the strip member 53 has a connecting portion 54 at approximately the center in the front-back direction, which is sewn together with the fabric 44a of the suction hood 44. On the other hand, the strip member 53 is not connected to the fabric 44a of the suction hood 44 from the connecting portion 54 to the locking portion 52, so the locking portion 52 can be separated from the outer side of the fabric 41a of the main body hood 41.

[0054] The locking portions 55a and 55b are the parts locked by the locking portion 52. Viewed from the left and right direction, the locking portions 55a and 55b are semi-circular, allowing them to hook onto the roughly hook-shaped locking portion 52. The locking portions 55a and 55b are located on the outer side of the fabric 41b of the main cover 41, near the neck insertion portion 10, and approximately at the center in the left-right direction of the main cover 41. Specifically, the locking portions 55a and 55b correspond to the portions of the strip-shaped member 56 disposed along the front-back direction on the outer side of the fabric 41b of the main cover 41 that are not attached to the fabric 41b. The locking portions 55a and 55b are located adjacent to each other front-back, and the locking portion 52 locks onto either the locking portion 55a or the locking portion 55b.

[0055] The storage locking part 58 is the portion that is locked in place by the locking part 52 when the neck pillow 100 is rolled up for storage. The storage locking part 58 is semi-circular when viewed from the left-right direction, allowing it to hook onto the roughly hook-shaped locking part 52. The storage locking part 58 is located on the outer side of the fabric 41a of the main cover 41, near the reinforcing member 46, and approximately at the center in the left-right direction of the main cover 41. More specifically, the storage locking part 58 corresponds to the portion of the strip-shaped member 53 that is not attached to the fabric 44a and is installed along the front-back direction on the outer side of the fabric 44a of the suction cover 44.

[0056] When the cover 40 configured as described above is installed on the expansion body 20, the expansion body 20, which is not exposed to air, is inserted into the cover 40 through the opening 45 in the order of main body 21 and suction part 24. At this time, the main body 21 and suction part 24 are flexed or bent while being inserted into the cover 40 so that the expansion body 20 can pass through the opening 45. Next, the main body 21 and suction part 24 are unfolded inside the cover 40 so that the shape of the main body 21 matches the shape of the main cover 41, and the shape of the suction part 24 matches the shape of the suction cover 44, thereby adjusting the overall shape. Finally, the surface fittings 31a and 31b of the expansion body 20 are engaged with the surface fittings 51a and 51b of the cover 40, respectively. By installing the cover 40 onto the expansion body 20 in this way, it is possible to achieve the following: Figure 2 The state shown is where the cover 40 covers the expansion body 20 from the outside.

[0057] On the other hand, when detaching the cover 40 from the expansion body 20, the process is performed in the reverse order of installation. Specifically, the engagement is released by pulling apart the face joints 31a and 31b of the expansion body 20 and the face joints 51a and 51b of the cover 40. Then, the expansion body 20 is pulled out from the opening 45 of the cover 40. In this way, by detaching the cover 40 from the expansion body 20, the cover 40 can be cleaned.

[0058] Next, refer to Figure 5 For neck pillow 100 from Figure 2 The state shown is that the air does not enter the main body 21. Figure 1 The sequence of air entering the main body 21 will be explained. Here, the cover 40 has been installed on the expansion body 20.

[0059] First, such as Figure 5 As shown in (a), the user opens the opening 45 of the cover 40. At this time, the inner peripheral surface of the opening 45 of the cover 40 engages with the outer peripheral surface of the suction port 25 of the suction part 24 via the surface engagement members 31a, 31b and 51a, 51b, so the suction port 25 of the suction part 24 of the expansion body 20 also opens.

[0060] Next, the user blows air into the main body 21 of the inflator 20 multiple times (two to three times in this case) through the open inlet 25. At this time, the user can blow air in while keeping their mouth separate from the inlet 25. By blowing air in while separated from the inlet 25, the viscous friction generated between the flowing air and the surrounding air attracts surrounding air, thereby drawing in more air through the inlet 25. The air drawn in from the inlet 25 of the inhalation section 24 flows forward through the cylindrical section 26 and exits from the outlet 27 at the front end of the cylindrical section 26 into the main body 21.

[0061] Here, due to the air flowing out into the main body 21, the main body 21 and the intake 24 gradually expand. Furthermore, due to the air flowing out into the main body 21, the pressure inside the main body 21 increases to some extent. Due to the increased air pressure, the cylindrical portion 26 shrinks (contracts), thereby deforming to block the outlet 27. By deforming the cylindrical portion 26 to block the outlet 27, it is possible to prevent air from leaking out from the intake 25 immediately after air is introduced into the main body 21. In this way, the cylindrical portion 26 functions as a so-called check valve.

[0062] Figure 6 This is a cross-sectional view used to illustrate the deformation of the cylindrical portion 26, equivalent to... Figure 2 Sectional view along line III-III. Figure 6 (a) shows the state of outlet 27 before it was blocked. Figure 6 (b) shows the state of outlet 27 after it is blocked.

[0063] exist Figure 6 In (a), the air drawn in from the intake port 25 of the intake section 24 flows forward through the cylindrical section 26 and flows out from the outlet 27 at the front end of the cylindrical section 26 into the main body section 21 (refer to arrow A1). In this state, because the air pressure inside the main body section 21 is low, the cylindrical section 26 hardly deforms and is in a front-to-back direction.

[0064] On the other hand, Figure 6 In (b), the cylindrical portion 26 shrinks (contracts) due to the pressure of the air flowing into the main body portion 21, thus deforming to block the outlet 27. In this state, the air inside the main body portion 21 is blocked by the cylindrical portion 26 and does not leak out from the outlet 27 (see arrow A2). It should be noted that in Figure 6In (b), the cylindrical portion 26 is shown deformed in such a way that the outlet 27 is blocked without gaps. However, even if the cylindrical portion 26 is deformed in such a way that the outlet 27 is not blocked without gaps, but the opening area of ​​the outlet 27 is reduced, it is still possible to prevent air from leaking out from the intake port 25 immediately after air is introduced into the main body portion 21.

[0065] Next, as Figure 5 As shown in (b), the user closes the opening 45 of the cover 40. At this time, by closing the opening 45 of the main cover 41, the intake port 25 of the intake section 24 located within the opening 45 of the intake cover 44 is also closed. It should be noted that by closing the intake port 25, the inner circumferential surfaces of the sheets 26a and 26b of the cylindrical portion 26 near the intake port 25 are pressed tightly against each other, preventing air from leaking out of the main body 21 through the intake port 25. It should be noted that... Figure 5 In the state shown in (b), the expansion of the main body 21 is insufficient, and there is still a margin to which air can be introduced.

[0066] Next, as Figure 5 As shown in (c), the user rolls the inhalation cover 44 in the cover 40 toward the main cover 41. Specifically, the user rolls the inhalation cover 44 with the core parts 30a and 30b of the inhalation part 24 as the core, folding it so that the upper surface forms a valley. Here, by rolling the inhalation cover 44, the inhalation part 24 covered by the inhalation cover 44 is also rolled toward the main cover 21 together with the inhalation cover 44. Furthermore, by rolling the inhalation part 24, the cylindrical part 26 located inside the inhalation part 24 at a position overlapping with the inhalation part 24 is also rolled toward the main cover 21 together with the inhalation part 24. By rolling the inhalation cover 44 in a predetermined number of folds (four times in this case), the user positions the rolled inhalation cover 44 at the rear end of the main cover 41.

[0067] Furthermore, by winding the suction section 24 and the cylindrical section 26, which serves as a check valve, together toward the main body section 21, the space inside the main body section 21 can be sealed due to the close contact between the suction section 24 and the cylindrical section 26, further suppressing air leakage from the suction port 25. In this way, by overlapping and winding the suction section 24 and the cylindrical section 26 together, the space inside the main body section 21 can be sealed even without using fasteners (e.g., wire couplings or rubber plugs) for opening and closing the suction section 24. Furthermore, by winding the cylindrical section 26, which serves as a check valve, together with the suction section 24, even with only a few windings (around three or four times), the space inside the main body section 21 can be sealed. In addition, by winding the inhalation part 24 toward the main body part 21, the air inside the inhalation part 24 gradually flows toward the main body part 21, thus ensuring sufficient expansion of the main body part 21 and increasing the air pressure inside the main body part 21. Therefore, when using the neck pillow 100, it can provide the user with an appropriate elasticity.

[0068] Finally, with the wound-up inhalation cover 44 positioned at the rear end of the main body cover 41, the user can maintain the inhalation cover 44 wound around the main body cover 41 by locking the locking part 52 against the locked parts 55a and 55b. This sequence allows air to enter the main body 21 through the neck pillow 100. By maintaining the inhalation cover 44 wound around the main body cover 41, the neck pillow 100 is made compact during use. Furthermore, maintaining the tight fit between the inhalation part 24 and the cylindrical part 26 prevents air from leaking out of the inhalation port 25 from the main body 21. With the locking part 52 and the locked parts 55a and 55b positioned downwards, the user inserts their neck through the neck insertion part 10 via the opening part 11 to use the neck pillow 10.

[0069] It should be noted that when the locking part 52 is engaged, compared with the rear engaged part 55a, the air pressure inside the main body 21 can be increased by engaging the front engaged part 55b. Therefore, the engaged parts 55a and 55b of the locking part 52 can be selected according to the user's preferred elasticity.

[0070] Next, refer to Figure 7 The sequence of expelling air from the neck pillow 100 to achieve a compact and secure state will be explained.

[0071] First, the user releases the lock between the locking part 52 and the locked parts 55a and 55b by removing the locking part 52 from the locked parts 55a and 55b. Next, the user returns the folded suction cup 44 to its original folded state. Then, as... Figure 7As shown in (a), the user inserts their hand into the suction unit 24 and pulls the front end of the cylindrical part 26 outwards and backwards from the suction port 25. At this time, the user can easily pull out the front end of the cylindrical part 26 by grasping and pulling out the handle part 29 fixed to the opening edge of the outlet 27 of the cylindrical part 26. It should be noted that since the handle part 29 is a different color from the transparency of the cylindrical part 26 and has a distinct color, it can be easily found even in darkness covered by the cover body 40.

[0072] Next, as Figure 7 As shown in (b), the user folds the two sides of the main body cover 41 toward the center and overlaps them.

[0073] Next, as Figure 7 As shown in (c), the user rolls the main body cover 41 from the front end toward the opening 45 of the intake cover 44. Here, by rolling the main body cover 41, the main body 21 covered by the main body cover 41 also rolls toward the opening 45 of the intake cover 44. Therefore, the air entering the main body 21 is gradually forced out toward the intake section 24 and discharged to the outside through the outlet 27 via the cylindrical section 26. As the user continues to roll the intake cover 44 continuously from the main body cover 41 toward the opening 45, the intake section 24 covered by the intake cover 44 also rolls toward the opening 45 of the intake cover 44, and the air entering the intake section 24 is also discharged to the outside through the outlet 27.

[0074] Next, as Figure 7 As shown in (d), the user folds the cover 40 with the cylindrical part 26 facing inward.

[0075] Finally, as Figure 7 As shown in (e), the user can keep the neck pillow 100 in a compact state by locking the locking part 52 of the cover 40 to the storage locking part 58.

[0076] In this embodiment, the neck pillow 100 has: a hollow main body portion 21; a hollow intake portion 24 extending integrally from the main body portion 21, having an intake port 25 at its front end; and a cylindrical portion 26, the interior of which is formed of a soft material. The cylindrical portion 26 extends from the front end of the intake portion 24 toward the main body portion 21 and has an outlet 27 for allowing air drawn in from the intake port 25 to flow out into the main body portion 21. When a user inserts air into the main body portion 21, the pressure inside the main body portion 21 increases to some extent due to the air flowing out. Due to the increased air pressure, the cylindrical portion 26 shrinks, thereby deforming and blocking the outlet 27. In this way, the cylindrical portion 26 shrinks due to the pressure of the air flowing out into the main body portion 21, and the outlet 27 is blocked, thus functioning as a check valve. Therefore, it is possible to prevent air leakage immediately after air is inserted into the neck pillow 100.

[0077] Furthermore, according to this embodiment, by winding the suction portion 24 toward the main body portion 21, the cylindrical portion 26 is also wound toward the main body portion 21 together with the suction portion 24. Therefore, since the suction portion 24 and the cylindrical portion 26 can fit tightly together, the space inside the main body portion 21 can be sealed, further suppressing air leakage from the suction port 25. Additionally, by winding the suction portion 24 toward the main body portion 21, the air pressure inside the main body portion 21 can increase, thus providing the user with appropriate elasticity when using the neck pillow 100. Furthermore, by winding the suction portion 24 toward the main body portion 21, the neck pillow 100 can be made compact during use.

[0078] The present invention has been described above through the above embodiments, but the present invention is not limited to the above embodiments, and modifications can be made within the scope of the present invention.

[0079] In the above embodiment, the neck pillow 100 is described as an example of bedding, but it is not limited to this case. For example, it can also be used for items that are used by filling air, such as air beds, air mattresses, pillows, and bolsters.

[0080] In the above embodiment, the neck pillow 100 was described with a cover 40, but it is not limited to this case; it may also be without a cover 40. When the neck pillow 100 does not have a cover 40, the outer surface of the main body 21 of the expansion body 20 is in direct contact with the user's neck. Therefore, it is preferable to change the outer surface of the main body 21 to a material with a good skin feel, or to use a material with a good skin feel.

[0081] In the above embodiment, the locking part 52 is described as being locked by hooking onto the locked parts 55a and 55b, but it is not limited to this case. The locking part 52 and the locked parts 55a and 55b can be any structure that allows the user to keep the inhalation cover 44 wrapped around the main cover 41 side, for example, buttons, hooks, etc. can also be used.

[0082] In the above embodiment, the case where the cylindrical portion 26 extends from the front end of the rear side of the suction portion 24 toward the main body portion 21 has been described, but it is not limited to this case. The cylindrical portion 26 can simply overlap with the suction portion 24 in such a way that it is rolled together with the suction portion 24. Therefore, the cylindrical portion 26 may also extend from approximately the center of the suction portion 24 in the front-rear direction toward the main body portion 21, and the position of the base end of the cylindrical portion 26 is not limited.

[0083] In the above embodiments, the material, shape and size of the expansion body 20 and the cover 40 are specifically described, but are not limited to the above material, shape and size, and can be appropriately changed.

Claims

1. A type of bedding, characterized in that, have: Hollow main body; A hollow suction section extends integrally from the main body and has a suction port at its front end; and The cylindrical portion, inside the suction section, is formed of a soft material. The cylindrical portion extends toward the main body portion and has an outlet for allowing air drawn in from the inlet to flow out toward the main body portion. The outer edges of the left and right sides of the cylindrical portion are fused together with the outer edges of the left and right sides of the suction portion from the rear end to the middle part in the front-rear direction, but are not fused with the suction portion from the middle part to the front end. The middle portion has a welded section, which is welded to the outer edges of the left and right sides of the suction portion in a manner that is wider in the left-right direction than other welded portions. The cylindrical section shrinks due to the pressure of the air flowing out into the main body, blocking the outlet, thus the cylindrical section functions as a check valve. The cylindrical portion seals the main body by winding the suction portion toward the main body portion, thereby winding it together with the suction portion toward the main body portion. The width of the inhalation section in the left-right direction is greater than the width of the neck insertion section in the left-right direction. The inhalation unit has a core component arranged along the opening of the inhalation port. When the suction part and the cylindrical part that serves as a check valve are wound together toward the main body, the core component is used as the core for winding.

2. The bedding according to claim 1, characterized in that, The outlet is located near the boundary between the main body and the suction section.

3. The bedding according to claim 1, characterized in that, The main body has a rear portion that covers the user's neck from the rear and a pair of side portions that cover the user's neck from the left and right, thus surrounding the user's neck.

4. The bedding according to claim 1, characterized in that, The bedding includes a cover that covers the main body and the inhalation part. The cover is detachable from the main body and the inhalation part.

5. The bedding according to claim 4, characterized in that, The cover is integrally composed of a main cover portion that covers the main body portion and an inhalation cover portion that covers the inhalation portion. The cylindrical portion seals the main body by winding the inhalation hood toward the main body hood, together with the inhalation hood and the inhalation portion, toward the main body hood.

Images